Delete (most) sf fuzzers

cc_defaults {

    name: "surfaceflinger_fuzz_defaults",

    include_dirs: [

        "frameworks/native/services/surfaceflinger/tests/unittests",

    ],

    static_libs: [

        "android.hardware.graphics.composer@2.1-resources",

        "libc++fs",

        "libgmock",

        "libgui_mocks",

        "libgmock_ndk",

        "libgmock_main",

        "libgtest_ndk_c++",

        "libgmock_main_ndk",

        "librenderengine_mocks",

        "libsurfaceflinger_common",

        "perfetto_trace_protos",

        "libcompositionengine_mocks",

        "perfetto_trace_protos",

    ],

    shared_libs: [

        "libprotoutil",

        "libstatssocket",

        "libstatspull",

        "libtimestats",

        "libtimestats_proto",

        "libprotobuf-cpp-full",

        "android.hardware.graphics.mapper@2.0",

        "android.hardware.graphics.mapper@3.0",

        "android.hardware.graphics.mapper@4.0",

    ],

    srcs: [

        ":libsurfaceflinger_sources",

        ":libsurfaceflinger_mock_sources",

    ],

    defaults: [

        "libsurfaceflinger_defaults",

    ],

    header_libs: [

        "libui_fuzzableDataspaces_headers",

        "libsurfaceflinger_headers",

        "libui_headers",

    ],

    cflags: [

        "-Wno-unused-result",

    },

}

cc_fuzz {

    name: "surfaceflinger_fuzzer",

    defaults: [

        "surfaceflinger_fuzz_defaults",

    ],

    srcs: [

        "surfaceflinger_fuzzer.cpp",

    ],

}

cc_fuzz {

    name: "surfaceflinger_displayhardware_fuzzer",

    defaults: [

        "surfaceflinger_fuzz_defaults",

    ],

    srcs: [

        "surfaceflinger_displayhardware_fuzzer.cpp",

    ],

    header_libs: [

        "android.hardware.graphics.composer@2.4-command-buffer",

        "android.hardware.graphics.composer@2.4-hal",

    ],

}

cc_fuzz {

    name: "surfaceflinger_scheduler_fuzzer",

    defaults: [

        "surfaceflinger_fuzz_defaults",

    ],

    srcs: [

        "surfaceflinger_scheduler_fuzzer.cpp",

    ],

}

cc_fuzz {

    name: "surfaceflinger_layer_fuzzer",

    defaults: [

        "surfaceflinger_fuzz_defaults",

    ],

    header_libs: [

        "libgui_headers",

    ],

    static_libs: [

        "librenderengine",

    ],

    srcs: [

        "surfaceflinger_layer_fuzzer.cpp",

    ],

}

cc_fuzz {

    name: "surfaceflinger_frametracer_fuzzer",

    defaults: [

        "surfaceflinger_fuzz_defaults",

    ],

    srcs: [

        "surfaceflinger_frametracer_fuzzer.cpp",

    ],

}

cc_fuzz {

    name: "surfaceflinger_service_fuzzer",

    defaults: [

# Fuzzers for SurfaceFlinger

## Table of contents

+ [SurfaceFlinger](#SurfaceFlinger)

+ [DisplayHardware](#DisplayHardware)

+ [Scheduler](#Scheduler)

+ [Layer](#Layer)

+ [FrameTracer](#FrameTracer)

# <a name="SurfaceFlinger"></a> Fuzzer for SurfaceFlinger

SurfaceFlinger supports the following data sources:

1. Pixel Formats (parameter name: `defaultCompositionPixelFormat`)

2. Data Spaces (parameter name: `defaultCompositionDataspace`)

3. Rotations (parameter name: `internalDisplayOrientation`)

3. Surface composer tags (parameter name: `onTransact`)

You can find the possible values in the fuzzer's source code.

#### Steps to run

1. Build the fuzzer

```

  $ mm -j$(nproc) surfaceflinger_fuzzer

```

2. To run on device

```

  $ adb sync data

  $ adb shell /data/fuzz/arm64/surfaceflinger_fuzzer/surfaceflinger_fuzzer

```

# <a name="DisplayHardware"></a> Fuzzer for DisplayHardware

DisplayHardware supports the following parameters:

1. Hal Capability (parameter name: `hasCapability`)

2. Hal BlendMode (parameter name: `setBlendMode`)

3. Hal Composition (parameter name: `setCompositionType`)

4. Hal Display Capability (parameter name: `hasDisplayCapability`)

5. Composition Types (parameter name: `prepareFrame`)

6. Color Modes (parameter name: `setActiveColorMode`)

7. Render Intents (parameter name: `setActiveColorMode`)

8. Power Modes (parameter name: `setPowerMode`)

9. Content Types (parameter name: `setContentType`)

10. Data Space (parameter name: `setDataspace`)

11. Transforms (parameter name: `setLayerTransform`)

You can find the possible values in the fuzzer's source code.

#### Steps to run

1. Build the fuzzer

```

  $ mm -j$(nproc) surfaceflinger_displayhardware_fuzzer

```

2. Run on device

```

  $ adb sync data

  $ adb shell /data/fuzz/arm64/surfaceflinger_displayhardware_fuzzer/surfaceflinger_displayhardware_fuzzer

```

# <a name="Scheduler"></a> Fuzzer for Scheduler

Scheduler supports the following parameters:

1. VSync Periods (parameter name: `lowFpsPeriod`)

You can find the possible values in the fuzzer's source code.

#### Steps to run

1. Build the fuzzer

```

  $ mm -j$(nproc) surfaceflinger_scheduler_fuzzer

```

2. To run on device

```

  $ adb sync data

  $ adb shell /data/fuzz/arm64/surfaceflinger_scheduler_fuzzer/surfaceflinger_scheduler_fuzzer

```

# <a name="Layer"></a> Fuzzer for Layer

Layer supports the following parameters:

1. Display Connection Types (parameter name: `fakeDisplay`)

2. State Sets (parameter name: `traverseInZOrder`)

3. Disconnect modes (parameter name: `disconnect`)

4. Data Spaces (parameter name: `setDataspace`)

You can find the possible values in the fuzzer's source code.

#### Steps to run

1. Build the fuzzer

```

  $ mm -j$(nproc) surfaceflinger_layer_fuzzer

```

2. Run on device

```

  $ adb sync data

  $ adb shell /data/fuzz/arm64/surfaceflinger_layer_fuzzer/surfaceflinger_layer_fuzzer

```

# <a name="FrameTracer"></a> Fuzzer for FrameTracer

#### Steps to run

1. Build the fuzzer

```

  $ mm -j$(nproc) surfaceflinger_frametracer_fuzzer

```

2. To run on device

```

  $ adb sync data

  $ adb shell /data/fuzz/arm64/surfaceflinger_frametracer_fuzzer/surfaceflinger_frametracer_fuzzer

```

/*

 * Copyright 2021 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.

 */

#pragma once

#include <utils/Condition.h>

#include <chrono>

#include <vector>

#include <android/hardware/graphics/composer/2.4/IComposer.h>

#include <composer-hal/2.1/ComposerClient.h>

#include <composer-hal/2.2/ComposerClient.h>

#include <composer-hal/2.3/ComposerClient.h>

#include <composer-hal/2.4/ComposerClient.h>

#include "DisplayHardware/HWC2.h"

#include "surfaceflinger_fuzzers_utils.h"

namespace {

class LayerImpl;

class Frame;

class DelayedEventGenerator;

} // namespace

namespace android {

class SurfaceComposerClient;

} // namespace android

namespace android::hardware::graphics::composer::hal {

using aidl::android::hardware::graphics::common::DisplayHotplugEvent;

using aidl::android::hardware::graphics::composer3::RefreshRateChangedDebugData;

using ::android::hardware::Return;

using ::android::hardware::Void;

using ::android::HWC2::ComposerCallback;

class ComposerCallbackBridge : public IComposerCallback {

public:

    ComposerCallbackBridge(ComposerCallback* callback, bool vsyncSwitchingSupported)

          : mCallback(callback), mVsyncSwitchingSupported(vsyncSwitchingSupported) {}

    Return<void> onHotplug(HWDisplayId display, Connection connection) override {

        const auto event = connection == Connection::CONNECTED ? DisplayHotplugEvent::CONNECTED

                                                               : DisplayHotplugEvent::DISCONNECTED;

        mCallback->onComposerHalHotplugEvent(display, event);

        return Void();

    }

    Return<void> onRefresh(HWDisplayId display) override {

        mCallback->onComposerHalRefresh(display);

        return Void();

    }

    Return<void> onVsync(HWDisplayId display, int64_t timestamp) override {

        if (!mVsyncSwitchingSupported) {

            mCallback->onComposerHalVsync(display, timestamp, std::nullopt);

        }

        return Void();

    }

    Return<void> onVsync_2_4(HWDisplayId display, int64_t timestamp,

                             VsyncPeriodNanos vsyncPeriodNanos) override {

        if (mVsyncSwitchingSupported) {

            mCallback->onComposerHalVsync(display, timestamp, vsyncPeriodNanos);

        }

        return Void();

    }

    Return<void> onVsyncPeriodTimingChanged(HWDisplayId display,

                                            const VsyncPeriodChangeTimeline& timeline) override {

        mCallback->onComposerHalVsyncPeriodTimingChanged(display, timeline);

        return Void();

    }

    Return<void> onSeamlessPossible(HWDisplayId display) override {

        mCallback->onComposerHalSeamlessPossible(display);

        return Void();

    }

private:

    ComposerCallback* const mCallback;

    const bool mVsyncSwitchingSupported;

};

struct TestHWC2ComposerCallback : public HWC2::ComposerCallback {

    virtual ~TestHWC2ComposerCallback() = default;

    void onComposerHalHotplugEvent(HWDisplayId, DisplayHotplugEvent) {}

    void onComposerHalRefresh(HWDisplayId) {}

    void onComposerHalVsync(HWDisplayId, int64_t, std::optional<VsyncPeriodNanos>) {}

    void onComposerHalVsyncPeriodTimingChanged(HWDisplayId, const VsyncPeriodChangeTimeline&) {}

    void onComposerHalSeamlessPossible(HWDisplayId) {}

    void onComposerHalVsyncIdle(HWDisplayId) {}

    void onRefreshRateChangedDebug(const RefreshRateChangedDebugData&) {}

};

} // namespace android::hardware::graphics::composer::hal

/*

 * Copyright 2021 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 <FrameTracer/FrameTracer.h>

#include <fuzzer/FuzzedDataProvider.h>

#include <perfetto/trace/trace.pb.h>

namespace android::fuzz {

using namespace google::protobuf;

constexpr size_t kMaxStringSize = 256;

constexpr size_t kMinLayerIds = 1;

constexpr size_t kMaxLayerIds = 10;

constexpr int32_t kMinRange = 0;

constexpr int32_t kConfigDuration = 500;

constexpr int32_t kBufferSize = 1024;

constexpr int32_t kTimeOffset = 100000;

class FrameTracerFuzzer {

public:

    FrameTracerFuzzer(const uint8_t* data, size_t size) : mFdp(data, size) {

        // Fuzzer is single-threaded, so no need to be thread-safe.

        static bool wasInitialized = false;

        if (!wasInitialized) {

            perfetto::TracingInitArgs args;

            args.backends = perfetto::kInProcessBackend;

            perfetto::Tracing::Initialize(args);

            wasInitialized = true;

        }

        mFrameTracer = std::make_unique<android::FrameTracer>();

    }

    ~FrameTracerFuzzer() { mFrameTracer.reset(); }

    void process();

private:

    void traceTimestamp();

    void traceTimestamp(std::vector<int32_t> layerIds, size_t numLayerIds);

    void traceFence(std::vector<int32_t> layerIds, size_t numLayerIds);

    std::unique_ptr<perfetto::TracingSession> getTracingSessionForTest();

    std::unique_ptr<android::FrameTracer> mFrameTracer = nullptr;

    std::vector<int32_t> generateLayerIds(size_t numLayerIds);

    android::FenceToFenceTimeMap mFenceFactory;

    FuzzedDataProvider mFdp;

};

std::unique_ptr<perfetto::TracingSession> FrameTracerFuzzer::getTracingSessionForTest() {

    perfetto::TraceConfig cfg;

    cfg.set_duration_ms(mFdp.ConsumeIntegralInRange<int32_t>(kMinRange, kConfigDuration));

    cfg.add_buffers()->set_size_kb(mFdp.ConsumeIntegralInRange<int32_t>(kMinRange, kBufferSize));

    auto* dsCfg = cfg.add_data_sources()->mutable_config();

    dsCfg->set_name(android::FrameTracer::kFrameTracerDataSource);

    auto tracingSession = perfetto::Tracing::NewTrace(perfetto::kInProcessBackend);

    tracingSession->Setup(cfg);

    return tracingSession;

}

std::vector<int32_t> FrameTracerFuzzer::generateLayerIds(size_t numLayerIds) {

    std::vector<int32_t> layerIds;

    for (size_t i = 0; i < numLayerIds; ++i) {

        layerIds.push_back(mFdp.ConsumeIntegral<int32_t>());

    }

    return layerIds;

}

void FrameTracerFuzzer::traceTimestamp(std::vector<int32_t> layerIds, size_t numLayerIds) {

    uint32_t layerId = layerIds.at(mFdp.ConsumeIntegralInRange<size_t>(0, numLayerIds - 1));

    android::FrameTracer::FrameEvent::BufferEventType type = static_cast<

            android::FrameTracer::FrameEvent::BufferEventType>(

            mFdp.ConsumeIntegralInRange<uint32_t>(android::FrameTracer::FrameEvent::UNSPECIFIED,

                                                  android::FrameTracer::FrameEvent::CANCEL));

    mFrameTracer->traceTimestamp(layerId, mFdp.ConsumeIntegral<uint64_t>() /*bufferID*/,

                                 mFdp.ConsumeIntegral<uint64_t>() /*frameNumber*/,

                                 mFdp.ConsumeIntegral<nsecs_t>() /*timestamp*/, type,

                                 mFdp.ConsumeIntegral<nsecs_t>() /*duration*/);

}

void FrameTracerFuzzer::traceFence(std::vector<int32_t> layerIds, size_t numLayerIds) {

    const nsecs_t signalTime =

            mFdp.ConsumeBool() ? android::Fence::SIGNAL_TIME_PENDING : systemTime();

    const nsecs_t startTime = (signalTime == android::Fence::SIGNAL_TIME_PENDING)

            ? signalTime - kTimeOffset

            : signalTime + kTimeOffset;

    auto fence = mFenceFactory.createFenceTimeForTest(android::Fence::NO_FENCE);

    mFenceFactory.signalAllForTest(android::Fence::NO_FENCE, signalTime);

    int32_t layerId = layerIds.at(mFdp.ConsumeIntegralInRange<size_t>(0, numLayerIds - 1));

    mFrameTracer->traceFence(layerId, mFdp.ConsumeIntegral<uint64_t>() /*bufferID*/,

                             mFdp.ConsumeIntegral<uint64_t>() /*frameNumber*/, fence,

                             android::FrameTracer::FrameEvent::ACQUIRE_FENCE, startTime);

}

void FrameTracerFuzzer::process() {

    std::vector<int32_t> layerIds =

            generateLayerIds(mFdp.ConsumeIntegralInRange<size_t>(kMinLayerIds, kMaxLayerIds));

    std::unique_ptr<perfetto::TracingSession> tracingSession;

    while (mFdp.remaining_bytes()) {

        auto invokeFrametracerAPI = mFdp.PickValueInArray<const std::function<void()>>({

                [&]() { mFrameTracer->registerDataSource(); },

                [&]() {

                    if (tracingSession) {

                        tracingSession->StopBlocking();

                    }

                    tracingSession = getTracingSessionForTest();

                    tracingSession->StartBlocking();

                },

                [&]() { traceTimestamp(layerIds, layerIds.size()); },

                [&]() { traceFence(layerIds, layerIds.size()); },

                [&]() {

                    for (auto it = layerIds.begin(); it != layerIds.end(); ++it) {

                        mFrameTracer->traceNewLayer(*it /*layerId*/,

                                                    mFdp.ConsumeRandomLengthString(

                                                            kMaxStringSize) /*layerName*/);

                    }

                },

                [&]() { mFenceFactory.signalAllForTest(android::Fence::NO_FENCE, systemTime()); },

        });

        invokeFrametracerAPI();

    }

    for (auto it = layerIds.begin(); it != layerIds.end(); ++it) {

        mFrameTracer->onDestroy(*it);

    }

}

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

    FrameTracerFuzzer frameTracerFuzzer(data, size);

    frameTracerFuzzer.process();

    return 0;

}

} // namespace android::fuzz