Files
asterisk/main/ssl.c
Kevin P. Fleming f83d1b98e8 Add support-level indications to many more source files.
Since we now have tools that scan through the source tree looking for files
with specific support levels, we need to ensure that every file that is
a component of a 'core' or 'extended' module (or the main Asterisk binary)
is explicitly marked with its support level. This patch adds support-level
indications to many more source files in tree, but avoids adding them to
third-party libraries that are included in the tree and to source files
that don't end up involved in Asterisk itself.



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@369001 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2012-06-15 15:56:08 +00:00

105 lines
2.1 KiB
C

/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2009, Digium, Inc.
*
* Russell Bryant <russell@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*!
* \file
* \brief Common OpenSSL support code
*
* \author Russell Bryant <russell@digium.com>
*/
/*** MODULEINFO
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#ifdef HAVE_OPENSSL
#include <openssl/ssl.h>
#include <openssl/err.h>
#endif
#include "asterisk/_private.h" /* ast_ssl_init() */
#include "asterisk/utils.h"
#include "asterisk/lock.h"
#ifdef HAVE_OPENSSL
static ast_mutex_t *ssl_locks;
static int ssl_num_locks;
static unsigned long ssl_threadid(void)
{
return (unsigned long)pthread_self();
}
static void ssl_lock(int mode, int n, const char *file, int line)
{
if (n < 0 || n >= ssl_num_locks) {
ast_log(LOG_ERROR, "OpenSSL is full of LIES!!! - "
"ssl_num_locks '%d' - n '%d'\n",
ssl_num_locks, n);
return;
}
if (mode & CRYPTO_LOCK) {
ast_mutex_lock(&ssl_locks[n]);
} else {
ast_mutex_unlock(&ssl_locks[n]);
}
}
#endif /* HAVE_OPENSSL */
/*!
* \internal
* \brief Common OpenSSL initialization for all of Asterisk.
*/
int ast_ssl_init(void)
{
#ifdef HAVE_OPENSSL
unsigned int i;
SSL_library_init();
SSL_load_error_strings();
ERR_load_crypto_strings();
ERR_load_BIO_strings();
OpenSSL_add_all_algorithms();
/* Make OpenSSL thread-safe. */
CRYPTO_set_id_callback(ssl_threadid);
ssl_num_locks = CRYPTO_num_locks();
if (!(ssl_locks = ast_calloc(ssl_num_locks, sizeof(ssl_locks[0])))) {
return -1;
}
for (i = 0; i < ssl_num_locks; i++) {
ast_mutex_init(&ssl_locks[i]);
}
CRYPTO_set_locking_callback(ssl_lock);
#endif /* HAVE_OPENSSL */
return 0;
}