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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // A QuicSession, which demuxes a single connection to individual streams. | 5 // A QuicSession, which demuxes a single connection to individual streams. |
6 | 6 |
7 #ifndef NET_QUIC_QUIC_SESSION_H_ | 7 #ifndef NET_QUIC_QUIC_SESSION_H_ |
8 #define NET_QUIC_QUIC_SESSION_H_ | 8 #define NET_QUIC_QUIC_SESSION_H_ |
9 | 9 |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "base/compiler_specific.h" | 12 #include "base/compiler_specific.h" |
13 #include "base/containers/hash_tables.h" | 13 #include "base/containers/hash_tables.h" |
14 #include "net/base/ip_endpoint.h" | 14 #include "net/base/ip_endpoint.h" |
15 #include "net/base/linked_hash_map.h" | 15 #include "net/base/linked_hash_map.h" |
16 #include "net/quic/quic_connection.h" | 16 #include "net/quic/quic_connection.h" |
17 #include "net/quic/quic_crypto_stream.h" | 17 #include "net/quic/quic_crypto_stream.h" |
18 #include "net/quic/quic_data_stream.h" | 18 #include "net/quic/quic_data_stream.h" |
19 #include "net/quic/quic_headers_stream.h" | 19 #include "net/quic/quic_headers_stream.h" |
20 #include "net/quic/quic_packet_creator.h" | 20 #include "net/quic/quic_packet_creator.h" |
21 #include "net/quic/quic_protocol.h" | 21 #include "net/quic/quic_protocol.h" |
22 #include "net/quic/quic_write_blocked_list.h" | 22 #include "net/quic/quic_write_blocked_list.h" |
23 #include "net/quic/reliable_quic_stream.h" | 23 #include "net/quic/reliable_quic_stream.h" |
24 | 24 |
25 namespace net { | 25 namespace net { |
26 | 26 |
27 class QuicCryptoStream; | 27 class QuicCryptoStream; |
| 28 class QuicFlowController; |
28 class ReliableQuicStream; | 29 class ReliableQuicStream; |
29 class SSLInfo; | 30 class SSLInfo; |
30 class VisitorShim; | 31 class VisitorShim; |
31 | 32 |
32 namespace test { | 33 namespace test { |
33 class QuicSessionPeer; | 34 class QuicSessionPeer; |
34 } // namespace test | 35 } // namespace test |
35 | 36 |
36 class NET_EXPORT_PRIVATE QuicSession : public QuicConnectionVisitorInterface { | 37 class NET_EXPORT_PRIVATE QuicSession : public QuicConnectionVisitorInterface { |
37 public: | 38 public: |
38 // CryptoHandshakeEvent enumerates the events generated by a QuicCryptoStream. | 39 // CryptoHandshakeEvent enumerates the events generated by a QuicCryptoStream. |
39 enum CryptoHandshakeEvent { | 40 enum CryptoHandshakeEvent { |
40 // ENCRYPTION_FIRST_ESTABLISHED indicates that a full client hello has been | 41 // ENCRYPTION_FIRST_ESTABLISHED indicates that a full client hello has been |
41 // sent by a client and that subsequent packets will be encrypted. (Client | 42 // sent by a client and that subsequent packets will be encrypted. (Client |
42 // only.) | 43 // only.) |
43 ENCRYPTION_FIRST_ESTABLISHED, | 44 ENCRYPTION_FIRST_ESTABLISHED, |
44 // ENCRYPTION_REESTABLISHED indicates that a client hello was rejected by | 45 // ENCRYPTION_REESTABLISHED indicates that a client hello was rejected by |
45 // the server and thus the encryption key has been updated. Therefore the | 46 // the server and thus the encryption key has been updated. Therefore the |
46 // connection should resend any packets that were sent under | 47 // connection should resend any packets that were sent under |
47 // ENCRYPTION_INITIAL. (Client only.) | 48 // ENCRYPTION_INITIAL. (Client only.) |
48 ENCRYPTION_REESTABLISHED, | 49 ENCRYPTION_REESTABLISHED, |
49 // HANDSHAKE_CONFIRMED, in a client, indicates the the server has accepted | 50 // HANDSHAKE_CONFIRMED, in a client, indicates the the server has accepted |
50 // our handshake. In a server it indicates that a full, valid client hello | 51 // our handshake. In a server it indicates that a full, valid client hello |
51 // has been received. (Client and server.) | 52 // has been received. (Client and server.) |
52 HANDSHAKE_CONFIRMED, | 53 HANDSHAKE_CONFIRMED, |
53 }; | 54 }; |
54 | 55 |
55 QuicSession(QuicConnection* connection, | 56 QuicSession(QuicConnection* connection, |
| 57 uint32 max_flow_control_receive_window_bytes, |
56 const QuicConfig& config); | 58 const QuicConfig& config); |
57 | 59 |
58 virtual ~QuicSession(); | 60 virtual ~QuicSession(); |
59 | 61 |
60 // QuicConnectionVisitorInterface methods: | 62 // QuicConnectionVisitorInterface methods: |
61 virtual void OnStreamFrames( | 63 virtual void OnStreamFrames( |
62 const std::vector<QuicStreamFrame>& frames) OVERRIDE; | 64 const std::vector<QuicStreamFrame>& frames) OVERRIDE; |
63 virtual void OnRstStream(const QuicRstStreamFrame& frame) OVERRIDE; | 65 virtual void OnRstStream(const QuicRstStreamFrame& frame) OVERRIDE; |
64 virtual void OnGoAway(const QuicGoAwayFrame& frame) OVERRIDE; | 66 virtual void OnGoAway(const QuicGoAwayFrame& frame) OVERRIDE; |
65 virtual void OnWindowUpdateFrames( | 67 virtual void OnWindowUpdateFrames( |
66 const std::vector<QuicWindowUpdateFrame>& frames) OVERRIDE; | 68 const std::vector<QuicWindowUpdateFrame>& frames) OVERRIDE; |
67 virtual void OnBlockedFrames( | 69 virtual void OnBlockedFrames( |
68 const std::vector<QuicBlockedFrame>& frames) OVERRIDE; | 70 const std::vector<QuicBlockedFrame>& frames) OVERRIDE; |
69 virtual void OnConnectionClosed(QuicErrorCode error, bool from_peer) OVERRIDE; | 71 virtual void OnConnectionClosed(QuicErrorCode error, bool from_peer) OVERRIDE; |
70 virtual void OnWriteBlocked() OVERRIDE {} | 72 virtual void OnWriteBlocked() OVERRIDE {} |
71 virtual void OnSuccessfulVersionNegotiation( | 73 virtual void OnSuccessfulVersionNegotiation( |
72 const QuicVersion& version) OVERRIDE {} | 74 const QuicVersion& version) OVERRIDE; |
73 virtual void OnCanWrite() OVERRIDE; | 75 virtual void OnCanWrite() OVERRIDE; |
74 virtual bool HasPendingWrites() const OVERRIDE; | 76 virtual bool WillingAndAbleToWrite() const OVERRIDE; |
75 virtual bool HasPendingHandshake() const OVERRIDE; | 77 virtual bool HasPendingHandshake() const OVERRIDE; |
76 virtual bool HasOpenDataStreams() const OVERRIDE; | 78 virtual bool HasOpenDataStreams() const OVERRIDE; |
77 | 79 |
78 // Called by the headers stream when headers have been received for a stream. | 80 // Called by the headers stream when headers have been received for a stream. |
79 virtual void OnStreamHeaders(QuicStreamId stream_id, | 81 virtual void OnStreamHeaders(QuicStreamId stream_id, |
80 base::StringPiece headers_data); | 82 base::StringPiece headers_data); |
81 // Called by the headers stream when headers with a priority have been | 83 // Called by the headers stream when headers with a priority have been |
82 // received for this stream. This method will only be called for server | 84 // received for this stream. This method will only be called for server |
83 // streams. | 85 // streams. |
84 virtual void OnStreamHeadersPriority(QuicStreamId stream_id, | 86 virtual void OnStreamHeadersPriority(QuicStreamId stream_id, |
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194 return goaway_sent_; | 196 return goaway_sent_; |
195 } | 197 } |
196 | 198 |
197 // Gets the SSL connection information. | 199 // Gets the SSL connection information. |
198 virtual bool GetSSLInfo(SSLInfo* ssl_info) const; | 200 virtual bool GetSSLInfo(SSLInfo* ssl_info) const; |
199 | 201 |
200 QuicErrorCode error() const { return error_; } | 202 QuicErrorCode error() const { return error_; } |
201 | 203 |
202 bool is_server() const { return connection_->is_server(); } | 204 bool is_server() const { return connection_->is_server(); } |
203 | 205 |
| 206 uint32 max_flow_control_receive_window_bytes() { |
| 207 return max_flow_control_receive_window_bytes_; |
| 208 } |
| 209 |
| 210 QuicFlowController* flow_controller() { return flow_controller_.get(); } |
| 211 |
204 protected: | 212 protected: |
205 typedef base::hash_map<QuicStreamId, QuicDataStream*> DataStreamMap; | 213 typedef base::hash_map<QuicStreamId, QuicDataStream*> DataStreamMap; |
206 | 214 |
207 // Creates a new stream, owned by the caller, to handle a peer-initiated | 215 // Creates a new stream, owned by the caller, to handle a peer-initiated |
208 // stream. Returns NULL and does error handling if the stream can not be | 216 // stream. Returns NULL and does error handling if the stream can not be |
209 // created. | 217 // created. |
210 virtual QuicDataStream* CreateIncomingDataStream(QuicStreamId id) = 0; | 218 virtual QuicDataStream* CreateIncomingDataStream(QuicStreamId id) = 0; |
211 | 219 |
212 // Create a new stream, owned by the caller, to handle a locally-initiated | 220 // Create a new stream, owned by the caller, to handle a locally-initiated |
213 // stream. Returns NULL if max streams have already been opened. | 221 // stream. Returns NULL if max streams have already been opened. |
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288 QuicErrorCode error_; | 296 QuicErrorCode error_; |
289 | 297 |
290 // Whether a GoAway has been received. | 298 // Whether a GoAway has been received. |
291 bool goaway_received_; | 299 bool goaway_received_; |
292 // Whether a GoAway has been sent. | 300 // Whether a GoAway has been sent. |
293 bool goaway_sent_; | 301 bool goaway_sent_; |
294 | 302 |
295 // Indicate if there is pending data for the crypto stream. | 303 // Indicate if there is pending data for the crypto stream. |
296 bool has_pending_handshake_; | 304 bool has_pending_handshake_; |
297 | 305 |
| 306 // Used for session level flow control. |
| 307 scoped_ptr<QuicFlowController> flow_controller_; |
| 308 |
| 309 // Initial flow control receive window size for new streams. |
| 310 uint32 max_flow_control_receive_window_bytes_; |
| 311 |
298 DISALLOW_COPY_AND_ASSIGN(QuicSession); | 312 DISALLOW_COPY_AND_ASSIGN(QuicSession); |
299 }; | 313 }; |
300 | 314 |
301 } // namespace net | 315 } // namespace net |
302 | 316 |
303 #endif // NET_QUIC_QUIC_SESSION_H_ | 317 #endif // NET_QUIC_QUIC_SESSION_H_ |
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