quic_session.cc revision 7dbb3d5cf0c15f500944d211057644d6a2f37371
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/quic/quic_session.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/stl_util.h" 8eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "net/quic/crypto/proof_verifier.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/quic/quic_connection.h" 107dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "net/ssl/ssl_info.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using base::StringPiece; 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using base::hash_map; 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using base::hash_set; 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using std::vector; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace net { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 19868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#define ENDPOINT (is_server_ ? "Server: " : " Client: ") 20868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// We want to make sure we delete any closed streams in a safe manner. 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// To avoid deleting a stream in mid-operation, we have a simple shim between 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// us and the stream, so we can delete any streams when we return from 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// processing. 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// We could just override the base methods, but this makes it easier to make 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// sure we don't miss any. 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class VisitorShim : public QuicConnectionVisitorInterface { 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) explicit VisitorShim(QuicSession* session) : session_(session) {} 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual bool OnPacket(const IPEndPoint& self_address, 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const IPEndPoint& peer_address, 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const QuicPacketHeader& header, 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const vector<QuicStreamFrame>& frame) OVERRIDE { 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool accepted = session_->OnPacket(self_address, peer_address, header, 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) frame); 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->PostProcessAfterData(); 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return accepted; 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void OnRstStream(const QuicRstStreamFrame& frame) OVERRIDE { 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->OnRstStream(frame); 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->PostProcessAfterData(); 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void OnGoAway(const QuicGoAwayFrame& frame) OVERRIDE { 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->OnGoAway(frame); 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->PostProcessAfterData(); 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void OnAck(const SequenceNumberSet& acked_packets) OVERRIDE { 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->OnAck(acked_packets); 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->PostProcessAfterData(); 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual bool OnCanWrite() OVERRIDE { 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool rc = session_->OnCanWrite(); 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->PostProcessAfterData(); 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return rc; 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void ConnectionClose(QuicErrorCode error, bool from_peer) OVERRIDE { 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) session_->ConnectionClose(error, from_peer); 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // The session will go away, so don't bother with cleanup. 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicSession* session_; 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)QuicSession::QuicSession(QuicConnection* connection, 7290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const QuicConfig& config, 7390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bool is_server) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : connection_(connection), 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) visitor_shim_(new VisitorShim(this)), 7690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) config_(config), 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) max_open_streams_(kDefaultMaxStreamsPerConnection), 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) next_stream_id_(is_server ? 2 : 3), 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) is_server_(is_server), 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) largest_peer_created_stream_id_(0), 81868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) error_(QUIC_NO_ERROR), 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) goaway_received_(false), 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) goaway_sent_(false) { 84868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) set_max_open_streams(config_.max_streams_per_connection()); 85868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 86868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) connection_->set_visitor(visitor_shim_.get()); 87868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) connection_->SetIdleNetworkTimeout(config_.idle_connection_state_lifetime()); 88868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) connection_->SetOverallConnectionTimeout( 89868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) config_.max_time_before_crypto_handshake()); 90868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // TODO(satyamshekhar): Set congestion control and ICSL also. 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)QuicSession::~QuicSession() { 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) STLDeleteElements(&closed_streams_); 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) STLDeleteValues(&stream_map_); 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool QuicSession::OnPacket(const IPEndPoint& self_address, 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const IPEndPoint& peer_address, 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const QuicPacketHeader& header, 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const vector<QuicStreamFrame>& frames) { 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (header.public_header.guid != connection()->guid()) { 103868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) DLOG(INFO) << ENDPOINT << "Got packet header for invalid GUID: " 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) << header.public_header.guid; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < frames.size(); ++i) { 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(rch) deal with the error case of stream id 0 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (IsClosedStream(frames[i].stream_id)) continue; 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReliableQuicStream* stream = GetStream(frames[i].stream_id); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream == NULL) return false; 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!stream->WillAcceptStreamFrame(frames[i])) return false; 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(alyssar) check against existing connection address: if changed, make 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // sure we update the connection. 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < frames.size(); ++i) { 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReliableQuicStream* stream = GetStream(frames[i].stream_id); 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream) { 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream->OnStreamFrame(frames[i]); 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 125b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) 126b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) while (!decompression_blocked_streams_.empty()) { 127b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QuicHeaderId header_id = decompression_blocked_streams_.begin()->first; 128868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (header_id != decompressor_.current_header_id()) { 129868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) break; 130b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) } 131868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QuicStreamId stream_id = decompression_blocked_streams_.begin()->second; 132868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) decompression_blocked_streams_.erase(header_id); 133868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ReliableQuicStream* stream = GetStream(stream_id); 134868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!stream) { 135868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) connection()->SendConnectionClose( 136868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED); 137868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) } 138868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) stream->OnDecompressorAvailable(); 139b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) } 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void QuicSession::OnRstStream(const QuicRstStreamFrame& frame) { 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReliableQuicStream* stream = GetStream(frame.stream_id); 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!stream) { 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; // Errors are handled by GetStream. 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) stream->OnStreamReset(frame.error_code); 1492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void QuicSession::OnGoAway(const QuicGoAwayFrame& frame) { 1522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(frame.last_good_stream_id < next_stream_id_); 1532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) goaway_received_ = true; 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void QuicSession::ConnectionClose(QuicErrorCode error, bool from_peer) { 157868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (error_ == QUIC_NO_ERROR) { 158868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) error_ = error; 159868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) } 160868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while (stream_map_.size() != 0) { 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReliableStreamMap::iterator it = stream_map_.begin(); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId id = it->first; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) it->second->ConnectionClose(error, from_peer); 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The stream should call CloseStream as part of ConnectionClose. 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream_map_.find(id) != stream_map_.end()) { 167868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) LOG(DFATAL) << ENDPOINT << "Stream failed to close under ConnectionClose"; 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CloseStream(id); 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool QuicSession::OnCanWrite() { 1742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // We latch this here rather than doing a traditional loop, because streams 1752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // may be modifying the list as we loop. 1762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int remaining_writes = write_blocked_streams_.NumObjects(); 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) while (!connection_->HasQueuedData() && 1792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) remaining_writes > 0) { 1802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!write_blocked_streams_.IsEmpty()); 1812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ReliableQuicStream* stream = 1822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GetStream(write_blocked_streams_.GetNextBlockedObject()); 1832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (stream != NULL) { 1842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // If the stream can't write all bytes, it'll re-add itself to the blocked 1852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // list. 1862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) stream->OnCanWrite(); 1872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) --remaining_writes; 1892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return write_blocked_streams_.IsEmpty(); 1922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)QuicConsumedData QuicSession::WriteData(QuicStreamId id, 1952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) StringPiece data, 1962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QuicStreamOffset offset, 1972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool fin) { 1982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return connection_->SendStreamData(id, data, offset, fin); 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void QuicSession::SendRstStream(QuicStreamId id, 202c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) QuicRstStreamErrorCode error) { 2032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) connection_->SendRstStream(id, error); 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CloseStream(id); 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void QuicSession::SendGoAway(QuicErrorCode error_code, const string& reason) { 2082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) goaway_sent_ = true; 2092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) connection_->SendGoAway(error_code, largest_peer_created_stream_id_, reason); 2102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void QuicSession::CloseStream(QuicStreamId stream_id) { 213868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) DLOG(INFO) << ENDPOINT << "Closing stream " << stream_id; 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReliableStreamMap::iterator it = stream_map_.find(stream_id); 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (it == stream_map_.end()) { 217868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) DLOG(INFO) << ENDPOINT << "Stream is already closed: " << stream_id; 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 220c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ReliableQuicStream* stream = it->second; 2212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) closed_streams_.push_back(it->second); 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_map_.erase(it); 223c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) stream->OnClose(); 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 226c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)bool QuicSession::IsEncryptionEstablished() { 227c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return GetCryptoStream()->encryption_established(); 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 230c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)bool QuicSession::IsCryptoHandshakeConfirmed() { 231c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return GetCryptoStream()->handshake_confirmed(); 232c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 233c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 234c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void QuicSession::OnCryptoHandshakeEvent(CryptoHandshakeEvent event) { 23590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) switch (event) { 23690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // TODO(satyamshekhar): Move the logic of setting the encrypter/decrypter 23790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // to QuicSession since it is the glue. 23890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) case ENCRYPTION_FIRST_ESTABLISHED: 23990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) break; 24090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 24190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) case ENCRYPTION_REESTABLISHED: 24290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Retransmit originally packets that were sent, since they can't be 24390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // decrypted by the peer. 24490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) connection_->RetransmitUnackedPackets( 24590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) QuicConnection::INITIAL_ENCRYPTION_ONLY); 24690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) break; 24790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 24890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) case HANDSHAKE_CONFIRMED: 249868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) LOG_IF(DFATAL, !config_.negotiated()) << ENDPOINT 25090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) << "Handshake confirmed without parameter negotiation."; 251868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) connection_->SetIdleNetworkTimeout( 25290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) config_.idle_connection_state_lifetime()); 253868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) connection_->SetOverallConnectionTimeout(QuicTime::Delta::Infinite()); 25490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) max_open_streams_ = config_.max_streams_per_connection(); 25590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) break; 25690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 25790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) default: 258868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) LOG(ERROR) << ENDPOINT << "Got unknown handshake event: " << event; 259b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) } 2602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 26290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)QuicConfig* QuicSession::config() { 26390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return &config_; 26490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 26590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void QuicSession::ActivateStream(ReliableQuicStream* stream) { 267868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) DLOG(INFO) << ENDPOINT << "num_streams: " << stream_map_.size() 268868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) << ". activating " << stream->id(); 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(stream_map_.count(stream->id()) == 0); 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_map_[stream->id()] = stream; 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)QuicStreamId QuicSession::GetNextStreamId() { 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId id = next_stream_id_; 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) next_stream_id_ += 2; 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return id; 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ReliableQuicStream* QuicSession::GetStream(const QuicStreamId stream_id) { 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream_id == kCryptoStreamId) { 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GetCryptoStream(); 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReliableStreamMap::iterator it = stream_map_.find(stream_id); 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (it != stream_map_.end()) { 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return it->second; 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (IsClosedStream(stream_id)) { 2902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 2912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream_id % 2 == next_stream_id_ % 2) { 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We've received a frame for a locally-created stream that is not 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // currently active. This is an error. 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) connection()->SendConnectionClose(QUIC_PACKET_FOR_NONEXISTENT_STREAM); 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GetIncomingReliableStream(stream_id); 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ReliableQuicStream* QuicSession::GetIncomingReliableStream( 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QuicStreamId stream_id) { 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (IsClosedStream(stream_id)) { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (goaway_sent_) { 3102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // We've already sent a GoAway 311c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) SendRstStream(stream_id, QUIC_STREAM_PEER_GOING_AWAY); 3122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 3132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 3142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) implicitly_created_streams_.erase(stream_id); 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream_id > largest_peer_created_stream_id_) { 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(rch) add unit test for this 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream_id - largest_peer_created_stream_id_ > kMaxStreamIdDelta) { 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) connection()->SendConnectionClose(QUIC_INVALID_STREAM_ID); 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (largest_peer_created_stream_id_ != 0) { 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (QuicStreamId id = largest_peer_created_stream_id_ + 2; 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) id < stream_id; 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) id += 2) { 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) implicitly_created_streams_.insert(id); 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) largest_peer_created_stream_id_ = stream_id; 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ReliableQuicStream* stream = CreateIncomingReliableStream(stream_id); 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream == NULL) { 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ActivateStream(stream); 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return stream; 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool QuicSession::IsClosedStream(QuicStreamId id) { 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_NE(0u, id); 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (id == kCryptoStreamId) { 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream_map_.count(id) != 0) { 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Stream is active 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (id % 2 == next_stream_id_ % 2) { 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Locally created streams are strictly in-order. If the id is in the 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // range of created streams and it's not active, it must have been closed. 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return id < next_stream_id_; 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // For peer created streams, we also need to consider implicitly created 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // streams. 3552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return id <= largest_peer_created_stream_id_ && 3562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) implicitly_created_streams_.count(id) == 0; 3572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)size_t QuicSession::GetNumOpenStreams() const { 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return stream_map_.size() + implicitly_created_streams_.size(); 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void QuicSession::MarkWriteBlocked(QuicStreamId id) { 3642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_blocked_streams_.AddBlockedObject(id); 3652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 367b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)void QuicSession::MarkDecompressionBlocked(QuicHeaderId header_id, 368b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QuicStreamId stream_id) { 369b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) decompression_blocked_streams_[header_id] = stream_id; 370b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles)} 371b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) 3727dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdochbool QuicSession::GetSSLInfo(SSLInfo* ssl_info) { 3737dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch NOTIMPLEMENTED(); 3747dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch return false; 3757dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch} 3767dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 3772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void QuicSession::PostProcessAfterData() { 3782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) STLDeleteElements(&closed_streams_); 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) closed_streams_.clear(); 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 383