| // 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/quic/core/quic_packet_creator.h" |
| |
| #include <cstdint> |
| #include <memory> |
| #include <ostream> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "net/quic/core/crypto/null_encrypter.h" |
| #include "net/quic/core/crypto/quic_decrypter.h" |
| #include "net/quic/core/crypto/quic_encrypter.h" |
| #include "net/quic/core/quic_pending_retransmission.h" |
| #include "net/quic/core/quic_simple_buffer_allocator.h" |
| #include "net/quic/core/quic_utils.h" |
| #include "net/quic/platform/api/quic_socket_address.h" |
| #include "net/quic/platform/api/quic_string_piece.h" |
| #include "net/quic/platform/api/quic_test.h" |
| #include "net/quic/test_tools/quic_framer_peer.h" |
| #include "net/quic/test_tools/quic_packet_creator_peer.h" |
| #include "net/quic/test_tools/quic_test_utils.h" |
| |
| using std::string; |
| using testing::DoAll; |
| using testing::InSequence; |
| using testing::Return; |
| using testing::SaveArg; |
| using testing::StrictMock; |
| using testing::_; |
| |
| namespace net { |
| namespace test { |
| namespace { |
| |
| const QuicStreamId kGetNthClientInitiatedStreamId1 = kHeadersStreamId + 2; |
| |
| // Run tests with combinations of {QuicVersion, ToggleVersionSerialization}. |
| struct TestParams { |
| TestParams(QuicVersion version, |
| bool version_serialization, |
| QuicConnectionIdLength length) |
| : version(version), |
| connection_id_length(length), |
| version_serialization(version_serialization) {} |
| |
| friend std::ostream& operator<<(std::ostream& os, const TestParams& p) { |
| os << "{ client_version: " << QuicVersionToString(p.version) |
| << " connection id length: " << p.connection_id_length |
| << " include version: " << p.version_serialization << " }"; |
| return os; |
| } |
| |
| QuicVersion version; |
| QuicConnectionIdLength connection_id_length; |
| bool version_serialization; |
| }; |
| |
| // Constructs various test permutations. |
| std::vector<TestParams> GetTestParams() { |
| std::vector<TestParams> params; |
| constexpr QuicConnectionIdLength kMax = PACKET_8BYTE_CONNECTION_ID; |
| QuicVersionVector all_supported_versions = AllSupportedVersions(); |
| for (size_t i = 0; i < all_supported_versions.size(); ++i) { |
| params.push_back(TestParams(all_supported_versions[i], true, kMax)); |
| params.push_back(TestParams(all_supported_versions[i], false, kMax)); |
| } |
| params.push_back( |
| TestParams(all_supported_versions[0], true, PACKET_0BYTE_CONNECTION_ID)); |
| params.push_back(TestParams(all_supported_versions[0], true, kMax)); |
| return params; |
| } |
| |
| class MockDelegate : public QuicPacketCreator::DelegateInterface { |
| public: |
| MockDelegate() {} |
| ~MockDelegate() override {} |
| |
| MOCK_METHOD1(OnSerializedPacket, void(SerializedPacket* packet)); |
| MOCK_METHOD3(OnUnrecoverableError, |
| void(QuicErrorCode, |
| const string&, |
| ConnectionCloseSource source)); |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(MockDelegate); |
| }; |
| |
| class QuicPacketCreatorTest : public QuicTestWithParam<TestParams> { |
| public: |
| void ClearSerializedPacketForTests(SerializedPacket* serialized_packet) { |
| if (serialized_packet == nullptr) { |
| return; |
| } |
| ClearSerializedPacket(serialized_packet); |
| } |
| |
| void SaveSerializedPacket(SerializedPacket* serialized_packet) { |
| if (serialized_packet == nullptr) { |
| return; |
| } |
| delete[] serialized_packet_.encrypted_buffer; |
| serialized_packet_ = *serialized_packet; |
| serialized_packet_.encrypted_buffer = CopyBuffer(*serialized_packet); |
| serialized_packet->retransmittable_frames.clear(); |
| } |
| |
| void DeleteSerializedPacket() { |
| delete[] serialized_packet_.encrypted_buffer; |
| serialized_packet_.encrypted_buffer = nullptr; |
| ClearSerializedPacket(&serialized_packet_); |
| } |
| |
| protected: |
| QuicPacketCreatorTest() |
| : server_framer_(SupportedVersions(GetParam().version), |
| QuicTime::Zero(), |
| Perspective::IS_SERVER), |
| client_framer_(SupportedVersions(GetParam().version), |
| QuicTime::Zero(), |
| Perspective::IS_CLIENT), |
| connection_id_(2), |
| data_("foo"), |
| creator_(connection_id_, |
| &client_framer_, |
| &buffer_allocator_, |
| &delegate_), |
| serialized_packet_(creator_.NoPacket()) { |
| creator_.set_connection_id_length(GetParam().connection_id_length); |
| |
| creator_.SetEncrypter(ENCRYPTION_INITIAL, |
| new NullEncrypter(Perspective::IS_CLIENT)); |
| creator_.SetEncrypter(ENCRYPTION_FORWARD_SECURE, |
| new NullEncrypter(Perspective::IS_CLIENT)); |
| client_framer_.set_visitor(&framer_visitor_); |
| server_framer_.set_visitor(&framer_visitor_); |
| } |
| |
| ~QuicPacketCreatorTest() override { |
| delete[] serialized_packet_.encrypted_buffer; |
| ClearSerializedPacket(&serialized_packet_); |
| } |
| |
| SerializedPacket SerializeAllFrames(const QuicFrames& frames) { |
| SerializedPacket packet = QuicPacketCreatorPeer::SerializeAllFrames( |
| &creator_, frames, buffer_, kMaxPacketSize); |
| EXPECT_EQ(QuicPacketCreatorPeer::GetEncryptionLevel(&creator_), |
| packet.encryption_level); |
| return packet; |
| } |
| |
| void ProcessPacket(const SerializedPacket& packet) { |
| QuicEncryptedPacket encrypted_packet(packet.encrypted_buffer, |
| packet.encrypted_length); |
| server_framer_.ProcessPacket(encrypted_packet); |
| } |
| |
| void CheckStreamFrame(const QuicFrame& frame, |
| QuicStreamId stream_id, |
| const string& data, |
| QuicStreamOffset offset, |
| bool fin) { |
| EXPECT_EQ(STREAM_FRAME, frame.type); |
| ASSERT_TRUE(frame.stream_frame); |
| EXPECT_EQ(stream_id, frame.stream_frame->stream_id); |
| EXPECT_EQ(data, QuicStringPiece(frame.stream_frame->data_buffer, |
| frame.stream_frame->data_length)); |
| EXPECT_EQ(offset, frame.stream_frame->offset); |
| EXPECT_EQ(fin, frame.stream_frame->fin); |
| } |
| |
| // Returns the number of bytes consumed by the header of packet, including |
| // the version. |
| size_t GetPacketHeaderOverhead(QuicVersion version) { |
| return GetPacketHeaderSize( |
| version, creator_.connection_id_length(), kIncludeVersion, |
| !kIncludeDiversificationNonce, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| } |
| |
| // Returns the number of bytes of overhead that will be added to a packet |
| // of maximum length. |
| size_t GetEncryptionOverhead() { |
| return creator_.max_packet_length() - |
| client_framer_.GetMaxPlaintextSize(creator_.max_packet_length()); |
| } |
| |
| // Returns the number of bytes consumed by the non-data fields of a stream |
| // frame, assuming it is the last frame in the packet |
| size_t GetStreamFrameOverhead() { |
| return QuicFramer::GetMinStreamFrameSize(kGetNthClientInitiatedStreamId1, |
| kOffset, true); |
| } |
| |
| QuicIOVector MakeIOVectorFromStringPiece(QuicStringPiece s) { |
| return MakeIOVector(s, &iov_); |
| } |
| |
| QuicPendingRetransmission CreateRetransmission( |
| const QuicFrames& retransmittable_frames, |
| bool has_crypto_handshake, |
| int num_padding_bytes, |
| EncryptionLevel encryption_level, |
| QuicPacketNumberLength packet_number_length) { |
| return QuicPendingRetransmission( |
| 1u, NOT_RETRANSMISSION, retransmittable_frames, has_crypto_handshake, |
| num_padding_bytes, encryption_level, packet_number_length); |
| } |
| |
| static const QuicStreamOffset kOffset = 1u; |
| |
| char buffer_[kMaxPacketSize]; |
| QuicFrames frames_; |
| QuicFramer server_framer_; |
| QuicFramer client_framer_; |
| StrictMock<MockFramerVisitor> framer_visitor_; |
| StrictMock<MockDelegate> delegate_; |
| QuicConnectionId connection_id_; |
| string data_; |
| struct iovec iov_; |
| SimpleBufferAllocator buffer_allocator_; |
| QuicPacketCreator creator_; |
| SerializedPacket serialized_packet_; |
| }; |
| |
| // Run all packet creator tests with all supported versions of QUIC, and with |
| // and without version in the packet header, as well as doing a run for each |
| // length of truncated connection id. |
| INSTANTIATE_TEST_CASE_P(QuicPacketCreatorTests, |
| QuicPacketCreatorTest, |
| ::testing::ValuesIn(GetTestParams())); |
| |
| TEST_P(QuicPacketCreatorTest, SerializeFrames) { |
| for (int i = ENCRYPTION_NONE; i < NUM_ENCRYPTION_LEVELS; ++i) { |
| EncryptionLevel level = static_cast<EncryptionLevel>(i); |
| creator_.set_encryption_level(level); |
| frames_.push_back(QuicFrame(new QuicAckFrame(MakeAckFrame(0u)))); |
| frames_.push_back(QuicFrame( |
| new QuicStreamFrame(kCryptoStreamId, false, 0u, QuicStringPiece()))); |
| frames_.push_back(QuicFrame( |
| new QuicStreamFrame(kCryptoStreamId, true, 0u, QuicStringPiece()))); |
| SerializedPacket serialized = SerializeAllFrames(frames_); |
| EXPECT_EQ(level, serialized.encryption_level); |
| delete frames_[0].ack_frame; |
| delete frames_[1].stream_frame; |
| delete frames_[2].stream_frame; |
| frames_.clear(); |
| |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnAckFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| ProcessPacket(serialized); |
| } |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ReserializeFramesWithSequenceNumberLength) { |
| // If the original packet number length, the current packet number |
| // length, and the configured send packet number length are different, the |
| // retransmit must sent with the original length and the others do not change. |
| QuicPacketCreatorPeer::SetPacketNumberLength(&creator_, |
| PACKET_2BYTE_PACKET_NUMBER); |
| QuicStreamFrame* stream_frame = new QuicStreamFrame( |
| kCryptoStreamId, /*fin=*/false, 0u, QuicStringPiece()); |
| QuicFrames frames; |
| frames.push_back(QuicFrame(stream_frame)); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, true /* has_crypto_handshake */, -1 /* needs full padding */, |
| ENCRYPTION_NONE, PACKET_1BYTE_PACKET_NUMBER)); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| // The packet number length is updated after every packet is sent, |
| // so there is no need to restore the old length after sending. |
| EXPECT_EQ(PACKET_1BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| EXPECT_EQ(PACKET_1BYTE_PACKET_NUMBER, |
| serialized_packet_.packet_number_length); |
| |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPaddingFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| ProcessPacket(serialized_packet_); |
| delete stream_frame; |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ReserializeCryptoFrameWithForwardSecurity) { |
| QuicStreamFrame* stream_frame = new QuicStreamFrame( |
| kCryptoStreamId, /*fin=*/false, 0u, QuicStringPiece()); |
| QuicFrames frames; |
| frames.push_back(QuicFrame(stream_frame)); |
| creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, true /* has_crypto_handshake */, -1 /* needs full padding */, |
| ENCRYPTION_NONE, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_))); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| EXPECT_EQ(ENCRYPTION_NONE, serialized_packet_.encryption_level); |
| delete stream_frame; |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ReserializeFrameWithForwardSecurity) { |
| QuicStreamFrame* stream_frame = |
| new QuicStreamFrame(0u, /*fin=*/false, 0u, QuicStringPiece()); |
| QuicFrames frames; |
| frames.push_back(QuicFrame(stream_frame)); |
| creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, false /* has_crypto_handshake */, 0 /* no padding */, |
| ENCRYPTION_NONE, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_))); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, serialized_packet_.encryption_level); |
| delete stream_frame; |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ReserializeFramesWithFullPadding) { |
| QuicFrame frame; |
| QuicIOVector io_vector( |
| MakeIOVectorFromStringPiece("fake handshake message data")); |
| QuicPacketCreatorPeer::CreateStreamFrame(&creator_, kCryptoStreamId, |
| io_vector, 0u, 0u, false, &frame); |
| QuicFrames frames; |
| frames.push_back(frame); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, true /* has_crypto_handshake */, -1 /* needs full padding */, |
| ENCRYPTION_NONE, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_))); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_.encrypted_length); |
| delete frame.stream_frame; |
| } |
| |
| TEST_P(QuicPacketCreatorTest, DoNotRetransmitPendingPadding) { |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece("fake message data")); |
| QuicPacketCreatorPeer::CreateStreamFrame(&creator_, kCryptoStreamId, |
| io_vector, 0u, 0u, false, &frame); |
| |
| const int kNumPaddingBytes1 = 4; |
| int packet_size = 0; |
| { |
| QuicFrames frames; |
| frames.push_back(frame); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, false /* has_crypto_handshake */, |
| kNumPaddingBytes1 /* padding bytes */, ENCRYPTION_NONE, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_))); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| packet_size = serialized_packet_.encrypted_length; |
| } |
| |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| // Pending paddings are not retransmitted. |
| EXPECT_CALL(framer_visitor_, OnPaddingFrame(_)).Times(0); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| ProcessPacket(serialized_packet_); |
| |
| const int kNumPaddingBytes2 = 44; |
| QuicFrames frames; |
| frames.push_back(frame); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, false /* has_crypto_handshake */, |
| kNumPaddingBytes2 /* padding bytes */, ENCRYPTION_NONE, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_))); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| |
| EXPECT_EQ(packet_size, serialized_packet_.encrypted_length); |
| delete frame.stream_frame; |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ReserializeFramesWithFullPacketAndPadding) { |
| const size_t overhead = GetPacketHeaderOverhead(client_framer_.version()) + |
| GetEncryptionOverhead() + GetStreamFrameOverhead(); |
| size_t capacity = kDefaultMaxPacketSize - overhead; |
| for (int delta = -5; delta <= 0; ++delta) { |
| string data(capacity + delta, 'A'); |
| size_t bytes_free = 0 - delta; |
| |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece(data)); |
| QuicPacketCreatorPeer::CreateStreamFrame( |
| &creator_, kCryptoStreamId, io_vector, 0, kOffset, false, &frame); |
| QuicFrames frames; |
| frames.push_back(frame); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, true /* has_crypto_handshake */, -1 /* needs full padding */, |
| ENCRYPTION_NONE, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_))); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| |
| // If there is not enough space in the packet to fit a padding frame |
| // (1 byte) and to expand the stream frame (another 2 bytes) the packet |
| // will not be padded. |
| if (bytes_free < 3) { |
| EXPECT_EQ(kDefaultMaxPacketSize - bytes_free, |
| serialized_packet_.encrypted_length); |
| } else { |
| EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_.encrypted_length); |
| } |
| |
| delete frame.stream_frame; |
| frames_.clear(); |
| } |
| } |
| |
| TEST_P(QuicPacketCreatorTest, SerializeConnectionClose) { |
| QuicConnectionCloseFrame frame; |
| frame.error_code = QUIC_NO_ERROR; |
| frame.error_details = "error"; |
| |
| QuicFrames frames; |
| frames.push_back(QuicFrame(&frame)); |
| SerializedPacket serialized = SerializeAllFrames(frames); |
| EXPECT_EQ(ENCRYPTION_NONE, serialized.encryption_level); |
| ASSERT_EQ(1u, serialized.packet_number); |
| ASSERT_EQ(1u, creator_.packet_number()); |
| |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnConnectionCloseFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| |
| ProcessPacket(serialized); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ConsumeData) { |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece("test")); |
| ASSERT_TRUE(creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, 0u, false, |
| false, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t consumed = frame.stream_frame->data_length; |
| EXPECT_EQ(4u, consumed); |
| CheckStreamFrame(frame, 1u, "test", 0u, false); |
| EXPECT_TRUE(creator_.HasPendingFrames()); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ConsumeDataFin) { |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece("test")); |
| ASSERT_TRUE(creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, 10u, true, |
| false, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t consumed = frame.stream_frame->data_length; |
| EXPECT_EQ(4u, consumed); |
| CheckStreamFrame(frame, 1u, "test", 10u, true); |
| EXPECT_TRUE(creator_.HasPendingFrames()); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ConsumeDataFinOnly) { |
| QuicFrame frame; |
| QuicIOVector io_vector(nullptr, 0, 0); |
| ASSERT_TRUE(creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, 0u, true, |
| false, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t consumed = frame.stream_frame->data_length; |
| EXPECT_EQ(0u, consumed); |
| CheckStreamFrame(frame, 1u, string(), 0u, true); |
| EXPECT_TRUE(creator_.HasPendingFrames()); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, CreateAllFreeBytesForStreamFrames) { |
| creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE); |
| const size_t overhead = GetPacketHeaderOverhead(client_framer_.version()) + |
| GetEncryptionOverhead(); |
| for (size_t i = overhead; i < overhead + 100; ++i) { |
| creator_.SetMaxPacketLength(i); |
| const bool should_have_room = i > overhead + GetStreamFrameOverhead(); |
| ASSERT_EQ(should_have_room, creator_.HasRoomForStreamFrame( |
| kGetNthClientInitiatedStreamId1, kOffset)); |
| if (should_have_room) { |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece("testdata")); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillRepeatedly(Invoke( |
| this, &QuicPacketCreatorTest::ClearSerializedPacketForTests)); |
| ASSERT_TRUE(creator_.ConsumeData(kGetNthClientInitiatedStreamId1, |
| io_vector, 0u, kOffset, false, false, |
| &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t bytes_consumed = frame.stream_frame->data_length; |
| EXPECT_LT(0u, bytes_consumed); |
| creator_.Flush(); |
| } |
| } |
| } |
| |
| TEST_P(QuicPacketCreatorTest, StreamFrameConsumption) { |
| creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE); |
| // Compute the total overhead for a single frame in packet. |
| const size_t overhead = GetPacketHeaderOverhead(client_framer_.version()) + |
| GetEncryptionOverhead() + GetStreamFrameOverhead(); |
| size_t capacity = kDefaultMaxPacketSize - overhead; |
| // Now, test various sizes around this size. |
| for (int delta = -5; delta <= 5; ++delta) { |
| string data(capacity + delta, 'A'); |
| size_t bytes_free = delta > 0 ? 0 : 0 - delta; |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece(data)); |
| ASSERT_TRUE(creator_.ConsumeData(kGetNthClientInitiatedStreamId1, io_vector, |
| 0u, kOffset, false, false, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| |
| // BytesFree() returns bytes available for the next frame, which will |
| // be two bytes smaller since the stream frame would need to be grown. |
| EXPECT_EQ(2u, creator_.ExpansionOnNewFrame()); |
| size_t expected_bytes_free = bytes_free < 3 ? 0 : bytes_free - 2; |
| EXPECT_EQ(expected_bytes_free, creator_.BytesFree()) << "delta: " << delta; |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.Flush(); |
| ASSERT_TRUE(serialized_packet_.encrypted_buffer); |
| DeleteSerializedPacket(); |
| } |
| } |
| |
| TEST_P(QuicPacketCreatorTest, CryptoStreamFramePacketPadding) { |
| // Compute the total overhead for a single frame in packet. |
| const size_t overhead = GetPacketHeaderOverhead(client_framer_.version()) + |
| GetEncryptionOverhead() + GetStreamFrameOverhead(); |
| ASSERT_GT(kMaxPacketSize, overhead); |
| size_t capacity = kDefaultMaxPacketSize - overhead; |
| // Now, test various sizes around this size. |
| for (int delta = -5; delta <= 5; ++delta) { |
| string data(capacity + delta, 'A'); |
| size_t bytes_free = delta > 0 ? 0 : 0 - delta; |
| |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece(data)); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillRepeatedly( |
| Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| ASSERT_TRUE(creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, kOffset, |
| false, true, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t bytes_consumed = frame.stream_frame->data_length; |
| EXPECT_LT(0u, bytes_consumed); |
| creator_.Flush(); |
| ASSERT_TRUE(serialized_packet_.encrypted_buffer); |
| // If there is not enough space in the packet to fit a padding frame |
| // (1 byte) and to expand the stream frame (another 2 bytes) the packet |
| // will not be padded. |
| if (bytes_free < 3) { |
| EXPECT_EQ(kDefaultMaxPacketSize - bytes_free, |
| serialized_packet_.encrypted_length); |
| } else { |
| EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_.encrypted_length); |
| } |
| DeleteSerializedPacket(); |
| } |
| } |
| |
| TEST_P(QuicPacketCreatorTest, NonCryptoStreamFramePacketNonPadding) { |
| creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE); |
| // Compute the total overhead for a single frame in packet. |
| const size_t overhead = GetPacketHeaderOverhead(client_framer_.version()) + |
| GetEncryptionOverhead() + GetStreamFrameOverhead(); |
| ASSERT_GT(kDefaultMaxPacketSize, overhead); |
| size_t capacity = kDefaultMaxPacketSize - overhead; |
| // Now, test various sizes around this size. |
| for (int delta = -5; delta <= 5; ++delta) { |
| string data(capacity + delta, 'A'); |
| size_t bytes_free = delta > 0 ? 0 : 0 - delta; |
| |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece(data)); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| ASSERT_TRUE(creator_.ConsumeData(kGetNthClientInitiatedStreamId1, io_vector, |
| 0u, kOffset, false, false, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t bytes_consumed = frame.stream_frame->data_length; |
| EXPECT_LT(0u, bytes_consumed); |
| creator_.Flush(); |
| ASSERT_TRUE(serialized_packet_.encrypted_buffer); |
| if (bytes_free > 0) { |
| EXPECT_EQ(kDefaultMaxPacketSize - bytes_free, |
| serialized_packet_.encrypted_length); |
| } else { |
| EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_.encrypted_length); |
| } |
| DeleteSerializedPacket(); |
| } |
| } |
| |
| TEST_P(QuicPacketCreatorTest, SerializeVersionNegotiationPacket) { |
| QuicFramerPeer::SetPerspective(&client_framer_, Perspective::IS_SERVER); |
| QuicVersionVector versions; |
| versions.push_back(test::QuicVersionMax()); |
| std::unique_ptr<QuicEncryptedPacket> encrypted( |
| creator_.SerializeVersionNegotiationPacket(versions)); |
| |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnVersionNegotiationPacket(_)); |
| } |
| QuicFramerPeer::SetPerspective(&client_framer_, Perspective::IS_CLIENT); |
| client_framer_.ProcessPacket(*encrypted); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, UpdatePacketSequenceNumberLengthLeastAwaiting) { |
| EXPECT_EQ(PACKET_1BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| QuicPacketCreatorPeer::SetPacketNumber(&creator_, 64); |
| creator_.UpdatePacketNumberLength(2, 10000 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_1BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| QuicPacketCreatorPeer::SetPacketNumber(&creator_, 64 * 256); |
| creator_.UpdatePacketNumberLength(2, 10000 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_2BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| QuicPacketCreatorPeer::SetPacketNumber(&creator_, 64 * 256 * 256); |
| creator_.UpdatePacketNumberLength(2, 10000 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_4BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| QuicPacketCreatorPeer::SetPacketNumber(&creator_, |
| UINT64_C(64) * 256 * 256 * 256 * 256); |
| creator_.UpdatePacketNumberLength(2, 10000 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_6BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, UpdatePacketSequenceNumberLengthCwnd) { |
| EXPECT_EQ(PACKET_1BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| creator_.UpdatePacketNumberLength(1, 10000 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_1BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| creator_.UpdatePacketNumberLength(1, 10000 * 256 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_2BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| creator_.UpdatePacketNumberLength(1, |
| 10000 * 256 * 256 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_4BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| |
| creator_.UpdatePacketNumberLength( |
| 1, UINT64_C(1000) * 256 * 256 * 256 * 256 / kDefaultMaxPacketSize); |
| EXPECT_EQ(PACKET_6BYTE_PACKET_NUMBER, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_)); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, SerializeFrame) { |
| if (!GetParam().version_serialization) { |
| creator_.StopSendingVersion(); |
| } |
| frames_.push_back(QuicFrame( |
| new QuicStreamFrame(kCryptoStreamId, false, 0u, QuicStringPiece()))); |
| SerializedPacket serialized = SerializeAllFrames(frames_); |
| delete frames_[0].stream_frame; |
| |
| QuicPacketHeader header; |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)) |
| .WillOnce(DoAll(SaveArg<0>(&header), Return(true))); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| ProcessPacket(serialized); |
| EXPECT_EQ(GetParam().version_serialization, |
| header.public_header.version_flag); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ConsumeDataLargerThanOneStreamFrame) { |
| if (!GetParam().version_serialization) { |
| creator_.StopSendingVersion(); |
| } |
| // A string larger than fits into a frame. |
| size_t payload_length; |
| creator_.SetMaxPacketLength(GetPacketLengthForOneStream( |
| client_framer_.version(), |
| QuicPacketCreatorPeer::SendVersionInPacket(&creator_), |
| !kIncludeDiversificationNonce, creator_.connection_id_length(), |
| PACKET_1BYTE_PACKET_NUMBER, &payload_length)); |
| QuicFrame frame; |
| const string too_long_payload(payload_length * 2, 'a'); |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece(too_long_payload)); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| ASSERT_TRUE(creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, 0u, true, |
| false, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t consumed = frame.stream_frame->data_length; |
| EXPECT_EQ(payload_length, consumed); |
| const string payload(payload_length, 'a'); |
| CheckStreamFrame(frame, 1u, payload, 0u, false); |
| creator_.Flush(); |
| DeleteSerializedPacket(); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, AddFrameAndFlush) { |
| if (!GetParam().version_serialization) { |
| creator_.StopSendingVersion(); |
| } |
| const size_t max_plaintext_size = |
| client_framer_.GetMaxPlaintextSize(creator_.max_packet_length()); |
| EXPECT_FALSE(creator_.HasPendingFrames()); |
| EXPECT_EQ(max_plaintext_size - |
| GetPacketHeaderSize( |
| client_framer_.version(), creator_.connection_id_length(), |
| QuicPacketCreatorPeer::SendVersionInPacket(&creator_), |
| !kIncludeDiversificationNonce, PACKET_1BYTE_PACKET_NUMBER), |
| creator_.BytesFree()); |
| |
| // Add a variety of frame types and then a padding frame. |
| QuicAckFrame ack_frame(MakeAckFrame(10u)); |
| EXPECT_TRUE(creator_.AddSavedFrame(QuicFrame(&ack_frame))); |
| EXPECT_TRUE(creator_.HasPendingFrames()); |
| |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece("test")); |
| ASSERT_TRUE(creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, 0u, false, |
| false, &frame)); |
| ASSERT_TRUE(frame.stream_frame); |
| size_t consumed = frame.stream_frame->data_length; |
| EXPECT_EQ(4u, consumed); |
| EXPECT_TRUE(creator_.HasPendingFrames()); |
| |
| QuicPaddingFrame padding_frame; |
| EXPECT_TRUE(creator_.AddSavedFrame(QuicFrame(padding_frame))); |
| EXPECT_TRUE(creator_.HasPendingFrames()); |
| EXPECT_EQ(0u, creator_.BytesFree()); |
| |
| // Packet is full. Creator will flush. |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| EXPECT_FALSE(creator_.AddSavedFrame(QuicFrame(&ack_frame))); |
| |
| // Ensure the packet is successfully created. |
| ASSERT_TRUE(serialized_packet_.encrypted_buffer); |
| ASSERT_FALSE(serialized_packet_.retransmittable_frames.empty()); |
| const QuicFrames& retransmittable = serialized_packet_.retransmittable_frames; |
| ASSERT_EQ(1u, retransmittable.size()); |
| EXPECT_EQ(STREAM_FRAME, retransmittable[0].type); |
| ASSERT_TRUE(retransmittable[0].stream_frame); |
| EXPECT_TRUE(serialized_packet_.has_ack); |
| if (FLAGS_quic_reloadable_flag_quic_no_stop_waiting_frames) { |
| EXPECT_EQ(10u, serialized_packet_.largest_acked); |
| } |
| DeleteSerializedPacket(); |
| |
| EXPECT_FALSE(creator_.HasPendingFrames()); |
| EXPECT_EQ(max_plaintext_size - |
| GetPacketHeaderSize( |
| client_framer_.version(), creator_.connection_id_length(), |
| QuicPacketCreatorPeer::SendVersionInPacket(&creator_), |
| !kIncludeDiversificationNonce, PACKET_1BYTE_PACKET_NUMBER), |
| creator_.BytesFree()); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, SerializeAndSendStreamFrame) { |
| if (!GetParam().version_serialization) { |
| creator_.StopSendingVersion(); |
| } |
| EXPECT_FALSE(creator_.HasPendingFrames()); |
| |
| QuicIOVector iov(MakeIOVectorFromStringPiece("test")); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| size_t num_bytes_consumed; |
| creator_.CreateAndSerializeStreamFrame(kHeadersStreamId, iov, 0, 0, true, |
| nullptr, &num_bytes_consumed); |
| EXPECT_EQ(4u, num_bytes_consumed); |
| |
| // Ensure the packet is successfully created. |
| ASSERT_TRUE(serialized_packet_.encrypted_buffer); |
| ASSERT_FALSE(serialized_packet_.retransmittable_frames.empty()); |
| const QuicFrames& retransmittable = serialized_packet_.retransmittable_frames; |
| ASSERT_EQ(1u, retransmittable.size()); |
| EXPECT_EQ(STREAM_FRAME, retransmittable[0].type); |
| ASSERT_TRUE(retransmittable[0].stream_frame); |
| DeleteSerializedPacket(); |
| |
| EXPECT_FALSE(creator_.HasPendingFrames()); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, AddUnencryptedStreamDataClosesConnection) { |
| creator_.set_encryption_level(ENCRYPTION_NONE); |
| EXPECT_CALL(delegate_, OnUnrecoverableError(_, _, _)); |
| QuicStreamFrame stream_frame(kHeadersStreamId, /*fin=*/false, 0u, |
| QuicStringPiece()); |
| EXPECT_QUIC_BUG(creator_.AddSavedFrame(QuicFrame(&stream_frame)), |
| "Cannot send stream data without encryption."); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ChloTooLarge) { |
| CryptoHandshakeMessage message; |
| message.set_tag(kCHLO); |
| message.set_minimum_size(kMaxPacketSize); |
| CryptoFramer framer; |
| std::unique_ptr<QuicData> message_data; |
| message_data.reset( |
| framer.ConstructHandshakeMessage(message, Perspective::IS_CLIENT)); |
| |
| struct iovec iov; |
| QuicIOVector data_iovec(MakeIOVector( |
| QuicStringPiece(message_data->data(), message_data->length()), &iov)); |
| QuicFrame frame; |
| EXPECT_CALL(delegate_, |
| OnUnrecoverableError(QUIC_CRYPTO_CHLO_TOO_LARGE, _, _)); |
| EXPECT_QUIC_BUG(creator_.ConsumeData(kCryptoStreamId, data_iovec, 0u, 0u, |
| false, false, &frame), |
| "Client hello won't fit in a single packet."); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, PendingPadding) { |
| EXPECT_EQ(0u, creator_.pending_padding_bytes()); |
| creator_.AddPendingPadding(kMaxNumRandomPaddingBytes * 10); |
| EXPECT_EQ(kMaxNumRandomPaddingBytes * 10, creator_.pending_padding_bytes()); |
| |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillRepeatedly( |
| Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| // Flush all paddings. |
| while (creator_.pending_padding_bytes() > 0) { |
| creator_.Flush(); |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnPaddingFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| // Packet only contains padding. |
| ProcessPacket(serialized_packet_); |
| } |
| EXPECT_EQ(0u, creator_.pending_padding_bytes()); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, FullPaddingDoesNotConsumePendingPadding) { |
| creator_.AddPendingPadding(kMaxNumRandomPaddingBytes); |
| QuicFrame frame; |
| QuicIOVector io_vector(MakeIOVectorFromStringPiece("test")); |
| ASSERT_TRUE(creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, 0u, false, |
| /*needs_full_padding=*/true, &frame)); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.Flush(); |
| EXPECT_EQ(kMaxNumRandomPaddingBytes, creator_.pending_padding_bytes()); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, SendPendingPaddingInRetransmission) { |
| QuicStreamFrame* stream_frame = new QuicStreamFrame( |
| kCryptoStreamId, /*fin=*/false, 0u, QuicStringPiece()); |
| QuicFrames frames; |
| frames.push_back(QuicFrame(stream_frame)); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission( |
| CreateRetransmission(frames, true, /*num_padding_bytes=*/0, |
| ENCRYPTION_NONE, PACKET_1BYTE_PACKET_NUMBER)); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.AddPendingPadding(kMaxNumRandomPaddingBytes); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| EXPECT_EQ(0u, creator_.pending_padding_bytes()); |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPaddingFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| ProcessPacket(serialized_packet_); |
| delete stream_frame; |
| } |
| |
| TEST_P(QuicPacketCreatorTest, SendPacketAfterFullPaddingRetransmission) { |
| // Making sure needs_full_padding gets reset after a full padding |
| // retransmission. |
| EXPECT_EQ(0u, creator_.pending_padding_bytes()); |
| QuicFrame frame; |
| QuicIOVector io_vector( |
| MakeIOVectorFromStringPiece("fake handshake message data")); |
| QuicPacketCreatorPeer::CreateStreamFrame(&creator_, kCryptoStreamId, |
| io_vector, 0u, 0u, false, &frame); |
| QuicFrames frames; |
| frames.push_back(frame); |
| char buffer[kMaxPacketSize]; |
| QuicPendingRetransmission retransmission(CreateRetransmission( |
| frames, true, /*num_padding_bytes=*/-1, ENCRYPTION_NONE, |
| QuicPacketCreatorPeer::GetPacketNumberLength(&creator_))); |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillRepeatedly( |
| Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| creator_.ReserializeAllFrames(retransmission, buffer, kMaxPacketSize); |
| EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_.encrypted_length); |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| // Full padding. |
| EXPECT_CALL(framer_visitor_, OnPaddingFrame(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| ProcessPacket(serialized_packet_); |
| delete frame.stream_frame; |
| |
| creator_.ConsumeData(kCryptoStreamId, io_vector, 0u, 0u, false, false, |
| &frame); |
| creator_.Flush(); |
| { |
| InSequence s; |
| EXPECT_CALL(framer_visitor_, OnPacket()); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_)); |
| EXPECT_CALL(framer_visitor_, OnPacketHeader(_)); |
| EXPECT_CALL(framer_visitor_, OnStreamFrame(_)); |
| // needs_full_padding gets reset. |
| EXPECT_CALL(framer_visitor_, OnPaddingFrame(_)).Times(0); |
| EXPECT_CALL(framer_visitor_, OnPacketComplete()); |
| } |
| ProcessPacket(serialized_packet_); |
| } |
| |
| TEST_P(QuicPacketCreatorTest, ConsumeDataAndRandomPadding) { |
| const QuicByteCount kStreamFramePayloadSize = 100u; |
| // Set the packet size be enough for one stream frame with 0 stream offset + |
| // 1. |
| size_t length = GetPacketHeaderOverhead(client_framer_.version()) + |
| GetEncryptionOverhead() + |
| QuicFramer::GetMinStreamFrameSize( |
| kCryptoStreamId, 0, /*last_frame_in_packet=*/false) + |
| kStreamFramePayloadSize + 1; |
| creator_.SetMaxPacketLength(length); |
| creator_.AddPendingPadding(kMaxNumRandomPaddingBytes); |
| QuicByteCount pending_padding_bytes = creator_.pending_padding_bytes(); |
| QuicFrame frame; |
| char buf[kStreamFramePayloadSize + 1] = {}; |
| EXPECT_CALL(delegate_, OnSerializedPacket(_)) |
| .WillRepeatedly( |
| Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket)); |
| // Send stream frame of size kStreamFramePayloadSize. |
| creator_.ConsumeData(kCryptoStreamId, |
| MakeIOVectorFromStringPiece( |
| QuicStringPiece(buf, kStreamFramePayloadSize)), |
| 0u, 0u, false, false, &frame); |
| creator_.Flush(); |
| delete frame.stream_frame; |
| // 1 byte padding is sent. |
| EXPECT_EQ(pending_padding_bytes - 1, creator_.pending_padding_bytes()); |
| // Send stream frame of size kStreamFramePayloadSize + 1. |
| creator_.ConsumeData(kCryptoStreamId, |
| MakeIOVectorFromStringPiece( |
| QuicStringPiece(buf, kStreamFramePayloadSize + 1)), |
| 0u, 0u, false, false, &frame); |
| // No padding is sent. |
| creator_.Flush(); |
| delete frame.stream_frame; |
| EXPECT_EQ(pending_padding_bytes - 1, creator_.pending_padding_bytes()); |
| // Flush all paddings. |
| while (creator_.pending_padding_bytes() > 0) { |
| creator_.Flush(); |
| } |
| EXPECT_EQ(0u, creator_.pending_padding_bytes()); |
| } |
| |
| } // namespace |
| } // namespace test |
| } // namespace net |
