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/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by the
* Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* 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 Affero General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "OpenSSLCrypto.h"
#include <openssl/crypto.h> // NOTE: this import is NEEDED (even though some IDEs report it as unused)
#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1010000fL
#include <vector>
#include <thread>
#include <mutex>
std::vector<std::mutex*> cryptoLocks;
static void lockingCallback(int mode, int type, char const* /*file*/, int /*line*/)
{
if (mode & CRYPTO_LOCK)
cryptoLocks[type]->lock();
else
cryptoLocks[type]->unlock();
}
static void threadIdCallback(CRYPTO_THREADID * id)
{
(void)id;
CRYPTO_THREADID_set_numeric(id, std::hash<std::thread::id>()(std::this_thread::get_id()));
}
#elif OPENSSL_VERSION_NUMBER >= 0x30000000L
#include <openssl/provider.h>
OSSL_PROVIDER* LegacyProvider;
OSSL_PROVIDER* DefaultProvider;
#endif
#if OPENSSL_VERSION_NUMBER >= 0x30000000L && AC_PLATFORM == AC_PLATFORM_WINDOWS
#include <boost/dll/runtime_symbol_info.hpp>
#include <filesystem>
void SetupLibrariesForWindows()
{
namespace fs = std::filesystem;
fs::path programLocation{ boost::dll::program_location().remove_filename().string() };
fs::path libLegacy{ boost::dll::program_location().remove_filename().string() + "/legacy.dll" };
ASSERT(fs::exists(libLegacy), "Not found 'legacy.dll'. Please copy library 'legacy.dll' from OpenSSL default dir to '{}'", programLocation.generic_string());
OSSL_PROVIDER_set_default_search_path(nullptr, programLocation.generic_string().c_str());
}
#endif
void OpenSSLCrypto::threadsSetup()
{
#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1010000fL
cryptoLocks.resize(CRYPTO_num_locks());
for (int i = 0 ; i < CRYPTO_num_locks(); ++i)
{
cryptoLocks[i] = new std::mutex();
}
(void)&threadIdCallback;
CRYPTO_THREADID_set_callback(threadIdCallback);
(void)&lockingCallback;
CRYPTO_set_locking_callback(lockingCallback);
#elif OPENSSL_VERSION_NUMBER >= 0x30000000L
#if AC_PLATFORM == AC_PLATFORM_WINDOWS
SetupLibrariesForWindows();
#endif
LegacyProvider = OSSL_PROVIDER_load(nullptr, "legacy");
DefaultProvider = OSSL_PROVIDER_load(nullptr, "default");
#endif
}
void OpenSSLCrypto::threadsCleanup()
{
#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1010000fL
CRYPTO_set_locking_callback(nullptr);
CRYPTO_THREADID_set_callback(nullptr);
for (int i = 0 ; i < CRYPTO_num_locks(); ++i)
{
delete cryptoLocks[i];
}
cryptoLocks.resize(0);
#elif OPENSSL_VERSION_NUMBER >= 0x30000000L
OSSL_PROVIDER_unload(LegacyProvider);
OSSL_PROVIDER_unload(DefaultProvider);
OSSL_PROVIDER_set_default_search_path(nullptr, nullptr);
#endif
}
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