1 files changed, 66 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/fuzzers/sdp_integration_fuzzer.cc b/third_party/libwebrtc/test/fuzzers/sdp_integration_fuzzer.cc
new file mode 100644
index 0000000000..ece4b50505
--- /dev/null
+++ b/third_party/libwebrtc/test/fuzzers/sdp_integration_fuzzer.cc
@@ -0,0 +1,66 @@
+/*
+ *  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 <stddef.h>
+#include <stdint.h>
+
+#include "absl/strings/string_view.h"
+#include "pc/test/integration_test_helpers.h"
+
+namespace webrtc {
+
+class FuzzerTest : public PeerConnectionIntegrationBaseTest {
+ public:
+  FuzzerTest()
+      : PeerConnectionIntegrationBaseTest(SdpSemantics::kUnifiedPlan) {}
+
+  void RunNegotiateCycle(absl::string_view message) {
+    CreatePeerConnectionWrappers();
+    // Note - we do not do test.ConnectFakeSignaling(); all signals
+    // generated are discarded.
+
+    auto srd_observer =
+        rtc::make_ref_counted<FakeSetRemoteDescriptionObserver>();
+
+    SdpParseError error;
+    std::unique_ptr<SessionDescriptionInterface> sdp(
+        CreateSessionDescription("offer", std::string(message), &error));
+    caller()->pc()->SetRemoteDescription(std::move(sdp), srd_observer);
+    // Wait a short time for observer to be called. Timeout is short
+    // because the fuzzer should be trying many branches.
+    EXPECT_TRUE_WAIT(srd_observer->called(), 100);
+
+    // If set-remote-description was successful, try to answer.
+    auto sld_observer =
+        rtc::make_ref_counted<FakeSetLocalDescriptionObserver>();
+    if (srd_observer->error().ok()) {
+      caller()->pc()->SetLocalDescription(sld_observer);
+      EXPECT_TRUE_WAIT(sld_observer->called(), 100);
+    }
+    // If there is an EXPECT failure, die here.
+    RTC_CHECK(!HasFailure());
+  }
+
+  // This test isn't using the test definition macros, so we have to
+  // define the TestBody() function, even though we don't need it.
+  void TestBody() override {}
+};
+
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  if (size > 16384) {
+    return;
+  }
+
+  FuzzerTest test;
+  test.RunNegotiateCycle(
+      absl::string_view(reinterpret_cast<const char*>(data), size));
+}
+
+}  // namespace webrtc