1 /*
2  * Copyright (C) 2022 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include <camera2/OutputConfiguration.h>
18 #include <camera2/SessionConfiguration.h>
19 #include <fuzzer/FuzzedDataProvider.h>
20 #include <gui/IGraphicBufferProducer.h>
21 #include <gui/Surface.h>
22 #include <gui/SurfaceComposerClient.h>
23 #include "camera2common.h"
24 
25 using namespace std;
26 using namespace android;
27 using namespace android::hardware::camera2::params;
28 
29 constexpr int8_t kMaxLoopIterations = 100;
30 constexpr int32_t kSizeMin = 0;
31 constexpr int32_t kSizeMax = 1000;
32 
33 class C2OutputConfigurationFuzzer {
34   public:
35     void process(const uint8_t* data, size_t size);
36 
37   private:
38     void invokeC2OutputConfigFuzzer();
39     unique_ptr<OutputConfiguration> getC2OutputConfig();
40     sp<IGraphicBufferProducer> createIGraphicBufferProducer();
41     FuzzedDataProvider* mFDP = nullptr;
42 };
43 
createIGraphicBufferProducer()44 sp<IGraphicBufferProducer> C2OutputConfigurationFuzzer::createIGraphicBufferProducer() {
45     sp<SurfaceComposerClient> composerClient = new SurfaceComposerClient;
46     sp<SurfaceControl> surfaceControl = composerClient->createSurface(
47             static_cast<String8>(mFDP->ConsumeRandomLengthString(kMaxBytes).c_str()) /* name */,
48             mFDP->ConsumeIntegral<uint32_t>() /* width */,
49             mFDP->ConsumeIntegral<uint32_t>() /* height */,
50             mFDP->ConsumeIntegral<int32_t>() /* format */,
51             mFDP->ConsumeIntegral<int32_t>() /* flags */);
52     if (surfaceControl) {
53         sp<Surface> surface = surfaceControl->getSurface();
54         return surface->getIGraphicBufferProducer();
55     } else {
56         sp<IGraphicBufferProducer> gbp;
57         return gbp;
58     }
59 }
60 
getC2OutputConfig()61 unique_ptr<OutputConfiguration> C2OutputConfigurationFuzzer::getC2OutputConfig() {
62     unique_ptr<OutputConfiguration> outputConfiguration = nullptr;
63     auto selectOutputConfigurationConstructor =
64             mFDP->PickValueInArray<const std::function<void()>>({
65                     [&]() { outputConfiguration = make_unique<OutputConfiguration>(); },
66 
67                     [&]() {
68                         int32_t rotation = mFDP->ConsumeIntegral<int32_t>();
69                         string physicalCameraId = mFDP->ConsumeRandomLengthString(kMaxBytes);
70                         int32_t surfaceSetID = mFDP->ConsumeIntegral<int32_t>();
71                         bool isShared = mFDP->ConsumeBool();
72                         sp<IGraphicBufferProducer> iGBP = createIGraphicBufferProducer();
73                         outputConfiguration = make_unique<OutputConfiguration>(
74                                 iGBP, rotation, physicalCameraId, surfaceSetID, isShared);
75                     },
76 
77                     [&]() {
78                         int32_t rotation = mFDP->ConsumeIntegral<int32_t>();
79                         string physicalCameraId = mFDP->ConsumeRandomLengthString(kMaxBytes);
80                         int32_t surfaceSetID = mFDP->ConsumeIntegral<int32_t>();
81                         bool isShared = mFDP->ConsumeBool();
82                         size_t iGBPSize = mFDP->ConsumeIntegralInRange<size_t>(kSizeMin, kSizeMax);
83                         vector<sp<IGraphicBufferProducer>> iGBPs;
84                         for (size_t idx = 0; idx < iGBPSize; ++idx) {
85                             sp<IGraphicBufferProducer> iGBP = createIGraphicBufferProducer();
86                             iGBPs.push_back(iGBP);
87                         }
88                         outputConfiguration = make_unique<OutputConfiguration>(
89                                 iGBPs, rotation, physicalCameraId, surfaceSetID, isShared);
90                     },
91             });
92     selectOutputConfigurationConstructor();
93     return outputConfiguration;
94 }
95 
invokeC2OutputConfigFuzzer()96 void C2OutputConfigurationFuzzer::invokeC2OutputConfigFuzzer() {
97     unique_ptr<OutputConfiguration> outputConfiguration = getC2OutputConfig();
98     int8_t count = kMaxLoopIterations;
99     while (--count > 0) {
100     unique_ptr<OutputConfiguration> outputConfiguration2 = getC2OutputConfig();
101         auto callC2OutputConfAPIs = mFDP->PickValueInArray<const std::function<void()>>({
102                 [&]() { outputConfiguration->getRotation(); },
103                 [&]() { outputConfiguration->getSurfaceSetID(); },
104                 [&]() { outputConfiguration->getSurfaceType(); },
105                 [&]() { outputConfiguration->getWidth(); },
106                 [&]() { outputConfiguration->getHeight(); },
107                 [&]() { outputConfiguration->isDeferred(); },
108                 [&]() { outputConfiguration->isShared(); },
109                 [&]() { outputConfiguration->getPhysicalCameraId(); },
110                 [&]() { outputConfiguration->gbpsEqual(*outputConfiguration2); },
111                 [&]() { outputConfiguration->sensorPixelModesUsedEqual(*outputConfiguration2); },
112                 [&]() { outputConfiguration->gbpsLessThan(*outputConfiguration2); },
113                 [&]() { outputConfiguration->sensorPixelModesUsedLessThan(*outputConfiguration2); },
114                 [&]() { outputConfiguration->getGraphicBufferProducers(); },
115                 [&]() {
116                     sp<IGraphicBufferProducer> gbp = createIGraphicBufferProducer();
117                     outputConfiguration->addGraphicProducer(gbp);
118                 },
119                 [&]() { outputConfiguration->isMultiResolution(); },
120                 [&]() { outputConfiguration->getColorSpace(); },
121                 [&]() { outputConfiguration->getStreamUseCase(); },
122                 [&]() { outputConfiguration->getTimestampBase(); },
123                 [&]() { outputConfiguration->getMirrorMode(); },
124                 [&]() { outputConfiguration->useReadoutTimestamp(); },
125         });
126         callC2OutputConfAPIs();
127     }
128     // Not keeping invokeReadWrite() APIs in while loop to avoid possible OOM.
129     invokeReadWriteNullParcel<OutputConfiguration>(outputConfiguration.get());
130     if (mFDP->ConsumeBool()) {
131         invokeReadWriteParcel<OutputConfiguration>(outputConfiguration.get());
132     } else {
133         invokeNewReadWriteParcel<OutputConfiguration>(outputConfiguration.get(), *mFDP);
134     }
135 }
136 
process(const uint8_t * data,size_t size)137 void C2OutputConfigurationFuzzer::process(const uint8_t* data, size_t size) {
138     mFDP = new FuzzedDataProvider(data, size);
139     invokeC2OutputConfigFuzzer();
140     delete mFDP;
141 }
142 
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)143 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
144     C2OutputConfigurationFuzzer c2OutputConfigurationFuzzer;
145     c2OutputConfigurationFuzzer.process(data, size);
146     return 0;
147 }
148