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* Copyright 2016 The WebRTC Project Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include <memory>
#include <string>
#include "net/quic/quic_crypto_client_stream.h"
#include "net/quic/quic_crypto_server_stream.h"
#include "net/quic/quic_crypto_stream.h"
#include "net/quic/quic_session.h"
#include "webrtc/p2p/quic/reliablequicstream.h"
#include "webrtc/rtc_base/constructormagic.h"
#include "webrtc/rtc_base/sigslot.h"
#include "webrtc/rtc_base/sslidentity.h"
namespace cricket {
// This class provides a QUIC session over peer-to-peer transport that
// negotiates the crypto handshake (using QuicCryptoHandshake) and provides
// reading/writing of data using QUIC packets.
class QuicSession : public net::QuicSession, public sigslot::has_slots<> {
QuicSession(std::unique_ptr<net::QuicConnection> connection,
const net::QuicConfig& config);
~QuicSession() override;
// Initiates client crypto handshake by sending client hello.
void StartClientHandshake(net::QuicCryptoClientStream* crypto_stream);
// Responds to a client who has inititated the crypto handshake.
void StartServerHandshake(net::QuicCryptoServerStream* crypto_stream);
// QuicSession overrides.
net::QuicCryptoStream* GetCryptoStream() override {
return crypto_stream_.get();
ReliableQuicStream* CreateOutgoingDynamicStream(
net::SpdyPriority priority) override;
// QuicSession optional overrides.
void OnCryptoHandshakeEvent(CryptoHandshakeEvent event) override;
void CloseStream(net::QuicStreamId stream_id) override;
// QuicConnectionVisitorInterface overrides.
void OnConnectionClosed(net::QuicErrorCode error,
const std::string& error_details,
net::ConnectionCloseSource source) override;
// Exports keying material for SRTP.
bool ExportKeyingMaterial(base::StringPiece label,
base::StringPiece context,
size_t result_len,
std::string* result);
// Decrypts an incoming QUIC packet to a data stream.
bool OnReadPacket(const char* data, size_t data_len);
// Called when peers have established forward-secure encryption
sigslot::signal0<> SignalHandshakeComplete;
// Called when connection closes locally, or remotely by peer.
sigslot::signal2<net::QuicErrorCode, bool> SignalConnectionClosed;
// Called when an incoming QUIC stream is created so we can process data
// from it by registering a listener to
// ReliableQuicStream::SignalDataReceived.
sigslot::signal1<ReliableQuicStream*> SignalIncomingStream;
// Sets the QUIC crypto stream and takes ownership of it.
void SetCryptoStream(net::QuicCryptoStream* crypto_stream);
// QuicSession override.
ReliableQuicStream* CreateIncomingDynamicStream(
net::QuicStreamId id) override;
virtual ReliableQuicStream* CreateDataStream(net::QuicStreamId id,
net::SpdyPriority priority);
std::unique_ptr<net::QuicCryptoStream> crypto_stream_;
net::QuicClock clock_; // For recording packet receipt time
} // namespace cricket