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/**
* Copyright (c) 2020 Paul-Louis Ageneau
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef RTC_DTLS_SRTP_TRANSPORT_H
#define RTC_DTLS_SRTP_TRANSPORT_H
#include "dtlstransport.hpp"
#include "include.hpp"
#if RTC_ENABLE_MEDIA
#if RTC_SYSTEM_SRTP
#include <srtp2/srtp.h>
#else
#include "srtp.h"
#endif
#include <atomic>
namespace rtc {
class DtlsSrtpTransport final : public DtlsTransport {
public:
static void Init();
static void Cleanup();
DtlsSrtpTransport(std::shared_ptr<IceTransport> lower, std::shared_ptr<Certificate> certificate,
verifier_callback verifierCallback, message_callback srtpRecvCallback,
state_callback stateChangeCallback);
~DtlsSrtpTransport();
bool sendMedia(message_ptr message);
private:
void incoming(message_ptr message) override;
void postHandshake() override;
message_callback mSrtpRecvCallback;
srtp_t mSrtpIn, mSrtpOut;
std::atomic<bool> mInitDone = false;
unsigned char mClientSessionKey[SRTP_AES_ICM_128_KEY_LEN_WSALT];
unsigned char mServerSessionKey[SRTP_AES_ICM_128_KEY_LEN_WSALT];
std::mutex sendMutex;
};
} // namespace rtc
#endif
#endif