mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-17 07:37:51 +01:00
8037fc6ffa
Bug: webrtc:342905193 No-Try: True Change-Id: Icc968be43b8830038ea9a1f5f604307220457807 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/361021 Auto-Submit: Florent Castelli <orphis@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Florent Castelli <orphis@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42911}
64 lines
2.3 KiB
C++
64 lines
2.3 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/heartbeat_request_chunk.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <optional>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "api/array_view.h"
|
|
#include "net/dcsctp/packet/bounded_byte_reader.h"
|
|
#include "net/dcsctp/packet/bounded_byte_writer.h"
|
|
#include "net/dcsctp/packet/parameter/parameter.h"
|
|
#include "net/dcsctp/packet/tlv_trait.h"
|
|
|
|
namespace dcsctp {
|
|
|
|
// https://tools.ietf.org/html/rfc4960#section-3.3.5
|
|
|
|
// 0 1 2 3
|
|
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
|
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
// | Type = 4 | Chunk Flags | Heartbeat Length |
|
|
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
// \ \
|
|
// / Heartbeat Information TLV (Variable-Length) /
|
|
// \ \
|
|
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
constexpr int HeartbeatRequestChunk::kType;
|
|
|
|
std::optional<HeartbeatRequestChunk> HeartbeatRequestChunk::Parse(
|
|
rtc::ArrayView<const uint8_t> data) {
|
|
std::optional<BoundedByteReader<kHeaderSize>> reader = ParseTLV(data);
|
|
if (!reader.has_value()) {
|
|
return std::nullopt;
|
|
}
|
|
|
|
std::optional<Parameters> parameters =
|
|
Parameters::Parse(reader->variable_data());
|
|
if (!parameters.has_value()) {
|
|
return std::nullopt;
|
|
}
|
|
return HeartbeatRequestChunk(*std::move(parameters));
|
|
}
|
|
|
|
void HeartbeatRequestChunk::SerializeTo(std::vector<uint8_t>& out) const {
|
|
rtc::ArrayView<const uint8_t> parameters = parameters_.data();
|
|
BoundedByteWriter<kHeaderSize> writer = AllocateTLV(out, parameters.size());
|
|
writer.CopyToVariableData(parameters);
|
|
}
|
|
|
|
std::string HeartbeatRequestChunk::ToString() const {
|
|
return "HEARTBEAT";
|
|
}
|
|
|
|
} // namespace dcsctp
|