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