1 /*
2 * Copyright (c) 2024 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
16 #include "bgtaskbackgroundrunningforinner_fuzzer.h"
17 #include "securec.h"
18
19 #include "background_task_mgr_service.h"
20 #include "ibackground_task_mgr_ipc_interface_code.h"
21
22 namespace OHOS {
23 namespace BackgroundTaskMgr {
24 const std::string BGTASK_SERVICE_NAME = "BgtaskMgrService";
25 constexpr int32_t U32_AT_SIZE = 4;
26 bool g_isOnstarted = false;
27 const std::u16string BACKGROUND_TASK_MGR_STUB_TOKEN = u"ohos.resourceschedule.IBackgroundTaskMgr";
28
DoSomethingInterestingWithMyAPI(const char * data,size_t size)29 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
30 {
31 MessageParcel datas;
32 datas.WriteInterfaceToken(BACKGROUND_TASK_MGR_STUB_TOKEN);
33 datas.WriteBuffer(data, size);
34 datas.RewindRead(0);
35 MessageParcel reply;
36 MessageOption option;
37 if (!g_isOnstarted) {
38 std::shared_ptr<AppExecFwk::EventRunner> runner_ {nullptr};
39 runner_ = AppExecFwk::EventRunner::Create(BGTASK_SERVICE_NAME);
40 BgContinuousTaskMgr::GetInstance()->Init(runner_);
41 g_isOnstarted = true;
42 }
43 uint32_t code =
44 static_cast<uint32_t>(BackgroundTaskMgrStubInterfaceCode::REQUEST_BACKGROUND_RUNNING_FOR_INNER);
45 DelayedSingleton<BackgroundTaskMgrService>::GetInstance()->OnRemoteRequest(
46 code, datas, reply, option);
47 return true;
48 }
49 } // BackgroundTaskMgr
50 } // OHOS
51
52 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)53 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
54 {
55 /* Run your code on data */
56 if (data == nullptr) {
57 return 0;
58 }
59
60 if (size < OHOS::BackgroundTaskMgr::U32_AT_SIZE) {
61 return 0;
62 }
63
64 char* ch = static_cast<char *>(malloc(size + 1));
65 if (ch == nullptr) {
66 return 0;
67 }
68
69 (void)memset_s(ch, size + 1, 0x00, size + 1);
70 if (memcpy_s(ch, size + 1, data, size) != EOK) {
71 free(ch);
72 ch = nullptr;
73 return 0;
74 }
75
76 OHOS::BackgroundTaskMgr::DoSomethingInterestingWithMyAPI(ch, size);
77 free(ch);
78 ch = nullptr;
79 return 0;
80 }
81