1 /* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #include "medialibrary_mtp_headerdata_fuzzer.h" 16 17 #include <cstdint> 18 #include <string> 19 #include <vector> 20 #include <fuzzer/FuzzedDataProvider.h> 21 22 #include "system_ability_definition.h" 23 #include "iservice_registry.h" 24 #include "userfilemgr_uri.h" 25 #include "payload_data.h" 26 #include "close_session_data.h" 27 #include "media_log.h" 28 29 #define private public 30 #include "header_data.h" 31 #undef private 32 33 namespace OHOS { 34 using namespace std; 35 using namespace Media; 36 static const int32_t NUM_BYTES = 1; 37 FuzzedDataProvider *provider = nullptr; 38 HeaderDataTest()39static void HeaderDataTest() 40 { 41 shared_ptr<MtpOperationContext> context = make_shared<MtpOperationContext>(); 42 if (context == nullptr) { 43 MEDIA_ERR_LOG("context is nullptr"); 44 return; 45 } 46 shared_ptr<HeaderData> headerData = make_shared<HeaderData>(context); 47 48 vector<uint8_t> buffer = provider->ConsumeBytes<uint8_t>(NUM_BYTES); 49 int32_t readSize = buffer.size(); 50 51 headerData->Parser(buffer, readSize); 52 headerData->Maker(buffer); 53 headerData->SetCode(provider->ConsumeIntegral<uint16_t>()); 54 headerData->SetContainerLength(provider->ConsumeIntegral<uint32_t>()); 55 headerData->SetContainerType(provider->ConsumeIntegral<uint16_t>()); 56 headerData->SetTransactionId(provider->ConsumeIntegral<uint32_t>()); 57 58 headerData->GetCode(); 59 headerData->GetContainerLength(); 60 headerData->GetContainerType(); 61 headerData->GetTransactionId(); 62 63 headerData->Reset(); 64 } 65 } // namespace OHOS 66 67 /* Fuzzer entry point */ LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)68extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) 69 { 70 /* Run your code on data */ 71 FuzzedDataProvider fdp(data, size); 72 OHOS::provider = &fdp; 73 if (data == nullptr) { 74 return 0; 75 } 76 OHOS::HeaderDataTest(); 77 return 0; 78 }