Add fuzzer for EVS HAL (838c4c19) · Commits · e / os / android_hardware_interfaces

automotive/evs/1.1/vts/fuzzing/Android.bp

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		//
		// 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.
		//

		cc_defaults {
		name: "android.hardware.automotive.evs@fuzz-defaults",
		defaults: ["VtsHalTargetTestDefaults"],
		shared_libs: [
		"libui",
		"libcamera_metadata",
		],
		static_libs: [
		"android.hardware.automotive.evs@1.0",
		"android.hardware.automotive.evs@1.1",
		"android.hardware.automotive.evs@common-default-lib",
		"android.hardware.graphics.common@1.0",
		"android.hardware.graphics.common@1.1",
		"android.hardware.graphics.common@1.2",
		"android.hardware.camera.device@3.2",
		],
		cflags: [
		"-O0",
		"-g",
		],
		}

		cc_fuzz {
		name: "VtsHalEvsV1_1CameraOpenFuzz",
		defaults: ["android.hardware.automotive.evs@fuzz-defaults"],
		srcs: [
		"VtsHalEvsV1_1CameraOpenFuzz.cpp",
		],
		fuzz_config: {
		// wait for Haiku device ready
		fuzz_on_haiku_device: false,
		fuzz_on_haiku_host: false,
		},
		}

automotive/evs/1.1/vts/fuzzing/VtsHalEvsV1_1CameraOpenFuzz.cpp

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		/*
		* 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 "common.h"

		using ::android::hardware::automotive::evs::V1_0::DisplayDesc;
		using ::android::hardware::camera::device::V3_2::Stream;
		using IEvsCamera_1_1 = ::android::hardware::automotive::evs::V1_1::IEvsCamera;

		extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
		UNUSED(argc);
		UNUSED(argv);
		pEnumerator = IEvsEnumerator::getService(kEnumeratorName);
		sp<EvsDeathRecipient> dr = new EvsDeathRecipient();

		pEnumerator->linkToDeath(dr, 0);

		loadCameraList();
		return 0;
		}

		extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
		FuzzedDataProvider fdp(data, size);

		std::vector<sp<IEvsCamera_1_1>> camList;
		Stream nullCfg = {};

		while (fdp.remaining_bytes() > 4) {
		switch (fdp.ConsumeIntegralInRange<uint32_t>(0, 3)) {
		case 0: // open camera
		{
		uint32_t whichCam = fdp.ConsumeIntegralInRange<uint32_t>(0, cameraInfo.size() - 1);
		sp<IEvsCamera_1_1> pCam =
		IEvsCamera_1_1::castFrom(pEnumerator->openCamera_1_1(
		cameraInfo[whichCam].v1.cameraId, nullCfg))
		.withDefault(nullptr);
		camList.emplace_back(pCam);
		break;
		}
		case 1: // close camera
		{
		if (!camList.empty()) {
		uint32_t whichCam = fdp.ConsumeIntegralInRange<uint32_t>(0, camList.size() - 1);
		pEnumerator->closeCamera(camList[whichCam]);
		}
		break;
		}
		case 2: // get camera info
		{
		if (!camList.empty()) {
		uint32_t whichCam = fdp.ConsumeIntegralInRange<uint32_t>(0, camList.size() - 1);
		camList[whichCam]->getCameraInfo_1_1([](CameraDesc desc) { UNUSED(desc); });
		}
		break;
		}
		case 3: // setMaxFramesInFlight
		{
		if (!camList.empty()) {
		uint32_t whichCam = fdp.ConsumeIntegralInRange<uint32_t>(0, camList.size() - 1);
		int32_t numFrames = fdp.ConsumeIntegral<int32_t>();
		camList[whichCam]->setMaxFramesInFlight(numFrames);
		}
		break;
		}
		default:
		break;
		}
		}

		return 0;
		}

automotive/evs/1.1/vts/fuzzing/common.h

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		/*
		* 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.
		*/

		#define LOG_TAG "VtsHalEvsTest"
		#define UNUSED(x) (void)(x)

		const static char kEnumeratorName[] = "EvsEnumeratorHw";

		#include <android/hardware/automotive/evs/1.1/IEvsEnumerator.h>
		#include <fuzzer/FuzzedDataProvider.h>
		#include <hidl/HidlTransportSupport.h>
		#include <utils/StrongPointer.h>

		using namespace ::android::hardware::automotive::evs::V1_1;

		using ::android::sp;
		using ::android::hardware::hidl_death_recipient;
		using ::android::hardware::hidl_vec;

		static sp<IEvsEnumerator> pEnumerator;
		static std::vector<CameraDesc> cameraInfo;

		class EvsDeathRecipient : public hidl_death_recipient {
		public:
		void serviceDied(uint64_t /cookie/,
		const android::wp<::android::hidl::base::V1_0::IBase>& /who/) override {
		abort();
		}
		};

		void loadCameraList() {
		// SetUp() must run first!
		assert(pEnumerator != nullptr);

		// Get the camera list
		pEnumerator->getCameraList_1_1([](hidl_vec<CameraDesc> cameraList) {
		ALOGI("Camera list callback received %zu cameras", cameraList.size());
		cameraInfo.reserve(cameraList.size());
		for (auto&& cam : cameraList) {
		ALOGI("Found camera %s", cam.v1.cameraId.c_str());
		cameraInfo.push_back(cam);
		}
		});
		}