1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/public/text_pcap_packet_observer.cc b/third_party/libwebrtc/net/dcsctp/public/text_pcap_packet_observer.cc
new file mode 100644
index 0000000000..2b13060190
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/public/text_pcap_packet_observer.cc
@@ -0,0 +1,54 @@
+/*
+ *  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/public/text_pcap_packet_observer.h"
+
+#include "api/array_view.h"
+#include "net/dcsctp/public/types.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/strings/string_builder.h"
+
+namespace dcsctp {
+
+void TextPcapPacketObserver::OnSentPacket(
+    dcsctp::TimeMs now,
+    rtc::ArrayView<const uint8_t> payload) {
+  PrintPacket("O ", name_, now, payload);
+}
+
+void TextPcapPacketObserver::OnReceivedPacket(
+    dcsctp::TimeMs now,
+    rtc::ArrayView<const uint8_t> payload) {
+  PrintPacket("I ", name_, now, payload);
+}
+
+void TextPcapPacketObserver::PrintPacket(
+    absl::string_view prefix,
+    absl::string_view socket_name,
+    dcsctp::TimeMs now,
+    rtc::ArrayView<const uint8_t> payload) {
+  rtc::StringBuilder s;
+  s << "\n" << prefix;
+  int64_t remaining = *now % (24 * 60 * 60 * 1000);
+  int hours = remaining / (60 * 60 * 1000);
+  remaining = remaining % (60 * 60 * 1000);
+  int minutes = remaining / (60 * 1000);
+  remaining = remaining % (60 * 1000);
+  int seconds = remaining / 1000;
+  int ms = remaining % 1000;
+  s.AppendFormat("%02d:%02d:%02d.%03d", hours, minutes, seconds, ms);
+  s << " 0000";
+  for (uint8_t byte : payload) {
+    s.AppendFormat(" %02x", byte);
+  }
+  s << " # SCTP_PACKET " << socket_name;
+  RTC_LOG(LS_VERBOSE) << s.str();
+}
+
+}  // namespace dcsctp