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/*
* 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/chunk.h"
#include <cstdint>
#include <memory>
#include <utility>
#include "absl/types/optional.h"
#include "api/array_view.h"
#include "net/dcsctp/common/math.h"
#include "net/dcsctp/packet/chunk/abort_chunk.h"
#include "net/dcsctp/packet/chunk/cookie_ack_chunk.h"
#include "net/dcsctp/packet/chunk/cookie_echo_chunk.h"
#include "net/dcsctp/packet/chunk/data_chunk.h"
#include "net/dcsctp/packet/chunk/error_chunk.h"
#include "net/dcsctp/packet/chunk/forward_tsn_chunk.h"
#include "net/dcsctp/packet/chunk/heartbeat_ack_chunk.h"
#include "net/dcsctp/packet/chunk/heartbeat_request_chunk.h"
#include "net/dcsctp/packet/chunk/idata_chunk.h"
#include "net/dcsctp/packet/chunk/iforward_tsn_chunk.h"
#include "net/dcsctp/packet/chunk/init_ack_chunk.h"
#include "net/dcsctp/packet/chunk/init_chunk.h"
#include "net/dcsctp/packet/chunk/reconfig_chunk.h"
#include "net/dcsctp/packet/chunk/sack_chunk.h"
#include "net/dcsctp/packet/chunk/shutdown_ack_chunk.h"
#include "net/dcsctp/packet/chunk/shutdown_chunk.h"
#include "net/dcsctp/packet/chunk/shutdown_complete_chunk.h"
#include "net/dcsctp/packet/tlv_trait.h"
namespace dcsctp {
template <class Chunk>
bool ParseAndPrint(uint8_t chunk_type,
rtc::ArrayView<const uint8_t> data,
rtc::StringBuilder& sb) {
if (chunk_type == Chunk::kType) {
absl::optional<Chunk> c = Chunk::Parse(data);
if (c.has_value()) {
sb << c->ToString();
} else {
sb << "Failed to parse chunk of type " << chunk_type;
}
return true;
}
return false;
}
std::string DebugConvertChunkToString(rtc::ArrayView<const uint8_t> data) {
rtc::StringBuilder sb;
if (data.empty()) {
sb << "Failed to parse chunk due to empty data";
} else {
uint8_t chunk_type = data[0];
if (!ParseAndPrint<DataChunk>(chunk_type, data, sb) &&
!ParseAndPrint<InitChunk>(chunk_type, data, sb) &&
!ParseAndPrint<InitAckChunk>(chunk_type, data, sb) &&
!ParseAndPrint<SackChunk>(chunk_type, data, sb) &&
!ParseAndPrint<HeartbeatRequestChunk>(chunk_type, data, sb) &&
!ParseAndPrint<HeartbeatAckChunk>(chunk_type, data, sb) &&
!ParseAndPrint<AbortChunk>(chunk_type, data, sb) &&
!ParseAndPrint<ErrorChunk>(chunk_type, data, sb) &&
!ParseAndPrint<CookieEchoChunk>(chunk_type, data, sb) &&
!ParseAndPrint<CookieAckChunk>(chunk_type, data, sb) &&
!ParseAndPrint<ShutdownChunk>(chunk_type, data, sb) &&
!ParseAndPrint<ShutdownAckChunk>(chunk_type, data, sb) &&
!ParseAndPrint<ShutdownCompleteChunk>(chunk_type, data, sb) &&
!ParseAndPrint<ReConfigChunk>(chunk_type, data, sb) &&
!ParseAndPrint<ForwardTsnChunk>(chunk_type, data, sb) &&
!ParseAndPrint<IDataChunk>(chunk_type, data, sb) &&
!ParseAndPrint<IForwardTsnChunk>(chunk_type, data, sb)) {
sb << "Unhandled chunk type: " << static_cast<int>(chunk_type);
}
}
return sb.Release();
}
} // namespace dcsctp
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