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/*
* 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_