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_ERROR_CAUSE_UNRECOGNIZED_CHUNK_TYPE_CAUSE_H_ 11 #define NET_DCSCTP_PACKET_ERROR_CAUSE_UNRECOGNIZED_CHUNK_TYPE_CAUSE_H_ 12 #include <stddef.h> 13 #include <stdint.h> 14 15 #include <cstdint> 16 #include <string> 17 #include <utility> 18 #include <vector> 19 20 #include "absl/strings/string_view.h" 21 #include "api/array_view.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-3.3.10.6 28 struct UnrecognizedChunkTypeCauseConfig : public ParameterConfig { 29 static constexpr int kType = 6; 30 static constexpr size_t kHeaderSize = 4; 31 static constexpr size_t kVariableLengthAlignment = 1; 32 }; 33 34 class UnrecognizedChunkTypeCause 35 : public Parameter, 36 public TLVTrait<UnrecognizedChunkTypeCauseConfig> { 37 public: 38 static constexpr int kType = UnrecognizedChunkTypeCauseConfig::kType; 39 UnrecognizedChunkTypeCause(std::vector<uint8_t> unrecognized_chunk)40 explicit UnrecognizedChunkTypeCause(std::vector<uint8_t> unrecognized_chunk) 41 : unrecognized_chunk_(std::move(unrecognized_chunk)) {} 42 43 static absl::optional<UnrecognizedChunkTypeCause> Parse( 44 rtc::ArrayView<const uint8_t> data); 45 46 void SerializeTo(std::vector<uint8_t>& out) const override; 47 std::string ToString() const override; 48 unrecognized_chunk()49 rtc::ArrayView<const uint8_t> unrecognized_chunk() const { 50 return unrecognized_chunk_; 51 } 52 53 private: 54 std::vector<uint8_t> unrecognized_chunk_; 55 }; 56 57 } // namespace dcsctp 58 59 #endif // NET_DCSCTP_PACKET_ERROR_CAUSE_UNRECOGNIZED_CHUNK_TYPE_CAUSE_H_ 60