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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_QUIC_QUIC_CRYPTO_STREAM_H_
#define NET_QUIC_QUIC_CRYPTO_STREAM_H_
#include "net/quic/crypto/crypto_framer.h"
#include "net/quic/crypto/crypto_utils.h"
#include "net/quic/quic_config.h"
#include "net/quic/quic_protocol.h"
#include "net/quic/reliable_quic_stream.h"
namespace net {
class CryptoHandshakeMessage;
class QuicSession;
// Crypto handshake messages in QUIC take place over a reserved
// reliable stream with the id 1. Each endpoint (client and server)
// will allocate an instance of a subclass of QuicCryptoStream
// to send and receive handshake messages. (In the normal 1-RTT
// handshake, the client will send a client hello, CHLO, message.
// The server will receive this message and respond with a server
// hello message, SHLO. At this point both sides will have established
// a crypto context they can use to send encrypted messages.
//
// For more details: http://goto.google.com/quic-crypto
class NET_EXPORT_PRIVATE QuicCryptoStream
: public ReliableQuicStream,
public CryptoFramerVisitorInterface {
public:
explicit QuicCryptoStream(QuicSession* session);
// CryptoFramerVisitorInterface implementation
virtual void OnError(CryptoFramer* framer) OVERRIDE;
virtual void OnHandshakeMessage(const CryptoHandshakeMessage& message) = 0;
// ReliableQuicStream implementation
virtual uint32 ProcessData(const char* data, uint32 data_len) OVERRIDE;
// Sends |message| to the peer.
// TODO(wtc): return a success/failure status.
void SendHandshakeMessage(const CryptoHandshakeMessage& message);
bool encryption_established() { return encryption_established_; }
bool handshake_confirmed() { return handshake_confirmed_; }
const QuicCryptoNegotiatedParameters& crypto_negotiated_params() const;
protected:
// Closes the connection
void CloseConnection(QuicErrorCode error);
void CloseConnectionWithDetails(QuicErrorCode error, const string& details);
bool encryption_established_;
bool handshake_confirmed_;
QuicCryptoNegotiatedParameters crypto_negotiated_params_;
private:
CryptoFramer crypto_framer_;
DISALLOW_COPY_AND_ASSIGN(QuicCryptoStream);
};
} // namespace net
#endif // NET_QUIC_QUIC_CRYPTO_STREAM_H_
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