Merge "libbinder_random_parcel: driver" am: c572d08c am: 1fa80dfa am: a3baa1fa am: 7d3b5cf1

    srcs: [

        "random_fd.cpp",

        "random_parcel.cpp",

        "libbinder_driver.cpp",

        "libbinder_ndk_driver.cpp",

    ],

    shared_libs: [

        "libbase",

        "libbinder",

        "libbinder_ndk",

        "libcutils",

        "libutils",

    ],

/*

 * Copyright (C) 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.

 */

#pragma once

#include <binder/IBinder.h>

#include <fuzzer/FuzzedDataProvider.h>

namespace android {

/**

 * Based on the random data in provider, construct an arbitrary number of

 * Parcel objects and send them to the service in serial.

 *

 * Usage:

 *

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

 *       FuzzedDataProvider provider = FuzzedDataProvider(data, size);

 *       // can use provider here to create a service with different options

 *       sp<IFoo> myService = sp<IFoo>::make(...);

 *       fuzzService(myService, std::move(provider));

 *   }

 */

void fuzzService(const sp<IBinder>& binder, FuzzedDataProvider&& provider);

} // namespace android

/*

 * Copyright (C) 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.

 */

#pragma once

#include <android/binder_parcel.h>

#include <fuzzer/FuzzedDataProvider.h>

namespace android {

/**

 * Based on the random data in provider, construct an arbitrary number of

 * Parcel objects and send them to the service in serial.

 *

 * Usage:

 *

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

 *       FuzzedDataProvider provider = FuzzedDataProvider(data, size);

 *       // can use provider here to create a service with different options

 *       std::shared_ptr<IFoo> myService = ndk::SharedRefBase<IFoo>::make(...);

 *       fuzzService(myService->asBinder().get(), std::move(provider));

 *   }

 */

void fuzzService(AIBinder* binder, FuzzedDataProvider&& provider);

} // namespace android

/*

 * Copyright (C) 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 <fuzzbinder/libbinder_driver.h>

#include <fuzzbinder/random_parcel.h>

namespace android {

void fuzzService(const sp<IBinder>& binder, FuzzedDataProvider&& provider) {

    while (provider.remaining_bytes() > 0) {

        uint32_t code = provider.ConsumeIntegral<uint32_t>();

        uint32_t flags = provider.ConsumeIntegral<uint32_t>();

        Parcel data;

        std::vector<uint8_t> subData = provider.ConsumeBytes<uint8_t>(

                provider.ConsumeIntegralInRange<size_t>(0, provider.remaining_bytes()));

        fillRandomParcel(&data, FuzzedDataProvider(subData.data(), subData.size()));

        Parcel reply;

        (void)binder->transact(code, data, &reply, flags);

    }

}

} // namespace android

/*

 * Copyright (C) 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 <fuzzbinder/libbinder_ndk_driver.h>

#include <fuzzbinder/libbinder_driver.h>

#include <fuzzbinder/random_parcel.h>

// libbinder_ndk doesn't export this header which breaks down its API for NDK

// and APEX users, but we need access to it to fuzz.

#include "../../ndk/ibinder_internal.h"

namespace android {

void fuzzService(AIBinder* binder, FuzzedDataProvider&& provider) {

    fuzzService(binder->getBinder(), std::move(provider));

}

} // namespace android