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Diffstat (limited to 'third_party/libwebrtc/net/dcsctp/packet/chunk_validators.h')
-rw-r--r-- | third_party/libwebrtc/net/dcsctp/packet/chunk_validators.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/chunk_validators.h b/third_party/libwebrtc/net/dcsctp/packet/chunk_validators.h new file mode 100644 index 0000000000..b11848a162 --- /dev/null +++ b/third_party/libwebrtc/net/dcsctp/packet/chunk_validators.h @@ -0,0 +1,33 @@ +/* + * 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_CHUNK_VALIDATORS_H_ +#define NET_DCSCTP_PACKET_CHUNK_VALIDATORS_H_ + +#include "net/dcsctp/packet/chunk/sack_chunk.h" + +namespace dcsctp { +// Validates and cleans SCTP chunks. +class ChunkValidators { + public: + // Given a SackChunk, will return `true` if it's valid, and `false` if not. + static bool Validate(const SackChunk& sack); + + // Given a SackChunk, it will return a cleaned and validated variant of it. + // RFC4960 doesn't say anything about validity of SACKs or if the Gap ACK + // blocks must be sorted, and non-overlapping. While they always are in + // well-behaving implementations, this can't be relied on. + // + // This method internally calls `Validate`, which means that you can always + // pass a SackChunk to this method (valid or not), and use the results. + static SackChunk Clean(SackChunk&& sack); +}; +} // namespace dcsctp + +#endif // NET_DCSCTP_PACKET_CHUNK_VALIDATORS_H_ |