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 "appmgrclientrest_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "app_mgr_client.h"
23 #undef private
24 #include "parcel.h"
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_TWO = 2;
35 constexpr int INPUT_THREE = 3;
36 constexpr size_t FOO_MAX_LEN = 1024;
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[INPUT_TWO] << OFFSET_TWO) |
46 ptr[INPUT_THREE];
47 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)48 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
49 {
50 AppMgrClient* appMgrClient = new AppMgrClient();
51 if (!appMgrClient) {
52 return false;
53 }
54 sptr<IAppStateCallback> callback;
55 appMgrClient->RegisterAppStateCallback(callback);
56 std::string bundleName(data, size);
57 int uid = static_cast<int>(GetU32Data(data));
58 appMgrClient->KillApplicationByUid(bundleName, uid);
59 sptr<IStartSpecifiedAbilityResponse> response;
60 appMgrClient->RegisterStartSpecifiedAbilityResponse(response);
61 appMgrClient->GetRemoteObject();
62 return true;
63 }
64 }
65
66 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)67 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
68 {
69 /* Run your code on data */
70 if (data == nullptr) {
71 std::cout << "invalid data" << std::endl;
72 return 0;
73 }
74
75 /* Validate the length of size */
76 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
77 return 0;
78 }
79
80 char* ch = static_cast<char*>(malloc(size + 1));
81 if (ch == nullptr) {
82 std::cout << "malloc failed." << std::endl;
83 return 0;
84 }
85
86 (void)memset_s(ch, size + 1, 0x00, size + 1);
87 if (memcpy_s(ch, size, data, size) != EOK) {
88 std::cout << "copy failed." << std::endl;
89 free(ch);
90 ch = nullptr;
91 return 0;
92 }
93
94 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
95 free(ch);
96 ch = nullptr;
97 return 0;
98 }
99
100