Support "UDP/DTLS/SCTP" and "TCP/DTLS/SCTP" profile strings.

webrtc/pc/peerconnection_integrationtest.cc

 /*
  *  Copyright 2012 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.
  */
 
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   caller()->AddAudioVideoMediaStream();
   callee()->AddAudioVideoMediaStream();
   caller()->CreateAndSetAndSignalOffer();
   ASSERT_TRUE_WAIT(SignalingStateStable(), kDefaultTimeout);
   ExpectNewFramesReceivedWithWait(
       kDefaultExpectedAudioFrameCount, kDefaultExpectedVideoFrameCount,
       kDefaultExpectedAudioFrameCount, kDefaultExpectedVideoFrameCount,
       kMaxWaitForFramesMs);
 }
 
+static void MakeSpecCompliantSctpOffer(cricket::SessionDescription* desc) {
+  const ContentInfo* dc_offer = GetFirstDataContent(desc);
+  ASSERT_NE(nullptr, dc_offer);
+  cricket::DataContentDescription* dcd_offer =
+      static_cast<cricket::DataContentDescription*>(dc_offer->description);
+  dcd_offer->set_use_sctpmap(false);
+  dcd_offer->set_protocol("UDP/DTLS/SCTP");
+}
+
+// Test that the data channel works when a spec-compliant SCTP m= section is
+// offered (using "a=sctp-port" instead of "a=sctpmap", and using
+// "UDP/DTLS/SCTP" as the protocol).
+TEST_F(PeerConnectionIntegrationTest,
+       DataChannelWorksWhenSpecCompliantSctpOfferReceived) {
+  ASSERT_TRUE(CreatePeerConnectionWrappers());
+  ConnectFakeSignaling();
+  caller()->CreateDataChannel();
+  caller()->SetGeneratedSdpMunger(MakeSpecCompliantSctpOffer);
+  caller()->CreateAndSetAndSignalOffer();
+  ASSERT_TRUE_WAIT(SignalingStateStable(), kDefaultTimeout);
+  ASSERT_TRUE_WAIT(callee()->data_channel() != nullptr, kDefaultTimeout);
+  EXPECT_TRUE_WAIT(caller()->data_observer()->IsOpen(), kDefaultTimeout);
+  EXPECT_TRUE_WAIT(callee()->data_observer()->IsOpen(), kDefaultTimeout);
+
+  // Ensure data can be sent in both directions.
+  std::string data = "hello world";
+  caller()->data_channel()->Send(DataBuffer(data));
+  EXPECT_EQ_WAIT(data, callee()->data_observer()->last_message(),
+                 kDefaultTimeout);
+  callee()->data_channel()->Send(DataBuffer(data));
+  EXPECT_EQ_WAIT(data, caller()->data_observer()->last_message(),
+                 kDefaultTimeout);
+}
+
 #endif  // HAVE_SCTP
 
 // Test that the ICE connection and gathering states eventually reach
 // "complete".
 TEST_F(PeerConnectionIntegrationTest, IceStatesReachCompletion) {
   ASSERT_TRUE(CreatePeerConnectionWrappers());
   ConnectFakeSignaling();
   // Do normal offer/answer.
   caller()->AddAudioVideoMediaStream();
   callee()->AddAudioVideoMediaStream();
@@ skipping 441 matching lines @@
   caller()->CreateAndSetAndSignalOffer();
   ASSERT_TRUE_WAIT(SignalingStateStable(), kDefaultTimeout);
   // Wait for additional audio frames to be received by the callee.
   ExpectNewFramesReceivedWithWait(0, 0, kDefaultExpectedAudioFrameCount, 0,
                                   kMaxWaitForFramesMs);
 }
 
 }  // namespace
 
 #endif  // if !defined(THREAD_SANITIZER)