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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_PARAMETER_OUTGOING_SSN_RESET_REQUEST_PARAMETER_H_
#define NET_DCSCTP_PACKET_PARAMETER_OUTGOING_SSN_RESET_REQUEST_PARAMETER_H_
#include <stddef.h>
#include <stdint.h>
#include <cstdint>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "api/array_view.h"
#include "net/dcsctp/common/internal_types.h"
#include "net/dcsctp/packet/parameter/parameter.h"
#include "net/dcsctp/packet/tlv_trait.h"
#include "net/dcsctp/public/types.h"
namespace dcsctp {
// https://tools.ietf.org/html/rfc6525#section-4.1
struct OutgoingSSNResetRequestParameterConfig : ParameterConfig {
static constexpr int kType = 13;
static constexpr size_t kHeaderSize = 16;
static constexpr size_t kVariableLengthAlignment = 2;
};
class OutgoingSSNResetRequestParameter
: public Parameter,
public TLVTrait<OutgoingSSNResetRequestParameterConfig> {
public:
static constexpr int kType = OutgoingSSNResetRequestParameterConfig::kType;
explicit OutgoingSSNResetRequestParameter(
ReconfigRequestSN request_sequence_number,
ReconfigResponseSN response_sequence_number,
TSN sender_last_assigned_tsn,
std::vector<StreamID> stream_ids)
: request_sequence_number_(request_sequence_number),
response_sequence_number_(response_sequence_number),
sender_last_assigned_tsn_(sender_last_assigned_tsn),
stream_ids_(std::move(stream_ids)) {}
static absl::optional<OutgoingSSNResetRequestParameter> Parse(
rtc::ArrayView<const uint8_t> data);
void SerializeTo(std::vector<uint8_t>& out) const override;
std::string ToString() const override;
ReconfigRequestSN request_sequence_number() const {
return request_sequence_number_;
}
ReconfigResponseSN response_sequence_number() const {
return response_sequence_number_;
}
TSN sender_last_assigned_tsn() const { return sender_last_assigned_tsn_; }
rtc::ArrayView<const StreamID> stream_ids() const { return stream_ids_; }
private:
static constexpr size_t kStreamIdSize = sizeof(uint16_t);
ReconfigRequestSN request_sequence_number_;
ReconfigResponseSN response_sequence_number_;
TSN sender_last_assigned_tsn_;
std::vector<StreamID> stream_ids_;
};
} // namespace dcsctp
#endif // NET_DCSCTP_PACKET_PARAMETER_OUTGOING_SSN_RESET_REQUEST_PARAMETER_H_