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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libwebrtc/net/dcsctp/packet/chunk/abort_chunk.cc | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/net/dcsctp/packet/chunk/abort_chunk.cc')
-rw-r--r-- | third_party/libwebrtc/net/dcsctp/packet/chunk/abort_chunk.cc | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/chunk/abort_chunk.cc b/third_party/libwebrtc/net/dcsctp/packet/chunk/abort_chunk.cc new file mode 100644 index 0000000000..8348eb96a9 --- /dev/null +++ b/third_party/libwebrtc/net/dcsctp/packet/chunk/abort_chunk.cc @@ -0,0 +1,65 @@ +/* + * 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/abort_chunk.h" + +#include <stdint.h> + +#include <utility> +#include <vector> + +#include "absl/types/optional.h" +#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/error_cause/error_cause.h" +#include "net/dcsctp/packet/tlv_trait.h" + +namespace dcsctp { + +// https://tools.ietf.org/html/rfc4960#section-3.3.7 + +// 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 = 6 |Reserved |T| Length | +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +// \ \ +// / zero or more Error Causes / +// \ \ +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +constexpr int AbortChunk::kType; + +absl::optional<AbortChunk> AbortChunk::Parse( + rtc::ArrayView<const uint8_t> data) { + absl::optional<BoundedByteReader<kHeaderSize>> reader = ParseTLV(data); + if (!reader.has_value()) { + return absl::nullopt; + } + absl::optional<Parameters> error_causes = + Parameters::Parse(reader->variable_data()); + if (!error_causes.has_value()) { + return absl::nullopt; + } + uint8_t flags = reader->Load8<1>(); + bool filled_in_verification_tag = (flags & (1 << kFlagsBitT)) == 0; + return AbortChunk(filled_in_verification_tag, *std::move(error_causes)); +} + +void AbortChunk::SerializeTo(std::vector<uint8_t>& out) const { + rtc::ArrayView<const uint8_t> error_causes = error_causes_.data(); + BoundedByteWriter<kHeaderSize> writer = AllocateTLV(out, error_causes.size()); + writer.Store8<1>(filled_in_verification_tag_ ? 0 : (1 << kFlagsBitT)); + writer.CopyToVariableData(error_causes); +} + +std::string AbortChunk::ToString() const { + return "ABORT"; +} +} // namespace dcsctp |