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/*
* Copyright 2022 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 <MapperHelpers.h>
#include <fuzzer/FuzzedDataProvider.h>
#include "InputCommonConverter.h"
#include "InputProcessor.h"
namespace android {
static constexpr int32_t MAX_AXES = 64;
// Used by two fuzz operations and a bit lengthy, so pulled out into a function.
NotifyMotionArgs generateFuzzedMotionArgs(FuzzedDataProvider &fdp) {
// Create a basic motion event for testing
PointerProperties properties;
properties.id = 0;
properties.toolType = getFuzzedToolType(fdp);
PointerCoords coords;
coords.clear();
for (int32_t i = 0; i < fdp.ConsumeIntegralInRange<int32_t>(0, MAX_AXES); i++) {
coords.setAxisValue(fdp.ConsumeIntegral<int32_t>(), fdp.ConsumeFloatingPoint<float>());
}
const nsecs_t downTime = 2;
const nsecs_t readTime = downTime + fdp.ConsumeIntegralInRange<nsecs_t>(0, 1E8);
NotifyMotionArgs motionArgs(/*sequenceNum=*/fdp.ConsumeIntegral<uint32_t>(),
/*eventTime=*/downTime, readTime,
/*deviceId=*/fdp.ConsumeIntegral<int32_t>(), AINPUT_SOURCE_ANY,
ADISPLAY_ID_DEFAULT,
/*policyFlags=*/fdp.ConsumeIntegral<uint32_t>(),
AMOTION_EVENT_ACTION_DOWN,
/*actionButton=*/fdp.ConsumeIntegral<int32_t>(),
/*flags=*/fdp.ConsumeIntegral<int32_t>(), AMETA_NONE,
/*buttonState=*/fdp.ConsumeIntegral<int32_t>(),
MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE,
/*pointerCount=*/1, &properties, &coords,
/*xPrecision=*/fdp.ConsumeFloatingPoint<float>(),
/*yPrecision=*/fdp.ConsumeFloatingPoint<float>(),
AMOTION_EVENT_INVALID_CURSOR_POSITION,
AMOTION_EVENT_INVALID_CURSOR_POSITION, downTime,
/*videoFrames=*/{});
return motionArgs;
}
extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
FuzzedDataProvider fdp(data, size);
std::unique_ptr<FuzzInputListener> mFuzzListener = std::make_unique<FuzzInputListener>();
std::unique_ptr<InputProcessorInterface> mClassifier =
std::make_unique<InputProcessor>(*mFuzzListener);
while (fdp.remaining_bytes() > 0) {
fdp.PickValueInArray<std::function<void()>>({
[&]() -> void {
// SendToNextStage_NotifyConfigurationChangedArgs
mClassifier->notifyConfigurationChanged(
{/*sequenceNum=*/fdp.ConsumeIntegral<int32_t>(),
/*eventTime=*/fdp.ConsumeIntegral<nsecs_t>()});
},
[&]() -> void {
// SendToNextStage_NotifyKeyArgs
const nsecs_t eventTime = fdp.ConsumeIntegral<nsecs_t>();
const nsecs_t readTime =
eventTime + fdp.ConsumeIntegralInRange<nsecs_t>(0, 1E8);
mClassifier->notifyKey({/*sequenceNum=*/fdp.ConsumeIntegral<int32_t>(),
eventTime, readTime,
/*deviceId=*/fdp.ConsumeIntegral<int32_t>(),
AINPUT_SOURCE_KEYBOARD, ADISPLAY_ID_DEFAULT,
/*policyFlags=*/fdp.ConsumeIntegral<uint32_t>(),
AKEY_EVENT_ACTION_DOWN,
/*flags=*/fdp.ConsumeIntegral<int32_t>(), AKEYCODE_HOME,
/*scanCode=*/fdp.ConsumeIntegral<int32_t>(), AMETA_NONE,
/*downTime=*/fdp.ConsumeIntegral<nsecs_t>()});
},
[&]() -> void {
// SendToNextStage_NotifyMotionArgs
mClassifier->notifyMotion(generateFuzzedMotionArgs(fdp));
},
[&]() -> void {
// SendToNextStage_NotifySwitchArgs
mClassifier->notifySwitch({/*sequenceNum=*/fdp.ConsumeIntegral<int32_t>(),
/*eventTime=*/fdp.ConsumeIntegral<nsecs_t>(),
/*policyFlags=*/fdp.ConsumeIntegral<uint32_t>(),
/*switchValues=*/fdp.ConsumeIntegral<uint32_t>(),
/*switchMask=*/fdp.ConsumeIntegral<uint32_t>()});
},
[&]() -> void {
// SendToNextStage_NotifyDeviceResetArgs
mClassifier->notifyDeviceReset({/*sequenceNum=*/fdp.ConsumeIntegral<int32_t>(),
/*eventTime=*/fdp.ConsumeIntegral<nsecs_t>(),
/*deviceId=*/fdp.ConsumeIntegral<int32_t>()});
},
[&]() -> void {
// InputClassifierConverterTest
const NotifyMotionArgs motionArgs = generateFuzzedMotionArgs(fdp);
aidl::android::hardware::input::common::MotionEvent motionEvent =
notifyMotionArgsToHalMotionEvent(motionArgs);
},
})();
}
return 0;
}
} // namespace android