| // Copyright 2013 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_time_wait_list_manager.h" |
| |
| #include <errno.h> |
| |
| #include "net/quic/crypto/crypto_protocol.h" |
| #include "net/quic/crypto/null_encrypter.h" |
| #include "net/quic/crypto/quic_decrypter.h" |
| #include "net/quic/crypto/quic_encrypter.h" |
| #include "net/quic/quic_connection_helper.h" |
| #include "net/quic/quic_data_reader.h" |
| #include "net/quic/quic_flags.h" |
| #include "net/quic/quic_framer.h" |
| #include "net/quic/quic_packet_writer.h" |
| #include "net/quic/quic_protocol.h" |
| #include "net/quic/quic_utils.h" |
| #include "net/quic/test_tools/quic_test_utils.h" |
| #include "net/tools/quic/quic_epoll_connection_helper.h" |
| #include "net/tools/quic/test_tools/mock_epoll_server.h" |
| #include "net/tools/quic/test_tools/mock_quic_server_session_visitor.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| using net::test::kTestPort; |
| using net::test::BuildUnsizedDataPacket; |
| using net::test::NoOpFramerVisitor; |
| using net::test::QuicVersionMax; |
| using net::test::QuicVersionMin; |
| using net::test::ValueRestore; |
| using net::test::MockPacketWriter; |
| |
| using testing::Args; |
| using testing::Assign; |
| using testing::DoAll; |
| using testing::Matcher; |
| using testing::MatcherInterface; |
| using testing::NiceMock; |
| using testing::Return; |
| using testing::ReturnPointee; |
| using testing::SetArgPointee; |
| using testing::StrictMock; |
| using testing::Truly; |
| using testing::_; |
| |
| namespace net { |
| namespace tools { |
| namespace test { |
| |
| class FramerVisitorCapturingPublicReset : public NoOpFramerVisitor { |
| public: |
| FramerVisitorCapturingPublicReset() {} |
| ~FramerVisitorCapturingPublicReset() override {} |
| |
| void OnPublicResetPacket(const QuicPublicResetPacket& public_reset) override { |
| public_reset_packet_ = public_reset; |
| } |
| |
| const QuicPublicResetPacket public_reset_packet() { |
| return public_reset_packet_; |
| } |
| |
| private: |
| QuicPublicResetPacket public_reset_packet_; |
| }; |
| |
| class QuicTimeWaitListManagerPeer { |
| public: |
| static bool ShouldSendResponse(QuicTimeWaitListManager* manager, |
| int received_packet_count) { |
| return manager->ShouldSendResponse(received_packet_count); |
| } |
| |
| static QuicTime::Delta time_wait_period(QuicTimeWaitListManager* manager) { |
| return manager->time_wait_period_; |
| } |
| |
| static QuicVersion GetQuicVersionFromConnectionId( |
| QuicTimeWaitListManager* manager, |
| QuicConnectionId connection_id) { |
| return manager->GetQuicVersionFromConnectionId(connection_id); |
| } |
| }; |
| |
| namespace { |
| |
| class MockFakeTimeEpollServer : public FakeTimeEpollServer { |
| public: |
| MOCK_METHOD2(RegisterAlarm, void(int64 timeout_in_us, |
| EpollAlarmCallbackInterface* alarm)); |
| }; |
| |
| class QuicTimeWaitListManagerTest : public ::testing::Test { |
| protected: |
| QuicTimeWaitListManagerTest() |
| : helper_(&epoll_server_), |
| time_wait_list_manager_(&writer_, |
| &visitor_, |
| &helper_, |
| QuicSupportedVersions()), |
| framer_(QuicSupportedVersions(), |
| QuicTime::Zero(), |
| Perspective::IS_SERVER), |
| connection_id_(45), |
| client_address_(net::test::TestPeerIPAddress(), kTestPort), |
| writer_is_blocked_(false) {} |
| |
| ~QuicTimeWaitListManagerTest() override {} |
| |
| void SetUp() override { |
| EXPECT_CALL(writer_, IsWriteBlocked()) |
| .WillRepeatedly(ReturnPointee(&writer_is_blocked_)); |
| EXPECT_CALL(writer_, IsWriteBlockedDataBuffered()) |
| .WillRepeatedly(Return(false)); |
| } |
| |
| void AddConnectionId(QuicConnectionId connection_id) { |
| AddConnectionId(connection_id, QuicVersionMax(), |
| /*connection_rejected_statelessly=*/false, nullptr); |
| } |
| |
| void AddStatelessConnectionId(QuicConnectionId connection_id) { |
| time_wait_list_manager_.AddConnectionIdToTimeWait( |
| connection_id, QuicVersionMax(), |
| /*connection_rejected_statelessly=*/true, nullptr); |
| } |
| |
| void AddConnectionId(QuicConnectionId connection_id, |
| QuicVersion version, |
| bool connection_rejected_statelessly, |
| QuicEncryptedPacket* packet) { |
| time_wait_list_manager_.AddConnectionIdToTimeWait( |
| connection_id, version, connection_rejected_statelessly, packet); |
| } |
| |
| bool IsConnectionIdInTimeWait(QuicConnectionId connection_id) { |
| return time_wait_list_manager_.IsConnectionIdInTimeWait(connection_id); |
| } |
| |
| void ProcessPacket(QuicConnectionId connection_id, |
| QuicPacketSequenceNumber sequence_number) { |
| QuicEncryptedPacket packet(nullptr, 0); |
| time_wait_list_manager_.ProcessPacket(server_address_, |
| client_address_, |
| connection_id, |
| sequence_number, |
| packet); |
| } |
| |
| QuicEncryptedPacket* ConstructEncryptedPacket( |
| EncryptionLevel level, |
| QuicConnectionId connection_id, |
| QuicPacketSequenceNumber sequence_number) { |
| QuicPacketHeader header; |
| header.public_header.connection_id = connection_id; |
| header.public_header.connection_id_length = PACKET_8BYTE_CONNECTION_ID; |
| header.public_header.version_flag = false; |
| header.public_header.reset_flag = false; |
| header.public_header.sequence_number_length = PACKET_6BYTE_SEQUENCE_NUMBER; |
| header.packet_sequence_number = sequence_number; |
| header.entropy_flag = false; |
| header.entropy_hash = 0; |
| header.fec_flag = false; |
| header.is_in_fec_group = NOT_IN_FEC_GROUP; |
| header.fec_group = 0; |
| QuicStreamFrame stream_frame(1, false, 0, StringPiece("data")); |
| QuicFrame frame(&stream_frame); |
| QuicFrames frames; |
| frames.push_back(frame); |
| scoped_ptr<QuicPacket> packet( |
| BuildUnsizedDataPacket(&framer_, header, frames)); |
| EXPECT_TRUE(packet != nullptr); |
| char buffer[kMaxPacketSize]; |
| scoped_ptr<QuicEncryptedPacket> encrypted(framer_.EncryptPayload( |
| ENCRYPTION_NONE, sequence_number, *packet, buffer, kMaxPacketSize)); |
| EXPECT_TRUE(encrypted != nullptr); |
| return encrypted->Clone(); |
| } |
| |
| NiceMock<MockFakeTimeEpollServer> epoll_server_; |
| QuicEpollConnectionHelper helper_; |
| StrictMock<MockPacketWriter> writer_; |
| StrictMock<MockQuicServerSessionVisitor> visitor_; |
| QuicTimeWaitListManager time_wait_list_manager_; |
| QuicFramer framer_; |
| QuicConnectionId connection_id_; |
| IPEndPoint server_address_; |
| IPEndPoint client_address_; |
| bool writer_is_blocked_; |
| }; |
| |
| class ValidatePublicResetPacketPredicate |
| : public MatcherInterface<const std::tr1::tuple<const char*, int> > { |
| public: |
| explicit ValidatePublicResetPacketPredicate(QuicConnectionId connection_id, |
| QuicPacketSequenceNumber number) |
| : connection_id_(connection_id), sequence_number_(number) { |
| } |
| |
| bool MatchAndExplain( |
| const std::tr1::tuple<const char*, int> packet_buffer, |
| testing::MatchResultListener* /* listener */) const override { |
| FramerVisitorCapturingPublicReset visitor; |
| QuicFramer framer(QuicSupportedVersions(), QuicTime::Zero(), |
| Perspective::IS_CLIENT); |
| framer.set_visitor(&visitor); |
| QuicEncryptedPacket encrypted(std::tr1::get<0>(packet_buffer), |
| std::tr1::get<1>(packet_buffer)); |
| framer.ProcessPacket(encrypted); |
| QuicPublicResetPacket packet = visitor.public_reset_packet(); |
| return connection_id_ == packet.public_header.connection_id && |
| packet.public_header.reset_flag && !packet.public_header.version_flag && |
| sequence_number_ == packet.rejected_sequence_number && |
| net::test::TestPeerIPAddress() == packet.client_address.address() && |
| kTestPort == packet.client_address.port(); |
| } |
| |
| void DescribeTo(::std::ostream* os) const override {} |
| |
| void DescribeNegationTo(::std::ostream* os) const override {} |
| |
| private: |
| QuicConnectionId connection_id_; |
| QuicPacketSequenceNumber sequence_number_; |
| }; |
| |
| Matcher<const std::tr1::tuple<const char*, int>> PublicResetPacketEq( |
| QuicConnectionId connection_id, |
| QuicPacketSequenceNumber sequence_number) { |
| return MakeMatcher(new ValidatePublicResetPacketPredicate(connection_id, |
| sequence_number)); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, CheckConnectionIdInTimeWait) { |
| EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id_)); |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_)); |
| AddConnectionId(connection_id_); |
| EXPECT_EQ(1u, time_wait_list_manager_.num_connections()); |
| EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_)); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, CheckStatelessConnectionIdInTimeWait) { |
| EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id_)); |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_)); |
| AddStatelessConnectionId(connection_id_); |
| EXPECT_EQ(1u, time_wait_list_manager_.num_connections()); |
| EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_)); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, SendConnectionClose) { |
| const size_t kConnectionCloseLength = 100; |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_)); |
| AddConnectionId(connection_id_, QuicVersionMax(), |
| /*connection_rejected_statelessly=*/false, |
| new QuicEncryptedPacket(new char[kConnectionCloseLength], |
| kConnectionCloseLength, true)); |
| const int kRandomSequenceNumber = 1; |
| EXPECT_CALL(writer_, WritePacket(_, kConnectionCloseLength, |
| server_address_.address(), |
| client_address_)) |
| .WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1))); |
| |
| ProcessPacket(connection_id_, kRandomSequenceNumber); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, SendPublicReset) { |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_)); |
| AddConnectionId(connection_id_); |
| const int kRandomSequenceNumber = 1; |
| EXPECT_CALL(writer_, WritePacket(_, _, |
| server_address_.address(), |
| client_address_)) |
| .With(Args<0, 1>(PublicResetPacketEq(connection_id_, |
| kRandomSequenceNumber))) |
| .WillOnce(Return(WriteResult(WRITE_STATUS_OK, 0))); |
| |
| ProcessPacket(connection_id_, kRandomSequenceNumber); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, SendPublicResetWithExponentialBackOff) { |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_)); |
| AddConnectionId(connection_id_); |
| EXPECT_EQ(1u, time_wait_list_manager_.num_connections()); |
| for (int sequence_number = 1; sequence_number < 101; ++sequence_number) { |
| if ((sequence_number & (sequence_number - 1)) == 0) { |
| EXPECT_CALL(writer_, WritePacket(_, _, _, _)) |
| .WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1))); |
| } |
| ProcessPacket(connection_id_, sequence_number); |
| // Send public reset with exponential back off. |
| if ((sequence_number & (sequence_number - 1)) == 0) { |
| EXPECT_TRUE(QuicTimeWaitListManagerPeer::ShouldSendResponse( |
| &time_wait_list_manager_, sequence_number)); |
| } else { |
| EXPECT_FALSE(QuicTimeWaitListManagerPeer::ShouldSendResponse( |
| &time_wait_list_manager_, sequence_number)); |
| } |
| } |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, NoPublicResetForStatelessConnections) { |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_)); |
| AddStatelessConnectionId(connection_id_); |
| const int kRandomSequenceNumber = 1; |
| ProcessPacket(connection_id_, kRandomSequenceNumber); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, CleanUpOldConnectionIds) { |
| const size_t kConnectionIdCount = 100; |
| const size_t kOldConnectionIdCount = 31; |
| |
| // Add connection_ids such that their expiry time is time_wait_period_. |
| epoll_server_.set_now_in_usec(0); |
| for (size_t connection_id = 1; connection_id <= kOldConnectionIdCount; |
| ++connection_id) { |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id)); |
| AddConnectionId(connection_id); |
| } |
| EXPECT_EQ(kOldConnectionIdCount, time_wait_list_manager_.num_connections()); |
| |
| // Add remaining connection_ids such that their add time is |
| // 2 * time_wait_period_. |
| const QuicTime::Delta time_wait_period = |
| QuicTimeWaitListManagerPeer::time_wait_period(&time_wait_list_manager_); |
| epoll_server_.set_now_in_usec(time_wait_period.ToMicroseconds()); |
| for (size_t connection_id = kOldConnectionIdCount + 1; |
| connection_id <= kConnectionIdCount; ++connection_id) { |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id)); |
| AddConnectionId(connection_id); |
| } |
| EXPECT_EQ(kConnectionIdCount, time_wait_list_manager_.num_connections()); |
| |
| QuicTime::Delta offset = QuicTime::Delta::FromMicroseconds(39); |
| // Now set the current time as time_wait_period + offset usecs. |
| epoll_server_.set_now_in_usec(time_wait_period.Add(offset).ToMicroseconds()); |
| // After all the old connection_ids are cleaned up, check the next alarm |
| // interval. |
| int64 next_alarm_time = epoll_server_.ApproximateNowInUsec() + |
| time_wait_period.Subtract(offset).ToMicroseconds(); |
| EXPECT_CALL(epoll_server_, RegisterAlarm(next_alarm_time, _)); |
| |
| for (size_t connection_id = 1; connection_id <= kConnectionIdCount; |
| ++connection_id) { |
| if (connection_id <= kOldConnectionIdCount) { |
| EXPECT_CALL(visitor_, OnConnectionRemovedFromTimeWaitList(connection_id)); |
| } |
| } |
| time_wait_list_manager_.CleanUpOldConnectionIds(); |
| for (size_t connection_id = 1; connection_id <= kConnectionIdCount; |
| ++connection_id) { |
| EXPECT_EQ(connection_id > kOldConnectionIdCount, |
| IsConnectionIdInTimeWait(connection_id)) |
| << "kOldConnectionIdCount: " << kOldConnectionIdCount |
| << " connection_id: " << connection_id; |
| } |
| EXPECT_EQ(kConnectionIdCount - kOldConnectionIdCount, |
| time_wait_list_manager_.num_connections()); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, SendQueuedPackets) { |
| QuicConnectionId connection_id = 1; |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id)); |
| AddConnectionId(connection_id); |
| QuicPacketSequenceNumber sequence_number = 234; |
| scoped_ptr<QuicEncryptedPacket> packet(ConstructEncryptedPacket( |
| ENCRYPTION_NONE, connection_id, sequence_number)); |
| // Let first write through. |
| EXPECT_CALL(writer_, WritePacket(_, _, |
| server_address_.address(), |
| client_address_)) |
| .With(Args<0, 1>(PublicResetPacketEq(connection_id, |
| sequence_number))) |
| .WillOnce(Return(WriteResult(WRITE_STATUS_OK, packet->length()))); |
| ProcessPacket(connection_id, sequence_number); |
| |
| // write block for the next packet. |
| EXPECT_CALL(writer_, WritePacket(_, _, |
| server_address_.address(), |
| client_address_)) |
| .With(Args<0, 1>(PublicResetPacketEq(connection_id, |
| sequence_number))) |
| .WillOnce(DoAll( |
| Assign(&writer_is_blocked_, true), |
| Return(WriteResult(WRITE_STATUS_BLOCKED, EAGAIN)))); |
| EXPECT_CALL(visitor_, OnWriteBlocked(&time_wait_list_manager_)); |
| ProcessPacket(connection_id, sequence_number); |
| // 3rd packet. No public reset should be sent; |
| ProcessPacket(connection_id, sequence_number); |
| |
| // write packet should not be called since we are write blocked but the |
| // should be queued. |
| QuicConnectionId other_connection_id = 2; |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(other_connection_id)); |
| AddConnectionId(other_connection_id); |
| QuicPacketSequenceNumber other_sequence_number = 23423; |
| scoped_ptr<QuicEncryptedPacket> other_packet( |
| ConstructEncryptedPacket( |
| ENCRYPTION_NONE, other_connection_id, other_sequence_number)); |
| EXPECT_CALL(writer_, WritePacket(_, _, _, _)) |
| .Times(0); |
| EXPECT_CALL(visitor_, OnWriteBlocked(&time_wait_list_manager_)); |
| ProcessPacket(other_connection_id, other_sequence_number); |
| EXPECT_EQ(2u, time_wait_list_manager_.num_connections()); |
| |
| // Now expect all the write blocked public reset packets to be sent again. |
| writer_is_blocked_ = false; |
| EXPECT_CALL(writer_, WritePacket(_, _, |
| server_address_.address(), |
| client_address_)) |
| .With(Args<0, 1>(PublicResetPacketEq(connection_id, |
| sequence_number))) |
| .WillOnce(Return(WriteResult(WRITE_STATUS_OK, packet->length()))); |
| EXPECT_CALL(writer_, WritePacket(_, _, |
| server_address_.address(), |
| client_address_)) |
| .With(Args<0, 1>(PublicResetPacketEq(other_connection_id, |
| other_sequence_number))) |
| .WillOnce(Return(WriteResult(WRITE_STATUS_OK, |
| other_packet->length()))); |
| time_wait_list_manager_.OnCanWrite(); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, GetQuicVersionFromMap) { |
| const int kConnectionId1 = 123; |
| const int kConnectionId2 = 456; |
| const int kConnectionId3 = 789; |
| |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(kConnectionId1)); |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(kConnectionId2)); |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(kConnectionId3)); |
| AddConnectionId(kConnectionId1, QuicVersionMin(), |
| /*connection_rejected_statelessly=*/false, nullptr); |
| AddConnectionId(kConnectionId2, QuicVersionMax(), |
| /*connection_rejected_statelessly=*/false, nullptr); |
| AddConnectionId(kConnectionId3, QuicVersionMax(), |
| /*connection_rejected_statelessly=*/false, nullptr); |
| |
| EXPECT_EQ(QuicVersionMin(), |
| QuicTimeWaitListManagerPeer::GetQuicVersionFromConnectionId( |
| &time_wait_list_manager_, kConnectionId1)); |
| EXPECT_EQ(QuicVersionMax(), |
| QuicTimeWaitListManagerPeer::GetQuicVersionFromConnectionId( |
| &time_wait_list_manager_, kConnectionId2)); |
| EXPECT_EQ(QuicVersionMax(), |
| QuicTimeWaitListManagerPeer::GetQuicVersionFromConnectionId( |
| &time_wait_list_manager_, kConnectionId3)); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, AddConnectionIdTwice) { |
| // Add connection_ids such that their expiry time is time_wait_period_. |
| epoll_server_.set_now_in_usec(0); |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_)); |
| AddConnectionId(connection_id_); |
| EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_)); |
| const size_t kConnectionCloseLength = 100; |
| AddConnectionId(connection_id_, QuicVersionMax(), |
| /*connection_rejected_statelessly=*/false, |
| new QuicEncryptedPacket(new char[kConnectionCloseLength], |
| kConnectionCloseLength, true)); |
| EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_)); |
| EXPECT_EQ(1u, time_wait_list_manager_.num_connections()); |
| |
| EXPECT_CALL(writer_, WritePacket(_, |
| kConnectionCloseLength, |
| server_address_.address(), |
| client_address_)) |
| .WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1))); |
| |
| const int kRandomSequenceNumber = 1; |
| ProcessPacket(connection_id_, kRandomSequenceNumber); |
| |
| const QuicTime::Delta time_wait_period = |
| QuicTimeWaitListManagerPeer::time_wait_period(&time_wait_list_manager_); |
| |
| QuicTime::Delta offset = QuicTime::Delta::FromMicroseconds(39); |
| // Now set the current time as time_wait_period + offset usecs. |
| epoll_server_.set_now_in_usec(time_wait_period.Add(offset).ToMicroseconds()); |
| // After the connection_ids are cleaned up, check the next alarm interval. |
| int64 next_alarm_time = epoll_server_.ApproximateNowInUsec() + |
| time_wait_period.ToMicroseconds(); |
| |
| EXPECT_CALL(epoll_server_, RegisterAlarm(next_alarm_time, _)); |
| EXPECT_CALL(visitor_, OnConnectionRemovedFromTimeWaitList(connection_id_)); |
| time_wait_list_manager_.CleanUpOldConnectionIds(); |
| EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id_)); |
| EXPECT_EQ(0u, time_wait_list_manager_.num_connections()); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, ConnectionIdsOrderedByTime) { |
| // Simple randomization: the values of connection_ids are swapped based on the |
| // current seconds on the clock. If the container is broken, the test will be |
| // 50% flaky. |
| int odd_second = static_cast<int>(epoll_server_.ApproximateNowInUsec()) % 2; |
| EXPECT_TRUE(odd_second == 0 || odd_second == 1); |
| const QuicConnectionId connection_id1 = odd_second; |
| const QuicConnectionId connection_id2 = 1 - odd_second; |
| |
| // 1 will hash lower than 2, but we add it later. They should come out in the |
| // add order, not hash order. |
| epoll_server_.set_now_in_usec(0); |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id1)); |
| AddConnectionId(connection_id1); |
| epoll_server_.set_now_in_usec(10); |
| EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id2)); |
| AddConnectionId(connection_id2); |
| EXPECT_EQ(2u, time_wait_list_manager_.num_connections()); |
| |
| const QuicTime::Delta time_wait_period = |
| QuicTimeWaitListManagerPeer::time_wait_period(&time_wait_list_manager_); |
| epoll_server_.set_now_in_usec(time_wait_period.ToMicroseconds() + 1); |
| |
| EXPECT_CALL(epoll_server_, RegisterAlarm(_, _)); |
| |
| EXPECT_CALL(visitor_, OnConnectionRemovedFromTimeWaitList(connection_id1)); |
| time_wait_list_manager_.CleanUpOldConnectionIds(); |
| EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id1)); |
| EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id2)); |
| EXPECT_EQ(1u, time_wait_list_manager_.num_connections()); |
| } |
| |
| TEST_F(QuicTimeWaitListManagerTest, MaxConnectionsTest) { |
| // Basically, shut off time-based eviction. |
| FLAGS_quic_time_wait_list_seconds = 10000000000; |
| FLAGS_quic_time_wait_list_max_connections = 5; |
| |
| QuicConnectionId current_connection_id = 0; |
| // Add exactly the maximum number of connections |
| for (int64 i = 0; i < FLAGS_quic_time_wait_list_max_connections; ++i) { |
| ++current_connection_id; |
| EXPECT_FALSE(IsConnectionIdInTimeWait(current_connection_id)); |
| EXPECT_CALL(visitor_, |
| OnConnectionAddedToTimeWaitList(current_connection_id)); |
| AddConnectionId(current_connection_id); |
| EXPECT_EQ(current_connection_id, time_wait_list_manager_.num_connections()); |
| EXPECT_TRUE(IsConnectionIdInTimeWait(current_connection_id)); |
| } |
| |
| // Now keep adding. Since we're already at the max, every new connection-id |
| // will evict the oldest one. |
| for (int64 i = 0; i < FLAGS_quic_time_wait_list_max_connections; ++i) { |
| ++current_connection_id; |
| const QuicConnectionId id_to_evict = |
| current_connection_id - FLAGS_quic_time_wait_list_max_connections; |
| EXPECT_TRUE(IsConnectionIdInTimeWait(id_to_evict)); |
| EXPECT_FALSE(IsConnectionIdInTimeWait(current_connection_id)); |
| EXPECT_CALL(visitor_, OnConnectionRemovedFromTimeWaitList(id_to_evict)); |
| EXPECT_CALL(visitor_, |
| OnConnectionAddedToTimeWaitList(current_connection_id)); |
| AddConnectionId(current_connection_id); |
| EXPECT_EQ(static_cast<size_t>(FLAGS_quic_time_wait_list_max_connections), |
| time_wait_list_manager_.num_connections()); |
| EXPECT_FALSE(IsConnectionIdInTimeWait(id_to_evict)); |
| EXPECT_TRUE(IsConnectionIdInTimeWait(current_connection_id)); |
| } |
| } |
| |
| } // namespace |
| } // namespace test |
| } // namespace tools |
| } // namespace net |
