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 "abilitymanagerservicefifth_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 #define DISABLE_FUZZ
33 namespace OHOS {
34 namespace {
35 constexpr int INPUT_ZERO = 0;
36 constexpr int INPUT_ONE = 1;
37 constexpr int INPUT_TWO = 2;
38 constexpr int INPUT_THREE = 3;
39 constexpr size_t FOO_MAX_LEN = 1024;
40 constexpr size_t U32_AT_SIZE = 4;
41 constexpr int OFFSET_ZERO = 24;
42 constexpr int OFFSET_ONE = 16;
43 constexpr int OFFSET_TWO = 8;
44 }
45
GetU32Data(const char * ptr)46 uint32_t GetU32Data(const char* ptr)
47 {
48 // convert fuzz input data to an integer
49 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
50 ptr[INPUT_THREE];
51 }
52
GetFuzzAbilityToken()53 sptr<Token> GetFuzzAbilityToken()
54 {
55 sptr<Token> token = nullptr;
56 AbilityRequest abilityRequest;
57 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
58 abilityRequest.abilityInfo.name = "MainAbility";
59 abilityRequest.abilityInfo.type = AbilityType::DATA;
60 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
61 if (abilityRecord) {
62 token = abilityRecord->GetToken();
63 }
64 return token;
65 }
66
DoSomethingInterestingWithMyAPI(const char * data,size_t size)67 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
68 {
69 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
70 uint32_t uint32Param = GetU32Data(data);
71 std::string stringParam(data, size);
72 Parcel wantParcel;
73 Want* want = nullptr;
74 if (wantParcel.WriteBuffer(data, size)) {
75 want = Want::Unmarshalling(wantParcel);
76 if (!want) {
77 return false;
78 }
79 }
80 sptr<IRemoteObject> token = GetFuzzAbilityToken();
81
82 // fuzz for AbilityManagerService
83 auto abilityms = std::make_shared<AbilityManagerService>();
84 abilityms->GetTopAbility(token);
85 abilityms->DelegatorDoAbilityForeground(token);
86 abilityms->DelegatorDoAbilityBackground(token);
87 abilityms->DoAbilityForeground(token, uint32Param);
88 abilityms->DoAbilityBackground(token, uint32Param);
89 abilityms->DelegatorMoveMissionToFront(int32Param);
90 abilityms->UpdateCallerInfo(*want, token);
91 abilityms->JudgeMultiUserConcurrency(int32Param);
92 #ifdef ABILITY_COMMAND_FOR_TEST
93 abilityms->ForceTimeoutForTest(stringParam, stringParam);
94 #endif
95 AppExecFwk::AbilityInfo abilityInfo;
96 abilityms->CheckStaticCfgPermission(abilityInfo, false, -1);
97
98 return true;
99 }
100 }
101
102 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)103 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
104 {
105 /* Run your code on data */
106 if (data == nullptr) {
107 return 0;
108 }
109
110 /* Validate the length of size */
111 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
112 return 0;
113 }
114
115 char* ch = (char*)malloc(size + 1);
116 if (ch == nullptr) {
117 std::cout << "malloc failed." << std::endl;
118 return 0;
119 }
120
121 (void)memset_s(ch, size + 1, 0x00, size + 1);
122 if (memcpy_s(ch, size, data, size) != EOK) {
123 std::cout << "copy failed." << std::endl;
124 free(ch);
125 ch = nullptr;
126 return 0;
127 }
128
129 #ifndef DISABLE_FUZZ
130 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
131 #endif
132 free(ch);
133 ch = nullptr;
134 return 0;
135 }
136
137