Adds fuzzers for libmediautils
This change adds fuzzers for a few classes in libmediautils.
Test: Ran on Pixel 3a device for a short period. Estimated coverage is 2.94%.
Signed-off-by: Dylan Katz <dylan.katz@leviathansecurity.com>
Change-Id: I147122092659206800d92c4ebd373f692ea1bdb3
diff --git a/media/utils/fuzzers/BatteryNotifierFuzz.cpp b/media/utils/fuzzers/BatteryNotifierFuzz.cpp
new file mode 100644
index 0000000..00b3cce
--- /dev/null
+++ b/media/utils/fuzzers/BatteryNotifierFuzz.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <functional>
+#include <string>
+#include <vector>
+
+#include <utils/String8.h>
+
+#include "fuzzer/FuzzedDataProvider.h"
+#include "mediautils/BatteryNotifier.h"
+
+static constexpr int kMaxOperations = 30;
+static constexpr int kMaxStringLength = 500;
+using android::BatteryNotifier;
+
+std::vector<std::function<void(std::string /*flashlight_name*/, std::string /*camera_name*/,
+ uid_t /*video_id*/, uid_t /*audio_id*/, uid_t /*light_id*/,
+ uid_t /*camera_id*/)>>
+ operations = {
+ [](std::string, std::string, uid_t, uid_t, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteResetVideo();
+ },
+ [](std::string, std::string, uid_t, uid_t, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteResetAudio();
+ },
+ [](std::string, std::string, uid_t, uid_t, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteResetFlashlight();
+ },
+ [](std::string, std::string, uid_t, uid_t, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteResetCamera();
+ },
+ [](std::string, std::string, uid_t video_id, uid_t, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteStartVideo(video_id);
+ },
+ [](std::string, std::string, uid_t video_id, uid_t, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteStopVideo(video_id);
+ },
+ [](std::string, std::string, uid_t, uid_t audio_id, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteStartAudio(audio_id);
+ },
+ [](std::string, std::string, uid_t, uid_t audio_id, uid_t, uid_t) -> void {
+ BatteryNotifier::getInstance().noteStopAudio(audio_id);
+ },
+ [](std::string flashlight_name, std::string, uid_t, uid_t, uid_t light_id, uid_t) -> void {
+ android::String8 name(flashlight_name.c_str());
+ BatteryNotifier::getInstance().noteFlashlightOn(name, light_id);
+ },
+ [](std::string flashlight_name, std::string, uid_t, uid_t, uid_t light_id, uid_t) -> void {
+ android::String8 name(flashlight_name.c_str());
+ BatteryNotifier::getInstance().noteFlashlightOff(name, light_id);
+ },
+ [](std::string, std::string camera_name, uid_t, uid_t, uid_t, uid_t camera_id) -> void {
+ android::String8 name(camera_name.c_str());
+ BatteryNotifier::getInstance().noteStartCamera(name, camera_id);
+ },
+ [](std::string, std::string camera_name, uid_t, uid_t, uid_t, uid_t camera_id) -> void {
+ android::String8 name(camera_name.c_str());
+ BatteryNotifier::getInstance().noteStopCamera(name, camera_id);
+ },
+};
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+ FuzzedDataProvider data_provider(data, size);
+ std::string camera_name = data_provider.ConsumeRandomLengthString(kMaxStringLength);
+ std::string flashlight_name = data_provider.ConsumeRandomLengthString(kMaxStringLength);
+ uid_t video_id = data_provider.ConsumeIntegral<uid_t>();
+ uid_t audio_id = data_provider.ConsumeIntegral<uid_t>();
+ uid_t light_id = data_provider.ConsumeIntegral<uid_t>();
+ uid_t camera_id = data_provider.ConsumeIntegral<uid_t>();
+ size_t ops_run = 0;
+ while (data_provider.remaining_bytes() > 0 && ops_run++ < kMaxOperations) {
+ uint8_t op = data_provider.ConsumeIntegralInRange<uint8_t>(0, operations.size() - 1);
+ operations[op](flashlight_name, camera_name, video_id, audio_id, light_id, camera_id);
+ }
+ return 0;
+}