1 files changed, 78 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/parameter/outgoing_ssn_reset_request_parameter.h b/third_party/libwebrtc/net/dcsctp/packet/parameter/outgoing_ssn_reset_request_parameter.h
new file mode 100644
index 0000000000..6eb44e079f
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/parameter/outgoing_ssn_reset_request_parameter.h
@@ -0,0 +1,78 @@
+/*
+ *  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,
+      ReconfigRequestSN 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_;
+  }
+  ReconfigRequestSN 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_;
+  ReconfigRequestSN 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_