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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 <gui/BufferQueueConsumer.h>
#include <gui/BufferQueueCore.h>
#include <gui/BufferQueueProducer.h>
#include <gui/LayerMetadata.h>
#include <gui/OccupancyTracker.h>
#include <gui/StreamSplitter.h>
#include <gui/Surface.h>
#include <gui/SurfaceControl.h>
#include <gui/view/Surface.h>
#include <libgui_fuzzer_utils.h>
#include "android/view/LayerMetadataKey.h"
using namespace android;
constexpr int32_t kMaxBytes = 256;
constexpr int32_t kMatrixSize = 4;
constexpr int32_t kLayerMetadataKeyCount = 8;
constexpr uint32_t kMetadataKey[] = {
(uint32_t)view::LayerMetadataKey::METADATA_OWNER_UID,
(uint32_t)view::LayerMetadataKey::METADATA_WINDOW_TYPE,
(uint32_t)view::LayerMetadataKey::METADATA_TASK_ID,
(uint32_t)view::LayerMetadataKey::METADATA_MOUSE_CURSOR,
(uint32_t)view::LayerMetadataKey::METADATA_ACCESSIBILITY_ID,
(uint32_t)view::LayerMetadataKey::METADATA_OWNER_PID,
(uint32_t)view::LayerMetadataKey::METADATA_DEQUEUE_TIME,
(uint32_t)view::LayerMetadataKey::METADATA_GAME_MODE,
};
class ParcelableFuzzer {
public:
ParcelableFuzzer(const uint8_t* data, size_t size) : mFdp(data, size){};
void process();
private:
void invokeStreamSplitter();
void invokeOccupancyTracker();
void invokeLayerDebugInfo();
void invokeLayerMetadata();
void invokeViewSurface();
FuzzedDataProvider mFdp;
};
void ParcelableFuzzer::invokeViewSurface() {
view::Surface surface;
surface.name = String16((mFdp.ConsumeRandomLengthString(kMaxBytes)).c_str());
Parcel parcel;
surface.writeToParcel(&parcel);
parcel.setDataPosition(0);
surface.readFromParcel(&parcel);
bool nameAlreadyWritten = mFdp.ConsumeBool();
surface.writeToParcel(&parcel, nameAlreadyWritten);
parcel.setDataPosition(0);
surface.readFromParcel(&parcel, mFdp.ConsumeBool());
}
void ParcelableFuzzer::invokeLayerMetadata() {
std::unordered_map<uint32_t, std::vector<uint8_t>> map;
for (size_t idx = 0; idx < kLayerMetadataKeyCount; ++idx) {
std::vector<uint8_t> data;
for (size_t idx1 = 0; idx1 < mFdp.ConsumeIntegral<uint32_t>(); ++idx1) {
data.push_back(mFdp.ConsumeIntegral<uint8_t>());
}
map[kMetadataKey[idx]] = data;
}
LayerMetadata metadata(map);
uint32_t key = mFdp.PickValueInArray(kMetadataKey);
metadata.setInt32(key, mFdp.ConsumeIntegral<int32_t>());
metadata.itemToString(key, (mFdp.ConsumeRandomLengthString(kMaxBytes)).c_str());
Parcel parcel;
metadata.writeToParcel(&parcel);
parcel.setDataPosition(0);
metadata.readFromParcel(&parcel);
}
void ParcelableFuzzer::invokeLayerDebugInfo() {
gui::LayerDebugInfo info;
info.mName = mFdp.ConsumeRandomLengthString(kMaxBytes);
info.mParentName = mFdp.ConsumeRandomLengthString(kMaxBytes);
info.mType = mFdp.ConsumeRandomLengthString(kMaxBytes);
info.mLayerStack = mFdp.ConsumeIntegral<uint32_t>();
info.mX = mFdp.ConsumeFloatingPoint<float>();
info.mY = mFdp.ConsumeFloatingPoint<float>();
info.mZ = mFdp.ConsumeIntegral<uint32_t>();
info.mWidth = mFdp.ConsumeIntegral<int32_t>();
info.mHeight = mFdp.ConsumeIntegral<int32_t>();
info.mActiveBufferWidth = mFdp.ConsumeIntegral<int32_t>();
info.mActiveBufferHeight = mFdp.ConsumeIntegral<int32_t>();
info.mActiveBufferStride = mFdp.ConsumeIntegral<int32_t>();
info.mActiveBufferFormat = mFdp.ConsumeIntegral<int32_t>();
info.mNumQueuedFrames = mFdp.ConsumeIntegral<int32_t>();
info.mFlags = mFdp.ConsumeIntegral<uint32_t>();
info.mPixelFormat = mFdp.ConsumeIntegral<int32_t>();
info.mTransparentRegion = Region(getRect(&mFdp));
info.mVisibleRegion = Region(getRect(&mFdp));
info.mSurfaceDamageRegion = Region(getRect(&mFdp));
info.mCrop = getRect(&mFdp);
info.mDataSpace = static_cast<android_dataspace>(mFdp.PickValueInArray(kDataspaces));
info.mColor = half4(mFdp.ConsumeFloatingPoint<float>(), mFdp.ConsumeFloatingPoint<float>(),
mFdp.ConsumeFloatingPoint<float>(), mFdp.ConsumeFloatingPoint<float>());
for (size_t idx = 0; idx < kMatrixSize; ++idx) {
info.mMatrix[idx / 2][idx % 2] = mFdp.ConsumeFloatingPoint<float>();
}
info.mIsOpaque = mFdp.ConsumeBool();
info.mContentDirty = mFdp.ConsumeBool();
info.mStretchEffect.width = mFdp.ConsumeFloatingPoint<float>();
info.mStretchEffect.height = mFdp.ConsumeFloatingPoint<float>();
info.mStretchEffect.vectorX = mFdp.ConsumeFloatingPoint<float>();
info.mStretchEffect.vectorY = mFdp.ConsumeFloatingPoint<float>();
info.mStretchEffect.maxAmountX = mFdp.ConsumeFloatingPoint<float>();
info.mStretchEffect.maxAmountY = mFdp.ConsumeFloatingPoint<float>();
info.mStretchEffect.mappedChildBounds =
FloatRect(mFdp.ConsumeFloatingPoint<float>(), mFdp.ConsumeFloatingPoint<float>(),
mFdp.ConsumeFloatingPoint<float>(), mFdp.ConsumeFloatingPoint<float>());
Parcel parcel;
info.writeToParcel(&parcel);
parcel.setDataPosition(0);
info.readFromParcel(&parcel);
}
void ParcelableFuzzer::invokeOccupancyTracker() {
nsecs_t totalTime = mFdp.ConsumeIntegral<uint32_t>();
size_t numFrames = mFdp.ConsumeIntegral<size_t>();
float occupancyAverage = mFdp.ConsumeFloatingPoint<float>();
OccupancyTracker::Segment segment(totalTime, numFrames, occupancyAverage,
mFdp.ConsumeBool() /*usedThirdBuffer*/);
Parcel parcel;
segment.writeToParcel(&parcel);
parcel.setDataPosition(0);
segment.readFromParcel(&parcel);
}
void ParcelableFuzzer::invokeStreamSplitter() {
sp<IGraphicBufferProducer> producer;
sp<IGraphicBufferConsumer> consumer;
BufferQueue::createBufferQueue(&producer, &consumer);
sp<StreamSplitter> splitter;
StreamSplitter::createSplitter(consumer, &splitter);
splitter->addOutput(producer);
std::string name = mFdp.ConsumeRandomLengthString(kMaxBytes);
splitter->setName(String8(name.c_str()));
}
void ParcelableFuzzer::process() {
invokeStreamSplitter();
invokeOccupancyTracker();
invokeLayerDebugInfo();
invokeLayerMetadata();
invokeViewSurface();
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
ParcelableFuzzer libGuiFuzzer(data, size);
libGuiFuzzer.process();
return 0;
}
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