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 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 class MyAbilityConnection : public IAbilityConnection {
44 public:
45 MyAbilityConnection() = default;
46 virtual ~MyAbilityConnection() = default;
OnAbilityConnectDone(const AppExecFwk::ElementName & element,const sptr<IRemoteObject> & remoteObject,int resultCode)47 void OnAbilityConnectDone(
48 const AppExecFwk::ElementName& element, const sptr<IRemoteObject>& remoteObject, int resultCode) override
49 {}
OnAbilityDisconnectDone(const AppExecFwk::ElementName & element,int resultCode)50 void OnAbilityDisconnectDone(const AppExecFwk::ElementName& element, int resultCode) override
51 {}
AsObject()52 sptr<IRemoteObject> AsObject() override
53 {
54 return {};
55 }
56 };
57 }
58
GetU32Data(const char * ptr)59 uint32_t GetU32Data(const char* ptr)
60 {
61 // convert fuzz input data to an integer
62 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
63 ptr[INPUT_THREE];
64 }
65
GetFuzzAbilityToken()66 sptr<Token> GetFuzzAbilityToken()
67 {
68 sptr<Token> token = nullptr;
69 AbilityRequest abilityRequest;
70 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
71 abilityRequest.abilityInfo.name = "MainAbility";
72 abilityRequest.abilityInfo.type = AbilityType::DATA;
73 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
74 if (abilityRecord) {
75 token = abilityRecord->GetToken();
76 }
77 return token;
78 }
79
DoSomethingInterestingWithMyAPI(const char * data,size_t size)80 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
81 {
82 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
83 Parcel wantParcel;
84 Want* want = nullptr;
85 if (wantParcel.WriteBuffer(data, size)) {
86 want = Want::Unmarshalling(wantParcel);
87 if (!want) {
88 return false;
89 }
90 }
91 sptr<IRemoteObject> token = GetFuzzAbilityToken();
92 sptr<IAbilityConnection> connect = new MyAbilityConnection();
93
94 // fuzz for AbilityManagerService
95 auto abilityms = std::make_shared<AbilityManagerService>();
96 abilityms->GetDataAbilityManagerByToken(token);
97 abilityms->ConnectBmsService();
98 sptr<IWantSender> target;
99 std::shared_ptr<WantSenderInfo> wantSenderInfo;
100 abilityms->GetWantSenderInfo(target, wantSenderInfo);
101 abilityms->GetAppMemorySize();
102 abilityms->IsRamConstrainedDevice();
103 AmsConfigurationParameter::GetInstance().GetMissionSaveTime();
104 abilityms->GetMissionIdByAbilityToken(token);
105 abilityms->GetAbilityTokenByMissionId(int32Param);
106 abilityms->StartRemoteAbilityByCall(*want, token, token);
107 AppExecFwk::ElementName element;
108 abilityms->ReleaseRemoteAbility(token, element);
109 abilityms->StartAbilityByCall(*want, connect, token);
110 abilityms->ReleaseCall(connect, element);
111
112 return true;
113 }
114 }
115
116 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)117 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
118 {
119 /* Run your code on data */
120 if (data == nullptr) {
121 return 0;
122 }
123
124 /* Validate the length of size */
125 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
126 return 0;
127 }
128
129 char* ch = static_cast<char*>(malloc(size + 1));
130 if (ch == nullptr) {
131 std::cout << "malloc failed." << std::endl;
132 return 0;
133 }
134
135 (void)memset_s(ch, size + 1, 0x00, size + 1);
136 if (memcpy_s(ch, size, data, size) != EOK) {
137 std::cout << "copy failed." << std::endl;
138 free(ch);
139 ch = nullptr;
140 return 0;
141 }
142
143 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
144 free(ch);
145 ch = nullptr;
146 return 0;
147 }
148
149