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 "abilitymanagerserviceseventh_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 class MyAbilityConnection : public IAbilityConnection {
43 public:
44 MyAbilityConnection() = default;
45 virtual ~MyAbilityConnection() = default;
OnAbilityConnectDone(const AppExecFwk::ElementName & element,const sptr<IRemoteObject> & remoteObject,int resultCode)46 void OnAbilityConnectDone(
47 const AppExecFwk::ElementName& element, const sptr<IRemoteObject>& remoteObject, int resultCode) override
48 {}
OnAbilityDisconnectDone(const AppExecFwk::ElementName & element,int resultCode)49 void OnAbilityDisconnectDone(const AppExecFwk::ElementName& element, int resultCode) override
50 {}
AsObject()51 sptr<IRemoteObject> AsObject() override
52 {
53 return {};
54 }
55 };
56 }
57
GetU32Data(const char * ptr)58 uint32_t GetU32Data(const char* ptr)
59 {
60 // convert fuzz input data to an integer
61 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
62 ptr[INPUT_THREE];
63 }
64
GetFuzzAbilityToken()65 sptr<Token> GetFuzzAbilityToken()
66 {
67 sptr<Token> token = nullptr;
68 AbilityRequest abilityRequest;
69 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
70 abilityRequest.abilityInfo.name = "MainAbility";
71 abilityRequest.abilityInfo.type = AbilityType::DATA;
72 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
73 if (abilityRecord) {
74 token = abilityRecord->GetToken();
75 }
76 return token;
77 }
78
DoSomethingInterestingWithMyAPI(const char * data,size_t size)79 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
80 {
81 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
82 Parcel wantParcel;
83 Want* want = nullptr;
84 if (wantParcel.WriteBuffer(data, size)) {
85 want = Want::Unmarshalling(wantParcel);
86 if (!want) {
87 return false;
88 }
89 }
90 sptr<IRemoteObject> token = GetFuzzAbilityToken();
91 sptr<IAbilityConnection> connect = new MyAbilityConnection();
92
93 // fuzz for AbilityManagerService
94 auto abilityms = std::make_shared<AbilityManagerService>();
95 abilityms->GetDataAbilityManagerByToken(token);
96 abilityms->ConnectServices();
97 sptr<IWantSender> target;
98 std::shared_ptr<WantSenderInfo> wantSenderInfo;
99 abilityms->GetWantSenderInfo(target, wantSenderInfo);
100 abilityms->GetAppMemorySize();
101 abilityms->IsRamConstrainedDevice();
102 AmsConfigurationParameter::GetInstance().GetMissionSaveTime();
103 abilityms->GetMissionIdByAbilityToken(token);
104 abilityms->GetAbilityTokenByMissionId(int32Param);
105 abilityms->StartRemoteAbilityByCall(*want, token, token);
106 AppExecFwk::ElementName element;
107 abilityms->ReleaseRemoteAbility(token, element);
108 abilityms->StartAbilityByCall(*want, connect, token);
109 abilityms->ReleaseCall(connect, element);
110
111 return true;
112 }
113 }
114
115 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)116 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
117 {
118 /* Run your code on data */
119 if (data == nullptr) {
120 return 0;
121 }
122
123 /* Validate the length of size */
124 if (size < OHOS::U32_AT_SIZE) {
125 return 0;
126 }
127
128 char* ch = static_cast<char*>(malloc(size + 1));
129 if (ch == nullptr) {
130 std::cout << "malloc failed." << std::endl;
131 return 0;
132 }
133
134 (void)memset_s(ch, size + 1, 0x00, size + 1);
135 if (memcpy_s(ch, size, data, size) != EOK) {
136 std::cout << "copy failed." << std::endl;
137 free(ch);
138 ch = nullptr;
139 return 0;
140 }
141
142 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
143 free(ch);
144 ch = nullptr;
145 return 0;
146 }
147
148