1 /*
2 * Copyright (c) 2022 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 "publishcommoneventasuser_fuzzer.h"
17 #include "common_event_manager.h"
18 #include "common_event_support.h"
19 #include "fuzz_common_base.h"
20 #include <string>
21 #include <vector>
22
23 constexpr int8_t FUZZ_DATA_LEN = 4;
24
25 namespace OHOS {
26 constexpr size_t U32_AT_SIZE = 4;
27
DoSomethingInterestingWithMyAPI(FuzzData fuzzData)28 bool DoSomethingInterestingWithMyAPI(FuzzData fuzzData)
29 {
30 AAFwk::Want want;
31 want.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_TEST_ACTION1);
32 EventFwk::CommonEventData commonEventData;
33 commonEventData.SetWant(want);
34 int32_t code = fuzzData.GenerateRandomInt32();
35 commonEventData.SetCode(code);
36 std::string stringData = fuzzData.GenerateRandomString();
37 commonEventData.SetData(stringData);
38
39 EventFwk::CommonEventPublishInfo commonEventPublishInfo;
40 std::vector<std::string> permissions;
41 permissions.emplace_back(stringData);
42 commonEventPublishInfo.SetSubscriberPermissions(permissions);
43
44 std::shared_ptr<EventFwk::CommonEventSubscriber> subscriber = nullptr;
45
46 int32_t userId = code + 100;
47
48 // test PublishCommonEventAsUser and two paramter
49 EventFwk::CommonEventManager::PublishCommonEventAsUser(commonEventData, userId);
50
51 if (fuzzData.GetSize() < FUZZ_DATA_LEN) {
52 EventFwk::CommonEventManager::PublishCommonEventAsUser(
53 commonEventData, commonEventPublishInfo, subscriber, userId);
54 EventFwk::CommonEventManager::NewPublishCommonEventAsUser(
55 commonEventData, commonEventPublishInfo, userId);
56 EventFwk::CommonEventManager::NewPublishCommonEventAsUser(
57 commonEventData, commonEventPublishInfo, subscriber, userId);
58 } else {
59 int32_t uid = fuzzData.GenerateRandomInt32();
60 EventFwk::CommonEventManager::PublishCommonEventAsUser(
61 commonEventData, commonEventPublishInfo, subscriber, uid, code, userId);
62 }
63 return true;
64 }
65 }
66
67 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)68 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
69 {
70 /* Run your code on data */
71 if (data == nullptr) {
72 return 0;
73 }
74
75 if (size < OHOS::U32_AT_SIZE) {
76 return 0;
77 }
78 std::vector<std::string> permissions;
79 NativeTokenGet(permissions);
80 OHOS::FuzzData fuzzData(data, size);
81 OHOS::DoSomethingInterestingWithMyAPI(fuzzData);
82 return 0;
83 }
84