| // Copyright (c) 2018 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. |
| |
| // gunit tests for the IETF-format framer --- generally does a simple test |
| // for each framer; we generate the template object (eg |
| // QuicIetfStreamFrame) with the correct stuff in it, ask that a frame |
| // be serialized (call AppendIetf<mumble>) then deserialized (call |
| // ProcessIetf<mumble>) and then check that the gazintas and gazoutas |
| // are the same. |
| // |
| // We do minimal checking of the serialized frame |
| // |
| // We do look at various different values (resulting in different |
| // length varints, etc) |
| |
| #include "net/third_party/quiche/src/quic/core/quic_framer.h" |
| |
| #include <algorithm> |
| #include <cstdint> |
| #include <map> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "net/third_party/quiche/src/quic/core/crypto/null_decrypter.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/null_encrypter.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/quic_decrypter.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/quic_encrypter.h" |
| #include "net/third_party/quiche/src/quic/core/quic_data_reader.h" |
| #include "net/third_party/quiche/src/quic/core/quic_data_writer.h" |
| #include "net/third_party/quiche/src/quic/core/quic_packets.h" |
| #include "net/third_party/quiche/src/quic/core/quic_utils.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_arraysize.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_logging.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_ptr_util.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_test.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_framer_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_test_utils.h" |
| #include "net/third_party/quiche/src/quic/test_tools/simple_data_producer.h" |
| |
| namespace quic { |
| namespace test { |
| namespace { |
| |
| const size_t kNormalPacketBufferSize = 1400; |
| // Several different stream ids, should be encoded |
| // in 8, 4, 2, and 1 byte, respectively. Last one |
| // checks that value==0 works. |
| // All stream IDs end in 0x0, so the client/server- initiated |
| // and Uni/Bi-directional bits are available to alter, as any |
| // given test may wish. |
| const QuicIetfStreamId kStreamId8 = UINT64_C(0x3EDCBA9876543210); |
| const QuicIetfStreamId kStreamId4 = UINT64_C(0x36543210); |
| const QuicIetfStreamId kStreamId2 = UINT64_C(0x3210); |
| const QuicIetfStreamId kStreamId1 = UINT64_C(0x10); |
| const QuicIetfStreamId kStreamId0 = UINT64_C(0x00); |
| |
| // Ditto for the offsets. |
| const QuicIetfStreamOffset kOffset8 = UINT64_C(0x3210BA9876543210); |
| const QuicIetfStreamOffset kOffset4 = UINT64_C(0x32109876); |
| const QuicIetfStreamOffset kOffset2 = UINT64_C(0x3456); |
| const QuicIetfStreamOffset kOffset1 = UINT64_C(0x3f); |
| const QuicIetfStreamOffset kOffset0 = UINT64_C(0x00); |
| |
| // Structures used to create various ack frames. |
| |
| // Defines an ack frame to feed through the framer/deframer. |
| struct ack_frame { |
| uint64_t delay_time; |
| bool is_ack_ecn; |
| QuicPacketCount ect_0_count; |
| QuicPacketCount ect_1_count; |
| QuicPacketCount ecn_ce_count; |
| const std::vector<QuicAckBlock>& ranges; |
| uint64_t expected_frame_type; |
| }; |
| |
| class TestQuicVisitor : public QuicFramerVisitorInterface { |
| public: |
| TestQuicVisitor() {} |
| |
| ~TestQuicVisitor() override {} |
| |
| void OnError(QuicFramer* f) override { |
| QUIC_DLOG(INFO) << "QuicIetfFramer Error: " |
| << QuicErrorCodeToString(f->error()) << " (" << f->error() |
| << ")"; |
| } |
| |
| void OnPacket() override {} |
| |
| void OnPublicResetPacket(const QuicPublicResetPacket& /*packet*/) override {} |
| |
| void OnVersionNegotiationPacket( |
| const QuicVersionNegotiationPacket& /*packet*/) override {} |
| |
| void OnRetryPacket(QuicConnectionId /*original_connection_id*/, |
| QuicConnectionId /*new_connection_id*/, |
| QuicStringPiece /*retry_token*/) override {} |
| |
| bool OnProtocolVersionMismatch( |
| ParsedQuicVersion /*received_version*/) override { |
| return false; |
| } |
| |
| bool OnUnauthenticatedPublicHeader( |
| const QuicPacketHeader& /*header*/) override { |
| return true; |
| } |
| |
| bool OnUnauthenticatedHeader(const QuicPacketHeader& /*header*/) override { |
| return true; |
| } |
| |
| void OnDecryptedPacket(EncryptionLevel /*level*/) override {} |
| |
| bool OnPacketHeader(const QuicPacketHeader& /*header*/) override { |
| return true; |
| } |
| |
| void OnCoalescedPacket(const QuicEncryptedPacket& /*packet*/) override {} |
| |
| void OnUndecryptablePacket(const QuicEncryptedPacket& /*packet*/, |
| EncryptionLevel /*decryption_level*/, |
| bool /*has_decryption_key*/) override {} |
| |
| bool OnStreamFrame(const QuicStreamFrame& /*frame*/) override { return true; } |
| |
| bool OnCryptoFrame(const QuicCryptoFrame& /*frame*/) override { return true; } |
| |
| bool OnAckFrameStart(QuicPacketNumber /*largest_acked*/, |
| QuicTime::Delta /*ack_delay_time*/) override { |
| return true; |
| } |
| |
| bool OnAckRange(QuicPacketNumber /*start*/, |
| QuicPacketNumber /*end*/) override { |
| return true; |
| } |
| |
| bool OnAckTimestamp(QuicPacketNumber /*packet_number*/, |
| QuicTime /*timestamp*/) override { |
| return true; |
| } |
| |
| bool OnAckFrameEnd(QuicPacketNumber /*start*/) override { return true; } |
| |
| bool OnStopWaitingFrame(const QuicStopWaitingFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnPaddingFrame(const QuicPaddingFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnPingFrame(const QuicPingFrame& /*frame*/) override { return true; } |
| |
| bool OnMessageFrame(const QuicMessageFrame& /*frame*/) override { |
| return true; |
| } |
| |
| void OnPacketComplete() override {} |
| |
| bool OnRstStreamFrame(const QuicRstStreamFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnConnectionCloseFrame( |
| const QuicConnectionCloseFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnStopSendingFrame(const QuicStopSendingFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnPathChallengeFrame(const QuicPathChallengeFrame& /*frame*/) override { |
| return true; |
| } |
| bool OnPathResponseFrame(const QuicPathResponseFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnGoAwayFrame(const QuicGoAwayFrame& /*frame*/) override { return true; } |
| |
| bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnBlockedFrame(const QuicBlockedFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnNewConnectionIdFrame( |
| const QuicNewConnectionIdFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnRetireConnectionIdFrame( |
| const QuicRetireConnectionIdFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnNewTokenFrame(const QuicNewTokenFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool IsValidStatelessResetToken(QuicUint128 /*token*/) const override { |
| return true; |
| } |
| |
| void OnAuthenticatedIetfStatelessResetPacket( |
| const QuicIetfStatelessResetPacket& /*packet*/) override {} |
| |
| bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& /*frame*/) override { |
| return true; |
| } |
| |
| bool OnStreamsBlockedFrame( |
| const QuicStreamsBlockedFrame& /*frame*/) override { |
| return true; |
| } |
| }; |
| |
| class QuicIetfFramerTest : public QuicTestWithParam<ParsedQuicVersion> { |
| public: |
| QuicIetfFramerTest() |
| : start_(QuicTime::Zero() + QuicTime::Delta::FromMicroseconds(0x10)), |
| framer_(AllSupportedVersions(), |
| start_, |
| Perspective::IS_SERVER, |
| kQuicDefaultConnectionIdLength) { |
| framer_.set_visitor(&visitor_); |
| } |
| |
| // Utility functions to do actual framing/deframing. |
| void TryStreamFrame(char* packet_buffer, |
| size_t packet_buffer_size, |
| const char* xmit_packet_data, |
| size_t xmit_packet_data_size, |
| QuicIetfStreamId stream_id, |
| QuicIetfStreamOffset offset, |
| bool fin_bit, |
| bool last_frame_bit, |
| QuicIetfFrameType frame_type) { |
| // initialize a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(packet_buffer_size, packet_buffer, |
| NETWORK_BYTE_ORDER); // do not really care |
| // about endianness. |
| // set up to define the source frame we wish to send. |
| QuicStreamFrame source_stream_frame( |
| stream_id, fin_bit, offset, xmit_packet_data, xmit_packet_data_size); |
| |
| // Write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendIetfStreamFrame( |
| &framer_, source_stream_frame, last_frame_bit, &writer)); |
| // Better have something in the packet buffer. |
| EXPECT_NE(0u, writer.length()); |
| // Now set up a reader to read in the frame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| // A StreamFrame to hold the results... we know the frame type, |
| // put it into the QuicIetfStreamFrame |
| QuicStreamFrame sink_stream_frame; |
| if (xmit_packet_data_size) { |
| EXPECT_EQ(sink_stream_frame.data_buffer, nullptr); |
| EXPECT_EQ(sink_stream_frame.data_length, 0u); |
| } |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessIetfStreamFrame( |
| &framer_, &reader, frame_type, &sink_stream_frame)); |
| |
| // Now check that the streamid, fin-bit, offset, and |
| // data len all match the input. |
| EXPECT_EQ(sink_stream_frame.stream_id, source_stream_frame.stream_id); |
| EXPECT_EQ(sink_stream_frame.fin, source_stream_frame.fin); |
| EXPECT_EQ(sink_stream_frame.data_length, source_stream_frame.data_length); |
| if (frame_type & IETF_STREAM_FRAME_OFF_BIT) { |
| // There was an offset in the frame, see if xmit and rcv vales equal. |
| EXPECT_EQ(sink_stream_frame.offset, source_stream_frame.offset); |
| } else { |
| // Offset not in frame, so it better come out 0. |
| EXPECT_EQ(sink_stream_frame.offset, 0u); |
| } |
| if (xmit_packet_data_size) { |
| ASSERT_NE(sink_stream_frame.data_buffer, nullptr); |
| ASSERT_NE(source_stream_frame.data_buffer, nullptr); |
| EXPECT_EQ(strcmp(sink_stream_frame.data_buffer, |
| source_stream_frame.data_buffer), |
| 0); |
| } else { |
| // No data in the frame. |
| EXPECT_EQ(source_stream_frame.data_length, 0u); |
| EXPECT_EQ(sink_stream_frame.data_length, 0u); |
| } |
| } |
| |
| // Overall ack frame encode/decode/compare function |
| // Encodes an ack frame as specified at |*frame| |
| // Then decodes the frame, |
| // Then compares the two |
| // Does some basic checking: |
| // - did the writer write something? |
| // - did the reader read the entire packet? |
| // - did the things the reader read match what the writer wrote? |
| // Returns true if it all worked false if not. |
| bool TryAckFrame(char* packet_buffer, |
| size_t /*packet_buffer_size*/, |
| struct ack_frame* frame) { |
| QuicAckFrame transmit_frame = InitAckFrame(frame->ranges); |
| if (frame->is_ack_ecn) { |
| transmit_frame.ecn_counters_populated = true; |
| transmit_frame.ect_0_count = frame->ect_0_count; |
| transmit_frame.ect_1_count = frame->ect_1_count; |
| transmit_frame.ecn_ce_count = frame->ecn_ce_count; |
| } |
| transmit_frame.ack_delay_time = |
| QuicTime::Delta::FromMicroseconds(frame->delay_time); |
| size_t expected_size = |
| QuicFramerPeer::GetIetfAckFrameSize(&framer_, transmit_frame); |
| |
| // Make a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(expected_size, packet_buffer, NETWORK_BYTE_ORDER); |
| |
| // Write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendIetfAckFrameAndTypeByte( |
| &framer_, transmit_frame, &writer)); |
| |
| size_t expected_frame_length = QuicFramerPeer::ComputeFrameLength( |
| &framer_, QuicFrame(&transmit_frame), false, |
| static_cast<QuicPacketNumberLength>(123456u)); |
| |
| // Encoded length should match what ComputeFrameLength returns |
| EXPECT_EQ(expected_frame_length, writer.length()); |
| // and what is in the buffer should be the expected size. |
| EXPECT_EQ(expected_size, writer.length()) << "Frame is " << transmit_frame; |
| // Now set up a reader to read in the frame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| // read in the frame type |
| uint8_t received_frame_type; |
| EXPECT_TRUE(reader.ReadUInt8(&received_frame_type)); |
| EXPECT_EQ(frame->expected_frame_type, received_frame_type); |
| |
| // an AckFrame to hold the results |
| QuicAckFrame receive_frame; |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessIetfAckFrame( |
| &framer_, &reader, received_frame_type, &receive_frame)); |
| |
| if (frame->is_ack_ecn && |
| (frame->ect_0_count || frame->ect_1_count || frame->ecn_ce_count)) { |
| EXPECT_TRUE(receive_frame.ecn_counters_populated); |
| EXPECT_EQ(receive_frame.ect_0_count, frame->ect_0_count); |
| EXPECT_EQ(receive_frame.ect_1_count, frame->ect_1_count); |
| EXPECT_EQ(receive_frame.ecn_ce_count, frame->ecn_ce_count); |
| } else { |
| EXPECT_FALSE(receive_frame.ecn_counters_populated); |
| EXPECT_EQ(receive_frame.ect_0_count, 0u); |
| EXPECT_EQ(receive_frame.ect_1_count, 0u); |
| EXPECT_EQ(receive_frame.ecn_ce_count, 0u); |
| } |
| |
| // Now check that the received frame matches the sent frame. |
| EXPECT_EQ(transmit_frame.largest_acked, receive_frame.largest_acked); |
| // The ~0x7 needs some explaining. The ack frame format down shifts the |
| // delay time by 3 (divide by 8) to allow for greater ranges in delay time. |
| // Therefore, if we give the framer a delay time that is not an |
| // even multiple of 8, the value that the deframer produces will |
| // not be the same as what the framer got. The downshift on |
| // framing and upshift on deframing results in clearing the 3 |
| // low-order bits ... The masking basically does the same thing, |
| // so the compare works properly. |
| return true; |
| } |
| |
| // encode, decode, and check a Path Challenge frame. |
| bool TryPathChallengeFrame(char* packet_buffer, |
| size_t packet_buffer_size, |
| const QuicPathFrameBuffer& data) { |
| // Make a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(packet_buffer_size, packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| QuicPathChallengeFrame transmit_frame(0, data); |
| |
| // write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendPathChallengeFrame( |
| &framer_, transmit_frame, &writer)); |
| |
| // Check for correct length in the packet buffer. |
| EXPECT_EQ(kQuicPathChallengeFrameSize, writer.length()); |
| |
| // now set up a reader to read in the frame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| QuicPathChallengeFrame receive_frame; |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessPathChallengeFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Now check that the received frame matches the sent frame. |
| EXPECT_EQ( |
| 0, memcmp(transmit_frame.data_buffer.data(), |
| receive_frame.data_buffer.data(), kQuicPathFrameBufferSize)); |
| return true; |
| } |
| |
| // encode, decode, and check a Path Response frame. |
| bool TryPathResponseFrame(char* packet_buffer, |
| size_t packet_buffer_size, |
| const QuicPathFrameBuffer& data) { |
| // Make a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(packet_buffer_size, packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| QuicPathResponseFrame transmit_frame(0, data); |
| |
| // Write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendPathResponseFrame( |
| &framer_, transmit_frame, &writer)); |
| |
| // Check for correct length in the packet buffer. |
| EXPECT_EQ(kQuicPathResponseFrameSize, writer.length()); |
| |
| // Set up a reader to read in the frame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| QuicPathResponseFrame receive_frame; |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessPathResponseFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Now check that the received frame matches the sent frame. |
| EXPECT_EQ( |
| 0, memcmp(transmit_frame.data_buffer.data(), |
| receive_frame.data_buffer.data(), kQuicPathFrameBufferSize)); |
| return true; |
| } |
| |
| // Test the Serialization/deserialization of a Reset Stream Frame. |
| void TryResetFrame(char* packet_buffer, |
| size_t packet_buffer_size, |
| QuicStreamId stream_id, |
| uint16_t error_code, |
| QuicStreamOffset final_offset) { |
| // Initialize a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(packet_buffer_size, packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| QuicRstStreamFrame transmit_frame(static_cast<QuicControlFrameId>(1), |
| stream_id, error_code, final_offset); |
| |
| // Write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendIetfResetStreamFrame( |
| &framer_, transmit_frame, &writer)); |
| // Check that the size of the serialzed frame is in the allowed range (3 to |
| // 24 bytes, inclusive). |
| EXPECT_LT(2u, writer.length()); |
| EXPECT_GT(25u, writer.length()); |
| // Now set up a reader to read in the thing in. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| // A QuicRstStreamFrame to hold the results |
| QuicRstStreamFrame receive_frame; |
| EXPECT_TRUE(QuicFramerPeer::ProcessIetfResetStreamFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Now check that the received values match the input. |
| EXPECT_EQ(receive_frame.stream_id, transmit_frame.stream_id); |
| EXPECT_EQ(receive_frame.ietf_error_code, transmit_frame.ietf_error_code); |
| EXPECT_EQ(receive_frame.byte_offset, transmit_frame.byte_offset); |
| } |
| |
| void TryMaxStreamsFrame(QuicStreamCount stream_count, |
| bool unidirectional, |
| bool stream_id_server_initiated) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| Perspective old_perspective = framer_.perspective(); |
| // Set up the writer and transmit QuicMaxStreamsFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| // Set the perspective of the sender. If the stream id is supposed to |
| // be server-initiated, then the sender of the MAX_STREAMS should be |
| // a client, and vice versa. Do this prior to constructing the frame or |
| // generating the packet, so that any internal dependencies are satisfied. |
| QuicFramerPeer::SetPerspective(&framer_, (stream_id_server_initiated) |
| ? Perspective::IS_CLIENT |
| : Perspective::IS_SERVER); |
| QuicMaxStreamsFrame transmit_frame(0, stream_count, unidirectional); |
| |
| // Add the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendMaxStreamsFrame(&framer_, transmit_frame, |
| &writer)); |
| |
| // Check that buffer length is in the expected range |
| EXPECT_LE(1u, writer.length()); |
| EXPECT_GE(8u, writer.length()); |
| |
| // Set the perspective for the receiver. |
| QuicFramerPeer::SetPerspective(&framer_, (stream_id_server_initiated) |
| ? Perspective::IS_SERVER |
| : Perspective::IS_CLIENT); |
| |
| // Set up reader and empty receive QuicPaddingFrame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicMaxStreamsFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE(QuicFramerPeer::ProcessMaxStreamsFrame( |
| &framer_, &reader, &receive_frame, |
| (unidirectional) ? IETF_MAX_STREAMS_UNIDIRECTIONAL |
| : IETF_MAX_STREAMS_BIDIRECTIONAL)) |
| << " Error: " << framer_.detailed_error(); |
| |
| // Now check that received and sent data are equivalent |
| EXPECT_EQ(stream_count, receive_frame.stream_count); |
| EXPECT_EQ(transmit_frame.stream_count, receive_frame.stream_count); |
| QuicFramerPeer::SetPerspective(&framer_, old_perspective); |
| } |
| |
| void TryStreamsBlockedFrame(QuicStreamCount stream_count, |
| bool unidirectional, |
| bool stream_id_server_initiated) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| Perspective old_perspective = framer_.perspective(); |
| // Set up the writer and transmit QuicStreamsBlockedFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| // Set the perspective of the sender. If the stream id is supposed to |
| // be server-initiated, then the sender of the STREAMS_BLOCKED should be |
| // a client, and vice versa. Do this prior to constructing the frame or |
| // generating the packet, so that any internal dependencies are satisfied. |
| QuicFramerPeer::SetPerspective(&framer_, (stream_id_server_initiated) |
| ? Perspective::IS_SERVER |
| : Perspective::IS_CLIENT); |
| QuicStreamsBlockedFrame transmit_frame(0, stream_count, unidirectional); |
| |
| // Add the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendStreamsBlockedFrame( |
| &framer_, transmit_frame, &writer)); |
| |
| // Check that buffer length is in the expected range |
| EXPECT_LE(1u, writer.length()); |
| EXPECT_GE(8u, writer.length()); |
| |
| // Set the perspective for the receiver. |
| QuicFramerPeer::SetPerspective(&framer_, (stream_id_server_initiated) |
| ? Perspective::IS_CLIENT |
| : Perspective::IS_SERVER); |
| |
| // Set up reader and empty receive QuicPaddingFrame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicStreamsBlockedFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE(QuicFramerPeer::ProcessStreamsBlockedFrame( |
| &framer_, &reader, &receive_frame, |
| (unidirectional) ? IETF_STREAMS_BLOCKED_UNIDIRECTIONAL |
| : IETF_STREAMS_BLOCKED_BIDIRECTIONAL)); |
| |
| // Now check that received and sent data are equivalent |
| EXPECT_EQ(stream_count, receive_frame.stream_count); |
| EXPECT_EQ(transmit_frame.stream_count, receive_frame.stream_count); |
| QuicFramerPeer::SetPerspective(&framer_, old_perspective); |
| } |
| |
| QuicTime start_; |
| QuicFramer framer_; |
| test::TestQuicVisitor visitor_; |
| }; |
| |
| struct stream_frame_variant { |
| QuicIetfStreamId stream_id; |
| QuicIetfStreamOffset offset; |
| bool fin_bit; |
| bool last_frame_bit; |
| uint8_t frame_type; |
| } stream_frame_to_test[] = { |
| #define IETF_STREAM0 (((uint8_t)IETF_STREAM)) |
| |
| #define IETF_STREAM1 (((uint8_t)IETF_STREAM) | IETF_STREAM_FRAME_FIN_BIT) |
| |
| #define IETF_STREAM2 (((uint8_t)IETF_STREAM) | IETF_STREAM_FRAME_LEN_BIT) |
| |
| #define IETF_STREAM3 \ |
| (((uint8_t)IETF_STREAM) | IETF_STREAM_FRAME_LEN_BIT | \ |
| IETF_STREAM_FRAME_FIN_BIT) |
| |
| #define IETF_STREAM4 (((uint8_t)IETF_STREAM) | IETF_STREAM_FRAME_OFF_BIT) |
| |
| #define IETF_STREAM5 \ |
| (((uint8_t)IETF_STREAM) | IETF_STREAM_FRAME_OFF_BIT | \ |
| IETF_STREAM_FRAME_FIN_BIT) |
| |
| #define IETF_STREAM6 \ |
| (((uint8_t)IETF_STREAM) | IETF_STREAM_FRAME_OFF_BIT | \ |
| IETF_STREAM_FRAME_LEN_BIT) |
| |
| #define IETF_STREAM7 \ |
| (((uint8_t)IETF_STREAM) | IETF_STREAM_FRAME_OFF_BIT | \ |
| IETF_STREAM_FRAME_LEN_BIT | IETF_STREAM_FRAME_FIN_BIT) |
| |
| {kStreamId8, kOffset8, true, false, IETF_STREAM7}, |
| {kStreamId8, kOffset8, false, false, IETF_STREAM6}, |
| {kStreamId8, kOffset4, true, false, IETF_STREAM7}, |
| {kStreamId8, kOffset4, false, false, IETF_STREAM6}, |
| {kStreamId8, kOffset2, true, false, IETF_STREAM7}, |
| {kStreamId8, kOffset2, false, false, IETF_STREAM6}, |
| {kStreamId8, kOffset1, true, false, IETF_STREAM7}, |
| {kStreamId8, kOffset1, false, false, IETF_STREAM6}, |
| {kStreamId8, kOffset0, true, false, IETF_STREAM3}, |
| {kStreamId8, kOffset0, false, false, IETF_STREAM2}, |
| {kStreamId4, kOffset8, true, false, IETF_STREAM7}, |
| {kStreamId4, kOffset8, false, false, IETF_STREAM6}, |
| {kStreamId4, kOffset4, true, false, IETF_STREAM7}, |
| {kStreamId4, kOffset4, false, false, IETF_STREAM6}, |
| {kStreamId4, kOffset2, true, false, IETF_STREAM7}, |
| {kStreamId4, kOffset2, false, false, IETF_STREAM6}, |
| {kStreamId4, kOffset1, true, false, IETF_STREAM7}, |
| {kStreamId4, kOffset1, false, false, IETF_STREAM6}, |
| {kStreamId4, kOffset0, true, false, IETF_STREAM3}, |
| {kStreamId4, kOffset0, false, false, IETF_STREAM2}, |
| {kStreamId2, kOffset8, true, false, IETF_STREAM7}, |
| {kStreamId2, kOffset8, false, false, IETF_STREAM6}, |
| {kStreamId2, kOffset4, true, false, IETF_STREAM7}, |
| {kStreamId2, kOffset4, false, false, IETF_STREAM6}, |
| {kStreamId2, kOffset2, true, false, IETF_STREAM7}, |
| {kStreamId2, kOffset2, false, false, IETF_STREAM6}, |
| {kStreamId2, kOffset1, true, false, IETF_STREAM7}, |
| {kStreamId2, kOffset1, false, false, IETF_STREAM6}, |
| {kStreamId2, kOffset0, true, false, IETF_STREAM3}, |
| {kStreamId2, kOffset0, false, false, IETF_STREAM2}, |
| {kStreamId1, kOffset8, true, false, IETF_STREAM7}, |
| {kStreamId1, kOffset8, false, false, IETF_STREAM6}, |
| {kStreamId1, kOffset4, true, false, IETF_STREAM7}, |
| {kStreamId1, kOffset4, false, false, IETF_STREAM6}, |
| {kStreamId1, kOffset2, true, false, IETF_STREAM7}, |
| {kStreamId1, kOffset2, false, false, IETF_STREAM6}, |
| {kStreamId1, kOffset1, true, false, IETF_STREAM7}, |
| {kStreamId1, kOffset1, false, false, IETF_STREAM6}, |
| {kStreamId1, kOffset0, true, false, IETF_STREAM3}, |
| {kStreamId1, kOffset0, false, false, IETF_STREAM2}, |
| {kStreamId0, kOffset8, true, false, IETF_STREAM7}, |
| {kStreamId0, kOffset8, false, false, IETF_STREAM6}, |
| {kStreamId0, kOffset4, true, false, IETF_STREAM7}, |
| {kStreamId0, kOffset4, false, false, IETF_STREAM6}, |
| {kStreamId0, kOffset2, true, false, IETF_STREAM7}, |
| {kStreamId0, kOffset2, false, false, IETF_STREAM6}, |
| {kStreamId0, kOffset1, true, false, IETF_STREAM7}, |
| {kStreamId0, kOffset1, false, false, IETF_STREAM6}, |
| {kStreamId0, kOffset0, true, false, IETF_STREAM3}, |
| {kStreamId0, kOffset0, false, false, IETF_STREAM2}, |
| |
| {kStreamId8, kOffset8, true, true, IETF_STREAM5}, |
| {kStreamId8, kOffset8, false, true, IETF_STREAM4}, |
| {kStreamId8, kOffset4, true, true, IETF_STREAM5}, |
| {kStreamId8, kOffset4, false, true, IETF_STREAM4}, |
| {kStreamId8, kOffset2, true, true, IETF_STREAM5}, |
| {kStreamId8, kOffset2, false, true, IETF_STREAM4}, |
| {kStreamId8, kOffset1, true, true, IETF_STREAM5}, |
| {kStreamId8, kOffset1, false, true, IETF_STREAM4}, |
| {kStreamId8, kOffset0, true, true, IETF_STREAM1}, |
| {kStreamId8, kOffset0, false, true, IETF_STREAM0}, |
| {kStreamId4, kOffset8, true, true, IETF_STREAM5}, |
| {kStreamId4, kOffset8, false, true, IETF_STREAM4}, |
| {kStreamId4, kOffset4, true, true, IETF_STREAM5}, |
| {kStreamId4, kOffset4, false, true, IETF_STREAM4}, |
| {kStreamId4, kOffset2, true, true, IETF_STREAM5}, |
| {kStreamId4, kOffset2, false, true, IETF_STREAM4}, |
| {kStreamId4, kOffset1, true, true, IETF_STREAM5}, |
| {kStreamId4, kOffset1, false, true, IETF_STREAM4}, |
| {kStreamId4, kOffset0, true, true, IETF_STREAM1}, |
| {kStreamId4, kOffset0, false, true, IETF_STREAM0}, |
| {kStreamId2, kOffset8, true, true, IETF_STREAM5}, |
| {kStreamId2, kOffset8, false, true, IETF_STREAM4}, |
| {kStreamId2, kOffset4, true, true, IETF_STREAM5}, |
| {kStreamId2, kOffset4, false, true, IETF_STREAM4}, |
| {kStreamId2, kOffset2, true, true, IETF_STREAM5}, |
| {kStreamId2, kOffset2, false, true, IETF_STREAM4}, |
| {kStreamId2, kOffset1, true, true, IETF_STREAM5}, |
| {kStreamId2, kOffset1, false, true, IETF_STREAM4}, |
| {kStreamId2, kOffset0, true, true, IETF_STREAM1}, |
| {kStreamId2, kOffset0, false, true, IETF_STREAM0}, |
| {kStreamId1, kOffset8, true, true, IETF_STREAM5}, |
| {kStreamId1, kOffset8, false, true, IETF_STREAM4}, |
| {kStreamId1, kOffset4, true, true, IETF_STREAM5}, |
| {kStreamId1, kOffset4, false, true, IETF_STREAM4}, |
| {kStreamId1, kOffset2, true, true, IETF_STREAM5}, |
| {kStreamId1, kOffset2, false, true, IETF_STREAM4}, |
| {kStreamId1, kOffset1, true, true, IETF_STREAM5}, |
| {kStreamId1, kOffset1, false, true, IETF_STREAM4}, |
| {kStreamId1, kOffset0, true, true, IETF_STREAM1}, |
| {kStreamId1, kOffset0, false, true, IETF_STREAM0}, |
| {kStreamId0, kOffset8, true, true, IETF_STREAM5}, |
| {kStreamId0, kOffset8, false, true, IETF_STREAM4}, |
| {kStreamId0, kOffset4, true, true, IETF_STREAM5}, |
| {kStreamId0, kOffset4, false, true, IETF_STREAM4}, |
| {kStreamId0, kOffset2, true, true, IETF_STREAM5}, |
| {kStreamId0, kOffset2, false, true, IETF_STREAM4}, |
| {kStreamId0, kOffset1, true, true, IETF_STREAM5}, |
| {kStreamId0, kOffset1, false, true, IETF_STREAM4}, |
| {kStreamId0, kOffset0, true, true, IETF_STREAM1}, |
| {kStreamId0, kOffset0, false, true, IETF_STREAM0}, |
| }; |
| |
| TEST_F(QuicIetfFramerTest, StreamFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| const char* transmit_packet_data = |
| "this is a test of some packet data, " |
| "can do a simple strcmp to see if the " |
| "input and output are the same!"; |
| |
| size_t transmit_packet_data_len = strlen(transmit_packet_data) + 1; |
| for (size_t i = 0; i < QUIC_ARRAYSIZE(stream_frame_to_test); ++i) { |
| SCOPED_TRACE(i); |
| struct stream_frame_variant* variant = &stream_frame_to_test[i]; |
| TryStreamFrame(packet_buffer, sizeof(packet_buffer), transmit_packet_data, |
| transmit_packet_data_len, variant->stream_id, |
| variant->offset, variant->fin_bit, variant->last_frame_bit, |
| static_cast<QuicIetfFrameType>(variant->frame_type)); |
| } |
| } |
| // As the previous test, but with no data. |
| TEST_F(QuicIetfFramerTest, ZeroLengthStreamFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| for (size_t i = 0; i < QUIC_ARRAYSIZE(stream_frame_to_test); ++i) { |
| SCOPED_TRACE(i); |
| struct stream_frame_variant* variant = &stream_frame_to_test[i]; |
| TryStreamFrame(packet_buffer, sizeof(packet_buffer), |
| /* xmit_packet_data = */ NULL, |
| /* xmit_packet_data_size = */ 0, variant->stream_id, |
| variant->offset, variant->fin_bit, variant->last_frame_bit, |
| static_cast<QuicIetfFrameType>(variant->frame_type)); |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, CryptoFrame) { |
| SimpleDataProducer data_producer; |
| framer_.set_data_producer(&data_producer); |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| QuicStringPiece frame_data("This is a CRYPTO frame."); |
| |
| QuicStreamOffset offsets[] = {kOffset8, kOffset4, kOffset2, kOffset1, |
| kOffset0}; |
| for (QuicStreamOffset offset : offsets) { |
| QuicCryptoFrame frame(ENCRYPTION_INITIAL, offset, frame_data.length()); |
| data_producer.SaveCryptoData(ENCRYPTION_INITIAL, offset, frame_data); |
| |
| QuicDataWriter writer(QUIC_ARRAYSIZE(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| // Write the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendCryptoFrame(&framer_, frame, &writer)); |
| EXPECT_NE(0u, writer.length()); |
| // Read it back. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicCryptoFrame read_frame; |
| EXPECT_TRUE( |
| QuicFramerPeer::ProcessCryptoFrame(&framer_, &reader, &read_frame)); |
| |
| // Check that the frames match: |
| QuicStringPiece read_data(read_frame.data_buffer, read_frame.data_length); |
| EXPECT_EQ(read_frame.data_length, frame.data_length); |
| EXPECT_EQ(read_frame.offset, frame.offset); |
| EXPECT_EQ(read_data, frame_data); |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, ConnectionClose) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| // initialize a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| std::string test_string = "Ich Bin Ein Jelly Donut?"; |
| QuicConnectionCloseFrame sent_frame(QUIC_VERSION_99, QUIC_NO_ERROR, |
| test_string, |
| /*transport_close_frame_type=*/123); |
| |
| // write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendIetfConnectionCloseFrame( |
| &framer_, sent_frame, &writer)); |
| |
| // better have something in the packet buffer. |
| EXPECT_NE(0u, writer.length()); |
| |
| // now set up a reader to read in the frame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| // a QuicConnectionCloseFrame to hold the results. |
| QuicConnectionCloseFrame sink_frame; |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessIetfConnectionCloseFrame( |
| &framer_, &reader, IETF_QUIC_TRANSPORT_CONNECTION_CLOSE, &sink_frame)); |
| |
| // Now check that received == sent |
| EXPECT_EQ(sent_frame.quic_error_code, sink_frame.quic_error_code); |
| EXPECT_EQ(sink_frame.quic_error_code, QUIC_NO_ERROR); |
| EXPECT_EQ(sink_frame.error_details, test_string); |
| EXPECT_EQ(sink_frame.close_type, sent_frame.close_type); |
| EXPECT_EQ(sent_frame.close_type, IETF_QUIC_TRANSPORT_CONNECTION_CLOSE); |
| } |
| |
| TEST_F(QuicIetfFramerTest, ApplicationClose) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| // initialize a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| std::string test_string = "Ich Bin Ein Jelly Donut?"; |
| QuicConnectionCloseFrame sent_frame(QUIC_VERSION_99, QUIC_LAST_ERROR, |
| test_string, |
| /*transport_close_frame_type=*/0); |
| |
| // write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendIetfConnectionCloseFrame( |
| &framer_, sent_frame, &writer)); |
| |
| // better have something in the packet buffer. |
| EXPECT_NE(0u, writer.length()); |
| |
| // now set up a reader to read in the frame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| // a QuicConnectionCloseFrame to hold the results. |
| QuicConnectionCloseFrame sink_frame; |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessIetfConnectionCloseFrame( |
| &framer_, &reader, IETF_QUIC_APPLICATION_CONNECTION_CLOSE, &sink_frame)); |
| |
| // Now check that received == sent |
| EXPECT_EQ(sink_frame.quic_error_code, QUIC_LAST_ERROR); |
| EXPECT_EQ(sent_frame.quic_error_code, sink_frame.quic_error_code); |
| EXPECT_EQ(sink_frame.error_details, test_string); |
| EXPECT_EQ(sent_frame.close_type, IETF_QUIC_APPLICATION_CONNECTION_CLOSE); |
| EXPECT_EQ(sent_frame.close_type, sink_frame.close_type); |
| } |
| |
| // Testing for the IETF ACK framer. |
| // clang-format off |
| struct ack_frame ack_frame_variants[] = { |
| {90000, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1000), QuicPacketNumber(2001)}}, |
| IETF_ACK}, |
| {0, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1000), QuicPacketNumber(2001)}}, |
| IETF_ACK}, |
| {1, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(2)}, |
| {QuicPacketNumber(5), QuicPacketNumber(6)}}, |
| IETF_ACK}, |
| {63, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(2)}, |
| {QuicPacketNumber(5), QuicPacketNumber(6)}}, |
| IETF_ACK}, |
| {64, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(2)}, |
| {QuicPacketNumber(3), QuicPacketNumber(4)}, |
| {QuicPacketNumber(5), QuicPacketNumber(6)}, |
| {QuicPacketNumber(7), QuicPacketNumber(8)}, |
| {QuicPacketNumber(9), QuicPacketNumber(10)}, |
| {QuicPacketNumber(11), QuicPacketNumber(12)}}, |
| IETF_ACK}, |
| {10000, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(2)}, |
| {QuicPacketNumber(3), QuicPacketNumber(4)}, |
| {QuicPacketNumber(5), QuicPacketNumber(6)}, |
| {QuicPacketNumber(7), QuicPacketNumber(8)}, |
| {QuicPacketNumber(9), QuicPacketNumber(10)}, |
| {QuicPacketNumber(11), QuicPacketNumber(12)}}, |
| IETF_ACK}, |
| {100000000, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(2)}, |
| {QuicPacketNumber(3), QuicPacketNumber(4)}, |
| {QuicPacketNumber(5), QuicPacketNumber(6)}, |
| {QuicPacketNumber(7), QuicPacketNumber(8)}, |
| {QuicPacketNumber(9), QuicPacketNumber(10)}, |
| {QuicPacketNumber(11), QuicPacketNumber(12)}}, |
| IETF_ACK}, |
| {0, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}}, |
| IETF_ACK}, |
| {9223372036854775807, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(11)}, |
| {QuicPacketNumber(74), QuicPacketNumber(138)}}, |
| IETF_ACK}, |
| // This ack is for packets 60 & 125. There are 64 packets in the gap. |
| // The encoded value is gap_size - 1, or 63. Crosses a VarInt62 encoding |
| // boundary... |
| {1, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(60), QuicPacketNumber(61)}, |
| {QuicPacketNumber(125), QuicPacketNumber(126)}}, |
| IETF_ACK}, |
| {2, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(130)}}, |
| IETF_ACK}, |
| {3, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(195)}}, |
| IETF_ACK}, |
| {4, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(194)}}, |
| IETF_ACK}, |
| {5, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(193)}}, |
| IETF_ACK}, |
| {6, |
| false, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(192)}}, |
| IETF_ACK}, |
| // declare some ack_ecn frames to try. |
| {6, |
| false, |
| 100, |
| 200, |
| 300, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(192)}}, |
| IETF_ACK}, |
| {6, |
| true, |
| 100, |
| 200, |
| 300, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(192)}}, |
| IETF_ACK_ECN}, |
| {6, |
| true, |
| 100, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(192)}}, |
| IETF_ACK_ECN}, |
| {6, |
| true, |
| 0, |
| 200, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(192)}}, |
| IETF_ACK_ECN}, |
| {6, |
| true, |
| 0, |
| 0, |
| 300, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(192)}}, |
| IETF_ACK_ECN}, |
| {6, |
| true, |
| 0, |
| 0, |
| 0, |
| {{QuicPacketNumber(1), QuicPacketNumber(65)}, |
| {QuicPacketNumber(129), QuicPacketNumber(192)}}, |
| IETF_ACK}, |
| }; |
| // clang-format on |
| |
| TEST_F(QuicIetfFramerTest, AckFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| for (auto ack_frame_variant : ack_frame_variants) { |
| EXPECT_TRUE( |
| TryAckFrame(packet_buffer, sizeof(packet_buffer), &ack_frame_variant)); |
| } |
| } |
| |
| // Test the case of having a QuicAckFrame with no ranges in it. By |
| // examination of the Google Quic Ack code and tests, this case should |
| // be handled as an ack with no "ranges after the first"; the |
| // AckBlockCount should be 0 and the FirstAckBlock should be |
| // |LargestAcked| - 1 (number of packets preceding the LargestAcked. |
| TEST_F(QuicIetfFramerTest, AckFrameNoRanges) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| // Make a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| QuicAckFrame transmit_frame; |
| transmit_frame.largest_acked = QuicPacketNumber(1); |
| transmit_frame.ack_delay_time = QuicTime::Delta::FromMicroseconds(0); |
| |
| size_t expected_size = |
| QuicFramerPeer::GetIetfAckFrameSize(&framer_, transmit_frame); |
| // Write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendIetfAckFrameAndTypeByte( |
| &framer_, transmit_frame, &writer)); |
| |
| uint8_t packet[] = { |
| 0x02, // type, IETF_ACK |
| 0x01, // largest_acked, |
| 0x00, // delay |
| 0x00, // count of additional ack blocks |
| 0x00, // size of first ack block (packets preceding largest_acked) |
| }; |
| EXPECT_EQ(expected_size, sizeof(packet)); |
| EXPECT_EQ(sizeof(packet), writer.length()); |
| EXPECT_EQ(0, memcmp(packet, packet_buffer, writer.length())); |
| |
| // Now set up a reader to read in the frame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| // an AckFrame to hold the results |
| QuicAckFrame receive_frame; |
| |
| // read in the frame type |
| uint8_t received_frame_type; |
| EXPECT_TRUE(reader.ReadUInt8(&received_frame_type)); |
| EXPECT_EQ(received_frame_type, IETF_ACK); |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessIetfAckFrame(&framer_, &reader, IETF_ACK, |
| &receive_frame)); |
| |
| // Now check that the received frame matches the sent frame. |
| EXPECT_EQ(transmit_frame.largest_acked, receive_frame.largest_acked); |
| } |
| |
| TEST_F(QuicIetfFramerTest, PathChallengeFrame) { |
| // Double-braces needed on some platforms due to |
| // https://bugs.llvm.org/show_bug.cgi?id=21629 |
| QuicPathFrameBuffer buffer0 = {{0, 0, 0, 0, 0, 0, 0, 0}}; |
| QuicPathFrameBuffer buffer1 = { |
| {0x80, 0x91, 0xa2, 0xb3, 0xc4, 0xd5, 0xe5, 0xf7}}; |
| char packet_buffer[kNormalPacketBufferSize]; |
| EXPECT_TRUE( |
| TryPathChallengeFrame(packet_buffer, sizeof(packet_buffer), buffer0)); |
| EXPECT_TRUE( |
| TryPathChallengeFrame(packet_buffer, sizeof(packet_buffer), buffer1)); |
| } |
| |
| TEST_F(QuicIetfFramerTest, PathResponseFrame) { |
| // Double-braces needed on some platforms due to |
| // https://bugs.llvm.org/show_bug.cgi?id=21629 |
| QuicPathFrameBuffer buffer0 = {{0, 0, 0, 0, 0, 0, 0, 0}}; |
| QuicPathFrameBuffer buffer1 = { |
| {0x80, 0x91, 0xa2, 0xb3, 0xc4, 0xd5, 0xe5, 0xf7}}; |
| char packet_buffer[kNormalPacketBufferSize]; |
| EXPECT_TRUE( |
| TryPathResponseFrame(packet_buffer, sizeof(packet_buffer), buffer0)); |
| EXPECT_TRUE( |
| TryPathResponseFrame(packet_buffer, sizeof(packet_buffer), buffer1)); |
| } |
| |
| TEST_F(QuicIetfFramerTest, ResetStreamFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| struct resets { |
| QuicStreamId stream_id; |
| uint16_t error_code; |
| QuicStreamOffset final_offset; |
| } reset_frames[] = { |
| {0, 55, 0}, |
| {0x10, 73, 0x300}, |
| }; |
| for (auto reset : reset_frames) { |
| TryResetFrame(packet_buffer, sizeof(packet_buffer), reset.stream_id, |
| reset.error_code, reset.final_offset); |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, StopSendingFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| // Make a writer so that the serialized packet is placed in |
| // packet_buffer. |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| QuicStopSendingFrame transmit_frame; |
| transmit_frame.stream_id = 12345; |
| transmit_frame.application_error_code = 543; |
| |
| // Write the frame to the packet buffer. |
| EXPECT_TRUE(QuicFramerPeer::AppendStopSendingFrame(&framer_, transmit_frame, |
| &writer)); |
| // Check that the number of bytes in the buffer is in the |
| // allowed range. |
| EXPECT_LE(3u, writer.length()); |
| EXPECT_GE(10u, writer.length()); |
| |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| |
| // A frame to hold the results |
| QuicStopSendingFrame receive_frame; |
| |
| EXPECT_TRUE(QuicFramerPeer::ProcessStopSendingFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Verify that the transmitted and received values are the same. |
| EXPECT_EQ(receive_frame.stream_id, 12345u); |
| EXPECT_EQ(receive_frame.application_error_code, 543u); |
| EXPECT_EQ(receive_frame.stream_id, transmit_frame.stream_id); |
| EXPECT_EQ(receive_frame.application_error_code, |
| transmit_frame.application_error_code); |
| } |
| |
| TEST_F(QuicIetfFramerTest, MaxDataFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| QuicStreamOffset window_sizes[] = {0, 1, 2, 5, 10, |
| 20, 50, 100, 200, 500, |
| 1000000, kOffset8, kOffset4, kOffset2}; |
| for (QuicStreamOffset window_size : window_sizes) { |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| // Set up the writer and transmit QuicWindowUpdateFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| QuicWindowUpdateFrame transmit_frame(0, 99, window_size); |
| |
| // Add the frame. |
| EXPECT_TRUE( |
| QuicFramerPeer::AppendMaxDataFrame(&framer_, transmit_frame, &writer)); |
| |
| // Check that the number of bytes in the buffer is in the expected range. |
| EXPECT_LE(1u, writer.length()); |
| EXPECT_GE(8u, writer.length()); |
| |
| // Set up reader and an empty QuicWindowUpdateFrame |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicWindowUpdateFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE( |
| QuicFramerPeer::ProcessMaxDataFrame(&framer_, &reader, &receive_frame)); |
| |
| // Now check that the received data equals the sent data. |
| EXPECT_EQ(transmit_frame.byte_offset, window_size); |
| EXPECT_EQ(transmit_frame.byte_offset, receive_frame.byte_offset); |
| EXPECT_EQ(QuicUtils::GetInvalidStreamId(framer_.transport_version()), |
| receive_frame.stream_id); |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, MaxStreamDataFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| QuicStreamOffset window_sizes[] = {0, 1, 2, 5, 10, |
| 20, 50, 100, 200, 500, |
| 1000000, kOffset8, kOffset4, kOffset2}; |
| QuicIetfStreamId stream_ids[] = {kStreamId4, kStreamId2, kStreamId1, |
| kStreamId0}; |
| |
| for (QuicIetfStreamId stream_id : stream_ids) { |
| for (QuicStreamOffset window_size : window_sizes) { |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| // Set up the writer and transmit QuicWindowUpdateFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| QuicWindowUpdateFrame transmit_frame(0, stream_id, window_size); |
| |
| // Add the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendMaxStreamDataFrame( |
| &framer_, transmit_frame, &writer)); |
| |
| // Check that number of bytes in the buffer is in the expected range. |
| EXPECT_LE(2u, writer.length()); |
| EXPECT_GE(16u, writer.length()); |
| |
| // Set up reader and empty receive QuicPaddingFrame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicWindowUpdateFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE(QuicFramerPeer::ProcessMaxStreamDataFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Now check that received data and sent data are equal. |
| EXPECT_EQ(transmit_frame.byte_offset, window_size); |
| EXPECT_EQ(transmit_frame.byte_offset, receive_frame.byte_offset); |
| EXPECT_EQ(stream_id, receive_frame.stream_id); |
| EXPECT_EQ(transmit_frame.stream_id, receive_frame.stream_id); |
| } |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, MaxStreamsFrame) { |
| QuicStreamCount stream_counts[] = {0x3fffffff, 0x3fff, 0x3f, 0x1}; |
| |
| for (QuicStreamCount stream_count : stream_counts) { |
| // Cover all four combinations of uni/bi-directional and |
| // server-/client- initiation. |
| TryMaxStreamsFrame(stream_count, /*unidirectional=*/true, |
| /*stream_id_server_initiated=*/true); |
| TryMaxStreamsFrame(stream_count, /*unidirectional=*/true, |
| /*stream_id_server_initiated=*/false); |
| TryMaxStreamsFrame(stream_count, /*unidirectional=*/false, |
| /*stream_id_server_initiated=*/true); |
| TryMaxStreamsFrame(stream_count, /*unidirectional=*/false, |
| /*stream_id_server_initiated=*/false); |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, BlockedFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| QuicStreamOffset offsets[] = {kOffset8, kOffset4, kOffset2, kOffset1, |
| kOffset0}; |
| |
| for (QuicStreamOffset offset : offsets) { |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| // Set up the writer and transmit QuicBlockedFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| QuicBlockedFrame transmit_frame( |
| 0, QuicUtils::GetInvalidStreamId(framer_.transport_version()), offset); |
| |
| // Add the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendIetfBlockedFrame(&framer_, transmit_frame, |
| &writer)); |
| |
| // Check that buffer length is in the expected range |
| EXPECT_LE(1u, writer.length()); |
| EXPECT_GE(8u, writer.length()); |
| |
| // Set up reader and empty receive QuicFrame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicBlockedFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE(QuicFramerPeer::ProcessIetfBlockedFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Check that received and sent data are equivalent |
| EXPECT_EQ(QuicUtils::GetInvalidStreamId(framer_.transport_version()), |
| receive_frame.stream_id); |
| EXPECT_EQ(offset, receive_frame.offset); |
| EXPECT_EQ(transmit_frame.offset, receive_frame.offset); |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, StreamBlockedFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| QuicStreamOffset offsets[] = {0, 1, 2, 5, 10, |
| 20, 50, 100, 200, 500, |
| 1000000, kOffset8, kOffset4, kOffset2}; |
| QuicIetfStreamId stream_ids[] = {kStreamId4, kStreamId2, kStreamId1, |
| kStreamId0}; |
| |
| for (QuicIetfStreamId stream_id : stream_ids) { |
| for (QuicStreamOffset offset : offsets) { |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| // Set up the writer and transmit QuicWindowUpdateFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| QuicBlockedFrame transmit_frame(0, stream_id, offset); |
| |
| // Add the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendStreamBlockedFrame( |
| &framer_, transmit_frame, &writer)); |
| |
| // Check that number of bytes in the buffer is in the expected range. |
| EXPECT_LE(2u, writer.length()); |
| EXPECT_GE(16u, writer.length()); |
| |
| // Set up reader and empty receive QuicPaddingFrame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicBlockedFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE(QuicFramerPeer::ProcessStreamBlockedFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Now check that received == sent |
| EXPECT_EQ(transmit_frame.offset, offset); |
| EXPECT_EQ(transmit_frame.offset, receive_frame.offset); |
| EXPECT_EQ(stream_id, receive_frame.stream_id); |
| EXPECT_EQ(transmit_frame.stream_id, receive_frame.stream_id); |
| } |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, StreamsBlockedFrame) { |
| QuicStreamCount stream_counts[] = {0x3fffffff, 0x3fff, 0x3f, 0x1}; |
| |
| for (QuicStreamCount stream_count : stream_counts) { |
| TryStreamsBlockedFrame(stream_count, |
| /*unidirectional=*/false, |
| /*stream_id_server_initiated=*/false); |
| TryStreamsBlockedFrame(stream_count, |
| /*unidirectional=*/false, |
| /*stream_id_server_initiated=*/true); |
| TryStreamsBlockedFrame(stream_count, |
| /*unidirectional=*/true, |
| /*stream_id_server_initiated=*/false); |
| TryStreamsBlockedFrame(stream_count, |
| /*unidirectional=*/true, |
| /*stream_id_server_initiated=*/true); |
| } |
| } |
| |
| TEST_F(QuicIetfFramerTest, NewConnectionIdFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| QuicNewConnectionIdFrame transmit_frame; |
| transmit_frame.connection_id = TestConnectionId(UINT64_C(0x0edcba9876543201)); |
| transmit_frame.sequence_number = 0x01020304; |
| transmit_frame.retire_prior_to = 0x00020304; |
| // The token is defined as a uint128 -- a 16-byte integer. |
| // The value is set in this manner because we want each |
| // byte to have a specific value so that the binary |
| // packet check (below) is good. If we used integer |
| // operations (eg. "token = 0x12345...") then the bytes |
| // would be set in host order. |
| unsigned char token_bytes[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, |
| 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, |
| 0x0c, 0x0d, 0x0e, 0x0f}; |
| memcpy(&transmit_frame.stateless_reset_token, token_bytes, |
| sizeof(transmit_frame.stateless_reset_token)); |
| |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| // Set up the writer and transmit a QuicNewConnectionIdFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| // Add the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendNewConnectionIdFrame( |
| &framer_, transmit_frame, &writer)); |
| // clang-format off |
| uint8_t packet[] = { |
| // sequence number, 0x80 for varint62 encoding |
| 0x80 + 0x01, 0x02, 0x03, 0x04, |
| // retire_prior_to, 0x80 for varint62 encoding |
| 0x80 + 0x00, 0x02, 0x03, 0x04, |
| // new connection id length, is not varint62 encoded. |
| 0x08, |
| // new connection id, is not varint62 encoded. |
| 0x0E, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x01, |
| // the reset token: |
| 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f |
| }; |
| // clang-format on |
| |
| // Check that buffer length is correct |
| EXPECT_EQ(sizeof(packet), writer.length()); |
| EXPECT_EQ(0, memcmp(packet_buffer, packet, sizeof(packet))); |
| |
| // Set up reader and empty receive QuicPaddingFrame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicNewConnectionIdFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE(QuicFramerPeer::ProcessNewConnectionIdFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Now check that received == sent |
| EXPECT_EQ(transmit_frame.connection_id, receive_frame.connection_id); |
| EXPECT_EQ(transmit_frame.sequence_number, receive_frame.sequence_number); |
| EXPECT_EQ(transmit_frame.retire_prior_to, receive_frame.retire_prior_to); |
| EXPECT_EQ(transmit_frame.stateless_reset_token, |
| receive_frame.stateless_reset_token); |
| } |
| |
| TEST_F(QuicIetfFramerTest, RetireConnectionIdFrame) { |
| char packet_buffer[kNormalPacketBufferSize]; |
| |
| QuicRetireConnectionIdFrame transmit_frame; |
| transmit_frame.sequence_number = 0x01020304; |
| |
| memset(packet_buffer, 0, sizeof(packet_buffer)); |
| |
| // Set up the writer and transmit QuicRetireConnectionIdFrame |
| QuicDataWriter writer(sizeof(packet_buffer), packet_buffer, |
| NETWORK_BYTE_ORDER); |
| |
| // Add the frame. |
| EXPECT_TRUE(QuicFramerPeer::AppendRetireConnectionIdFrame( |
| &framer_, transmit_frame, &writer)); |
| // Check that buffer length is correct |
| EXPECT_EQ(4u, writer.length()); |
| // clang-format off |
| uint8_t packet[] = { |
| // sequence number, 0x80 for varint62 encoding |
| 0x80 + 0x01, 0x02, 0x03, 0x04, |
| }; |
| |
| // clang-format on |
| EXPECT_EQ(0, memcmp(packet_buffer, packet, sizeof(packet))); |
| |
| // Set up reader and empty receive QuicPaddingFrame. |
| QuicDataReader reader(packet_buffer, writer.length(), NETWORK_BYTE_ORDER); |
| QuicRetireConnectionIdFrame receive_frame; |
| |
| // Deframe it |
| EXPECT_TRUE(QuicFramerPeer::ProcessRetireConnectionIdFrame(&framer_, &reader, |
| &receive_frame)); |
| |
| // Now check that received == sent |
| EXPECT_EQ(transmit_frame.sequence_number, receive_frame.sequence_number); |
| } |
| |
| } // namespace |
| } // namespace test |
| } // namespace quic |
