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openvpn/syshead.h
Alon Bar-Lev aab2f95439 Windows cross-compile cleanup 
It should be sufficient to just try to see if socklen_t is defined.
Next, on all platforms it would be int in all other platforms.
And, there is no need to check for the type in monolitic environment
like Windows, as it will be always the same.

Currently it fails cross compile windows in mingw-w64 compiler, as
winsock.h is as follows:
   """
     /* define WINSOCK_API_LINKAGE and WSAAPI for less
      * diff output between winsock.h and winsock2.h, but
      * remember to undefine them at the end of file */
   """
And the macro uses these macros which are internal winsock macros and
should not be used anyway.

Also, when did the autodefs.h went mandatory? Why is it in
tap-win32/common.h while no constant is actually used?

The use of WSA_IO_INCOMPLETE without including winsock2.h is invalid!
Look at http://msdn.microsoft.com/en-us/library/aa921087.aspx

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Acked-by: James Yonan <james@openvpn.net>
Signed-off-by: David Sommerseth <davids@redhat.com>
2011-03-24 21:58:25 +01:00

657 lines
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/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SYSHEAD_H
#define SYSHEAD_H
/*
* Only include if not during configure
*/
#ifndef PACKAGE_NAME
#include "config.h"
#endif
/* branch prediction hints */
#if defined(__GNUC__)
# define likely(x) __builtin_expect((x),1)
# define unlikely(x) __builtin_expect((x),0)
#else
# define likely(x) (x)
# define unlikely(x) (x)
#endif
#if defined(_WIN32) && !defined(WIN32)
#define WIN32
#endif
#ifdef WIN32
#include <windows.h>
#include <winsock2.h>
#define sleep(x) Sleep((x)*1000)
#define random rand
#define srandom srand
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#ifndef WIN32
#ifndef WEXITSTATUS
# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
#endif
#ifndef WIFEXITED
# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
#endif
#endif
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#ifdef HAVE_SYS_SOCKET_H
# if defined(TARGET_LINUX) && !defined(_GNU_SOURCE)
/* needed for peercred support on glibc-2.8 */
# define _GNU_SOURCE
# endif
#include <sys/socket.h>
#endif
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_STDIO_H
#include <stdio.h>
#endif
#ifdef HAVE_CTYPE_H
#include <ctype.h>
#endif
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_ERR_H
#include <err.h>
#endif
#ifdef HAVE_SYSLOG_H
#include <syslog.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
#ifdef USE_LIBDL
#include <dlfcn.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_RESOLV_H
#include <resolv.h>
#endif
#ifdef HAVE_SYS_POLL_H
#include <sys/poll.h>
#endif
#ifdef HAVE_SYS_EPOLL_H
#include <sys/epoll.h>
#endif
#ifdef HAVE_SETCON
#include <selinux/selinux.h>
#endif
#ifdef TARGET_SOLARIS
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#else
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef TARGET_LINUX
#if defined(HAVE_NETINET_IF_ETHER_H)
#include <netinet/if_ether.h>
#endif
#ifdef HAVE_LINUX_IF_TUN_H
#include <linux/if_tun.h>
#endif
#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#ifdef HAVE_LINUX_SOCKIOS_H
#include <linux/sockios.h>
#endif
#ifdef HAVE_LINUX_TYPES_H
#include <linux/types.h>
#endif
#ifdef HAVE_LINUX_ERRQUEUE_H
#include <linux/errqueue.h>
#endif
#ifdef HAVE_NETINET_TCP_H
#include <netinet/tcp.h>
#endif
#endif /* TARGET_LINUX */
#ifdef TARGET_SOLARIS
#ifdef HAVE_STROPTS_H
#include <stropts.h>
#undef S_ERROR
#endif
#ifdef HAVE_NET_IF_TUN_H
#include <net/if_tun.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
#include <sys/sockio.h>
#endif
#ifdef HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#endif
#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#ifdef HAVE_NETINET_TCP_H
#include <netinet/tcp.h>
#endif
#endif /* TARGET_SOLARIS */
#ifdef TARGET_OPENBSD
#ifdef HAVE_SYS_UIO_H
#include <sys/uio.h>
#endif
#ifdef HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#endif
#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#ifdef HAVE_NET_IF_TUN_H
#include <net/if_tun.h>
#endif
#endif /* TARGET_OPENBSD */
#ifdef TARGET_FREEBSD
#ifdef HAVE_SYS_UIO_H
#include <sys/uio.h>
#endif
#ifdef HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#endif
#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#ifdef HAVE_NET_IF_TUN_H
#include <net/if_tun.h>
#endif
#endif /* TARGET_FREEBSD */
#ifdef TARGET_NETBSD
#ifdef HAVE_NET_IF_TUN_H
#include <net/if_tun.h>
#endif
#ifdef HAVE_NETINET_TCP_H
#include <netinet/tcp.h>
#endif
#endif /* TARGET_NETBSD */
#ifdef TARGET_DRAGONFLY
#ifdef HAVE_SYS_UIO_H
#include <sys/uio.h>
#endif
#ifdef HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#endif
#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#ifdef HAVE_NET_TUN_IF_TUN_H
#include <net/tun/if_tun.h>
#endif
#endif /* TARGET_DRAGONFLY */
#ifdef WIN32
#include <iphlpapi.h>
#include <wininet.h>
#endif
#ifdef HAVE_SYS_MMAN_H
#ifdef TARGET_DARWIN
#define _P1003_1B_VISIBLE
#endif /* TARGET_DARWIN */
#include <sys/mman.h>
#endif
/*
* Pedantic mode is meant to accomplish lint-style program checking,
* not to build a working executable.
*/
#ifdef __STRICT_ANSI__
# define PEDANTIC 1
# undef HAVE_CPP_VARARG_MACRO_GCC
# undef HAVE_CPP_VARARG_MACRO_ISO
# undef EMPTY_ARRAY_SIZE
# define EMPTY_ARRAY_SIZE 1
# undef inline
# define inline
#else
# define PEDANTIC 0
#endif
/*
* Do we have the capability to support the --passtos option?
*/
#if defined(IPPROTO_IP) && defined(IP_TOS) && defined(HAVE_SETSOCKOPT)
#define PASSTOS_CAPABILITY 1
#else
#define PASSTOS_CAPABILITY 0
#endif
/*
* Do we have the capability to report extended socket errors?
*/
#if defined(HAVE_LINUX_TYPES_H) && defined(HAVE_LINUX_ERRQUEUE_H) && defined(HAVE_SOCK_EXTENDED_ERR) && defined(HAVE_MSGHDR) && defined(HAVE_CMSGHDR) && defined(CMSG_FIRSTHDR) && defined(CMSG_NXTHDR) && defined(IP_RECVERR) && defined(MSG_ERRQUEUE) && defined(SOL_IP) && defined(HAVE_IOVEC)
#define EXTENDED_SOCKET_ERROR_CAPABILITY 1
#else
#define EXTENDED_SOCKET_ERROR_CAPABILITY 0
#endif
/*
* Does this platform support linux-style IP_PKTINFO?
*/
#if defined(ENABLE_MULTIHOME) && defined(HAVE_IN_PKTINFO) && defined(IP_PKTINFO) && defined(HAVE_MSGHDR) && defined(HAVE_CMSGHDR) && defined(HAVE_IOVEC) && defined(CMSG_FIRSTHDR) && defined(CMSG_NXTHDR) && defined(HAVE_RECVMSG) && defined(HAVE_SENDMSG)
#define ENABLE_IP_PKTINFO 1
#else
#define ENABLE_IP_PKTINFO 0
#endif
/*
* Disable ESEC
*/
#if 0
#undef EXTENDED_SOCKET_ERROR_CAPABILITY
#define EXTENDED_SOCKET_ERROR_CAPABILITY 0
#endif
/*
* Do we have a syslog capability?
*/
#if defined(HAVE_OPENLOG) && defined(HAVE_SYSLOG)
#define SYSLOG_CAPABILITY 1
#else
#define SYSLOG_CAPABILITY 0
#endif
/*
* Does this OS draw a distinction between binary and ascii files?
*/
#ifndef O_BINARY
#define O_BINARY 0
#endif
/*
* Directory separation char
*/
#ifdef WIN32
#define OS_SPECIFIC_DIRSEP '\\'
#else
#define OS_SPECIFIC_DIRSEP '/'
#endif
/*
* Define a boolean value based
* on Win32 status.
*/
#ifdef WIN32
#define WIN32_0_1 1
#else
#define WIN32_0_1 0
#endif
/*
* Our socket descriptor type.
*/
#ifdef WIN32
#define SOCKET_UNDEFINED (INVALID_SOCKET)
typedef SOCKET socket_descriptor_t;
#else
#define SOCKET_UNDEFINED (-1)
typedef int socket_descriptor_t;
#endif
static inline int
socket_defined (const socket_descriptor_t sd)
{
return sd != SOCKET_UNDEFINED;
}
/*
* Should statistics counters be 64 bits?
*/
#define USE_64_BIT_COUNTERS
/*
* Should we enable the use of execve() for calling subprocesses,
* instead of system()?
*/
#if defined(HAVE_EXECVE) && defined(HAVE_FORK)
#define ENABLE_EXECVE
#endif
/*
* Do we have point-to-multipoint capability?
*/
#if defined(ENABLE_CLIENT_SERVER) && defined(USE_CRYPTO) && defined(USE_SSL) && defined(HAVE_GETTIMEOFDAY)
#define P2MP 1
#else
#define P2MP 0
#endif
#if P2MP && !defined(ENABLE_CLIENT_ONLY)
#define P2MP_SERVER 1
#else
#define P2MP_SERVER 0
#endif
/*
* HTTPS port sharing capability
*/
#if defined(ENABLE_PORT_SHARE) && P2MP_SERVER && defined(SCM_RIGHTS) && defined(HAVE_MSGHDR) && defined(HAVE_CMSGHDR) && defined(HAVE_IOVEC) && defined(CMSG_FIRSTHDR) && defined(CMSG_NXTHDR) && defined(HAVE_RECVMSG) && defined(HAVE_SENDMSG)
#define PORT_SHARE 1
#else
#define PORT_SHARE 0
#endif
/*
* Do we have a plug-in capability?
*/
#if defined(USE_LIBDL) || defined(USE_LOAD_LIBRARY)
#define ENABLE_PLUGIN
#endif
/*
* Enable deferred authentication?
*/
#if defined(CONFIGURE_DEF_AUTH) && P2MP_SERVER && defined(ENABLE_PLUGIN)
#define PLUGIN_DEF_AUTH
#endif
#if defined(CONFIGURE_DEF_AUTH) && P2MP_SERVER && defined(ENABLE_MANAGEMENT)
#define MANAGEMENT_DEF_AUTH
#endif
#if defined(PLUGIN_DEF_AUTH) || defined(MANAGEMENT_DEF_AUTH)
#define ENABLE_DEF_AUTH
#endif
/*
* Enable packet filter?
*/
#if defined(CONFIGURE_PF) && P2MP_SERVER && defined(ENABLE_PLUGIN) && defined(HAVE_STAT)
#define PLUGIN_PF
#endif
#if defined(CONFIGURE_PF) && P2MP_SERVER && defined(MANAGEMENT_DEF_AUTH)
#define MANAGEMENT_PF
#endif
#if defined(PLUGIN_PF) || defined(MANAGEMENT_PF)
#define ENABLE_PF
#endif
/*
* Do we support Unix domain sockets?
*/
#if defined(PF_UNIX) && !defined(WIN32)
#define UNIX_SOCK_SUPPORT 1
#else
#define UNIX_SOCK_SUPPORT 0
#endif
/*
* Compile the struct buffer_list code
*/
#define ENABLE_BUFFER_LIST
/*
* Should we include OCC (options consistency check) code?
*/
#ifndef ENABLE_SMALL
#define ENABLE_OCC
#endif
/*
* Should we include NTLM proxy functionality
*/
#if defined(USE_CRYPTO) && defined(ENABLE_HTTP_PROXY)
#define NTLM 1
#else
#define NTLM 0
#endif
/*
* Should we include proxy digest auth functionality
*/
#if defined(USE_CRYPTO) && defined(ENABLE_HTTP_PROXY)
#define PROXY_DIGEST_AUTH 1
#else
#define PROXY_DIGEST_AUTH 0
#endif
/*
* Should we include code common to all proxy methods?
*/
#if defined(ENABLE_HTTP_PROXY) || defined(ENABLE_SOCKS)
#define GENERAL_PROXY_SUPPORT
#endif
/*
* Do we have PKCS11 capability?
*/
#if defined(USE_PKCS11) && defined(USE_CRYPTO) && defined(USE_SSL)
#define ENABLE_PKCS11
#endif
/*
* Is poll available on this platform?
*/
#if defined(HAVE_POLL) && defined(HAVE_SYS_POLL_H)
#define POLL 1
#else
#define POLL 0
#endif
/*
* Is epoll available on this platform?
*/
#if defined(HAVE_EPOLL_CREATE) && defined(HAVE_SYS_EPOLL_H)
#define EPOLL 1
#else
#define EPOLL 0
#endif
/* Disable EPOLL */
#if 0
#undef EPOLL
#define EPOLL 0
#endif
/*
* Should we allow ca/cert/key files to be
* included inline, in the configuration file?
*/
#define ENABLE_INLINE_FILES 1
/*
* Support "connection" directive
*/
#if ENABLE_INLINE_FILES
#define ENABLE_CONNECTION 1
#endif
/*
* Should we include http proxy fallback functionality
*/
#if defined(ENABLE_CONNECTION) && defined(ENABLE_MANAGEMENT) && defined(ENABLE_HTTP_PROXY)
#define HTTP_PROXY_FALLBACK 1
#else
#define HTTP_PROXY_FALLBACK 0
#endif
/*
* Reduce sensitivity to system clock instability
* and backtracks.
*/
#define TIME_BACKTRACK_PROTECTION 1
/*
* Is non-blocking connect() supported?
*/
#if defined(HAVE_GETSOCKOPT) && defined(SOL_SOCKET) && defined(SO_ERROR) && defined(EINPROGRESS) && defined(ETIMEDOUT)
#define CONNECT_NONBLOCK
#endif
/*
* Do we have the capability to support the AUTO_USERID feature?
*/
#if defined(ENABLE_AUTO_USERID)
#define AUTO_USERID 1
#else
#define AUTO_USERID 0
#endif
/*
* Do we support challenge/response authentication, as a console-based client?
*/
#define ENABLE_CLIENT_CR
/*
* Do we support pushing peer info?
*/
#define ENABLE_PUSH_PEER_INFO
#endif
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