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Add fuzzer for EVS HAL

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Bug: 147513710
Test: Follow go/android-fuzzing to build and test

Change-Id: Ia2a64f73d3928bc529a1785e999ed7f032446f8a
This commit is contained in:
Zhaoming Yin
2020-01-16 10:29:12 -08:00
parent 87880e82d0
commit 838c4c19d3
3 changed files with 191 additions and 0 deletions
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50
automotive/evs/1.1/vts/fuzzing/Android.bp Normal file
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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,
},
}

84
automotive/evs/1.1/vts/fuzzing/VtsHalEvsV1_1CameraOpenFuzz.cpp Normal file
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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;
}

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automotive/evs/1.1/vts/fuzzing/common.h Normal file
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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);
}
});
}