1 /* 2 * Copyright (c) 2021 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 #ifndef NET_DCSCTP_PACKET_CHUNK_ABORT_CHUNK_H_ 11 #define NET_DCSCTP_PACKET_CHUNK_ABORT_CHUNK_H_ 12 #include <stddef.h> 13 #include <stdint.h> 14 15 #include <string> 16 #include <utility> 17 #include <vector> 18 19 #include "absl/strings/string_view.h" 20 #include "api/array_view.h" 21 #include "net/dcsctp/packet/chunk/chunk.h" 22 #include "net/dcsctp/packet/error_cause/error_cause.h" 23 #include "net/dcsctp/packet/tlv_trait.h" 24 25 namespace dcsctp { 26 27 // https://tools.ietf.org/html/rfc4960#section-3.3.7 28 struct AbortChunkConfig : ChunkConfig { 29 static constexpr int kType = 6; 30 static constexpr size_t kHeaderSize = 4; 31 static constexpr size_t kVariableLengthAlignment = 1; 32 }; 33 34 class AbortChunk : public Chunk, public TLVTrait<AbortChunkConfig> { 35 public: 36 static constexpr int kType = AbortChunkConfig::kType; 37 AbortChunk(bool filled_in_verification_tag,Parameters error_causes)38 AbortChunk(bool filled_in_verification_tag, Parameters error_causes) 39 : filled_in_verification_tag_(filled_in_verification_tag), 40 error_causes_(std::move(error_causes)) {} 41 42 AbortChunk(AbortChunk&& other) = default; 43 AbortChunk& operator=(AbortChunk&& other) = default; 44 45 static absl::optional<AbortChunk> Parse(rtc::ArrayView<const uint8_t> data); 46 47 void SerializeTo(std::vector<uint8_t>& out) const override; 48 std::string ToString() const override; 49 filled_in_verification_tag()50 bool filled_in_verification_tag() const { 51 return filled_in_verification_tag_; 52 } 53 error_causes()54 const Parameters& error_causes() const { return error_causes_; } 55 56 private: 57 static constexpr int kFlagsBitT = 0; 58 bool filled_in_verification_tag_; 59 Parameters error_causes_; 60 }; 61 62 } // namespace dcsctp 63 64 #endif // NET_DCSCTP_PACKET_CHUNK_ABORT_CHUNK_H_ 65