From a4308b29a42a00fcbffa7d6d041946feeddc0ce9 Mon Sep 17 00:00:00 2001 From: Jaeden Amero Date: Fri, 2 Nov 2018 11:09:10 +0000 Subject: [PATCH] Remove unused TLS, NET, and X.509 files We've removed all software that depends on or uses the TLS, NET, and X.509 modules. This means TLS, NET, and X.509 are unused and can be removed. Remove TLS, NET, and X.509. --- doxygen/input/doc_ssltls.h | 51 - doxygen/input/doc_tcpip.h | 46 - doxygen/input/doc_x509.h | 45 - include/mbedtls/debug.h | 265 - include/mbedtls/net.h | 37 - include/mbedtls/net_sockets.h | 271 - include/mbedtls/pkcs11.h | 175 - include/mbedtls/ssl.h | 3494 --------- include/mbedtls/ssl_cache.h | 151 - include/mbedtls/ssl_ciphersuites.h | 558 -- include/mbedtls/ssl_cookie.h | 115 - include/mbedtls/ssl_internal.h | 819 -- include/mbedtls/ssl_ticket.h | 142 - include/mbedtls/x509.h | 339 - include/mbedtls/x509_crl.h | 174 - include/mbedtls/x509_crt.h | 921 --- include/mbedtls/x509_csr.h | 307 - library/certs.c | 436 -- library/debug.c | 438 -- library/error.c | 200 - library/net_sockets.c | 668 -- library/pkcs11.c | 240 - library/ssl_cache.c | 353 - library/ssl_ciphersuites.c | 2373 ------ library/ssl_cli.c | 3944 ---------- library/ssl_cookie.c | 256 - library/ssl_srv.c | 4437 ----------- library/ssl_ticket.c | 595 -- library/ssl_tls.c | 10634 -------------------------- library/x509.c | 1062 --- library/x509_create.c | 379 - library/x509_crl.c | 773 -- library/x509_crt.c | 2879 ------- library/x509_csr.c | 419 - library/x509write_crt.c | 495 -- library/x509write_csr.c | 287 - programs/test/cpp_dummy_build.cpp | 10 - programs/test/query_config.c | 13 - scripts/data_files/query_config.fmt | 13 - visualc/VS2010/mbedTLS.vcxproj | 32 - 40 files changed, 38846 deletions(-) delete mode 100644 doxygen/input/doc_ssltls.h delete mode 100644 doxygen/input/doc_tcpip.h delete mode 100644 doxygen/input/doc_x509.h delete mode 100644 include/mbedtls/debug.h delete mode 100644 include/mbedtls/net.h delete mode 100644 include/mbedtls/net_sockets.h delete mode 100644 include/mbedtls/pkcs11.h delete mode 100644 include/mbedtls/ssl.h delete mode 100644 include/mbedtls/ssl_cache.h delete mode 100644 include/mbedtls/ssl_ciphersuites.h delete mode 100644 include/mbedtls/ssl_cookie.h delete mode 100644 include/mbedtls/ssl_internal.h delete mode 100644 include/mbedtls/ssl_ticket.h delete mode 100644 include/mbedtls/x509.h delete mode 100644 include/mbedtls/x509_crl.h delete mode 100644 include/mbedtls/x509_crt.h delete mode 100644 include/mbedtls/x509_csr.h delete mode 100644 library/certs.c delete mode 100644 library/debug.c delete mode 100644 library/net_sockets.c delete mode 100644 library/pkcs11.c delete mode 100644 library/ssl_cache.c delete mode 100644 library/ssl_ciphersuites.c delete mode 100644 library/ssl_cli.c delete mode 100644 library/ssl_cookie.c delete mode 100644 library/ssl_srv.c delete mode 100644 library/ssl_ticket.c delete mode 100644 library/ssl_tls.c delete mode 100644 library/x509.c delete mode 100644 library/x509_create.c delete mode 100644 library/x509_crl.c delete mode 100644 library/x509_crt.c delete mode 100644 library/x509_csr.c delete mode 100644 library/x509write_crt.c delete mode 100644 library/x509write_csr.c diff --git a/doxygen/input/doc_ssltls.h b/doxygen/input/doc_ssltls.h deleted file mode 100644 index 4addfb38e..000000000 --- a/doxygen/input/doc_ssltls.h +++ /dev/null @@ -1,51 +0,0 @@ -/** - * \file doc_ssltls.h - * - * \brief SSL/TLS communication module documentation file. - */ -/* - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -/** - * @addtogroup ssltls_communication_module SSL/TLS communication module - * - * The SSL/TLS communication module provides the means to create an SSL/TLS - * communication channel. - * - * The basic provisions are: - * - initialise an SSL/TLS context (see \c mbedtls_ssl_init()). - * - perform an SSL/TLS handshake (see \c mbedtls_ssl_handshake()). - * - read/write (see \c mbedtls_ssl_read() and \c mbedtls_ssl_write()). - * - notify a peer that connection is being closed (see \c mbedtls_ssl_close_notify()). - * - * Many aspects of such a channel are set through parameters and callback - * functions: - * - the endpoint role: client or server. - * - the authentication mode. Should verification take place. - * - the Host-to-host communication channel. A TCP/IP module is provided. - * - the random number generator (RNG). - * - the ciphers to use for encryption/decryption. - * - session control functions. - * - X.509 parameters for certificate-handling and key exchange. - * - * This module can be used to create an SSL/TLS server and client and to provide a basic - * framework to setup and communicate through an SSL/TLS communication channel.\n - * Note that you need to provide for several aspects yourself as mentioned above. - */ diff --git a/doxygen/input/doc_tcpip.h b/doxygen/input/doc_tcpip.h deleted file mode 100644 index 95f458601..000000000 --- a/doxygen/input/doc_tcpip.h +++ /dev/null @@ -1,46 +0,0 @@ -/** - * \file doc_tcpip.h - * - * \brief TCP/IP communication module documentation file. - */ -/* - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -/** - * @addtogroup tcpip_communication_module TCP/IP communication module - * - * The TCP/IP communication module provides for a channel of - * communication for the \link ssltls_communication_module SSL/TLS communication - * module\endlink to use. - * In the TCP/IP-model it provides for communication up to the Transport - * (or Host-to-host) layer. - * SSL/TLS resides on top of that, in the Application layer, and makes use of - * its basic provisions: - * - listening on a port (see \c mbedtls_net_bind()). - * - accepting a connection (through \c mbedtls_net_accept()). - * - read/write (through \c mbedtls_net_recv()/\c mbedtls_net_send()). - * - close a connection (through \c mbedtls_net_close()). - * - * This way you have the means to, for example, implement and use an UDP or - * IPSec communication solution as a basis. - * - * This module can be used at server- and clientside to provide a basic - * means of communication over the internet. - */ diff --git a/doxygen/input/doc_x509.h b/doxygen/input/doc_x509.h deleted file mode 100644 index 9b52569bb..000000000 --- a/doxygen/input/doc_x509.h +++ /dev/null @@ -1,45 +0,0 @@ -/** - * \file doc_x509.h - * - * \brief X.509 module documentation file. - */ -/* - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -/** - * @addtogroup x509_module X.509 module - * - * The X.509 module provides X.509 support for reading, writing and verification - * of certificates. - * In summary: - * - X.509 certificate (CRT) reading (see \c mbedtls_x509_crt_parse(), - * \c mbedtls_x509_crt_parse_der(), \c mbedtls_x509_crt_parse_file()). - * - X.509 certificate revocation list (CRL) reading (see - * \c mbedtls_x509_crl_parse(), \c mbedtls_x509_crl_parse_der(), - * and \c mbedtls_x509_crl_parse_file()). - * - X.509 certificate signature verification (see \c - * mbedtls_x509_crt_verify() and \c mbedtls_x509_crt_verify_with_profile(). - * - X.509 certificate writing and certificate request writing (see - * \c mbedtls_x509write_crt_der() and \c mbedtls_x509write_csr_der()). - * - * This module can be used to build a certificate authority (CA) chain and - * verify its signature. It is also used to generate Certificate Signing - * Requests and X.509 certificates just as a CA would do. - */ diff --git a/include/mbedtls/debug.h b/include/mbedtls/debug.h deleted file mode 100644 index 736444bb7..000000000 --- a/include/mbedtls/debug.h +++ /dev/null @@ -1,265 +0,0 @@ -/** - * \file debug.h - * - * \brief Functions for controlling and providing debug output from the library. - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_DEBUG_H -#define MBEDTLS_DEBUG_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "ssl.h" - -#if defined(MBEDTLS_ECP_C) -#include "ecp.h" -#endif - -#if defined(MBEDTLS_DEBUG_C) - -#define MBEDTLS_DEBUG_STRIP_PARENS( ... ) __VA_ARGS__ - -#define MBEDTLS_SSL_DEBUG_MSG( level, args ) \ - mbedtls_debug_print_msg( ssl, level, __FILE__, __LINE__, \ - MBEDTLS_DEBUG_STRIP_PARENS args ) - -#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) \ - mbedtls_debug_print_ret( ssl, level, __FILE__, __LINE__, text, ret ) - -#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) \ - mbedtls_debug_print_buf( ssl, level, __FILE__, __LINE__, text, buf, len ) - -#if defined(MBEDTLS_BIGNUM_C) -#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) \ - mbedtls_debug_print_mpi( ssl, level, __FILE__, __LINE__, text, X ) -#endif - -#if defined(MBEDTLS_ECP_C) -#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) \ - mbedtls_debug_print_ecp( ssl, level, __FILE__, __LINE__, text, X ) -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) \ - mbedtls_debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt ) -#endif - -#if defined(MBEDTLS_ECDH_C) -#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr ) \ - mbedtls_debug_printf_ecdh( ssl, level, __FILE__, __LINE__, ecdh, attr ) -#endif - -#else /* MBEDTLS_DEBUG_C */ - -#define MBEDTLS_SSL_DEBUG_MSG( level, args ) do { } while( 0 ) -#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) do { } while( 0 ) -#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) do { } while( 0 ) -#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) do { } while( 0 ) -#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) do { } while( 0 ) -#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) do { } while( 0 ) -#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr ) do { } while( 0 ) - -#endif /* MBEDTLS_DEBUG_C */ - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief Set the threshold error level to handle globally all debug output. - * Debug messages that have a level over the threshold value are - * discarded. - * (Default value: 0 = No debug ) - * - * \param threshold theshold level of messages to filter on. Messages at a - * higher level will be discarded. - * - Debug levels - * - 0 No debug - * - 1 Error - * - 2 State change - * - 3 Informational - * - 4 Verbose - */ -void mbedtls_debug_set_threshold( int threshold ); - -/** - * \brief Print a message to the debug output. This function is always used - * through the MBEDTLS_SSL_DEBUG_MSG() macro, which supplies the ssl - * context, file and line number parameters. - * - * \param ssl SSL context - * \param level error level of the debug message - * \param file file the message has occurred in - * \param line line number the message has occurred at - * \param format format specifier, in printf format - * \param ... variables used by the format specifier - * - * \attention This function is intended for INTERNAL usage within the - * library only. - */ -void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *format, ... ); - -/** - * \brief Print the return value of a function to the debug output. This - * function is always used through the MBEDTLS_SSL_DEBUG_RET() macro, - * which supplies the ssl context, file and line number parameters. - * - * \param ssl SSL context - * \param level error level of the debug message - * \param file file the error has occurred in - * \param line line number the error has occurred in - * \param text the name of the function that returned the error - * \param ret the return code value - * - * \attention This function is intended for INTERNAL usage within the - * library only. - */ -void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, int ret ); - -/** - * \brief Output a buffer of size len bytes to the debug output. This function - * is always used through the MBEDTLS_SSL_DEBUG_BUF() macro, - * which supplies the ssl context, file and line number parameters. - * - * \param ssl SSL context - * \param level error level of the debug message - * \param file file the error has occurred in - * \param line line number the error has occurred in - * \param text a name or label for the buffer being dumped. Normally the - * variable or buffer name - * \param buf the buffer to be outputted - * \param len length of the buffer - * - * \attention This function is intended for INTERNAL usage within the - * library only. - */ -void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, const char *text, - const unsigned char *buf, size_t len ); - -#if defined(MBEDTLS_BIGNUM_C) -/** - * \brief Print a MPI variable to the debug output. This function is always - * used through the MBEDTLS_SSL_DEBUG_MPI() macro, which supplies the - * ssl context, file and line number parameters. - * - * \param ssl SSL context - * \param level error level of the debug message - * \param file file the error has occurred in - * \param line line number the error has occurred in - * \param text a name or label for the MPI being output. Normally the - * variable name - * \param X the MPI variable - * - * \attention This function is intended for INTERNAL usage within the - * library only. - */ -void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, const mbedtls_mpi *X ); -#endif - -#if defined(MBEDTLS_ECP_C) -/** - * \brief Print an ECP point to the debug output. This function is always - * used through the MBEDTLS_SSL_DEBUG_ECP() macro, which supplies the - * ssl context, file and line number parameters. - * - * \param ssl SSL context - * \param level error level of the debug message - * \param file file the error has occurred in - * \param line line number the error has occurred in - * \param text a name or label for the ECP point being output. Normally the - * variable name - * \param X the ECP point - * - * \attention This function is intended for INTERNAL usage within the - * library only. - */ -void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, const mbedtls_ecp_point *X ); -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * \brief Print a X.509 certificate structure to the debug output. This - * function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro, - * which supplies the ssl context, file and line number parameters. - * - * \param ssl SSL context - * \param level error level of the debug message - * \param file file the error has occurred in - * \param line line number the error has occurred in - * \param text a name or label for the certificate being output - * \param crt X.509 certificate structure - * - * \attention This function is intended for INTERNAL usage within the - * library only. - */ -void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, const mbedtls_x509_crt *crt ); -#endif - -#if defined(MBEDTLS_ECDH_C) -typedef enum -{ - MBEDTLS_DEBUG_ECDH_Q, - MBEDTLS_DEBUG_ECDH_QP, - MBEDTLS_DEBUG_ECDH_Z, -} mbedtls_debug_ecdh_attr; - -/** - * \brief Print a field of the ECDH structure in the SSL context to the debug - * output. This function is always used through the - * MBEDTLS_SSL_DEBUG_ECDH() macro, which supplies the ssl context, file - * and line number parameters. - * - * \param ssl SSL context - * \param level error level of the debug message - * \param file file the error has occurred in - * \param line line number the error has occurred in - * \param ecdh the ECDH context - * \param attr the identifier of the attribute being output - * - * \attention This function is intended for INTERNAL usage within the - * library only. - */ -void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const mbedtls_ecdh_context *ecdh, - mbedtls_debug_ecdh_attr attr ); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* debug.h */ - diff --git a/include/mbedtls/net.h b/include/mbedtls/net.h deleted file mode 100644 index 8cead58e5..000000000 --- a/include/mbedtls/net.h +++ /dev/null @@ -1,37 +0,0 @@ -/** - * \file net.h - * - * \brief Deprecated header file that includes net_sockets.h - * - * \deprecated Superseded by mbedtls/net_sockets.h - */ -/* - * Copyright (C) 2006-2016, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if !defined(MBEDTLS_DEPRECATED_REMOVED) -#include "net_sockets.h" -#if defined(MBEDTLS_DEPRECATED_WARNING) -#warning "Deprecated header file: Superseded by mbedtls/net_sockets.h" -#endif /* MBEDTLS_DEPRECATED_WARNING */ -#endif /* !MBEDTLS_DEPRECATED_REMOVED */ diff --git a/include/mbedtls/net_sockets.h b/include/mbedtls/net_sockets.h deleted file mode 100644 index 4c7ef00fe..000000000 --- a/include/mbedtls/net_sockets.h +++ /dev/null @@ -1,271 +0,0 @@ -/** - * \file net_sockets.h - * - * \brief Network sockets abstraction layer to integrate Mbed TLS into a - * BSD-style sockets API. - * - * The network sockets module provides an example integration of the - * Mbed TLS library into a BSD sockets implementation. The module is - * intended to be an example of how Mbed TLS can be integrated into a - * networking stack, as well as to be Mbed TLS's network integration - * for its supported platforms. - * - * The module is intended only to be used with the Mbed TLS library and - * is not intended to be used by third party application software - * directly. - * - * The supported platforms are as follows: - * * Microsoft Windows and Windows CE - * * POSIX/Unix platforms including Linux, OS X - * - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_NET_SOCKETS_H -#define MBEDTLS_NET_SOCKETS_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "ssl.h" - -#include -#include - -#define MBEDTLS_ERR_NET_SOCKET_FAILED -0x0042 /**< Failed to open a socket. */ -#define MBEDTLS_ERR_NET_CONNECT_FAILED -0x0044 /**< The connection to the given server / port failed. */ -#define MBEDTLS_ERR_NET_BIND_FAILED -0x0046 /**< Binding of the socket failed. */ -#define MBEDTLS_ERR_NET_LISTEN_FAILED -0x0048 /**< Could not listen on the socket. */ -#define MBEDTLS_ERR_NET_ACCEPT_FAILED -0x004A /**< Could not accept the incoming connection. */ -#define MBEDTLS_ERR_NET_RECV_FAILED -0x004C /**< Reading information from the socket failed. */ -#define MBEDTLS_ERR_NET_SEND_FAILED -0x004E /**< Sending information through the socket failed. */ -#define MBEDTLS_ERR_NET_CONN_RESET -0x0050 /**< Connection was reset by peer. */ -#define MBEDTLS_ERR_NET_UNKNOWN_HOST -0x0052 /**< Failed to get an IP address for the given hostname. */ -#define MBEDTLS_ERR_NET_BUFFER_TOO_SMALL -0x0043 /**< Buffer is too small to hold the data. */ -#define MBEDTLS_ERR_NET_INVALID_CONTEXT -0x0045 /**< The context is invalid, eg because it was free()ed. */ -#define MBEDTLS_ERR_NET_POLL_FAILED -0x0047 /**< Polling the net context failed. */ -#define MBEDTLS_ERR_NET_BAD_INPUT_DATA -0x0049 /**< Input invalid. */ - -#define MBEDTLS_NET_LISTEN_BACKLOG 10 /**< The backlog that listen() should use. */ - -#define MBEDTLS_NET_PROTO_TCP 0 /**< The TCP transport protocol */ -#define MBEDTLS_NET_PROTO_UDP 1 /**< The UDP transport protocol */ - -#define MBEDTLS_NET_POLL_READ 1 /**< Used in \c mbedtls_net_poll to check for pending data */ -#define MBEDTLS_NET_POLL_WRITE 2 /**< Used in \c mbedtls_net_poll to check if write possible */ - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * Wrapper type for sockets. - * - * Currently backed by just a file descriptor, but might be more in the future - * (eg two file descriptors for combined IPv4 + IPv6 support, or additional - * structures for hand-made UDP demultiplexing). - */ -typedef struct mbedtls_net_context -{ - int fd; /**< The underlying file descriptor */ -} -mbedtls_net_context; - -/** - * \brief Initialize a context - * Just makes the context ready to be used or freed safely. - * - * \param ctx Context to initialize - */ -void mbedtls_net_init( mbedtls_net_context *ctx ); - -/** - * \brief Initiate a connection with host:port in the given protocol - * - * \param ctx Socket to use - * \param host Host to connect to - * \param port Port to connect to - * \param proto Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP - * - * \return 0 if successful, or one of: - * MBEDTLS_ERR_NET_SOCKET_FAILED, - * MBEDTLS_ERR_NET_UNKNOWN_HOST, - * MBEDTLS_ERR_NET_CONNECT_FAILED - * - * \note Sets the socket in connected mode even with UDP. - */ -int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, const char *port, int proto ); - -/** - * \brief Create a receiving socket on bind_ip:port in the chosen - * protocol. If bind_ip == NULL, all interfaces are bound. - * - * \param ctx Socket to use - * \param bind_ip IP to bind to, can be NULL - * \param port Port number to use - * \param proto Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP - * - * \return 0 if successful, or one of: - * MBEDTLS_ERR_NET_SOCKET_FAILED, - * MBEDTLS_ERR_NET_BIND_FAILED, - * MBEDTLS_ERR_NET_LISTEN_FAILED - * - * \note Regardless of the protocol, opens the sockets and binds it. - * In addition, make the socket listening if protocol is TCP. - */ -int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto ); - -/** - * \brief Accept a connection from a remote client - * - * \param bind_ctx Relevant socket - * \param client_ctx Will contain the connected client socket - * \param client_ip Will contain the client IP address, can be NULL - * \param buf_size Size of the client_ip buffer - * \param ip_len Will receive the size of the client IP written, - * can be NULL if client_ip is null - * - * \return 0 if successful, or - * MBEDTLS_ERR_NET_ACCEPT_FAILED, or - * MBEDTLS_ERR_NET_BUFFER_TOO_SMALL if buf_size is too small, - * MBEDTLS_ERR_SSL_WANT_READ if bind_fd was set to - * non-blocking and accept() would block. - */ -int mbedtls_net_accept( mbedtls_net_context *bind_ctx, - mbedtls_net_context *client_ctx, - void *client_ip, size_t buf_size, size_t *ip_len ); - -/** - * \brief Check and wait for the context to be ready for read/write - * - * \param ctx Socket to check - * \param rw Bitflag composed of MBEDTLS_NET_POLL_READ and - * MBEDTLS_NET_POLL_WRITE specifying the events - * to wait for: - * - If MBEDTLS_NET_POLL_READ is set, the function - * will return as soon as the net context is available - * for reading. - * - If MBEDTLS_NET_POLL_WRITE is set, the function - * will return as soon as the net context is available - * for writing. - * \param timeout Maximal amount of time to wait before returning, - * in milliseconds. If \c timeout is zero, the - * function returns immediately. If \c timeout is - * -1u, the function blocks potentially indefinitely. - * - * \return Bitmask composed of MBEDTLS_NET_POLL_READ/WRITE - * on success or timeout, or a negative return code otherwise. - */ -int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout ); - -/** - * \brief Set the socket blocking - * - * \param ctx Socket to set - * - * \return 0 if successful, or a non-zero error code - */ -int mbedtls_net_set_block( mbedtls_net_context *ctx ); - -/** - * \brief Set the socket non-blocking - * - * \param ctx Socket to set - * - * \return 0 if successful, or a non-zero error code - */ -int mbedtls_net_set_nonblock( mbedtls_net_context *ctx ); - -/** - * \brief Portable usleep helper - * - * \param usec Amount of microseconds to sleep - * - * \note Real amount of time slept will not be less than - * select()'s timeout granularity (typically, 10ms). - */ -void mbedtls_net_usleep( unsigned long usec ); - -/** - * \brief Read at most 'len' characters. If no error occurs, - * the actual amount read is returned. - * - * \param ctx Socket - * \param buf The buffer to write to - * \param len Maximum length of the buffer - * - * \return the number of bytes received, - * or a non-zero error code; with a non-blocking socket, - * MBEDTLS_ERR_SSL_WANT_READ indicates read() would block. - */ -int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len ); - -/** - * \brief Write at most 'len' characters. If no error occurs, - * the actual amount read is returned. - * - * \param ctx Socket - * \param buf The buffer to read from - * \param len The length of the buffer - * - * \return the number of bytes sent, - * or a non-zero error code; with a non-blocking socket, - * MBEDTLS_ERR_SSL_WANT_WRITE indicates write() would block. - */ -int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len ); - -/** - * \brief Read at most 'len' characters, blocking for at most - * 'timeout' seconds. If no error occurs, the actual amount - * read is returned. - * - * \param ctx Socket - * \param buf The buffer to write to - * \param len Maximum length of the buffer - * \param timeout Maximum number of milliseconds to wait for data - * 0 means no timeout (wait forever) - * - * \return the number of bytes received, - * or a non-zero error code: - * MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out, - * MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal. - * - * \note This function will block (until data becomes available or - * timeout is reached) even if the socket is set to - * non-blocking. Handling timeouts with non-blocking reads - * requires a different strategy. - */ -int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, size_t len, - uint32_t timeout ); - -/** - * \brief Gracefully shutdown the connection and free associated data - * - * \param ctx The context to free - */ -void mbedtls_net_free( mbedtls_net_context *ctx ); - -#ifdef __cplusplus -} -#endif - -#endif /* net_sockets.h */ diff --git a/include/mbedtls/pkcs11.h b/include/mbedtls/pkcs11.h deleted file mode 100644 index 02427ddc1..000000000 --- a/include/mbedtls/pkcs11.h +++ /dev/null @@ -1,175 +0,0 @@ -/** - * \file pkcs11.h - * - * \brief Wrapper for PKCS#11 library libpkcs11-helper - * - * \author Adriaan de Jong - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_PKCS11_H -#define MBEDTLS_PKCS11_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_PKCS11_C) - -#include "x509_crt.h" - -#include - -#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ - !defined(inline) && !defined(__cplusplus) -#define inline __inline -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * Context for PKCS #11 private keys. - */ -typedef struct mbedtls_pkcs11_context -{ - pkcs11h_certificate_t pkcs11h_cert; - int len; -} mbedtls_pkcs11_context; - -/** - * Initialize a mbedtls_pkcs11_context. - * (Just making memory references valid.) - */ -void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx ); - -/** - * Fill in a mbed TLS certificate, based on the given PKCS11 helper certificate. - * - * \param cert X.509 certificate to fill - * \param pkcs11h_cert PKCS #11 helper certificate - * - * \return 0 on success. - */ -int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11h_cert ); - -/** - * Set up a mbedtls_pkcs11_context storing the given certificate. Note that the - * mbedtls_pkcs11_context will take over control of the certificate, freeing it when - * done. - * - * \param priv_key Private key structure to fill. - * \param pkcs11_cert PKCS #11 helper certificate - * - * \return 0 on success - */ -int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key, - pkcs11h_certificate_t pkcs11_cert ); - -/** - * Free the contents of the given private key context. Note that the structure - * itself is not freed. - * - * \param priv_key Private key structure to cleanup - */ -void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key ); - -/** - * \brief Do an RSA private key decrypt, then remove the message - * padding - * - * \param ctx PKCS #11 context - * \param mode must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature - * \param input buffer holding the encrypted data - * \param output buffer that will hold the plaintext - * \param olen will contain the plaintext length - * \param output_max_len maximum length of the output buffer - * - * \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code - * - * \note The output buffer must be as large as the size - * of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise - * an error is thrown. - */ -int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx, - int mode, size_t *olen, - const unsigned char *input, - unsigned char *output, - size_t output_max_len ); - -/** - * \brief Do a private RSA to sign a message digest - * - * \param ctx PKCS #11 context - * \param mode must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature - * \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data) - * \param hashlen message digest length (for MBEDTLS_MD_NONE only) - * \param hash buffer holding the message digest - * \param sig buffer that will hold the ciphertext - * - * \return 0 if the signing operation was successful, - * or an MBEDTLS_ERR_RSA_XXX error code - * - * \note The "sig" buffer must be as large as the size - * of ctx->N (eg. 128 bytes if RSA-1024 is used). - */ -int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx, - int mode, - mbedtls_md_type_t md_alg, - unsigned int hashlen, - const unsigned char *hash, - unsigned char *sig ); - -/** - * SSL/TLS wrappers for PKCS#11 functions - */ -static inline int mbedtls_ssl_pkcs11_decrypt( void *ctx, int mode, size_t *olen, - const unsigned char *input, unsigned char *output, - size_t output_max_len ) -{ - return mbedtls_pkcs11_decrypt( (mbedtls_pkcs11_context *) ctx, mode, olen, input, output, - output_max_len ); -} - -static inline int mbedtls_ssl_pkcs11_sign( void *ctx, - int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, - int mode, mbedtls_md_type_t md_alg, unsigned int hashlen, - const unsigned char *hash, unsigned char *sig ) -{ - ((void) f_rng); - ((void) p_rng); - return mbedtls_pkcs11_sign( (mbedtls_pkcs11_context *) ctx, mode, md_alg, - hashlen, hash, sig ); -} - -static inline size_t mbedtls_ssl_pkcs11_key_len( void *ctx ) -{ - return ( (mbedtls_pkcs11_context *) ctx )->len; -} - -#ifdef __cplusplus -} -#endif - -#endif /* MBEDTLS_PKCS11_C */ - -#endif /* MBEDTLS_PKCS11_H */ diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h deleted file mode 100644 index 135be0501..000000000 --- a/include/mbedtls/ssl.h +++ /dev/null @@ -1,3494 +0,0 @@ -/** - * \file ssl.h - * - * \brief SSL/TLS functions. - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_SSL_H -#define MBEDTLS_SSL_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "bignum.h" -#include "ecp.h" - -#include "ssl_ciphersuites.h" - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#include "x509_crt.h" -#include "x509_crl.h" -#endif - -#if defined(MBEDTLS_DHM_C) -#include "dhm.h" -#endif - -#if defined(MBEDTLS_ECDH_C) -#include "ecdh.h" -#endif - -#if defined(MBEDTLS_ZLIB_SUPPORT) - -#if defined(MBEDTLS_DEPRECATED_WARNING) -#warning "Record compression support via MBEDTLS_ZLIB_SUPPORT is deprecated and will be removed in the next major revision of the library" -#endif - -#if defined(MBEDTLS_DEPRECATED_REMOVED) -#error "Record compression support via MBEDTLS_ZLIB_SUPPORT is deprecated and cannot be used if MBEDTLS_DEPRECATED_REMOVED is set" -#endif - -#include "zlib.h" -#endif - -#if defined(MBEDTLS_HAVE_TIME) -#include "platform_time.h" -#endif - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "psa/crypto.h" -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -/* - * SSL Error codes - */ -#define MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE -0x7080 /**< The requested feature is not available. */ -#define MBEDTLS_ERR_SSL_BAD_INPUT_DATA -0x7100 /**< Bad input parameters to function. */ -#define MBEDTLS_ERR_SSL_INVALID_MAC -0x7180 /**< Verification of the message MAC failed. */ -#define MBEDTLS_ERR_SSL_INVALID_RECORD -0x7200 /**< An invalid SSL record was received. */ -#define MBEDTLS_ERR_SSL_CONN_EOF -0x7280 /**< The connection indicated an EOF. */ -#define MBEDTLS_ERR_SSL_UNKNOWN_CIPHER -0x7300 /**< An unknown cipher was received. */ -#define MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN -0x7380 /**< The server has no ciphersuites in common with the client. */ -#define MBEDTLS_ERR_SSL_NO_RNG -0x7400 /**< No RNG was provided to the SSL module. */ -#define MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE -0x7480 /**< No client certification received from the client, but required by the authentication mode. */ -#define MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE -0x7500 /**< Our own certificate(s) is/are too large to send in an SSL message. */ -#define MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED -0x7580 /**< The own certificate is not set, but needed by the server. */ -#define MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED -0x7600 /**< The own private key or pre-shared key is not set, but needed. */ -#define MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED -0x7680 /**< No CA Chain is set, but required to operate. */ -#define MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE -0x7700 /**< An unexpected message was received from our peer. */ -#define MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE -0x7780 /**< A fatal alert message was received from our peer. */ -#define MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED -0x7800 /**< Verification of our peer failed. */ -#define MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY -0x7880 /**< The peer notified us that the connection is going to be closed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO -0x7900 /**< Processing of the ClientHello handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO -0x7980 /**< Processing of the ServerHello handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE -0x7A00 /**< Processing of the Certificate handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST -0x7A80 /**< Processing of the CertificateRequest handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE -0x7B00 /**< Processing of the ServerKeyExchange handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE -0x7B80 /**< Processing of the ServerHelloDone handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE -0x7C00 /**< Processing of the ClientKeyExchange handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP -0x7C80 /**< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS -0x7D00 /**< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY -0x7D80 /**< Processing of the CertificateVerify handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC -0x7E00 /**< Processing of the ChangeCipherSpec handshake message failed. */ -#define MBEDTLS_ERR_SSL_BAD_HS_FINISHED -0x7E80 /**< Processing of the Finished handshake message failed. */ -#define MBEDTLS_ERR_SSL_ALLOC_FAILED -0x7F00 /**< Memory allocation failed */ -#define MBEDTLS_ERR_SSL_HW_ACCEL_FAILED -0x7F80 /**< Hardware acceleration function returned with error */ -#define MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH -0x6F80 /**< Hardware acceleration function skipped / left alone data */ -#define MBEDTLS_ERR_SSL_COMPRESSION_FAILED -0x6F00 /**< Processing of the compression / decompression failed */ -#define MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION -0x6E80 /**< Handshake protocol not within min/max boundaries */ -#define MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET -0x6E00 /**< Processing of the NewSessionTicket handshake message failed. */ -#define MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED -0x6D80 /**< Session ticket has expired. */ -#define MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH -0x6D00 /**< Public key type mismatch (eg, asked for RSA key exchange and presented EC key) */ -#define MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY -0x6C80 /**< Unknown identity received (eg, PSK identity) */ -#define MBEDTLS_ERR_SSL_INTERNAL_ERROR -0x6C00 /**< Internal error (eg, unexpected failure in lower-level module) */ -#define MBEDTLS_ERR_SSL_COUNTER_WRAPPING -0x6B80 /**< A counter would wrap (eg, too many messages exchanged). */ -#define MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO -0x6B00 /**< Unexpected message at ServerHello in renegotiation. */ -#define MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED -0x6A80 /**< DTLS client must retry for hello verification */ -#define MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL -0x6A00 /**< A buffer is too small to receive or write a message */ -#define MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE -0x6980 /**< None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages). */ -#define MBEDTLS_ERR_SSL_WANT_READ -0x6900 /**< No data of requested type currently available on underlying transport. */ -#define MBEDTLS_ERR_SSL_WANT_WRITE -0x6880 /**< Connection requires a write call. */ -#define MBEDTLS_ERR_SSL_TIMEOUT -0x6800 /**< The operation timed out. */ -#define MBEDTLS_ERR_SSL_CLIENT_RECONNECT -0x6780 /**< The client initiated a reconnect from the same port. */ -#define MBEDTLS_ERR_SSL_UNEXPECTED_RECORD -0x6700 /**< Record header looks valid but is not expected. */ -#define MBEDTLS_ERR_SSL_NON_FATAL -0x6680 /**< The alert message received indicates a non-fatal error. */ -#define MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH -0x6600 /**< Couldn't set the hash for verifying CertificateVerify */ -#define MBEDTLS_ERR_SSL_CONTINUE_PROCESSING -0x6580 /**< Internal-only message signaling that further message-processing should be done */ -#define MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS -0x6500 /**< The asynchronous operation is not completed yet. */ -#define MBEDTLS_ERR_SSL_EARLY_MESSAGE -0x6480 /**< Internal-only message signaling that a message arrived early. */ -#define MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS -0x7000 /**< A cryptographic operation is in progress. Try again later. */ - -/* - * Various constants - */ -#define MBEDTLS_SSL_MAJOR_VERSION_3 3 -#define MBEDTLS_SSL_MINOR_VERSION_0 0 /*!< SSL v3.0 */ -#define MBEDTLS_SSL_MINOR_VERSION_1 1 /*!< TLS v1.0 */ -#define MBEDTLS_SSL_MINOR_VERSION_2 2 /*!< TLS v1.1 */ -#define MBEDTLS_SSL_MINOR_VERSION_3 3 /*!< TLS v1.2 */ - -#define MBEDTLS_SSL_TRANSPORT_STREAM 0 /*!< TLS */ -#define MBEDTLS_SSL_TRANSPORT_DATAGRAM 1 /*!< DTLS */ - -#define MBEDTLS_SSL_MAX_HOST_NAME_LEN 255 /*!< Maximum host name defined in RFC 1035 */ - -/* RFC 6066 section 4, see also mfl_code_to_length in ssl_tls.c - * NONE must be zero so that memset()ing structure to zero works */ -#define MBEDTLS_SSL_MAX_FRAG_LEN_NONE 0 /*!< don't use this extension */ -#define MBEDTLS_SSL_MAX_FRAG_LEN_512 1 /*!< MaxFragmentLength 2^9 */ -#define MBEDTLS_SSL_MAX_FRAG_LEN_1024 2 /*!< MaxFragmentLength 2^10 */ -#define MBEDTLS_SSL_MAX_FRAG_LEN_2048 3 /*!< MaxFragmentLength 2^11 */ -#define MBEDTLS_SSL_MAX_FRAG_LEN_4096 4 /*!< MaxFragmentLength 2^12 */ -#define MBEDTLS_SSL_MAX_FRAG_LEN_INVALID 5 /*!< first invalid value */ - -#define MBEDTLS_SSL_IS_CLIENT 0 -#define MBEDTLS_SSL_IS_SERVER 1 - -#define MBEDTLS_SSL_IS_NOT_FALLBACK 0 -#define MBEDTLS_SSL_IS_FALLBACK 1 - -#define MBEDTLS_SSL_EXTENDED_MS_DISABLED 0 -#define MBEDTLS_SSL_EXTENDED_MS_ENABLED 1 - -#define MBEDTLS_SSL_ETM_DISABLED 0 -#define MBEDTLS_SSL_ETM_ENABLED 1 - -#define MBEDTLS_SSL_COMPRESS_NULL 0 -#define MBEDTLS_SSL_COMPRESS_DEFLATE 1 - -#define MBEDTLS_SSL_VERIFY_NONE 0 -#define MBEDTLS_SSL_VERIFY_OPTIONAL 1 -#define MBEDTLS_SSL_VERIFY_REQUIRED 2 -#define MBEDTLS_SSL_VERIFY_UNSET 3 /* Used only for sni_authmode */ - -#define MBEDTLS_SSL_LEGACY_RENEGOTIATION 0 -#define MBEDTLS_SSL_SECURE_RENEGOTIATION 1 - -#define MBEDTLS_SSL_RENEGOTIATION_DISABLED 0 -#define MBEDTLS_SSL_RENEGOTIATION_ENABLED 1 - -#define MBEDTLS_SSL_ANTI_REPLAY_DISABLED 0 -#define MBEDTLS_SSL_ANTI_REPLAY_ENABLED 1 - -#define MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED -1 -#define MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT 16 - -#define MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION 0 -#define MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION 1 -#define MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE 2 - -#define MBEDTLS_SSL_TRUNC_HMAC_DISABLED 0 -#define MBEDTLS_SSL_TRUNC_HMAC_ENABLED 1 -#define MBEDTLS_SSL_TRUNCATED_HMAC_LEN 10 /* 80 bits, rfc 6066 section 7 */ - -#define MBEDTLS_SSL_SESSION_TICKETS_DISABLED 0 -#define MBEDTLS_SSL_SESSION_TICKETS_ENABLED 1 - -#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED 0 -#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED 1 - -#define MBEDTLS_SSL_ARC4_ENABLED 0 -#define MBEDTLS_SSL_ARC4_DISABLED 1 - -#define MBEDTLS_SSL_PRESET_DEFAULT 0 -#define MBEDTLS_SSL_PRESET_SUITEB 2 - -#define MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED 1 -#define MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED 0 - -/* - * Default range for DTLS retransmission timer value, in milliseconds. - * RFC 6347 4.2.4.1 says from 1 second to 60 seconds. - */ -#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN 1000 -#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX 60000 - -/** - * \name SECTION: Module settings - * - * The configuration options you can set for this module are in this section. - * Either change them in config.h or define them on the compiler command line. - * \{ - */ - -#if !defined(MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME) -#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME 86400 /**< Lifetime of session tickets (if enabled) */ -#endif - -/* - * Maximum fragment length in bytes, - * determines the size of each of the two internal I/O buffers. - * - * Note: the RFC defines the default size of SSL / TLS messages. If you - * change the value here, other clients / servers may not be able to - * communicate with you anymore. Only change this value if you control - * both sides of the connection and have it reduced at both sides, or - * if you're using the Max Fragment Length extension and you know all your - * peers are using it too! - */ -#if !defined(MBEDTLS_SSL_MAX_CONTENT_LEN) -#define MBEDTLS_SSL_MAX_CONTENT_LEN 16384 /**< Size of the input / output buffer */ -#endif - -#if !defined(MBEDTLS_SSL_IN_CONTENT_LEN) -#define MBEDTLS_SSL_IN_CONTENT_LEN MBEDTLS_SSL_MAX_CONTENT_LEN -#endif - -#if !defined(MBEDTLS_SSL_OUT_CONTENT_LEN) -#define MBEDTLS_SSL_OUT_CONTENT_LEN MBEDTLS_SSL_MAX_CONTENT_LEN -#endif - -/* - * Maximum number of heap-allocated bytes for the purpose of - * DTLS handshake message reassembly and future message buffering. - */ -#if !defined(MBEDTLS_SSL_DTLS_MAX_BUFFERING) -#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768 -#endif - -/* \} name SECTION: Module settings */ - -/* - * Length of the verify data for secure renegotiation - */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) -#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 36 -#else -#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 12 -#endif - -/* - * Signaling ciphersuite values (SCSV) - */ -#define MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO 0xFF /**< renegotiation info ext */ -#define MBEDTLS_SSL_FALLBACK_SCSV_VALUE 0x5600 /**< RFC 7507 section 2 */ - -/* - * Supported Signature and Hash algorithms (For TLS 1.2) - * RFC 5246 section 7.4.1.4.1 - */ -#define MBEDTLS_SSL_HASH_NONE 0 -#define MBEDTLS_SSL_HASH_MD5 1 -#define MBEDTLS_SSL_HASH_SHA1 2 -#define MBEDTLS_SSL_HASH_SHA224 3 -#define MBEDTLS_SSL_HASH_SHA256 4 -#define MBEDTLS_SSL_HASH_SHA384 5 -#define MBEDTLS_SSL_HASH_SHA512 6 - -#define MBEDTLS_SSL_SIG_ANON 0 -#define MBEDTLS_SSL_SIG_RSA 1 -#define MBEDTLS_SSL_SIG_ECDSA 3 - -/* - * Client Certificate Types - * RFC 5246 section 7.4.4 plus RFC 4492 section 5.5 - */ -#define MBEDTLS_SSL_CERT_TYPE_RSA_SIGN 1 -#define MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN 64 - -/* - * Message, alert and handshake types - */ -#define MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC 20 -#define MBEDTLS_SSL_MSG_ALERT 21 -#define MBEDTLS_SSL_MSG_HANDSHAKE 22 -#define MBEDTLS_SSL_MSG_APPLICATION_DATA 23 - -#define MBEDTLS_SSL_ALERT_LEVEL_WARNING 1 -#define MBEDTLS_SSL_ALERT_LEVEL_FATAL 2 - -#define MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY 0 /* 0x00 */ -#define MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE 10 /* 0x0A */ -#define MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC 20 /* 0x14 */ -#define MBEDTLS_SSL_ALERT_MSG_DECRYPTION_FAILED 21 /* 0x15 */ -#define MBEDTLS_SSL_ALERT_MSG_RECORD_OVERFLOW 22 /* 0x16 */ -#define MBEDTLS_SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30 /* 0x1E */ -#define MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE 40 /* 0x28 */ -#define MBEDTLS_SSL_ALERT_MSG_NO_CERT 41 /* 0x29 */ -#define MBEDTLS_SSL_ALERT_MSG_BAD_CERT 42 /* 0x2A */ -#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT 43 /* 0x2B */ -#define MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED 44 /* 0x2C */ -#define MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED 45 /* 0x2D */ -#define MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN 46 /* 0x2E */ -#define MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER 47 /* 0x2F */ -#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA 48 /* 0x30 */ -#define MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED 49 /* 0x31 */ -#define MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR 50 /* 0x32 */ -#define MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR 51 /* 0x33 */ -#define MBEDTLS_SSL_ALERT_MSG_EXPORT_RESTRICTION 60 /* 0x3C */ -#define MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION 70 /* 0x46 */ -#define MBEDTLS_SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71 /* 0x47 */ -#define MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR 80 /* 0x50 */ -#define MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK 86 /* 0x56 */ -#define MBEDTLS_SSL_ALERT_MSG_USER_CANCELED 90 /* 0x5A */ -#define MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION 100 /* 0x64 */ -#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT 110 /* 0x6E */ -#define MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME 112 /* 0x70 */ -#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY 115 /* 0x73 */ -#define MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL 120 /* 0x78 */ - -#define MBEDTLS_SSL_HS_HELLO_REQUEST 0 -#define MBEDTLS_SSL_HS_CLIENT_HELLO 1 -#define MBEDTLS_SSL_HS_SERVER_HELLO 2 -#define MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST 3 -#define MBEDTLS_SSL_HS_NEW_SESSION_TICKET 4 -#define MBEDTLS_SSL_HS_CERTIFICATE 11 -#define MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE 12 -#define MBEDTLS_SSL_HS_CERTIFICATE_REQUEST 13 -#define MBEDTLS_SSL_HS_SERVER_HELLO_DONE 14 -#define MBEDTLS_SSL_HS_CERTIFICATE_VERIFY 15 -#define MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE 16 -#define MBEDTLS_SSL_HS_FINISHED 20 - -/* - * TLS extensions - */ -#define MBEDTLS_TLS_EXT_SERVERNAME 0 -#define MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME 0 - -#define MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH 1 - -#define MBEDTLS_TLS_EXT_TRUNCATED_HMAC 4 - -#define MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES 10 -#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS 11 - -#define MBEDTLS_TLS_EXT_SIG_ALG 13 - -#define MBEDTLS_TLS_EXT_ALPN 16 - -#define MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC 22 /* 0x16 */ -#define MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET 0x0017 /* 23 */ - -#define MBEDTLS_TLS_EXT_SESSION_TICKET 35 - -#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP 256 /* experimental */ - -#define MBEDTLS_TLS_EXT_RENEGOTIATION_INFO 0xFF01 - -/* - * Size defines - */ -#if !defined(MBEDTLS_PSK_MAX_LEN) -#define MBEDTLS_PSK_MAX_LEN 32 /* 256 bits */ -#endif - -/* Dummy type used only for its size */ -union mbedtls_ssl_premaster_secret -{ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) - unsigned char _pms_rsa[48]; /* RFC 5246 8.1.1 */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) - unsigned char _pms_dhm[MBEDTLS_MPI_MAX_SIZE]; /* RFC 5246 8.1.2 */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) - unsigned char _pms_ecdh[MBEDTLS_ECP_MAX_BYTES]; /* RFC 4492 5.10 */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - unsigned char _pms_psk[4 + 2 * MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 2 */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - unsigned char _pms_dhe_psk[4 + MBEDTLS_MPI_MAX_SIZE - + MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 3 */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - unsigned char _pms_rsa_psk[52 + MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 4 */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - unsigned char _pms_ecdhe_psk[4 + MBEDTLS_ECP_MAX_BYTES - + MBEDTLS_PSK_MAX_LEN]; /* RFC 5489 2 */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - unsigned char _pms_ecjpake[32]; /* Thread spec: SHA-256 output */ -#endif -}; - -#define MBEDTLS_PREMASTER_SIZE sizeof( union mbedtls_ssl_premaster_secret ) - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * SSL state machine - */ -typedef enum -{ - MBEDTLS_SSL_HELLO_REQUEST, - MBEDTLS_SSL_CLIENT_HELLO, - MBEDTLS_SSL_SERVER_HELLO, - MBEDTLS_SSL_SERVER_CERTIFICATE, - MBEDTLS_SSL_SERVER_KEY_EXCHANGE, - MBEDTLS_SSL_CERTIFICATE_REQUEST, - MBEDTLS_SSL_SERVER_HELLO_DONE, - MBEDTLS_SSL_CLIENT_CERTIFICATE, - MBEDTLS_SSL_CLIENT_KEY_EXCHANGE, - MBEDTLS_SSL_CERTIFICATE_VERIFY, - MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC, - MBEDTLS_SSL_CLIENT_FINISHED, - MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC, - MBEDTLS_SSL_SERVER_FINISHED, - MBEDTLS_SSL_FLUSH_BUFFERS, - MBEDTLS_SSL_HANDSHAKE_WRAPUP, - MBEDTLS_SSL_HANDSHAKE_OVER, - MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET, - MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT, -} -mbedtls_ssl_states; - -/** - * \brief Callback type: send data on the network. - * - * \note That callback may be either blocking or non-blocking. - * - * \param ctx Context for the send callback (typically a file descriptor) - * \param buf Buffer holding the data to send - * \param len Length of the data to send - * - * \return The callback must return the number of bytes sent if any, - * or a non-zero error code. - * If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_WRITE - * must be returned when the operation would block. - * - * \note The callback is allowed to send fewer bytes than requested. - * It must always return the number of bytes actually sent. - */ -typedef int mbedtls_ssl_send_t( void *ctx, - const unsigned char *buf, - size_t len ); - -/** - * \brief Callback type: receive data from the network. - * - * \note That callback may be either blocking or non-blocking. - * - * \param ctx Context for the receive callback (typically a file - * descriptor) - * \param buf Buffer to write the received data to - * \param len Length of the receive buffer - * - * \return The callback must return the number of bytes received, - * or a non-zero error code. - * If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_READ - * must be returned when the operation would block. - * - * \note The callback may receive fewer bytes than the length of the - * buffer. It must always return the number of bytes actually - * received and written to the buffer. - */ -typedef int mbedtls_ssl_recv_t( void *ctx, - unsigned char *buf, - size_t len ); - -/** - * \brief Callback type: receive data from the network, with timeout - * - * \note That callback must block until data is received, or the - * timeout delay expires, or the operation is interrupted by a - * signal. - * - * \param ctx Context for the receive callback (typically a file descriptor) - * \param buf Buffer to write the received data to - * \param len Length of the receive buffer - * \param timeout Maximum nomber of millisecondes to wait for data - * 0 means no timeout (potentially waiting forever) - * - * \return The callback must return the number of bytes received, - * or a non-zero error code: - * \c MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out, - * \c MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal. - * - * \note The callback may receive fewer bytes than the length of the - * buffer. It must always return the number of bytes actually - * received and written to the buffer. - */ -typedef int mbedtls_ssl_recv_timeout_t( void *ctx, - unsigned char *buf, - size_t len, - uint32_t timeout ); -/** - * \brief Callback type: set a pair of timers/delays to watch - * - * \param ctx Context pointer - * \param int_ms Intermediate delay in milliseconds - * \param fin_ms Final delay in milliseconds - * 0 cancels the current timer. - * - * \note This callback must at least store the necessary information - * for the associated \c mbedtls_ssl_get_timer_t callback to - * return correct information. - * - * \note If using a event-driven style of programming, an event must - * be generated when the final delay is passed. The event must - * cause a call to \c mbedtls_ssl_handshake() with the proper - * SSL context to be scheduled. Care must be taken to ensure - * that at most one such call happens at a time. - * - * \note Only one timer at a time must be running. Calling this - * function while a timer is running must cancel it. Cancelled - * timers must not generate any event. - */ -typedef void mbedtls_ssl_set_timer_t( void * ctx, - uint32_t int_ms, - uint32_t fin_ms ); - -/** - * \brief Callback type: get status of timers/delays - * - * \param ctx Context pointer - * - * \return This callback must return: - * -1 if cancelled (fin_ms == 0), - * 0 if none of the delays have passed, - * 1 if only the intermediate delay has passed, - * 2 if the final delay has passed. - */ -typedef int mbedtls_ssl_get_timer_t( void * ctx ); - -/* Defined below */ -typedef struct mbedtls_ssl_session mbedtls_ssl_session; -typedef struct mbedtls_ssl_context mbedtls_ssl_context; -typedef struct mbedtls_ssl_config mbedtls_ssl_config; - -/* Defined in ssl_internal.h */ -typedef struct mbedtls_ssl_transform mbedtls_ssl_transform; -typedef struct mbedtls_ssl_handshake_params mbedtls_ssl_handshake_params; -typedef struct mbedtls_ssl_sig_hash_set_t mbedtls_ssl_sig_hash_set_t; -#if defined(MBEDTLS_X509_CRT_PARSE_C) -typedef struct mbedtls_ssl_key_cert mbedtls_ssl_key_cert; -#endif -#if defined(MBEDTLS_SSL_PROTO_DTLS) -typedef struct mbedtls_ssl_flight_item mbedtls_ssl_flight_item; -#endif - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * \brief Callback type: start external signature operation. - * - * This callback is called during an SSL handshake to start - * a signature decryption operation using an - * external processor. The parameter \p cert contains - * the public key; it is up to the callback function to - * determine how to access the associated private key. - * - * This function typically sends or enqueues a request, and - * does not wait for the operation to complete. This allows - * the handshake step to be non-blocking. - * - * The parameters \p ssl and \p cert are guaranteed to remain - * valid throughout the handshake. On the other hand, this - * function must save the contents of \p hash if the value - * is needed for later processing, because the \p hash buffer - * is no longer valid after this function returns. - * - * This function may call mbedtls_ssl_set_async_operation_data() - * to store an operation context for later retrieval - * by the resume or cancel callback. - * - * \note For RSA signatures, this function must produce output - * that is consistent with PKCS#1 v1.5 in the same way as - * mbedtls_rsa_pkcs1_sign(). Before the private key operation, - * apply the padding steps described in RFC 8017, section 9.2 - * "EMSA-PKCS1-v1_5" as follows. - * - If \p md_alg is #MBEDTLS_MD_NONE, apply the PKCS#1 v1.5 - * encoding, treating \p hash as the DigestInfo to be - * padded. In other words, apply EMSA-PKCS1-v1_5 starting - * from step 3, with `T = hash` and `tLen = hash_len`. - * - If `md_alg != MBEDTLS_MD_NONE`, apply the PKCS#1 v1.5 - * encoding, treating \p hash as the hash to be encoded and - * padded. In other words, apply EMSA-PKCS1-v1_5 starting - * from step 2, with `digestAlgorithm` obtained by calling - * mbedtls_oid_get_oid_by_md() on \p md_alg. - * - * \note For ECDSA signatures, the output format is the DER encoding - * `Ecdsa-Sig-Value` defined in - * [RFC 4492 section 5.4](https://tools.ietf.org/html/rfc4492#section-5.4). - * - * \param ssl The SSL connection instance. It should not be - * modified other than via - * mbedtls_ssl_set_async_operation_data(). - * \param cert Certificate containing the public key. - * In simple cases, this is one of the pointers passed to - * mbedtls_ssl_conf_own_cert() when configuring the SSL - * connection. However, if other callbacks are used, this - * property may not hold. For example, if an SNI callback - * is registered with mbedtls_ssl_conf_sni(), then - * this callback determines what certificate is used. - * \param md_alg Hash algorithm. - * \param hash Buffer containing the hash. This buffer is - * no longer valid when the function returns. - * \param hash_len Size of the \c hash buffer in bytes. - * - * \return 0 if the operation was started successfully and the SSL - * stack should call the resume callback immediately. - * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation - * was started successfully and the SSL stack should return - * immediately without calling the resume callback yet. - * \return #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external - * processor does not support this key. The SSL stack will - * use the private key object instead. - * \return Any other error indicates a fatal failure and is - * propagated up the call chain. The callback should - * use \c MBEDTLS_ERR_PK_xxx error codes, and must not - * use \c MBEDTLS_ERR_SSL_xxx error codes except as - * directed in the documentation of this callback. - */ -typedef int mbedtls_ssl_async_sign_t( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *cert, - mbedtls_md_type_t md_alg, - const unsigned char *hash, - size_t hash_len ); - -/** - * \brief Callback type: start external decryption operation. - * - * This callback is called during an SSL handshake to start - * an RSA decryption operation using an - * external processor. The parameter \p cert contains - * the public key; it is up to the callback function to - * determine how to access the associated private key. - * - * This function typically sends or enqueues a request, and - * does not wait for the operation to complete. This allows - * the handshake step to be non-blocking. - * - * The parameters \p ssl and \p cert are guaranteed to remain - * valid throughout the handshake. On the other hand, this - * function must save the contents of \p input if the value - * is needed for later processing, because the \p input buffer - * is no longer valid after this function returns. - * - * This function may call mbedtls_ssl_set_async_operation_data() - * to store an operation context for later retrieval - * by the resume or cancel callback. - * - * \warning RSA decryption as used in TLS is subject to a potential - * timing side channel attack first discovered by Bleichenbacher - * in 1998. This attack can be remotely exploitable - * in practice. To avoid this attack, you must ensure that - * if the callback performs an RSA decryption, the time it - * takes to execute and return the result does not depend - * on whether the RSA decryption succeeded or reported - * invalid padding. - * - * \param ssl The SSL connection instance. It should not be - * modified other than via - * mbedtls_ssl_set_async_operation_data(). - * \param cert Certificate containing the public key. - * In simple cases, this is one of the pointers passed to - * mbedtls_ssl_conf_own_cert() when configuring the SSL - * connection. However, if other callbacks are used, this - * property may not hold. For example, if an SNI callback - * is registered with mbedtls_ssl_conf_sni(), then - * this callback determines what certificate is used. - * \param input Buffer containing the input ciphertext. This buffer - * is no longer valid when the function returns. - * \param input_len Size of the \p input buffer in bytes. - * - * \return 0 if the operation was started successfully and the SSL - * stack should call the resume callback immediately. - * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation - * was started successfully and the SSL stack should return - * immediately without calling the resume callback yet. - * \return #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external - * processor does not support this key. The SSL stack will - * use the private key object instead. - * \return Any other error indicates a fatal failure and is - * propagated up the call chain. The callback should - * use \c MBEDTLS_ERR_PK_xxx error codes, and must not - * use \c MBEDTLS_ERR_SSL_xxx error codes except as - * directed in the documentation of this callback. - */ -typedef int mbedtls_ssl_async_decrypt_t( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *cert, - const unsigned char *input, - size_t input_len ); -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -/** - * \brief Callback type: resume external operation. - * - * This callback is called during an SSL handshake to resume - * an external operation started by the - * ::mbedtls_ssl_async_sign_t or - * ::mbedtls_ssl_async_decrypt_t callback. - * - * This function typically checks the status of a pending - * request or causes the request queue to make progress, and - * does not wait for the operation to complete. This allows - * the handshake step to be non-blocking. - * - * This function may call mbedtls_ssl_get_async_operation_data() - * to retrieve an operation context set by the start callback. - * It may call mbedtls_ssl_set_async_operation_data() to modify - * this context. - * - * Note that when this function returns a status other than - * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, it must free any - * resources associated with the operation. - * - * \param ssl The SSL connection instance. It should not be - * modified other than via - * mbedtls_ssl_set_async_operation_data(). - * \param output Buffer containing the output (signature or decrypted - * data) on success. - * \param output_len On success, number of bytes written to \p output. - * \param output_size Size of the \p output buffer in bytes. - * - * \return 0 if output of the operation is available in the - * \p output buffer. - * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation - * is still in progress. Subsequent requests for progress - * on the SSL connection will call the resume callback - * again. - * \return Any other error means that the operation is aborted. - * The SSL handshake is aborted. The callback should - * use \c MBEDTLS_ERR_PK_xxx error codes, and must not - * use \c MBEDTLS_ERR_SSL_xxx error codes except as - * directed in the documentation of this callback. - */ -typedef int mbedtls_ssl_async_resume_t( mbedtls_ssl_context *ssl, - unsigned char *output, - size_t *output_len, - size_t output_size ); - -/** - * \brief Callback type: cancel external operation. - * - * This callback is called if an SSL connection is closed - * while an asynchronous operation is in progress. Note that - * this callback is not called if the - * ::mbedtls_ssl_async_resume_t callback has run and has - * returned a value other than - * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, since in that case - * the asynchronous operation has already completed. - * - * This function may call mbedtls_ssl_get_async_operation_data() - * to retrieve an operation context set by the start callback. - * - * \param ssl The SSL connection instance. It should not be - * modified. - */ -typedef void mbedtls_ssl_async_cancel_t( mbedtls_ssl_context *ssl ); -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) && \ - !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) -#define MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN 48 -#if defined(MBEDTLS_SHA256_C) -#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA256 -#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN 32 -#elif defined(MBEDTLS_SHA512_C) -#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA384 -#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN 48 -#elif defined(MBEDTLS_SHA1_C) -#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA1 -#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN 20 -#else -/* This is already checked in check_config.h, but be sure. */ -#error "Bad configuration - need SHA-1, SHA-256 or SHA-512 enabled to compute digest of peer CRT." -#endif -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED && - !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - -/* - * This structure is used for storing current session data. - */ -struct mbedtls_ssl_session -{ -#if defined(MBEDTLS_HAVE_TIME) - mbedtls_time_t start; /*!< starting time */ -#endif - int ciphersuite; /*!< chosen ciphersuite */ - int compression; /*!< chosen compression */ - size_t id_len; /*!< session id length */ - unsigned char id[32]; /*!< session identifier */ - unsigned char master[48]; /*!< the master secret */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_x509_crt *peer_cert; /*!< peer X.509 cert chain */ -#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - /*! The digest of the peer's end-CRT. This must be kept to detect CRT - * changes during renegotiation, mitigating the triple handshake attack. */ - unsigned char *peer_cert_digest; - size_t peer_cert_digest_len; - mbedtls_md_type_t peer_cert_digest_type; -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - uint32_t verify_result; /*!< verification result */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) - unsigned char *ticket; /*!< RFC 5077 session ticket */ - size_t ticket_len; /*!< session ticket length */ - uint32_t ticket_lifetime; /*!< ticket lifetime hint */ -#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - unsigned char mfl_code; /*!< MaxFragmentLength negotiated by peer */ -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - int trunc_hmac; /*!< flag for truncated hmac activation */ -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - int encrypt_then_mac; /*!< flag for EtM activation */ -#endif -}; - -/** - * SSL/TLS configuration to be shared between mbedtls_ssl_context structures. - */ -struct mbedtls_ssl_config -{ - /* Group items by size (largest first) to minimize padding overhead */ - - /* - * Pointers - */ - - const int *ciphersuite_list[4]; /*!< allowed ciphersuites per version */ - - /** Callback for printing debug output */ - void (*f_dbg)(void *, int, const char *, int, const char *); - void *p_dbg; /*!< context for the debug function */ - - /** Callback for getting (pseudo-)random numbers */ - int (*f_rng)(void *, unsigned char *, size_t); - void *p_rng; /*!< context for the RNG function */ - - /** Callback to retrieve a session from the cache */ - int (*f_get_cache)(void *, mbedtls_ssl_session *); - /** Callback to store a session into the cache */ - int (*f_set_cache)(void *, const mbedtls_ssl_session *); - void *p_cache; /*!< context for cache callbacks */ - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - /** Callback for setting cert according to SNI extension */ - int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *, size_t); - void *p_sni; /*!< context for SNI callback */ -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - /** Callback to customize X.509 certificate chain verification */ - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *); - void *p_vrfy; /*!< context for X.509 verify calllback */ -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - /** Callback to retrieve PSK key from identity */ - int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, size_t); - void *p_psk; /*!< context for PSK callback */ -#endif - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) - /** Callback to create & write a cookie for ClientHello veirifcation */ - int (*f_cookie_write)( void *, unsigned char **, unsigned char *, - const unsigned char *, size_t ); - /** Callback to verify validity of a ClientHello cookie */ - int (*f_cookie_check)( void *, const unsigned char *, size_t, - const unsigned char *, size_t ); - void *p_cookie; /*!< context for the cookie callbacks */ -#endif - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C) - /** Callback to create & write a session ticket */ - int (*f_ticket_write)( void *, const mbedtls_ssl_session *, - unsigned char *, const unsigned char *, size_t *, uint32_t * ); - /** Callback to parse a session ticket into a session structure */ - int (*f_ticket_parse)( void *, mbedtls_ssl_session *, unsigned char *, size_t); - void *p_ticket; /*!< context for the ticket callbacks */ -#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_EXPORT_KEYS) - /** Callback to export key block and master secret */ - int (*f_export_keys)( void *, const unsigned char *, - const unsigned char *, size_t, size_t, size_t ); - void *p_export_keys; /*!< context for key export callback */ -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - const mbedtls_x509_crt_profile *cert_profile; /*!< verification profile */ - mbedtls_ssl_key_cert *key_cert; /*!< own certificate/key pair(s) */ - mbedtls_x509_crt *ca_chain; /*!< trusted CAs */ - mbedtls_x509_crl *ca_crl; /*!< trusted CAs CRLs */ -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - mbedtls_x509_crt_ca_cb_t f_ca_cb; - void *p_ca_cb; -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) -#if defined(MBEDTLS_X509_CRT_PARSE_C) - mbedtls_ssl_async_sign_t *f_async_sign_start; /*!< start asynchronous signature operation */ - mbedtls_ssl_async_decrypt_t *f_async_decrypt_start; /*!< start asynchronous decryption operation */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - mbedtls_ssl_async_resume_t *f_async_resume; /*!< resume asynchronous operation */ - mbedtls_ssl_async_cancel_t *f_async_cancel; /*!< cancel asynchronous operation */ - void *p_async_config_data; /*!< Configuration data set by mbedtls_ssl_conf_async_private_cb(). */ -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - const int *sig_hashes; /*!< allowed signature hashes */ -#endif - -#if defined(MBEDTLS_ECP_C) - const mbedtls_ecp_group_id *curve_list; /*!< allowed curves */ -#endif - -#if defined(MBEDTLS_DHM_C) - mbedtls_mpi dhm_P; /*!< prime modulus for DHM */ - mbedtls_mpi dhm_G; /*!< generator for DHM */ -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_key_handle_t psk_opaque; /*!< PSA key slot holding opaque PSK. - * This field should only be set via - * mbedtls_ssl_conf_psk_opaque(). - * If either no PSK or a raw PSK have - * been configured, this has value \c 0. */ -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - - unsigned char *psk; /*!< The raw pre-shared key. This field should - * only be set via mbedtls_ssl_conf_psk(). - * If either no PSK or an opaque PSK - * have been configured, this has value NULL. */ - size_t psk_len; /*!< The length of the raw pre-shared key. - * This field should only be set via - * mbedtls_ssl_conf_psk(). - * Its value is non-zero if and only if - * \c psk is not \c NULL. */ - - unsigned char *psk_identity; /*!< The PSK identity for PSK negotiation. - * This field should only be set via - * mbedtls_ssl_conf_psk(). - * This is set if and only if either - * \c psk or \c psk_opaque are set. */ - size_t psk_identity_len;/*!< The length of PSK identity. - * This field should only be set via - * mbedtls_ssl_conf_psk(). - * Its value is non-zero if and only if - * \c psk is not \c NULL or \c psk_opaque - * is not \c 0. */ -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#if defined(MBEDTLS_SSL_ALPN) - const char **alpn_list; /*!< ordered list of protocols */ -#endif - - /* - * Numerical settings (int then char) - */ - - uint32_t read_timeout; /*!< timeout for mbedtls_ssl_read (ms) */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - uint32_t hs_timeout_min; /*!< initial value of the handshake - retransmission timeout (ms) */ - uint32_t hs_timeout_max; /*!< maximum value of the handshake - retransmission timeout (ms) */ -#endif - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - int renego_max_records; /*!< grace period for renegotiation */ - unsigned char renego_period[8]; /*!< value of the record counters - that triggers renegotiation */ -#endif - -#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) - unsigned int badmac_limit; /*!< limit of records with a bad MAC */ -#endif - -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) - unsigned int dhm_min_bitlen; /*!< min. bit length of the DHM prime */ -#endif - - unsigned char max_major_ver; /*!< max. major version used */ - unsigned char max_minor_ver; /*!< max. minor version used */ - unsigned char min_major_ver; /*!< min. major version used */ - unsigned char min_minor_ver; /*!< min. minor version used */ - - /* - * Flags (bitfields) - */ - - unsigned int endpoint : 1; /*!< 0: client, 1: server */ - unsigned int transport : 1; /*!< stream (TLS) or datagram (DTLS) */ - unsigned int authmode : 2; /*!< MBEDTLS_SSL_VERIFY_XXX */ - /* needed even with renego disabled for LEGACY_BREAK_HANDSHAKE */ - unsigned int allow_legacy_renegotiation : 2 ; /*!< MBEDTLS_LEGACY_XXX */ -#if defined(MBEDTLS_ARC4_C) - unsigned int arc4_disabled : 1; /*!< blacklist RC4 ciphersuites? */ -#endif -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - unsigned int mfl_code : 3; /*!< desired fragment length */ -#endif -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - unsigned int encrypt_then_mac : 1 ; /*!< negotiate encrypt-then-mac? */ -#endif -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - unsigned int extended_ms : 1; /*!< negotiate extended master secret? */ -#endif -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - unsigned int anti_replay : 1; /*!< detect and prevent replay? */ -#endif -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) - unsigned int cbc_record_splitting : 1; /*!< do cbc record splitting */ -#endif -#if defined(MBEDTLS_SSL_RENEGOTIATION) - unsigned int disable_renegotiation : 1; /*!< disable renegotiation? */ -#endif -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - unsigned int trunc_hmac : 1; /*!< negotiate truncated hmac? */ -#endif -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - unsigned int session_tickets : 1; /*!< use session tickets? */ -#endif -#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C) - unsigned int fallback : 1; /*!< is this a fallback? */ -#endif -#if defined(MBEDTLS_SSL_SRV_C) - unsigned int cert_req_ca_list : 1; /*!< enable sending CA list in - Certificate Request messages? */ -#endif -}; - - -struct mbedtls_ssl_context -{ - const mbedtls_ssl_config *conf; /*!< configuration information */ - - /* - * Miscellaneous - */ - int state; /*!< SSL handshake: current state */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - int renego_status; /*!< Initial, in progress, pending? */ - int renego_records_seen; /*!< Records since renego request, or with DTLS, - number of retransmissions of request if - renego_max_records is < 0 */ -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - - int major_ver; /*!< equal to MBEDTLS_SSL_MAJOR_VERSION_3 */ - int minor_ver; /*!< either 0 (SSL3) or 1 (TLS1.0) */ - -#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) - unsigned badmac_seen; /*!< records with a bad MAC received */ -#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - /** Callback to customize X.509 certificate chain verification */ - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *); - void *p_vrfy; /*!< context for X.509 verify callback */ -#endif - - mbedtls_ssl_send_t *f_send; /*!< Callback for network send */ - mbedtls_ssl_recv_t *f_recv; /*!< Callback for network receive */ - mbedtls_ssl_recv_timeout_t *f_recv_timeout; - /*!< Callback for network receive with timeout */ - - void *p_bio; /*!< context for I/O operations */ - - /* - * Session layer - */ - mbedtls_ssl_session *session_in; /*!< current session data (in) */ - mbedtls_ssl_session *session_out; /*!< current session data (out) */ - mbedtls_ssl_session *session; /*!< negotiated session data */ - mbedtls_ssl_session *session_negotiate; /*!< session data in negotiation */ - - mbedtls_ssl_handshake_params *handshake; /*!< params required only during - the handshake process */ - - /* - * Record layer transformations - */ - mbedtls_ssl_transform *transform_in; /*!< current transform params (in) */ - mbedtls_ssl_transform *transform_out; /*!< current transform params (in) */ - mbedtls_ssl_transform *transform; /*!< negotiated transform params */ - mbedtls_ssl_transform *transform_negotiate; /*!< transform params in negotiation */ - - /* - * Timers - */ - void *p_timer; /*!< context for the timer callbacks */ - - mbedtls_ssl_set_timer_t *f_set_timer; /*!< set timer callback */ - mbedtls_ssl_get_timer_t *f_get_timer; /*!< get timer callback */ - - /* - * Record layer (incoming data) - */ - unsigned char *in_buf; /*!< input buffer */ - unsigned char *in_ctr; /*!< 64-bit incoming message counter - TLS: maintained by us - DTLS: read from peer */ - unsigned char *in_hdr; /*!< start of record header */ - unsigned char *in_len; /*!< two-bytes message length field */ - unsigned char *in_iv; /*!< ivlen-byte IV */ - unsigned char *in_msg; /*!< message contents (in_iv+ivlen) */ - unsigned char *in_offt; /*!< read offset in application data */ - - int in_msgtype; /*!< record header: message type */ - size_t in_msglen; /*!< record header: message length */ - size_t in_left; /*!< amount of data read so far */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - uint16_t in_epoch; /*!< DTLS epoch for incoming records */ - size_t next_record_offset; /*!< offset of the next record in datagram - (equal to in_left if none) */ -#endif /* MBEDTLS_SSL_PROTO_DTLS */ -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - uint64_t in_window_top; /*!< last validated record seq_num */ - uint64_t in_window; /*!< bitmask for replay detection */ -#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ - - size_t in_hslen; /*!< current handshake message length, - including the handshake header */ - int nb_zero; /*!< # of 0-length encrypted messages */ - - int keep_current_message; /*!< drop or reuse current message - on next call to record layer? */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - uint8_t disable_datagram_packing; /*!< Disable packing multiple records - * within a single datagram. */ -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - /* - * Record layer (outgoing data) - */ - unsigned char *out_buf; /*!< output buffer */ - unsigned char *out_ctr; /*!< 64-bit outgoing message counter */ - unsigned char *out_hdr; /*!< start of record header */ - unsigned char *out_len; /*!< two-bytes message length field */ - unsigned char *out_iv; /*!< ivlen-byte IV */ - unsigned char *out_msg; /*!< message contents (out_iv+ivlen) */ - - int out_msgtype; /*!< record header: message type */ - size_t out_msglen; /*!< record header: message length */ - size_t out_left; /*!< amount of data not yet written */ - - unsigned char cur_out_ctr[8]; /*!< Outgoing record sequence number. */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - uint16_t mtu; /*!< path mtu, used to fragment outgoing messages */ -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -#if defined(MBEDTLS_ZLIB_SUPPORT) - unsigned char *compress_buf; /*!< zlib data buffer */ -#endif /* MBEDTLS_ZLIB_SUPPORT */ -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) - signed char split_done; /*!< current record already splitted? */ -#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */ - - /* - * PKI layer - */ - int client_auth; /*!< flag for client auth. */ - - /* - * User settings - */ -#if defined(MBEDTLS_X509_CRT_PARSE_C) - char *hostname; /*!< expected peer CN for verification - (and SNI if available) */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_ALPN) - const char *alpn_chosen; /*!< negotiated protocol */ -#endif /* MBEDTLS_SSL_ALPN */ - - /* - * Information for DTLS hello verify - */ -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) - unsigned char *cli_id; /*!< transport-level ID of the client */ - size_t cli_id_len; /*!< length of cli_id */ -#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ - - /* - * Secure renegotiation - */ - /* needed to know when to send extension on server */ - int secure_renegotiation; /*!< does peer support legacy or - secure renegotiation */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - size_t verify_data_len; /*!< length of verify data stored */ - char own_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */ - char peer_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */ -#endif /* MBEDTLS_SSL_RENEGOTIATION */ -}; - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - -#define MBEDTLS_SSL_CHANNEL_OUTBOUND 0 -#define MBEDTLS_SSL_CHANNEL_INBOUND 1 - -extern int (*mbedtls_ssl_hw_record_init)(mbedtls_ssl_context *ssl, - const unsigned char *key_enc, const unsigned char *key_dec, - size_t keylen, - const unsigned char *iv_enc, const unsigned char *iv_dec, - size_t ivlen, - const unsigned char *mac_enc, const unsigned char *mac_dec, - size_t maclen); -extern int (*mbedtls_ssl_hw_record_activate)(mbedtls_ssl_context *ssl, int direction); -extern int (*mbedtls_ssl_hw_record_reset)(mbedtls_ssl_context *ssl); -extern int (*mbedtls_ssl_hw_record_write)(mbedtls_ssl_context *ssl); -extern int (*mbedtls_ssl_hw_record_read)(mbedtls_ssl_context *ssl); -extern int (*mbedtls_ssl_hw_record_finish)(mbedtls_ssl_context *ssl); -#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ - -/** - * \brief Return the name of the ciphersuite associated with the - * given ID - * - * \param ciphersuite_id SSL ciphersuite ID - * - * \return a string containing the ciphersuite name - */ -const char *mbedtls_ssl_get_ciphersuite_name( const int ciphersuite_id ); - -/** - * \brief Return the ID of the ciphersuite associated with the - * given name - * - * \param ciphersuite_name SSL ciphersuite name - * - * \return the ID with the ciphersuite or 0 if not found - */ -int mbedtls_ssl_get_ciphersuite_id( const char *ciphersuite_name ); - -/** - * \brief Initialize an SSL context - * Just makes the context ready for mbedtls_ssl_setup() or - * mbedtls_ssl_free() - * - * \param ssl SSL context - */ -void mbedtls_ssl_init( mbedtls_ssl_context *ssl ); - -/** - * \brief Set up an SSL context for use - * - * \note No copy of the configuration context is made, it can be - * shared by many mbedtls_ssl_context structures. - * - * \warning The conf structure will be accessed during the session. - * It must not be modified or freed as long as the session - * is active. - * - * \warning This function must be called exactly once per context. - * Calling mbedtls_ssl_setup again is not supported, even - * if no session is active. - * - * \param ssl SSL context - * \param conf SSL configuration to use - * - * \return 0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED if - * memory allocation failed - */ -int mbedtls_ssl_setup( mbedtls_ssl_context *ssl, - const mbedtls_ssl_config *conf ); - -/** - * \brief Reset an already initialized SSL context for re-use - * while retaining application-set variables, function - * pointers and data. - * - * \param ssl SSL context - * \return 0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED, - MBEDTLS_ERR_SSL_HW_ACCEL_FAILED or - * MBEDTLS_ERR_SSL_COMPRESSION_FAILED - */ -int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl ); - -/** - * \brief Set the current endpoint type - * - * \param conf SSL configuration - * \param endpoint must be MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER - */ -void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint ); - -/** - * \brief Set the transport type (TLS or DTLS). - * Default: TLS - * - * \note For DTLS, you must either provide a recv callback that - * doesn't block, or one that handles timeouts, see - * \c mbedtls_ssl_set_bio(). You also need to provide timer - * callbacks with \c mbedtls_ssl_set_timer_cb(). - * - * \param conf SSL configuration - * \param transport transport type: - * MBEDTLS_SSL_TRANSPORT_STREAM for TLS, - * MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS. - */ -void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport ); - -/** - * \brief Set the certificate verification mode - * Default: NONE on server, REQUIRED on client - * - * \param conf SSL configuration - * \param authmode can be: - * - * MBEDTLS_SSL_VERIFY_NONE: peer certificate is not checked - * (default on server) - * (insecure on client) - * - * MBEDTLS_SSL_VERIFY_OPTIONAL: peer certificate is checked, however the - * handshake continues even if verification failed; - * mbedtls_ssl_get_verify_result() can be called after the - * handshake is complete. - * - * MBEDTLS_SSL_VERIFY_REQUIRED: peer *must* present a valid certificate, - * handshake is aborted if verification failed. - * (default on client) - * - * \note On client, MBEDTLS_SSL_VERIFY_REQUIRED is the recommended mode. - * With MBEDTLS_SSL_VERIFY_OPTIONAL, the user needs to call mbedtls_ssl_get_verify_result() at - * the right time(s), which may not be obvious, while REQUIRED always perform - * the verification as soon as possible. For example, REQUIRED was protecting - * against the "triple handshake" attack even before it was found. - */ -void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode ); - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * \brief Set the verification callback (Optional). - * - * If set, the provided verify callback is called for each - * certificate in the peer's CRT chain, including the trusted - * root. For more information, please see the documentation of - * \c mbedtls_x509_crt_verify(). - * - * \note For per context callbacks and contexts, please use - * mbedtls_ssl_set_verify() instead. - * - * \param conf The SSL configuration to use. - * \param f_vrfy The verification callback to use during CRT verification. - * \param p_vrfy The opaque context to be passed to the callback. - */ -void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ); -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -/** - * \brief Set the random number generator callback - * - * \param conf SSL configuration - * \param f_rng RNG function - * \param p_rng RNG parameter - */ -void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ); - -/** - * \brief Set the debug callback - * - * The callback has the following argument: - * void * opaque context for the callback - * int debug level - * const char * file name - * int line number - * const char * message - * - * \param conf SSL configuration - * \param f_dbg debug function - * \param p_dbg debug parameter - */ -void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf, - void (*f_dbg)(void *, int, const char *, int, const char *), - void *p_dbg ); - -/** - * \brief Set the underlying BIO callbacks for write, read and - * read-with-timeout. - * - * \param ssl SSL context - * \param p_bio parameter (context) shared by BIO callbacks - * \param f_send write callback - * \param f_recv read callback - * \param f_recv_timeout blocking read callback with timeout. - * - * \note One of f_recv or f_recv_timeout can be NULL, in which case - * the other is used. If both are non-NULL, f_recv_timeout is - * used and f_recv is ignored (as if it were NULL). - * - * \note The two most common use cases are: - * - non-blocking I/O, f_recv != NULL, f_recv_timeout == NULL - * - blocking I/O, f_recv == NULL, f_recv_timout != NULL - * - * \note For DTLS, you need to provide either a non-NULL - * f_recv_timeout callback, or a f_recv that doesn't block. - * - * \note See the documentations of \c mbedtls_ssl_sent_t, - * \c mbedtls_ssl_recv_t and \c mbedtls_ssl_recv_timeout_t for - * the conventions those callbacks must follow. - * - * \note On some platforms, net_sockets.c provides - * \c mbedtls_net_send(), \c mbedtls_net_recv() and - * \c mbedtls_net_recv_timeout() that are suitable to be used - * here. - */ -void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl, - void *p_bio, - mbedtls_ssl_send_t *f_send, - mbedtls_ssl_recv_t *f_recv, - mbedtls_ssl_recv_timeout_t *f_recv_timeout ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) -/** - * \brief Set the Maximum Tranport Unit (MTU). - * Special value: 0 means unset (no limit). - * This represents the maximum size of a datagram payload - * handled by the transport layer (usually UDP) as determined - * by the network link and stack. In practice, this controls - * the maximum size datagram the DTLS layer will pass to the - * \c f_send() callback set using \c mbedtls_ssl_set_bio(). - * - * \note The limit on datagram size is converted to a limit on - * record payload by subtracting the current overhead of - * encapsulation and encryption/authentication if any. - * - * \note This can be called at any point during the connection, for - * example when a Path Maximum Transfer Unit (PMTU) - * estimate becomes available from other sources, - * such as lower (or higher) protocol layers. - * - * \note This setting only controls the size of the packets we send, - * and does not restrict the size of the datagrams we're - * willing to receive. Client-side, you can request the - * server to use smaller records with \c - * mbedtls_ssl_conf_max_frag_len(). - * - * \note If both a MTU and a maximum fragment length have been - * configured (or negotiated with the peer), the resulting - * lower limit on record payload (see first note) is used. - * - * \note This can only be used to decrease the maximum size - * of datagrams (hence records, see first note) sent. It - * cannot be used to increase the maximum size of records over - * the limit set by #MBEDTLS_SSL_OUT_CONTENT_LEN. - * - * \note Values lower than the current record layer expansion will - * result in an error when trying to send data. - * - * \note Using record compression together with a non-zero MTU value - * will result in an error when trying to send data. - * - * \param ssl SSL context - * \param mtu Value of the path MTU in bytes - */ -void mbedtls_ssl_set_mtu( mbedtls_ssl_context *ssl, uint16_t mtu ); -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * \brief Set a connection-specific verification callback (optional). - * - * If set, the provided verify callback is called for each - * certificate in the peer's CRT chain, including the trusted - * root. For more information, please see the documentation of - * \c mbedtls_x509_crt_verify(). - * - * \note This call is analogous to mbedtls_ssl_conf_verify() but - * binds the verification callback and context to an SSL context - * as opposed to an SSL configuration. - * If mbedtls_ssl_conf_verify() and mbedtls_ssl_set_verify() - * are both used, mbedtls_ssl_set_verify() takes precedence. - * - * \param ssl The SSL context to use. - * \param f_vrfy The verification callback to use during CRT verification. - * \param p_vrfy The opaque context to be passed to the callback. - */ -void mbedtls_ssl_set_verify( mbedtls_ssl_context *ssl, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ); -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -/** - * \brief Set the timeout period for mbedtls_ssl_read() - * (Default: no timeout.) - * - * \param conf SSL configuration context - * \param timeout Timeout value in milliseconds. - * Use 0 for no timeout (default). - * - * \note With blocking I/O, this will only work if a non-NULL - * \c f_recv_timeout was set with \c mbedtls_ssl_set_bio(). - * With non-blocking I/O, this will only work if timer - * callbacks were set with \c mbedtls_ssl_set_timer_cb(). - * - * \note With non-blocking I/O, you may also skip this function - * altogether and handle timeouts at the application layer. - */ -void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout ); - -/** - * \brief Set the timer callbacks (Mandatory for DTLS.) - * - * \param ssl SSL context - * \param p_timer parameter (context) shared by timer callbacks - * \param f_set_timer set timer callback - * \param f_get_timer get timer callback. Must return: - * - * \note See the documentation of \c mbedtls_ssl_set_timer_t and - * \c mbedtls_ssl_get_timer_t for the conventions this pair of - * callbacks must follow. - * - * \note On some platforms, timing.c provides - * \c mbedtls_timing_set_delay() and - * \c mbedtls_timing_get_delay() that are suitable for using - * here, except if using an event-driven style. - * - * \note See also the "DTLS tutorial" article in our knowledge base. - * https://tls.mbed.org/kb/how-to/dtls-tutorial - */ -void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl, - void *p_timer, - mbedtls_ssl_set_timer_t *f_set_timer, - mbedtls_ssl_get_timer_t *f_get_timer ); - -/** - * \brief Callback type: generate and write session ticket - * - * \note This describes what a callback implementation should do. - * This callback should generate an encrypted and - * authenticated ticket for the session and write it to the - * output buffer. Here, ticket means the opaque ticket part - * of the NewSessionTicket structure of RFC 5077. - * - * \param p_ticket Context for the callback - * \param session SSL session to be written in the ticket - * \param start Start of the output buffer - * \param end End of the output buffer - * \param tlen On exit, holds the length written - * \param lifetime On exit, holds the lifetime of the ticket in seconds - * - * \return 0 if successful, or - * a specific MBEDTLS_ERR_XXX code. - */ -typedef int mbedtls_ssl_ticket_write_t( void *p_ticket, - const mbedtls_ssl_session *session, - unsigned char *start, - const unsigned char *end, - size_t *tlen, - uint32_t *lifetime ); - -#if defined(MBEDTLS_SSL_EXPORT_KEYS) -/** - * \brief Callback type: Export key block and master secret - * - * \note This is required for certain uses of TLS, e.g. EAP-TLS - * (RFC 5216) and Thread. The key pointers are ephemeral and - * therefore must not be stored. The master secret and keys - * should not be used directly except as an input to a key - * derivation function. - * - * \param p_expkey Context for the callback - * \param ms Pointer to master secret (fixed length: 48 bytes) - * \param kb Pointer to key block, see RFC 5246 section 6.3 - * (variable length: 2 * maclen + 2 * keylen + 2 * ivlen). - * \param maclen MAC length - * \param keylen Key length - * \param ivlen IV length - * - * \return 0 if successful, or - * a specific MBEDTLS_ERR_XXX code. - */ -typedef int mbedtls_ssl_export_keys_t( void *p_expkey, - const unsigned char *ms, - const unsigned char *kb, - size_t maclen, - size_t keylen, - size_t ivlen ); -#endif /* MBEDTLS_SSL_EXPORT_KEYS */ - -/** - * \brief Callback type: parse and load session ticket - * - * \note This describes what a callback implementation should do. - * This callback should parse a session ticket as generated - * by the corresponding mbedtls_ssl_ticket_write_t function, - * and, if the ticket is authentic and valid, load the - * session. - * - * \note The implementation is allowed to modify the first len - * bytes of the input buffer, eg to use it as a temporary - * area for the decrypted ticket contents. - * - * \param p_ticket Context for the callback - * \param session SSL session to be loaded - * \param buf Start of the buffer containing the ticket - * \param len Length of the ticket. - * - * \return 0 if successful, or - * MBEDTLS_ERR_SSL_INVALID_MAC if not authentic, or - * MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED if expired, or - * any other non-zero code for other failures. - */ -typedef int mbedtls_ssl_ticket_parse_t( void *p_ticket, - mbedtls_ssl_session *session, - unsigned char *buf, - size_t len ); - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C) -/** - * \brief Configure SSL session ticket callbacks (server only). - * (Default: none.) - * - * \note On server, session tickets are enabled by providing - * non-NULL callbacks. - * - * \note On client, use \c mbedtls_ssl_conf_session_tickets(). - * - * \param conf SSL configuration context - * \param f_ticket_write Callback for writing a ticket - * \param f_ticket_parse Callback for parsing a ticket - * \param p_ticket Context shared by the two callbacks - */ -void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_ticket_write_t *f_ticket_write, - mbedtls_ssl_ticket_parse_t *f_ticket_parse, - void *p_ticket ); -#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_EXPORT_KEYS) -/** - * \brief Configure key export callback. - * (Default: none.) - * - * \note See \c mbedtls_ssl_export_keys_t. - * - * \param conf SSL configuration context - * \param f_export_keys Callback for exporting keys - * \param p_export_keys Context for the callback - */ -void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_export_keys_t *f_export_keys, - void *p_export_keys ); -#endif /* MBEDTLS_SSL_EXPORT_KEYS */ - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) -/** - * \brief Configure asynchronous private key operation callbacks. - * - * \param conf SSL configuration context - * \param f_async_sign Callback to start a signature operation. See - * the description of ::mbedtls_ssl_async_sign_t - * for more information. This may be \c NULL if the - * external processor does not support any signature - * operation; in this case the private key object - * associated with the certificate will be used. - * \param f_async_decrypt Callback to start a decryption operation. See - * the description of ::mbedtls_ssl_async_decrypt_t - * for more information. This may be \c NULL if the - * external processor does not support any decryption - * operation; in this case the private key object - * associated with the certificate will be used. - * \param f_async_resume Callback to resume an asynchronous operation. See - * the description of ::mbedtls_ssl_async_resume_t - * for more information. This may not be \c NULL unless - * \p f_async_sign and \p f_async_decrypt are both - * \c NULL. - * \param f_async_cancel Callback to cancel an asynchronous operation. See - * the description of ::mbedtls_ssl_async_cancel_t - * for more information. This may be \c NULL if - * no cleanup is needed. - * \param config_data A pointer to configuration data which can be - * retrieved with - * mbedtls_ssl_conf_get_async_config_data(). The - * library stores this value without dereferencing it. - */ -void mbedtls_ssl_conf_async_private_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_async_sign_t *f_async_sign, - mbedtls_ssl_async_decrypt_t *f_async_decrypt, - mbedtls_ssl_async_resume_t *f_async_resume, - mbedtls_ssl_async_cancel_t *f_async_cancel, - void *config_data ); - -/** - * \brief Retrieve the configuration data set by - * mbedtls_ssl_conf_async_private_cb(). - * - * \param conf SSL configuration context - * \return The configuration data set by - * mbedtls_ssl_conf_async_private_cb(). - */ -void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config *conf ); - -/** - * \brief Retrieve the asynchronous operation user context. - * - * \note This function may only be called while a handshake - * is in progress. - * - * \param ssl The SSL context to access. - * - * \return The asynchronous operation user context that was last - * set during the current handshake. If - * mbedtls_ssl_set_async_operation_data() has not yet been - * called during the current handshake, this function returns - * \c NULL. - */ -void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context *ssl ); - -/** - * \brief Retrieve the asynchronous operation user context. - * - * \note This function may only be called while a handshake - * is in progress. - * - * \param ssl The SSL context to access. - * \param ctx The new value of the asynchronous operation user context. - * Call mbedtls_ssl_get_async_operation_data() later during the - * same handshake to retrieve this value. - */ -void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *ssl, - void *ctx ); -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - -/** - * \brief Callback type: generate a cookie - * - * \param ctx Context for the callback - * \param p Buffer to write to, - * must be updated to point right after the cookie - * \param end Pointer to one past the end of the output buffer - * \param info Client ID info that was passed to - * \c mbedtls_ssl_set_client_transport_id() - * \param ilen Length of info in bytes - * - * \return The callback must return 0 on success, - * or a negative error code. - */ -typedef int mbedtls_ssl_cookie_write_t( void *ctx, - unsigned char **p, unsigned char *end, - const unsigned char *info, size_t ilen ); - -/** - * \brief Callback type: verify a cookie - * - * \param ctx Context for the callback - * \param cookie Cookie to verify - * \param clen Length of cookie - * \param info Client ID info that was passed to - * \c mbedtls_ssl_set_client_transport_id() - * \param ilen Length of info in bytes - * - * \return The callback must return 0 if cookie is valid, - * or a negative error code. - */ -typedef int mbedtls_ssl_cookie_check_t( void *ctx, - const unsigned char *cookie, size_t clen, - const unsigned char *info, size_t ilen ); - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) -/** - * \brief Register callbacks for DTLS cookies - * (Server only. DTLS only.) - * - * Default: dummy callbacks that fail, in order to force you to - * register working callbacks (and initialize their context). - * - * To disable HelloVerifyRequest, register NULL callbacks. - * - * \warning Disabling hello verification allows your server to be used - * for amplification in DoS attacks against other hosts. - * Only disable if you known this can't happen in your - * particular environment. - * - * \note See comments on \c mbedtls_ssl_handshake() about handling - * the MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED that is expected - * on the first handshake attempt when this is enabled. - * - * \note This is also necessary to handle client reconnection from - * the same port as described in RFC 6347 section 4.2.8 (only - * the variant with cookies is supported currently). See - * comments on \c mbedtls_ssl_read() for details. - * - * \param conf SSL configuration - * \param f_cookie_write Cookie write callback - * \param f_cookie_check Cookie check callback - * \param p_cookie Context for both callbacks - */ -void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf, - mbedtls_ssl_cookie_write_t *f_cookie_write, - mbedtls_ssl_cookie_check_t *f_cookie_check, - void *p_cookie ); - -/** - * \brief Set client's transport-level identification info. - * (Server only. DTLS only.) - * - * This is usually the IP address (and port), but could be - * anything identify the client depending on the underlying - * network stack. Used for HelloVerifyRequest with DTLS. - * This is *not* used to route the actual packets. - * - * \param ssl SSL context - * \param info Transport-level info identifying the client (eg IP + port) - * \param ilen Length of info in bytes - * - * \note An internal copy is made, so the info buffer can be reused. - * - * \return 0 on success, - * MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used on client, - * MBEDTLS_ERR_SSL_ALLOC_FAILED if out of memory. - */ -int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl, - const unsigned char *info, - size_t ilen ); - -#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) -/** - * \brief Enable or disable anti-replay protection for DTLS. - * (DTLS only, no effect on TLS.) - * Default: enabled. - * - * \param conf SSL configuration - * \param mode MBEDTLS_SSL_ANTI_REPLAY_ENABLED or MBEDTLS_SSL_ANTI_REPLAY_DISABLED. - * - * \warning Disabling this is a security risk unless the application - * protocol handles duplicated packets in a safe way. You - * should not disable this without careful consideration. - * However, if your application already detects duplicated - * packets and needs information about them to adjust its - * transmission strategy, then you'll want to disable this. - */ -void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode ); -#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ - -#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) -/** - * \brief Set a limit on the number of records with a bad MAC - * before terminating the connection. - * (DTLS only, no effect on TLS.) - * Default: 0 (disabled). - * - * \param conf SSL configuration - * \param limit Limit, or 0 to disable. - * - * \note If the limit is N, then the connection is terminated when - * the Nth non-authentic record is seen. - * - * \note Records with an invalid header are not counted, only the - * ones going through the authentication-decryption phase. - * - * \note This is a security trade-off related to the fact that it's - * often relatively easy for an active attacker ot inject UDP - * datagrams. On one hand, setting a low limit here makes it - * easier for such an attacker to forcibly terminated a - * connection. On the other hand, a high limit or no limit - * might make us waste resources checking authentication on - * many bogus packets. - */ -void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit ); -#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - -/** - * \brief Allow or disallow packing of multiple handshake records - * within a single datagram. - * - * \param ssl The SSL context to configure. - * \param allow_packing This determines whether datagram packing may - * be used or not. A value of \c 0 means that every - * record will be sent in a separate datagram; a - * value of \c 1 means that, if space permits, - * multiple handshake messages (including CCS) belonging to - * a single flight may be packed within a single datagram. - * - * \note This is enabled by default and should only be disabled - * for test purposes, or if datagram packing causes - * interoperability issues with peers that don't support it. - * - * \note Allowing datagram packing reduces the network load since - * there's less overhead if multiple messages share the same - * datagram. Also, it increases the handshake efficiency - * since messages belonging to a single datagram will not - * be reordered in transit, and so future message buffering - * or flight retransmission (if no buffering is used) as - * means to deal with reordering are needed less frequently. - * - * \note Application records are not affected by this option and - * are currently always sent in separate datagrams. - * - */ -void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *ssl, - unsigned allow_packing ); - -/** - * \brief Set retransmit timeout values for the DTLS handshake. - * (DTLS only, no effect on TLS.) - * - * \param conf SSL configuration - * \param min Initial timeout value in milliseconds. - * Default: 1000 (1 second). - * \param max Maximum timeout value in milliseconds. - * Default: 60000 (60 seconds). - * - * \note Default values are from RFC 6347 section 4.2.4.1. - * - * \note The 'min' value should typically be slightly above the - * expected round-trip time to your peer, plus whatever time - * it takes for the peer to process the message. For example, - * if your RTT is about 600ms and you peer needs up to 1s to - * do the cryptographic operations in the handshake, then you - * should set 'min' slightly above 1600. Lower values of 'min' - * might cause spurious resends which waste network resources, - * while larger value of 'min' will increase overall latency - * on unreliable network links. - * - * \note The more unreliable your network connection is, the larger - * your max / min ratio needs to be in order to achieve - * reliable handshakes. - * - * \note Messages are retransmitted up to log2(ceil(max/min)) times. - * For example, if min = 1s and max = 5s, the retransmit plan - * goes: send ... 1s -> resend ... 2s -> resend ... 4s -> - * resend ... 5s -> give up and return a timeout error. - */ -void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf, uint32_t min, uint32_t max ); -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -#if defined(MBEDTLS_SSL_SRV_C) -/** - * \brief Set the session cache callbacks (server-side only) - * If not set, no session resuming is done (except if session - * tickets are enabled too). - * - * The session cache has the responsibility to check for stale - * entries based on timeout. See RFC 5246 for recommendations. - * - * Warning: session.peer_cert is cleared by the SSL/TLS layer on - * connection shutdown, so do not cache the pointer! Either set - * it to NULL or make a full copy of the certificate. - * - * The get callback is called once during the initial handshake - * to enable session resuming. The get function has the - * following parameters: (void *parameter, mbedtls_ssl_session *session) - * If a valid entry is found, it should fill the master of - * the session object with the cached values and return 0, - * return 1 otherwise. Optionally peer_cert can be set as well - * if it is properly present in cache entry. - * - * The set callback is called once during the initial handshake - * to enable session resuming after the entire handshake has - * been finished. The set function has the following parameters: - * (void *parameter, const mbedtls_ssl_session *session). The function - * should create a cache entry for future retrieval based on - * the data in the session structure and should keep in mind - * that the mbedtls_ssl_session object presented (and all its referenced - * data) is cleared by the SSL/TLS layer when the connection is - * terminated. It is recommended to add metadata to determine if - * an entry is still valid in the future. Return 0 if - * successfully cached, return 1 otherwise. - * - * \param conf SSL configuration - * \param p_cache parmater (context) for both callbacks - * \param f_get_cache session get callback - * \param f_set_cache session set callback - */ -void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf, - void *p_cache, - int (*f_get_cache)(void *, mbedtls_ssl_session *), - int (*f_set_cache)(void *, const mbedtls_ssl_session *) ); -#endif /* MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_CLI_C) -/** - * \brief Request resumption of session (client-side only) - * Session data is copied from presented session structure. - * - * \param ssl SSL context - * \param session session context - * - * \return 0 if successful, - * MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed, - * MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used server-side or - * arguments are otherwise invalid - * - * \sa mbedtls_ssl_get_session() - */ -int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session ); -#endif /* MBEDTLS_SSL_CLI_C */ - -/** - * \brief Set the list of allowed ciphersuites and the preference - * order. First in the list has the highest preference. - * (Overrides all version-specific lists) - * - * The ciphersuites array is not copied, and must remain - * valid for the lifetime of the ssl_config. - * - * Note: The server uses its own preferences - * over the preference of the client unless - * MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE is defined! - * - * \param conf SSL configuration - * \param ciphersuites 0-terminated list of allowed ciphersuites - */ -void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf, - const int *ciphersuites ); - -/** - * \brief Set the list of allowed ciphersuites and the - * preference order for a specific version of the protocol. - * (Only useful on the server side) - * - * The ciphersuites array is not copied, and must remain - * valid for the lifetime of the ssl_config. - * - * \param conf SSL configuration - * \param ciphersuites 0-terminated list of allowed ciphersuites - * \param major Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 - * supported) - * \param minor Minor version number (MBEDTLS_SSL_MINOR_VERSION_0, - * MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2, - * MBEDTLS_SSL_MINOR_VERSION_3 supported) - * - * \note With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 - * and MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2 - */ -void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf, - const int *ciphersuites, - int major, int minor ); - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * \brief Set the X.509 security profile used for verification - * - * \note The restrictions are enforced for all certificates in the - * chain. However, signatures in the handshake are not covered - * by this setting but by \b mbedtls_ssl_conf_sig_hashes(). - * - * \param conf SSL configuration - * \param profile Profile to use - */ -void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf, - const mbedtls_x509_crt_profile *profile ); - -/** - * \brief Set the data required to verify peer certificate - * - * \note See \c mbedtls_x509_crt_verify() for notes regarding the - * parameters ca_chain (maps to trust_ca for that function) - * and ca_crl. - * - * \param conf SSL configuration - * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs) - * \param ca_crl trusted CA CRLs - */ -void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf, - mbedtls_x509_crt *ca_chain, - mbedtls_x509_crl *ca_crl ); - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) -/** - * \brief Set the trusted certificate callback. - * - * This API allows to register the set of trusted certificates - * through a callback, instead of a linked list as configured - * by mbedtls_ssl_conf_ca_chain(). - * - * This is useful for example in contexts where a large number - * of CAs are used, and the inefficiency of maintaining them - * in a linked list cannot be tolerated. It is also useful when - * the set of trusted CAs needs to be modified frequently. - * - * See the documentation of `mbedtls_x509_crt_ca_cb_t` for - * more information. - * - * \param conf The SSL configuration to register the callback with. - * \param f_ca_cb The trusted certificate callback to use when verifying - * certificate chains. - * \param p_ca_cb The context to be passed to \p f_ca_cb (for example, - * a reference to a trusted CA database). - * - * \note This API is incompatible with mbedtls_ssl_conf_ca_chain(): - * Any call to this function overwrites the values set through - * earlier calls to mbedtls_ssl_conf_ca_chain() or - * mbedtls_ssl_conf_ca_cb(). - * - * \note This API is incompatible with CA indication in - * CertificateRequest messages: A server-side SSL context which - * is bound to an SSL configuration that uses a CA callback - * configured via mbedtls_ssl_conf_ca_cb(), and which requires - * client authentication, will send an empty CA list in the - * corresponding CertificateRequest message. - * - * \note This API is incompatible with mbedtls_ssl_set_hs_ca_chain(): - * If an SSL context is bound to an SSL configuration which uses - * CA callbacks configured via mbedtls_ssl_conf_ca_cb(), then - * calls to mbedtls_ssl_set_hs_ca_chain() have no effect. - * - * \note The use of this API disables the use of restartable ECC - * during X.509 CRT signature verification (but doesn't affect - * other uses). - * - * \warning This API is incompatible with the use of CRLs. Any call to - * mbedtls_ssl_conf_ca_cb() unsets CRLs configured through - * earlier calls to mbedtls_ssl_conf_ca_chain(). - * - * \warning In multi-threaded environments, the callback \p f_ca_cb - * must be thread-safe, and it is the user's responsibility - * to guarantee this (for example through a mutex - * contained in the callback context pointed to by \p p_ca_cb). - */ -void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *conf, - mbedtls_x509_crt_ca_cb_t f_ca_cb, - void *p_ca_cb ); -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ - -/** - * \brief Set own certificate chain and private key - * - * \note own_cert should contain in order from the bottom up your - * certificate chain. The top certificate (self-signed) - * can be omitted. - * - * \note On server, this function can be called multiple times to - * provision more than one cert/key pair (eg one ECDSA, one - * RSA with SHA-256, one RSA with SHA-1). An adequate - * certificate will be selected according to the client's - * advertised capabilities. In case multiple certificates are - * adequate, preference is given to the one set by the first - * call to this function, then second, etc. - * - * \note On client, only the first call has any effect. That is, - * only one client certificate can be provisioned. The - * server's preferences in its CertficateRequest message will - * be ignored and our only cert will be sent regardless of - * whether it matches those preferences - the server can then - * decide what it wants to do with it. - * - * \note The provided \p pk_key needs to match the public key in the - * first certificate in \p own_cert, or all handshakes using - * that certificate will fail. It is your responsibility - * to ensure that; this function will not perform any check. - * You may use mbedtls_pk_check_pair() in order to perform - * this check yourself, but be aware that this function can - * be computationally expensive on some key types. - * - * \param conf SSL configuration - * \param own_cert own public certificate chain - * \param pk_key own private key - * - * \return 0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED - */ -int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf, - mbedtls_x509_crt *own_cert, - mbedtls_pk_context *pk_key ); -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -/** - * \brief Configure a pre-shared key (PSK) and identity - * to be used in PSK-based ciphersuites. - * - * \note This is mainly useful for clients. Servers will usually - * want to use \c mbedtls_ssl_conf_psk_cb() instead. - * - * \warning Currently, clients can only register a single pre-shared key. - * Calling this function or mbedtls_ssl_conf_psk_opaque() more - * than once will overwrite values configured in previous calls. - * Support for setting multiple PSKs on clients and selecting - * one based on the identity hint is not a planned feature, - * but feedback is welcomed. - * - * \param conf The SSL configuration to register the PSK with. - * \param psk The pointer to the pre-shared key to use. - * \param psk_len The length of the pre-shared key in bytes. - * \param psk_identity The pointer to the pre-shared key identity. - * \param psk_identity_len The length of the pre-shared key identity - * in bytes. - * - * \note The PSK and its identity are copied internally and - * hence need not be preserved by the caller for the lifetime - * of the SSL configuration. - * - * \return \c 0 if successful. - * \return An \c MBEDTLS_ERR_SSL_XXX error code on failure. - */ -int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf, - const unsigned char *psk, size_t psk_len, - const unsigned char *psk_identity, size_t psk_identity_len ); - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -/** - * \brief Configure an opaque pre-shared key (PSK) and identity - * to be used in PSK-based ciphersuites. - * - * \note This is mainly useful for clients. Servers will usually - * want to use \c mbedtls_ssl_conf_psk_cb() instead. - * - * \warning Currently, clients can only register a single pre-shared key. - * Calling this function or mbedtls_ssl_conf_psk() more than - * once will overwrite values configured in previous calls. - * Support for setting multiple PSKs on clients and selecting - * one based on the identity hint is not a planned feature, - * but feedback is welcomed. - * - * \param conf The SSL configuration to register the PSK with. - * \param psk The identifier of the key slot holding the PSK. - * Until \p conf is destroyed or this function is successfully - * called again, the key slot \p psk must be populated with a - * key of type PSA_ALG_CATEGORY_KEY_DERIVATION whose policy - * allows its use for the key derivation algorithm applied - * in the handshake. - * \param psk_identity The pointer to the pre-shared key identity. - * \param psk_identity_len The length of the pre-shared key identity - * in bytes. - * - * \note The PSK identity hint is copied internally and hence need - * not be preserved by the caller for the lifetime of the - * SSL configuration. - * - * \return \c 0 if successful. - * \return An \c MBEDTLS_ERR_SSL_XXX error code on failure. - */ -int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf, - psa_key_handle_t psk, - const unsigned char *psk_identity, - size_t psk_identity_len ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -/** - * \brief Set the pre-shared Key (PSK) for the current handshake. - * - * \note This should only be called inside the PSK callback, - * i.e. the function passed to \c mbedtls_ssl_conf_psk_cb(). - * - * \param ssl The SSL context to configure a PSK for. - * \param psk The pointer to the pre-shared key. - * \param psk_len The length of the pre-shared key in bytes. - * - * \return \c 0 if successful. - * \return An \c MBEDTLS_ERR_SSL_XXX error code on failure. - */ -int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl, - const unsigned char *psk, size_t psk_len ); - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -/** - * \brief Set an opaque pre-shared Key (PSK) for the current handshake. - * - * \note This should only be called inside the PSK callback, - * i.e. the function passed to \c mbedtls_ssl_conf_psk_cb(). - * - * \param ssl The SSL context to configure a PSK for. - * \param psk The identifier of the key slot holding the PSK. - * For the duration of the current handshake, the key slot - * must be populated with a key of type - * PSA_ALG_CATEGORY_KEY_DERIVATION whose policy allows its - * use for the key derivation algorithm - * applied in the handshake. - * - * \return \c 0 if successful. - * \return An \c MBEDTLS_ERR_SSL_XXX error code on failure. - */ -int mbedtls_ssl_set_hs_psk_opaque( mbedtls_ssl_context *ssl, - psa_key_handle_t psk ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -/** - * \brief Set the PSK callback (server-side only). - * - * If set, the PSK callback is called for each - * handshake where a PSK-based ciphersuite was negotiated. - * The caller provides the identity received and wants to - * receive the actual PSK data and length. - * - * The callback has the following parameters: - * - \c void*: The opaque pointer \p p_psk. - * - \c mbedtls_ssl_context*: The SSL context to which - * the operation applies. - * - \c const unsigned char*: The PSK identity - * selected by the client. - * - \c size_t: The length of the PSK identity - * selected by the client. - * - * If a valid PSK identity is found, the callback should use - * \c mbedtls_ssl_set_hs_psk() or - * \c mbedtls_ssl_set_hs_psk_opaque() - * on the SSL context to set the correct PSK and return \c 0. - * Any other return value will result in a denied PSK identity. - * - * \note If you set a PSK callback using this function, then you - * don't need to set a PSK key and identity using - * \c mbedtls_ssl_conf_psk(). - * - * \param conf The SSL configuration to register the callback with. - * \param f_psk The callback for selecting and setting the PSK based - * in the PSK identity chosen by the client. - * \param p_psk A pointer to an opaque structure to be passed to - * the callback, for example a PSK store. - */ -void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf, - int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, - size_t), - void *p_psk ); -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) - -#if !defined(MBEDTLS_DEPRECATED_REMOVED) - -#if defined(MBEDTLS_DEPRECATED_WARNING) -#define MBEDTLS_DEPRECATED __attribute__((deprecated)) -#else -#define MBEDTLS_DEPRECATED -#endif - -/** - * \brief Set the Diffie-Hellman public P and G values, - * read as hexadecimal strings (server-side only) - * (Default values: MBEDTLS_DHM_RFC3526_MODP_2048_[PG]) - * - * \param conf SSL configuration - * \param dhm_P Diffie-Hellman-Merkle modulus - * \param dhm_G Diffie-Hellman-Merkle generator - * - * \deprecated Superseded by \c mbedtls_ssl_conf_dh_param_bin. - * - * \return 0 if successful - */ -MBEDTLS_DEPRECATED int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, - const char *dhm_P, - const char *dhm_G ); - -#endif /* MBEDTLS_DEPRECATED_REMOVED */ - -/** - * \brief Set the Diffie-Hellman public P and G values - * from big-endian binary presentations. - * (Default values: MBEDTLS_DHM_RFC3526_MODP_2048_[PG]_BIN) - * - * \param conf SSL configuration - * \param dhm_P Diffie-Hellman-Merkle modulus in big-endian binary form - * \param P_len Length of DHM modulus - * \param dhm_G Diffie-Hellman-Merkle generator in big-endian binary form - * \param G_len Length of DHM generator - * - * \return 0 if successful - */ -int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf, - const unsigned char *dhm_P, size_t P_len, - const unsigned char *dhm_G, size_t G_len ); - -/** - * \brief Set the Diffie-Hellman public P and G values, - * read from existing context (server-side only) - * - * \param conf SSL configuration - * \param dhm_ctx Diffie-Hellman-Merkle context - * - * \return 0 if successful - */ -int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx ); -#endif /* MBEDTLS_DHM_C && defined(MBEDTLS_SSL_SRV_C) */ - -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) -/** - * \brief Set the minimum length for Diffie-Hellman parameters. - * (Client-side only.) - * (Default: 1024 bits.) - * - * \param conf SSL configuration - * \param bitlen Minimum bit length of the DHM prime - */ -void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf, - unsigned int bitlen ); -#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */ - -#if defined(MBEDTLS_ECP_C) -/** - * \brief Set the allowed curves in order of preference. - * (Default: all defined curves.) - * - * On server: this only affects selection of the ECDHE curve; - * the curves used for ECDH and ECDSA are determined by the - * list of available certificates instead. - * - * On client: this affects the list of curves offered for any - * use. The server can override our preference order. - * - * Both sides: limits the set of curves accepted for use in - * ECDHE and in the peer's end-entity certificate. - * - * \note This has no influence on which curves are allowed inside the - * certificate chains, see \c mbedtls_ssl_conf_cert_profile() - * for that. For the end-entity certificate however, the key - * will be accepted only if it is allowed both by this list - * and by the cert profile. - * - * \note This list should be ordered by decreasing preference - * (preferred curve first). - * - * \param conf SSL configuration - * \param curves Ordered list of allowed curves, - * terminated by MBEDTLS_ECP_DP_NONE. - */ -void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf, - const mbedtls_ecp_group_id *curves ); -#endif /* MBEDTLS_ECP_C */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -/** - * \brief Set the allowed hashes for signatures during the handshake. - * (Default: all available hashes except MD5.) - * - * \note This only affects which hashes are offered and can be used - * for signatures during the handshake. Hashes for message - * authentication and the TLS PRF are controlled by the - * ciphersuite, see \c mbedtls_ssl_conf_ciphersuites(). Hashes - * used for certificate signature are controlled by the - * verification profile, see \c mbedtls_ssl_conf_cert_profile(). - * - * \note This list should be ordered by decreasing preference - * (preferred hash first). - * - * \param conf SSL configuration - * \param hashes Ordered list of allowed signature hashes, - * terminated by \c MBEDTLS_MD_NONE. - */ -void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf, - const int *hashes ); -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * \brief Set or reset the hostname to check against the received - * server certificate. It sets the ServerName TLS extension, - * too, if that extension is enabled. (client-side only) - * - * \param ssl SSL context - * \param hostname the server hostname, may be NULL to clear hostname - - * \note Maximum hostname length MBEDTLS_SSL_MAX_HOST_NAME_LEN. - * - * \return 0 if successful, MBEDTLS_ERR_SSL_ALLOC_FAILED on - * allocation failure, MBEDTLS_ERR_SSL_BAD_INPUT_DATA on - * too long input hostname. - * - * Hostname set to the one provided on success (cleared - * when NULL). On allocation failure hostname is cleared. - * On too long input failure, old hostname is unchanged. - */ -int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname ); -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) -/** - * \brief Set own certificate and key for the current handshake - * - * \note Same as \c mbedtls_ssl_conf_own_cert() but for use within - * the SNI callback. - * - * \param ssl SSL context - * \param own_cert own public certificate chain - * \param pk_key own private key - * - * \return 0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED - */ -int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *own_cert, - mbedtls_pk_context *pk_key ); - -/** - * \brief Set the data required to verify peer certificate for the - * current handshake - * - * \note Same as \c mbedtls_ssl_conf_ca_chain() but for use within - * the SNI callback. - * - * \param ssl SSL context - * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs) - * \param ca_crl trusted CA CRLs - */ -void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *ca_chain, - mbedtls_x509_crl *ca_crl ); - -/** - * \brief Set authmode for the current handshake. - * - * \note Same as \c mbedtls_ssl_conf_authmode() but for use within - * the SNI callback. - * - * \param ssl SSL context - * \param authmode MBEDTLS_SSL_VERIFY_NONE, MBEDTLS_SSL_VERIFY_OPTIONAL or - * MBEDTLS_SSL_VERIFY_REQUIRED - */ -void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl, - int authmode ); - -/** - * \brief Set server side ServerName TLS extension callback - * (optional, server-side only). - * - * If set, the ServerName callback is called whenever the - * server receives a ServerName TLS extension from the client - * during a handshake. The ServerName callback has the - * following parameters: (void *parameter, mbedtls_ssl_context *ssl, - * const unsigned char *hostname, size_t len). If a suitable - * certificate is found, the callback must set the - * certificate(s) and key(s) to use with \c - * mbedtls_ssl_set_hs_own_cert() (can be called repeatedly), - * and may optionally adjust the CA and associated CRL with \c - * mbedtls_ssl_set_hs_ca_chain() as well as the client - * authentication mode with \c mbedtls_ssl_set_hs_authmode(), - * then must return 0. If no matching name is found, the - * callback must either set a default cert, or - * return non-zero to abort the handshake at this point. - * - * \param conf SSL configuration - * \param f_sni verification function - * \param p_sni verification parameter - */ -void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf, - int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *, - size_t), - void *p_sni ); -#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -/** - * \brief Set the EC J-PAKE password for current handshake. - * - * \note An internal copy is made, and destroyed as soon as the - * handshake is completed, or when the SSL context is reset or - * freed. - * - * \note The SSL context needs to be already set up. The right place - * to call this function is between \c mbedtls_ssl_setup() or - * \c mbedtls_ssl_reset() and \c mbedtls_ssl_handshake(). - * - * \param ssl SSL context - * \param pw EC J-PAKE password (pre-shared secret) - * \param pw_len length of pw in bytes - * - * \return 0 on success, or a negative error code. - */ -int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl, - const unsigned char *pw, - size_t pw_len ); -#endif /*MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_SSL_ALPN) -/** - * \brief Set the supported Application Layer Protocols. - * - * \param conf SSL configuration - * \param protos Pointer to a NULL-terminated list of supported protocols, - * in decreasing preference order. The pointer to the list is - * recorded by the library for later reference as required, so - * the lifetime of the table must be atleast as long as the - * lifetime of the SSL configuration structure. - * - * \return 0 on success, or MBEDTLS_ERR_SSL_BAD_INPUT_DATA. - */ -int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos ); - -/** - * \brief Get the name of the negotiated Application Layer Protocol. - * This function should be called after the handshake is - * completed. - * - * \param ssl SSL context - * - * \return Protcol name, or NULL if no protocol was negotiated. - */ -const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl ); -#endif /* MBEDTLS_SSL_ALPN */ - -/** - * \brief Set the maximum supported version sent from the client side - * and/or accepted at the server side - * (Default: MBEDTLS_SSL_MAX_MAJOR_VERSION, MBEDTLS_SSL_MAX_MINOR_VERSION) - * - * \note This ignores ciphersuites from higher versions. - * - * \note With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 and - * MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2 - * - * \param conf SSL configuration - * \param major Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 supported) - * \param minor Minor version number (MBEDTLS_SSL_MINOR_VERSION_0, - * MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2, - * MBEDTLS_SSL_MINOR_VERSION_3 supported) - */ -void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor ); - -/** - * \brief Set the minimum accepted SSL/TLS protocol version - * (Default: TLS 1.0) - * - * \note Input outside of the SSL_MAX_XXXXX_VERSION and - * SSL_MIN_XXXXX_VERSION range is ignored. - * - * \note MBEDTLS_SSL_MINOR_VERSION_0 (SSL v3) should be avoided. - * - * \note With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 and - * MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2 - * - * \param conf SSL configuration - * \param major Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 supported) - * \param minor Minor version number (MBEDTLS_SSL_MINOR_VERSION_0, - * MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2, - * MBEDTLS_SSL_MINOR_VERSION_3 supported) - */ -void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor ); - -#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C) -/** - * \brief Set the fallback flag (client-side only). - * (Default: MBEDTLS_SSL_IS_NOT_FALLBACK). - * - * \note Set to MBEDTLS_SSL_IS_FALLBACK when preparing a fallback - * connection, that is a connection with max_version set to a - * lower value than the value you're willing to use. Such - * fallback connections are not recommended but are sometimes - * necessary to interoperate with buggy (version-intolerant) - * servers. - * - * \warning You should NOT set this to MBEDTLS_SSL_IS_FALLBACK for - * non-fallback connections! This would appear to work for a - * while, then cause failures when the server is upgraded to - * support a newer TLS version. - * - * \param conf SSL configuration - * \param fallback MBEDTLS_SSL_IS_NOT_FALLBACK or MBEDTLS_SSL_IS_FALLBACK - */ -void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback ); -#endif /* MBEDTLS_SSL_FALLBACK_SCSV && MBEDTLS_SSL_CLI_C */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) -/** - * \brief Enable or disable Encrypt-then-MAC - * (Default: MBEDTLS_SSL_ETM_ENABLED) - * - * \note This should always be enabled, it is a security - * improvement, and should not cause any interoperability - * issue (used only if the peer supports it too). - * - * \param conf SSL configuration - * \param etm MBEDTLS_SSL_ETM_ENABLED or MBEDTLS_SSL_ETM_DISABLED - */ -void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm ); -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) -/** - * \brief Enable or disable Extended Master Secret negotiation. - * (Default: MBEDTLS_SSL_EXTENDED_MS_ENABLED) - * - * \note This should always be enabled, it is a security fix to the - * protocol, and should not cause any interoperability issue - * (used only if the peer supports it too). - * - * \param conf SSL configuration - * \param ems MBEDTLS_SSL_EXTENDED_MS_ENABLED or MBEDTLS_SSL_EXTENDED_MS_DISABLED - */ -void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems ); -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_ARC4_C) -/** - * \brief Disable or enable support for RC4 - * (Default: MBEDTLS_SSL_ARC4_DISABLED) - * - * \warning Use of RC4 in DTLS/TLS has been prohibited by RFC 7465 - * for security reasons. Use at your own risk. - * - * \note This function is deprecated and will likely be removed in - * a future version of the library. - * RC4 is disabled by default at compile time and needs to be - * actively enabled for use with legacy systems. - * - * \param conf SSL configuration - * \param arc4 MBEDTLS_SSL_ARC4_ENABLED or MBEDTLS_SSL_ARC4_DISABLED - */ -void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 ); -#endif /* MBEDTLS_ARC4_C */ - -#if defined(MBEDTLS_SSL_SRV_C) -/** - * \brief Whether to send a list of acceptable CAs in - * CertificateRequest messages. - * (Default: do send) - * - * \param conf SSL configuration - * \param cert_req_ca_list MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED or - * MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED - */ -void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf, - char cert_req_ca_list ); -#endif /* MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -/** - * \brief Set the maximum fragment length to emit and/or negotiate - * (Default: the smaller of MBEDTLS_SSL_IN_CONTENT_LEN and - * MBEDTLS_SSL_OUT_CONTENT_LEN, usually 2^14 bytes) - * (Server: set maximum fragment length to emit, - * usually negotiated by the client during handshake - * (Client: set maximum fragment length to emit *and* - * negotiate with the server during handshake) - * - * \note With TLS, this currently only affects ApplicationData (sent - * with \c mbedtls_ssl_read()), not handshake messages. - * With DTLS, this affects both ApplicationData and handshake. - * - * \note This sets the maximum length for a record's payload, - * excluding record overhead that will be added to it, see - * \c mbedtls_ssl_get_record_expansion(). - * - * \note For DTLS, it is also possible to set a limit for the total - * size of daragrams passed to the transport layer, including - * record overhead, see \c mbedtls_ssl_set_mtu(). - * - * \param conf SSL configuration - * \param mfl_code Code for maximum fragment length (allowed values: - * MBEDTLS_SSL_MAX_FRAG_LEN_512, MBEDTLS_SSL_MAX_FRAG_LEN_1024, - * MBEDTLS_SSL_MAX_FRAG_LEN_2048, MBEDTLS_SSL_MAX_FRAG_LEN_4096) - * - * \return 0 if successful or MBEDTLS_ERR_SSL_BAD_INPUT_DATA - */ -int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code ); -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) -/** - * \brief Activate negotiation of truncated HMAC - * (Default: MBEDTLS_SSL_TRUNC_HMAC_DISABLED) - * - * \param conf SSL configuration - * \param truncate Enable or disable (MBEDTLS_SSL_TRUNC_HMAC_ENABLED or - * MBEDTLS_SSL_TRUNC_HMAC_DISABLED) - */ -void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate ); -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) -/** - * \brief Enable / Disable 1/n-1 record splitting - * (Default: MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED) - * - * \note Only affects SSLv3 and TLS 1.0, not higher versions. - * Does not affect non-CBC ciphersuites in any version. - * - * \param conf SSL configuration - * \param split MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED or - * MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED - */ -void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split ); -#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) -/** - * \brief Enable / Disable session tickets (client only). - * (Default: MBEDTLS_SSL_SESSION_TICKETS_ENABLED.) - * - * \note On server, use \c mbedtls_ssl_conf_session_tickets_cb(). - * - * \param conf SSL configuration - * \param use_tickets Enable or disable (MBEDTLS_SSL_SESSION_TICKETS_ENABLED or - * MBEDTLS_SSL_SESSION_TICKETS_DISABLED) - */ -void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets ); -#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ - -#if defined(MBEDTLS_SSL_RENEGOTIATION) -/** - * \brief Enable / Disable renegotiation support for connection when - * initiated by peer - * (Default: MBEDTLS_SSL_RENEGOTIATION_DISABLED) - * - * \warning It is recommended to always disable renegotation unless you - * know you need it and you know what you're doing. In the - * past, there have been several issues associated with - * renegotiation or a poor understanding of its properties. - * - * \note Server-side, enabling renegotiation also makes the server - * susceptible to a resource DoS by a malicious client. - * - * \param conf SSL configuration - * \param renegotiation Enable or disable (MBEDTLS_SSL_RENEGOTIATION_ENABLED or - * MBEDTLS_SSL_RENEGOTIATION_DISABLED) - */ -void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation ); -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - -/** - * \brief Prevent or allow legacy renegotiation. - * (Default: MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION) - * - * MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION allows connections to - * be established even if the peer does not support - * secure renegotiation, but does not allow renegotiation - * to take place if not secure. - * (Interoperable and secure option) - * - * MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION allows renegotiations - * with non-upgraded peers. Allowing legacy renegotiation - * makes the connection vulnerable to specific man in the - * middle attacks. (See RFC 5746) - * (Most interoperable and least secure option) - * - * MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE breaks off connections - * if peer does not support secure renegotiation. Results - * in interoperability issues with non-upgraded peers - * that do not support renegotiation altogether. - * (Most secure option, interoperability issues) - * - * \param conf SSL configuration - * \param allow_legacy Prevent or allow (SSL_NO_LEGACY_RENEGOTIATION, - * SSL_ALLOW_LEGACY_RENEGOTIATION or - * MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE) - */ -void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) -/** - * \brief Enforce renegotiation requests. - * (Default: enforced, max_records = 16) - * - * When we request a renegotiation, the peer can comply or - * ignore the request. This function allows us to decide - * whether to enforce our renegotiation requests by closing - * the connection if the peer doesn't comply. - * - * However, records could already be in transit from the peer - * when the request is emitted. In order to increase - * reliability, we can accept a number of records before the - * expected handshake records. - * - * The optimal value is highly dependent on the specific usage - * scenario. - * - * \note With DTLS and server-initiated renegotiation, the - * HelloRequest is retransmited every time mbedtls_ssl_read() times - * out or receives Application Data, until: - * - max_records records have beens seen, if it is >= 0, or - * - the number of retransmits that would happen during an - * actual handshake has been reached. - * Please remember the request might be lost a few times - * if you consider setting max_records to a really low value. - * - * \warning On client, the grace period can only happen during - * mbedtls_ssl_read(), as opposed to mbedtls_ssl_write() and mbedtls_ssl_renegotiate() - * which always behave as if max_record was 0. The reason is, - * if we receive application data from the server, we need a - * place to write it, which only happens during mbedtls_ssl_read(). - * - * \param conf SSL configuration - * \param max_records Use MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED if you don't want to - * enforce renegotiation, or a non-negative value to enforce - * it but allow for a grace period of max_records records. - */ -void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records ); - -/** - * \brief Set record counter threshold for periodic renegotiation. - * (Default: 2^48 - 1) - * - * Renegotiation is automatically triggered when a record - * counter (outgoing or ingoing) crosses the defined - * threshold. The default value is meant to prevent the - * connection from being closed when the counter is about to - * reached its maximal value (it is not allowed to wrap). - * - * Lower values can be used to enforce policies such as "keys - * must be refreshed every N packets with cipher X". - * - * The renegotiation period can be disabled by setting - * conf->disable_renegotiation to - * MBEDTLS_SSL_RENEGOTIATION_DISABLED. - * - * \note When the configured transport is - * MBEDTLS_SSL_TRANSPORT_DATAGRAM the maximum renegotiation - * period is 2^48 - 1, and for MBEDTLS_SSL_TRANSPORT_STREAM, - * the maximum renegotiation period is 2^64 - 1. - * - * \param conf SSL configuration - * \param period The threshold value: a big-endian 64-bit number. - */ -void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf, - const unsigned char period[8] ); -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - -/** - * \brief Check if there is data already read from the - * underlying transport but not yet processed. - * - * \param ssl SSL context - * - * \return 0 if nothing's pending, 1 otherwise. - * - * \note This is different in purpose and behaviour from - * \c mbedtls_ssl_get_bytes_avail in that it considers - * any kind of unprocessed data, not only unread - * application data. If \c mbedtls_ssl_get_bytes - * returns a non-zero value, this function will - * also signal pending data, but the converse does - * not hold. For example, in DTLS there might be - * further records waiting to be processed from - * the current underlying transport's datagram. - * - * \note If this function returns 1 (data pending), this - * does not imply that a subsequent call to - * \c mbedtls_ssl_read will provide any data; - * e.g., the unprocessed data might turn out - * to be an alert or a handshake message. - * - * \note This function is useful in the following situation: - * If the SSL/TLS module successfully returns from an - * operation - e.g. a handshake or an application record - * read - and you're awaiting incoming data next, you - * must not immediately idle on the underlying transport - * to have data ready, but you need to check the value - * of this function first. The reason is that the desired - * data might already be read but not yet processed. - * If, in contrast, a previous call to the SSL/TLS module - * returned MBEDTLS_ERR_SSL_WANT_READ, it is not necessary - * to call this function, as the latter error code entails - * that all internal data has been processed. - * - */ -int mbedtls_ssl_check_pending( const mbedtls_ssl_context *ssl ); - -/** - * \brief Return the number of application data bytes - * remaining to be read from the current record. - * - * \param ssl SSL context - * - * \return How many bytes are available in the application - * data record read buffer. - * - * \note When working over a datagram transport, this is - * useful to detect the current datagram's boundary - * in case \c mbedtls_ssl_read has written the maximal - * amount of data fitting into the input buffer. - * - */ -size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl ); - -/** - * \brief Return the result of the certificate verification - * - * \param ssl The SSL context to use. - * - * \return \c 0 if the certificate verification was successful. - * \return \c -1u if the result is not available. This may happen - * e.g. if the handshake aborts early, or a verification - * callback returned a fatal error. - * \return A bitwise combination of \c MBEDTLS_X509_BADCERT_XXX - * and \c MBEDTLS_X509_BADCRL_XXX failure flags; see x509.h. - */ -uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl ); - -/** - * \brief Return the name of the current ciphersuite - * - * \param ssl SSL context - * - * \return a string containing the ciphersuite name - */ -const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl ); - -/** - * \brief Return the current SSL version (SSLv3/TLSv1/etc) - * - * \param ssl SSL context - * - * \return a string containing the SSL version - */ -const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl ); - -/** - * \brief Return the (maximum) number of bytes added by the record - * layer: header + encryption/MAC overhead (inc. padding) - * - * \note This function is not available (always returns an error) - * when record compression is enabled. - * - * \param ssl SSL context - * - * \return Current maximum record expansion in bytes, or - * MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE if compression is - * enabled, which makes expansion much less predictable - */ -int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl ); - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -/** - * \brief Return the maximum fragment length (payload, in bytes). - * This is the value negotiated with peer if any, - * or the locally configured value. - * - * \sa mbedtls_ssl_conf_max_frag_len() - * \sa mbedtls_ssl_get_max_record_payload() - * - * \param ssl SSL context - * - * \return Current maximum fragment length. - */ -size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl ); -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -/** - * \brief Return the current maximum outgoing record payload in bytes. - * This takes into account the config.h setting \c - * MBEDTLS_SSL_OUT_CONTENT_LEN, the configured and negotiated - * max fragment length extension if used, and for DTLS the - * path MTU as configured and current record expansion. - * - * \note With DTLS, \c mbedtls_ssl_write() will return an error if - * called with a larger length value. - * With TLS, \c mbedtls_ssl_write() will fragment the input if - * necessary and return the number of bytes written; it is up - * to the caller to call \c mbedtls_ssl_write() again in - * order to send the remaining bytes if any. - * - * \note This function is not available (always returns an error) - * when record compression is enabled. - * - * \sa mbedtls_ssl_set_mtu() - * \sa mbedtls_ssl_get_max_frag_len() - * \sa mbedtls_ssl_get_record_expansion() - * - * \param ssl SSL context - * - * \return Current maximum payload for an outgoing record, - * or a negative error code. - */ -int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl ); - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * \brief Return the peer certificate from the current connection. - * - * \param ssl The SSL context to use. This must be initialized and setup. - * - * \return The current peer certificate, if available. - * The returned certificate is owned by the SSL context and - * is valid only until the next call to the SSL API. - * \return \c NULL if no peer certificate is available. This might - * be because the chosen ciphersuite doesn't use CRTs - * (PSK-based ciphersuites, for example), or because - * #MBEDTLS_SSL_KEEP_PEER_CERTIFICATE has been disabled, - * allowing the stack to free the peer's CRT to save memory. - * - * \note For one-time inspection of the peer's certificate during - * the handshake, consider registering an X.509 CRT verification - * callback through mbedtls_ssl_conf_verify() instead of calling - * this function. Using mbedtls_ssl_conf_verify() also comes at - * the benefit of allowing you to influence the verification - * process, for example by masking expected and tolerated - * verification failures. - * - * \warning You must not use the pointer returned by this function - * after any further call to the SSL API, including - * mbedtls_ssl_read() and mbedtls_ssl_write(); this is - * because the pointer might change during renegotiation, - * which happens transparently to the user. - * If you want to use the certificate across API calls, - * you must make a copy. - */ -const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl ); -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_CLI_C) -/** - * \brief Save session in order to resume it later (client-side only) - * Session data is copied to presented session structure. - * - * - * \param ssl SSL context - * \param session session context - * - * \return 0 if successful, - * MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed, - * MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used server-side or - * arguments are otherwise invalid. - * - * \note Only the server certificate is copied, and not the full chain, - * so you should not attempt to validate the certificate again - * by calling \c mbedtls_x509_crt_verify() on it. - * Instead, you should use the results from the verification - * in the original handshake by calling \c mbedtls_ssl_get_verify_result() - * after loading the session again into a new SSL context - * using \c mbedtls_ssl_set_session(). - * - * \note Once the session object is not needed anymore, you should - * free it by calling \c mbedtls_ssl_session_free(). - * - * \sa mbedtls_ssl_set_session() - */ -int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl, mbedtls_ssl_session *session ); -#endif /* MBEDTLS_SSL_CLI_C */ - -/** - * \brief Perform the SSL handshake - * - * \param ssl SSL context - * - * \return \c 0 if successful. - * \return #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE - * if the handshake is incomplete and waiting for data to - * be available for reading from or writing to the underlying - * transport - in this case you must call this function again - * when the underlying transport is ready for the operation. - * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous - * operation is in progress (see - * mbedtls_ssl_conf_async_private_cb()) - in this case you - * must call this function again when the operation is ready. - * \return #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic - * operation is in progress (see mbedtls_ecp_set_max_ops()) - - * in this case you must call this function again to complete - * the handshake when you're done attending other tasks. - * \return #MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED if DTLS is in use - * and the client did not demonstrate reachability yet - in - * this case you must stop using the context (see below). - * \return Another SSL error code - in this case you must stop using - * the context (see below). - * - * \warning If this function returns something other than - * \c 0, - * #MBEDTLS_ERR_SSL_WANT_READ, - * #MBEDTLS_ERR_SSL_WANT_WRITE, - * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or - * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, - * you must stop using the SSL context for reading or writing, - * and either free it or call \c mbedtls_ssl_session_reset() - * on it before re-using it for a new connection; the current - * connection must be closed. - * - * \note If DTLS is in use, then you may choose to handle - * #MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED specially for logging - * purposes, as it is an expected return value rather than an - * actual error, but you still need to reset/free the context. - * - * \note Remarks regarding event-driven DTLS: - * If the function returns #MBEDTLS_ERR_SSL_WANT_READ, no datagram - * from the underlying transport layer is currently being processed, - * and it is safe to idle until the timer or the underlying transport - * signal a new event. This is not true for a successful handshake, - * in which case the datagram of the underlying transport that is - * currently being processed might or might not contain further - * DTLS records. - */ -int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl ); - -/** - * \brief Perform a single step of the SSL handshake - * - * \note The state of the context (ssl->state) will be at - * the next state after this function returns \c 0. Do not - * call this function if state is MBEDTLS_SSL_HANDSHAKE_OVER. - * - * \param ssl SSL context - * - * \return See mbedtls_ssl_handshake(). - * - * \warning If this function returns something other than \c 0, - * #MBEDTLS_ERR_SSL_WANT_READ, #MBEDTLS_ERR_SSL_WANT_WRITE, - * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or - * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, you must stop using - * the SSL context for reading or writing, and either free it - * or call \c mbedtls_ssl_session_reset() on it before - * re-using it for a new connection; the current connection - * must be closed. - */ -int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) -/** - * \brief Initiate an SSL renegotiation on the running connection. - * Client: perform the renegotiation right now. - * Server: request renegotiation, which will be performed - * during the next call to mbedtls_ssl_read() if honored by - * client. - * - * \param ssl SSL context - * - * \return 0 if successful, or any mbedtls_ssl_handshake() return - * value except #MBEDTLS_ERR_SSL_CLIENT_RECONNECT that can't - * happen during a renegotiation. - * - * \warning If this function returns something other than \c 0, - * #MBEDTLS_ERR_SSL_WANT_READ, #MBEDTLS_ERR_SSL_WANT_WRITE, - * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or - * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, you must stop using - * the SSL context for reading or writing, and either free it - * or call \c mbedtls_ssl_session_reset() on it before - * re-using it for a new connection; the current connection - * must be closed. - * - */ -int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl ); -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - -/** - * \brief Read at most 'len' application data bytes - * - * \param ssl SSL context - * \param buf buffer that will hold the data - * \param len maximum number of bytes to read - * - * \return The (positive) number of bytes read if successful. - * \return \c 0 if the read end of the underlying transport was closed - * - in this case you must stop using the context (see below). - * \return #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE - * if the handshake is incomplete and waiting for data to - * be available for reading from or writing to the underlying - * transport - in this case you must call this function again - * when the underlying transport is ready for the operation. - * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous - * operation is in progress (see - * mbedtls_ssl_conf_async_private_cb()) - in this case you - * must call this function again when the operation is ready. - * \return #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic - * operation is in progress (see mbedtls_ecp_set_max_ops()) - - * in this case you must call this function again to complete - * the handshake when you're done attending other tasks. - * \return #MBEDTLS_ERR_SSL_CLIENT_RECONNECT if we're at the server - * side of a DTLS connection and the client is initiating a - * new connection using the same source port. See below. - * \return Another SSL error code - in this case you must stop using - * the context (see below). - * - * \warning If this function returns something other than - * a positive value, - * #MBEDTLS_ERR_SSL_WANT_READ, - * #MBEDTLS_ERR_SSL_WANT_WRITE, - * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, - * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS or - * #MBEDTLS_ERR_SSL_CLIENT_RECONNECT, - * you must stop using the SSL context for reading or writing, - * and either free it or call \c mbedtls_ssl_session_reset() - * on it before re-using it for a new connection; the current - * connection must be closed. - * - * \note When this function returns #MBEDTLS_ERR_SSL_CLIENT_RECONNECT - * (which can only happen server-side), it means that a client - * is initiating a new connection using the same source port. - * You can either treat that as a connection close and wait - * for the client to resend a ClientHello, or directly - * continue with \c mbedtls_ssl_handshake() with the same - * context (as it has been reset internally). Either way, you - * must make sure this is seen by the application as a new - * connection: application state, if any, should be reset, and - * most importantly the identity of the client must be checked - * again. WARNING: not validating the identity of the client - * again, or not transmitting the new identity to the - * application layer, would allow authentication bypass! - * - * \note Remarks regarding event-driven DTLS: - * - If the function returns #MBEDTLS_ERR_SSL_WANT_READ, no datagram - * from the underlying transport layer is currently being processed, - * and it is safe to idle until the timer or the underlying transport - * signal a new event. - * - This function may return MBEDTLS_ERR_SSL_WANT_READ even if data was - * initially available on the underlying transport, as this data may have - * been only e.g. duplicated messages or a renegotiation request. - * Therefore, you must be prepared to receive MBEDTLS_ERR_SSL_WANT_READ even - * when reacting to an incoming-data event from the underlying transport. - * - On success, the datagram of the underlying transport that is currently - * being processed may contain further DTLS records. You should call - * \c mbedtls_ssl_check_pending to check for remaining records. - * - */ -int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len ); - -/** - * \brief Try to write exactly 'len' application data bytes - * - * \warning This function will do partial writes in some cases. If the - * return value is non-negative but less than length, the - * function must be called again with updated arguments: - * buf + ret, len - ret (if ret is the return value) until - * it returns a value equal to the last 'len' argument. - * - * \param ssl SSL context - * \param buf buffer holding the data - * \param len how many bytes must be written - * - * \return The (non-negative) number of bytes actually written if - * successful (may be less than \p len). - * \return #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE - * if the handshake is incomplete and waiting for data to - * be available for reading from or writing to the underlying - * transport - in this case you must call this function again - * when the underlying transport is ready for the operation. - * \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous - * operation is in progress (see - * mbedtls_ssl_conf_async_private_cb()) - in this case you - * must call this function again when the operation is ready. - * \return #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic - * operation is in progress (see mbedtls_ecp_set_max_ops()) - - * in this case you must call this function again to complete - * the handshake when you're done attending other tasks. - * \return Another SSL error code - in this case you must stop using - * the context (see below). - * - * \warning If this function returns something other than - * a non-negative value, - * #MBEDTLS_ERR_SSL_WANT_READ, - * #MBEDTLS_ERR_SSL_WANT_WRITE, - * #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or - * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, - * you must stop using the SSL context for reading or writing, - * and either free it or call \c mbedtls_ssl_session_reset() - * on it before re-using it for a new connection; the current - * connection must be closed. - * - * \note When this function returns #MBEDTLS_ERR_SSL_WANT_WRITE/READ, - * it must be called later with the *same* arguments, - * until it returns a value greater that or equal to 0. When - * the function returns #MBEDTLS_ERR_SSL_WANT_WRITE there may be - * some partial data in the output buffer, however this is not - * yet sent. - * - * \note If the requested length is greater than the maximum - * fragment length (either the built-in limit or the one set - * or negotiated with the peer), then: - * - with TLS, less bytes than requested are written. - * - with DTLS, MBEDTLS_ERR_SSL_BAD_INPUT_DATA is returned. - * \c mbedtls_ssl_get_max_frag_len() may be used to query the - * active maximum fragment length. - * - * \note Attempting to write 0 bytes will result in an empty TLS - * application record being sent. - */ -int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ); - -/** - * \brief Send an alert message - * - * \param ssl SSL context - * \param level The alert level of the message - * (MBEDTLS_SSL_ALERT_LEVEL_WARNING or MBEDTLS_SSL_ALERT_LEVEL_FATAL) - * \param message The alert message (SSL_ALERT_MSG_*) - * - * \return 0 if successful, or a specific SSL error code. - * - * \note If this function returns something other than 0 or - * MBEDTLS_ERR_SSL_WANT_READ/WRITE, you must stop using - * the SSL context for reading or writing, and either free it or - * call \c mbedtls_ssl_session_reset() on it before re-using it - * for a new connection; the current connection must be closed. - */ -int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl, - unsigned char level, - unsigned char message ); -/** - * \brief Notify the peer that the connection is being closed - * - * \param ssl SSL context - * - * \return 0 if successful, or a specific SSL error code. - * - * \note If this function returns something other than 0 or - * MBEDTLS_ERR_SSL_WANT_READ/WRITE, you must stop using - * the SSL context for reading or writing, and either free it or - * call \c mbedtls_ssl_session_reset() on it before re-using it - * for a new connection; the current connection must be closed. - */ -int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl ); - -/** - * \brief Free referenced items in an SSL context and clear memory - * - * \param ssl SSL context - */ -void mbedtls_ssl_free( mbedtls_ssl_context *ssl ); - -/** - * \brief Initialize an SSL configuration context - * Just makes the context ready for - * mbedtls_ssl_config_defaults() or mbedtls_ssl_config_free(). - * - * \note You need to call mbedtls_ssl_config_defaults() unless you - * manually set all of the relevant fields yourself. - * - * \param conf SSL configuration context - */ -void mbedtls_ssl_config_init( mbedtls_ssl_config *conf ); - -/** - * \brief Load reasonnable default SSL configuration values. - * (You need to call mbedtls_ssl_config_init() first.) - * - * \param conf SSL configuration context - * \param endpoint MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER - * \param transport MBEDTLS_SSL_TRANSPORT_STREAM for TLS, or - * MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS - * \param preset a MBEDTLS_SSL_PRESET_XXX value - * - * \note See \c mbedtls_ssl_conf_transport() for notes on DTLS. - * - * \return 0 if successful, or - * MBEDTLS_ERR_XXX_ALLOC_FAILED on memory allocation error. - */ -int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, - int endpoint, int transport, int preset ); - -/** - * \brief Free an SSL configuration context - * - * \param conf SSL configuration context - */ -void mbedtls_ssl_config_free( mbedtls_ssl_config *conf ); - -/** - * \brief Initialize SSL session structure - * - * \param session SSL session - */ -void mbedtls_ssl_session_init( mbedtls_ssl_session *session ); - -/** - * \brief Free referenced items in an SSL session including the - * peer certificate and clear memory - * - * \note A session object can be freed even if the SSL context - * that was used to retrieve the session is still in use. - * - * \param session SSL session - */ -void mbedtls_ssl_session_free( mbedtls_ssl_session *session ); - -#ifdef __cplusplus -} -#endif - -#endif /* ssl.h */ diff --git a/include/mbedtls/ssl_cache.h b/include/mbedtls/ssl_cache.h deleted file mode 100644 index 84254d3d1..000000000 --- a/include/mbedtls/ssl_cache.h +++ /dev/null @@ -1,151 +0,0 @@ -/** - * \file ssl_cache.h - * - * \brief SSL session cache implementation - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_SSL_CACHE_H -#define MBEDTLS_SSL_CACHE_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "ssl.h" - -#if defined(MBEDTLS_THREADING_C) -#include "threading.h" -#endif - -/** - * \name SECTION: Module settings - * - * The configuration options you can set for this module are in this section. - * Either change them in config.h or define them on the compiler command line. - * \{ - */ - -#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT) -#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /*!< 1 day */ -#endif - -#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES) -#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /*!< Maximum entries in cache */ -#endif - -/* \} name SECTION: Module settings */ - -#ifdef __cplusplus -extern "C" { -#endif - -typedef struct mbedtls_ssl_cache_context mbedtls_ssl_cache_context; -typedef struct mbedtls_ssl_cache_entry mbedtls_ssl_cache_entry; - -/** - * \brief This structure is used for storing cache entries - */ -struct mbedtls_ssl_cache_entry -{ -#if defined(MBEDTLS_HAVE_TIME) - mbedtls_time_t timestamp; /*!< entry timestamp */ -#endif - mbedtls_ssl_session session; /*!< entry session */ -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_x509_buf peer_cert; /*!< entry peer_cert */ -#endif - mbedtls_ssl_cache_entry *next; /*!< chain pointer */ -}; - -/** - * \brief Cache context - */ -struct mbedtls_ssl_cache_context -{ - mbedtls_ssl_cache_entry *chain; /*!< start of the chain */ - int timeout; /*!< cache entry timeout */ - int max_entries; /*!< maximum entries */ -#if defined(MBEDTLS_THREADING_C) - mbedtls_threading_mutex_t mutex; /*!< mutex */ -#endif -}; - -/** - * \brief Initialize an SSL cache context - * - * \param cache SSL cache context - */ -void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache ); - -/** - * \brief Cache get callback implementation - * (Thread-safe if MBEDTLS_THREADING_C is enabled) - * - * \param data SSL cache context - * \param session session to retrieve entry for - */ -int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session ); - -/** - * \brief Cache set callback implementation - * (Thread-safe if MBEDTLS_THREADING_C is enabled) - * - * \param data SSL cache context - * \param session session to store entry for - */ -int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session ); - -#if defined(MBEDTLS_HAVE_TIME) -/** - * \brief Set the cache timeout - * (Default: MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT (1 day)) - * - * A timeout of 0 indicates no timeout. - * - * \param cache SSL cache context - * \param timeout cache entry timeout in seconds - */ -void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout ); -#endif /* MBEDTLS_HAVE_TIME */ - -/** - * \brief Set the maximum number of cache entries - * (Default: MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES (50)) - * - * \param cache SSL cache context - * \param max cache entry maximum - */ -void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max ); - -/** - * \brief Free referenced items in a cache context and clear memory - * - * \param cache SSL cache context - */ -void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache ); - -#ifdef __cplusplus -} -#endif - -#endif /* ssl_cache.h */ diff --git a/include/mbedtls/ssl_ciphersuites.h b/include/mbedtls/ssl_ciphersuites.h deleted file mode 100644 index 712678330..000000000 --- a/include/mbedtls/ssl_ciphersuites.h +++ /dev/null @@ -1,558 +0,0 @@ -/** - * \file ssl_ciphersuites.h - * - * \brief SSL Ciphersuites for mbed TLS - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_SSL_CIPHERSUITES_H -#define MBEDTLS_SSL_CIPHERSUITES_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "pk.h" -#include "cipher.h" -#include "md.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Supported ciphersuites (Official IANA names) - */ -#define MBEDTLS_TLS_RSA_WITH_NULL_MD5 0x01 /**< Weak! */ -#define MBEDTLS_TLS_RSA_WITH_NULL_SHA 0x02 /**< Weak! */ - -#define MBEDTLS_TLS_RSA_WITH_RC4_128_MD5 0x04 -#define MBEDTLS_TLS_RSA_WITH_RC4_128_SHA 0x05 -#define MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA 0x09 /**< Weak! Not in TLS 1.2 */ - -#define MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x0A - -#define MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA 0x15 /**< Weak! Not in TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA 0x16 - -#define MBEDTLS_TLS_PSK_WITH_NULL_SHA 0x2C /**< Weak! */ -#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA 0x2D /**< Weak! */ -#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA 0x2E /**< Weak! */ -#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA 0x2F - -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA 0x33 -#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA 0x35 -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA 0x39 - -#define MBEDTLS_TLS_RSA_WITH_NULL_SHA256 0x3B /**< Weak! */ -#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256 0x3C /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256 0x3D /**< TLS 1.2 */ - -#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 0x41 -#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 0x45 - -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 0x67 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 0x6B /**< TLS 1.2 */ - -#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 0x84 -#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 0x88 - -#define MBEDTLS_TLS_PSK_WITH_RC4_128_SHA 0x8A -#define MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA 0x8B -#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA 0x8C -#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA 0x8D - -#define MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA 0x8E -#define MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA 0x8F -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA 0x90 -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA 0x91 - -#define MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA 0x92 -#define MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA 0x93 -#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA 0x94 -#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA 0x95 - -#define MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256 0x9C /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384 0x9D /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 0x9E /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 0x9F /**< TLS 1.2 */ - -#define MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256 0xA8 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384 0xA9 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 0xAA /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 0xAB /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 0xAC /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 0xAD /**< TLS 1.2 */ - -#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256 0xAE -#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384 0xAF -#define MBEDTLS_TLS_PSK_WITH_NULL_SHA256 0xB0 /**< Weak! */ -#define MBEDTLS_TLS_PSK_WITH_NULL_SHA384 0xB1 /**< Weak! */ - -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 0xB2 -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 0xB3 -#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256 0xB4 /**< Weak! */ -#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384 0xB5 /**< Weak! */ - -#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 0xB6 -#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 0xB7 -#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256 0xB8 /**< Weak! */ -#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384 0xB9 /**< Weak! */ - -#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBA /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBE /**< TLS 1.2 */ - -#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC0 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC4 /**< TLS 1.2 */ - -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA 0xC001 /**< Weak! */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA 0xC002 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA 0xC003 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA 0xC004 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA 0xC005 /**< Not in SSL3! */ - -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA 0xC006 /**< Weak! */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA 0xC007 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA 0xC008 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA 0xC009 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA 0xC00A /**< Not in SSL3! */ - -#define MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA 0xC00B /**< Weak! */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA 0xC00C /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA 0xC00D /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA 0xC00E /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA 0xC00F /**< Not in SSL3! */ - -#define MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA 0xC010 /**< Weak! */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA 0xC011 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA 0xC012 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA 0xC013 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA 0xC014 /**< Not in SSL3! */ - -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 0xC023 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 0xC024 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 0xC025 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 0xC026 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 0xC027 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 0xC028 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 0xC029 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 0xC02A /**< TLS 1.2 */ - -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 0xC02B /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 0xC02C /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 0xC02D /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 0xC02E /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 0xC02F /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 0xC030 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 0xC031 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 0xC032 /**< TLS 1.2 */ - -#define MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA 0xC033 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA 0xC034 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA 0xC035 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA 0xC036 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 0xC037 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 0xC038 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA 0xC039 /**< Weak! No SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256 0xC03A /**< Weak! No SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384 0xC03B /**< Weak! No SSL3! */ - -#define MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256 0xC03C /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384 0xC03D /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 0xC044 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 0xC045 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 0xC048 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 0xC049 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 0xC04A /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 0xC04B /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 0xC04C /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 0xC04D /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 0xC04E /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 0xC04F /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256 0xC050 /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384 0xC051 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 0xC052 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 0xC053 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 0xC05C /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 0xC05D /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 0xC05E /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 0xC05F /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 0xC060 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 0xC061 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 0xC062 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 0xC063 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256 0xC064 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384 0xC065 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 0xC066 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 0xC067 /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 0xC068 /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 0xC069 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256 0xC06A /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384 0xC06B /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256 0xC06C /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384 0xC06D /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 0xC06E /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 0xC06F /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 0xC070 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 0xC071 /**< TLS 1.2 */ - -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC072 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC073 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC074 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC075 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xC076 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 0xC077 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xC078 /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 0xC079 /**< Not in SSL3! */ - -#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC07A /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC07B /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC07C /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC07D /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC086 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC087 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC088 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC089 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC08A /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC08B /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 0xC08C /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 0xC08D /**< TLS 1.2 */ - -#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC08E /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC08F /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC090 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC091 /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 0xC092 /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 0xC093 /**< TLS 1.2 */ - -#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC094 -#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC095 -#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC096 -#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC097 -#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC098 -#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC099 -#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC09A /**< Not in SSL3! */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC09B /**< Not in SSL3! */ - -#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM 0xC09C /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM 0xC09D /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM 0xC09E /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM 0xC09F /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8 0xC0A0 /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8 0xC0A1 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8 0xC0A2 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8 0xC0A3 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM 0xC0A4 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM 0xC0A5 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM 0xC0A6 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM 0xC0A7 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8 0xC0A8 /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8 0xC0A9 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8 0xC0AA /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8 0xC0AB /**< TLS 1.2 */ -/* The last two are named with PSK_DHE in the RFC, which looks like a typo */ - -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM 0xC0AC /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM 0xC0AD /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 0xC0AE /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 0xC0AF /**< TLS 1.2 */ - -#define MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8 0xC0FF /**< experimental */ - -/* RFC 7905 */ -#define MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 0xCCA8 /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 0xCCA9 /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 0xCCAA /**< TLS 1.2 */ -#define MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAB /**< TLS 1.2 */ -#define MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAC /**< TLS 1.2 */ -#define MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAD /**< TLS 1.2 */ -#define MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256 0xCCAE /**< TLS 1.2 */ - -/* Reminder: update mbedtls_ssl_premaster_secret when adding a new key exchange. - * Reminder: update MBEDTLS_KEY_EXCHANGE__xxx below - */ -typedef enum { - MBEDTLS_KEY_EXCHANGE_NONE = 0, - MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_KEY_EXCHANGE_ECJPAKE, -} mbedtls_key_exchange_type_t; - -/* Key exchanges using a certificate */ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED -#endif - -/* Key exchanges allowing client certificate requests */ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED -#endif - -/* Key exchanges involving server signature in ServerKeyExchange */ -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED -#endif - -/* Key exchanges using ECDH */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED -#endif - -/* Key exchanges that don't involve ephemeral keys */ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED -#endif - -/* Key exchanges that involve ephemeral keys */ -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED -#endif - -/* Key exchanges using a PSK */ -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED -#endif - -/* Key exchanges using DHE */ -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED -#endif - -/* Key exchanges using ECDHE */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) -#define MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED -#endif - -typedef struct mbedtls_ssl_ciphersuite_t mbedtls_ssl_ciphersuite_t; - -#define MBEDTLS_CIPHERSUITE_WEAK 0x01 /**< Weak ciphersuite flag */ -#define MBEDTLS_CIPHERSUITE_SHORT_TAG 0x02 /**< Short authentication tag, - eg for CCM_8 */ -#define MBEDTLS_CIPHERSUITE_NODTLS 0x04 /**< Can't be used with DTLS */ - -/** - * \brief This structure is used for storing ciphersuite information - */ -struct mbedtls_ssl_ciphersuite_t -{ - int id; - const char * name; - - mbedtls_cipher_type_t cipher; - mbedtls_md_type_t mac; - mbedtls_key_exchange_type_t key_exchange; - - int min_major_ver; - int min_minor_ver; - int max_major_ver; - int max_minor_ver; - - unsigned char flags; -}; - -const int *mbedtls_ssl_list_ciphersuites( void ); - -const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string( const char *ciphersuite_name ); -const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id( int ciphersuite_id ); - -#if defined(MBEDTLS_PK_C) -mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg( const mbedtls_ssl_ciphersuite_t *info ); -mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_alg( const mbedtls_ssl_ciphersuite_t *info ); -#endif - -int mbedtls_ssl_ciphersuite_uses_ec( const mbedtls_ssl_ciphersuite_t *info ); -int mbedtls_ssl_ciphersuite_uses_psk( const mbedtls_ssl_ciphersuite_t *info ); - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED) -static inline int mbedtls_ssl_ciphersuite_has_pfs( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_DHE_PSK: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - case MBEDTLS_KEY_EXCHANGE_ECJPAKE: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED) -static inline int mbedtls_ssl_ciphersuite_no_pfs( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: - case MBEDTLS_KEY_EXCHANGE_RSA: - case MBEDTLS_KEY_EXCHANGE_PSK: - case MBEDTLS_KEY_EXCHANGE_RSA_PSK: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED) -static inline int mbedtls_ssl_ciphersuite_uses_ecdh( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED */ - -static inline int mbedtls_ssl_ciphersuite_cert_req_allowed( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_RSA: - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - return( 1 ); - - default: - return( 0 ); - } -} - -static inline int mbedtls_ssl_ciphersuite_uses_srv_cert( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_RSA: - case MBEDTLS_KEY_EXCHANGE_RSA_PSK: - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - return( 1 ); - - default: - return( 0 ); - } -} - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED) -static inline int mbedtls_ssl_ciphersuite_uses_dhe( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_DHE_PSK: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED) */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED) -static inline int mbedtls_ssl_ciphersuite_uses_ecdhe( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED) */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) -static inline int mbedtls_ssl_ciphersuite_uses_server_signature( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */ - -#ifdef __cplusplus -} -#endif - -#endif /* ssl_ciphersuites.h */ diff --git a/include/mbedtls/ssl_cookie.h b/include/mbedtls/ssl_cookie.h deleted file mode 100644 index e34760ae8..000000000 --- a/include/mbedtls/ssl_cookie.h +++ /dev/null @@ -1,115 +0,0 @@ -/** - * \file ssl_cookie.h - * - * \brief DTLS cookie callbacks implementation - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_SSL_COOKIE_H -#define MBEDTLS_SSL_COOKIE_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "ssl.h" - -#if defined(MBEDTLS_THREADING_C) -#include "threading.h" -#endif - -/** - * \name SECTION: Module settings - * - * The configuration options you can set for this module are in this section. - * Either change them in config.h or define them on the compiler command line. - * \{ - */ -#ifndef MBEDTLS_SSL_COOKIE_TIMEOUT -#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */ -#endif - -/* \} name SECTION: Module settings */ - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief Context for the default cookie functions. - */ -typedef struct mbedtls_ssl_cookie_ctx -{ - mbedtls_md_context_t hmac_ctx; /*!< context for the HMAC portion */ -#if !defined(MBEDTLS_HAVE_TIME) - unsigned long serial; /*!< serial number for expiration */ -#endif - unsigned long timeout; /*!< timeout delay, in seconds if HAVE_TIME, - or in number of tickets issued */ - -#if defined(MBEDTLS_THREADING_C) - mbedtls_threading_mutex_t mutex; -#endif -} mbedtls_ssl_cookie_ctx; - -/** - * \brief Initialize cookie context - */ -void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx ); - -/** - * \brief Setup cookie context (generate keys) - */ -int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ); - -/** - * \brief Set expiration delay for cookies - * (Default MBEDTLS_SSL_COOKIE_TIMEOUT) - * - * \param ctx Cookie contex - * \param delay Delay, in seconds if HAVE_TIME, or in number of cookies - * issued in the meantime. - * 0 to disable expiration (NOT recommended) - */ -void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay ); - -/** - * \brief Free cookie context - */ -void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx ); - -/** - * \brief Generate cookie, see \c mbedtls_ssl_cookie_write_t - */ -mbedtls_ssl_cookie_write_t mbedtls_ssl_cookie_write; - -/** - * \brief Verify cookie, see \c mbedtls_ssl_cookie_write_t - */ -mbedtls_ssl_cookie_check_t mbedtls_ssl_cookie_check; - -#ifdef __cplusplus -} -#endif - -#endif /* ssl_cookie.h */ diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h deleted file mode 100644 index 5dde239df..000000000 --- a/include/mbedtls/ssl_internal.h +++ /dev/null @@ -1,819 +0,0 @@ -/** - * \file ssl_internal.h - * - * \brief Internal functions shared by the SSL modules - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_SSL_INTERNAL_H -#define MBEDTLS_SSL_INTERNAL_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "ssl.h" -#include "cipher.h" - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "psa/crypto.h" -#endif - -#if defined(MBEDTLS_MD5_C) -#include "md5.h" -#endif - -#if defined(MBEDTLS_SHA1_C) -#include "sha1.h" -#endif - -#if defined(MBEDTLS_SHA256_C) -#include "sha256.h" -#endif - -#if defined(MBEDTLS_SHA512_C) -#include "sha512.h" -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -#include "ecjpake.h" -#endif - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "psa/crypto.h" -#include "psa_util.h" -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ - !defined(inline) && !defined(__cplusplus) -#define inline __inline -#endif - -/* Determine minimum supported version */ -#define MBEDTLS_SSL_MIN_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3 - -#if defined(MBEDTLS_SSL_PROTO_SSL3) -#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_0 -#else -#if defined(MBEDTLS_SSL_PROTO_TLS1) -#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1 -#else -#if defined(MBEDTLS_SSL_PROTO_TLS1_1) -#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_2 -#else -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_3 -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */ -#endif /* MBEDTLS_SSL_PROTO_TLS1 */ -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - -#define MBEDTLS_SSL_MIN_VALID_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1 -#define MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3 - -/* Determine maximum supported version */ -#define MBEDTLS_SSL_MAX_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3 - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_3 -#else -#if defined(MBEDTLS_SSL_PROTO_TLS1_1) -#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_2 -#else -#if defined(MBEDTLS_SSL_PROTO_TLS1) -#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1 -#else -#if defined(MBEDTLS_SSL_PROTO_SSL3) -#define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_0 -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ -#endif /* MBEDTLS_SSL_PROTO_TLS1 */ -#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */ -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -/* Shorthand for restartable ECC */ -#if defined(MBEDTLS_ECP_RESTARTABLE) && \ - defined(MBEDTLS_SSL_CLI_C) && \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) -#define MBEDTLS_SSL__ECP_RESTARTABLE -#endif - -#define MBEDTLS_SSL_INITIAL_HANDSHAKE 0 -#define MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS 1 /* In progress */ -#define MBEDTLS_SSL_RENEGOTIATION_DONE 2 /* Done or aborted */ -#define MBEDTLS_SSL_RENEGOTIATION_PENDING 3 /* Requested (server only) */ - -/* - * DTLS retransmission states, see RFC 6347 4.2.4 - * - * The SENDING state is merged in PREPARING for initial sends, - * but is distinct for resends. - * - * Note: initial state is wrong for server, but is not used anyway. - */ -#define MBEDTLS_SSL_RETRANS_PREPARING 0 -#define MBEDTLS_SSL_RETRANS_SENDING 1 -#define MBEDTLS_SSL_RETRANS_WAITING 2 -#define MBEDTLS_SSL_RETRANS_FINISHED 3 - -/* - * Allow extra bytes for record, authentication and encryption overhead: - * counter (8) + header (5) + IV(16) + MAC (16-48) + padding (0-256) - * and allow for a maximum of 1024 of compression expansion if - * enabled. - */ -#if defined(MBEDTLS_ZLIB_SUPPORT) -#define MBEDTLS_SSL_COMPRESSION_ADD 1024 -#else -#define MBEDTLS_SSL_COMPRESSION_ADD 0 -#endif - -#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_MODE_CBC) -/* Ciphersuites using HMAC */ -#if defined(MBEDTLS_SHA512_C) -#define MBEDTLS_SSL_MAC_ADD 48 /* SHA-384 used for HMAC */ -#elif defined(MBEDTLS_SHA256_C) -#define MBEDTLS_SSL_MAC_ADD 32 /* SHA-256 used for HMAC */ -#else -#define MBEDTLS_SSL_MAC_ADD 20 /* SHA-1 used for HMAC */ -#endif -#else -/* AEAD ciphersuites: GCM and CCM use a 128 bits tag */ -#define MBEDTLS_SSL_MAC_ADD 16 -#endif - -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#define MBEDTLS_SSL_PADDING_ADD 256 -#else -#define MBEDTLS_SSL_PADDING_ADD 0 -#endif - -#define MBEDTLS_SSL_PAYLOAD_OVERHEAD ( MBEDTLS_SSL_COMPRESSION_ADD + \ - MBEDTLS_MAX_IV_LENGTH + \ - MBEDTLS_SSL_MAC_ADD + \ - MBEDTLS_SSL_PADDING_ADD \ - ) - -#define MBEDTLS_SSL_IN_PAYLOAD_LEN ( MBEDTLS_SSL_PAYLOAD_OVERHEAD + \ - ( MBEDTLS_SSL_IN_CONTENT_LEN ) ) - -#define MBEDTLS_SSL_OUT_PAYLOAD_LEN ( MBEDTLS_SSL_PAYLOAD_OVERHEAD + \ - ( MBEDTLS_SSL_OUT_CONTENT_LEN ) ) - -/* The maximum number of buffered handshake messages. */ -#define MBEDTLS_SSL_MAX_BUFFERED_HS 4 - -/* Maximum length we can advertise as our max content length for - RFC 6066 max_fragment_length extension negotiation purposes - (the lesser of both sizes, if they are unequal.) - */ -#define MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ( \ - (MBEDTLS_SSL_IN_CONTENT_LEN > MBEDTLS_SSL_OUT_CONTENT_LEN) \ - ? ( MBEDTLS_SSL_OUT_CONTENT_LEN ) \ - : ( MBEDTLS_SSL_IN_CONTENT_LEN ) \ - ) - -/* - * Check that we obey the standard's message size bounds - */ - -#if MBEDTLS_SSL_MAX_CONTENT_LEN > 16384 -#error "Bad configuration - record content too large." -#endif - -#if MBEDTLS_SSL_IN_CONTENT_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN -#error "Bad configuration - incoming record content should not be larger than MBEDTLS_SSL_MAX_CONTENT_LEN." -#endif - -#if MBEDTLS_SSL_OUT_CONTENT_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN -#error "Bad configuration - outgoing record content should not be larger than MBEDTLS_SSL_MAX_CONTENT_LEN." -#endif - -#if MBEDTLS_SSL_IN_PAYLOAD_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN + 2048 -#error "Bad configuration - incoming protected record payload too large." -#endif - -#if MBEDTLS_SSL_OUT_PAYLOAD_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN + 2048 -#error "Bad configuration - outgoing protected record payload too large." -#endif - -/* Calculate buffer sizes */ - -/* Note: Even though the TLS record header is only 5 bytes - long, we're internally using 8 bytes to store the - implicit sequence number. */ -#define MBEDTLS_SSL_HEADER_LEN 13 - -#define MBEDTLS_SSL_IN_BUFFER_LEN \ - ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_IN_PAYLOAD_LEN ) ) - -#define MBEDTLS_SSL_OUT_BUFFER_LEN \ - ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_OUT_PAYLOAD_LEN ) ) - -#ifdef MBEDTLS_ZLIB_SUPPORT -/* Compression buffer holds both IN and OUT buffers, so should be size of the larger */ -#define MBEDTLS_SSL_COMPRESS_BUFFER_LEN ( \ - ( MBEDTLS_SSL_IN_BUFFER_LEN > MBEDTLS_SSL_OUT_BUFFER_LEN ) \ - ? MBEDTLS_SSL_IN_BUFFER_LEN \ - : MBEDTLS_SSL_OUT_BUFFER_LEN \ - ) -#endif - -/* - * TLS extension flags (for extensions with outgoing ServerHello content - * that need it (e.g. for RENEGOTIATION_INFO the server already knows because - * of state of the renegotiation flag, so no indicator is required) - */ -#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT (1 << 0) -#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK (1 << 1) - -#ifdef __cplusplus -extern "C" { -#endif - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -/* - * Abstraction for a grid of allowed signature-hash-algorithm pairs. - */ -struct mbedtls_ssl_sig_hash_set_t -{ - /* At the moment, we only need to remember a single suitable - * hash algorithm per signature algorithm. As long as that's - * the case - and we don't need a general lookup function - - * we can implement the sig-hash-set as a map from signatures - * to hash algorithms. */ - mbedtls_md_type_t rsa; - mbedtls_md_type_t ecdsa; -}; -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -/* - * This structure contains the parameters only needed during handshake. - */ -struct mbedtls_ssl_handshake_params -{ - /* - * Handshake specific crypto variables - */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - mbedtls_ssl_sig_hash_set_t hash_algs; /*!< Set of suitable sig-hash pairs */ -#endif -#if defined(MBEDTLS_DHM_C) - mbedtls_dhm_context dhm_ctx; /*!< DHM key exchange */ -#endif -#if defined(MBEDTLS_ECDH_C) - mbedtls_ecdh_context ecdh_ctx; /*!< ECDH key exchange */ - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_ecc_curve_t ecdh_psa_curve; - psa_key_handle_t ecdh_psa_privkey; - unsigned char ecdh_psa_peerkey[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH]; - size_t ecdh_psa_peerkey_len; -#endif /* MBEDTLS_USE_PSA_CRYPTO */ -#endif /* MBEDTLS_ECDH_C */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - mbedtls_ecjpake_context ecjpake_ctx; /*!< EC J-PAKE key exchange */ -#if defined(MBEDTLS_SSL_CLI_C) - unsigned char *ecjpake_cache; /*!< Cache for ClientHello ext */ - size_t ecjpake_cache_len; /*!< Length of cached data */ -#endif -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - const mbedtls_ecp_curve_info **curves; /*!< Supported elliptic curves */ -#endif -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_key_handle_t psk_opaque; /*!< Opaque PSK from the callback */ -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - unsigned char *psk; /*!< PSK from the callback */ - size_t psk_len; /*!< Length of PSK from callback */ -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ -#if defined(MBEDTLS_X509_CRT_PARSE_C) - mbedtls_ssl_key_cert *key_cert; /*!< chosen key/cert pair (server) */ -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - int sni_authmode; /*!< authmode from SNI callback */ - mbedtls_ssl_key_cert *sni_key_cert; /*!< key/cert list from SNI */ - mbedtls_x509_crt *sni_ca_chain; /*!< trusted CAs from SNI callback */ - mbedtls_x509_crl *sni_ca_crl; /*!< trusted CAs CRLs from SNI */ -#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - int ecrs_enabled; /*!< Handshake supports EC restart? */ - mbedtls_x509_crt_restart_ctx ecrs_ctx; /*!< restart context */ - enum { /* this complements ssl->state with info on intra-state operations */ - ssl_ecrs_none = 0, /*!< nothing going on (yet) */ - ssl_ecrs_crt_verify, /*!< Certificate: crt_verify() */ - ssl_ecrs_ske_start_processing, /*!< ServerKeyExchange: pk_verify() */ - ssl_ecrs_cke_ecdh_calc_secret, /*!< ClientKeyExchange: ECDH step 2 */ - ssl_ecrs_crt_vrfy_sign, /*!< CertificateVerify: pk_sign() */ - } ecrs_state; /*!< current (or last) operation */ - mbedtls_x509_crt *ecrs_peer_cert; /*!< The peer's CRT chain. */ - size_t ecrs_n; /*!< place for saving a length */ -#endif -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_pk_context peer_pubkey; /*!< The public key from the peer. */ -#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - unsigned int out_msg_seq; /*!< Outgoing handshake sequence number */ - unsigned int in_msg_seq; /*!< Incoming handshake sequence number */ - - unsigned char *verify_cookie; /*!< Cli: HelloVerifyRequest cookie - Srv: unused */ - unsigned char verify_cookie_len; /*!< Cli: cookie length - Srv: flag for sending a cookie */ - - uint32_t retransmit_timeout; /*!< Current value of timeout */ - unsigned char retransmit_state; /*!< Retransmission state */ - mbedtls_ssl_flight_item *flight; /*!< Current outgoing flight */ - mbedtls_ssl_flight_item *cur_msg; /*!< Current message in flight */ - unsigned char *cur_msg_p; /*!< Position in current message */ - unsigned int in_flight_start_seq; /*!< Minimum message sequence in the - flight being received */ - mbedtls_ssl_transform *alt_transform_out; /*!< Alternative transform for - resending messages */ - unsigned char alt_out_ctr[8]; /*!< Alternative record epoch/counter - for resending messages */ - - struct - { - size_t total_bytes_buffered; /*!< Cumulative size of heap allocated - * buffers used for message buffering. */ - - uint8_t seen_ccs; /*!< Indicates if a CCS message has - * been seen in the current flight. */ - - struct mbedtls_ssl_hs_buffer - { - unsigned is_valid : 1; - unsigned is_fragmented : 1; - unsigned is_complete : 1; - unsigned char *data; - size_t data_len; - } hs[MBEDTLS_SSL_MAX_BUFFERED_HS]; - - struct - { - unsigned char *data; - size_t len; - unsigned epoch; - } future_record; - - } buffering; - - uint16_t mtu; /*!< Handshake mtu, used to fragment outgoing messages */ -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - /* - * Checksum contexts - */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_context fin_md5; - mbedtls_sha1_context fin_sha1; -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_operation_t fin_sha256_psa; -#else - mbedtls_sha256_context fin_sha256; -#endif -#endif -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_operation_t fin_sha384_psa; -#else - mbedtls_sha512_context fin_sha512; -#endif -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - - void (*update_checksum)(mbedtls_ssl_context *, const unsigned char *, size_t); - void (*calc_verify)(mbedtls_ssl_context *, unsigned char *); - void (*calc_finished)(mbedtls_ssl_context *, unsigned char *, int); - int (*tls_prf)(const unsigned char *, size_t, const char *, - const unsigned char *, size_t, - unsigned char *, size_t); - - size_t pmslen; /*!< premaster length */ - - unsigned char randbytes[64]; /*!< random bytes */ - unsigned char premaster[MBEDTLS_PREMASTER_SIZE]; - /*!< premaster secret */ - - int resume; /*!< session resume indicator*/ - int max_major_ver; /*!< max. major version client*/ - int max_minor_ver; /*!< max. minor version client*/ - int cli_exts; /*!< client extension presence*/ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - int new_session_ticket; /*!< use NewSessionTicket? */ -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - int extended_ms; /*!< use Extended Master Secret? */ -#endif - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - unsigned int async_in_progress : 1; /*!< an asynchronous operation is in progress */ -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - /** Asynchronous operation context. This field is meant for use by the - * asynchronous operation callbacks (mbedtls_ssl_config::f_async_sign_start, - * mbedtls_ssl_config::f_async_decrypt_start, - * mbedtls_ssl_config::f_async_resume, mbedtls_ssl_config::f_async_cancel). - * The library does not use it internally. */ - void *user_async_ctx; -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ -}; - -typedef struct mbedtls_ssl_hs_buffer mbedtls_ssl_hs_buffer; - -/* - * This structure contains a full set of runtime transform parameters - * either in negotiation or active. - */ -struct mbedtls_ssl_transform -{ - /* - * Session specific crypto layer - */ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info; - /*!< Chosen cipersuite_info */ - unsigned int keylen; /*!< symmetric key length (bytes) */ - size_t minlen; /*!< min. ciphertext length */ - size_t ivlen; /*!< IV length */ - size_t fixed_ivlen; /*!< Fixed part of IV (AEAD) */ - size_t maclen; /*!< MAC length */ - - unsigned char iv_enc[16]; /*!< IV (encryption) */ - unsigned char iv_dec[16]; /*!< IV (decryption) */ - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - /* Needed only for SSL v3.0 secret */ - unsigned char mac_enc[20]; /*!< SSL v3.0 secret (enc) */ - unsigned char mac_dec[20]; /*!< SSL v3.0 secret (dec) */ -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - - mbedtls_md_context_t md_ctx_enc; /*!< MAC (encryption) */ - mbedtls_md_context_t md_ctx_dec; /*!< MAC (decryption) */ - - mbedtls_cipher_context_t cipher_ctx_enc; /*!< encryption context */ - mbedtls_cipher_context_t cipher_ctx_dec; /*!< decryption context */ - - /* - * Session specific compression layer - */ -#if defined(MBEDTLS_ZLIB_SUPPORT) - z_stream ctx_deflate; /*!< compression context */ - z_stream ctx_inflate; /*!< decompression context */ -#endif -}; - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/* - * List of certificate + private key pairs - */ -struct mbedtls_ssl_key_cert -{ - mbedtls_x509_crt *cert; /*!< cert */ - mbedtls_pk_context *key; /*!< private key */ - mbedtls_ssl_key_cert *next; /*!< next key/cert pair */ -}; -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) -/* - * List of handshake messages kept around for resending - */ -struct mbedtls_ssl_flight_item -{ - unsigned char *p; /*!< message, including handshake headers */ - size_t len; /*!< length of p */ - unsigned char type; /*!< type of the message: handshake or CCS */ - mbedtls_ssl_flight_item *next; /*!< next handshake message(s) */ -}; -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - -/* Find an entry in a signature-hash set matching a given hash algorithm. */ -mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_pk_type_t sig_alg ); -/* Add a signature-hash-pair to a signature-hash set */ -void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_pk_type_t sig_alg, - mbedtls_md_type_t md_alg ); -/* Allow exactly one hash algorithm for each signature. */ -void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_md_type_t md_alg ); - -/* Setup an empty signature-hash set */ -static inline void mbedtls_ssl_sig_hash_set_init( mbedtls_ssl_sig_hash_set_t *set ) -{ - mbedtls_ssl_sig_hash_set_const_hash( set, MBEDTLS_MD_NONE ); -} - -#endif /* MBEDTLS_SSL_PROTO_TLS1_2) && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -/** - * \brief Free referenced items in an SSL transform context and clear - * memory - * - * \param transform SSL transform context - */ -void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform ); - -/** - * \brief Free referenced items in an SSL handshake context and clear - * memory - * - * \param ssl SSL context - */ -void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl ); - -int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl ); -void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl ); - -int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl ); - -void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ); - -int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl ); -void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl ); - -/** - * \brief Update record layer - * - * This function roughly separates the implementation - * of the logic of (D)TLS from the implementation - * of the secure transport. - * - * \param ssl The SSL context to use. - * \param update_hs_digest This indicates if the handshake digest - * should be automatically updated in case - * a handshake message is found. - * - * \return 0 or non-zero error code. - * - * \note A clarification on what is called 'record layer' here - * is in order, as many sensible definitions are possible: - * - * The record layer takes as input an untrusted underlying - * transport (stream or datagram) and transforms it into - * a serially multiplexed, secure transport, which - * conceptually provides the following: - * - * (1) Three datagram based, content-agnostic transports - * for handshake, alert and CCS messages. - * (2) One stream- or datagram-based transport - * for application data. - * (3) Functionality for changing the underlying transform - * securing the contents. - * - * The interface to this functionality is given as follows: - * - * a Updating - * [Currently implemented by mbedtls_ssl_read_record] - * - * Check if and on which of the four 'ports' data is pending: - * Nothing, a controlling datagram of type (1), or application - * data (2). In any case data is present, internal buffers - * provide access to the data for the user to process it. - * Consumption of type (1) datagrams is done automatically - * on the next update, invalidating that the internal buffers - * for previous datagrams, while consumption of application - * data (2) is user-controlled. - * - * b Reading of application data - * [Currently manual adaption of ssl->in_offt pointer] - * - * As mentioned in the last paragraph, consumption of data - * is different from the automatic consumption of control - * datagrams (1) because application data is treated as a stream. - * - * c Tracking availability of application data - * [Currently manually through decreasing ssl->in_msglen] - * - * For efficiency and to retain datagram semantics for - * application data in case of DTLS, the record layer - * provides functionality for checking how much application - * data is still available in the internal buffer. - * - * d Changing the transformation securing the communication. - * - * Given an opaque implementation of the record layer in the - * above sense, it should be possible to implement the logic - * of (D)TLS on top of it without the need to know anything - * about the record layer's internals. This is done e.g. - * in all the handshake handling functions, and in the - * application data reading function mbedtls_ssl_read. - * - * \note The above tries to give a conceptual picture of the - * record layer, but the current implementation deviates - * from it in some places. For example, our implementation of - * the update functionality through mbedtls_ssl_read_record - * discards datagrams depending on the current state, which - * wouldn't fall under the record layer's responsibility - * following the above definition. - * - */ -int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl, - unsigned update_hs_digest ); -int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want ); - -int mbedtls_ssl_write_handshake_msg( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush ); -int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl ); - -int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ); - -int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl ); - -int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ); - -void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl, - const mbedtls_ssl_ciphersuite_t *ciphersuite_info ); - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex ); -#endif - -#if defined(MBEDTLS_PK_C) -unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk ); -unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type ); -mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig ); -#endif - -mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash ); -unsigned char mbedtls_ssl_hash_from_md_alg( int md ); -int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md ); - -#if defined(MBEDTLS_ECP_C) -int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id ); -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl, - mbedtls_md_type_t md ); -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -static inline mbedtls_pk_context *mbedtls_ssl_own_key( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_key_cert *key_cert; - - if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL ) - key_cert = ssl->handshake->key_cert; - else - key_cert = ssl->conf->key_cert; - - return( key_cert == NULL ? NULL : key_cert->key ); -} - -static inline mbedtls_x509_crt *mbedtls_ssl_own_cert( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_key_cert *key_cert; - - if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL ) - key_cert = ssl->handshake->key_cert; - else - key_cert = ssl->conf->key_cert; - - return( key_cert == NULL ? NULL : key_cert->cert ); -} - -/* - * Check usage of a certificate wrt extensions: - * keyUsage, extendedKeyUsage (later), and nSCertType (later). - * - * Warning: cert_endpoint is the endpoint of the cert (ie, of our peer when we - * check a cert we received from them)! - * - * Return 0 if everything is OK, -1 if not. - */ -int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, - const mbedtls_ssl_ciphersuite_t *ciphersuite, - int cert_endpoint, - uint32_t *flags ); -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -void mbedtls_ssl_write_version( int major, int minor, int transport, - unsigned char ver[2] ); -void mbedtls_ssl_read_version( int *major, int *minor, int transport, - const unsigned char ver[2] ); - -static inline size_t mbedtls_ssl_hdr_len( const mbedtls_ssl_context *ssl ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - return( 13 ); -#else - ((void) ssl); -#endif - return( 5 ); -} - -static inline size_t mbedtls_ssl_hs_hdr_len( const mbedtls_ssl_context *ssl ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - return( 12 ); -#else - ((void) ssl); -#endif - return( 4 ); -} - -#if defined(MBEDTLS_SSL_PROTO_DTLS) -void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl ); -void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_resend( mbedtls_ssl_context *ssl ); -int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl ); -#endif - -/* Visible for testing purposes only */ -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) -int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context *ssl ); -void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl ); -#endif - -int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst, - const mbedtls_ssl_session *src ); - -/* constant-time buffer comparison */ -static inline int mbedtls_ssl_safer_memcmp( const void *a, const void *b, size_t n ) -{ - size_t i; - volatile const unsigned char *A = (volatile const unsigned char *) a; - volatile const unsigned char *B = (volatile const unsigned char *) b; - volatile unsigned char diff = 0; - - for( i = 0; i < n; i++ ) - { - /* Read volatile data in order before computing diff. - * This avoids IAR compiler warning: - * 'the order of volatile accesses is undefined ..' */ - unsigned char x = A[i], y = B[i]; - diff |= x ^ y; - } - - return( diff ); -} - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) -int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl, - unsigned char *output, - unsigned char *data, size_t data_len ); -#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ - MBEDTLS_SSL_PROTO_TLS1_1 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) -/* The hash buffer must have at least MBEDTLS_MD_MAX_SIZE bytes of length. */ -int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl, - unsigned char *hash, size_t *hashlen, - unsigned char *data, size_t data_len, - mbedtls_md_type_t md_alg ); -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ - MBEDTLS_SSL_PROTO_TLS1_2 */ - -#ifdef __cplusplus -} -#endif - -#endif /* ssl_internal.h */ diff --git a/include/mbedtls/ssl_ticket.h b/include/mbedtls/ssl_ticket.h deleted file mode 100644 index 774a007a9..000000000 --- a/include/mbedtls/ssl_ticket.h +++ /dev/null @@ -1,142 +0,0 @@ -/** - * \file ssl_ticket.h - * - * \brief TLS server ticket callbacks implementation - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_SSL_TICKET_H -#define MBEDTLS_SSL_TICKET_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -/* - * This implementation of the session ticket callbacks includes key - * management, rotating the keys periodically in order to preserve forward - * secrecy, when MBEDTLS_HAVE_TIME is defined. - */ - -#include "ssl.h" -#include "cipher.h" - -#if defined(MBEDTLS_THREADING_C) -#include "threading.h" -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief Information for session ticket protection - */ -typedef struct mbedtls_ssl_ticket_key -{ - unsigned char name[4]; /*!< random key identifier */ - uint32_t generation_time; /*!< key generation timestamp (seconds) */ - mbedtls_cipher_context_t ctx; /*!< context for auth enc/decryption */ -} -mbedtls_ssl_ticket_key; - -/** - * \brief Context for session ticket handling functions - */ -typedef struct mbedtls_ssl_ticket_context -{ - mbedtls_ssl_ticket_key keys[2]; /*!< ticket protection keys */ - unsigned char active; /*!< index of the currently active key */ - - uint32_t ticket_lifetime; /*!< lifetime of tickets in seconds */ - - /** Callback for getting (pseudo-)random numbers */ - int (*f_rng)(void *, unsigned char *, size_t); - void *p_rng; /*!< context for the RNG function */ - -#if defined(MBEDTLS_THREADING_C) - mbedtls_threading_mutex_t mutex; -#endif -} -mbedtls_ssl_ticket_context; - -/** - * \brief Initialize a ticket context. - * (Just make it ready for mbedtls_ssl_ticket_setup() - * or mbedtls_ssl_ticket_free().) - * - * \param ctx Context to be initialized - */ -void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx ); - -/** - * \brief Prepare context to be actually used - * - * \param ctx Context to be set up - * \param f_rng RNG callback function - * \param p_rng RNG callback context - * \param cipher AEAD cipher to use for ticket protection. - * Recommended value: MBEDTLS_CIPHER_AES_256_GCM. - * \param lifetime Tickets lifetime in seconds - * Recommended value: 86400 (one day). - * - * \note It is highly recommended to select a cipher that is at - * least as strong as the the strongest ciphersuite - * supported. Usually that means a 256-bit key. - * - * \note The lifetime of the keys is twice the lifetime of tickets. - * It is recommended to pick a reasonnable lifetime so as not - * to negate the benefits of forward secrecy. - * - * \return 0 if successful, - * or a specific MBEDTLS_ERR_XXX error code - */ -int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx, - int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, - mbedtls_cipher_type_t cipher, - uint32_t lifetime ); - -/** - * \brief Implementation of the ticket write callback - * - * \note See \c mbedtls_ssl_ticket_write_t for description - */ -mbedtls_ssl_ticket_write_t mbedtls_ssl_ticket_write; - -/** - * \brief Implementation of the ticket parse callback - * - * \note See \c mbedtls_ssl_ticket_parse_t for description - */ -mbedtls_ssl_ticket_parse_t mbedtls_ssl_ticket_parse; - -/** - * \brief Free a context's content and zeroize it. - * - * \param ctx Context to be cleaned up - */ -void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx ); - -#ifdef __cplusplus -} -#endif - -#endif /* ssl_ticket.h */ diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h deleted file mode 100644 index b63e864e3..000000000 --- a/include/mbedtls/x509.h +++ /dev/null @@ -1,339 +0,0 @@ -/** - * \file x509.h - * - * \brief X.509 generic defines and structures - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_X509_H -#define MBEDTLS_X509_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "asn1.h" -#include "pk.h" - -#if defined(MBEDTLS_RSA_C) -#include "rsa.h" -#endif - -/** - * \addtogroup x509_module - * \{ - */ - -#if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA) -/** - * Maximum number of intermediate CAs in a verification chain. - * That is, maximum length of the chain, excluding the end-entity certificate - * and the trusted root certificate. - * - * Set this to a low value to prevent an adversary from making you waste - * resources verifying an overlong certificate chain. - */ -#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 -#endif - -/** - * \name X509 Error codes - * \{ - */ -#define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE -0x2080 /**< Unavailable feature, e.g. RSA hashing/encryption combination. */ -#define MBEDTLS_ERR_X509_UNKNOWN_OID -0x2100 /**< Requested OID is unknown. */ -#define MBEDTLS_ERR_X509_INVALID_FORMAT -0x2180 /**< The CRT/CRL/CSR format is invalid, e.g. different type expected. */ -#define MBEDTLS_ERR_X509_INVALID_VERSION -0x2200 /**< The CRT/CRL/CSR version element is invalid. */ -#define MBEDTLS_ERR_X509_INVALID_SERIAL -0x2280 /**< The serial tag or value is invalid. */ -#define MBEDTLS_ERR_X509_INVALID_ALG -0x2300 /**< The algorithm tag or value is invalid. */ -#define MBEDTLS_ERR_X509_INVALID_NAME -0x2380 /**< The name tag or value is invalid. */ -#define MBEDTLS_ERR_X509_INVALID_DATE -0x2400 /**< The date tag or value is invalid. */ -#define MBEDTLS_ERR_X509_INVALID_SIGNATURE -0x2480 /**< The signature tag or value invalid. */ -#define MBEDTLS_ERR_X509_INVALID_EXTENSIONS -0x2500 /**< The extension tag or value is invalid. */ -#define MBEDTLS_ERR_X509_UNKNOWN_VERSION -0x2580 /**< CRT/CRL/CSR has an unsupported version number. */ -#define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG -0x2600 /**< Signature algorithm (oid) is unsupported. */ -#define MBEDTLS_ERR_X509_SIG_MISMATCH -0x2680 /**< Signature algorithms do not match. (see \c ::mbedtls_x509_crt sig_oid) */ -#define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED -0x2700 /**< Certificate verification failed, e.g. CRL, CA or signature check failed. */ -#define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT -0x2780 /**< Format not recognized as DER or PEM. */ -#define MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800 /**< Input invalid. */ -#define MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880 /**< Allocation of memory failed. */ -#define MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900 /**< Read/write of file failed. */ -#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980 /**< Destination buffer is too small. */ -#define MBEDTLS_ERR_X509_FATAL_ERROR -0x3000 /**< A fatal error occurred, eg the chain is too long or the vrfy callback failed. */ -/* \} name */ - -/** - * \name X509 Verify codes - * \{ - */ -/* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */ -#define MBEDTLS_X509_BADCERT_EXPIRED 0x01 /**< The certificate validity has expired. */ -#define MBEDTLS_X509_BADCERT_REVOKED 0x02 /**< The certificate has been revoked (is on a CRL). */ -#define MBEDTLS_X509_BADCERT_CN_MISMATCH 0x04 /**< The certificate Common Name (CN) does not match with the expected CN. */ -#define MBEDTLS_X509_BADCERT_NOT_TRUSTED 0x08 /**< The certificate is not correctly signed by the trusted CA. */ -#define MBEDTLS_X509_BADCRL_NOT_TRUSTED 0x10 /**< The CRL is not correctly signed by the trusted CA. */ -#define MBEDTLS_X509_BADCRL_EXPIRED 0x20 /**< The CRL is expired. */ -#define MBEDTLS_X509_BADCERT_MISSING 0x40 /**< Certificate was missing. */ -#define MBEDTLS_X509_BADCERT_SKIP_VERIFY 0x80 /**< Certificate verification was skipped. */ -#define MBEDTLS_X509_BADCERT_OTHER 0x0100 /**< Other reason (can be used by verify callback) */ -#define MBEDTLS_X509_BADCERT_FUTURE 0x0200 /**< The certificate validity starts in the future. */ -#define MBEDTLS_X509_BADCRL_FUTURE 0x0400 /**< The CRL is from the future */ -#define MBEDTLS_X509_BADCERT_KEY_USAGE 0x0800 /**< Usage does not match the keyUsage extension. */ -#define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE 0x1000 /**< Usage does not match the extendedKeyUsage extension. */ -#define MBEDTLS_X509_BADCERT_NS_CERT_TYPE 0x2000 /**< Usage does not match the nsCertType extension. */ -#define MBEDTLS_X509_BADCERT_BAD_MD 0x4000 /**< The certificate is signed with an unacceptable hash. */ -#define MBEDTLS_X509_BADCERT_BAD_PK 0x8000 /**< The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA). */ -#define MBEDTLS_X509_BADCERT_BAD_KEY 0x010000 /**< The certificate is signed with an unacceptable key (eg bad curve, RSA too short). */ -#define MBEDTLS_X509_BADCRL_BAD_MD 0x020000 /**< The CRL is signed with an unacceptable hash. */ -#define MBEDTLS_X509_BADCRL_BAD_PK 0x040000 /**< The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA). */ -#define MBEDTLS_X509_BADCRL_BAD_KEY 0x080000 /**< The CRL is signed with an unacceptable key (eg bad curve, RSA too short). */ - -/* \} name */ -/* \} addtogroup x509_module */ - -/* - * X.509 v3 Key Usage Extension flags - * Reminder: update x509_info_key_usage() when adding new flags. - */ -#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */ -#define MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */ -#define MBEDTLS_X509_KU_KEY_ENCIPHERMENT (0x20) /* bit 2 */ -#define MBEDTLS_X509_KU_DATA_ENCIPHERMENT (0x10) /* bit 3 */ -#define MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */ -#define MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */ -#define MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */ -#define MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */ -#define MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */ - -/* - * Netscape certificate types - * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html) - */ - -#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT (0x80) /* bit 0 */ -#define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER (0x40) /* bit 1 */ -#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL (0x20) /* bit 2 */ -#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING (0x10) /* bit 3 */ -#define MBEDTLS_X509_NS_CERT_TYPE_RESERVED (0x08) /* bit 4 */ -#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA (0x04) /* bit 5 */ -#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA (0x02) /* bit 6 */ -#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA (0x01) /* bit 7 */ - -/* - * X.509 extension types - * - * Comments refer to the status for using certificates. Status can be - * different for writing certificates or reading CRLs or CSRs. - * - * Those are defined in oid.h as oid.c needs them in a data structure. Since - * these were previously defined here, let's have aliases for compatibility. - */ -#define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER -#define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER -#define MBEDTLS_X509_EXT_KEY_USAGE MBEDTLS_OID_X509_EXT_KEY_USAGE -#define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES -#define MBEDTLS_X509_EXT_POLICY_MAPPINGS MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS -#define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME /* Supported (DNS) */ -#define MBEDTLS_X509_EXT_ISSUER_ALT_NAME MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME -#define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS -#define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS /* Supported */ -#define MBEDTLS_X509_EXT_NAME_CONSTRAINTS MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS -#define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS -#define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE -#define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS -#define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY -#define MBEDTLS_X509_EXT_FRESHEST_CRL MBEDTLS_OID_X509_EXT_FRESHEST_CRL -#define MBEDTLS_X509_EXT_NS_CERT_TYPE MBEDTLS_OID_X509_EXT_NS_CERT_TYPE - -/* - * Storage format identifiers - * Recognized formats: PEM and DER - */ -#define MBEDTLS_X509_FORMAT_DER 1 -#define MBEDTLS_X509_FORMAT_PEM 2 - -#define MBEDTLS_X509_MAX_DN_NAME_SIZE 256 /**< Maximum value size of a DN entry */ - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \addtogroup x509_module - * \{ */ - -/** - * \name Structures for parsing X.509 certificates, CRLs and CSRs - * \{ - */ - -/** - * Type-length-value structure that allows for ASN1 using DER. - */ -typedef mbedtls_asn1_buf mbedtls_x509_buf; - -/** - * Container for ASN1 bit strings. - */ -typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring; - -/** - * Container for ASN1 named information objects. - * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.). - */ -typedef mbedtls_asn1_named_data mbedtls_x509_name; - -/** - * Container for a sequence of ASN.1 items - */ -typedef mbedtls_asn1_sequence mbedtls_x509_sequence; - -/** Container for date and time (precision in seconds). */ -typedef struct mbedtls_x509_time -{ - int year, mon, day; /**< Date. */ - int hour, min, sec; /**< Time. */ -} -mbedtls_x509_time; - -/** \} name Structures for parsing X.509 certificates, CRLs and CSRs */ -/** \} addtogroup x509_module */ - -/** - * \brief Store the certificate DN in printable form into buf; - * no more than size characters will be written. - * - * \param buf Buffer to write to - * \param size Maximum size of buffer - * \param dn The X509 name to represent - * - * \return The length of the string written (not including the - * terminated nul byte), or a negative error code. - */ -int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn ); - -/** - * \brief Store the certificate serial in printable form into buf; - * no more than size characters will be written. - * - * \param buf Buffer to write to - * \param size Maximum size of buffer - * \param serial The X509 serial to represent - * - * \return The length of the string written (not including the - * terminated nul byte), or a negative error code. - */ -int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial ); - -/** - * \brief Check a given mbedtls_x509_time against the system time - * and tell if it's in the past. - * - * \note Intended usage is "if( is_past( valid_to ) ) ERROR". - * Hence the return value of 1 if on internal errors. - * - * \param to mbedtls_x509_time to check - * - * \return 1 if the given time is in the past or an error occurred, - * 0 otherwise. - */ -int mbedtls_x509_time_is_past( const mbedtls_x509_time *to ); - -/** - * \brief Check a given mbedtls_x509_time against the system time - * and tell if it's in the future. - * - * \note Intended usage is "if( is_future( valid_from ) ) ERROR". - * Hence the return value of 1 if on internal errors. - * - * \param from mbedtls_x509_time to check - * - * \return 1 if the given time is in the future or an error occurred, - * 0 otherwise. - */ -int mbedtls_x509_time_is_future( const mbedtls_x509_time *from ); - -#if defined(MBEDTLS_SELF_TEST) - -/** - * \brief Checkup routine - * - * \return 0 if successful, or 1 if the test failed - */ -int mbedtls_x509_self_test( int verbose ); - -#endif /* MBEDTLS_SELF_TEST */ - -/* - * Internal module functions. You probably do not want to use these unless you - * know you do. - */ -int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end, - mbedtls_x509_name *cur ); -int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *alg ); -int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *alg, mbedtls_x509_buf *params ); -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) -int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params, - mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md, - int *salt_len ); -#endif -int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig ); -int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params, - mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg, - void **sig_opts ); -int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end, - mbedtls_x509_time *t ); -int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *serial ); -int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *ext, int tag ); -int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid, - mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, - const void *sig_opts ); -int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name ); -int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name ); -int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len, - int critical, const unsigned char *val, - size_t val_len ); -int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start, - mbedtls_asn1_named_data *first ); -int mbedtls_x509_write_names( unsigned char **p, unsigned char *start, - mbedtls_asn1_named_data *first ); -int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start, - const char *oid, size_t oid_len, - unsigned char *sig, size_t size ); - -#define MBEDTLS_X509_SAFE_SNPRINTF \ - do { \ - if( ret < 0 || (size_t) ret >= n ) \ - return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); \ - \ - n -= (size_t) ret; \ - p += (size_t) ret; \ - } while( 0 ) - -#ifdef __cplusplus -} -#endif - -#endif /* x509.h */ diff --git a/include/mbedtls/x509_crl.h b/include/mbedtls/x509_crl.h deleted file mode 100644 index fa838d68c..000000000 --- a/include/mbedtls/x509_crl.h +++ /dev/null @@ -1,174 +0,0 @@ -/** - * \file x509_crl.h - * - * \brief X.509 certificate revocation list parsing - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_X509_CRL_H -#define MBEDTLS_X509_CRL_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "x509.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \addtogroup x509_module - * \{ */ - -/** - * \name Structures and functions for parsing CRLs - * \{ - */ - -/** - * Certificate revocation list entry. - * Contains the CA-specific serial numbers and revocation dates. - */ -typedef struct mbedtls_x509_crl_entry -{ - mbedtls_x509_buf raw; - - mbedtls_x509_buf serial; - - mbedtls_x509_time revocation_date; - - mbedtls_x509_buf entry_ext; - - struct mbedtls_x509_crl_entry *next; -} -mbedtls_x509_crl_entry; - -/** - * Certificate revocation list structure. - * Every CRL may have multiple entries. - */ -typedef struct mbedtls_x509_crl -{ - mbedtls_x509_buf raw; /**< The raw certificate data (DER). */ - mbedtls_x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */ - - int version; /**< CRL version (1=v1, 2=v2) */ - mbedtls_x509_buf sig_oid; /**< CRL signature type identifier */ - - mbedtls_x509_buf issuer_raw; /**< The raw issuer data (DER). */ - - mbedtls_x509_name issuer; /**< The parsed issuer data (named information object). */ - - mbedtls_x509_time this_update; - mbedtls_x509_time next_update; - - mbedtls_x509_crl_entry entry; /**< The CRL entries containing the certificate revocation times for this CA. */ - - mbedtls_x509_buf crl_ext; - - mbedtls_x509_buf sig_oid2; - mbedtls_x509_buf sig; - mbedtls_md_type_t sig_md; /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ - mbedtls_pk_type_t sig_pk; /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ - void *sig_opts; /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ - - struct mbedtls_x509_crl *next; -} -mbedtls_x509_crl; - -/** - * \brief Parse a DER-encoded CRL and append it to the chained list - * - * \param chain points to the start of the chain - * \param buf buffer holding the CRL data in DER format - * \param buflen size of the buffer - * (including the terminating null byte for PEM data) - * - * \return 0 if successful, or a specific X509 or PEM error code - */ -int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain, - const unsigned char *buf, size_t buflen ); -/** - * \brief Parse one or more CRLs and append them to the chained list - * - * \note Multiple CRLs are accepted only if using PEM format - * - * \param chain points to the start of the chain - * \param buf buffer holding the CRL data in PEM or DER format - * \param buflen size of the buffer - * (including the terminating null byte for PEM data) - * - * \return 0 if successful, or a specific X509 or PEM error code - */ -int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen ); - -#if defined(MBEDTLS_FS_IO) -/** - * \brief Load one or more CRLs and append them to the chained list - * - * \note Multiple CRLs are accepted only if using PEM format - * - * \param chain points to the start of the chain - * \param path filename to read the CRLs from (in PEM or DER encoding) - * - * \return 0 if successful, or a specific X509 or PEM error code - */ -int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path ); -#endif /* MBEDTLS_FS_IO */ - -/** - * \brief Returns an informational string about the CRL. - * - * \param buf Buffer to write to - * \param size Maximum size of buffer - * \param prefix A line prefix - * \param crl The X509 CRL to represent - * - * \return The length of the string written (not including the - * terminated nul byte), or a negative error code. - */ -int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix, - const mbedtls_x509_crl *crl ); - -/** - * \brief Initialize a CRL (chain) - * - * \param crl CRL chain to initialize - */ -void mbedtls_x509_crl_init( mbedtls_x509_crl *crl ); - -/** - * \brief Unallocate all CRL data - * - * \param crl CRL chain to free - */ -void mbedtls_x509_crl_free( mbedtls_x509_crl *crl ); - -/* \} name */ -/* \} addtogroup x509_module */ - -#ifdef __cplusplus -} -#endif - -#endif /* mbedtls_x509_crl.h */ diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h deleted file mode 100644 index eea263201..000000000 --- a/include/mbedtls/x509_crt.h +++ /dev/null @@ -1,921 +0,0 @@ -/** - * \file x509_crt.h - * - * \brief X.509 certificate parsing and writing - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_X509_CRT_H -#define MBEDTLS_X509_CRT_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "x509.h" -#include "x509_crl.h" - -/** - * \addtogroup x509_module - * \{ - */ - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \name Structures and functions for parsing and writing X.509 certificates - * \{ - */ - -/** - * Container for an X.509 certificate. The certificate may be chained. - */ -typedef struct mbedtls_x509_crt -{ - int own_buffer; /**< Indicates if \c raw is owned - * by the structure or not. */ - mbedtls_x509_buf raw; /**< The raw certificate data (DER). */ - mbedtls_x509_buf tbs; /**< The raw certificate body (DER). The part that is To Be Signed. */ - - int version; /**< The X.509 version. (1=v1, 2=v2, 3=v3) */ - mbedtls_x509_buf serial; /**< Unique id for certificate issued by a specific CA. */ - mbedtls_x509_buf sig_oid; /**< Signature algorithm, e.g. sha1RSA */ - - mbedtls_x509_buf issuer_raw; /**< The raw issuer data (DER). Used for quick comparison. */ - mbedtls_x509_buf subject_raw; /**< The raw subject data (DER). Used for quick comparison. */ - - mbedtls_x509_name issuer; /**< The parsed issuer data (named information object). */ - mbedtls_x509_name subject; /**< The parsed subject data (named information object). */ - - mbedtls_x509_time valid_from; /**< Start time of certificate validity. */ - mbedtls_x509_time valid_to; /**< End time of certificate validity. */ - - mbedtls_x509_buf pk_raw; - mbedtls_pk_context pk; /**< Container for the public key context. */ - - mbedtls_x509_buf issuer_id; /**< Optional X.509 v2/v3 issuer unique identifier. */ - mbedtls_x509_buf subject_id; /**< Optional X.509 v2/v3 subject unique identifier. */ - mbedtls_x509_buf v3_ext; /**< Optional X.509 v3 extensions. */ - mbedtls_x509_sequence subject_alt_names; /**< Optional list of Subject Alternative Names (Only dNSName supported). */ - - int ext_types; /**< Bit string containing detected and parsed extensions */ - int ca_istrue; /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */ - int max_pathlen; /**< Optional Basic Constraint extension value: The maximum path length to the root certificate. Path length is 1 higher than RFC 5280 'meaning', so 1+ */ - - unsigned int key_usage; /**< Optional key usage extension value: See the values in x509.h */ - - mbedtls_x509_sequence ext_key_usage; /**< Optional list of extended key usage OIDs. */ - - unsigned char ns_cert_type; /**< Optional Netscape certificate type extension value: See the values in x509.h */ - - mbedtls_x509_buf sig; /**< Signature: hash of the tbs part signed with the private key. */ - mbedtls_md_type_t sig_md; /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ - mbedtls_pk_type_t sig_pk; /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ - void *sig_opts; /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ - - struct mbedtls_x509_crt *next; /**< Next certificate in the CA-chain. */ -} -mbedtls_x509_crt; - -/** - * Build flag from an algorithm/curve identifier (pk, md, ecp) - * Since 0 is always XXX_NONE, ignore it. - */ -#define MBEDTLS_X509_ID_FLAG( id ) ( 1 << ( id - 1 ) ) - -/** - * Security profile for certificate verification. - * - * All lists are bitfields, built by ORing flags from MBEDTLS_X509_ID_FLAG(). - */ -typedef struct mbedtls_x509_crt_profile -{ - uint32_t allowed_mds; /**< MDs for signatures */ - uint32_t allowed_pks; /**< PK algs for signatures */ - uint32_t allowed_curves; /**< Elliptic curves for ECDSA */ - uint32_t rsa_min_bitlen; /**< Minimum size for RSA keys */ -} -mbedtls_x509_crt_profile; - -#define MBEDTLS_X509_CRT_VERSION_1 0 -#define MBEDTLS_X509_CRT_VERSION_2 1 -#define MBEDTLS_X509_CRT_VERSION_3 2 - -#define MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN 32 -#define MBEDTLS_X509_RFC5280_UTC_TIME_LEN 15 - -#if !defined( MBEDTLS_X509_MAX_FILE_PATH_LEN ) -#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512 -#endif - -/** - * Container for writing a certificate (CRT) - */ -typedef struct mbedtls_x509write_cert -{ - int version; - mbedtls_mpi serial; - mbedtls_pk_context *subject_key; - mbedtls_pk_context *issuer_key; - mbedtls_asn1_named_data *subject; - mbedtls_asn1_named_data *issuer; - mbedtls_md_type_t md_alg; - char not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1]; - char not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1]; - mbedtls_asn1_named_data *extensions; -} -mbedtls_x509write_cert; - -/** - * Item in a verification chain: cert and flags for it - */ -typedef struct { - mbedtls_x509_crt *crt; - uint32_t flags; -} mbedtls_x509_crt_verify_chain_item; - -/** - * Max size of verification chain: end-entity + intermediates + trusted root - */ -#define MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE ( MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2 ) - -/** - * Verification chain as built by \c mbedtls_crt_verify_chain() - */ -typedef struct -{ - mbedtls_x509_crt_verify_chain_item items[MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE]; - unsigned len; - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - /* This stores the list of potential trusted signers obtained from - * the CA callback used for the CRT verification, if configured. - * We must track it somewhere because the callback passes its - * ownership to the caller. */ - mbedtls_x509_crt *trust_ca_cb_result; -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ -} mbedtls_x509_crt_verify_chain; - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - -/** - * \brief Context for resuming X.509 verify operations - */ -typedef struct -{ - /* for check_signature() */ - mbedtls_pk_restart_ctx pk; - - /* for find_parent_in() */ - mbedtls_x509_crt *parent; /* non-null iff parent_in in progress */ - mbedtls_x509_crt *fallback_parent; - int fallback_signature_is_good; - - /* for find_parent() */ - int parent_is_trusted; /* -1 if find_parent is not in progress */ - - /* for verify_chain() */ - enum { - x509_crt_rs_none, - x509_crt_rs_find_parent, - } in_progress; /* none if no operation is in progress */ - int self_cnt; - mbedtls_x509_crt_verify_chain ver_chain; - -} mbedtls_x509_crt_restart_ctx; - -#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ - -/* Now we can declare functions that take a pointer to that */ -typedef void mbedtls_x509_crt_restart_ctx; - -#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/** - * Default security profile. Should provide a good balance between security - * and compatibility with current deployments. - */ -extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default; - -/** - * Expected next default profile. Recommended for new deployments. - * Currently targets a 128-bit security level, except for RSA-2048. - */ -extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next; - -/** - * NSA Suite B profile. - */ -extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb; - -/** - * \brief Parse a single DER formatted certificate and add it - * to the end of the provided chained list. - * - * \param chain The pointer to the start of the CRT chain to attach to. - * When parsing the first CRT in a chain, this should point - * to an instance of ::mbedtls_x509_crt initialized through - * mbedtls_x509_crt_init(). - * \param buf The buffer holding the DER encoded certificate. - * \param buflen The size in Bytes of \p buf. - * - * \note This function makes an internal copy of the CRT buffer - * \p buf. In particular, \p buf may be destroyed or reused - * after this call returns. To avoid duplicating the CRT - * buffer (at the cost of stricter lifetime constraints), - * use mbedtls_x509_crt_parse_der_nocopy() instead. - * - * \return \c 0 if successful. - * \return A negative error code on failure. - */ -int mbedtls_x509_crt_parse_der( mbedtls_x509_crt *chain, - const unsigned char *buf, - size_t buflen ); - -/** - * \brief Parse a single DER formatted certificate and add it - * to the end of the provided chained list. This is a - * variant of mbedtls_x509_crt_parse_der() which takes - * temporary ownership of the CRT buffer until the CRT - * is destroyed. - * - * \param chain The pointer to the start of the CRT chain to attach to. - * When parsing the first CRT in a chain, this should point - * to an instance of ::mbedtls_x509_crt initialized through - * mbedtls_x509_crt_init(). - * \param buf The address of the readable buffer holding the DER encoded - * certificate to use. On success, this buffer must be - * retained and not be changed for the liftetime of the - * CRT chain \p chain, that is, until \p chain is destroyed - * through a call to mbedtls_x509_crt_free(). - * \param buflen The size in Bytes of \p buf. - * - * \note This call is functionally equivalent to - * mbedtls_x509_crt_parse_der(), but it avoids creating a - * copy of the input buffer at the cost of stronger lifetime - * constraints. This is useful in constrained environments - * where duplication of the CRT cannot be tolerated. - * - * \return \c 0 if successful. - * \return A negative error code on failure. - */ -int mbedtls_x509_crt_parse_der_nocopy( mbedtls_x509_crt *chain, - const unsigned char *buf, - size_t buflen ); - -/** - * \brief Parse one DER-encoded or one or more concatenated PEM-encoded - * certificates and add them to the chained list. - * - * For CRTs in PEM encoding, the function parses permissively: - * if at least one certificate can be parsed, the function - * returns the number of certificates for which parsing failed - * (hence \c 0 if all certificates were parsed successfully). - * If no certificate could be parsed, the function returns - * the first (negative) error encountered during parsing. - * - * PEM encoded certificates may be interleaved by other data - * such as human readable descriptions of their content, as - * long as the certificates are enclosed in the PEM specific - * '-----{BEGIN/END} CERTIFICATE-----' delimiters. - * - * \param chain The chain to which to add the parsed certificates. - * \param buf The buffer holding the certificate data in PEM or DER format. - * For certificates in PEM encoding, this may be a concatenation - * of multiple certificates; for DER encoding, the buffer must - * comprise exactly one certificate. - * \param buflen The size of \p buf, including the terminating \c NULL byte - * in case of PEM encoded data. - * - * \return \c 0 if all certificates were parsed successfully. - * \return The (positive) number of certificates that couldn't - * be parsed if parsing was partly successful (see above). - * \return A negative X509 or PEM error code otherwise. - * - */ -int mbedtls_x509_crt_parse( mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen ); - -#if defined(MBEDTLS_FS_IO) -/** - * \brief Load one or more certificates and add them - * to the chained list. Parses permissively. If some - * certificates can be parsed, the result is the number - * of failed certificates it encountered. If none complete - * correctly, the first error is returned. - * - * \param chain points to the start of the chain - * \param path filename to read the certificates from - * - * \return 0 if all certificates parsed successfully, a positive number - * if partly successful or a specific X509 or PEM error code - */ -int mbedtls_x509_crt_parse_file( mbedtls_x509_crt *chain, const char *path ); - -/** - * \brief Load one or more certificate files from a path and add them - * to the chained list. Parses permissively. If some - * certificates can be parsed, the result is the number - * of failed certificates it encountered. If none complete - * correctly, the first error is returned. - * - * \param chain points to the start of the chain - * \param path directory / folder to read the certificate files from - * - * \return 0 if all certificates parsed successfully, a positive number - * if partly successful or a specific X509 or PEM error code - */ -int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path ); -#endif /* MBEDTLS_FS_IO */ - -/** - * \brief Returns an informational string about the - * certificate. - * - * \param buf Buffer to write to - * \param size Maximum size of buffer - * \param prefix A line prefix - * \param crt The X509 certificate to represent - * - * \return The length of the string written (not including the - * terminated nul byte), or a negative error code. - */ -int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix, - const mbedtls_x509_crt *crt ); - -/** - * \brief Returns an informational string about the - * verification status of a certificate. - * - * \param buf Buffer to write to - * \param size Maximum size of buffer - * \param prefix A line prefix - * \param flags Verification flags created by mbedtls_x509_crt_verify() - * - * \return The length of the string written (not including the - * terminated nul byte), or a negative error code. - */ -int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix, - uint32_t flags ); - -/** - * \brief Verify a chain of certificates. - * - * The verify callback is a user-supplied callback that - * can clear / modify / add flags for a certificate. If set, - * the verification callback is called for each - * certificate in the chain (from the trust-ca down to the - * presented crt). The parameters for the callback are: - * (void *parameter, mbedtls_x509_crt *crt, int certificate_depth, - * int *flags). With the flags representing current flags for - * that specific certificate and the certificate depth from - * the bottom (Peer cert depth = 0). - * - * All flags left after returning from the callback - * are also returned to the application. The function should - * return 0 for anything (including invalid certificates) - * other than fatal error, as a non-zero return code - * immediately aborts the verification process. For fatal - * errors, a specific error code should be used (different - * from MBEDTLS_ERR_X509_CERT_VERIFY_FAILED which should not - * be returned at this point), or MBEDTLS_ERR_X509_FATAL_ERROR - * can be used if no better code is available. - * - * \note In case verification failed, the results can be displayed - * using \c mbedtls_x509_crt_verify_info() - * - * \note Same as \c mbedtls_x509_crt_verify_with_profile() with the - * default security profile. - * - * \note It is your responsibility to provide up-to-date CRLs for - * all trusted CAs. If no CRL is provided for the CA that was - * used to sign the certificate, CRL verification is skipped - * silently, that is *without* setting any flag. - * - * \note The \c trust_ca list can contain two types of certificates: - * (1) those of trusted root CAs, so that certificates - * chaining up to those CAs will be trusted, and (2) - * self-signed end-entity certificates to be trusted (for - * specific peers you know) - in that case, the self-signed - * certificate doesn't need to have the CA bit set. - * - * \param crt The certificate chain to be verified. - * \param trust_ca The list of trusted CAs. - * \param ca_crl The list of CRLs for trusted CAs. - * \param cn The expected Common Name. This may be \c NULL if the - * CN need not be verified. - * \param flags The address at which to store the result of the verification. - * If the verification couldn't be completed, the flag value is - * set to (uint32_t) -1. - * \param f_vrfy The verification callback to use. See the documentation - * of mbedtls_x509_crt_verify() for more information. - * \param p_vrfy The context to be passed to \p f_vrfy. - * - * \return \c 0 if the chain is valid with respect to the - * passed CN, CAs, CRLs and security profile. - * \return #MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the - * certificate chain verification failed. In this case, - * \c *flags will have one or more - * \c MBEDTLS_X509_BADCERT_XXX or \c MBEDTLS_X509_BADCRL_XXX - * flags set. - * \return Another negative error code in case of a fatal error - * encountered during the verification process. - */ -int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ); - -/** - * \brief Verify a chain of certificates with respect to - * a configurable security profile. - * - * \note Same as \c mbedtls_x509_crt_verify(), but with explicit - * security profile. - * - * \note The restrictions on keys (RSA minimum size, allowed curves - * for ECDSA) apply to all certificates: trusted root, - * intermediate CAs if any, and end entity certificate. - * - * \param crt The certificate chain to be verified. - * \param trust_ca The list of trusted CAs. - * \param ca_crl The list of CRLs for trusted CAs. - * \param profile The security profile to use for the verification. - * \param cn The expected Common Name. This may be \c NULL if the - * CN need not be verified. - * \param flags The address at which to store the result of the verification. - * If the verification couldn't be completed, the flag value is - * set to (uint32_t) -1. - * \param f_vrfy The verification callback to use. See the documentation - * of mbedtls_x509_crt_verify() for more information. - * \param p_vrfy The context to be passed to \p f_vrfy. - * - * \return \c 0 if the chain is valid with respect to the - * passed CN, CAs, CRLs and security profile. - * \return #MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the - * certificate chain verification failed. In this case, - * \c *flags will have one or more - * \c MBEDTLS_X509_BADCERT_XXX or \c MBEDTLS_X509_BADCRL_XXX - * flags set. - * \return Another negative error code in case of a fatal error - * encountered during the verification process. - */ -int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - const mbedtls_x509_crt_profile *profile, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ); - -/** - * \brief Restartable version of \c mbedtls_crt_verify_with_profile() - * - * \note Performs the same job as \c mbedtls_crt_verify_with_profile() - * but can return early and restart according to the limit - * set with \c mbedtls_ecp_set_max_ops() to reduce blocking. - * - * \param crt The certificate chain to be verified. - * \param trust_ca The list of trusted CAs. - * \param ca_crl The list of CRLs for trusted CAs. - * \param profile The security profile to use for the verification. - * \param cn The expected Common Name. This may be \c NULL if the - * CN need not be verified. - * \param flags The address at which to store the result of the verification. - * If the verification couldn't be completed, the flag value is - * set to (uint32_t) -1. - * \param f_vrfy The verification callback to use. See the documentation - * of mbedtls_x509_crt_verify() for more information. - * \param p_vrfy The context to be passed to \p f_vrfy. - * \param rs_ctx The restart context to use. This may be set to \c NULL - * to disable restartable ECC. - * - * \return See \c mbedtls_crt_verify_with_profile(), or - * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of - * operations was reached: see \c mbedtls_ecp_set_max_ops(). - */ -int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - const mbedtls_x509_crt_profile *profile, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy, - mbedtls_x509_crt_restart_ctx *rs_ctx ); - -/** - * \brief The type of trusted certificate callbacks. - * - * Callbacks of this type are passed to and used by the CRT - * verification routine mbedtls_x509_crt_verify_with_ca_cb() - * when looking for trusted signers of a given certificate. - * - * On success, the callback returns a list of trusted - * certificates to be considered as potential signers - * for the input certificate. - * - * \param p_ctx An opaque context passed to the callback. - * \param child The certificate for which to search a potential signer. - * This will point to a readable certificate. - * \param candidate_cas The address at which to store the address of the first - * entry in the generated linked list of candidate signers. - * This will not be \c NULL. - * - * \note The callback must only return a non-zero value on a - * fatal error. If, in contrast, the search for a potential - * signer completes without a single candidate, the - * callback must return \c 0 and set \c *candidate_cas - * to \c NULL. - * - * \return \c 0 on success. In this case, \c *candidate_cas points - * to a heap-allocated linked list of instances of - * ::mbedtls_x509_crt, and ownership of this list is passed - * to the caller. - * \return A negative error code on failure. - */ -typedef int (*mbedtls_x509_crt_ca_cb_t)( void *p_ctx, - mbedtls_x509_crt const *child, - mbedtls_x509_crt **candidate_cas ); - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) -/** - * \brief Version of \c mbedtls_x509_crt_verify_with_profile() which - * uses a callback to acquire the list of trusted CA - * certificates. - * - * \param crt The certificate chain to be verified. - * \param f_ca_cb The callback to be used to query for potential signers - * of a given child certificate. See the documentation of - * ::mbedtls_x509_crt_ca_cb_t for more information. - * \param p_ca_cb The opaque context to be passed to \p f_ca_cb. - * \param profile The security profile for the verification. - * \param cn The expected Common Name. This may be \c NULL if the - * CN need not be verified. - * \param flags The address at which to store the result of the verification. - * If the verification couldn't be completed, the flag value is - * set to (uint32_t) -1. - * \param f_vrfy The verification callback to use. See the documentation - * of mbedtls_x509_crt_verify() for more information. - * \param p_vrfy The context to be passed to \p f_vrfy. - * - * \return See \c mbedtls_crt_verify_with_profile(). - */ -int mbedtls_x509_crt_verify_with_ca_cb( mbedtls_x509_crt *crt, - mbedtls_x509_crt_ca_cb_t f_ca_cb, - void *p_ca_cb, - const mbedtls_x509_crt_profile *profile, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ); - -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ - -#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) -/** - * \brief Check usage of certificate against keyUsage extension. - * - * \param crt Leaf certificate used. - * \param usage Intended usage(s) (eg MBEDTLS_X509_KU_KEY_ENCIPHERMENT - * before using the certificate to perform an RSA key - * exchange). - * - * \note Except for decipherOnly and encipherOnly, a bit set in the - * usage argument means this bit MUST be set in the - * certificate. For decipherOnly and encipherOnly, it means - * that bit MAY be set. - * - * \return 0 is these uses of the certificate are allowed, - * MBEDTLS_ERR_X509_BAD_INPUT_DATA if the keyUsage extension - * is present but does not match the usage argument. - * - * \note You should only call this function on leaf certificates, on - * (intermediate) CAs the keyUsage extension is automatically - * checked by \c mbedtls_x509_crt_verify(). - */ -int mbedtls_x509_crt_check_key_usage( const mbedtls_x509_crt *crt, - unsigned int usage ); -#endif /* MBEDTLS_X509_CHECK_KEY_USAGE) */ - -#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) -/** - * \brief Check usage of certificate against extendedKeyUsage. - * - * \param crt Leaf certificate used. - * \param usage_oid Intended usage (eg MBEDTLS_OID_SERVER_AUTH or - * MBEDTLS_OID_CLIENT_AUTH). - * \param usage_len Length of usage_oid (eg given by MBEDTLS_OID_SIZE()). - * - * \return 0 if this use of the certificate is allowed, - * MBEDTLS_ERR_X509_BAD_INPUT_DATA if not. - * - * \note Usually only makes sense on leaf certificates. - */ -int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt, - const char *usage_oid, - size_t usage_len ); -#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */ - -#if defined(MBEDTLS_X509_CRL_PARSE_C) -/** - * \brief Verify the certificate revocation status - * - * \param crt a certificate to be verified - * \param crl the CRL to verify against - * - * \return 1 if the certificate is revoked, 0 otherwise - * - */ -int mbedtls_x509_crt_is_revoked( const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl ); -#endif /* MBEDTLS_X509_CRL_PARSE_C */ - -/** - * \brief Initialize a certificate (chain) - * - * \param crt Certificate chain to initialize - */ -void mbedtls_x509_crt_init( mbedtls_x509_crt *crt ); - -/** - * \brief Unallocate all certificate data - * - * \param crt Certificate chain to free - */ -void mbedtls_x509_crt_free( mbedtls_x509_crt *crt ); - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) -/** - * \brief Initialize a restart context - */ -void mbedtls_x509_crt_restart_init( mbedtls_x509_crt_restart_ctx *ctx ); - -/** - * \brief Free the components of a restart context - */ -void mbedtls_x509_crt_restart_free( mbedtls_x509_crt_restart_ctx *ctx ); -#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -/* \} name */ -/* \} addtogroup x509_module */ - -#if defined(MBEDTLS_X509_CRT_WRITE_C) -/** - * \brief Initialize a CRT writing context - * - * \param ctx CRT context to initialize - */ -void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx ); - -/** - * \brief Set the verion for a Certificate - * Default: MBEDTLS_X509_CRT_VERSION_3 - * - * \param ctx CRT context to use - * \param version version to set (MBEDTLS_X509_CRT_VERSION_1, MBEDTLS_X509_CRT_VERSION_2 or - * MBEDTLS_X509_CRT_VERSION_3) - */ -void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version ); - -/** - * \brief Set the serial number for a Certificate. - * - * \param ctx CRT context to use - * \param serial serial number to set - * - * \return 0 if successful - */ -int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial ); - -/** - * \brief Set the validity period for a Certificate - * Timestamps should be in string format for UTC timezone - * i.e. "YYYYMMDDhhmmss" - * e.g. "20131231235959" for December 31st 2013 - * at 23:59:59 - * - * \param ctx CRT context to use - * \param not_before not_before timestamp - * \param not_after not_after timestamp - * - * \return 0 if timestamp was parsed successfully, or - * a specific error code - */ -int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before, - const char *not_after ); - -/** - * \brief Set the issuer name for a Certificate - * Issuer names should contain a comma-separated list - * of OID types and values: - * e.g. "C=UK,O=ARM,CN=mbed TLS CA" - * - * \param ctx CRT context to use - * \param issuer_name issuer name to set - * - * \return 0 if issuer name was parsed successfully, or - * a specific error code - */ -int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx, - const char *issuer_name ); - -/** - * \brief Set the subject name for a Certificate - * Subject names should contain a comma-separated list - * of OID types and values: - * e.g. "C=UK,O=ARM,CN=mbed TLS Server 1" - * - * \param ctx CRT context to use - * \param subject_name subject name to set - * - * \return 0 if subject name was parsed successfully, or - * a specific error code - */ -int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx, - const char *subject_name ); - -/** - * \brief Set the subject public key for the certificate - * - * \param ctx CRT context to use - * \param key public key to include - */ -void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ); - -/** - * \brief Set the issuer key used for signing the certificate - * - * \param ctx CRT context to use - * \param key private key to sign with - */ -void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ); - -/** - * \brief Set the MD algorithm to use for the signature - * (e.g. MBEDTLS_MD_SHA1) - * - * \param ctx CRT context to use - * \param md_alg MD algorithm to use - */ -void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg ); - -/** - * \brief Generic function to add to or replace an extension in the - * CRT - * - * \param ctx CRT context to use - * \param oid OID of the extension - * \param oid_len length of the OID - * \param critical if the extension is critical (per the RFC's definition) - * \param val value of the extension OCTET STRING - * \param val_len length of the value data - * - * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx, - const char *oid, size_t oid_len, - int critical, - const unsigned char *val, size_t val_len ); - -/** - * \brief Set the basicConstraints extension for a CRT - * - * \param ctx CRT context to use - * \param is_ca is this a CA certificate - * \param max_pathlen maximum length of certificate chains below this - * certificate (only for CA certificates, -1 is - * inlimited) - * - * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx, - int is_ca, int max_pathlen ); - -#if defined(MBEDTLS_SHA1_C) -/** - * \brief Set the subjectKeyIdentifier extension for a CRT - * Requires that mbedtls_x509write_crt_set_subject_key() has been - * called before - * - * \param ctx CRT context to use - * - * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx ); - -/** - * \brief Set the authorityKeyIdentifier extension for a CRT - * Requires that mbedtls_x509write_crt_set_issuer_key() has been - * called before - * - * \param ctx CRT context to use - * - * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx ); -#endif /* MBEDTLS_SHA1_C */ - -/** - * \brief Set the Key Usage Extension flags - * (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) - * - * \param ctx CRT context to use - * \param key_usage key usage flags to set - * - * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx, - unsigned int key_usage ); - -/** - * \brief Set the Netscape Cert Type flags - * (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) - * - * \param ctx CRT context to use - * \param ns_cert_type Netscape Cert Type flags to set - * - * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx, - unsigned char ns_cert_type ); - -/** - * \brief Free the contents of a CRT write context - * - * \param ctx CRT context to free - */ -void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx ); - -/** - * \brief Write a built up certificate to a X509 DER structure - * Note: data is written at the end of the buffer! Use the - * return value to determine where you should start - * using the buffer - * - * \param ctx certificate to write away - * \param buf buffer to write to - * \param size size of the buffer - * \param f_rng RNG function (for signature, see note) - * \param p_rng RNG parameter - * - * \return length of data written if successful, or a specific - * error code - * - * \note f_rng may be NULL if RSA is used for signature and the - * signature is made offline (otherwise f_rng is desirable - * for countermeasures against timing attacks). - * ECDSA signatures always require a non-NULL f_rng. - */ -int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ); - -#if defined(MBEDTLS_PEM_WRITE_C) -/** - * \brief Write a built up certificate to a X509 PEM string - * - * \param ctx certificate to write away - * \param buf buffer to write to - * \param size size of the buffer - * \param f_rng RNG function (for signature, see note) - * \param p_rng RNG parameter - * - * \return 0 if successful, or a specific error code - * - * \note f_rng may be NULL if RSA is used for signature and the - * signature is made offline (otherwise f_rng is desirable - * for countermeasures against timing attacks). - * ECDSA signatures always require a non-NULL f_rng. - */ -int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ); -#endif /* MBEDTLS_PEM_WRITE_C */ -#endif /* MBEDTLS_X509_CRT_WRITE_C */ - -#ifdef __cplusplus -} -#endif - -#endif /* mbedtls_x509_crt.h */ diff --git a/include/mbedtls/x509_csr.h b/include/mbedtls/x509_csr.h deleted file mode 100644 index a3c28048e..000000000 --- a/include/mbedtls/x509_csr.h +++ /dev/null @@ -1,307 +0,0 @@ -/** - * \file x509_csr.h - * - * \brief X.509 certificate signing request parsing and writing - */ -/* - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -#ifndef MBEDTLS_X509_CSR_H -#define MBEDTLS_X509_CSR_H - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "x509.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \addtogroup x509_module - * \{ */ - -/** - * \name Structures and functions for X.509 Certificate Signing Requests (CSR) - * \{ - */ - -/** - * Certificate Signing Request (CSR) structure. - */ -typedef struct mbedtls_x509_csr -{ - mbedtls_x509_buf raw; /**< The raw CSR data (DER). */ - mbedtls_x509_buf cri; /**< The raw CertificateRequestInfo body (DER). */ - - int version; /**< CSR version (1=v1). */ - - mbedtls_x509_buf subject_raw; /**< The raw subject data (DER). */ - mbedtls_x509_name subject; /**< The parsed subject data (named information object). */ - - mbedtls_pk_context pk; /**< Container for the public key context. */ - - mbedtls_x509_buf sig_oid; - mbedtls_x509_buf sig; - mbedtls_md_type_t sig_md; /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */ - mbedtls_pk_type_t sig_pk; /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */ - void *sig_opts; /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */ -} -mbedtls_x509_csr; - -/** - * Container for writing a CSR - */ -typedef struct mbedtls_x509write_csr -{ - mbedtls_pk_context *key; - mbedtls_asn1_named_data *subject; - mbedtls_md_type_t md_alg; - mbedtls_asn1_named_data *extensions; -} -mbedtls_x509write_csr; - -#if defined(MBEDTLS_X509_CSR_PARSE_C) -/** - * \brief Load a Certificate Signing Request (CSR) in DER format - * - * \note CSR attributes (if any) are currently silently ignored. - * - * \param csr CSR context to fill - * \param buf buffer holding the CRL data - * \param buflen size of the buffer - * - * \return 0 if successful, or a specific X509 error code - */ -int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr, - const unsigned char *buf, size_t buflen ); - -/** - * \brief Load a Certificate Signing Request (CSR), DER or PEM format - * - * \note See notes for \c mbedtls_x509_csr_parse_der() - * - * \param csr CSR context to fill - * \param buf buffer holding the CRL data - * \param buflen size of the buffer - * (including the terminating null byte for PEM data) - * - * \return 0 if successful, or a specific X509 or PEM error code - */ -int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen ); - -#if defined(MBEDTLS_FS_IO) -/** - * \brief Load a Certificate Signing Request (CSR) - * - * \note See notes for \c mbedtls_x509_csr_parse() - * - * \param csr CSR context to fill - * \param path filename to read the CSR from - * - * \return 0 if successful, or a specific X509 or PEM error code - */ -int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path ); -#endif /* MBEDTLS_FS_IO */ - -/** - * \brief Returns an informational string about the - * CSR. - * - * \param buf Buffer to write to - * \param size Maximum size of buffer - * \param prefix A line prefix - * \param csr The X509 CSR to represent - * - * \return The length of the string written (not including the - * terminated nul byte), or a negative error code. - */ -int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix, - const mbedtls_x509_csr *csr ); - -/** - * \brief Initialize a CSR - * - * \param csr CSR to initialize - */ -void mbedtls_x509_csr_init( mbedtls_x509_csr *csr ); - -/** - * \brief Unallocate all CSR data - * - * \param csr CSR to free - */ -void mbedtls_x509_csr_free( mbedtls_x509_csr *csr ); -#endif /* MBEDTLS_X509_CSR_PARSE_C */ - -/* \} name */ -/* \} addtogroup x509_module */ - -#if defined(MBEDTLS_X509_CSR_WRITE_C) -/** - * \brief Initialize a CSR context - * - * \param ctx CSR context to initialize - */ -void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx ); - -/** - * \brief Set the subject name for a CSR - * Subject names should contain a comma-separated list - * of OID types and values: - * e.g. "C=UK,O=ARM,CN=mbed TLS Server 1" - * - * \param ctx CSR context to use - * \param subject_name subject name to set - * - * \return 0 if subject name was parsed successfully, or - * a specific error code - */ -int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx, - const char *subject_name ); - -/** - * \brief Set the key for a CSR (public key will be included, - * private key used to sign the CSR when writing it) - * - * \param ctx CSR context to use - * \param key Asymetric key to include - */ -void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key ); - -/** - * \brief Set the MD algorithm to use for the signature - * (e.g. MBEDTLS_MD_SHA1) - * - * \param ctx CSR context to use - * \param md_alg MD algorithm to use - */ -void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg ); - -/** - * \brief Set the Key Usage Extension flags - * (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN) - * - * \param ctx CSR context to use - * \param key_usage key usage flags to set - * - * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED - * - * \note The decipherOnly flag from the Key Usage - * extension is represented by bit 8 (i.e. - * 0x8000), which cannot typically be represented - * in an unsigned char. Therefore, the flag - * decipherOnly (i.e. - * #MBEDTLS_X509_KU_DECIPHER_ONLY) cannot be set using this - * function. - */ -int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage ); - -/** - * \brief Set the Netscape Cert Type flags - * (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL) - * - * \param ctx CSR context to use - * \param ns_cert_type Netscape Cert Type flags to set - * - * \return 0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx, - unsigned char ns_cert_type ); - -/** - * \brief Generic function to add to or replace an extension in the - * CSR - * - * \param ctx CSR context to use - * \param oid OID of the extension - * \param oid_len length of the OID - * \param val value of the extension OCTET STRING - * \param val_len length of the value data - * - * \return 0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED - */ -int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx, - const char *oid, size_t oid_len, - const unsigned char *val, size_t val_len ); - -/** - * \brief Free the contents of a CSR context - * - * \param ctx CSR context to free - */ -void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx ); - -/** - * \brief Write a CSR (Certificate Signing Request) to a - * DER structure - * Note: data is written at the end of the buffer! Use the - * return value to determine where you should start - * using the buffer - * - * \param ctx CSR to write away - * \param buf buffer to write to - * \param size size of the buffer - * \param f_rng RNG function (for signature, see note) - * \param p_rng RNG parameter - * - * \return length of data written if successful, or a specific - * error code - * - * \note f_rng may be NULL if RSA is used for signature and the - * signature is made offline (otherwise f_rng is desirable - * for countermeasures against timing attacks). - * ECDSA signatures always require a non-NULL f_rng. - */ -int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ); - -#if defined(MBEDTLS_PEM_WRITE_C) -/** - * \brief Write a CSR (Certificate Signing Request) to a - * PEM string - * - * \param ctx CSR to write away - * \param buf buffer to write to - * \param size size of the buffer - * \param f_rng RNG function (for signature, see note) - * \param p_rng RNG parameter - * - * \return 0 if successful, or a specific error code - * - * \note f_rng may be NULL if RSA is used for signature and the - * signature is made offline (otherwise f_rng is desirable - * for countermeasures against timing attacks). - * ECDSA signatures always require a non-NULL f_rng. - */ -int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ); -#endif /* MBEDTLS_PEM_WRITE_C */ -#endif /* MBEDTLS_X509_CSR_WRITE_C */ - -#ifdef __cplusplus -} -#endif - -#endif /* mbedtls_x509_csr.h */ diff --git a/library/certs.c b/library/certs.c deleted file mode 100644 index b54ff611f..000000000 --- a/library/certs.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - * X.509 test certificates - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#include "mbedtls/certs.h" - -#if defined(MBEDTLS_CERTS_C) - -#if defined(MBEDTLS_ECDSA_C) -#define TEST_CA_CRT_EC \ -"-----BEGIN CERTIFICATE-----\r\n" \ -"MIICUjCCAdegAwIBAgIJAMFD4n5iQ8zoMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT\r\n" \ -"Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF\r\n" \ -"QyBDQTAeFw0xMzA5MjQxNTQ5NDhaFw0yMzA5MjIxNTQ5NDhaMD4xCzAJBgNVBAYT\r\n" \ -"Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF\r\n" \ -"QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu\r\n" \ -"ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy\r\n" \ -"aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqOBoDCBnTAdBgNVHQ4EFgQUnW0g\r\n" \ -"JEkBPyvLeLUZvH4kydv7NnwwbgYDVR0jBGcwZYAUnW0gJEkBPyvLeLUZvH4kydv7\r\n" \ -"NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UE\r\n" \ -"AxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w\r\n" \ -"CgYIKoZIzj0EAwIDaQAwZgIxAMO0YnNWKJUAfXgSJtJxexn4ipg+kv4znuR50v56\r\n" \ -"t4d0PCu412mUC6Nnd7izvtE2MgIxAP1nnJQjZ8BWukszFQDG48wxCCyci9qpdSMv\r\n" \ -"uCjn8pwUOkABXK8Mss90fzCfCEOtIA==\r\n" \ -"-----END CERTIFICATE-----\r\n" -const char mbedtls_test_ca_crt_ec[] = TEST_CA_CRT_EC; -const size_t mbedtls_test_ca_crt_ec_len = sizeof( mbedtls_test_ca_crt_ec ); - -const char mbedtls_test_ca_key_ec[] = -"-----BEGIN EC PRIVATE KEY-----\r\n" -"Proc-Type: 4,ENCRYPTED\r\n" -"DEK-Info: DES-EDE3-CBC,307EAB469933D64E\r\n" -"\r\n" -"IxbrRmKcAzctJqPdTQLA4SWyBYYGYJVkYEna+F7Pa5t5Yg/gKADrFKcm6B72e7DG\r\n" -"ihExtZI648s0zdYw6qSJ74vrPSuWDe5qm93BqsfVH9svtCzWHW0pm1p0KTBCFfUq\r\n" -"UsuWTITwJImcnlAs1gaRZ3sAWm7cOUidL0fo2G0fYUFNcYoCSLffCFTEHBuPnagb\r\n" -"a77x/sY1Bvii8S9/XhDTb6pTMx06wzrm\r\n" -"-----END EC PRIVATE KEY-----\r\n"; -const size_t mbedtls_test_ca_key_ec_len = sizeof( mbedtls_test_ca_key_ec ); - -const char mbedtls_test_ca_pwd_ec[] = "PolarSSLTest"; -const size_t mbedtls_test_ca_pwd_ec_len = sizeof( mbedtls_test_ca_pwd_ec ) - 1; - -const char mbedtls_test_srv_crt_ec[] = -"-----BEGIN CERTIFICATE-----\r\n" -"MIICHzCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n" -"A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n" -"MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n" -"A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG\r\n" -"CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA\r\n" -"2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd\r\n" -"BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB\r\n" -"PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh\r\n" -"clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG\r\n" -"CCqGSM49BAMCA2gAMGUCMQCaLFzXptui5WQN8LlO3ddh1hMxx6tzgLvT03MTVK2S\r\n" -"C12r0Lz3ri/moSEpNZWqPjkCMCE2f53GXcYLqyfyJR078c/xNSUU5+Xxl7VZ414V\r\n" -"fGa5kHvHARBPc8YAIVIqDvHH1Q==\r\n" -"-----END CERTIFICATE-----\r\n"; -const size_t mbedtls_test_srv_crt_ec_len = sizeof( mbedtls_test_srv_crt_ec ); - -const char mbedtls_test_srv_key_ec[] = -"-----BEGIN EC PRIVATE KEY-----\r\n" -"MHcCAQEEIPEqEyB2AnCoPL/9U/YDHvdqXYbIogTywwyp6/UfDw6noAoGCCqGSM49\r\n" -"AwEHoUQDQgAEN8xW2XYJHlpyPsdZLf8gbu58+QaRdNCtFLX3aCJZYpJO5QDYIxH/\r\n" -"6i/SNF1dFr2KiMJrdw1VzYoqDvoByLTt/w==\r\n" -"-----END EC PRIVATE KEY-----\r\n"; -const size_t mbedtls_test_srv_key_ec_len = sizeof( mbedtls_test_srv_key_ec ); - -const char mbedtls_test_cli_crt_ec[] = -"-----BEGIN CERTIFICATE-----\r\n" -"MIICLDCCAbKgAwIBAgIBDTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n" -"A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n" -"MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjBBMQswCQYDVQQGEwJOTDERMA8G\r\n" -"A1UEChMIUG9sYXJTU0wxHzAdBgNVBAMTFlBvbGFyU1NMIFRlc3QgQ2xpZW50IDIw\r\n" -"WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARX5a6xc9/TrLuTuIH/Eq7u5lOszlVT\r\n" -"9jQOzC7jYyUL35ji81xgNpbA1RgUcOV/n9VLRRjlsGzVXPiWj4dwo+THo4GdMIGa\r\n" -"MAkGA1UdEwQCMAAwHQYDVR0OBBYEFHoAX4Zk/OBd5REQO7LmO8QmP8/iMG4GA1Ud\r\n" -"IwRnMGWAFJ1tICRJAT8ry3i1Gbx+JMnb+zZ8oUKkQDA+MQswCQYDVQQGEwJOTDER\r\n" -"MA8GA1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0GC\r\n" -"CQDBQ+J+YkPM6DAKBggqhkjOPQQDAgNoADBlAjBKZQ17IIOimbmoD/yN7o89u3BM\r\n" -"lgOsjnhw3fIOoLIWy2WOGsk/LGF++DzvrRzuNiACMQCd8iem1XS4JK7haj8xocpU\r\n" -"LwjQje5PDGHfd3h9tP38Qknu5bJqws0md2KOKHyeV0U=\r\n" -"-----END CERTIFICATE-----\r\n"; -const size_t mbedtls_test_cli_crt_ec_len = sizeof( mbedtls_test_cli_crt_ec ); - -const char mbedtls_test_cli_key_ec[] = -"-----BEGIN EC PRIVATE KEY-----\r\n" -"MHcCAQEEIPb3hmTxZ3/mZI3vyk7p3U3wBf+WIop6hDhkFzJhmLcqoAoGCCqGSM49\r\n" -"AwEHoUQDQgAEV+WusXPf06y7k7iB/xKu7uZTrM5VU/Y0Dswu42MlC9+Y4vNcYDaW\r\n" -"wNUYFHDlf5/VS0UY5bBs1Vz4lo+HcKPkxw==\r\n" -"-----END EC PRIVATE KEY-----\r\n"; -const size_t mbedtls_test_cli_key_ec_len = sizeof( mbedtls_test_cli_key_ec ); -#endif /* MBEDTLS_ECDSA_C */ - -#if defined(MBEDTLS_RSA_C) -#if defined(MBEDTLS_SHA256_C) -#define TEST_CA_CRT_RSA_SHA256 \ -"-----BEGIN CERTIFICATE-----\r\n" \ -"MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER\r\n" \ -"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" \ -"MTcwNTA0MTY1NzAxWhcNMjcwNTA1MTY1NzAxWjA7MQswCQYDVQQGEwJOTDERMA8G\r\n" \ -"A1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G\r\n" \ -"CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx\r\n" \ -"mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny\r\n" \ -"50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n\r\n" \ -"YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL\r\n" \ -"R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu\r\n" \ -"KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj\r\n" \ -"gZUwgZIwHQYDVR0OBBYEFLRa5KWz3tJS9rnVppUP6z68x/3/MGMGA1UdIwRcMFqA\r\n" \ -"FLRa5KWz3tJS9rnVppUP6z68x/3/oT+kPTA7MQswCQYDVQQGEwJOTDERMA8GA1UE\r\n" \ -"CgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0GCAQAwDAYDVR0T\r\n" \ -"BAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAHK/HHrTZMnnVMpde1io+voAtql7j\r\n" \ -"4sRhLrjD7o3THtwRbDa2diCvpq0Sq23Ng2LMYoXsOxoL/RQK3iN7UKxV3MKPEr0w\r\n" \ -"XQS+kKQqiT2bsfrjnWMVHZtUOMpm6FNqcdGm/Rss3vKda2lcKl8kUnq/ylc1+QbB\r\n" \ -"G6A6tUvQcr2ZyWfVg+mM5XkhTrOOXus2OLikb4WwEtJTJRNE0f+yPODSUz0/vT57\r\n" \ -"ApH0CnB80bYJshYHPHHymOtleAB8KSYtqm75g/YNobjnjB6cm4HkW3OZRVIl6fYY\r\n" \ -"n20NRVA1Vjs6GAROr4NqW4k/+LofY9y0LLDE+p0oIEKXIsIvhPr39swxSA==\r\n" \ -"-----END CERTIFICATE-----\r\n" - -static const char mbedtls_test_ca_crt_rsa_sha256[] = TEST_CA_CRT_RSA_SHA256; -const char mbedtls_test_ca_crt_rsa[] = TEST_CA_CRT_RSA_SHA256; -const size_t mbedtls_test_ca_crt_rsa_len = sizeof( mbedtls_test_ca_crt_rsa ); -#define TEST_CA_CRT_RSA_SOME -#endif /* MBEDTLS_SHA256_C */ - -#if !defined(TEST_CA_CRT_RSA_SOME) || defined(MBEDTLS_SHA1_C) -#define TEST_CA_CRT_RSA_SHA1 \ -"-----BEGIN CERTIFICATE-----\r\n" \ -"MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n" \ -"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" \ -"MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G\r\n" \ -"A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G\r\n" \ -"CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx\r\n" \ -"mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny\r\n" \ -"50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n\r\n" \ -"YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL\r\n" \ -"R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu\r\n" \ -"KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj\r\n" \ -"gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH\r\n" \ -"/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV\r\n" \ -"BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz\r\n" \ -"dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ\r\n" \ -"SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H\r\n" \ -"DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF\r\n" \ -"pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf\r\n" \ -"m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ\r\n" \ -"7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==\r\n" \ -"-----END CERTIFICATE-----\r\n" - -static const char mbedtls_test_ca_crt_rsa_sha1[] = TEST_CA_CRT_RSA_SHA1; - -#if !defined (TEST_CA_CRT_RSA_SOME) -const char mbedtls_test_ca_crt_rsa[] = TEST_CA_CRT_RSA_SHA1; -const size_t mbedtls_test_ca_crt_rsa_len = sizeof( mbedtls_test_ca_crt_rsa ); -#endif /* !TEST_CA_CRT_RSA_SOME */ -#endif /* !TEST_CA_CRT_RSA_COME || MBEDTLS_SHA1_C */ - -#if defined(MBEDTLS_SHA256_C) -/* tests/data_files/server2-sha256.crt */ -#define TEST_SRV_CRT_RSA_SHA256 \ -"-----BEGIN CERTIFICATE-----\r\n" \ -"MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER\r\n" \ -"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" \ -"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n" \ -"A1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN\r\n" \ -"AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN\r\n" \ -"owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz\r\n" \ -"NtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kM\r\n" \ -"tQCQ4dqCEGZ9rlQri2V5kaHiYcPNQEkI7mgM8YuG0ka/0LiqEQMef1aoGh5EGA8P\r\n" \ -"hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya\r\n" \ -"HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYD\r\n" \ -"VR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgw\r\n" \ -"FoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQELBQADggEBAGGEshT5\r\n" \ -"kvnRmLVScVeUEdwIrvW7ezbGbUvJ8VxeJ79/HSjlLiGbMc4uUathwtzEdi9R/4C5\r\n" \ -"DXBNeEPTkbB+fhG1W06iHYj/Dp8+aaG7fuDxKVKHVZSqBnmQLn73ymyclZNHii5A\r\n" \ -"3nTS8WUaHAzxN/rajOtoM7aH1P9tULpHrl+7HOeLMpxUnwI12ZqZaLIzxbcdJVcr\r\n" \ -"ra2F00aXCGkYVLvyvbZIq7LC+yVysej5gCeQYD7VFOEks0jhFjrS06gP0/XnWv6v\r\n" \ -"eBoPez9d+CCjkrhseiWzXOiriIMICX48EloO/DrsMRAtvlwq7EDz4QhILz6ffndm\r\n" \ -"e4K1cVANRPN2o9Y=\r\n" \ -"-----END CERTIFICATE-----\r\n" - -const char mbedtls_test_srv_crt_rsa[] = TEST_SRV_CRT_RSA_SHA256; -const size_t mbedtls_test_srv_crt_rsa_len = sizeof( mbedtls_test_srv_crt_rsa ); -#define TEST_SRV_CRT_RSA_SOME -#endif /* MBEDTLS_SHA256_C */ - -#if !defined(TEST_SRV_CRT_RSA_SOME) || defined(MBEDTLS_SHA1_C) -/* tests/data_files/server2.crt */ -#define TEST_SRV_CRT_RSA_SHA1 \ -"-----BEGIN CERTIFICATE-----\r\n" \ -"MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n" \ -"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" \ -"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n" \ -"A1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN\r\n" \ -"AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN\r\n" \ -"owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz\r\n" \ -"NtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kM\r\n" \ -"tQCQ4dqCEGZ9rlQri2V5kaHiYcPNQEkI7mgM8YuG0ka/0LiqEQMef1aoGh5EGA8P\r\n" \ -"hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya\r\n" \ -"HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYD\r\n" \ -"VR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgw\r\n" \ -"FoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQEFBQADggEBAAFzC0rF\r\n" \ -"y6De8WMcdgQrEw3AhBHFjzqnxZw1ene4IBSC7lTw8rBSy3jOWQdPUWn+0y/pCeeF\r\n" \ -"kti6sevFdl1hLemGtd4q+T9TKEKGg3ND4ARfB5AUZZ9uEHq8WBkiwus5clGS17Qd\r\n" \ -"dS/TOisB59tQruLx1E1bPLtBKyqk4koC5WAULJwfpswGSyWJTpYwIpxcWE3D2tBu\r\n" \ -"UB6MZfXZFzWmWEOyKbeoXjXe8GBCGgHLywvYDsGQ36HSGtEsAvR2QaTLSxWYcfk1\r\n" \ -"fbDn4jSWkb4yZy1r01UEigFQtONieGwRFaUqEcFJHJvEEGVgh9keaVlOj2vrwf5r\r\n" \ -"4mN4lW7gLdenN6g=\r\n" \ -"-----END CERTIFICATE-----\r\n"; - -#if !defined(TEST_SRV_CRT_RSA_SOME) -const char mbedtls_test_srv_crt_rsa[] = TEST_SRV_CRT_RSA_SHA1; -const size_t mbedtls_test_srv_crt_rsa_len = sizeof( mbedtls_test_srv_crt_rsa ); -#endif /* TEST_SRV_CRT_RSA_SOME */ -#endif /* !TEST_CA_CRT_RSA_SOME || MBEDTLS_SHA1_C */ - -const char mbedtls_test_ca_key_rsa[] = -"-----BEGIN RSA PRIVATE KEY-----\r\n" -"Proc-Type: 4,ENCRYPTED\r\n" -"DEK-Info: DES-EDE3-CBC,A8A95B05D5B7206B\r\n" -"\r\n" -"9Qd9GeArejl1GDVh2lLV1bHt0cPtfbh5h/5zVpAVaFpqtSPMrElp50Rntn9et+JA\r\n" -"7VOyboR+Iy2t/HU4WvA687k3Bppe9GwKHjHhtl//8xFKwZr3Xb5yO5JUP8AUctQq\r\n" -"Nb8CLlZyuUC+52REAAthdWgsX+7dJO4yabzUcQ22Tp9JSD0hiL43BlkWYUNK3dAo\r\n" -"PZlmiptjnzVTjg1MxsBSydZinWOLBV8/JQgxSPo2yD4uEfig28qbvQ2wNIn0pnAb\r\n" -"GxnSAOazkongEGfvcjIIs+LZN9gXFhxcOh6kc4Q/c99B7QWETwLLkYgZ+z1a9VY9\r\n" -"gEU7CwCxYCD+h9hY6FPmsK0/lC4O7aeRKpYq00rPPxs6i7phiexg6ax6yTMmArQq\r\n" -"QmK3TAsJm8V/J5AWpLEV6jAFgRGymGGHnof0DXzVWZidrcZJWTNuGEX90nB3ee2w\r\n" -"PXJEFWKoD3K3aFcSLdHYr3mLGxP7H9ThQai9VsycxZKS5kwvBKQ//YMrmFfwPk8x\r\n" -"vTeY4KZMaUrveEel5tWZC94RSMKgxR6cyE1nBXyTQnDOGbfpNNgBKxyKbINWoOJU\r\n" -"WJZAwlsQn+QzCDwpri7+sV1mS3gBE6UY7aQmnmiiaC2V3Hbphxct/en5QsfDOt1X\r\n" -"JczSfpRWLlbPznZg8OQh/VgCMA58N5DjOzTIK7sJJ5r+94ZBTCpgAMbF588f0NTR\r\n" -"KCe4yrxGJR7X02M4nvD4IwOlpsQ8xQxZtOSgXv4LkxvdU9XJJKWZ/XNKJeWztxSe\r\n" -"Z1vdTc2YfsDBA2SEv33vxHx2g1vqtw8SjDRT2RaQSS0QuSaMJimdOX6mTOCBKk1J\r\n" -"9Q5mXTrER+/LnK0jEmXsBXWA5bqqVZIyahXSx4VYZ7l7w/PHiUDtDgyRhMMKi4n2\r\n" -"iQvQcWSQTjrpnlJbca1/DkpRt3YwrvJwdqb8asZU2VrNETh5x0QVefDRLFiVpif/\r\n" -"tUaeAe/P1F8OkS7OIZDs1SUbv/sD2vMbhNkUoCms3/PvNtdnvgL4F0zhaDpKCmlT\r\n" -"P8vx49E7v5CyRNmED9zZg4o3wmMqrQO93PtTug3Eu9oVx1zPQM1NVMyBa2+f29DL\r\n" -"1nuTCeXdo9+ni45xx+jAI4DCwrRdhJ9uzZyC6962H37H6D+5naNvClFR1s6li1Gb\r\n" -"nqPoiy/OBsEx9CaDGcqQBp5Wme/3XW+6z1ISOx+igwNTVCT14mHdBMbya0eIKft5\r\n" -"X+GnwtgEMyCYyyWuUct8g4RzErcY9+yW9Om5Hzpx4zOuW4NPZgPDTgK+t2RSL/Yq\r\n" -"rE1njrgeGYcVeG3f+OftH4s6fPbq7t1A5ZgUscbLMBqr9tK+OqygR4EgKBPsH6Cz\r\n" -"L6zlv/2RV0qAHvVuDJcIDIgwY5rJtINEm32rhOeFNJwZS5MNIC1czXZx5//ugX7l\r\n" -"I4sy5nbVhwSjtAk8Xg5dZbdTZ6mIrb7xqH+fdakZor1khG7bC2uIwibD3cSl2XkR\r\n" -"wN48lslbHnqqagr6Xm1nNOSVl8C/6kbJEsMpLhAezfRtGwvOucoaE+WbeUNolGde\r\n" -"P/eQiddSf0brnpiLJRh7qZrl9XuqYdpUqnoEdMAfotDOID8OtV7gt8a48ad8VPW2\r\n" -"-----END RSA PRIVATE KEY-----\r\n"; -const size_t mbedtls_test_ca_key_rsa_len = sizeof( mbedtls_test_ca_key_rsa ); - -const char mbedtls_test_ca_pwd_rsa[] = "PolarSSLTest"; -const size_t mbedtls_test_ca_pwd_rsa_len = sizeof( mbedtls_test_ca_pwd_rsa ) - 1; - -const char mbedtls_test_srv_key_rsa[] = -"-----BEGIN RSA PRIVATE KEY-----\r\n" -"MIIEpAIBAAKCAQEAwU2j3efNHdEE10lyuJmsDnjkOjxKzzoTFtBa5M2jAIin7h5r\r\n" -"lqdStJDvLXJ6PiSa/LY0rCT1d+AmZIycsCh9odrqjObJHJa8/sEEUrM21KP64bF2\r\n" -"2JDBYbRmUjaiJlOqq3ReB30Zgtsq2B+g2Q0cLUlm91slc0boC4pPaQy1AJDh2oIQ\r\n" -"Zn2uVCuLZXmRoeJhw81ASQjuaAzxi4bSRr/QuKoRAx5/VqgaHkQYDw+Fi9qLRF7i\r\n" -"GMZiL8dmjfpd2H3zJ4kpAcWQDj8n8TDISg7v1t7HxydrxwU9esQCPJodPg/oNJhb\r\n" -"y3NLUpbYEaIsgIhpOVrTD7DeWS8Rx/fqEgEwlwIDAQABAoIBAQCXR0S8EIHFGORZ\r\n" -"++AtOg6eENxD+xVs0f1IeGz57Tjo3QnXX7VBZNdj+p1ECvhCE/G7XnkgU5hLZX+G\r\n" -"Z0jkz/tqJOI0vRSdLBbipHnWouyBQ4e/A1yIJdlBtqXxJ1KE/ituHRbNc4j4kL8Z\r\n" -"/r6pvwnTI0PSx2Eqs048YdS92LT6qAv4flbNDxMn2uY7s4ycS4Q8w1JXnCeaAnYm\r\n" -"WYI5wxO+bvRELR2Mcz5DmVnL8jRyml6l6582bSv5oufReFIbyPZbQWlXgYnpu6He\r\n" -"GTc7E1zKYQGG/9+DQUl/1vQuCPqQwny0tQoX2w5tdYpdMdVm+zkLtbajzdTviJJa\r\n" -"TWzL6lt5AoGBAN86+SVeJDcmQJcv4Eq6UhtRr4QGMiQMz0Sod6ettYxYzMgxtw28\r\n" -"CIrgpozCc+UaZJLo7UxvC6an85r1b2nKPCLQFaggJ0H4Q0J/sZOhBIXaoBzWxveK\r\n" -"nupceKdVxGsFi8CDy86DBfiyFivfBj+47BbaQzPBj7C4rK7UlLjab2rDAoGBAN2u\r\n" -"AM2gchoFiu4v1HFL8D7lweEpi6ZnMJjnEu/dEgGQJFjwdpLnPbsj4c75odQ4Gz8g\r\n" -"sw9lao9VVzbusoRE/JGI4aTdO0pATXyG7eG1Qu+5Yc1YGXcCrliA2xM9xx+d7f+s\r\n" -"mPzN+WIEg5GJDYZDjAzHG5BNvi/FfM1C9dOtjv2dAoGAF0t5KmwbjWHBhcVqO4Ic\r\n" -"BVvN3BIlc1ue2YRXEDlxY5b0r8N4XceMgKmW18OHApZxfl8uPDauWZLXOgl4uepv\r\n" -"whZC3EuWrSyyICNhLY21Ah7hbIEBPF3L3ZsOwC+UErL+dXWLdB56Jgy3gZaBeW7b\r\n" -"vDrEnocJbqCm7IukhXHOBK8CgYEAwqdHB0hqyNSzIOGY7v9abzB6pUdA3BZiQvEs\r\n" -"3LjHVd4HPJ2x0N8CgrBIWOE0q8+0hSMmeE96WW/7jD3fPWwCR5zlXknxBQsfv0gP\r\n" -"3BC5PR0Qdypz+d+9zfMf625kyit4T/hzwhDveZUzHnk1Cf+IG7Q+TOEnLnWAWBED\r\n" -"ISOWmrUCgYAFEmRxgwAc/u+D6t0syCwAYh6POtscq9Y0i9GyWk89NzgC4NdwwbBH\r\n" -"4AgahOxIxXx2gxJnq3yfkJfIjwf0s2DyP0kY2y6Ua1OeomPeY9mrIS4tCuDQ6LrE\r\n" -"TB6l9VGoxJL4fyHnZb8L5gGvnB1bbD8cL6YPaDiOhcRseC9vBiEuVg==\r\n" -"-----END RSA PRIVATE KEY-----\r\n"; -const size_t mbedtls_test_srv_key_rsa_len = sizeof( mbedtls_test_srv_key_rsa ); - -/* tests/data_files/cli-rsa-sha256.crt */ -const char mbedtls_test_cli_crt_rsa[] = -"-----BEGIN CERTIFICATE-----\r\n" -"MIIDPzCCAiegAwIBAgIBBDANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER\r\n" -"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" -"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA8MQswCQYDVQQGEwJOTDERMA8G\r\n" -"A1UECgwIUG9sYXJTU0wxGjAYBgNVBAMMEVBvbGFyU1NMIENsaWVudCAyMIIBIjAN\r\n" -"BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6f\r\n" -"M60Nj4o8VmXl3ETZzGaFB9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu\r\n" -"1C93KYRhTYJQj6eVSHD1bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEw\r\n" -"MjDV0/YI0FZPRo7yX/k9Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v\r\n" -"4Jv4EFbMs44TFeY0BGbH7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx/\r\n" -"/DZrtenNLQNiTrM9AM+vdqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQAB\r\n" -"o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBRxoQBzckAvVHZeM/xSj7zx3WtGITAf\r\n" -"BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQsFAAOC\r\n" -"AQEAlHabem2Tu69VUN7EipwnQn1dIHdgvT5i+iQHpSxY1crPnBbAeSdAXwsVEqLQ\r\n" -"gOOIAQD5VIITNuoGgo4i+4OpNh9u7ZkpRHla+/swsfrFWRRbBNP5Bcu74AGLstwU\r\n" -"zM8gIkBiyfM1Q1qDQISV9trlCG6O8vh8dp/rbI3rfzo99BOHXgFCrzXjCuW4vDsF\r\n" -"r+Dao26bX3sJ6UnEWg1H3o2x6PpUcvQ36h71/bz4TEbbUUEpe02V4QWuL+wrhHJL\r\n" -"U7o3SVE3Og7jPF8sat0a50YUWhwEFI256m02KAXLg89ueUyYKEr6rNwhcvXJpvU9\r\n" -"giIVvd0Sbjjnn7NC4VDbcXV8vw==\r\n" -"-----END CERTIFICATE-----\r\n"; -const size_t mbedtls_test_cli_crt_rsa_len = sizeof( mbedtls_test_cli_crt_rsa ); - -/* tests/data_files/cli-rsa.key */ -const char mbedtls_test_cli_key_rsa[] = -"-----BEGIN RSA PRIVATE KEY-----\r\n" -"MIIEpAIBAAKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6fM60Nj4o8VmXl3ETZzGaF\r\n" -"B9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu1C93KYRhTYJQj6eVSHD1\r\n" -"bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEwMjDV0/YI0FZPRo7yX/k9\r\n" -"Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v4Jv4EFbMs44TFeY0BGbH\r\n" -"7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx//DZrtenNLQNiTrM9AM+v\r\n" -"dqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQABAoIBAGdNtfYDiap6bzst\r\n" -"yhCiI8m9TtrhZw4MisaEaN/ll3XSjaOG2dvV6xMZCMV+5TeXDHOAZnY18Yi18vzz\r\n" -"4Ut2TnNFzizCECYNaA2fST3WgInnxUkV3YXAyP6CNxJaCmv2aA0yFr2kFVSeaKGt\r\n" -"ymvljNp2NVkvm7Th8fBQBO7I7AXhz43k0mR7XmPgewe8ApZOG3hstkOaMvbWAvWA\r\n" -"zCZupdDjZYjOJqlA4eEA4H8/w7F83r5CugeBE8LgEREjLPiyejrU5H1fubEY+h0d\r\n" -"l5HZBJ68ybTXfQ5U9o/QKA3dd0toBEhhdRUDGzWtjvwkEQfqF1reGWj/tod/gCpf\r\n" -"DFi6X0ECgYEA4wOv/pjSC3ty6TuOvKX2rOUiBrLXXv2JSxZnMoMiWI5ipLQt+RYT\r\n" -"VPafL/m7Dn6MbwjayOkcZhBwk5CNz5A6Q4lJ64Mq/lqHznRCQQ2Mc1G8eyDF/fYL\r\n" -"Ze2pLvwP9VD5jTc2miDfw+MnvJhywRRLcemDFP8k4hQVtm8PMp3ZmNECgYEA4gz7\r\n" -"wzObR4gn8ibe617uQPZjWzUj9dUHYd+in1gwBCIrtNnaRn9I9U/Q6tegRYpii4ys\r\n" -"c176NmU+umy6XmuSKV5qD9bSpZWG2nLFnslrN15Lm3fhZxoeMNhBaEDTnLT26yoi\r\n" -"33gp0mSSWy94ZEqipms+ULF6sY1ZtFW6tpGFoy8CgYAQHhnnvJflIs2ky4q10B60\r\n" -"ZcxFp3rtDpkp0JxhFLhiizFrujMtZSjYNm5U7KkgPVHhLELEUvCmOnKTt4ap/vZ0\r\n" -"BxJNe1GZH3pW6SAvGDQpl9sG7uu/vTFP+lCxukmzxB0DrrDcvorEkKMom7ZCCRvW\r\n" -"KZsZ6YeH2Z81BauRj218kQKBgQCUV/DgKP2985xDTT79N08jUo3hTP5MVYCCuj/+\r\n" -"UeEw1TvZcx3LJby7P6Xad6a1/BqveaGyFKIfEFIaBUBItk801sDDpDaYc4gL00Xc\r\n" -"7lFuBHOZkxJYlss5QrGpuOEl9ZwUt5IrFLBdYaKqNHzNVC1pCPfb/JyH6Dr2HUxq\r\n" -"gxUwAQKBgQCcU6G2L8AG9d9c0UpOyL1tMvFe5Ttw0KjlQVdsh1MP6yigYo9DYuwu\r\n" -"bHFVW2r0dBTqegP2/KTOxKzaHfC1qf0RGDsUoJCNJrd1cwoCLG8P2EF4w3OBrKqv\r\n" -"8u4ytY0F+Vlanj5lm3TaoHSVF1+NWPyOTiwevIECGKwSxvlki4fDAA==\r\n" -"-----END RSA PRIVATE KEY-----\r\n"; -const size_t mbedtls_test_cli_key_rsa_len = sizeof( mbedtls_test_cli_key_rsa ); -#endif /* MBEDTLS_RSA_C */ - -#if defined(MBEDTLS_PEM_PARSE_C) -/* Concatenation of all available CA certificates */ -const char mbedtls_test_cas_pem[] = -#ifdef TEST_CA_CRT_RSA_SHA1 - TEST_CA_CRT_RSA_SHA1 -#endif -#ifdef TEST_CA_CRT_RSA_SHA256 - TEST_CA_CRT_RSA_SHA256 -#endif -#ifdef TEST_CA_CRT_EC - TEST_CA_CRT_EC -#endif - ""; -const size_t mbedtls_test_cas_pem_len = sizeof( mbedtls_test_cas_pem ); -#endif - -/* List of all available CA certificates */ -const char * mbedtls_test_cas[] = { -#if defined(TEST_CA_CRT_RSA_SHA1) - mbedtls_test_ca_crt_rsa_sha1, -#endif -#if defined(TEST_CA_CRT_RSA_SHA256) - mbedtls_test_ca_crt_rsa_sha256, -#endif -#if defined(MBEDTLS_ECDSA_C) - mbedtls_test_ca_crt_ec, -#endif - NULL -}; -const size_t mbedtls_test_cas_len[] = { -#if defined(TEST_CA_CRT_RSA_SHA1) - sizeof( mbedtls_test_ca_crt_rsa_sha1 ), -#endif -#if defined(TEST_CA_CRT_RSA_SHA256) - sizeof( mbedtls_test_ca_crt_rsa_sha256 ), -#endif -#if defined(MBEDTLS_ECDSA_C) - sizeof( mbedtls_test_ca_crt_ec ), -#endif - 0 -}; - -#if defined(MBEDTLS_RSA_C) -const char *mbedtls_test_ca_crt = mbedtls_test_ca_crt_rsa; /* SHA1 or SHA256 */ -const char *mbedtls_test_ca_key = mbedtls_test_ca_key_rsa; -const char *mbedtls_test_ca_pwd = mbedtls_test_ca_pwd_rsa; -const char *mbedtls_test_srv_crt = mbedtls_test_srv_crt_rsa; -const char *mbedtls_test_srv_key = mbedtls_test_srv_key_rsa; -const char *mbedtls_test_cli_crt = mbedtls_test_cli_crt_rsa; -const char *mbedtls_test_cli_key = mbedtls_test_cli_key_rsa; -const size_t mbedtls_test_ca_crt_len = sizeof( mbedtls_test_ca_crt_rsa ); -const size_t mbedtls_test_ca_key_len = sizeof( mbedtls_test_ca_key_rsa ); -const size_t mbedtls_test_ca_pwd_len = sizeof( mbedtls_test_ca_pwd_rsa ) - 1; -const size_t mbedtls_test_srv_crt_len = sizeof( mbedtls_test_srv_crt_rsa ); -const size_t mbedtls_test_srv_key_len = sizeof( mbedtls_test_srv_key_rsa ); -const size_t mbedtls_test_cli_crt_len = sizeof( mbedtls_test_cli_crt_rsa ); -const size_t mbedtls_test_cli_key_len = sizeof( mbedtls_test_cli_key_rsa ); -#else /* ! MBEDTLS_RSA_C, so MBEDTLS_ECDSA_C */ -const char *mbedtls_test_ca_crt = mbedtls_test_ca_crt_ec; -const char *mbedtls_test_ca_key = mbedtls_test_ca_key_ec; -const char *mbedtls_test_ca_pwd = mbedtls_test_ca_pwd_ec; -const char *mbedtls_test_srv_crt = mbedtls_test_srv_crt_ec; -const char *mbedtls_test_srv_key = mbedtls_test_srv_key_ec; -const char *mbedtls_test_cli_crt = mbedtls_test_cli_crt_ec; -const char *mbedtls_test_cli_key = mbedtls_test_cli_key_ec; -const size_t mbedtls_test_ca_crt_len = sizeof( mbedtls_test_ca_crt_ec ); -const size_t mbedtls_test_ca_key_len = sizeof( mbedtls_test_ca_key_ec ); -const size_t mbedtls_test_ca_pwd_len = sizeof( mbedtls_test_ca_pwd_ec ) - 1; -const size_t mbedtls_test_srv_crt_len = sizeof( mbedtls_test_srv_crt_ec ); -const size_t mbedtls_test_srv_key_len = sizeof( mbedtls_test_srv_key_ec ); -const size_t mbedtls_test_cli_crt_len = sizeof( mbedtls_test_cli_crt_ec ); -const size_t mbedtls_test_cli_key_len = sizeof( mbedtls_test_cli_key_ec ); -#endif /* MBEDTLS_RSA_C */ - -#endif /* MBEDTLS_CERTS_C */ diff --git a/library/debug.c b/library/debug.c deleted file mode 100644 index 0c46c0690..000000000 --- a/library/debug.c +++ /dev/null @@ -1,438 +0,0 @@ -/* - * Debugging routines - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_DEBUG_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_calloc calloc -#define mbedtls_free free -#define mbedtls_time_t time_t -#define mbedtls_snprintf snprintf -#define mbedtls_vsnprintf vsnprintf -#endif - -#include "mbedtls/debug.h" - -#include -#include -#include - -#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \ - !defined(inline) && !defined(__cplusplus) -#define inline __inline -#endif - -#define DEBUG_BUF_SIZE 512 - -static int debug_threshold = 0; - -void mbedtls_debug_set_threshold( int threshold ) -{ - debug_threshold = threshold; -} - -/* - * All calls to f_dbg must be made via this function - */ -static inline void debug_send_line( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *str ) -{ - /* - * If in a threaded environment, we need a thread identifier. - * Since there is no portable way to get one, use the address of the ssl - * context instead, as it shouldn't be shared between threads. - */ -#if defined(MBEDTLS_THREADING_C) - char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */ - mbedtls_snprintf( idstr, sizeof( idstr ), "%p: %s", (void*)ssl, str ); - ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, idstr ); -#else - ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); -#endif -} - -void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *format, ... ) -{ - va_list argp; - char str[DEBUG_BUF_SIZE]; - int ret; - - if( NULL == ssl || - NULL == ssl->conf || - NULL == ssl->conf->f_dbg || - level > debug_threshold ) - { - return; - } - - va_start( argp, format ); - ret = mbedtls_vsnprintf( str, DEBUG_BUF_SIZE, format, argp ); - va_end( argp ); - - if( ret >= 0 && ret < DEBUG_BUF_SIZE - 1 ) - { - str[ret] = '\n'; - str[ret + 1] = '\0'; - } - - debug_send_line( ssl, level, file, line, str ); -} - -void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, int ret ) -{ - char str[DEBUG_BUF_SIZE]; - - if( NULL == ssl || - NULL == ssl->conf || - NULL == ssl->conf->f_dbg || - level > debug_threshold ) - { - return; - } - - /* - * With non-blocking I/O and examples that just retry immediately, - * the logs would be quickly flooded with WANT_READ, so ignore that. - * Don't ignore WANT_WRITE however, since is is usually rare. - */ - if( ret == MBEDTLS_ERR_SSL_WANT_READ ) - return; - - mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)\n", - text, ret, -ret ); - - debug_send_line( ssl, level, file, line, str ); -} - -void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, const char *text, - const unsigned char *buf, size_t len ) -{ - char str[DEBUG_BUF_SIZE]; - char txt[17]; - size_t i, idx = 0; - - if( NULL == ssl || - NULL == ssl->conf || - NULL == ssl->conf->f_dbg || - level > debug_threshold ) - { - return; - } - - mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)\n", - text, (unsigned int) len ); - - debug_send_line( ssl, level, file, line, str ); - - idx = 0; - memset( txt, 0, sizeof( txt ) ); - for( i = 0; i < len; i++ ) - { - if( i >= 4096 ) - break; - - if( i % 16 == 0 ) - { - if( i > 0 ) - { - mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt ); - debug_send_line( ssl, level, file, line, str ); - - idx = 0; - memset( txt, 0, sizeof( txt ) ); - } - - idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, "%04x: ", - (unsigned int) i ); - - } - - idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", - (unsigned int) buf[i] ); - txt[i % 16] = ( buf[i] > 31 && buf[i] < 127 ) ? buf[i] : '.' ; - } - - if( len > 0 ) - { - for( /* i = i */; i % 16 != 0; i++ ) - idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " " ); - - mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt ); - debug_send_line( ssl, level, file, line, str ); - } -} - -#if defined(MBEDTLS_ECP_C) -void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, const mbedtls_ecp_point *X ) -{ - char str[DEBUG_BUF_SIZE]; - - if( NULL == ssl || - NULL == ssl->conf || - NULL == ssl->conf->f_dbg || - level > debug_threshold ) - { - return; - } - - mbedtls_snprintf( str, sizeof( str ), "%s(X)", text ); - mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->X ); - - mbedtls_snprintf( str, sizeof( str ), "%s(Y)", text ); - mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->Y ); -} -#endif /* MBEDTLS_ECP_C */ - -#if defined(MBEDTLS_BIGNUM_C) -void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, const mbedtls_mpi *X ) -{ - char str[DEBUG_BUF_SIZE]; - int j, k, zeros = 1; - size_t i, n, idx = 0; - - if( NULL == ssl || - NULL == ssl->conf || - NULL == ssl->conf->f_dbg || - NULL == X || - level > debug_threshold ) - { - return; - } - - for( n = X->n - 1; n > 0; n-- ) - if( X->p[n] != 0 ) - break; - - for( j = ( sizeof(mbedtls_mpi_uint) << 3 ) - 1; j >= 0; j-- ) - if( ( ( X->p[n] >> j ) & 1 ) != 0 ) - break; - - mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n", - text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) ); - - debug_send_line( ssl, level, file, line, str ); - - idx = 0; - for( i = n + 1, j = 0; i > 0; i-- ) - { - if( zeros && X->p[i - 1] == 0 ) - continue; - - for( k = sizeof( mbedtls_mpi_uint ) - 1; k >= 0; k-- ) - { - if( zeros && ( ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ) == 0 ) - continue; - else - zeros = 0; - - if( j % 16 == 0 ) - { - if( j > 0 ) - { - mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); - debug_send_line( ssl, level, file, line, str ); - idx = 0; - } - } - - idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", (unsigned int) - ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ); - - j++; - } - - } - - if( zeros == 1 ) - idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" ); - - mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); - debug_send_line( ssl, level, file, line, str ); -} -#endif /* MBEDTLS_BIGNUM_C */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -static void debug_print_pk( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, const mbedtls_pk_context *pk ) -{ - size_t i; - mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS]; - char name[16]; - - memset( items, 0, sizeof( items ) ); - - if( mbedtls_pk_debug( pk, items ) != 0 ) - { - debug_send_line( ssl, level, file, line, - "invalid PK context\n" ); - return; - } - - for( i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++ ) - { - if( items[i].type == MBEDTLS_PK_DEBUG_NONE ) - return; - - mbedtls_snprintf( name, sizeof( name ), "%s%s", text, items[i].name ); - name[sizeof( name ) - 1] = '\0'; - - if( items[i].type == MBEDTLS_PK_DEBUG_MPI ) - mbedtls_debug_print_mpi( ssl, level, file, line, name, items[i].value ); - else -#if defined(MBEDTLS_ECP_C) - if( items[i].type == MBEDTLS_PK_DEBUG_ECP ) - mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value ); - else -#endif - debug_send_line( ssl, level, file, line, - "should not happen\n" ); - } -} - -static void debug_print_line_by_line( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, const char *text ) -{ - char str[DEBUG_BUF_SIZE]; - const char *start, *cur; - - start = text; - for( cur = text; *cur != '\0'; cur++ ) - { - if( *cur == '\n' ) - { - size_t len = cur - start + 1; - if( len > DEBUG_BUF_SIZE - 1 ) - len = DEBUG_BUF_SIZE - 1; - - memcpy( str, start, len ); - str[len] = '\0'; - - debug_send_line( ssl, level, file, line, str ); - - start = cur + 1; - } - } -} - -void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const char *text, const mbedtls_x509_crt *crt ) -{ - char str[DEBUG_BUF_SIZE]; - int i = 0; - - if( NULL == ssl || - NULL == ssl->conf || - NULL == ssl->conf->f_dbg || - NULL == crt || - level > debug_threshold ) - { - return; - } - - while( crt != NULL ) - { - char buf[1024]; - - mbedtls_snprintf( str, sizeof( str ), "%s #%d:\n", text, ++i ); - debug_send_line( ssl, level, file, line, str ); - - mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt ); - debug_print_line_by_line( ssl, level, file, line, buf ); - - debug_print_pk( ssl, level, file, line, "crt->", &crt->pk ); - - crt = crt->next; - } -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_ECDH_C) -static void mbedtls_debug_printf_ecdh_internal( const mbedtls_ssl_context *ssl, - int level, const char *file, - int line, - const mbedtls_ecdh_context *ecdh, - mbedtls_debug_ecdh_attr attr ) -{ -#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT) - const mbedtls_ecdh_context* ctx = ecdh; -#else - const mbedtls_ecdh_context_mbed* ctx = &ecdh->ctx.mbed_ecdh; -#endif - - switch( attr ) - { - case MBEDTLS_DEBUG_ECDH_Q: - mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Q", - &ctx->Q ); - break; - case MBEDTLS_DEBUG_ECDH_QP: - mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Qp", - &ctx->Qp ); - break; - case MBEDTLS_DEBUG_ECDH_Z: - mbedtls_debug_print_mpi( ssl, level, file, line, "ECDH: z", - &ctx->z ); - break; - default: - break; - } -} - -void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level, - const char *file, int line, - const mbedtls_ecdh_context *ecdh, - mbedtls_debug_ecdh_attr attr ) -{ -#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT) - mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh, attr ); -#else - switch( ecdh->var ) - { - default: - mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh, - attr ); - } -#endif -} -#endif /* MBEDTLS_ECDH_C */ - -#endif /* MBEDTLS_DEBUG_C */ diff --git a/library/error.c b/library/error.c index c596f0bcc..7d7155ba0 100644 --- a/library/error.c +++ b/library/error.c @@ -137,10 +137,6 @@ #include "mbedtls/md5.h" #endif -#if defined(MBEDTLS_NET_C) -#include "mbedtls/net_sockets.h" -#endif - #if defined(MBEDTLS_OID_C) #include "mbedtls/oid.h" #endif @@ -193,18 +189,10 @@ #include "mbedtls/sha512.h" #endif -#if defined(MBEDTLS_SSL_TLS_C) -#include "mbedtls/ssl.h" -#endif - #if defined(MBEDTLS_THREADING_C) #include "mbedtls/threading.h" #endif -#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) -#include "mbedtls/x509.h" -#endif - #if defined(MBEDTLS_XTEA_C) #include "mbedtls/xtea.h" #endif @@ -410,165 +398,6 @@ void mbedtls_strerror( int ret, char *buf, size_t buflen ) if( use_ret == -(MBEDTLS_ERR_RSA_HW_ACCEL_FAILED) ) mbedtls_snprintf( buf, buflen, "RSA - RSA hardware accelerator failed" ); #endif /* MBEDTLS_RSA_C */ - -#if defined(MBEDTLS_SSL_TLS_C) - if( use_ret == -(MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) ) - mbedtls_snprintf( buf, buflen, "SSL - The requested feature is not available" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_INPUT_DATA) ) - mbedtls_snprintf( buf, buflen, "SSL - Bad input parameters to function" ); - if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_MAC) ) - mbedtls_snprintf( buf, buflen, "SSL - Verification of the message MAC failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_RECORD) ) - mbedtls_snprintf( buf, buflen, "SSL - An invalid SSL record was received" ); - if( use_ret == -(MBEDTLS_ERR_SSL_CONN_EOF) ) - mbedtls_snprintf( buf, buflen, "SSL - The connection indicated an EOF" ); - if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_CIPHER) ) - mbedtls_snprintf( buf, buflen, "SSL - An unknown cipher was received" ); - if( use_ret == -(MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN) ) - mbedtls_snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" ); - if( use_ret == -(MBEDTLS_ERR_SSL_NO_RNG) ) - mbedtls_snprintf( buf, buflen, "SSL - No RNG was provided to the SSL module" ); - if( use_ret == -(MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE) ) - mbedtls_snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" ); - if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE) ) - mbedtls_snprintf( buf, buflen, "SSL - Our own certificate(s) is/are too large to send in an SSL message" ); - if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED) ) - mbedtls_snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" ); - if( use_ret == -(MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) ) - mbedtls_snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED) ) - mbedtls_snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" ); - if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) ) - mbedtls_snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" ); - if( use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE) ) - { - mbedtls_snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" ); - return; - } - if( use_ret == -(MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED) ) - mbedtls_snprintf( buf, buflen, "SSL - Verification of our peer failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) ) - mbedtls_snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_FINISHED) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_ALLOC_FAILED) ) - mbedtls_snprintf( buf, buflen, "SSL - Memory allocation failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FAILED) ) - mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" ); - if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH) ) - mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" ); - if( use_ret == -(MBEDTLS_ERR_SSL_COMPRESSION_FAILED) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION) ) - mbedtls_snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET) ) - mbedtls_snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" ); - if( use_ret == -(MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) ) - mbedtls_snprintf( buf, buflen, "SSL - Session ticket has expired" ); - if( use_ret == -(MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH) ) - mbedtls_snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" ); - if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) ) - mbedtls_snprintf( buf, buflen, "SSL - Unknown identity received (eg, PSK identity)" ); - if( use_ret == -(MBEDTLS_ERR_SSL_INTERNAL_ERROR) ) - mbedtls_snprintf( buf, buflen, "SSL - Internal error (eg, unexpected failure in lower-level module)" ); - if( use_ret == -(MBEDTLS_ERR_SSL_COUNTER_WRAPPING) ) - mbedtls_snprintf( buf, buflen, "SSL - A counter would wrap (eg, too many messages exchanged)" ); - if( use_ret == -(MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO) ) - mbedtls_snprintf( buf, buflen, "SSL - Unexpected message at ServerHello in renegotiation" ); - if( use_ret == -(MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) ) - mbedtls_snprintf( buf, buflen, "SSL - DTLS client must retry for hello verification" ); - if( use_ret == -(MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) ) - mbedtls_snprintf( buf, buflen, "SSL - A buffer is too small to receive or write a message" ); - if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) ) - mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" ); - if( use_ret == -(MBEDTLS_ERR_SSL_WANT_READ) ) - mbedtls_snprintf( buf, buflen, "SSL - No data of requested type currently available on underlying transport" ); - if( use_ret == -(MBEDTLS_ERR_SSL_WANT_WRITE) ) - mbedtls_snprintf( buf, buflen, "SSL - Connection requires a write call" ); - if( use_ret == -(MBEDTLS_ERR_SSL_TIMEOUT) ) - mbedtls_snprintf( buf, buflen, "SSL - The operation timed out" ); - if( use_ret == -(MBEDTLS_ERR_SSL_CLIENT_RECONNECT) ) - mbedtls_snprintf( buf, buflen, "SSL - The client initiated a reconnect from the same port" ); - if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_RECORD) ) - mbedtls_snprintf( buf, buflen, "SSL - Record header looks valid but is not expected" ); - if( use_ret == -(MBEDTLS_ERR_SSL_NON_FATAL) ) - mbedtls_snprintf( buf, buflen, "SSL - The alert message received indicates a non-fatal error" ); - if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH) ) - mbedtls_snprintf( buf, buflen, "SSL - Couldn't set the hash for verifying CertificateVerify" ); - if( use_ret == -(MBEDTLS_ERR_SSL_CONTINUE_PROCESSING) ) - mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signaling that further message-processing should be done" ); - if( use_ret == -(MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS) ) - mbedtls_snprintf( buf, buflen, "SSL - The asynchronous operation is not completed yet" ); - if( use_ret == -(MBEDTLS_ERR_SSL_EARLY_MESSAGE) ) - mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signaling that a message arrived early" ); - if( use_ret == -(MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) ) - mbedtls_snprintf( buf, buflen, "SSL - A cryptographic operation is in progress. Try again later" ); -#endif /* MBEDTLS_SSL_TLS_C */ - -#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C) - if( use_ret == -(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE) ) - mbedtls_snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" ); - if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_OID) ) - mbedtls_snprintf( buf, buflen, "X509 - Requested OID is unknown" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_FORMAT) ) - mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR format is invalid, e.g. different type expected" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_VERSION) ) - mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR version element is invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SERIAL) ) - mbedtls_snprintf( buf, buflen, "X509 - The serial tag or value is invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_ALG) ) - mbedtls_snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_NAME) ) - mbedtls_snprintf( buf, buflen, "X509 - The name tag or value is invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_DATE) ) - mbedtls_snprintf( buf, buflen, "X509 - The date tag or value is invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SIGNATURE) ) - mbedtls_snprintf( buf, buflen, "X509 - The signature tag or value invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_INVALID_EXTENSIONS) ) - mbedtls_snprintf( buf, buflen, "X509 - The extension tag or value is invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_VERSION) ) - mbedtls_snprintf( buf, buflen, "X509 - CRT/CRL/CSR has an unsupported version number" ); - if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG) ) - mbedtls_snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" ); - if( use_ret == -(MBEDTLS_ERR_X509_SIG_MISMATCH) ) - mbedtls_snprintf( buf, buflen, "X509 - Signature algorithms do not match. (see \\c ::mbedtls_x509_crt sig_oid)" ); - if( use_ret == -(MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) ) - mbedtls_snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" ); - if( use_ret == -(MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT) ) - mbedtls_snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" ); - if( use_ret == -(MBEDTLS_ERR_X509_BAD_INPUT_DATA) ) - mbedtls_snprintf( buf, buflen, "X509 - Input invalid" ); - if( use_ret == -(MBEDTLS_ERR_X509_ALLOC_FAILED) ) - mbedtls_snprintf( buf, buflen, "X509 - Allocation of memory failed" ); - if( use_ret == -(MBEDTLS_ERR_X509_FILE_IO_ERROR) ) - mbedtls_snprintf( buf, buflen, "X509 - Read/write of file failed" ); - if( use_ret == -(MBEDTLS_ERR_X509_BUFFER_TOO_SMALL) ) - mbedtls_snprintf( buf, buflen, "X509 - Destination buffer is too small" ); - if( use_ret == -(MBEDTLS_ERR_X509_FATAL_ERROR) ) - mbedtls_snprintf( buf, buflen, "X509 - A fatal error occurred, eg the chain is too long or the vrfy callback failed" ); -#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */ // END generated code if( strlen( buf ) == 0 ) @@ -790,35 +619,6 @@ void mbedtls_strerror( int ret, char *buf, size_t buflen ) mbedtls_snprintf( buf, buflen, "MD5 - MD5 hardware accelerator failed" ); #endif /* MBEDTLS_MD5_C */ -#if defined(MBEDTLS_NET_C) - if( use_ret == -(MBEDTLS_ERR_NET_SOCKET_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - Failed to open a socket" ); - if( use_ret == -(MBEDTLS_ERR_NET_CONNECT_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - The connection to the given server / port failed" ); - if( use_ret == -(MBEDTLS_ERR_NET_BIND_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - Binding of the socket failed" ); - if( use_ret == -(MBEDTLS_ERR_NET_LISTEN_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - Could not listen on the socket" ); - if( use_ret == -(MBEDTLS_ERR_NET_ACCEPT_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - Could not accept the incoming connection" ); - if( use_ret == -(MBEDTLS_ERR_NET_RECV_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - Reading information from the socket failed" ); - if( use_ret == -(MBEDTLS_ERR_NET_SEND_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - Sending information through the socket failed" ); - if( use_ret == -(MBEDTLS_ERR_NET_CONN_RESET) ) - mbedtls_snprintf( buf, buflen, "NET - Connection was reset by peer" ); - if( use_ret == -(MBEDTLS_ERR_NET_UNKNOWN_HOST) ) - mbedtls_snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" ); - if( use_ret == -(MBEDTLS_ERR_NET_BUFFER_TOO_SMALL) ) - mbedtls_snprintf( buf, buflen, "NET - Buffer is too small to hold the data" ); - if( use_ret == -(MBEDTLS_ERR_NET_INVALID_CONTEXT) ) - mbedtls_snprintf( buf, buflen, "NET - The context is invalid, eg because it was free()ed" ); - if( use_ret == -(MBEDTLS_ERR_NET_POLL_FAILED) ) - mbedtls_snprintf( buf, buflen, "NET - Polling the net context failed" ); - if( use_ret == -(MBEDTLS_ERR_NET_BAD_INPUT_DATA) ) - mbedtls_snprintf( buf, buflen, "NET - Input invalid" ); -#endif /* MBEDTLS_NET_C */ - #if defined(MBEDTLS_OID_C) if( use_ret == -(MBEDTLS_ERR_OID_NOT_FOUND) ) mbedtls_snprintf( buf, buflen, "OID - OID is not found" ); diff --git a/library/net_sockets.c b/library/net_sockets.c deleted file mode 100644 index 816b1303d..000000000 --- a/library/net_sockets.c +++ /dev/null @@ -1,668 +0,0 @@ -/* - * TCP/IP or UDP/IP networking functions - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -/* Enable definition of getaddrinfo() even when compiling with -std=c99. Must - * be set before config.h, which pulls in glibc's features.h indirectly. - * Harmless on other platforms. */ -#define _POSIX_C_SOURCE 200112L - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_NET_C) - -#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \ - !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \ - !defined(__HAIKU__) -#error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h" -#endif - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#endif - -#include "mbedtls/net_sockets.h" - -#include - -#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \ - !defined(EFI32) - -#define IS_EINTR( ret ) ( ( ret ) == WSAEINTR ) - -#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501) -#undef _WIN32_WINNT -/* Enables getaddrinfo() & Co */ -#define _WIN32_WINNT 0x0501 -#endif - -#include - -#include -#include - -#if defined(_MSC_VER) -#if defined(_WIN32_WCE) -#pragma comment( lib, "ws2.lib" ) -#else -#pragma comment( lib, "ws2_32.lib" ) -#endif -#endif /* _MSC_VER */ - -#define read(fd,buf,len) recv( fd, (char*)( buf ), (int)( len ), 0 ) -#define write(fd,buf,len) send( fd, (char*)( buf ), (int)( len ), 0 ) -#define close(fd) closesocket(fd) - -static int wsa_init_done = 0; - -#else /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define IS_EINTR( ret ) ( ( ret ) == EINTR ) - -#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */ - -/* Some MS functions want int and MSVC warns if we pass size_t, - * but the standard functions use socklen_t, so cast only for MSVC */ -#if defined(_MSC_VER) -#define MSVC_INT_CAST (int) -#else -#define MSVC_INT_CAST -#endif - -#include - -#include - -#include - -/* - * Prepare for using the sockets interface - */ -static int net_prepare( void ) -{ -#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ - !defined(EFI32) - WSADATA wsaData; - - if( wsa_init_done == 0 ) - { - if( WSAStartup( MAKEWORD(2,0), &wsaData ) != 0 ) - return( MBEDTLS_ERR_NET_SOCKET_FAILED ); - - wsa_init_done = 1; - } -#else -#if !defined(EFIX64) && !defined(EFI32) - signal( SIGPIPE, SIG_IGN ); -#endif -#endif - return( 0 ); -} - -/* - * Initialize a context - */ -void mbedtls_net_init( mbedtls_net_context *ctx ) -{ - ctx->fd = -1; -} - -/* - * Initiate a TCP connection with host:port and the given protocol - */ -int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, - const char *port, int proto ) -{ - int ret; - struct addrinfo hints, *addr_list, *cur; - - if( ( ret = net_prepare() ) != 0 ) - return( ret ); - - /* Do name resolution with both IPv6 and IPv4 */ - memset( &hints, 0, sizeof( hints ) ); - hints.ai_family = AF_UNSPEC; - hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM; - hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP; - - if( getaddrinfo( host, port, &hints, &addr_list ) != 0 ) - return( MBEDTLS_ERR_NET_UNKNOWN_HOST ); - - /* Try the sockaddrs until a connection succeeds */ - ret = MBEDTLS_ERR_NET_UNKNOWN_HOST; - for( cur = addr_list; cur != NULL; cur = cur->ai_next ) - { - ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype, - cur->ai_protocol ); - if( ctx->fd < 0 ) - { - ret = MBEDTLS_ERR_NET_SOCKET_FAILED; - continue; - } - - if( connect( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) == 0 ) - { - ret = 0; - break; - } - - close( ctx->fd ); - ret = MBEDTLS_ERR_NET_CONNECT_FAILED; - } - - freeaddrinfo( addr_list ); - - return( ret ); -} - -/* - * Create a listening socket on bind_ip:port - */ -int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto ) -{ - int n, ret; - struct addrinfo hints, *addr_list, *cur; - - if( ( ret = net_prepare() ) != 0 ) - return( ret ); - - /* Bind to IPv6 and/or IPv4, but only in the desired protocol */ - memset( &hints, 0, sizeof( hints ) ); - hints.ai_family = AF_UNSPEC; - hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM; - hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP; - if( bind_ip == NULL ) - hints.ai_flags = AI_PASSIVE; - - if( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 ) - return( MBEDTLS_ERR_NET_UNKNOWN_HOST ); - - /* Try the sockaddrs until a binding succeeds */ - ret = MBEDTLS_ERR_NET_UNKNOWN_HOST; - for( cur = addr_list; cur != NULL; cur = cur->ai_next ) - { - ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype, - cur->ai_protocol ); - if( ctx->fd < 0 ) - { - ret = MBEDTLS_ERR_NET_SOCKET_FAILED; - continue; - } - - n = 1; - if( setsockopt( ctx->fd, SOL_SOCKET, SO_REUSEADDR, - (const char *) &n, sizeof( n ) ) != 0 ) - { - close( ctx->fd ); - ret = MBEDTLS_ERR_NET_SOCKET_FAILED; - continue; - } - - if( bind( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) != 0 ) - { - close( ctx->fd ); - ret = MBEDTLS_ERR_NET_BIND_FAILED; - continue; - } - - /* Listen only makes sense for TCP */ - if( proto == MBEDTLS_NET_PROTO_TCP ) - { - if( listen( ctx->fd, MBEDTLS_NET_LISTEN_BACKLOG ) != 0 ) - { - close( ctx->fd ); - ret = MBEDTLS_ERR_NET_LISTEN_FAILED; - continue; - } - } - - /* Bind was successful */ - ret = 0; - break; - } - - freeaddrinfo( addr_list ); - - return( ret ); - -} - -#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ - !defined(EFI32) -/* - * Check if the requested operation would be blocking on a non-blocking socket - * and thus 'failed' with a negative return value. - */ -static int net_would_block( const mbedtls_net_context *ctx ) -{ - ((void) ctx); - return( WSAGetLastError() == WSAEWOULDBLOCK ); -} -#else -/* - * Check if the requested operation would be blocking on a non-blocking socket - * and thus 'failed' with a negative return value. - * - * Note: on a blocking socket this function always returns 0! - */ -static int net_would_block( const mbedtls_net_context *ctx ) -{ - int err = errno; - - /* - * Never return 'WOULD BLOCK' on a non-blocking socket - */ - if( ( fcntl( ctx->fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK ) - { - errno = err; - return( 0 ); - } - - switch( errno = err ) - { -#if defined EAGAIN - case EAGAIN: -#endif -#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN - case EWOULDBLOCK: -#endif - return( 1 ); - } - return( 0 ); -} -#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */ - -/* - * Accept a connection from a remote client - */ -int mbedtls_net_accept( mbedtls_net_context *bind_ctx, - mbedtls_net_context *client_ctx, - void *client_ip, size_t buf_size, size_t *ip_len ) -{ - int ret; - int type; - - struct sockaddr_storage client_addr; - -#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) || \ - defined(_SOCKLEN_T_DECLARED) || defined(__DEFINED_socklen_t) - socklen_t n = (socklen_t) sizeof( client_addr ); - socklen_t type_len = (socklen_t) sizeof( type ); -#else - int n = (int) sizeof( client_addr ); - int type_len = (int) sizeof( type ); -#endif - - /* Is this a TCP or UDP socket? */ - if( getsockopt( bind_ctx->fd, SOL_SOCKET, SO_TYPE, - (void *) &type, &type_len ) != 0 || - ( type != SOCK_STREAM && type != SOCK_DGRAM ) ) - { - return( MBEDTLS_ERR_NET_ACCEPT_FAILED ); - } - - if( type == SOCK_STREAM ) - { - /* TCP: actual accept() */ - ret = client_ctx->fd = (int) accept( bind_ctx->fd, - (struct sockaddr *) &client_addr, &n ); - } - else - { - /* UDP: wait for a message, but keep it in the queue */ - char buf[1] = { 0 }; - - ret = (int) recvfrom( bind_ctx->fd, buf, sizeof( buf ), MSG_PEEK, - (struct sockaddr *) &client_addr, &n ); - -#if defined(_WIN32) - if( ret == SOCKET_ERROR && - WSAGetLastError() == WSAEMSGSIZE ) - { - /* We know buf is too small, thanks, just peeking here */ - ret = 0; - } -#endif - } - - if( ret < 0 ) - { - if( net_would_block( bind_ctx ) != 0 ) - return( MBEDTLS_ERR_SSL_WANT_READ ); - - return( MBEDTLS_ERR_NET_ACCEPT_FAILED ); - } - - /* UDP: hijack the listening socket to communicate with the client, - * then bind a new socket to accept new connections */ - if( type != SOCK_STREAM ) - { - struct sockaddr_storage local_addr; - int one = 1; - - if( connect( bind_ctx->fd, (struct sockaddr *) &client_addr, n ) != 0 ) - return( MBEDTLS_ERR_NET_ACCEPT_FAILED ); - - client_ctx->fd = bind_ctx->fd; - bind_ctx->fd = -1; /* In case we exit early */ - - n = sizeof( struct sockaddr_storage ); - if( getsockname( client_ctx->fd, - (struct sockaddr *) &local_addr, &n ) != 0 || - ( bind_ctx->fd = (int) socket( local_addr.ss_family, - SOCK_DGRAM, IPPROTO_UDP ) ) < 0 || - setsockopt( bind_ctx->fd, SOL_SOCKET, SO_REUSEADDR, - (const char *) &one, sizeof( one ) ) != 0 ) - { - return( MBEDTLS_ERR_NET_SOCKET_FAILED ); - } - - if( bind( bind_ctx->fd, (struct sockaddr *) &local_addr, n ) != 0 ) - { - return( MBEDTLS_ERR_NET_BIND_FAILED ); - } - } - - if( client_ip != NULL ) - { - if( client_addr.ss_family == AF_INET ) - { - struct sockaddr_in *addr4 = (struct sockaddr_in *) &client_addr; - *ip_len = sizeof( addr4->sin_addr.s_addr ); - - if( buf_size < *ip_len ) - return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL ); - - memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len ); - } - else - { - struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) &client_addr; - *ip_len = sizeof( addr6->sin6_addr.s6_addr ); - - if( buf_size < *ip_len ) - return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL ); - - memcpy( client_ip, &addr6->sin6_addr.s6_addr, *ip_len); - } - } - - return( 0 ); -} - -/* - * Set the socket blocking or non-blocking - */ -int mbedtls_net_set_block( mbedtls_net_context *ctx ) -{ -#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ - !defined(EFI32) - u_long n = 0; - return( ioctlsocket( ctx->fd, FIONBIO, &n ) ); -#else - return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) & ~O_NONBLOCK ) ); -#endif -} - -int mbedtls_net_set_nonblock( mbedtls_net_context *ctx ) -{ -#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ - !defined(EFI32) - u_long n = 1; - return( ioctlsocket( ctx->fd, FIONBIO, &n ) ); -#else - return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) | O_NONBLOCK ) ); -#endif -} - -/* - * Check if data is available on the socket - */ - -int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout ) -{ - int ret; - struct timeval tv; - - fd_set read_fds; - fd_set write_fds; - - int fd = ctx->fd; - - if( fd < 0 ) - return( MBEDTLS_ERR_NET_INVALID_CONTEXT ); - -#if defined(__has_feature) -#if __has_feature(memory_sanitizer) - /* Ensure that memory sanitizers consider read_fds and write_fds as - * initialized even on platforms such as Glibc/x86_64 where FD_ZERO - * is implemented in assembly. */ - memset( &read_fds, 0, sizeof( read_fds ) ); - memset( &write_fds, 0, sizeof( write_fds ) ); -#endif -#endif - - FD_ZERO( &read_fds ); - if( rw & MBEDTLS_NET_POLL_READ ) - { - rw &= ~MBEDTLS_NET_POLL_READ; - FD_SET( fd, &read_fds ); - } - - FD_ZERO( &write_fds ); - if( rw & MBEDTLS_NET_POLL_WRITE ) - { - rw &= ~MBEDTLS_NET_POLL_WRITE; - FD_SET( fd, &write_fds ); - } - - if( rw != 0 ) - return( MBEDTLS_ERR_NET_BAD_INPUT_DATA ); - - tv.tv_sec = timeout / 1000; - tv.tv_usec = ( timeout % 1000 ) * 1000; - - do - { - ret = select( fd + 1, &read_fds, &write_fds, NULL, - timeout == (uint32_t) -1 ? NULL : &tv ); - } - while( IS_EINTR( ret ) ); - - if( ret < 0 ) - return( MBEDTLS_ERR_NET_POLL_FAILED ); - - ret = 0; - if( FD_ISSET( fd, &read_fds ) ) - ret |= MBEDTLS_NET_POLL_READ; - if( FD_ISSET( fd, &write_fds ) ) - ret |= MBEDTLS_NET_POLL_WRITE; - - return( ret ); -} - -/* - * Portable usleep helper - */ -void mbedtls_net_usleep( unsigned long usec ) -{ -#if defined(_WIN32) - Sleep( ( usec + 999 ) / 1000 ); -#else - struct timeval tv; - tv.tv_sec = usec / 1000000; -#if defined(__unix__) || defined(__unix) || \ - ( defined(__APPLE__) && defined(__MACH__) ) - tv.tv_usec = (suseconds_t) usec % 1000000; -#else - tv.tv_usec = usec % 1000000; -#endif - select( 0, NULL, NULL, NULL, &tv ); -#endif -} - -/* - * Read at most 'len' characters - */ -int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len ) -{ - int ret; - int fd = ((mbedtls_net_context *) ctx)->fd; - - if( fd < 0 ) - return( MBEDTLS_ERR_NET_INVALID_CONTEXT ); - - ret = (int) read( fd, buf, len ); - - if( ret < 0 ) - { - if( net_would_block( ctx ) != 0 ) - return( MBEDTLS_ERR_SSL_WANT_READ ); - -#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ - !defined(EFI32) - if( WSAGetLastError() == WSAECONNRESET ) - return( MBEDTLS_ERR_NET_CONN_RESET ); -#else - if( errno == EPIPE || errno == ECONNRESET ) - return( MBEDTLS_ERR_NET_CONN_RESET ); - - if( errno == EINTR ) - return( MBEDTLS_ERR_SSL_WANT_READ ); -#endif - - return( MBEDTLS_ERR_NET_RECV_FAILED ); - } - - return( ret ); -} - -/* - * Read at most 'len' characters, blocking for at most 'timeout' ms - */ -int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, - size_t len, uint32_t timeout ) -{ - int ret; - struct timeval tv; - fd_set read_fds; - int fd = ((mbedtls_net_context *) ctx)->fd; - - if( fd < 0 ) - return( MBEDTLS_ERR_NET_INVALID_CONTEXT ); - - FD_ZERO( &read_fds ); - FD_SET( fd, &read_fds ); - - tv.tv_sec = timeout / 1000; - tv.tv_usec = ( timeout % 1000 ) * 1000; - - ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv ); - - /* Zero fds ready means we timed out */ - if( ret == 0 ) - return( MBEDTLS_ERR_SSL_TIMEOUT ); - - if( ret < 0 ) - { -#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ - !defined(EFI32) - if( WSAGetLastError() == WSAEINTR ) - return( MBEDTLS_ERR_SSL_WANT_READ ); -#else - if( errno == EINTR ) - return( MBEDTLS_ERR_SSL_WANT_READ ); -#endif - - return( MBEDTLS_ERR_NET_RECV_FAILED ); - } - - /* This call will not block */ - return( mbedtls_net_recv( ctx, buf, len ) ); -} - -/* - * Write at most 'len' characters - */ -int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len ) -{ - int ret; - int fd = ((mbedtls_net_context *) ctx)->fd; - - if( fd < 0 ) - return( MBEDTLS_ERR_NET_INVALID_CONTEXT ); - - ret = (int) write( fd, buf, len ); - - if( ret < 0 ) - { - if( net_would_block( ctx ) != 0 ) - return( MBEDTLS_ERR_SSL_WANT_WRITE ); - -#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \ - !defined(EFI32) - if( WSAGetLastError() == WSAECONNRESET ) - return( MBEDTLS_ERR_NET_CONN_RESET ); -#else - if( errno == EPIPE || errno == ECONNRESET ) - return( MBEDTLS_ERR_NET_CONN_RESET ); - - if( errno == EINTR ) - return( MBEDTLS_ERR_SSL_WANT_WRITE ); -#endif - - return( MBEDTLS_ERR_NET_SEND_FAILED ); - } - - return( ret ); -} - -/* - * Gracefully close the connection - */ -void mbedtls_net_free( mbedtls_net_context *ctx ) -{ - if( ctx->fd == -1 ) - return; - - shutdown( ctx->fd, 2 ); - close( ctx->fd ); - - ctx->fd = -1; -} - -#endif /* MBEDTLS_NET_C */ diff --git a/library/pkcs11.c b/library/pkcs11.c deleted file mode 100644 index 0ea64252e..000000000 --- a/library/pkcs11.c +++ /dev/null @@ -1,240 +0,0 @@ -/** - * \file pkcs11.c - * - * \brief Wrapper for PKCS#11 library libpkcs11-helper - * - * \author Adriaan de Jong - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#include "mbedtls/pkcs11.h" - -#if defined(MBEDTLS_PKCS11_C) - -#include "mbedtls/md.h" -#include "mbedtls/oid.h" -#include "mbedtls/x509_crt.h" - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include - -void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx ) -{ - memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) ); -} - -int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert ) -{ - int ret = 1; - unsigned char *cert_blob = NULL; - size_t cert_blob_size = 0; - - if( cert == NULL ) - { - ret = 2; - goto cleanup; - } - - if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL, - &cert_blob_size ) != CKR_OK ) - { - ret = 3; - goto cleanup; - } - - cert_blob = mbedtls_calloc( 1, cert_blob_size ); - if( NULL == cert_blob ) - { - ret = 4; - goto cleanup; - } - - if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob, - &cert_blob_size ) != CKR_OK ) - { - ret = 5; - goto cleanup; - } - - if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) ) - { - ret = 6; - goto cleanup; - } - - ret = 0; - -cleanup: - if( NULL != cert_blob ) - mbedtls_free( cert_blob ); - - return( ret ); -} - - -int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key, - pkcs11h_certificate_t pkcs11_cert ) -{ - int ret = 1; - mbedtls_x509_crt cert; - - mbedtls_x509_crt_init( &cert ); - - if( priv_key == NULL ) - goto cleanup; - - if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) ) - goto cleanup; - - priv_key->len = mbedtls_pk_get_len( &cert.pk ); - priv_key->pkcs11h_cert = pkcs11_cert; - - ret = 0; - -cleanup: - mbedtls_x509_crt_free( &cert ); - - return( ret ); -} - -void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key ) -{ - if( NULL != priv_key ) - pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert ); -} - -int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx, - int mode, size_t *olen, - const unsigned char *input, - unsigned char *output, - size_t output_max_len ) -{ - size_t input_len, output_len; - - if( NULL == ctx ) - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - - if( MBEDTLS_RSA_PRIVATE != mode ) - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - - output_len = input_len = ctx->len; - - if( input_len < 16 || input_len > output_max_len ) - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - - /* Determine size of output buffer */ - if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input, - input_len, NULL, &output_len ) != CKR_OK ) - { - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - } - - if( output_len > output_max_len ) - return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); - - if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input, - input_len, output, &output_len ) != CKR_OK ) - { - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - } - *olen = output_len; - return( 0 ); -} - -int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx, - int mode, - mbedtls_md_type_t md_alg, - unsigned int hashlen, - const unsigned char *hash, - unsigned char *sig ) -{ - size_t sig_len = 0, asn_len = 0, oid_size = 0; - unsigned char *p = sig; - const char *oid; - - if( NULL == ctx ) - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - - if( MBEDTLS_RSA_PRIVATE != mode ) - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - - if( md_alg != MBEDTLS_MD_NONE ) - { - const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg ); - if( md_info == NULL ) - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - - if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 ) - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - - hashlen = mbedtls_md_get_size( md_info ); - asn_len = 10 + oid_size; - } - - sig_len = ctx->len; - if( hashlen > sig_len || asn_len > sig_len || - hashlen + asn_len > sig_len ) - { - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - } - - if( md_alg != MBEDTLS_MD_NONE ) - { - /* - * DigestInfo ::= SEQUENCE { - * digestAlgorithm DigestAlgorithmIdentifier, - * digest Digest } - * - * DigestAlgorithmIdentifier ::= AlgorithmIdentifier - * - * Digest ::= OCTET STRING - */ - *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; - *p++ = (unsigned char) ( 0x08 + oid_size + hashlen ); - *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED; - *p++ = (unsigned char) ( 0x04 + oid_size ); - *p++ = MBEDTLS_ASN1_OID; - *p++ = oid_size & 0xFF; - memcpy( p, oid, oid_size ); - p += oid_size; - *p++ = MBEDTLS_ASN1_NULL; - *p++ = 0x00; - *p++ = MBEDTLS_ASN1_OCTET_STRING; - *p++ = hashlen; - } - - memcpy( p, hash, hashlen ); - - if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig, - asn_len + hashlen, sig, &sig_len ) != CKR_OK ) - { - return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); - } - - return( 0 ); -} - -#endif /* defined(MBEDTLS_PKCS11_C) */ diff --git a/library/ssl_cache.c b/library/ssl_cache.c deleted file mode 100644 index 62a0a2987..000000000 --- a/library/ssl_cache.c +++ /dev/null @@ -1,353 +0,0 @@ -/* - * SSL session cache implementation - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * These session callbacks use a simple chained list - * to store and retrieve the session information. - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_SSL_CACHE_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include "mbedtls/ssl_cache.h" -#include "mbedtls/ssl_internal.h" - -#include - -void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache ) -{ - memset( cache, 0, sizeof( mbedtls_ssl_cache_context ) ); - - cache->timeout = MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT; - cache->max_entries = MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES; - -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_init( &cache->mutex ); -#endif -} - -int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session ) -{ - int ret = 1; -#if defined(MBEDTLS_HAVE_TIME) - mbedtls_time_t t = mbedtls_time( NULL ); -#endif - mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data; - mbedtls_ssl_cache_entry *cur, *entry; - -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_lock( &cache->mutex ) != 0 ) - return( 1 ); -#endif - - cur = cache->chain; - entry = NULL; - - while( cur != NULL ) - { - entry = cur; - cur = cur->next; - -#if defined(MBEDTLS_HAVE_TIME) - if( cache->timeout != 0 && - (int) ( t - entry->timestamp ) > cache->timeout ) - continue; -#endif - - if( session->ciphersuite != entry->session.ciphersuite || - session->compression != entry->session.compression || - session->id_len != entry->session.id_len ) - continue; - - if( memcmp( session->id, entry->session.id, - entry->session.id_len ) != 0 ) - continue; - - ret = mbedtls_ssl_session_copy( session, &entry->session ); - if( ret != 0 ) - { - ret = 1; - goto exit; - } - -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - /* - * Restore peer certificate (without rest of the original chain) - */ - if( entry->peer_cert.p != NULL ) - { - /* `session->peer_cert` is NULL after the call to - * mbedtls_ssl_session_copy(), because cache entries - * have the `peer_cert` field set to NULL. */ - - if( ( session->peer_cert = mbedtls_calloc( 1, - sizeof(mbedtls_x509_crt) ) ) == NULL ) - { - ret = 1; - goto exit; - } - - mbedtls_x509_crt_init( session->peer_cert ); - if( mbedtls_x509_crt_parse( session->peer_cert, entry->peer_cert.p, - entry->peer_cert.len ) != 0 ) - { - mbedtls_free( session->peer_cert ); - session->peer_cert = NULL; - ret = 1; - goto exit; - } - } -#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - ret = 0; - goto exit; - } - -exit: -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &cache->mutex ) != 0 ) - ret = 1; -#endif - - return( ret ); -} - -int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session ) -{ - int ret = 1; -#if defined(MBEDTLS_HAVE_TIME) - mbedtls_time_t t = mbedtls_time( NULL ), oldest = 0; - mbedtls_ssl_cache_entry *old = NULL; -#endif - mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data; - mbedtls_ssl_cache_entry *cur, *prv; - int count = 0; - -#if defined(MBEDTLS_THREADING_C) - if( ( ret = mbedtls_mutex_lock( &cache->mutex ) ) != 0 ) - return( ret ); -#endif - - cur = cache->chain; - prv = NULL; - - while( cur != NULL ) - { - count++; - -#if defined(MBEDTLS_HAVE_TIME) - if( cache->timeout != 0 && - (int) ( t - cur->timestamp ) > cache->timeout ) - { - cur->timestamp = t; - break; /* expired, reuse this slot, update timestamp */ - } -#endif - - if( memcmp( session->id, cur->session.id, cur->session.id_len ) == 0 ) - break; /* client reconnected, keep timestamp for session id */ - -#if defined(MBEDTLS_HAVE_TIME) - if( oldest == 0 || cur->timestamp < oldest ) - { - oldest = cur->timestamp; - old = cur; - } -#endif - - prv = cur; - cur = cur->next; - } - - if( cur == NULL ) - { -#if defined(MBEDTLS_HAVE_TIME) - /* - * Reuse oldest entry if max_entries reached - */ - if( count >= cache->max_entries ) - { - if( old == NULL ) - { - ret = 1; - goto exit; - } - - cur = old; - } -#else /* MBEDTLS_HAVE_TIME */ - /* - * Reuse first entry in chain if max_entries reached, - * but move to last place - */ - if( count >= cache->max_entries ) - { - if( cache->chain == NULL ) - { - ret = 1; - goto exit; - } - - cur = cache->chain; - cache->chain = cur->next; - cur->next = NULL; - prv->next = cur; - } -#endif /* MBEDTLS_HAVE_TIME */ - else - { - /* - * max_entries not reached, create new entry - */ - cur = mbedtls_calloc( 1, sizeof(mbedtls_ssl_cache_entry) ); - if( cur == NULL ) - { - ret = 1; - goto exit; - } - - if( prv == NULL ) - cache->chain = cur; - else - prv->next = cur; - } - -#if defined(MBEDTLS_HAVE_TIME) - cur->timestamp = t; -#endif - } - -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - /* - * If we're reusing an entry, free its certificate first - */ - if( cur->peer_cert.p != NULL ) - { - mbedtls_free( cur->peer_cert.p ); - memset( &cur->peer_cert, 0, sizeof(mbedtls_x509_buf) ); - } -#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - /* Copy the entire session; this temporarily makes a copy of the - * X.509 CRT structure even though we only want to store the raw CRT. - * This inefficiency will go away as soon as we implement on-demand - * parsing of CRTs, in which case there's no need for the `peer_cert` - * field anymore in the first place, and we're done after this call. */ - ret = mbedtls_ssl_session_copy( &cur->session, session ); - if( ret != 0 ) - { - ret = 1; - goto exit; - } - -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - /* If present, free the X.509 structure and only store the raw CRT data. */ - if( cur->session.peer_cert != NULL ) - { - cur->peer_cert.p = - mbedtls_calloc( 1, cur->session.peer_cert->raw.len ); - if( cur->peer_cert.p == NULL ) - { - ret = 1; - goto exit; - } - - memcpy( cur->peer_cert.p, - cur->session.peer_cert->raw.p, - cur->session.peer_cert->raw.len ); - cur->peer_cert.len = session->peer_cert->raw.len; - - mbedtls_x509_crt_free( cur->session.peer_cert ); - mbedtls_free( cur->session.peer_cert ); - cur->session.peer_cert = NULL; - } -#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - ret = 0; - -exit: -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &cache->mutex ) != 0 ) - ret = 1; -#endif - - return( ret ); -} - -#if defined(MBEDTLS_HAVE_TIME) -void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout ) -{ - if( timeout < 0 ) timeout = 0; - - cache->timeout = timeout; -} -#endif /* MBEDTLS_HAVE_TIME */ - -void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max ) -{ - if( max < 0 ) max = 0; - - cache->max_entries = max; -} - -void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache ) -{ - mbedtls_ssl_cache_entry *cur, *prv; - - cur = cache->chain; - - while( cur != NULL ) - { - prv = cur; - cur = cur->next; - - mbedtls_ssl_session_free( &prv->session ); - -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_free( prv->peer_cert.p ); -#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - mbedtls_free( prv ); - } - -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_free( &cache->mutex ); -#endif - cache->chain = NULL; -} - -#endif /* MBEDTLS_SSL_CACHE_C */ diff --git a/library/ssl_ciphersuites.c b/library/ssl_ciphersuites.c deleted file mode 100644 index 518f7dde0..000000000 --- a/library/ssl_ciphersuites.c +++ /dev/null @@ -1,2373 +0,0 @@ -/** - * \file ssl_ciphersuites.c - * - * \brief SSL ciphersuites for mbed TLS - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_SSL_TLS_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#endif - -#include "mbedtls/ssl_ciphersuites.h" -#include "mbedtls/ssl.h" - -#include - -/* - * Ordered from most preferred to least preferred in terms of security. - * - * Current rule (except RC4 and 3DES, weak and null which come last): - * 1. By key exchange: - * Forward-secure non-PSK > forward-secure PSK > ECJPAKE > other non-PSK > other PSK - * 2. By key length and cipher: - * ChaCha > AES-256 > Camellia-256 > ARIA-256 > AES-128 > Camellia-128 > ARIA-128 - * 3. By cipher mode when relevant GCM > CCM > CBC > CCM_8 - * 4. By hash function used when relevant - * 5. By key exchange/auth again: EC > non-EC - */ -static const int ciphersuite_preference[] = -{ -#if defined(MBEDTLS_SSL_CIPHERSUITES) - MBEDTLS_SSL_CIPHERSUITES, -#else - /* Chacha-Poly ephemeral suites */ - MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256, - - /* All AES-256 ephemeral suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM, - MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8, - MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8, - - /* All CAMELLIA-256 ephemeral suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, - MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384, - MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, - - /* All ARIA-256 ephemeral suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384, - MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384, - MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384, - - /* All AES-128 ephemeral suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM, - MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, - MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8, - - /* All CAMELLIA-128 ephemeral suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, - - /* All ARIA-128 ephemeral suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256, - MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256, - MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256, - - /* The PSK ephemeral suites */ - MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM, - MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, - MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, - MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8, - MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384, - MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384, - - MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM, - MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8, - MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256, - - /* The ECJPAKE suite */ - MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8, - - /* All AES-256 suites */ - MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_RSA_WITH_AES_256_CCM, - MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256, - MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8, - - /* All CAMELLIA-256 suites */ - MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256, - MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA, - MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384, - MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, - - /* All ARIA-256 suites */ - MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384, - MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384, - MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384, - - /* All AES-128 suites */ - MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_RSA_WITH_AES_128_CCM, - MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8, - - /* All CAMELLIA-128 suites */ - MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, - MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, - - /* All ARIA-128 suites */ - MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256, - MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256, - MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256, - - /* The RSA PSK suites */ - MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256, - MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384, - MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384, - - MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256, - - /* The PSK suites */ - MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256, - MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384, - MBEDTLS_TLS_PSK_WITH_AES_256_CCM, - MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384, - MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA, - MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384, - MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384, - MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, - MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384, - MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384, - - MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_PSK_WITH_AES_128_CCM, - MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256, - MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA, - MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256, - MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256, - MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8, - MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256, - MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256, - - /* 3DES suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, - MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA, - - /* RC4 suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, - MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA, - MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA, - MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA, - MBEDTLS_TLS_RSA_WITH_RC4_128_SHA, - MBEDTLS_TLS_RSA_WITH_RC4_128_MD5, - MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA, - MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA, - MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA, - MBEDTLS_TLS_PSK_WITH_RC4_128_SHA, - - /* Weak suites */ - MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA, - MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA, - - /* NULL suites */ - MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA, - MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA, - MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384, - MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256, - MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA, - MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384, - MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256, - MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA, - - MBEDTLS_TLS_RSA_WITH_NULL_SHA256, - MBEDTLS_TLS_RSA_WITH_NULL_SHA, - MBEDTLS_TLS_RSA_WITH_NULL_MD5, - MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA, - MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA, - MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384, - MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256, - MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA, - MBEDTLS_TLS_PSK_WITH_NULL_SHA384, - MBEDTLS_TLS_PSK_WITH_NULL_SHA256, - MBEDTLS_TLS_PSK_WITH_NULL_SHA, - -#endif /* MBEDTLS_SSL_CIPHERSUITES */ - 0 -}; - -static const mbedtls_ssl_ciphersuite_t ciphersuite_definitions[] = -{ -#if defined(MBEDTLS_CHACHAPOLY_C) && \ - defined(MBEDTLS_SHA256_C) && \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) - { MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, - "TLS-ECDHE-RSA-WITH-CHACHA20-POLY1305-SHA256", - MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256, - MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, - "TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256", - MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256, - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) - { MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256, - "TLS-DHE-RSA-WITH-CHACHA20-POLY1305-SHA256", - MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256, - MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - { MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256, - "TLS-PSK-WITH-CHACHA20-POLY1305-SHA256", - MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256, - MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - { MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256, - "TLS-ECDHE-PSK-WITH-CHACHA20-POLY1305-SHA256", - MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256, - MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - { MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256, - "TLS-DHE-PSK-WITH-CHACHA20-POLY1305-SHA256", - MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256, - MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - { MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256, - "TLS-RSA-PSK-WITH-CHACHA20-POLY1305-SHA256", - MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256, - MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#endif /* MBEDTLS_CHACHAPOLY_C && - MBEDTLS_SHA256_C && - MBEDTLS_SSL_PROTO_TLS1_2 */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_SHA1_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_SHA1_C */ -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA512_C */ -#if defined(MBEDTLS_CCM_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM-8", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, -#endif /* MBEDTLS_CCM_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, "TLS-ECDHE-ECDSA-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ - -#if defined(MBEDTLS_CIPHER_NULL_CIPHER) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA, "TLS-ECDHE-ECDSA-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_SHA1_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_SHA1_C */ -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-RSA-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA, "TLS-ECDHE-RSA-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ - -#if defined(MBEDTLS_CIPHER_NULL_CIPHER) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA, "TLS-ECDHE-RSA-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-DHE-RSA-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */ - -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-DHE-RSA-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ - -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA256", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_CCM_C) - { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM, "TLS-DHE-RSA-WITH-AES-256-CCM", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8, "TLS-DHE-RSA-WITH-AES-256-CCM-8", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, - { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM, "TLS-DHE-RSA-WITH-AES-128-CCM", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8, "TLS-DHE-RSA-WITH-AES-128-CCM-8", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, -#endif /* MBEDTLS_CCM_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-RSA-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-RSA-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384, "TLS-RSA-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */ - -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256, "TLS-RSA-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ - -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256, "TLS-RSA-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256, "TLS-RSA-WITH-AES-256-CBC-SHA256", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA1_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA, "TLS-RSA-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA, "TLS-RSA-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_SHA1_C */ -#if defined(MBEDTLS_CCM_C) - { MBEDTLS_TLS_RSA_WITH_AES_256_CCM, "TLS-RSA-WITH-AES-256-CCM", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8, "TLS-RSA-WITH-AES-256-CCM-8", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, - { MBEDTLS_TLS_RSA_WITH_AES_128_CCM, "TLS-RSA-WITH-AES-128-CCM", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8, "TLS-RSA-WITH-AES-128-CCM-8", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, -#endif /* MBEDTLS_CCM_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_MD5_C) - { MBEDTLS_TLS_RSA_WITH_RC4_128_MD5, "TLS-RSA-WITH-RC4-128-MD5", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_WITH_RC4_128_SHA, "TLS-RSA-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif -#endif /* MBEDTLS_ARC4_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_SHA1_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_SHA1_C */ -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-RSA-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA, "TLS-ECDH-RSA-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ - -#if defined(MBEDTLS_CIPHER_NULL_CIPHER) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA, "TLS-ECDH-RSA-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ -#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_SHA1_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_SHA1_C */ -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_GCM_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-ECDSA-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA, "TLS-ECDH-ECDSA-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ - -#if defined(MBEDTLS_CIPHER_NULL_CIPHER) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA, "TLS-ECDH-ECDSA-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ -#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256, "TLS-PSK-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384, "TLS-PSK-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ - -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256, "TLS-PSK-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384, "TLS-PSK-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA, "TLS-PSK-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA, "TLS-PSK-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_CCM_C) - { MBEDTLS_TLS_PSK_WITH_AES_256_CCM, "TLS-PSK-WITH-AES-256-CCM", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, "TLS-PSK-WITH-AES-256-CCM-8", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, - { MBEDTLS_TLS_PSK_WITH_AES_128_CCM, "TLS-PSK-WITH-AES-128-CCM", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8, "TLS-PSK-WITH-AES-128-CCM-8", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, -#endif /* MBEDTLS_CCM_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-PSK-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-PSK-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-PSK-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-PSK-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-PSK-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_PSK_WITH_RC4_128_SHA, "TLS-PSK-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, "TLS-DHE-PSK-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, "TLS-DHE-PSK-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ - -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#if defined(MBEDTLS_CCM_C) - { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM, "TLS-DHE-PSK-WITH-AES-256-CCM", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8, "TLS-DHE-PSK-WITH-AES-256-CCM-8", - MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, - { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM, "TLS-DHE-PSK-WITH-AES-128-CCM", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8, "TLS-DHE-PSK-WITH-AES-128-CCM-8", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, -#endif /* MBEDTLS_CCM_C */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-PSK-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA, "TLS-DHE-PSK-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) -#if defined(MBEDTLS_AES_C) - -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-PSK-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA, "TLS-ECDHE-PSK-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, "TLS-RSA-PSK-WITH-AES-128-GCM-SHA256", - MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, "TLS-RSA-PSK-WITH-AES-256-GCM-SHA384", - MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ - -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA256", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA384", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA", - MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, - - { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA", - MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_AES_C */ - -#if defined(MBEDTLS_CAMELLIA_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-CBC-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-CBC-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - -#if defined(MBEDTLS_GCM_C) -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-GCM-SHA256", - MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-GCM-SHA384", - MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_GCM_C */ -#endif /* MBEDTLS_CAMELLIA_C */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-PSK-WITH-3DES-EDE-CBC-SHA", - MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ - -#if defined(MBEDTLS_ARC4_C) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA, "TLS-RSA-PSK-WITH-RC4-128-SHA", - MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_NODTLS }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_ARC4_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -#if defined(MBEDTLS_AES_C) -#if defined(MBEDTLS_CCM_C) - { MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8, "TLS-ECJPAKE-WITH-AES-128-CCM-8", - MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECJPAKE, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_SHORT_TAG }, -#endif /* MBEDTLS_CCM_C */ -#endif /* MBEDTLS_AES_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES) -#if defined(MBEDTLS_CIPHER_NULL_CIPHER) -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) -#if defined(MBEDTLS_MD5_C) - { MBEDTLS_TLS_RSA_WITH_NULL_MD5, "TLS-RSA-WITH-NULL-MD5", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif - -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_WITH_NULL_SHA, "TLS-RSA-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif - -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_WITH_NULL_SHA256, "TLS-RSA-WITH-NULL-SHA256", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_PSK_WITH_NULL_SHA, "TLS-PSK-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ - -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_PSK_WITH_NULL_SHA256, "TLS-PSK-WITH-NULL-SHA256", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_PSK_WITH_NULL_SHA384, "TLS-PSK-WITH-NULL-SHA384", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif -#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA, "TLS-DHE-PSK-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ - -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256, "TLS-DHE-PSK-WITH-NULL-SHA256", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384, "TLS-DHE-PSK-WITH-NULL-SHA384", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA, "TLS-ECDHE-PSK-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ - -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256, "TLS-ECDHE-PSK-WITH-NULL-SHA256", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384, "TLS-ECDHE-PSK-WITH-NULL-SHA384", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA, "TLS-RSA-PSK-WITH-NULL-SHA", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ - -#if defined(MBEDTLS_SHA256_C) - { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256, "TLS-RSA-PSK-WITH-NULL-SHA256", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif - -#if defined(MBEDTLS_SHA512_C) - { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384, "TLS-RSA-PSK-WITH-NULL-SHA384", - MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ -#endif /* MBEDTLS_CIPHER_NULL_CIPHER */ - -#if defined(MBEDTLS_DES_C) -#if defined(MBEDTLS_CIPHER_MODE_CBC) -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA, "TLS-DHE-RSA-WITH-DES-CBC-SHA", - MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) -#if defined(MBEDTLS_SHA1_C) - { MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA, "TLS-RSA-WITH-DES-CBC-SHA", - MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_CIPHERSUITE_WEAK }, -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ -#endif /* MBEDTLS_CIPHER_MODE_CBC */ -#endif /* MBEDTLS_DES_C */ -#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */ - -#if defined(MBEDTLS_ARIA_C) - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384, - "TLS-RSA-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384, - "TLS-RSA-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256, - "TLS-RSA-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256, - "TLS-RSA-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384, - "TLS-RSA-PSK-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384, - "TLS-RSA-PSK-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256, - "TLS-RSA-PSK-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256, - "TLS-RSA-PSK-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384, - "TLS-PSK-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384,MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384, - "TLS-PSK-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256, - "TLS-PSK-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256, - "TLS-PSK-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384, - "TLS-ECDH-RSA-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384, - "TLS-ECDH-RSA-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256, - "TLS-ECDH-RSA-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256, - "TLS-ECDH-RSA-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384, - "TLS-ECDHE-RSA-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384, - "TLS-ECDHE-RSA-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256, - "TLS-ECDHE-RSA-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256, - "TLS-ECDHE-RSA-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384, - "TLS-ECDHE-PSK-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256, - "TLS-ECDHE-PSK-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384, - "TLS-ECDHE-ECDSA-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384, - "TLS-ECDHE-ECDSA-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256, - "TLS-ECDHE-ECDSA-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256, - "TLS-ECDHE-ECDSA-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384, - "TLS-ECDH-ECDSA-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384, - "TLS-ECDH-ECDSA-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256, - "TLS-ECDH-ECDSA-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256, - "TLS-ECDH-ECDSA-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384, - "TLS-DHE-RSA-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384, - "TLS-DHE-RSA-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256, - "TLS-DHE-RSA-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256, - "TLS-DHE-RSA-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384, - "TLS-DHE-PSK-WITH-ARIA-256-GCM-SHA384", - MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C)) - { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384, - "TLS-DHE-PSK-WITH-ARIA-256-CBC-SHA384", - MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256, - "TLS-DHE-PSK-WITH-ARIA-128-GCM-SHA256", - MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif -#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C)) - { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256, - "TLS-DHE-PSK-WITH-ARIA-128-CBC-SHA256", - MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3, - 0 }, -#endif - -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ - -#endif /* MBEDTLS_ARIA_C */ - - - { 0, "", - MBEDTLS_CIPHER_NONE, MBEDTLS_MD_NONE, MBEDTLS_KEY_EXCHANGE_NONE, - 0, 0, 0, 0, 0 } -}; - -#if defined(MBEDTLS_SSL_CIPHERSUITES) -const int *mbedtls_ssl_list_ciphersuites( void ) -{ - return( ciphersuite_preference ); -} -#else -#define MAX_CIPHERSUITES sizeof( ciphersuite_definitions ) / \ - sizeof( ciphersuite_definitions[0] ) -static int supported_ciphersuites[MAX_CIPHERSUITES]; -static int supported_init = 0; - -static int ciphersuite_is_removed( const mbedtls_ssl_ciphersuite_t *cs_info ) -{ - (void)cs_info; - -#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES) - if( cs_info->cipher == MBEDTLS_CIPHER_ARC4_128 ) - return( 1 ); -#endif /* MBEDTLS_REMOVE_ARC4_CIPHERSUITES */ - -#if defined(MBEDTLS_REMOVE_3DES_CIPHERSUITES) - if( cs_info->cipher == MBEDTLS_CIPHER_DES_EDE3_ECB || - cs_info->cipher == MBEDTLS_CIPHER_DES_EDE3_CBC ) - { - return( 1 ); - } -#endif /* MBEDTLS_REMOVE_3DES_CIPHERSUITES */ - - return( 0 ); -} - -const int *mbedtls_ssl_list_ciphersuites( void ) -{ - /* - * On initial call filter out all ciphersuites not supported by current - * build based on presence in the ciphersuite_definitions. - */ - if( supported_init == 0 ) - { - const int *p; - int *q; - - for( p = ciphersuite_preference, q = supported_ciphersuites; - *p != 0 && q < supported_ciphersuites + MAX_CIPHERSUITES - 1; - p++ ) - { - const mbedtls_ssl_ciphersuite_t *cs_info; - if( ( cs_info = mbedtls_ssl_ciphersuite_from_id( *p ) ) != NULL && - !ciphersuite_is_removed( cs_info ) ) - { - *(q++) = *p; - } - } - *q = 0; - - supported_init = 1; - } - - return( supported_ciphersuites ); -} -#endif /* MBEDTLS_SSL_CIPHERSUITES */ - -const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string( - const char *ciphersuite_name ) -{ - const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions; - - if( NULL == ciphersuite_name ) - return( NULL ); - - while( cur->id != 0 ) - { - if( 0 == strcmp( cur->name, ciphersuite_name ) ) - return( cur ); - - cur++; - } - - return( NULL ); -} - -const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id( int ciphersuite ) -{ - const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions; - - while( cur->id != 0 ) - { - if( cur->id == ciphersuite ) - return( cur ); - - cur++; - } - - return( NULL ); -} - -const char *mbedtls_ssl_get_ciphersuite_name( const int ciphersuite_id ) -{ - const mbedtls_ssl_ciphersuite_t *cur; - - cur = mbedtls_ssl_ciphersuite_from_id( ciphersuite_id ); - - if( cur == NULL ) - return( "unknown" ); - - return( cur->name ); -} - -int mbedtls_ssl_get_ciphersuite_id( const char *ciphersuite_name ) -{ - const mbedtls_ssl_ciphersuite_t *cur; - - cur = mbedtls_ssl_ciphersuite_from_string( ciphersuite_name ); - - if( cur == NULL ) - return( 0 ); - - return( cur->id ); -} - -#if defined(MBEDTLS_PK_C) -mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_RSA: - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_RSA_PSK: - return( MBEDTLS_PK_RSA ); - - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - return( MBEDTLS_PK_ECDSA ); - - case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: - return( MBEDTLS_PK_ECKEY ); - - default: - return( MBEDTLS_PK_NONE ); - } -} - -mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_alg( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_RSA: - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - return( MBEDTLS_PK_RSA ); - - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - return( MBEDTLS_PK_ECDSA ); - - default: - return( MBEDTLS_PK_NONE ); - } -} - -#endif /* MBEDTLS_PK_C */ - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -int mbedtls_ssl_ciphersuite_uses_ec( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: - case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: - case MBEDTLS_KEY_EXCHANGE_ECJPAKE: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED*/ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -int mbedtls_ssl_ciphersuite_uses_psk( const mbedtls_ssl_ciphersuite_t *info ) -{ - switch( info->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_PSK: - case MBEDTLS_KEY_EXCHANGE_RSA_PSK: - case MBEDTLS_KEY_EXCHANGE_DHE_PSK: - case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: - return( 1 ); - - default: - return( 0 ); - } -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#endif /* MBEDTLS_SSL_TLS_C */ diff --git a/library/ssl_cli.c b/library/ssl_cli.c deleted file mode 100644 index 4e5b3a602..000000000 --- a/library/ssl_cli.c +++ /dev/null @@ -1,3944 +0,0 @@ -/* - * SSLv3/TLSv1 client-side functions - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_SSL_CLI_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include "mbedtls/debug.h" -#include "mbedtls/ssl.h" -#include "mbedtls/ssl_internal.h" - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "mbedtls/psa_util.h" -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -#include - -#include - -#if defined(MBEDTLS_HAVE_TIME) -#include "mbedtls/platform_time.h" -#endif - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -#include "mbedtls/platform_util.h" -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -static int ssl_conf_has_static_psk( mbedtls_ssl_config const *conf ) -{ - if( conf->psk_identity == NULL || - conf->psk_identity_len == 0 ) - { - return( 0 ); - } - - if( conf->psk != NULL && conf->psk_len != 0 ) - return( 1 ); - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - if( conf->psk_opaque != 0 ) - return( 1 ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - - return( 0 ); -} - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -static int ssl_conf_has_static_raw_psk( mbedtls_ssl_config const *conf ) -{ - if( conf->psk_identity == NULL || - conf->psk_identity_len == 0 ) - { - return( 0 ); - } - - if( conf->psk != NULL && conf->psk_len != 0 ) - return( 1 ); - - return( 0 ); -} -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) -static void ssl_write_hostname_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - size_t hostname_len; - - *olen = 0; - - if( ssl->hostname == NULL ) - return; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding server name extension: %s", - ssl->hostname ) ); - - hostname_len = strlen( ssl->hostname ); - - if( end < p || (size_t)( end - p ) < hostname_len + 9 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - /* - * Sect. 3, RFC 6066 (TLS Extensions Definitions) - * - * In order to provide any of the server names, clients MAY include an - * extension of type "server_name" in the (extended) client hello. The - * "extension_data" field of this extension SHALL contain - * "ServerNameList" where: - * - * struct { - * NameType name_type; - * select (name_type) { - * case host_name: HostName; - * } name; - * } ServerName; - * - * enum { - * host_name(0), (255) - * } NameType; - * - * opaque HostName<1..2^16-1>; - * - * struct { - * ServerName server_name_list<1..2^16-1> - * } ServerNameList; - * - */ - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME ) & 0xFF ); - - *p++ = (unsigned char)( ( (hostname_len + 5) >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( (hostname_len + 5) ) & 0xFF ); - - *p++ = (unsigned char)( ( (hostname_len + 3) >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( (hostname_len + 3) ) & 0xFF ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME ) & 0xFF ); - *p++ = (unsigned char)( ( hostname_len >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( hostname_len ) & 0xFF ); - - memcpy( p, ssl->hostname, hostname_len ); - - *olen = hostname_len + 9; -} -#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ - -#if defined(MBEDTLS_SSL_RENEGOTIATION) -static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - - *olen = 0; - - /* We're always including an TLS_EMPTY_RENEGOTIATION_INFO_SCSV in the - * initial ClientHello, in which case also adding the renegotiation - * info extension is NOT RECOMMENDED as per RFC 5746 Section 3.4. */ - if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - return; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding renegotiation extension" ) ); - - if( end < p || (size_t)( end - p ) < 5 + ssl->verify_data_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - /* - * Secure renegotiation - */ - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO ) & 0xFF ); - - *p++ = 0x00; - *p++ = ( ssl->verify_data_len + 1 ) & 0xFF; - *p++ = ssl->verify_data_len & 0xFF; - - memcpy( p, ssl->own_verify_data, ssl->verify_data_len ); - - *olen = 5 + ssl->verify_data_len; -} -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - -/* - * Only if we handle at least one key exchange that needs signatures. - */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -static void ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - size_t sig_alg_len = 0; - const int *md; -#if defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) - unsigned char *sig_alg_list = buf + 6; -#endif - - *olen = 0; - - if( ssl->conf->max_minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) - return; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding signature_algorithms extension" ) ); - - for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ ) - { -#if defined(MBEDTLS_ECDSA_C) - sig_alg_len += 2; -#endif -#if defined(MBEDTLS_RSA_C) - sig_alg_len += 2; -#endif - } - - if( end < p || (size_t)( end - p ) < sig_alg_len + 6 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - /* - * Prepare signature_algorithms extension (TLS 1.2) - */ - sig_alg_len = 0; - - for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ ) - { -#if defined(MBEDTLS_ECDSA_C) - sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md ); - sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_ECDSA; -#endif -#if defined(MBEDTLS_RSA_C) - sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md ); - sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_RSA; -#endif - } - - /* - * enum { - * none(0), md5(1), sha1(2), sha224(3), sha256(4), sha384(5), - * sha512(6), (255) - * } HashAlgorithm; - * - * enum { anonymous(0), rsa(1), dsa(2), ecdsa(3), (255) } - * SignatureAlgorithm; - * - * struct { - * HashAlgorithm hash; - * SignatureAlgorithm signature; - * } SignatureAndHashAlgorithm; - * - * SignatureAndHashAlgorithm - * supported_signature_algorithms<2..2^16-2>; - */ - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG ) & 0xFF ); - - *p++ = (unsigned char)( ( ( sig_alg_len + 2 ) >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( ( sig_alg_len + 2 ) ) & 0xFF ); - - *p++ = (unsigned char)( ( sig_alg_len >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( sig_alg_len ) & 0xFF ); - - *olen = 6 + sig_alg_len; -} -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static void ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - unsigned char *elliptic_curve_list = p + 6; - size_t elliptic_curve_len = 0; - const mbedtls_ecp_curve_info *info; -#if defined(MBEDTLS_ECP_C) - const mbedtls_ecp_group_id *grp_id; -#else - ((void) ssl); -#endif - - *olen = 0; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_elliptic_curves extension" ) ); - -#if defined(MBEDTLS_ECP_C) - for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ ) -#else - for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ ) -#endif - { -#if defined(MBEDTLS_ECP_C) - info = mbedtls_ecp_curve_info_from_grp_id( *grp_id ); -#endif - if( info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid curve in ssl configuration" ) ); - return; - } - - elliptic_curve_len += 2; - } - - if( end < p || (size_t)( end - p ) < 6 + elliptic_curve_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - elliptic_curve_len = 0; - -#if defined(MBEDTLS_ECP_C) - for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ ) -#else - for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ ) -#endif - { -#if defined(MBEDTLS_ECP_C) - info = mbedtls_ecp_curve_info_from_grp_id( *grp_id ); -#endif - elliptic_curve_list[elliptic_curve_len++] = info->tls_id >> 8; - elliptic_curve_list[elliptic_curve_len++] = info->tls_id & 0xFF; - } - - if( elliptic_curve_len == 0 ) - return; - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES ) & 0xFF ); - - *p++ = (unsigned char)( ( ( elliptic_curve_len + 2 ) >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( ( elliptic_curve_len + 2 ) ) & 0xFF ); - - *p++ = (unsigned char)( ( ( elliptic_curve_len ) >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( ( elliptic_curve_len ) ) & 0xFF ); - - *olen = 6 + elliptic_curve_len; -} - -static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - - *olen = 0; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_point_formats extension" ) ); - - if( end < p || (size_t)( end - p ) < 6 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS ) & 0xFF ); - - *p++ = 0x00; - *p++ = 2; - - *p++ = 1; - *p++ = MBEDTLS_ECP_PF_UNCOMPRESSED; - - *olen = 6; -} -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || - MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - int ret; - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - size_t kkpp_len; - - *olen = 0; - - /* Skip costly extension if we can't use EC J-PAKE anyway */ - if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 ) - return; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding ecjpake_kkpp extension" ) ); - - if( end - p < 4 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP ) & 0xFF ); - - /* - * We may need to send ClientHello multiple times for Hello verification. - * We don't want to compute fresh values every time (both for performance - * and consistency reasons), so cache the extension content. - */ - if( ssl->handshake->ecjpake_cache == NULL || - ssl->handshake->ecjpake_cache_len == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "generating new ecjpake parameters" ) ); - - ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx, - p + 2, end - p - 2, &kkpp_len, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret ); - return; - } - - ssl->handshake->ecjpake_cache = mbedtls_calloc( 1, kkpp_len ); - if( ssl->handshake->ecjpake_cache == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "allocation failed" ) ); - return; - } - - memcpy( ssl->handshake->ecjpake_cache, p + 2, kkpp_len ); - ssl->handshake->ecjpake_cache_len = kkpp_len; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "re-using cached ecjpake parameters" ) ); - - kkpp_len = ssl->handshake->ecjpake_cache_len; - - if( (size_t)( end - p - 2 ) < kkpp_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - memcpy( p + 2, ssl->handshake->ecjpake_cache, kkpp_len ); - } - - *p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( kkpp_len ) & 0xFF ); - - *olen = kkpp_len + 4; -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - - *olen = 0; - - if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ) { - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding max_fragment_length extension" ) ); - - if( end < p || (size_t)( end - p ) < 5 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH ) & 0xFF ); - - *p++ = 0x00; - *p++ = 1; - - *p++ = ssl->conf->mfl_code; - - *olen = 5; -} -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) -static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - - *olen = 0; - - if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED ) - { - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding truncated_hmac extension" ) ); - - if( end < p || (size_t)( end - p ) < 4 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF ); - - *p++ = 0x00; - *p++ = 0x00; - - *olen = 4; -} -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) -static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - - *olen = 0; - - if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED || - ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding encrypt_then_mac " - "extension" ) ); - - if( end < p || (size_t)( end - p ) < 4 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC ) & 0xFF ); - - *p++ = 0x00; - *p++ = 0x00; - - *olen = 4; -} -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) -static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - - *olen = 0; - - if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED || - ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding extended_master_secret " - "extension" ) ); - - if( end < p || (size_t)( end - p ) < 4 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET ) & 0xFF ); - - *p++ = 0x00; - *p++ = 0x00; - - *olen = 4; -} -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - size_t tlen = ssl->session_negotiate->ticket_len; - - *olen = 0; - - if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED ) - { - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding session ticket extension" ) ); - - if( end < p || (size_t)( end - p ) < 4 + tlen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET ) & 0xFF ); - - *p++ = (unsigned char)( ( tlen >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( tlen ) & 0xFF ); - - *olen = 4; - - if( ssl->session_negotiate->ticket == NULL || tlen == 0 ) - { - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "sending session ticket of length %d", tlen ) ); - - memcpy( p, ssl->session_negotiate->ticket, tlen ); - - *olen += tlen; -} -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -#if defined(MBEDTLS_SSL_ALPN) -static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, size_t *olen ) -{ - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - size_t alpnlen = 0; - const char **cur; - - *olen = 0; - - if( ssl->conf->alpn_list == NULL ) - { - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding alpn extension" ) ); - - for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ ) - alpnlen += (unsigned char)( strlen( *cur ) & 0xFF ) + 1; - - if( end < p || (size_t)( end - p ) < 6 + alpnlen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN ) & 0xFF ); - - /* - * opaque ProtocolName<1..2^8-1>; - * - * struct { - * ProtocolName protocol_name_list<2..2^16-1> - * } ProtocolNameList; - */ - - /* Skip writing extension and list length for now */ - p += 4; - - for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ ) - { - *p = (unsigned char)( strlen( *cur ) & 0xFF ); - memcpy( p + 1, *cur, *p ); - p += 1 + *p; - } - - *olen = p - buf; - - /* List length = olen - 2 (ext_type) - 2 (ext_len) - 2 (list_len) */ - buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF ); - buf[5] = (unsigned char)( ( ( *olen - 6 ) ) & 0xFF ); - - /* Extension length = olen - 2 (ext_type) - 2 (ext_len) */ - buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF ); - buf[3] = (unsigned char)( ( ( *olen - 4 ) ) & 0xFF ); -} -#endif /* MBEDTLS_SSL_ALPN */ - -/* - * Generate random bytes for ClientHello - */ -static int ssl_generate_random( mbedtls_ssl_context *ssl ) -{ - int ret; - unsigned char *p = ssl->handshake->randbytes; -#if defined(MBEDTLS_HAVE_TIME) - mbedtls_time_t t; -#endif - - /* - * When responding to a verify request, MUST reuse random (RFC 6347 4.2.1) - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake->verify_cookie != NULL ) - { - return( 0 ); - } -#endif - -#if defined(MBEDTLS_HAVE_TIME) - t = mbedtls_time( NULL ); - *p++ = (unsigned char)( t >> 24 ); - *p++ = (unsigned char)( t >> 16 ); - *p++ = (unsigned char)( t >> 8 ); - *p++ = (unsigned char)( t ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, current time: %lu", t ) ); -#else - if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 ) - return( ret ); - - p += 4; -#endif /* MBEDTLS_HAVE_TIME */ - - if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 ) - return( ret ); - - return( 0 ); -} - -/** - * \brief Validate cipher suite against config in SSL context. - * - * \param suite_info cipher suite to validate - * \param ssl SSL context - * \param min_minor_ver Minimal minor version to accept a cipher suite - * \param max_minor_ver Maximal minor version to accept a cipher suite - * - * \return 0 if valid, else 1 - */ -static int ssl_validate_ciphersuite( const mbedtls_ssl_ciphersuite_t * suite_info, - const mbedtls_ssl_context * ssl, - int min_minor_ver, int max_minor_ver ) -{ - (void) ssl; - if( suite_info == NULL ) - return( 1 ); - - if( suite_info->min_minor_ver > max_minor_ver || - suite_info->max_minor_ver < min_minor_ver ) - return( 1 ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( suite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) ) - return( 1 ); -#endif - -#if defined(MBEDTLS_ARC4_C) - if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED && - suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 ) - return( 1 ); -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE && - mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 ) - return( 1 ); -#endif - - /* Don't suggest PSK-based ciphersuite if no PSK is available. */ -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) && - ssl_conf_has_static_psk( ssl->conf ) == 0 ) - { - return( 1 ); - } -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - - return( 0 ); -} - -static int ssl_write_client_hello( mbedtls_ssl_context *ssl ) -{ - int ret; - size_t i, n, olen, ext_len = 0; - unsigned char *buf; - unsigned char *p, *q; - unsigned char offer_compress; - const int *ciphersuites; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info; -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - int uses_ec = 0; -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client hello" ) ); - - if( ssl->conf->f_rng == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") ); - return( MBEDTLS_ERR_SSL_NO_RNG ); - } - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) -#endif - { - ssl->major_ver = ssl->conf->min_major_ver; - ssl->minor_ver = ssl->conf->min_minor_ver; - } - - if( ssl->conf->max_major_ver == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "configured max major version is invalid, " - "consider using mbedtls_ssl_config_defaults()" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - /* - * 0 . 0 handshake type - * 1 . 3 handshake length - * 4 . 5 highest version supported - * 6 . 9 current UNIX time - * 10 . 37 random bytes - */ - buf = ssl->out_msg; - p = buf + 4; - - mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver, - ssl->conf->transport, p ); - p += 2; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, max version: [%d:%d]", - buf[4], buf[5] ) ); - - if( ( ret = ssl_generate_random( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_generate_random", ret ); - return( ret ); - } - - memcpy( p, ssl->handshake->randbytes, 32 ); - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", p, 32 ); - p += 32; - - /* - * 38 . 38 session id length - * 39 . 39+n session id - * 39+n . 39+n DTLS only: cookie length (1 byte) - * 40+n . .. DTSL only: cookie - * .. . .. ciphersuitelist length (2 bytes) - * .. . .. ciphersuitelist - * .. . .. compression methods length (1 byte) - * .. . .. compression methods - * .. . .. extensions length (2 bytes) - * .. . .. extensions - */ - n = ssl->session_negotiate->id_len; - - if( n < 16 || n > 32 || -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE || -#endif - ssl->handshake->resume == 0 ) - { - n = 0; - } - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - /* - * RFC 5077 section 3.4: "When presenting a ticket, the client MAY - * generate and include a Session ID in the TLS ClientHello." - */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) -#endif - { - if( ssl->session_negotiate->ticket != NULL && - ssl->session_negotiate->ticket_len != 0 ) - { - ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id, 32 ); - - if( ret != 0 ) - return( ret ); - - ssl->session_negotiate->id_len = n = 32; - } - } -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - - *p++ = (unsigned char) n; - - for( i = 0; i < n; i++ ) - *p++ = ssl->session_negotiate->id[i]; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, session id len.: %d", n ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 39, n ); - - /* - * DTLS cookie - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - if( ssl->handshake->verify_cookie == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "no verify cookie to send" ) ); - *p++ = 0; - } - else - { - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie", - ssl->handshake->verify_cookie, - ssl->handshake->verify_cookie_len ); - - *p++ = ssl->handshake->verify_cookie_len; - memcpy( p, ssl->handshake->verify_cookie, - ssl->handshake->verify_cookie_len ); - p += ssl->handshake->verify_cookie_len; - } - } -#endif - - /* - * Ciphersuite list - */ - ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver]; - - /* Skip writing ciphersuite length for now */ - n = 0; - q = p; - p += 2; - - for( i = 0; ciphersuites[i] != 0; i++ ) - { - ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( ciphersuites[i] ); - - if( ssl_validate_ciphersuite( ciphersuite_info, ssl, - ssl->conf->min_minor_ver, - ssl->conf->max_minor_ver ) != 0 ) - continue; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, add ciphersuite: %04x", - ciphersuites[i] ) ); - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - uses_ec |= mbedtls_ssl_ciphersuite_uses_ec( ciphersuite_info ); -#endif - - n++; - *p++ = (unsigned char)( ciphersuites[i] >> 8 ); - *p++ = (unsigned char)( ciphersuites[i] ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, got %d ciphersuites (excluding SCSVs)", n ) ); - - /* - * Add TLS_EMPTY_RENEGOTIATION_INFO_SCSV - */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) -#endif - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding EMPTY_RENEGOTIATION_INFO_SCSV" ) ); - *p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO >> 8 ); - *p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO ); - n++; - } - - /* Some versions of OpenSSL don't handle it correctly if not at end */ -#if defined(MBEDTLS_SSL_FALLBACK_SCSV) - if( ssl->conf->fallback == MBEDTLS_SSL_IS_FALLBACK ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding FALLBACK_SCSV" ) ); - *p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ); - *p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ); - n++; - } -#endif - - *q++ = (unsigned char)( n >> 7 ); - *q++ = (unsigned char)( n << 1 ); - -#if defined(MBEDTLS_ZLIB_SUPPORT) - offer_compress = 1; -#else - offer_compress = 0; -#endif - - /* - * We don't support compression with DTLS right now: if many records come - * in the same datagram, uncompressing one could overwrite the next one. - * We don't want to add complexity for handling that case unless there is - * an actual need for it. - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - offer_compress = 0; -#endif - - if( offer_compress ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 2 ) ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d %d", - MBEDTLS_SSL_COMPRESS_DEFLATE, MBEDTLS_SSL_COMPRESS_NULL ) ); - - *p++ = 2; - *p++ = MBEDTLS_SSL_COMPRESS_DEFLATE; - *p++ = MBEDTLS_SSL_COMPRESS_NULL; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 1 ) ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d", - MBEDTLS_SSL_COMPRESS_NULL ) ); - - *p++ = 1; - *p++ = MBEDTLS_SSL_COMPRESS_NULL; - } - - // First write extensions, then the total length - // -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - ssl_write_hostname_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - - /* Note that TLS_EMPTY_RENEGOTIATION_INFO_SCSV is always added - * even if MBEDTLS_SSL_RENEGOTIATION is not defined. */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - ssl_write_signature_algorithms_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if( uses_ec ) - { - ssl_write_supported_elliptic_curves_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; - - ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; - } -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_ALPN) - ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - - /* olen unused if all extensions are disabled */ - ((void) olen); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, total extension length: %d", - ext_len ) ); - - if( ext_len > 0 ) - { - *p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( ext_len ) & 0xFF ); - p += ext_len; - } - - ssl->out_msglen = p - buf; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_CLIENT_HELLO; - - ssl->state++; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_send_flight_completed( ssl ); -#endif - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret ); - return( ret ); - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client hello" ) ); - - return( 0 ); -} - -static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) - { - /* Check verify-data in constant-time. The length OTOH is no secret */ - if( len != 1 + ssl->verify_data_len * 2 || - buf[0] != ssl->verify_data_len * 2 || - mbedtls_ssl_safer_memcmp( buf + 1, - ssl->own_verify_data, ssl->verify_data_len ) != 0 || - mbedtls_ssl_safer_memcmp( buf + 1 + ssl->verify_data_len, - ssl->peer_verify_data, ssl->verify_data_len ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - } - else -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - { - if( len != 1 || buf[0] != 0x00 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; - } - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - /* - * server should use the extension only if we did, - * and if so the server's value should match ours (and len is always 1) - */ - if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE || - len != 1 || - buf[0] != ssl->conf->mfl_code ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching max fragment length extension" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - return( 0 ); -} -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) -static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED || - len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching truncated HMAC extension" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - ((void) buf); - - ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) -static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || - len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching encrypt-then-MAC extension" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - ((void) buf); - - ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) -static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || - len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching extended master secret extension" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - ((void) buf); - - ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED || - len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching session ticket extension" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - ((void) buf); - - ssl->handshake->new_session_ticket = 1; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - size_t list_size; - const unsigned char *p; - - if( len == 0 || (size_t)( buf[0] + 1 ) != len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - list_size = buf[0]; - - p = buf + 1; - while( list_size > 0 ) - { - if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED || - p[0] == MBEDTLS_ECP_PF_COMPRESSED ) - { -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) - ssl->handshake->ecdh_ctx.point_format = p[0]; -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - ssl->handshake->ecjpake_ctx.point_format = p[0]; -#endif - MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) ); - return( 0 ); - } - - list_size--; - p++; - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "no point format in common" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); -} -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || - MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - int ret; - - if( ssl->transform_negotiate->ciphersuite_info->key_exchange != - MBEDTLS_KEY_EXCHANGE_ECJPAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) ); - return( 0 ); - } - - /* If we got here, we no longer need our cached extension */ - mbedtls_free( ssl->handshake->ecjpake_cache ); - ssl->handshake->ecjpake_cache = NULL; - ssl->handshake->ecjpake_cache_len = 0; - - if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx, - buf, len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( ret ); - } - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_SSL_ALPN) -static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ - size_t list_len, name_len; - const char **p; - - /* If we didn't send it, the server shouldn't send it */ - if( ssl->conf->alpn_list == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching ALPN extension" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - /* - * opaque ProtocolName<1..2^8-1>; - * - * struct { - * ProtocolName protocol_name_list<2..2^16-1> - * } ProtocolNameList; - * - * the "ProtocolNameList" MUST contain exactly one "ProtocolName" - */ - - /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */ - if( len < 4 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - list_len = ( buf[0] << 8 ) | buf[1]; - if( list_len != len - 2 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - name_len = buf[2]; - if( name_len != list_len - 1 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - /* Check that the server chosen protocol was in our list and save it */ - for( p = ssl->conf->alpn_list; *p != NULL; p++ ) - { - if( name_len == strlen( *p ) && - memcmp( buf + 3, *p, name_len ) == 0 ) - { - ssl->alpn_chosen = *p; - return( 0 ); - } - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "ALPN extension: no matching protocol" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); -} -#endif /* MBEDTLS_SSL_ALPN */ - -/* - * Parse HelloVerifyRequest. Only called after verifying the HS type. - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) -static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl ) -{ - const unsigned char *p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); - int major_ver, minor_ver; - unsigned char cookie_len; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse hello verify request" ) ); - - /* - * struct { - * ProtocolVersion server_version; - * opaque cookie<0..2^8-1>; - * } HelloVerifyRequest; - */ - MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 ); - mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, p ); - p += 2; - - /* - * Since the RFC is not clear on this point, accept DTLS 1.0 (TLS 1.1) - * even is lower than our min version. - */ - if( major_ver < MBEDTLS_SSL_MAJOR_VERSION_3 || - minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 || - major_ver > ssl->conf->max_major_ver || - minor_ver > ssl->conf->max_minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server version" ) ); - - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); - - return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); - } - - cookie_len = *p++; - MBEDTLS_SSL_DEBUG_BUF( 3, "cookie", p, cookie_len ); - - if( ( ssl->in_msg + ssl->in_msglen ) - p < cookie_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, - ( "cookie length does not match incoming message size" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - mbedtls_free( ssl->handshake->verify_cookie ); - - ssl->handshake->verify_cookie = mbedtls_calloc( 1, cookie_len ); - if( ssl->handshake->verify_cookie == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc failed (%d bytes)", cookie_len ) ); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - - memcpy( ssl->handshake->verify_cookie, p, cookie_len ); - ssl->handshake->verify_cookie_len = cookie_len; - - /* Start over at ClientHello */ - ssl->state = MBEDTLS_SSL_CLIENT_HELLO; - mbedtls_ssl_reset_checksum( ssl ); - - mbedtls_ssl_recv_flight_completed( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse hello verify request" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) -{ - int ret, i; - size_t n; - size_t ext_len; - unsigned char *buf, *ext; - unsigned char comp; -#if defined(MBEDTLS_ZLIB_SUPPORT) - int accept_comp; -#endif -#if defined(MBEDTLS_SSL_RENEGOTIATION) - int renegotiation_info_seen = 0; -#endif - int handshake_failure = 0; - const mbedtls_ssl_ciphersuite_t *suite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello" ) ); - - buf = ssl->in_msg; - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - /* No alert on a read error. */ - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - ssl->renego_records_seen++; - - if( ssl->conf->renego_max_records >= 0 && - ssl->renego_records_seen > ssl->conf->renego_max_records ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, " - "but not honored by server" ) ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-handshake message during renego" ) ); - - ssl->keep_current_message = 1; - return( MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO ); - } -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - if( buf[0] == MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "received hello verify request" ) ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) ); - return( ssl_parse_hello_verify_request( ssl ) ); - } - else - { - /* We made it through the verification process */ - mbedtls_free( ssl->handshake->verify_cookie ); - ssl->handshake->verify_cookie = NULL; - ssl->handshake->verify_cookie_len = 0; - } - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - if( ssl->in_hslen < 38 + mbedtls_ssl_hs_hdr_len( ssl ) || - buf[0] != MBEDTLS_SSL_HS_SERVER_HELLO ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - /* - * 0 . 1 server_version - * 2 . 33 random (maybe including 4 bytes of Unix time) - * 34 . 34 session_id length = n - * 35 . 34+n session_id - * 35+n . 36+n cipher_suite - * 37+n . 37+n compression_method - * - * 38+n . 39+n extensions length (optional) - * 40+n . .. extensions - */ - buf += mbedtls_ssl_hs_hdr_len( ssl ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, version", buf + 0, 2 ); - mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver, - ssl->conf->transport, buf + 0 ); - - if( ssl->major_ver < ssl->conf->min_major_ver || - ssl->minor_ver < ssl->conf->min_minor_ver || - ssl->major_ver > ssl->conf->max_major_ver || - ssl->minor_ver > ssl->conf->max_minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "server version out of bounds - " - " min: [%d:%d], server: [%d:%d], max: [%d:%d]", - ssl->conf->min_major_ver, ssl->conf->min_minor_ver, - ssl->major_ver, ssl->minor_ver, - ssl->conf->max_major_ver, ssl->conf->max_minor_ver ) ); - - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); - - return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", - ( (uint32_t) buf[2] << 24 ) | - ( (uint32_t) buf[3] << 16 ) | - ( (uint32_t) buf[4] << 8 ) | - ( (uint32_t) buf[5] ) ) ); - - memcpy( ssl->handshake->randbytes + 32, buf + 2, 32 ); - - n = buf[34]; - - MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 2, 32 ); - - if( n > 32 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - if( ssl->in_hslen > mbedtls_ssl_hs_hdr_len( ssl ) + 39 + n ) - { - ext_len = ( ( buf[38 + n] << 8 ) - | ( buf[39 + n] ) ); - - if( ( ext_len > 0 && ext_len < 4 ) || - ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 40 + n + ext_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - } - else if( ssl->in_hslen == mbedtls_ssl_hs_hdr_len( ssl ) + 38 + n ) - { - ext_len = 0; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - /* ciphersuite (used later) */ - i = ( buf[35 + n] << 8 ) | buf[36 + n]; - - /* - * Read and check compression - */ - comp = buf[37 + n]; - -#if defined(MBEDTLS_ZLIB_SUPPORT) - /* See comments in ssl_write_client_hello() */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - accept_comp = 0; - else -#endif - accept_comp = 1; - - if( comp != MBEDTLS_SSL_COMPRESS_NULL && - ( comp != MBEDTLS_SSL_COMPRESS_DEFLATE || accept_comp == 0 ) ) -#else /* MBEDTLS_ZLIB_SUPPORT */ - if( comp != MBEDTLS_SSL_COMPRESS_NULL ) -#endif/* MBEDTLS_ZLIB_SUPPORT */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "server hello, bad compression: %d", comp ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); - } - - /* - * Initialize update checksum functions - */ - ssl->transform_negotiate->ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( i ); - - if( ssl->transform_negotiate->ciphersuite_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "ciphersuite info for %04x not found", i ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - mbedtls_ssl_optimize_checksum( ssl, ssl->transform_negotiate->ciphersuite_info ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, session id", buf + 35, n ); - - /* - * Check if the session can be resumed - */ - if( ssl->handshake->resume == 0 || n == 0 || -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE || -#endif - ssl->session_negotiate->ciphersuite != i || - ssl->session_negotiate->compression != comp || - ssl->session_negotiate->id_len != n || - memcmp( ssl->session_negotiate->id, buf + 35, n ) != 0 ) - { - ssl->state++; - ssl->handshake->resume = 0; -#if defined(MBEDTLS_HAVE_TIME) - ssl->session_negotiate->start = mbedtls_time( NULL ); -#endif - ssl->session_negotiate->ciphersuite = i; - ssl->session_negotiate->compression = comp; - ssl->session_negotiate->id_len = n; - memcpy( ssl->session_negotiate->id, buf + 35, n ); - } - else - { - ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC; - - if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - return( ret ); - } - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed", - ssl->handshake->resume ? "a" : "no" ) ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %04x", i ) ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d", buf[37 + n] ) ); - - /* - * Perform cipher suite validation in same way as in ssl_write_client_hello. - */ - i = 0; - while( 1 ) - { - if( ssl->conf->ciphersuite_list[ssl->minor_ver][i] == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - if( ssl->conf->ciphersuite_list[ssl->minor_ver][i++] == - ssl->session_negotiate->ciphersuite ) - { - break; - } - } - - suite_info = mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite ); - if( ssl_validate_ciphersuite( suite_info, ssl, ssl->minor_ver, ssl->minor_ver ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s", suite_info->name ) ); - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA && - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - ssl->handshake->ecrs_enabled = 1; - } -#endif - - if( comp != MBEDTLS_SSL_COMPRESS_NULL -#if defined(MBEDTLS_ZLIB_SUPPORT) - && comp != MBEDTLS_SSL_COMPRESS_DEFLATE -#endif - ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - ssl->session_negotiate->compression = comp; - - ext = buf + 40 + n; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "server hello, total extension length: %d", ext_len ) ); - - while( ext_len ) - { - unsigned int ext_id = ( ( ext[0] << 8 ) - | ( ext[1] ) ); - unsigned int ext_size = ( ( ext[2] << 8 ) - | ( ext[3] ) ); - - if( ext_size + 4 > ext_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - switch( ext_id ) - { - case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) ); -#if defined(MBEDTLS_SSL_RENEGOTIATION) - renegotiation_info_seen = 1; -#endif - - if( ( ret = ssl_parse_renegotiation_info( ssl, ext + 4, - ext_size ) ) != 0 ) - return( ret ); - - break; - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max_fragment_length extension" ) ); - - if( ( ret = ssl_parse_max_fragment_length_ext( ssl, - ext + 4, ext_size ) ) != 0 ) - { - return( ret ); - } - - break; -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - case MBEDTLS_TLS_EXT_TRUNCATED_HMAC: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated_hmac extension" ) ); - - if( ( ret = ssl_parse_truncated_hmac_ext( ssl, - ext + 4, ext_size ) ) != 0 ) - { - return( ret ); - } - - break; -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt_then_mac extension" ) ); - - if( ( ret = ssl_parse_encrypt_then_mac_ext( ssl, - ext + 4, ext_size ) ) != 0 ) - { - return( ret ); - } - - break; -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended_master_secret extension" ) ); - - if( ( ret = ssl_parse_extended_ms_ext( ssl, - ext + 4, ext_size ) ) != 0 ) - { - return( ret ); - } - - break; -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - case MBEDTLS_TLS_EXT_SESSION_TICKET: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session_ticket extension" ) ); - - if( ( ret = ssl_parse_session_ticket_ext( ssl, - ext + 4, ext_size ) ) != 0 ) - { - return( ret ); - } - - break; -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported_point_formats extension" ) ); - - if( ( ret = ssl_parse_supported_point_formats_ext( ssl, - ext + 4, ext_size ) ) != 0 ) - { - return( ret ); - } - - break; -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || - MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - case MBEDTLS_TLS_EXT_ECJPAKE_KKPP: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake_kkpp extension" ) ); - - if( ( ret = ssl_parse_ecjpake_kkpp( ssl, - ext + 4, ext_size ) ) != 0 ) - { - return( ret ); - } - - break; -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_SSL_ALPN) - case MBEDTLS_TLS_EXT_ALPN: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) ); - - if( ( ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size ) ) != 0 ) - return( ret ); - - break; -#endif /* MBEDTLS_SSL_ALPN */ - - default: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)", - ext_id ) ); - } - - ext_len -= 4 + ext_size; - ext += 4 + ext_size; - - if( ext_len > 0 && ext_len < 4 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - } - - /* - * Renegotiation security checks - */ - if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && - ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) ); - handshake_failure = 1; - } -#if defined(MBEDTLS_SSL_RENEGOTIATION) - else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && - ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION && - renegotiation_info_seen == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) ); - handshake_failure = 1; - } - else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && - ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && - ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) ); - handshake_failure = 1; - } - else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && - ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && - renegotiation_info_seen == 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) ); - handshake_failure = 1; - } -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - - if( handshake_failure == 1 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) -static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl, unsigned char **p, - unsigned char *end ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - - /* - * Ephemeral DH parameters: - * - * struct { - * opaque dh_p<1..2^16-1>; - * opaque dh_g<1..2^16-1>; - * opaque dh_Ys<1..2^16-1>; - * } ServerDHParams; - */ - if( ( ret = mbedtls_dhm_read_params( &ssl->handshake->dhm_ctx, p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 2, ( "mbedtls_dhm_read_params" ), ret ); - return( ret ); - } - - if( ssl->handshake->dhm_ctx.len * 8 < ssl->conf->dhm_min_bitlen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "DHM prime too short: %d < %d", - ssl->handshake->dhm_ctx.len * 8, - ssl->conf->dhm_min_bitlen ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P ); - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G ); - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY ); - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) -static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) -{ - const mbedtls_ecp_curve_info *curve_info; - mbedtls_ecp_group_id grp_id; -#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT) - grp_id = ssl->handshake->ecdh_ctx.grp.id; -#else - grp_id = ssl->handshake->ecdh_ctx.grp_id; -#endif - - curve_info = mbedtls_ecp_curve_info_from_grp_id( grp_id ); - if( curve_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", curve_info->name ) ); - -#if defined(MBEDTLS_ECP_C) - if( mbedtls_ssl_check_curve( ssl, grp_id ) != 0 ) -#else - if( ssl->handshake->ecdh_ctx.grp.nbits < 163 || - ssl->handshake->ecdh_ctx.grp.nbits > 521 ) -#endif - return( -1 ); - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_QP ); - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ - -#if defined(MBEDTLS_USE_PSA_CRYPTO) && \ - ( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ) -static int ssl_parse_server_ecdh_params_psa( mbedtls_ssl_context *ssl, - unsigned char **p, - unsigned char *end ) -{ - uint16_t tls_id; - uint8_t ecpoint_len; - mbedtls_ssl_handshake_params *handshake = ssl->handshake; - - /* - * Parse ECC group - */ - - if( end - *p < 4 ) - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - - /* First byte is curve_type; only named_curve is handled */ - if( *(*p)++ != MBEDTLS_ECP_TLS_NAMED_CURVE ) - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - - /* Next two bytes are the namedcurve value */ - tls_id = *(*p)++; - tls_id <<= 8; - tls_id |= *(*p)++; - - /* Convert EC group to PSA key type. */ - if( ( handshake->ecdh_psa_curve = - mbedtls_psa_parse_tls_ecc_group( tls_id ) ) == 0 ) - { - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - /* - * Put peer's ECDH public key in the format understood by PSA. - */ - - ecpoint_len = *(*p)++; - if( (size_t)( end - *p ) < ecpoint_len ) - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - - if( mbedtls_psa_tls_ecpoint_to_psa_ec( handshake->ecdh_psa_curve, - *p, ecpoint_len, - handshake->ecdh_psa_peerkey, - sizeof( handshake->ecdh_psa_peerkey ), - &handshake->ecdh_psa_peerkey_len ) != 0 ) - { - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - *p += ecpoint_len; - return( 0 ); -} -#endif /* MBEDTLS_USE_PSA_CRYPTO && - ( MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ) */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) -static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl, - unsigned char **p, - unsigned char *end ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - - /* - * Ephemeral ECDH parameters: - * - * struct { - * ECParameters curve_params; - * ECPoint public; - * } ServerECDHParams; - */ - if( ( ret = mbedtls_ecdh_read_params( &ssl->handshake->ecdh_ctx, - (const unsigned char **) p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_read_params" ), ret ); -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS; -#endif - return( ret ); - } - - if( ssl_check_server_ecdh_params( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message (ECDHE curve)" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl, - unsigned char **p, - unsigned char *end ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - size_t len; - ((void) ssl); - - /* - * PSK parameters: - * - * opaque psk_identity_hint<0..2^16-1>; - */ - if( end - (*p) < 2 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message " - "(psk_identity_hint length)" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - len = (*p)[0] << 8 | (*p)[1]; - *p += 2; - - if( end - (*p) < (int) len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message " - "(psk_identity_hint length)" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - /* - * Note: we currently ignore the PKS identity hint, as we only allow one - * PSK to be provisionned on the client. This could be changed later if - * someone needs that feature. - */ - *p += len; - ret = 0; - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) -/* - * Generate a pre-master secret and encrypt it with the server's RSA key - */ -static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl, - size_t offset, size_t *olen, - size_t pms_offset ) -{ - int ret; - size_t len_bytes = ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ? 0 : 2; - unsigned char *p = ssl->handshake->premaster + pms_offset; - mbedtls_pk_context * peer_pk; - - if( offset + len_bytes > MBEDTLS_SSL_OUT_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small for encrypted pms" ) ); - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - } - - /* - * Generate (part of) the pre-master as - * struct { - * ProtocolVersion client_version; - * opaque random[46]; - * } PreMasterSecret; - */ - mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver, - ssl->conf->transport, p ); - - if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p + 2, 46 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "f_rng", ret ); - return( ret ); - } - - ssl->handshake->pmslen = 48; - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - peer_pk = &ssl->handshake->peer_pubkey; -#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( ssl->session_negotiate->peer_cert == NULL ) - { - /* Should never happen */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - peer_pk = &ssl->session_negotiate->peer_cert->pk; -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - /* - * Now write it out, encrypted - */ - if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_RSA ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate key type mismatch" ) ); - return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); - } - - if( ( ret = mbedtls_pk_encrypt( peer_pk, - p, ssl->handshake->pmslen, - ssl->out_msg + offset + len_bytes, olen, - MBEDTLS_SSL_OUT_CONTENT_LEN - offset - len_bytes, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_rsa_pkcs1_encrypt", ret ); - return( ret ); - } - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( len_bytes == 2 ) - { - ssl->out_msg[offset+0] = (unsigned char)( *olen >> 8 ); - ssl->out_msg[offset+1] = (unsigned char)( *olen ); - *olen += 2; - } -#endif - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - /* We don't need the peer's public key anymore. Free it. */ - mbedtls_pk_free( peer_pk ); -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) -static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl, - unsigned char **p, - unsigned char *end, - mbedtls_md_type_t *md_alg, - mbedtls_pk_type_t *pk_alg ) -{ - ((void) ssl); - *md_alg = MBEDTLS_MD_NONE; - *pk_alg = MBEDTLS_PK_NONE; - - /* Only in TLS 1.2 */ - if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) - { - return( 0 ); - } - - if( (*p) + 2 > end ) - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - - /* - * Get hash algorithm - */ - if( ( *md_alg = mbedtls_ssl_md_alg_from_hash( (*p)[0] ) ) == MBEDTLS_MD_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Server used unsupported " - "HashAlgorithm %d", *(p)[0] ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - /* - * Get signature algorithm - */ - if( ( *pk_alg = mbedtls_ssl_pk_alg_from_sig( (*p)[1] ) ) == MBEDTLS_PK_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used unsupported " - "SignatureAlgorithm %d", (*p)[1] ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - /* - * Check if the hash is acceptable - */ - if( mbedtls_ssl_check_sig_hash( ssl, *md_alg ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used HashAlgorithm %d that was not offered", - *(p)[0] ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used SignatureAlgorithm %d", (*p)[1] ) ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used HashAlgorithm %d", (*p)[0] ) ); - *p += 2; - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) -static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) -{ - int ret; - const mbedtls_ecp_keypair *peer_key; - mbedtls_pk_context * peer_pk; - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - peer_pk = &ssl->handshake->peer_pubkey; -#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( ssl->session_negotiate->peer_cert == NULL ) - { - /* Should never happen */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - peer_pk = &ssl->session_negotiate->peer_cert->pk; -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_ECKEY ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) ); - return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); - } - - peer_key = mbedtls_pk_ec( *peer_pk ); - - if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, peer_key, - MBEDTLS_ECDH_THEIRS ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret ); - return( ret ); - } - - if( ssl_check_server_ecdh_params( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server certificate (ECDH curve)" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); - } - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - /* We don't need the peer's public key anymore. Free it, - * so that more RAM is available for upcoming expensive - * operations like ECDHE. */ - mbedtls_pk_free( peer_pk ); -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || - MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ - -static int ssl_parse_server_key_exchange( mbedtls_ssl_context *ssl ) -{ - int ret; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - unsigned char *p = NULL, *end = NULL; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server key exchange" ) ); - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) ); - ssl->state++; - return( 0 ); - } - ((void) p); - ((void) end); -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA ) - { - if( ( ret = ssl_get_ecdh_params_from_cert( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) ); - ssl->state++; - return( 0 ); - } - ((void) p); - ((void) end); -#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled && - ssl->handshake->ecrs_state == ssl_ecrs_ske_start_processing ) - { - goto start_processing; - } -#endif - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - /* - * ServerKeyExchange may be skipped with PSK and RSA-PSK when the server - * doesn't use a psk_identity_hint - */ - if( ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE ) - { - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - { - /* Current message is probably either - * CertificateRequest or ServerHelloDone */ - ssl->keep_current_message = 1; - goto exit; - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key exchange message must " - "not be skipped" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled ) - ssl->handshake->ecrs_state = ssl_ecrs_ske_start_processing; - -start_processing: -#endif - p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); - end = ssl->in_msg + ssl->in_hslen; - MBEDTLS_SSL_DEBUG_BUF( 3, "server key exchange", p, end - p ); - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) - { - if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - } /* FALLTROUGH */ -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - ; /* nothing more to do */ - else -#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED || - MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) - { - if( ssl_parse_server_dh_params( ssl, &p, end ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ -#if defined(MBEDTLS_USE_PSA_CRYPTO) && \ - ( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) - { - if( ssl_parse_server_ecdh_params_psa( ssl, &p, end ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - } - else -#endif /* MBEDTLS_USE_PSA_CRYPTO && - ( MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ) */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) - { - if( ssl_parse_server_ecdh_params( ssl, &p, end ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) - { - ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx, - p, end - p ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) - if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) ) - { - size_t sig_len, hashlen; - unsigned char hash[64]; - mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE; - mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE; - unsigned char *params = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); - size_t params_len = p - params; - void *rs_ctx = NULL; - - mbedtls_pk_context * peer_pk; - - /* - * Handle the digitally-signed structure - */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - if( ssl_parse_signature_algorithm( ssl, &p, end, - &md_alg, &pk_alg ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - if( pk_alg != mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) - { - pk_alg = mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ); - - /* Default hash for ECDSA is SHA-1 */ - if( pk_alg == MBEDTLS_PK_ECDSA && md_alg == MBEDTLS_MD_NONE ) - md_alg = MBEDTLS_MD_SHA1; - } - else -#endif - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* - * Read signature - */ - - if( p > end - 2 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - sig_len = ( p[0] << 8 ) | p[1]; - p += 2; - - if( p != end - sig_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "signature", p, sig_len ); - - /* - * Compute the hash that has been signed - */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( md_alg == MBEDTLS_MD_NONE ) - { - hashlen = 36; - ret = mbedtls_ssl_get_key_exchange_md_ssl_tls( ssl, hash, params, - params_len ); - if( ret != 0 ) - return( ret ); - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ - MBEDTLS_SSL_PROTO_TLS1_1 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( md_alg != MBEDTLS_MD_NONE ) - { - ret = mbedtls_ssl_get_key_exchange_md_tls1_2( ssl, hash, &hashlen, - params, params_len, - md_alg ); - if( ret != 0 ) - return( ret ); - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ - MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen ); - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - peer_pk = &ssl->handshake->peer_pubkey; -#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( ssl->session_negotiate->peer_cert == NULL ) - { - /* Should never happen */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - peer_pk = &ssl->session_negotiate->peer_cert->pk; -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - /* - * Verify signature - */ - if( !mbedtls_pk_can_do( peer_pk, pk_alg ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); - } - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled ) - rs_ctx = &ssl->handshake->ecrs_ctx.pk; -#endif - - if( ( ret = mbedtls_pk_verify_restartable( peer_pk, - md_alg, hash, hashlen, p, sig_len, rs_ctx ) ) != 0 ) - { -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS ) -#endif - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR ); - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret ); -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS; -#endif - return( ret ); - } - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - /* We don't need the peer's public key anymore. Free it, - * so that more RAM is available for upcoming expensive - * operations like ECDHE. */ - mbedtls_pk_free( peer_pk ); -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - } -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */ - -exit: - ssl->state++; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server key exchange" ) ); - - return( 0 ); -} - -#if ! defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED) -static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) ); - - if( ! mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) ); - ssl->state++; - return( 0 ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); -} -#else /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ -static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl ) -{ - int ret; - unsigned char *buf; - size_t n = 0; - size_t cert_type_len = 0, dn_len = 0; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) ); - - if( ! mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) ); - ssl->state++; - return( 0 ); - } - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - ssl->state++; - ssl->client_auth = ( ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE_REQUEST ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "got %s certificate request", - ssl->client_auth ? "a" : "no" ) ); - - if( ssl->client_auth == 0 ) - { - /* Current message is probably the ServerHelloDone */ - ssl->keep_current_message = 1; - goto exit; - } - - /* - * struct { - * ClientCertificateType certificate_types<1..2^8-1>; - * SignatureAndHashAlgorithm - * supported_signature_algorithms<2^16-1>; -- TLS 1.2 only - * DistinguishedName certificate_authorities<0..2^16-1>; - * } CertificateRequest; - * - * Since we only support a single certificate on clients, let's just - * ignore all the information that's supposed to help us pick a - * certificate. - * - * We could check that our certificate matches the request, and bail out - * if it doesn't, but it's simpler to just send the certificate anyway, - * and give the server the opportunity to decide if it should terminate - * the connection when it doesn't like our certificate. - * - * Same goes for the hash in TLS 1.2's signature_algorithms: at this - * point we only have one hash available (see comments in - * write_certificate_verify), so let's just use what we have. - * - * However, we still minimally parse the message to check it is at least - * superficially sane. - */ - buf = ssl->in_msg; - - /* certificate_types */ - if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST ); - } - cert_type_len = buf[mbedtls_ssl_hs_hdr_len( ssl )]; - n = cert_type_len; - - /* - * In the subsequent code there are two paths that read from buf: - * * the length of the signature algorithms field (if minor version of - * SSL is 3), - * * distinguished name length otherwise. - * Both reach at most the index: - * ...hdr_len + 2 + n, - * therefore the buffer length at this point must be greater than that - * regardless of the actual code path. - */ - if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST ); - } - - /* supported_signature_algorithms */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - size_t sig_alg_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] << 8 ) - | ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n] ) ); -#if defined(MBEDTLS_DEBUG_C) - unsigned char* sig_alg; - size_t i; -#endif - - /* - * The furthest access in buf is in the loop few lines below: - * sig_alg[i + 1], - * where: - * sig_alg = buf + ...hdr_len + 3 + n, - * max(i) = sig_alg_len - 1. - * Therefore the furthest access is: - * buf[...hdr_len + 3 + n + sig_alg_len - 1 + 1], - * which reduces to: - * buf[...hdr_len + 3 + n + sig_alg_len], - * which is one less than we need the buf to be. - */ - if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n + sig_alg_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST ); - } - -#if defined(MBEDTLS_DEBUG_C) - sig_alg = buf + mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n; - for( i = 0; i < sig_alg_len; i += 2 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Supported Signature Algorithm found: %d" - ",%d", sig_alg[i], sig_alg[i + 1] ) ); - } -#endif - - n += 2 + sig_alg_len; - } -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - - /* certificate_authorities */ - dn_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] << 8 ) - | ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n] ) ); - - n += dn_len; - if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST ); - } - -exit: - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate request" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ - -static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello done" ) ); - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) || - ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_HELLO_DONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE ); - } - - ssl->state++; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_recv_flight_completed( ssl ); -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello done" ) ); - - return( 0 ); -} - -static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl ) -{ - int ret; - - size_t header_len; - size_t content_len; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client key exchange" ) ); - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA ) - { - /* - * DHM key exchange -- send G^X mod P - */ - content_len = ssl->handshake->dhm_ctx.len; - - ssl->out_msg[4] = (unsigned char)( content_len >> 8 ); - ssl->out_msg[5] = (unsigned char)( content_len ); - header_len = 6; - - ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx, - (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ), - &ssl->out_msg[header_len], content_len, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X ); - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX ); - - if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx, - ssl->handshake->premaster, - MBEDTLS_PREMASTER_SIZE, - &ssl->handshake->pmslen, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ -#if defined(MBEDTLS_USE_PSA_CRYPTO) && \ - ( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) - { - psa_status_t status; - psa_key_policy_t policy; - - mbedtls_ssl_handshake_params *handshake = ssl->handshake; - - unsigned char own_pubkey[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH]; - size_t own_pubkey_len; - unsigned char *own_pubkey_ecpoint; - size_t own_pubkey_ecpoint_len; - - psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT; - - header_len = 4; - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based ECDH computation." ) ); - - /* - * Generate EC private key for ECDHE exchange. - */ - - /* Allocate a new key slot for the private key. */ - - status = psa_allocate_key( &handshake->ecdh_psa_privkey ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - /* The master secret is obtained from the shared ECDH secret by - * applying the TLS 1.2 PRF with a specific salt and label. While - * the PSA Crypto API encourages combining key agreement schemes - * such as ECDH with fixed KDFs such as TLS 1.2 PRF, it does not - * yet support the provisioning of salt + label to the KDF. - * For the time being, we therefore need to split the computation - * of the ECDH secret and the application of the TLS 1.2 PRF. */ - policy = psa_key_policy_init(); - psa_key_policy_set_usage( &policy, - PSA_KEY_USAGE_DERIVE, - PSA_ALG_ECDH( PSA_ALG_SELECT_RAW ) ); - status = psa_set_key_policy( handshake->ecdh_psa_privkey, &policy ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - /* Generate ECDH private key. */ - status = psa_generate_key( handshake->ecdh_psa_privkey, - PSA_KEY_TYPE_ECC_KEYPAIR( handshake->ecdh_psa_curve ), - MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( handshake->ecdh_psa_curve ), - NULL, 0 ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - /* Export the public part of the ECDH private key from PSA - * and convert it to ECPoint format used in ClientKeyExchange. */ - status = psa_export_public_key( handshake->ecdh_psa_privkey, - own_pubkey, sizeof( own_pubkey ), - &own_pubkey_len ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - if( mbedtls_psa_tls_psa_ec_to_ecpoint( own_pubkey, - own_pubkey_len, - &own_pubkey_ecpoint, - &own_pubkey_ecpoint_len ) != 0 ) - { - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - /* Copy ECPoint structure to outgoing message buffer. */ - ssl->out_msg[header_len] = own_pubkey_ecpoint_len; - memcpy( ssl->out_msg + header_len + 1, - own_pubkey_ecpoint, own_pubkey_ecpoint_len ); - content_len = own_pubkey_ecpoint_len + 1; - - /* Compute ECDH shared secret. */ - status = psa_key_agreement( &generator, - handshake->ecdh_psa_privkey, - handshake->ecdh_psa_peerkey, - handshake->ecdh_psa_peerkey_len, - PSA_ALG_ECDH( PSA_ALG_SELECT_RAW ) ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - /* The ECDH secret is the premaster secret used for key derivation. */ - - ssl->handshake->pmslen = - MBEDTLS_PSA_ECC_KEY_BYTES_OF_CURVE( handshake->ecdh_psa_curve ); - - status = psa_generator_read( &generator, - ssl->handshake->premaster, - ssl->handshake->pmslen ); - if( status != PSA_SUCCESS ) - { - psa_generator_abort( &generator ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - status = psa_generator_abort( &generator ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - status = psa_destroy_key( handshake->ecdh_psa_privkey ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - handshake->ecdh_psa_privkey = 0; - } - else -#endif /* MBEDTLS_USE_PSA_CRYPTO && - ( MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ) */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA ) - { - /* - * ECDH key exchange -- send client public value - */ - header_len = 4; - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled ) - { - if( ssl->handshake->ecrs_state == ssl_ecrs_cke_ecdh_calc_secret ) - goto ecdh_calc_secret; - - mbedtls_ecdh_enable_restart( &ssl->handshake->ecdh_ctx ); - } -#endif - - ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx, - &content_len, - &ssl->out_msg[header_len], 1000, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret ); -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS; -#endif - return( ret ); - } - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_Q ); - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled ) - { - ssl->handshake->ecrs_n = content_len; - ssl->handshake->ecrs_state = ssl_ecrs_cke_ecdh_calc_secret; - } - -ecdh_calc_secret: - if( ssl->handshake->ecrs_enabled ) - content_len = ssl->handshake->ecrs_n; -#endif - if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, - &ssl->handshake->pmslen, - ssl->handshake->premaster, - MBEDTLS_MPI_MAX_SIZE, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret ); -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS; -#endif - return( ret ); - } - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_Z ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - if( mbedtls_ssl_ciphersuite_uses_psk( ciphersuite_info ) ) - { - /* - * opaque psk_identity<0..2^16-1>; - */ - if( ssl_conf_has_static_psk( ssl->conf ) == 0 ) - { - /* We don't offer PSK suites if we don't have a PSK, - * and we check that the server's choice is among the - * ciphersuites we offered, so this should never happen. */ - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - header_len = 4; - content_len = ssl->conf->psk_identity_len; - - if( header_len + 2 + content_len > MBEDTLS_SSL_OUT_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity too long or " - "SSL buffer too short" ) ); - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - } - - ssl->out_msg[header_len++] = (unsigned char)( content_len >> 8 ); - ssl->out_msg[header_len++] = (unsigned char)( content_len ); - - memcpy( ssl->out_msg + header_len, - ssl->conf->psk_identity, - ssl->conf->psk_identity_len ); - header_len += ssl->conf->psk_identity_len; - -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ) - { - content_len = 0; - } - else -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - { -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* Opaque PSKs are currently only supported for PSK-only suites. */ - if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 ) - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - - if( ( ret = ssl_write_encrypted_pms( ssl, header_len, - &content_len, 2 ) ) != 0 ) - return( ret ); - } - else -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) - { -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* Opaque PSKs are currently only supported for PSK-only suites. */ - if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 ) - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - - /* - * ClientDiffieHellmanPublic public (DHM send G^X mod P) - */ - content_len = ssl->handshake->dhm_ctx.len; - - if( header_len + 2 + content_len > - MBEDTLS_SSL_OUT_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity or DHM size too long" - " or SSL buffer too short" ) ); - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - } - - ssl->out_msg[header_len++] = (unsigned char)( content_len >> 8 ); - ssl->out_msg[header_len++] = (unsigned char)( content_len ); - - ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx, - (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ), - &ssl->out_msg[header_len], content_len, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) - { -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* Opaque PSKs are currently only supported for PSK-only suites. */ - if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 ) - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - - /* - * ClientECDiffieHellmanPublic public; - */ - ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx, - &content_len, - &ssl->out_msg[header_len], - MBEDTLS_SSL_OUT_CONTENT_LEN - header_len, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_Q ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_USE_PSA_CRYPTO) && \ - defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK && - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 && - ssl_conf_has_static_raw_psk( ssl->conf ) == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "skip PMS generation for opaque PSK" ) ); - } - else -#endif /* MBEDTLS_USE_PSA_CRYPTO && - MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ - if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, - ciphersuite_info->key_exchange ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) - { - header_len = 4; - if( ( ret = ssl_write_encrypted_pms( ssl, header_len, - &content_len, 0 ) ) != 0 ) - return( ret ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) - { - header_len = 4; - - ret = mbedtls_ecjpake_write_round_two( &ssl->handshake->ecjpake_ctx, - ssl->out_msg + header_len, - MBEDTLS_SSL_OUT_CONTENT_LEN - header_len, - &content_len, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret ); - return( ret ); - } - - ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx, - ssl->handshake->premaster, 32, &ssl->handshake->pmslen, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ - { - ((void) ciphersuite_info); - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - ssl->out_msglen = header_len + content_len; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE; - - ssl->state++; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client key exchange" ) ); - - return( 0 ); -} - -#if !defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED) -static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) ); - - if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); - return( ret ); - } - - if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) ); - ssl->state++; - return( 0 ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); -} -#else /* !MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ -static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - size_t n = 0, offset = 0; - unsigned char hash[48]; - unsigned char *hash_start = hash; - mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE; - unsigned int hashlen; - void *rs_ctx = NULL; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) ); - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled && - ssl->handshake->ecrs_state == ssl_ecrs_crt_vrfy_sign ) - { - goto sign; - } -#endif - - if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); - return( ret ); - } - - if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) ); - ssl->state++; - return( 0 ); - } - - if( ssl->client_auth == 0 || mbedtls_ssl_own_cert( ssl ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) ); - ssl->state++; - return( 0 ); - } - - if( mbedtls_ssl_own_key( ssl ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key for certificate" ) ); - return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); - } - - /* - * Make a signature of the handshake digests - */ -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled ) - ssl->handshake->ecrs_state = ssl_ecrs_crt_vrfy_sign; - -sign: -#endif - - ssl->handshake->calc_verify( ssl, hash ); - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) - { - /* - * digitally-signed struct { - * opaque md5_hash[16]; - * opaque sha_hash[20]; - * }; - * - * md5_hash - * MD5(handshake_messages); - * - * sha_hash - * SHA(handshake_messages); - */ - hashlen = 36; - md_alg = MBEDTLS_MD_NONE; - - /* - * For ECDSA, default hash is SHA-1 only - */ - if( mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECDSA ) ) - { - hash_start += 16; - hashlen -= 16; - md_alg = MBEDTLS_MD_SHA1; - } - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ - MBEDTLS_SSL_PROTO_TLS1_1 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - /* - * digitally-signed struct { - * opaque handshake_messages[handshake_messages_length]; - * }; - * - * Taking shortcut here. We assume that the server always allows the - * PRF Hash function and has sent it in the allowed signature - * algorithms list received in the Certificate Request message. - * - * Until we encounter a server that does not, we will take this - * shortcut. - * - * Reason: Otherwise we should have running hashes for SHA512 and SHA224 - * in order to satisfy 'weird' needs from the server side. - */ - if( ssl->transform_negotiate->ciphersuite_info->mac == - MBEDTLS_MD_SHA384 ) - { - md_alg = MBEDTLS_MD_SHA384; - ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA384; - } - else - { - md_alg = MBEDTLS_MD_SHA256; - ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA256; - } - ssl->out_msg[5] = mbedtls_ssl_sig_from_pk( mbedtls_ssl_own_key( ssl ) ); - - /* Info from md_alg will be used instead */ - hashlen = 0; - offset = 2; - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled ) - rs_ctx = &ssl->handshake->ecrs_ctx.pk; -#endif - - if( ( ret = mbedtls_pk_sign_restartable( mbedtls_ssl_own_key( ssl ), - md_alg, hash_start, hashlen, - ssl->out_msg + 6 + offset, &n, - ssl->conf->f_rng, ssl->conf->p_rng, rs_ctx ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret ); -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS; -#endif - return( ret ); - } - - ssl->out_msg[4 + offset] = (unsigned char)( n >> 8 ); - ssl->out_msg[5 + offset] = (unsigned char)( n ); - - ssl->out_msglen = 6 + n + offset; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE_VERIFY; - - ssl->state++; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate verify" ) ); - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -static int ssl_parse_new_session_ticket( mbedtls_ssl_context *ssl ) -{ - int ret; - uint32_t lifetime; - size_t ticket_len; - unsigned char *ticket; - const unsigned char *msg; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse new session ticket" ) ); - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - /* - * struct { - * uint32 ticket_lifetime_hint; - * opaque ticket<0..2^16-1>; - * } NewSessionTicket; - * - * 0 . 3 ticket_lifetime_hint - * 4 . 5 ticket_len (n) - * 6 . 5+n ticket content - */ - if( ssl->in_msg[0] != MBEDTLS_SSL_HS_NEW_SESSION_TICKET || - ssl->in_hslen < 6 + mbedtls_ssl_hs_hdr_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET ); - } - - msg = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); - - lifetime = ( ((uint32_t) msg[0]) << 24 ) | ( msg[1] << 16 ) | - ( msg[2] << 8 ) | ( msg[3] ); - - ticket_len = ( msg[4] << 8 ) | ( msg[5] ); - - if( ticket_len + 6 + mbedtls_ssl_hs_hdr_len( ssl ) != ssl->in_hslen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", ticket_len ) ); - - /* We're not waiting for a NewSessionTicket message any more */ - ssl->handshake->new_session_ticket = 0; - ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC; - - /* - * Zero-length ticket means the server changed his mind and doesn't want - * to send a ticket after all, so just forget it - */ - if( ticket_len == 0 ) - return( 0 ); - - if( ssl->session != NULL && ssl->session->ticket != NULL ) - { - mbedtls_platform_zeroize( ssl->session->ticket, - ssl->session->ticket_len ); - mbedtls_free( ssl->session->ticket ); - ssl->session->ticket = NULL; - ssl->session->ticket_len = 0; - } - - mbedtls_platform_zeroize( ssl->session_negotiate->ticket, - ssl->session_negotiate->ticket_len ); - mbedtls_free( ssl->session_negotiate->ticket ); - ssl->session_negotiate->ticket = NULL; - ssl->session_negotiate->ticket_len = 0; - - if( ( ticket = mbedtls_calloc( 1, ticket_len ) ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "ticket alloc failed" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - - memcpy( ticket, msg + 6, ticket_len ); - - ssl->session_negotiate->ticket = ticket; - ssl->session_negotiate->ticket_len = ticket_len; - ssl->session_negotiate->ticket_lifetime = lifetime; - - /* - * RFC 5077 section 3.4: - * "If the client receives a session ticket from the server, then it - * discards any Session ID that was sent in the ServerHello." - */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket in use, discarding session id" ) ); - ssl->session_negotiate->id_len = 0; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse new session ticket" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -/* - * SSL handshake -- client side -- single step - */ -int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl ) -{ - int ret = 0; - - if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "client state: %d", ssl->state ) ); - - if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - return( ret ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) - { - if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - return( ret ); - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - /* Change state now, so that it is right in mbedtls_ssl_read_record(), used - * by DTLS for dropping out-of-sequence ChangeCipherSpec records */ -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - if( ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC && - ssl->handshake->new_session_ticket != 0 ) - { - ssl->state = MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET; - } -#endif - - switch( ssl->state ) - { - case MBEDTLS_SSL_HELLO_REQUEST: - ssl->state = MBEDTLS_SSL_CLIENT_HELLO; - break; - - /* - * ==> ClientHello - */ - case MBEDTLS_SSL_CLIENT_HELLO: - ret = ssl_write_client_hello( ssl ); - break; - - /* - * <== ServerHello - * Certificate - * ( ServerKeyExchange ) - * ( CertificateRequest ) - * ServerHelloDone - */ - case MBEDTLS_SSL_SERVER_HELLO: - ret = ssl_parse_server_hello( ssl ); - break; - - case MBEDTLS_SSL_SERVER_CERTIFICATE: - ret = mbedtls_ssl_parse_certificate( ssl ); - break; - - case MBEDTLS_SSL_SERVER_KEY_EXCHANGE: - ret = ssl_parse_server_key_exchange( ssl ); - break; - - case MBEDTLS_SSL_CERTIFICATE_REQUEST: - ret = ssl_parse_certificate_request( ssl ); - break; - - case MBEDTLS_SSL_SERVER_HELLO_DONE: - ret = ssl_parse_server_hello_done( ssl ); - break; - - /* - * ==> ( Certificate/Alert ) - * ClientKeyExchange - * ( CertificateVerify ) - * ChangeCipherSpec - * Finished - */ - case MBEDTLS_SSL_CLIENT_CERTIFICATE: - ret = mbedtls_ssl_write_certificate( ssl ); - break; - - case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE: - ret = ssl_write_client_key_exchange( ssl ); - break; - - case MBEDTLS_SSL_CERTIFICATE_VERIFY: - ret = ssl_write_certificate_verify( ssl ); - break; - - case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC: - ret = mbedtls_ssl_write_change_cipher_spec( ssl ); - break; - - case MBEDTLS_SSL_CLIENT_FINISHED: - ret = mbedtls_ssl_write_finished( ssl ); - break; - - /* - * <== ( NewSessionTicket ) - * ChangeCipherSpec - * Finished - */ -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - case MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET: - ret = ssl_parse_new_session_ticket( ssl ); - break; -#endif - - case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC: - ret = mbedtls_ssl_parse_change_cipher_spec( ssl ); - break; - - case MBEDTLS_SSL_SERVER_FINISHED: - ret = mbedtls_ssl_parse_finished( ssl ); - break; - - case MBEDTLS_SSL_FLUSH_BUFFERS: - MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) ); - ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; - break; - - case MBEDTLS_SSL_HANDSHAKE_WRAPUP: - mbedtls_ssl_handshake_wrapup( ssl ); - break; - - default: - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - return( ret ); -} -#endif /* MBEDTLS_SSL_CLI_C */ diff --git a/library/ssl_cookie.c b/library/ssl_cookie.c deleted file mode 100644 index 56e9bdd2b..000000000 --- a/library/ssl_cookie.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * DTLS cookie callbacks implementation - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * These session callbacks use a simple chained list - * to store and retrieve the session information. - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_SSL_COOKIE_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include "mbedtls/ssl_cookie.h" -#include "mbedtls/ssl_internal.h" -#include "mbedtls/platform_util.h" - -#include - -/* - * If DTLS is in use, then at least one of SHA-1, SHA-256, SHA-512 is - * available. Try SHA-256 first, 512 wastes resources since we need to stay - * with max 32 bytes of cookie for DTLS 1.0 - */ -#if defined(MBEDTLS_SHA256_C) -#define COOKIE_MD MBEDTLS_MD_SHA224 -#define COOKIE_MD_OUTLEN 32 -#define COOKIE_HMAC_LEN 28 -#elif defined(MBEDTLS_SHA512_C) -#define COOKIE_MD MBEDTLS_MD_SHA384 -#define COOKIE_MD_OUTLEN 48 -#define COOKIE_HMAC_LEN 28 -#elif defined(MBEDTLS_SHA1_C) -#define COOKIE_MD MBEDTLS_MD_SHA1 -#define COOKIE_MD_OUTLEN 20 -#define COOKIE_HMAC_LEN 20 -#else -#error "DTLS hello verify needs SHA-1 or SHA-2" -#endif - -/* - * Cookies are formed of a 4-bytes timestamp (or serial number) and - * an HMAC of timestemp and client ID. - */ -#define COOKIE_LEN ( 4 + COOKIE_HMAC_LEN ) - -void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx ) -{ - mbedtls_md_init( &ctx->hmac_ctx ); -#if !defined(MBEDTLS_HAVE_TIME) - ctx->serial = 0; -#endif - ctx->timeout = MBEDTLS_SSL_COOKIE_TIMEOUT; - -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_init( &ctx->mutex ); -#endif -} - -void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay ) -{ - ctx->timeout = delay; -} - -void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx ) -{ - mbedtls_md_free( &ctx->hmac_ctx ); - -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_free( &ctx->mutex ); -#endif - - mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_cookie_ctx ) ); -} - -int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ) -{ - int ret; - unsigned char key[COOKIE_MD_OUTLEN]; - - if( ( ret = f_rng( p_rng, key, sizeof( key ) ) ) != 0 ) - return( ret ); - - ret = mbedtls_md_setup( &ctx->hmac_ctx, mbedtls_md_info_from_type( COOKIE_MD ), 1 ); - if( ret != 0 ) - return( ret ); - - ret = mbedtls_md_hmac_starts( &ctx->hmac_ctx, key, sizeof( key ) ); - if( ret != 0 ) - return( ret ); - - mbedtls_platform_zeroize( key, sizeof( key ) ); - - return( 0 ); -} - -/* - * Generate the HMAC part of a cookie - */ -static int ssl_cookie_hmac( mbedtls_md_context_t *hmac_ctx, - const unsigned char time[4], - unsigned char **p, unsigned char *end, - const unsigned char *cli_id, size_t cli_id_len ) -{ - unsigned char hmac_out[COOKIE_MD_OUTLEN]; - - if( (size_t)( end - *p ) < COOKIE_HMAC_LEN ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - - if( mbedtls_md_hmac_reset( hmac_ctx ) != 0 || - mbedtls_md_hmac_update( hmac_ctx, time, 4 ) != 0 || - mbedtls_md_hmac_update( hmac_ctx, cli_id, cli_id_len ) != 0 || - mbedtls_md_hmac_finish( hmac_ctx, hmac_out ) != 0 ) - { - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - memcpy( *p, hmac_out, COOKIE_HMAC_LEN ); - *p += COOKIE_HMAC_LEN; - - return( 0 ); -} - -/* - * Generate cookie for DTLS ClientHello verification - */ -int mbedtls_ssl_cookie_write( void *p_ctx, - unsigned char **p, unsigned char *end, - const unsigned char *cli_id, size_t cli_id_len ) -{ - int ret; - mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx; - unsigned long t; - - if( ctx == NULL || cli_id == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( (size_t)( end - *p ) < COOKIE_LEN ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - -#if defined(MBEDTLS_HAVE_TIME) - t = (unsigned long) mbedtls_time( NULL ); -#else - t = ctx->serial++; -#endif - - (*p)[0] = (unsigned char)( t >> 24 ); - (*p)[1] = (unsigned char)( t >> 16 ); - (*p)[2] = (unsigned char)( t >> 8 ); - (*p)[3] = (unsigned char)( t ); - *p += 4; - -#if defined(MBEDTLS_THREADING_C) - if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret ); -#endif - - ret = ssl_cookie_hmac( &ctx->hmac_ctx, *p - 4, - p, end, cli_id, cli_id_len ); - -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + - MBEDTLS_ERR_THREADING_MUTEX_ERROR ); -#endif - - return( ret ); -} - -/* - * Check a cookie - */ -int mbedtls_ssl_cookie_check( void *p_ctx, - const unsigned char *cookie, size_t cookie_len, - const unsigned char *cli_id, size_t cli_id_len ) -{ - unsigned char ref_hmac[COOKIE_HMAC_LEN]; - int ret = 0; - unsigned char *p = ref_hmac; - mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx; - unsigned long cur_time, cookie_time; - - if( ctx == NULL || cli_id == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( cookie_len != COOKIE_LEN ) - return( -1 ); - -#if defined(MBEDTLS_THREADING_C) - if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret ); -#endif - - if( ssl_cookie_hmac( &ctx->hmac_ctx, cookie, - &p, p + sizeof( ref_hmac ), - cli_id, cli_id_len ) != 0 ) - ret = -1; - -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + - MBEDTLS_ERR_THREADING_MUTEX_ERROR ); -#endif - - if( ret != 0 ) - return( ret ); - - if( mbedtls_ssl_safer_memcmp( cookie + 4, ref_hmac, sizeof( ref_hmac ) ) != 0 ) - return( -1 ); - -#if defined(MBEDTLS_HAVE_TIME) - cur_time = (unsigned long) mbedtls_time( NULL ); -#else - cur_time = ctx->serial; -#endif - - cookie_time = ( (unsigned long) cookie[0] << 24 ) | - ( (unsigned long) cookie[1] << 16 ) | - ( (unsigned long) cookie[2] << 8 ) | - ( (unsigned long) cookie[3] ); - - if( ctx->timeout != 0 && cur_time - cookie_time > ctx->timeout ) - return( -1 ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_COOKIE_C */ diff --git a/library/ssl_srv.c b/library/ssl_srv.c deleted file mode 100644 index b8e10d6dc..000000000 --- a/library/ssl_srv.c +++ /dev/null @@ -1,4437 +0,0 @@ -/* - * SSLv3/TLSv1 server-side functions - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_SSL_SRV_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include "mbedtls/debug.h" -#include "mbedtls/ssl.h" -#include "mbedtls/ssl_internal.h" -#include "mbedtls/platform_util.h" - -#include - -#if defined(MBEDTLS_ECP_C) -#include "mbedtls/ecp.h" -#endif - -#if defined(MBEDTLS_HAVE_TIME) -#include "mbedtls/platform_time.h" -#endif - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) -int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl, - const unsigned char *info, - size_t ilen ) -{ - if( ssl->conf->endpoint != MBEDTLS_SSL_IS_SERVER ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - mbedtls_free( ssl->cli_id ); - - if( ( ssl->cli_id = mbedtls_calloc( 1, ilen ) ) == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - memcpy( ssl->cli_id, info, ilen ); - ssl->cli_id_len = ilen; - - return( 0 ); -} - -void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf, - mbedtls_ssl_cookie_write_t *f_cookie_write, - mbedtls_ssl_cookie_check_t *f_cookie_check, - void *p_cookie ) -{ - conf->f_cookie_write = f_cookie_write; - conf->f_cookie_check = f_cookie_check; - conf->p_cookie = p_cookie; -} -#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) -static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - int ret; - size_t servername_list_size, hostname_len; - const unsigned char *p; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "parse ServerName extension" ) ); - - if( len < 2 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - servername_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) ); - if( servername_list_size + 2 != len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - p = buf + 2; - while( servername_list_size > 2 ) - { - hostname_len = ( ( p[1] << 8 ) | p[2] ); - if( hostname_len + 3 > servername_list_size ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - if( p[0] == MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME ) - { - ret = ssl->conf->f_sni( ssl->conf->p_sni, - ssl, p + 3, hostname_len ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_sni_wrapper", ret ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - return( 0 ); - } - - servername_list_size -= hostname_len + 3; - p += hostname_len + 3; - } - - if( servername_list_size != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - return( 0 ); -} -#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -static int ssl_conf_has_psk_or_cb( mbedtls_ssl_config const *conf ) -{ - if( conf->f_psk != NULL ) - return( 1 ); - - if( conf->psk_identity_len == 0 || conf->psk_identity == NULL ) - return( 0 ); - - if( conf->psk != NULL && conf->psk_len != 0 ) - return( 1 ); - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - if( conf->psk_opaque != 0 ) - return( 1 ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - - return( 0 ); -} - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl ) -{ - if( ssl->conf->f_psk != NULL ) - { - /* If we've used a callback to select the PSK, - * the static configuration is irrelevant. */ - - if( ssl->handshake->psk_opaque != 0 ) - return( 1 ); - - return( 0 ); - } - - if( ssl->conf->psk_opaque != 0 ) - return( 1 ); - - return( 0 ); -} -#endif /* MBEDTLS_USE_PSA_CRYPTO */ -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) - { - /* Check verify-data in constant-time. The length OTOH is no secret */ - if( len != 1 + ssl->verify_data_len || - buf[0] != ssl->verify_data_len || - mbedtls_ssl_safer_memcmp( buf + 1, ssl->peer_verify_data, - ssl->verify_data_len ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - } - else -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - { - if( len != 1 || buf[0] != 0x0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; - } - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - -/* - * Status of the implementation of signature-algorithms extension: - * - * Currently, we are only considering the signature-algorithm extension - * to pick a ciphersuite which allows us to send the ServerKeyExchange - * message with a signature-hash combination that the user allows. - * - * We do *not* check whether all certificates in our certificate - * chain are signed with an allowed signature-hash pair. - * This needs to be done at a later stage. - * - */ -static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - size_t sig_alg_list_size; - - const unsigned char *p; - const unsigned char *end = buf + len; - - mbedtls_md_type_t md_cur; - mbedtls_pk_type_t sig_cur; - - if ( len < 2 ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - sig_alg_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) ); - if( sig_alg_list_size + 2 != len || - sig_alg_list_size % 2 != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* Currently we only guarantee signing the ServerKeyExchange message according - * to the constraints specified in this extension (see above), so it suffices - * to remember only one suitable hash for each possible signature algorithm. - * - * This will change when we also consider certificate signatures, - * in which case we will need to remember the whole signature-hash - * pair list from the extension. - */ - - for( p = buf + 2; p < end; p += 2 ) - { - /* Silently ignore unknown signature or hash algorithms. */ - - if( ( sig_cur = mbedtls_ssl_pk_alg_from_sig( p[1] ) ) == MBEDTLS_PK_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext" - " unknown sig alg encoding %d", p[1] ) ); - continue; - } - - /* Check if we support the hash the user proposes */ - md_cur = mbedtls_ssl_md_alg_from_hash( p[0] ); - if( md_cur == MBEDTLS_MD_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext:" - " unknown hash alg encoding %d", p[0] ) ); - continue; - } - - if( mbedtls_ssl_check_sig_hash( ssl, md_cur ) == 0 ) - { - mbedtls_ssl_sig_hash_set_add( &ssl->handshake->hash_algs, sig_cur, md_cur ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext:" - " match sig %d and hash %d", - sig_cur, md_cur ) ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: " - "hash alg %d not supported", md_cur ) ); - } - } - - return( 0 ); -} -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - size_t list_size, our_size; - const unsigned char *p; - const mbedtls_ecp_curve_info *curve_info, **curves; - - if ( len < 2 ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - list_size = ( ( buf[0] << 8 ) | ( buf[1] ) ); - if( list_size + 2 != len || - list_size % 2 != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* Should never happen unless client duplicates the extension */ - if( ssl->handshake->curves != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* Don't allow our peer to make us allocate too much memory, - * and leave room for a final 0 */ - our_size = list_size / 2 + 1; - if( our_size > MBEDTLS_ECP_DP_MAX ) - our_size = MBEDTLS_ECP_DP_MAX; - - if( ( curves = mbedtls_calloc( our_size, sizeof( *curves ) ) ) == NULL ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - - ssl->handshake->curves = curves; - - p = buf + 2; - while( list_size > 0 && our_size > 1 ) - { - curve_info = mbedtls_ecp_curve_info_from_tls_id( ( p[0] << 8 ) | p[1] ); - - if( curve_info != NULL ) - { - *curves++ = curve_info; - our_size--; - } - - list_size -= 2; - p += 2; - } - - return( 0 ); -} - -static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - size_t list_size; - const unsigned char *p; - - if( len == 0 || (size_t)( buf[0] + 1 ) != len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - list_size = buf[0]; - - p = buf + 1; - while( list_size > 0 ) - { - if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED || - p[0] == MBEDTLS_ECP_PF_COMPRESSED ) - { -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) - ssl->handshake->ecdh_ctx.point_format = p[0]; -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - ssl->handshake->ecjpake_ctx.point_format = p[0]; -#endif - MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) ); - return( 0 ); - } - - list_size--; - p++; - } - - return( 0 ); -} -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || - MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - int ret; - - if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) ); - return( 0 ); - } - - if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx, - buf, len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( ret ); - } - - /* Only mark the extension as OK when we're sure it is */ - ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK; - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( len != 1 || buf[0] >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ssl->session_negotiate->mfl_code = buf[0]; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) -static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ((void) buf); - - if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED ) - ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) -static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ((void) buf); - - if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED && - ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) - { - ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED; - } - - return( 0 ); -} -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) -static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) -{ - if( len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ((void) buf); - - if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED && - ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) - { - ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; - } - - return( 0 ); -} -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t len ) -{ - int ret; - mbedtls_ssl_session session; - - mbedtls_ssl_session_init( &session ); - - if( ssl->conf->f_ticket_parse == NULL || - ssl->conf->f_ticket_write == NULL ) - { - return( 0 ); - } - - /* Remember the client asked us to send a new ticket */ - ssl->handshake->new_session_ticket = 1; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", len ) ); - - if( len == 0 ) - return( 0 ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket rejected: renegotiating" ) ); - return( 0 ); - } -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - - /* - * Failures are ok: just ignore the ticket and proceed. - */ - if( ( ret = ssl->conf->f_ticket_parse( ssl->conf->p_ticket, &session, - buf, len ) ) != 0 ) - { - mbedtls_ssl_session_free( &session ); - - if( ret == MBEDTLS_ERR_SSL_INVALID_MAC ) - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is not authentic" ) ); - else if( ret == MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED ) - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is expired" ) ); - else - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_parse", ret ); - - return( 0 ); - } - - /* - * Keep the session ID sent by the client, since we MUST send it back to - * inform them we're accepting the ticket (RFC 5077 section 3.4) - */ - session.id_len = ssl->session_negotiate->id_len; - memcpy( &session.id, ssl->session_negotiate->id, session.id_len ); - - mbedtls_ssl_session_free( ssl->session_negotiate ); - memcpy( ssl->session_negotiate, &session, sizeof( mbedtls_ssl_session ) ); - - /* Zeroize instead of free as we copied the content */ - mbedtls_platform_zeroize( &session, sizeof( mbedtls_ssl_session ) ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from ticket" ) ); - - ssl->handshake->resume = 1; - - /* Don't send a new ticket after all, this one is OK */ - ssl->handshake->new_session_ticket = 0; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -#if defined(MBEDTLS_SSL_ALPN) -static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ - size_t list_len, cur_len, ours_len; - const unsigned char *theirs, *start, *end; - const char **ours; - - /* If ALPN not configured, just ignore the extension */ - if( ssl->conf->alpn_list == NULL ) - return( 0 ); - - /* - * opaque ProtocolName<1..2^8-1>; - * - * struct { - * ProtocolName protocol_name_list<2..2^16-1> - * } ProtocolNameList; - */ - - /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */ - if( len < 4 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - list_len = ( buf[0] << 8 ) | buf[1]; - if( list_len != len - 2 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* - * Validate peer's list (lengths) - */ - start = buf + 2; - end = buf + len; - for( theirs = start; theirs != end; theirs += cur_len ) - { - cur_len = *theirs++; - - /* Current identifier must fit in list */ - if( cur_len > (size_t)( end - theirs ) ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* Empty strings MUST NOT be included */ - if( cur_len == 0 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - } - - /* - * Use our order of preference - */ - for( ours = ssl->conf->alpn_list; *ours != NULL; ours++ ) - { - ours_len = strlen( *ours ); - for( theirs = start; theirs != end; theirs += cur_len ) - { - cur_len = *theirs++; - - if( cur_len == ours_len && - memcmp( theirs, *ours, cur_len ) == 0 ) - { - ssl->alpn_chosen = *ours; - return( 0 ); - } - } - } - - /* If we get there, no match was found */ - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); -} -#endif /* MBEDTLS_SSL_ALPN */ - -/* - * Auxiliary functions for ServerHello parsing and related actions - */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -/* - * Return 0 if the given key uses one of the acceptable curves, -1 otherwise - */ -#if defined(MBEDTLS_ECDSA_C) -static int ssl_check_key_curve( mbedtls_pk_context *pk, - const mbedtls_ecp_curve_info **curves ) -{ - const mbedtls_ecp_curve_info **crv = curves; - mbedtls_ecp_group_id grp_id = mbedtls_pk_ec( *pk )->grp.id; - - while( *crv != NULL ) - { - if( (*crv)->grp_id == grp_id ) - return( 0 ); - crv++; - } - - return( -1 ); -} -#endif /* MBEDTLS_ECDSA_C */ - -/* - * Try picking a certificate for this ciphersuite, - * return 0 on success and -1 on failure. - */ -static int ssl_pick_cert( mbedtls_ssl_context *ssl, - const mbedtls_ssl_ciphersuite_t * ciphersuite_info ) -{ - mbedtls_ssl_key_cert *cur, *list, *fallback = NULL; - mbedtls_pk_type_t pk_alg = - mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ); - uint32_t flags; - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - if( ssl->handshake->sni_key_cert != NULL ) - list = ssl->handshake->sni_key_cert; - else -#endif - list = ssl->conf->key_cert; - - if( pk_alg == MBEDTLS_PK_NONE ) - return( 0 ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite requires certificate" ) ); - - if( list == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server has no certificate" ) ); - return( -1 ); - } - - for( cur = list; cur != NULL; cur = cur->next ) - { - MBEDTLS_SSL_DEBUG_CRT( 3, "candidate certificate chain, certificate", - cur->cert ); - - if( ! mbedtls_pk_can_do( &cur->cert->pk, pk_alg ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: key type" ) ); - continue; - } - - /* - * This avoids sending the client a cert it'll reject based on - * keyUsage or other extensions. - * - * It also allows the user to provision different certificates for - * different uses based on keyUsage, eg if they want to avoid signing - * and decrypting with the same RSA key. - */ - if( mbedtls_ssl_check_cert_usage( cur->cert, ciphersuite_info, - MBEDTLS_SSL_IS_SERVER, &flags ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: " - "(extended) key usage extension" ) ); - continue; - } - -#if defined(MBEDTLS_ECDSA_C) - if( pk_alg == MBEDTLS_PK_ECDSA && - ssl_check_key_curve( &cur->cert->pk, ssl->handshake->curves ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: elliptic curve" ) ); - continue; - } -#endif - - /* - * Try to select a SHA-1 certificate for pre-1.2 clients, but still - * present them a SHA-higher cert rather than failing if it's the only - * one we got that satisfies the other conditions. - */ - if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 && - cur->cert->sig_md != MBEDTLS_MD_SHA1 ) - { - if( fallback == NULL ) - fallback = cur; - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate not preferred: " - "sha-2 with pre-TLS 1.2 client" ) ); - continue; - } - } - - /* If we get there, we got a winner */ - break; - } - - if( cur == NULL ) - cur = fallback; - - /* Do not update ssl->handshake->key_cert unless there is a match */ - if( cur != NULL ) - { - ssl->handshake->key_cert = cur; - MBEDTLS_SSL_DEBUG_CRT( 3, "selected certificate chain, certificate", - ssl->handshake->key_cert->cert ); - return( 0 ); - } - - return( -1 ); -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -/* - * Check if a given ciphersuite is suitable for use with our config/keys/etc - * Sets ciphersuite_info only if the suite matches. - */ -static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id, - const mbedtls_ssl_ciphersuite_t **ciphersuite_info ) -{ - const mbedtls_ssl_ciphersuite_t *suite_info; - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - mbedtls_pk_type_t sig_type; -#endif - - suite_info = mbedtls_ssl_ciphersuite_from_id( suite_id ); - if( suite_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "trying ciphersuite: %s", suite_info->name ) ); - - if( suite_info->min_minor_ver > ssl->minor_ver || - suite_info->max_minor_ver < ssl->minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: version" ) ); - return( 0 ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( suite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) ) - return( 0 ); -#endif - -#if defined(MBEDTLS_ARC4_C) - if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED && - suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: rc4" ) ); - return( 0 ); - } -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE && - ( ssl->handshake->cli_exts & MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK ) == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: ecjpake " - "not configured or ext missing" ) ); - return( 0 ); - } -#endif - - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) - if( mbedtls_ssl_ciphersuite_uses_ec( suite_info ) && - ( ssl->handshake->curves == NULL || - ssl->handshake->curves[0] == NULL ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: " - "no common elliptic curve" ) ); - return( 0 ); - } -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - /* If the ciphersuite requires a pre-shared key and we don't - * have one, skip it now rather than failing later */ - if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) && - ssl_conf_has_psk_or_cb( ssl->conf ) == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no pre-shared key" ) ); - return( 0 ); - } -#endif - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - /* If the ciphersuite requires signing, check whether - * a suitable hash algorithm is present. */ - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - sig_type = mbedtls_ssl_get_ciphersuite_sig_alg( suite_info ); - if( sig_type != MBEDTLS_PK_NONE && - mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs, sig_type ) == MBEDTLS_MD_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no suitable hash algorithm " - "for signature algorithm %d", sig_type ) ); - return( 0 ); - } - } - -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - /* - * Final check: if ciphersuite requires us to have a - * certificate/key of a particular type: - * - select the appropriate certificate if we have one, or - * - try the next ciphersuite if we don't - * This must be done last since we modify the key_cert list. - */ - if( ssl_pick_cert( ssl, suite_info ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: " - "no suitable certificate" ) ); - return( 0 ); - } -#endif - - *ciphersuite_info = suite_info; - return( 0 ); -} - -#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO) -static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl ) -{ - int ret, got_common_suite; - unsigned int i, j; - size_t n; - unsigned int ciph_len, sess_len, chal_len; - unsigned char *buf, *p; - const int *ciphersuites; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello v2" ) ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "client hello v2 illegal for renegotiation" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - - buf = ssl->in_hdr; - - MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, 5 ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message type: %d", - buf[2] ) ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message len.: %d", - ( ( buf[0] & 0x7F ) << 8 ) | buf[1] ) ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, max. version: [%d:%d]", - buf[3], buf[4] ) ); - - /* - * SSLv2 Client Hello - * - * Record layer: - * 0 . 1 message length - * - * SSL layer: - * 2 . 2 message type - * 3 . 4 protocol version - */ - if( buf[2] != MBEDTLS_SSL_HS_CLIENT_HELLO || - buf[3] != MBEDTLS_SSL_MAJOR_VERSION_3 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - n = ( ( buf[0] << 8 ) | buf[1] ) & 0x7FFF; - - if( n < 17 || n > 512 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ssl->major_ver = MBEDTLS_SSL_MAJOR_VERSION_3; - ssl->minor_ver = ( buf[4] <= ssl->conf->max_minor_ver ) - ? buf[4] : ssl->conf->max_minor_ver; - - if( ssl->minor_ver < ssl->conf->min_minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum" - " [%d:%d] < [%d:%d]", - ssl->major_ver, ssl->minor_ver, - ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) ); - - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); - return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); - } - - ssl->handshake->max_major_ver = buf[3]; - ssl->handshake->max_minor_ver = buf[4]; - - if( ( ret = mbedtls_ssl_fetch_input( ssl, 2 + n ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); - return( ret ); - } - - ssl->handshake->update_checksum( ssl, buf + 2, n ); - - buf = ssl->in_msg; - n = ssl->in_left - 5; - - /* - * 0 . 1 ciphersuitelist length - * 2 . 3 session id length - * 4 . 5 challenge length - * 6 . .. ciphersuitelist - * .. . .. session id - * .. . .. challenge - */ - MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, n ); - - ciph_len = ( buf[0] << 8 ) | buf[1]; - sess_len = ( buf[2] << 8 ) | buf[3]; - chal_len = ( buf[4] << 8 ) | buf[5]; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciph_len: %d, sess_len: %d, chal_len: %d", - ciph_len, sess_len, chal_len ) ); - - /* - * Make sure each parameter length is valid - */ - if( ciph_len < 3 || ( ciph_len % 3 ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - if( sess_len > 32 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - if( chal_len < 8 || chal_len > 32 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - if( n != 6 + ciph_len + sess_len + chal_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist", - buf + 6, ciph_len ); - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", - buf + 6 + ciph_len, sess_len ); - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, challenge", - buf + 6 + ciph_len + sess_len, chal_len ); - - p = buf + 6 + ciph_len; - ssl->session_negotiate->id_len = sess_len; - memset( ssl->session_negotiate->id, 0, - sizeof( ssl->session_negotiate->id ) ); - memcpy( ssl->session_negotiate->id, p, ssl->session_negotiate->id_len ); - - p += sess_len; - memset( ssl->handshake->randbytes, 0, 64 ); - memcpy( ssl->handshake->randbytes + 32 - chal_len, p, chal_len ); - - /* - * Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV - */ - for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 ) - { - if( p[0] == 0 && p[1] == 0 && p[2] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) ); -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV " - "during renegotiation" ) ); - - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; - break; - } - } - -#if defined(MBEDTLS_SSL_FALLBACK_SCSV) - for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 ) - { - if( p[0] == 0 && - p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) && - p[2] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "received FALLBACK_SCSV" ) ); - - if( ssl->minor_ver < ssl->conf->max_minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) ); - - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK ); - - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - break; - } - } -#endif /* MBEDTLS_SSL_FALLBACK_SCSV */ - - got_common_suite = 0; - ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver]; - ciphersuite_info = NULL; -#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE) - for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 ) - for( i = 0; ciphersuites[i] != 0; i++ ) -#else - for( i = 0; ciphersuites[i] != 0; i++ ) - for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 ) -#endif - { - if( p[0] != 0 || - p[1] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) || - p[2] != ( ( ciphersuites[i] ) & 0xFF ) ) - continue; - - got_common_suite = 1; - - if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i], - &ciphersuite_info ) ) != 0 ) - return( ret ); - - if( ciphersuite_info != NULL ) - goto have_ciphersuite_v2; - } - - if( got_common_suite ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, " - "but none of them usable" ) ); - return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) ); - return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN ); - } - -have_ciphersuite_v2: - MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) ); - - ssl->session_negotiate->ciphersuite = ciphersuites[i]; - ssl->transform_negotiate->ciphersuite_info = ciphersuite_info; - - /* - * SSLv2 Client Hello relevant renegotiation security checks - */ - if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && - ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ssl->in_left = 0; - ssl->state++; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello v2" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */ - -/* This function doesn't alert on errors that happen early during - ClientHello parsing because they might indicate that the client is - not talking SSL/TLS at all and would not understand our alert. */ -static int ssl_parse_client_hello( mbedtls_ssl_context *ssl ) -{ - int ret, got_common_suite; - size_t i, j; - size_t ciph_offset, comp_offset, ext_offset; - size_t msg_len, ciph_len, sess_len, comp_len, ext_len; -#if defined(MBEDTLS_SSL_PROTO_DTLS) - size_t cookie_offset, cookie_len; -#endif - unsigned char *buf, *p, *ext; -#if defined(MBEDTLS_SSL_RENEGOTIATION) - int renegotiation_info_seen = 0; -#endif - int handshake_failure = 0; - const int *ciphersuites; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info; - int major, minor; - - /* If there is no signature-algorithm extension present, - * we need to fall back to the default values for allowed - * signature-hash pairs. */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - int sig_hash_alg_ext_present = 0; -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello" ) ); - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) -read_record_header: -#endif - /* - * If renegotiating, then the input was read with mbedtls_ssl_read_record(), - * otherwise read it ourselves manually in order to support SSLv2 - * ClientHello, which doesn't use the same record layer format. - */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) -#endif - { - if( ( ret = mbedtls_ssl_fetch_input( ssl, 5 ) ) != 0 ) - { - /* No alert on a read error. */ - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); - return( ret ); - } - } - - buf = ssl->in_hdr; - -#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO) -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_STREAM ) -#endif - if( ( buf[0] & 0x80 ) != 0 ) - return( ssl_parse_client_hello_v2( ssl ) ); -#endif - - MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, mbedtls_ssl_hdr_len( ssl ) ); - - /* - * SSLv3/TLS Client Hello - * - * Record layer: - * 0 . 0 message type - * 1 . 2 protocol version - * 3 . 11 DTLS: epoch + record sequence number - * 3 . 4 message length - */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message type: %d", - buf[0] ) ); - - if( buf[0] != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message len.: %d", - ( ssl->in_len[0] << 8 ) | ssl->in_len[1] ) ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, protocol version: [%d:%d]", - buf[1], buf[2] ) ); - - mbedtls_ssl_read_version( &major, &minor, ssl->conf->transport, buf + 1 ); - - /* According to RFC 5246 Appendix E.1, the version here is typically - * "{03,00}, the lowest version number supported by the client, [or] the - * value of ClientHello.client_version", so the only meaningful check here - * is the major version shouldn't be less than 3 */ - if( major < MBEDTLS_SSL_MAJOR_VERSION_3 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* For DTLS if this is the initial handshake, remember the client sequence - * number to use it in our next message (RFC 6347 4.2.1) */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM -#if defined(MBEDTLS_SSL_RENEGOTIATION) - && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE -#endif - ) - { - /* Epoch should be 0 for initial handshakes */ - if( ssl->in_ctr[0] != 0 || ssl->in_ctr[1] != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - memcpy( ssl->cur_out_ctr + 2, ssl->in_ctr + 2, 6 ); - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - if( mbedtls_ssl_dtls_replay_check( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record, discarding" ) ); - ssl->next_record_offset = 0; - ssl->in_left = 0; - goto read_record_header; - } - - /* No MAC to check yet, so we can update right now */ - mbedtls_ssl_dtls_replay_update( ssl ); -#endif - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - msg_len = ( ssl->in_len[0] << 8 ) | ssl->in_len[1]; - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) - { - /* Set by mbedtls_ssl_read_record() */ - msg_len = ssl->in_hslen; - } - else -#endif - { - if( msg_len > MBEDTLS_SSL_IN_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - if( ( ret = mbedtls_ssl_fetch_input( ssl, - mbedtls_ssl_hdr_len( ssl ) + msg_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); - return( ret ); - } - - /* Done reading this record, get ready for the next one */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - ssl->next_record_offset = msg_len + mbedtls_ssl_hdr_len( ssl ); - else -#endif - ssl->in_left = 0; - } - - buf = ssl->in_msg; - - MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, msg_len ); - - ssl->handshake->update_checksum( ssl, buf, msg_len ); - - /* - * Handshake layer: - * 0 . 0 handshake type - * 1 . 3 handshake length - * 4 . 5 DTLS only: message seqence number - * 6 . 8 DTLS only: fragment offset - * 9 . 11 DTLS only: fragment length - */ - if( msg_len < mbedtls_ssl_hs_hdr_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake type: %d", buf[0] ) ); - - if( buf[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake len.: %d", - ( buf[1] << 16 ) | ( buf[2] << 8 ) | buf[3] ) ); - - /* We don't support fragmentation of ClientHello (yet?) */ - if( buf[1] != 0 || - msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + ( ( buf[2] << 8 ) | buf[3] ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - /* - * Copy the client's handshake message_seq on initial handshakes, - * check sequence number on renego. - */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - /* This couldn't be done in ssl_prepare_handshake_record() */ - unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) | - ssl->in_msg[5]; - - if( cli_msg_seq != ssl->handshake->in_msg_seq ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message_seq: " - "%d (expected %d)", cli_msg_seq, - ssl->handshake->in_msg_seq ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ssl->handshake->in_msg_seq++; - } - else -#endif - { - unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) | - ssl->in_msg[5]; - ssl->handshake->out_msg_seq = cli_msg_seq; - ssl->handshake->in_msg_seq = cli_msg_seq + 1; - } - - /* - * For now we don't support fragmentation, so make sure - * fragment_offset == 0 and fragment_length == length - */ - if( ssl->in_msg[6] != 0 || ssl->in_msg[7] != 0 || ssl->in_msg[8] != 0 || - memcmp( ssl->in_msg + 1, ssl->in_msg + 9, 3 ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "ClientHello fragmentation not supported" ) ); - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); - } - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - buf += mbedtls_ssl_hs_hdr_len( ssl ); - msg_len -= mbedtls_ssl_hs_hdr_len( ssl ); - - /* - * ClientHello layer: - * 0 . 1 protocol version - * 2 . 33 random bytes (starting with 4 bytes of Unix time) - * 34 . 35 session id length (1 byte) - * 35 . 34+x session id - * 35+x . 35+x DTLS only: cookie length (1 byte) - * 36+x . .. DTLS only: cookie - * .. . .. ciphersuite list length (2 bytes) - * .. . .. ciphersuite list - * .. . .. compression alg. list length (1 byte) - * .. . .. compression alg. list - * .. . .. extensions length (2 bytes, optional) - * .. . .. extensions (optional) - */ - - /* - * Minimal length (with everything empty and extensions omitted) is - * 2 + 32 + 1 + 2 + 1 = 38 bytes. Check that first, so that we can - * read at least up to session id length without worrying. - */ - if( msg_len < 38 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* - * Check and save the protocol version - */ - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, version", buf, 2 ); - - mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver, - ssl->conf->transport, buf ); - - ssl->handshake->max_major_ver = ssl->major_ver; - ssl->handshake->max_minor_ver = ssl->minor_ver; - - if( ssl->major_ver < ssl->conf->min_major_ver || - ssl->minor_ver < ssl->conf->min_minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum" - " [%d:%d] < [%d:%d]", - ssl->major_ver, ssl->minor_ver, - ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); - return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); - } - - if( ssl->major_ver > ssl->conf->max_major_ver ) - { - ssl->major_ver = ssl->conf->max_major_ver; - ssl->minor_ver = ssl->conf->max_minor_ver; - } - else if( ssl->minor_ver > ssl->conf->max_minor_ver ) - ssl->minor_ver = ssl->conf->max_minor_ver; - - /* - * Save client random (inc. Unix time) - */ - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", buf + 2, 32 ); - - memcpy( ssl->handshake->randbytes, buf + 2, 32 ); - - /* - * Check the session ID length and save session ID - */ - sess_len = buf[34]; - - if( sess_len > sizeof( ssl->session_negotiate->id ) || - sess_len + 34 + 2 > msg_len ) /* 2 for cipherlist length field */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 35, sess_len ); - - ssl->session_negotiate->id_len = sess_len; - memset( ssl->session_negotiate->id, 0, - sizeof( ssl->session_negotiate->id ) ); - memcpy( ssl->session_negotiate->id, buf + 35, - ssl->session_negotiate->id_len ); - - /* - * Check the cookie length and content - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - cookie_offset = 35 + sess_len; - cookie_len = buf[cookie_offset]; - - if( cookie_offset + 1 + cookie_len + 2 > msg_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie", - buf + cookie_offset + 1, cookie_len ); - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) - if( ssl->conf->f_cookie_check != NULL -#if defined(MBEDTLS_SSL_RENEGOTIATION) - && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE -#endif - ) - { - if( ssl->conf->f_cookie_check( ssl->conf->p_cookie, - buf + cookie_offset + 1, cookie_len, - ssl->cli_id, ssl->cli_id_len ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification failed" ) ); - ssl->handshake->verify_cookie_len = 1; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification passed" ) ); - ssl->handshake->verify_cookie_len = 0; - } - } - else -#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ - { - /* We know we didn't send a cookie, so it should be empty */ - if( cookie_len != 0 ) - { - /* This may be an attacker's probe, so don't send an alert */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification skipped" ) ); - } - - /* - * Check the ciphersuitelist length (will be parsed later) - */ - ciph_offset = cookie_offset + 1 + cookie_len; - } - else -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - ciph_offset = 35 + sess_len; - - ciph_len = ( buf[ciph_offset + 0] << 8 ) - | ( buf[ciph_offset + 1] ); - - if( ciph_len < 2 || - ciph_len + 2 + ciph_offset + 1 > msg_len || /* 1 for comp. alg. len */ - ( ciph_len % 2 ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist", - buf + ciph_offset + 2, ciph_len ); - - /* - * Check the compression algorithms length and pick one - */ - comp_offset = ciph_offset + 2 + ciph_len; - - comp_len = buf[comp_offset]; - - if( comp_len < 1 || - comp_len > 16 || - comp_len + comp_offset + 1 > msg_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, compression", - buf + comp_offset + 1, comp_len ); - - ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL; -#if defined(MBEDTLS_ZLIB_SUPPORT) - for( i = 0; i < comp_len; ++i ) - { - if( buf[comp_offset + 1 + i] == MBEDTLS_SSL_COMPRESS_DEFLATE ) - { - ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_DEFLATE; - break; - } - } -#endif - - /* See comments in ssl_write_client_hello() */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL; -#endif - - /* Do not parse the extensions if the protocol is SSLv3 */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) ) - { -#endif - /* - * Check the extension length - */ - ext_offset = comp_offset + 1 + comp_len; - if( msg_len > ext_offset ) - { - if( msg_len < ext_offset + 2 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - ext_len = ( buf[ext_offset + 0] << 8 ) - | ( buf[ext_offset + 1] ); - - if( ( ext_len > 0 && ext_len < 4 ) || - msg_len != ext_offset + 2 + ext_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - } - else - ext_len = 0; - - ext = buf + ext_offset + 2; - MBEDTLS_SSL_DEBUG_BUF( 3, "client hello extensions", ext, ext_len ); - - while( ext_len != 0 ) - { - unsigned int ext_id; - unsigned int ext_size; - if ( ext_len < 4 ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - ext_id = ( ( ext[0] << 8 ) | ( ext[1] ) ); - ext_size = ( ( ext[2] << 8 ) | ( ext[3] ) ); - - if( ext_size + 4 > ext_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - switch( ext_id ) - { -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - case MBEDTLS_TLS_EXT_SERVERNAME: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ServerName extension" ) ); - if( ssl->conf->f_sni == NULL ) - break; - - ret = ssl_parse_servername_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ - - case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) ); -#if defined(MBEDTLS_SSL_RENEGOTIATION) - renegotiation_info_seen = 1; -#endif - - ret = ssl_parse_renegotiation_info( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - case MBEDTLS_TLS_EXT_SIG_ALG: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found signature_algorithms extension" ) ); - - ret = ssl_parse_signature_algorithms_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - - sig_hash_alg_ext_present = 1; - break; -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - case MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported elliptic curves extension" ) ); - - ret = ssl_parse_supported_elliptic_curves( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; - - case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported point formats extension" ) ); - ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT; - - ret = ssl_parse_supported_point_formats( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || - MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - case MBEDTLS_TLS_EXT_ECJPAKE_KKPP: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake kkpp extension" ) ); - - ret = ssl_parse_ecjpake_kkpp( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max fragment length extension" ) ); - - ret = ssl_parse_max_fragment_length_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - case MBEDTLS_TLS_EXT_TRUNCATED_HMAC: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated hmac extension" ) ); - - ret = ssl_parse_truncated_hmac_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt then mac extension" ) ); - - ret = ssl_parse_encrypt_then_mac_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended master secret extension" ) ); - - ret = ssl_parse_extended_ms_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - case MBEDTLS_TLS_EXT_SESSION_TICKET: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session ticket extension" ) ); - - ret = ssl_parse_session_ticket_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -#if defined(MBEDTLS_SSL_ALPN) - case MBEDTLS_TLS_EXT_ALPN: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) ); - - ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size ); - if( ret != 0 ) - return( ret ); - break; -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - - default: - MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)", - ext_id ) ); - } - - ext_len -= 4 + ext_size; - ext += 4 + ext_size; - - if( ext_len > 0 && ext_len < 4 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - } -#if defined(MBEDTLS_SSL_PROTO_SSL3) - } -#endif - -#if defined(MBEDTLS_SSL_FALLBACK_SCSV) - for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 ) - { - if( p[0] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) && - p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "received FALLBACK_SCSV" ) ); - - if( ssl->minor_ver < ssl->conf->max_minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) ); - - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK ); - - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - break; - } - } -#endif /* MBEDTLS_SSL_FALLBACK_SCSV */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - - /* - * Try to fall back to default hash SHA1 if the client - * hasn't provided any preferred signature-hash combinations. - */ - if( sig_hash_alg_ext_present == 0 ) - { - mbedtls_md_type_t md_default = MBEDTLS_MD_SHA1; - - if( mbedtls_ssl_check_sig_hash( ssl, md_default ) != 0 ) - md_default = MBEDTLS_MD_NONE; - - mbedtls_ssl_sig_hash_set_const_hash( &ssl->handshake->hash_algs, md_default ); - } - -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - - /* - * Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV - */ - for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 ) - { - if( p[0] == 0 && p[1] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) ); -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV " - "during renegotiation" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } -#endif - ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION; - break; - } - } - - /* - * Renegotiation security checks - */ - if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION && - ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) ); - handshake_failure = 1; - } -#if defined(MBEDTLS_SSL_RENEGOTIATION) - else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && - ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION && - renegotiation_info_seen == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) ); - handshake_failure = 1; - } - else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && - ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && - ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) ); - handshake_failure = 1; - } - else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && - ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && - renegotiation_info_seen == 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) ); - handshake_failure = 1; - } -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - - if( handshake_failure == 1 ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - /* - * Search for a matching ciphersuite - * (At the end because we need information from the EC-based extensions - * and certificate from the SNI callback triggered by the SNI extension.) - */ - got_common_suite = 0; - ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver]; - ciphersuite_info = NULL; -#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE) - for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 ) - for( i = 0; ciphersuites[i] != 0; i++ ) -#else - for( i = 0; ciphersuites[i] != 0; i++ ) - for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 ) -#endif - { - if( p[0] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) || - p[1] != ( ( ciphersuites[i] ) & 0xFF ) ) - continue; - - got_common_suite = 1; - - if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i], - &ciphersuite_info ) ) != 0 ) - return( ret ); - - if( ciphersuite_info != NULL ) - goto have_ciphersuite; - } - - if( got_common_suite ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, " - "but none of them usable" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ); - return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN ); - } - -have_ciphersuite: - MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) ); - - ssl->session_negotiate->ciphersuite = ciphersuites[i]; - ssl->transform_negotiate->ciphersuite_info = ciphersuite_info; - - ssl->state++; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_recv_flight_completed( ssl ); -#endif - - /* Debugging-only output for testsuite */ -#if defined(MBEDTLS_DEBUG_C) && \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - mbedtls_pk_type_t sig_alg = mbedtls_ssl_get_ciphersuite_sig_alg( ciphersuite_info ); - if( sig_alg != MBEDTLS_PK_NONE ) - { - mbedtls_md_type_t md_alg = mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs, - sig_alg ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: %d", - mbedtls_ssl_hash_from_md_alg( md_alg ) ) ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "no hash algorithm for signature algorithm " - "%d - should not happen", sig_alg ) ); - } - } -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) -static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - - if( ssl->session_negotiate->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding truncated hmac extension" ) ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF ); - - *p++ = 0x00; - *p++ = 0x00; - - *olen = 4; -} -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) -static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - const mbedtls_ssl_ciphersuite_t *suite = NULL; - const mbedtls_cipher_info_t *cipher = NULL; - - if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - *olen = 0; - return; - } - - /* - * RFC 7366: "If a server receives an encrypt-then-MAC request extension - * from a client and then selects a stream or Authenticated Encryption - * with Associated Data (AEAD) ciphersuite, it MUST NOT send an - * encrypt-then-MAC response extension back to the client." - */ - if( ( suite = mbedtls_ssl_ciphersuite_from_id( - ssl->session_negotiate->ciphersuite ) ) == NULL || - ( cipher = mbedtls_cipher_info_from_type( suite->cipher ) ) == NULL || - cipher->mode != MBEDTLS_MODE_CBC ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding encrypt then mac extension" ) ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC ) & 0xFF ); - - *p++ = 0x00; - *p++ = 0x00; - - *olen = 4; -} -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) -static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - - if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding extended master secret " - "extension" ) ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET ) & 0xFF ); - - *p++ = 0x00; - *p++ = 0x00; - - *olen = 4; -} -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - - if( ssl->handshake->new_session_ticket == 0 ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding session ticket extension" ) ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET ) & 0xFF ); - - *p++ = 0x00; - *p++ = 0x00; - - *olen = 4; -} -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - - if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, secure renegotiation extension" ) ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO ) & 0xFF ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) - { - *p++ = 0x00; - *p++ = ( ssl->verify_data_len * 2 + 1 ) & 0xFF; - *p++ = ssl->verify_data_len * 2 & 0xFF; - - memcpy( p, ssl->peer_verify_data, ssl->verify_data_len ); - p += ssl->verify_data_len; - memcpy( p, ssl->own_verify_data, ssl->verify_data_len ); - p += ssl->verify_data_len; - } - else -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - { - *p++ = 0x00; - *p++ = 0x01; - *p++ = 0x00; - } - - *olen = p - buf; -} - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - - if( ssl->session_negotiate->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, max_fragment_length extension" ) ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH ) & 0xFF ); - - *p++ = 0x00; - *p++ = 1; - - *p++ = ssl->session_negotiate->mfl_code; - - *olen = 5; -} -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - unsigned char *p = buf; - ((void) ssl); - - if( ( ssl->handshake->cli_exts & - MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT ) == 0 ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, supported_point_formats extension" ) ); - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS ) & 0xFF ); - - *p++ = 0x00; - *p++ = 2; - - *p++ = 1; - *p++ = MBEDTLS_ECP_PF_UNCOMPRESSED; - - *olen = 6; -} -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t *olen ) -{ - int ret; - unsigned char *p = buf; - const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - size_t kkpp_len; - - *olen = 0; - - /* Skip costly computation if not needed */ - if( ssl->transform_negotiate->ciphersuite_info->key_exchange != - MBEDTLS_KEY_EXCHANGE_ECJPAKE ) - return; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, ecjpake kkpp extension" ) ); - - if( end - p < 4 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) ); - return; - } - - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP ) & 0xFF ); - - ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx, - p + 2, end - p - 2, &kkpp_len, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret ); - return; - } - - *p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( kkpp_len ) & 0xFF ); - - *olen = kkpp_len + 4; -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_SSL_ALPN ) -static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl, - unsigned char *buf, size_t *olen ) -{ - if( ssl->alpn_chosen == NULL ) - { - *olen = 0; - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding alpn extension" ) ); - - /* - * 0 . 1 ext identifier - * 2 . 3 ext length - * 4 . 5 protocol list length - * 6 . 6 protocol name length - * 7 . 7+n protocol name - */ - buf[0] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF ); - buf[1] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN ) & 0xFF ); - - *olen = 7 + strlen( ssl->alpn_chosen ); - - buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF ); - buf[3] = (unsigned char)( ( ( *olen - 4 ) ) & 0xFF ); - - buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF ); - buf[5] = (unsigned char)( ( ( *olen - 6 ) ) & 0xFF ); - - buf[6] = (unsigned char)( ( ( *olen - 7 ) ) & 0xFF ); - - memcpy( buf + 7, ssl->alpn_chosen, *olen - 7 ); -} -#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */ - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) -static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl ) -{ - int ret; - unsigned char *p = ssl->out_msg + 4; - unsigned char *cookie_len_byte; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello verify request" ) ); - - /* - * struct { - * ProtocolVersion server_version; - * opaque cookie<0..2^8-1>; - * } HelloVerifyRequest; - */ - - /* The RFC is not clear on this point, but sending the actual negotiated - * version looks like the most interoperable thing to do. */ - mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, - ssl->conf->transport, p ); - MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 ); - p += 2; - - /* If we get here, f_cookie_check is not null */ - if( ssl->conf->f_cookie_write == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "inconsistent cookie callbacks" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* Skip length byte until we know the length */ - cookie_len_byte = p++; - - if( ( ret = ssl->conf->f_cookie_write( ssl->conf->p_cookie, - &p, ssl->out_buf + MBEDTLS_SSL_OUT_BUFFER_LEN, - ssl->cli_id, ssl->cli_id_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "f_cookie_write", ret ); - return( ret ); - } - - *cookie_len_byte = (unsigned char)( p - ( cookie_len_byte + 1 ) ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "cookie sent", cookie_len_byte + 1, *cookie_len_byte ); - - ssl->out_msglen = p - ssl->out_msg; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST; - - ssl->state = MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret ); - return( ret ); - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello verify request" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ - -static int ssl_write_server_hello( mbedtls_ssl_context *ssl ) -{ -#if defined(MBEDTLS_HAVE_TIME) - mbedtls_time_t t; -#endif - int ret; - size_t olen, ext_len = 0, n; - unsigned char *buf, *p; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello" ) ); - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake->verify_cookie_len != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "client hello was not authenticated" ) ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) ); - - return( ssl_write_hello_verify_request( ssl ) ); - } -#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ - - if( ssl->conf->f_rng == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") ); - return( MBEDTLS_ERR_SSL_NO_RNG ); - } - - /* - * 0 . 0 handshake type - * 1 . 3 handshake length - * 4 . 5 protocol version - * 6 . 9 UNIX time() - * 10 . 37 random bytes - */ - buf = ssl->out_msg; - p = buf + 4; - - mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, - ssl->conf->transport, p ); - p += 2; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen version: [%d:%d]", - buf[4], buf[5] ) ); - -#if defined(MBEDTLS_HAVE_TIME) - t = mbedtls_time( NULL ); - *p++ = (unsigned char)( t >> 24 ); - *p++ = (unsigned char)( t >> 16 ); - *p++ = (unsigned char)( t >> 8 ); - *p++ = (unsigned char)( t ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) ); -#else - if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 ) - return( ret ); - - p += 4; -#endif /* MBEDTLS_HAVE_TIME */ - - if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 ) - return( ret ); - - p += 28; - - memcpy( ssl->handshake->randbytes + 32, buf + 6, 32 ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 6, 32 ); - - /* - * Resume is 0 by default, see ssl_handshake_init(). - * It may be already set to 1 by ssl_parse_session_ticket_ext(). - * If not, try looking up session ID in our cache. - */ - if( ssl->handshake->resume == 0 && -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE && -#endif - ssl->session_negotiate->id_len != 0 && - ssl->conf->f_get_cache != NULL && - ssl->conf->f_get_cache( ssl->conf->p_cache, ssl->session_negotiate ) == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from cache" ) ); - ssl->handshake->resume = 1; - } - - if( ssl->handshake->resume == 0 ) - { - /* - * New session, create a new session id, - * unless we're about to issue a session ticket - */ - ssl->state++; - -#if defined(MBEDTLS_HAVE_TIME) - ssl->session_negotiate->start = mbedtls_time( NULL ); -#endif - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - if( ssl->handshake->new_session_ticket != 0 ) - { - ssl->session_negotiate->id_len = n = 0; - memset( ssl->session_negotiate->id, 0, 32 ); - } - else -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - { - ssl->session_negotiate->id_len = n = 32; - if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id, - n ) ) != 0 ) - return( ret ); - } - } - else - { - /* - * Resuming a session - */ - n = ssl->session_negotiate->id_len; - ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC; - - if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); - return( ret ); - } - } - - /* - * 38 . 38 session id length - * 39 . 38+n session id - * 39+n . 40+n chosen ciphersuite - * 41+n . 41+n chosen compression alg. - * 42+n . 43+n extensions length - * 44+n . 43+n+m extensions - */ - *p++ = (unsigned char) ssl->session_negotiate->id_len; - memcpy( p, ssl->session_negotiate->id, ssl->session_negotiate->id_len ); - p += ssl->session_negotiate->id_len; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, session id", buf + 39, n ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed", - ssl->handshake->resume ? "a" : "no" ) ); - - *p++ = (unsigned char)( ssl->session_negotiate->ciphersuite >> 8 ); - *p++ = (unsigned char)( ssl->session_negotiate->ciphersuite ); - *p++ = (unsigned char)( ssl->session_negotiate->compression ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s", - mbedtls_ssl_get_ciphersuite_name( ssl->session_negotiate->ciphersuite ) ) ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: 0x%02X", - ssl->session_negotiate->compression ) ); - - /* Do not write the extensions if the protocol is SSLv3 */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) ) - { -#endif - - /* - * First write extensions, then the total length - */ - ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if ( mbedtls_ssl_ciphersuite_uses_ec( - mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite ) ) ) - { - ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; - } -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - -#if defined(MBEDTLS_SSL_ALPN) - ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen ); - ext_len += olen; -#endif - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %d", ext_len ) ); - - if( ext_len > 0 ) - { - *p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( ext_len ) & 0xFF ); - p += ext_len; - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - } -#endif - - ssl->out_msglen = p - buf; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_HELLO; - - ret = mbedtls_ssl_write_handshake_msg( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) ); - - return( ret ); -} - -#if !defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED) -static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) ); - - if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) ); - ssl->state++; - return( 0 ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); -} -#else /* !MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ -static int ssl_write_certificate_request( mbedtls_ssl_context *ssl ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - size_t dn_size, total_dn_size; /* excluding length bytes */ - size_t ct_len, sa_len; /* including length bytes */ - unsigned char *buf, *p; - const unsigned char * const end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN; - const mbedtls_x509_crt *crt; - int authmode; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) ); - - ssl->state++; - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - if( ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET ) - authmode = ssl->handshake->sni_authmode; - else -#endif - authmode = ssl->conf->authmode; - - if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) || - authmode == MBEDTLS_SSL_VERIFY_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) ); - return( 0 ); - } - - /* - * 0 . 0 handshake type - * 1 . 3 handshake length - * 4 . 4 cert type count - * 5 .. m-1 cert types - * m .. m+1 sig alg length (TLS 1.2 only) - * m+1 .. n-1 SignatureAndHashAlgorithms (TLS 1.2 only) - * n .. n+1 length of all DNs - * n+2 .. n+3 length of DN 1 - * n+4 .. ... Distinguished Name #1 - * ... .. ... length of DN 2, etc. - */ - buf = ssl->out_msg; - p = buf + 4; - - /* - * Supported certificate types - * - * ClientCertificateType certificate_types<1..2^8-1>; - * enum { (255) } ClientCertificateType; - */ - ct_len = 0; - -#if defined(MBEDTLS_RSA_C) - p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_RSA_SIGN; -#endif -#if defined(MBEDTLS_ECDSA_C) - p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN; -#endif - - p[0] = (unsigned char) ct_len++; - p += ct_len; - - sa_len = 0; -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - /* - * Add signature_algorithms for verify (TLS 1.2) - * - * SignatureAndHashAlgorithm supported_signature_algorithms<2..2^16-2>; - * - * struct { - * HashAlgorithm hash; - * SignatureAlgorithm signature; - * } SignatureAndHashAlgorithm; - * - * enum { (255) } HashAlgorithm; - * enum { (255) } SignatureAlgorithm; - */ - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - const int *cur; - - /* - * Supported signature algorithms - */ - for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ ) - { - unsigned char hash = mbedtls_ssl_hash_from_md_alg( *cur ); - - if( MBEDTLS_SSL_HASH_NONE == hash || mbedtls_ssl_set_calc_verify_md( ssl, hash ) ) - continue; - -#if defined(MBEDTLS_RSA_C) - p[2 + sa_len++] = hash; - p[2 + sa_len++] = MBEDTLS_SSL_SIG_RSA; -#endif -#if defined(MBEDTLS_ECDSA_C) - p[2 + sa_len++] = hash; - p[2 + sa_len++] = MBEDTLS_SSL_SIG_ECDSA; -#endif - } - - p[0] = (unsigned char)( sa_len >> 8 ); - p[1] = (unsigned char)( sa_len ); - sa_len += 2; - p += sa_len; - } -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - - /* - * DistinguishedName certificate_authorities<0..2^16-1>; - * opaque DistinguishedName<1..2^16-1>; - */ - p += 2; - - total_dn_size = 0; - - if( ssl->conf->cert_req_ca_list == MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED ) - { - /* NOTE: If trusted certificates are provisioned - * via a CA callback (configured through - * `mbedtls_ssl_conf_ca_cb()`, then the - * CertificateRequest is currently left empty. */ - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - if( ssl->handshake->sni_ca_chain != NULL ) - crt = ssl->handshake->sni_ca_chain; - else -#endif - crt = ssl->conf->ca_chain; - - while( crt != NULL && crt->version != 0 ) - { - dn_size = crt->subject_raw.len; - - if( end < p || - (size_t)( end - p ) < dn_size || - (size_t)( end - p ) < 2 + dn_size ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "skipping CAs: buffer too short" ) ); - break; - } - - *p++ = (unsigned char)( dn_size >> 8 ); - *p++ = (unsigned char)( dn_size ); - memcpy( p, crt->subject_raw.p, dn_size ); - p += dn_size; - - MBEDTLS_SSL_DEBUG_BUF( 3, "requested DN", p - dn_size, dn_size ); - - total_dn_size += 2 + dn_size; - crt = crt->next; - } - } - - ssl->out_msglen = p - buf; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE_REQUEST; - ssl->out_msg[4 + ct_len + sa_len] = (unsigned char)( total_dn_size >> 8 ); - ssl->out_msg[5 + ct_len + sa_len] = (unsigned char)( total_dn_size ); - - ret = mbedtls_ssl_write_handshake_msg( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate request" ) ); - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) -static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl ) -{ - int ret; - - if( ! mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECKEY ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) ); - return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH ); - } - - if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, - mbedtls_pk_ec( *mbedtls_ssl_own_key( ssl ) ), - MBEDTLS_ECDH_OURS ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret ); - return( ret ); - } - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || - MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && \ - defined(MBEDTLS_SSL_ASYNC_PRIVATE) -static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl, - size_t *signature_len ) -{ - /* Append the signature to ssl->out_msg, leaving 2 bytes for the - * signature length which will be added in ssl_write_server_key_exchange - * after the call to ssl_prepare_server_key_exchange. - * ssl_write_server_key_exchange also takes care of incrementing - * ssl->out_msglen. */ - unsigned char *sig_start = ssl->out_msg + ssl->out_msglen + 2; - size_t sig_max_len = ( ssl->out_buf + MBEDTLS_SSL_OUT_CONTENT_LEN - - sig_start ); - int ret = ssl->conf->f_async_resume( ssl, - sig_start, signature_len, sig_max_len ); - if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS ) - { - ssl->handshake->async_in_progress = 0; - mbedtls_ssl_set_async_operation_data( ssl, NULL ); - } - MBEDTLS_SSL_DEBUG_RET( 2, "ssl_resume_server_key_exchange", ret ); - return( ret ); -} -#endif /* defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && - defined(MBEDTLS_SSL_ASYNC_PRIVATE) */ - -/* Prepare the ServerKeyExchange message, up to and including - * calculating the signature if any, but excluding formatting the - * signature and sending the message. */ -static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl, - size_t *signature_len ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; -#if defined(MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED) -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) - unsigned char *dig_signed = NULL; -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */ -#endif /* MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED */ - - (void) ciphersuite_info; /* unused in some configurations */ -#if !defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) - (void) signature_len; -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */ - - ssl->out_msglen = 4; /* header (type:1, length:3) to be written later */ - - /* - * - * Part 1: Provide key exchange parameters for chosen ciphersuite. - * - */ - - /* - * - ECJPAKE key exchanges - */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) - { - int ret; - size_t len = 0; - - ret = mbedtls_ecjpake_write_round_two( - &ssl->handshake->ecjpake_ctx, - ssl->out_msg + ssl->out_msglen, - MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen, &len, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret ); - return( ret ); - } - - ssl->out_msglen += len; - } -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - - /* - * For (EC)DHE key exchanges with PSK, parameters are prefixed by support - * identity hint (RFC 4279, Sec. 3). Until someone needs this feature, - * we use empty support identity hints here. - **/ -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) - { - ssl->out_msg[ssl->out_msglen++] = 0x00; - ssl->out_msg[ssl->out_msglen++] = 0x00; - } -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ - - /* - * - DHE key exchanges - */ -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED) - if( mbedtls_ssl_ciphersuite_uses_dhe( ciphersuite_info ) ) - { - int ret; - size_t len = 0; - - if( ssl->conf->dhm_P.p == NULL || ssl->conf->dhm_G.p == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "no DH parameters set" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - /* - * Ephemeral DH parameters: - * - * struct { - * opaque dh_p<1..2^16-1>; - * opaque dh_g<1..2^16-1>; - * opaque dh_Ys<1..2^16-1>; - * } ServerDHParams; - */ - if( ( ret = mbedtls_dhm_set_group( &ssl->handshake->dhm_ctx, - &ssl->conf->dhm_P, - &ssl->conf->dhm_G ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_set_group", ret ); - return( ret ); - } - - if( ( ret = mbedtls_dhm_make_params( - &ssl->handshake->dhm_ctx, - (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ), - ssl->out_msg + ssl->out_msglen, &len, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_params", ret ); - return( ret ); - } - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) - dig_signed = ssl->out_msg + ssl->out_msglen; -#endif - - ssl->out_msglen += len; - - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X ); - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P ); - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G ); - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX ); - } -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED */ - - /* - * - ECDHE key exchanges - */ -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED) - if( mbedtls_ssl_ciphersuite_uses_ecdhe( ciphersuite_info ) ) - { - /* - * Ephemeral ECDH parameters: - * - * struct { - * ECParameters curve_params; - * ECPoint public; - * } ServerECDHParams; - */ - const mbedtls_ecp_curve_info **curve = NULL; - const mbedtls_ecp_group_id *gid; - int ret; - size_t len = 0; - - /* Match our preference list against the offered curves */ - for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ ) - for( curve = ssl->handshake->curves; *curve != NULL; curve++ ) - if( (*curve)->grp_id == *gid ) - goto curve_matching_done; - -curve_matching_done: - if( curve == NULL || *curve == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "no matching curve for ECDHE" ) ); - return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDHE curve: %s", (*curve)->name ) ); - - if( ( ret = mbedtls_ecdh_setup( &ssl->handshake->ecdh_ctx, - (*curve)->grp_id ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecp_group_load", ret ); - return( ret ); - } - - if( ( ret = mbedtls_ecdh_make_params( - &ssl->handshake->ecdh_ctx, &len, - ssl->out_msg + ssl->out_msglen, - MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_params", ret ); - return( ret ); - } - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) - dig_signed = ssl->out_msg + ssl->out_msglen; -#endif - - ssl->out_msglen += len; - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_Q ); - } -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED */ - - /* - * - * Part 2: For key exchanges involving the server signing the - * exchange parameters, compute and add the signature here. - * - */ -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) - if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) ) - { - size_t dig_signed_len = ssl->out_msg + ssl->out_msglen - dig_signed; - size_t hashlen = 0; - unsigned char hash[MBEDTLS_MD_MAX_SIZE]; - int ret; - - /* - * 2.1: Choose hash algorithm: - * A: For TLS 1.2, obey signature-hash-algorithm extension - * to choose appropriate hash. - * B: For SSL3, TLS1.0, TLS1.1 and ECDHE_ECDSA, use SHA1 - * (RFC 4492, Sec. 5.4) - * C: Otherwise, use MD5 + SHA1 (RFC 4346, Sec. 7.4.3) - */ - - mbedtls_md_type_t md_alg; - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - mbedtls_pk_type_t sig_alg = - mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ); - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - /* A: For TLS 1.2, obey signature-hash-algorithm extension - * (RFC 5246, Sec. 7.4.1.4.1). */ - if( sig_alg == MBEDTLS_PK_NONE || - ( md_alg = mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs, - sig_alg ) ) == MBEDTLS_MD_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - /* (... because we choose a cipher suite - * only if there is a matching hash.) */ - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ) - { - /* B: Default hash SHA1 */ - md_alg = MBEDTLS_MD_SHA1; - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ - MBEDTLS_SSL_PROTO_TLS1_1 */ - { - /* C: MD5 + SHA1 */ - md_alg = MBEDTLS_MD_NONE; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "pick hash algorithm %d for signing", md_alg ) ); - - /* - * 2.2: Compute the hash to be signed - */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( md_alg == MBEDTLS_MD_NONE ) - { - hashlen = 36; - ret = mbedtls_ssl_get_key_exchange_md_ssl_tls( ssl, hash, - dig_signed, - dig_signed_len ); - if( ret != 0 ) - return( ret ); - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ - MBEDTLS_SSL_PROTO_TLS1_1 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( md_alg != MBEDTLS_MD_NONE ) - { - ret = mbedtls_ssl_get_key_exchange_md_tls1_2( ssl, hash, &hashlen, - dig_signed, - dig_signed_len, - md_alg ); - if( ret != 0 ) - return( ret ); - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ - MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen ); - - /* - * 2.3: Compute and add the signature - */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - /* - * For TLS 1.2, we need to specify signature and hash algorithm - * explicitly through a prefix to the signature. - * - * struct { - * HashAlgorithm hash; - * SignatureAlgorithm signature; - * } SignatureAndHashAlgorithm; - * - * struct { - * SignatureAndHashAlgorithm algorithm; - * opaque signature<0..2^16-1>; - * } DigitallySigned; - * - */ - - ssl->out_msg[ssl->out_msglen++] = - mbedtls_ssl_hash_from_md_alg( md_alg ); - ssl->out_msg[ssl->out_msglen++] = - mbedtls_ssl_sig_from_pk_alg( sig_alg ); - } -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - if( ssl->conf->f_async_sign_start != NULL ) - { - ret = ssl->conf->f_async_sign_start( ssl, - mbedtls_ssl_own_cert( ssl ), - md_alg, hash, hashlen ); - switch( ret ) - { - case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH: - /* act as if f_async_sign was null */ - break; - case 0: - ssl->handshake->async_in_progress = 1; - return( ssl_resume_server_key_exchange( ssl, signature_len ) ); - case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS: - ssl->handshake->async_in_progress = 1; - return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS ); - default: - MBEDTLS_SSL_DEBUG_RET( 1, "f_async_sign_start", ret ); - return( ret ); - } - } -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - - if( mbedtls_ssl_own_key( ssl ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key" ) ); - return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); - } - - /* Append the signature to ssl->out_msg, leaving 2 bytes for the - * signature length which will be added in ssl_write_server_key_exchange - * after the call to ssl_prepare_server_key_exchange. - * ssl_write_server_key_exchange also takes care of incrementing - * ssl->out_msglen. */ - if( ( ret = mbedtls_pk_sign( mbedtls_ssl_own_key( ssl ), - md_alg, hash, hashlen, - ssl->out_msg + ssl->out_msglen + 2, - signature_len, - ssl->conf->f_rng, - ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret ); - return( ret ); - } - } -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */ - - return( 0 ); -} - -/* Prepare the ServerKeyExchange message and send it. For ciphersuites - * that do not include a ServerKeyExchange message, do nothing. Either - * way, if successful, move on to the next step in the SSL state - * machine. */ -static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl ) -{ - int ret; - size_t signature_len = 0; -#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED) - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; -#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */ - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server key exchange" ) ); - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED) - /* Extract static ECDH parameters and abort if ServerKeyExchange - * is not needed. */ - if( mbedtls_ssl_ciphersuite_no_pfs( ciphersuite_info ) ) - { - /* For suites involving ECDH, extract DH parameters - * from certificate at this point. */ -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED) - if( mbedtls_ssl_ciphersuite_uses_ecdh( ciphersuite_info ) ) - { - ssl_get_ecdh_params_from_cert( ssl ); - } -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED */ - - /* Key exchanges not involving ephemeral keys don't use - * ServerKeyExchange, so end here. */ - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) ); - ssl->state++; - return( 0 ); - } -#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && \ - defined(MBEDTLS_SSL_ASYNC_PRIVATE) - /* If we have already prepared the message and there is an ongoing - * signature operation, resume signing. */ - if( ssl->handshake->async_in_progress != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming signature operation" ) ); - ret = ssl_resume_server_key_exchange( ssl, &signature_len ); - } - else -#endif /* defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && - defined(MBEDTLS_SSL_ASYNC_PRIVATE) */ - { - /* ServerKeyExchange is needed. Prepare the message. */ - ret = ssl_prepare_server_key_exchange( ssl, &signature_len ); - } - - if( ret != 0 ) - { - /* If we're starting to write a new message, set ssl->out_msglen - * to 0. But if we're resuming after an asynchronous message, - * out_msglen is the amount of data written so far and mst be - * preserved. */ - if( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS ) - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange (pending)" ) ); - else - ssl->out_msglen = 0; - return( ret ); - } - - /* If there is a signature, write its length. - * ssl_prepare_server_key_exchange already wrote the signature - * itself at its proper place in the output buffer. */ -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) - if( signature_len != 0 ) - { - ssl->out_msg[ssl->out_msglen++] = (unsigned char)( signature_len >> 8 ); - ssl->out_msg[ssl->out_msglen++] = (unsigned char)( signature_len ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "my signature", - ssl->out_msg + ssl->out_msglen, - signature_len ); - - /* Skip over the already-written signature */ - ssl->out_msglen += signature_len; - } -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */ - - /* Add header and send. */ - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE; - - ssl->state++; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange" ) ); - return( 0 ); -} - -static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello done" ) ); - - ssl->out_msglen = 4; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_HELLO_DONE; - - ssl->state++; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_send_flight_completed( ssl ); -#endif - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret ); - return( ret ); - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello done" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) -static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char **p, - const unsigned char *end ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - size_t n; - - /* - * Receive G^Y mod P, premaster = (G^Y)^X mod P - */ - if( *p + 2 > end ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - n = ( (*p)[0] << 8 ) | (*p)[1]; - *p += 2; - - if( *p + n > end ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - if( ( ret = mbedtls_dhm_read_public( &ssl->handshake->dhm_ctx, *p, n ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_read_public", ret ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP ); - } - - *p += n; - - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY ); - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) -static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl, - unsigned char *peer_pms, - size_t *peer_pmslen, - size_t peer_pmssize ) -{ - int ret = ssl->conf->f_async_resume( ssl, - peer_pms, peer_pmslen, peer_pmssize ); - if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS ) - { - ssl->handshake->async_in_progress = 0; - mbedtls_ssl_set_async_operation_data( ssl, NULL ); - } - MBEDTLS_SSL_DEBUG_RET( 2, "ssl_decrypt_encrypted_pms", ret ); - return( ret ); -} -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - -static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl, - const unsigned char *p, - const unsigned char *end, - unsigned char *peer_pms, - size_t *peer_pmslen, - size_t peer_pmssize ) -{ - int ret; - mbedtls_pk_context *private_key = mbedtls_ssl_own_key( ssl ); - mbedtls_pk_context *public_key = &mbedtls_ssl_own_cert( ssl )->pk; - size_t len = mbedtls_pk_get_len( public_key ); - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - /* If we have already started decoding the message and there is an ongoing - * decryption operation, resume signing. */ - if( ssl->handshake->async_in_progress != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming decryption operation" ) ); - return( ssl_resume_decrypt_pms( ssl, - peer_pms, peer_pmslen, peer_pmssize ) ); - } -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - - /* - * Prepare to decrypt the premaster using own private RSA key - */ -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 ) - { - if ( p + 2 > end ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - if( *p++ != ( ( len >> 8 ) & 0xFF ) || - *p++ != ( ( len ) & 0xFF ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - } -#endif - - if( p + len != end ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - /* - * Decrypt the premaster secret - */ -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - if( ssl->conf->f_async_decrypt_start != NULL ) - { - ret = ssl->conf->f_async_decrypt_start( ssl, - mbedtls_ssl_own_cert( ssl ), - p, len ); - switch( ret ) - { - case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH: - /* act as if f_async_decrypt_start was null */ - break; - case 0: - ssl->handshake->async_in_progress = 1; - return( ssl_resume_decrypt_pms( ssl, - peer_pms, - peer_pmslen, - peer_pmssize ) ); - case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS: - ssl->handshake->async_in_progress = 1; - return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS ); - default: - MBEDTLS_SSL_DEBUG_RET( 1, "f_async_decrypt_start", ret ); - return( ret ); - } - } -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - - if( ! mbedtls_pk_can_do( private_key, MBEDTLS_PK_RSA ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no RSA private key" ) ); - return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); - } - - ret = mbedtls_pk_decrypt( private_key, p, len, - peer_pms, peer_pmslen, peer_pmssize, - ssl->conf->f_rng, ssl->conf->p_rng ); - return( ret ); -} - -static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl, - const unsigned char *p, - const unsigned char *end, - size_t pms_offset ) -{ - int ret; - unsigned char *pms = ssl->handshake->premaster + pms_offset; - unsigned char ver[2]; - unsigned char fake_pms[48], peer_pms[48]; - unsigned char mask; - size_t i, peer_pmslen; - unsigned int diff; - - /* In case of a failure in decryption, the decryption may write less than - * 2 bytes of output, but we always read the first two bytes. It doesn't - * matter in the end because diff will be nonzero in that case due to - * peer_pmslen being less than 48, and we only care whether diff is 0. - * But do initialize peer_pms for robustness anyway. This also makes - * memory analyzers happy (don't access uninitialized memory, even - * if it's an unsigned char). */ - peer_pms[0] = peer_pms[1] = ~0; - - ret = ssl_decrypt_encrypted_pms( ssl, p, end, - peer_pms, - &peer_pmslen, - sizeof( peer_pms ) ); - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - if ( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS ) - return( ret ); -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - - mbedtls_ssl_write_version( ssl->handshake->max_major_ver, - ssl->handshake->max_minor_ver, - ssl->conf->transport, ver ); - - /* Avoid data-dependent branches while checking for invalid - * padding, to protect against timing-based Bleichenbacher-type - * attacks. */ - diff = (unsigned int) ret; - diff |= peer_pmslen ^ 48; - diff |= peer_pms[0] ^ ver[0]; - diff |= peer_pms[1] ^ ver[1]; - - /* mask = diff ? 0xff : 0x00 using bit operations to avoid branches */ - /* MSVC has a warning about unary minus on unsigned, but this is - * well-defined and precisely what we want to do here */ -#if defined(_MSC_VER) -#pragma warning( push ) -#pragma warning( disable : 4146 ) -#endif - mask = - ( ( diff | - diff ) >> ( sizeof( unsigned int ) * 8 - 1 ) ); -#if defined(_MSC_VER) -#pragma warning( pop ) -#endif - - /* - * Protection against Bleichenbacher's attack: invalid PKCS#1 v1.5 padding - * must not cause the connection to end immediately; instead, send a - * bad_record_mac later in the handshake. - * To protect against timing-based variants of the attack, we must - * not have any branch that depends on whether the decryption was - * successful. In particular, always generate the fake premaster secret, - * regardless of whether it will ultimately influence the output or not. - */ - ret = ssl->conf->f_rng( ssl->conf->p_rng, fake_pms, sizeof( fake_pms ) ); - if( ret != 0 ) - { - /* It's ok to abort on an RNG failure, since this does not reveal - * anything about the RSA decryption. */ - return( ret ); - } - -#if defined(MBEDTLS_SSL_DEBUG_ALL) - if( diff != 0 ) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); -#endif - - if( sizeof( ssl->handshake->premaster ) < pms_offset || - sizeof( ssl->handshake->premaster ) - pms_offset < 48 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - ssl->handshake->pmslen = 48; - - /* Set pms to either the true or the fake PMS, without - * data-dependent branches. */ - for( i = 0; i < ssl->handshake->pmslen; i++ ) - pms[i] = ( mask & fake_pms[i] ) | ( (~mask) & peer_pms[i] ); - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned char **p, - const unsigned char *end ) -{ - int ret = 0; - size_t n; - - if( ssl_conf_has_psk_or_cb( ssl->conf ) == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no pre-shared key" ) ); - return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ); - } - - /* - * Receive client pre-shared key identity name - */ - if( end - *p < 2 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - n = ( (*p)[0] << 8 ) | (*p)[1]; - *p += 2; - - if( n < 1 || n > 65535 || n > (size_t) ( end - *p ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - if( ssl->conf->f_psk != NULL ) - { - if( ssl->conf->f_psk( ssl->conf->p_psk, ssl, *p, n ) != 0 ) - ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY; - } - else - { - /* Identity is not a big secret since clients send it in the clear, - * but treat it carefully anyway, just in case */ - if( n != ssl->conf->psk_identity_len || - mbedtls_ssl_safer_memcmp( ssl->conf->psk_identity, *p, n ) != 0 ) - { - ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY; - } - } - - if( ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY ) - { - MBEDTLS_SSL_DEBUG_BUF( 3, "Unknown PSK identity", *p, n ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY ); - return( MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY ); - } - - *p += n; - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl ) -{ - int ret; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info; - unsigned char *p, *end; - - ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client key exchange" ) ); - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) && \ - ( defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) ) - if( ( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) && - ( ssl->handshake->async_in_progress != 0 ) ) - { - /* We've already read a record and there is an asynchronous - * operation in progress to decrypt it. So skip reading the - * record. */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "will resume decryption of previously-read record" ) ); - } - else -#endif - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ); - end = ssl->in_msg + ssl->in_hslen; - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA ) - { - if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret ); - return( ret ); - } - - if( p != end ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx, - ssl->handshake->premaster, - MBEDTLS_PREMASTER_SIZE, - &ssl->handshake->pmslen, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS ); - } - - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA || - ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA ) - { - if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx, - p, end - p) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP ); - } - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_QP ); - - if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, - &ssl->handshake->pmslen, - ssl->handshake->premaster, - MBEDTLS_MPI_MAX_SIZE, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS ); - } - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_Z ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED || - MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ) - { - if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); - return( ret ); - } - - if( p != end ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* For opaque PSKs, we perform the PSK-to-MS derivation atomatically - * and skip the intermediate PMS. */ - if( ssl_use_opaque_psk( ssl ) == 1 ) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "skip PMS generation for opaque PSK" ) ); - else -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, - ciphersuite_info->key_exchange ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - { -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - if ( ssl->handshake->async_in_progress != 0 ) - { - /* There is an asynchronous operation in progress to - * decrypt the encrypted premaster secret, so skip - * directly to resuming this operation. */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "PSK identity already parsed" ) ); - /* Update p to skip the PSK identity. ssl_parse_encrypted_pms - * won't actually use it, but maintain p anyway for robustness. */ - p += ssl->conf->psk_identity_len + 2; - } - else -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); - return( ret ); - } - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* Opaque PSKs are currently only supported for PSK-only. */ - if( ssl_use_opaque_psk( ssl ) == 1 ) - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -#endif - - if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_encrypted_pms" ), ret ); - return( ret ); - } - - if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, - ciphersuite_info->key_exchange ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) - { - if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); - return( ret ); - } - if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret ); - return( ret ); - } - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* Opaque PSKs are currently only supported for PSK-only. */ - if( ssl_use_opaque_psk( ssl ) == 1 ) - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -#endif - - if( p != end ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE ); - } - - if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, - ciphersuite_info->key_exchange ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) - { - if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret ); - return( ret ); - } - - if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx, - p, end - p ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret ); - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP ); - } - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* Opaque PSKs are currently only supported for PSK-only. */ - if( ssl_use_opaque_psk( ssl ) == 1 ) - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -#endif - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_QP ); - - if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl, - ciphersuite_info->key_exchange ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) - { - if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 0 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_parse_encrypted_pms_secret" ), ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ) - { - ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx, - p, end - p ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret ); - return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE ); - } - - ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx, - ssl->handshake->premaster, 32, &ssl->handshake->pmslen, - ssl->conf->f_rng, ssl->conf->p_rng ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret ); - return( ret ); - } - - ssl->state++; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client key exchange" ) ); - - return( 0 ); -} - -#if !defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED) -static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) ); - - if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) ); - ssl->state++; - return( 0 ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); -} -#else /* !MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ -static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - size_t i, sig_len; - unsigned char hash[48]; - unsigned char *hash_start = hash; - size_t hashlen; -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - mbedtls_pk_type_t pk_alg; -#endif - mbedtls_md_type_t md_alg; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - mbedtls_pk_context * peer_pk; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) ); - - if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) ); - ssl->state++; - return( 0 ); - } - -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - if( ssl->session_negotiate->peer_cert == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) ); - ssl->state++; - return( 0 ); - } -#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( ssl->session_negotiate->peer_cert_digest == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) ); - ssl->state++; - return( 0 ); - } -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - /* Read the message without adding it to the checksum */ - ret = mbedtls_ssl_read_record( ssl, 0 /* no checksum update */ ); - if( 0 != ret ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_read_record" ), ret ); - return( ret ); - } - - ssl->state++; - - /* Process the message contents */ - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE || - ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE_VERIFY ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); - } - - i = mbedtls_ssl_hs_hdr_len( ssl ); - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - peer_pk = &ssl->handshake->peer_pubkey; -#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( ssl->session_negotiate->peer_cert == NULL ) - { - /* Should never happen */ - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - peer_pk = &ssl->session_negotiate->peer_cert->pk; -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - /* - * struct { - * SignatureAndHashAlgorithm algorithm; -- TLS 1.2 only - * opaque signature<0..2^16-1>; - * } DigitallySigned; - */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) - { - md_alg = MBEDTLS_MD_NONE; - hashlen = 36; - - /* For ECDSA, use SHA-1, not MD-5 + SHA-1 */ - if( mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_ECDSA ) ) - { - hash_start += 16; - hashlen -= 16; - md_alg = MBEDTLS_MD_SHA1; - } - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || - MBEDTLS_SSL_PROTO_TLS1_1 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - if( i + 2 > ssl->in_hslen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); - } - - /* - * Hash - */ - md_alg = mbedtls_ssl_md_alg_from_hash( ssl->in_msg[i] ); - - if( md_alg == MBEDTLS_MD_NONE || mbedtls_ssl_set_calc_verify_md( ssl, ssl->in_msg[i] ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg" - " for verify message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); - } - -#if !defined(MBEDTLS_MD_SHA1) - if( MBEDTLS_MD_SHA1 == md_alg ) - hash_start += 16; -#endif - - /* Info from md_alg will be used instead */ - hashlen = 0; - - i++; - - /* - * Signature - */ - if( ( pk_alg = mbedtls_ssl_pk_alg_from_sig( ssl->in_msg[i] ) ) - == MBEDTLS_PK_NONE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg" - " for verify message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); - } - - /* - * Check the certificate's key type matches the signature alg - */ - if( !mbedtls_pk_can_do( peer_pk, pk_alg ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "sig_alg doesn't match cert key" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); - } - - i++; - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - if( i + 2 > ssl->in_hslen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); - } - - sig_len = ( ssl->in_msg[i] << 8 ) | ssl->in_msg[i+1]; - i += 2; - - if( i + sig_len != ssl->in_hslen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY ); - } - - /* Calculate hash and verify signature */ - ssl->handshake->calc_verify( ssl, hash ); - - if( ( ret = mbedtls_pk_verify( peer_pk, - md_alg, hash_start, hashlen, - ssl->in_msg + i, sig_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret ); - return( ret ); - } - - mbedtls_ssl_update_handshake_status( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate verify" ) ); - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -static int ssl_write_new_session_ticket( mbedtls_ssl_context *ssl ) -{ - int ret; - size_t tlen; - uint32_t lifetime; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write new session ticket" ) ); - - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_NEW_SESSION_TICKET; - - /* - * struct { - * uint32 ticket_lifetime_hint; - * opaque ticket<0..2^16-1>; - * } NewSessionTicket; - * - * 4 . 7 ticket_lifetime_hint (0 = unspecified) - * 8 . 9 ticket_len (n) - * 10 . 9+n ticket content - */ - - if( ( ret = ssl->conf->f_ticket_write( ssl->conf->p_ticket, - ssl->session_negotiate, - ssl->out_msg + 10, - ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN, - &tlen, &lifetime ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_write", ret ); - tlen = 0; - } - - ssl->out_msg[4] = ( lifetime >> 24 ) & 0xFF; - ssl->out_msg[5] = ( lifetime >> 16 ) & 0xFF; - ssl->out_msg[6] = ( lifetime >> 8 ) & 0xFF; - ssl->out_msg[7] = ( lifetime ) & 0xFF; - - ssl->out_msg[8] = (unsigned char)( ( tlen >> 8 ) & 0xFF ); - ssl->out_msg[9] = (unsigned char)( ( tlen ) & 0xFF ); - - ssl->out_msglen = 10 + tlen; - - /* - * Morally equivalent to updating ssl->state, but NewSessionTicket and - * ChangeCipherSpec share the same state. - */ - ssl->handshake->new_session_ticket = 0; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write new session ticket" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -/* - * SSL handshake -- server side -- single step - */ -int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl ) -{ - int ret = 0; - - if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "server state: %d", ssl->state ) ); - - if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - return( ret ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) - { - if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - return( ret ); - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - switch( ssl->state ) - { - case MBEDTLS_SSL_HELLO_REQUEST: - ssl->state = MBEDTLS_SSL_CLIENT_HELLO; - break; - - /* - * <== ClientHello - */ - case MBEDTLS_SSL_CLIENT_HELLO: - ret = ssl_parse_client_hello( ssl ); - break; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - case MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT: - return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ); -#endif - - /* - * ==> ServerHello - * Certificate - * ( ServerKeyExchange ) - * ( CertificateRequest ) - * ServerHelloDone - */ - case MBEDTLS_SSL_SERVER_HELLO: - ret = ssl_write_server_hello( ssl ); - break; - - case MBEDTLS_SSL_SERVER_CERTIFICATE: - ret = mbedtls_ssl_write_certificate( ssl ); - break; - - case MBEDTLS_SSL_SERVER_KEY_EXCHANGE: - ret = ssl_write_server_key_exchange( ssl ); - break; - - case MBEDTLS_SSL_CERTIFICATE_REQUEST: - ret = ssl_write_certificate_request( ssl ); - break; - - case MBEDTLS_SSL_SERVER_HELLO_DONE: - ret = ssl_write_server_hello_done( ssl ); - break; - - /* - * <== ( Certificate/Alert ) - * ClientKeyExchange - * ( CertificateVerify ) - * ChangeCipherSpec - * Finished - */ - case MBEDTLS_SSL_CLIENT_CERTIFICATE: - ret = mbedtls_ssl_parse_certificate( ssl ); - break; - - case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE: - ret = ssl_parse_client_key_exchange( ssl ); - break; - - case MBEDTLS_SSL_CERTIFICATE_VERIFY: - ret = ssl_parse_certificate_verify( ssl ); - break; - - case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC: - ret = mbedtls_ssl_parse_change_cipher_spec( ssl ); - break; - - case MBEDTLS_SSL_CLIENT_FINISHED: - ret = mbedtls_ssl_parse_finished( ssl ); - break; - - /* - * ==> ( NewSessionTicket ) - * ChangeCipherSpec - * Finished - */ - case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC: -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - if( ssl->handshake->new_session_ticket != 0 ) - ret = ssl_write_new_session_ticket( ssl ); - else -#endif - ret = mbedtls_ssl_write_change_cipher_spec( ssl ); - break; - - case MBEDTLS_SSL_SERVER_FINISHED: - ret = mbedtls_ssl_write_finished( ssl ); - break; - - case MBEDTLS_SSL_FLUSH_BUFFERS: - MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) ); - ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; - break; - - case MBEDTLS_SSL_HANDSHAKE_WRAPUP: - mbedtls_ssl_handshake_wrapup( ssl ); - break; - - default: - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - return( ret ); -} -#endif /* MBEDTLS_SSL_SRV_C */ diff --git a/library/ssl_ticket.c b/library/ssl_ticket.c deleted file mode 100644 index ed65bcd63..000000000 --- a/library/ssl_ticket.c +++ /dev/null @@ -1,595 +0,0 @@ -/* - * TLS server tickets callbacks implementation - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_SSL_TICKET_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include "mbedtls/ssl_ticket.h" -#include "mbedtls/platform_util.h" - -#include - -/* - * Initialze context - */ -void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx ) -{ - memset( ctx, 0, sizeof( mbedtls_ssl_ticket_context ) ); - -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_init( &ctx->mutex ); -#endif -} - -#define MAX_KEY_BYTES 32 /* 256 bits */ - -#define TICKET_KEY_NAME_BYTES 4 -#define TICKET_IV_BYTES 12 -#define TICKET_CRYPT_LEN_BYTES 2 -#define TICKET_AUTH_TAG_BYTES 16 - -#define TICKET_MIN_LEN ( TICKET_KEY_NAME_BYTES + \ - TICKET_IV_BYTES + \ - TICKET_CRYPT_LEN_BYTES + \ - TICKET_AUTH_TAG_BYTES ) -#define TICKET_ADD_DATA_LEN ( TICKET_KEY_NAME_BYTES + \ - TICKET_IV_BYTES + \ - TICKET_CRYPT_LEN_BYTES ) - -/* - * Generate/update a key - */ -static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx, - unsigned char index ) -{ - int ret; - unsigned char buf[MAX_KEY_BYTES]; - mbedtls_ssl_ticket_key *key = ctx->keys + index; - -#if defined(MBEDTLS_HAVE_TIME) - key->generation_time = (uint32_t) mbedtls_time( NULL ); -#endif - - if( ( ret = ctx->f_rng( ctx->p_rng, key->name, sizeof( key->name ) ) ) != 0 ) - return( ret ); - - if( ( ret = ctx->f_rng( ctx->p_rng, buf, sizeof( buf ) ) ) != 0 ) - return( ret ); - - /* With GCM and CCM, same context can encrypt & decrypt */ - ret = mbedtls_cipher_setkey( &key->ctx, buf, - mbedtls_cipher_get_key_bitlen( &key->ctx ), - MBEDTLS_ENCRYPT ); - - mbedtls_platform_zeroize( buf, sizeof( buf ) ); - - return( ret ); -} - -/* - * Rotate/generate keys if necessary - */ -static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx ) -{ -#if !defined(MBEDTLS_HAVE_TIME) - ((void) ctx); -#else - if( ctx->ticket_lifetime != 0 ) - { - uint32_t current_time = (uint32_t) mbedtls_time( NULL ); - uint32_t key_time = ctx->keys[ctx->active].generation_time; - - if( current_time >= key_time && - current_time - key_time < ctx->ticket_lifetime ) - { - return( 0 ); - } - - ctx->active = 1 - ctx->active; - - return( ssl_ticket_gen_key( ctx, ctx->active ) ); - } - else -#endif /* MBEDTLS_HAVE_TIME */ - return( 0 ); -} - -/* - * Setup context for actual use - */ -int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx, - int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, - mbedtls_cipher_type_t cipher, - uint32_t lifetime ) -{ - int ret; - const mbedtls_cipher_info_t *cipher_info; - - ctx->f_rng = f_rng; - ctx->p_rng = p_rng; - - ctx->ticket_lifetime = lifetime; - - cipher_info = mbedtls_cipher_info_from_type( cipher); - if( cipher_info == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( cipher_info->mode != MBEDTLS_MODE_GCM && - cipher_info->mode != MBEDTLS_MODE_CCM ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - ret = mbedtls_cipher_setup_psa( &ctx->keys[0].ctx, - cipher_info, TICKET_AUTH_TAG_BYTES ); - if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) - return( ret ); - /* We don't yet expect to support all ciphers through PSA, - * so allow fallback to ordinary mbedtls_cipher_setup(). */ - if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) ) != 0 ) - return( ret ); - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - ret = mbedtls_cipher_setup_psa( &ctx->keys[1].ctx, - cipher_info, TICKET_AUTH_TAG_BYTES ); - if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) - return( ret ); - if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) ) != 0 ) - return( ret ); - - if( ( ret = ssl_ticket_gen_key( ctx, 0 ) ) != 0 || - ( ret = ssl_ticket_gen_key( ctx, 1 ) ) != 0 ) - { - return( ret ); - } - - return( 0 ); -} - -/* - * Serialize a session in the following format: - * - * - If MBEDTLS_SSL_KEEP_PEER_CERTIFICATE is enabled: - * 0 . n-1 session structure, n = sizeof(mbedtls_ssl_session) - * n . n+2 peer_cert length = m (0 if no certificate) - * n+3 . n+2+m peer cert ASN.1 - * - * - If MBEDTLS_SSL_KEEP_PEER_CERTIFICATE is disabled: - * 0 . n-1 session structure, n = sizeof(mbedtls_ssl_session) - * n . n length of peer certificate digest = k (0 if no digest) - * n+1 . n+k peer certificate digest (digest type encoded in session) - */ -static int ssl_save_session( const mbedtls_ssl_session *session, - unsigned char *buf, size_t buf_len, - size_t *olen ) -{ - unsigned char *p = buf; - size_t left = buf_len; -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - size_t cert_len; -#else - size_t cert_digest_len; -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - - if( left < sizeof( mbedtls_ssl_session ) ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - - /* This also copies the values of pointer fields in the - * session to be serialized, but they'll be ignored when - * loading the session through ssl_load_session(). */ - memcpy( p, session, sizeof( mbedtls_ssl_session ) ); - p += sizeof( mbedtls_ssl_session ); - left -= sizeof( mbedtls_ssl_session ); - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - if( session->peer_cert == NULL ) - cert_len = 0; - else - cert_len = session->peer_cert->raw.len; - - if( left < 3 + cert_len ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - - *p++ = (unsigned char)( ( cert_len >> 16 ) & 0xFF ); - *p++ = (unsigned char)( ( cert_len >> 8 ) & 0xFF ); - *p++ = (unsigned char)( ( cert_len ) & 0xFF ); - left -= 3; - - if( session->peer_cert != NULL ) - memcpy( p, session->peer_cert->raw.p, cert_len ); - - p += cert_len; - left -= cert_len; -#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( session->peer_cert_digest != NULL ) - cert_digest_len = 0; - else - cert_digest_len = session->peer_cert_digest_len; - - if( left < 1 + cert_digest_len ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - - *p++ = (unsigned char) cert_digest_len; - left--; - - if( session->peer_cert_digest != NULL ) - memcpy( p, session->peer_cert_digest, cert_digest_len ); - - p += cert_digest_len; - left -= cert_digest_len; -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - - *olen = p - buf; - - return( 0 ); -} - -/* - * Unserialise session, see ssl_save_session() - */ -static int ssl_load_session( mbedtls_ssl_session *session, - const unsigned char *buf, size_t len ) -{ - const unsigned char *p = buf; - const unsigned char * const end = buf + len; -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - size_t cert_len; -#else - size_t cert_digest_len; -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - - if( sizeof( mbedtls_ssl_session ) > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - memcpy( session, p, sizeof( mbedtls_ssl_session ) ); - p += sizeof( mbedtls_ssl_session ); - - /* Non-NULL pointer fields of `session` are meaningless - * and potentially harmful. Zeroize them for safety. */ -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - session->peer_cert = NULL; -#else - session->peer_cert_digest = NULL; -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ -#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) - session->ticket = NULL; -#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - /* Deserialize CRT from the end of the ticket. */ - if( 3 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - cert_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2]; - p += 3; - - if( cert_len != 0 ) - { - int ret; - - if( cert_len > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - session->peer_cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ); - - if( session->peer_cert == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - mbedtls_x509_crt_init( session->peer_cert ); - - if( ( ret = mbedtls_x509_crt_parse_der( session->peer_cert, - p, cert_len ) ) != 0 ) - { - mbedtls_x509_crt_free( session->peer_cert ); - mbedtls_free( session->peer_cert ); - session->peer_cert = NULL; - return( ret ); - } - - p += cert_len; - } -#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - /* Deserialize CRT digest from the end of the ticket. */ - if( 1 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - cert_digest_len = (size_t) p[0]; - p++; - - if( cert_digest_len != 0 ) - { - if( cert_digest_len > (size_t)( end - p ) || - cert_digest_len != session->peer_cert_digest_len ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - session->peer_cert_digest = mbedtls_calloc( 1, cert_digest_len ); - if( session->peer_cert_digest == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - memcpy( session->peer_cert_digest, p, cert_digest_len ); - p += cert_digest_len; - } -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - - if( p != end ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - return( 0 ); -} - -/* - * Create session ticket, with the following structure: - * - * struct { - * opaque key_name[4]; - * opaque iv[12]; - * opaque encrypted_state<0..2^16-1>; - * opaque tag[16]; - * } ticket; - * - * The key_name, iv, and length of encrypted_state are the additional - * authenticated data. - */ - -int mbedtls_ssl_ticket_write( void *p_ticket, - const mbedtls_ssl_session *session, - unsigned char *start, - const unsigned char *end, - size_t *tlen, - uint32_t *ticket_lifetime ) -{ - int ret; - mbedtls_ssl_ticket_context *ctx = p_ticket; - mbedtls_ssl_ticket_key *key; - unsigned char *key_name = start; - unsigned char *iv = start + TICKET_KEY_NAME_BYTES; - unsigned char *state_len_bytes = iv + TICKET_IV_BYTES; - unsigned char *state = state_len_bytes + TICKET_CRYPT_LEN_BYTES; - unsigned char *tag; - size_t clear_len, ciph_len; - - *tlen = 0; - - if( ctx == NULL || ctx->f_rng == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - /* We need at least 4 bytes for key_name, 12 for IV, 2 for len 16 for tag, - * in addition to session itself, that will be checked when writing it. */ - if( end - start < TICKET_MIN_LEN ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - -#if defined(MBEDTLS_THREADING_C) - if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) - return( ret ); -#endif - - if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 ) - goto cleanup; - - key = &ctx->keys[ctx->active]; - - *ticket_lifetime = ctx->ticket_lifetime; - - memcpy( key_name, key->name, TICKET_KEY_NAME_BYTES ); - - if( ( ret = ctx->f_rng( ctx->p_rng, iv, TICKET_IV_BYTES ) ) != 0 ) - goto cleanup; - - /* Dump session state */ - if( ( ret = ssl_save_session( session, - state, end - state, &clear_len ) ) != 0 || - (unsigned long) clear_len > 65535 ) - { - goto cleanup; - } - state_len_bytes[0] = ( clear_len >> 8 ) & 0xff; - state_len_bytes[1] = ( clear_len ) & 0xff; - - /* Encrypt and authenticate */ - tag = state + clear_len; - if( ( ret = mbedtls_cipher_auth_encrypt( &key->ctx, - iv, TICKET_IV_BYTES, - /* Additional data: key name, IV and length */ - key_name, TICKET_ADD_DATA_LEN, - state, clear_len, state, &ciph_len, - tag, TICKET_AUTH_TAG_BYTES ) ) != 0 ) - { - goto cleanup; - } - if( ciph_len != clear_len ) - { - ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; - goto cleanup; - } - - *tlen = TICKET_MIN_LEN + ciph_len; - -cleanup: -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) - return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); -#endif - - return( ret ); -} - -/* - * Select key based on name - */ -static mbedtls_ssl_ticket_key *ssl_ticket_select_key( - mbedtls_ssl_ticket_context *ctx, - const unsigned char name[4] ) -{ - unsigned char i; - - for( i = 0; i < sizeof( ctx->keys ) / sizeof( *ctx->keys ); i++ ) - if( memcmp( name, ctx->keys[i].name, 4 ) == 0 ) - return( &ctx->keys[i] ); - - return( NULL ); -} - -/* - * Load session ticket (see mbedtls_ssl_ticket_write for structure) - */ -int mbedtls_ssl_ticket_parse( void *p_ticket, - mbedtls_ssl_session *session, - unsigned char *buf, - size_t len ) -{ - int ret; - mbedtls_ssl_ticket_context *ctx = p_ticket; - mbedtls_ssl_ticket_key *key; - unsigned char *key_name = buf; - unsigned char *iv = buf + TICKET_KEY_NAME_BYTES; - unsigned char *enc_len_p = iv + TICKET_IV_BYTES; - unsigned char *ticket = enc_len_p + TICKET_CRYPT_LEN_BYTES; - unsigned char *tag; - size_t enc_len, clear_len; - - if( ctx == NULL || ctx->f_rng == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( len < TICKET_MIN_LEN ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - -#if defined(MBEDTLS_THREADING_C) - if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) - return( ret ); -#endif - - if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 ) - goto cleanup; - - enc_len = ( enc_len_p[0] << 8 ) | enc_len_p[1]; - tag = ticket + enc_len; - - if( len != TICKET_MIN_LEN + enc_len ) - { - ret = MBEDTLS_ERR_SSL_BAD_INPUT_DATA; - goto cleanup; - } - - /* Select key */ - if( ( key = ssl_ticket_select_key( ctx, key_name ) ) == NULL ) - { - /* We can't know for sure but this is a likely option unless we're - * under attack - this is only informative anyway */ - ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED; - goto cleanup; - } - - /* Decrypt and authenticate */ - if( ( ret = mbedtls_cipher_auth_decrypt( &key->ctx, - iv, TICKET_IV_BYTES, - /* Additional data: key name, IV and length */ - key_name, TICKET_ADD_DATA_LEN, - ticket, enc_len, - ticket, &clear_len, - tag, TICKET_AUTH_TAG_BYTES ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED ) - ret = MBEDTLS_ERR_SSL_INVALID_MAC; - - goto cleanup; - } - if( clear_len != enc_len ) - { - ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; - goto cleanup; - } - - /* Actually load session */ - if( ( ret = ssl_load_session( session, ticket, clear_len ) ) != 0 ) - goto cleanup; - -#if defined(MBEDTLS_HAVE_TIME) - { - /* Check for expiration */ - mbedtls_time_t current_time = mbedtls_time( NULL ); - - if( current_time < session->start || - (uint32_t)( current_time - session->start ) > ctx->ticket_lifetime ) - { - ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED; - goto cleanup; - } - } -#endif - -cleanup: -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) - return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); -#endif - - return( ret ); -} - -/* - * Free context - */ -void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx ) -{ - mbedtls_cipher_free( &ctx->keys[0].ctx ); - mbedtls_cipher_free( &ctx->keys[1].ctx ); - -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_free( &ctx->mutex ); -#endif - - mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_ticket_context ) ); -} - -#endif /* MBEDTLS_SSL_TICKET_C */ diff --git a/library/ssl_tls.c b/library/ssl_tls.c deleted file mode 100644 index abe2450eb..000000000 --- a/library/ssl_tls.c +++ /dev/null @@ -1,10634 +0,0 @@ -/* - * SSLv3/TLSv1 shared functions - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * The SSL 3.0 specification was drafted by Netscape in 1996, - * and became an IETF standard in 1999. - * - * http://wp.netscape.com/eng/ssl3/ - * http://www.ietf.org/rfc/rfc2246.txt - * http://www.ietf.org/rfc/rfc4346.txt - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_SSL_TLS_C) - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif - -#include "mbedtls/debug.h" -#include "mbedtls/ssl.h" -#include "mbedtls/ssl_internal.h" -#include "mbedtls/platform_util.h" - -#include - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "mbedtls/psa_util.h" -#include "psa/crypto.h" -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -#include "mbedtls/oid.h" -#endif - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "mbedtls/psa_util.h" -#endif - -static void ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl ); -static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl ); - -/* Length of the "epoch" field in the record header */ -static inline size_t ssl_ep_len( const mbedtls_ssl_context *ssl ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - return( 2 ); -#else - ((void) ssl); -#endif - return( 0 ); -} - -/* - * Start a timer. - * Passing millisecs = 0 cancels a running timer. - */ -static void ssl_set_timer( mbedtls_ssl_context *ssl, uint32_t millisecs ) -{ - if( ssl->f_set_timer == NULL ) - return; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "set_timer to %d ms", (int) millisecs ) ); - ssl->f_set_timer( ssl->p_timer, millisecs / 4, millisecs ); -} - -/* - * Return -1 is timer is expired, 0 if it isn't. - */ -static int ssl_check_timer( mbedtls_ssl_context *ssl ) -{ - if( ssl->f_get_timer == NULL ) - return( 0 ); - - if( ssl->f_get_timer( ssl->p_timer ) == 2 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "timer expired" ) ); - return( -1 ); - } - - return( 0 ); -} - -static void ssl_update_out_pointers( mbedtls_ssl_context *ssl, - mbedtls_ssl_transform *transform ); -static void ssl_update_in_pointers( mbedtls_ssl_context *ssl, - mbedtls_ssl_transform *transform ); - -#define SSL_DONT_FORCE_FLUSH 0 -#define SSL_FORCE_FLUSH 1 - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - -/* Forward declarations for functions related to message buffering. */ -static void ssl_buffering_free( mbedtls_ssl_context *ssl ); -static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl, - uint8_t slot ); -static void ssl_free_buffered_record( mbedtls_ssl_context *ssl ); -static int ssl_load_buffered_message( mbedtls_ssl_context *ssl ); -static int ssl_load_buffered_record( mbedtls_ssl_context *ssl ); -static int ssl_buffer_message( mbedtls_ssl_context *ssl ); -static int ssl_buffer_future_record( mbedtls_ssl_context *ssl ); -static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl ); - -static size_t ssl_get_current_mtu( const mbedtls_ssl_context *ssl ); -static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl ) -{ - size_t mtu = ssl_get_current_mtu( ssl ); - - if( mtu != 0 && mtu < MBEDTLS_SSL_OUT_BUFFER_LEN ) - return( mtu ); - - return( MBEDTLS_SSL_OUT_BUFFER_LEN ); -} - -static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl ) -{ - size_t const bytes_written = ssl->out_left; - size_t const mtu = ssl_get_maximum_datagram_size( ssl ); - - /* Double-check that the write-index hasn't gone - * past what we can transmit in a single datagram. */ - if( bytes_written > mtu ) - { - /* Should never happen... */ - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - return( (int) ( mtu - bytes_written ) ); -} - -static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl ) -{ - int ret; - size_t remaining, expansion; - size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN; - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - const size_t mfl = mbedtls_ssl_get_max_frag_len( ssl ); - - if( max_len > mfl ) - max_len = mfl; - - /* By the standard (RFC 6066 Sect. 4), the MFL extension - * only limits the maximum record payload size, so in theory - * we would be allowed to pack multiple records of payload size - * MFL into a single datagram. However, this would mean that there's - * no way to explicitly communicate MTU restrictions to the peer. - * - * The following reduction of max_len makes sure that we never - * write datagrams larger than MFL + Record Expansion Overhead. - */ - if( max_len <= ssl->out_left ) - return( 0 ); - - max_len -= ssl->out_left; -#endif - - ret = ssl_get_remaining_space_in_datagram( ssl ); - if( ret < 0 ) - return( ret ); - remaining = (size_t) ret; - - ret = mbedtls_ssl_get_record_expansion( ssl ); - if( ret < 0 ) - return( ret ); - expansion = (size_t) ret; - - if( remaining <= expansion ) - return( 0 ); - - remaining -= expansion; - if( remaining >= max_len ) - remaining = max_len; - - return( (int) remaining ); -} - -/* - * Double the retransmit timeout value, within the allowed range, - * returning -1 if the maximum value has already been reached. - */ -static int ssl_double_retransmit_timeout( mbedtls_ssl_context *ssl ) -{ - uint32_t new_timeout; - - if( ssl->handshake->retransmit_timeout >= ssl->conf->hs_timeout_max ) - return( -1 ); - - /* Implement the final paragraph of RFC 6347 section 4.1.1.1 - * in the following way: after the initial transmission and a first - * retransmission, back off to a temporary estimated MTU of 508 bytes. - * This value is guaranteed to be deliverable (if not guaranteed to be - * delivered) of any compliant IPv4 (and IPv6) network, and should work - * on most non-IP stacks too. */ - if( ssl->handshake->retransmit_timeout != ssl->conf->hs_timeout_min ) - { - ssl->handshake->mtu = 508; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "mtu autoreduction to %d bytes", ssl->handshake->mtu ) ); - } - - new_timeout = 2 * ssl->handshake->retransmit_timeout; - - /* Avoid arithmetic overflow and range overflow */ - if( new_timeout < ssl->handshake->retransmit_timeout || - new_timeout > ssl->conf->hs_timeout_max ) - { - new_timeout = ssl->conf->hs_timeout_max; - } - - ssl->handshake->retransmit_timeout = new_timeout; - MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs", - ssl->handshake->retransmit_timeout ) ); - - return( 0 ); -} - -static void ssl_reset_retransmit_timeout( mbedtls_ssl_context *ssl ) -{ - ssl->handshake->retransmit_timeout = ssl->conf->hs_timeout_min; - MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs", - ssl->handshake->retransmit_timeout ) ); -} -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -/* - * Convert max_fragment_length codes to length. - * RFC 6066 says: - * enum{ - * 2^9(1), 2^10(2), 2^11(3), 2^12(4), (255) - * } MaxFragmentLength; - * and we add 0 -> extension unused - */ -static unsigned int ssl_mfl_code_to_length( int mfl ) -{ - switch( mfl ) - { - case MBEDTLS_SSL_MAX_FRAG_LEN_NONE: - return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ); - case MBEDTLS_SSL_MAX_FRAG_LEN_512: - return 512; - case MBEDTLS_SSL_MAX_FRAG_LEN_1024: - return 1024; - case MBEDTLS_SSL_MAX_FRAG_LEN_2048: - return 2048; - case MBEDTLS_SSL_MAX_FRAG_LEN_4096: - return 4096; - default: - return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ); - } -} -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst, - const mbedtls_ssl_session *src ) -{ - mbedtls_ssl_session_free( dst ); - memcpy( dst, src, sizeof( mbedtls_ssl_session ) ); - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - if( src->peer_cert != NULL ) - { - int ret; - - dst->peer_cert = mbedtls_calloc( 1, sizeof(mbedtls_x509_crt) ); - if( dst->peer_cert == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - mbedtls_x509_crt_init( dst->peer_cert ); - - if( ( ret = mbedtls_x509_crt_parse_der( dst->peer_cert, src->peer_cert->raw.p, - src->peer_cert->raw.len ) ) != 0 ) - { - mbedtls_free( dst->peer_cert ); - dst->peer_cert = NULL; - return( ret ); - } - } -#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( src->peer_cert_digest != NULL ) - { - dst->peer_cert_digest = - mbedtls_calloc( 1, src->peer_cert_digest_len ); - if( dst->peer_cert_digest == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - memcpy( dst->peer_cert_digest, src->peer_cert_digest, - src->peer_cert_digest_len ); - dst->peer_cert_digest_type = src->peer_cert_digest_type; - dst->peer_cert_digest_len = src->peer_cert_digest_len; - } -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) - if( src->ticket != NULL ) - { - dst->ticket = mbedtls_calloc( 1, src->ticket_len ); - if( dst->ticket == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - memcpy( dst->ticket, src->ticket, src->ticket_len ); - } -#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) -int (*mbedtls_ssl_hw_record_init)( mbedtls_ssl_context *ssl, - const unsigned char *key_enc, const unsigned char *key_dec, - size_t keylen, - const unsigned char *iv_enc, const unsigned char *iv_dec, - size_t ivlen, - const unsigned char *mac_enc, const unsigned char *mac_dec, - size_t maclen ) = NULL; -int (*mbedtls_ssl_hw_record_activate)( mbedtls_ssl_context *ssl, int direction) = NULL; -int (*mbedtls_ssl_hw_record_reset)( mbedtls_ssl_context *ssl ) = NULL; -int (*mbedtls_ssl_hw_record_write)( mbedtls_ssl_context *ssl ) = NULL; -int (*mbedtls_ssl_hw_record_read)( mbedtls_ssl_context *ssl ) = NULL; -int (*mbedtls_ssl_hw_record_finish)( mbedtls_ssl_context *ssl ) = NULL; -#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ - -/* - * Key material generation - */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) -static int ssl3_prf( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) -{ - int ret = 0; - size_t i; - mbedtls_md5_context md5; - mbedtls_sha1_context sha1; - unsigned char padding[16]; - unsigned char sha1sum[20]; - ((void)label); - - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); - - /* - * SSLv3: - * block = - * MD5( secret + SHA1( 'A' + secret + random ) ) + - * MD5( secret + SHA1( 'BB' + secret + random ) ) + - * MD5( secret + SHA1( 'CCC' + secret + random ) ) + - * ... - */ - for( i = 0; i < dlen / 16; i++ ) - { - memset( padding, (unsigned char) ('A' + i), 1 + i ); - - if( ( ret = mbedtls_sha1_starts_ret( &sha1 ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_sha1_update_ret( &sha1, padding, 1 + i ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_sha1_update_ret( &sha1, secret, slen ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_sha1_update_ret( &sha1, random, rlen ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_sha1_finish_ret( &sha1, sha1sum ) ) != 0 ) - goto exit; - - if( ( ret = mbedtls_md5_starts_ret( &md5 ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md5_update_ret( &md5, secret, slen ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md5_update_ret( &md5, sha1sum, 20 ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md5_finish_ret( &md5, dstbuf + i * 16 ) ) != 0 ) - goto exit; - } - -exit: - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); - - mbedtls_platform_zeroize( padding, sizeof( padding ) ); - mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) ); - - return( ret ); -} -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) -static int tls1_prf( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) -{ - size_t nb, hs; - size_t i, j, k; - const unsigned char *S1, *S2; - unsigned char tmp[128]; - unsigned char h_i[20]; - const mbedtls_md_info_t *md_info; - mbedtls_md_context_t md_ctx; - int ret; - - mbedtls_md_init( &md_ctx ); - - if( sizeof( tmp ) < 20 + strlen( label ) + rlen ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - hs = ( slen + 1 ) / 2; - S1 = secret; - S2 = secret + slen - hs; - - nb = strlen( label ); - memcpy( tmp + 20, label, nb ); - memcpy( tmp + 20 + nb, random, rlen ); - nb += rlen; - - /* - * First compute P_md5(secret,label+random)[0..dlen] - */ - if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ) ) == NULL ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - - if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) - return( ret ); - - mbedtls_md_hmac_starts( &md_ctx, S1, hs ); - mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb ); - mbedtls_md_hmac_finish( &md_ctx, 4 + tmp ); - - for( i = 0; i < dlen; i += 16 ) - { - mbedtls_md_hmac_reset ( &md_ctx ); - mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 + nb ); - mbedtls_md_hmac_finish( &md_ctx, h_i ); - - mbedtls_md_hmac_reset ( &md_ctx ); - mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 ); - mbedtls_md_hmac_finish( &md_ctx, 4 + tmp ); - - k = ( i + 16 > dlen ) ? dlen % 16 : 16; - - for( j = 0; j < k; j++ ) - dstbuf[i + j] = h_i[j]; - } - - mbedtls_md_free( &md_ctx ); - - /* - * XOR out with P_sha1(secret,label+random)[0..dlen] - */ - if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ) ) == NULL ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - - if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) - return( ret ); - - mbedtls_md_hmac_starts( &md_ctx, S2, hs ); - mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb ); - mbedtls_md_hmac_finish( &md_ctx, tmp ); - - for( i = 0; i < dlen; i += 20 ) - { - mbedtls_md_hmac_reset ( &md_ctx ); - mbedtls_md_hmac_update( &md_ctx, tmp, 20 + nb ); - mbedtls_md_hmac_finish( &md_ctx, h_i ); - - mbedtls_md_hmac_reset ( &md_ctx ); - mbedtls_md_hmac_update( &md_ctx, tmp, 20 ); - mbedtls_md_hmac_finish( &md_ctx, tmp ); - - k = ( i + 20 > dlen ) ? dlen % 20 : 20; - - for( j = 0; j < k; j++ ) - dstbuf[i + j] = (unsigned char)( dstbuf[i + j] ^ h_i[j] ); - } - - mbedtls_md_free( &md_ctx ); - - mbedtls_platform_zeroize( tmp, sizeof( tmp ) ); - mbedtls_platform_zeroize( h_i, sizeof( h_i ) ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_PROTO_TLS1) || MBEDTLS_SSL_PROTO_TLS1_1 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_USE_PSA_CRYPTO) -static int tls_prf_generic( mbedtls_md_type_t md_type, - const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) -{ - psa_status_t status; - psa_algorithm_t alg; - psa_key_policy_t policy; - psa_key_handle_t master_slot; - psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT; - - if( ( status = psa_allocate_key( &master_slot ) ) != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - if( md_type == MBEDTLS_MD_SHA384 ) - alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_384); - else - alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256); - - policy = psa_key_policy_init(); - psa_key_policy_set_usage( &policy, - PSA_KEY_USAGE_DERIVE, - alg ); - status = psa_set_key_policy( master_slot, &policy ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - status = psa_import_key( master_slot, PSA_KEY_TYPE_DERIVE, secret, slen ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - status = psa_key_derivation( &generator, - master_slot, alg, - random, rlen, - (unsigned char const *) label, - (size_t) strlen( label ), - dlen ); - if( status != PSA_SUCCESS ) - { - psa_generator_abort( &generator ); - psa_destroy_key( master_slot ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - status = psa_generator_read( &generator, dstbuf, dlen ); - if( status != PSA_SUCCESS ) - { - psa_generator_abort( &generator ); - psa_destroy_key( master_slot ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - status = psa_generator_abort( &generator ); - if( status != PSA_SUCCESS ) - { - psa_destroy_key( master_slot ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - status = psa_destroy_key( master_slot ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - - return( 0 ); -} - -#else /* MBEDTLS_USE_PSA_CRYPTO */ - -static int tls_prf_generic( mbedtls_md_type_t md_type, - const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) -{ - size_t nb; - size_t i, j, k, md_len; - unsigned char tmp[128]; - unsigned char h_i[MBEDTLS_MD_MAX_SIZE]; - const mbedtls_md_info_t *md_info; - mbedtls_md_context_t md_ctx; - int ret; - - mbedtls_md_init( &md_ctx ); - - if( ( md_info = mbedtls_md_info_from_type( md_type ) ) == NULL ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - - md_len = mbedtls_md_get_size( md_info ); - - if( sizeof( tmp ) < md_len + strlen( label ) + rlen ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - nb = strlen( label ); - memcpy( tmp + md_len, label, nb ); - memcpy( tmp + md_len + nb, random, rlen ); - nb += rlen; - - /* - * Compute P_(secret, label + random)[0..dlen] - */ - if ( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) - return( ret ); - - mbedtls_md_hmac_starts( &md_ctx, secret, slen ); - mbedtls_md_hmac_update( &md_ctx, tmp + md_len, nb ); - mbedtls_md_hmac_finish( &md_ctx, tmp ); - - for( i = 0; i < dlen; i += md_len ) - { - mbedtls_md_hmac_reset ( &md_ctx ); - mbedtls_md_hmac_update( &md_ctx, tmp, md_len + nb ); - mbedtls_md_hmac_finish( &md_ctx, h_i ); - - mbedtls_md_hmac_reset ( &md_ctx ); - mbedtls_md_hmac_update( &md_ctx, tmp, md_len ); - mbedtls_md_hmac_finish( &md_ctx, tmp ); - - k = ( i + md_len > dlen ) ? dlen % md_len : md_len; - - for( j = 0; j < k; j++ ) - dstbuf[i + j] = h_i[j]; - } - - mbedtls_md_free( &md_ctx ); - - mbedtls_platform_zeroize( tmp, sizeof( tmp ) ); - mbedtls_platform_zeroize( h_i, sizeof( h_i ) ); - - return( 0 ); -} -#endif /* MBEDTLS_USE_PSA_CRYPTO */ -#if defined(MBEDTLS_SHA256_C) -static int tls_prf_sha256( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) -{ - return( tls_prf_generic( MBEDTLS_MD_SHA256, secret, slen, - label, random, rlen, dstbuf, dlen ) ); -} -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) -static int tls_prf_sha384( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) -{ - return( tls_prf_generic( MBEDTLS_MD_SHA384, secret, slen, - label, random, rlen, dstbuf, dlen ) ); -} -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -static void ssl_update_checksum_start( mbedtls_ssl_context *, const unsigned char *, size_t ); - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) -static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *, const unsigned char *, size_t ); -#endif - -#if defined(MBEDTLS_SSL_PROTO_SSL3) -static void ssl_calc_verify_ssl( mbedtls_ssl_context *, unsigned char * ); -static void ssl_calc_finished_ssl( mbedtls_ssl_context *, unsigned char *, int ); -#endif - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) -static void ssl_calc_verify_tls( mbedtls_ssl_context *, unsigned char * ); -static void ssl_calc_finished_tls( mbedtls_ssl_context *, unsigned char *, int ); -#endif - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -static void ssl_update_checksum_sha256( mbedtls_ssl_context *, const unsigned char *, size_t ); -static void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *,unsigned char * ); -static void ssl_calc_finished_tls_sha256( mbedtls_ssl_context *,unsigned char *, int ); -#endif - -#if defined(MBEDTLS_SHA512_C) -static void ssl_update_checksum_sha384( mbedtls_ssl_context *, const unsigned char *, size_t ); -static void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *, unsigned char * ); -static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *, int ); -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) && \ - defined(MBEDTLS_USE_PSA_CRYPTO) -static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl ) -{ - if( ssl->conf->f_psk != NULL ) - { - /* If we've used a callback to select the PSK, - * the static configuration is irrelevant. */ - if( ssl->handshake->psk_opaque != 0 ) - return( 1 ); - - return( 0 ); - } - - if( ssl->conf->psk_opaque != 0 ) - return( 1 ); - - return( 0 ); -} -#endif /* MBEDTLS_USE_PSA_CRYPTO && - MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ) -{ - int ret = 0; -#if defined(MBEDTLS_USE_PSA_CRYPTO) - int psa_fallthrough; -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - unsigned char tmp[64]; - unsigned char keyblk[256]; - unsigned char *key1; - unsigned char *key2; - unsigned char *mac_enc; - unsigned char *mac_dec; - size_t mac_key_len; - size_t iv_copy_len; - size_t taglen = 0; - const mbedtls_cipher_info_t *cipher_info; - const mbedtls_md_info_t *md_info; - - /* cf. RFC 5246, Section 8.1: - * "The master secret is always exactly 48 bytes in length." */ - size_t const master_secret_len = 48; - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - unsigned char session_hash[48]; -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - - mbedtls_ssl_session *session = ssl->session_negotiate; - mbedtls_ssl_transform *transform = ssl->transform_negotiate; - mbedtls_ssl_handshake_params *handshake = ssl->handshake; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> derive keys" ) ); - - cipher_info = mbedtls_cipher_info_from_type( transform->ciphersuite_info->cipher ); - if( cipher_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %d not found", - transform->ciphersuite_info->cipher ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - md_info = mbedtls_md_info_from_type( transform->ciphersuite_info->mac ); - if( md_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %d not found", - transform->ciphersuite_info->mac ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - /* - * Set appropriate PRF function and other SSL / TLS / TLS1.2 functions - */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - handshake->tls_prf = ssl3_prf; - handshake->calc_verify = ssl_calc_verify_ssl; - handshake->calc_finished = ssl_calc_finished_ssl; - } - else -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) - { - handshake->tls_prf = tls1_prf; - handshake->calc_verify = ssl_calc_verify_tls; - handshake->calc_finished = ssl_calc_finished_tls; - } - else -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA512_C) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 && - transform->ciphersuite_info->mac == MBEDTLS_MD_SHA384 ) - { - handshake->tls_prf = tls_prf_sha384; - handshake->calc_verify = ssl_calc_verify_tls_sha384; - handshake->calc_finished = ssl_calc_finished_tls_sha384; - } - else -#endif -#if defined(MBEDTLS_SHA256_C) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - handshake->tls_prf = tls_prf_sha256; - handshake->calc_verify = ssl_calc_verify_tls_sha256; - handshake->calc_finished = ssl_calc_finished_tls_sha256; - } - else -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* - * SSLv3: - * master = - * MD5( premaster + SHA1( 'A' + premaster + randbytes ) ) + - * MD5( premaster + SHA1( 'BB' + premaster + randbytes ) ) + - * MD5( premaster + SHA1( 'CCC' + premaster + randbytes ) ) - * - * TLSv1+: - * master = PRF( premaster, "master secret", randbytes )[0..47] - */ - if( handshake->resume != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "no premaster (session resumed)" ) ); - } - else - { - /* The label for the KDF used for key expansion. - * This is either "master secret" or "extended master secret" - * depending on whether the Extended Master Secret extension - * is used. */ - char const *lbl = "master secret"; - - /* The salt for the KDF used for key expansion. - * - If the Extended Master Secret extension is not used, - * this is ClientHello.Random + ServerHello.Random - * (see Sect. 8.1 in RFC 5246). - * - If the Extended Master Secret extension is used, - * this is the transcript of the handshake so far. - * (see Sect. 4 in RFC 7627). */ - unsigned char const *salt = handshake->randbytes; - size_t salt_len = 64; - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - mbedtls_md_type_t const md_type = ciphersuite_info->mac; -#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */ - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "using extended master secret" ) ); - - lbl = "extended master secret"; - salt = session_hash; - ssl->handshake->calc_verify( ssl, session_hash ); -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { -#if defined(MBEDTLS_SHA512_C) - if( md_type == MBEDTLS_MD_SHA384 ) - salt_len = 48; - else -#endif /* MBEDTLS_SHA512_C */ - salt_len = 32; - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - salt_len = 36; - - MBEDTLS_SSL_DEBUG_BUF( 3, "session hash", session_hash, salt_len ); - } -#endif /* MBEDTLS_SSL_EXTENDED_MS_ENABLED */ - -#if defined(MBEDTLS_USE_PSA_CRYPTO) && \ - defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK && - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 && - ssl_use_opaque_psk( ssl ) == 1 ) - { - /* Perform PSK-to-MS expansion in a single step. */ - psa_status_t status; - psa_algorithm_t alg; - psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT; - psa_key_handle_t psk; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "perform PSA-based PSK-to-MS expansion" ) ); - - psk = ssl->conf->psk_opaque; - if( ssl->handshake->psk_opaque != 0 ) - psk = ssl->handshake->psk_opaque; - - if( md_type == MBEDTLS_MD_SHA384 ) - alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_384); - else - alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256); - - status = psa_key_derivation( &generator, psk, alg, - salt, salt_len, - (unsigned char const *) lbl, - (size_t) strlen( lbl ), - master_secret_len ); - if( status != PSA_SUCCESS ) - { - psa_generator_abort( &generator ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - status = psa_generator_read( &generator, session->master, - master_secret_len ); - if( status != PSA_SUCCESS ) - { - psa_generator_abort( &generator ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - status = psa_generator_abort( &generator ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - else -#endif - { - ret = handshake->tls_prf( handshake->premaster, handshake->pmslen, - lbl, salt, salt_len, - session->master, - master_secret_len ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_BUF( 3, "premaster secret", - handshake->premaster, - handshake->pmslen ); - - mbedtls_platform_zeroize( handshake->premaster, - sizeof(handshake->premaster) ); - } - } - - /* - * Swap the client and server random values. - */ - memcpy( tmp, handshake->randbytes, 64 ); - memcpy( handshake->randbytes, tmp + 32, 32 ); - memcpy( handshake->randbytes + 32, tmp, 32 ); - mbedtls_platform_zeroize( tmp, sizeof( tmp ) ); - - /* - * SSLv3: - * key block = - * MD5( master + SHA1( 'A' + master + randbytes ) ) + - * MD5( master + SHA1( 'BB' + master + randbytes ) ) + - * MD5( master + SHA1( 'CCC' + master + randbytes ) ) + - * MD5( master + SHA1( 'DDDD' + master + randbytes ) ) + - * ... - * - * TLSv1: - * key block = PRF( master, "key expansion", randbytes ) - */ - ret = handshake->tls_prf( session->master, 48, "key expansion", - handshake->randbytes, 64, keyblk, 256 ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite = %s", - mbedtls_ssl_get_ciphersuite_name( session->ciphersuite ) ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "master secret", session->master, 48 ); - MBEDTLS_SSL_DEBUG_BUF( 4, "random bytes", handshake->randbytes, 64 ); - MBEDTLS_SSL_DEBUG_BUF( 4, "key block", keyblk, 256 ); - - mbedtls_platform_zeroize( handshake->randbytes, - sizeof( handshake->randbytes ) ); - - /* - * Determine the appropriate key, IV and MAC length. - */ - - transform->keylen = cipher_info->key_bitlen / 8; - - if( cipher_info->mode == MBEDTLS_MODE_GCM || - cipher_info->mode == MBEDTLS_MODE_CCM || - cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY ) - { - size_t explicit_ivlen; - - transform->maclen = 0; - mac_key_len = 0; - - /* All modes haves 96-bit IVs; - * GCM and CCM has 4 implicit and 8 explicit bytes - * ChachaPoly has all 12 bytes implicit - */ - transform->ivlen = 12; - if( cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY ) - transform->fixed_ivlen = 12; - else - transform->fixed_ivlen = 4; - - /* All modes have 128-bit tags, except CCM_8 (ciphersuite flag) */ - taglen = transform->ciphersuite_info->flags & - MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16; - - - /* Minimum length of encrypted record */ - explicit_ivlen = transform->ivlen - transform->fixed_ivlen; - transform->minlen = explicit_ivlen + taglen; - } - else - { - /* Initialize HMAC contexts */ - if( ( ret = mbedtls_md_setup( &transform->md_ctx_enc, md_info, 1 ) ) != 0 || - ( ret = mbedtls_md_setup( &transform->md_ctx_dec, md_info, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret ); - return( ret ); - } - - /* Get MAC length */ - mac_key_len = mbedtls_md_get_size( md_info ); - transform->maclen = mac_key_len; - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - /* - * If HMAC is to be truncated, we shall keep the leftmost bytes, - * (rfc 6066 page 13 or rfc 2104 section 4), - * so we only need to adjust the length here. - */ - if( session->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED ) - { - transform->maclen = MBEDTLS_SSL_TRUNCATED_HMAC_LEN; - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT) - /* Fall back to old, non-compliant version of the truncated - * HMAC implementation which also truncates the key - * (Mbed TLS versions from 1.3 to 2.6.0) */ - mac_key_len = transform->maclen; -#endif - } -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - - /* IV length */ - transform->ivlen = cipher_info->iv_size; - - /* Minimum length */ - if( cipher_info->mode == MBEDTLS_MODE_STREAM ) - transform->minlen = transform->maclen; - else - { - /* - * GenericBlockCipher: - * 1. if EtM is in use: one block plus MAC - * otherwise: * first multiple of blocklen greater than maclen - * 2. IV except for SSL3 and TLS 1.0 - */ -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - if( session->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED ) - { - transform->minlen = transform->maclen - + cipher_info->block_size; - } - else -#endif - { - transform->minlen = transform->maclen - + cipher_info->block_size - - transform->maclen % cipher_info->block_size; - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_1 ) - ; /* No need to adjust minlen */ - else -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - transform->minlen += transform->ivlen; - } - else -#endif - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "keylen: %d, minlen: %d, ivlen: %d, maclen: %d", - transform->keylen, transform->minlen, transform->ivlen, - transform->maclen ) ); - - /* - * Finally setup the cipher contexts, IVs and MAC secrets. - */ -#if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - { - key1 = keyblk + mac_key_len * 2; - key2 = keyblk + mac_key_len * 2 + transform->keylen; - - mac_enc = keyblk; - mac_dec = keyblk + mac_key_len; - - /* - * This is not used in TLS v1.1. - */ - iv_copy_len = ( transform->fixed_ivlen ) ? - transform->fixed_ivlen : transform->ivlen; - memcpy( transform->iv_enc, key2 + transform->keylen, iv_copy_len ); - memcpy( transform->iv_dec, key2 + transform->keylen + iv_copy_len, - iv_copy_len ); - } - else -#endif /* MBEDTLS_SSL_CLI_C */ -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - { - key1 = keyblk + mac_key_len * 2 + transform->keylen; - key2 = keyblk + mac_key_len * 2; - - mac_enc = keyblk + mac_key_len; - mac_dec = keyblk; - - /* - * This is not used in TLS v1.1. - */ - iv_copy_len = ( transform->fixed_ivlen ) ? - transform->fixed_ivlen : transform->ivlen; - memcpy( transform->iv_dec, key1 + transform->keylen, iv_copy_len ); - memcpy( transform->iv_enc, key1 + transform->keylen + iv_copy_len, - iv_copy_len ); - } - else -#endif /* MBEDTLS_SSL_SRV_C */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - if( mac_key_len > sizeof transform->mac_enc ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - memcpy( transform->mac_enc, mac_enc, mac_key_len ); - memcpy( transform->mac_dec, mac_dec, mac_key_len ); - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 ) - { - /* For HMAC-based ciphersuites, initialize the HMAC transforms. - For AEAD-based ciphersuites, there is nothing to do here. */ - if( mac_key_len != 0 ) - { - mbedtls_md_hmac_starts( &transform->md_ctx_enc, mac_enc, mac_key_len ); - mbedtls_md_hmac_starts( &transform->md_ctx_dec, mac_dec, mac_key_len ); - } - } - else -#endif - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_init != NULL ) - { - int ret = 0; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_init()" ) ); - - if( ( ret = mbedtls_ssl_hw_record_init( ssl, key1, key2, transform->keylen, - transform->iv_enc, transform->iv_dec, - iv_copy_len, - mac_enc, mac_dec, - mac_key_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_init", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - } -#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ - -#if defined(MBEDTLS_SSL_EXPORT_KEYS) - if( ssl->conf->f_export_keys != NULL ) - { - ssl->conf->f_export_keys( ssl->conf->p_export_keys, - session->master, keyblk, - mac_key_len, transform->keylen, - iv_copy_len ); - } -#endif - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - - /* Only use PSA-based ciphers for TLS-1.2. - * That's relevant at least for TLS-1.0, where - * we assume that mbedtls_cipher_crypt() updates - * the structure field for the IV, which the PSA-based - * implementation currently doesn't. */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_enc, - cipher_info, taglen ); - if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret ); - return( ret ); - } - - if( ret == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based encryption cipher context" ) ); - psa_fallthrough = 0; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record encryption - fall through to default setup." ) ); - psa_fallthrough = 1; - } - } - else - psa_fallthrough = 1; -#else - psa_fallthrough = 1; -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - - if( psa_fallthrough == 1 ) -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc, - cipher_info ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret ); - return( ret ); - } - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - /* Only use PSA-based ciphers for TLS-1.2. - * That's relevant at least for TLS-1.0, where - * we assume that mbedtls_cipher_crypt() updates - * the structure field for the IV, which the PSA-based - * implementation currently doesn't. */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_dec, - cipher_info, taglen ); - if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret ); - return( ret ); - } - - if( ret == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based decryption cipher context" ) ); - psa_fallthrough = 0; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record decryption - fall through to default setup." ) ); - psa_fallthrough = 1; - } - } - else - psa_fallthrough = 1; -#else - psa_fallthrough = 1; -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - - if( psa_fallthrough == 1 ) -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec, - cipher_info ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret ); - return( ret ); - } - - if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_enc, key1, - cipher_info->key_bitlen, - MBEDTLS_ENCRYPT ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret ); - return( ret ); - } - - if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_dec, key2, - cipher_info->key_bitlen, - MBEDTLS_DECRYPT ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret ); - return( ret ); - } - -#if defined(MBEDTLS_CIPHER_MODE_CBC) - if( cipher_info->mode == MBEDTLS_MODE_CBC ) - { - if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_enc, - MBEDTLS_PADDING_NONE ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret ); - return( ret ); - } - - if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_dec, - MBEDTLS_PADDING_NONE ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret ); - return( ret ); - } - } -#endif /* MBEDTLS_CIPHER_MODE_CBC */ - - mbedtls_platform_zeroize( keyblk, sizeof( keyblk ) ); - -#if defined(MBEDTLS_ZLIB_SUPPORT) - // Initialize compression - // - if( session->compression == MBEDTLS_SSL_COMPRESS_DEFLATE ) - { - if( ssl->compress_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Allocating compression buffer" ) ); - ssl->compress_buf = mbedtls_calloc( 1, MBEDTLS_SSL_COMPRESS_BUFFER_LEN ); - if( ssl->compress_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", - MBEDTLS_SSL_COMPRESS_BUFFER_LEN ) ); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Initializing zlib states" ) ); - - memset( &transform->ctx_deflate, 0, sizeof( transform->ctx_deflate ) ); - memset( &transform->ctx_inflate, 0, sizeof( transform->ctx_inflate ) ); - - if( deflateInit( &transform->ctx_deflate, - Z_DEFAULT_COMPRESSION ) != Z_OK || - inflateInit( &transform->ctx_inflate ) != Z_OK ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to initialize compression" ) ); - return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED ); - } - } -#endif /* MBEDTLS_ZLIB_SUPPORT */ - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= derive keys" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_PROTO_SSL3) -void ssl_calc_verify_ssl( mbedtls_ssl_context *ssl, unsigned char hash[36] ) -{ - mbedtls_md5_context md5; - mbedtls_sha1_context sha1; - unsigned char pad_1[48]; - unsigned char pad_2[48]; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify ssl" ) ); - - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); - - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); - - memset( pad_1, 0x36, 48 ); - memset( pad_2, 0x5C, 48 ); - - mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 ); - mbedtls_md5_update_ret( &md5, pad_1, 48 ); - mbedtls_md5_finish_ret( &md5, hash ); - - mbedtls_md5_starts_ret( &md5 ); - mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 ); - mbedtls_md5_update_ret( &md5, pad_2, 48 ); - mbedtls_md5_update_ret( &md5, hash, 16 ); - mbedtls_md5_finish_ret( &md5, hash ); - - mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 ); - mbedtls_sha1_update_ret( &sha1, pad_1, 40 ); - mbedtls_sha1_finish_ret( &sha1, hash + 16 ); - - mbedtls_sha1_starts_ret( &sha1 ); - mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 ); - mbedtls_sha1_update_ret( &sha1, pad_2, 40 ); - mbedtls_sha1_update_ret( &sha1, hash + 16, 20 ); - mbedtls_sha1_finish_ret( &sha1, hash + 16 ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); - - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); - - return; -} -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) -void ssl_calc_verify_tls( mbedtls_ssl_context *ssl, unsigned char hash[36] ) -{ - mbedtls_md5_context md5; - mbedtls_sha1_context sha1; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify tls" ) ); - - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); - - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); - - mbedtls_md5_finish_ret( &md5, hash ); - mbedtls_sha1_finish_ret( &sha1, hash + 16 ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); - - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); - - return; -} -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *ssl, unsigned char hash[32] ) -{ -#if defined(MBEDTLS_USE_PSA_CRYPTO) - size_t hash_size; - psa_status_t status; - psa_hash_operation_t sha256_psa = psa_hash_operation_init(); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha256" ) ); - status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); - return; - } - - status = psa_hash_finish( &sha256_psa, hash, 32, &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); - return; - } - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, 32 ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) ); -#else - mbedtls_sha256_context sha256; - - mbedtls_sha256_init( &sha256 ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha256" ) ); - - mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 ); - mbedtls_sha256_finish_ret( &sha256, hash ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 32 ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); - - mbedtls_sha256_free( &sha256 ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - return; -} -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) -void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *ssl, unsigned char hash[48] ) -{ -#if defined(MBEDTLS_USE_PSA_CRYPTO) - size_t hash_size; - psa_status_t status; - psa_hash_operation_t sha384_psa = psa_hash_operation_init(); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha384" ) ); - status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); - return; - } - - status = psa_hash_finish( &sha384_psa, hash, 48, &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); - return; - } - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, 48 ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) ); -#else - mbedtls_sha512_context sha512; - - mbedtls_sha512_init( &sha512 ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha384" ) ); - - mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 ); - mbedtls_sha512_finish_ret( &sha512, hash ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 48 ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); - - mbedtls_sha512_free( &sha512 ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - return; -} -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) -int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex ) -{ - unsigned char *p = ssl->handshake->premaster; - unsigned char *end = p + sizeof( ssl->handshake->premaster ); - const unsigned char *psk = ssl->conf->psk; - size_t psk_len = ssl->conf->psk_len; - - /* If the psk callback was called, use its result */ - if( ssl->handshake->psk != NULL ) - { - psk = ssl->handshake->psk; - psk_len = ssl->handshake->psk_len; - } - - /* - * PMS = struct { - * opaque other_secret<0..2^16-1>; - * opaque psk<0..2^16-1>; - * }; - * with "other_secret" depending on the particular key exchange - */ -#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_PSK ) - { - if( end - p < 2 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - *(p++) = (unsigned char)( psk_len >> 8 ); - *(p++) = (unsigned char)( psk_len ); - - if( end < p || (size_t)( end - p ) < psk_len ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - memset( p, 0, psk_len ); - p += psk_len; - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - { - /* - * other_secret already set by the ClientKeyExchange message, - * and is 48 bytes long - */ - if( end - p < 2 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - *p++ = 0; - *p++ = 48; - p += 48; - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) - { - int ret; - size_t len; - - /* Write length only when we know the actual value */ - if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx, - p + 2, end - ( p + 2 ), &len, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret ); - return( ret ); - } - *(p++) = (unsigned char)( len >> 8 ); - *(p++) = (unsigned char)( len ); - p += len; - - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ -#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) - { - int ret; - size_t zlen; - - if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, &zlen, - p + 2, end - ( p + 2 ), - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret ); - return( ret ); - } - - *(p++) = (unsigned char)( zlen >> 8 ); - *(p++) = (unsigned char)( zlen ); - p += zlen; - - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_Z ); - } - else -#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* opaque psk<0..2^16-1>; */ - if( end - p < 2 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - *(p++) = (unsigned char)( psk_len >> 8 ); - *(p++) = (unsigned char)( psk_len ); - - if( end < p || (size_t)( end - p ) < psk_len ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - memcpy( p, psk, psk_len ); - p += psk_len; - - ssl->handshake->pmslen = p - ssl->handshake->premaster; - - return( 0 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#if defined(MBEDTLS_SSL_PROTO_SSL3) -/* - * SSLv3.0 MAC functions - */ -#define SSL_MAC_MAX_BYTES 20 /* MD-5 or SHA-1 */ -static void ssl_mac( mbedtls_md_context_t *md_ctx, - const unsigned char *secret, - const unsigned char *buf, size_t len, - const unsigned char *ctr, int type, - unsigned char out[SSL_MAC_MAX_BYTES] ) -{ - unsigned char header[11]; - unsigned char padding[48]; - int padlen; - int md_size = mbedtls_md_get_size( md_ctx->md_info ); - int md_type = mbedtls_md_get_type( md_ctx->md_info ); - - /* Only MD5 and SHA-1 supported */ - if( md_type == MBEDTLS_MD_MD5 ) - padlen = 48; - else - padlen = 40; - - memcpy( header, ctr, 8 ); - header[ 8] = (unsigned char) type; - header[ 9] = (unsigned char)( len >> 8 ); - header[10] = (unsigned char)( len ); - - memset( padding, 0x36, padlen ); - mbedtls_md_starts( md_ctx ); - mbedtls_md_update( md_ctx, secret, md_size ); - mbedtls_md_update( md_ctx, padding, padlen ); - mbedtls_md_update( md_ctx, header, 11 ); - mbedtls_md_update( md_ctx, buf, len ); - mbedtls_md_finish( md_ctx, out ); - - memset( padding, 0x5C, padlen ); - mbedtls_md_starts( md_ctx ); - mbedtls_md_update( md_ctx, secret, md_size ); - mbedtls_md_update( md_ctx, padding, padlen ); - mbedtls_md_update( md_ctx, out, md_size ); - mbedtls_md_finish( md_ctx, out ); -} -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - -#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) || \ - ( defined(MBEDTLS_CIPHER_MODE_CBC) && \ - ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C)) ) -#define SSL_SOME_MODES_USE_MAC -#endif - -/* The function below is only used in the Lucky 13 counter-measure in - * ssl_decrypt_buf(). These are the defines that guard the call site. */ -#if defined(SSL_SOME_MODES_USE_MAC) && \ - ( defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) ) -/* This function makes sure every byte in the memory region is accessed - * (in ascending addresses order) */ -static void ssl_read_memory( unsigned char *p, size_t len ) -{ - unsigned char acc = 0; - volatile unsigned char force; - - for( ; len != 0; p++, len-- ) - acc ^= *p; - - force = acc; - (void) force; -} -#endif /* SSL_SOME_MODES_USE_MAC && ( TLS1 || TLS1_1 || TLS1_2 ) */ - -/* - * Encryption/decryption functions - */ -static int ssl_encrypt_buf( mbedtls_ssl_context *ssl ) -{ - mbedtls_cipher_mode_t mode; - int auth_done = 0; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> encrypt buf" ) ); - - if( ssl->session_out == NULL || ssl->transform_out == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "before encrypt: output payload", - ssl->out_msg, ssl->out_msglen ); - - /* - * Add MAC before if needed - */ -#if defined(SSL_SOME_MODES_USE_MAC) - if( mode == MBEDTLS_MODE_STREAM || - ( mode == MBEDTLS_MODE_CBC -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - && ssl->session_out->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED -#endif - ) ) - { -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - unsigned char mac[SSL_MAC_MAX_BYTES]; - - ssl_mac( &ssl->transform_out->md_ctx_enc, - ssl->transform_out->mac_enc, - ssl->out_msg, ssl->out_msglen, - ssl->out_ctr, ssl->out_msgtype, - mac ); - - memcpy( ssl->out_msg + ssl->out_msglen, mac, ssl->transform_out->maclen ); - } - else -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 ) - { - unsigned char mac[MBEDTLS_SSL_MAC_ADD]; - - mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_ctr, 8 ); - mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_hdr, 3 ); - mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_len, 2 ); - mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, - ssl->out_msg, ssl->out_msglen ); - mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, mac ); - mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc ); - - memcpy( ssl->out_msg + ssl->out_msglen, mac, ssl->transform_out->maclen ); - } - else -#endif - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_BUF( 4, "computed mac", - ssl->out_msg + ssl->out_msglen, - ssl->transform_out->maclen ); - - ssl->out_msglen += ssl->transform_out->maclen; - auth_done++; - } -#endif /* AEAD not the only option */ - - /* - * Encrypt - */ -#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) - if( mode == MBEDTLS_MODE_STREAM ) - { - int ret; - size_t olen = 0; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, " - "including %d bytes of padding", - ssl->out_msglen, 0 ) ); - - if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc, - ssl->transform_out->iv_enc, - ssl->transform_out->ivlen, - ssl->out_msg, ssl->out_msglen, - ssl->out_msg, &olen ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); - return( ret ); - } - - if( ssl->out_msglen != olen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } - else -#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */ -#if defined(MBEDTLS_GCM_C) || \ - defined(MBEDTLS_CCM_C) || \ - defined(MBEDTLS_CHACHAPOLY_C) - if( mode == MBEDTLS_MODE_GCM || - mode == MBEDTLS_MODE_CCM || - mode == MBEDTLS_MODE_CHACHAPOLY ) - { - int ret; - size_t enc_msglen, olen; - unsigned char *enc_msg; - unsigned char add_data[13]; - unsigned char iv[12]; - mbedtls_ssl_transform *transform = ssl->transform_out; - unsigned char taglen = transform->ciphersuite_info->flags & - MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16; - size_t explicit_ivlen = transform->ivlen - transform->fixed_ivlen; - - /* - * Prepare additional authenticated data - */ - memcpy( add_data, ssl->out_ctr, 8 ); - add_data[8] = ssl->out_msgtype; - mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, - ssl->conf->transport, add_data + 9 ); - add_data[11] = ( ssl->out_msglen >> 8 ) & 0xFF; - add_data[12] = ssl->out_msglen & 0xFF; - - MBEDTLS_SSL_DEBUG_BUF( 4, "additional data for AEAD", add_data, 13 ); - - /* - * Generate IV - */ - if( transform->ivlen == 12 && transform->fixed_ivlen == 4 ) - { - /* GCM and CCM: fixed || explicit (=seqnum) */ - memcpy( iv, transform->iv_enc, transform->fixed_ivlen ); - memcpy( iv + transform->fixed_ivlen, ssl->out_ctr, 8 ); - memcpy( ssl->out_iv, ssl->out_ctr, 8 ); - - } - else if( transform->ivlen == 12 && transform->fixed_ivlen == 12 ) - { - /* ChachaPoly: fixed XOR sequence number */ - unsigned char i; - - memcpy( iv, transform->iv_enc, transform->fixed_ivlen ); - - for( i = 0; i < 8; i++ ) - iv[i+4] ^= ssl->out_ctr[i]; - } - else - { - /* Reminder if we ever add an AEAD mode with a different size */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (internal)", - iv, transform->ivlen ); - MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (transmitted)", - ssl->out_iv, explicit_ivlen ); - - /* - * Fix message length with added IV - */ - enc_msg = ssl->out_msg; - enc_msglen = ssl->out_msglen; - ssl->out_msglen += explicit_ivlen; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, " - "including 0 bytes of padding", - ssl->out_msglen ) ); - - /* - * Encrypt and authenticate - */ - if( ( ret = mbedtls_cipher_auth_encrypt( &transform->cipher_ctx_enc, - iv, transform->ivlen, - add_data, 13, - enc_msg, enc_msglen, - enc_msg, &olen, - enc_msg + enc_msglen, taglen ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_encrypt", ret ); - return( ret ); - } - - if( olen != enc_msglen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - ssl->out_msglen += taglen; - auth_done++; - - MBEDTLS_SSL_DEBUG_BUF( 4, "after encrypt: tag", enc_msg + enc_msglen, taglen ); - } - else -#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */ -#if defined(MBEDTLS_CIPHER_MODE_CBC) && \ - ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C) ) - if( mode == MBEDTLS_MODE_CBC ) - { - int ret; - unsigned char *enc_msg; - size_t enc_msglen, padlen, olen = 0, i; - - padlen = ssl->transform_out->ivlen - ( ssl->out_msglen + 1 ) % - ssl->transform_out->ivlen; - if( padlen == ssl->transform_out->ivlen ) - padlen = 0; - - for( i = 0; i <= padlen; i++ ) - ssl->out_msg[ssl->out_msglen + i] = (unsigned char) padlen; - - ssl->out_msglen += padlen + 1; - - enc_msglen = ssl->out_msglen; - enc_msg = ssl->out_msg; - -#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) - /* - * Prepend per-record IV for block cipher in TLS v1.1 and up as per - * Method 1 (6.2.3.2. in RFC4346 and RFC5246) - */ - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) - { - /* - * Generate IV - */ - ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->transform_out->iv_enc, - ssl->transform_out->ivlen ); - if( ret != 0 ) - return( ret ); - - memcpy( ssl->out_iv, ssl->transform_out->iv_enc, - ssl->transform_out->ivlen ); - - /* - * Fix pointer positions and message length with added IV - */ - enc_msg = ssl->out_msg; - enc_msglen = ssl->out_msglen; - ssl->out_msglen += ssl->transform_out->ivlen; - } -#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */ - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, " - "including %d bytes of IV and %d bytes of padding", - ssl->out_msglen, ssl->transform_out->ivlen, - padlen + 1 ) ); - - if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc, - ssl->transform_out->iv_enc, - ssl->transform_out->ivlen, - enc_msg, enc_msglen, - enc_msg, &olen ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); - return( ret ); - } - - if( enc_msglen != olen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) - if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 ) - { - /* - * Save IV in SSL3 and TLS1 - */ - memcpy( ssl->transform_out->iv_enc, - ssl->transform_out->cipher_ctx_enc.iv, - ssl->transform_out->ivlen ); - } -#endif - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - if( auth_done == 0 ) - { - unsigned char mac[MBEDTLS_SSL_MAC_ADD]; - - /* - * MAC(MAC_write_key, seq_num + - * TLSCipherText.type + - * TLSCipherText.version + - * length_of( (IV +) ENC(...) ) + - * IV + // except for TLS 1.0 - * ENC(content + padding + padding_length)); - */ - unsigned char pseudo_hdr[13]; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) ); - - memcpy( pseudo_hdr + 0, ssl->out_ctr, 8 ); - memcpy( pseudo_hdr + 8, ssl->out_hdr, 3 ); - pseudo_hdr[11] = (unsigned char)( ( ssl->out_msglen >> 8 ) & 0xFF ); - pseudo_hdr[12] = (unsigned char)( ( ssl->out_msglen ) & 0xFF ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 ); - - mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, pseudo_hdr, 13 ); - mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, - ssl->out_iv, ssl->out_msglen ); - mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, mac ); - mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc ); - - memcpy( ssl->out_iv + ssl->out_msglen, mac, - ssl->transform_out->maclen ); - - ssl->out_msglen += ssl->transform_out->maclen; - auth_done++; - } -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - } - else -#endif /* MBEDTLS_CIPHER_MODE_CBC && - ( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C || MBEDTLS_ARIA_C ) */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* Make extra sure authentication was performed, exactly once */ - if( auth_done != 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= encrypt buf" ) ); - - return( 0 ); -} - -static int ssl_decrypt_buf( mbedtls_ssl_context *ssl ) -{ - mbedtls_cipher_mode_t mode; - int auth_done = 0; -#if defined(SSL_SOME_MODES_USE_MAC) - size_t padlen = 0, correct = 1; -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decrypt buf" ) ); - - if( ssl->session_in == NULL || ssl->transform_in == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_in->cipher_ctx_dec ); - - if( ssl->in_msglen < ssl->transform_in->minlen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "in_msglen (%d) < minlen (%d)", - ssl->in_msglen, ssl->transform_in->minlen ) ); - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - } - -#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) - if( mode == MBEDTLS_MODE_STREAM ) - { - int ret; - size_t olen = 0; - - padlen = 0; - - if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec, - ssl->transform_in->iv_dec, - ssl->transform_in->ivlen, - ssl->in_msg, ssl->in_msglen, - ssl->in_msg, &olen ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); - return( ret ); - } - - if( ssl->in_msglen != olen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } - else -#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */ -#if defined(MBEDTLS_GCM_C) || \ - defined(MBEDTLS_CCM_C) || \ - defined(MBEDTLS_CHACHAPOLY_C) - if( mode == MBEDTLS_MODE_GCM || - mode == MBEDTLS_MODE_CCM || - mode == MBEDTLS_MODE_CHACHAPOLY ) - { - int ret; - size_t dec_msglen, olen; - unsigned char *dec_msg; - unsigned char *dec_msg_result; - unsigned char add_data[13]; - unsigned char iv[12]; - mbedtls_ssl_transform *transform = ssl->transform_in; - unsigned char taglen = transform->ciphersuite_info->flags & - MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16; - size_t explicit_iv_len = transform->ivlen - transform->fixed_ivlen; - - /* - * Compute and update sizes - */ - if( ssl->in_msglen < explicit_iv_len + taglen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < explicit_iv_len (%d) " - "+ taglen (%d)", ssl->in_msglen, - explicit_iv_len, taglen ) ); - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - } - dec_msglen = ssl->in_msglen - explicit_iv_len - taglen; - - dec_msg = ssl->in_msg; - dec_msg_result = ssl->in_msg; - ssl->in_msglen = dec_msglen; - - /* - * Prepare additional authenticated data - */ - memcpy( add_data, ssl->in_ctr, 8 ); - add_data[8] = ssl->in_msgtype; - mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, - ssl->conf->transport, add_data + 9 ); - add_data[11] = ( ssl->in_msglen >> 8 ) & 0xFF; - add_data[12] = ssl->in_msglen & 0xFF; - - MBEDTLS_SSL_DEBUG_BUF( 4, "additional data for AEAD", add_data, 13 ); - - /* - * Prepare IV - */ - if( transform->ivlen == 12 && transform->fixed_ivlen == 4 ) - { - /* GCM and CCM: fixed || explicit (transmitted) */ - memcpy( iv, transform->iv_dec, transform->fixed_ivlen ); - memcpy( iv + transform->fixed_ivlen, ssl->in_iv, 8 ); - - } - else if( transform->ivlen == 12 && transform->fixed_ivlen == 12 ) - { - /* ChachaPoly: fixed XOR sequence number */ - unsigned char i; - - memcpy( iv, transform->iv_dec, transform->fixed_ivlen ); - - for( i = 0; i < 8; i++ ) - iv[i+4] ^= ssl->in_ctr[i]; - } - else - { - /* Reminder if we ever add an AEAD mode with a different size */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_BUF( 4, "IV used", iv, transform->ivlen ); - MBEDTLS_SSL_DEBUG_BUF( 4, "TAG used", dec_msg + dec_msglen, taglen ); - - /* - * Decrypt and authenticate - */ - if( ( ret = mbedtls_cipher_auth_decrypt( &ssl->transform_in->cipher_ctx_dec, - iv, transform->ivlen, - add_data, 13, - dec_msg, dec_msglen, - dec_msg_result, &olen, - dec_msg + dec_msglen, taglen ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_decrypt", ret ); - - if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED ) - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - - return( ret ); - } - auth_done++; - - if( olen != dec_msglen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } - else -#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */ -#if defined(MBEDTLS_CIPHER_MODE_CBC) && \ - ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C) ) - if( mode == MBEDTLS_MODE_CBC ) - { - /* - * Decrypt and check the padding - */ - int ret; - unsigned char *dec_msg; - unsigned char *dec_msg_result; - size_t dec_msglen; - size_t minlen = 0; - size_t olen = 0; - - /* - * Check immediate ciphertext sanity - */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) - minlen += ssl->transform_in->ivlen; -#endif - - if( ssl->in_msglen < minlen + ssl->transform_in->ivlen || - ssl->in_msglen < minlen + ssl->transform_in->maclen + 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < max( ivlen(%d), maclen (%d) " - "+ 1 ) ( + expl IV )", ssl->in_msglen, - ssl->transform_in->ivlen, - ssl->transform_in->maclen ) ); - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - } - - dec_msglen = ssl->in_msglen; - dec_msg = ssl->in_msg; - dec_msg_result = ssl->in_msg; - - /* - * Authenticate before decrypt if enabled - */ -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - if( ssl->session_in->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED ) - { - unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD]; - unsigned char pseudo_hdr[13]; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) ); - - dec_msglen -= ssl->transform_in->maclen; - ssl->in_msglen -= ssl->transform_in->maclen; - - memcpy( pseudo_hdr + 0, ssl->in_ctr, 8 ); - memcpy( pseudo_hdr + 8, ssl->in_hdr, 3 ); - pseudo_hdr[11] = (unsigned char)( ( ssl->in_msglen >> 8 ) & 0xFF ); - pseudo_hdr[12] = (unsigned char)( ( ssl->in_msglen ) & 0xFF ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 ); - - mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, pseudo_hdr, 13 ); - mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, - ssl->in_iv, ssl->in_msglen ); - mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, mac_expect ); - mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "message mac", ssl->in_iv + ssl->in_msglen, - ssl->transform_in->maclen ); - MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect, - ssl->transform_in->maclen ); - - if( mbedtls_ssl_safer_memcmp( ssl->in_iv + ssl->in_msglen, mac_expect, - ssl->transform_in->maclen ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) ); - - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - } - auth_done++; - } -#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ - - /* - * Check length sanity - */ - if( ssl->in_msglen % ssl->transform_in->ivlen != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) %% ivlen (%d) != 0", - ssl->in_msglen, ssl->transform_in->ivlen ) ); - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - } - -#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) - /* - * Initialize for prepended IV for block cipher in TLS v1.1 and up - */ - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) - { - unsigned char i; - dec_msglen -= ssl->transform_in->ivlen; - ssl->in_msglen -= ssl->transform_in->ivlen; - - for( i = 0; i < ssl->transform_in->ivlen; i++ ) - ssl->transform_in->iv_dec[i] = ssl->in_iv[i]; - } -#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */ - - if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec, - ssl->transform_in->iv_dec, - ssl->transform_in->ivlen, - dec_msg, dec_msglen, - dec_msg_result, &olen ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret ); - return( ret ); - } - - if( dec_msglen != olen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) - if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 ) - { - /* - * Save IV in SSL3 and TLS1 - */ - memcpy( ssl->transform_in->iv_dec, - ssl->transform_in->cipher_ctx_dec.iv, - ssl->transform_in->ivlen ); - } -#endif - - padlen = 1 + ssl->in_msg[ssl->in_msglen - 1]; - - if( ssl->in_msglen < ssl->transform_in->maclen + padlen && - auth_done == 0 ) - { -#if defined(MBEDTLS_SSL_DEBUG_ALL) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < maclen (%d) + padlen (%d)", - ssl->in_msglen, ssl->transform_in->maclen, padlen ) ); -#endif - padlen = 0; - correct = 0; - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - if( padlen > ssl->transform_in->ivlen ) - { -#if defined(MBEDTLS_SSL_DEBUG_ALL) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding length: is %d, " - "should be no more than %d", - padlen, ssl->transform_in->ivlen ) ); -#endif - correct = 0; - } - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 ) - { - /* - * TLSv1+: always check the padding up to the first failure - * and fake check up to 256 bytes of padding - */ - size_t pad_count = 0, real_count = 1; - size_t padding_idx = ssl->in_msglen - padlen; - size_t i; - - /* - * Padding is guaranteed to be incorrect if: - * 1. padlen > ssl->in_msglen - * - * 2. padding_idx > MBEDTLS_SSL_IN_CONTENT_LEN + - * ssl->transform_in->maclen - * - * In both cases we reset padding_idx to a safe value (0) to - * prevent out-of-buffer reads. - */ - correct &= ( padlen <= ssl->in_msglen ); - correct &= ( padding_idx <= MBEDTLS_SSL_IN_CONTENT_LEN + - ssl->transform_in->maclen ); - - padding_idx *= correct; - - for( i = 0; i < 256; i++ ) - { - real_count &= ( i < padlen ); - pad_count += real_count * - ( ssl->in_msg[padding_idx + i] == padlen - 1 ); - } - - correct &= ( pad_count == padlen ); /* Only 1 on correct padding */ - -#if defined(MBEDTLS_SSL_DEBUG_ALL) - if( padlen > 0 && correct == 0 ) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding byte detected" ) ); -#endif - padlen &= correct * 0x1FF; - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ - MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - ssl->in_msglen -= padlen; - } - else -#endif /* MBEDTLS_CIPHER_MODE_CBC && - ( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C || MBEDTLS_ARIA_C ) */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL_DEBUG_ALL) - MBEDTLS_SSL_DEBUG_BUF( 4, "raw buffer after decryption", - ssl->in_msg, ssl->in_msglen ); -#endif - - /* - * Authenticate if not done yet. - * Compute the MAC regardless of the padding result (RFC4346, CBCTIME). - */ -#if defined(SSL_SOME_MODES_USE_MAC) - if( auth_done == 0 ) - { - unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD]; - - ssl->in_msglen -= ssl->transform_in->maclen; - - ssl->in_len[0] = (unsigned char)( ssl->in_msglen >> 8 ); - ssl->in_len[1] = (unsigned char)( ssl->in_msglen ); - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - ssl_mac( &ssl->transform_in->md_ctx_dec, - ssl->transform_in->mac_dec, - ssl->in_msg, ssl->in_msglen, - ssl->in_ctr, ssl->in_msgtype, - mac_expect ); - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 ) - { - /* - * Process MAC and always update for padlen afterwards to make - * total time independent of padlen. - * - * Known timing attacks: - * - Lucky Thirteen (http://www.isg.rhul.ac.uk/tls/TLStiming.pdf) - * - * To compensate for different timings for the MAC calculation - * depending on how much padding was removed (which is determined - * by padlen), process extra_run more blocks through the hash - * function. - * - * The formula in the paper is - * extra_run = ceil( (L1-55) / 64 ) - ceil( (L2-55) / 64 ) - * where L1 is the size of the header plus the decrypted message - * plus CBC padding and L2 is the size of the header plus the - * decrypted message. This is for an underlying hash function - * with 64-byte blocks. - * We use ( (Lx+8) / 64 ) to handle 'negative Lx' values - * correctly. We round down instead of up, so -56 is the correct - * value for our calculations instead of -55. - * - * Repeat the formula rather than defining a block_size variable. - * This avoids requiring division by a variable at runtime - * (which would be marginally less efficient and would require - * linking an extra division function in some builds). - */ - size_t j, extra_run = 0; - - /* - * The next two sizes are the minimum and maximum values of - * in_msglen over all padlen values. - * - * They're independent of padlen, since we previously did - * in_msglen -= padlen. - * - * Note that max_len + maclen is never more than the buffer - * length, as we previously did in_msglen -= maclen too. - */ - const size_t max_len = ssl->in_msglen + padlen; - const size_t min_len = ( max_len > 256 ) ? max_len - 256 : 0; - - switch( ssl->transform_in->ciphersuite_info->mac ) - { -#if defined(MBEDTLS_MD5_C) || defined(MBEDTLS_SHA1_C) || \ - defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_MD5: - case MBEDTLS_MD_SHA1: - case MBEDTLS_MD_SHA256: - /* 8 bytes of message size, 64-byte compression blocks */ - extra_run = ( 13 + ssl->in_msglen + padlen + 8 ) / 64 - - ( 13 + ssl->in_msglen + 8 ) / 64; - break; -#endif -#if defined(MBEDTLS_SHA512_C) - case MBEDTLS_MD_SHA384: - /* 16 bytes of message size, 128-byte compression blocks */ - extra_run = ( 13 + ssl->in_msglen + padlen + 16 ) / 128 - - ( 13 + ssl->in_msglen + 16 ) / 128; - break; -#endif - default: - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - extra_run &= correct * 0xFF; - - mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_ctr, 8 ); - mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_hdr, 3 ); - mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_len, 2 ); - mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_msg, - ssl->in_msglen ); - /* Make sure we access everything even when padlen > 0. This - * makes the synchronisation requirements for just-in-time - * Prime+Probe attacks much tighter and hopefully impractical. */ - ssl_read_memory( ssl->in_msg + ssl->in_msglen, padlen ); - mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, mac_expect ); - - /* Call mbedtls_md_process at least once due to cache attacks - * that observe whether md_process() was called of not */ - for( j = 0; j < extra_run + 1; j++ ) - mbedtls_md_process( &ssl->transform_in->md_ctx_dec, ssl->in_msg ); - - mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec ); - - /* Make sure we access all the memory that could contain the MAC, - * before we check it in the next code block. This makes the - * synchronisation requirements for just-in-time Prime+Probe - * attacks much tighter and hopefully impractical. */ - ssl_read_memory( ssl->in_msg + min_len, - max_len - min_len + ssl->transform_in->maclen ); - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ - MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL_DEBUG_ALL) - MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect, ssl->transform_in->maclen ); - MBEDTLS_SSL_DEBUG_BUF( 4, "message mac", ssl->in_msg + ssl->in_msglen, - ssl->transform_in->maclen ); -#endif - - if( mbedtls_ssl_safer_memcmp( ssl->in_msg + ssl->in_msglen, mac_expect, - ssl->transform_in->maclen ) != 0 ) - { -#if defined(MBEDTLS_SSL_DEBUG_ALL) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) ); -#endif - correct = 0; - } - auth_done++; - } - - /* - * Finally check the correct flag - */ - if( correct == 0 ) - return( MBEDTLS_ERR_SSL_INVALID_MAC ); -#endif /* SSL_SOME_MODES_USE_MAC */ - - /* Make extra sure authentication was performed, exactly once */ - if( auth_done != 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - if( ssl->in_msglen == 0 ) - { -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 - && ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA ) - { - /* TLS v1.2 explicitly disallows zero-length messages which are not application data */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid zero-length message type: %d", ssl->in_msgtype ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - - ssl->nb_zero++; - - /* - * Three or more empty messages may be a DoS attack - * (excessive CPU consumption). - */ - if( ssl->nb_zero > 3 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "received four consecutive empty " - "messages, possible DoS attack" ) ); - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - } - } - else - ssl->nb_zero = 0; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ; /* in_ctr read from peer, not maintained internally */ - } - else -#endif - { - unsigned char i; - for( i = 8; i > ssl_ep_len( ssl ); i-- ) - if( ++ssl->in_ctr[i - 1] != 0 ) - break; - - /* The loop goes to its end iff the counter is wrapping */ - if( i == ssl_ep_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "incoming message counter would wrap" ) ); - return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); - } - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decrypt buf" ) ); - - return( 0 ); -} - -#undef MAC_NONE -#undef MAC_PLAINTEXT -#undef MAC_CIPHERTEXT - -#if defined(MBEDTLS_ZLIB_SUPPORT) -/* - * Compression/decompression functions - */ -static int ssl_compress_buf( mbedtls_ssl_context *ssl ) -{ - int ret; - unsigned char *msg_post = ssl->out_msg; - ptrdiff_t bytes_written = ssl->out_msg - ssl->out_buf; - size_t len_pre = ssl->out_msglen; - unsigned char *msg_pre = ssl->compress_buf; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> compress buf" ) ); - - if( len_pre == 0 ) - return( 0 ); - - memcpy( msg_pre, ssl->out_msg, len_pre ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "before compression: msglen = %d, ", - ssl->out_msglen ) ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "before compression: output payload", - ssl->out_msg, ssl->out_msglen ); - - ssl->transform_out->ctx_deflate.next_in = msg_pre; - ssl->transform_out->ctx_deflate.avail_in = len_pre; - ssl->transform_out->ctx_deflate.next_out = msg_post; - ssl->transform_out->ctx_deflate.avail_out = MBEDTLS_SSL_OUT_BUFFER_LEN - bytes_written; - - ret = deflate( &ssl->transform_out->ctx_deflate, Z_SYNC_FLUSH ); - if( ret != Z_OK ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform compression (%d)", ret ) ); - return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED ); - } - - ssl->out_msglen = MBEDTLS_SSL_OUT_BUFFER_LEN - - ssl->transform_out->ctx_deflate.avail_out - bytes_written; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "after compression: msglen = %d, ", - ssl->out_msglen ) ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "after compression: output payload", - ssl->out_msg, ssl->out_msglen ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= compress buf" ) ); - - return( 0 ); -} - -static int ssl_decompress_buf( mbedtls_ssl_context *ssl ) -{ - int ret; - unsigned char *msg_post = ssl->in_msg; - ptrdiff_t header_bytes = ssl->in_msg - ssl->in_buf; - size_t len_pre = ssl->in_msglen; - unsigned char *msg_pre = ssl->compress_buf; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decompress buf" ) ); - - if( len_pre == 0 ) - return( 0 ); - - memcpy( msg_pre, ssl->in_msg, len_pre ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "before decompression: msglen = %d, ", - ssl->in_msglen ) ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "before decompression: input payload", - ssl->in_msg, ssl->in_msglen ); - - ssl->transform_in->ctx_inflate.next_in = msg_pre; - ssl->transform_in->ctx_inflate.avail_in = len_pre; - ssl->transform_in->ctx_inflate.next_out = msg_post; - ssl->transform_in->ctx_inflate.avail_out = MBEDTLS_SSL_IN_BUFFER_LEN - - header_bytes; - - ret = inflate( &ssl->transform_in->ctx_inflate, Z_SYNC_FLUSH ); - if( ret != Z_OK ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform decompression (%d)", ret ) ); - return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED ); - } - - ssl->in_msglen = MBEDTLS_SSL_IN_BUFFER_LEN - - ssl->transform_in->ctx_inflate.avail_out - header_bytes; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "after decompression: msglen = %d, ", - ssl->in_msglen ) ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "after decompression: input payload", - ssl->in_msg, ssl->in_msglen ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decompress buf" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_ZLIB_SUPPORT */ - -#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) -static int ssl_write_hello_request( mbedtls_ssl_context *ssl ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) -static int ssl_resend_hello_request( mbedtls_ssl_context *ssl ) -{ - /* If renegotiation is not enforced, retransmit until we would reach max - * timeout if we were using the usual handshake doubling scheme */ - if( ssl->conf->renego_max_records < 0 ) - { - uint32_t ratio = ssl->conf->hs_timeout_max / ssl->conf->hs_timeout_min + 1; - unsigned char doublings = 1; - - while( ratio != 0 ) - { - ++doublings; - ratio >>= 1; - } - - if( ++ssl->renego_records_seen > doublings ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "no longer retransmitting hello request" ) ); - return( 0 ); - } - } - - return( ssl_write_hello_request( ssl ) ); -} -#endif -#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */ - -/* - * Fill the input message buffer by appending data to it. - * The amount of data already fetched is in ssl->in_left. - * - * If we return 0, is it guaranteed that (at least) nb_want bytes are - * available (from this read and/or a previous one). Otherwise, an error code - * is returned (possibly EOF or WANT_READ). - * - * With stream transport (TLS) on success ssl->in_left == nb_want, but - * with datagram transport (DTLS) on success ssl->in_left >= nb_want, - * since we always read a whole datagram at once. - * - * For DTLS, it is up to the caller to set ssl->next_record_offset when - * they're done reading a record. - */ -int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want ) -{ - int ret; - size_t len; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> fetch input" ) ); - - if( ssl->f_recv == NULL && ssl->f_recv_timeout == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " - "or mbedtls_ssl_set_bio()" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - if( nb_want > MBEDTLS_SSL_IN_BUFFER_LEN - (size_t)( ssl->in_hdr - ssl->in_buf ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "requesting more data than fits" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - uint32_t timeout; - - /* Just to be sure */ - if( ssl->f_set_timer == NULL || ssl->f_get_timer == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "You must use " - "mbedtls_ssl_set_timer_cb() for DTLS" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - /* - * The point is, we need to always read a full datagram at once, so we - * sometimes read more then requested, and handle the additional data. - * It could be the rest of the current record (while fetching the - * header) and/or some other records in the same datagram. - */ - - /* - * Move to the next record in the already read datagram if applicable - */ - if( ssl->next_record_offset != 0 ) - { - if( ssl->in_left < ssl->next_record_offset ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - ssl->in_left -= ssl->next_record_offset; - - if( ssl->in_left != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "next record in same datagram, offset: %d", - ssl->next_record_offset ) ); - memmove( ssl->in_hdr, - ssl->in_hdr + ssl->next_record_offset, - ssl->in_left ); - } - - ssl->next_record_offset = 0; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d", - ssl->in_left, nb_want ) ); - - /* - * Done if we already have enough data. - */ - if( nb_want <= ssl->in_left) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) ); - return( 0 ); - } - - /* - * A record can't be split across datagrams. If we need to read but - * are not at the beginning of a new record, the caller did something - * wrong. - */ - if( ssl->in_left != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* - * Don't even try to read if time's out already. - * This avoids by-passing the timer when repeatedly receiving messages - * that will end up being dropped. - */ - if( ssl_check_timer( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "timer has expired" ) ); - ret = MBEDTLS_ERR_SSL_TIMEOUT; - } - else - { - len = MBEDTLS_SSL_IN_BUFFER_LEN - ( ssl->in_hdr - ssl->in_buf ); - - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - timeout = ssl->handshake->retransmit_timeout; - else - timeout = ssl->conf->read_timeout; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "f_recv_timeout: %u ms", timeout ) ); - - if( ssl->f_recv_timeout != NULL ) - ret = ssl->f_recv_timeout( ssl->p_bio, ssl->in_hdr, len, - timeout ); - else - ret = ssl->f_recv( ssl->p_bio, ssl->in_hdr, len ); - - MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret ); - - if( ret == 0 ) - return( MBEDTLS_ERR_SSL_CONN_EOF ); - } - - if( ret == MBEDTLS_ERR_SSL_TIMEOUT ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "timeout" ) ); - ssl_set_timer( ssl, 0 ); - - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - { - if( ssl_double_retransmit_timeout( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake timeout" ) ); - return( MBEDTLS_ERR_SSL_TIMEOUT ); - } - - if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret ); - return( ret ); - } - - return( MBEDTLS_ERR_SSL_WANT_READ ); - } -#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) - else if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && - ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) - { - if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret ); - return( ret ); - } - - return( MBEDTLS_ERR_SSL_WANT_READ ); - } -#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */ - } - - if( ret < 0 ) - return( ret ); - - ssl->in_left = ret; - } - else -#endif - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d", - ssl->in_left, nb_want ) ); - - while( ssl->in_left < nb_want ) - { - len = nb_want - ssl->in_left; - - if( ssl_check_timer( ssl ) != 0 ) - ret = MBEDTLS_ERR_SSL_TIMEOUT; - else - { - if( ssl->f_recv_timeout != NULL ) - { - ret = ssl->f_recv_timeout( ssl->p_bio, - ssl->in_hdr + ssl->in_left, len, - ssl->conf->read_timeout ); - } - else - { - ret = ssl->f_recv( ssl->p_bio, - ssl->in_hdr + ssl->in_left, len ); - } - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d", - ssl->in_left, nb_want ) ); - MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret ); - - if( ret == 0 ) - return( MBEDTLS_ERR_SSL_CONN_EOF ); - - if( ret < 0 ) - return( ret ); - - if ( (size_t)ret > len || ( INT_MAX > SIZE_MAX && ret > SIZE_MAX ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, - ( "f_recv returned %d bytes but only %lu were requested", - ret, (unsigned long)len ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - ssl->in_left += ret; - } - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) ); - - return( 0 ); -} - -/* - * Flush any data not yet written - */ -int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl ) -{ - int ret; - unsigned char *buf; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> flush output" ) ); - - if( ssl->f_send == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " - "or mbedtls_ssl_set_bio()" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - /* Avoid incrementing counter if data is flushed */ - if( ssl->out_left == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) ); - return( 0 ); - } - - while( ssl->out_left > 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "message length: %d, out_left: %d", - mbedtls_ssl_hdr_len( ssl ) + ssl->out_msglen, ssl->out_left ) ); - - buf = ssl->out_hdr - ssl->out_left; - ret = ssl->f_send( ssl->p_bio, buf, ssl->out_left ); - - MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_send", ret ); - - if( ret <= 0 ) - return( ret ); - - if( (size_t)ret > ssl->out_left || ( INT_MAX > SIZE_MAX && ret > SIZE_MAX ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, - ( "f_send returned %d bytes but only %lu bytes were sent", - ret, (unsigned long)ssl->out_left ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - ssl->out_left -= ret; - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ssl->out_hdr = ssl->out_buf; - } - else -#endif - { - ssl->out_hdr = ssl->out_buf + 8; - } - ssl_update_out_pointers( ssl, ssl->transform_out ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) ); - - return( 0 ); -} - -/* - * Functions to handle the DTLS retransmission state machine - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) -/* - * Append current handshake message to current outgoing flight - */ -static int ssl_flight_append( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_flight_item *msg; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_flight_append" ) ); - MBEDTLS_SSL_DEBUG_BUF( 4, "message appended to flight", - ssl->out_msg, ssl->out_msglen ); - - /* Allocate space for current message */ - if( ( msg = mbedtls_calloc( 1, sizeof( mbedtls_ssl_flight_item ) ) ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed", - sizeof( mbedtls_ssl_flight_item ) ) ); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - - if( ( msg->p = mbedtls_calloc( 1, ssl->out_msglen ) ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed", ssl->out_msglen ) ); - mbedtls_free( msg ); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - - /* Copy current handshake message with headers */ - memcpy( msg->p, ssl->out_msg, ssl->out_msglen ); - msg->len = ssl->out_msglen; - msg->type = ssl->out_msgtype; - msg->next = NULL; - - /* Append to the current flight */ - if( ssl->handshake->flight == NULL ) - ssl->handshake->flight = msg; - else - { - mbedtls_ssl_flight_item *cur = ssl->handshake->flight; - while( cur->next != NULL ) - cur = cur->next; - cur->next = msg; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_flight_append" ) ); - return( 0 ); -} - -/* - * Free the current flight of handshake messages - */ -static void ssl_flight_free( mbedtls_ssl_flight_item *flight ) -{ - mbedtls_ssl_flight_item *cur = flight; - mbedtls_ssl_flight_item *next; - - while( cur != NULL ) - { - next = cur->next; - - mbedtls_free( cur->p ); - mbedtls_free( cur ); - - cur = next; - } -} - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) -static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl ); -#endif - -/* - * Swap transform_out and out_ctr with the alternative ones - */ -static void ssl_swap_epochs( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_transform *tmp_transform; - unsigned char tmp_out_ctr[8]; - - if( ssl->transform_out == ssl->handshake->alt_transform_out ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip swap epochs" ) ); - return; - } - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "swap epochs" ) ); - - /* Swap transforms */ - tmp_transform = ssl->transform_out; - ssl->transform_out = ssl->handshake->alt_transform_out; - ssl->handshake->alt_transform_out = tmp_transform; - - /* Swap epoch + sequence_number */ - memcpy( tmp_out_ctr, ssl->cur_out_ctr, 8 ); - memcpy( ssl->cur_out_ctr, ssl->handshake->alt_out_ctr, 8 ); - memcpy( ssl->handshake->alt_out_ctr, tmp_out_ctr, 8 ); - - /* Adjust to the newly activated transform */ - ssl_update_out_pointers( ssl, ssl->transform_out ); - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_activate != NULL ) - { - if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - } -#endif -} - -/* - * Retransmit the current flight of messages. - */ -int mbedtls_ssl_resend( mbedtls_ssl_context *ssl ) -{ - int ret = 0; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_resend" ) ); - - ret = mbedtls_ssl_flight_transmit( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_resend" ) ); - - return( ret ); -} - -/* - * Transmit or retransmit the current flight of messages. - * - * Need to remember the current message in case flush_output returns - * WANT_WRITE, causing us to exit this function and come back later. - * This function must be called until state is no longer SENDING. - */ -int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl ) -{ - int ret; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_flight_transmit" ) ); - - if( ssl->handshake->retransmit_state != MBEDTLS_SSL_RETRANS_SENDING ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialise flight transmission" ) ); - - ssl->handshake->cur_msg = ssl->handshake->flight; - ssl->handshake->cur_msg_p = ssl->handshake->flight->p + 12; - ssl_swap_epochs( ssl ); - - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_SENDING; - } - - while( ssl->handshake->cur_msg != NULL ) - { - size_t max_frag_len; - const mbedtls_ssl_flight_item * const cur = ssl->handshake->cur_msg; - - int const is_finished = - ( cur->type == MBEDTLS_SSL_MSG_HANDSHAKE && - cur->p[0] == MBEDTLS_SSL_HS_FINISHED ); - - uint8_t const force_flush = ssl->disable_datagram_packing == 1 ? - SSL_FORCE_FLUSH : SSL_DONT_FORCE_FLUSH; - - /* Swap epochs before sending Finished: we can't do it after - * sending ChangeCipherSpec, in case write returns WANT_READ. - * Must be done before copying, may change out_msg pointer */ - if( is_finished && ssl->handshake->cur_msg_p == ( cur->p + 12 ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "swap epochs to send finished message" ) ); - ssl_swap_epochs( ssl ); - } - - ret = ssl_get_remaining_payload_in_datagram( ssl ); - if( ret < 0 ) - return( ret ); - max_frag_len = (size_t) ret; - - /* CCS is copied as is, while HS messages may need fragmentation */ - if( cur->type == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC ) - { - if( max_frag_len == 0 ) - { - if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - return( ret ); - - continue; - } - - memcpy( ssl->out_msg, cur->p, cur->len ); - ssl->out_msglen = cur->len; - ssl->out_msgtype = cur->type; - - /* Update position inside current message */ - ssl->handshake->cur_msg_p += cur->len; - } - else - { - const unsigned char * const p = ssl->handshake->cur_msg_p; - const size_t hs_len = cur->len - 12; - const size_t frag_off = p - ( cur->p + 12 ); - const size_t rem_len = hs_len - frag_off; - size_t cur_hs_frag_len, max_hs_frag_len; - - if( ( max_frag_len < 12 ) || ( max_frag_len == 12 && hs_len != 0 ) ) - { - if( is_finished ) - ssl_swap_epochs( ssl ); - - if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - return( ret ); - - continue; - } - max_hs_frag_len = max_frag_len - 12; - - cur_hs_frag_len = rem_len > max_hs_frag_len ? - max_hs_frag_len : rem_len; - - if( frag_off == 0 && cur_hs_frag_len != hs_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "fragmenting handshake message (%u > %u)", - (unsigned) cur_hs_frag_len, - (unsigned) max_hs_frag_len ) ); - } - - /* Messages are stored with handshake headers as if not fragmented, - * copy beginning of headers then fill fragmentation fields. - * Handshake headers: type(1) len(3) seq(2) f_off(3) f_len(3) */ - memcpy( ssl->out_msg, cur->p, 6 ); - - ssl->out_msg[6] = ( ( frag_off >> 16 ) & 0xff ); - ssl->out_msg[7] = ( ( frag_off >> 8 ) & 0xff ); - ssl->out_msg[8] = ( ( frag_off ) & 0xff ); - - ssl->out_msg[ 9] = ( ( cur_hs_frag_len >> 16 ) & 0xff ); - ssl->out_msg[10] = ( ( cur_hs_frag_len >> 8 ) & 0xff ); - ssl->out_msg[11] = ( ( cur_hs_frag_len ) & 0xff ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "handshake header", ssl->out_msg, 12 ); - - /* Copy the handshake message content and set records fields */ - memcpy( ssl->out_msg + 12, p, cur_hs_frag_len ); - ssl->out_msglen = cur_hs_frag_len + 12; - ssl->out_msgtype = cur->type; - - /* Update position inside current message */ - ssl->handshake->cur_msg_p += cur_hs_frag_len; - } - - /* If done with the current message move to the next one if any */ - if( ssl->handshake->cur_msg_p >= cur->p + cur->len ) - { - if( cur->next != NULL ) - { - ssl->handshake->cur_msg = cur->next; - ssl->handshake->cur_msg_p = cur->next->p + 12; - } - else - { - ssl->handshake->cur_msg = NULL; - ssl->handshake->cur_msg_p = NULL; - } - } - - /* Actually send the message out */ - if( ( ret = mbedtls_ssl_write_record( ssl, force_flush ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); - return( ret ); - } - } - - if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - return( ret ); - - /* Update state and set timer */ - if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED; - else - { - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING; - ssl_set_timer( ssl, ssl->handshake->retransmit_timeout ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_flight_transmit" ) ); - - return( 0 ); -} - -/* - * To be called when the last message of an incoming flight is received. - */ -void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl ) -{ - /* We won't need to resend that one any more */ - ssl_flight_free( ssl->handshake->flight ); - ssl->handshake->flight = NULL; - ssl->handshake->cur_msg = NULL; - - /* The next incoming flight will start with this msg_seq */ - ssl->handshake->in_flight_start_seq = ssl->handshake->in_msg_seq; - - /* We don't want to remember CCS's across flight boundaries. */ - ssl->handshake->buffering.seen_ccs = 0; - - /* Clear future message buffering structure. */ - ssl_buffering_free( ssl ); - - /* Cancel timer */ - ssl_set_timer( ssl, 0 ); - - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && - ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED ) - { - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED; - } - else - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING; -} - -/* - * To be called when the last message of an outgoing flight is send. - */ -void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl ) -{ - ssl_reset_retransmit_timeout( ssl ); - ssl_set_timer( ssl, ssl->handshake->retransmit_timeout ); - - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && - ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED ) - { - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED; - } - else - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING; -} -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -/* - * Handshake layer functions - */ - -/* - * Write (DTLS: or queue) current handshake (including CCS) message. - * - * - fill in handshake headers - * - update handshake checksum - * - DTLS: save message for resending - * - then pass to the record layer - * - * DTLS: except for HelloRequest, messages are only queued, and will only be - * actually sent when calling flight_transmit() or resend(). - * - * Inputs: - * - ssl->out_msglen: 4 + actual handshake message len - * (4 is the size of handshake headers for TLS) - * - ssl->out_msg[0]: the handshake type (ClientHello, ServerHello, etc) - * - ssl->out_msg + 4: the handshake message body - * - * Outputs, ie state before passing to flight_append() or write_record(): - * - ssl->out_msglen: the length of the record contents - * (including handshake headers but excluding record headers) - * - ssl->out_msg: the record contents (handshake headers + content) - */ -int mbedtls_ssl_write_handshake_msg( mbedtls_ssl_context *ssl ) -{ - int ret; - const size_t hs_len = ssl->out_msglen - 4; - const unsigned char hs_type = ssl->out_msg[0]; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write handshake message" ) ); - - /* - * Sanity checks - */ - if( ssl->out_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE && - ssl->out_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC ) - { - /* In SSLv3, the client might send a NoCertificate alert. */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_CLI_C) - if( ! ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 && - ssl->out_msgtype == MBEDTLS_SSL_MSG_ALERT && - ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) ) -#endif /* MBEDTLS_SSL_PROTO_SSL3 && MBEDTLS_SSL_SRV_C */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } - - /* Whenever we send anything different from a - * HelloRequest we should be in a handshake - double check. */ - if( ! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && - hs_type == MBEDTLS_SSL_HS_HELLO_REQUEST ) && - ssl->handshake == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake != NULL && - ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } -#endif - - /* Double-check that we did not exceed the bounds - * of the outgoing record buffer. - * This should never fail as the various message - * writing functions must obey the bounds of the - * outgoing record buffer, but better be safe. - * - * Note: We deliberately do not check for the MTU or MFL here. - */ - if( ssl->out_msglen > MBEDTLS_SSL_OUT_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record too large: " - "size %u, maximum %u", - (unsigned) ssl->out_msglen, - (unsigned) MBEDTLS_SSL_OUT_CONTENT_LEN ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* - * Fill handshake headers - */ - if( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) - { - ssl->out_msg[1] = (unsigned char)( hs_len >> 16 ); - ssl->out_msg[2] = (unsigned char)( hs_len >> 8 ); - ssl->out_msg[3] = (unsigned char)( hs_len ); - - /* - * DTLS has additional fields in the Handshake layer, - * between the length field and the actual payload: - * uint16 message_seq; - * uint24 fragment_offset; - * uint24 fragment_length; - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - /* Make room for the additional DTLS fields */ - if( MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen < 8 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS handshake message too large: " - "size %u, maximum %u", - (unsigned) ( hs_len ), - (unsigned) ( MBEDTLS_SSL_OUT_CONTENT_LEN - 12 ) ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - memmove( ssl->out_msg + 12, ssl->out_msg + 4, hs_len ); - ssl->out_msglen += 8; - - /* Write message_seq and update it, except for HelloRequest */ - if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST ) - { - ssl->out_msg[4] = ( ssl->handshake->out_msg_seq >> 8 ) & 0xFF; - ssl->out_msg[5] = ( ssl->handshake->out_msg_seq ) & 0xFF; - ++( ssl->handshake->out_msg_seq ); - } - else - { - ssl->out_msg[4] = 0; - ssl->out_msg[5] = 0; - } - - /* Handshake hashes are computed without fragmentation, - * so set frag_offset = 0 and frag_len = hs_len for now */ - memset( ssl->out_msg + 6, 0x00, 3 ); - memcpy( ssl->out_msg + 9, ssl->out_msg + 1, 3 ); - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - /* Update running hashes of handshake messages seen */ - if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST ) - ssl->handshake->update_checksum( ssl, ssl->out_msg, ssl->out_msglen ); - } - - /* Either send now, or just save to be sent (and resent) later */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && - hs_type == MBEDTLS_SSL_HS_HELLO_REQUEST ) ) - { - if( ( ret = ssl_flight_append( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_flight_append", ret ); - return( ret ); - } - } - else -#endif - { - if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_write_record", ret ); - return( ret ); - } - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write handshake message" ) ); - - return( 0 ); -} - -/* - * Record layer functions - */ - -/* - * Write current record. - * - * Uses: - * - ssl->out_msgtype: type of the message (AppData, Handshake, Alert, CCS) - * - ssl->out_msglen: length of the record content (excl headers) - * - ssl->out_msg: record content - */ -int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush ) -{ - int ret, done = 0; - size_t len = ssl->out_msglen; - uint8_t flush = force_flush; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write record" ) ); - -#if defined(MBEDTLS_ZLIB_SUPPORT) - if( ssl->transform_out != NULL && - ssl->session_out->compression == MBEDTLS_SSL_COMPRESS_DEFLATE ) - { - if( ( ret = ssl_compress_buf( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_compress_buf", ret ); - return( ret ); - } - - len = ssl->out_msglen; - } -#endif /*MBEDTLS_ZLIB_SUPPORT */ - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_write != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_write()" ) ); - - ret = mbedtls_ssl_hw_record_write( ssl ); - if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_write", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - if( ret == 0 ) - done = 1; - } -#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ - if( !done ) - { - unsigned i; - size_t protected_record_size; - - ssl->out_hdr[0] = (unsigned char) ssl->out_msgtype; - mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver, - ssl->conf->transport, ssl->out_hdr + 1 ); - - memcpy( ssl->out_ctr, ssl->cur_out_ctr, 8 ); - ssl->out_len[0] = (unsigned char)( len >> 8 ); - ssl->out_len[1] = (unsigned char)( len ); - - if( ssl->transform_out != NULL ) - { - if( ( ret = ssl_encrypt_buf( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_encrypt_buf", ret ); - return( ret ); - } - - len = ssl->out_msglen; - ssl->out_len[0] = (unsigned char)( len >> 8 ); - ssl->out_len[1] = (unsigned char)( len ); - } - - protected_record_size = len + mbedtls_ssl_hdr_len( ssl ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - /* In case of DTLS, double-check that we don't exceed - * the remaining space in the datagram. */ - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ret = ssl_get_remaining_space_in_datagram( ssl ); - if( ret < 0 ) - return( ret ); - - if( protected_record_size > (size_t) ret ) - { - /* Should never happen */ - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "output record: msgtype = %d, " - "version = [%d:%d], msglen = %d", - ssl->out_hdr[0], ssl->out_hdr[1], - ssl->out_hdr[2], len ) ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "output record sent to network", - ssl->out_hdr, protected_record_size ); - - ssl->out_left += protected_record_size; - ssl->out_hdr += protected_record_size; - ssl_update_out_pointers( ssl, ssl->transform_out ); - - for( i = 8; i > ssl_ep_len( ssl ); i-- ) - if( ++ssl->cur_out_ctr[i - 1] != 0 ) - break; - - /* The loop goes to its end iff the counter is wrapping */ - if( i == ssl_ep_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "outgoing message counter would wrap" ) ); - return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); - } - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - flush == SSL_DONT_FORCE_FLUSH ) - { - size_t remaining; - ret = ssl_get_remaining_payload_in_datagram( ssl ); - if( ret < 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_remaining_payload_in_datagram", - ret ); - return( ret ); - } - - remaining = (size_t) ret; - if( remaining == 0 ) - { - flush = SSL_FORCE_FLUSH; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Still %u bytes available in current datagram", (unsigned) remaining ) ); - } - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - if( ( flush == SSL_FORCE_FLUSH ) && - ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write record" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - -static int ssl_hs_is_proper_fragment( mbedtls_ssl_context *ssl ) -{ - if( ssl->in_msglen < ssl->in_hslen || - memcmp( ssl->in_msg + 6, "\0\0\0", 3 ) != 0 || - memcmp( ssl->in_msg + 9, ssl->in_msg + 1, 3 ) != 0 ) - { - return( 1 ); - } - return( 0 ); -} - -static uint32_t ssl_get_hs_frag_len( mbedtls_ssl_context const *ssl ) -{ - return( ( ssl->in_msg[9] << 16 ) | - ( ssl->in_msg[10] << 8 ) | - ssl->in_msg[11] ); -} - -static uint32_t ssl_get_hs_frag_off( mbedtls_ssl_context const *ssl ) -{ - return( ( ssl->in_msg[6] << 16 ) | - ( ssl->in_msg[7] << 8 ) | - ssl->in_msg[8] ); -} - -static int ssl_check_hs_header( mbedtls_ssl_context const *ssl ) -{ - uint32_t msg_len, frag_off, frag_len; - - msg_len = ssl_get_hs_total_len( ssl ); - frag_off = ssl_get_hs_frag_off( ssl ); - frag_len = ssl_get_hs_frag_len( ssl ); - - if( frag_off > msg_len ) - return( -1 ); - - if( frag_len > msg_len - frag_off ) - return( -1 ); - - if( frag_len + 12 > ssl->in_msglen ) - return( -1 ); - - return( 0 ); -} - -/* - * Mark bits in bitmask (used for DTLS HS reassembly) - */ -static void ssl_bitmask_set( unsigned char *mask, size_t offset, size_t len ) -{ - unsigned int start_bits, end_bits; - - start_bits = 8 - ( offset % 8 ); - if( start_bits != 8 ) - { - size_t first_byte_idx = offset / 8; - - /* Special case */ - if( len <= start_bits ) - { - for( ; len != 0; len-- ) - mask[first_byte_idx] |= 1 << ( start_bits - len ); - - /* Avoid potential issues with offset or len becoming invalid */ - return; - } - - offset += start_bits; /* Now offset % 8 == 0 */ - len -= start_bits; - - for( ; start_bits != 0; start_bits-- ) - mask[first_byte_idx] |= 1 << ( start_bits - 1 ); - } - - end_bits = len % 8; - if( end_bits != 0 ) - { - size_t last_byte_idx = ( offset + len ) / 8; - - len -= end_bits; /* Now len % 8 == 0 */ - - for( ; end_bits != 0; end_bits-- ) - mask[last_byte_idx] |= 1 << ( 8 - end_bits ); - } - - memset( mask + offset / 8, 0xFF, len / 8 ); -} - -/* - * Check that bitmask is full - */ -static int ssl_bitmask_check( unsigned char *mask, size_t len ) -{ - size_t i; - - for( i = 0; i < len / 8; i++ ) - if( mask[i] != 0xFF ) - return( -1 ); - - for( i = 0; i < len % 8; i++ ) - if( ( mask[len / 8] & ( 1 << ( 7 - i ) ) ) == 0 ) - return( -1 ); - - return( 0 ); -} - -/* msg_len does not include the handshake header */ -static size_t ssl_get_reassembly_buffer_size( size_t msg_len, - unsigned add_bitmap ) -{ - size_t alloc_len; - - alloc_len = 12; /* Handshake header */ - alloc_len += msg_len; /* Content buffer */ - - if( add_bitmap ) - alloc_len += msg_len / 8 + ( msg_len % 8 != 0 ); /* Bitmap */ - - return( alloc_len ); -} - -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl ) -{ - return( ( ssl->in_msg[1] << 16 ) | - ( ssl->in_msg[2] << 8 ) | - ssl->in_msg[3] ); -} - -int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl ) -{ - if( ssl->in_msglen < mbedtls_ssl_hs_hdr_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too short: %d", - ssl->in_msglen ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - ssl->in_hslen = mbedtls_ssl_hs_hdr_len( ssl ) + ssl_get_hs_total_len( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "handshake message: msglen =" - " %d, type = %d, hslen = %d", - ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - int ret; - unsigned int recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5]; - - if( ssl_check_hs_header( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid handshake header" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - if( ssl->handshake != NULL && - ( ( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER && - recv_msg_seq != ssl->handshake->in_msg_seq ) || - ( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER && - ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) ) ) - { - if( recv_msg_seq > ssl->handshake->in_msg_seq ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "received future handshake message of sequence number %u (next %u)", - recv_msg_seq, - ssl->handshake->in_msg_seq ) ); - return( MBEDTLS_ERR_SSL_EARLY_MESSAGE ); - } - - /* Retransmit only on last message from previous flight, to avoid - * too many retransmissions. - * Besides, No sane server ever retransmits HelloVerifyRequest */ - if( recv_msg_seq == ssl->handshake->in_flight_start_seq - 1 && - ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "received message from last flight, " - "message_seq = %d, start_of_flight = %d", - recv_msg_seq, - ssl->handshake->in_flight_start_seq ) ); - - if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret ); - return( ret ); - } - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "dropping out-of-sequence message: " - "message_seq = %d, expected = %d", - recv_msg_seq, - ssl->handshake->in_msg_seq ) ); - } - - return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING ); - } - /* Wait until message completion to increment in_msg_seq */ - - /* Message reassembly is handled alongside buffering of future - * messages; the commonality is that both handshake fragments and - * future messages cannot be forwarded immediately to the - * handshake logic layer. */ - if( ssl_hs_is_proper_fragment( ssl ) == 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "found fragmented DTLS handshake message" ) ); - return( MBEDTLS_ERR_SSL_EARLY_MESSAGE ); - } - } - else -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - /* With TLS we don't handle fragmentation (for now) */ - if( ssl->in_msglen < ssl->in_hslen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLS handshake fragmentation not supported" ) ); - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); - } - - return( 0 ); -} - -void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER && hs != NULL ) - { - ssl->handshake->update_checksum( ssl, ssl->in_msg, ssl->in_hslen ); - } - - /* Handshake message is complete, increment counter */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake != NULL ) - { - unsigned offset; - mbedtls_ssl_hs_buffer *hs_buf; - - /* Increment handshake sequence number */ - hs->in_msg_seq++; - - /* - * Clear up handshake buffering and reassembly structure. - */ - - /* Free first entry */ - ssl_buffering_free_slot( ssl, 0 ); - - /* Shift all other entries */ - for( offset = 0, hs_buf = &hs->buffering.hs[0]; - offset + 1 < MBEDTLS_SSL_MAX_BUFFERED_HS; - offset++, hs_buf++ ) - { - *hs_buf = *(hs_buf + 1); - } - - /* Create a fresh last entry */ - memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) ); - } -#endif -} - -/* - * DTLS anti-replay: RFC 6347 4.1.2.6 - * - * in_window is a field of bits numbered from 0 (lsb) to 63 (msb). - * Bit n is set iff record number in_window_top - n has been seen. - * - * Usually, in_window_top is the last record number seen and the lsb of - * in_window is set. The only exception is the initial state (record number 0 - * not seen yet). - */ -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) -static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl ) -{ - ssl->in_window_top = 0; - ssl->in_window = 0; -} - -static inline uint64_t ssl_load_six_bytes( unsigned char *buf ) -{ - return( ( (uint64_t) buf[0] << 40 ) | - ( (uint64_t) buf[1] << 32 ) | - ( (uint64_t) buf[2] << 24 ) | - ( (uint64_t) buf[3] << 16 ) | - ( (uint64_t) buf[4] << 8 ) | - ( (uint64_t) buf[5] ) ); -} - -/* - * Return 0 if sequence number is acceptable, -1 otherwise - */ -int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context *ssl ) -{ - uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 ); - uint64_t bit; - - if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED ) - return( 0 ); - - if( rec_seqnum > ssl->in_window_top ) - return( 0 ); - - bit = ssl->in_window_top - rec_seqnum; - - if( bit >= 64 ) - return( -1 ); - - if( ( ssl->in_window & ( (uint64_t) 1 << bit ) ) != 0 ) - return( -1 ); - - return( 0 ); -} - -/* - * Update replay window on new validated record - */ -void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl ) -{ - uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 ); - - if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED ) - return; - - if( rec_seqnum > ssl->in_window_top ) - { - /* Update window_top and the contents of the window */ - uint64_t shift = rec_seqnum - ssl->in_window_top; - - if( shift >= 64 ) - ssl->in_window = 1; - else - { - ssl->in_window <<= shift; - ssl->in_window |= 1; - } - - ssl->in_window_top = rec_seqnum; - } - else - { - /* Mark that number as seen in the current window */ - uint64_t bit = ssl->in_window_top - rec_seqnum; - - if( bit < 64 ) /* Always true, but be extra sure */ - ssl->in_window |= (uint64_t) 1 << bit; - } -} -#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ - -#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) -/* Forward declaration */ -static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ); - -/* - * Without any SSL context, check if a datagram looks like a ClientHello with - * a valid cookie, and if it doesn't, generate a HelloVerifyRequest message. - * Both input and output include full DTLS headers. - * - * - if cookie is valid, return 0 - * - if ClientHello looks superficially valid but cookie is not, - * fill obuf and set olen, then - * return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED - * - otherwise return a specific error code - */ -static int ssl_check_dtls_clihlo_cookie( - mbedtls_ssl_cookie_write_t *f_cookie_write, - mbedtls_ssl_cookie_check_t *f_cookie_check, - void *p_cookie, - const unsigned char *cli_id, size_t cli_id_len, - const unsigned char *in, size_t in_len, - unsigned char *obuf, size_t buf_len, size_t *olen ) -{ - size_t sid_len, cookie_len; - unsigned char *p; - - if( f_cookie_write == NULL || f_cookie_check == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - /* - * Structure of ClientHello with record and handshake headers, - * and expected values. We don't need to check a lot, more checks will be - * done when actually parsing the ClientHello - skipping those checks - * avoids code duplication and does not make cookie forging any easier. - * - * 0-0 ContentType type; copied, must be handshake - * 1-2 ProtocolVersion version; copied - * 3-4 uint16 epoch; copied, must be 0 - * 5-10 uint48 sequence_number; copied - * 11-12 uint16 length; (ignored) - * - * 13-13 HandshakeType msg_type; (ignored) - * 14-16 uint24 length; (ignored) - * 17-18 uint16 message_seq; copied - * 19-21 uint24 fragment_offset; copied, must be 0 - * 22-24 uint24 fragment_length; (ignored) - * - * 25-26 ProtocolVersion client_version; (ignored) - * 27-58 Random random; (ignored) - * 59-xx SessionID session_id; 1 byte len + sid_len content - * 60+ opaque cookie<0..2^8-1>; 1 byte len + content - * ... - * - * Minimum length is 61 bytes. - */ - if( in_len < 61 || - in[0] != MBEDTLS_SSL_MSG_HANDSHAKE || - in[3] != 0 || in[4] != 0 || - in[19] != 0 || in[20] != 0 || in[21] != 0 ) - { - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - } - - sid_len = in[59]; - if( sid_len > in_len - 61 ) - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - - cookie_len = in[60 + sid_len]; - if( cookie_len > in_len - 60 ) - return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO ); - - if( f_cookie_check( p_cookie, in + sid_len + 61, cookie_len, - cli_id, cli_id_len ) == 0 ) - { - /* Valid cookie */ - return( 0 ); - } - - /* - * If we get here, we've got an invalid cookie, let's prepare HVR. - * - * 0-0 ContentType type; copied - * 1-2 ProtocolVersion version; copied - * 3-4 uint16 epoch; copied - * 5-10 uint48 sequence_number; copied - * 11-12 uint16 length; olen - 13 - * - * 13-13 HandshakeType msg_type; hello_verify_request - * 14-16 uint24 length; olen - 25 - * 17-18 uint16 message_seq; copied - * 19-21 uint24 fragment_offset; copied - * 22-24 uint24 fragment_length; olen - 25 - * - * 25-26 ProtocolVersion server_version; 0xfe 0xff - * 27-27 opaque cookie<0..2^8-1>; cookie_len = olen - 27, cookie - * - * Minimum length is 28. - */ - if( buf_len < 28 ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); - - /* Copy most fields and adapt others */ - memcpy( obuf, in, 25 ); - obuf[13] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST; - obuf[25] = 0xfe; - obuf[26] = 0xff; - - /* Generate and write actual cookie */ - p = obuf + 28; - if( f_cookie_write( p_cookie, - &p, obuf + buf_len, cli_id, cli_id_len ) != 0 ) - { - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - *olen = p - obuf; - - /* Go back and fill length fields */ - obuf[27] = (unsigned char)( *olen - 28 ); - - obuf[14] = obuf[22] = (unsigned char)( ( *olen - 25 ) >> 16 ); - obuf[15] = obuf[23] = (unsigned char)( ( *olen - 25 ) >> 8 ); - obuf[16] = obuf[24] = (unsigned char)( ( *olen - 25 ) ); - - obuf[11] = (unsigned char)( ( *olen - 13 ) >> 8 ); - obuf[12] = (unsigned char)( ( *olen - 13 ) ); - - return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ); -} - -/* - * Handle possible client reconnect with the same UDP quadruplet - * (RFC 6347 Section 4.2.8). - * - * Called by ssl_parse_record_header() in case we receive an epoch 0 record - * that looks like a ClientHello. - * - * - if the input looks like a ClientHello without cookies, - * send back HelloVerifyRequest, then - * return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED - * - if the input looks like a ClientHello with a valid cookie, - * reset the session of the current context, and - * return MBEDTLS_ERR_SSL_CLIENT_RECONNECT - * - if anything goes wrong, return a specific error code - * - * mbedtls_ssl_read_record() will ignore the record if anything else than - * MBEDTLS_ERR_SSL_CLIENT_RECONNECT or 0 is returned, although this function - * cannot not return 0. - */ -static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl ) -{ - int ret; - size_t len; - - ret = ssl_check_dtls_clihlo_cookie( - ssl->conf->f_cookie_write, - ssl->conf->f_cookie_check, - ssl->conf->p_cookie, - ssl->cli_id, ssl->cli_id_len, - ssl->in_buf, ssl->in_left, - ssl->out_buf, MBEDTLS_SSL_OUT_CONTENT_LEN, &len ); - - MBEDTLS_SSL_DEBUG_RET( 2, "ssl_check_dtls_clihlo_cookie", ret ); - - if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ) - { - /* Don't check write errors as we can't do anything here. - * If the error is permanent we'll catch it later, - * if it's not, then hopefully it'll work next time. */ - (void) ssl->f_send( ssl->p_bio, ssl->out_buf, len ); - - return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ); - } - - if( ret == 0 ) - { - /* Got a valid cookie, partially reset context */ - if( ( ret = ssl_session_reset_int( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "reset", ret ); - return( ret ); - } - - return( MBEDTLS_ERR_SSL_CLIENT_RECONNECT ); - } - - return( ret ); -} -#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */ - -/* - * ContentType type; - * ProtocolVersion version; - * uint16 epoch; // DTLS only - * uint48 sequence_number; // DTLS only - * uint16 length; - * - * Return 0 if header looks sane (and, for DTLS, the record is expected) - * MBEDTLS_ERR_SSL_INVALID_RECORD if the header looks bad, - * MBEDTLS_ERR_SSL_UNEXPECTED_RECORD (DTLS only) if sane but unexpected. - * - * With DTLS, mbedtls_ssl_read_record() will: - * 1. proceed with the record if this function returns 0 - * 2. drop only the current record if this function returns UNEXPECTED_RECORD - * 3. return CLIENT_RECONNECT if this function return that value - * 4. drop the whole datagram if this function returns anything else. - * Point 2 is needed when the peer is resending, and we have already received - * the first record from a datagram but are still waiting for the others. - */ -static int ssl_parse_record_header( mbedtls_ssl_context *ssl ) -{ - int major_ver, minor_ver; - - MBEDTLS_SSL_DEBUG_BUF( 4, "input record header", ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) ); - - ssl->in_msgtype = ssl->in_hdr[0]; - ssl->in_msglen = ( ssl->in_len[0] << 8 ) | ssl->in_len[1]; - mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, ssl->in_hdr + 1 ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "input record: msgtype = %d, " - "version = [%d:%d], msglen = %d", - ssl->in_msgtype, - major_ver, minor_ver, ssl->in_msglen ) ); - - /* Check record type */ - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE && - ssl->in_msgtype != MBEDTLS_SSL_MSG_ALERT && - ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC && - ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type" ) ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - /* Silently ignore invalid DTLS records as recommended by RFC 6347 - * Section 4.1.2.7 */ - if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ) -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - /* Check version */ - if( major_ver != ssl->major_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - if( minor_ver > ssl->conf->max_minor_ver ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - /* Check length against the size of our buffer */ - if( ssl->in_msglen > MBEDTLS_SSL_IN_BUFFER_LEN - - (size_t)( ssl->in_msg - ssl->in_buf ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - /* - * DTLS-related tests. - * Check epoch before checking length constraint because - * the latter varies with the epoch. E.g., if a ChangeCipherSpec - * message gets duplicated before the corresponding Finished message, - * the second ChangeCipherSpec should be discarded because it belongs - * to an old epoch, but not because its length is shorter than - * the minimum record length for packets using the new record transform. - * Note that these two kinds of failures are handled differently, - * as an unexpected record is silently skipped but an invalid - * record leads to the entire datagram being dropped. - */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - unsigned int rec_epoch = ( ssl->in_ctr[0] << 8 ) | ssl->in_ctr[1]; - - /* Check epoch (and sequence number) with DTLS */ - if( rec_epoch != ssl->in_epoch ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "record from another epoch: " - "expected %d, received %d", - ssl->in_epoch, rec_epoch ) ); - -#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) - /* - * Check for an epoch 0 ClientHello. We can't use in_msg here to - * access the first byte of record content (handshake type), as we - * have an active transform (possibly iv_len != 0), so use the - * fact that the record header len is 13 instead. - */ - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && - ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER && - rec_epoch == 0 && - ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && - ssl->in_left > 13 && - ssl->in_buf[13] == MBEDTLS_SSL_HS_CLIENT_HELLO ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "possible client reconnect " - "from the same port" ) ); - return( ssl_handle_possible_reconnect( ssl ) ); - } - else -#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */ - { - /* Consider buffering the record. */ - if( rec_epoch == (unsigned int) ssl->in_epoch + 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Consider record for buffering" ) ); - return( MBEDTLS_ERR_SSL_EARLY_MESSAGE ); - } - - return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); - } - } - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - /* Replay detection only works for the current epoch */ - if( rec_epoch == ssl->in_epoch && - mbedtls_ssl_dtls_replay_check( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record" ) ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); - } -#endif - - /* Drop unexpected ApplicationData records, - * except at the beginning of renegotiations */ - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA && - ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER -#if defined(MBEDTLS_SSL_RENEGOTIATION) - && ! ( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS && - ssl->state == MBEDTLS_SSL_SERVER_HELLO ) -#endif - ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping unexpected ApplicationData" ) ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); - } - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - - /* Check length against bounds of the current transform and version */ - if( ssl->transform_in == NULL ) - { - if( ssl->in_msglen < 1 || - ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - } - else - { - if( ssl->in_msglen < ssl->transform_in->minlen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 && - ssl->in_msglen > ssl->transform_in->minlen + MBEDTLS_SSL_IN_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - /* - * TLS encrypted messages can have up to 256 bytes of padding - */ - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 && - ssl->in_msglen > ssl->transform_in->minlen + - MBEDTLS_SSL_IN_CONTENT_LEN + 256 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } -#endif - } - - return( 0 ); -} - -/* - * If applicable, decrypt (and decompress) record content - */ -static int ssl_prepare_record_content( mbedtls_ssl_context *ssl ) -{ - int ret, done = 0; - - MBEDTLS_SSL_DEBUG_BUF( 4, "input record from network", - ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen ); - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_read != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_read()" ) ); - - ret = mbedtls_ssl_hw_record_read( ssl ); - if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_read", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - if( ret == 0 ) - done = 1; - } -#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ - if( !done && ssl->transform_in != NULL ) - { - if( ( ret = ssl_decrypt_buf( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decrypt_buf", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_BUF( 4, "input payload after decrypt", - ssl->in_msg, ssl->in_msglen ); - - if( ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - } - -#if defined(MBEDTLS_ZLIB_SUPPORT) - if( ssl->transform_in != NULL && - ssl->session_in->compression == MBEDTLS_SSL_COMPRESS_DEFLATE ) - { - if( ( ret = ssl_decompress_buf( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decompress_buf", ret ); - return( ret ); - } - } -#endif /* MBEDTLS_ZLIB_SUPPORT */ - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - mbedtls_ssl_dtls_replay_update( ssl ); - } -#endif - - return( 0 ); -} - -static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl ); - -/* - * Read a record. - * - * Silently ignore non-fatal alert (and for DTLS, invalid records as well, - * RFC 6347 4.1.2.7) and continue reading until a valid record is found. - * - */ - -/* Helper functions for mbedtls_ssl_read_record(). */ -static int ssl_consume_current_message( mbedtls_ssl_context *ssl ); -static int ssl_get_next_record( mbedtls_ssl_context *ssl ); -static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl ); - -int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl, - unsigned update_hs_digest ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read record" ) ); - - if( ssl->keep_current_message == 0 ) - { - do { - - ret = ssl_consume_current_message( ssl ); - if( ret != 0 ) - return( ret ); - - if( ssl_record_is_in_progress( ssl ) == 0 ) - { -#if defined(MBEDTLS_SSL_PROTO_DTLS) - int have_buffered = 0; - - /* We only check for buffered messages if the - * current datagram is fully consumed. */ - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl_next_record_is_in_datagram( ssl ) == 0 ) - { - if( ssl_load_buffered_message( ssl ) == 0 ) - have_buffered = 1; - } - - if( have_buffered == 0 ) -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - { - ret = ssl_get_next_record( ssl ); - if( ret == MBEDTLS_ERR_SSL_CONTINUE_PROCESSING ) - continue; - - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_get_next_record" ), ret ); - return( ret ); - } - } - } - - ret = mbedtls_ssl_handle_message_type( ssl ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE ) - { - /* Buffer future message */ - ret = ssl_buffer_message( ssl ); - if( ret != 0 ) - return( ret ); - - ret = MBEDTLS_ERR_SSL_CONTINUE_PROCESSING; - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - } while( MBEDTLS_ERR_SSL_NON_FATAL == ret || - MBEDTLS_ERR_SSL_CONTINUE_PROCESSING == ret ); - - if( 0 != ret ) - { - MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_handle_message_type" ), ret ); - return( ret ); - } - - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && - update_hs_digest == 1 ) - { - mbedtls_ssl_update_handshake_status( ssl ); - } - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "reuse previously read message" ) ); - ssl->keep_current_message = 0; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read record" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_PROTO_DTLS) -static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl ) -{ - if( ssl->in_left > ssl->next_record_offset ) - return( 1 ); - - return( 0 ); -} - -static int ssl_load_buffered_message( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - mbedtls_ssl_hs_buffer * hs_buf; - int ret = 0; - - if( hs == NULL ) - return( -1 ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_messsage" ) ); - - if( ssl->state == MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC || - ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC ) - { - /* Check if we have seen a ChangeCipherSpec before. - * If yes, synthesize a CCS record. */ - if( !hs->buffering.seen_ccs ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "CCS not seen in the current flight" ) ); - ret = -1; - goto exit; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Injecting buffered CCS message" ) ); - ssl->in_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC; - ssl->in_msglen = 1; - ssl->in_msg[0] = 1; - - /* As long as they are equal, the exact value doesn't matter. */ - ssl->in_left = 0; - ssl->next_record_offset = 0; - - hs->buffering.seen_ccs = 0; - goto exit; - } - -#if defined(MBEDTLS_DEBUG_C) - /* Debug only */ - { - unsigned offset; - for( offset = 1; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ ) - { - hs_buf = &hs->buffering.hs[offset]; - if( hs_buf->is_valid == 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Future message with sequence number %u %s buffered.", - hs->in_msg_seq + offset, - hs_buf->is_complete ? "fully" : "partially" ) ); - } - } - } -#endif /* MBEDTLS_DEBUG_C */ - - /* Check if we have buffered and/or fully reassembled the - * next handshake message. */ - hs_buf = &hs->buffering.hs[0]; - if( ( hs_buf->is_valid == 1 ) && ( hs_buf->is_complete == 1 ) ) - { - /* Synthesize a record containing the buffered HS message. */ - size_t msg_len = ( hs_buf->data[1] << 16 ) | - ( hs_buf->data[2] << 8 ) | - hs_buf->data[3]; - - /* Double-check that we haven't accidentally buffered - * a message that doesn't fit into the input buffer. */ - if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message has been buffered - load" ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered handshake message (incl. header)", - hs_buf->data, msg_len + 12 ); - - ssl->in_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->in_hslen = msg_len + 12; - ssl->in_msglen = msg_len + 12; - memcpy( ssl->in_msg, hs_buf->data, ssl->in_hslen ); - - ret = 0; - goto exit; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message %u not or only partially bufffered", - hs->in_msg_seq ) ); - } - - ret = -1; - -exit: - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_message" ) ); - return( ret ); -} - -static int ssl_buffer_make_space( mbedtls_ssl_context *ssl, - size_t desired ) -{ - int offset; - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Attempt to free buffered messages to have %u bytes available", - (unsigned) desired ) ); - - /* Get rid of future records epoch first, if such exist. */ - ssl_free_buffered_record( ssl ); - - /* Check if we have enough space available now. */ - if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING - - hs->buffering.total_bytes_buffered ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing future epoch record" ) ); - return( 0 ); - } - - /* We don't have enough space to buffer the next expected handshake - * message. Remove buffers used for future messages to gain space, - * starting with the most distant one. */ - for( offset = MBEDTLS_SSL_MAX_BUFFERED_HS - 1; - offset >= 0; offset-- ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Free buffering slot %d to make space for reassembly of next handshake message", - offset ) ); - - ssl_buffering_free_slot( ssl, (uint8_t) offset ); - - /* Check if we have enough space available now. */ - if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING - - hs->buffering.total_bytes_buffered ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing buffered HS messages" ) ); - return( 0 ); - } - } - - return( -1 ); -} - -static int ssl_buffer_message( mbedtls_ssl_context *ssl ) -{ - int ret = 0; - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - - if( hs == NULL ) - return( 0 ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_buffer_message" ) ); - - switch( ssl->in_msgtype ) - { - case MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC: - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Remember CCS message" ) ); - - hs->buffering.seen_ccs = 1; - break; - - case MBEDTLS_SSL_MSG_HANDSHAKE: - { - unsigned recv_msg_seq_offset; - unsigned recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5]; - mbedtls_ssl_hs_buffer *hs_buf; - size_t msg_len = ssl->in_hslen - 12; - - /* We should never receive an old handshake - * message - double-check nonetheless. */ - if( recv_msg_seq < ssl->handshake->in_msg_seq ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - recv_msg_seq_offset = recv_msg_seq - ssl->handshake->in_msg_seq; - if( recv_msg_seq_offset >= MBEDTLS_SSL_MAX_BUFFERED_HS ) - { - /* Silently ignore -- message too far in the future */ - MBEDTLS_SSL_DEBUG_MSG( 2, - ( "Ignore future HS message with sequence number %u, " - "buffering window %u - %u", - recv_msg_seq, ssl->handshake->in_msg_seq, - ssl->handshake->in_msg_seq + MBEDTLS_SSL_MAX_BUFFERED_HS - 1 ) ); - - goto exit; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering HS message with sequence number %u, offset %u ", - recv_msg_seq, recv_msg_seq_offset ) ); - - hs_buf = &hs->buffering.hs[ recv_msg_seq_offset ]; - - /* Check if the buffering for this seq nr has already commenced. */ - if( !hs_buf->is_valid ) - { - size_t reassembly_buf_sz; - - hs_buf->is_fragmented = - ( ssl_hs_is_proper_fragment( ssl ) == 1 ); - - /* We copy the message back into the input buffer - * after reassembly, so check that it's not too large. - * This is an implementation-specific limitation - * and not one from the standard, hence it is not - * checked in ssl_check_hs_header(). */ - if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN ) - { - /* Ignore message */ - goto exit; - } - - /* Check if we have enough space to buffer the message. */ - if( hs->buffering.total_bytes_buffered > - MBEDTLS_SSL_DTLS_MAX_BUFFERING ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - reassembly_buf_sz = ssl_get_reassembly_buffer_size( msg_len, - hs_buf->is_fragmented ); - - if( reassembly_buf_sz > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING - - hs->buffering.total_bytes_buffered ) ) - { - if( recv_msg_seq_offset > 0 ) - { - /* If we can't buffer a future message because - * of space limitations -- ignore. */ - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- ignore\n", - (unsigned) msg_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING, - (unsigned) hs->buffering.total_bytes_buffered ) ); - goto exit; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- attempt to make space by freeing buffered future messages\n", - (unsigned) msg_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING, - (unsigned) hs->buffering.total_bytes_buffered ) ); - } - - if( ssl_buffer_make_space( ssl, reassembly_buf_sz ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reassembly of next message of size %u (%u with bitmap) would exceed the compile-time limit %u (already %u bytes buffered) -- fail\n", - (unsigned) msg_len, - (unsigned) reassembly_buf_sz, - MBEDTLS_SSL_DTLS_MAX_BUFFERING, - (unsigned) hs->buffering.total_bytes_buffered ) ); - ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL; - goto exit; - } - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialize reassembly, total length = %d", - msg_len ) ); - - hs_buf->data = mbedtls_calloc( 1, reassembly_buf_sz ); - if( hs_buf->data == NULL ) - { - ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; - goto exit; - } - hs_buf->data_len = reassembly_buf_sz; - - /* Prepare final header: copy msg_type, length and message_seq, - * then add standardised fragment_offset and fragment_length */ - memcpy( hs_buf->data, ssl->in_msg, 6 ); - memset( hs_buf->data + 6, 0, 3 ); - memcpy( hs_buf->data + 9, hs_buf->data + 1, 3 ); - - hs_buf->is_valid = 1; - - hs->buffering.total_bytes_buffered += reassembly_buf_sz; - } - else - { - /* Make sure msg_type and length are consistent */ - if( memcmp( hs_buf->data, ssl->in_msg, 4 ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Fragment header mismatch - ignore" ) ); - /* Ignore */ - goto exit; - } - } - - if( !hs_buf->is_complete ) - { - size_t frag_len, frag_off; - unsigned char * const msg = hs_buf->data + 12; - - /* - * Check and copy current fragment - */ - - /* Validation of header fields already done in - * mbedtls_ssl_prepare_handshake_record(). */ - frag_off = ssl_get_hs_frag_off( ssl ); - frag_len = ssl_get_hs_frag_len( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "adding fragment, offset = %d, length = %d", - frag_off, frag_len ) ); - memcpy( msg + frag_off, ssl->in_msg + 12, frag_len ); - - if( hs_buf->is_fragmented ) - { - unsigned char * const bitmask = msg + msg_len; - ssl_bitmask_set( bitmask, frag_off, frag_len ); - hs_buf->is_complete = ( ssl_bitmask_check( bitmask, - msg_len ) == 0 ); - } - else - { - hs_buf->is_complete = 1; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "message %scomplete", - hs_buf->is_complete ? "" : "not yet " ) ); - } - - break; - } - - default: - /* We don't buffer other types of messages. */ - break; - } - -exit: - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_buffer_message" ) ); - return( ret ); -} -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -static int ssl_consume_current_message( mbedtls_ssl_context *ssl ) -{ - /* - * Consume last content-layer message and potentially - * update in_msglen which keeps track of the contents' - * consumption state. - * - * (1) Handshake messages: - * Remove last handshake message, move content - * and adapt in_msglen. - * - * (2) Alert messages: - * Consume whole record content, in_msglen = 0. - * - * (3) Change cipher spec: - * Consume whole record content, in_msglen = 0. - * - * (4) Application data: - * Don't do anything - the record layer provides - * the application data as a stream transport - * and consumes through mbedtls_ssl_read only. - * - */ - - /* Case (1): Handshake messages */ - if( ssl->in_hslen != 0 ) - { - /* Hard assertion to be sure that no application data - * is in flight, as corrupting ssl->in_msglen during - * ssl->in_offt != NULL is fatal. */ - if( ssl->in_offt != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - /* - * Get next Handshake message in the current record - */ - - /* Notes: - * (1) in_hslen is not necessarily the size of the - * current handshake content: If DTLS handshake - * fragmentation is used, that's the fragment - * size instead. Using the total handshake message - * size here is faulty and should be changed at - * some point. - * (2) While it doesn't seem to cause problems, one - * has to be very careful not to assume that in_hslen - * is always <= in_msglen in a sensible communication. - * Again, it's wrong for DTLS handshake fragmentation. - * The following check is therefore mandatory, and - * should not be treated as a silently corrected assertion. - * Additionally, ssl->in_hslen might be arbitrarily out of - * bounds after handling a DTLS message with an unexpected - * sequence number, see mbedtls_ssl_prepare_handshake_record. - */ - if( ssl->in_hslen < ssl->in_msglen ) - { - ssl->in_msglen -= ssl->in_hslen; - memmove( ssl->in_msg, ssl->in_msg + ssl->in_hslen, - ssl->in_msglen ); - - MBEDTLS_SSL_DEBUG_BUF( 4, "remaining content in record", - ssl->in_msg, ssl->in_msglen ); - } - else - { - ssl->in_msglen = 0; - } - - ssl->in_hslen = 0; - } - /* Case (4): Application data */ - else if( ssl->in_offt != NULL ) - { - return( 0 ); - } - /* Everything else (CCS & Alerts) */ - else - { - ssl->in_msglen = 0; - } - - return( 0 ); -} - -static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl ) -{ - if( ssl->in_msglen > 0 ) - return( 1 ); - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - -static void ssl_free_buffered_record( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - if( hs == NULL ) - return; - - if( hs->buffering.future_record.data != NULL ) - { - hs->buffering.total_bytes_buffered -= - hs->buffering.future_record.len; - - mbedtls_free( hs->buffering.future_record.data ); - hs->buffering.future_record.data = NULL; - } -} - -static int ssl_load_buffered_record( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - unsigned char * rec; - size_t rec_len; - unsigned rec_epoch; - - if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - return( 0 ); - - if( hs == NULL ) - return( 0 ); - - rec = hs->buffering.future_record.data; - rec_len = hs->buffering.future_record.len; - rec_epoch = hs->buffering.future_record.epoch; - - if( rec == NULL ) - return( 0 ); - - /* Only consider loading future records if the - * input buffer is empty. */ - if( ssl_next_record_is_in_datagram( ssl ) == 1 ) - return( 0 ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_record" ) ); - - if( rec_epoch != ssl->in_epoch ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffered record not from current epoch." ) ); - goto exit; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Found buffered record from current epoch - load" ) ); - - /* Double-check that the record is not too large */ - if( rec_len > MBEDTLS_SSL_IN_BUFFER_LEN - - (size_t)( ssl->in_hdr - ssl->in_buf ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - memcpy( ssl->in_hdr, rec, rec_len ); - ssl->in_left = rec_len; - ssl->next_record_offset = 0; - - ssl_free_buffered_record( ssl ); - -exit: - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_record" ) ); - return( 0 ); -} - -static int ssl_buffer_future_record( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - size_t const rec_hdr_len = 13; - size_t const total_buf_sz = rec_hdr_len + ssl->in_msglen; - - /* Don't buffer future records outside handshakes. */ - if( hs == NULL ) - return( 0 ); - - /* Only buffer handshake records (we are only interested - * in Finished messages). */ - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - return( 0 ); - - /* Don't buffer more than one future epoch record. */ - if( hs->buffering.future_record.data != NULL ) - return( 0 ); - - /* Don't buffer record if there's not enough buffering space remaining. */ - if( total_buf_sz > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING - - hs->buffering.total_bytes_buffered ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future epoch record of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- ignore\n", - (unsigned) total_buf_sz, MBEDTLS_SSL_DTLS_MAX_BUFFERING, - (unsigned) hs->buffering.total_bytes_buffered ) ); - return( 0 ); - } - - /* Buffer record */ - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffer record from epoch %u", - ssl->in_epoch + 1 ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered record", ssl->in_hdr, - rec_hdr_len + ssl->in_msglen ); - - /* ssl_parse_record_header() only considers records - * of the next epoch as candidates for buffering. */ - hs->buffering.future_record.epoch = ssl->in_epoch + 1; - hs->buffering.future_record.len = total_buf_sz; - - hs->buffering.future_record.data = - mbedtls_calloc( 1, hs->buffering.future_record.len ); - if( hs->buffering.future_record.data == NULL ) - { - /* If we run out of RAM trying to buffer a - * record from the next epoch, just ignore. */ - return( 0 ); - } - - memcpy( hs->buffering.future_record.data, ssl->in_hdr, total_buf_sz ); - - hs->buffering.total_bytes_buffered += total_buf_sz; - return( 0 ); -} - -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -static int ssl_get_next_record( mbedtls_ssl_context *ssl ) -{ - int ret; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - /* We might have buffered a future record; if so, - * and if the epoch matches now, load it. - * On success, this call will set ssl->in_left to - * the length of the buffered record, so that - * the calls to ssl_fetch_input() below will - * essentially be no-ops. */ - ret = ssl_load_buffered_record( ssl ); - if( ret != 0 ) - return( ret ); -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - if( ( ret = mbedtls_ssl_fetch_input( ssl, mbedtls_ssl_hdr_len( ssl ) ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); - return( ret ); - } - - if( ( ret = ssl_parse_record_header( ssl ) ) != 0 ) - { -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ret != MBEDTLS_ERR_SSL_CLIENT_RECONNECT ) - { - if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE ) - { - ret = ssl_buffer_future_record( ssl ); - if( ret != 0 ) - return( ret ); - - /* Fall through to handling of unexpected records */ - ret = MBEDTLS_ERR_SSL_UNEXPECTED_RECORD; - } - - if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ) - { - /* Skip unexpected record (but not whole datagram) */ - ssl->next_record_offset = ssl->in_msglen - + mbedtls_ssl_hdr_len( ssl ); - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding unexpected record " - "(header)" ) ); - } - else - { - /* Skip invalid record and the rest of the datagram */ - ssl->next_record_offset = 0; - ssl->in_left = 0; - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record " - "(header)" ) ); - } - - /* Get next record */ - return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING ); - } -#endif - return( ret ); - } - - /* - * Read and optionally decrypt the message contents - */ - if( ( ret = mbedtls_ssl_fetch_input( ssl, - mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret ); - return( ret ); - } - - /* Done reading this record, get ready for the next one */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ssl->next_record_offset = ssl->in_msglen + mbedtls_ssl_hdr_len( ssl ); - if( ssl->next_record_offset < ssl->in_left ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "more than one record within datagram" ) ); - } - } - else -#endif - ssl->in_left = 0; - - if( ( ret = ssl_prepare_record_content( ssl ) ) != 0 ) - { -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - /* Silently discard invalid records */ - if( ret == MBEDTLS_ERR_SSL_INVALID_RECORD || - ret == MBEDTLS_ERR_SSL_INVALID_MAC ) - { - /* Except when waiting for Finished as a bad mac here - * probably means something went wrong in the handshake - * (eg wrong psk used, mitm downgrade attempt, etc.) */ - if( ssl->state == MBEDTLS_SSL_CLIENT_FINISHED || - ssl->state == MBEDTLS_SSL_SERVER_FINISHED ) - { -#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES) - if( ret == MBEDTLS_ERR_SSL_INVALID_MAC ) - { - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC ); - } -#endif - return( ret ); - } - -#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) - if( ssl->conf->badmac_limit != 0 && - ++ssl->badmac_seen >= ssl->conf->badmac_limit ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "too many records with bad MAC" ) ); - return( MBEDTLS_ERR_SSL_INVALID_MAC ); - } -#endif - - /* As above, invalid records cause - * dismissal of the whole datagram. */ - - ssl->next_record_offset = 0; - ssl->in_left = 0; - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record (mac)" ) ); - return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING ); - } - - return( ret ); - } - else -#endif - { - /* Error out (and send alert) on invalid records */ -#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES) - if( ret == MBEDTLS_ERR_SSL_INVALID_MAC ) - { - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC ); - } -#endif - return( ret ); - } - } - - return( 0 ); -} - -int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl ) -{ - int ret; - - /* - * Handle particular types of records - */ - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) - { - if( ( ret = mbedtls_ssl_prepare_handshake_record( ssl ) ) != 0 ) - { - return( ret ); - } - } - - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC ) - { - if( ssl->in_msglen != 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, len: %d", - ssl->in_msglen ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - if( ssl->in_msg[0] != 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, content: %02x", - ssl->in_msg[0] ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->state != MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC && - ssl->state != MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC ) - { - if( ssl->handshake == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping ChangeCipherSpec outside handshake" ) ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "received out-of-order ChangeCipherSpec - remember" ) ); - return( MBEDTLS_ERR_SSL_EARLY_MESSAGE ); - } -#endif - } - - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT ) - { - if( ssl->in_msglen != 2 ) - { - /* Note: Standard allows for more than one 2 byte alert - to be packed in a single message, but Mbed TLS doesn't - currently support this. */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid alert message, len: %d", - ssl->in_msglen ) ); - return( MBEDTLS_ERR_SSL_INVALID_RECORD ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%d:%d]", - ssl->in_msg[0], ssl->in_msg[1] ) ); - - /* - * Ignore non-fatal alerts, except close_notify and no_renegotiation - */ - if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_FATAL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "is a fatal alert message (msg %d)", - ssl->in_msg[1] ) ); - return( MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE ); - } - - if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && - ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a close notify message" ) ); - return( MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY ); - } - -#if defined(MBEDTLS_SSL_RENEGOTIATION_ENABLED) - if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && - ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no renegotiation alert" ) ); - /* Will be handled when trying to parse ServerHello */ - return( 0 ); - } -#endif - -#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_SRV_C) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 && - ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && - ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && - ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no_cert" ) ); - /* Will be handled in mbedtls_ssl_parse_certificate() */ - return( 0 ); - } -#endif /* MBEDTLS_SSL_PROTO_SSL3 && MBEDTLS_SSL_SRV_C */ - - /* Silently ignore: fetch new message */ - return MBEDTLS_ERR_SSL_NON_FATAL; - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake != NULL && - ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) - { - ssl_handshake_wrapup_free_hs_transform( ssl ); - } -#endif - - return( 0 ); -} - -int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl ) -{ - int ret; - - if( ( ret = mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ) ) != 0 ) - { - return( ret ); - } - - return( 0 ); -} - -int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl, - unsigned char level, - unsigned char message ) -{ - int ret; - - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> send alert message" ) ); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "send alert level=%u message=%u", level, message )); - - ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT; - ssl->out_msglen = 2; - ssl->out_msg[0] = level; - ssl->out_msg[1] = message; - - if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); - return( ret ); - } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= send alert message" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -static void ssl_clear_peer_cert( mbedtls_ssl_session *session ) -{ -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - if( session->peer_cert != NULL ) - { - mbedtls_x509_crt_free( session->peer_cert ); - mbedtls_free( session->peer_cert ); - session->peer_cert = NULL; - } -#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( session->peer_cert_digest != NULL ) - { - /* Zeroization is not necessary. */ - mbedtls_free( session->peer_cert_digest ); - session->peer_cert_digest = NULL; - session->peer_cert_digest_type = MBEDTLS_MD_NONE; - session->peer_cert_digest_len = 0; - } -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -/* - * Handshake functions - */ -#if !defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -/* No certificate support -> dummy functions */ -int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) ); - - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); - ssl->state++; - return( 0 ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); -} - -int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) ); - - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); - ssl->state++; - return( 0 ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); -} - -#else /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ -/* Some certificate support -> implement write and parse */ - -int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - size_t i, n; - const mbedtls_x509_crt *crt; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) ); - - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); - ssl->state++; - return( 0 ); - } - -#if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - { - if( ssl->client_auth == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); - ssl->state++; - return( 0 ); - } - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - /* - * If using SSLv3 and got no cert, send an Alert message - * (otherwise an empty Certificate message will be sent). - */ - if( mbedtls_ssl_own_cert( ssl ) == NULL && - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - ssl->out_msglen = 2; - ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT; - ssl->out_msg[0] = MBEDTLS_SSL_ALERT_LEVEL_WARNING; - ssl->out_msg[1] = MBEDTLS_SSL_ALERT_MSG_NO_CERT; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) ); - goto write_msg; - } -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - } -#endif /* MBEDTLS_SSL_CLI_C */ -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - { - if( mbedtls_ssl_own_cert( ssl ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no certificate to send" ) ); - return( MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED ); - } - } -#endif - - MBEDTLS_SSL_DEBUG_CRT( 3, "own certificate", mbedtls_ssl_own_cert( ssl ) ); - - /* - * 0 . 0 handshake type - * 1 . 3 handshake length - * 4 . 6 length of all certs - * 7 . 9 length of cert. 1 - * 10 . n-1 peer certificate - * n . n+2 length of cert. 2 - * n+3 . ... upper level cert, etc. - */ - i = 7; - crt = mbedtls_ssl_own_cert( ssl ); - - while( crt != NULL ) - { - n = crt->raw.len; - if( n > MBEDTLS_SSL_OUT_CONTENT_LEN - 3 - i ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %d > %d", - i + 3 + n, MBEDTLS_SSL_OUT_CONTENT_LEN ) ); - return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE ); - } - - ssl->out_msg[i ] = (unsigned char)( n >> 16 ); - ssl->out_msg[i + 1] = (unsigned char)( n >> 8 ); - ssl->out_msg[i + 2] = (unsigned char)( n ); - - i += 3; memcpy( ssl->out_msg + i, crt->raw.p, n ); - i += n; crt = crt->next; - } - - ssl->out_msg[4] = (unsigned char)( ( i - 7 ) >> 16 ); - ssl->out_msg[5] = (unsigned char)( ( i - 7 ) >> 8 ); - ssl->out_msg[6] = (unsigned char)( ( i - 7 ) ); - - ssl->out_msglen = i; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE; - -#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_CLI_C) -write_msg: -#endif - - ssl->state++; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate" ) ); - - return( ret ); -} - -#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) - -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) -static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, - unsigned char *crt_buf, - size_t crt_buf_len ) -{ - mbedtls_x509_crt const * const peer_crt = ssl->session->peer_cert; - - if( peer_crt == NULL ) - return( -1 ); - - if( peer_crt->raw.len != crt_buf_len ) - return( -1 ); - - return( memcmp( peer_crt->raw.p, crt_buf, crt_buf_len ) ); -} -#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, - unsigned char *crt_buf, - size_t crt_buf_len ) -{ - int ret; - unsigned char const * const peer_cert_digest = - ssl->session->peer_cert_digest; - mbedtls_md_type_t const peer_cert_digest_type = - ssl->session->peer_cert_digest_type; - mbedtls_md_info_t const * const digest_info = - mbedtls_md_info_from_type( peer_cert_digest_type ); - unsigned char tmp_digest[MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN]; - size_t digest_len; - - if( peer_cert_digest == NULL || digest_info == NULL ) - return( -1 ); - - digest_len = mbedtls_md_get_size( digest_info ); - if( digest_len > MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN ) - return( -1 ); - - ret = mbedtls_md( digest_info, crt_buf, crt_buf_len, tmp_digest ); - if( ret != 0 ) - return( -1 ); - - return( memcmp( tmp_digest, peer_cert_digest, digest_len ) ); -} -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -#endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */ - -/* - * Once the certificate message is read, parse it into a cert chain and - * perform basic checks, but leave actual verification to the caller - */ -static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *chain ) -{ - int ret; -#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) - int crt_cnt=0; -#endif - size_t i, n; - uint8_t alert; - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE || - ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 3 + 3 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); - } - - i = mbedtls_ssl_hs_hdr_len( ssl ); - - /* - * Same message structure as in mbedtls_ssl_write_certificate() - */ - n = ( ssl->in_msg[i+1] << 8 ) | ssl->in_msg[i+2]; - - if( ssl->in_msg[i] != 0 || - ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); - } - - /* Make &ssl->in_msg[i] point to the beginning of the CRT chain. */ - i += 3; - - /* Iterate through and parse the CRTs in the provided chain. */ - while( i < ssl->in_hslen ) - { - /* Check that there's room for the next CRT's length fields. */ - if ( i + 3 > ssl->in_hslen ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); - } - /* In theory, the CRT can be up to 2**24 Bytes, but we don't support - * anything beyond 2**16 ~ 64K. */ - if( ssl->in_msg[i] != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); - } - - /* Read length of the next CRT in the chain. */ - n = ( (unsigned int) ssl->in_msg[i + 1] << 8 ) - | (unsigned int) ssl->in_msg[i + 2]; - i += 3; - - if( n < 128 || i + n > ssl->in_hslen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); - } - - /* Check if we're handling the first CRT in the chain. */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) - if( crt_cnt++ == 0 && - ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && - ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - /* During client-side renegotiation, check that the server's - * end-CRTs hasn't changed compared to the initial handshake, - * mitigating the triple handshake attack. On success, reuse - * the original end-CRT instead of parsing it again. */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Check that peer CRT hasn't changed during renegotiation" ) ); - if( ssl_check_peer_crt_unchanged( ssl, - &ssl->in_msg[i], - n ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); - } - - /* Now we can safely free the original chain. */ - ssl_clear_peer_cert( ssl->session ); - } -#endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */ - - /* Parse the next certificate in the chain. */ -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - ret = mbedtls_x509_crt_parse_der( chain, ssl->in_msg + i, n ); -#else - /* If we don't need to store the CRT chain permanently, parse - * it in-place from the input buffer instead of making a copy. */ - ret = mbedtls_x509_crt_parse_der_nocopy( chain, ssl->in_msg + i, n ); -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - switch( ret ) - { - case 0: /*ok*/ - case MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + MBEDTLS_ERR_OID_NOT_FOUND: - /* Ignore certificate with an unknown algorithm: maybe a - prior certificate was already trusted. */ - break; - - case MBEDTLS_ERR_X509_ALLOC_FAILED: - alert = MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR; - goto crt_parse_der_failed; - - case MBEDTLS_ERR_X509_UNKNOWN_VERSION: - alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - goto crt_parse_der_failed; - - default: - alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT; - crt_parse_der_failed: - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert ); - MBEDTLS_SSL_DEBUG_RET( 1, " mbedtls_x509_crt_parse_der", ret ); - return( ret ); - } - - i += n; - } - - MBEDTLS_SSL_DEBUG_CRT( 3, "peer certificate", chain ); - return( 0 ); -} - -#if defined(MBEDTLS_SSL_SRV_C) -static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl ) -{ - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - return( -1 ); - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - /* - * Check if the client sent an empty certificate - */ - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - if( ssl->in_msglen == 2 && - ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT && - ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && - ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "SSLv3 client has no certificate" ) ); - return( 0 ); - } - - return( -1 ); - } -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->in_hslen == 3 + mbedtls_ssl_hs_hdr_len( ssl ) && - ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && - ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE && - memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), "\0\0\0", 3 ) == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLSv1 client has no certificate" ) ); - return( 0 ); - } - - return( -1 ); -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ - MBEDTLS_SSL_PROTO_TLS1_2 */ -} -#endif /* MBEDTLS_SSL_SRV_C */ - -/* Check if a certificate message is expected. - * Return either - * - SSL_CERTIFICATE_EXPECTED, or - * - SSL_CERTIFICATE_SKIP - * indicating whether a Certificate message is expected or not. - */ -#define SSL_CERTIFICATE_EXPECTED 0 -#define SSL_CERTIFICATE_SKIP 1 -static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl, - int authmode ) -{ - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - return( SSL_CERTIFICATE_SKIP ); - -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - { - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - return( SSL_CERTIFICATE_SKIP ); - - if( authmode == MBEDTLS_SSL_VERIFY_NONE ) - { - ssl->session_negotiate->verify_result = - MBEDTLS_X509_BADCERT_SKIP_VERIFY; - return( SSL_CERTIFICATE_SKIP ); - } - } -#else - ((void) authmode); -#endif /* MBEDTLS_SSL_SRV_C */ - - return( SSL_CERTIFICATE_EXPECTED ); -} - -static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, - int authmode, - mbedtls_x509_crt *chain, - void *rs_ctx ) -{ - int ret = 0; - const mbedtls_ssl_ciphersuite_t *ciphersuite_info = - ssl->transform_negotiate->ciphersuite_info; - int have_ca_chain = 0; - - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *); - void *p_vrfy; - - if( authmode == MBEDTLS_SSL_VERIFY_NONE ) - return( 0 ); - - if( ssl->f_vrfy != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use context-specific verification callback" ) ); - f_vrfy = ssl->f_vrfy; - p_vrfy = ssl->p_vrfy; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use configuration-specific verification callback" ) ); - f_vrfy = ssl->conf->f_vrfy; - p_vrfy = ssl->conf->p_vrfy; - } - - /* - * Main check: verify certificate - */ -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - if( ssl->conf->f_ca_cb != NULL ) - { - ((void) rs_ctx); - have_ca_chain = 1; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "use CA callback for X.509 CRT verification" ) ); - ret = mbedtls_x509_crt_verify_with_ca_cb( - chain, - ssl->conf->f_ca_cb, - ssl->conf->p_ca_cb, - ssl->conf->cert_profile, - ssl->hostname, - &ssl->session_negotiate->verify_result, - f_vrfy, p_vrfy ); - } - else -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ - { - mbedtls_x509_crt *ca_chain; - mbedtls_x509_crl *ca_crl; - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - if( ssl->handshake->sni_ca_chain != NULL ) - { - ca_chain = ssl->handshake->sni_ca_chain; - ca_crl = ssl->handshake->sni_ca_crl; - } - else -#endif - { - ca_chain = ssl->conf->ca_chain; - ca_crl = ssl->conf->ca_crl; - } - - if( ca_chain != NULL ) - have_ca_chain = 1; - - ret = mbedtls_x509_crt_verify_restartable( - chain, - ca_chain, ca_crl, - ssl->conf->cert_profile, - ssl->hostname, - &ssl->session_negotiate->verify_result, - f_vrfy, p_vrfy, rs_ctx ); - } - - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "x509_verify_cert", ret ); - } - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - return( MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS ); -#endif - - /* - * Secondary checks: always done, but change 'ret' only if it was 0 - */ - -#if defined(MBEDTLS_ECP_C) - { - const mbedtls_pk_context *pk = &chain->pk; - - /* If certificate uses an EC key, make sure the curve is OK */ - if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) && - mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 ) - { - ssl->session_negotiate->verify_result |= MBEDTLS_X509_BADCERT_BAD_KEY; - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (EC key curve)" ) ); - if( ret == 0 ) - ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; - } - } -#endif /* MBEDTLS_ECP_C */ - - if( mbedtls_ssl_check_cert_usage( chain, - ciphersuite_info, - ! ssl->conf->endpoint, - &ssl->session_negotiate->verify_result ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (usage extensions)" ) ); - if( ret == 0 ) - ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; - } - - /* mbedtls_x509_crt_verify_with_profile is supposed to report a - * verification failure through MBEDTLS_ERR_X509_CERT_VERIFY_FAILED, - * with details encoded in the verification flags. All other kinds - * of error codes, including those from the user provided f_vrfy - * functions, are treated as fatal and lead to a failure of - * ssl_parse_certificate even if verification was optional. */ - if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL && - ( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED || - ret == MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ) ) - { - ret = 0; - } - - if( have_ca_chain == 0 && authmode == MBEDTLS_SSL_VERIFY_REQUIRED ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no CA chain" ) ); - ret = MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED; - } - - if( ret != 0 ) - { - uint8_t alert; - - /* The certificate may have been rejected for several reasons. - Pick one and send the corresponding alert. Which alert to send - may be a subject of debate in some cases. */ - if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_OTHER ) - alert = MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH ) - alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_KEY_USAGE ) - alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXT_KEY_USAGE ) - alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NS_CERT_TYPE ) - alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_PK ) - alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_KEY ) - alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXPIRED ) - alert = MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_REVOKED ) - alert = MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED ) - alert = MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA; - else - alert = MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN; - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - alert ); - } - -#if defined(MBEDTLS_DEBUG_C) - if( ssl->session_negotiate->verify_result != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "! Certificate verification flags %x", - ssl->session_negotiate->verify_result ) ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Certificate verification flags clear" ) ); - } -#endif /* MBEDTLS_DEBUG_C */ - - return( ret ); -} - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) -static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl, - unsigned char *start, size_t len ) -{ - int ret; - /* Remember digest of the peer's end-CRT. */ - ssl->session_negotiate->peer_cert_digest = - mbedtls_calloc( 1, MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN ); - if( ssl->session_negotiate->peer_cert_digest == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", - sizeof( MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN ) ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - - ret = mbedtls_md( mbedtls_md_info_from_type( - MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE ), - start, len, - ssl->session_negotiate->peer_cert_digest ); - - ssl->session_negotiate->peer_cert_digest_type = - MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE; - ssl->session_negotiate->peer_cert_digest_len = - MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN; - - return( ret ); -} - -static int ssl_remember_peer_pubkey( mbedtls_ssl_context *ssl, - unsigned char *start, size_t len ) -{ - unsigned char *end = start + len; - int ret; - - /* Make a copy of the peer's raw public key. */ - mbedtls_pk_init( &ssl->handshake->peer_pubkey ); - ret = mbedtls_pk_parse_subpubkey( &start, end, - &ssl->handshake->peer_pubkey ); - if( ret != 0 ) - { - /* We should have parsed the public key before. */ - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - return( 0 ); -} -#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - -int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) -{ - int ret = 0; - int crt_expected; -#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - const int authmode = ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET - ? ssl->handshake->sni_authmode - : ssl->conf->authmode; -#else - const int authmode = ssl->conf->authmode; -#endif - void *rs_ctx = NULL; - mbedtls_x509_crt *chain = NULL; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) ); - - crt_expected = ssl_parse_certificate_coordinate( ssl, authmode ); - if( crt_expected == SSL_CERTIFICATE_SKIP ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); - goto exit; - } - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled && - ssl->handshake->ecrs_state == ssl_ecrs_crt_verify ) - { - chain = ssl->handshake->ecrs_peer_cert; - ssl->handshake->ecrs_peer_cert = NULL; - goto crt_verify; - } -#endif - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - /* mbedtls_ssl_read_record may have sent an alert already. We - let it decide whether to alert. */ - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - goto exit; - } - -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl_srv_check_client_no_crt_notification( ssl ) == 0 ) - { - ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING; - - if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL ) - ret = 0; - else - ret = MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE; - - goto exit; - } -#endif /* MBEDTLS_SSL_SRV_C */ - - /* Clear existing peer CRT structure in case we tried to - * reuse a session but it failed, and allocate a new one. */ - ssl_clear_peer_cert( ssl->session_negotiate ); - - chain = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ); - if( chain == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", - sizeof( mbedtls_x509_crt ) ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - - ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; - goto exit; - } - mbedtls_x509_crt_init( chain ); - - ret = ssl_parse_certificate_chain( ssl, chain ); - if( ret != 0 ) - goto exit; - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ssl->handshake->ecrs_enabled) - ssl->handshake->ecrs_state = ssl_ecrs_crt_verify; - -crt_verify: - if( ssl->handshake->ecrs_enabled) - rs_ctx = &ssl->handshake->ecrs_ctx; -#endif - - ret = ssl_parse_certificate_verify( ssl, authmode, - chain, rs_ctx ); - if( ret != 0 ) - goto exit; - -#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - { - unsigned char *crt_start, *pk_start; - size_t crt_len, pk_len; - - /* We parse the CRT chain without copying, so - * these pointers point into the input buffer, - * and are hence still valid after freeing the - * CRT chain. */ - - crt_start = chain->raw.p; - crt_len = chain->raw.len; - - pk_start = chain->pk_raw.p; - pk_len = chain->pk_raw.len; - - /* Free the CRT structures before computing - * digest and copying the peer's public key. */ - mbedtls_x509_crt_free( chain ); - mbedtls_free( chain ); - chain = NULL; - - ret = ssl_remember_peer_crt_digest( ssl, crt_start, crt_len ); - if( ret != 0 ) - goto exit; - - ret = ssl_remember_peer_pubkey( ssl, pk_start, pk_len ); - if( ret != 0 ) - goto exit; - } -#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - /* Pass ownership to session structure. */ - ssl->session_negotiate->peer_cert = chain; - chain = NULL; -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate" ) ); - -exit: - - if( ret == 0 ) - ssl->state++; - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS ) - { - ssl->handshake->ecrs_peer_cert = chain; - chain = NULL; - } -#endif - - if( chain != NULL ) - { - mbedtls_x509_crt_free( chain ); - mbedtls_free( chain ); - } - - return( ret ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write change cipher spec" ) ); - - ssl->out_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC; - ssl->out_msglen = 1; - ssl->out_msg[0] = 1; - - ssl->state++; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write change cipher spec" ) ); - - return( 0 ); -} - -int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse change cipher spec" ) ); - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - /* CCS records are only accepted if they have length 1 and content '1', - * so we don't need to check this here. */ - - /* - * Switch to our negotiated transform and session parameters for inbound - * data. - */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for inbound data" ) ); - ssl->transform_in = ssl->transform_negotiate; - ssl->session_in = ssl->session_negotiate; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - ssl_dtls_replay_reset( ssl ); -#endif - - /* Increment epoch */ - if( ++ssl->in_epoch == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) ); - /* This is highly unlikely to happen for legitimate reasons, so - treat it as an attack and don't send an alert. */ - return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); - } - } - else -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - memset( ssl->in_ctr, 0, 8 ); - - ssl_update_in_pointers( ssl, ssl->transform_negotiate ); - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_activate != NULL ) - { - if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_INBOUND ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - } -#endif - - ssl->state++; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse change cipher spec" ) ); - - return( 0 ); -} - -void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl, - const mbedtls_ssl_ciphersuite_t *ciphersuite_info ) -{ - ((void) ciphersuite_info); - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) - ssl->handshake->update_checksum = ssl_update_checksum_md5sha1; - else -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA512_C) - if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 ) - ssl->handshake->update_checksum = ssl_update_checksum_sha384; - else -#endif -#if defined(MBEDTLS_SHA256_C) - if( ciphersuite_info->mac != MBEDTLS_MD_SHA384 ) - ssl->handshake->update_checksum = ssl_update_checksum_sha256; - else -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return; - } -} - -void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl ) -{ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_starts_ret( &ssl->handshake->fin_md5 ); - mbedtls_sha1_starts_ret( &ssl->handshake->fin_sha1 ); -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &ssl->handshake->fin_sha256_psa ); - psa_hash_setup( &ssl->handshake->fin_sha256_psa, PSA_ALG_SHA_256 ); -#else - mbedtls_sha256_starts_ret( &ssl->handshake->fin_sha256, 0 ); -#endif -#endif -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &ssl->handshake->fin_sha384_psa ); - psa_hash_setup( &ssl->handshake->fin_sha384_psa, PSA_ALG_SHA_384 ); -#else - mbedtls_sha512_starts_ret( &ssl->handshake->fin_sha512, 1 ); -#endif -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -} - -static void ssl_update_checksum_start( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len ); - mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len ); -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len ); -#else - mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len ); -#endif -#endif -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len ); -#else - mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len ); -#endif -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -} - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) -static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ - mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len ); - mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len ); -} -#endif - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -static void ssl_update_checksum_sha256( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len ); -#else - mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len ); -#endif -} -#endif - -#if defined(MBEDTLS_SHA512_C) -static void ssl_update_checksum_sha384( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len ); -#else - mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len ); -#endif -} -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -#if defined(MBEDTLS_SSL_PROTO_SSL3) -static void ssl_calc_finished_ssl( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) -{ - const char *sender; - mbedtls_md5_context md5; - mbedtls_sha1_context sha1; - - unsigned char padbuf[48]; - unsigned char md5sum[16]; - unsigned char sha1sum[20]; - - mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) - session = ssl->session; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished ssl" ) ); - - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); - - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); - - /* - * SSLv3: - * hash = - * MD5( master + pad2 + - * MD5( handshake + sender + master + pad1 ) ) - * + SHA1( master + pad2 + - * SHA1( handshake + sender + master + pad1 ) ) - */ - -#if !defined(MBEDTLS_MD5_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *) - md5.state, sizeof( md5.state ) ); -#endif - -#if !defined(MBEDTLS_SHA1_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *) - sha1.state, sizeof( sha1.state ) ); -#endif - - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) ? "CLNT" - : "SRVR"; - - memset( padbuf, 0x36, 48 ); - - mbedtls_md5_update_ret( &md5, (const unsigned char *) sender, 4 ); - mbedtls_md5_update_ret( &md5, session->master, 48 ); - mbedtls_md5_update_ret( &md5, padbuf, 48 ); - mbedtls_md5_finish_ret( &md5, md5sum ); - - mbedtls_sha1_update_ret( &sha1, (const unsigned char *) sender, 4 ); - mbedtls_sha1_update_ret( &sha1, session->master, 48 ); - mbedtls_sha1_update_ret( &sha1, padbuf, 40 ); - mbedtls_sha1_finish_ret( &sha1, sha1sum ); - - memset( padbuf, 0x5C, 48 ); - - mbedtls_md5_starts_ret( &md5 ); - mbedtls_md5_update_ret( &md5, session->master, 48 ); - mbedtls_md5_update_ret( &md5, padbuf, 48 ); - mbedtls_md5_update_ret( &md5, md5sum, 16 ); - mbedtls_md5_finish_ret( &md5, buf ); - - mbedtls_sha1_starts_ret( &sha1 ); - mbedtls_sha1_update_ret( &sha1, session->master, 48 ); - mbedtls_sha1_update_ret( &sha1, padbuf , 40 ); - mbedtls_sha1_update_ret( &sha1, sha1sum, 20 ); - mbedtls_sha1_finish_ret( &sha1, buf + 16 ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, 36 ); - - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); - - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); - mbedtls_platform_zeroize( md5sum, sizeof( md5sum ) ); - mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); -} -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) -static void ssl_calc_finished_tls( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) -{ - int len = 12; - const char *sender; - mbedtls_md5_context md5; - mbedtls_sha1_context sha1; - unsigned char padbuf[36]; - - mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) - session = ssl->session; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls" ) ); - - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); - - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); - - /* - * TLSv1: - * hash = PRF( master, finished_label, - * MD5( handshake ) + SHA1( handshake ) )[0..11] - */ - -#if !defined(MBEDTLS_MD5_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *) - md5.state, sizeof( md5.state ) ); -#endif - -#if !defined(MBEDTLS_SHA1_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *) - sha1.state, sizeof( sha1.state ) ); -#endif - - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) - ? "client finished" - : "server finished"; - - mbedtls_md5_finish_ret( &md5, padbuf ); - mbedtls_sha1_finish_ret( &sha1, padbuf + 16 ); - - ssl->handshake->tls_prf( session->master, 48, sender, - padbuf, 36, buf, len ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); - - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); - - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); -} -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -static void ssl_calc_finished_tls_sha256( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) -{ - int len = 12; - const char *sender; - unsigned char padbuf[32]; -#if defined(MBEDTLS_USE_PSA_CRYPTO) - size_t hash_size; - psa_hash_operation_t sha256_psa = PSA_HASH_OPERATION_INIT; - psa_status_t status; -#else - mbedtls_sha256_context sha256; -#endif - - mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) - session = ssl->session; - - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) - ? "client finished" - : "server finished"; - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - sha256_psa = psa_hash_operation_init(); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha256" ) ); - - status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); - return; - } - - status = psa_hash_finish( &sha256_psa, padbuf, sizeof( padbuf ), &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); - return; - } - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 32 ); -#else - - mbedtls_sha256_init( &sha256 ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha256" ) ); - - mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 ); - - /* - * TLSv1.2: - * hash = PRF( master, finished_label, - * Hash( handshake ) )[0.11] - */ - -#if !defined(MBEDTLS_SHA256_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha2 state", (unsigned char *) - sha256.state, sizeof( sha256.state ) ); -#endif - - mbedtls_sha256_finish_ret( &sha256, padbuf ); - mbedtls_sha256_free( &sha256 ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - - ssl->handshake->tls_prf( session->master, 48, sender, - padbuf, 32, buf, len ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); - - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); -} -#endif /* MBEDTLS_SHA256_C */ - -#if defined(MBEDTLS_SHA512_C) -static void ssl_calc_finished_tls_sha384( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) -{ - int len = 12; - const char *sender; - unsigned char padbuf[48]; -#if defined(MBEDTLS_USE_PSA_CRYPTO) - size_t hash_size; - psa_hash_operation_t sha384_psa = PSA_HASH_OPERATION_INIT; - psa_status_t status; -#else - mbedtls_sha512_context sha512; -#endif - - mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) - session = ssl->session; - - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) - ? "client finished" - : "server finished"; - -#if defined(MBEDTLS_USE_PSA_CRYPTO) - sha384_psa = psa_hash_operation_init(); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha384" ) ); - - status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); - return; - } - - status = psa_hash_finish( &sha384_psa, padbuf, sizeof( padbuf ), &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); - return; - } - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 48 ); -#else - mbedtls_sha512_init( &sha512 ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha384" ) ); - - mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 ); - - /* - * TLSv1.2: - * hash = PRF( master, finished_label, - * Hash( handshake ) )[0.11] - */ - -#if !defined(MBEDTLS_SHA512_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha512 state", (unsigned char *) - sha512.state, sizeof( sha512.state ) ); -#endif - - mbedtls_sha512_finish_ret( &sha512, padbuf ); - mbedtls_sha512_free( &sha512 ); -#endif - - ssl->handshake->tls_prf( session->master, 48, sender, - padbuf, 48, buf, len ); - - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); - - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); -} -#endif /* MBEDTLS_SHA512_C */ -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl ) -{ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup: final free" ) ); - - /* - * Free our handshake params - */ - mbedtls_ssl_handshake_free( ssl ); - mbedtls_free( ssl->handshake ); - ssl->handshake = NULL; - - /* - * Free the previous transform and swith in the current one - */ - if( ssl->transform ) - { - mbedtls_ssl_transform_free( ssl->transform ); - mbedtls_free( ssl->transform ); - } - ssl->transform = ssl->transform_negotiate; - ssl->transform_negotiate = NULL; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup: final free" ) ); -} - -void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl ) -{ - int resume = ssl->handshake->resume; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup" ) ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_DONE; - ssl->renego_records_seen = 0; - } -#endif - - /* - * Free the previous session and switch in the current one - */ - if( ssl->session ) - { -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - /* RFC 7366 3.1: keep the EtM state */ - ssl->session_negotiate->encrypt_then_mac = - ssl->session->encrypt_then_mac; -#endif - - mbedtls_ssl_session_free( ssl->session ); - mbedtls_free( ssl->session ); - } - ssl->session = ssl->session_negotiate; - ssl->session_negotiate = NULL; - - /* - * Add cache entry - */ - if( ssl->conf->f_set_cache != NULL && - ssl->session->id_len != 0 && - resume == 0 ) - { - if( ssl->conf->f_set_cache( ssl->conf->p_cache, ssl->session ) != 0 ) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "cache did not store session" ) ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake->flight != NULL ) - { - /* Cancel handshake timer */ - ssl_set_timer( ssl, 0 ); - - /* Keep last flight around in case we need to resend it: - * we need the handshake and transform structures for that */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip freeing handshake and transform" ) ); - } - else -#endif - ssl_handshake_wrapup_free_hs_transform( ssl ); - - ssl->state++; - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup" ) ); -} - -int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ) -{ - int ret, hash_len; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write finished" ) ); - - ssl_update_out_pointers( ssl, ssl->transform_negotiate ); - - ssl->handshake->calc_finished( ssl, ssl->out_msg + 4, ssl->conf->endpoint ); - - /* - * RFC 5246 7.4.9 (Page 63) says 12 is the default length and ciphersuites - * may define some other value. Currently (early 2016), no defined - * ciphersuite does this (and this is unlikely to change as activity has - * moved to TLS 1.3 now) so we can keep the hardcoded 12 here. - */ - hash_len = ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) ? 36 : 12; - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ssl->verify_data_len = hash_len; - memcpy( ssl->own_verify_data, ssl->out_msg + 4, hash_len ); -#endif - - ssl->out_msglen = 4 + hash_len; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_FINISHED; - - /* - * In case of session resuming, invert the client and server - * ChangeCipherSpec messages order. - */ - if( ssl->handshake->resume != 0 ) - { -#if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; -#endif -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC; -#endif - } - else - ssl->state++; - - /* - * Switch to our negotiated transform and session parameters for outbound - * data. - */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for outbound data" ) ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - unsigned char i; - - /* Remember current epoch settings for resending */ - ssl->handshake->alt_transform_out = ssl->transform_out; - memcpy( ssl->handshake->alt_out_ctr, ssl->cur_out_ctr, 8 ); - - /* Set sequence_number to zero */ - memset( ssl->cur_out_ctr + 2, 0, 6 ); - - /* Increment epoch */ - for( i = 2; i > 0; i-- ) - if( ++ssl->cur_out_ctr[i - 1] != 0 ) - break; - - /* The loop goes to its end iff the counter is wrapping */ - if( i == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) ); - return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); - } - } - else -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - memset( ssl->cur_out_ctr, 0, 8 ); - - ssl->transform_out = ssl->transform_negotiate; - ssl->session_out = ssl->session_negotiate; - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_activate != NULL ) - { - if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - } -#endif - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_send_flight_completed( ssl ); -#endif - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret ); - return( ret ); - } -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write finished" ) ); - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_PROTO_SSL3) -#define SSL_MAX_HASH_LEN 36 -#else -#define SSL_MAX_HASH_LEN 12 -#endif - -int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl ) -{ - int ret; - unsigned int hash_len; - unsigned char buf[SSL_MAX_HASH_LEN]; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse finished" ) ); - - ssl->handshake->calc_finished( ssl, buf, ssl->conf->endpoint ^ 1 ); - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - /* There is currently no ciphersuite using another length with TLS 1.2 */ -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - hash_len = 36; - else -#endif - hash_len = 12; - - if( ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED || - ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + hash_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED ); - } - - if( mbedtls_ssl_safer_memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), - buf, hash_len ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED ); - } - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ssl->verify_data_len = hash_len; - memcpy( ssl->peer_verify_data, buf, hash_len ); -#endif - - if( ssl->handshake->resume != 0 ) - { -#if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC; -#endif -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; -#endif - } - else - ssl->state++; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_recv_flight_completed( ssl ); -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse finished" ) ); - - return( 0 ); -} - -static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake ) -{ - memset( handshake, 0, sizeof( mbedtls_ssl_handshake_params ) ); - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_init( &handshake->fin_md5 ); - mbedtls_sha1_init( &handshake->fin_sha1 ); - mbedtls_md5_starts_ret( &handshake->fin_md5 ); - mbedtls_sha1_starts_ret( &handshake->fin_sha1 ); -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - handshake->fin_sha256_psa = psa_hash_operation_init(); - psa_hash_setup( &handshake->fin_sha256_psa, PSA_ALG_SHA_256 ); -#else - mbedtls_sha256_init( &handshake->fin_sha256 ); - mbedtls_sha256_starts_ret( &handshake->fin_sha256, 0 ); -#endif -#endif -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - handshake->fin_sha384_psa = psa_hash_operation_init(); - psa_hash_setup( &handshake->fin_sha384_psa, PSA_ALG_SHA_384 ); -#else - mbedtls_sha512_init( &handshake->fin_sha512 ); - mbedtls_sha512_starts_ret( &handshake->fin_sha512, 1 ); -#endif -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - - handshake->update_checksum = ssl_update_checksum_start; - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - mbedtls_ssl_sig_hash_set_init( &handshake->hash_algs ); -#endif - -#if defined(MBEDTLS_DHM_C) - mbedtls_dhm_init( &handshake->dhm_ctx ); -#endif -#if defined(MBEDTLS_ECDH_C) - mbedtls_ecdh_init( &handshake->ecdh_ctx ); -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - mbedtls_ecjpake_init( &handshake->ecjpake_ctx ); -#if defined(MBEDTLS_SSL_CLI_C) - handshake->ecjpake_cache = NULL; - handshake->ecjpake_cache_len = 0; -#endif -#endif - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - mbedtls_x509_crt_restart_init( &handshake->ecrs_ctx ); -#endif - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - handshake->sni_authmode = MBEDTLS_SSL_VERIFY_UNSET; -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_pk_init( &handshake->peer_pubkey ); -#endif -} - -static void ssl_transform_init( mbedtls_ssl_transform *transform ) -{ - memset( transform, 0, sizeof(mbedtls_ssl_transform) ); - - mbedtls_cipher_init( &transform->cipher_ctx_enc ); - mbedtls_cipher_init( &transform->cipher_ctx_dec ); - - mbedtls_md_init( &transform->md_ctx_enc ); - mbedtls_md_init( &transform->md_ctx_dec ); -} - -void mbedtls_ssl_session_init( mbedtls_ssl_session *session ) -{ - memset( session, 0, sizeof(mbedtls_ssl_session) ); -} - -static int ssl_handshake_init( mbedtls_ssl_context *ssl ) -{ - /* Clear old handshake information if present */ - if( ssl->transform_negotiate ) - mbedtls_ssl_transform_free( ssl->transform_negotiate ); - if( ssl->session_negotiate ) - mbedtls_ssl_session_free( ssl->session_negotiate ); - if( ssl->handshake ) - mbedtls_ssl_handshake_free( ssl ); - - /* - * Either the pointers are now NULL or cleared properly and can be freed. - * Now allocate missing structures. - */ - if( ssl->transform_negotiate == NULL ) - { - ssl->transform_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_transform) ); - } - - if( ssl->session_negotiate == NULL ) - { - ssl->session_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_session) ); - } - - if( ssl->handshake == NULL ) - { - ssl->handshake = mbedtls_calloc( 1, sizeof(mbedtls_ssl_handshake_params) ); - } - - /* All pointers should exist and can be directly freed without issue */ - if( ssl->handshake == NULL || - ssl->transform_negotiate == NULL || - ssl->session_negotiate == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc() of ssl sub-contexts failed" ) ); - - mbedtls_free( ssl->handshake ); - mbedtls_free( ssl->transform_negotiate ); - mbedtls_free( ssl->session_negotiate ); - - ssl->handshake = NULL; - ssl->transform_negotiate = NULL; - ssl->session_negotiate = NULL; - - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - } - - /* Initialize structures */ - mbedtls_ssl_session_init( ssl->session_negotiate ); - ssl_transform_init( ssl->transform_negotiate ); - ssl_handshake_params_init( ssl->handshake ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ssl->handshake->alt_transform_out = ssl->transform_out; - - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING; - else - ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING; - - ssl_set_timer( ssl, 0 ); - } -#endif - - return( 0 ); -} - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) -/* Dummy cookie callbacks for defaults */ -static int ssl_cookie_write_dummy( void *ctx, - unsigned char **p, unsigned char *end, - const unsigned char *cli_id, size_t cli_id_len ) -{ - ((void) ctx); - ((void) p); - ((void) end); - ((void) cli_id); - ((void) cli_id_len); - - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -} - -static int ssl_cookie_check_dummy( void *ctx, - const unsigned char *cookie, size_t cookie_len, - const unsigned char *cli_id, size_t cli_id_len ) -{ - ((void) ctx); - ((void) cookie); - ((void) cookie_len); - ((void) cli_id); - ((void) cli_id_len); - - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -} -#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ - -/* Once ssl->out_hdr as the address of the beginning of the - * next outgoing record is set, deduce the other pointers. - * - * Note: For TLS, we save the implicit record sequence number - * (entering MAC computation) in the 8 bytes before ssl->out_hdr, - * and the caller has to make sure there's space for this. - */ - -static void ssl_update_out_pointers( mbedtls_ssl_context *ssl, - mbedtls_ssl_transform *transform ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ssl->out_ctr = ssl->out_hdr + 3; - ssl->out_len = ssl->out_hdr + 11; - ssl->out_iv = ssl->out_hdr + 13; - } - else -#endif - { - ssl->out_ctr = ssl->out_hdr - 8; - ssl->out_len = ssl->out_hdr + 3; - ssl->out_iv = ssl->out_hdr + 5; - } - - /* Adjust out_msg to make space for explicit IV, if used. */ - if( transform != NULL && - ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) - { - ssl->out_msg = ssl->out_iv + transform->ivlen - transform->fixed_ivlen; - } - else - ssl->out_msg = ssl->out_iv; -} - -/* Once ssl->in_hdr as the address of the beginning of the - * next incoming record is set, deduce the other pointers. - * - * Note: For TLS, we save the implicit record sequence number - * (entering MAC computation) in the 8 bytes before ssl->in_hdr, - * and the caller has to make sure there's space for this. - */ - -static void ssl_update_in_pointers( mbedtls_ssl_context *ssl, - mbedtls_ssl_transform *transform ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ssl->in_ctr = ssl->in_hdr + 3; - ssl->in_len = ssl->in_hdr + 11; - ssl->in_iv = ssl->in_hdr + 13; - } - else -#endif - { - ssl->in_ctr = ssl->in_hdr - 8; - ssl->in_len = ssl->in_hdr + 3; - ssl->in_iv = ssl->in_hdr + 5; - } - - /* Offset in_msg from in_iv to allow space for explicit IV, if used. */ - if( transform != NULL && - ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) - { - ssl->in_msg = ssl->in_iv + transform->ivlen - transform->fixed_ivlen; - } - else - ssl->in_msg = ssl->in_iv; -} - -/* - * Initialize an SSL context - */ -void mbedtls_ssl_init( mbedtls_ssl_context *ssl ) -{ - memset( ssl, 0, sizeof( mbedtls_ssl_context ) ); -} - -/* - * Setup an SSL context - */ - -static void ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl ) -{ - /* Set the incoming and outgoing record pointers. */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - ssl->out_hdr = ssl->out_buf; - ssl->in_hdr = ssl->in_buf; - } - else -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - { - ssl->out_hdr = ssl->out_buf + 8; - ssl->in_hdr = ssl->in_buf + 8; - } - - /* Derive other internal pointers. */ - ssl_update_out_pointers( ssl, NULL /* no transform enabled */ ); - ssl_update_in_pointers ( ssl, NULL /* no transform enabled */ ); -} - -int mbedtls_ssl_setup( mbedtls_ssl_context *ssl, - const mbedtls_ssl_config *conf ) -{ - int ret; - - ssl->conf = conf; - - /* - * Prepare base structures - */ - - /* Set to NULL in case of an error condition */ - ssl->out_buf = NULL; - - ssl->in_buf = mbedtls_calloc( 1, MBEDTLS_SSL_IN_BUFFER_LEN ); - if( ssl->in_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", MBEDTLS_SSL_IN_BUFFER_LEN) ); - ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; - goto error; - } - - ssl->out_buf = mbedtls_calloc( 1, MBEDTLS_SSL_OUT_BUFFER_LEN ); - if( ssl->out_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", MBEDTLS_SSL_OUT_BUFFER_LEN) ); - ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; - goto error; - } - - ssl_reset_in_out_pointers( ssl ); - - if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) - goto error; - - return( 0 ); - -error: - mbedtls_free( ssl->in_buf ); - mbedtls_free( ssl->out_buf ); - - ssl->conf = NULL; - - ssl->in_buf = NULL; - ssl->out_buf = NULL; - - ssl->in_hdr = NULL; - ssl->in_ctr = NULL; - ssl->in_len = NULL; - ssl->in_iv = NULL; - ssl->in_msg = NULL; - - ssl->out_hdr = NULL; - ssl->out_ctr = NULL; - ssl->out_len = NULL; - ssl->out_iv = NULL; - ssl->out_msg = NULL; - - return( ret ); -} - -/* - * Reset an initialized and used SSL context for re-use while retaining - * all application-set variables, function pointers and data. - * - * If partial is non-zero, keep data in the input buffer and client ID. - * (Use when a DTLS client reconnects from the same port.) - */ -static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) -{ - int ret; - -#if !defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) || \ - !defined(MBEDTLS_SSL_SRV_C) - ((void) partial); -#endif - - ssl->state = MBEDTLS_SSL_HELLO_REQUEST; - - /* Cancel any possibly running timer */ - ssl_set_timer( ssl, 0 ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ssl->renego_status = MBEDTLS_SSL_INITIAL_HANDSHAKE; - ssl->renego_records_seen = 0; - - ssl->verify_data_len = 0; - memset( ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN ); - memset( ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN ); -#endif - ssl->secure_renegotiation = MBEDTLS_SSL_LEGACY_RENEGOTIATION; - - ssl->in_offt = NULL; - ssl_reset_in_out_pointers( ssl ); - - ssl->in_msgtype = 0; - ssl->in_msglen = 0; -#if defined(MBEDTLS_SSL_PROTO_DTLS) - ssl->next_record_offset = 0; - ssl->in_epoch = 0; -#endif -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - ssl_dtls_replay_reset( ssl ); -#endif - - ssl->in_hslen = 0; - ssl->nb_zero = 0; - - ssl->keep_current_message = 0; - - ssl->out_msgtype = 0; - ssl->out_msglen = 0; - ssl->out_left = 0; -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) - if( ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED ) - ssl->split_done = 0; -#endif - - memset( ssl->cur_out_ctr, 0, sizeof( ssl->cur_out_ctr ) ); - - ssl->transform_in = NULL; - ssl->transform_out = NULL; - - ssl->session_in = NULL; - ssl->session_out = NULL; - - memset( ssl->out_buf, 0, MBEDTLS_SSL_OUT_BUFFER_LEN ); - -#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) - if( partial == 0 ) -#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */ - { - ssl->in_left = 0; - memset( ssl->in_buf, 0, MBEDTLS_SSL_IN_BUFFER_LEN ); - } - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_reset != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_reset()" ) ); - if( ( ret = mbedtls_ssl_hw_record_reset( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_reset", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - } -#endif - - if( ssl->transform ) - { - mbedtls_ssl_transform_free( ssl->transform ); - mbedtls_free( ssl->transform ); - ssl->transform = NULL; - } - - if( ssl->session ) - { - mbedtls_ssl_session_free( ssl->session ); - mbedtls_free( ssl->session ); - ssl->session = NULL; - } - -#if defined(MBEDTLS_SSL_ALPN) - ssl->alpn_chosen = NULL; -#endif - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) -#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) - if( partial == 0 ) -#endif - { - mbedtls_free( ssl->cli_id ); - ssl->cli_id = NULL; - ssl->cli_id_len = 0; - } -#endif - - if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) - return( ret ); - - return( 0 ); -} - -/* - * Reset an initialized and used SSL context for re-use while retaining - * all application-set variables, function pointers and data. - */ -int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl ) -{ - return( ssl_session_reset_int( ssl, 0 ) ); -} - -/* - * SSL set accessors - */ -void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint ) -{ - conf->endpoint = endpoint; -} - -void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport ) -{ - conf->transport = transport; -} - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) -void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode ) -{ - conf->anti_replay = mode; -} -#endif - -#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) -void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit ) -{ - conf->badmac_limit = limit; -} -#endif - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - -void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *ssl, - unsigned allow_packing ) -{ - ssl->disable_datagram_packing = !allow_packing; -} - -void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf, - uint32_t min, uint32_t max ) -{ - conf->hs_timeout_min = min; - conf->hs_timeout_max = max; -} -#endif - -void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode ) -{ - conf->authmode = authmode; -} - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) -{ - conf->f_vrfy = f_vrfy; - conf->p_vrfy = p_vrfy; -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ) -{ - conf->f_rng = f_rng; - conf->p_rng = p_rng; -} - -void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf, - void (*f_dbg)(void *, int, const char *, int, const char *), - void *p_dbg ) -{ - conf->f_dbg = f_dbg; - conf->p_dbg = p_dbg; -} - -void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl, - void *p_bio, - mbedtls_ssl_send_t *f_send, - mbedtls_ssl_recv_t *f_recv, - mbedtls_ssl_recv_timeout_t *f_recv_timeout ) -{ - ssl->p_bio = p_bio; - ssl->f_send = f_send; - ssl->f_recv = f_recv; - ssl->f_recv_timeout = f_recv_timeout; -} - -#if defined(MBEDTLS_SSL_PROTO_DTLS) -void mbedtls_ssl_set_mtu( mbedtls_ssl_context *ssl, uint16_t mtu ) -{ - ssl->mtu = mtu; -} -#endif - -void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout ) -{ - conf->read_timeout = timeout; -} - -void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl, - void *p_timer, - mbedtls_ssl_set_timer_t *f_set_timer, - mbedtls_ssl_get_timer_t *f_get_timer ) -{ - ssl->p_timer = p_timer; - ssl->f_set_timer = f_set_timer; - ssl->f_get_timer = f_get_timer; - - /* Make sure we start with no timer running */ - ssl_set_timer( ssl, 0 ); -} - -#if defined(MBEDTLS_SSL_SRV_C) -void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf, - void *p_cache, - int (*f_get_cache)(void *, mbedtls_ssl_session *), - int (*f_set_cache)(void *, const mbedtls_ssl_session *) ) -{ - conf->p_cache = p_cache; - conf->f_get_cache = f_get_cache; - conf->f_set_cache = f_set_cache; -} -#endif /* MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_CLI_C) -int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session ) -{ - int ret; - - if( ssl == NULL || - session == NULL || - ssl->session_negotiate == NULL || - ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - if( ( ret = mbedtls_ssl_session_copy( ssl->session_negotiate, - session ) ) != 0 ) - return( ret ); - - ssl->handshake->resume = 1; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_CLI_C */ - -void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf, - const int *ciphersuites ) -{ - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = ciphersuites; - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = ciphersuites; - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = ciphersuites; - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = ciphersuites; -} - -void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf, - const int *ciphersuites, - int major, int minor ) -{ - if( major != MBEDTLS_SSL_MAJOR_VERSION_3 ) - return; - - if( minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3 ) - return; - - conf->ciphersuite_list[minor] = ciphersuites; -} - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf, - const mbedtls_x509_crt_profile *profile ) -{ - conf->cert_profile = profile; -} - -/* Append a new keycert entry to a (possibly empty) list */ -static int ssl_append_key_cert( mbedtls_ssl_key_cert **head, - mbedtls_x509_crt *cert, - mbedtls_pk_context *key ) -{ - mbedtls_ssl_key_cert *new_cert; - - new_cert = mbedtls_calloc( 1, sizeof( mbedtls_ssl_key_cert ) ); - if( new_cert == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - new_cert->cert = cert; - new_cert->key = key; - new_cert->next = NULL; - - /* Update head is the list was null, else add to the end */ - if( *head == NULL ) - { - *head = new_cert; - } - else - { - mbedtls_ssl_key_cert *cur = *head; - while( cur->next != NULL ) - cur = cur->next; - cur->next = new_cert; - } - - return( 0 ); -} - -int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf, - mbedtls_x509_crt *own_cert, - mbedtls_pk_context *pk_key ) -{ - return( ssl_append_key_cert( &conf->key_cert, own_cert, pk_key ) ); -} - -void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf, - mbedtls_x509_crt *ca_chain, - mbedtls_x509_crl *ca_crl ) -{ - conf->ca_chain = ca_chain; - conf->ca_crl = ca_crl; - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - /* mbedtls_ssl_conf_ca_chain() and mbedtls_ssl_conf_ca_cb() - * cannot be used together. */ - conf->f_ca_cb = NULL; - conf->p_ca_cb = NULL; -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ -} - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) -void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *conf, - mbedtls_x509_crt_ca_cb_t f_ca_cb, - void *p_ca_cb ) -{ - conf->f_ca_cb = f_ca_cb; - conf->p_ca_cb = p_ca_cb; - - /* mbedtls_ssl_conf_ca_chain() and mbedtls_ssl_conf_ca_cb() - * cannot be used together. */ - conf->ca_chain = NULL; - conf->ca_crl = NULL; -} -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) -int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *own_cert, - mbedtls_pk_context *pk_key ) -{ - return( ssl_append_key_cert( &ssl->handshake->sni_key_cert, - own_cert, pk_key ) ); -} - -void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *ca_chain, - mbedtls_x509_crl *ca_crl ) -{ - ssl->handshake->sni_ca_chain = ca_chain; - ssl->handshake->sni_ca_crl = ca_crl; -} - -void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl, - int authmode ) -{ - ssl->handshake->sni_authmode = authmode; -} -#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -void mbedtls_ssl_set_verify( mbedtls_ssl_context *ssl, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) -{ - ssl->f_vrfy = f_vrfy; - ssl->p_vrfy = p_vrfy; -} -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) -/* - * Set EC J-PAKE password for current handshake - */ -int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl, - const unsigned char *pw, - size_t pw_len ) -{ - mbedtls_ecjpake_role role; - - if( ssl->handshake == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - role = MBEDTLS_ECJPAKE_SERVER; - else - role = MBEDTLS_ECJPAKE_CLIENT; - - return( mbedtls_ecjpake_setup( &ssl->handshake->ecjpake_ctx, - role, - MBEDTLS_MD_SHA256, - MBEDTLS_ECP_DP_SECP256R1, - pw, pw_len ) ); -} -#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - -static void ssl_conf_remove_psk( mbedtls_ssl_config *conf ) -{ - /* Remove reference to existing PSK, if any. */ -#if defined(MBEDTLS_USE_PSA_CRYPTO) - if( conf->psk_opaque != 0 ) - { - /* The maintenance of the PSK key slot is the - * user's responsibility. */ - conf->psk_opaque = 0; - } - /* This and the following branch should never - * be taken simultaenously as we maintain the - * invariant that raw and opaque PSKs are never - * configured simultaneously. As a safeguard, - * though, `else` is omitted here. */ -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( conf->psk != NULL ) - { - mbedtls_platform_zeroize( conf->psk, conf->psk_len ); - - mbedtls_free( conf->psk ); - conf->psk = NULL; - conf->psk_len = 0; - } - - /* Remove reference to PSK identity, if any. */ - if( conf->psk_identity != NULL ) - { - mbedtls_free( conf->psk_identity ); - conf->psk_identity = NULL; - conf->psk_identity_len = 0; - } -} - -/* This function assumes that PSK identity in the SSL config is unset. - * It checks that the provided identity is well-formed and attempts - * to make a copy of it in the SSL config. - * On failure, the PSK identity in the config remains unset. */ -static int ssl_conf_set_psk_identity( mbedtls_ssl_config *conf, - unsigned char const *psk_identity, - size_t psk_identity_len ) -{ - /* Identity len will be encoded on two bytes */ - if( psk_identity == NULL || - ( psk_identity_len >> 16 ) != 0 || - psk_identity_len > MBEDTLS_SSL_OUT_CONTENT_LEN ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - conf->psk_identity = mbedtls_calloc( 1, psk_identity_len ); - if( conf->psk_identity == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - conf->psk_identity_len = psk_identity_len; - memcpy( conf->psk_identity, psk_identity, conf->psk_identity_len ); - - return( 0 ); -} - -int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf, - const unsigned char *psk, size_t psk_len, - const unsigned char *psk_identity, size_t psk_identity_len ) -{ - int ret; - /* Remove opaque/raw PSK + PSK Identity */ - ssl_conf_remove_psk( conf ); - - /* Check and set raw PSK */ - if( psk == NULL || psk_len > MBEDTLS_PSK_MAX_LEN ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - if( ( conf->psk = mbedtls_calloc( 1, psk_len ) ) == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - conf->psk_len = psk_len; - memcpy( conf->psk, psk, conf->psk_len ); - - /* Check and set PSK Identity */ - ret = ssl_conf_set_psk_identity( conf, psk_identity, psk_identity_len ); - if( ret != 0 ) - ssl_conf_remove_psk( conf ); - - return( ret ); -} - -static void ssl_remove_psk( mbedtls_ssl_context *ssl ) -{ -#if defined(MBEDTLS_USE_PSA_CRYPTO) - if( ssl->handshake->psk_opaque != 0 ) - { - ssl->handshake->psk_opaque = 0; - } - else -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ssl->handshake->psk != NULL ) - { - mbedtls_platform_zeroize( ssl->handshake->psk, - ssl->handshake->psk_len ); - mbedtls_free( ssl->handshake->psk ); - ssl->handshake->psk_len = 0; - } -} - -int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl, - const unsigned char *psk, size_t psk_len ) -{ - if( psk == NULL || ssl->handshake == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( psk_len > MBEDTLS_PSK_MAX_LEN ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - ssl_remove_psk( ssl ); - - if( ( ssl->handshake->psk = mbedtls_calloc( 1, psk_len ) ) == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - ssl->handshake->psk_len = psk_len; - memcpy( ssl->handshake->psk, psk, ssl->handshake->psk_len ); - - return( 0 ); -} - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf, - psa_key_handle_t psk_slot, - const unsigned char *psk_identity, - size_t psk_identity_len ) -{ - int ret; - /* Clear opaque/raw PSK + PSK Identity, if present. */ - ssl_conf_remove_psk( conf ); - - /* Check and set opaque PSK */ - if( psk_slot == 0 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - conf->psk_opaque = psk_slot; - - /* Check and set PSK Identity */ - ret = ssl_conf_set_psk_identity( conf, psk_identity, - psk_identity_len ); - if( ret != 0 ) - ssl_conf_remove_psk( conf ); - - return( ret ); -} - -int mbedtls_ssl_set_hs_psk_opaque( mbedtls_ssl_context *ssl, - psa_key_handle_t psk_slot ) -{ - if( psk_slot == 0 || ssl->handshake == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - ssl_remove_psk( ssl ); - ssl->handshake->psk_opaque = psk_slot; - return( 0 ); -} -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf, - int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, - size_t), - void *p_psk ) -{ - conf->f_psk = f_psk; - conf->p_psk = p_psk; -} -#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ - -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) - -#if !defined(MBEDTLS_DEPRECATED_REMOVED) -int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G ) -{ - int ret; - - if( ( ret = mbedtls_mpi_read_string( &conf->dhm_P, 16, dhm_P ) ) != 0 || - ( ret = mbedtls_mpi_read_string( &conf->dhm_G, 16, dhm_G ) ) != 0 ) - { - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); - return( ret ); - } - - return( 0 ); -} -#endif /* MBEDTLS_DEPRECATED_REMOVED */ - -int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf, - const unsigned char *dhm_P, size_t P_len, - const unsigned char *dhm_G, size_t G_len ) -{ - int ret; - - if( ( ret = mbedtls_mpi_read_binary( &conf->dhm_P, dhm_P, P_len ) ) != 0 || - ( ret = mbedtls_mpi_read_binary( &conf->dhm_G, dhm_G, G_len ) ) != 0 ) - { - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); - return( ret ); - } - - return( 0 ); -} - -int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx ) -{ - int ret; - - if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 || - ( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 ) - { - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); - return( ret ); - } - - return( 0 ); -} -#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) -/* - * Set the minimum length for Diffie-Hellman parameters - */ -void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf, - unsigned int bitlen ) -{ - conf->dhm_min_bitlen = bitlen; -} -#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -/* - * Set allowed/preferred hashes for handshake signatures - */ -void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf, - const int *hashes ) -{ - conf->sig_hashes = hashes; -} -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -#if defined(MBEDTLS_ECP_C) -/* - * Set the allowed elliptic curves - */ -void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf, - const mbedtls_ecp_group_id *curve_list ) -{ - conf->curve_list = curve_list; -} -#endif /* MBEDTLS_ECP_C */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname ) -{ - /* Initialize to suppress unnecessary compiler warning */ - size_t hostname_len = 0; - - /* Check if new hostname is valid before - * making any change to current one */ - if( hostname != NULL ) - { - hostname_len = strlen( hostname ); - - if( hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - /* Now it's clear that we will overwrite the old hostname, - * so we can free it safely */ - - if( ssl->hostname != NULL ) - { - mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) ); - mbedtls_free( ssl->hostname ); - } - - /* Passing NULL as hostname shall clear the old one */ - - if( hostname == NULL ) - { - ssl->hostname = NULL; - } - else - { - ssl->hostname = mbedtls_calloc( 1, hostname_len + 1 ); - if( ssl->hostname == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); - - memcpy( ssl->hostname, hostname, hostname_len ); - - ssl->hostname[hostname_len] = '\0'; - } - - return( 0 ); -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) -void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf, - int (*f_sni)(void *, mbedtls_ssl_context *, - const unsigned char *, size_t), - void *p_sni ) -{ - conf->f_sni = f_sni; - conf->p_sni = p_sni; -} -#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ - -#if defined(MBEDTLS_SSL_ALPN) -int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos ) -{ - size_t cur_len, tot_len; - const char **p; - - /* - * RFC 7301 3.1: "Empty strings MUST NOT be included and byte strings - * MUST NOT be truncated." - * We check lengths now rather than later. - */ - tot_len = 0; - for( p = protos; *p != NULL; p++ ) - { - cur_len = strlen( *p ); - tot_len += cur_len; - - if( cur_len == 0 || cur_len > 255 || tot_len > 65535 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - conf->alpn_list = protos; - - return( 0 ); -} - -const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl ) -{ - return( ssl->alpn_chosen ); -} -#endif /* MBEDTLS_SSL_ALPN */ - -void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor ) -{ - conf->max_major_ver = major; - conf->max_minor_ver = minor; -} - -void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor ) -{ - conf->min_major_ver = major; - conf->min_minor_ver = minor; -} - -#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C) -void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback ) -{ - conf->fallback = fallback; -} -#endif - -#if defined(MBEDTLS_SSL_SRV_C) -void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf, - char cert_req_ca_list ) -{ - conf->cert_req_ca_list = cert_req_ca_list; -} -#endif - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) -void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm ) -{ - conf->encrypt_then_mac = etm; -} -#endif - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) -void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems ) -{ - conf->extended_ms = ems; -} -#endif - -#if defined(MBEDTLS_ARC4_C) -void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 ) -{ - conf->arc4_disabled = arc4; -} -#endif - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code ) -{ - if( mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID || - ssl_mfl_code_to_length( mfl_code ) > MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - conf->mfl_code = mfl_code; - - return( 0 ); -} -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) -void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate ) -{ - conf->trunc_hmac = truncate; -} -#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ - -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) -void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split ) -{ - conf->cbc_record_splitting = split; -} -#endif - -void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy ) -{ - conf->allow_legacy_renegotiation = allow_legacy; -} - -#if defined(MBEDTLS_SSL_RENEGOTIATION) -void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation ) -{ - conf->disable_renegotiation = renegotiation; -} - -void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records ) -{ - conf->renego_max_records = max_records; -} - -void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf, - const unsigned char period[8] ) -{ - memcpy( conf->renego_period, period, 8 ); -} -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) -#if defined(MBEDTLS_SSL_CLI_C) -void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets ) -{ - conf->session_tickets = use_tickets; -} -#endif - -#if defined(MBEDTLS_SSL_SRV_C) -void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_ticket_write_t *f_ticket_write, - mbedtls_ssl_ticket_parse_t *f_ticket_parse, - void *p_ticket ) -{ - conf->f_ticket_write = f_ticket_write; - conf->f_ticket_parse = f_ticket_parse; - conf->p_ticket = p_ticket; -} -#endif -#endif /* MBEDTLS_SSL_SESSION_TICKETS */ - -#if defined(MBEDTLS_SSL_EXPORT_KEYS) -void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_export_keys_t *f_export_keys, - void *p_export_keys ) -{ - conf->f_export_keys = f_export_keys; - conf->p_export_keys = p_export_keys; -} -#endif - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) -void mbedtls_ssl_conf_async_private_cb( - mbedtls_ssl_config *conf, - mbedtls_ssl_async_sign_t *f_async_sign, - mbedtls_ssl_async_decrypt_t *f_async_decrypt, - mbedtls_ssl_async_resume_t *f_async_resume, - mbedtls_ssl_async_cancel_t *f_async_cancel, - void *async_config_data ) -{ - conf->f_async_sign_start = f_async_sign; - conf->f_async_decrypt_start = f_async_decrypt; - conf->f_async_resume = f_async_resume; - conf->f_async_cancel = f_async_cancel; - conf->p_async_config_data = async_config_data; -} - -void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config *conf ) -{ - return( conf->p_async_config_data ); -} - -void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context *ssl ) -{ - if( ssl->handshake == NULL ) - return( NULL ); - else - return( ssl->handshake->user_async_ctx ); -} - -void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *ssl, - void *ctx ) -{ - if( ssl->handshake != NULL ) - ssl->handshake->user_async_ctx = ctx; -} -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - -/* - * SSL get accessors - */ -size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl ) -{ - return( ssl->in_offt == NULL ? 0 : ssl->in_msglen ); -} - -int mbedtls_ssl_check_pending( const mbedtls_ssl_context *ssl ) -{ - /* - * Case A: We're currently holding back - * a message for further processing. - */ - - if( ssl->keep_current_message == 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: record held back for processing" ) ); - return( 1 ); - } - - /* - * Case B: Further records are pending in the current datagram. - */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->in_left > ssl->next_record_offset ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more records within current datagram" ) ); - return( 1 ); - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - - /* - * Case C: A handshake message is being processed. - */ - - if( ssl->in_hslen > 0 && ssl->in_hslen < ssl->in_msglen ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more handshake messages within current record" ) ); - return( 1 ); - } - - /* - * Case D: An application data message is being processed - */ - if( ssl->in_offt != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: application data record is being processed" ) ); - return( 1 ); - } - - /* - * In all other cases, the rest of the message can be dropped. - * As in ssl_get_next_record, this needs to be adapted if - * we implement support for multiple alerts in single records. - */ - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: nothing pending" ) ); - return( 0 ); -} - -uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl ) -{ - if( ssl->session != NULL ) - return( ssl->session->verify_result ); - - if( ssl->session_negotiate != NULL ) - return( ssl->session_negotiate->verify_result ); - - return( 0xFFFFFFFF ); -} - -const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl ) -{ - if( ssl == NULL || ssl->session == NULL ) - return( NULL ); - - return mbedtls_ssl_get_ciphersuite_name( ssl->session->ciphersuite ); -} - -const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - switch( ssl->minor_ver ) - { - case MBEDTLS_SSL_MINOR_VERSION_2: - return( "DTLSv1.0" ); - - case MBEDTLS_SSL_MINOR_VERSION_3: - return( "DTLSv1.2" ); - - default: - return( "unknown (DTLS)" ); - } - } -#endif - - switch( ssl->minor_ver ) - { - case MBEDTLS_SSL_MINOR_VERSION_0: - return( "SSLv3.0" ); - - case MBEDTLS_SSL_MINOR_VERSION_1: - return( "TLSv1.0" ); - - case MBEDTLS_SSL_MINOR_VERSION_2: - return( "TLSv1.1" ); - - case MBEDTLS_SSL_MINOR_VERSION_3: - return( "TLSv1.2" ); - - default: - return( "unknown" ); - } -} - -int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl ) -{ - size_t transform_expansion = 0; - const mbedtls_ssl_transform *transform = ssl->transform_out; - unsigned block_size; - - if( transform == NULL ) - return( (int) mbedtls_ssl_hdr_len( ssl ) ); - -#if defined(MBEDTLS_ZLIB_SUPPORT) - if( ssl->session_out->compression != MBEDTLS_SSL_COMPRESS_NULL ) - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); -#endif - - switch( mbedtls_cipher_get_cipher_mode( &transform->cipher_ctx_enc ) ) - { - case MBEDTLS_MODE_GCM: - case MBEDTLS_MODE_CCM: - case MBEDTLS_MODE_CHACHAPOLY: - case MBEDTLS_MODE_STREAM: - transform_expansion = transform->minlen; - break; - - case MBEDTLS_MODE_CBC: - - block_size = mbedtls_cipher_get_block_size( - &transform->cipher_ctx_enc ); - - /* Expansion due to the addition of the MAC. */ - transform_expansion += transform->maclen; - - /* Expansion due to the addition of CBC padding; - * Theoretically up to 256 bytes, but we never use - * more than the block size of the underlying cipher. */ - transform_expansion += block_size; - - /* For TLS 1.1 or higher, an explicit IV is added - * after the record header. */ -#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 ) - transform_expansion += block_size; -#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */ - - break; - - default: - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - - return( (int)( mbedtls_ssl_hdr_len( ssl ) + transform_expansion ) ); -} - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl ) -{ - size_t max_len; - - /* - * Assume mfl_code is correct since it was checked when set - */ - max_len = ssl_mfl_code_to_length( ssl->conf->mfl_code ); - - /* Check if a smaller max length was negotiated */ - if( ssl->session_out != NULL && - ssl_mfl_code_to_length( ssl->session_out->mfl_code ) < max_len ) - { - max_len = ssl_mfl_code_to_length( ssl->session_out->mfl_code ); - } - - /* During a handshake, use the value being negotiated */ - if( ssl->session_negotiate != NULL && - ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ) < max_len ) - { - max_len = ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ); - } - - return( max_len ); -} -#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) -static size_t ssl_get_current_mtu( const mbedtls_ssl_context *ssl ) -{ - /* Return unlimited mtu for client hello messages to avoid fragmentation. */ - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && - ( ssl->state == MBEDTLS_SSL_CLIENT_HELLO || - ssl->state == MBEDTLS_SSL_SERVER_HELLO ) ) - return ( 0 ); - - if( ssl->handshake == NULL || ssl->handshake->mtu == 0 ) - return( ssl->mtu ); - - if( ssl->mtu == 0 ) - return( ssl->handshake->mtu ); - - return( ssl->mtu < ssl->handshake->mtu ? - ssl->mtu : ssl->handshake->mtu ); -} -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl ) -{ - size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN; - -#if !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) && \ - !defined(MBEDTLS_SSL_PROTO_DTLS) - (void) ssl; -#endif - -#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - const size_t mfl = mbedtls_ssl_get_max_frag_len( ssl ); - - if( max_len > mfl ) - max_len = mfl; -#endif - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl_get_current_mtu( ssl ) != 0 ) - { - const size_t mtu = ssl_get_current_mtu( ssl ); - const int ret = mbedtls_ssl_get_record_expansion( ssl ); - const size_t overhead = (size_t) ret; - - if( ret < 0 ) - return( ret ); - - if( mtu <= overhead ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "MTU too low for record expansion" ) ); - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); - } - - if( max_len > mtu - overhead ) - max_len = mtu - overhead; - } -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -#if !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) && \ - !defined(MBEDTLS_SSL_PROTO_DTLS) - ((void) ssl); -#endif - - return( (int) max_len ); -} - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl ) -{ - if( ssl == NULL || ssl->session == NULL ) - return( NULL ); - -#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - return( ssl->session->peer_cert ); -#else - return( NULL ); -#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_CLI_C) -int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl, - mbedtls_ssl_session *dst ) -{ - if( ssl == NULL || - dst == NULL || - ssl->session == NULL || - ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - - return( mbedtls_ssl_session_copy( dst, ssl->session ) ); -} -#endif /* MBEDTLS_SSL_CLI_C */ - -/* - * Perform a single step of the SSL handshake - */ -int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - -#if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - ret = mbedtls_ssl_handshake_client_step( ssl ); -#endif -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - ret = mbedtls_ssl_handshake_server_step( ssl ); -#endif - - return( ret ); -} - -/* - * Perform the SSL handshake - */ -int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl ) -{ - int ret = 0; - - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> handshake" ) ); - - while( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - { - ret = mbedtls_ssl_handshake_step( ssl ); - - if( ret != 0 ) - break; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= handshake" ) ); - - return( ret ); -} - -#if defined(MBEDTLS_SSL_RENEGOTIATION) -#if defined(MBEDTLS_SSL_SRV_C) -/* - * Write HelloRequest to request renegotiation on server - */ -static int ssl_write_hello_request( mbedtls_ssl_context *ssl ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello request" ) ); - - ssl->out_msglen = 4; - ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; - ssl->out_msg[0] = MBEDTLS_SSL_HS_HELLO_REQUEST; - - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello request" ) ); - - return( 0 ); -} -#endif /* MBEDTLS_SSL_SRV_C */ - -/* - * Actually renegotiate current connection, triggered by either: - * - any side: calling mbedtls_ssl_renegotiate(), - * - client: receiving a HelloRequest during mbedtls_ssl_read(), - * - server: receiving any handshake message on server during mbedtls_ssl_read() after - * the initial handshake is completed. - * If the handshake doesn't complete due to waiting for I/O, it will continue - * during the next calls to mbedtls_ssl_renegotiate() or mbedtls_ssl_read() respectively. - */ -static int ssl_start_renegotiation( mbedtls_ssl_context *ssl ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> renegotiate" ) ); - - if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) - return( ret ); - - /* RFC 6347 4.2.2: "[...] the HelloRequest will have message_seq = 0 and - * the ServerHello will have message_seq = 1" */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) - { - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - ssl->handshake->out_msg_seq = 1; - else - ssl->handshake->in_msg_seq = 1; - } -#endif - - ssl->state = MBEDTLS_SSL_HELLO_REQUEST; - ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS; - - if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); - return( ret ); - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= renegotiate" ) ); - - return( 0 ); -} - -/* - * Renegotiate current connection on client, - * or request renegotiation on server - */ -int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl ) -{ - int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - -#if defined(MBEDTLS_SSL_SRV_C) - /* On server, just send the request */ - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - { - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING; - - /* Did we already try/start sending HelloRequest? */ - if( ssl->out_left != 0 ) - return( mbedtls_ssl_flush_output( ssl ) ); - - return( ssl_write_hello_request( ssl ) ); - } -#endif /* MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_CLI_C) - /* - * On client, either start the renegotiation process or, - * if already in progress, continue the handshake - */ - if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( ( ret = ssl_start_renegotiation( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret ); - return( ret ); - } - } - else - { - if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); - return( ret ); - } - } -#endif /* MBEDTLS_SSL_CLI_C */ - - return( ret ); -} - -/* - * Check record counters and renegotiate if they're above the limit. - */ -static int ssl_check_ctr_renegotiate( mbedtls_ssl_context *ssl ) -{ - size_t ep_len = ssl_ep_len( ssl ); - int in_ctr_cmp; - int out_ctr_cmp; - - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER || - ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING || - ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED ) - { - return( 0 ); - } - - in_ctr_cmp = memcmp( ssl->in_ctr + ep_len, - ssl->conf->renego_period + ep_len, 8 - ep_len ); - out_ctr_cmp = memcmp( ssl->cur_out_ctr + ep_len, - ssl->conf->renego_period + ep_len, 8 - ep_len ); - - if( in_ctr_cmp <= 0 && out_ctr_cmp <= 0 ) - { - return( 0 ); - } - - MBEDTLS_SSL_DEBUG_MSG( 1, ( "record counter limit reached: renegotiate" ) ); - return( mbedtls_ssl_renegotiate( ssl ) ); -} -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - -/* - * Receive application data decrypted from the SSL layer - */ -int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len ) -{ - int ret; - size_t n; - - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read" ) ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - return( ret ); - - if( ssl->handshake != NULL && - ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING ) - { - if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - return( ret ); - } - } -#endif - - /* - * Check if renegotiation is necessary and/or handshake is - * in process. If yes, perform/continue, and fall through - * if an unexpected packet is received while the client - * is waiting for the ServerHello. - * - * (There is no equivalent to the last condition on - * the server-side as it is not treated as within - * a handshake while waiting for the ClientHello - * after a renegotiation request.) - */ - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - ret = ssl_check_ctr_renegotiate( ssl ); - if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO && - ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret ); - return( ret ); - } -#endif - - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - { - ret = mbedtls_ssl_handshake( ssl ); - if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO && - ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); - return( ret ); - } - } - - /* Loop as long as no application data record is available */ - while( ssl->in_offt == NULL ) - { - /* Start timer if not already running */ - if( ssl->f_get_timer != NULL && - ssl->f_get_timer( ssl->p_timer ) == -1 ) - { - ssl_set_timer( ssl, ssl->conf->read_timeout ); - } - - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_SSL_CONN_EOF ) - return( 0 ); - - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - - if( ssl->in_msglen == 0 && - ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA ) - { - /* - * OpenSSL sends empty messages to randomize the IV - */ - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_SSL_CONN_EOF ) - return( 0 ); - - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); - return( ret ); - } - } - - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "received handshake message" ) ); - - /* - * - For client-side, expect SERVER_HELLO_REQUEST. - * - For server-side, expect CLIENT_HELLO. - * - Fail (TLS) or silently drop record (DTLS) in other cases. - */ - -#if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && - ( ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_REQUEST || - ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not HelloRequest)" ) ); - - /* With DTLS, drop the packet (probably from last handshake) */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - continue; - } -#endif - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } -#endif /* MBEDTLS_SSL_CLI_C */ - -#if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && - ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not ClientHello)" ) ); - - /* With DTLS, drop the packet (probably from last handshake) */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - continue; - } -#endif - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } -#endif /* MBEDTLS_SSL_SRV_C */ - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - /* Determine whether renegotiation attempt should be accepted */ - if( ! ( ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED || - ( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION && - ssl->conf->allow_legacy_renegotiation == - MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) ) ) - { - /* - * Accept renegotiation request - */ - - /* DTLS clients need to know renego is server-initiated */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - { - ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING; - } -#endif - ret = ssl_start_renegotiation( ssl ); - if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO && - ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret ); - return( ret ); - } - } - else -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - { - /* - * Refuse renegotiation - */ - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "refusing renegotiation, sending alert" ) ); - -#if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - /* SSLv3 does not have a "no_renegotiation" warning, so - we send a fatal alert and abort the connection. */ - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - else -#endif /* MBEDTLS_SSL_PROTO_SSL3 */ -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 ) - { - if( ( ret = mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_WARNING, - MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) ) != 0 ) - { - return( ret ); - } - } - else -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || - MBEDTLS_SSL_PROTO_TLS1_2 */ - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); - } - } - - /* At this point, we don't know whether the renegotiation has been - * completed or not. The cases to consider are the following: - * 1) The renegotiation is complete. In this case, no new record - * has been read yet. - * 2) The renegotiation is incomplete because the client received - * an application data record while awaiting the ServerHello. - * 3) The renegotiation is incomplete because the client received - * a non-handshake, non-application data message while awaiting - * the ServerHello. - * In each of these case, looping will be the proper action: - * - For 1), the next iteration will read a new record and check - * if it's application data. - * - For 2), the loop condition isn't satisfied as application data - * is present, hence continue is the same as break - * - For 3), the loop condition is satisfied and read_record - * will re-deliver the message that was held back by the client - * when expecting the ServerHello. - */ - continue; - } -#if defined(MBEDTLS_SSL_RENEGOTIATION) - else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) - { - if( ssl->conf->renego_max_records >= 0 ) - { - if( ++ssl->renego_records_seen > ssl->conf->renego_max_records ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, " - "but not honored by client" ) ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - } - } -#endif /* MBEDTLS_SSL_RENEGOTIATION */ - - /* Fatal and closure alerts handled by mbedtls_ssl_read_record() */ - if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "ignoring non-fatal non-closure alert" ) ); - return( MBEDTLS_ERR_SSL_WANT_READ ); - } - - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad application data message" ) ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); - } - - ssl->in_offt = ssl->in_msg; - - /* We're going to return something now, cancel timer, - * except if handshake (renegotiation) is in progress */ - if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) - ssl_set_timer( ssl, 0 ); - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - /* If we requested renego but received AppData, resend HelloRequest. - * Do it now, after setting in_offt, to avoid taking this branch - * again if ssl_write_hello_request() returns WANT_WRITE */ -#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER && - ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) - { - if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret ); - return( ret ); - } - } -#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */ -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - } - - n = ( len < ssl->in_msglen ) - ? len : ssl->in_msglen; - - memcpy( buf, ssl->in_offt, n ); - ssl->in_msglen -= n; - - if( ssl->in_msglen == 0 ) - { - /* all bytes consumed */ - ssl->in_offt = NULL; - ssl->keep_current_message = 0; - } - else - { - /* more data available */ - ssl->in_offt += n; - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read" ) ); - - return( (int) n ); -} - -/* - * Send application data to be encrypted by the SSL layer, taking care of max - * fragment length and buffer size. - * - * According to RFC 5246 Section 6.2.1: - * - * Zero-length fragments of Application data MAY be sent as they are - * potentially useful as a traffic analysis countermeasure. - * - * Therefore, it is possible that the input message length is 0 and the - * corresponding return code is 0 on success. - */ -static int ssl_write_real( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ - int ret = mbedtls_ssl_get_max_out_record_payload( ssl ); - const size_t max_len = (size_t) ret; - - if( ret < 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_get_max_out_record_payload", ret ); - return( ret ); - } - - if( len > max_len ) - { -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "fragment larger than the (negotiated) " - "maximum fragment length: %d > %d", - len, max_len ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - } - else -#endif - len = max_len; - } - - if( ssl->out_left != 0 ) - { - /* - * The user has previously tried to send the data and - * MBEDTLS_ERR_SSL_WANT_WRITE or the message was only partially - * written. In this case, we expect the high-level write function - * (e.g. mbedtls_ssl_write()) to be called with the same parameters - */ - if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret ); - return( ret ); - } - } - else - { - /* - * The user is trying to send a message the first time, so we need to - * copy the data into the internal buffers and setup the data structure - * to keep track of partial writes - */ - ssl->out_msglen = len; - ssl->out_msgtype = MBEDTLS_SSL_MSG_APPLICATION_DATA; - memcpy( ssl->out_msg, buf, len ); - - if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret ); - return( ret ); - } - } - - return( (int) len ); -} - -/* - * Write application data, doing 1/n-1 splitting if necessary. - * - * With non-blocking I/O, ssl_write_real() may return WANT_WRITE, - * then the caller will call us again with the same arguments, so - * remember whether we already did the split or not. - */ -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) -static int ssl_write_split( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) -{ - int ret; - - if( ssl->conf->cbc_record_splitting == - MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED || - len <= 1 || - ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_1 || - mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc ) - != MBEDTLS_MODE_CBC ) - { - return( ssl_write_real( ssl, buf, len ) ); - } - - if( ssl->split_done == 0 ) - { - if( ( ret = ssl_write_real( ssl, buf, 1 ) ) <= 0 ) - return( ret ); - ssl->split_done = 1; - } - - if( ( ret = ssl_write_real( ssl, buf + 1, len - 1 ) ) <= 0 ) - return( ret ); - ssl->split_done = 0; - - return( ret + 1 ); -} -#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */ - -/* - * Write application data (public-facing wrapper) - */ -int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len ) -{ - int ret; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write" ) ); - - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ( ret = ssl_check_ctr_renegotiate( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret ); - return( ret ); - } -#endif - - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - { - if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); - return( ret ); - } - } - -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) - ret = ssl_write_split( ssl, buf, len ); -#else - ret = ssl_write_real( ssl, buf, len ); -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write" ) ); - - return( ret ); -} - -/* - * Notify the peer that the connection is being closed - */ -int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl ) -{ - int ret; - - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write close notify" ) ); - - if( ssl->out_left != 0 ) - return( mbedtls_ssl_flush_output( ssl ) ); - - if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER ) - { - if( ( ret = mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_WARNING, - MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_send_alert_message", ret ); - return( ret ); - } - } - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write close notify" ) ); - - return( 0 ); -} - -void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform ) -{ - if( transform == NULL ) - return; - -#if defined(MBEDTLS_ZLIB_SUPPORT) - deflateEnd( &transform->ctx_deflate ); - inflateEnd( &transform->ctx_inflate ); -#endif - - mbedtls_cipher_free( &transform->cipher_ctx_enc ); - mbedtls_cipher_free( &transform->cipher_ctx_dec ); - - mbedtls_md_free( &transform->md_ctx_enc ); - mbedtls_md_free( &transform->md_ctx_dec ); - - mbedtls_platform_zeroize( transform, sizeof( mbedtls_ssl_transform ) ); -} - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -static void ssl_key_cert_free( mbedtls_ssl_key_cert *key_cert ) -{ - mbedtls_ssl_key_cert *cur = key_cert, *next; - - while( cur != NULL ) - { - next = cur->next; - mbedtls_free( cur ); - cur = next; - } -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - -static void ssl_buffering_free( mbedtls_ssl_context *ssl ) -{ - unsigned offset; - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - - if( hs == NULL ) - return; - - ssl_free_buffered_record( ssl ); - - for( offset = 0; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ ) - ssl_buffering_free_slot( ssl, offset ); -} - -static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl, - uint8_t slot ) -{ - mbedtls_ssl_handshake_params * const hs = ssl->handshake; - mbedtls_ssl_hs_buffer * const hs_buf = &hs->buffering.hs[slot]; - - if( slot >= MBEDTLS_SSL_MAX_BUFFERED_HS ) - return; - - if( hs_buf->is_valid == 1 ) - { - hs->buffering.total_bytes_buffered -= hs_buf->data_len; - mbedtls_platform_zeroize( hs_buf->data, hs_buf->data_len ); - mbedtls_free( hs_buf->data ); - memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) ); - } -} - -#endif /* MBEDTLS_SSL_PROTO_DTLS */ - -void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl ) -{ - mbedtls_ssl_handshake_params *handshake = ssl->handshake; - - if( handshake == NULL ) - return; - -#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - if( ssl->conf->f_async_cancel != NULL && handshake->async_in_progress != 0 ) - { - ssl->conf->f_async_cancel( ssl ); - handshake->async_in_progress = 0; - } -#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_free( &handshake->fin_md5 ); - mbedtls_sha1_free( &handshake->fin_sha1 ); -#endif -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) -#if defined(MBEDTLS_SHA256_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &handshake->fin_sha256_psa ); -#else - mbedtls_sha256_free( &handshake->fin_sha256 ); -#endif -#endif -#if defined(MBEDTLS_SHA512_C) -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &handshake->fin_sha384_psa ); -#else - mbedtls_sha512_free( &handshake->fin_sha512 ); -#endif -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - -#if defined(MBEDTLS_DHM_C) - mbedtls_dhm_free( &handshake->dhm_ctx ); -#endif -#if defined(MBEDTLS_ECDH_C) - mbedtls_ecdh_free( &handshake->ecdh_ctx ); -#endif -#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - mbedtls_ecjpake_free( &handshake->ecjpake_ctx ); -#if defined(MBEDTLS_SSL_CLI_C) - mbedtls_free( handshake->ecjpake_cache ); - handshake->ecjpake_cache = NULL; - handshake->ecjpake_cache_len = 0; -#endif -#endif - -#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ - defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - /* explicit void pointer cast for buggy MS compiler */ - mbedtls_free( (void *) handshake->curves ); -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - if( handshake->psk != NULL ) - { - mbedtls_platform_zeroize( handshake->psk, handshake->psk_len ); - mbedtls_free( handshake->psk ); - } -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - /* - * Free only the linked list wrapper, not the keys themselves - * since the belong to the SNI callback - */ - if( handshake->sni_key_cert != NULL ) - { - mbedtls_ssl_key_cert *cur = handshake->sni_key_cert, *next; - - while( cur != NULL ) - { - next = cur->next; - mbedtls_free( cur ); - cur = next; - } - } -#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_SERVER_NAME_INDICATION */ - -#if defined(MBEDTLS_SSL__ECP_RESTARTABLE) - mbedtls_x509_crt_restart_free( &handshake->ecrs_ctx ); - if( handshake->ecrs_peer_cert != NULL ) - { - mbedtls_x509_crt_free( handshake->ecrs_peer_cert ); - mbedtls_free( handshake->ecrs_peer_cert ); - } -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) && \ - !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_pk_free( &handshake->peer_pubkey ); -#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - mbedtls_free( handshake->verify_cookie ); - ssl_flight_free( handshake->flight ); - ssl_buffering_free( ssl ); -#endif - -#if defined(MBEDTLS_ECDH_C) && \ - defined(MBEDTLS_USE_PSA_CRYPTO) - psa_destroy_key( handshake->ecdh_psa_privkey ); -#endif /* MBEDTLS_ECDH_C && MBEDTLS_USE_PSA_CRYPTO */ - - mbedtls_platform_zeroize( handshake, - sizeof( mbedtls_ssl_handshake_params ) ); -} - -void mbedtls_ssl_session_free( mbedtls_ssl_session *session ) -{ - if( session == NULL ) - return; - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - ssl_clear_peer_cert( session ); -#endif - -#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) - mbedtls_free( session->ticket ); -#endif - - mbedtls_platform_zeroize( session, sizeof( mbedtls_ssl_session ) ); -} - -/* - * Free an SSL context - */ -void mbedtls_ssl_free( mbedtls_ssl_context *ssl ) -{ - if( ssl == NULL ) - return; - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> free" ) ); - - if( ssl->out_buf != NULL ) - { - mbedtls_platform_zeroize( ssl->out_buf, MBEDTLS_SSL_OUT_BUFFER_LEN ); - mbedtls_free( ssl->out_buf ); - } - - if( ssl->in_buf != NULL ) - { - mbedtls_platform_zeroize( ssl->in_buf, MBEDTLS_SSL_IN_BUFFER_LEN ); - mbedtls_free( ssl->in_buf ); - } - -#if defined(MBEDTLS_ZLIB_SUPPORT) - if( ssl->compress_buf != NULL ) - { - mbedtls_platform_zeroize( ssl->compress_buf, MBEDTLS_SSL_COMPRESS_BUFFER_LEN ); - mbedtls_free( ssl->compress_buf ); - } -#endif - - if( ssl->transform ) - { - mbedtls_ssl_transform_free( ssl->transform ); - mbedtls_free( ssl->transform ); - } - - if( ssl->handshake ) - { - mbedtls_ssl_handshake_free( ssl ); - mbedtls_ssl_transform_free( ssl->transform_negotiate ); - mbedtls_ssl_session_free( ssl->session_negotiate ); - - mbedtls_free( ssl->handshake ); - mbedtls_free( ssl->transform_negotiate ); - mbedtls_free( ssl->session_negotiate ); - } - - if( ssl->session ) - { - mbedtls_ssl_session_free( ssl->session ); - mbedtls_free( ssl->session ); - } - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - if( ssl->hostname != NULL ) - { - mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) ); - mbedtls_free( ssl->hostname ); - } -#endif - -#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_finish != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_finish()" ) ); - mbedtls_ssl_hw_record_finish( ssl ); - } -#endif - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) - mbedtls_free( ssl->cli_id ); -#endif - - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= free" ) ); - - /* Actually clear after last debug message */ - mbedtls_platform_zeroize( ssl, sizeof( mbedtls_ssl_context ) ); -} - -/* - * Initialze mbedtls_ssl_config - */ -void mbedtls_ssl_config_init( mbedtls_ssl_config *conf ) -{ - memset( conf, 0, sizeof( mbedtls_ssl_config ) ); -} - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -static int ssl_preset_default_hashes[] = { -#if defined(MBEDTLS_SHA512_C) - MBEDTLS_MD_SHA512, - MBEDTLS_MD_SHA384, -#endif -#if defined(MBEDTLS_SHA256_C) - MBEDTLS_MD_SHA256, - MBEDTLS_MD_SHA224, -#endif -#if defined(MBEDTLS_SHA1_C) && defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE) - MBEDTLS_MD_SHA1, -#endif - MBEDTLS_MD_NONE -}; -#endif - -static int ssl_preset_suiteb_ciphersuites[] = { - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, - MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, - 0 -}; - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -static int ssl_preset_suiteb_hashes[] = { - MBEDTLS_MD_SHA256, - MBEDTLS_MD_SHA384, - MBEDTLS_MD_NONE -}; -#endif - -#if defined(MBEDTLS_ECP_C) -static mbedtls_ecp_group_id ssl_preset_suiteb_curves[] = { - MBEDTLS_ECP_DP_SECP256R1, - MBEDTLS_ECP_DP_SECP384R1, - MBEDTLS_ECP_DP_NONE -}; -#endif - -/* - * Load default in mbedtls_ssl_config - */ -int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, - int endpoint, int transport, int preset ) -{ -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) - int ret; -#endif - - /* Use the functions here so that they are covered in tests, - * but otherwise access member directly for efficiency */ - mbedtls_ssl_conf_endpoint( conf, endpoint ); - mbedtls_ssl_conf_transport( conf, transport ); - - /* - * Things that are common to all presets - */ -#if defined(MBEDTLS_SSL_CLI_C) - if( endpoint == MBEDTLS_SSL_IS_CLIENT ) - { - conf->authmode = MBEDTLS_SSL_VERIFY_REQUIRED; -#if defined(MBEDTLS_SSL_SESSION_TICKETS) - conf->session_tickets = MBEDTLS_SSL_SESSION_TICKETS_ENABLED; -#endif - } -#endif - -#if defined(MBEDTLS_ARC4_C) - conf->arc4_disabled = MBEDTLS_SSL_ARC4_DISABLED; -#endif - -#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - conf->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED; -#endif - -#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - conf->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; -#endif - -#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) - conf->cbc_record_splitting = MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED; -#endif - -#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) - conf->f_cookie_write = ssl_cookie_write_dummy; - conf->f_cookie_check = ssl_cookie_check_dummy; -#endif - -#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - conf->anti_replay = MBEDTLS_SSL_ANTI_REPLAY_ENABLED; -#endif - -#if defined(MBEDTLS_SSL_SRV_C) - conf->cert_req_ca_list = MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED; -#endif - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - conf->hs_timeout_min = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN; - conf->hs_timeout_max = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX; -#endif - -#if defined(MBEDTLS_SSL_RENEGOTIATION) - conf->renego_max_records = MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT; - memset( conf->renego_period, 0x00, 2 ); - memset( conf->renego_period + 2, 0xFF, 6 ); -#endif - -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) - if( endpoint == MBEDTLS_SSL_IS_SERVER ) - { - const unsigned char dhm_p[] = - MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN; - const unsigned char dhm_g[] = - MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN; - - if ( ( ret = mbedtls_ssl_conf_dh_param_bin( conf, - dhm_p, sizeof( dhm_p ), - dhm_g, sizeof( dhm_g ) ) ) != 0 ) - { - return( ret ); - } - } -#endif - - /* - * Preset-specific defaults - */ - switch( preset ) - { - /* - * NSA Suite B - */ - case MBEDTLS_SSL_PRESET_SUITEB: - conf->min_major_ver = MBEDTLS_SSL_MAJOR_VERSION_3; - conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_3; /* TLS 1.2 */ - conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION; - conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION; - - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = - ssl_preset_suiteb_ciphersuites; - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - conf->cert_profile = &mbedtls_x509_crt_profile_suiteb; -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - conf->sig_hashes = ssl_preset_suiteb_hashes; -#endif - -#if defined(MBEDTLS_ECP_C) - conf->curve_list = ssl_preset_suiteb_curves; -#endif - break; - - /* - * Default - */ - default: - conf->min_major_ver = ( MBEDTLS_SSL_MIN_MAJOR_VERSION > - MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION ) ? - MBEDTLS_SSL_MIN_MAJOR_VERSION : - MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION; - conf->min_minor_ver = ( MBEDTLS_SSL_MIN_MINOR_VERSION > - MBEDTLS_SSL_MIN_VALID_MINOR_VERSION ) ? - MBEDTLS_SSL_MIN_MINOR_VERSION : - MBEDTLS_SSL_MIN_VALID_MINOR_VERSION; - conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION; - conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION; - -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_2; -#endif - - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = - mbedtls_ssl_list_ciphersuites(); - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - conf->cert_profile = &mbedtls_x509_crt_profile_default; -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - conf->sig_hashes = ssl_preset_default_hashes; -#endif - -#if defined(MBEDTLS_ECP_C) - conf->curve_list = mbedtls_ecp_grp_id_list(); -#endif - -#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C) - conf->dhm_min_bitlen = 1024; -#endif - } - - return( 0 ); -} - -/* - * Free mbedtls_ssl_config - */ -void mbedtls_ssl_config_free( mbedtls_ssl_config *conf ) -{ -#if defined(MBEDTLS_DHM_C) - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); -#endif - -#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) - if( conf->psk != NULL ) - { - mbedtls_platform_zeroize( conf->psk, conf->psk_len ); - mbedtls_free( conf->psk ); - conf->psk = NULL; - conf->psk_len = 0; - } - - if( conf->psk_identity != NULL ) - { - mbedtls_platform_zeroize( conf->psk_identity, conf->psk_identity_len ); - mbedtls_free( conf->psk_identity ); - conf->psk_identity = NULL; - conf->psk_identity_len = 0; - } -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - ssl_key_cert_free( conf->key_cert ); -#endif - - mbedtls_platform_zeroize( conf, sizeof( mbedtls_ssl_config ) ); -} - -#if defined(MBEDTLS_PK_C) && \ - ( defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) ) -/* - * Convert between MBEDTLS_PK_XXX and SSL_SIG_XXX - */ -unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk ) -{ -#if defined(MBEDTLS_RSA_C) - if( mbedtls_pk_can_do( pk, MBEDTLS_PK_RSA ) ) - return( MBEDTLS_SSL_SIG_RSA ); -#endif -#if defined(MBEDTLS_ECDSA_C) - if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECDSA ) ) - return( MBEDTLS_SSL_SIG_ECDSA ); -#endif - return( MBEDTLS_SSL_SIG_ANON ); -} - -unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type ) -{ - switch( type ) { - case MBEDTLS_PK_RSA: - return( MBEDTLS_SSL_SIG_RSA ); - case MBEDTLS_PK_ECDSA: - case MBEDTLS_PK_ECKEY: - return( MBEDTLS_SSL_SIG_ECDSA ); - default: - return( MBEDTLS_SSL_SIG_ANON ); - } -} - -mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig ) -{ - switch( sig ) - { -#if defined(MBEDTLS_RSA_C) - case MBEDTLS_SSL_SIG_RSA: - return( MBEDTLS_PK_RSA ); -#endif -#if defined(MBEDTLS_ECDSA_C) - case MBEDTLS_SSL_SIG_ECDSA: - return( MBEDTLS_PK_ECDSA ); -#endif - default: - return( MBEDTLS_PK_NONE ); - } -} -#endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_ECDSA_C ) */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ - defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) - -/* Find an entry in a signature-hash set matching a given hash algorithm. */ -mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_pk_type_t sig_alg ) -{ - switch( sig_alg ) - { - case MBEDTLS_PK_RSA: - return( set->rsa ); - case MBEDTLS_PK_ECDSA: - return( set->ecdsa ); - default: - return( MBEDTLS_MD_NONE ); - } -} - -/* Add a signature-hash-pair to a signature-hash set */ -void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_pk_type_t sig_alg, - mbedtls_md_type_t md_alg ) -{ - switch( sig_alg ) - { - case MBEDTLS_PK_RSA: - if( set->rsa == MBEDTLS_MD_NONE ) - set->rsa = md_alg; - break; - - case MBEDTLS_PK_ECDSA: - if( set->ecdsa == MBEDTLS_MD_NONE ) - set->ecdsa = md_alg; - break; - - default: - break; - } -} - -/* Allow exactly one hash algorithm for each signature. */ -void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_md_type_t md_alg ) -{ - set->rsa = md_alg; - set->ecdsa = md_alg; -} - -#endif /* MBEDTLS_SSL_PROTO_TLS1_2) && - MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -/* - * Convert from MBEDTLS_SSL_HASH_XXX to MBEDTLS_MD_XXX - */ -mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash ) -{ - switch( hash ) - { -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_SSL_HASH_MD5: - return( MBEDTLS_MD_MD5 ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_SSL_HASH_SHA1: - return( MBEDTLS_MD_SHA1 ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_SSL_HASH_SHA224: - return( MBEDTLS_MD_SHA224 ); - case MBEDTLS_SSL_HASH_SHA256: - return( MBEDTLS_MD_SHA256 ); -#endif -#if defined(MBEDTLS_SHA512_C) - case MBEDTLS_SSL_HASH_SHA384: - return( MBEDTLS_MD_SHA384 ); - case MBEDTLS_SSL_HASH_SHA512: - return( MBEDTLS_MD_SHA512 ); -#endif - default: - return( MBEDTLS_MD_NONE ); - } -} - -/* - * Convert from MBEDTLS_MD_XXX to MBEDTLS_SSL_HASH_XXX - */ -unsigned char mbedtls_ssl_hash_from_md_alg( int md ) -{ - switch( md ) - { -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_MD_MD5: - return( MBEDTLS_SSL_HASH_MD5 ); -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_MD_SHA1: - return( MBEDTLS_SSL_HASH_SHA1 ); -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_MD_SHA224: - return( MBEDTLS_SSL_HASH_SHA224 ); - case MBEDTLS_MD_SHA256: - return( MBEDTLS_SSL_HASH_SHA256 ); -#endif -#if defined(MBEDTLS_SHA512_C) - case MBEDTLS_MD_SHA384: - return( MBEDTLS_SSL_HASH_SHA384 ); - case MBEDTLS_MD_SHA512: - return( MBEDTLS_SSL_HASH_SHA512 ); -#endif - default: - return( MBEDTLS_SSL_HASH_NONE ); - } -} - -#if defined(MBEDTLS_ECP_C) -/* - * Check if a curve proposed by the peer is in our list. - * Return 0 if we're willing to use it, -1 otherwise. - */ -int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id ) -{ - const mbedtls_ecp_group_id *gid; - - if( ssl->conf->curve_list == NULL ) - return( -1 ); - - for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ ) - if( *gid == grp_id ) - return( 0 ); - - return( -1 ); -} -#endif /* MBEDTLS_ECP_C */ - -#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) -/* - * Check if a hash proposed by the peer is in our list. - * Return 0 if we're willing to use it, -1 otherwise. - */ -int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl, - mbedtls_md_type_t md ) -{ - const int *cur; - - if( ssl->conf->sig_hashes == NULL ) - return( -1 ); - - for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ ) - if( *cur == (int) md ) - return( 0 ); - - return( -1 ); -} -#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */ - -#if defined(MBEDTLS_X509_CRT_PARSE_C) -int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, - const mbedtls_ssl_ciphersuite_t *ciphersuite, - int cert_endpoint, - uint32_t *flags ) -{ - int ret = 0; -#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) - int usage = 0; -#endif -#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) - const char *ext_oid; - size_t ext_len; -#endif - -#if !defined(MBEDTLS_X509_CHECK_KEY_USAGE) && \ - !defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) - ((void) cert); - ((void) cert_endpoint); - ((void) flags); -#endif - -#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) - if( cert_endpoint == MBEDTLS_SSL_IS_SERVER ) - { - /* Server part of the key exchange */ - switch( ciphersuite->key_exchange ) - { - case MBEDTLS_KEY_EXCHANGE_RSA: - case MBEDTLS_KEY_EXCHANGE_RSA_PSK: - usage = MBEDTLS_X509_KU_KEY_ENCIPHERMENT; - break; - - case MBEDTLS_KEY_EXCHANGE_DHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA: - usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE; - break; - - case MBEDTLS_KEY_EXCHANGE_ECDH_RSA: - case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA: - usage = MBEDTLS_X509_KU_KEY_AGREEMENT; - break; - - /* Don't use default: we want warnings when adding new values */ - case MBEDTLS_KEY_EXCHANGE_NONE: - case MBEDTLS_KEY_EXCHANGE_PSK: - case MBEDTLS_KEY_EXCHANGE_DHE_PSK: - case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK: - case MBEDTLS_KEY_EXCHANGE_ECJPAKE: - usage = 0; - } - } - else - { - /* Client auth: we only implement rsa_sign and mbedtls_ecdsa_sign for now */ - usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE; - } - - if( mbedtls_x509_crt_check_key_usage( cert, usage ) != 0 ) - { - *flags |= MBEDTLS_X509_BADCERT_KEY_USAGE; - ret = -1; - } -#else - ((void) ciphersuite); -#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */ - -#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) - if( cert_endpoint == MBEDTLS_SSL_IS_SERVER ) - { - ext_oid = MBEDTLS_OID_SERVER_AUTH; - ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_SERVER_AUTH ); - } - else - { - ext_oid = MBEDTLS_OID_CLIENT_AUTH; - ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_CLIENT_AUTH ); - } - - if( mbedtls_x509_crt_check_extended_key_usage( cert, ext_oid, ext_len ) != 0 ) - { - *flags |= MBEDTLS_X509_BADCERT_EXT_KEY_USAGE; - ret = -1; - } -#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */ - - return( ret ); -} -#endif /* MBEDTLS_X509_CRT_PARSE_C */ - -/* - * Convert version numbers to/from wire format - * and, for DTLS, to/from TLS equivalent. - * - * For TLS this is the identity. - * For DTLS, use 1's complement (v -> 255 - v, and then map as follows: - * 1.0 <-> 3.2 (DTLS 1.0 is based on TLS 1.1) - * 1.x <-> 3.x+1 for x != 0 (DTLS 1.2 based on TLS 1.2) - */ -void mbedtls_ssl_write_version( int major, int minor, int transport, - unsigned char ver[2] ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - if( minor == MBEDTLS_SSL_MINOR_VERSION_2 ) - --minor; /* DTLS 1.0 stored as TLS 1.1 internally */ - - ver[0] = (unsigned char)( 255 - ( major - 2 ) ); - ver[1] = (unsigned char)( 255 - ( minor - 1 ) ); - } - else -#else - ((void) transport); -#endif - { - ver[0] = (unsigned char) major; - ver[1] = (unsigned char) minor; - } -} - -void mbedtls_ssl_read_version( int *major, int *minor, int transport, - const unsigned char ver[2] ) -{ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - *major = 255 - ver[0] + 2; - *minor = 255 - ver[1] + 1; - - if( *minor == MBEDTLS_SSL_MINOR_VERSION_1 ) - ++*minor; /* DTLS 1.0 stored as TLS 1.1 internally */ - } - else -#else - ((void) transport); -#endif - { - *major = ver[0]; - *minor = ver[1]; - } -} - -int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md ) -{ -#if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) - return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; - - switch( md ) - { -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) -#if defined(MBEDTLS_MD5_C) - case MBEDTLS_SSL_HASH_MD5: - return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; -#endif -#if defined(MBEDTLS_SHA1_C) - case MBEDTLS_SSL_HASH_SHA1: - ssl->handshake->calc_verify = ssl_calc_verify_tls; - break; -#endif -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ -#if defined(MBEDTLS_SHA512_C) - case MBEDTLS_SSL_HASH_SHA384: - ssl->handshake->calc_verify = ssl_calc_verify_tls_sha384; - break; -#endif -#if defined(MBEDTLS_SHA256_C) - case MBEDTLS_SSL_HASH_SHA256: - ssl->handshake->calc_verify = ssl_calc_verify_tls_sha256; - break; -#endif - default: - return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; - } - - return 0; -#else /* !MBEDTLS_SSL_PROTO_TLS1_2 */ - (void) ssl; - (void) md; - - return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; -#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -} - -#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_1) -int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl, - unsigned char *output, - unsigned char *data, size_t data_len ) -{ - int ret = 0; - mbedtls_md5_context mbedtls_md5; - mbedtls_sha1_context mbedtls_sha1; - - mbedtls_md5_init( &mbedtls_md5 ); - mbedtls_sha1_init( &mbedtls_sha1 ); - - /* - * digitally-signed struct { - * opaque md5_hash[16]; - * opaque sha_hash[20]; - * }; - * - * md5_hash - * MD5(ClientHello.random + ServerHello.random - * + ServerParams); - * sha_hash - * SHA(ClientHello.random + ServerHello.random - * + ServerParams); - */ - if( ( ret = mbedtls_md5_starts_ret( &mbedtls_md5 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_starts_ret", ret ); - goto exit; - } - if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5, - ssl->handshake->randbytes, 64 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret ); - goto exit; - } - if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5, data, data_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret ); - goto exit; - } - if( ( ret = mbedtls_md5_finish_ret( &mbedtls_md5, output ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_finish_ret", ret ); - goto exit; - } - - if( ( ret = mbedtls_sha1_starts_ret( &mbedtls_sha1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_starts_ret", ret ); - goto exit; - } - if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1, - ssl->handshake->randbytes, 64 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret ); - goto exit; - } - if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1, data, - data_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret ); - goto exit; - } - if( ( ret = mbedtls_sha1_finish_ret( &mbedtls_sha1, - output + 16 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_finish_ret", ret ); - goto exit; - } - -exit: - mbedtls_md5_free( &mbedtls_md5 ); - mbedtls_sha1_free( &mbedtls_sha1 ); - - if( ret != 0 ) - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - - return( ret ); - -} -#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ - MBEDTLS_SSL_PROTO_TLS1_1 */ - -#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ - defined(MBEDTLS_SSL_PROTO_TLS1_2) - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl, - unsigned char *hash, size_t *hashlen, - unsigned char *data, size_t data_len, - mbedtls_md_type_t md_alg ) -{ - psa_status_t status; - psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT; - psa_algorithm_t hash_alg = mbedtls_psa_translate_md( md_alg ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform PSA-based computation of digest of ServerKeyExchange" ) ); - - if( ( status = psa_hash_setup( &hash_operation, - hash_alg ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_setup", status ); - goto exit; - } - - if( ( status = psa_hash_update( &hash_operation, ssl->handshake->randbytes, - 64 ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status ); - goto exit; - } - - if( ( status = psa_hash_update( &hash_operation, - data, data_len ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status ); - goto exit; - } - - if( ( status = psa_hash_finish( &hash_operation, hash, MBEDTLS_MD_MAX_SIZE, - hashlen ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_finish", status ); - goto exit; - } - -exit: - if( status != PSA_SUCCESS ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - switch( status ) - { - case PSA_ERROR_NOT_SUPPORTED: - return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE ); - case PSA_ERROR_BAD_STATE: /* Intentional fallthrough */ - case PSA_ERROR_BUFFER_TOO_SMALL: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); - case PSA_ERROR_INSUFFICIENT_MEMORY: - return( MBEDTLS_ERR_MD_ALLOC_FAILED ); - default: - return( MBEDTLS_ERR_MD_HW_ACCEL_FAILED ); - } - } - return( 0 ); -} - -#else - -int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl, - unsigned char *hash, size_t *hashlen, - unsigned char *data, size_t data_len, - mbedtls_md_type_t md_alg ) -{ - int ret = 0; - mbedtls_md_context_t ctx; - const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg ); - *hashlen = mbedtls_md_get_size( md_info ); - - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform mbedtls-based computation of digest of ServerKeyExchange" ) ); - - mbedtls_md_init( &ctx ); - - /* - * digitally-signed struct { - * opaque client_random[32]; - * opaque server_random[32]; - * ServerDHParams params; - * }; - */ - if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret ); - goto exit; - } - if( ( ret = mbedtls_md_starts( &ctx ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_starts", ret ); - goto exit; - } - if( ( ret = mbedtls_md_update( &ctx, ssl->handshake->randbytes, 64 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret ); - goto exit; - } - if( ( ret = mbedtls_md_update( &ctx, data, data_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret ); - goto exit; - } - if( ( ret = mbedtls_md_finish( &ctx, hash ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_finish", ret ); - goto exit; - } - -exit: - mbedtls_md_free( &ctx ); - - if( ret != 0 ) - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - - return( ret ); -} -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - -#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ - MBEDTLS_SSL_PROTO_TLS1_2 */ - -#endif /* MBEDTLS_SSL_TLS_C */ diff --git a/library/x509.c b/library/x509.c deleted file mode 100644 index 3f8e29071..000000000 --- a/library/x509.c +++ /dev/null @@ -1,1062 +0,0 @@ -/* - * X.509 common functions for parsing and verification - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * The ITU-T X.509 standard defines a certificate format for PKI. - * - * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) - * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) - * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) - * - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_X509_USE_C) - -#include "mbedtls/x509.h" -#include "mbedtls/asn1.h" -#include "mbedtls/oid.h" - -#include -#include - -#if defined(MBEDTLS_PEM_PARSE_C) -#include "mbedtls/pem.h" -#endif - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#include -#define mbedtls_free free -#define mbedtls_calloc calloc -#define mbedtls_printf printf -#define mbedtls_snprintf snprintf -#endif - -#if defined(MBEDTLS_HAVE_TIME) -#include "mbedtls/platform_time.h" -#endif -#if defined(MBEDTLS_HAVE_TIME_DATE) -#include "mbedtls/platform_util.h" -#include -#endif - -#define CHECK(code) if( ( ret = code ) != 0 ){ return( ret ); } -#define CHECK_RANGE(min, max, val) if( val < min || val > max ){ return( ret ); } - -/* - * CertificateSerialNumber ::= INTEGER - */ -int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *serial ) -{ - int ret; - - if( ( end - *p ) < 1 ) - return( MBEDTLS_ERR_X509_INVALID_SERIAL + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ); - - if( **p != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_PRIMITIVE | 2 ) && - **p != MBEDTLS_ASN1_INTEGER ) - return( MBEDTLS_ERR_X509_INVALID_SERIAL + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - - serial->tag = *(*p)++; - - if( ( ret = mbedtls_asn1_get_len( p, end, &serial->len ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_SERIAL + ret ); - - serial->p = *p; - *p += serial->len; - - return( 0 ); -} - -/* Get an algorithm identifier without parameters (eg for signatures) - * - * AlgorithmIdentifier ::= SEQUENCE { - * algorithm OBJECT IDENTIFIER, - * parameters ANY DEFINED BY algorithm OPTIONAL } - */ -int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *alg ) -{ - int ret; - - if( ( ret = mbedtls_asn1_get_alg_null( p, end, alg ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - return( 0 ); -} - -/* - * Parse an algorithm identifier with (optional) parameters - */ -int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *alg, mbedtls_x509_buf *params ) -{ - int ret; - - if( ( ret = mbedtls_asn1_get_alg( p, end, alg, params ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - return( 0 ); -} - -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) -/* - * HashAlgorithm ::= AlgorithmIdentifier - * - * AlgorithmIdentifier ::= SEQUENCE { - * algorithm OBJECT IDENTIFIER, - * parameters ANY DEFINED BY algorithm OPTIONAL } - * - * For HashAlgorithm, parameters MUST be NULL or absent. - */ -static int x509_get_hash_alg( const mbedtls_x509_buf *alg, mbedtls_md_type_t *md_alg ) -{ - int ret; - unsigned char *p; - const unsigned char *end; - mbedtls_x509_buf md_oid; - size_t len; - - /* Make sure we got a SEQUENCE and setup bounds */ - if( alg->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - - p = (unsigned char *) alg->p; - end = p + alg->len; - - if( p >= end ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ); - - /* Parse md_oid */ - md_oid.tag = *p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &md_oid.len, MBEDTLS_ASN1_OID ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - md_oid.p = p; - p += md_oid.len; - - /* Get md_alg from md_oid */ - if( ( ret = mbedtls_oid_get_md_alg( &md_oid, md_alg ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - /* Make sure params is absent of NULL */ - if( p == end ) - return( 0 ); - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_NULL ) ) != 0 || len != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p != end ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * RSASSA-PSS-params ::= SEQUENCE { - * hashAlgorithm [0] HashAlgorithm DEFAULT sha1Identifier, - * maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT mgf1SHA1Identifier, - * saltLength [2] INTEGER DEFAULT 20, - * trailerField [3] INTEGER DEFAULT 1 } - * -- Note that the tags in this Sequence are explicit. - * - * RFC 4055 (which defines use of RSASSA-PSS in PKIX) states that the value - * of trailerField MUST be 1, and PKCS#1 v2.2 doesn't even define any other - * option. Enfore this at parsing time. - */ -int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params, - mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md, - int *salt_len ) -{ - int ret; - unsigned char *p; - const unsigned char *end, *end2; - size_t len; - mbedtls_x509_buf alg_id, alg_params; - - /* First set everything to defaults */ - *md_alg = MBEDTLS_MD_SHA1; - *mgf_md = MBEDTLS_MD_SHA1; - *salt_len = 20; - - /* Make sure params is a SEQUENCE and setup bounds */ - if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - - p = (unsigned char *) params->p; - end = p + params->len; - - if( p == end ) - return( 0 ); - - /* - * HashAlgorithm - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) == 0 ) - { - end2 = p + len; - - /* HashAlgorithm ::= AlgorithmIdentifier (without parameters) */ - if( ( ret = mbedtls_x509_get_alg_null( &p, end2, &alg_id ) ) != 0 ) - return( ret ); - - if( ( ret = mbedtls_oid_get_md_alg( &alg_id, md_alg ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p != end2 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p == end ) - return( 0 ); - - /* - * MaskGenAlgorithm - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ) == 0 ) - { - end2 = p + len; - - /* MaskGenAlgorithm ::= AlgorithmIdentifier (params = HashAlgorithm) */ - if( ( ret = mbedtls_x509_get_alg( &p, end2, &alg_id, &alg_params ) ) != 0 ) - return( ret ); - - /* Only MFG1 is recognised for now */ - if( MBEDTLS_OID_CMP( MBEDTLS_OID_MGF1, &alg_id ) != 0 ) - return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE + - MBEDTLS_ERR_OID_NOT_FOUND ); - - /* Parse HashAlgorithm */ - if( ( ret = x509_get_hash_alg( &alg_params, mgf_md ) ) != 0 ) - return( ret ); - - if( p != end2 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p == end ) - return( 0 ); - - /* - * salt_len - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 2 ) ) == 0 ) - { - end2 = p + len; - - if( ( ret = mbedtls_asn1_get_int( &p, end2, salt_len ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p != end2 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p == end ) - return( 0 ); - - /* - * trailer_field (if present, must be 1) - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 3 ) ) == 0 ) - { - int trailer_field; - - end2 = p + len; - - if( ( ret = mbedtls_asn1_get_int( &p, end2, &trailer_field ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p != end2 ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - if( trailer_field != 1 ) - return( MBEDTLS_ERR_X509_INVALID_ALG ); - } - else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( MBEDTLS_ERR_X509_INVALID_ALG + ret ); - - if( p != end ) - return( MBEDTLS_ERR_X509_INVALID_ALG + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} -#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */ - -/* - * AttributeTypeAndValue ::= SEQUENCE { - * type AttributeType, - * value AttributeValue } - * - * AttributeType ::= OBJECT IDENTIFIER - * - * AttributeValue ::= ANY DEFINED BY AttributeType - */ -static int x509_get_attr_type_value( unsigned char **p, - const unsigned char *end, - mbedtls_x509_name *cur ) -{ - int ret; - size_t len; - mbedtls_x509_buf *oid; - mbedtls_x509_buf *val; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); - - if( ( end - *p ) < 1 ) - return( MBEDTLS_ERR_X509_INVALID_NAME + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ); - - oid = &cur->oid; - oid->tag = **p; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &oid->len, MBEDTLS_ASN1_OID ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); - - oid->p = *p; - *p += oid->len; - - if( ( end - *p ) < 1 ) - return( MBEDTLS_ERR_X509_INVALID_NAME + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ); - - if( **p != MBEDTLS_ASN1_BMP_STRING && **p != MBEDTLS_ASN1_UTF8_STRING && - **p != MBEDTLS_ASN1_T61_STRING && **p != MBEDTLS_ASN1_PRINTABLE_STRING && - **p != MBEDTLS_ASN1_IA5_STRING && **p != MBEDTLS_ASN1_UNIVERSAL_STRING && - **p != MBEDTLS_ASN1_BIT_STRING ) - return( MBEDTLS_ERR_X509_INVALID_NAME + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - - val = &cur->val; - val->tag = *(*p)++; - - if( ( ret = mbedtls_asn1_get_len( p, end, &val->len ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); - - val->p = *p; - *p += val->len; - - cur->next = NULL; - - return( 0 ); -} - -/* - * Name ::= CHOICE { -- only one possibility for now -- - * rdnSequence RDNSequence } - * - * RDNSequence ::= SEQUENCE OF RelativeDistinguishedName - * - * RelativeDistinguishedName ::= - * SET OF AttributeTypeAndValue - * - * AttributeTypeAndValue ::= SEQUENCE { - * type AttributeType, - * value AttributeValue } - * - * AttributeType ::= OBJECT IDENTIFIER - * - * AttributeValue ::= ANY DEFINED BY AttributeType - * - * The data structure is optimized for the common case where each RDN has only - * one element, which is represented as a list of AttributeTypeAndValue. - * For the general case we still use a flat list, but we mark elements of the - * same set so that they are "merged" together in the functions that consume - * this list, eg mbedtls_x509_dn_gets(). - */ -int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end, - mbedtls_x509_name *cur ) -{ - int ret; - size_t set_len; - const unsigned char *end_set; - - /* don't use recursion, we'd risk stack overflow if not optimized */ - while( 1 ) - { - /* - * parse SET - */ - if( ( ret = mbedtls_asn1_get_tag( p, end, &set_len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SET ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_NAME + ret ); - - end_set = *p + set_len; - - while( 1 ) - { - if( ( ret = x509_get_attr_type_value( p, end_set, cur ) ) != 0 ) - return( ret ); - - if( *p == end_set ) - break; - - /* Mark this item as being no the only one in a set */ - cur->next_merged = 1; - - cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) ); - - if( cur->next == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - cur = cur->next; - } - - /* - * continue until end of SEQUENCE is reached - */ - if( *p == end ) - return( 0 ); - - cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) ); - - if( cur->next == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - cur = cur->next; - } -} - -static int x509_parse_int( unsigned char **p, size_t n, int *res ) -{ - *res = 0; - - for( ; n > 0; --n ) - { - if( ( **p < '0') || ( **p > '9' ) ) - return ( MBEDTLS_ERR_X509_INVALID_DATE ); - - *res *= 10; - *res += ( *(*p)++ - '0' ); - } - - return( 0 ); -} - -static int x509_date_is_valid(const mbedtls_x509_time *t ) -{ - int ret = MBEDTLS_ERR_X509_INVALID_DATE; - int month_len; - - CHECK_RANGE( 0, 9999, t->year ); - CHECK_RANGE( 0, 23, t->hour ); - CHECK_RANGE( 0, 59, t->min ); - CHECK_RANGE( 0, 59, t->sec ); - - switch( t->mon ) - { - case 1: case 3: case 5: case 7: case 8: case 10: case 12: - month_len = 31; - break; - case 4: case 6: case 9: case 11: - month_len = 30; - break; - case 2: - if( ( !( t->year % 4 ) && t->year % 100 ) || - !( t->year % 400 ) ) - month_len = 29; - else - month_len = 28; - break; - default: - return( ret ); - } - CHECK_RANGE( 1, month_len, t->day ); - - return( 0 ); -} - -/* - * Parse an ASN1_UTC_TIME (yearlen=2) or ASN1_GENERALIZED_TIME (yearlen=4) - * field. - */ -static int x509_parse_time( unsigned char **p, size_t len, size_t yearlen, - mbedtls_x509_time *tm ) -{ - int ret; - - /* - * Minimum length is 10 or 12 depending on yearlen - */ - if ( len < yearlen + 8 ) - return ( MBEDTLS_ERR_X509_INVALID_DATE ); - len -= yearlen + 8; - - /* - * Parse year, month, day, hour, minute - */ - CHECK( x509_parse_int( p, yearlen, &tm->year ) ); - if ( 2 == yearlen ) - { - if ( tm->year < 50 ) - tm->year += 100; - - tm->year += 1900; - } - - CHECK( x509_parse_int( p, 2, &tm->mon ) ); - CHECK( x509_parse_int( p, 2, &tm->day ) ); - CHECK( x509_parse_int( p, 2, &tm->hour ) ); - CHECK( x509_parse_int( p, 2, &tm->min ) ); - - /* - * Parse seconds if present - */ - if ( len >= 2 ) - { - CHECK( x509_parse_int( p, 2, &tm->sec ) ); - len -= 2; - } - else - return ( MBEDTLS_ERR_X509_INVALID_DATE ); - - /* - * Parse trailing 'Z' if present - */ - if ( 1 == len && 'Z' == **p ) - { - (*p)++; - len--; - } - - /* - * We should have parsed all characters at this point - */ - if ( 0 != len ) - return ( MBEDTLS_ERR_X509_INVALID_DATE ); - - CHECK( x509_date_is_valid( tm ) ); - - return ( 0 ); -} - -/* - * Time ::= CHOICE { - * utcTime UTCTime, - * generalTime GeneralizedTime } - */ -int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end, - mbedtls_x509_time *tm ) -{ - int ret; - size_t len, year_len; - unsigned char tag; - - if( ( end - *p ) < 1 ) - return( MBEDTLS_ERR_X509_INVALID_DATE + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ); - - tag = **p; - - if( tag == MBEDTLS_ASN1_UTC_TIME ) - year_len = 2; - else if( tag == MBEDTLS_ASN1_GENERALIZED_TIME ) - year_len = 4; - else - return( MBEDTLS_ERR_X509_INVALID_DATE + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - - (*p)++; - ret = mbedtls_asn1_get_len( p, end, &len ); - - if( ret != 0 ) - return( MBEDTLS_ERR_X509_INVALID_DATE + ret ); - - return x509_parse_time( p, len, year_len, tm ); -} - -int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig ) -{ - int ret; - size_t len; - int tag_type; - - if( ( end - *p ) < 1 ) - return( MBEDTLS_ERR_X509_INVALID_SIGNATURE + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ); - - tag_type = **p; - - if( ( ret = mbedtls_asn1_get_bitstring_null( p, end, &len ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_SIGNATURE + ret ); - - sig->tag = tag_type; - sig->len = len; - sig->p = *p; - - *p += len; - - return( 0 ); -} - -/* - * Get signature algorithm from alg OID and optional parameters - */ -int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params, - mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg, - void **sig_opts ) -{ - int ret; - - if( *sig_opts != NULL ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - if( ( ret = mbedtls_oid_get_sig_alg( sig_oid, md_alg, pk_alg ) ) != 0 ) - return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + ret ); - -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) - if( *pk_alg == MBEDTLS_PK_RSASSA_PSS ) - { - mbedtls_pk_rsassa_pss_options *pss_opts; - - pss_opts = mbedtls_calloc( 1, sizeof( mbedtls_pk_rsassa_pss_options ) ); - if( pss_opts == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - ret = mbedtls_x509_get_rsassa_pss_params( sig_params, - md_alg, - &pss_opts->mgf1_hash_id, - &pss_opts->expected_salt_len ); - if( ret != 0 ) - { - mbedtls_free( pss_opts ); - return( ret ); - } - - *sig_opts = (void *) pss_opts; - } - else -#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */ - { - /* Make sure parameters are absent or NULL */ - if( ( sig_params->tag != MBEDTLS_ASN1_NULL && sig_params->tag != 0 ) || - sig_params->len != 0 ) - return( MBEDTLS_ERR_X509_INVALID_ALG ); - } - - return( 0 ); -} - -/* - * X.509 Extensions (No parsing of extensions, pointer should - * be either manually updated or extensions should be parsed!) - */ -int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end, - mbedtls_x509_buf *ext, int tag ) -{ - int ret; - size_t len; - - if( *p == end ) - return( 0 ); - - ext->tag = **p; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | tag ) ) != 0 ) - return( ret ); - - ext->p = *p; - end = *p + ext->len; - - /* - * Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension - * - * Extension ::= SEQUENCE { - * extnID OBJECT IDENTIFIER, - * critical BOOLEAN DEFAULT FALSE, - * extnValue OCTET STRING } - */ - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( end != *p + len ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * Store the name in printable form into buf; no more - * than size characters will be written - */ -int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn ) -{ - int ret; - size_t i, n; - unsigned char c, merge = 0; - const mbedtls_x509_name *name; - const char *short_name = NULL; - char s[MBEDTLS_X509_MAX_DN_NAME_SIZE], *p; - - memset( s, 0, sizeof( s ) ); - - name = dn; - p = buf; - n = size; - - while( name != NULL ) - { - if( !name->oid.p ) - { - name = name->next; - continue; - } - - if( name != dn ) - { - ret = mbedtls_snprintf( p, n, merge ? " + " : ", " ); - MBEDTLS_X509_SAFE_SNPRINTF; - } - - ret = mbedtls_oid_get_attr_short_name( &name->oid, &short_name ); - - if( ret == 0 ) - ret = mbedtls_snprintf( p, n, "%s=", short_name ); - else - ret = mbedtls_snprintf( p, n, "\?\?=" ); - MBEDTLS_X509_SAFE_SNPRINTF; - - for( i = 0; i < name->val.len; i++ ) - { - if( i >= sizeof( s ) - 1 ) - break; - - c = name->val.p[i]; - if( c < 32 || c == 127 || ( c > 128 && c < 160 ) ) - s[i] = '?'; - else s[i] = c; - } - s[i] = '\0'; - ret = mbedtls_snprintf( p, n, "%s", s ); - MBEDTLS_X509_SAFE_SNPRINTF; - - merge = name->next_merged; - name = name->next; - } - - return( (int) ( size - n ) ); -} - -/* - * Store the serial in printable form into buf; no more - * than size characters will be written - */ -int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial ) -{ - int ret; - size_t i, n, nr; - char *p; - - p = buf; - n = size; - - nr = ( serial->len <= 32 ) - ? serial->len : 28; - - for( i = 0; i < nr; i++ ) - { - if( i == 0 && nr > 1 && serial->p[i] == 0x0 ) - continue; - - ret = mbedtls_snprintf( p, n, "%02X%s", - serial->p[i], ( i < nr - 1 ) ? ":" : "" ); - MBEDTLS_X509_SAFE_SNPRINTF; - } - - if( nr != serial->len ) - { - ret = mbedtls_snprintf( p, n, "...." ); - MBEDTLS_X509_SAFE_SNPRINTF; - } - - return( (int) ( size - n ) ); -} - -/* - * Helper for writing signature algorithms - */ -int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid, - mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg, - const void *sig_opts ) -{ - int ret; - char *p = buf; - size_t n = size; - const char *desc = NULL; - - ret = mbedtls_oid_get_sig_alg_desc( sig_oid, &desc ); - if( ret != 0 ) - ret = mbedtls_snprintf( p, n, "???" ); - else - ret = mbedtls_snprintf( p, n, "%s", desc ); - MBEDTLS_X509_SAFE_SNPRINTF; - -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) - if( pk_alg == MBEDTLS_PK_RSASSA_PSS ) - { - const mbedtls_pk_rsassa_pss_options *pss_opts; - const mbedtls_md_info_t *md_info, *mgf_md_info; - - pss_opts = (const mbedtls_pk_rsassa_pss_options *) sig_opts; - - md_info = mbedtls_md_info_from_type( md_alg ); - mgf_md_info = mbedtls_md_info_from_type( pss_opts->mgf1_hash_id ); - - ret = mbedtls_snprintf( p, n, " (%s, MGF1-%s, 0x%02X)", - md_info ? mbedtls_md_get_name( md_info ) : "???", - mgf_md_info ? mbedtls_md_get_name( mgf_md_info ) : "???", - pss_opts->expected_salt_len ); - MBEDTLS_X509_SAFE_SNPRINTF; - } -#else - ((void) pk_alg); - ((void) md_alg); - ((void) sig_opts); -#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */ - - return( (int)( size - n ) ); -} - -/* - * Helper for writing "RSA key size", "EC key size", etc - */ -int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name ) -{ - char *p = buf; - size_t n = buf_size; - int ret; - - ret = mbedtls_snprintf( p, n, "%s key size", name ); - MBEDTLS_X509_SAFE_SNPRINTF; - - return( 0 ); -} - -#if defined(MBEDTLS_HAVE_TIME_DATE) -/* - * Set the time structure to the current time. - * Return 0 on success, non-zero on failure. - */ -static int x509_get_current_time( mbedtls_x509_time *now ) -{ - struct tm *lt, tm_buf; - mbedtls_time_t tt; - int ret = 0; - - tt = mbedtls_time( NULL ); - lt = mbedtls_platform_gmtime_r( &tt, &tm_buf ); - - if( lt == NULL ) - ret = -1; - else - { - now->year = lt->tm_year + 1900; - now->mon = lt->tm_mon + 1; - now->day = lt->tm_mday; - now->hour = lt->tm_hour; - now->min = lt->tm_min; - now->sec = lt->tm_sec; - } - - return( ret ); -} - -/* - * Return 0 if before <= after, 1 otherwise - */ -static int x509_check_time( const mbedtls_x509_time *before, const mbedtls_x509_time *after ) -{ - if( before->year > after->year ) - return( 1 ); - - if( before->year == after->year && - before->mon > after->mon ) - return( 1 ); - - if( before->year == after->year && - before->mon == after->mon && - before->day > after->day ) - return( 1 ); - - if( before->year == after->year && - before->mon == after->mon && - before->day == after->day && - before->hour > after->hour ) - return( 1 ); - - if( before->year == after->year && - before->mon == after->mon && - before->day == after->day && - before->hour == after->hour && - before->min > after->min ) - return( 1 ); - - if( before->year == after->year && - before->mon == after->mon && - before->day == after->day && - before->hour == after->hour && - before->min == after->min && - before->sec > after->sec ) - return( 1 ); - - return( 0 ); -} - -int mbedtls_x509_time_is_past( const mbedtls_x509_time *to ) -{ - mbedtls_x509_time now; - - if( x509_get_current_time( &now ) != 0 ) - return( 1 ); - - return( x509_check_time( &now, to ) ); -} - -int mbedtls_x509_time_is_future( const mbedtls_x509_time *from ) -{ - mbedtls_x509_time now; - - if( x509_get_current_time( &now ) != 0 ) - return( 1 ); - - return( x509_check_time( from, &now ) ); -} - -#else /* MBEDTLS_HAVE_TIME_DATE */ - -int mbedtls_x509_time_is_past( const mbedtls_x509_time *to ) -{ - ((void) to); - return( 0 ); -} - -int mbedtls_x509_time_is_future( const mbedtls_x509_time *from ) -{ - ((void) from); - return( 0 ); -} -#endif /* MBEDTLS_HAVE_TIME_DATE */ - -#if defined(MBEDTLS_SELF_TEST) - -#include "mbedtls/x509_crt.h" -#include "mbedtls/certs.h" - -/* - * Checkup routine - */ -int mbedtls_x509_self_test( int verbose ) -{ - int ret = 0; -#if defined(MBEDTLS_CERTS_C) && defined(MBEDTLS_SHA256_C) - uint32_t flags; - mbedtls_x509_crt cacert; - mbedtls_x509_crt clicert; - - if( verbose != 0 ) - mbedtls_printf( " X.509 certificate load: " ); - - mbedtls_x509_crt_init( &cacert ); - mbedtls_x509_crt_init( &clicert ); - - ret = mbedtls_x509_crt_parse( &clicert, (const unsigned char *) mbedtls_test_cli_crt, - mbedtls_test_cli_crt_len ); - if( ret != 0 ) - { - if( verbose != 0 ) - mbedtls_printf( "failed\n" ); - - goto cleanup; - } - - ret = mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_ca_crt, - mbedtls_test_ca_crt_len ); - if( ret != 0 ) - { - if( verbose != 0 ) - mbedtls_printf( "failed\n" ); - - goto cleanup; - } - - if( verbose != 0 ) - mbedtls_printf( "passed\n X.509 signature verify: "); - - ret = mbedtls_x509_crt_verify( &clicert, &cacert, NULL, NULL, &flags, NULL, NULL ); - if( ret != 0 ) - { - if( verbose != 0 ) - mbedtls_printf( "failed\n" ); - - goto cleanup; - } - - if( verbose != 0 ) - mbedtls_printf( "passed\n\n"); - -cleanup: - mbedtls_x509_crt_free( &cacert ); - mbedtls_x509_crt_free( &clicert ); -#else - ((void) verbose); -#endif /* MBEDTLS_CERTS_C && MBEDTLS_SHA1_C */ - return( ret ); -} - -#endif /* MBEDTLS_SELF_TEST */ - -#endif /* MBEDTLS_X509_USE_C */ diff --git a/library/x509_create.c b/library/x509_create.c deleted file mode 100644 index 546e8fa1a..000000000 --- a/library/x509_create.c +++ /dev/null @@ -1,379 +0,0 @@ -/* - * X.509 base functions for creating certificates / CSRs - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_X509_CREATE_C) - -#include "mbedtls/x509.h" -#include "mbedtls/asn1write.h" -#include "mbedtls/oid.h" - -#include - -/* Structure linking OIDs for X.509 DN AttributeTypes to their - * string representations and default string encodings used by Mbed TLS. */ -typedef struct { - const char *name; /* String representation of AttributeType, e.g. - * "CN" or "emailAddress". */ - size_t name_len; /* Length of 'name', without trailing 0 byte. */ - const char *oid; /* String representation of OID of AttributeType, - * as per RFC 5280, Appendix A.1. */ - int default_tag; /* The default character encoding used for the - * given attribute type, e.g. - * MBEDTLS_ASN1_UTF8_STRING for UTF-8. */ -} x509_attr_descriptor_t; - -#define ADD_STRLEN( s ) s, sizeof( s ) - 1 - -/* X.509 DN attributes from RFC 5280, Appendix A.1. */ -static const x509_attr_descriptor_t x509_attrs[] = -{ - { ADD_STRLEN( "CN" ), - MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "commonName" ), - MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "C" ), - MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING }, - { ADD_STRLEN( "countryName" ), - MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING }, - { ADD_STRLEN( "O" ), - MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "organizationName" ), - MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "L" ), - MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "locality" ), - MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "R" ), - MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING }, - { ADD_STRLEN( "OU" ), - MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "organizationalUnitName" ), - MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "ST" ), - MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "stateOrProvinceName" ), - MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "emailAddress" ), - MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING }, - { ADD_STRLEN( "serialNumber" ), - MBEDTLS_OID_AT_SERIAL_NUMBER, MBEDTLS_ASN1_PRINTABLE_STRING }, - { ADD_STRLEN( "postalAddress" ), - MBEDTLS_OID_AT_POSTAL_ADDRESS, MBEDTLS_ASN1_PRINTABLE_STRING }, - { ADD_STRLEN( "postalCode" ), - MBEDTLS_OID_AT_POSTAL_CODE, MBEDTLS_ASN1_PRINTABLE_STRING }, - { ADD_STRLEN( "dnQualifier" ), - MBEDTLS_OID_AT_DN_QUALIFIER, MBEDTLS_ASN1_PRINTABLE_STRING }, - { ADD_STRLEN( "title" ), - MBEDTLS_OID_AT_TITLE, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "surName" ), - MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "SN" ), - MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "givenName" ), - MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "GN" ), - MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "initials" ), - MBEDTLS_OID_AT_INITIALS, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "pseudonym" ), - MBEDTLS_OID_AT_PSEUDONYM, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "generationQualifier" ), - MBEDTLS_OID_AT_GENERATION_QUALIFIER, MBEDTLS_ASN1_UTF8_STRING }, - { ADD_STRLEN( "domainComponent" ), - MBEDTLS_OID_DOMAIN_COMPONENT, MBEDTLS_ASN1_IA5_STRING }, - { ADD_STRLEN( "DC" ), - MBEDTLS_OID_DOMAIN_COMPONENT, MBEDTLS_ASN1_IA5_STRING }, - { NULL, 0, NULL, MBEDTLS_ASN1_NULL } -}; - -static const x509_attr_descriptor_t *x509_attr_descr_from_name( const char *name, size_t name_len ) -{ - const x509_attr_descriptor_t *cur; - - for( cur = x509_attrs; cur->name != NULL; cur++ ) - if( cur->name_len == name_len && - strncmp( cur->name, name, name_len ) == 0 ) - break; - - if ( cur->name == NULL ) - return( NULL ); - - return( cur ); -} - -int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name ) -{ - int ret = 0; - const char *s = name, *c = s; - const char *end = s + strlen( s ); - const char *oid = NULL; - const x509_attr_descriptor_t* attr_descr = NULL; - int in_tag = 1; - char data[MBEDTLS_X509_MAX_DN_NAME_SIZE]; - char *d = data; - - /* Clear existing chain if present */ - mbedtls_asn1_free_named_data_list( head ); - - while( c <= end ) - { - if( in_tag && *c == '=' ) - { - if( ( attr_descr = x509_attr_descr_from_name( s, c - s ) ) == NULL ) - { - ret = MBEDTLS_ERR_X509_UNKNOWN_OID; - goto exit; - } - - oid = attr_descr->oid; - s = c + 1; - in_tag = 0; - d = data; - } - - if( !in_tag && *c == '\\' && c != end ) - { - c++; - - /* Check for valid escaped characters */ - if( c == end || *c != ',' ) - { - ret = MBEDTLS_ERR_X509_INVALID_NAME; - goto exit; - } - } - else if( !in_tag && ( *c == ',' || c == end ) ) - { - mbedtls_asn1_named_data* cur = - mbedtls_asn1_store_named_data( head, oid, strlen( oid ), - (unsigned char *) data, - d - data ); - - if(cur == NULL ) - { - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - } - - // set tagType - cur->val.tag = attr_descr->default_tag; - - while( c < end && *(c + 1) == ' ' ) - c++; - - s = c + 1; - in_tag = 1; - } - - if( !in_tag && s != c + 1 ) - { - *(d++) = *c; - - if( d - data == MBEDTLS_X509_MAX_DN_NAME_SIZE ) - { - ret = MBEDTLS_ERR_X509_INVALID_NAME; - goto exit; - } - } - - c++; - } - -exit: - - return( ret ); -} - -/* The first byte of the value in the mbedtls_asn1_named_data structure is reserved - * to store the critical boolean for us - */ -int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len, - int critical, const unsigned char *val, size_t val_len ) -{ - mbedtls_asn1_named_data *cur; - - if( ( cur = mbedtls_asn1_store_named_data( head, oid, oid_len, - NULL, val_len + 1 ) ) == NULL ) - { - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - } - - cur->val.p[0] = critical; - memcpy( cur->val.p + 1, val, val_len ); - - return( 0 ); -} - -/* - * RelativeDistinguishedName ::= - * SET OF AttributeTypeAndValue - * - * AttributeTypeAndValue ::= SEQUENCE { - * type AttributeType, - * value AttributeValue } - * - * AttributeType ::= OBJECT IDENTIFIER - * - * AttributeValue ::= ANY DEFINED BY AttributeType - */ -static int x509_write_name( unsigned char **p, unsigned char *start, mbedtls_asn1_named_data* cur_name) -{ - int ret; - size_t len = 0; - const char *oid = (const char*)cur_name->oid.p; - size_t oid_len = cur_name->oid.len; - const unsigned char *name = cur_name->val.p; - size_t name_len = cur_name->val.len; - - // Write correct string tag and value - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tagged_string( p, start, - cur_name->val.tag, - (const char *) name, - name_len ) ); - // Write OID - // - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, - oid_len ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, - MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, - MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SET ) ); - - return( (int) len ); -} - -int mbedtls_x509_write_names( unsigned char **p, unsigned char *start, - mbedtls_asn1_named_data *first ) -{ - int ret; - size_t len = 0; - mbedtls_asn1_named_data *cur = first; - - while( cur != NULL ) - { - MBEDTLS_ASN1_CHK_ADD( len, x509_write_name( p, start, cur ) ); - cur = cur->next; - } - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - return( (int) len ); -} - -int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start, - const char *oid, size_t oid_len, - unsigned char *sig, size_t size ) -{ - int ret; - size_t len = 0; - - if( *p < start || (size_t)( *p - start ) < size ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); - - len = size; - (*p) -= len; - memcpy( *p, sig, len ); - - if( *p - start < 1 ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); - - *--(*p) = 0; - len += 1; - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) ); - - // Write OID - // - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( p, start, oid, - oid_len, 0 ) ); - - return( (int) len ); -} - -static int x509_write_extension( unsigned char **p, unsigned char *start, - mbedtls_asn1_named_data *ext ) -{ - int ret; - size_t len = 0; - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->val.p + 1, - ext->val.len - 1 ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->val.len - 1 ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) ); - - if( ext->val.p[0] != 0 ) - { - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( p, start, 1 ) ); - } - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->oid.p, - ext->oid.len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->oid.len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - return( (int) len ); -} - -/* - * Extension ::= SEQUENCE { - * extnID OBJECT IDENTIFIER, - * critical BOOLEAN DEFAULT FALSE, - * extnValue OCTET STRING - * -- contains the DER encoding of an ASN.1 value - * -- corresponding to the extension type identified - * -- by extnID - * } - */ -int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start, - mbedtls_asn1_named_data *first ) -{ - int ret; - size_t len = 0; - mbedtls_asn1_named_data *cur_ext = first; - - while( cur_ext != NULL ) - { - MBEDTLS_ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) ); - cur_ext = cur_ext->next; - } - - return( (int) len ); -} - -#endif /* MBEDTLS_X509_CREATE_C */ diff --git a/library/x509_crl.c b/library/x509_crl.c deleted file mode 100644 index 8450f87e0..000000000 --- a/library/x509_crl.c +++ /dev/null @@ -1,773 +0,0 @@ -/* - * X.509 Certidicate Revocation List (CRL) parsing - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * The ITU-T X.509 standard defines a certificate format for PKI. - * - * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) - * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) - * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) - * - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_X509_CRL_PARSE_C) - -#include "mbedtls/x509_crl.h" -#include "mbedtls/oid.h" -#include "mbedtls/platform_util.h" - -#include - -#if defined(MBEDTLS_PEM_PARSE_C) -#include "mbedtls/pem.h" -#endif - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#include -#define mbedtls_free free -#define mbedtls_calloc calloc -#define mbedtls_snprintf snprintf -#endif - -#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) -#include -#else -#include -#endif - -#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32) -#include -#endif - -/* - * Version ::= INTEGER { v1(0), v2(1) } - */ -static int x509_crl_get_version( unsigned char **p, - const unsigned char *end, - int *ver ) -{ - int ret; - - if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - { - *ver = 0; - return( 0 ); - } - - return( MBEDTLS_ERR_X509_INVALID_VERSION + ret ); - } - - return( 0 ); -} - -/* - * X.509 CRL v2 extensions - * - * We currently don't parse any extension's content, but we do check that the - * list of extensions is well-formed and abort on critical extensions (that - * are unsupported as we don't support any extension so far) - */ -static int x509_get_crl_ext( unsigned char **p, - const unsigned char *end, - mbedtls_x509_buf *ext ) -{ - int ret; - - /* - * crlExtensions [0] EXPLICIT Extensions OPTIONAL - * -- if present, version MUST be v2 - */ - if( ( ret = mbedtls_x509_get_ext( p, end, ext, 0 ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( 0 ); - - return( ret ); - } - - while( *p < end ) - { - /* - * Extension ::= SEQUENCE { - * extnID OBJECT IDENTIFIER, - * critical BOOLEAN DEFAULT FALSE, - * extnValue OCTET STRING } - */ - int is_critical = 0; - const unsigned char *end_ext_data; - size_t len; - - /* Get enclosing sequence tag */ - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - end_ext_data = *p + len; - - /* Get OID (currently ignored) */ - if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len, - MBEDTLS_ASN1_OID ) ) != 0 ) - { - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - } - *p += len; - - /* Get optional critical */ - if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data, - &is_critical ) ) != 0 && - ( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) ) - { - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - } - - /* Data should be octet string type */ - if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len, - MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - /* Ignore data so far and just check its length */ - *p += len; - if( *p != end_ext_data ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - /* Abort on (unsupported) critical extensions */ - if( is_critical ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - } - - if( *p != end ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * X.509 CRL v2 entry extensions (no extensions parsed yet.) - */ -static int x509_get_crl_entry_ext( unsigned char **p, - const unsigned char *end, - mbedtls_x509_buf *ext ) -{ - int ret; - size_t len = 0; - - /* OPTIONAL */ - if( end <= *p ) - return( 0 ); - - ext->tag = **p; - ext->p = *p; - - /* - * Get CRL-entry extension sequence header - * crlEntryExtensions Extensions OPTIONAL -- if present, MUST be v2 - */ - if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - { - ext->p = NULL; - return( 0 ); - } - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - } - - end = *p + ext->len; - - if( end != *p + ext->len ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - while( *p < end ) - { - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - *p += len; - } - - if( *p != end ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * X.509 CRL Entries - */ -static int x509_get_entries( unsigned char **p, - const unsigned char *end, - mbedtls_x509_crl_entry *entry ) -{ - int ret; - size_t entry_len; - mbedtls_x509_crl_entry *cur_entry = entry; - - if( *p == end ) - return( 0 ); - - if( ( ret = mbedtls_asn1_get_tag( p, end, &entry_len, - MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( 0 ); - - return( ret ); - } - - end = *p + entry_len; - - while( *p < end ) - { - size_t len2; - const unsigned char *end2; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &len2, - MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 ) - { - return( ret ); - } - - cur_entry->raw.tag = **p; - cur_entry->raw.p = *p; - cur_entry->raw.len = len2; - end2 = *p + len2; - - if( ( ret = mbedtls_x509_get_serial( p, end2, &cur_entry->serial ) ) != 0 ) - return( ret ); - - if( ( ret = mbedtls_x509_get_time( p, end2, - &cur_entry->revocation_date ) ) != 0 ) - return( ret ); - - if( ( ret = x509_get_crl_entry_ext( p, end2, - &cur_entry->entry_ext ) ) != 0 ) - return( ret ); - - if( *p < end ) - { - cur_entry->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl_entry ) ); - - if( cur_entry->next == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - cur_entry = cur_entry->next; - } - } - - return( 0 ); -} - -/* - * Parse one CRLs in DER format and append it to the chained list - */ -int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain, - const unsigned char *buf, size_t buflen ) -{ - int ret; - size_t len; - unsigned char *p = NULL, *end = NULL; - mbedtls_x509_buf sig_params1, sig_params2, sig_oid2; - mbedtls_x509_crl *crl = chain; - - /* - * Check for valid input - */ - if( crl == NULL || buf == NULL ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) ); - memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) ); - memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) ); - - /* - * Add new CRL on the end of the chain if needed. - */ - while( crl->version != 0 && crl->next != NULL ) - crl = crl->next; - - if( crl->version != 0 && crl->next == NULL ) - { - crl->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) ); - - if( crl->next == NULL ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - } - - mbedtls_x509_crl_init( crl->next ); - crl = crl->next; - } - - /* - * Copy raw DER-encoded CRL - */ - if( buflen == 0 ) - return( MBEDTLS_ERR_X509_INVALID_FORMAT ); - - p = mbedtls_calloc( 1, buflen ); - if( p == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - memcpy( p, buf, buflen ); - - crl->raw.p = p; - crl->raw.len = buflen; - - end = p + buflen; - - /* - * CertificateList ::= SEQUENCE { - * tbsCertList TBSCertList, - * signatureAlgorithm AlgorithmIdentifier, - * signatureValue BIT STRING } - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT ); - } - - if( len != (size_t) ( end - p ) ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - - /* - * TBSCertList ::= SEQUENCE { - */ - crl->tbs.p = p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - end = p + len; - crl->tbs.len = end - crl->tbs.p; - - /* - * Version ::= INTEGER OPTIONAL { v1(0), v2(1) } - * -- if present, MUST be v2 - * - * signature AlgorithmIdentifier - */ - if( ( ret = x509_crl_get_version( &p, end, &crl->version ) ) != 0 || - ( ret = mbedtls_x509_get_alg( &p, end, &crl->sig_oid, &sig_params1 ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - - if( crl->version < 0 || crl->version > 1 ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_UNKNOWN_VERSION ); - } - - crl->version++; - - if( ( ret = mbedtls_x509_get_sig_alg( &crl->sig_oid, &sig_params1, - &crl->sig_md, &crl->sig_pk, - &crl->sig_opts ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG ); - } - - /* - * issuer Name - */ - crl->issuer_raw.p = p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - if( ( ret = mbedtls_x509_get_name( &p, p + len, &crl->issuer ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - - crl->issuer_raw.len = p - crl->issuer_raw.p; - - /* - * thisUpdate Time - * nextUpdate Time OPTIONAL - */ - if( ( ret = mbedtls_x509_get_time( &p, end, &crl->this_update ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - - if( ( ret = mbedtls_x509_get_time( &p, end, &crl->next_update ) ) != 0 ) - { - if( ret != ( MBEDTLS_ERR_X509_INVALID_DATE + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) && - ret != ( MBEDTLS_ERR_X509_INVALID_DATE + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ) ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - } - - /* - * revokedCertificates SEQUENCE OF SEQUENCE { - * userCertificate CertificateSerialNumber, - * revocationDate Time, - * crlEntryExtensions Extensions OPTIONAL - * -- if present, MUST be v2 - * } OPTIONAL - */ - if( ( ret = x509_get_entries( &p, end, &crl->entry ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - - /* - * crlExtensions EXPLICIT Extensions OPTIONAL - * -- if present, MUST be v2 - */ - if( crl->version == 2 ) - { - ret = x509_get_crl_ext( &p, end, &crl->crl_ext ); - - if( ret != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - } - - if( p != end ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - - end = crl->raw.p + crl->raw.len; - - /* - * signatureAlgorithm AlgorithmIdentifier, - * signatureValue BIT STRING - */ - if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - - if( crl->sig_oid.len != sig_oid2.len || - memcmp( crl->sig_oid.p, sig_oid2.p, crl->sig_oid.len ) != 0 || - sig_params1.len != sig_params2.len || - ( sig_params1.len != 0 && - memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_SIG_MISMATCH ); - } - - if( ( ret = mbedtls_x509_get_sig( &p, end, &crl->sig ) ) != 0 ) - { - mbedtls_x509_crl_free( crl ); - return( ret ); - } - - if( p != end ) - { - mbedtls_x509_crl_free( crl ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - - return( 0 ); -} - -/* - * Parse one or more CRLs and add them to the chained list - */ -int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen ) -{ -#if defined(MBEDTLS_PEM_PARSE_C) - int ret; - size_t use_len; - mbedtls_pem_context pem; - int is_pem = 0; - - if( chain == NULL || buf == NULL ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - do - { - mbedtls_pem_init( &pem ); - - // Avoid calling mbedtls_pem_read_buffer() on non-null-terminated - // string - if( buflen == 0 || buf[buflen - 1] != '\0' ) - ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; - else - ret = mbedtls_pem_read_buffer( &pem, - "-----BEGIN X509 CRL-----", - "-----END X509 CRL-----", - buf, NULL, 0, &use_len ); - - if( ret == 0 ) - { - /* - * Was PEM encoded - */ - is_pem = 1; - - buflen -= use_len; - buf += use_len; - - if( ( ret = mbedtls_x509_crl_parse_der( chain, - pem.buf, pem.buflen ) ) != 0 ) - { - mbedtls_pem_free( &pem ); - return( ret ); - } - } - else if( is_pem ) - { - mbedtls_pem_free( &pem ); - return( ret ); - } - - mbedtls_pem_free( &pem ); - } - /* In the PEM case, buflen is 1 at the end, for the terminated NULL byte. - * And a valid CRL cannot be less than 1 byte anyway. */ - while( is_pem && buflen > 1 ); - - if( is_pem ) - return( 0 ); - else -#endif /* MBEDTLS_PEM_PARSE_C */ - return( mbedtls_x509_crl_parse_der( chain, buf, buflen ) ); -} - -#if defined(MBEDTLS_FS_IO) -/* - * Load one or more CRLs and add them to the chained list - */ -int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path ) -{ - int ret; - size_t n; - unsigned char *buf; - - if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) - return( ret ); - - ret = mbedtls_x509_crl_parse( chain, buf, n ); - - mbedtls_platform_zeroize( buf, n ); - mbedtls_free( buf ); - - return( ret ); -} -#endif /* MBEDTLS_FS_IO */ - -/* - * Return an informational string about the certificate. - */ -#define BEFORE_COLON 14 -#define BC "14" -/* - * Return an informational string about the CRL. - */ -int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix, - const mbedtls_x509_crl *crl ) -{ - int ret; - size_t n; - char *p; - const mbedtls_x509_crl_entry *entry; - - p = buf; - n = size; - - ret = mbedtls_snprintf( p, n, "%sCRL version : %d", - prefix, crl->version ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%sissuer name : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - ret = mbedtls_x509_dn_gets( p, n, &crl->issuer ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%sthis update : " \ - "%04d-%02d-%02d %02d:%02d:%02d", prefix, - crl->this_update.year, crl->this_update.mon, - crl->this_update.day, crl->this_update.hour, - crl->this_update.min, crl->this_update.sec ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%snext update : " \ - "%04d-%02d-%02d %02d:%02d:%02d", prefix, - crl->next_update.year, crl->next_update.mon, - crl->next_update.day, crl->next_update.hour, - crl->next_update.min, crl->next_update.sec ); - MBEDTLS_X509_SAFE_SNPRINTF; - - entry = &crl->entry; - - ret = mbedtls_snprintf( p, n, "\n%sRevoked certificates:", - prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - while( entry != NULL && entry->raw.len != 0 ) - { - ret = mbedtls_snprintf( p, n, "\n%sserial number: ", - prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_x509_serial_gets( p, n, &entry->serial ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, " revocation date: " \ - "%04d-%02d-%02d %02d:%02d:%02d", - entry->revocation_date.year, entry->revocation_date.mon, - entry->revocation_date.day, entry->revocation_date.hour, - entry->revocation_date.min, entry->revocation_date.sec ); - MBEDTLS_X509_SAFE_SNPRINTF; - - entry = entry->next; - } - - ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_x509_sig_alg_gets( p, n, &crl->sig_oid, crl->sig_pk, crl->sig_md, - crl->sig_opts ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n" ); - MBEDTLS_X509_SAFE_SNPRINTF; - - return( (int) ( size - n ) ); -} - -/* - * Initialize a CRL chain - */ -void mbedtls_x509_crl_init( mbedtls_x509_crl *crl ) -{ - memset( crl, 0, sizeof(mbedtls_x509_crl) ); -} - -/* - * Unallocate all CRL data - */ -void mbedtls_x509_crl_free( mbedtls_x509_crl *crl ) -{ - mbedtls_x509_crl *crl_cur = crl; - mbedtls_x509_crl *crl_prv; - mbedtls_x509_name *name_cur; - mbedtls_x509_name *name_prv; - mbedtls_x509_crl_entry *entry_cur; - mbedtls_x509_crl_entry *entry_prv; - - if( crl == NULL ) - return; - - do - { -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) - mbedtls_free( crl_cur->sig_opts ); -#endif - - name_cur = crl_cur->issuer.next; - while( name_cur != NULL ) - { - name_prv = name_cur; - name_cur = name_cur->next; - mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); - mbedtls_free( name_prv ); - } - - entry_cur = crl_cur->entry.next; - while( entry_cur != NULL ) - { - entry_prv = entry_cur; - entry_cur = entry_cur->next; - mbedtls_platform_zeroize( entry_prv, - sizeof( mbedtls_x509_crl_entry ) ); - mbedtls_free( entry_prv ); - } - - if( crl_cur->raw.p != NULL ) - { - mbedtls_platform_zeroize( crl_cur->raw.p, crl_cur->raw.len ); - mbedtls_free( crl_cur->raw.p ); - } - - crl_cur = crl_cur->next; - } - while( crl_cur != NULL ); - - crl_cur = crl; - do - { - crl_prv = crl_cur; - crl_cur = crl_cur->next; - - mbedtls_platform_zeroize( crl_prv, sizeof( mbedtls_x509_crl ) ); - if( crl_prv != crl ) - mbedtls_free( crl_prv ); - } - while( crl_cur != NULL ); -} - -#endif /* MBEDTLS_X509_CRL_PARSE_C */ diff --git a/library/x509_crt.c b/library/x509_crt.c deleted file mode 100644 index 605d8efd8..000000000 --- a/library/x509_crt.c +++ /dev/null @@ -1,2879 +0,0 @@ -/* - * X.509 certificate parsing and verification - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * The ITU-T X.509 standard defines a certificate format for PKI. - * - * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) - * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) - * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) - * - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf - * - * [SIRO] https://cabforum.org/wp-content/uploads/Chunghwatelecom201503cabforumV4.pdf - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_X509_CRT_PARSE_C) - -#include "mbedtls/x509_crt.h" -#include "mbedtls/oid.h" -#include "mbedtls/platform_util.h" - -#include - -#if defined(MBEDTLS_PEM_PARSE_C) -#include "mbedtls/pem.h" -#endif - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "psa/crypto.h" -#include "mbedtls/psa_util.h" -#endif - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#include -#define mbedtls_free free -#define mbedtls_calloc calloc -#define mbedtls_snprintf snprintf -#endif - -#if defined(MBEDTLS_THREADING_C) -#include "mbedtls/threading.h" -#endif - -#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) -#include -#else -#include -#endif - -#if defined(MBEDTLS_FS_IO) -#include -#if !defined(_WIN32) || defined(EFIX64) || defined(EFI32) -#include -#include -#include -#endif /* !_WIN32 || EFIX64 || EFI32 */ -#endif - -/* - * Item in a verification chain: cert and flags for it - */ -typedef struct { - mbedtls_x509_crt *crt; - uint32_t flags; -} x509_crt_verify_chain_item; - -/* - * Max size of verification chain: end-entity + intermediates + trusted root - */ -#define X509_MAX_VERIFY_CHAIN_SIZE ( MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2 ) - -/* - * Default profile - */ -const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default = -{ -#if defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES) - /* Allow SHA-1 (weak, but still safe in controlled environments) */ - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA1 ) | -#endif - /* Only SHA-2 hashes */ - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA224 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ), - 0xFFFFFFF, /* Any PK alg */ - 0xFFFFFFF, /* Any curve */ - 2048, -}; - -/* - * Next-default profile - */ -const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next = -{ - /* Hashes from SHA-256 and above */ - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ), - 0xFFFFFFF, /* Any PK alg */ -#if defined(MBEDTLS_ECP_C) - /* Curves at or above 128-bit security level */ - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP521R1 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP256R1 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP384R1 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP512R1 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256K1 ), -#else - 0, -#endif - 2048, -}; - -/* - * NSA Suite B Profile - */ -const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb = -{ - /* Only SHA-256 and 384 */ - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ), - /* Only ECDSA */ - MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_ECDSA ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_ECKEY ), -#if defined(MBEDTLS_ECP_C) - /* Only NIST P-256 and P-384 */ - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) | - MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ), -#else - 0, -#endif - 0, -}; - -/* - * Check md_alg against profile - * Return 0 if md_alg is acceptable for this profile, -1 otherwise - */ -static int x509_profile_check_md_alg( const mbedtls_x509_crt_profile *profile, - mbedtls_md_type_t md_alg ) -{ - if( md_alg == MBEDTLS_MD_NONE ) - return( -1 ); - - if( ( profile->allowed_mds & MBEDTLS_X509_ID_FLAG( md_alg ) ) != 0 ) - return( 0 ); - - return( -1 ); -} - -/* - * Check pk_alg against profile - * Return 0 if pk_alg is acceptable for this profile, -1 otherwise - */ -static int x509_profile_check_pk_alg( const mbedtls_x509_crt_profile *profile, - mbedtls_pk_type_t pk_alg ) -{ - if( pk_alg == MBEDTLS_PK_NONE ) - return( -1 ); - - if( ( profile->allowed_pks & MBEDTLS_X509_ID_FLAG( pk_alg ) ) != 0 ) - return( 0 ); - - return( -1 ); -} - -/* - * Check key against profile - * Return 0 if pk is acceptable for this profile, -1 otherwise - */ -static int x509_profile_check_key( const mbedtls_x509_crt_profile *profile, - const mbedtls_pk_context *pk ) -{ - const mbedtls_pk_type_t pk_alg = mbedtls_pk_get_type( pk ); - -#if defined(MBEDTLS_RSA_C) - if( pk_alg == MBEDTLS_PK_RSA || pk_alg == MBEDTLS_PK_RSASSA_PSS ) - { - if( mbedtls_pk_get_bitlen( pk ) >= profile->rsa_min_bitlen ) - return( 0 ); - - return( -1 ); - } -#endif - -#if defined(MBEDTLS_ECP_C) - if( pk_alg == MBEDTLS_PK_ECDSA || - pk_alg == MBEDTLS_PK_ECKEY || - pk_alg == MBEDTLS_PK_ECKEY_DH ) - { - const mbedtls_ecp_group_id gid = mbedtls_pk_ec( *pk )->grp.id; - - if( gid == MBEDTLS_ECP_DP_NONE ) - return( -1 ); - - if( ( profile->allowed_curves & MBEDTLS_X509_ID_FLAG( gid ) ) != 0 ) - return( 0 ); - - return( -1 ); - } -#endif - - return( -1 ); -} - -/* - * Like memcmp, but case-insensitive and always returns -1 if different - */ -static int x509_memcasecmp( const void *s1, const void *s2, size_t len ) -{ - size_t i; - unsigned char diff; - const unsigned char *n1 = s1, *n2 = s2; - - for( i = 0; i < len; i++ ) - { - diff = n1[i] ^ n2[i]; - - if( diff == 0 ) - continue; - - if( diff == 32 && - ( ( n1[i] >= 'a' && n1[i] <= 'z' ) || - ( n1[i] >= 'A' && n1[i] <= 'Z' ) ) ) - { - continue; - } - - return( -1 ); - } - - return( 0 ); -} - -/* - * Return 0 if name matches wildcard, -1 otherwise - */ -static int x509_check_wildcard( const char *cn, const mbedtls_x509_buf *name ) -{ - size_t i; - size_t cn_idx = 0, cn_len = strlen( cn ); - - /* We can't have a match if there is no wildcard to match */ - if( name->len < 3 || name->p[0] != '*' || name->p[1] != '.' ) - return( -1 ); - - for( i = 0; i < cn_len; ++i ) - { - if( cn[i] == '.' ) - { - cn_idx = i; - break; - } - } - - if( cn_idx == 0 ) - return( -1 ); - - if( cn_len - cn_idx == name->len - 1 && - x509_memcasecmp( name->p + 1, cn + cn_idx, name->len - 1 ) == 0 ) - { - return( 0 ); - } - - return( -1 ); -} - -/* - * Compare two X.509 strings, case-insensitive, and allowing for some encoding - * variations (but not all). - * - * Return 0 if equal, -1 otherwise. - */ -static int x509_string_cmp( const mbedtls_x509_buf *a, const mbedtls_x509_buf *b ) -{ - if( a->tag == b->tag && - a->len == b->len && - memcmp( a->p, b->p, b->len ) == 0 ) - { - return( 0 ); - } - - if( ( a->tag == MBEDTLS_ASN1_UTF8_STRING || a->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) && - ( b->tag == MBEDTLS_ASN1_UTF8_STRING || b->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) && - a->len == b->len && - x509_memcasecmp( a->p, b->p, b->len ) == 0 ) - { - return( 0 ); - } - - return( -1 ); -} - -/* - * Compare two X.509 Names (aka rdnSequence). - * - * See RFC 5280 section 7.1, though we don't implement the whole algorithm: - * we sometimes return unequal when the full algorithm would return equal, - * but never the other way. (In particular, we don't do Unicode normalisation - * or space folding.) - * - * Return 0 if equal, -1 otherwise. - */ -static int x509_name_cmp( const mbedtls_x509_name *a, const mbedtls_x509_name *b ) -{ - /* Avoid recursion, it might not be optimised by the compiler */ - while( a != NULL || b != NULL ) - { - if( a == NULL || b == NULL ) - return( -1 ); - - /* type */ - if( a->oid.tag != b->oid.tag || - a->oid.len != b->oid.len || - memcmp( a->oid.p, b->oid.p, b->oid.len ) != 0 ) - { - return( -1 ); - } - - /* value */ - if( x509_string_cmp( &a->val, &b->val ) != 0 ) - return( -1 ); - - /* structure of the list of sets */ - if( a->next_merged != b->next_merged ) - return( -1 ); - - a = a->next; - b = b->next; - } - - /* a == NULL == b */ - return( 0 ); -} - -/* - * Reset (init or clear) a verify_chain - */ -static void x509_crt_verify_chain_reset( - mbedtls_x509_crt_verify_chain *ver_chain ) -{ - size_t i; - - for( i = 0; i < MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE; i++ ) - { - ver_chain->items[i].crt = NULL; - ver_chain->items[i].flags = (uint32_t) -1; - } - - ver_chain->len = 0; - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - ver_chain->trust_ca_cb_result = NULL; -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ -} - -/* - * Version ::= INTEGER { v1(0), v2(1), v3(2) } - */ -static int x509_get_version( unsigned char **p, - const unsigned char *end, - int *ver ) -{ - int ret; - size_t len; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - { - *ver = 0; - return( 0 ); - } - - return( ret ); - } - - end = *p + len; - - if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_VERSION + ret ); - - if( *p != end ) - return( MBEDTLS_ERR_X509_INVALID_VERSION + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * Validity ::= SEQUENCE { - * notBefore Time, - * notAfter Time } - */ -static int x509_get_dates( unsigned char **p, - const unsigned char *end, - mbedtls_x509_time *from, - mbedtls_x509_time *to ) -{ - int ret; - size_t len; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_DATE + ret ); - - end = *p + len; - - if( ( ret = mbedtls_x509_get_time( p, end, from ) ) != 0 ) - return( ret ); - - if( ( ret = mbedtls_x509_get_time( p, end, to ) ) != 0 ) - return( ret ); - - if( *p != end ) - return( MBEDTLS_ERR_X509_INVALID_DATE + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * X.509 v2/v3 unique identifier (not parsed) - */ -static int x509_get_uid( unsigned char **p, - const unsigned char *end, - mbedtls_x509_buf *uid, int n ) -{ - int ret; - - if( *p == end ) - return( 0 ); - - uid->tag = **p; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &uid->len, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | n ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( 0 ); - - return( ret ); - } - - uid->p = *p; - *p += uid->len; - - return( 0 ); -} - -static int x509_get_basic_constraints( unsigned char **p, - const unsigned char *end, - int *ca_istrue, - int *max_pathlen ) -{ - int ret; - size_t len; - - /* - * BasicConstraints ::= SEQUENCE { - * cA BOOLEAN DEFAULT FALSE, - * pathLenConstraint INTEGER (0..MAX) OPTIONAL } - */ - *ca_istrue = 0; /* DEFAULT FALSE */ - *max_pathlen = 0; /* endless */ - - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( *p == end ) - return( 0 ); - - if( ( ret = mbedtls_asn1_get_bool( p, end, ca_istrue ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - ret = mbedtls_asn1_get_int( p, end, ca_istrue ); - - if( ret != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( *ca_istrue != 0 ) - *ca_istrue = 1; - } - - if( *p == end ) - return( 0 ); - - if( ( ret = mbedtls_asn1_get_int( p, end, max_pathlen ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( *p != end ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - (*max_pathlen)++; - - return( 0 ); -} - -static int x509_get_ns_cert_type( unsigned char **p, - const unsigned char *end, - unsigned char *ns_cert_type) -{ - int ret; - mbedtls_x509_bitstring bs = { 0, 0, NULL }; - - if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( bs.len != 1 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_INVALID_LENGTH ); - - /* Get actual bitstring */ - *ns_cert_type = *bs.p; - return( 0 ); -} - -static int x509_get_key_usage( unsigned char **p, - const unsigned char *end, - unsigned int *key_usage) -{ - int ret; - size_t i; - mbedtls_x509_bitstring bs = { 0, 0, NULL }; - - if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( bs.len < 1 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_INVALID_LENGTH ); - - /* Get actual bitstring */ - *key_usage = 0; - for( i = 0; i < bs.len && i < sizeof( unsigned int ); i++ ) - { - *key_usage |= (unsigned int) bs.p[i] << (8*i); - } - - return( 0 ); -} - -/* - * ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId - * - * KeyPurposeId ::= OBJECT IDENTIFIER - */ -static int x509_get_ext_key_usage( unsigned char **p, - const unsigned char *end, - mbedtls_x509_sequence *ext_key_usage) -{ - int ret; - - if( ( ret = mbedtls_asn1_get_sequence_of( p, end, ext_key_usage, MBEDTLS_ASN1_OID ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - /* Sequence length must be >= 1 */ - if( ext_key_usage->buf.p == NULL ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_INVALID_LENGTH ); - - return( 0 ); -} - -/* - * SubjectAltName ::= GeneralNames - * - * GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName - * - * GeneralName ::= CHOICE { - * otherName [0] OtherName, - * rfc822Name [1] IA5String, - * dNSName [2] IA5String, - * x400Address [3] ORAddress, - * directoryName [4] Name, - * ediPartyName [5] EDIPartyName, - * uniformResourceIdentifier [6] IA5String, - * iPAddress [7] OCTET STRING, - * registeredID [8] OBJECT IDENTIFIER } - * - * OtherName ::= SEQUENCE { - * type-id OBJECT IDENTIFIER, - * value [0] EXPLICIT ANY DEFINED BY type-id } - * - * EDIPartyName ::= SEQUENCE { - * nameAssigner [0] DirectoryString OPTIONAL, - * partyName [1] DirectoryString } - * - * NOTE: we only parse and use dNSName at this point. - */ -static int x509_get_subject_alt_name( unsigned char **p, - const unsigned char *end, - mbedtls_x509_sequence *subject_alt_name ) -{ - int ret; - size_t len, tag_len; - mbedtls_asn1_buf *buf; - unsigned char tag; - mbedtls_asn1_sequence *cur = subject_alt_name; - - /* Get main sequence tag */ - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( *p + len != end ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - while( *p < end ) - { - if( ( end - *p ) < 1 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_OUT_OF_DATA ); - - tag = **p; - (*p)++; - if( ( ret = mbedtls_asn1_get_len( p, end, &tag_len ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - if( ( tag & MBEDTLS_ASN1_TAG_CLASS_MASK ) != - MBEDTLS_ASN1_CONTEXT_SPECIFIC ) - { - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - } - - /* Skip everything but DNS name */ - if( tag != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | 2 ) ) - { - *p += tag_len; - continue; - } - - /* Allocate and assign next pointer */ - if( cur->buf.p != NULL ) - { - if( cur->next != NULL ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS ); - - cur->next = mbedtls_calloc( 1, sizeof( mbedtls_asn1_sequence ) ); - - if( cur->next == NULL ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_ALLOC_FAILED ); - - cur = cur->next; - } - - buf = &(cur->buf); - buf->tag = tag; - buf->p = *p; - buf->len = tag_len; - *p += buf->len; - } - - /* Set final sequence entry's next pointer to NULL */ - cur->next = NULL; - - if( *p != end ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * X.509 v3 extensions - * - */ -static int x509_get_crt_ext( unsigned char **p, - const unsigned char *end, - mbedtls_x509_crt *crt ) -{ - int ret; - size_t len; - unsigned char *end_ext_data, *end_ext_octet; - - if( ( ret = mbedtls_x509_get_ext( p, end, &crt->v3_ext, 3 ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( 0 ); - - return( ret ); - } - - while( *p < end ) - { - /* - * Extension ::= SEQUENCE { - * extnID OBJECT IDENTIFIER, - * critical BOOLEAN DEFAULT FALSE, - * extnValue OCTET STRING } - */ - mbedtls_x509_buf extn_oid = {0, 0, NULL}; - int is_critical = 0; /* DEFAULT FALSE */ - int ext_type = 0; - - if( ( ret = mbedtls_asn1_get_tag( p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - end_ext_data = *p + len; - - /* Get extension ID */ - if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &extn_oid.len, - MBEDTLS_ASN1_OID ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - extn_oid.tag = MBEDTLS_ASN1_OID; - extn_oid.p = *p; - *p += extn_oid.len; - - /* Get optional critical */ - if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data, &is_critical ) ) != 0 && - ( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - /* Data should be octet string type */ - if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len, - MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret ); - - end_ext_octet = *p + len; - - if( end_ext_octet != end_ext_data ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - /* - * Detect supported extensions - */ - ret = mbedtls_oid_get_x509_ext_type( &extn_oid, &ext_type ); - - if( ret != 0 ) - { - /* No parser found, skip extension */ - *p = end_ext_octet; - -#if !defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION) - if( is_critical ) - { - /* Data is marked as critical: fail */ - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ); - } -#endif - continue; - } - - /* Forbid repeated extensions */ - if( ( crt->ext_types & ext_type ) != 0 ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS ); - - crt->ext_types |= ext_type; - - switch( ext_type ) - { - case MBEDTLS_X509_EXT_BASIC_CONSTRAINTS: - /* Parse basic constraints */ - if( ( ret = x509_get_basic_constraints( p, end_ext_octet, - &crt->ca_istrue, &crt->max_pathlen ) ) != 0 ) - return( ret ); - break; - - case MBEDTLS_X509_EXT_KEY_USAGE: - /* Parse key usage */ - if( ( ret = x509_get_key_usage( p, end_ext_octet, - &crt->key_usage ) ) != 0 ) - return( ret ); - break; - - case MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE: - /* Parse extended key usage */ - if( ( ret = x509_get_ext_key_usage( p, end_ext_octet, - &crt->ext_key_usage ) ) != 0 ) - return( ret ); - break; - - case MBEDTLS_X509_EXT_SUBJECT_ALT_NAME: - /* Parse subject alt name */ - if( ( ret = x509_get_subject_alt_name( p, end_ext_octet, - &crt->subject_alt_names ) ) != 0 ) - return( ret ); - break; - - case MBEDTLS_X509_EXT_NS_CERT_TYPE: - /* Parse netscape certificate type */ - if( ( ret = x509_get_ns_cert_type( p, end_ext_octet, - &crt->ns_cert_type ) ) != 0 ) - return( ret ); - break; - - default: - /* - * If this is a non-critical extension, which the oid layer - * supports, but there isn't an x509 parser for it, - * skip the extension. - */ -#if !defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION) - if( is_critical ) - return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE ); - else -#endif - *p = end_ext_octet; - } - } - - if( *p != end ) - return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -/* - * Parse and fill a single X.509 certificate in DER format - */ -static int x509_crt_parse_der_core( mbedtls_x509_crt *crt, - const unsigned char *buf, - size_t buflen, - int make_copy ) -{ - int ret; - size_t len; - unsigned char *p, *end, *crt_end; - mbedtls_x509_buf sig_params1, sig_params2, sig_oid2; - - memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) ); - memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) ); - memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) ); - - /* - * Check for valid input - */ - if( crt == NULL || buf == NULL ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - /* Use the original buffer until we figure out actual length. */ - p = (unsigned char*) buf; - len = buflen; - end = p + len; - - /* - * Certificate ::= SEQUENCE { - * tbsCertificate TBSCertificate, - * signatureAlgorithm AlgorithmIdentifier, - * signatureValue BIT STRING } - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT ); - } - - end = crt_end = p + len; - crt->raw.len = crt_end - buf; - if( make_copy != 0 ) - { - /* Create and populate a new buffer for the raw field. */ - crt->raw.p = p = mbedtls_calloc( 1, crt->raw.len ); - if( crt->raw.p == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - memcpy( crt->raw.p, buf, crt->raw.len ); - crt->own_buffer = 1; - - p += crt->raw.len - len; - end = crt_end = p + len; - } - else - { - crt->raw.p = (unsigned char*) buf; - crt->own_buffer = 0; - } - - /* - * TBSCertificate ::= SEQUENCE { - */ - crt->tbs.p = p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - end = p + len; - crt->tbs.len = end - crt->tbs.p; - - /* - * Version ::= INTEGER { v1(0), v2(1), v3(2) } - * - * CertificateSerialNumber ::= INTEGER - * - * signature AlgorithmIdentifier - */ - if( ( ret = x509_get_version( &p, end, &crt->version ) ) != 0 || - ( ret = mbedtls_x509_get_serial( &p, end, &crt->serial ) ) != 0 || - ( ret = mbedtls_x509_get_alg( &p, end, &crt->sig_oid, - &sig_params1 ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - - if( crt->version < 0 || crt->version > 2 ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_UNKNOWN_VERSION ); - } - - crt->version++; - - if( ( ret = mbedtls_x509_get_sig_alg( &crt->sig_oid, &sig_params1, - &crt->sig_md, &crt->sig_pk, - &crt->sig_opts ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - - /* - * issuer Name - */ - crt->issuer_raw.p = p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - if( ( ret = mbedtls_x509_get_name( &p, p + len, &crt->issuer ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - - crt->issuer_raw.len = p - crt->issuer_raw.p; - - /* - * Validity ::= SEQUENCE { - * notBefore Time, - * notAfter Time } - * - */ - if( ( ret = x509_get_dates( &p, end, &crt->valid_from, - &crt->valid_to ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - - /* - * subject Name - */ - crt->subject_raw.p = p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - if( len && ( ret = mbedtls_x509_get_name( &p, p + len, &crt->subject ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - - crt->subject_raw.len = p - crt->subject_raw.p; - - /* - * SubjectPublicKeyInfo - */ - crt->pk_raw.p = p; - if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &crt->pk ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - crt->pk_raw.len = p - crt->pk_raw.p; - - /* - * issuerUniqueID [1] IMPLICIT UniqueIdentifier OPTIONAL, - * -- If present, version shall be v2 or v3 - * subjectUniqueID [2] IMPLICIT UniqueIdentifier OPTIONAL, - * -- If present, version shall be v2 or v3 - * extensions [3] EXPLICIT Extensions OPTIONAL - * -- If present, version shall be v3 - */ - if( crt->version == 2 || crt->version == 3 ) - { - ret = x509_get_uid( &p, end, &crt->issuer_id, 1 ); - if( ret != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - } - - if( crt->version == 2 || crt->version == 3 ) - { - ret = x509_get_uid( &p, end, &crt->subject_id, 2 ); - if( ret != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - } - -#if !defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3) - if( crt->version == 3 ) -#endif - { - ret = x509_get_crt_ext( &p, end, crt ); - if( ret != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - } - - if( p != end ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - - end = crt_end; - - /* - * } - * -- end of TBSCertificate - * - * signatureAlgorithm AlgorithmIdentifier, - * signatureValue BIT STRING - */ - if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - - if( crt->sig_oid.len != sig_oid2.len || - memcmp( crt->sig_oid.p, sig_oid2.p, crt->sig_oid.len ) != 0 || - sig_params1.len != sig_params2.len || - ( sig_params1.len != 0 && - memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_SIG_MISMATCH ); - } - - if( ( ret = mbedtls_x509_get_sig( &p, end, &crt->sig ) ) != 0 ) - { - mbedtls_x509_crt_free( crt ); - return( ret ); - } - - if( p != end ) - { - mbedtls_x509_crt_free( crt ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - - return( 0 ); -} - -/* - * Parse one X.509 certificate in DER format from a buffer and add them to a - * chained list - */ -static int mbedtls_x509_crt_parse_der_internal( mbedtls_x509_crt *chain, - const unsigned char *buf, - size_t buflen, - int make_copy ) -{ - int ret; - mbedtls_x509_crt *crt = chain, *prev = NULL; - - /* - * Check for valid input - */ - if( crt == NULL || buf == NULL ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - while( crt->version != 0 && crt->next != NULL ) - { - prev = crt; - crt = crt->next; - } - - /* - * Add new certificate on the end of the chain if needed. - */ - if( crt->version != 0 && crt->next == NULL ) - { - crt->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ); - - if( crt->next == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - prev = crt; - mbedtls_x509_crt_init( crt->next ); - crt = crt->next; - } - - if( ( ret = x509_crt_parse_der_core( crt, buf, buflen, make_copy ) ) != 0 ) - { - if( prev ) - prev->next = NULL; - - if( crt != chain ) - mbedtls_free( crt ); - - return( ret ); - } - - return( 0 ); -} - -int mbedtls_x509_crt_parse_der_nocopy( mbedtls_x509_crt *chain, - const unsigned char *buf, - size_t buflen ) -{ - return( mbedtls_x509_crt_parse_der_internal( chain, buf, buflen, 0 ) ); -} - -int mbedtls_x509_crt_parse_der( mbedtls_x509_crt *chain, - const unsigned char *buf, - size_t buflen ) -{ - return( mbedtls_x509_crt_parse_der_internal( chain, buf, buflen, 1 ) ); -} - -/* - * Parse one or more PEM certificates from a buffer and add them to the chained - * list - */ -int mbedtls_x509_crt_parse( mbedtls_x509_crt *chain, - const unsigned char *buf, - size_t buflen ) -{ -#if defined(MBEDTLS_PEM_PARSE_C) - int success = 0, first_error = 0, total_failed = 0; - int buf_format = MBEDTLS_X509_FORMAT_DER; -#endif - - /* - * Check for valid input - */ - if( chain == NULL || buf == NULL ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - /* - * Determine buffer content. Buffer contains either one DER certificate or - * one or more PEM certificates. - */ -#if defined(MBEDTLS_PEM_PARSE_C) - if( buflen != 0 && buf[buflen - 1] == '\0' && - strstr( (const char *) buf, "-----BEGIN CERTIFICATE-----" ) != NULL ) - { - buf_format = MBEDTLS_X509_FORMAT_PEM; - } - - if( buf_format == MBEDTLS_X509_FORMAT_DER ) - return mbedtls_x509_crt_parse_der( chain, buf, buflen ); -#else - return mbedtls_x509_crt_parse_der( chain, buf, buflen ); -#endif - -#if defined(MBEDTLS_PEM_PARSE_C) - if( buf_format == MBEDTLS_X509_FORMAT_PEM ) - { - int ret; - mbedtls_pem_context pem; - - /* 1 rather than 0 since the terminating NULL byte is counted in */ - while( buflen > 1 ) - { - size_t use_len; - mbedtls_pem_init( &pem ); - - /* If we get there, we know the string is null-terminated */ - ret = mbedtls_pem_read_buffer( &pem, - "-----BEGIN CERTIFICATE-----", - "-----END CERTIFICATE-----", - buf, NULL, 0, &use_len ); - - if( ret == 0 ) - { - /* - * Was PEM encoded - */ - buflen -= use_len; - buf += use_len; - } - else if( ret == MBEDTLS_ERR_PEM_BAD_INPUT_DATA ) - { - return( ret ); - } - else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) - { - mbedtls_pem_free( &pem ); - - /* - * PEM header and footer were found - */ - buflen -= use_len; - buf += use_len; - - if( first_error == 0 ) - first_error = ret; - - total_failed++; - continue; - } - else - break; - - ret = mbedtls_x509_crt_parse_der( chain, pem.buf, pem.buflen ); - - mbedtls_pem_free( &pem ); - - if( ret != 0 ) - { - /* - * Quit parsing on a memory error - */ - if( ret == MBEDTLS_ERR_X509_ALLOC_FAILED ) - return( ret ); - - if( first_error == 0 ) - first_error = ret; - - total_failed++; - continue; - } - - success = 1; - } - } - - if( success ) - return( total_failed ); - else if( first_error ) - return( first_error ); - else - return( MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT ); -#endif /* MBEDTLS_PEM_PARSE_C */ -} - -#if defined(MBEDTLS_FS_IO) -/* - * Load one or more certificates and add them to the chained list - */ -int mbedtls_x509_crt_parse_file( mbedtls_x509_crt *chain, const char *path ) -{ - int ret; - size_t n; - unsigned char *buf; - - if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) - return( ret ); - - ret = mbedtls_x509_crt_parse( chain, buf, n ); - - mbedtls_platform_zeroize( buf, n ); - mbedtls_free( buf ); - - return( ret ); -} - -int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path ) -{ - int ret = 0; -#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) - int w_ret; - WCHAR szDir[MAX_PATH]; - char filename[MAX_PATH]; - char *p; - size_t len = strlen( path ); - - WIN32_FIND_DATAW file_data; - HANDLE hFind; - - if( len > MAX_PATH - 3 ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - memset( szDir, 0, sizeof(szDir) ); - memset( filename, 0, MAX_PATH ); - memcpy( filename, path, len ); - filename[len++] = '\\'; - p = filename + len; - filename[len++] = '*'; - - w_ret = MultiByteToWideChar( CP_ACP, 0, filename, (int)len, szDir, - MAX_PATH - 3 ); - if( w_ret == 0 ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - hFind = FindFirstFileW( szDir, &file_data ); - if( hFind == INVALID_HANDLE_VALUE ) - return( MBEDTLS_ERR_X509_FILE_IO_ERROR ); - - len = MAX_PATH - len; - do - { - memset( p, 0, len ); - - if( file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) - continue; - - w_ret = WideCharToMultiByte( CP_ACP, 0, file_data.cFileName, - lstrlenW( file_data.cFileName ), - p, (int) len - 1, - NULL, NULL ); - if( w_ret == 0 ) - { - ret = MBEDTLS_ERR_X509_FILE_IO_ERROR; - goto cleanup; - } - - w_ret = mbedtls_x509_crt_parse_file( chain, filename ); - if( w_ret < 0 ) - ret++; - else - ret += w_ret; - } - while( FindNextFileW( hFind, &file_data ) != 0 ); - - if( GetLastError() != ERROR_NO_MORE_FILES ) - ret = MBEDTLS_ERR_X509_FILE_IO_ERROR; - -cleanup: - FindClose( hFind ); -#else /* _WIN32 */ - int t_ret; - int snp_ret; - struct stat sb; - struct dirent *entry; - char entry_name[MBEDTLS_X509_MAX_FILE_PATH_LEN]; - DIR *dir = opendir( path ); - - if( dir == NULL ) - return( MBEDTLS_ERR_X509_FILE_IO_ERROR ); - -#if defined(MBEDTLS_THREADING_C) - if( ( ret = mbedtls_mutex_lock( &mbedtls_threading_readdir_mutex ) ) != 0 ) - { - closedir( dir ); - return( ret ); - } -#endif /* MBEDTLS_THREADING_C */ - - while( ( entry = readdir( dir ) ) != NULL ) - { - snp_ret = mbedtls_snprintf( entry_name, sizeof entry_name, - "%s/%s", path, entry->d_name ); - - if( snp_ret < 0 || (size_t)snp_ret >= sizeof entry_name ) - { - ret = MBEDTLS_ERR_X509_BUFFER_TOO_SMALL; - goto cleanup; - } - else if( stat( entry_name, &sb ) == -1 ) - { - ret = MBEDTLS_ERR_X509_FILE_IO_ERROR; - goto cleanup; - } - - if( !S_ISREG( sb.st_mode ) ) - continue; - - // Ignore parse errors - // - t_ret = mbedtls_x509_crt_parse_file( chain, entry_name ); - if( t_ret < 0 ) - ret++; - else - ret += t_ret; - } - -cleanup: - closedir( dir ); - -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &mbedtls_threading_readdir_mutex ) != 0 ) - ret = MBEDTLS_ERR_THREADING_MUTEX_ERROR; -#endif /* MBEDTLS_THREADING_C */ - -#endif /* _WIN32 */ - - return( ret ); -} -#endif /* MBEDTLS_FS_IO */ - -static int x509_info_subject_alt_name( char **buf, size_t *size, - const mbedtls_x509_sequence *subject_alt_name ) -{ - size_t i; - size_t n = *size; - char *p = *buf; - const mbedtls_x509_sequence *cur = subject_alt_name; - const char *sep = ""; - size_t sep_len = 0; - - while( cur != NULL ) - { - if( cur->buf.len + sep_len >= n ) - { - *p = '\0'; - return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); - } - - n -= cur->buf.len + sep_len; - for( i = 0; i < sep_len; i++ ) - *p++ = sep[i]; - for( i = 0; i < cur->buf.len; i++ ) - *p++ = cur->buf.p[i]; - - sep = ", "; - sep_len = 2; - - cur = cur->next; - } - - *p = '\0'; - - *size = n; - *buf = p; - - return( 0 ); -} - -#define PRINT_ITEM(i) \ - { \ - ret = mbedtls_snprintf( p, n, "%s" i, sep ); \ - MBEDTLS_X509_SAFE_SNPRINTF; \ - sep = ", "; \ - } - -#define CERT_TYPE(type,name) \ - if( ns_cert_type & type ) \ - PRINT_ITEM( name ); - -static int x509_info_cert_type( char **buf, size_t *size, - unsigned char ns_cert_type ) -{ - int ret; - size_t n = *size; - char *p = *buf; - const char *sep = ""; - - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT, "SSL Client" ); - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER, "SSL Server" ); - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL, "Email" ); - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING, "Object Signing" ); - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_RESERVED, "Reserved" ); - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CA, "SSL CA" ); - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA, "Email CA" ); - CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA, "Object Signing CA" ); - - *size = n; - *buf = p; - - return( 0 ); -} - -#define KEY_USAGE(code,name) \ - if( key_usage & code ) \ - PRINT_ITEM( name ); - -static int x509_info_key_usage( char **buf, size_t *size, - unsigned int key_usage ) -{ - int ret; - size_t n = *size; - char *p = *buf; - const char *sep = ""; - - KEY_USAGE( MBEDTLS_X509_KU_DIGITAL_SIGNATURE, "Digital Signature" ); - KEY_USAGE( MBEDTLS_X509_KU_NON_REPUDIATION, "Non Repudiation" ); - KEY_USAGE( MBEDTLS_X509_KU_KEY_ENCIPHERMENT, "Key Encipherment" ); - KEY_USAGE( MBEDTLS_X509_KU_DATA_ENCIPHERMENT, "Data Encipherment" ); - KEY_USAGE( MBEDTLS_X509_KU_KEY_AGREEMENT, "Key Agreement" ); - KEY_USAGE( MBEDTLS_X509_KU_KEY_CERT_SIGN, "Key Cert Sign" ); - KEY_USAGE( MBEDTLS_X509_KU_CRL_SIGN, "CRL Sign" ); - KEY_USAGE( MBEDTLS_X509_KU_ENCIPHER_ONLY, "Encipher Only" ); - KEY_USAGE( MBEDTLS_X509_KU_DECIPHER_ONLY, "Decipher Only" ); - - *size = n; - *buf = p; - - return( 0 ); -} - -static int x509_info_ext_key_usage( char **buf, size_t *size, - const mbedtls_x509_sequence *extended_key_usage ) -{ - int ret; - const char *desc; - size_t n = *size; - char *p = *buf; - const mbedtls_x509_sequence *cur = extended_key_usage; - const char *sep = ""; - - while( cur != NULL ) - { - if( mbedtls_oid_get_extended_key_usage( &cur->buf, &desc ) != 0 ) - desc = "???"; - - ret = mbedtls_snprintf( p, n, "%s%s", sep, desc ); - MBEDTLS_X509_SAFE_SNPRINTF; - - sep = ", "; - - cur = cur->next; - } - - *size = n; - *buf = p; - - return( 0 ); -} - -/* - * Return an informational string about the certificate. - */ -#define BEFORE_COLON 18 -#define BC "18" -int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix, - const mbedtls_x509_crt *crt ) -{ - int ret; - size_t n; - char *p; - char key_size_str[BEFORE_COLON]; - - p = buf; - n = size; - - if( NULL == crt ) - { - ret = mbedtls_snprintf( p, n, "\nCertificate is uninitialised!\n" ); - MBEDTLS_X509_SAFE_SNPRINTF; - - return( (int) ( size - n ) ); - } - - ret = mbedtls_snprintf( p, n, "%scert. version : %d\n", - prefix, crt->version ); - MBEDTLS_X509_SAFE_SNPRINTF; - ret = mbedtls_snprintf( p, n, "%sserial number : ", - prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_x509_serial_gets( p, n, &crt->serial ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%sissuer name : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - ret = mbedtls_x509_dn_gets( p, n, &crt->issuer ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%ssubject name : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - ret = mbedtls_x509_dn_gets( p, n, &crt->subject ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%sissued on : " \ - "%04d-%02d-%02d %02d:%02d:%02d", prefix, - crt->valid_from.year, crt->valid_from.mon, - crt->valid_from.day, crt->valid_from.hour, - crt->valid_from.min, crt->valid_from.sec ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%sexpires on : " \ - "%04d-%02d-%02d %02d:%02d:%02d", prefix, - crt->valid_to.year, crt->valid_to.mon, - crt->valid_to.day, crt->valid_to.hour, - crt->valid_to.min, crt->valid_to.sec ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_x509_sig_alg_gets( p, n, &crt->sig_oid, crt->sig_pk, - crt->sig_md, crt->sig_opts ); - MBEDTLS_X509_SAFE_SNPRINTF; - - /* Key size */ - if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON, - mbedtls_pk_get_name( &crt->pk ) ) ) != 0 ) - { - return( ret ); - } - - ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits", prefix, key_size_str, - (int) mbedtls_pk_get_bitlen( &crt->pk ) ); - MBEDTLS_X509_SAFE_SNPRINTF; - - /* - * Optional extensions - */ - - if( crt->ext_types & MBEDTLS_X509_EXT_BASIC_CONSTRAINTS ) - { - ret = mbedtls_snprintf( p, n, "\n%sbasic constraints : CA=%s", prefix, - crt->ca_istrue ? "true" : "false" ); - MBEDTLS_X509_SAFE_SNPRINTF; - - if( crt->max_pathlen > 0 ) - { - ret = mbedtls_snprintf( p, n, ", max_pathlen=%d", crt->max_pathlen - 1 ); - MBEDTLS_X509_SAFE_SNPRINTF; - } - } - - if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME ) - { - ret = mbedtls_snprintf( p, n, "\n%ssubject alt name : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - if( ( ret = x509_info_subject_alt_name( &p, &n, - &crt->subject_alt_names ) ) != 0 ) - return( ret ); - } - - if( crt->ext_types & MBEDTLS_X509_EXT_NS_CERT_TYPE ) - { - ret = mbedtls_snprintf( p, n, "\n%scert. type : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - if( ( ret = x509_info_cert_type( &p, &n, crt->ns_cert_type ) ) != 0 ) - return( ret ); - } - - if( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE ) - { - ret = mbedtls_snprintf( p, n, "\n%skey usage : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - if( ( ret = x509_info_key_usage( &p, &n, crt->key_usage ) ) != 0 ) - return( ret ); - } - - if( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE ) - { - ret = mbedtls_snprintf( p, n, "\n%sext key usage : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - if( ( ret = x509_info_ext_key_usage( &p, &n, - &crt->ext_key_usage ) ) != 0 ) - return( ret ); - } - - ret = mbedtls_snprintf( p, n, "\n" ); - MBEDTLS_X509_SAFE_SNPRINTF; - - return( (int) ( size - n ) ); -} - -struct x509_crt_verify_string { - int code; - const char *string; -}; - -static const struct x509_crt_verify_string x509_crt_verify_strings[] = { - { MBEDTLS_X509_BADCERT_EXPIRED, "The certificate validity has expired" }, - { MBEDTLS_X509_BADCERT_REVOKED, "The certificate has been revoked (is on a CRL)" }, - { MBEDTLS_X509_BADCERT_CN_MISMATCH, "The certificate Common Name (CN) does not match with the expected CN" }, - { MBEDTLS_X509_BADCERT_NOT_TRUSTED, "The certificate is not correctly signed by the trusted CA" }, - { MBEDTLS_X509_BADCRL_NOT_TRUSTED, "The CRL is not correctly signed by the trusted CA" }, - { MBEDTLS_X509_BADCRL_EXPIRED, "The CRL is expired" }, - { MBEDTLS_X509_BADCERT_MISSING, "Certificate was missing" }, - { MBEDTLS_X509_BADCERT_SKIP_VERIFY, "Certificate verification was skipped" }, - { MBEDTLS_X509_BADCERT_OTHER, "Other reason (can be used by verify callback)" }, - { MBEDTLS_X509_BADCERT_FUTURE, "The certificate validity starts in the future" }, - { MBEDTLS_X509_BADCRL_FUTURE, "The CRL is from the future" }, - { MBEDTLS_X509_BADCERT_KEY_USAGE, "Usage does not match the keyUsage extension" }, - { MBEDTLS_X509_BADCERT_EXT_KEY_USAGE, "Usage does not match the extendedKeyUsage extension" }, - { MBEDTLS_X509_BADCERT_NS_CERT_TYPE, "Usage does not match the nsCertType extension" }, - { MBEDTLS_X509_BADCERT_BAD_MD, "The certificate is signed with an unacceptable hash." }, - { MBEDTLS_X509_BADCERT_BAD_PK, "The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA)." }, - { MBEDTLS_X509_BADCERT_BAD_KEY, "The certificate is signed with an unacceptable key (eg bad curve, RSA too short)." }, - { MBEDTLS_X509_BADCRL_BAD_MD, "The CRL is signed with an unacceptable hash." }, - { MBEDTLS_X509_BADCRL_BAD_PK, "The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA)." }, - { MBEDTLS_X509_BADCRL_BAD_KEY, "The CRL is signed with an unacceptable key (eg bad curve, RSA too short)." }, - { 0, NULL } -}; - -int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix, - uint32_t flags ) -{ - int ret; - const struct x509_crt_verify_string *cur; - char *p = buf; - size_t n = size; - - for( cur = x509_crt_verify_strings; cur->string != NULL ; cur++ ) - { - if( ( flags & cur->code ) == 0 ) - continue; - - ret = mbedtls_snprintf( p, n, "%s%s\n", prefix, cur->string ); - MBEDTLS_X509_SAFE_SNPRINTF; - flags ^= cur->code; - } - - if( flags != 0 ) - { - ret = mbedtls_snprintf( p, n, "%sUnknown reason " - "(this should not happen)\n", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - } - - return( (int) ( size - n ) ); -} - -#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) -int mbedtls_x509_crt_check_key_usage( const mbedtls_x509_crt *crt, - unsigned int usage ) -{ - unsigned int usage_must, usage_may; - unsigned int may_mask = MBEDTLS_X509_KU_ENCIPHER_ONLY - | MBEDTLS_X509_KU_DECIPHER_ONLY; - - if( ( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE ) == 0 ) - return( 0 ); - - usage_must = usage & ~may_mask; - - if( ( ( crt->key_usage & ~may_mask ) & usage_must ) != usage_must ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - usage_may = usage & may_mask; - - if( ( ( crt->key_usage & may_mask ) | usage_may ) != usage_may ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - return( 0 ); -} -#endif - -#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) -int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt, - const char *usage_oid, - size_t usage_len ) -{ - const mbedtls_x509_sequence *cur; - - /* Extension is not mandatory, absent means no restriction */ - if( ( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE ) == 0 ) - return( 0 ); - - /* - * Look for the requested usage (or wildcard ANY) in our list - */ - for( cur = &crt->ext_key_usage; cur != NULL; cur = cur->next ) - { - const mbedtls_x509_buf *cur_oid = &cur->buf; - - if( cur_oid->len == usage_len && - memcmp( cur_oid->p, usage_oid, usage_len ) == 0 ) - { - return( 0 ); - } - - if( MBEDTLS_OID_CMP( MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE, cur_oid ) == 0 ) - return( 0 ); - } - - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); -} -#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */ - -#if defined(MBEDTLS_X509_CRL_PARSE_C) -/* - * Return 1 if the certificate is revoked, or 0 otherwise. - */ -int mbedtls_x509_crt_is_revoked( const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl ) -{ - const mbedtls_x509_crl_entry *cur = &crl->entry; - - while( cur != NULL && cur->serial.len != 0 ) - { - if( crt->serial.len == cur->serial.len && - memcmp( crt->serial.p, cur->serial.p, crt->serial.len ) == 0 ) - { - if( mbedtls_x509_time_is_past( &cur->revocation_date ) ) - return( 1 ); - } - - cur = cur->next; - } - - return( 0 ); -} - -/* - * Check that the given certificate is not revoked according to the CRL. - * Skip validation if no CRL for the given CA is present. - */ -static int x509_crt_verifycrl( mbedtls_x509_crt *crt, mbedtls_x509_crt *ca, - mbedtls_x509_crl *crl_list, - const mbedtls_x509_crt_profile *profile ) -{ - int flags = 0; - unsigned char hash[MBEDTLS_MD_MAX_SIZE]; - const mbedtls_md_info_t *md_info; - - if( ca == NULL ) - return( flags ); - - while( crl_list != NULL ) - { - if( crl_list->version == 0 || - x509_name_cmp( &crl_list->issuer, &ca->subject ) != 0 ) - { - crl_list = crl_list->next; - continue; - } - - /* - * Check if the CA is configured to sign CRLs - */ -#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) - if( mbedtls_x509_crt_check_key_usage( ca, - MBEDTLS_X509_KU_CRL_SIGN ) != 0 ) - { - flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED; - break; - } -#endif - - /* - * Check if CRL is correctly signed by the trusted CA - */ - if( x509_profile_check_md_alg( profile, crl_list->sig_md ) != 0 ) - flags |= MBEDTLS_X509_BADCRL_BAD_MD; - - if( x509_profile_check_pk_alg( profile, crl_list->sig_pk ) != 0 ) - flags |= MBEDTLS_X509_BADCRL_BAD_PK; - - md_info = mbedtls_md_info_from_type( crl_list->sig_md ); - if( mbedtls_md( md_info, crl_list->tbs.p, crl_list->tbs.len, hash ) != 0 ) - { - /* Note: this can't happen except after an internal error */ - flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED; - break; - } - - if( x509_profile_check_key( profile, &ca->pk ) != 0 ) - flags |= MBEDTLS_X509_BADCERT_BAD_KEY; - - if( mbedtls_pk_verify_ext( crl_list->sig_pk, crl_list->sig_opts, &ca->pk, - crl_list->sig_md, hash, mbedtls_md_get_size( md_info ), - crl_list->sig.p, crl_list->sig.len ) != 0 ) - { - flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED; - break; - } - - /* - * Check for validity of CRL (Do not drop out) - */ - if( mbedtls_x509_time_is_past( &crl_list->next_update ) ) - flags |= MBEDTLS_X509_BADCRL_EXPIRED; - - if( mbedtls_x509_time_is_future( &crl_list->this_update ) ) - flags |= MBEDTLS_X509_BADCRL_FUTURE; - - /* - * Check if certificate is revoked - */ - if( mbedtls_x509_crt_is_revoked( crt, crl_list ) ) - { - flags |= MBEDTLS_X509_BADCERT_REVOKED; - break; - } - - crl_list = crl_list->next; - } - - return( flags ); -} -#endif /* MBEDTLS_X509_CRL_PARSE_C */ - -/* - * Check the signature of a certificate by its parent - */ -static int x509_crt_check_signature( const mbedtls_x509_crt *child, - mbedtls_x509_crt *parent, - mbedtls_x509_crt_restart_ctx *rs_ctx ) -{ - unsigned char hash[MBEDTLS_MD_MAX_SIZE]; - size_t hash_len; -#if !defined(MBEDTLS_USE_PSA_CRYPTO) - const mbedtls_md_info_t *md_info; - md_info = mbedtls_md_info_from_type( child->sig_md ); - hash_len = mbedtls_md_get_size( md_info ); - - /* Note: hash errors can happen only after an internal error */ - if( mbedtls_md( md_info, child->tbs.p, child->tbs.len, hash ) != 0 ) - return( -1 ); -#else - psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT; - psa_algorithm_t hash_alg = mbedtls_psa_translate_md( child->sig_md ); - - if( psa_hash_setup( &hash_operation, hash_alg ) != PSA_SUCCESS ) - return( -1 ); - - if( psa_hash_update( &hash_operation, child->tbs.p, child->tbs.len ) - != PSA_SUCCESS ) - { - return( -1 ); - } - - if( psa_hash_finish( &hash_operation, hash, sizeof( hash ), &hash_len ) - != PSA_SUCCESS ) - { - return( -1 ); - } -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - /* Skip expensive computation on obvious mismatch */ - if( ! mbedtls_pk_can_do( &parent->pk, child->sig_pk ) ) - return( -1 ); - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - if( rs_ctx != NULL && child->sig_pk == MBEDTLS_PK_ECDSA ) - { - return( mbedtls_pk_verify_restartable( &parent->pk, - child->sig_md, hash, hash_len, - child->sig.p, child->sig.len, &rs_ctx->pk ) ); - } -#else - (void) rs_ctx; -#endif - - return( mbedtls_pk_verify_ext( child->sig_pk, child->sig_opts, &parent->pk, - child->sig_md, hash, hash_len, - child->sig.p, child->sig.len ) ); -} - -/* - * Check if 'parent' is a suitable parent (signing CA) for 'child'. - * Return 0 if yes, -1 if not. - * - * top means parent is a locally-trusted certificate - */ -static int x509_crt_check_parent( const mbedtls_x509_crt *child, - const mbedtls_x509_crt *parent, - int top ) -{ - int need_ca_bit; - - /* Parent must be the issuer */ - if( x509_name_cmp( &child->issuer, &parent->subject ) != 0 ) - return( -1 ); - - /* Parent must have the basicConstraints CA bit set as a general rule */ - need_ca_bit = 1; - - /* Exception: v1/v2 certificates that are locally trusted. */ - if( top && parent->version < 3 ) - need_ca_bit = 0; - - if( need_ca_bit && ! parent->ca_istrue ) - return( -1 ); - -#if defined(MBEDTLS_X509_CHECK_KEY_USAGE) - if( need_ca_bit && - mbedtls_x509_crt_check_key_usage( parent, MBEDTLS_X509_KU_KEY_CERT_SIGN ) != 0 ) - { - return( -1 ); - } -#endif - - return( 0 ); -} - -/* - * Find a suitable parent for child in candidates, or return NULL. - * - * Here suitable is defined as: - * 1. subject name matches child's issuer - * 2. if necessary, the CA bit is set and key usage allows signing certs - * 3. for trusted roots, the signature is correct - * (for intermediates, the signature is checked and the result reported) - * 4. pathlen constraints are satisfied - * - * If there's a suitable candidate which is also time-valid, return the first - * such. Otherwise, return the first suitable candidate (or NULL if there is - * none). - * - * The rationale for this rule is that someone could have a list of trusted - * roots with two versions on the same root with different validity periods. - * (At least one user reported having such a list and wanted it to just work.) - * The reason we don't just require time-validity is that generally there is - * only one version, and if it's expired we want the flags to state that - * rather than NOT_TRUSTED, as would be the case if we required it here. - * - * The rationale for rule 3 (signature for trusted roots) is that users might - * have two versions of the same CA with different keys in their list, and the - * way we select the correct one is by checking the signature (as we don't - * rely on key identifier extensions). (This is one way users might choose to - * handle key rollover, another relies on self-issued certs, see [SIRO].) - * - * Arguments: - * - [in] child: certificate for which we're looking for a parent - * - [in] candidates: chained list of potential parents - * - [out] r_parent: parent found (or NULL) - * - [out] r_signature_is_good: 1 if child signature by parent is valid, or 0 - * - [in] top: 1 if candidates consists of trusted roots, ie we're at the top - * of the chain, 0 otherwise - * - [in] path_cnt: number of intermediates seen so far - * - [in] self_cnt: number of self-signed intermediates seen so far - * (will never be greater than path_cnt) - * - [in-out] rs_ctx: context for restarting operations - * - * Return value: - * - 0 on success - * - MBEDTLS_ERR_ECP_IN_PROGRESS otherwise - */ -static int x509_crt_find_parent_in( - mbedtls_x509_crt *child, - mbedtls_x509_crt *candidates, - mbedtls_x509_crt **r_parent, - int *r_signature_is_good, - int top, - unsigned path_cnt, - unsigned self_cnt, - mbedtls_x509_crt_restart_ctx *rs_ctx ) -{ - int ret; - mbedtls_x509_crt *parent, *fallback_parent; - int signature_is_good, fallback_signature_is_good; - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - /* did we have something in progress? */ - if( rs_ctx != NULL && rs_ctx->parent != NULL ) - { - /* restore saved state */ - parent = rs_ctx->parent; - fallback_parent = rs_ctx->fallback_parent; - fallback_signature_is_good = rs_ctx->fallback_signature_is_good; - - /* clear saved state */ - rs_ctx->parent = NULL; - rs_ctx->fallback_parent = NULL; - rs_ctx->fallback_signature_is_good = 0; - - /* resume where we left */ - goto check_signature; - } -#endif - - fallback_parent = NULL; - fallback_signature_is_good = 0; - - for( parent = candidates; parent != NULL; parent = parent->next ) - { - /* basic parenting skills (name, CA bit, key usage) */ - if( x509_crt_check_parent( child, parent, top ) != 0 ) - continue; - - /* +1 because stored max_pathlen is 1 higher that the actual value */ - if( parent->max_pathlen > 0 && - (size_t) parent->max_pathlen < 1 + path_cnt - self_cnt ) - { - continue; - } - - /* Signature */ -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) -check_signature: -#endif - ret = x509_crt_check_signature( child, parent, rs_ctx ); - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - { - /* save state */ - rs_ctx->parent = parent; - rs_ctx->fallback_parent = fallback_parent; - rs_ctx->fallback_signature_is_good = fallback_signature_is_good; - - return( ret ); - } -#else - (void) ret; -#endif - - signature_is_good = ret == 0; - if( top && ! signature_is_good ) - continue; - - /* optional time check */ - if( mbedtls_x509_time_is_past( &parent->valid_to ) || - mbedtls_x509_time_is_future( &parent->valid_from ) ) - { - if( fallback_parent == NULL ) - { - fallback_parent = parent; - fallback_signature_is_good = signature_is_good; - } - - continue; - } - - break; - } - - if( parent != NULL ) - { - *r_parent = parent; - *r_signature_is_good = signature_is_good; - } - else - { - *r_parent = fallback_parent; - *r_signature_is_good = fallback_signature_is_good; - } - - return( 0 ); -} - -/* - * Find a parent in trusted CAs or the provided chain, or return NULL. - * - * Searches in trusted CAs first, and return the first suitable parent found - * (see find_parent_in() for definition of suitable). - * - * Arguments: - * - [in] child: certificate for which we're looking for a parent, followed - * by a chain of possible intermediates - * - [in] trust_ca: list of locally trusted certificates - * - [out] parent: parent found (or NULL) - * - [out] parent_is_trusted: 1 if returned `parent` is trusted, or 0 - * - [out] signature_is_good: 1 if child signature by parent is valid, or 0 - * - [in] path_cnt: number of links in the chain so far (EE -> ... -> child) - * - [in] self_cnt: number of self-signed certs in the chain so far - * (will always be no greater than path_cnt) - * - [in-out] rs_ctx: context for restarting operations - * - * Return value: - * - 0 on success - * - MBEDTLS_ERR_ECP_IN_PROGRESS otherwise - */ -static int x509_crt_find_parent( - mbedtls_x509_crt *child, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crt **parent, - int *parent_is_trusted, - int *signature_is_good, - unsigned path_cnt, - unsigned self_cnt, - mbedtls_x509_crt_restart_ctx *rs_ctx ) -{ - int ret; - mbedtls_x509_crt *search_list; - - *parent_is_trusted = 1; - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - /* restore then clear saved state if we have some stored */ - if( rs_ctx != NULL && rs_ctx->parent_is_trusted != -1 ) - { - *parent_is_trusted = rs_ctx->parent_is_trusted; - rs_ctx->parent_is_trusted = -1; - } -#endif - - while( 1 ) { - search_list = *parent_is_trusted ? trust_ca : child->next; - - ret = x509_crt_find_parent_in( child, search_list, - parent, signature_is_good, - *parent_is_trusted, - path_cnt, self_cnt, rs_ctx ); - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - { - /* save state */ - rs_ctx->parent_is_trusted = *parent_is_trusted; - return( ret ); - } -#else - (void) ret; -#endif - - /* stop here if found or already in second iteration */ - if( *parent != NULL || *parent_is_trusted == 0 ) - break; - - /* prepare second iteration */ - *parent_is_trusted = 0; - } - - /* extra precaution against mistakes in the caller */ - if( *parent == NULL ) - { - *parent_is_trusted = 0; - *signature_is_good = 0; - } - - return( 0 ); -} - -/* - * Check if an end-entity certificate is locally trusted - * - * Currently we require such certificates to be self-signed (actually only - * check for self-issued as self-signatures are not checked) - */ -static int x509_crt_check_ee_locally_trusted( - mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca ) -{ - mbedtls_x509_crt *cur; - - /* must be self-issued */ - if( x509_name_cmp( &crt->issuer, &crt->subject ) != 0 ) - return( -1 ); - - /* look for an exact match with trusted cert */ - for( cur = trust_ca; cur != NULL; cur = cur->next ) - { - if( crt->raw.len == cur->raw.len && - memcmp( crt->raw.p, cur->raw.p, crt->raw.len ) == 0 ) - { - return( 0 ); - } - } - - /* too bad */ - return( -1 ); -} - -/* - * Build and verify a certificate chain - * - * Given a peer-provided list of certificates EE, C1, ..., Cn and - * a list of trusted certs R1, ... Rp, try to build and verify a chain - * EE, Ci1, ... Ciq [, Rj] - * such that every cert in the chain is a child of the next one, - * jumping to a trusted root as early as possible. - * - * Verify that chain and return it with flags for all issues found. - * - * Special cases: - * - EE == Rj -> return a one-element list containing it - * - EE, Ci1, ..., Ciq cannot be continued with a trusted root - * -> return that chain with NOT_TRUSTED set on Ciq - * - * Tests for (aspects of) this function should include at least: - * - trusted EE - * - EE -> trusted root - * - EE -> intermediate CA -> trusted root - * - if relevant: EE untrusted - * - if relevant: EE -> intermediate, untrusted - * with the aspect under test checked at each relevant level (EE, int, root). - * For some aspects longer chains are required, but usually length 2 is - * enough (but length 1 is not in general). - * - * Arguments: - * - [in] crt: the cert list EE, C1, ..., Cn - * - [in] trust_ca: the trusted list R1, ..., Rp - * - [in] ca_crl, profile: as in verify_with_profile() - * - [out] ver_chain: the built and verified chain - * Only valid when return value is 0, may contain garbage otherwise! - * Restart note: need not be the same when calling again to resume. - * - [in-out] rs_ctx: context for restarting operations - * - * Return value: - * - non-zero if the chain could not be fully built and examined - * - 0 is the chain was successfully built and examined, - * even if it was found to be invalid - */ -static int x509_crt_verify_chain( - mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - mbedtls_x509_crt_ca_cb_t f_ca_cb, - void *p_ca_cb, - const mbedtls_x509_crt_profile *profile, - mbedtls_x509_crt_verify_chain *ver_chain, - mbedtls_x509_crt_restart_ctx *rs_ctx ) -{ - /* Don't initialize any of those variables here, so that the compiler can - * catch potential issues with jumping ahead when restarting */ - int ret; - uint32_t *flags; - mbedtls_x509_crt_verify_chain_item *cur; - mbedtls_x509_crt *child; - mbedtls_x509_crt *parent; - int parent_is_trusted; - int child_is_trusted; - int signature_is_good; - unsigned self_cnt; - mbedtls_x509_crt *cur_trust_ca = NULL; - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - /* resume if we had an operation in progress */ - if( rs_ctx != NULL && rs_ctx->in_progress == x509_crt_rs_find_parent ) - { - /* restore saved state */ - *ver_chain = rs_ctx->ver_chain; /* struct copy */ - self_cnt = rs_ctx->self_cnt; - - /* restore derived state */ - cur = &ver_chain->items[ver_chain->len - 1]; - child = cur->crt; - flags = &cur->flags; - - goto find_parent; - } -#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ - - child = crt; - self_cnt = 0; - parent_is_trusted = 0; - child_is_trusted = 0; - - while( 1 ) { - /* Add certificate to the verification chain */ - cur = &ver_chain->items[ver_chain->len]; - cur->crt = child; - cur->flags = 0; - ver_chain->len++; - flags = &cur->flags; - - /* Check time-validity (all certificates) */ - if( mbedtls_x509_time_is_past( &child->valid_to ) ) - *flags |= MBEDTLS_X509_BADCERT_EXPIRED; - - if( mbedtls_x509_time_is_future( &child->valid_from ) ) - *flags |= MBEDTLS_X509_BADCERT_FUTURE; - - /* Stop here for trusted roots (but not for trusted EE certs) */ - if( child_is_trusted ) - return( 0 ); - - /* Check signature algorithm: MD & PK algs */ - if( x509_profile_check_md_alg( profile, child->sig_md ) != 0 ) - *flags |= MBEDTLS_X509_BADCERT_BAD_MD; - - if( x509_profile_check_pk_alg( profile, child->sig_pk ) != 0 ) - *flags |= MBEDTLS_X509_BADCERT_BAD_PK; - - /* Special case: EE certs that are locally trusted */ - if( ver_chain->len == 1 && - x509_crt_check_ee_locally_trusted( child, trust_ca ) == 0 ) - { - return( 0 ); - } - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) -find_parent: -#endif - - /* Obtain list of potential trusted signers from CA callback, - * or use statically provided list. */ -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - if( f_ca_cb != NULL ) - { - mbedtls_x509_crt_free( ver_chain->trust_ca_cb_result ); - mbedtls_free( ver_chain->trust_ca_cb_result ); - ver_chain->trust_ca_cb_result = NULL; - - ret = f_ca_cb( p_ca_cb, child, &ver_chain->trust_ca_cb_result ); - if( ret != 0 ) - return( MBEDTLS_ERR_X509_FATAL_ERROR ); - - cur_trust_ca = ver_chain->trust_ca_cb_result; - } - else -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ - { - ((void) f_ca_cb); - ((void) p_ca_cb); - cur_trust_ca = trust_ca; - } - - /* Look for a parent in trusted CAs or up the chain */ - ret = x509_crt_find_parent( child, cur_trust_ca, &parent, - &parent_is_trusted, &signature_is_good, - ver_chain->len - 1, self_cnt, rs_ctx ); - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - { - /* save state */ - rs_ctx->in_progress = x509_crt_rs_find_parent; - rs_ctx->self_cnt = self_cnt; - rs_ctx->ver_chain = *ver_chain; /* struct copy */ - - return( ret ); - } -#else - (void) ret; -#endif - - /* No parent? We're done here */ - if( parent == NULL ) - { - *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED; - return( 0 ); - } - - /* Count intermediate self-issued (not necessarily self-signed) certs. - * These can occur with some strategies for key rollover, see [SIRO], - * and should be excluded from max_pathlen checks. */ - if( ver_chain->len != 1 && - x509_name_cmp( &child->issuer, &child->subject ) == 0 ) - { - self_cnt++; - } - - /* path_cnt is 0 for the first intermediate CA, - * and if parent is trusted it's not an intermediate CA */ - if( ! parent_is_trusted && - ver_chain->len > MBEDTLS_X509_MAX_INTERMEDIATE_CA ) - { - /* return immediately to avoid overflow the chain array */ - return( MBEDTLS_ERR_X509_FATAL_ERROR ); - } - - /* signature was checked while searching parent */ - if( ! signature_is_good ) - *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED; - - /* check size of signing key */ - if( x509_profile_check_key( profile, &parent->pk ) != 0 ) - *flags |= MBEDTLS_X509_BADCERT_BAD_KEY; - -#if defined(MBEDTLS_X509_CRL_PARSE_C) - /* Check trusted CA's CRL for the given crt */ - *flags |= x509_crt_verifycrl( child, parent, ca_crl, profile ); -#else - (void) ca_crl; -#endif - - /* prepare for next iteration */ - child = parent; - parent = NULL; - child_is_trusted = parent_is_trusted; - signature_is_good = 0; - } -} - -/* - * Check for CN match - */ -static int x509_crt_check_cn( const mbedtls_x509_buf *name, - const char *cn, size_t cn_len ) -{ - /* try exact match */ - if( name->len == cn_len && - x509_memcasecmp( cn, name->p, cn_len ) == 0 ) - { - return( 0 ); - } - - /* try wildcard match */ - if( x509_check_wildcard( cn, name ) == 0 ) - { - return( 0 ); - } - - return( -1 ); -} - -/* - * Verify the requested CN - only call this if cn is not NULL! - */ -static void x509_crt_verify_name( const mbedtls_x509_crt *crt, - const char *cn, - uint32_t *flags ) -{ - const mbedtls_x509_name *name; - const mbedtls_x509_sequence *cur; - size_t cn_len = strlen( cn ); - - if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME ) - { - for( cur = &crt->subject_alt_names; cur != NULL; cur = cur->next ) - { - if( x509_crt_check_cn( &cur->buf, cn, cn_len ) == 0 ) - break; - } - - if( cur == NULL ) - *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH; - } - else - { - for( name = &crt->subject; name != NULL; name = name->next ) - { - if( MBEDTLS_OID_CMP( MBEDTLS_OID_AT_CN, &name->oid ) == 0 && - x509_crt_check_cn( &name->val, cn, cn_len ) == 0 ) - { - break; - } - } - - if( name == NULL ) - *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH; - } -} - -/* - * Merge the flags for all certs in the chain, after calling callback - */ -static int x509_crt_merge_flags_with_cb( - uint32_t *flags, - const mbedtls_x509_crt_verify_chain *ver_chain, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) -{ - int ret; - unsigned i; - uint32_t cur_flags; - const mbedtls_x509_crt_verify_chain_item *cur; - - for( i = ver_chain->len; i != 0; --i ) - { - cur = &ver_chain->items[i-1]; - cur_flags = cur->flags; - - if( NULL != f_vrfy ) - if( ( ret = f_vrfy( p_vrfy, cur->crt, (int) i-1, &cur_flags ) ) != 0 ) - return( ret ); - - *flags |= cur_flags; - } - - return( 0 ); -} - -/* - * Verify the certificate validity, with profile, restartable version - * - * This function: - * - checks the requested CN (if any) - * - checks the type and size of the EE cert's key, - * as that isn't done as part of chain building/verification currently - * - builds and verifies the chain - * - then calls the callback and merges the flags - * - * The parameters pairs `trust_ca`, `ca_crl` and `f_ca_cb`, `p_ca_cb` - * are mutually exclusive: If `f_ca_cb != NULL`, it will be used by the - * verification routine to search for trusted signers, and CRLs will - * be disabled. Otherwise, `trust_ca` will be used as the static list - * of trusted signers, and `ca_crl` will be use as the static list - * of CRLs. - */ -static int x509_crt_verify_restartable_ca_cb( mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - mbedtls_x509_crt_ca_cb_t f_ca_cb, - void *p_ca_cb, - const mbedtls_x509_crt_profile *profile, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy, - mbedtls_x509_crt_restart_ctx *rs_ctx ) -{ - int ret; - mbedtls_pk_type_t pk_type; - mbedtls_x509_crt_verify_chain ver_chain; - uint32_t ee_flags; - - *flags = 0; - ee_flags = 0; - x509_crt_verify_chain_reset( &ver_chain ); - - if( profile == NULL ) - { - ret = MBEDTLS_ERR_X509_BAD_INPUT_DATA; - goto exit; - } - - /* check name if requested */ - if( cn != NULL ) - x509_crt_verify_name( crt, cn, &ee_flags ); - - /* Check the type and size of the key */ - pk_type = mbedtls_pk_get_type( &crt->pk ); - - if( x509_profile_check_pk_alg( profile, pk_type ) != 0 ) - ee_flags |= MBEDTLS_X509_BADCERT_BAD_PK; - - if( x509_profile_check_key( profile, &crt->pk ) != 0 ) - ee_flags |= MBEDTLS_X509_BADCERT_BAD_KEY; - - /* Check the chain */ - ret = x509_crt_verify_chain( crt, trust_ca, ca_crl, - f_ca_cb, p_ca_cb, profile, - &ver_chain, rs_ctx ); - - if( ret != 0 ) - goto exit; - - /* Merge end-entity flags */ - ver_chain.items[0].flags |= ee_flags; - - /* Build final flags, calling callback on the way if any */ - ret = x509_crt_merge_flags_with_cb( flags, &ver_chain, f_vrfy, p_vrfy ); - -exit: - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - mbedtls_x509_crt_free( ver_chain.trust_ca_cb_result ); - mbedtls_free( ver_chain.trust_ca_cb_result ); - ver_chain.trust_ca_cb_result = NULL; -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) - if( rs_ctx != NULL && ret != MBEDTLS_ERR_ECP_IN_PROGRESS ) - mbedtls_x509_crt_restart_free( rs_ctx ); -#endif - - /* prevent misuse of the vrfy callback - VERIFY_FAILED would be ignored by - * the SSL module for authmode optional, but non-zero return from the - * callback means a fatal error so it shouldn't be ignored */ - if( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ) - ret = MBEDTLS_ERR_X509_FATAL_ERROR; - - if( ret != 0 ) - { - *flags = (uint32_t) -1; - return( ret ); - } - - if( *flags != 0 ) - return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ); - - return( 0 ); -} - - -/* - * Verify the certificate validity (default profile, not restartable) - */ -int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) -{ - return( x509_crt_verify_restartable_ca_cb( crt, trust_ca, ca_crl, - NULL, NULL, - &mbedtls_x509_crt_profile_default, - cn, flags, - f_vrfy, p_vrfy, NULL ) ); -} - -/* - * Verify the certificate validity (user-chosen profile, not restartable) - */ -int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - const mbedtls_x509_crt_profile *profile, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) -{ - return( x509_crt_verify_restartable_ca_cb( crt, trust_ca, ca_crl, - NULL, NULL, - profile, cn, flags, - f_vrfy, p_vrfy, NULL ) ); -} - -#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) -/* - * Verify the certificate validity (user-chosen profile, CA callback, - * not restartable). - */ -int mbedtls_x509_crt_verify_with_ca_cb( mbedtls_x509_crt *crt, - mbedtls_x509_crt_ca_cb_t f_ca_cb, - void *p_ca_cb, - const mbedtls_x509_crt_profile *profile, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) -{ - return( x509_crt_verify_restartable_ca_cb( crt, NULL, NULL, - f_ca_cb, p_ca_cb, - profile, cn, flags, - f_vrfy, p_vrfy, NULL ) ); -} -#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ - -int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt, - mbedtls_x509_crt *trust_ca, - mbedtls_x509_crl *ca_crl, - const mbedtls_x509_crt_profile *profile, - const char *cn, uint32_t *flags, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy, - mbedtls_x509_crt_restart_ctx *rs_ctx ) -{ - return( x509_crt_verify_restartable_ca_cb( crt, trust_ca, ca_crl, - NULL, NULL, - profile, cn, flags, - f_vrfy, p_vrfy, rs_ctx ) ); -} - - -/* - * Initialize a certificate chain - */ -void mbedtls_x509_crt_init( mbedtls_x509_crt *crt ) -{ - memset( crt, 0, sizeof(mbedtls_x509_crt) ); -} - -/* - * Unallocate all certificate data - */ -void mbedtls_x509_crt_free( mbedtls_x509_crt *crt ) -{ - mbedtls_x509_crt *cert_cur = crt; - mbedtls_x509_crt *cert_prv; - mbedtls_x509_name *name_cur; - mbedtls_x509_name *name_prv; - mbedtls_x509_sequence *seq_cur; - mbedtls_x509_sequence *seq_prv; - - if( crt == NULL ) - return; - - do - { - mbedtls_pk_free( &cert_cur->pk ); - -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) - mbedtls_free( cert_cur->sig_opts ); -#endif - - name_cur = cert_cur->issuer.next; - while( name_cur != NULL ) - { - name_prv = name_cur; - name_cur = name_cur->next; - mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); - mbedtls_free( name_prv ); - } - - name_cur = cert_cur->subject.next; - while( name_cur != NULL ) - { - name_prv = name_cur; - name_cur = name_cur->next; - mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); - mbedtls_free( name_prv ); - } - - seq_cur = cert_cur->ext_key_usage.next; - while( seq_cur != NULL ) - { - seq_prv = seq_cur; - seq_cur = seq_cur->next; - mbedtls_platform_zeroize( seq_prv, - sizeof( mbedtls_x509_sequence ) ); - mbedtls_free( seq_prv ); - } - - seq_cur = cert_cur->subject_alt_names.next; - while( seq_cur != NULL ) - { - seq_prv = seq_cur; - seq_cur = seq_cur->next; - mbedtls_platform_zeroize( seq_prv, - sizeof( mbedtls_x509_sequence ) ); - mbedtls_free( seq_prv ); - } - - if( cert_cur->raw.p != NULL && cert_cur->own_buffer ) - { - mbedtls_platform_zeroize( cert_cur->raw.p, cert_cur->raw.len ); - mbedtls_free( cert_cur->raw.p ); - } - - cert_cur = cert_cur->next; - } - while( cert_cur != NULL ); - - cert_cur = crt; - do - { - cert_prv = cert_cur; - cert_cur = cert_cur->next; - - mbedtls_platform_zeroize( cert_prv, sizeof( mbedtls_x509_crt ) ); - if( cert_prv != crt ) - mbedtls_free( cert_prv ); - } - while( cert_cur != NULL ); -} - -#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE) -/* - * Initialize a restart context - */ -void mbedtls_x509_crt_restart_init( mbedtls_x509_crt_restart_ctx *ctx ) -{ - mbedtls_pk_restart_init( &ctx->pk ); - - ctx->parent = NULL; - ctx->fallback_parent = NULL; - ctx->fallback_signature_is_good = 0; - - ctx->parent_is_trusted = -1; - - ctx->in_progress = x509_crt_rs_none; - ctx->self_cnt = 0; - x509_crt_verify_chain_reset( &ctx->ver_chain ); -} - -/* - * Free the components of a restart context - */ -void mbedtls_x509_crt_restart_free( mbedtls_x509_crt_restart_ctx *ctx ) -{ - if( ctx == NULL ) - return; - - mbedtls_pk_restart_free( &ctx->pk ); - mbedtls_x509_crt_restart_init( ctx ); -} -#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */ - -#endif /* MBEDTLS_X509_CRT_PARSE_C */ diff --git a/library/x509_csr.c b/library/x509_csr.c deleted file mode 100644 index c8c08c87b..000000000 --- a/library/x509_csr.c +++ /dev/null @@ -1,419 +0,0 @@ -/* - * X.509 Certificate Signing Request (CSR) parsing - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * The ITU-T X.509 standard defines a certificate format for PKI. - * - * http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs) - * http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs) - * http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10) - * - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf - * http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_X509_CSR_PARSE_C) - -#include "mbedtls/x509_csr.h" -#include "mbedtls/oid.h" -#include "mbedtls/platform_util.h" - -#include - -#if defined(MBEDTLS_PEM_PARSE_C) -#include "mbedtls/pem.h" -#endif - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#include -#define mbedtls_free free -#define mbedtls_calloc calloc -#define mbedtls_snprintf snprintf -#endif - -#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32) -#include -#endif - -/* - * Version ::= INTEGER { v1(0) } - */ -static int x509_csr_get_version( unsigned char **p, - const unsigned char *end, - int *ver ) -{ - int ret; - - if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 ) - { - if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - { - *ver = 0; - return( 0 ); - } - - return( MBEDTLS_ERR_X509_INVALID_VERSION + ret ); - } - - return( 0 ); -} - -/* - * Parse a CSR in DER format - */ -int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr, - const unsigned char *buf, size_t buflen ) -{ - int ret; - size_t len; - unsigned char *p, *end; - mbedtls_x509_buf sig_params; - - memset( &sig_params, 0, sizeof( mbedtls_x509_buf ) ); - - /* - * Check for valid input - */ - if( csr == NULL || buf == NULL || buflen == 0 ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - mbedtls_x509_csr_init( csr ); - - /* - * first copy the raw DER data - */ - p = mbedtls_calloc( 1, len = buflen ); - - if( p == NULL ) - return( MBEDTLS_ERR_X509_ALLOC_FAILED ); - - memcpy( p, buf, buflen ); - - csr->raw.p = p; - csr->raw.len = len; - end = p + len; - - /* - * CertificationRequest ::= SEQUENCE { - * certificationRequestInfo CertificationRequestInfo, - * signatureAlgorithm AlgorithmIdentifier, - * signature BIT STRING - * } - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT ); - } - - if( len != (size_t) ( end - p ) ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - - /* - * CertificationRequestInfo ::= SEQUENCE { - */ - csr->cri.p = p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - end = p + len; - csr->cri.len = end - csr->cri.p; - - /* - * Version ::= INTEGER { v1(0) } - */ - if( ( ret = x509_csr_get_version( &p, end, &csr->version ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( ret ); - } - - if( csr->version != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_UNKNOWN_VERSION ); - } - - csr->version++; - - /* - * subject Name - */ - csr->subject_raw.p = p; - - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - if( ( ret = mbedtls_x509_get_name( &p, p + len, &csr->subject ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( ret ); - } - - csr->subject_raw.len = p - csr->subject_raw.p; - - /* - * subjectPKInfo SubjectPublicKeyInfo - */ - if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &csr->pk ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( ret ); - } - - /* - * attributes [0] Attributes - * - * The list of possible attributes is open-ended, though RFC 2985 - * (PKCS#9) defines a few in section 5.4. We currently don't support any, - * so we just ignore them. This is a safe thing to do as the worst thing - * that could happen is that we issue a certificate that does not match - * the requester's expectations - this cannot cause a violation of our - * signature policies. - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, - MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_CONTEXT_SPECIFIC ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret ); - } - - p += len; - - end = csr->raw.p + csr->raw.len; - - /* - * signatureAlgorithm AlgorithmIdentifier, - * signature BIT STRING - */ - if( ( ret = mbedtls_x509_get_alg( &p, end, &csr->sig_oid, &sig_params ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( ret ); - } - - if( ( ret = mbedtls_x509_get_sig_alg( &csr->sig_oid, &sig_params, - &csr->sig_md, &csr->sig_pk, - &csr->sig_opts ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG ); - } - - if( ( ret = mbedtls_x509_get_sig( &p, end, &csr->sig ) ) != 0 ) - { - mbedtls_x509_csr_free( csr ); - return( ret ); - } - - if( p != end ) - { - mbedtls_x509_csr_free( csr ); - return( MBEDTLS_ERR_X509_INVALID_FORMAT + - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ); - } - - return( 0 ); -} - -/* - * Parse a CSR, allowing for PEM or raw DER encoding - */ -int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen ) -{ -#if defined(MBEDTLS_PEM_PARSE_C) - int ret; - size_t use_len; - mbedtls_pem_context pem; -#endif - - /* - * Check for valid input - */ - if( csr == NULL || buf == NULL || buflen == 0 ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - -#if defined(MBEDTLS_PEM_PARSE_C) - /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ - if( buf[buflen - 1] == '\0' ) - { - mbedtls_pem_init( &pem ); - ret = mbedtls_pem_read_buffer( &pem, - "-----BEGIN CERTIFICATE REQUEST-----", - "-----END CERTIFICATE REQUEST-----", - buf, NULL, 0, &use_len ); - if( ret == MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) - { - ret = mbedtls_pem_read_buffer( &pem, - "-----BEGIN NEW CERTIFICATE REQUEST-----", - "-----END NEW CERTIFICATE REQUEST-----", - buf, NULL, 0, &use_len ); - } - - if( ret == 0 ) - { - /* - * Was PEM encoded, parse the result - */ - ret = mbedtls_x509_csr_parse_der( csr, pem.buf, pem.buflen ); - } - - mbedtls_pem_free( &pem ); - if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT ) - return( ret ); - } -#endif /* MBEDTLS_PEM_PARSE_C */ - return( mbedtls_x509_csr_parse_der( csr, buf, buflen ) ); -} - -#if defined(MBEDTLS_FS_IO) -/* - * Load a CSR into the structure - */ -int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path ) -{ - int ret; - size_t n; - unsigned char *buf; - - if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 ) - return( ret ); - - ret = mbedtls_x509_csr_parse( csr, buf, n ); - - mbedtls_platform_zeroize( buf, n ); - mbedtls_free( buf ); - - return( ret ); -} -#endif /* MBEDTLS_FS_IO */ - -#define BEFORE_COLON 14 -#define BC "14" -/* - * Return an informational string about the CSR. - */ -int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix, - const mbedtls_x509_csr *csr ) -{ - int ret; - size_t n; - char *p; - char key_size_str[BEFORE_COLON]; - - p = buf; - n = size; - - ret = mbedtls_snprintf( p, n, "%sCSR version : %d", - prefix, csr->version ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%ssubject name : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - ret = mbedtls_x509_dn_gets( p, n, &csr->subject ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix ); - MBEDTLS_X509_SAFE_SNPRINTF; - - ret = mbedtls_x509_sig_alg_gets( p, n, &csr->sig_oid, csr->sig_pk, csr->sig_md, - csr->sig_opts ); - MBEDTLS_X509_SAFE_SNPRINTF; - - if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON, - mbedtls_pk_get_name( &csr->pk ) ) ) != 0 ) - { - return( ret ); - } - - ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits\n", prefix, key_size_str, - (int) mbedtls_pk_get_bitlen( &csr->pk ) ); - MBEDTLS_X509_SAFE_SNPRINTF; - - return( (int) ( size - n ) ); -} - -/* - * Initialize a CSR - */ -void mbedtls_x509_csr_init( mbedtls_x509_csr *csr ) -{ - memset( csr, 0, sizeof(mbedtls_x509_csr) ); -} - -/* - * Unallocate all CSR data - */ -void mbedtls_x509_csr_free( mbedtls_x509_csr *csr ) -{ - mbedtls_x509_name *name_cur; - mbedtls_x509_name *name_prv; - - if( csr == NULL ) - return; - - mbedtls_pk_free( &csr->pk ); - -#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) - mbedtls_free( csr->sig_opts ); -#endif - - name_cur = csr->subject.next; - while( name_cur != NULL ) - { - name_prv = name_cur; - name_cur = name_cur->next; - mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) ); - mbedtls_free( name_prv ); - } - - if( csr->raw.p != NULL ) - { - mbedtls_platform_zeroize( csr->raw.p, csr->raw.len ); - mbedtls_free( csr->raw.p ); - } - - mbedtls_platform_zeroize( csr, sizeof( mbedtls_x509_csr ) ); -} - -#endif /* MBEDTLS_X509_CSR_PARSE_C */ diff --git a/library/x509write_crt.c b/library/x509write_crt.c deleted file mode 100644 index b6cb745a3..000000000 --- a/library/x509write_crt.c +++ /dev/null @@ -1,495 +0,0 @@ -/* - * X.509 certificate writing - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * References: - * - certificates: RFC 5280, updated by RFC 6818 - * - CSRs: PKCS#10 v1.7 aka RFC 2986 - * - attributes: PKCS#9 v2.0 aka RFC 2985 - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_X509_CRT_WRITE_C) - -#include "mbedtls/x509_crt.h" -#include "mbedtls/oid.h" -#include "mbedtls/asn1write.h" -#include "mbedtls/sha1.h" -#include "mbedtls/platform_util.h" - -#include - -#if defined(MBEDTLS_PEM_WRITE_C) -#include "mbedtls/pem.h" -#endif /* MBEDTLS_PEM_WRITE_C */ - -void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx ) -{ - memset( ctx, 0, sizeof( mbedtls_x509write_cert ) ); - - mbedtls_mpi_init( &ctx->serial ); - ctx->version = MBEDTLS_X509_CRT_VERSION_3; -} - -void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx ) -{ - mbedtls_mpi_free( &ctx->serial ); - - mbedtls_asn1_free_named_data_list( &ctx->subject ); - mbedtls_asn1_free_named_data_list( &ctx->issuer ); - mbedtls_asn1_free_named_data_list( &ctx->extensions ); - - mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_cert ) ); -} - -void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version ) -{ - ctx->version = version; -} - -void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg ) -{ - ctx->md_alg = md_alg; -} - -void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ) -{ - ctx->subject_key = key; -} - -void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key ) -{ - ctx->issuer_key = key; -} - -int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx, - const char *subject_name ) -{ - return mbedtls_x509_string_to_names( &ctx->subject, subject_name ); -} - -int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx, - const char *issuer_name ) -{ - return mbedtls_x509_string_to_names( &ctx->issuer, issuer_name ); -} - -int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial ) -{ - int ret; - - if( ( ret = mbedtls_mpi_copy( &ctx->serial, serial ) ) != 0 ) - return( ret ); - - return( 0 ); -} - -int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before, - const char *not_after ) -{ - if( strlen( not_before ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 || - strlen( not_after ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 ) - { - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - } - strncpy( ctx->not_before, not_before, MBEDTLS_X509_RFC5280_UTC_TIME_LEN ); - strncpy( ctx->not_after , not_after , MBEDTLS_X509_RFC5280_UTC_TIME_LEN ); - ctx->not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z'; - ctx->not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z'; - - return( 0 ); -} - -int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx, - const char *oid, size_t oid_len, - int critical, - const unsigned char *val, size_t val_len ) -{ - return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len, - critical, val, val_len ); -} - -int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx, - int is_ca, int max_pathlen ) -{ - int ret; - unsigned char buf[9]; - unsigned char *c = buf + sizeof(buf); - size_t len = 0; - - memset( buf, 0, sizeof(buf) ); - - if( is_ca && max_pathlen > 127 ) - return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); - - if( is_ca ) - { - if( max_pathlen >= 0 ) - { - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, max_pathlen ) ); - } - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( &c, buf, 1 ) ); - } - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_BASIC_CONSTRAINTS, - MBEDTLS_OID_SIZE( MBEDTLS_OID_BASIC_CONSTRAINTS ), - 0, buf + sizeof(buf) - len, len ); -} - -#if defined(MBEDTLS_SHA1_C) -int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx ) -{ - int ret; - unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */ - unsigned char *c = buf + sizeof(buf); - size_t len = 0; - - memset( buf, 0, sizeof(buf) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->subject_key ) ); - - ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len, - buf + sizeof( buf ) - 20 ); - if( ret != 0 ) - return( ret ); - c = buf + sizeof( buf ) - 20; - len = 20; - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_OCTET_STRING ) ); - - return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER, - MBEDTLS_OID_SIZE( MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER ), - 0, buf + sizeof(buf) - len, len ); -} - -int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx ) -{ - int ret; - unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */ - unsigned char *c = buf + sizeof( buf ); - size_t len = 0; - - memset( buf, 0, sizeof(buf) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->issuer_key ) ); - - ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len, - buf + sizeof( buf ) - 20 ); - if( ret != 0 ) - return( ret ); - c = buf + sizeof( buf ) - 20; - len = 20; - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0 ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER, - MBEDTLS_OID_SIZE( MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER ), - 0, buf + sizeof( buf ) - len, len ); -} -#endif /* MBEDTLS_SHA1_C */ - -int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx, - unsigned int key_usage ) -{ - unsigned char buf[5], ku[2]; - unsigned char *c; - int ret; - const unsigned int allowed_bits = MBEDTLS_X509_KU_DIGITAL_SIGNATURE | - MBEDTLS_X509_KU_NON_REPUDIATION | - MBEDTLS_X509_KU_KEY_ENCIPHERMENT | - MBEDTLS_X509_KU_DATA_ENCIPHERMENT | - MBEDTLS_X509_KU_KEY_AGREEMENT | - MBEDTLS_X509_KU_KEY_CERT_SIGN | - MBEDTLS_X509_KU_CRL_SIGN | - MBEDTLS_X509_KU_ENCIPHER_ONLY | - MBEDTLS_X509_KU_DECIPHER_ONLY; - - /* Check that nothing other than the allowed flags is set */ - if( ( key_usage & ~allowed_bits ) != 0 ) - return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE ); - - c = buf + 5; - ku[0] = (unsigned char)( key_usage ); - ku[1] = (unsigned char)( key_usage >> 8 ); - ret = mbedtls_asn1_write_named_bitstring( &c, buf, ku, 9 ); - - if( ret < 0 ) - return( ret ); - else if( ret < 3 || ret > 5 ) - return( MBEDTLS_ERR_X509_INVALID_FORMAT ); - - ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_KEY_USAGE, - MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ), - 1, c, (size_t)ret ); - if( ret != 0 ) - return( ret ); - - return( 0 ); -} - -int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx, - unsigned char ns_cert_type ) -{ - unsigned char buf[4]; - unsigned char *c; - int ret; - - c = buf + 4; - - ret = mbedtls_asn1_write_named_bitstring( &c, buf, &ns_cert_type, 8 ); - if( ret < 3 || ret > 4 ) - return( ret ); - - ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE, - MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ), - 0, c, (size_t)ret ); - if( ret != 0 ) - return( ret ); - - return( 0 ); -} - -static int x509_write_time( unsigned char **p, unsigned char *start, - const char *t, size_t size ) -{ - int ret; - size_t len = 0; - - /* - * write MBEDTLS_ASN1_UTC_TIME if year < 2050 (2 bytes shorter) - */ - if( t[0] == '2' && t[1] == '0' && t[2] < '5' ) - { - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, - (const unsigned char *) t + 2, - size - 2 ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_UTC_TIME ) ); - } - else - { - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, - (const unsigned char *) t, - size ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_GENERALIZED_TIME ) ); - } - - return( (int) len ); -} - -int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ) -{ - int ret; - const char *sig_oid; - size_t sig_oid_len = 0; - unsigned char *c, *c2; - unsigned char hash[64]; - unsigned char sig[MBEDTLS_MPI_MAX_SIZE]; - unsigned char tmp_buf[2048]; - size_t sub_len = 0, pub_len = 0, sig_and_oid_len = 0, sig_len; - size_t len = 0; - mbedtls_pk_type_t pk_alg; - - /* - * Prepare data to be signed in tmp_buf - */ - c = tmp_buf + sizeof( tmp_buf ); - - /* Signature algorithm needed in TBS, and later for actual signature */ - - /* There's no direct way of extracting a signature algorithm - * (represented as an element of mbedtls_pk_type_t) from a PK instance. */ - if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_RSA ) ) - pk_alg = MBEDTLS_PK_RSA; - else if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_ECDSA ) ) - pk_alg = MBEDTLS_PK_ECDSA; - else - return( MBEDTLS_ERR_X509_INVALID_ALG ); - - if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg, - &sig_oid, &sig_oid_len ) ) != 0 ) - { - return( ret ); - } - - /* - * Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension - */ - - /* Only for v3 */ - if( ctx->version == MBEDTLS_X509_CRT_VERSION_3 ) - { - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | - MBEDTLS_ASN1_CONSTRUCTED | 3 ) ); - } - - /* - * SubjectPublicKeyInfo - */ - MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->subject_key, - tmp_buf, c - tmp_buf ) ); - c -= pub_len; - len += pub_len; - - /* - * Subject ::= Name - */ - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) ); - - /* - * Validity ::= SEQUENCE { - * notBefore Time, - * notAfter Time } - */ - sub_len = 0; - - MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_after, - MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) ); - - MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_before, - MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) ); - - len += sub_len; - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - /* - * Issuer ::= Name - */ - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->issuer ) ); - - /* - * Signature ::= AlgorithmIdentifier - */ - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, tmp_buf, - sig_oid, strlen( sig_oid ), 0 ) ); - - /* - * Serial ::= INTEGER - */ - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, tmp_buf, &ctx->serial ) ); - - /* - * Version ::= INTEGER { v1(0), v2(1), v3(2) } - */ - - /* Can be omitted for v1 */ - if( ctx->version != MBEDTLS_X509_CRT_VERSION_1 ) - { - sub_len = 0; - MBEDTLS_ASN1_CHK_ADD( sub_len, mbedtls_asn1_write_int( &c, tmp_buf, ctx->version ) ); - len += sub_len; - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | - MBEDTLS_ASN1_CONSTRUCTED | 0 ) ); - } - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - /* - * Make signature - */ - if( ( ret = mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, - len, hash ) ) != 0 ) - { - return( ret ); - } - - if( ( ret = mbedtls_pk_sign( ctx->issuer_key, ctx->md_alg, hash, 0, sig, &sig_len, - f_rng, p_rng ) ) != 0 ) - { - return( ret ); - } - - /* - * Write data to output buffer - */ - c2 = buf + size; - MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf, - sig_oid, sig_oid_len, sig, sig_len ) ); - - if( len > (size_t)( c2 - buf ) ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); - - c2 -= len; - memcpy( c2, c, len ); - - len += sig_and_oid_len; - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - return( (int) len ); -} - -#define PEM_BEGIN_CRT "-----BEGIN CERTIFICATE-----\n" -#define PEM_END_CRT "-----END CERTIFICATE-----\n" - -#if defined(MBEDTLS_PEM_WRITE_C) -int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *crt, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ) -{ - int ret; - unsigned char output_buf[4096]; - size_t olen = 0; - - if( ( ret = mbedtls_x509write_crt_der( crt, output_buf, sizeof(output_buf), - f_rng, p_rng ) ) < 0 ) - { - return( ret ); - } - - if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CRT, PEM_END_CRT, - output_buf + sizeof(output_buf) - ret, - ret, buf, size, &olen ) ) != 0 ) - { - return( ret ); - } - - return( 0 ); -} -#endif /* MBEDTLS_PEM_WRITE_C */ - -#endif /* MBEDTLS_X509_CRT_WRITE_C */ diff --git a/library/x509write_csr.c b/library/x509write_csr.c deleted file mode 100644 index 8dc39e7a5..000000000 --- a/library/x509write_csr.c +++ /dev/null @@ -1,287 +0,0 @@ -/* - * X.509 Certificate Signing Request writing - * - * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * This file is part of mbed TLS (https://tls.mbed.org) - */ -/* - * References: - * - CSRs: PKCS#10 v1.7 aka RFC 2986 - * - attributes: PKCS#9 v2.0 aka RFC 2985 - */ - -#if !defined(MBEDTLS_CONFIG_FILE) -#include "mbedtls/config.h" -#else -#include MBEDTLS_CONFIG_FILE -#endif - -#if defined(MBEDTLS_X509_CSR_WRITE_C) - -#include "mbedtls/x509_csr.h" -#include "mbedtls/oid.h" -#include "mbedtls/asn1write.h" -#include "mbedtls/platform_util.h" - -#if defined(MBEDTLS_USE_PSA_CRYPTO) -#include "psa/crypto.h" -#include "mbedtls/psa_util.h" -#endif - -#include -#include - -#if defined(MBEDTLS_PEM_WRITE_C) -#include "mbedtls/pem.h" -#endif - -void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx ) -{ - memset( ctx, 0, sizeof( mbedtls_x509write_csr ) ); -} - -void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx ) -{ - mbedtls_asn1_free_named_data_list( &ctx->subject ); - mbedtls_asn1_free_named_data_list( &ctx->extensions ); - - mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_csr ) ); -} - -void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg ) -{ - ctx->md_alg = md_alg; -} - -void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key ) -{ - ctx->key = key; -} - -int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx, - const char *subject_name ) -{ - return mbedtls_x509_string_to_names( &ctx->subject, subject_name ); -} - -int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx, - const char *oid, size_t oid_len, - const unsigned char *val, size_t val_len ) -{ - return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len, - 0, val, val_len ); -} - -int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage ) -{ - unsigned char buf[4]; - unsigned char *c; - int ret; - - c = buf + 4; - - ret = mbedtls_asn1_write_named_bitstring( &c, buf, &key_usage, 8 ); - if( ret < 3 || ret > 4 ) - return( ret ); - - ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_KEY_USAGE, - MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ), - c, (size_t)ret ); - if( ret != 0 ) - return( ret ); - - return( 0 ); -} - -int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx, - unsigned char ns_cert_type ) -{ - unsigned char buf[4]; - unsigned char *c; - int ret; - - c = buf + 4; - - ret = mbedtls_asn1_write_named_bitstring( &c, buf, &ns_cert_type, 8 ); - if( ret < 3 || ret > 4 ) - return( ret ); - - ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE, - MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ), - c, (size_t)ret ); - if( ret != 0 ) - return( ret ); - - return( 0 ); -} - -int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ) -{ - int ret; - const char *sig_oid; - size_t sig_oid_len = 0; - unsigned char *c, *c2; - unsigned char hash[64]; - unsigned char sig[MBEDTLS_MPI_MAX_SIZE]; - unsigned char tmp_buf[2048]; - size_t pub_len = 0, sig_and_oid_len = 0, sig_len; - size_t len = 0; - mbedtls_pk_type_t pk_alg; -#if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT; - size_t hash_len; - psa_algorithm_t hash_alg = mbedtls_psa_translate_md( ctx->md_alg ); -#endif /* MBEDTLS_USE_PSA_CRYPTO */ - /* - * Prepare data to be signed in tmp_buf - */ - c = tmp_buf + sizeof( tmp_buf ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) ); - - if( len ) - { - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SET ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( &c, tmp_buf, MBEDTLS_OID_PKCS9_CSR_EXT_REQ, - MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_CSR_EXT_REQ ) ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - } - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_CONTEXT_SPECIFIC ) ); - - MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->key, - tmp_buf, c - tmp_buf ) ); - c -= pub_len; - len += pub_len; - - /* - * Subject ::= Name - */ - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) ); - - /* - * Version ::= INTEGER { v1(0), v2(1), v3(2) } - */ - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, tmp_buf, 0 ) ); - - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - /* - * Prepare signature - * Note: hash errors can happen only after an internal error - */ -#if defined(MBEDTLS_USE_PSA_CRYPTO) - if( psa_hash_setup( &hash_operation, hash_alg ) != PSA_SUCCESS ) - return( MBEDTLS_ERR_X509_FATAL_ERROR ); - - if( psa_hash_update( &hash_operation, c, len ) != PSA_SUCCESS ) - return( MBEDTLS_ERR_X509_FATAL_ERROR ); - - if( psa_hash_finish( &hash_operation, hash, sizeof( hash ), &hash_len ) - != PSA_SUCCESS ) - { - return( MBEDTLS_ERR_X509_FATAL_ERROR ); - } -#else /* MBEDTLS_USE_PSA_CRYPTO */ - mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, len, hash ); -#endif - if( ( ret = mbedtls_pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len, - f_rng, p_rng ) ) != 0 ) - { - return( ret ); - } - - if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_RSA ) ) - pk_alg = MBEDTLS_PK_RSA; - else if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_ECDSA ) ) - pk_alg = MBEDTLS_PK_ECDSA; - else - return( MBEDTLS_ERR_X509_INVALID_ALG ); - - if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg, - &sig_oid, &sig_oid_len ) ) != 0 ) - { - return( ret ); - } - - /* - * Write data to output buffer - */ - c2 = buf + size; - MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf, - sig_oid, sig_oid_len, sig, sig_len ) ); - - if( len > (size_t)( c2 - buf ) ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); - - c2 -= len; - memcpy( c2, c, len ); - - len += sig_and_oid_len; - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - - return( (int) len ); -} - -#define PEM_BEGIN_CSR "-----BEGIN CERTIFICATE REQUEST-----\n" -#define PEM_END_CSR "-----END CERTIFICATE REQUEST-----\n" - -#if defined(MBEDTLS_PEM_WRITE_C) -int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ) -{ - int ret; - unsigned char output_buf[4096]; - size_t olen = 0; - - if( ( ret = mbedtls_x509write_csr_der( ctx, output_buf, sizeof(output_buf), - f_rng, p_rng ) ) < 0 ) - { - return( ret ); - } - - if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CSR, PEM_END_CSR, - output_buf + sizeof(output_buf) - ret, - ret, buf, size, &olen ) ) != 0 ) - { - return( ret ); - } - - return( 0 ); -} -#endif /* MBEDTLS_PEM_WRITE_C */ - -#endif /* MBEDTLS_X509_CSR_WRITE_C */ diff --git a/programs/test/cpp_dummy_build.cpp b/programs/test/cpp_dummy_build.cpp index f33038f6d..c1dc7433d 100644 --- a/programs/test/cpp_dummy_build.cpp +++ b/programs/test/cpp_dummy_build.cpp @@ -46,7 +46,6 @@ #include "mbedtls/cipher_internal.h" #include "mbedtls/cmac.h" #include "mbedtls/ctr_drbg.h" -#include "mbedtls/debug.h" #include "mbedtls/des.h" #include "mbedtls/dhm.h" #include "mbedtls/ecdh.h" @@ -66,15 +65,12 @@ #include "mbedtls/md4.h" #include "mbedtls/md5.h" #include "mbedtls/md_internal.h" -#include "mbedtls/net.h" -#include "mbedtls/net_sockets.h" #include "mbedtls/nist_kw.h" #include "mbedtls/oid.h" #include "mbedtls/padlock.h" #include "mbedtls/pem.h" #include "mbedtls/pk.h" #include "mbedtls/pk_internal.h" -#include "mbedtls/pkcs11.h" #include "mbedtls/pkcs12.h" #include "mbedtls/pkcs5.h" #include "mbedtls/platform_time.h" @@ -87,12 +83,6 @@ #include "mbedtls/sha1.h" #include "mbedtls/sha256.h" #include "mbedtls/sha512.h" -#include "mbedtls/ssl.h" -#include "mbedtls/ssl_cache.h" -#include "mbedtls/ssl_ciphersuites.h" -#include "mbedtls/ssl_cookie.h" -#include "mbedtls/ssl_internal.h" -#include "mbedtls/ssl_ticket.h" #include "mbedtls/threading.h" #include "mbedtls/timing.h" #include "mbedtls/version.h" diff --git a/programs/test/query_config.c b/programs/test/query_config.c index 94c8ec16d..fc25353fa 100644 --- a/programs/test/query_config.c +++ b/programs/test/query_config.c @@ -53,7 +53,6 @@ #include "mbedtls/cipher.h" #include "mbedtls/cmac.h" #include "mbedtls/ctr_drbg.h" -#include "mbedtls/debug.h" #include "mbedtls/des.h" #include "mbedtls/dhm.h" #include "mbedtls/ecdh.h" @@ -72,13 +71,11 @@ #include "mbedtls/md4.h" #include "mbedtls/md5.h" #include "mbedtls/memory_buffer_alloc.h" -#include "mbedtls/net_sockets.h" #include "mbedtls/nist_kw.h" #include "mbedtls/oid.h" #include "mbedtls/padlock.h" #include "mbedtls/pem.h" #include "mbedtls/pk.h" -#include "mbedtls/pkcs11.h" #include "mbedtls/pkcs12.h" #include "mbedtls/pkcs5.h" #include "mbedtls/platform_time.h" @@ -89,19 +86,9 @@ #include "mbedtls/sha1.h" #include "mbedtls/sha256.h" #include "mbedtls/sha512.h" -#include "mbedtls/ssl.h" -#include "mbedtls/ssl_cache.h" -#include "mbedtls/ssl_ciphersuites.h" -#include "mbedtls/ssl_cookie.h" -#include "mbedtls/ssl_internal.h" -#include "mbedtls/ssl_ticket.h" #include "mbedtls/threading.h" #include "mbedtls/timing.h" #include "mbedtls/version.h" -#include "mbedtls/x509.h" -#include "mbedtls/x509_crl.h" -#include "mbedtls/x509_crt.h" -#include "mbedtls/x509_csr.h" #include "mbedtls/xtea.h" #include diff --git a/scripts/data_files/query_config.fmt b/scripts/data_files/query_config.fmt index 064da4c38..600f13030 100644 --- a/scripts/data_files/query_config.fmt +++ b/scripts/data_files/query_config.fmt @@ -53,7 +53,6 @@ #include "mbedtls/cipher.h" #include "mbedtls/cmac.h" #include "mbedtls/ctr_drbg.h" -#include "mbedtls/debug.h" #include "mbedtls/des.h" #include "mbedtls/dhm.h" #include "mbedtls/ecdh.h" @@ -72,13 +71,11 @@ #include "mbedtls/md4.h" #include "mbedtls/md5.h" #include "mbedtls/memory_buffer_alloc.h" -#include "mbedtls/net_sockets.h" #include "mbedtls/nist_kw.h" #include "mbedtls/oid.h" #include "mbedtls/padlock.h" #include "mbedtls/pem.h" #include "mbedtls/pk.h" -#include "mbedtls/pkcs11.h" #include "mbedtls/pkcs12.h" #include "mbedtls/pkcs5.h" #include "mbedtls/platform_time.h" @@ -89,19 +86,9 @@ #include "mbedtls/sha1.h" #include "mbedtls/sha256.h" #include "mbedtls/sha512.h" -#include "mbedtls/ssl.h" -#include "mbedtls/ssl_cache.h" -#include "mbedtls/ssl_ciphersuites.h" -#include "mbedtls/ssl_cookie.h" -#include "mbedtls/ssl_internal.h" -#include "mbedtls/ssl_ticket.h" #include "mbedtls/threading.h" #include "mbedtls/timing.h" #include "mbedtls/version.h" -#include "mbedtls/x509.h" -#include "mbedtls/x509_crl.h" -#include "mbedtls/x509_crt.h" -#include "mbedtls/x509_csr.h" #include "mbedtls/xtea.h" #include diff --git a/visualc/VS2010/mbedTLS.vcxproj b/visualc/VS2010/mbedTLS.vcxproj index c56e976a7..07c80e84f 100644 --- a/visualc/VS2010/mbedTLS.vcxproj +++ b/visualc/VS2010/mbedTLS.vcxproj @@ -168,7 +168,6 @@ - @@ -189,15 +188,12 @@ - - - @@ -211,19 +207,9 @@ - - - - - - - - - - @@ -255,14 +241,12 @@ - - @@ -283,14 +267,12 @@ - - @@ -308,24 +290,10 @@ - - - - - - - - - - - - - -