81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2014 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "ssl.h"
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#include <cassert>
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#include <vector>
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#include <mutex>
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#include <iostream>
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#include <openssl/crypto.h>
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namespace nghttp2 {
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namespace ssl {
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// Recommended general purpose "Non-Backward Compatible" cipher by
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// mozilla.
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//
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// https://wiki.mozilla.org/Security/Server_Side_TLS
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const char* const DEFAULT_CIPHER_LIST = "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK";
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namespace {
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std::vector<std::mutex> ssl_global_locks;
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} // namespace
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namespace {
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void ssl_locking_cb(int mode, int type, const char *file, int line)
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{
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if(mode & CRYPTO_LOCK) {
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ssl_global_locks[type].lock();
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} else {
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ssl_global_locks[type].unlock();
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}
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}
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} // namespace
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LibsslGlobalLock::LibsslGlobalLock()
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{
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if(!ssl_global_locks.empty()) {
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std::cerr << "OpenSSL global lock has been already set" << std::endl;
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assert(0);
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}
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ssl_global_locks = std::vector<std::mutex>(CRYPTO_num_locks());
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// CRYPTO_set_id_callback(ssl_thread_id); OpenSSL manual says that
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// if threadid_func is not specified using
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// CRYPTO_THREADID_set_callback(), then default implementation is
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// used. We use this default one.
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CRYPTO_set_locking_callback(ssl_locking_cb);
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}
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LibsslGlobalLock::~LibsslGlobalLock()
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{
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ssl_global_locks.clear();
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}
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} // namespace ssl
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} // namespace nghttp2
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