1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_QUIC_QUIC_CRYPTO_STREAM_H_ 6 #define NET_QUIC_QUIC_CRYPTO_STREAM_H_ 7 8 #include "net/quic/crypto/crypto_framer.h" 9 #include "net/quic/crypto/crypto_utils.h" 10 #include "net/quic/quic_config.h" 11 #include "net/quic/quic_protocol.h" 12 #include "net/quic/reliable_quic_stream.h" 13 14 namespace net { 15 16 class CryptoHandshakeMessage; 17 class QuicSession; 18 19 // Crypto handshake messages in QUIC take place over a reserved 20 // reliable stream with the id 1. Each endpoint (client and server) 21 // will allocate an instance of a subclass of QuicCryptoStream 22 // to send and receive handshake messages. (In the normal 1-RTT 23 // handshake, the client will send a client hello, CHLO, message. 24 // The server will receive this message and respond with a server 25 // hello message, SHLO. At this point both sides will have established 26 // a crypto context they can use to send encrypted messages. 27 // 28 // For more details: http://goto.google.com/quic-crypto 29 class NET_EXPORT_PRIVATE QuicCryptoStream 30 : public ReliableQuicStream, 31 public CryptoFramerVisitorInterface { 32 public: 33 explicit QuicCryptoStream(QuicSession* session); 34 35 // CryptoFramerVisitorInterface implementation 36 virtual void OnError(CryptoFramer* framer) OVERRIDE; 37 virtual void OnHandshakeMessage(const CryptoHandshakeMessage& message) = 0; 38 39 // ReliableQuicStream implementation 40 virtual uint32 ProcessData(const char* data, uint32 data_len) OVERRIDE; 41 42 // Sends |message| to the peer. 43 // TODO(wtc): return a success/failure status. 44 void SendHandshakeMessage(const CryptoHandshakeMessage& message); 45 46 bool encryption_established() { return encryption_established_; } 47 bool handshake_confirmed() { return handshake_confirmed_; } 48 49 const QuicCryptoNegotiatedParameters& crypto_negotiated_params() const; 50 51 protected: 52 // Closes the connection 53 void CloseConnection(QuicErrorCode error); 54 void CloseConnectionWithDetails(QuicErrorCode error, const string& details); 55 56 bool encryption_established_; 57 bool handshake_confirmed_; 58 59 QuicCryptoNegotiatedParameters crypto_negotiated_params_; 60 61 private: 62 CryptoFramer crypto_framer_; 63 64 DISALLOW_COPY_AND_ASSIGN(QuicCryptoStream); 65 }; 66 67 } // namespace net 68 69 #endif // NET_QUIC_QUIC_CRYPTO_STREAM_H_ 70
