From 3d2a3355e33732a05bd438e28c7057bc43616f1d Mon Sep 17 00:00:00 2001
From: Victor Boivie <boivie@webrtc.org>
Date: Sun, 11 Apr 2021 19:56:36 +0200
Subject: [PATCH] dcsctp: Add socket fuzzer

Bug: webrtc:12614
Change-Id: I43659e96fbd44a10b3e8d690602afa4673df1228
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/218501
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34008}
---
 test/fuzzers/BUILD.gn                | 11 +++++++++++
 test/fuzzers/dcsctp_socket_fuzzer.cc | 28 ++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 test/fuzzers/dcsctp_socket_fuzzer.cc

diff --git a/test/fuzzers/BUILD.gn b/test/fuzzers/BUILD.gn
index d7afb65215..23ad728dba 100644
--- a/test/fuzzers/BUILD.gn
+++ b/test/fuzzers/BUILD.gn
@@ -605,6 +605,17 @@ webrtc_fuzzer_test("sctp_utils_fuzzer") {
   ]
 }
 
+webrtc_fuzzer_test("dcsctp_socket_fuzzer") {
+  sources = [ "dcsctp_socket_fuzzer.cc" ]
+  deps = [
+    "../../net/dcsctp/fuzzers:dcsctp_fuzzers",
+    "../../net/dcsctp/public:socket",
+    "../../net/dcsctp/public:types",
+    "../../net/dcsctp/socket:dcsctp_socket",
+    "../../rtc_base:rtc_base_approved",
+  ]
+}
+
 webrtc_fuzzer_test("rtp_header_parser_fuzzer") {
   sources = [ "rtp_header_parser_fuzzer.cc" ]
   deps = [ "../:rtp_test_utils" ]
diff --git a/test/fuzzers/dcsctp_socket_fuzzer.cc b/test/fuzzers/dcsctp_socket_fuzzer.cc
new file mode 100644
index 0000000000..390cbb7f6c
--- /dev/null
+++ b/test/fuzzers/dcsctp_socket_fuzzer.cc
@@ -0,0 +1,28 @@
+/*
+ *  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/fuzzers/dcsctp_fuzzers.h"
+#include "net/dcsctp/public/dcsctp_message.h"
+#include "net/dcsctp/public/dcsctp_options.h"
+#include "net/dcsctp/public/dcsctp_socket.h"
+#include "net/dcsctp/socket/dcsctp_socket.h"
+#include "rtc_base/logging.h"
+
+namespace webrtc {
+
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  dcsctp::dcsctp_fuzzers::FuzzerCallbacks cb;
+  dcsctp::DcSctpOptions options;
+  options.disable_checksum_verification = true;
+  dcsctp::DcSctpSocket socket("A", cb, nullptr, options);
+
+  dcsctp::dcsctp_fuzzers::FuzzSocket(socket, cb,
+                                     rtc::ArrayView<const uint8_t>(data, size));
+}
+}  // namespace webrtc