1 /*
2 * Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include <stddef.h>
12 #include <stdint.h>
13
14 #include "absl/strings/string_view.h"
15 #include "pc/test/integration_test_helpers.h"
16
17 namespace webrtc {
18
19 class FuzzerTest : public PeerConnectionIntegrationBaseTest {
20 public:
FuzzerTest()21 FuzzerTest()
22 : PeerConnectionIntegrationBaseTest(SdpSemantics::kUnifiedPlan) {}
23
RunNegotiateCycle(absl::string_view message)24 void RunNegotiateCycle(absl::string_view message) {
25 CreatePeerConnectionWrappers();
26 // Note - we do not do test.ConnectFakeSignaling(); all signals
27 // generated are discarded.
28
29 auto srd_observer =
30 rtc::make_ref_counted<FakeSetRemoteDescriptionObserver>();
31
32 SdpParseError error;
33 std::unique_ptr<SessionDescriptionInterface> sdp(
34 CreateSessionDescription("offer", std::string(message), &error));
35 caller()->pc()->SetRemoteDescription(std::move(sdp), srd_observer);
36 // Wait a short time for observer to be called. Timeout is short
37 // because the fuzzer should be trying many branches.
38 EXPECT_TRUE_WAIT(srd_observer->called(), 100);
39
40 // If set-remote-description was successful, try to answer.
41 auto sld_observer =
42 rtc::make_ref_counted<FakeSetLocalDescriptionObserver>();
43 if (srd_observer->error().ok()) {
44 caller()->pc()->SetLocalDescription(sld_observer);
45 EXPECT_TRUE_WAIT(sld_observer->called(), 100);
46 }
47 // If there is an EXPECT failure, die here.
48 RTC_CHECK(!HasFailure());
49 }
50
51 // This test isn't using the test definition macros, so we have to
52 // define the TestBody() function, even though we don't need it.
TestBody()53 void TestBody() override {}
54 };
55
FuzzOneInput(const uint8_t * data,size_t size)56 void FuzzOneInput(const uint8_t* data, size_t size) {
57 if (size > 16384) {
58 return;
59 }
60
61 FuzzerTest test;
62 test.RunNegotiateCycle(
63 absl::string_view(reinterpret_cast<const char*>(data), size));
64 }
65
66 } // namespace webrtc
67