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 "bgtasksystemeventobserver_fuzzer.h"
17 #include "securec.h"
18
19 #include "background_task_mgr_service.h"
20 #include "common_event_data.h"
21 #include "event_info.h"
22 #include "event_handler.h"
23 #include "event_runner.h"
24 #include "system_event_observer.h"
25
26
27 namespace OHOS {
28 namespace BackgroundTaskMgr {
29 constexpr int32_t U32_AT_SIZE = 4;
30
DoSomethingInterestingWithMyAPI(const char * data,size_t size)31 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
32 {
33 EventFwk::MatchingSkills matchingSkills;
34 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_ADDED);
35 EventFwk::CommonEventSubscribeInfo commonEventSubscribeInfo(matchingSkills);
36 auto systemEventListener = std::make_shared<SystemEventObserver>(commonEventSubscribeInfo);
37 systemEventListener->Subscribe();
38 systemEventListener->Unsubscribe();
39
40 EventFwk::CommonEventData eventData = EventFwk::CommonEventData();
41 systemEventListener->OnReceiveEvent(eventData);
42
43 auto handler = std::make_shared<OHOS::AppExecFwk::EventHandler>(nullptr);
44 systemEventListener->SetEventHandler(handler);
45 systemEventListener->OnReceiveEventContinuousTask(eventData);
46 auto bgContinuousTaskMgr = std::make_shared<BgContinuousTaskMgr>();
47 systemEventListener->SetBgContinuousTaskMgr(bgContinuousTaskMgr);
48 systemEventListener->OnReceiveEventContinuousTask(eventData);
49 AAFwk::Want want = AAFwk::Want();
50 want.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_USER_SWITCHED);
51 eventData.SetWant(want);
52 systemEventListener->OnReceiveEventContinuousTask(eventData);
53 want.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_USER_ADDED);
54 eventData.SetWant(want);
55 systemEventListener->OnReceiveEventContinuousTask(eventData);
56 want.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_USER_REMOVED);
57 eventData.SetWant(want);
58 systemEventListener->OnReceiveEventContinuousTask(eventData);
59
60 EventFwk::CommonEventData eventData2 = EventFwk::CommonEventData();
61 AAFwk::Want want2 = AAFwk::Want();
62 want2.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_REMOVED);
63 eventData2.SetWant(want2);
64 systemEventListener->OnReceiveEventEfficiencyRes(eventData2);
65 return true;
66 }
67 } // BackgroundTaskMgr
68 } // OHOS
69
70 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)71 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
72 {
73 /* Run your code on data */
74 if (data == nullptr) {
75 return 0;
76 }
77
78 if (size < OHOS::BackgroundTaskMgr::U32_AT_SIZE) {
79 return 0;
80 }
81
82 char* ch = static_cast<char *>(malloc(size + 1));
83 if (ch == nullptr) {
84 return 0;
85 }
86
87 (void)memset_s(ch, size + 1, 0x00, size + 1);
88 if (memcpy_s(ch, size + 1, data, size) != EOK) {
89 free(ch);
90 ch = nullptr;
91 return 0;
92 }
93
94 OHOS::BackgroundTaskMgr::DoSomethingInterestingWithMyAPI(ch, size);
95 free(ch);
96 ch = nullptr;
97 return 0;
98 }
99