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 #include "systemabilityhelper_fuzzer.h"
16
17 #include <iostream>
18
19 #include "securec.h"
20 #include "system_ability_helper.h"
21
22 using namespace OHOS::AppExecFwk;
23 namespace OHOS {
24 constexpr size_t FOO_MAX_LEN = 1024;
25 constexpr size_t U32_AT_SIZE = 4;
26 constexpr uint8_t ENABLE = 2;
DoSomethingInterestingWithMyAPI(const char * data,size_t size)27 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
28 {
29 SystemAbilityHelper helper;
30 int32_t systemAbilityId = reinterpret_cast<uintptr_t>(data);
31 helper.GetSystemAbility(systemAbilityId);
32 helper.RemoveSystemAbility(systemAbilityId);
33 sptr<IRemoteObject> systemAbility;
34 helper.AddSystemAbility(systemAbilityId, systemAbility);
35 std::string bundleName(data, size);
36 int32_t uid = reinterpret_cast<uintptr_t>(data);
37 helper.UninstallApp(bundleName, uid, systemAbilityId);
38 helper.UpgradeApp(bundleName, uid, systemAbilityId);
39 helper.UnloadSystemAbility(systemAbilityId);
40 return true;
41 }
42 } // namespace OHOS
43
44 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)45 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
46 {
47 /* Run your code on data */
48 if (data == nullptr) {
49 return 0;
50 }
51
52 /* Validate the length of size */
53 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
54 return 0;
55 }
56
57 char* ch = (char*)malloc(size + 1);
58 if (ch == nullptr) {
59 std::cout << "malloc failed." << std::endl;
60 return 0;
61 }
62
63 (void)memset_s(ch, size + 1, 0x00, size + 1);
64 if (memcpy_s(ch, size + 1, data, size) != EOK) {
65 std::cout << "copy failed." << std::endl;
66 free(ch);
67 ch = nullptr;
68 return 0;
69 }
70
71 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
72 free(ch);
73 ch = nullptr;
74 return 0;
75 }