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-rw-r--r--third_party/libwebrtc/test/fuzzers/flexfec_receiver_fuzzer.cc71
1 files changed, 71 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/fuzzers/flexfec_receiver_fuzzer.cc b/third_party/libwebrtc/test/fuzzers/flexfec_receiver_fuzzer.cc
new file mode 100644
index 0000000000..67d603d3fc
--- /dev/null
+++ b/third_party/libwebrtc/test/fuzzers/flexfec_receiver_fuzzer.cc
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2016 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 <algorithm>
+
+#include "modules/rtp_rtcp/include/flexfec_receiver.h"
+#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+#include "modules/rtp_rtcp/source/byte_io.h"
+#include "modules/rtp_rtcp/source/rtp_packet_received.h"
+
+namespace webrtc {
+
+namespace {
+class DummyCallback : public RecoveredPacketReceiver {
+ void OnRecoveredPacket(const RtpPacketReceived& packet) override {}
+};
+} // namespace
+
+void FuzzOneInput(const uint8_t* data, size_t size) {
+ constexpr size_t kMinDataNeeded = 12;
+ if (size < kMinDataNeeded || size > 2000) {
+ return;
+ }
+
+ uint32_t flexfec_ssrc;
+ memcpy(&flexfec_ssrc, data + 0, 4);
+ uint16_t flexfec_seq_num;
+ memcpy(&flexfec_seq_num, data + 4, 2);
+ uint32_t media_ssrc;
+ memcpy(&media_ssrc, data + 6, 4);
+ uint16_t media_seq_num;
+ memcpy(&media_seq_num, data + 10, 2);
+
+ DummyCallback callback;
+ FlexfecReceiver receiver(flexfec_ssrc, media_ssrc, &callback);
+
+ std::unique_ptr<uint8_t[]> packet;
+ size_t packet_length;
+ size_t i = kMinDataNeeded;
+ while (i < size) {
+ packet_length = kRtpHeaderSize + data[i++];
+ packet = std::unique_ptr<uint8_t[]>(new uint8_t[packet_length]);
+ if (i + packet_length >= size) {
+ break;
+ }
+ memcpy(packet.get(), data + i, packet_length);
+ i += packet_length;
+ if (i < size && data[i++] % 2 == 0) {
+ // Simulate FlexFEC packet.
+ ByteWriter<uint16_t>::WriteBigEndian(packet.get() + 2, flexfec_seq_num++);
+ ByteWriter<uint32_t>::WriteBigEndian(packet.get() + 8, flexfec_ssrc);
+ } else {
+ // Simulate media packet.
+ ByteWriter<uint16_t>::WriteBigEndian(packet.get() + 2, media_seq_num++);
+ ByteWriter<uint32_t>::WriteBigEndian(packet.get() + 8, media_ssrc);
+ }
+ RtpPacketReceived parsed_packet;
+ if (parsed_packet.Parse(packet.get(), packet_length)) {
+ receiver.OnRtpPacket(parsed_packet);
+ }
+ }
+}
+
+} // namespace webrtc