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 size_t FOO_MAX_LEN = 1024;
35 constexpr size_t U32_AT_SIZE = 4;
36 class MyAbilityConnection : public IAbilityConnection {
37 public:
38 MyAbilityConnection() = default;
39 virtual ~MyAbilityConnection() = default;
OnAbilityConnectDone(const AppExecFwk::ElementName & element,const sptr<IRemoteObject> & remoteObject,int resultCode)40 void OnAbilityConnectDone(
41 const AppExecFwk::ElementName& element, const sptr<IRemoteObject>& remoteObject, int resultCode) override
42 {}
OnAbilityDisconnectDone(const AppExecFwk::ElementName & element,int resultCode)43 void OnAbilityDisconnectDone(const AppExecFwk::ElementName& element, int resultCode) override
44 {}
AsObject()45 sptr<IRemoteObject> AsObject() override
46 {
47 return {};
48 }
49 };
50 }
51
GetU32Data(const char * ptr)52 uint32_t GetU32Data(const char* ptr)
53 {
54 // convert fuzz input data to an integer
55 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
56 }
57
GetFuzzAbilityToken()58 sptr<Token> GetFuzzAbilityToken()
59 {
60 sptr<Token> token = nullptr;
61 AbilityRequest abilityRequest;
62 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
63 abilityRequest.abilityInfo.name = "MainAbility";
64 abilityRequest.abilityInfo.type = AbilityType::DATA;
65 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
66 if (abilityRecord) {
67 token = abilityRecord->GetToken();
68 }
69 return token;
70 }
71
DoSomethingInterestingWithMyAPI(const char * data,size_t size)72 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
73 {
74 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
75 Parcel wantParcel;
76 Want* want = nullptr;
77 if (wantParcel.WriteBuffer(data, size)) {
78 want = Want::Unmarshalling(wantParcel);
79 if (!want) {
80 return false;
81 }
82 }
83 sptr<IRemoteObject> token = GetFuzzAbilityToken();
84 sptr<IAbilityConnection> connect = new MyAbilityConnection();
85
86 // fuzz for AbilityManagerService
87 auto abilityms = std::make_shared<AbilityManagerService>();
88 abilityms->GetDataAbilityManagerByToken(token);
89 abilityms->ConnectBmsService();
90 sptr<IWantSender> target;
91 std::shared_ptr<WantSenderInfo> wantSenderInfo;
92 abilityms->GetWantSenderInfo(target, wantSenderInfo);
93 abilityms->GetAppMemorySize();
94 abilityms->IsRamConstrainedDevice();
95 AmsConfigurationParameter::GetInstance().GetMissionSaveTime();
96 abilityms->GetMissionIdByAbilityToken(token);
97 abilityms->GetAbilityTokenByMissionId(int32Param);
98 abilityms->StartRemoteAbilityByCall(*want, token, token);
99 AppExecFwk::ElementName element;
100 abilityms->ReleaseRemoteAbility(token, element);
101 abilityms->StartAbilityByCall(*want, connect, token);
102 abilityms->ReleaseCall(connect, element);
103
104 return true;
105 }
106 }
107
108 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)109 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
110 {
111 /* Run your code on data */
112 if (data == nullptr) {
113 return 0;
114 }
115
116 /* Validate the length of size */
117 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
118 return 0;
119 }
120
121 char* ch = (char*)malloc(size + 1);
122 if (ch == nullptr) {
123 std::cout << "malloc failed." << std::endl;
124 return 0;
125 }
126
127 (void)memset_s(ch, size + 1, 0x00, size + 1);
128 if (memcpy_s(ch, size, data, size) != EOK) {
129 std::cout << "copy failed." << std::endl;
130 free(ch);
131 ch = nullptr;
132 return 0;
133 }
134
135 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
136 free(ch);
137 ch = nullptr;
138 return 0;
139 }
140
141