1 files changed, 65 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/testing/data_generator.cc b/third_party/libwebrtc/net/dcsctp/testing/data_generator.cc
new file mode 100644
index 0000000000..e4f9f91384
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/testing/data_generator.cc
@@ -0,0 +1,65 @@
+/*
+ *  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/testing/data_generator.h"
+
+#include <cstdint>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "absl/strings/string_view.h"
+#include "net/dcsctp/packet/data.h"
+#include "net/dcsctp/public/types.h"
+
+namespace dcsctp {
+constexpr PPID kPpid = PPID(53);
+
+Data DataGenerator::Ordered(std::vector<uint8_t> payload,
+                            absl::string_view flags,
+                            const DataGeneratorOptions opts) {
+  Data::IsBeginning is_beginning(flags.find('B') != std::string::npos);
+  Data::IsEnd is_end(flags.find('E') != std::string::npos);
+
+  if (is_beginning) {
+    fsn_ = FSN(0);
+  } else {
+    fsn_ = FSN(*fsn_ + 1);
+  }
+  MID message_id = opts.message_id.value_or(message_id_);
+  Data ret = Data(opts.stream_id, SSN(static_cast<uint16_t>(*message_id)),
+                  message_id, fsn_, opts.ppid, std::move(payload), is_beginning,
+                  is_end, IsUnordered(false));
+
+  if (is_end) {
+    message_id_ = MID(*message_id + 1);
+  }
+  return ret;
+}
+
+Data DataGenerator::Unordered(std::vector<uint8_t> payload,
+                              absl::string_view flags,
+                              const DataGeneratorOptions opts) {
+  Data::IsBeginning is_beginning(flags.find('B') != std::string::npos);
+  Data::IsEnd is_end(flags.find('E') != std::string::npos);
+
+  if (is_beginning) {
+    fsn_ = FSN(0);
+  } else {
+    fsn_ = FSN(*fsn_ + 1);
+  }
+  MID message_id = opts.message_id.value_or(message_id_);
+  Data ret = Data(opts.stream_id, SSN(0), message_id, fsn_, kPpid,
+                  std::move(payload), is_beginning, is_end, IsUnordered(true));
+  if (is_end) {
+    message_id_ = MID(*message_id + 1);
+  }
+  return ret;
+}
+}  // namespace dcsctp