1 files changed, 46 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/packet/chunk/cookie_ack_chunk.cc b/third_party/libwebrtc/net/dcsctp/packet/chunk/cookie_ack_chunk.cc
new file mode 100644
index 0000000000..4839969ccf
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/packet/chunk/cookie_ack_chunk.cc
@@ -0,0 +1,46 @@
+/*
+ *  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/cookie_ack_chunk.h"
+
+#include <stdint.h>
+
+#include <vector>
+
+#include "absl/types/optional.h"
+#include "api/array_view.h"
+
+namespace dcsctp {
+
+// https://tools.ietf.org/html/rfc4960#section-3.3.12
+
+//   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 = 11   |Chunk  Flags   |     Length = 4                |
+//  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+constexpr int CookieAckChunk::kType;
+
+absl::optional<CookieAckChunk> CookieAckChunk::Parse(
+    rtc::ArrayView<const uint8_t> data) {
+  if (!ParseTLV(data).has_value()) {
+    return absl::nullopt;
+  }
+  return CookieAckChunk();
+}
+
+void CookieAckChunk::SerializeTo(std::vector<uint8_t>& out) const {
+  AllocateTLV(out);
+}
+
+std::string CookieAckChunk::ToString() const {
+  return "COOKIE-ACK";
+}
+
+}  // namespace dcsctp