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 "abilitymanagereventsubscriber_fuzzer.h"
17
18 #include <iostream>
19 #include <cstddef>
20 #include <cstdint>
21
22 #define private public
23 #include "ability_manager_event_subscriber.h"
24 #undef private
25 #include "securec.h"
26
27 using namespace OHOS::AAFwk;
28 using namespace OHOS::AppExecFwk;
29
30 namespace OHOS {
31 namespace {
32 constexpr int INPUT_ZERO = 0;
33 constexpr int INPUT_ONE = 1;
34 constexpr int INPUT_THREE = 3;
35 constexpr size_t FOO_MAX_LEN = 1024;
36 constexpr uint8_t ENABLE = 2;
37 constexpr size_t U32_AT_SIZE = 4;
38 constexpr size_t OFFSET_ZERO = 24;
39 constexpr size_t OFFSET_ONE = 16;
40 constexpr size_t OFFSET_TWO = 8;
41 }
GetU32Data(const char * ptr)42 uint32_t GetU32Data(const char* ptr)
43 {
44 // convert fuzz input data to an integer
45 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
46 ptr[INPUT_THREE];
47 }
48
DoSomethingInterestingWithMyAPI(const char * data,size_t size)49 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
50 {
51 EventFwk::CommonEventData eventData;
52 EventFwk::CommonEventSubscribeInfo subscribeInfo;
53 std::function<void()> callback;
54 std::function<void()> userScreenUnlockCallback;
55 auto abilityManagerEventSubscriber = std::make_shared<AbilityRuntime::AbilityManagerEventSubscriber>
56 (subscribeInfo, callback, userScreenUnlockCallback);
57 abilityManagerEventSubscriber->OnReceiveEvent(eventData);
58
59 return true;
60 }
61 }
62
63 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)64 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
65 {
66 /* Run your code on data */
67 if (data == nullptr) {
68 std::cout << "invalid data" << std::endl;
69 return 0;
70 }
71
72 /* Validate the length of size */
73 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
74 return 0;
75 }
76
77 char* ch = (char*)malloc(size + 1);
78 if (ch == nullptr) {
79 std::cout << "malloc failed." << std::endl;
80 return 0;
81 }
82
83 (void)memset_s(ch, size + 1, 0x00, size + 1);
84 if (memcpy_s(ch, size + 1, data, size) != EOK) {
85 std::cout << "copy failed." << std::endl;
86 free(ch);
87 ch = nullptr;
88 return 0;
89 }
90
91 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
92 free(ch);
93 ch = nullptr;
94 return 0;
95 }
96
97