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