| /* |
| * Copyright (C) 2019 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. |
| */ |
| #define FUZZ_LOG_TAG "binder_ndk" |
| |
| #include "binder_ndk.h" |
| #include "aidl/parcelables/EmptyParcelable.h" |
| #include "aidl/parcelables/GenericDataParcelable.h" |
| #include "aidl/parcelables/SingleDataParcelable.h" |
| |
| #include <android/binder_parcel_utils.h> |
| #include <android/binder_parcelable_utils.h> |
| |
| #include "util.h" |
| |
| // TODO(b/142061461): parent class |
| class SomeParcelable { |
| public: |
| binder_status_t writeToParcel(AParcel* /*parcel*/) { return STATUS_OK; } |
| binder_status_t readFromParcel(const AParcel* parcel) { |
| return AParcel_readInt32(parcel, &mValue); |
| } |
| |
| private: |
| int32_t mValue = 0; |
| }; |
| |
| class ISomeInterface : public ::ndk::ICInterface { |
| public: |
| ISomeInterface() = default; |
| virtual ~ISomeInterface() = default; |
| static binder_status_t readFromParcel(const AParcel* parcel, |
| std::shared_ptr<ISomeInterface>* instance); |
| }; |
| |
| static binder_status_t onTransact(AIBinder*, transaction_code_t, const AParcel*, AParcel*) { |
| return STATUS_UNKNOWN_TRANSACTION; |
| } |
| |
| static AIBinder_Class* g_class = ::ndk::ICInterface::defineClass("ISomeInterface", onTransact); |
| |
| class BpSomeInterface : public ::ndk::BpCInterface<ISomeInterface> { |
| public: |
| explicit BpSomeInterface(const ::ndk::SpAIBinder& binder) : BpCInterface(binder) {} |
| virtual ~BpSomeInterface() = default; |
| }; |
| |
| binder_status_t ISomeInterface::readFromParcel(const AParcel* parcel, |
| std::shared_ptr<ISomeInterface>* instance) { |
| ::ndk::SpAIBinder binder; |
| binder_status_t status = AParcel_readStrongBinder(parcel, binder.getR()); |
| if (status == STATUS_OK) { |
| if (AIBinder_associateClass(binder.get(), g_class)) { |
| *instance = std::static_pointer_cast<ISomeInterface>( |
| ::ndk::ICInterface::asInterface(binder.get())); |
| } else { |
| *instance = ::ndk::SharedRefBase::make<BpSomeInterface>(binder); |
| } |
| } |
| return status; |
| } |
| |
| #define PARCEL_READ(T, FUN) \ |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) { \ |
| FUZZ_LOG() << "about to read " #T " using " #FUN " with status"; \ |
| T t{}; \ |
| binder_status_t status = FUN(p.aParcel(), &t); \ |
| FUZZ_LOG() << #T " status: " << status /* << " value: " << t*/; \ |
| } |
| |
| // clang-format off |
| std::vector<ParcelRead<NdkParcelAdapter>> BINDER_NDK_PARCEL_READ_FUNCTIONS{ |
| // methods from binder_parcel.h |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& provider) { |
| // aborts on larger values |
| size_t pos = provider.ConsumeIntegralInRange<size_t>(0, INT32_MAX); |
| FUZZ_LOG() << "about to set data position to " << pos; |
| binder_status_t status = AParcel_setDataPosition(p.aParcel(), pos); |
| FUZZ_LOG() << "set data position: " << status; |
| }, |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) { |
| FUZZ_LOG() << "about to read status header"; |
| ndk::ScopedAStatus t; |
| binder_status_t status = AParcel_readStatusHeader(p.aParcel(), t.getR()); |
| FUZZ_LOG() << "read status header: " << status; |
| }, |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) { |
| FUZZ_LOG() << "about to getDataSize the parcel"; |
| AParcel_getDataSize(p.aParcel()); |
| FUZZ_LOG() << "getDataSize done"; |
| }, |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& provider) { |
| FUZZ_LOG() << "about to read a ParcelableHolder"; |
| ndk::AParcelableHolder ph {provider.ConsumeBool() ? ndk::STABILITY_LOCAL : ndk::STABILITY_VINTF}; |
| binder_status_t status = AParcel_readParcelable(p.aParcel(), &ph); |
| FUZZ_LOG() << "read the ParcelableHolder: " << status; |
| }, |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& provider) { |
| size_t offset = provider.ConsumeIntegral<size_t>(); |
| size_t pos = provider.ConsumeIntegral<size_t>(); |
| FUZZ_LOG() << "about to appendFrom " << pos; |
| // TODO: create random parcel |
| AParcel* parcel = AParcel_create(); |
| binder_status_t status = AParcel_appendFrom(p.aParcel(), parcel, offset, pos); |
| AParcel_delete(parcel); |
| FUZZ_LOG() << "appendFrom: " << status; |
| }, |
| |
| PARCEL_READ(int32_t, AParcel_readInt32), |
| PARCEL_READ(uint32_t, AParcel_readUint32), |
| PARCEL_READ(int64_t, AParcel_readInt64), |
| PARCEL_READ(uint64_t, AParcel_readUint64), |
| PARCEL_READ(float, AParcel_readFloat), |
| PARCEL_READ(double, AParcel_readDouble), |
| PARCEL_READ(bool, AParcel_readBool), |
| PARCEL_READ(char16_t, AParcel_readChar), |
| PARCEL_READ(int8_t, AParcel_readByte), |
| |
| // methods from binder_parcel_utils.h |
| PARCEL_READ(ndk::SpAIBinder, ndk::AParcel_readNullableStrongBinder), |
| PARCEL_READ(ndk::SpAIBinder, ndk::AParcel_readRequiredStrongBinder), |
| PARCEL_READ(ndk::ScopedFileDescriptor, ndk::AParcel_readNullableParcelFileDescriptor), |
| PARCEL_READ(ndk::ScopedFileDescriptor, ndk::AParcel_readRequiredParcelFileDescriptor), |
| PARCEL_READ(std::string, ndk::AParcel_readString), |
| PARCEL_READ(std::optional<std::string>, ndk::AParcel_readString), |
| |
| PARCEL_READ(std::vector<std::string>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<std::optional<std::string>>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<SomeParcelable>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<std::optional<SomeParcelable>>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<ndk::SpAIBinder>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<ndk::SpAIBinder>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<ndk::ScopedFileDescriptor>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<ndk::ScopedFileDescriptor>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<std::shared_ptr<ISomeInterface>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<std::shared_ptr<ISomeInterface>>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<int32_t>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<int32_t>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<uint32_t>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<uint32_t>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<int64_t>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<int64_t>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<uint64_t>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<uint64_t>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<float>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<float>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<double>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<double>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<bool>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<bool>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<char16_t>, ndk::AParcel_readVector), |
| PARCEL_READ(std::optional<std::vector<char16_t>>, ndk::AParcel_readVector), |
| PARCEL_READ(std::vector<int32_t>, ndk::AParcel_resizeVector), |
| PARCEL_READ(std::optional<std::vector<int32_t>>, ndk::AParcel_resizeVector), |
| |
| // methods for std::array<T,N> |
| #define COMMA , |
| PARCEL_READ(std::array<bool COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<uint8_t COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<char16_t COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<int32_t COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<int64_t COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<float COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<double COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<std::string COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<SomeParcelable COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<ndk::SpAIBinder COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<ndk::ScopedFileDescriptor COMMA 3>, ndk::AParcel_readData), |
| PARCEL_READ(std::array<std::shared_ptr<ISomeInterface> COMMA 3>, ndk::AParcel_readData), |
| #undef COMMA |
| |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) { |
| FUZZ_LOG() << "about to read parcel using readFromParcel for EmptyParcelable"; |
| aidl::parcelables::EmptyParcelable emptyParcelable; |
| binder_status_t status = emptyParcelable.readFromParcel(p.aParcel()); |
| FUZZ_LOG() << "status: " << status; |
| }, |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) { |
| FUZZ_LOG() << "about to read parcel using readFromParcel for SingleDataParcelable"; |
| aidl::parcelables::SingleDataParcelable singleDataParcelable; |
| binder_status_t status = singleDataParcelable.readFromParcel(p.aParcel()); |
| FUZZ_LOG() << "status: " << status; |
| }, |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& /*provider*/) { |
| FUZZ_LOG() << "about to read parcel using readFromParcel for GenericDataParcelable"; |
| aidl::parcelables::GenericDataParcelable genericDataParcelable; |
| binder_status_t status = genericDataParcelable.readFromParcel(p.aParcel()); |
| FUZZ_LOG() << "status: " << status; |
| std::string toString = genericDataParcelable.toString(); |
| FUZZ_LOG() << "toString() result: " << toString; |
| }, |
| [](const NdkParcelAdapter& p, FuzzedDataProvider& provider) { |
| FUZZ_LOG() << "about to marshal AParcel"; |
| size_t start = provider.ConsumeIntegral<size_t>(); |
| // limit 1MB to avoid OOM issues |
| size_t len = provider.ConsumeIntegralInRange<size_t>(0, 1000000); |
| uint8_t buffer[len]; |
| binder_status_t status = AParcel_marshal(p.aParcel(), buffer, start, len); |
| FUZZ_LOG() << "status: " << status; |
| }, |
| [](const NdkParcelAdapter& /*p*/, FuzzedDataProvider& provider) { |
| FUZZ_LOG() << "about to unmarshal AParcel"; |
| size_t len = provider.ConsumeIntegralInRange<size_t>(0, provider.remaining_bytes()); |
| std::vector<uint8_t> parcelData = provider.ConsumeBytes<uint8_t>(len); |
| const uint8_t* buffer = parcelData.data(); |
| const size_t bufferLen = parcelData.size(); |
| NdkParcelAdapter adapter; |
| binder_status_t status = AParcel_unmarshal(adapter.aParcel(), buffer, bufferLen); |
| FUZZ_LOG() << "status: " << status; |
| }, |
| |
| }; |
| // clang-format on |