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 U32_AT_SIZE = 4;
40 constexpr int OFFSET_ZERO = 24;
41 constexpr int OFFSET_ONE = 16;
42 constexpr int 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
GetFuzzAbilityToken()52 sptr<Token> GetFuzzAbilityToken()
53 {
54 sptr<Token> token = nullptr;
55 AbilityRequest abilityRequest;
56 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
57 abilityRequest.abilityInfo.name = "MainAbility";
58 abilityRequest.abilityInfo.type = AbilityType::DATA;
59 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
60 if (abilityRecord) {
61 token = abilityRecord->GetToken();
62 }
63 return token;
64 }
65
DoSomethingInterestingWithMyAPI(const char * data,size_t size)66 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
67 {
68 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
69 uint32_t uint32Param = GetU32Data(data);
70 std::string stringParam(data, size);
71 Parcel wantParcel;
72 Want* want = nullptr;
73 if (wantParcel.WriteBuffer(data, size)) {
74 want = Want::Unmarshalling(wantParcel);
75 if (!want) {
76 return false;
77 }
78 }
79 sptr<IRemoteObject> token = GetFuzzAbilityToken();
80
81 // fuzz for AbilityManagerService
82 auto abilityms = std::make_shared<AbilityManagerService>();
83 abilityms->GetTopAbility(token);
84 abilityms->DelegatorDoAbilityForeground(token);
85 abilityms->DelegatorDoAbilityBackground(token);
86 abilityms->DoAbilityForeground(token, uint32Param);
87 abilityms->DoAbilityBackground(token, uint32Param);
88 abilityms->DelegatorMoveMissionToFront(int32Param);
89 abilityms->OpenLink(*want, token, int32Param, int32Param);
90 abilityms->JudgeMultiUserConcurrency(int32Param);
91 #ifdef ABILITY_COMMAND_FOR_TEST
92 abilityms->ForceTimeoutForTest(stringParam, stringParam);
93 #endif
94 AppExecFwk::AbilityRequest abilityRequest;
95 abilityms->CheckStaticCfgPermission(abilityRequest, false, -1);
96 if (want) {
97 delete want;
98 want = nullptr;
99 }
100 return true;
101 }
102 }
103
104 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)105 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
106 {
107 /* Run your code on data */
108 if (data == nullptr) {
109 return 0;
110 }
111
112 /* Validate the length of size */
113 if (size < OHOS::U32_AT_SIZE) {
114 return 0;
115 }
116
117 char* ch = static_cast<char*>(malloc(size + 1));
118 if (ch == nullptr) {
119 std::cout << "malloc failed." << std::endl;
120 return 0;
121 }
122
123 (void)memset_s(ch, size + 1, 0x00, size + 1);
124 if (memcpy_s(ch, size, data, size) != EOK) {
125 std::cout << "copy failed." << std::endl;
126 free(ch);
127 ch = nullptr;
128 return 0;
129 }
130
131 #ifndef DISABLE_FUZZ
132 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
133 #endif
134 free(ch);
135 ch = nullptr;
136 return 0;
137 }
138
139