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/*
* Copyright (c) 2014, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SRC_COMPONENTS_SECURITY_MANAGER_INCLUDE_SECURITY_MANAGER_CRYPTO_MANAGER_IMPL_H_
#define SRC_COMPONENTS_SECURITY_MANAGER_INCLUDE_SECURITY_MANAGER_CRYPTO_MANAGER_IMPL_H_
#include <stdint.h>
#include <openssl/bio.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <string>
#include <map>
#include "security_manager/crypto_manager.h"
#include "security_manager/ssl_context.h"
#include "utils/macro.h"
#include "utils/lock.h"
namespace security_manager {
class CryptoManagerImpl : public CryptoManager {
private:
class SSLContextImpl : public SSLContext {
public:
SSLContextImpl(SSL *conn, Mode mode);
virtual HandshakeResult StartHandshake(const uint8_t** const out_data,
size_t *out_data_size);
virtual HandshakeResult DoHandshakeStep(const uint8_t *const in_data,
size_t in_data_size,
const uint8_t** const out_data,
size_t *out_data_size);
virtual bool Encrypt(const uint8_t *const in_data, size_t in_data_size,
const uint8_t ** const out_data, size_t *out_data_size);
virtual bool Decrypt(const uint8_t *const in_data, size_t in_data_size,
const uint8_t ** const out_data, size_t *out_data_size);
virtual bool IsInitCompleted() const;
virtual bool IsHandshakePending() const;
virtual size_t get_max_block_size(size_t mtu) const;
virtual std::string LastError() const;
virtual ~SSLContextImpl();
private:
typedef size_t(*BlockSizeGetter)(size_t);
void EnsureBufferSizeEnough(size_t size);
SSL *connection_;
BIO *bioIn_;
BIO *bioOut_;
BIO *bioFilter_;
mutable sync_primitives::Lock bio_locker;
size_t buffer_size_;
uint8_t *buffer_;
bool is_handshake_pending_;
Mode mode_;
BlockSizeGetter max_block_size_;
static std::map<std::string, BlockSizeGetter> max_block_sizes;
static std::map<std::string, BlockSizeGetter> create_max_block_sizes();
DISALLOW_COPY_AND_ASSIGN(SSLContextImpl);
};
public:
CryptoManagerImpl();
virtual bool Init(Mode mode,
Protocol protocol,
const std::string &cert_filename,
const std::string &key_filename,
const std::string &ciphers_list,
bool verify_peer);
virtual void Finish();
virtual SSLContext *CreateSSLContext();
virtual void ReleaseSSLContext(SSLContext *context);
virtual std::string LastError() const;
private:
SSL_CTX *context_;
Mode mode_;
static uint32_t instance_count_;
DISALLOW_COPY_AND_ASSIGN(CryptoManagerImpl);
};
} // namespace security_manager
#endif // SRC_COMPONENTS_SECURITY_MANAGER_INCLUDE_SECURITY_MANAGER_CRYPTO_MANAGER_IMPL_H_
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