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 "abilitymanagerservicefourth_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "ability_manager_service.h"
24 #undef protected
25 #undef private
26
27 #include "ability_record.h"
28
29 using namespace OHOS::AAFwk;
30 using namespace OHOS::AppExecFwk;
31
32 namespace OHOS {
33 namespace {
34 constexpr int INPUT_ZERO = 0;
35 constexpr int INPUT_ONE = 1;
36 constexpr int INPUT_TWO = 2;
37 constexpr int INPUT_THREE = 3;
38 constexpr size_t U32_AT_SIZE = 4;
39 constexpr size_t OFFSET_ZERO = 24;
40 constexpr size_t OFFSET_ONE = 16;
41 constexpr size_t OFFSET_TWO = 8;
42 }
43
GetU32Data(const char * ptr)44 uint32_t GetU32Data(const char* ptr)
45 {
46 // convert fuzz input data to an integer
47 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
48 ptr[INPUT_THREE];
49 }
50
DoSomethingInterestingWithMyAPI(const char * data,size_t size)51 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
52 {
53 int intParam = static_cast<int>(GetU32Data(data));
54 std::string stringParam(data, size);
55 Parcel wantParcel;
56 Want* want = nullptr;
57 if (wantParcel.WriteBuffer(data, size)) {
58 want = Want::Unmarshalling(wantParcel);
59 if (!want) {
60 return false;
61 }
62 }
63
64 // fuzz for AbilityManagerService
65 auto abilityms = std::make_shared<AbilityManagerService>();
66 AppExecFwk::AbilityInfo abilityInfo;
67 abilityms->JudgeAbilityVisibleControl(abilityInfo);
68 sptr<IUserCallback> callback;
69 abilityms->StartUser(intParam, callback);
70 abilityms->StopUser(intParam, callback);
71 abilityms->OnAcceptWantResponse(*want, stringParam, 0);
72 abilityms->OnStartSpecifiedAbilityTimeoutResponse(0);
73 if (want) {
74 delete want;
75 want = nullptr;
76 }
77 return true;
78 }
79 }
80
81 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)82 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
83 {
84 /* Run your code on data */
85 if (data == nullptr) {
86 return 0;
87 }
88
89 /* Validate the length of size */
90 if (size < OHOS::U32_AT_SIZE) {
91 return 0;
92 }
93
94 char* ch = static_cast<char*>(malloc(size + 1));
95 if (ch == nullptr) {
96 std::cout << "malloc failed." << std::endl;
97 return 0;
98 }
99
100 (void)memset_s(ch, size + 1, 0x00, size + 1);
101 if (memcpy_s(ch, size, data, size) != EOK) {
102 std::cout << "copy failed." << std::endl;
103 free(ch);
104 ch = nullptr;
105 return 0;
106 }
107
108 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
109 free(ch);
110 ch = nullptr;
111 return 0;
112 }
113
114