mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 13:50:40 +01:00
b87746b155
Quite a large commit, but mostly trivial. It adds all the (in dcSCTP) supported parameters, error causes and chunks as an object model, with serializers and deserializers. They are verified with packet captures where available, that have been captured with Wireshark against a reference implementation. This _could_ be split in parameter/ as one commit, error_cause/ in the following, and chunk/ as the third, but as each chunk/parameter is completely isolated from the other, reviewing it should be linear with the number of chunks/parameters and having them in more commits wouldn't change that, taken all those three commits into account. Bug: webrtc:12614 Change-Id: Ie83c9a22cae6e3a39e35ef26fd532837a6387a08 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/213347 Commit-Queue: Victor Boivie <boivie@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33625}
113 lines
4.5 KiB
C++
113 lines
4.5 KiB
C++
/*
|
|
* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
#include "net/dcsctp/packet/chunk/init_chunk.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <type_traits>
|
|
#include <vector>
|
|
|
|
#include "net/dcsctp/packet/parameter/forward_tsn_supported_parameter.h"
|
|
#include "net/dcsctp/packet/parameter/parameter.h"
|
|
#include "net/dcsctp/packet/parameter/supported_extensions_parameter.h"
|
|
#include "net/dcsctp/testing/testing_macros.h"
|
|
#include "rtc_base/gunit.h"
|
|
#include "test/gmock.h"
|
|
|
|
namespace dcsctp {
|
|
namespace {
|
|
|
|
TEST(InitChunkTest, FromCapture) {
|
|
/*
|
|
INIT chunk (Outbound streams: 1000, inbound streams: 1000)
|
|
Chunk type: INIT (1)
|
|
Chunk flags: 0x00
|
|
Chunk length: 90
|
|
Initiate tag: 0xde7a1690
|
|
Advertised receiver window credit (a_rwnd): 131072
|
|
Number of outbound streams: 1000
|
|
Number of inbound streams: 1000
|
|
Initial TSN: 621623272
|
|
ECN parameter
|
|
Parameter type: ECN (0x8000)
|
|
Parameter length: 4
|
|
Forward TSN supported parameter
|
|
Parameter type: Forward TSN supported (0xc000)
|
|
Parameter length: 4
|
|
Supported Extensions parameter (Supported types: FORWARD_TSN, AUTH,
|
|
ASCONF, ASCONF_ACK, RE_CONFIG) Parameter type: Supported Extensions (0x8008)
|
|
Parameter length: 9
|
|
Supported chunk type: FORWARD_TSN (192)
|
|
Supported chunk type: AUTH (15)
|
|
Supported chunk type: ASCONF (193)
|
|
Supported chunk type: ASCONF_ACK (128)
|
|
Supported chunk type: RE_CONFIG (130)
|
|
Parameter padding: 000000
|
|
Random parameter
|
|
Parameter type: Random (0x8002)
|
|
Parameter length: 36
|
|
Random number: ab314462121a1513fd5a5f69efaa06e9abd748cc3bd14b60…
|
|
Requested HMAC Algorithm parameter (Supported HMACs: SHA-1)
|
|
Parameter type: Requested HMAC Algorithm (0x8004)
|
|
Parameter length: 6
|
|
HMAC identifier: SHA-1 (1)
|
|
Parameter padding: 0000
|
|
Authenticated Chunk list parameter (Chunk types to be authenticated:
|
|
ASCONF_ACK, ASCONF) Parameter type: Authenticated Chunk list (0x8003)
|
|
Parameter length: 6
|
|
Chunk type: ASCONF_ACK (128)
|
|
Chunk type: ASCONF (193)
|
|
*/
|
|
|
|
uint8_t data[] = {
|
|
0x01, 0x00, 0x00, 0x5a, 0xde, 0x7a, 0x16, 0x90, 0x00, 0x02, 0x00, 0x00,
|
|
0x03, 0xe8, 0x03, 0xe8, 0x25, 0x0d, 0x37, 0xe8, 0x80, 0x00, 0x00, 0x04,
|
|
0xc0, 0x00, 0x00, 0x04, 0x80, 0x08, 0x00, 0x09, 0xc0, 0x0f, 0xc1, 0x80,
|
|
0x82, 0x00, 0x00, 0x00, 0x80, 0x02, 0x00, 0x24, 0xab, 0x31, 0x44, 0x62,
|
|
0x12, 0x1a, 0x15, 0x13, 0xfd, 0x5a, 0x5f, 0x69, 0xef, 0xaa, 0x06, 0xe9,
|
|
0xab, 0xd7, 0x48, 0xcc, 0x3b, 0xd1, 0x4b, 0x60, 0xed, 0x7f, 0xa6, 0x44,
|
|
0xce, 0x4d, 0xd2, 0xad, 0x80, 0x04, 0x00, 0x06, 0x00, 0x01, 0x00, 0x00,
|
|
0x80, 0x03, 0x00, 0x06, 0x80, 0xc1, 0x00, 0x00};
|
|
|
|
ASSERT_HAS_VALUE_AND_ASSIGN(InitChunk chunk, InitChunk::Parse(data));
|
|
|
|
EXPECT_EQ(chunk.initiate_tag(), VerificationTag(0xde7a1690));
|
|
EXPECT_EQ(chunk.a_rwnd(), 131072u);
|
|
EXPECT_EQ(chunk.nbr_outbound_streams(), 1000u);
|
|
EXPECT_EQ(chunk.nbr_inbound_streams(), 1000u);
|
|
EXPECT_EQ(chunk.initial_tsn(), TSN(621623272u));
|
|
EXPECT_TRUE(
|
|
chunk.parameters().get<ForwardTsnSupportedParameter>().has_value());
|
|
EXPECT_TRUE(
|
|
chunk.parameters().get<SupportedExtensionsParameter>().has_value());
|
|
}
|
|
|
|
TEST(InitChunkTest, SerializeAndDeserialize) {
|
|
InitChunk chunk(VerificationTag(123), /*a_rwnd=*/456,
|
|
/*nbr_outbound_streams=*/65535,
|
|
/*nbr_inbound_streams=*/65534, /*initial_tsn=*/TSN(789),
|
|
/*parameters=*/Parameters::Builder().Build());
|
|
|
|
std::vector<uint8_t> serialized;
|
|
chunk.SerializeTo(serialized);
|
|
|
|
ASSERT_HAS_VALUE_AND_ASSIGN(InitChunk deserialized,
|
|
InitChunk::Parse(serialized));
|
|
|
|
EXPECT_EQ(deserialized.initiate_tag(), VerificationTag(123u));
|
|
EXPECT_EQ(deserialized.a_rwnd(), 456u);
|
|
EXPECT_EQ(deserialized.nbr_outbound_streams(), 65535u);
|
|
EXPECT_EQ(deserialized.nbr_inbound_streams(), 65534u);
|
|
EXPECT_EQ(deserialized.initial_tsn(), TSN(789u));
|
|
EXPECT_EQ(deserialized.ToString(),
|
|
"INIT, initiate_tag=0x7b, initial_tsn=789");
|
|
}
|
|
} // namespace
|
|
} // namespace dcsctp
|