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 FOO_MAX_LEN = 1024;
39 constexpr size_t U32_AT_SIZE = 4;
40 constexpr size_t OFFSET_ZERO = 24;
41 constexpr size_t OFFSET_ONE = 16;
42 constexpr size_t OFFSET_TWO = 8;
43 }
44
GetU32Data(const char * ptr)45 uint32_t GetU32Data(const char* ptr)
46 {
47 // convert fuzz input data to an integer
48 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
49 ptr[INPUT_THREE];
50 }
51
DoSomethingInterestingWithMyAPI(const char * data,size_t size)52 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
53 {
54 int intParam = static_cast<int>(GetU32Data(data));
55 std::string stringParam(data, size);
56 Parcel wantParcel;
57 Want* want = nullptr;
58 if (wantParcel.WriteBuffer(data, size)) {
59 want = Want::Unmarshalling(wantParcel);
60 if (!want) {
61 return false;
62 }
63 }
64
65 // fuzz for AbilityManagerService
66 auto abilityms = std::make_shared<AbilityManagerService>();
67 AppExecFwk::AbilityInfo abilityInfo;
68 abilityms->JudgeAbilityVisibleControl(abilityInfo);
69 sptr<IUserCallback> callback;
70 abilityms->StartUser(intParam, callback);
71 abilityms->StopUser(intParam, callback);
72 abilityms->OnAcceptWantResponse(*want, stringParam);
73 abilityms->OnStartSpecifiedAbilityTimeoutResponse(*want);
74 if (want) {
75 delete want;
76 want = nullptr;
77 }
78 return true;
79 }
80 }
81
82 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)83 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
84 {
85 /* Run your code on data */
86 if (data == nullptr) {
87 return 0;
88 }
89
90 /* Validate the length of size */
91 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
92 return 0;
93 }
94
95 char* ch = static_cast<char*>(malloc(size + 1));
96 if (ch == nullptr) {
97 std::cout << "malloc failed." << std::endl;
98 return 0;
99 }
100
101 (void)memset_s(ch, size + 1, 0x00, size + 1);
102 if (memcpy_s(ch, size, data, size) != EOK) {
103 std::cout << "copy failed." << std::endl;
104 free(ch);
105 ch = nullptr;
106 return 0;
107 }
108
109 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
110 free(ch);
111 ch = nullptr;
112 return 0;
113 }
114
115