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Diffstat (limited to 'third_party/libwebrtc/net/dcsctp/packet/parameter/supported_extensions_parameter.h')
-rw-r--r-- | third_party/libwebrtc/net/dcsctp/packet/parameter/supported_extensions_parameter.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/parameter/supported_extensions_parameter.h b/third_party/libwebrtc/net/dcsctp/packet/parameter/supported_extensions_parameter.h new file mode 100644 index 0000000000..5689fd8035 --- /dev/null +++ b/third_party/libwebrtc/net/dcsctp/packet/parameter/supported_extensions_parameter.h @@ -0,0 +1,62 @@ +/* + * 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. + */ +#ifndef NET_DCSCTP_PACKET_PARAMETER_SUPPORTED_EXTENSIONS_PARAMETER_H_ +#define NET_DCSCTP_PACKET_PARAMETER_SUPPORTED_EXTENSIONS_PARAMETER_H_ +#include <stddef.h> + +#include <algorithm> +#include <cstdint> +#include <iterator> +#include <string> +#include <utility> +#include <vector> + +#include "absl/strings/string_view.h" +#include "api/array_view.h" +#include "net/dcsctp/packet/parameter/parameter.h" +#include "net/dcsctp/packet/tlv_trait.h" + +namespace dcsctp { + +// https://tools.ietf.org/html/rfc5061#section-4.2.7 +struct SupportedExtensionsParameterConfig : ParameterConfig { + static constexpr int kType = 0x8008; + static constexpr size_t kHeaderSize = 4; + static constexpr size_t kVariableLengthAlignment = 1; +}; + +class SupportedExtensionsParameter + : public Parameter, + public TLVTrait<SupportedExtensionsParameterConfig> { + public: + static constexpr int kType = SupportedExtensionsParameterConfig::kType; + + explicit SupportedExtensionsParameter(std::vector<uint8_t> chunk_types) + : chunk_types_(std::move(chunk_types)) {} + + static absl::optional<SupportedExtensionsParameter> Parse( + rtc::ArrayView<const uint8_t> data); + + void SerializeTo(std::vector<uint8_t>& out) const override; + std::string ToString() const override; + + bool supports(uint8_t chunk_type) const { + return std::find(chunk_types_.begin(), chunk_types_.end(), chunk_type) != + chunk_types_.end(); + } + + rtc::ArrayView<const uint8_t> chunk_types() const { return chunk_types_; } + + private: + std::vector<uint8_t> chunk_types_; +}; +} // namespace dcsctp + +#endif // NET_DCSCTP_PACKET_PARAMETER_SUPPORTED_EXTENSIONS_PARAMETER_H_ |