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/*
* This file is part of the TrinityCore 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 General Public License as published by the
* Free Software Foundation; either version 2 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 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>
#include <openssl/provider.h>
#include <cstdlib>
OSSL_PROVIDER* LegacyProvider;
void OpenSSLCrypto::threadsSetup([[maybe_unused]] boost::filesystem::path const& providerModulePath)
{
#ifdef VALGRIND
ValgrindRandomSetup();
#endif
#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
if (!std::getenv("OPENSSL_MODULES"))
OSSL_PROVIDER_set_default_search_path(nullptr, providerModulePath.string().c_str());
#endif
LegacyProvider = OSSL_PROVIDER_try_load(nullptr, "legacy", 1);
}
void OpenSSLCrypto::threadsCleanup()
{
OSSL_PROVIDER_unload(LegacyProvider);
OSSL_PROVIDER_set_default_search_path(nullptr, nullptr);
}
#ifdef VALGRIND
#include <openssl/rand.h>
RAND_METHOD const* default_rand;
static int Valgrind_RAND_seed(const void* buf, int num)
{
VALGRIND_DISCARD(VALGRIND_MAKE_MEM_DEFINED(buf, num));
return default_rand->seed(buf, num);
}
static int Valgrind_RAND_bytes(unsigned char* buf, int num)
{
int ret = default_rand->bytes(buf, num);
VALGRIND_DISCARD(VALGRIND_MAKE_MEM_DEFINED(buf, num));
return ret;
}
static void Valgrind_RAND_cleanup(void)
{
default_rand->cleanup();
}
static int Valgrind_RAND_add(const void* buf, int num, double randomness)
{
VALGRIND_DISCARD(VALGRIND_MAKE_MEM_DEFINED(buf, num));
return default_rand->add(buf, num, randomness);
}
static int Valgrind_RAND_pseudorand(unsigned char* buf, int num)
{
int ret = default_rand->pseudorand(buf, num);
VALGRIND_DISCARD(VALGRIND_MAKE_MEM_DEFINED(buf, num));
return ret;
}
static int Valgrind_RAND_status(void)
{
return default_rand->status();
}
static RAND_METHOD valgrind_rand;
void ValgrindRandomSetup()
{
memset(&valgrind_rand, 0, sizeof(RAND_METHOD));
default_rand = RAND_get_rand_method();
if (default_rand->seed)
valgrind_rand.seed = &Valgrind_RAND_seed;
if (default_rand->bytes)
valgrind_rand.bytes = &Valgrind_RAND_bytes;
if (default_rand->cleanup)
valgrind_rand.cleanup = &Valgrind_RAND_cleanup;
if (default_rand->add)
valgrind_rand.add = &Valgrind_RAND_add;
if (default_rand->pseudorand)
valgrind_rand.pseudorand = &Valgrind_RAND_pseudorand;
if (default_rand->status)
valgrind_rand.status = &Valgrind_RAND_status;
RAND_set_rand_method(&valgrind_rand);
}
#endif
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