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 "abilitymanagerservicec_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 size_t FOO_MAX_LEN = 1024;
35 constexpr size_t U32_AT_SIZE = 4;
36 constexpr uint8_t ENABLE = 2;
37 }
38
GetU32Data(const char * ptr)39 uint32_t GetU32Data(const char* ptr)
40 {
41 // convert fuzz input data to an integer
42 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
43 }
44
GetFuzzAbilityToken()45 sptr<Token> GetFuzzAbilityToken()
46 {
47 sptr<Token> token = nullptr;
48 AbilityRequest abilityRequest;
49 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
50 abilityRequest.abilityInfo.name = "MainAbility";
51 abilityRequest.abilityInfo.type = AbilityType::DATA;
52 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
53 if (abilityRecord) {
54 token = abilityRecord->GetToken();
55 }
56 return token;
57 }
58
DoSomethingInterestingWithMyAPI(const char * data,size_t size)59 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
60 {
61 bool boolParam = *data % ENABLE;
62 int intParam = static_cast<int>(GetU32Data(data));
63 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
64 int64_t int64Param = static_cast<int64_t>(GetU32Data(data));
65 std::string stringParam(data, size);
66 Parcel wantParcel;
67 Want* want = nullptr;
68 if (wantParcel.WriteBuffer(data, size)) {
69 want = Want::Unmarshalling(wantParcel);
70 if (!want) {
71 return false;
72 }
73 }
74 sptr<IRemoteObject> token = GetFuzzAbilityToken();
75
76 // fuzz for AbilityManagerService
77 auto abilityms = std::make_shared<AbilityManagerService>();
78 abilityms->PauseOldConnectManager(int32Param);
79 abilityms->InitConnectManager(int32Param, boolParam);
80 abilityms->InitDataAbilityManager(int32Param, boolParam);
81 abilityms->InitPendWantManager(int32Param, boolParam);
82 abilityms->GetValidUserId(int32Param);
83 sptr<IAbilityController> abilityController;
84 abilityms->SetAbilityController(abilityController, boolParam);
85 abilityms->SendANRProcessID(intParam);
86 abilityms->IsRunningInStabilityTest();
87 abilityms->IsAbilityControllerStart(*want, stringParam);
88 abilityms->IsAbilityControllerForeground(stringParam);
89 AppExecFwk::ExtensionAbilityInfo extensionInfo;
90 AppExecFwk::AbilityInfo abilityInfo;
91 abilityms->InitAbilityInfoFromExtension(extensionInfo, abilityInfo);
92 abilityms->StartUserTest(*want, token);
93 abilityms->FinishUserTest(stringParam, int64Param, stringParam);
94
95 return true;
96 }
97 }
98
99 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)100 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
101 {
102 /* Run your code on data */
103 if (data == nullptr) {
104 return 0;
105 }
106
107 /* Validate the length of size */
108 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
109 return 0;
110 }
111
112 char* ch = (char*)malloc(size + 1);
113 if (ch == nullptr) {
114 std::cout << "malloc failed." << std::endl;
115 return 0;
116 }
117
118 (void)memset_s(ch, size + 1, 0x00, size + 1);
119 if (memcpy_s(ch, size, data, size) != EOK) {
120 std::cout << "copy failed." << std::endl;
121 free(ch);
122 ch = nullptr;
123 return 0;
124 }
125
126 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
127 free(ch);
128 ch = nullptr;
129 return 0;
130 }
131
132