blob: f0872b60f31ed31c42ceab92fe167f36cea23530 [file] [log] [blame]
// 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 {}
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, ConnectionCloseEmptyString) {
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);
// empty string,
std::string test_string = "Ich Bin Ein Jelly Donut?";
QuicConnectionCloseFrame sent_frame;
sent_frame.quic_error_code = static_cast<QuicErrorCode>(0);
sent_frame.error_details = test_string;
sent_frame.transport_close_frame_type = 123;
sent_frame.close_type = IETF_QUIC_TRANSPORT_CONNECTION_CLOSE;
// 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, static_cast<QuicErrorCode>(0));
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, ApplicationCloseEmptyString) {
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);
// empty string,
std::string test_string = "Ich Bin Ein Jelly Donut?";
QuicConnectionCloseFrame sent_frame;
sent_frame.quic_error_code = static_cast<QuicErrorCode>(0);
sent_frame.error_details = test_string;
sent_frame.close_type = IETF_QUIC_APPLICATION_CONNECTION_CLOSE;
// 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, static_cast<QuicErrorCode>(0));
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