mirror of
https://github.com/Telecominfraproject/wlan-cloud-lib-poco.git
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151 lines
4.0 KiB
C++
151 lines
4.0 KiB
C++
//
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// OpenSSLInitializer.cpp
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//
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// $Id: //poco/Main/Crypto/src/OpenSSLInitializer.cpp#1 $
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//
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// Library: Crypto
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// Package: CryotpCore
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// Module: OpenSSLInitializer
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//
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// Copyright (c) 2006-2009, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/Crypto/OpenSSLInitializer.h"
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#include "Poco/RandomStream.h"
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#include "Poco/Thread.h"
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#include <openssl/ssl.h>
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#include <openssl/rand.h>
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#include <openssl/crypto.h>
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#include <openssl/err.h>
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using Poco::RandomInputStream;
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using Poco::Thread;
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using Poco::FastMutex;
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namespace Poco {
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namespace Crypto {
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FastMutex* OpenSSLInitializer::_mutexes(0);
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int OpenSSLInitializer::_rc(0);
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static OpenSSLInitializer initializer;
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OpenSSLInitializer::OpenSSLInitializer()
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{
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initialize();
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}
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OpenSSLInitializer::~OpenSSLInitializer()
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{
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uninitialize();
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}
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void OpenSSLInitializer::initialize()
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{
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if (++_rc == 1)
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{
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poco_assert (1 == SSL_library_init()); // always returns 1
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SSL_load_error_strings();
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char seed[SEEDSIZE];
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RandomInputStream rnd;
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rnd.read(seed, sizeof(seed));
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RAND_seed(seed, SEEDSIZE);
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int nMutexes = CRYPTO_num_locks();
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_mutexes = new FastMutex[nMutexes];
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CRYPTO_set_locking_callback(&OpenSSLInitializer::lock);
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#ifndef POCO_OS_FAMILY_WINDOWS // SF# 1828231: random unhandled exceptions when linking with ssl
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CRYPTO_set_id_callback(&OpenSSLInitializer::id);
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#endif
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CRYPTO_set_dynlock_create_callback(&OpenSSLInitializer::dynlockCreate);
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CRYPTO_set_dynlock_lock_callback(&OpenSSLInitializer::dynlock);
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CRYPTO_set_dynlock_destroy_callback(&OpenSSLInitializer::dynlockDestroy);
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}
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}
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void OpenSSLInitializer::uninitialize()
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{
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if (--_rc == 0)
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{
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EVP_cleanup();
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ERR_free_strings();
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CRYPTO_set_locking_callback(0);
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delete [] _mutexes;
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}
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}
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void OpenSSLInitializer::lock(int mode, int n, const char* file, int line)
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{
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if (mode & CRYPTO_LOCK)
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_mutexes[n].lock();
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else
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_mutexes[n].unlock();
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}
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unsigned long OpenSSLInitializer::id()
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{
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Thread* pThread = Thread::current();
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return pThread ? pThread->id() : 0;
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}
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struct CRYPTO_dynlock_value* OpenSSLInitializer::dynlockCreate(const char* file, int line)
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{
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return new CRYPTO_dynlock_value;
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}
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void OpenSSLInitializer::dynlock(int mode, struct CRYPTO_dynlock_value* lock, const char* file, int line)
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{
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poco_check_ptr (lock);
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if (mode & CRYPTO_LOCK)
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lock->_mutex.lock();
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else
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lock->_mutex.unlock();
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}
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void OpenSSLInitializer::dynlockDestroy(struct CRYPTO_dynlock_value* lock, const char* file, int line)
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{
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delete lock;
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}
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} } // namespace Poco::Crypto
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