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.
5 #include "net/quic/quic_session.h"
10 #include "base/basictypes.h"
11 #include "base/containers/hash_tables.h"
12 #include "net/quic/crypto/crypto_protocol.h"
13 #include "net/quic/quic_crypto_stream.h"
14 #include "net/quic/quic_flags.h"
15 #include "net/quic/quic_protocol.h"
16 #include "net/quic/quic_utils.h"
17 #include "net/quic/reliable_quic_stream.h"
18 #include "net/quic/test_tools/quic_config_peer.h"
19 #include "net/quic/test_tools/quic_connection_peer.h"
20 #include "net/quic/test_tools/quic_data_stream_peer.h"
21 #include "net/quic/test_tools/quic_flow_controller_peer.h"
22 #include "net/quic/test_tools/quic_session_peer.h"
23 #include "net/quic/test_tools/quic_test_utils.h"
24 #include "net/quic/test_tools/reliable_quic_stream_peer.h"
25 #include "net/spdy/spdy_framer.h"
26 #include "net/test/gtest_util.h"
27 #include "testing/gmock/include/gmock/gmock.h"
28 #include "testing/gmock_mutant.h"
29 #include "testing/gtest/include/gtest/gtest.h"
34 using testing::CreateFunctor;
35 using testing::InSequence;
36 using testing::Invoke;
37 using testing::Return;
38 using testing::StrictMock;
45 const QuicPriority kHighestPriority = 0;
46 const QuicPriority kSomeMiddlePriority = 3;
48 class TestCryptoStream : public QuicCryptoStream {
50 explicit TestCryptoStream(QuicSession* session)
51 : QuicCryptoStream(session) {
54 virtual void OnHandshakeMessage(
55 const CryptoHandshakeMessage& message) OVERRIDE {
56 encryption_established_ = true;
57 handshake_confirmed_ = true;
58 CryptoHandshakeMessage msg;
60 session()->config()->SetInitialFlowControlWindowToSend(
61 kInitialSessionFlowControlWindowForTest);
62 session()->config()->SetInitialStreamFlowControlWindowToSend(
63 kInitialStreamFlowControlWindowForTest);
64 session()->config()->SetInitialSessionFlowControlWindowToSend(
65 kInitialSessionFlowControlWindowForTest);
66 session()->config()->ToHandshakeMessage(&msg);
67 const QuicErrorCode error = session()->config()->ProcessPeerHello(
68 msg, CLIENT, &error_details);
69 EXPECT_EQ(QUIC_NO_ERROR, error);
70 session()->OnConfigNegotiated();
71 session()->OnCryptoHandshakeEvent(QuicSession::HANDSHAKE_CONFIRMED);
74 MOCK_METHOD0(OnCanWrite, void());
77 class TestHeadersStream : public QuicHeadersStream {
79 explicit TestHeadersStream(QuicSession* session)
80 : QuicHeadersStream(session) {
83 MOCK_METHOD0(OnCanWrite, void());
86 class TestStream : public QuicDataStream {
88 TestStream(QuicStreamId id, QuicSession* session)
89 : QuicDataStream(id, session) {
92 using ReliableQuicStream::CloseWriteSide;
94 virtual uint32 ProcessData(const char* data, uint32 data_len) OVERRIDE {
98 void SendBody(const string& data, bool fin) {
99 WriteOrBufferData(data, fin, NULL);
102 MOCK_METHOD0(OnCanWrite, void());
105 // Poor man's functor for use as callback in a mock.
106 class StreamBlocker {
108 StreamBlocker(QuicSession* session, QuicStreamId stream_id)
110 stream_id_(stream_id) {
113 void MarkWriteBlocked() {
114 session_->MarkWriteBlocked(stream_id_, kSomeMiddlePriority);
118 QuicSession* const session_;
119 const QuicStreamId stream_id_;
122 class TestSession : public QuicSession {
124 explicit TestSession(QuicConnection* connection)
125 : QuicSession(connection,
126 DefaultQuicConfig()),
127 crypto_stream_(this),
128 writev_consumes_all_data_(false) {}
130 virtual TestCryptoStream* GetCryptoStream() OVERRIDE {
131 return &crypto_stream_;
134 virtual TestStream* CreateOutgoingDataStream() OVERRIDE {
135 TestStream* stream = new TestStream(GetNextStreamId(), this);
136 ActivateStream(stream);
140 virtual TestStream* CreateIncomingDataStream(QuicStreamId id) OVERRIDE {
141 return new TestStream(id, this);
144 bool IsClosedStream(QuicStreamId id) {
145 return QuicSession::IsClosedStream(id);
148 QuicDataStream* GetIncomingDataStream(QuicStreamId stream_id) {
149 return QuicSession::GetIncomingDataStream(stream_id);
152 virtual QuicConsumedData WritevData(
154 const IOVector& data,
155 QuicStreamOffset offset,
157 FecProtection fec_protection,
158 QuicAckNotifier::DelegateInterface* ack_notifier_delegate) OVERRIDE {
159 // Always consumes everything.
160 if (writev_consumes_all_data_) {
161 return QuicConsumedData(data.TotalBufferSize(), fin);
163 return QuicSession::WritevData(id, data, offset, fin, fec_protection,
164 ack_notifier_delegate);
168 void set_writev_consumes_all_data(bool val) {
169 writev_consumes_all_data_ = val;
172 QuicConsumedData SendStreamData(QuicStreamId id) {
173 return WritevData(id, IOVector(), 0, true, MAY_FEC_PROTECT, NULL);
176 using QuicSession::PostProcessAfterData;
179 StrictMock<TestCryptoStream> crypto_stream_;
181 bool writev_consumes_all_data_;
184 class QuicSessionTest : public ::testing::TestWithParam<QuicVersion> {
187 : connection_(new MockConnection(true, SupportedVersions(GetParam()))),
188 session_(connection_) {
189 session_.config()->SetInitialFlowControlWindowToSend(
190 kInitialSessionFlowControlWindowForTest);
191 session_.config()->SetInitialStreamFlowControlWindowToSend(
192 kInitialStreamFlowControlWindowForTest);
193 session_.config()->SetInitialSessionFlowControlWindowToSend(
194 kInitialSessionFlowControlWindowForTest);
195 headers_[":host"] = "www.google.com";
196 headers_[":path"] = "/index.hml";
197 headers_[":scheme"] = "http";
199 "__utma=208381060.1228362404.1372200928.1372200928.1372200928.1; "
201 "GX=DQAAAOEAAACWJYdewdE9rIrW6qw3PtVi2-d729qaa-74KqOsM1NVQblK4VhX"
202 "hoALMsy6HOdDad2Sz0flUByv7etmo3mLMidGrBoljqO9hSVA40SLqpG_iuKKSHX"
203 "RW3Np4bq0F0SDGDNsW0DSmTS9ufMRrlpARJDS7qAI6M3bghqJp4eABKZiRqebHT"
204 "pMU-RXvTI5D5oCF1vYxYofH_l1Kviuiy3oQ1kS1enqWgbhJ2t61_SNdv-1XJIS0"
205 "O3YeHLmVCs62O6zp89QwakfAWK9d3IDQvVSJzCQsvxvNIvaZFa567MawWlXg0Rh"
206 "1zFMi5vzcns38-8_Sns; "
207 "GA=v*2%2Fmem*57968640*47239936%2Fmem*57968640*47114716%2Fno-nm-"
208 "yj*15%2Fno-cc-yj*5%2Fpc-ch*133685%2Fpc-s-cr*133947%2Fpc-s-t*1339"
209 "47%2Fno-nm-yj*4%2Fno-cc-yj*1%2Fceft-as*1%2Fceft-nqas*0%2Fad-ra-c"
210 "v_p%2Fad-nr-cv_p-f*1%2Fad-v-cv_p*859%2Fad-ns-cv_p-f*1%2Ffn-v-ad%"
211 "2Fpc-t*250%2Fpc-cm*461%2Fpc-s-cr*722%2Fpc-s-t*722%2Fau_p*4"
212 "SICAID=AJKiYcHdKgxum7KMXG0ei2t1-W4OD1uW-ecNsCqC0wDuAXiDGIcT_HA2o1"
213 "3Rs1UKCuBAF9g8rWNOFbxt8PSNSHFuIhOo2t6bJAVpCsMU5Laa6lewuTMYI8MzdQP"
214 "ARHKyW-koxuhMZHUnGBJAM1gJODe0cATO_KGoX4pbbFxxJ5IicRxOrWK_5rU3cdy6"
215 "edlR9FsEdH6iujMcHkbE5l18ehJDwTWmBKBzVD87naobhMMrF6VvnDGxQVGp9Ir_b"
216 "Rgj3RWUoPumQVCxtSOBdX0GlJOEcDTNCzQIm9BSfetog_eP_TfYubKudt5eMsXmN6"
217 "QnyXHeGeK2UINUzJ-D30AFcpqYgH9_1BvYSpi7fc7_ydBU8TaD8ZRxvtnzXqj0RfG"
218 "tuHghmv3aD-uzSYJ75XDdzKdizZ86IG6Fbn1XFhYZM-fbHhm3mVEXnyRW4ZuNOLFk"
219 "Fas6LMcVC6Q8QLlHYbXBpdNFuGbuZGUnav5C-2I_-46lL0NGg3GewxGKGHvHEfoyn"
220 "EFFlEYHsBQ98rXImL8ySDycdLEFvBPdtctPmWCfTxwmoSMLHU2SCVDhbqMWU5b0yr"
221 "JBCScs_ejbKaqBDoB7ZGxTvqlrB__2ZmnHHjCr8RgMRtKNtIeuZAo ";
224 void CheckClosedStreams() {
225 for (int i = kCryptoStreamId; i < 100; i++) {
226 if (closed_streams_.count(i) == 0) {
227 EXPECT_FALSE(session_.IsClosedStream(i)) << " stream id: " << i;
229 EXPECT_TRUE(session_.IsClosedStream(i)) << " stream id: " << i;
234 void CloseStream(QuicStreamId id) {
235 session_.CloseStream(id);
236 closed_streams_.insert(id);
239 QuicVersion version() const { return connection_->version(); }
241 MockConnection* connection_;
242 TestSession session_;
243 set<QuicStreamId> closed_streams_;
244 SpdyHeaderBlock headers_;
247 INSTANTIATE_TEST_CASE_P(Tests, QuicSessionTest,
248 ::testing::ValuesIn(QuicSupportedVersions()));
250 TEST_P(QuicSessionTest, PeerAddress) {
251 EXPECT_EQ(IPEndPoint(Loopback4(), kTestPort), session_.peer_address());
254 TEST_P(QuicSessionTest, IsCryptoHandshakeConfirmed) {
255 EXPECT_FALSE(session_.IsCryptoHandshakeConfirmed());
256 CryptoHandshakeMessage message;
257 session_.GetCryptoStream()->OnHandshakeMessage(message);
258 EXPECT_TRUE(session_.IsCryptoHandshakeConfirmed());
261 TEST_P(QuicSessionTest, IsClosedStreamDefault) {
262 // Ensure that no streams are initially closed.
263 for (int i = kCryptoStreamId; i < 100; i++) {
264 EXPECT_FALSE(session_.IsClosedStream(i)) << "stream id: " << i;
268 TEST_P(QuicSessionTest, ImplicitlyCreatedStreams) {
269 ASSERT_TRUE(session_.GetIncomingDataStream(7) != NULL);
270 // Both 3 and 5 should be implicitly created.
271 EXPECT_FALSE(session_.IsClosedStream(3));
272 EXPECT_FALSE(session_.IsClosedStream(5));
273 ASSERT_TRUE(session_.GetIncomingDataStream(5) != NULL);
274 ASSERT_TRUE(session_.GetIncomingDataStream(3) != NULL);
277 TEST_P(QuicSessionTest, IsClosedStreamLocallyCreated) {
278 TestStream* stream2 = session_.CreateOutgoingDataStream();
279 EXPECT_EQ(2u, stream2->id());
280 TestStream* stream4 = session_.CreateOutgoingDataStream();
281 EXPECT_EQ(4u, stream4->id());
283 CheckClosedStreams();
285 CheckClosedStreams();
287 CheckClosedStreams();
290 TEST_P(QuicSessionTest, IsClosedStreamPeerCreated) {
291 QuicStreamId stream_id1 = kClientDataStreamId1;
292 QuicStreamId stream_id2 = kClientDataStreamId2;
293 QuicDataStream* stream1 = session_.GetIncomingDataStream(stream_id1);
294 QuicDataStreamPeer::SetHeadersDecompressed(stream1, true);
295 QuicDataStream* stream2 = session_.GetIncomingDataStream(stream_id2);
296 QuicDataStreamPeer::SetHeadersDecompressed(stream2, true);
298 CheckClosedStreams();
299 CloseStream(stream_id1);
300 CheckClosedStreams();
301 CloseStream(stream_id2);
302 // Create a stream explicitly, and another implicitly.
303 QuicDataStream* stream3 = session_.GetIncomingDataStream(stream_id2 + 4);
304 QuicDataStreamPeer::SetHeadersDecompressed(stream3, true);
305 CheckClosedStreams();
306 // Close one, but make sure the other is still not closed
307 CloseStream(stream3->id());
308 CheckClosedStreams();
311 TEST_P(QuicSessionTest, StreamIdTooLarge) {
312 QuicStreamId stream_id = kClientDataStreamId1;
313 session_.GetIncomingDataStream(stream_id);
314 EXPECT_CALL(*connection_, SendConnectionClose(QUIC_INVALID_STREAM_ID));
315 session_.GetIncomingDataStream(stream_id + kMaxStreamIdDelta + 2);
318 TEST_P(QuicSessionTest, DecompressionError) {
319 QuicHeadersStream* stream = QuicSessionPeer::GetHeadersStream(&session_);
320 const unsigned char data[] = {
321 0x80, 0x03, 0x00, 0x01, // SPDY/3 SYN_STREAM frame
322 0x00, 0x00, 0x00, 0x25, // flags/length
323 0x00, 0x00, 0x00, 0x05, // stream id
324 0x00, 0x00, 0x00, 0x00, // associated stream id
326 'a', 'b', 'c', 'd' // invalid compressed data
328 EXPECT_CALL(*connection_,
329 SendConnectionCloseWithDetails(QUIC_INVALID_HEADERS_STREAM_DATA,
330 "SPDY framing error."));
331 stream->ProcessRawData(reinterpret_cast<const char*>(data),
335 TEST_P(QuicSessionTest, DebugDFatalIfMarkingClosedStreamWriteBlocked) {
336 TestStream* stream2 = session_.CreateOutgoingDataStream();
338 stream2->Reset(QUIC_BAD_APPLICATION_PAYLOAD);
339 // TODO(rtenneti): enable when chromium supports EXPECT_DEBUG_DFATAL.
341 QuicStreamId kClosedStreamId = stream2->id();
343 session_.MarkWriteBlocked(kClosedStreamId, kSomeMiddlePriority),
344 "Marking unknown stream 2 blocked.");
348 TEST_P(QuicSessionTest, DebugDFatalIfMarkWriteBlockedCalledWithWrongPriority) {
349 const QuicPriority kDifferentPriority = 0;
351 TestStream* stream2 = session_.CreateOutgoingDataStream();
352 EXPECT_NE(kDifferentPriority, stream2->EffectivePriority());
353 // TODO(rtenneti): enable when chromium supports EXPECT_DEBUG_DFATAL.
356 session_.MarkWriteBlocked(stream2->id(), kDifferentPriority),
357 "Priorities do not match. Got: 0 Expected: 3");
361 TEST_P(QuicSessionTest, OnCanWrite) {
362 TestStream* stream2 = session_.CreateOutgoingDataStream();
363 TestStream* stream4 = session_.CreateOutgoingDataStream();
364 TestStream* stream6 = session_.CreateOutgoingDataStream();
366 session_.MarkWriteBlocked(stream2->id(), kSomeMiddlePriority);
367 session_.MarkWriteBlocked(stream6->id(), kSomeMiddlePriority);
368 session_.MarkWriteBlocked(stream4->id(), kSomeMiddlePriority);
371 StreamBlocker stream2_blocker(&session_, stream2->id());
372 // Reregister, to test the loop limit.
373 EXPECT_CALL(*stream2, OnCanWrite())
374 .WillOnce(Invoke(&stream2_blocker, &StreamBlocker::MarkWriteBlocked));
375 EXPECT_CALL(*stream6, OnCanWrite());
376 EXPECT_CALL(*stream4, OnCanWrite());
377 session_.OnCanWrite();
378 EXPECT_TRUE(session_.WillingAndAbleToWrite());
381 TEST_P(QuicSessionTest, OnCanWriteBundlesStreams) {
382 // Drive congestion control manually.
383 MockSendAlgorithm* send_algorithm = new StrictMock<MockSendAlgorithm>;
384 QuicConnectionPeer::SetSendAlgorithm(session_.connection(), send_algorithm);
386 TestStream* stream2 = session_.CreateOutgoingDataStream();
387 TestStream* stream4 = session_.CreateOutgoingDataStream();
388 TestStream* stream6 = session_.CreateOutgoingDataStream();
390 session_.MarkWriteBlocked(stream2->id(), kSomeMiddlePriority);
391 session_.MarkWriteBlocked(stream6->id(), kSomeMiddlePriority);
392 session_.MarkWriteBlocked(stream4->id(), kSomeMiddlePriority);
394 EXPECT_CALL(*send_algorithm, TimeUntilSend(_, _, _)).WillRepeatedly(
395 Return(QuicTime::Delta::Zero()));
396 EXPECT_CALL(*send_algorithm, GetCongestionWindow())
397 .WillOnce(Return(kMaxPacketSize * 10));
398 EXPECT_CALL(*stream2, OnCanWrite())
399 .WillOnce(IgnoreResult(Invoke(CreateFunctor(
400 &session_, &TestSession::SendStreamData, stream2->id()))));
401 EXPECT_CALL(*stream4, OnCanWrite())
402 .WillOnce(IgnoreResult(Invoke(CreateFunctor(
403 &session_, &TestSession::SendStreamData, stream4->id()))));
404 EXPECT_CALL(*stream6, OnCanWrite())
405 .WillOnce(IgnoreResult(Invoke(CreateFunctor(
406 &session_, &TestSession::SendStreamData, stream6->id()))));
408 // Expect that we only send one packet, the writes from different streams
409 // should be bundled together.
410 MockPacketWriter* writer =
411 static_cast<MockPacketWriter*>(
412 QuicConnectionPeer::GetWriter(session_.connection()));
413 EXPECT_CALL(*writer, WritePacket(_, _, _, _)).WillOnce(
414 Return(WriteResult(WRITE_STATUS_OK, 0)));
415 EXPECT_CALL(*send_algorithm, OnPacketSent(_, _, _, _, _)).Times(1);
416 session_.OnCanWrite();
417 EXPECT_FALSE(session_.WillingAndAbleToWrite());
420 TEST_P(QuicSessionTest, OnCanWriteCongestionControlBlocks) {
423 // Drive congestion control manually.
424 MockSendAlgorithm* send_algorithm = new StrictMock<MockSendAlgorithm>;
425 QuicConnectionPeer::SetSendAlgorithm(session_.connection(), send_algorithm);
427 TestStream* stream2 = session_.CreateOutgoingDataStream();
428 TestStream* stream4 = session_.CreateOutgoingDataStream();
429 TestStream* stream6 = session_.CreateOutgoingDataStream();
431 session_.MarkWriteBlocked(stream2->id(), kSomeMiddlePriority);
432 session_.MarkWriteBlocked(stream6->id(), kSomeMiddlePriority);
433 session_.MarkWriteBlocked(stream4->id(), kSomeMiddlePriority);
435 StreamBlocker stream2_blocker(&session_, stream2->id());
436 EXPECT_CALL(*send_algorithm, TimeUntilSend(_, _, _)).WillOnce(Return(
437 QuicTime::Delta::Zero()));
438 EXPECT_CALL(*stream2, OnCanWrite());
439 EXPECT_CALL(*send_algorithm, TimeUntilSend(_, _, _)).WillOnce(Return(
440 QuicTime::Delta::Zero()));
441 EXPECT_CALL(*stream6, OnCanWrite());
442 EXPECT_CALL(*send_algorithm, TimeUntilSend(_, _, _)).WillOnce(Return(
443 QuicTime::Delta::Infinite()));
444 // stream4->OnCanWrite is not called.
446 session_.OnCanWrite();
447 EXPECT_TRUE(session_.WillingAndAbleToWrite());
449 // Still congestion-control blocked.
450 EXPECT_CALL(*send_algorithm, TimeUntilSend(_, _, _)).WillOnce(Return(
451 QuicTime::Delta::Infinite()));
452 session_.OnCanWrite();
453 EXPECT_TRUE(session_.WillingAndAbleToWrite());
455 // stream4->OnCanWrite is called once the connection stops being
456 // congestion-control blocked.
457 EXPECT_CALL(*send_algorithm, TimeUntilSend(_, _, _)).WillOnce(Return(
458 QuicTime::Delta::Zero()));
459 EXPECT_CALL(*stream4, OnCanWrite());
460 session_.OnCanWrite();
461 EXPECT_FALSE(session_.WillingAndAbleToWrite());
464 TEST_P(QuicSessionTest, BufferedHandshake) {
465 EXPECT_FALSE(session_.HasPendingHandshake()); // Default value.
467 // Test that blocking other streams does not change our status.
468 TestStream* stream2 = session_.CreateOutgoingDataStream();
469 StreamBlocker stream2_blocker(&session_, stream2->id());
470 stream2_blocker.MarkWriteBlocked();
471 EXPECT_FALSE(session_.HasPendingHandshake());
473 TestStream* stream3 = session_.CreateOutgoingDataStream();
474 StreamBlocker stream3_blocker(&session_, stream3->id());
475 stream3_blocker.MarkWriteBlocked();
476 EXPECT_FALSE(session_.HasPendingHandshake());
478 // Blocking (due to buffering of) the Crypto stream is detected.
479 session_.MarkWriteBlocked(kCryptoStreamId, kHighestPriority);
480 EXPECT_TRUE(session_.HasPendingHandshake());
482 TestStream* stream4 = session_.CreateOutgoingDataStream();
483 StreamBlocker stream4_blocker(&session_, stream4->id());
484 stream4_blocker.MarkWriteBlocked();
485 EXPECT_TRUE(session_.HasPendingHandshake());
488 // Force most streams to re-register, which is common scenario when we block
489 // the Crypto stream, and only the crypto stream can "really" write.
491 // Due to prioritization, we *should* be asked to write the crypto stream
493 // Don't re-register the crypto stream (which signals complete writing).
494 TestCryptoStream* crypto_stream = session_.GetCryptoStream();
495 EXPECT_CALL(*crypto_stream, OnCanWrite());
497 // Re-register all other streams, to show they weren't able to proceed.
498 EXPECT_CALL(*stream2, OnCanWrite())
499 .WillOnce(Invoke(&stream2_blocker, &StreamBlocker::MarkWriteBlocked));
500 EXPECT_CALL(*stream3, OnCanWrite())
501 .WillOnce(Invoke(&stream3_blocker, &StreamBlocker::MarkWriteBlocked));
502 EXPECT_CALL(*stream4, OnCanWrite())
503 .WillOnce(Invoke(&stream4_blocker, &StreamBlocker::MarkWriteBlocked));
505 session_.OnCanWrite();
506 EXPECT_TRUE(session_.WillingAndAbleToWrite());
507 EXPECT_FALSE(session_.HasPendingHandshake()); // Crypto stream wrote.
510 TEST_P(QuicSessionTest, OnCanWriteWithClosedStream) {
511 TestStream* stream2 = session_.CreateOutgoingDataStream();
512 TestStream* stream4 = session_.CreateOutgoingDataStream();
513 TestStream* stream6 = session_.CreateOutgoingDataStream();
515 session_.MarkWriteBlocked(stream2->id(), kSomeMiddlePriority);
516 session_.MarkWriteBlocked(stream6->id(), kSomeMiddlePriority);
517 session_.MarkWriteBlocked(stream4->id(), kSomeMiddlePriority);
518 CloseStream(stream6->id());
521 EXPECT_CALL(*stream2, OnCanWrite());
522 EXPECT_CALL(*stream4, OnCanWrite());
523 session_.OnCanWrite();
524 EXPECT_FALSE(session_.WillingAndAbleToWrite());
527 TEST_P(QuicSessionTest, OnCanWriteLimitsNumWritesIfFlowControlBlocked) {
528 if (version() < QUIC_VERSION_19) {
532 ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2,
534 // Ensure connection level flow control blockage.
535 QuicFlowControllerPeer::SetSendWindowOffset(session_.flow_controller(), 0);
536 EXPECT_TRUE(session_.flow_controller()->IsBlocked());
538 // Mark the crypto and headers streams as write blocked, we expect them to be
539 // allowed to write later.
540 session_.MarkWriteBlocked(kCryptoStreamId, kHighestPriority);
541 session_.MarkWriteBlocked(kHeadersStreamId, kHighestPriority);
543 // Create a data stream, and although it is write blocked we never expect it
544 // to be allowed to write as we are connection level flow control blocked.
545 TestStream* stream = session_.CreateOutgoingDataStream();
546 session_.MarkWriteBlocked(stream->id(), kSomeMiddlePriority);
547 EXPECT_CALL(*stream, OnCanWrite()).Times(0);
549 // The crypto and headers streams should be called even though we are
550 // connection flow control blocked.
551 TestCryptoStream* crypto_stream = session_.GetCryptoStream();
552 EXPECT_CALL(*crypto_stream, OnCanWrite()).Times(1);
553 TestHeadersStream* headers_stream = new TestHeadersStream(&session_);
554 QuicSessionPeer::SetHeadersStream(&session_, headers_stream);
555 EXPECT_CALL(*headers_stream, OnCanWrite()).Times(1);
557 session_.OnCanWrite();
558 EXPECT_FALSE(session_.WillingAndAbleToWrite());
561 TEST_P(QuicSessionTest, SendGoAway) {
562 EXPECT_CALL(*connection_,
563 SendGoAway(QUIC_PEER_GOING_AWAY, 0u, "Going Away."));
564 session_.SendGoAway(QUIC_PEER_GOING_AWAY, "Going Away.");
565 EXPECT_TRUE(session_.goaway_sent());
567 EXPECT_CALL(*connection_,
568 SendRstStream(3u, QUIC_STREAM_PEER_GOING_AWAY, 0)).Times(0);
569 EXPECT_TRUE(session_.GetIncomingDataStream(3u));
572 TEST_P(QuicSessionTest, DoNotSendGoAwayTwice) {
573 EXPECT_CALL(*connection_,
574 SendGoAway(QUIC_PEER_GOING_AWAY, 0u, "Going Away.")).Times(1);
575 session_.SendGoAway(QUIC_PEER_GOING_AWAY, "Going Away.");
576 EXPECT_TRUE(session_.goaway_sent());
577 session_.SendGoAway(QUIC_PEER_GOING_AWAY, "Going Away.");
580 TEST_P(QuicSessionTest, IncreasedTimeoutAfterCryptoHandshake) {
581 EXPECT_EQ(kDefaultInitialTimeoutSecs,
582 QuicConnectionPeer::GetNetworkTimeout(connection_).ToSeconds());
583 CryptoHandshakeMessage msg;
584 session_.GetCryptoStream()->OnHandshakeMessage(msg);
585 EXPECT_EQ(kDefaultTimeoutSecs,
586 QuicConnectionPeer::GetNetworkTimeout(connection_).ToSeconds());
589 TEST_P(QuicSessionTest, RstStreamBeforeHeadersDecompressed) {
590 // Send two bytes of payload.
591 QuicStreamFrame data1(kClientDataStreamId1, false, 0, MakeIOVector("HT"));
592 vector<QuicStreamFrame> frames;
593 frames.push_back(data1);
594 session_.OnStreamFrames(frames);
595 EXPECT_EQ(1u, session_.GetNumOpenStreams());
597 QuicRstStreamFrame rst1(kClientDataStreamId1, QUIC_STREAM_NO_ERROR, 0);
598 session_.OnRstStream(rst1);
599 EXPECT_EQ(0u, session_.GetNumOpenStreams());
600 // Connection should remain alive.
601 EXPECT_TRUE(connection_->connected());
604 TEST_P(QuicSessionTest, MultipleRstStreamsCauseSingleConnectionClose) {
605 // If multiple invalid reset stream frames arrive in a single packet, this
606 // should trigger a connection close. However there is no need to send
607 // multiple connection close frames.
609 // Create valid stream.
610 QuicStreamFrame data1(kClientDataStreamId1, false, 0, MakeIOVector("HT"));
611 vector<QuicStreamFrame> frames;
612 frames.push_back(data1);
613 session_.OnStreamFrames(frames);
614 EXPECT_EQ(1u, session_.GetNumOpenStreams());
616 // Process first invalid stream reset, resulting in the connection being
618 EXPECT_CALL(*connection_, SendConnectionClose(QUIC_INVALID_STREAM_ID))
620 QuicStreamId kLargeInvalidStreamId = 99999999;
621 QuicRstStreamFrame rst1(kLargeInvalidStreamId, QUIC_STREAM_NO_ERROR, 0);
622 session_.OnRstStream(rst1);
623 QuicConnectionPeer::CloseConnection(connection_);
625 // Processing of second invalid stream reset should not result in the
626 // connection being closed for a second time.
627 QuicRstStreamFrame rst2(kLargeInvalidStreamId, QUIC_STREAM_NO_ERROR, 0);
628 session_.OnRstStream(rst2);
631 TEST_P(QuicSessionTest, HandshakeUnblocksFlowControlBlockedStream) {
632 // Test that if a stream is flow control blocked, then on receipt of the SHLO
633 // containing a suitable send window offset, the stream becomes unblocked.
634 if (version() < QUIC_VERSION_17) {
637 ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true);
639 // Ensure that Writev consumes all the data it is given (simulate no socket
641 session_.set_writev_consumes_all_data(true);
643 // Create a stream, and send enough data to make it flow control blocked.
644 TestStream* stream2 = session_.CreateOutgoingDataStream();
645 string body(kDefaultFlowControlSendWindow, '.');
646 EXPECT_FALSE(stream2->flow_controller()->IsBlocked());
647 stream2->SendBody(body, false);
648 EXPECT_TRUE(stream2->flow_controller()->IsBlocked());
650 // Now complete the crypto handshake, resulting in an increased flow control
652 CryptoHandshakeMessage msg;
653 session_.GetCryptoStream()->OnHandshakeMessage(msg);
655 // Stream is now unblocked.
656 EXPECT_FALSE(stream2->flow_controller()->IsBlocked());
659 TEST_P(QuicSessionTest, InvalidFlowControlWindowInHandshake) {
660 // TODO(rjshade): Remove this test when removing QUIC_VERSION_19.
661 // Test that receipt of an invalid (< default) flow control window from
662 // the peer results in the connection being torn down.
663 if (version() <= QUIC_VERSION_16 || version() > QUIC_VERSION_19) {
666 ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true);
668 uint32 kInvalidWindow = kDefaultFlowControlSendWindow - 1;
669 QuicConfigPeer::SetReceivedInitialFlowControlWindow(session_.config(),
672 EXPECT_CALL(*connection_,
673 SendConnectionClose(QUIC_FLOW_CONTROL_INVALID_WINDOW)).Times(2);
674 session_.OnConfigNegotiated();
677 TEST_P(QuicSessionTest, InvalidStreamFlowControlWindowInHandshake) {
678 // Test that receipt of an invalid (< default) stream flow control window from
679 // the peer results in the connection being torn down.
680 if (version() <= QUIC_VERSION_19) {
683 ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true);
685 uint32 kInvalidWindow = kDefaultFlowControlSendWindow - 1;
686 QuicConfigPeer::SetReceivedInitialStreamFlowControlWindow(session_.config(),
689 EXPECT_CALL(*connection_,
690 SendConnectionClose(QUIC_FLOW_CONTROL_INVALID_WINDOW));
691 session_.OnConfigNegotiated();
694 TEST_P(QuicSessionTest, InvalidSessionFlowControlWindowInHandshake) {
695 // Test that receipt of an invalid (< default) session flow control window
696 // from the peer results in the connection being torn down.
697 if (version() <= QUIC_VERSION_19) {
700 ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true);
702 uint32 kInvalidWindow = kDefaultFlowControlSendWindow - 1;
703 QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow(session_.config(),
706 EXPECT_CALL(*connection_,
707 SendConnectionClose(QUIC_FLOW_CONTROL_INVALID_WINDOW));
708 session_.OnConfigNegotiated();
711 TEST_P(QuicSessionTest, ConnectionFlowControlAccountingRstOutOfOrder) {
712 if (version() < QUIC_VERSION_19) {
716 ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true);
717 ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2,
719 // Test that when we receive an out of order stream RST we correctly adjust
720 // our connection level flow control receive window.
721 // On close, the stream should mark as consumed all bytes between the highest
722 // byte consumed so far and the final byte offset from the RST frame.
723 TestStream* stream = session_.CreateOutgoingDataStream();
725 const QuicStreamOffset kByteOffset =
726 1 + kInitialSessionFlowControlWindowForTest / 2;
728 // Expect no stream WINDOW_UPDATE frames, as stream read side closed.
729 EXPECT_CALL(*connection_, SendWindowUpdate(stream->id(), _)).Times(0);
730 // We do expect a connection level WINDOW_UPDATE when the stream is reset.
731 EXPECT_CALL(*connection_,
732 SendWindowUpdate(0, kInitialSessionFlowControlWindowForTest +
733 kByteOffset)).Times(1);
735 QuicRstStreamFrame rst_frame(stream->id(), QUIC_STREAM_CANCELLED,
737 session_.OnRstStream(rst_frame);
738 session_.PostProcessAfterData();
739 EXPECT_EQ(kByteOffset, session_.flow_controller()->bytes_consumed());
742 TEST_P(QuicSessionTest, ConnectionFlowControlAccountingFinAndLocalReset) {
743 if (version() < QUIC_VERSION_19) {
747 ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true);
748 ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2,
750 // Test the situation where we receive a FIN on a stream, and before we fully
751 // consume all the data from the sequencer buffer we locally RST the stream.
752 // The bytes between highest consumed byte, and the final byte offset that we
753 // determined when the FIN arrived, should be marked as consumed at the
754 // connection level flow controller when the stream is reset.
755 TestStream* stream = session_.CreateOutgoingDataStream();
757 const QuicStreamOffset kByteOffset =
758 1 + kInitialSessionFlowControlWindowForTest / 2;
759 QuicStreamFrame frame(stream->id(), true, kByteOffset, IOVector());
760 vector<QuicStreamFrame> frames;
761 frames.push_back(frame);
762 session_.OnStreamFrames(frames);
763 session_.PostProcessAfterData();
765 EXPECT_EQ(0u, stream->flow_controller()->bytes_consumed());
766 EXPECT_EQ(kByteOffset,
767 stream->flow_controller()->highest_received_byte_offset());
769 // We only expect to see a connection WINDOW_UPDATE when talking
770 // QUIC_VERSION_19, as in this case both stream and session flow control
771 // windows are the same size. In later versions we will not see a connection
772 // level WINDOW_UPDATE when exhausting a stream, as the stream flow control
773 // limit is much lower than the connection flow control limit.
774 if (version() == QUIC_VERSION_19) {
775 // Expect no stream WINDOW_UPDATE frames, as stream read side closed.
776 EXPECT_CALL(*connection_, SendWindowUpdate(stream->id(), _)).Times(0);
777 // We do expect a connection level WINDOW_UPDATE when the stream is reset.
778 EXPECT_CALL(*connection_,
779 SendWindowUpdate(0, kInitialSessionFlowControlWindowForTest +
780 kByteOffset)).Times(1);
783 // Reset stream locally.
784 stream->Reset(QUIC_STREAM_CANCELLED);
785 EXPECT_EQ(kByteOffset, session_.flow_controller()->bytes_consumed());
788 TEST_P(QuicSessionTest, ConnectionFlowControlAccountingFinAfterRst) {
789 // Test that when we RST the stream (and tear down stream state), and then
790 // receive a FIN from the peer, we correctly adjust our connection level flow
791 // control receive window.
792 if (version() < QUIC_VERSION_19) {
796 ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true);
797 ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2,
799 // Connection starts with some non-zero highest received byte offset,
800 // due to other active streams.
801 const uint64 kInitialConnectionBytesConsumed = 567;
802 const uint64 kInitialConnectionHighestReceivedOffset = 1234;
803 EXPECT_LT(kInitialConnectionBytesConsumed,
804 kInitialConnectionHighestReceivedOffset);
805 session_.flow_controller()->UpdateHighestReceivedOffset(
806 kInitialConnectionHighestReceivedOffset);
807 session_.flow_controller()->AddBytesConsumed(kInitialConnectionBytesConsumed);
809 // Reset our stream: this results in the stream being closed locally.
810 TestStream* stream = session_.CreateOutgoingDataStream();
811 stream->Reset(QUIC_STREAM_CANCELLED);
813 // Now receive a response from the peer with a FIN. We should handle this by
814 // adjusting the connection level flow control receive window to take into
815 // account the total number of bytes sent by the peer.
816 const QuicStreamOffset kByteOffset = 5678;
817 string body = "hello";
818 IOVector data = MakeIOVector(body);
819 QuicStreamFrame frame(stream->id(), true, kByteOffset, data);
820 vector<QuicStreamFrame> frames;
821 frames.push_back(frame);
822 session_.OnStreamFrames(frames);
824 QuicStreamOffset total_stream_bytes_sent_by_peer =
825 kByteOffset + body.length();
826 EXPECT_EQ(kInitialConnectionBytesConsumed + total_stream_bytes_sent_by_peer,
827 session_.flow_controller()->bytes_consumed());
829 kInitialConnectionHighestReceivedOffset + total_stream_bytes_sent_by_peer,
830 session_.flow_controller()->highest_received_byte_offset());
833 TEST_P(QuicSessionTest, ConnectionFlowControlAccountingRstAfterRst) {
834 // Test that when we RST the stream (and tear down stream state), and then
835 // receive a RST from the peer, we correctly adjust our connection level flow
836 // control receive window.
837 if (version() < QUIC_VERSION_19) {
841 ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true);
842 ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2,
844 // Connection starts with some non-zero highest received byte offset,
845 // due to other active streams.
846 const uint64 kInitialConnectionBytesConsumed = 567;
847 const uint64 kInitialConnectionHighestReceivedOffset = 1234;
848 EXPECT_LT(kInitialConnectionBytesConsumed,
849 kInitialConnectionHighestReceivedOffset);
850 session_.flow_controller()->UpdateHighestReceivedOffset(
851 kInitialConnectionHighestReceivedOffset);
852 session_.flow_controller()->AddBytesConsumed(kInitialConnectionBytesConsumed);
854 // Reset our stream: this results in the stream being closed locally.
855 TestStream* stream = session_.CreateOutgoingDataStream();
856 stream->Reset(QUIC_STREAM_CANCELLED);
858 // Now receive a RST from the peer. We should handle this by adjusting the
859 // connection level flow control receive window to take into account the total
860 // number of bytes sent by the peer.
861 const QuicStreamOffset kByteOffset = 5678;
862 QuicRstStreamFrame rst_frame(stream->id(), QUIC_STREAM_CANCELLED,
864 session_.OnRstStream(rst_frame);
866 EXPECT_EQ(kInitialConnectionBytesConsumed + kByteOffset,
867 session_.flow_controller()->bytes_consumed());
868 EXPECT_EQ(kInitialConnectionHighestReceivedOffset + kByteOffset,
869 session_.flow_controller()->highest_received_byte_offset());
872 TEST_P(QuicSessionTest, FlowControlWithInvalidFinalOffset) {
873 // Test that if we receive a stream RST with a highest byte offset that
874 // violates flow control, that we close the connection.
875 if (version() < QUIC_VERSION_17) {
878 ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true);
879 ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2,
882 const uint64 kLargeOffset = kInitialSessionFlowControlWindowForTest + 1;
883 EXPECT_CALL(*connection_,
884 SendConnectionClose(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA))
887 // Check that stream frame + FIN results in connection close.
888 TestStream* stream = session_.CreateOutgoingDataStream();
889 stream->Reset(QUIC_STREAM_CANCELLED);
890 QuicStreamFrame frame(stream->id(), true, kLargeOffset, IOVector());
891 vector<QuicStreamFrame> frames;
892 frames.push_back(frame);
893 session_.OnStreamFrames(frames);
895 // Check that RST results in connection close.
896 QuicRstStreamFrame rst_frame(stream->id(), QUIC_STREAM_CANCELLED,
898 session_.OnRstStream(rst_frame);
901 TEST_P(QuicSessionTest, VersionNegotiationDisablesFlowControl) {
902 if (version() < QUIC_VERSION_19) {
906 ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true);
907 ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2,
909 // Test that after successful version negotiation, flow control is disabled
910 // appropriately at both the connection and stream level.
912 // Initially both stream and connection flow control are enabled.
913 TestStream* stream = session_.CreateOutgoingDataStream();
914 EXPECT_TRUE(stream->flow_controller()->IsEnabled());
915 EXPECT_TRUE(session_.flow_controller()->IsEnabled());
917 // Version 17 implies that stream flow control is enabled, but connection
918 // level is disabled.
919 session_.OnSuccessfulVersionNegotiation(QUIC_VERSION_17);
920 EXPECT_FALSE(session_.flow_controller()->IsEnabled());
921 EXPECT_TRUE(stream->flow_controller()->IsEnabled());
923 // Version 16 means all flow control is disabled.
924 session_.OnSuccessfulVersionNegotiation(QUIC_VERSION_16);
925 EXPECT_FALSE(session_.flow_controller()->IsEnabled());
926 EXPECT_FALSE(stream->flow_controller()->IsEnabled());