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Merge remote-tracking branch 'restricted/mbedtls-2.28-restricted' into mbedtls-2.28.1rc0-pr

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This commit is contained in:
Dave Rodgman 2022-07-11 10:42:55 +01:00
commit df275c4227
20 changed files with 631 additions and 88 deletions
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4
ChangeLog.d/bignum-0-mod-2.txt Normal file
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@ -0,0 +1,4 @@
Bugfix
* Fix a null pointer dereference when performing some operations on zero
represented with 0 limbs (specifically mbedtls_mpi_mod_int() dividing
by 2, and mbedtls_mpi_write_string() in base 2).

6
ChangeLog.d/buf-overread-use-psa-static-ecdh.txt Normal file
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@ -0,0 +1,6 @@
Security
* Fix a potential heap buffer overread in TLS 1.2 server-side when
MBEDTLS_USE_PSA_CRYPTO is enabled, an opaque key (created with
mbedtls_pk_setup_opaque()) is provisioned, and a static ECDH ciphersuite
is selected. This may result in an application crash or potentially an
information leak.

9
ChangeLog.d/cookie_parsing_bug.txt Normal file
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@ -0,0 +1,9 @@
Security
* Fix a buffer overread in DTLS ClientHello parsing in servers with
MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled. An unauthenticated client
or a man-in-the-middle could cause a DTLS server to read up to 255 bytes
after the end of the SSL input buffer. The buffer overread only happens
when MBEDTLS_SSL_IN_CONTENT_LEN is less than a threshold that depends on
the exact configuration: 258 bytes if using mbedtls_ssl_cookie_check(),
and possibly up to 571 bytes with a custom cookie check function.
Reported by the Cybeats PSI Team.

4
ChangeLog.d/fix_tls_record_size_check.txt Normal file
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@ -0,0 +1,4 @@
Bugfix
* Fix record sizes larger than 16384 being sometimes accepted despite being
non-compliant. This could not lead to a buffer overflow. In particular,
application data size was already checked correctly.

75
include/mbedtls/pk.h
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@ -217,32 +217,6 @@ typedef struct
typedef void mbedtls_pk_restart_ctx;
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
#if defined(MBEDTLS_RSA_C)
/**
* Quick access to an RSA context inside a PK context.
*
* \warning You must make sure the PK context actually holds an RSA context
* before using this function!
*/
static inline mbedtls_rsa_context *mbedtls_pk_rsa( const mbedtls_pk_context pk )
{
return( (mbedtls_rsa_context *) (pk).pk_ctx );
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/**
* Quick access to an EC context inside a PK context.
*
* \warning You must make sure the PK context actually holds an EC context
* before using this function!
*/
static inline mbedtls_ecp_keypair *mbedtls_pk_ec( const mbedtls_pk_context pk )
{
return( (mbedtls_ecp_keypair *) (pk).pk_ctx );
}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
/**
* \brief Types for RSA-alt abstraction
@ -656,6 +630,55 @@ const char * mbedtls_pk_get_name( const mbedtls_pk_context *ctx );
*/
mbedtls_pk_type_t mbedtls_pk_get_type( const mbedtls_pk_context *ctx );
#if defined(MBEDTLS_RSA_C)
/**
* Quick access to an RSA context inside a PK context.
*
* \warning This function can only be used when the type of the context, as
* returned by mbedtls_pk_get_type(), is #MBEDTLS_PK_RSA.
* Ensuring that is the caller's responsibility.
* Alternatively, you can check whether this function returns NULL.
*
* \return The internal RSA context held by the PK context, or NULL.
*/
static inline mbedtls_rsa_context *mbedtls_pk_rsa( const mbedtls_pk_context pk )
{
switch( mbedtls_pk_get_type( &pk ) )
{
case MBEDTLS_PK_RSA:
return( (mbedtls_rsa_context *) (pk).pk_ctx );
default:
return( NULL );
}
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/**
* Quick access to an EC context inside a PK context.
*
* \warning This function can only be used when the type of the context, as
* returned by mbedtls_pk_get_type(), is #MBEDTLS_PK_ECKEY,
* #MBEDTLS_PK_ECKEY_DH, or #MBEDTLS_PK_ECDSA.
* Ensuring that is the caller's responsibility.
* Alternatively, you can check whether this function returns NULL.
*
* \return The internal EC context held by the PK context, or NULL.
*/
static inline mbedtls_ecp_keypair *mbedtls_pk_ec( const mbedtls_pk_context pk )
{
switch( mbedtls_pk_get_type( &pk ) )
{
case MBEDTLS_PK_ECKEY:
case MBEDTLS_PK_ECKEY_DH:
case MBEDTLS_PK_ECDSA:
return( (mbedtls_ecp_keypair *) (pk).pk_ctx );
default:
return( NULL );
}
}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_PK_PARSE_C)
/** \ingroup pk_module */
/**

43
include/mbedtls/ssl_internal.h
View File

@ -934,16 +934,22 @@ void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform );
*/
void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl );
void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl );
void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl );
void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl );
@ -1023,27 +1029,39 @@ void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl );
* following the above definition.
*
*/
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
unsigned update_hs_digest );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_write_handshake_msg( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
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)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex );
/**
@ -1108,14 +1126,18 @@ mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig );
mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash );
unsigned char mbedtls_ssl_hash_from_md_alg( int md );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md );
#if defined(MBEDTLS_ECP_C)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_check_curve_tls_id( const mbedtls_ssl_context *ssl, uint16_t tls_id );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl,
mbedtls_md_type_t md );
#endif
@ -1171,6 +1193,7 @@ static inline mbedtls_x509_crt *mbedtls_ssl_own_cert( mbedtls_ssl_context *ssl )
*
* Return 0 if everything is OK, -1 if not.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert,
const mbedtls_ssl_ciphersuite_t *ciphersuite,
int cert_endpoint,
@ -1219,21 +1242,26 @@ static inline size_t mbedtls_ssl_hs_hdr_len( const mbedtls_ssl_context *ssl )
#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 );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_resend( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl );
#endif
/* Visible for testing purposes only */
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context const *ssl );
void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl );
#endif
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst,
const mbedtls_ssl_session *src );
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl,
unsigned char *output,
unsigned char *data, size_t data_len );
@ -1243,6 +1271,7 @@ int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl,
#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. */
MBEDTLS_CHECK_RETURN_CRITICAL
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,
@ -1255,11 +1284,13 @@ int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
#endif
void mbedtls_ssl_transform_init( mbedtls_ssl_transform *transform );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_encrypt_buf( mbedtls_ssl_context *ssl,
mbedtls_ssl_transform *transform,
mbedtls_record *rec,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_decrypt_buf( mbedtls_ssl_context const *ssl,
mbedtls_ssl_transform *transform,
mbedtls_record *rec );
@ -1277,10 +1308,12 @@ static inline size_t mbedtls_ssl_ep_len( const mbedtls_ssl_context *ssl )
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_resend_hello_request( mbedtls_ssl_context *ssl );
#endif /* MBEDTLS_SSL_PROTO_DTLS */
void mbedtls_ssl_set_timer( mbedtls_ssl_context *ssl, uint32_t millisecs );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_check_timer( mbedtls_ssl_context *ssl );
void mbedtls_ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl );
@ -1288,6 +1321,7 @@ void mbedtls_ssl_update_out_pointers( mbedtls_ssl_context *ssl,
mbedtls_ssl_transform *transform );
void mbedtls_ssl_update_in_pointers( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial );
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
@ -1297,6 +1331,7 @@ void mbedtls_ssl_dtls_replay_reset( mbedtls_ssl_context *ssl );
void mbedtls_ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_start_renegotiation( mbedtls_ssl_context *ssl );
#endif /* MBEDTLS_SSL_RENEGOTIATION */
@ -1306,4 +1341,12 @@ void mbedtls_ssl_buffering_free( mbedtls_ssl_context *ssl );
void mbedtls_ssl_flight_free( mbedtls_ssl_flight_item *flight );
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if defined(MBEDTLS_TEST_HOOKS)
int mbedtls_ssl_check_dtls_clihlo_cookie(
mbedtls_ssl_context *ssl,
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 );
#endif
#endif /* ssl_internal.h */

2
library/bignum.c
View File

@ -1829,7 +1829,7 @@ int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_
/*
* handle trivial cases
*/
if( b == 1 )
if( b == 1 || A->n == 0 )
{
*r = 0;
return( 0 );

1
library/ssl_ciphersuites.c
View File

@ -2181,6 +2181,7 @@ const int *mbedtls_ssl_list_ciphersuites( void )
static int supported_ciphersuites[MAX_CIPHERSUITES];
static int supported_init = 0;
MBEDTLS_CHECK_RETURN_CRITICAL
static int ciphersuite_is_removed( const mbedtls_ssl_ciphersuite_t *cs_info )
{
(void)cs_info;

59
library/ssl_cli.c
View File

@ -53,6 +53,7 @@
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_conf_has_static_psk( mbedtls_ssl_config const *conf )
{
if( conf->psk_identity == NULL ||
@ -73,6 +74,7 @@ static int ssl_conf_has_static_psk( mbedtls_ssl_config const *conf )
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_conf_has_static_raw_psk( mbedtls_ssl_config const *conf )
{
if( conf->psk_identity == NULL ||
@ -91,6 +93,7 @@ static int ssl_conf_has_static_raw_psk( mbedtls_ssl_config const *conf )
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_hostname_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -161,6 +164,7 @@ static int ssl_write_hostname_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -204,6 +208,7 @@ static int ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
*/
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -302,6 +307,7 @@ static int ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -373,6 +379,7 @@ static int ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl,
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -404,6 +411,7 @@ static int ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl,
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -477,6 +485,7 @@ static int ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_cid_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -523,6 +532,7 @@ static int ssl_write_cid_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -555,6 +565,7 @@ static int ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -585,6 +596,7 @@ static int ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -616,6 +628,7 @@ static int ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -647,6 +660,7 @@ static int ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -689,6 +703,7 @@ static int ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_ALPN)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_alpn_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -748,6 +763,7 @@ static int ssl_write_alpn_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_ALPN */
#if defined(MBEDTLS_SSL_DTLS_SRTP)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_use_srtp_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
@ -868,6 +884,7 @@ static int ssl_write_use_srtp_ext( mbedtls_ssl_context *ssl,
/*
* Generate random bytes for ClientHello
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_generate_random( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -917,6 +934,7 @@ static int ssl_generate_random( mbedtls_ssl_context *ssl )
*
* \return 0 if valid, else 1
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_validate_ciphersuite(
const mbedtls_ssl_ciphersuite_t * suite_info,
const mbedtls_ssl_context * ssl,
@ -960,6 +978,7 @@ static int ssl_validate_ciphersuite(
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -1450,6 +1469,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1494,6 +1514,7 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
}
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1520,6 +1541,7 @@ static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1545,6 +1567,7 @@ static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1601,6 +1624,7 @@ static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1627,6 +1651,7 @@ static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1653,6 +1678,7 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1679,6 +1705,7 @@ static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1724,6 +1751,7 @@ static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl,
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1758,6 +1786,7 @@ static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_ALPN)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
@ -1828,6 +1857,7 @@ static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_ALPN */
#if defined(MBEDTLS_SSL_DTLS_SRTP)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -1948,6 +1978,7 @@ static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl,
* Parse HelloVerifyRequest. Only called after verifying the HS type.
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
{
const unsigned char *p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
@ -2031,6 +2062,7 @@ static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
{
int ret, i;
@ -2599,6 +2631,7 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end )
@ -2645,6 +2678,7 @@ static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl,
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl )
{
const mbedtls_ecp_curve_info *curve_info;
@ -2686,6 +2720,7 @@ static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_USE_PSA_CRYPTO) && \
( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) )
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_server_ecdh_params_psa( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end )
@ -2752,6 +2787,7 @@ static int ssl_parse_server_ecdh_params_psa( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end )
@ -2791,6 +2827,7 @@ static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl,
MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end )
@ -2837,6 +2874,7 @@ static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl,
/*
* Generate a pre-master secret and encrypt it with the server's RSA key
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
size_t offset, size_t *olen,
size_t pms_offset )
@ -2924,6 +2962,7 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end,
@ -2990,6 +3029,7 @@ static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3008,6 +3048,8 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
peer_pk = &ssl->session_negotiate->peer_cert->pk;
#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
/* This is a public key, so it can't be opaque, so can_do() is a good
* enough check to ensure pk_ec() is safe to use below. */
if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_ECKEY ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) );
@ -3041,6 +3083,7 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||
MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_server_key_exchange( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3447,6 +3490,7 @@ exit:
}
#if ! defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
@ -3465,6 +3509,7 @@ static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3636,6 +3681,7 @@ exit:
}
#endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3675,6 +3721,7 @@ static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl )
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3936,7 +3983,10 @@ ecdh_calc_secret:
#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 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with RSA-PSK" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if( ( ret = ssl_write_encrypted_pms( ssl, header_len,
@ -3951,7 +4001,10 @@ ecdh_calc_secret:
#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 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with DHE-PSK" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
/*
@ -3988,7 +4041,10 @@ ecdh_calc_secret:
#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 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with ECDHE-PSK" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
/*
@ -4098,6 +4154,7 @@ ecdh_calc_secret:
}
#if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
@ -4123,6 +4180,7 @@ static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
@ -4295,6 +4353,7 @@ sign:
#endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_new_session_ticket( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;

1
library/ssl_cookie.c
View File

@ -122,6 +122,7 @@ int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx,
/*
* Generate the HMAC part of a cookie
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_cookie_hmac( mbedtls_md_context_t *hmac_ctx,
const unsigned char time[4],
unsigned char **p, unsigned char *end,

123
library/ssl_msg.c
View File

@ -91,6 +91,7 @@ int mbedtls_ssl_check_timer( mbedtls_ssl_context *ssl )
}
#if defined(MBEDTLS_SSL_RECORD_CHECKING)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_record_header( mbedtls_ssl_context const *ssl,
unsigned char *buf,
size_t len,
@ -165,11 +166,16 @@ exit:
static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl,
uint8_t slot );
static void ssl_free_buffered_record( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_load_buffered_message( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_load_buffered_record( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_buffer_message( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_buffer_future_record( mbedtls_ssl_context *ssl,
mbedtls_record const *rec );
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl );
static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl )
@ -187,6 +193,7 @@ static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl )
return( out_buf_len );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl )
{
size_t const bytes_written = ssl->out_left;
@ -203,6 +210,7 @@ static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl )
return( (int) ( mtu - bytes_written ) );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -254,6 +262,7 @@ static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl
* Double the retransmit timeout value, within the allowed range,
* returning -1 if the maximum value has already been reached.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_double_retransmit_timeout( mbedtls_ssl_context *ssl )
{
uint32_t new_timeout;
@ -353,6 +362,7 @@ static size_t ssl_compute_padding_length( size_t len,
* - A negative error code if `max_len` didn't offer enough space
* for the expansion.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_build_inner_plaintext( unsigned char *content,
size_t *content_size,
size_t remaining,
@ -380,6 +390,7 @@ static int ssl_build_inner_plaintext( unsigned char *content,
/* This function parses a (D)TLSInnerPlaintext structure.
* See ssl_build_inner_plaintext() for details. */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_inner_plaintext( unsigned char const *content,
size_t *content_size,
uint8_t *rec_type )
@ -474,6 +485,7 @@ static void ssl_extract_add_data_from_record( unsigned char* add_data,
/*
* SSLv3.0 MAC functions
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_mac( mbedtls_md_context_t *md_ctx,
const unsigned char *secret,
const unsigned char *buf, size_t len,
@ -541,6 +553,7 @@ static int ssl_mac( mbedtls_md_context_t *md_ctx,
#if defined(MBEDTLS_GCM_C) || \
defined(MBEDTLS_CCM_C) || \
defined(MBEDTLS_CHACHAPOLY_C)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_transform_aead_dynamic_iv_is_explicit(
mbedtls_ssl_transform const *transform )
{
@ -1738,6 +1751,7 @@ int mbedtls_ssl_decrypt_buf( mbedtls_ssl_context const *ssl,
/*
* Compression/decompression functions
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_compress_buf( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -1790,6 +1804,7 @@ static int ssl_compress_buf( mbedtls_ssl_context *ssl )
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_decompress_buf( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -2149,6 +2164,7 @@ int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl )
/*
* Append current handshake message to current outgoing flight
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_flight_append( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_flight_item *msg;
@ -2215,6 +2231,7 @@ void mbedtls_ssl_flight_free( mbedtls_ssl_flight_item *flight )
/*
* Swap transform_out and out_ctr with the alternative ones
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_swap_epochs( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_transform *tmp_transform;
@ -2857,6 +2874,7 @@ int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush )
#if defined(MBEDTLS_SSL_PROTO_DTLS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_hs_is_proper_fragment( mbedtls_ssl_context *ssl )
{
if( ssl->in_msglen < ssl->in_hslen ||
@ -2882,6 +2900,7 @@ static uint32_t ssl_get_hs_frag_off( mbedtls_ssl_context const *ssl )
ssl->in_msg[8] );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_hs_header( mbedtls_ssl_context const *ssl )
{
uint32_t msg_len, frag_off, frag_len;
@ -2948,6 +2967,7 @@ static void ssl_bitmask_set( unsigned char *mask, size_t offset, size_t len )
/*
* Check that bitmask is full
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_bitmask_check( unsigned char *mask, size_t len )
{
size_t i;
@ -3147,6 +3167,7 @@ static inline uint64_t ssl_load_six_bytes( unsigned char *buf )
( (uint64_t) buf[5] ) );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int mbedtls_ssl_dtls_record_replay_check( mbedtls_ssl_context *ssl, uint8_t *record_in_ctr )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3229,8 +3250,8 @@ void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
/*
* 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.
* 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
@ -3239,10 +3260,10 @@ void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl )
* 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,
MBEDTLS_CHECK_RETURN_CRITICAL
MBEDTLS_STATIC_TESTABLE
int mbedtls_ssl_check_dtls_clihlo_cookie(
mbedtls_ssl_context *ssl,
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 )
@ -3276,26 +3297,53 @@ static int ssl_check_dtls_clihlo_cookie(
*
* Minimum length is 61 bytes.
*/
if( in_len < 61 ||
in[0] != MBEDTLS_SSL_MSG_HANDSHAKE ||
MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: in_len=%u",
(unsigned) in_len ) );
MBEDTLS_SSL_DEBUG_BUF( 4, "cli_id", cli_id, cli_id_len );
if( in_len < 61 )
{
MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: record too short" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
if( in[0] != MBEDTLS_SSL_MSG_HANDSHAKE ||
in[3] != 0 || in[4] != 0 ||
in[19] != 0 || in[20] != 0 || in[21] != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: not a good ClientHello" ) );
MBEDTLS_SSL_DEBUG_MSG( 4, ( " type=%u epoch=%u fragment_offset=%u",
in[0],
(unsigned) in[3] << 8 | in[4],
(unsigned) in[19] << 16 | in[20] << 8 | in[21] ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
sid_len = in[59];
if( sid_len > in_len - 61 )
if( 59 + 1 + sid_len + 1 > in_len )
{
MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: sid_len=%u > %u",
(unsigned) sid_len,
(unsigned) in_len - 61 ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_BUF( 4, "sid received from network",
in + 60, sid_len );
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 )
if( 59 + 1 + sid_len + 1 + cookie_len > in_len )
{
/* Valid cookie */
MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: cookie_len=%u > %u",
(unsigned) cookie_len,
(unsigned) ( in_len - sid_len - 61 ) ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_BUF( 4, "cookie received from network",
in + sid_len + 61, cookie_len );
if( ssl->conf->f_cookie_check( ssl->conf->p_cookie,
in + sid_len + 61, cookie_len,
cli_id, cli_id_len ) == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: valid" ) );
return( 0 );
}
@ -3330,8 +3378,9 @@ static int ssl_check_dtls_clihlo_cookie(
/* Generate and write actual cookie */
p = obuf + 28;
if( f_cookie_write( p_cookie,
&p, obuf + buf_len, cli_id, cli_id_len ) != 0 )
if( ssl->conf->f_cookie_write( ssl->conf->p_cookie,
&p, obuf + buf_len,
cli_id, cli_id_len ) != 0 )
{
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
@ -3370,6 +3419,7 @@ static int ssl_check_dtls_clihlo_cookie(
* includes the case of MBEDTLS_ERR_SSL_CLIENT_RECONNECT and of unexpected
* errors, and is the right thing to do in both cases).
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3385,15 +3435,13 @@ static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl )
return( 0 );
}
ret = ssl_check_dtls_clihlo_cookie(
ssl->conf->f_cookie_write,
ssl->conf->f_cookie_check,
ssl->conf->p_cookie,
ret = mbedtls_ssl_check_dtls_clihlo_cookie(
ssl,
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 );
MBEDTLS_SSL_DEBUG_RET( 2, "mbedtls_ssl_check_dtls_clihlo_cookie", ret );
if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED )
{
@ -3427,6 +3475,7 @@ static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl )
}
#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_record_type( uint8_t record_type )
{
if( record_type != MBEDTLS_SSL_MSG_HANDSHAKE &&
@ -3459,6 +3508,7 @@ static int ssl_check_record_type( uint8_t record_type )
* 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.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_record_header( mbedtls_ssl_context const *ssl,
unsigned char *buf,
size_t len,
@ -3571,7 +3621,6 @@ static int ssl_parse_record_header( mbedtls_ssl_context const *ssl,
/*
* Parse and validate record version
*/
rec->ver[0] = buf[ rec_hdr_version_offset + 0 ];
rec->ver[1] = buf[ rec_hdr_version_offset + 1 ];
mbedtls_ssl_read_version( &major_ver, &minor_ver,
@ -3580,16 +3629,19 @@ static int ssl_parse_record_header( mbedtls_ssl_context const *ssl,
if( major_ver != ssl->major_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch" ) );
MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch: got %u, expected %u",
(unsigned) major_ver,
(unsigned) ssl->major_ver ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
if( minor_ver > ssl->conf->max_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch" ) );
MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch: got %u, expected max %u",
(unsigned) minor_ver,
(unsigned) ssl->conf->max_minor_ver ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
/*
* Parse/Copy record sequence number.
*/
@ -3692,6 +3744,7 @@ static int ssl_parse_record_header( mbedtls_ssl_context const *ssl,
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_client_reconnect( mbedtls_ssl_context *ssl )
{
unsigned int rec_epoch = ( ssl->in_ctr[0] << 8 ) | ssl->in_ctr[1];
@ -3721,6 +3774,7 @@ static int ssl_check_client_reconnect( mbedtls_ssl_context *ssl )
/*
* If applicable, decrypt record content
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_prepare_record_content( mbedtls_ssl_context *ssl,
mbedtls_record *rec )
{
@ -3854,7 +3908,7 @@ static int ssl_prepare_record_content( mbedtls_ssl_context *ssl,
/* Check actual (decrypted) record content length against
* configured maximum. */
if( ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN )
if( rec->data_len > MBEDTLS_SSL_IN_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
@ -3872,8 +3926,11 @@ static int ssl_prepare_record_content( mbedtls_ssl_context *ssl,
*/
/* Helper functions for mbedtls_ssl_read_record(). */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_consume_current_message( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_get_next_record( mbedtls_ssl_context *ssl );
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl );
int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
@ -3961,6 +4018,7 @@ int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl )
{
if( ssl->in_left > ssl->next_record_offset )
@ -3969,6 +4027,7 @@ static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl )
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_load_buffered_message( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
@ -4066,6 +4125,7 @@ exit:
return( ret );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
size_t desired )
{
@ -4108,6 +4168,7 @@ static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
return( -1 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_buffer_message( mbedtls_ssl_context *ssl )
{
int ret = 0;
@ -4312,6 +4373,7 @@ exit:
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_consume_current_message( mbedtls_ssl_context *ssl )
{
/*
@ -4399,6 +4461,7 @@ static int ssl_consume_current_message( mbedtls_ssl_context *ssl )
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl )
{
if( ssl->in_msglen > 0 )
@ -4425,6 +4488,7 @@ static void ssl_free_buffered_record( mbedtls_ssl_context *ssl )
}
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_load_buffered_record( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
@ -4482,6 +4546,7 @@ exit:
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_buffer_future_record( mbedtls_ssl_context *ssl,
mbedtls_record const *rec )
{
@ -4540,6 +4605,7 @@ static int ssl_buffer_future_record( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_PROTO_DTLS */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_get_next_record( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -5290,6 +5356,7 @@ int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl )
/*
* Check record counters and renegotiate if they're above the limit.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_ctr_renegotiate( mbedtls_ssl_context *ssl )
{
size_t ep_len = mbedtls_ssl_ep_len( ssl );
@ -5640,6 +5707,7 @@ int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
* Therefore, it is possible that the input message length is 0 and the
* corresponding return code is 0 on success.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_real( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
@ -5711,6 +5779,7 @@ static int ssl_write_real( mbedtls_ssl_context *ssl,
* remember whether we already did the split or not.
*/
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_split( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{

84
library/ssl_srv.c
View File

@ -78,6 +78,7 @@ void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf,
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -147,6 +148,7 @@ static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_conf_has_psk_or_cb( mbedtls_ssl_config const *conf )
{
if( conf->f_psk != NULL )
@ -167,6 +169,7 @@ static int ssl_conf_has_psk_or_cb( mbedtls_ssl_config const *conf )
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl )
{
if( ssl->conf->f_psk != NULL )
@ -188,6 +191,7 @@ static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl )
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -239,6 +243,7 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
* This needs to be done at a later stage.
*
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -317,6 +322,7 @@ static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -383,6 +389,7 @@ static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl,
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -425,6 +432,7 @@ static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl,
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -454,6 +462,7 @@ static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -473,6 +482,7 @@ static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -545,6 +555,7 @@ static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -567,6 +578,7 @@ static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -592,6 +604,7 @@ static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -617,6 +630,7 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t len )
@ -691,6 +705,7 @@ static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_ALPN)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
@ -779,6 +794,7 @@ static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_ALPN */
#if defined(MBEDTLS_SSL_DTLS_SRTP)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@ -907,6 +923,7 @@ static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl,
* Return 0 if the given key uses one of the acceptable curves, -1 otherwise
*/
#if defined(MBEDTLS_ECDSA_C)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_key_curve( mbedtls_pk_context *pk,
const mbedtls_ecp_curve_info **curves )
{
@ -928,6 +945,7 @@ static int ssl_check_key_curve( mbedtls_pk_context *pk,
* Try picking a certificate for this ciphersuite,
* return 0 on success and -1 on failure.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_pick_cert( mbedtls_ssl_context *ssl,
const mbedtls_ssl_ciphersuite_t * ciphersuite_info )
{
@ -1032,6 +1050,7 @@ static int ssl_pick_cert( mbedtls_ssl_context *ssl,
* Check if a given ciphersuite is suitable for use with our config/keys/etc
* Sets ciphersuite_info only if the suite matches.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id,
const mbedtls_ssl_ciphersuite_t **ciphersuite_info )
{
@ -1147,6 +1166,7 @@ static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id,
}
#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl )
{
int ret, got_common_suite;
@ -1410,6 +1430,7 @@ have_ciphersuite_v2:
/* 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. */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_client_hello( mbedtls_ssl_context *ssl )
{
int ret, got_common_suite;
@ -1604,11 +1625,19 @@ read_record_header:
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] ) )
if( buf[1] != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message: %u != 0",
(unsigned) buf[1] ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/* We don't support fragmentation of ClientHello (yet?) */
if( msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + ( ( buf[2] << 8 ) | buf[3] ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message: %u != %u + %u",
(unsigned) msg_len,
(unsigned) mbedtls_ssl_hs_hdr_len( ssl ),
(unsigned) ( buf[2] << 8 ) | buf[3] ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
@ -1649,6 +1678,11 @@ read_record_header:
* For now we don't support fragmentation, so make sure
* fragment_offset == 0 and fragment_length == length
*/
MBEDTLS_SSL_DEBUG_MSG(
4, ( "fragment_offset=%u fragment_length=%u length=%u",
(unsigned) ( ssl->in_msg[6] << 16 | ssl->in_msg[7] << 8 | ssl->in_msg[8] ),
(unsigned) ( ssl->in_msg[9] << 16 | ssl->in_msg[10] << 8 | ssl->in_msg[11] ),
(unsigned) ( ssl->in_msg[1] << 16 | ssl->in_msg[2] << 8 | ssl->in_msg[3] ) ) );
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 )
{
@ -2686,6 +2720,7 @@ static void ssl_write_use_srtp_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_SSL_DTLS_SRTP */
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -2806,6 +2841,7 @@ exit:
mbedtls_ssl_session_free( &session_tmp );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_server_hello( mbedtls_ssl_context *ssl )
{
#if defined(MBEDTLS_HAVE_TIME)
@ -3036,6 +3072,7 @@ static int ssl_write_server_hello( mbedtls_ssl_context *ssl )
}
#if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
@ -3054,6 +3091,7 @@ static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
@ -3223,18 +3261,23 @@ static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_pk_context *own_key = mbedtls_ssl_own_key( ssl );
if( ! mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECKEY ) )
/* Check if the key is a transparent ECDH key.
* This also ensures that it is safe to call mbedtls_pk_ec(). */
if( mbedtls_pk_get_type( own_key ) != MBEDTLS_PK_ECKEY &&
mbedtls_pk_get_type( own_key ) != MBEDTLS_PK_ECKEY_DH )
{
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_pk_ec( *own_key ),
MBEDTLS_ECDH_OURS ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret );
@ -3248,6 +3291,7 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED) && \
defined(MBEDTLS_SSL_ASYNC_PRIVATE)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl,
size_t *signature_len )
{
@ -3275,6 +3319,7 @@ static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl,
/* Prepare the ServerKeyExchange message, up to and including
* calculating the signature if any, but excluding formatting the
* signature and sending the message. */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl,
size_t *signature_len )
{
@ -3644,6 +3689,7 @@ curve_matching_done:
* that do not include a ServerKeyExchange message, do nothing. Either
* way, if successful, move on to the next step in the SSL state
* machine. */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3665,7 +3711,12 @@ static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED)
if( mbedtls_ssl_ciphersuite_uses_ecdh( ciphersuite_info ) )
{
ssl_get_ecdh_params_from_cert( ssl );
ret = ssl_get_ecdh_params_from_cert( ssl );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret );
return( ret );
}
}
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED */
@ -3741,6 +3792,7 @@ static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
return( 0 );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -3780,6 +3832,7 @@ static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char **p,
const unsigned char *end )
{
@ -3823,6 +3876,7 @@ static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char *
defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl,
unsigned char *peer_pms,
size_t *peer_pmslen,
@ -3840,6 +3894,7 @@ static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl,
}
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
const unsigned char *p,
const unsigned char *end,
@ -3932,6 +3987,7 @@ static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
return( ret );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl,
const unsigned char *p,
const unsigned char *end,
@ -4021,6 +4077,7 @@ static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl,
MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned char **p,
const unsigned char *end )
{
@ -4081,6 +4138,7 @@ static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned cha
}
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -4248,7 +4306,10 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* Opaque PSKs are currently only supported for PSK-only. */
if( ssl_use_opaque_psk( ssl ) == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with RSA-PSK" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
#endif
if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 )
@ -4283,7 +4344,10 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* Opaque PSKs are currently only supported for PSK-only. */
if( ssl_use_opaque_psk( ssl ) == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with DHE-PSK" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
#endif
if( p != end )
@ -4320,7 +4384,10 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* Opaque PSKs are currently only supported for PSK-only. */
if( ssl_use_opaque_psk( ssl ) == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "opaque PSK not supported with ECDHE-PSK" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
#endif
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
@ -4387,6 +4454,7 @@ static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
}
#if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
@ -4405,6 +4473,7 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
@ -4598,6 +4667,7 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
#endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_new_session_ticket( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;

2
library/ssl_ticket.c
View File

@ -66,6 +66,7 @@ void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx )
/*
* Generate/update a key
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx,
unsigned char index )
{
@ -96,6 +97,7 @@ static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx,
/*
* Rotate/generate keys if necessary
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx )
{
#if !defined(MBEDTLS_HAVE_TIME)

33
library/ssl_tls.c
View File

@ -245,6 +245,7 @@ int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst,
}
#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
MBEDTLS_CHECK_RETURN_CRITICAL
static int resize_buffer( unsigned char **buffer, size_t len_new, size_t *len_old )
{
unsigned char* resized_buffer = mbedtls_calloc( 1, len_new );
@ -337,6 +338,7 @@ static void handle_buffer_resizing( mbedtls_ssl_context *ssl, int downsizing,
* Key material generation
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl3_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@ -398,6 +400,7 @@ exit:
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
MBEDTLS_CHECK_RETURN_CRITICAL
static int tls1_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@ -605,6 +608,7 @@ static psa_status_t setup_psa_key_derivation( psa_key_derivation_operation_t* de
return( PSA_SUCCESS );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_generic( mbedtls_md_type_t md_type,
const unsigned char *secret, size_t slen,
const char *label,
@ -679,6 +683,7 @@ static int tls_prf_generic( mbedtls_md_type_t md_type,
#else /* MBEDTLS_USE_PSA_CRYPTO */
MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_generic( mbedtls_md_type_t md_type,
const unsigned char *secret, size_t slen,
const char *label,
@ -770,6 +775,7 @@ exit:
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#if defined(MBEDTLS_SHA256_C)
MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_sha256( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@ -781,6 +787,7 @@ static int tls_prf_sha256( const unsigned char *secret, size_t slen,
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_sha384( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@ -825,6 +832,7 @@ static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) && \
defined(MBEDTLS_USE_PSA_CRYPTO)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl )
{
if( ssl->conf->f_psk != NULL )
@ -949,6 +957,7 @@ typedef int ssl_tls_prf_t(const unsigned char *, size_t, const char *,
* - MBEDTLS_SSL_EXPORT_KEYS: ssl->conf->{f,p}_export_keys
* - MBEDTLS_DEBUG_C: ssl->conf->{f,p}_dbg
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_populate_transform( mbedtls_ssl_transform *transform,
int ciphersuite,
const unsigned char master[48],
@ -1512,6 +1521,7 @@ end:
* Outputs:
* - the tls_prf, calc_verify and calc_finished members of handshake structure
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake,
int minor_ver,
mbedtls_md_type_t hash )
@ -1581,6 +1591,7 @@ static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake,
* EMS: passed to calc_verify (debug + (SSL3) session_negotiate)
* PSA-PSA: minor_ver, conf
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake,
unsigned char *master,
const mbedtls_ssl_context *ssl )
@ -2109,6 +2120,7 @@ int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exch
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_hello_request( mbedtls_ssl_context *ssl );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
@ -2324,6 +2336,7 @@ write_msg:
#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
unsigned char *crt_buf,
size_t crt_buf_len )
@ -2339,6 +2352,7 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
return( memcmp( peer_crt->raw.p, crt_buf, peer_crt->raw.len ) );
}
#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
unsigned char *crt_buf,
size_t crt_buf_len )
@ -2373,6 +2387,7 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
* Once the certificate message is read, parse it into a cert chain and
* perform basic checks, but leave actual verification to the caller
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
mbedtls_x509_crt *chain )
{
@ -2522,6 +2537,7 @@ static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
}
#if defined(MBEDTLS_SSL_SRV_C)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl )
{
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
@ -2571,6 +2587,7 @@ static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl )
*/
#define SSL_CERTIFICATE_EXPECTED 0
#define SSL_CERTIFICATE_SKIP 1
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl,
int authmode )
{
@ -2600,6 +2617,7 @@ static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl,
return( SSL_CERTIFICATE_EXPECTED );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
int authmode,
mbedtls_x509_crt *chain,
@ -2697,7 +2715,9 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
{
const mbedtls_pk_context *pk = &chain->pk;
/* If certificate uses an EC key, make sure the curve is OK */
/* If certificate uses an EC key, make sure the curve is OK.
* This is a public key, so it can't be opaque, so can_do() is a good
* enough check to ensure pk_ec() is safe to use here. */
if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) &&
mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 )
{
@ -2788,6 +2808,7 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
}
#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl,
unsigned char *start, size_t len )
{
@ -2819,6 +2840,7 @@ static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl,
return( ret );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_remember_peer_pubkey( mbedtls_ssl_context *ssl,
unsigned char *start, size_t len )
{
@ -3797,6 +3819,7 @@ void mbedtls_ssl_session_init( mbedtls_ssl_session *session )
memset( session, 0, sizeof(mbedtls_ssl_session) );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_handshake_init( mbedtls_ssl_context *ssl )
{
/* Clear old handshake information if present */
@ -3874,6 +3897,7 @@ static int ssl_handshake_init( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
/* Dummy cookie callbacks for defaults */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_cookie_write_dummy( void *ctx,
unsigned char **p, unsigned char *end,
const unsigned char *cli_id, size_t cli_id_len )
@ -3887,6 +3911,7 @@ static int ssl_cookie_write_dummy( void *ctx,
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
MBEDTLS_CHECK_RETURN_CRITICAL
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 )
@ -4304,6 +4329,7 @@ void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf,
}
/* Append a new keycert entry to a (possibly empty) list */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_append_key_cert( mbedtls_ssl_key_cert **head,
mbedtls_x509_crt *cert,
mbedtls_pk_context *key )
@ -4472,6 +4498,7 @@ static void ssl_conf_remove_psk( mbedtls_ssl_config *conf )
* 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. */
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_conf_set_psk_identity( mbedtls_ssl_config *conf,
unsigned char const *psk_identity,
size_t psk_identity_len )
@ -5391,6 +5418,7 @@ static unsigned char ssl_serialized_session_header[] = {
* verify_result is put before peer_cert so that all mandatory fields come
* together in one block.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_session_save( const mbedtls_ssl_session *session,
unsigned char omit_header,
unsigned char *buf,
@ -5590,6 +5618,7 @@ int mbedtls_ssl_session_save( const mbedtls_ssl_session *session,
* This internal version is wrapped by a public function that cleans up in
* case of error, and has an extra option omit_header.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_session_load( mbedtls_ssl_session *session,
unsigned char omit_header,
const unsigned char *buf,
@ -5893,6 +5922,7 @@ int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl )
/*
* Write HelloRequest to request renegotiation on server
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_hello_request( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@ -6504,6 +6534,7 @@ static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id )
* This internal version is wrapped by a public function that cleans up in
* case of error.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_context_load( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )

13
programs/ssl/ssl_client2.c
View File

@ -1420,17 +1420,6 @@ int main( int argc, char *argv[] )
#if defined (MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
if( opt.psk_opaque != 0 )
{
/* Ensure that the chosen ciphersuite is PSK-only; we must know
* the ciphersuite in advance to set the correct policy for the
* PSK key slot. This limitation might go away in the future. */
if( ciphersuite_info->key_exchange != MBEDTLS_KEY_EXCHANGE_PSK ||
opt.min_version != MBEDTLS_SSL_MINOR_VERSION_3 )
{
mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n" );
ret = 2;
goto usage;
}
/* Determine KDF algorithm the opaque PSK will be used in. */
#if defined(MBEDTLS_SHA512_C)
if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
@ -1672,7 +1661,7 @@ int main( int argc, char *argv[] )
if( opt.key_opaque != 0 )
{
if( ( ret = mbedtls_pk_wrap_as_opaque( &pkey, &key_slot,
PSA_ALG_SHA_256 ) ) != 0 )
PSA_ALG_ANY_HASH ) ) != 0 )
{
mbedtls_printf( " failed\n ! "
"mbedtls_pk_wrap_as_opaque returned -0x%x\n\n", (unsigned int) -ret );

65
programs/ssl/ssl_server2.c
View File

@ -82,6 +82,7 @@ int main( void )
#define DFL_CA_PATH ""
#define DFL_CRT_FILE ""
#define DFL_KEY_FILE ""
#define DFL_KEY_OPAQUE 0
#define DFL_KEY_PWD ""
#define DFL_CRT_FILE2 ""
#define DFL_KEY_FILE2 ""
@ -199,6 +200,13 @@ int main( void )
#else
#define USAGE_IO ""
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_X509_CRT_PARSE_C)
#define USAGE_KEY_OPAQUE \
" key_opaque=%%d Handle your private keys as if they were opaque\n" \
" default: 0 (disabled)\n"
#else
#define USAGE_KEY_OPAQUE ""
#endif
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
#define USAGE_SSL_ASYNC \
@ -481,6 +489,7 @@ int main( void )
" cert_req_ca_list=%%d default: 1 (send ca list)\n" \
" options: 1 (send ca list), 0 (don't send)\n" \
USAGE_IO \
USAGE_KEY_OPAQUE \
"\n" \
USAGE_PSK \
USAGE_CA_CALLBACK \
@ -559,6 +568,7 @@ struct options
const char *ca_path; /* the path with the CA certificate(s) reside */
const char *crt_file; /* the file with the server certificate */
const char *key_file; /* the file with the server key */
int key_opaque; /* handle private key as if it were opaque */
const char *key_pwd; /* the password for the server key */
const char *crt_file2; /* the file with the 2nd server certificate */
const char *key_file2; /* the file with the 2nd server key */
@ -1310,6 +1320,10 @@ int main( int argc, char *argv[] )
mbedtls_pk_context pkey;
mbedtls_x509_crt srvcert2;
mbedtls_pk_context pkey2;
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_key_id_t key_slot = 0; /* invalid key slot */
psa_key_id_t key_slot2 = 0; /* invalid key slot */
#endif
int key_cert_init = 0, key_cert_init2 = 0;
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
ssl_async_key_context_t ssl_async_keys;
@ -1480,6 +1494,7 @@ int main( int argc, char *argv[] )
opt.ca_path = DFL_CA_PATH;
opt.crt_file = DFL_CRT_FILE;
opt.key_file = DFL_KEY_FILE;
opt.key_opaque = DFL_KEY_OPAQUE;
opt.key_pwd = DFL_KEY_PWD;
opt.crt_file2 = DFL_CRT_FILE2;
opt.key_file2 = DFL_KEY_FILE2;
@ -1611,6 +1626,10 @@ int main( int argc, char *argv[] )
opt.key_file = q;
else if( strcmp( p, "key_pwd" ) == 0 )
opt.key_pwd = q;
#if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_X509_CRT_PARSE_C)
else if( strcmp( p, "key_opaque" ) == 0 )
opt.key_opaque = atoi( q );
#endif
else if( strcmp( p, "crt_file2" ) == 0 )
opt.crt_file2 = q;
else if( strcmp( p, "key_file2" ) == 0 )
@ -2143,17 +2162,6 @@ int main( int argc, char *argv[] )
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
if( opt.psk_opaque != 0 || opt.psk_list_opaque != 0 )
{
/* Ensure that the chosen ciphersuite is PSK-only; we must know
* the ciphersuite in advance to set the correct policy for the
* PSK key slot. This limitation might go away in the future. */
if( ciphersuite_info->key_exchange != MBEDTLS_KEY_EXCHANGE_PSK ||
opt.min_version != MBEDTLS_SSL_MINOR_VERSION_3 )
{
mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n" );
ret = 2;
goto usage;
}
/* Determine KDF algorithm the opaque PSK will be used in. */
#if defined(MBEDTLS_SHA512_C)
if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
@ -2503,10 +2511,37 @@ int main( int argc, char *argv[] )
}
key_cert_init2 = 2;
#endif /* MBEDTLS_ECDSA_C */
#endif /* MBEDTLS_CERTS_C */
}
mbedtls_printf( " ok\n" );
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if( opt.key_opaque != 0 )
{
if ( mbedtls_pk_get_type( &pkey ) == MBEDTLS_PK_ECKEY )
{
if( ( ret = mbedtls_pk_wrap_as_opaque( &pkey, &key_slot,
PSA_ALG_ANY_HASH ) ) != 0 )
{
mbedtls_printf( " failed\n ! "
"mbedtls_pk_wrap_as_opaque returned -0x%x\n\n", (unsigned int) -ret );
goto exit;
}
}
if ( mbedtls_pk_get_type( &pkey2 ) == MBEDTLS_PK_ECKEY )
{
if( ( ret = mbedtls_pk_wrap_as_opaque( &pkey2, &key_slot2,
PSA_ALG_ANY_HASH ) ) != 0 )
{
mbedtls_printf( " failed\n ! "
"mbedtls_pk_wrap_as_opaque returned -0x%x\n\n", (unsigned int) -ret );
goto exit;
}
}
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#endif /* MBEDTLS_CERTS_C */
mbedtls_printf( " ok (key types: %s - %s)\n", mbedtls_pk_get_name( &pkey ), mbedtls_pk_get_name( &pkey2 ) );
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)
@ -4001,6 +4036,10 @@ exit:
mbedtls_pk_free( &pkey );
mbedtls_x509_crt_free( &srvcert2 );
mbedtls_pk_free( &pkey2 );
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_destroy_key( key_slot );
psa_destroy_key( key_slot2 );
#endif
#endif
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)

137
tests/ssl-opt.sh
View File

@ -1623,15 +1623,150 @@ requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test "Opaque key for client authentication" \
"$P_SRV auth_mode=required" \
"$P_SRV auth_mode=required crt_file=data_files/server5.crt \
key_file=data_files/server5.key" \
"$P_CLI key_opaque=1 crt_file=data_files/server5.crt \
key_file=data_files/server5.key" \
0 \
-c "key type: Opaque" \
-c "Ciphersuite is TLS-ECDHE-ECDSA" \
-s "Verifying peer X.509 certificate... ok" \
-s "Ciphersuite is TLS-ECDHE-ECDSA" \
-S "error" \
-C "error"
# Test using an opaque private key for server authentication
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test "Opaque key for server authentication" \
"$P_SRV auth_mode=required key_opaque=1 crt_file=data_files/server5.crt \
key_file=data_files/server5.key" \
"$P_CLI crt_file=data_files/server5.crt \
key_file=data_files/server5.key" \
0 \
-c "Verifying peer X.509 certificate... ok" \
-c "Ciphersuite is TLS-ECDHE-ECDSA" \
-s "key types: Opaque - invalid PK" \
-s "Ciphersuite is TLS-ECDHE-ECDSA" \
-S "error" \
-C "error"
# Test using an opaque private key for client/server authentication
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test "Opaque key for client/server authentication" \
"$P_SRV auth_mode=required key_opaque=1 crt_file=data_files/server5.crt \
key_file=data_files/server5.key" \
"$P_CLI key_opaque=1 crt_file=data_files/server5.crt \
key_file=data_files/server5.key" \
0 \
-c "key type: Opaque" \
-c "Verifying peer X.509 certificate... ok" \
-c "Ciphersuite is TLS-ECDHE-ECDSA" \
-s "key types: Opaque - invalid PK" \
-s "Verifying peer X.509 certificate... ok" \
-s "Ciphersuite is TLS-ECDHE-ECDSA" \
-S "error" \
-C "error"
# Opaque keys not supported for static ECDH
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
run_test "Opaque key: server: ECDH-ECDSA not supported" \
"$P_SRV debug_level=1 key_opaque=1
crt_file=data_files/server5.crt key_file=data_files/server5.key" \
"$P_CLI force_ciphersuite=TLS-ECDH-ECDSA-WITH-AES-128-GCM-SHA256" \
1 \
-s "server key not ECDH capable" \
-s "ssl_get_ecdh_params_from_cert() returned" \
-s "error" \
-c "error"
# Opaque keys not supported for static ECDH
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
run_test "Opaque key: server: ECDH-RSA not supported" \
"$P_SRV debug_level=1 key_opaque=1
crt_file=data_files/server5.crt key_file=data_files/server5.key" \
"$P_CLI force_ciphersuite=TLS-ECDH-RSA-WITH-AES-128-GCM-SHA256" \
1 \
-s "server key not ECDH capable" \
-s "ssl_get_ecdh_params_from_cert() returned" \
-s "error" \
-c "error"
# Opaque PSKs not supported for mixed PSK
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
run_test "Opaque psk: client: ECDHE-PSK not supported" \
"$P_SRV debug_level=1 psk=abc123 psk_identity=foo" \
"$P_CLI debug_level=1 psk=abc123 psk_identity=foo psk_opaque=1 \
force_version=tls12 \
force_ciphersuite=TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA" \
1 \
-c "opaque PSK not supported with ECDHE-PSK" \
-s "error" \
-c "error"
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
run_test "Opaque psk: client: DHE-PSK not supported" \
"$P_SRV debug_level=1 psk=abc123 psk_identity=foo" \
"$P_CLI debug_level=1 psk=abc123 psk_identity=foo psk_opaque=1 \
force_version=tls12 \
force_ciphersuite=TLS-DHE-PSK-WITH-AES-128-CBC-SHA" \
1 \
-c "opaque PSK not supported with DHE-PSK" \
-s "error" \
-c "error"
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
run_test "Opaque psk: client: RSA-PSK not supported" \
"$P_SRV debug_level=1 psk=abc123 psk_identity=foo" \
"$P_CLI debug_level=1 psk=abc123 psk_identity=foo psk_opaque=1 \
force_version=tls12 \
force_ciphersuite=TLS-RSA-PSK-WITH-AES-128-CBC-SHA" \
1 \
-c "opaque PSK not supported with RSA-PSK" \
-s "error" \
-c "error"
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
run_test "Opaque psk: server: ECDHE-PSK not supported" \
"$P_SRV debug_level=1 psk=abc123 psk_identity=foo psk_opaque=1 \
force_version=tls12 \
force_ciphersuite=TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA" \
"$P_CLI debug_level=1 psk=abc123 psk_identity=foo" \
1 \
-s "opaque PSK not supported with ECDHE-PSK" \
-s "error" \
-c "error"
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
run_test "Opaque psk: server: DHE-PSK not supported" \
"$P_SRV debug_level=1 psk=abc123 psk_identity=foo psk_opaque=1 \
force_version=tls12 \
force_ciphersuite=TLS-DHE-PSK-WITH-AES-128-CBC-SHA" \
"$P_CLI debug_level=1 psk=abc123 psk_identity=foo" \
1 \
-s "opaque PSK not supported with DHE-PSK" \
-s "error" \
-c "error"
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
run_test "Opaque psk: server: RSA-PSK not supported" \
"$P_SRV debug_level=1 psk=abc123 psk_identity=foo psk_opaque=1 \
force_version=tls12 \
force_ciphersuite=TLS-RSA-PSK-WITH-AES-128-CBC-SHA" \
"$P_CLI debug_level=1 psk=abc123 psk_identity=foo" \
1 \
-s "opaque PSK not supported with RSA-PSK" \
-s "error" \
-c "error"
# Test ciphersuites which we expect to be fully supported by PSA Crypto
# and check that we don't fall back to Mbed TLS' internal crypto primitives.
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-128-CCM

12
tests/suites/test_suite_mpi.data
View File

@ -73,12 +73,18 @@ mpi_read_write_string:16:"":16:"":4:0:0
Test mpi_read_write_string #9 (Empty MPI hex -> dec)
mpi_read_write_string:16:"":10:"0":4:0:0
Test mpi_read_write_string #9 (Empty MPI hex -> base 2)
mpi_read_write_string:16:"":2:"0":4:0:0
Test mpi_read_write_string #8 (Empty MPI dec -> hex)
mpi_read_write_string:10:"":16:"":4:0:0
Test mpi_read_write_string #9 (Empty MPI dec -> dec)
mpi_read_write_string:10:"":10:"0":4:0:0
Test mpi_read_write_string #9 (Empty MPI dec -> base 2)
mpi_read_write_string:16:"":2:"0":4:0:0
Test mpi_write_string #10 (Negative hex with odd number of digits)
mpi_read_write_string:16:"-1":16:"":3:0:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
@ -1222,9 +1228,15 @@ mbedtls_mpi_mod_int:10:"1000":2:0:0
Test mbedtls_mpi_mod_int: 0 (null) % 1
mbedtls_mpi_mod_int:16:"":1:0:0
Test mbedtls_mpi_mod_int: 0 (null) % 2
mbedtls_mpi_mod_int:16:"":2:0:0
Test mbedtls_mpi_mod_int: 0 (null) % -1
mbedtls_mpi_mod_int:16:"":-1:0:MBEDTLS_ERR_MPI_NEGATIVE_VALUE
Test mbedtls_mpi_mod_int: 0 (null) % -2
mbedtls_mpi_mod_int:16:"":-2:0:MBEDTLS_ERR_MPI_NEGATIVE_VALUE
Base test mbedtls_mpi_exp_mod #1
mbedtls_mpi_exp_mod:10:"23":10:"13":10:"29":10:"24":0

18
tests/suites/test_suite_ssl.data
View File

@ -10689,3 +10689,21 @@ raw_key_agreement_fail:0
Raw key agreement: bad server key
raw_key_agreement_fail:1
Cookie parsing: nominal run
cookie_parsing:"16fefd0000000000000000002F010000de000000000000011efefd7b7272727272727272727272727272727272727272727272727272727272727d00200000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_SSL_INTERNAL_ERROR
Cookie parsing: cookie_len overflow
cookie_parsing:"16fefd000000000000000000ea010000de000000000000011efefd7b7272727272727272727272727272727272727272727272727272727272727db97b7373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737db963":MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO
Cookie parsing: non-zero fragment offset
cookie_parsing:"16fefd00000000000000000032010000de000072000000011efefd7b7272727272727272727272727272727272727272727272727272727272727d01730143":MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO
Cookie parsing: sid_len overflow
cookie_parsing:"16fefd00000000000000000032010000de000000000000011efefd7b7272727272727272727272727272727272727272727272727272727272727dFF730143":MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO
Cookie parsing: record too short
cookie_parsing:"16fefd0000000000000000002f010000de000000000000011efefd7b7272727272727272727272727272727272727272727272727272727272727dFF":MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO
Cookie parsing: one byte overread
cookie_parsing:"16fefd0000000000000000002F010000de000000000000011efefd7b7272727272727272727272727272727272727272727272727272727272727d0001":MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO

28
tests/suites/test_suite_ssl.function
View File

@ -4624,3 +4624,31 @@ exit:
USE_PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SSL_SRV_C:MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE:MBEDTLS_TEST_HOOKS */
void cookie_parsing( data_t *cookie, int exp_ret )
{
mbedtls_ssl_context ssl;
mbedtls_ssl_config conf;
size_t len;
mbedtls_ssl_init( &ssl );
mbedtls_ssl_config_init( &conf );
TEST_EQUAL( mbedtls_ssl_config_defaults( &conf, MBEDTLS_SSL_IS_SERVER,
MBEDTLS_SSL_TRANSPORT_DATAGRAM,
MBEDTLS_SSL_PRESET_DEFAULT ),
0 );
TEST_EQUAL( mbedtls_ssl_setup( &ssl, &conf ), 0 );
TEST_EQUAL( mbedtls_ssl_check_dtls_clihlo_cookie( &ssl, ssl.cli_id,
ssl.cli_id_len,
cookie->x, cookie->len,
ssl.out_buf,
MBEDTLS_SSL_OUT_CONTENT_LEN,
&len ),
exp_ret );
mbedtls_ssl_free( &ssl );
mbedtls_ssl_config_free( &conf );
}
/* END_CASE */