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//
// ssl/detail/impl/openssl_init.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2005 Voipster / Indrek dot Juhani at voipster dot com
// Copyright (c) 2005-2017 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP
#define BOOST_ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <vector>
#include <boost/asio/detail/assert.hpp>
#include <boost/asio/detail/mutex.hpp>
#include <boost/asio/detail/tss_ptr.hpp>
#include <boost/asio/ssl/detail/openssl_init.hpp>
#include <boost/asio/ssl/detail/openssl_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace ssl {
namespace detail {
class openssl_init_base::do_init
{
public:
do_init()
{
#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
::SSL_library_init();
::SSL_load_error_strings();
::OpenSSL_add_all_algorithms();
mutexes_.resize(::CRYPTO_num_locks());
for (size_t i = 0; i < mutexes_.size(); ++i)
mutexes_[i].reset(new boost::asio::detail::mutex);
::CRYPTO_set_locking_callback(&do_init::openssl_locking_func);
#endif // (OPENSSL_VERSION_NUMBER < 0x10100000L)
#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
::CRYPTO_set_id_callback(&do_init::openssl_id_func);
#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
#if !defined(SSL_OP_NO_COMPRESSION) \
&& (OPENSSL_VERSION_NUMBER >= 0x00908000L)
null_compression_methods_ = sk_SSL_COMP_new_null();
#endif // !defined(SSL_OP_NO_COMPRESSION)
// && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
}
~do_init()
{
#if !defined(SSL_OP_NO_COMPRESSION) \
&& (OPENSSL_VERSION_NUMBER >= 0x00908000L)
sk_SSL_COMP_free(null_compression_methods_);
#endif // !defined(SSL_OP_NO_COMPRESSION)
// && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
::CRYPTO_set_id_callback(0);
#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
::CRYPTO_set_locking_callback(0);
::ERR_free_strings();
::EVP_cleanup();
::CRYPTO_cleanup_all_ex_data();
#endif // (OPENSSL_VERSION_NUMBER < 0x10100000L)
#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
::ERR_remove_state(0);
#elif (OPENSSL_VERSION_NUMBER < 0x10100000L)
::ERR_remove_thread_state(NULL);
#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
#if !defined(SSL_OP_NO_COMPRESSION) \
&& (OPENSSL_VERSION_NUMBER >= 0x10002000L) \
&& (OPENSSL_VERSION_NUMBER < 0x10100000L)
::SSL_COMP_free_compression_methods();
#endif // (OPENSSL_VERSION_NUMBER >= 0x10002000L)
// && (OPENSSL_VERSION_NUMBER < 0x10100000L)
#if !defined(OPENSSL_IS_BORINGSSL)
::CONF_modules_unload(1);
#endif // !defined(OPENSSL_IS_BORINGSSL)
#if !defined(OPENSSL_NO_ENGINE) \
&& (OPENSSL_VERSION_NUMBER < 0x10100000L)
::ENGINE_cleanup();
#endif // !defined(OPENSSL_NO_ENGINE)
// && (OPENSSL_VERSION_NUMBER < 0x10100000L)
}
#if !defined(SSL_OP_NO_COMPRESSION) \
&& (OPENSSL_VERSION_NUMBER >= 0x00908000L)
STACK_OF(SSL_COMP)* get_null_compression_methods() const
{
return null_compression_methods_;
}
#endif // !defined(SSL_OP_NO_COMPRESSION)
// && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
private:
#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
static unsigned long openssl_id_func()
{
#if defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
return ::GetCurrentThreadId();
#else // defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
void* id = &errno;
BOOST_ASIO_ASSERT(sizeof(unsigned long) >= sizeof(void*));
return reinterpret_cast<unsigned long>(id);
#endif // defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
}
#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
static void openssl_locking_func(int mode, int n,
const char* /*file*/, int /*line*/)
{
if (mode & CRYPTO_LOCK)
instance()->mutexes_[n]->lock();
else
instance()->mutexes_[n]->unlock();
}
// Mutexes to be used in locking callbacks.
std::vector<boost::asio::detail::shared_ptr<
boost::asio::detail::mutex> > mutexes_;
#endif // (OPENSSL_VERSION_NUMBER < 0x10100000L)
#if !defined(SSL_OP_NO_COMPRESSION) \
&& (OPENSSL_VERSION_NUMBER >= 0x00908000L)
STACK_OF(SSL_COMP)* null_compression_methods_;
#endif // !defined(SSL_OP_NO_COMPRESSION)
// && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
};
boost::asio::detail::shared_ptr<openssl_init_base::do_init>
openssl_init_base::instance()
{
static boost::asio::detail::shared_ptr<do_init> init(new do_init);
return init;
}
#if !defined(SSL_OP_NO_COMPRESSION) \
&& (OPENSSL_VERSION_NUMBER >= 0x00908000L)
STACK_OF(SSL_COMP)* openssl_init_base::get_null_compression_methods()
{
return instance()->get_null_compression_methods();
}
#endif // !defined(SSL_OP_NO_COMPRESSION)
// && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
} // namespace detail
} // namespace ssl
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP
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