| // 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. |
| |
| #include "net/tools/quic/quic_dispatcher.h" |
| |
| #include <memory> |
| #include <ostream> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/strings/string_piece.h" |
| #include "net/quic/crypto/crypto_handshake.h" |
| #include "net/quic/crypto/quic_crypto_server_config.h" |
| #include "net/quic/crypto/quic_random.h" |
| #include "net/quic/quic_chromium_connection_helper.h" |
| #include "net/quic/quic_crypto_stream.h" |
| #include "net/quic/quic_flags.h" |
| #include "net/quic/quic_utils.h" |
| #include "net/quic/test_tools/crypto_test_utils.h" |
| #include "net/quic/test_tools/quic_test_utils.h" |
| #include "net/tools/epoll_server/epoll_server.h" |
| #include "net/tools/quic/quic_epoll_alarm_factory.h" |
| #include "net/tools/quic/quic_epoll_connection_helper.h" |
| #include "net/tools/quic/quic_packet_writer_wrapper.h" |
| #include "net/tools/quic/quic_simple_server_session_helper.h" |
| #include "net/tools/quic/quic_time_wait_list_manager.h" |
| #include "net/tools/quic/test_tools/mock_quic_time_wait_list_manager.h" |
| #include "net/tools/quic/test_tools/quic_dispatcher_peer.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| using base::StringPiece; |
| using net::EpollServer; |
| using net::test::ConstructEncryptedPacket; |
| using net::test::CryptoTestUtils; |
| using net::test::MockQuicConnection; |
| using net::test::MockQuicConnectionHelper; |
| using net::test::ValueRestore; |
| using std::string; |
| using std::vector; |
| using testing::DoAll; |
| using testing::InSequence; |
| using testing::Invoke; |
| using testing::WithoutArgs; |
| using testing::_; |
| |
| namespace net { |
| namespace test { |
| namespace { |
| |
| class TestQuicSpdyServerSession : public QuicServerSessionBase { |
| public: |
| TestQuicSpdyServerSession(const QuicConfig& config, |
| QuicConnection* connection, |
| const QuicCryptoServerConfig* crypto_config, |
| QuicCompressedCertsCache* compressed_certs_cache) |
| : QuicServerSessionBase(config, |
| connection, |
| nullptr, |
| nullptr, |
| crypto_config, |
| compressed_certs_cache), |
| crypto_stream_(QuicServerSessionBase::GetCryptoStream()) {} |
| ~TestQuicSpdyServerSession() override{}; |
| |
| MOCK_METHOD3(OnConnectionClosed, |
| void(QuicErrorCode error, |
| const string& error_details, |
| ConnectionCloseSource source)); |
| MOCK_METHOD1(CreateIncomingDynamicStream, QuicSpdyStream*(QuicStreamId id)); |
| MOCK_METHOD1(CreateOutgoingDynamicStream, |
| QuicSpdyStream*(SpdyPriority priority)); |
| |
| QuicCryptoServerStreamBase* CreateQuicCryptoServerStream( |
| const QuicCryptoServerConfig* crypto_config, |
| QuicCompressedCertsCache* compressed_certs_cache) override { |
| return new QuicCryptoServerStream( |
| crypto_config, compressed_certs_cache, |
| FLAGS_enable_quic_stateless_reject_support, this); |
| } |
| |
| void SetCryptoStream(QuicCryptoServerStream* crypto_stream) { |
| crypto_stream_ = crypto_stream; |
| } |
| |
| QuicCryptoServerStreamBase* GetCryptoStream() override { |
| return crypto_stream_; |
| } |
| |
| private: |
| QuicCryptoServerStreamBase* crypto_stream_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TestQuicSpdyServerSession); |
| }; |
| |
| class TestDispatcher : public QuicDispatcher { |
| public: |
| TestDispatcher(const QuicConfig& config, |
| const QuicCryptoServerConfig* crypto_config, |
| EpollServer* eps) |
| : QuicDispatcher( |
| config, |
| crypto_config, |
| QuicSupportedVersions(), |
| std::unique_ptr<QuicEpollConnectionHelper>( |
| new QuicEpollConnectionHelper(eps, QuicAllocator::BUFFER_POOL)), |
| std::unique_ptr<QuicServerSessionBase::Helper>( |
| new QuicSimpleServerSessionHelper(QuicRandom::GetInstance())), |
| std::unique_ptr<QuicEpollAlarmFactory>( |
| new QuicEpollAlarmFactory(eps))) {} |
| |
| MOCK_METHOD2(CreateQuicSession, |
| QuicServerSessionBase*(QuicConnectionId connection_id, |
| const IPEndPoint& client_address)); |
| |
| using QuicDispatcher::current_server_address; |
| using QuicDispatcher::current_client_address; |
| }; |
| |
| // A Connection class which unregisters the session from the dispatcher when |
| // sending connection close. |
| // It'd be slightly more realistic to do this from the Session but it would |
| // involve a lot more mocking. |
| class MockServerConnection : public MockQuicConnection { |
| public: |
| MockServerConnection(QuicConnectionId connection_id, |
| MockQuicConnectionHelper* helper, |
| MockAlarmFactory* alarm_factory, |
| QuicDispatcher* dispatcher) |
| : MockQuicConnection(connection_id, |
| helper, |
| alarm_factory, |
| Perspective::IS_SERVER), |
| dispatcher_(dispatcher) {} |
| |
| void UnregisterOnConnectionClosed() { |
| LOG(ERROR) << "Unregistering " << connection_id(); |
| dispatcher_->OnConnectionClosed(connection_id(), QUIC_NO_ERROR, |
| "Unregistering."); |
| } |
| |
| private: |
| QuicDispatcher* dispatcher_; |
| }; |
| |
| QuicServerSessionBase* CreateSession( |
| QuicDispatcher* dispatcher, |
| const QuicConfig& config, |
| QuicConnectionId connection_id, |
| const IPEndPoint& client_address, |
| MockQuicConnectionHelper* helper, |
| MockAlarmFactory* alarm_factory, |
| const QuicCryptoServerConfig* crypto_config, |
| QuicCompressedCertsCache* compressed_certs_cache, |
| TestQuicSpdyServerSession** session) { |
| MockServerConnection* connection = new MockServerConnection( |
| connection_id, helper, alarm_factory, dispatcher); |
| *session = new TestQuicSpdyServerSession(config, connection, crypto_config, |
| compressed_certs_cache); |
| connection->set_visitor(*session); |
| ON_CALL(*connection, CloseConnection(_, _, _)) |
| .WillByDefault(WithoutArgs(Invoke( |
| connection, &MockServerConnection::UnregisterOnConnectionClosed))); |
| EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>((*session)->connection()), |
| ProcessUdpPacket(_, client_address, _)); |
| |
| return *session; |
| } |
| |
| class QuicDispatcherTest : public ::testing::Test { |
| public: |
| QuicDispatcherTest() |
| : helper_(&eps_, QuicAllocator::BUFFER_POOL), |
| alarm_factory_(&eps_), |
| crypto_config_(QuicCryptoServerConfig::TESTING, |
| QuicRandom::GetInstance(), |
| CryptoTestUtils::ProofSourceForTesting()), |
| dispatcher_(config_, &crypto_config_, &eps_), |
| time_wait_list_manager_(nullptr), |
| session1_(nullptr), |
| session2_(nullptr) { |
| dispatcher_.InitializeWithWriter(new QuicDefaultPacketWriter(1)); |
| } |
| |
| ~QuicDispatcherTest() override {} |
| |
| MockQuicConnection* connection1() { |
| return reinterpret_cast<MockQuicConnection*>(session1_->connection()); |
| } |
| |
| MockQuicConnection* connection2() { |
| return reinterpret_cast<MockQuicConnection*>(session2_->connection()); |
| } |
| |
| // Process a packet with an 8 byte connection id, |
| // 6 byte packet number, default path id, and packet number 1, |
| // using the first supported version. |
| void ProcessPacket(IPEndPoint client_address, |
| QuicConnectionId connection_id, |
| bool has_version_flag, |
| bool has_multipath_flag, |
| const string& data) { |
| ProcessPacket(client_address, connection_id, has_version_flag, |
| has_multipath_flag, data, PACKET_8BYTE_CONNECTION_ID, |
| PACKET_6BYTE_PACKET_NUMBER); |
| } |
| |
| // Process a packet with a default path id, and packet number 1, |
| // using the first supported version. |
| void ProcessPacket(IPEndPoint client_address, |
| QuicConnectionId connection_id, |
| bool has_version_flag, |
| bool has_multipath_flag, |
| const string& data, |
| QuicConnectionIdLength connection_id_length, |
| QuicPacketNumberLength packet_number_length) { |
| ProcessPacket(client_address, connection_id, has_version_flag, |
| has_multipath_flag, data, connection_id_length, |
| packet_number_length, kDefaultPathId, 1); |
| } |
| |
| // Process a packet using the first supported version. |
| void ProcessPacket(IPEndPoint client_address, |
| QuicConnectionId connection_id, |
| bool has_version_flag, |
| bool has_multipath_flag, |
| const string& data, |
| QuicConnectionIdLength connection_id_length, |
| QuicPacketNumberLength packet_number_length, |
| QuicPathId path_id, |
| QuicPacketNumber packet_number) { |
| ProcessPacket(client_address, connection_id, has_version_flag, |
| QuicSupportedVersions().front(), data, connection_id_length, |
| packet_number_length, packet_number); |
| } |
| |
| // Processes a packet. |
| void ProcessPacket(IPEndPoint client_address, |
| QuicConnectionId connection_id, |
| bool has_version_flag, |
| QuicVersion version, |
| const string& data, |
| QuicConnectionIdLength connection_id_length, |
| QuicPacketNumberLength packet_number_length, |
| QuicPacketNumber packet_number) { |
| QuicVersionVector versions(SupportedVersions(version)); |
| std::unique_ptr<QuicEncryptedPacket> packet(ConstructEncryptedPacket( |
| connection_id, has_version_flag, false, false, 0, packet_number, data, |
| connection_id_length, packet_number_length, &versions)); |
| std::unique_ptr<QuicReceivedPacket> received_packet( |
| ConstructReceivedPacket(*packet, helper_.GetClock()->Now())); |
| |
| data_ = string(packet->data(), packet->length()); |
| dispatcher_.ProcessPacket(server_address_, client_address, |
| *received_packet); |
| } |
| |
| void ValidatePacket(const QuicEncryptedPacket& packet) { |
| EXPECT_EQ(data_.length(), packet.AsStringPiece().length()); |
| EXPECT_EQ(data_, packet.AsStringPiece()); |
| } |
| |
| void CreateTimeWaitListManager() { |
| time_wait_list_manager_ = |
| new MockTimeWaitListManager(QuicDispatcherPeer::GetWriter(&dispatcher_), |
| &dispatcher_, &helper_, &alarm_factory_); |
| // dispatcher_ takes the ownership of time_wait_list_manager_. |
| QuicDispatcherPeer::SetTimeWaitListManager(&dispatcher_, |
| time_wait_list_manager_); |
| } |
| |
| string SerializeCHLO() { |
| CryptoHandshakeMessage client_hello; |
| client_hello.set_tag(kCHLO); |
| return client_hello.GetSerialized().AsStringPiece().as_string(); |
| } |
| |
| EpollServer eps_; |
| QuicEpollConnectionHelper helper_; |
| MockQuicConnectionHelper mock_helper_; |
| QuicEpollAlarmFactory alarm_factory_; |
| MockAlarmFactory mock_alarm_factory_; |
| QuicConfig config_; |
| QuicCryptoServerConfig crypto_config_; |
| IPEndPoint server_address_; |
| TestDispatcher dispatcher_; |
| MockTimeWaitListManager* time_wait_list_manager_; |
| TestQuicSpdyServerSession* session1_; |
| TestQuicSpdyServerSession* session2_; |
| string data_; |
| }; |
| |
| TEST_F(QuicDispatcherTest, ProcessPackets) { |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| server_address_ = IPEndPoint(net::test::Any4(), 5); |
| |
| EXPECT_CALL(dispatcher_, CreateQuicSession(1, client_address)) |
| .WillOnce(testing::Return(CreateSession( |
| &dispatcher_, config_, 1, client_address, &mock_helper_, |
| &mock_alarm_factory_, &crypto_config_, |
| QuicDispatcherPeer::GetCache(&dispatcher_), &session1_))); |
| ProcessPacket(client_address, 1, true, false, SerializeCHLO()); |
| EXPECT_EQ(client_address, dispatcher_.current_client_address()); |
| EXPECT_EQ(server_address_, dispatcher_.current_server_address()); |
| |
| EXPECT_CALL(dispatcher_, CreateQuicSession(2, client_address)) |
| .WillOnce(testing::Return(CreateSession( |
| &dispatcher_, config_, 2, client_address, &mock_helper_, |
| &mock_alarm_factory_, &crypto_config_, |
| QuicDispatcherPeer::GetCache(&dispatcher_), &session2_))); |
| ProcessPacket(client_address, 2, true, false, SerializeCHLO()); |
| |
| EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()), |
| ProcessUdpPacket(_, _, _)) |
| .Times(1) |
| .WillOnce(testing::WithArgs<2>( |
| Invoke(this, &QuicDispatcherTest::ValidatePacket))); |
| ProcessPacket(client_address, 1, false, false, "data"); |
| } |
| |
| TEST_F(QuicDispatcherTest, StatelessVersionNegotiation) { |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| server_address_ = IPEndPoint(net::test::Any4(), 5); |
| |
| EXPECT_CALL(dispatcher_, CreateQuicSession(1, client_address)).Times(0); |
| QuicVersion version = static_cast<QuicVersion>(QuicVersionMin() - 1); |
| ProcessPacket(client_address, 1, true, version, SerializeCHLO(), |
| PACKET_8BYTE_CONNECTION_ID, PACKET_6BYTE_PACKET_NUMBER, 1); |
| } |
| |
| TEST_F(QuicDispatcherTest, Shutdown) { |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| |
| EXPECT_CALL(dispatcher_, CreateQuicSession(_, client_address)) |
| .WillOnce(testing::Return(CreateSession( |
| &dispatcher_, config_, 1, client_address, &mock_helper_, |
| &mock_alarm_factory_, &crypto_config_, |
| QuicDispatcherPeer::GetCache(&dispatcher_), &session1_))); |
| |
| ProcessPacket(client_address, 1, true, false, SerializeCHLO()); |
| |
| EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()), |
| CloseConnection(QUIC_PEER_GOING_AWAY, _, _)); |
| |
| dispatcher_.Shutdown(); |
| } |
| |
| TEST_F(QuicDispatcherTest, TimeWaitListManager) { |
| CreateTimeWaitListManager(); |
| |
| // Create a new session. |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| QuicConnectionId connection_id = 1; |
| EXPECT_CALL(dispatcher_, CreateQuicSession(connection_id, client_address)) |
| .WillOnce(testing::Return(CreateSession( |
| &dispatcher_, config_, connection_id, client_address, &mock_helper_, |
| &mock_alarm_factory_, &crypto_config_, |
| QuicDispatcherPeer::GetCache(&dispatcher_), &session1_))); |
| ProcessPacket(client_address, connection_id, true, false, SerializeCHLO()); |
| |
| // Close the connection by sending public reset packet. |
| QuicPublicResetPacket packet; |
| packet.public_header.connection_id = connection_id; |
| packet.public_header.reset_flag = true; |
| packet.public_header.version_flag = false; |
| packet.rejected_packet_number = 19191; |
| packet.nonce_proof = 132232; |
| std::unique_ptr<QuicEncryptedPacket> encrypted( |
| QuicFramer::BuildPublicResetPacket(packet)); |
| std::unique_ptr<QuicReceivedPacket> received( |
| ConstructReceivedPacket(*encrypted, helper_.GetClock()->Now())); |
| EXPECT_CALL(*session1_, OnConnectionClosed(QUIC_PUBLIC_RESET, _, |
| ConnectionCloseSource::FROM_PEER)) |
| .Times(1) |
| .WillOnce(WithoutArgs(Invoke( |
| reinterpret_cast<MockServerConnection*>(session1_->connection()), |
| &MockServerConnection::UnregisterOnConnectionClosed))); |
| EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()), |
| ProcessUdpPacket(_, _, _)) |
| .WillOnce( |
| Invoke(reinterpret_cast<MockQuicConnection*>(session1_->connection()), |
| &MockQuicConnection::ReallyProcessUdpPacket)); |
| dispatcher_.ProcessPacket(IPEndPoint(), client_address, *received); |
| EXPECT_TRUE(time_wait_list_manager_->IsConnectionIdInTimeWait(connection_id)); |
| |
| // Dispatcher forwards subsequent packets for this connection_id to the time |
| // wait list manager. |
| EXPECT_CALL(*time_wait_list_manager_, |
| ProcessPacket(_, _, connection_id, _, _)) |
| .Times(1); |
| EXPECT_CALL(*time_wait_list_manager_, AddConnectionIdToTimeWait(_, _, _, _)) |
| .Times(0); |
| ProcessPacket(client_address, connection_id, true, false, "data"); |
| } |
| |
| TEST_F(QuicDispatcherTest, NoVersionPacketToTimeWaitListManager) { |
| CreateTimeWaitListManager(); |
| |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| QuicConnectionId connection_id = 1; |
| // Dispatcher forwards all packets for this connection_id to the time wait |
| // list manager. |
| EXPECT_CALL(dispatcher_, CreateQuicSession(_, _)).Times(0); |
| EXPECT_CALL(*time_wait_list_manager_, |
| ProcessPacket(_, _, connection_id, _, _)) |
| .Times(1); |
| EXPECT_CALL(*time_wait_list_manager_, AddConnectionIdToTimeWait(_, _, _, _)) |
| .Times(1); |
| ProcessPacket(client_address, connection_id, false, false, SerializeCHLO()); |
| } |
| |
| TEST_F(QuicDispatcherTest, ProcessPacketWithZeroPort) { |
| CreateTimeWaitListManager(); |
| |
| IPEndPoint client_address(net::test::Loopback4(), 0); |
| server_address_ = IPEndPoint(net::test::Any4(), 5); |
| |
| // dispatcher_ should drop this packet. |
| EXPECT_CALL(dispatcher_, CreateQuicSession(1, client_address)).Times(0); |
| EXPECT_CALL(*time_wait_list_manager_, ProcessPacket(_, _, _, _, _)).Times(0); |
| EXPECT_CALL(*time_wait_list_manager_, AddConnectionIdToTimeWait(_, _, _, _)) |
| .Times(0); |
| ProcessPacket(client_address, 1, true, false, SerializeCHLO()); |
| } |
| |
| TEST_F(QuicDispatcherTest, OKSeqNoPacketProcessed) { |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| QuicConnectionId connection_id = 1; |
| server_address_ = IPEndPoint(net::test::Any4(), 5); |
| |
| EXPECT_CALL(dispatcher_, CreateQuicSession(1, client_address)) |
| .WillOnce(testing::Return(CreateSession( |
| &dispatcher_, config_, 1, client_address, &mock_helper_, |
| &mock_alarm_factory_, &crypto_config_, |
| QuicDispatcherPeer::GetCache(&dispatcher_), &session1_))); |
| // A packet whose packet number is the largest that is allowed to start a |
| // connection. |
| ProcessPacket(client_address, connection_id, true, false, SerializeCHLO(), |
| PACKET_8BYTE_CONNECTION_ID, PACKET_6BYTE_PACKET_NUMBER, |
| kDefaultPathId, |
| QuicDispatcher::kMaxReasonableInitialPacketNumber); |
| EXPECT_EQ(client_address, dispatcher_.current_client_address()); |
| EXPECT_EQ(server_address_, dispatcher_.current_server_address()); |
| } |
| |
| TEST_F(QuicDispatcherTest, TooBigSeqNoPacketToTimeWaitListManager) { |
| CreateTimeWaitListManager(); |
| |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| QuicConnectionId connection_id = 1; |
| // Dispatcher forwards this packet for this connection_id to the time wait |
| // list manager. |
| EXPECT_CALL(dispatcher_, CreateQuicSession(_, _)).Times(0); |
| EXPECT_CALL(*time_wait_list_manager_, |
| ProcessPacket(_, _, connection_id, _, _)) |
| .Times(1); |
| EXPECT_CALL(*time_wait_list_manager_, AddConnectionIdToTimeWait(_, _, _, _)) |
| .Times(1); |
| // A packet whose packet number is one to large to be allowed to start a |
| // connection. |
| ProcessPacket(client_address, connection_id, true, false, SerializeCHLO(), |
| PACKET_8BYTE_CONNECTION_ID, PACKET_6BYTE_PACKET_NUMBER, |
| kDefaultPathId, |
| QuicDispatcher::kMaxReasonableInitialPacketNumber + 1); |
| } |
| |
| // Enables mocking of the handshake-confirmation for stateless rejects. |
| class MockQuicCryptoServerStream : public QuicCryptoServerStream { |
| public: |
| MockQuicCryptoServerStream(const QuicCryptoServerConfig& crypto_config, |
| QuicCompressedCertsCache* compressed_certs_cache, |
| QuicServerSessionBase* session) |
| : QuicCryptoServerStream(&crypto_config, |
| compressed_certs_cache, |
| FLAGS_enable_quic_stateless_reject_support, |
| session) {} |
| void set_handshake_confirmed_for_testing(bool handshake_confirmed) { |
| handshake_confirmed_ = handshake_confirmed; |
| } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(MockQuicCryptoServerStream); |
| }; |
| |
| struct StatelessRejectTestParams { |
| StatelessRejectTestParams(bool enable_stateless_rejects_via_flag, |
| bool client_supports_statelesss_rejects, |
| bool crypto_handshake_successful) |
| : enable_stateless_rejects_via_flag(enable_stateless_rejects_via_flag), |
| client_supports_statelesss_rejects(client_supports_statelesss_rejects), |
| crypto_handshake_successful(crypto_handshake_successful) {} |
| |
| friend std::ostream& operator<<(std::ostream& os, |
| const StatelessRejectTestParams& p) { |
| os << "{ enable_stateless_rejects_via_flag: " |
| << p.enable_stateless_rejects_via_flag << std::endl; |
| os << " client_supports_statelesss_rejects: " |
| << p.client_supports_statelesss_rejects << std::endl; |
| os << " crypto_handshake_successful: " << p.crypto_handshake_successful |
| << " }"; |
| return os; |
| } |
| |
| // This only enables the stateless reject feature via the feature-flag. |
| // This should be a no-op if the peer does not support them. |
| bool enable_stateless_rejects_via_flag; |
| // Whether or not the client supports stateless rejects. |
| bool client_supports_statelesss_rejects; |
| // Should the initial crypto handshake succeed or not. |
| bool crypto_handshake_successful; |
| }; |
| |
| // Constructs various test permutations for stateless rejects. |
| vector<StatelessRejectTestParams> GetStatelessRejectTestParams() { |
| vector<StatelessRejectTestParams> params; |
| for (bool enable_stateless_rejects_via_flag : {true, false}) { |
| for (bool client_supports_statelesss_rejects : {true, false}) { |
| for (bool crypto_handshake_successful : {true, false}) { |
| params.push_back(StatelessRejectTestParams( |
| enable_stateless_rejects_via_flag, |
| client_supports_statelesss_rejects, crypto_handshake_successful)); |
| } |
| } |
| } |
| return params; |
| } |
| |
| class QuicDispatcherStatelessRejectTest |
| : public QuicDispatcherTest, |
| public ::testing::WithParamInterface<StatelessRejectTestParams> { |
| public: |
| QuicDispatcherStatelessRejectTest() : crypto_stream1_(nullptr) {} |
| |
| ~QuicDispatcherStatelessRejectTest() override { |
| if (crypto_stream1_) { |
| delete crypto_stream1_; |
| } |
| } |
| |
| // This test setup assumes that all testing will be done using |
| // crypto_stream1_. |
| void SetUp() override { |
| FLAGS_enable_quic_stateless_reject_support = |
| GetParam().enable_stateless_rejects_via_flag; |
| } |
| |
| // Returns true or false, depending on whether the server will emit |
| // a stateless reject, depending upon the parameters of the test. |
| bool ExpectStatelessReject() { |
| return GetParam().enable_stateless_rejects_via_flag && |
| !GetParam().crypto_handshake_successful && |
| GetParam().client_supports_statelesss_rejects; |
| } |
| |
| // Sets up dispatcher_, sesession1_, and crypto_stream1_ based on |
| // the test parameters. |
| QuicServerSessionBase* CreateSessionBasedOnTestParams( |
| QuicConnectionId connection_id, |
| const IPEndPoint& client_address) { |
| CreateSession(&dispatcher_, config_, connection_id, client_address, |
| &mock_helper_, &mock_alarm_factory_, &crypto_config_, |
| QuicDispatcherPeer::GetCache(&dispatcher_), &session1_); |
| |
| crypto_stream1_ = new MockQuicCryptoServerStream( |
| crypto_config_, QuicDispatcherPeer::GetCache(&dispatcher_), session1_); |
| session1_->SetCryptoStream(crypto_stream1_); |
| crypto_stream1_->set_handshake_confirmed_for_testing( |
| GetParam().crypto_handshake_successful); |
| crypto_stream1_->SetPeerSupportsStatelessRejects( |
| GetParam().client_supports_statelesss_rejects); |
| return session1_; |
| } |
| |
| MockQuicCryptoServerStream* crypto_stream1_; |
| }; |
| |
| // Parameterized test for stateless rejects. Should test all |
| // combinations of enabling/disabling, reject/no-reject for stateless |
| // rejects. |
| INSTANTIATE_TEST_CASE_P(QuicDispatcherStatelessRejectTests, |
| QuicDispatcherStatelessRejectTest, |
| ::testing::ValuesIn(GetStatelessRejectTestParams())); |
| |
| TEST_P(QuicDispatcherStatelessRejectTest, ParameterizedBasicTest) { |
| CreateTimeWaitListManager(); |
| |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| QuicConnectionId connection_id = 1; |
| EXPECT_CALL(dispatcher_, CreateQuicSession(connection_id, client_address)) |
| .WillOnce(testing::Return( |
| CreateSessionBasedOnTestParams(connection_id, client_address))); |
| |
| // Process the first packet for the connection. |
| ProcessPacket(client_address, connection_id, true, false, SerializeCHLO()); |
| if (ExpectStatelessReject()) { |
| // If this is a stateless reject, the crypto stream will close the |
| // connection. |
| session1_->connection()->CloseConnection( |
| QUIC_CRYPTO_HANDSHAKE_STATELESS_REJECT, "stateless reject", |
| ConnectionCloseBehavior::SILENT_CLOSE); |
| } |
| |
| // Send a second packet and check the results. If this is a stateless reject, |
| // the existing connection_id will go on the time-wait list. |
| EXPECT_EQ(ExpectStatelessReject(), |
| time_wait_list_manager_->IsConnectionIdInTimeWait(connection_id)); |
| if (ExpectStatelessReject()) { |
| // The second packet will be processed on the time-wait list. |
| EXPECT_CALL(*time_wait_list_manager_, |
| ProcessPacket(_, _, connection_id, _, _)) |
| .Times(1); |
| } else { |
| // The second packet will trigger a packet-validation |
| EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()), |
| ProcessUdpPacket(_, _, _)) |
| .Times(1) |
| .WillOnce(testing::WithArgs<2>( |
| Invoke(this, &QuicDispatcherTest::ValidatePacket))); |
| } |
| ProcessPacket(client_address, connection_id, true, false, "data"); |
| } |
| |
| TEST_P(QuicDispatcherStatelessRejectTest, CheapRejects) { |
| FLAGS_quic_use_cheap_stateless_rejects = true; |
| CreateTimeWaitListManager(); |
| |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| QuicConnectionId connection_id = 1; |
| if (GetParam().enable_stateless_rejects_via_flag) { |
| EXPECT_CALL(dispatcher_, CreateQuicSession(connection_id, client_address)) |
| .Times(0); |
| } else { |
| EXPECT_CALL(dispatcher_, CreateQuicSession(connection_id, client_address)) |
| .WillOnce(testing::Return( |
| CreateSessionBasedOnTestParams(connection_id, client_address))); |
| } |
| |
| VLOG(1) << "ExpectStatelessReject: " << ExpectStatelessReject(); |
| VLOG(1) << "Params: " << GetParam(); |
| // Process the first packet for the connection. |
| // clang-format off |
| CryptoHandshakeMessage client_hello = CryptoTestUtils::Message( |
| "CHLO", |
| "AEAD", "AESG", |
| "KEXS", "C255", |
| "COPT", "SREJ", |
| "NONC", "1234567890123456789012", |
| "VER\0", "Q025", |
| "$padding", static_cast<int>(kClientHelloMinimumSize), |
| nullptr); |
| // clang-format on |
| |
| ProcessPacket(client_address, connection_id, true, false, |
| client_hello.GetSerialized().AsStringPiece().as_string()); |
| |
| if (GetParam().enable_stateless_rejects_via_flag) { |
| EXPECT_EQ(true, |
| time_wait_list_manager_->IsConnectionIdInTimeWait(connection_id)); |
| } |
| } |
| |
| // Verify the stopgap test: Packets with truncated connection IDs should be |
| // dropped. |
| class QuicDispatcherTestStrayPacketConnectionId : public QuicDispatcherTest {}; |
| |
| // Packets with truncated connection IDs should be dropped. |
| TEST_F(QuicDispatcherTestStrayPacketConnectionId, |
| StrayPacketTruncatedConnectionId) { |
| CreateTimeWaitListManager(); |
| |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| QuicConnectionId connection_id = 1; |
| // Dispatcher drops this packet. |
| EXPECT_CALL(dispatcher_, CreateQuicSession(_, _)).Times(0); |
| EXPECT_CALL(*time_wait_list_manager_, |
| ProcessPacket(_, _, connection_id, _, _)) |
| .Times(0); |
| EXPECT_CALL(*time_wait_list_manager_, AddConnectionIdToTimeWait(_, _, _, _)) |
| .Times(0); |
| ProcessPacket(client_address, connection_id, true, false, "data", |
| PACKET_0BYTE_CONNECTION_ID, PACKET_6BYTE_PACKET_NUMBER); |
| } |
| |
| class BlockingWriter : public QuicPacketWriterWrapper { |
| public: |
| BlockingWriter() : write_blocked_(false) {} |
| |
| bool IsWriteBlocked() const override { return write_blocked_; } |
| void SetWritable() override { write_blocked_ = false; } |
| |
| WriteResult WritePacket(const char* buffer, |
| size_t buf_len, |
| const IPAddress& self_client_address, |
| const IPEndPoint& peer_client_address, |
| PerPacketOptions* options) override { |
| // It would be quite possible to actually implement this method here with |
| // the fake blocked status, but it would be significantly more work in |
| // Chromium, and since it's not called anyway, don't bother. |
| LOG(DFATAL) << "Not supported"; |
| return WriteResult(); |
| } |
| |
| bool write_blocked_; |
| }; |
| |
| class QuicDispatcherWriteBlockedListTest : public QuicDispatcherTest { |
| public: |
| void SetUp() override { |
| writer_ = new BlockingWriter; |
| QuicDispatcherPeer::UseWriter(&dispatcher_, writer_); |
| |
| IPEndPoint client_address(net::test::Loopback4(), 1); |
| |
| EXPECT_CALL(dispatcher_, CreateQuicSession(_, client_address)) |
| .WillOnce(testing::Return(CreateSession( |
| &dispatcher_, config_, 1, client_address, &helper_, &alarm_factory_, |
| &crypto_config_, QuicDispatcherPeer::GetCache(&dispatcher_), |
| &session1_))); |
| ProcessPacket(client_address, 1, true, false, SerializeCHLO()); |
| |
| EXPECT_CALL(dispatcher_, CreateQuicSession(_, client_address)) |
| .WillOnce(testing::Return(CreateSession( |
| &dispatcher_, config_, 2, client_address, &helper_, &alarm_factory_, |
| &crypto_config_, QuicDispatcherPeer::GetCache(&dispatcher_), |
| &session2_))); |
| ProcessPacket(client_address, 2, true, false, SerializeCHLO()); |
| |
| blocked_list_ = QuicDispatcherPeer::GetWriteBlockedList(&dispatcher_); |
| } |
| |
| void TearDown() override { |
| EXPECT_CALL(*connection1(), CloseConnection(QUIC_PEER_GOING_AWAY, _, _)); |
| EXPECT_CALL(*connection2(), CloseConnection(QUIC_PEER_GOING_AWAY, _, _)); |
| dispatcher_.Shutdown(); |
| } |
| |
| void SetBlocked() { writer_->write_blocked_ = true; } |
| |
| void BlockConnection2() { |
| writer_->write_blocked_ = true; |
| dispatcher_.OnWriteBlocked(connection2()); |
| } |
| |
| protected: |
| MockQuicConnectionHelper helper_; |
| MockAlarmFactory alarm_factory_; |
| BlockingWriter* writer_; |
| QuicDispatcher::WriteBlockedList* blocked_list_; |
| }; |
| |
| TEST_F(QuicDispatcherWriteBlockedListTest, BasicOnCanWrite) { |
| // No OnCanWrite calls because no connections are blocked. |
| dispatcher_.OnCanWrite(); |
| |
| // Register connection 1 for events, and make sure it's notified. |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| EXPECT_CALL(*connection1(), OnCanWrite()); |
| dispatcher_.OnCanWrite(); |
| |
| // It should get only one notification. |
| EXPECT_CALL(*connection1(), OnCanWrite()).Times(0); |
| dispatcher_.OnCanWrite(); |
| EXPECT_FALSE(dispatcher_.HasPendingWrites()); |
| } |
| |
| TEST_F(QuicDispatcherWriteBlockedListTest, OnCanWriteOrder) { |
| // Make sure we handle events in order. |
| InSequence s; |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| dispatcher_.OnWriteBlocked(connection2()); |
| EXPECT_CALL(*connection1(), OnCanWrite()); |
| EXPECT_CALL(*connection2(), OnCanWrite()); |
| dispatcher_.OnCanWrite(); |
| |
| // Check the other ordering. |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection2()); |
| dispatcher_.OnWriteBlocked(connection1()); |
| EXPECT_CALL(*connection2(), OnCanWrite()); |
| EXPECT_CALL(*connection1(), OnCanWrite()); |
| dispatcher_.OnCanWrite(); |
| } |
| |
| TEST_F(QuicDispatcherWriteBlockedListTest, OnCanWriteRemove) { |
| // Add and remove one connction. |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| blocked_list_->erase(connection1()); |
| EXPECT_CALL(*connection1(), OnCanWrite()).Times(0); |
| dispatcher_.OnCanWrite(); |
| |
| // Add and remove one connction and make sure it doesn't affect others. |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| dispatcher_.OnWriteBlocked(connection2()); |
| blocked_list_->erase(connection1()); |
| EXPECT_CALL(*connection2(), OnCanWrite()); |
| dispatcher_.OnCanWrite(); |
| |
| // Add it, remove it, and add it back and make sure things are OK. |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| blocked_list_->erase(connection1()); |
| dispatcher_.OnWriteBlocked(connection1()); |
| EXPECT_CALL(*connection1(), OnCanWrite()).Times(1); |
| dispatcher_.OnCanWrite(); |
| } |
| |
| TEST_F(QuicDispatcherWriteBlockedListTest, DoubleAdd) { |
| // Make sure a double add does not necessitate a double remove. |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| dispatcher_.OnWriteBlocked(connection1()); |
| blocked_list_->erase(connection1()); |
| EXPECT_CALL(*connection1(), OnCanWrite()).Times(0); |
| dispatcher_.OnCanWrite(); |
| |
| // Make sure a double add does not result in two OnCanWrite calls. |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| dispatcher_.OnWriteBlocked(connection1()); |
| EXPECT_CALL(*connection1(), OnCanWrite()).Times(1); |
| dispatcher_.OnCanWrite(); |
| } |
| |
| TEST_F(QuicDispatcherWriteBlockedListTest, OnCanWriteHandleBlock) { |
| // Finally make sure if we write block on a write call, we stop calling. |
| InSequence s; |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| dispatcher_.OnWriteBlocked(connection2()); |
| EXPECT_CALL(*connection1(), OnCanWrite()) |
| .WillOnce(Invoke(this, &QuicDispatcherWriteBlockedListTest::SetBlocked)); |
| EXPECT_CALL(*connection2(), OnCanWrite()).Times(0); |
| dispatcher_.OnCanWrite(); |
| |
| // And we'll resume where we left off when we get another call. |
| EXPECT_CALL(*connection2(), OnCanWrite()); |
| dispatcher_.OnCanWrite(); |
| } |
| |
| TEST_F(QuicDispatcherWriteBlockedListTest, LimitedWrites) { |
| // Make sure we call both writers. The first will register for more writing |
| // but should not be immediately called due to limits. |
| InSequence s; |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| dispatcher_.OnWriteBlocked(connection2()); |
| EXPECT_CALL(*connection1(), OnCanWrite()); |
| EXPECT_CALL(*connection2(), OnCanWrite()) |
| .WillOnce( |
| Invoke(this, &QuicDispatcherWriteBlockedListTest::BlockConnection2)); |
| dispatcher_.OnCanWrite(); |
| EXPECT_TRUE(dispatcher_.HasPendingWrites()); |
| |
| // Now call OnCanWrite again, and connection1 should get its second chance |
| EXPECT_CALL(*connection2(), OnCanWrite()); |
| dispatcher_.OnCanWrite(); |
| EXPECT_FALSE(dispatcher_.HasPendingWrites()); |
| } |
| |
| TEST_F(QuicDispatcherWriteBlockedListTest, TestWriteLimits) { |
| // Finally make sure if we write block on a write call, we stop calling. |
| InSequence s; |
| SetBlocked(); |
| dispatcher_.OnWriteBlocked(connection1()); |
| dispatcher_.OnWriteBlocked(connection2()); |
| EXPECT_CALL(*connection1(), OnCanWrite()) |
| .WillOnce(Invoke(this, &QuicDispatcherWriteBlockedListTest::SetBlocked)); |
| EXPECT_CALL(*connection2(), OnCanWrite()).Times(0); |
| dispatcher_.OnCanWrite(); |
| EXPECT_TRUE(dispatcher_.HasPendingWrites()); |
| |
| // And we'll resume where we left off when we get another call. |
| EXPECT_CALL(*connection2(), OnCanWrite()); |
| dispatcher_.OnCanWrite(); |
| EXPECT_FALSE(dispatcher_.HasPendingWrites()); |
| } |
| |
| } // namespace |
| } // namespace test |
| } // namespace net |
