diff options
5 files changed, 145 insertions, 0 deletions
diff --git a/libs/binder/tests/parcel_fuzzer/Android.bp b/libs/binder/tests/parcel_fuzzer/Android.bp index 38bde3a011..57d496d2fb 100644 --- a/libs/binder/tests/parcel_fuzzer/Android.bp +++ b/libs/binder/tests/parcel_fuzzer/Android.bp @@ -66,10 +66,13 @@ cc_library_static { srcs: [ "random_fd.cpp", "random_parcel.cpp", + "libbinder_driver.cpp", + "libbinder_ndk_driver.cpp", ], shared_libs: [ "libbase", "libbinder", + "libbinder_ndk", "libcutils", "libutils", ], diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/libbinder_driver.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/libbinder_driver.h new file mode 100644 index 0000000000..a9a6197439 --- /dev/null +++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/libbinder_driver.h @@ -0,0 +1,37 @@ +/* + * 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 diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/libbinder_ndk_driver.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/libbinder_ndk_driver.h new file mode 100644 index 0000000000..f2b782337c --- /dev/null +++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/libbinder_ndk_driver.h @@ -0,0 +1,37 @@ +/* + * 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 diff --git a/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp b/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp new file mode 100644 index 0000000000..e849c9bbce --- /dev/null +++ b/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp @@ -0,0 +1,37 @@ +/* + * 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 diff --git a/libs/binder/tests/parcel_fuzzer/libbinder_ndk_driver.cpp b/libs/binder/tests/parcel_fuzzer/libbinder_ndk_driver.cpp new file mode 100644 index 0000000000..462ef9a5e9 --- /dev/null +++ b/libs/binder/tests/parcel_fuzzer/libbinder_ndk_driver.cpp @@ -0,0 +1,31 @@ +/* + * 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 |