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 "amsmgrscheduler_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "ams_mgr_scheduler.h"
23 #undef private
24 #include "ability_record.h"
25 #include "parcel.h"
26 #include "securec.h"
27
28 using namespace OHOS::AAFwk;
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
32 namespace {
33 constexpr int INPUT_ZERO = 0;
34 constexpr int INPUT_ONE = 1;
35 constexpr int INPUT_THREE = 3;
36 constexpr size_t FOO_MAX_LEN = 1024;
37 constexpr size_t U32_AT_SIZE = 4;
38 constexpr uint8_t ENABLE = 2;
39 constexpr size_t OFFSET_ZERO = 24;
40 constexpr size_t OFFSET_ONE = 16;
41 constexpr size_t OFFSET_TWO = 8;
42 }
GetU32Data(const char * ptr)43 uint32_t GetU32Data(const char* ptr)
44 {
45 // convert fuzz input data to an integer
46 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
47 ptr[INPUT_THREE];
48 }
GetFuzzAbilityToken()49 sptr<Token> GetFuzzAbilityToken()
50 {
51 sptr<Token> token = nullptr;
52
53 AbilityRequest abilityRequest;
54 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
55 abilityRequest.abilityInfo.name = "MainAbility";
56 abilityRequest.abilityInfo.type = AbilityType::PAGE;
57 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
58 if (abilityRecord) {
59 token = abilityRecord->GetToken();
60 }
61
62 return token;
63 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)64 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
65 {
66 std::shared_ptr<AppMgrServiceInner> mgrServiceInner;
67 std::shared_ptr<AAFwk::TaskHandlerWrap> handler;
68 AmsMgrScheduler amsMgrScheduler(mgrServiceInner, handler);
69 sptr<IStartSpecifiedAbilityResponse> response;
70 amsMgrScheduler.RegisterStartSpecifiedAbilityResponse(response);
71 sptr<IRemoteObject> token = GetFuzzAbilityToken();
72 sptr<IRemoteObject> preToken = nullptr;
73 std::shared_ptr<AbilityInfo> abilityInfoptr;
74 std::shared_ptr<ApplicationInfo> appInfo;
75 std::shared_ptr<AAFwk::Want> wantptr;
76 amsMgrScheduler.LoadAbility(token, preToken, abilityInfoptr, appInfo, wantptr);
77 AppExecFwk::AbilityState state = AppExecFwk::AbilityState::ABILITY_STATE_READY;
78 amsMgrScheduler.UpdateAbilityState(token, state);
79 AppExecFwk::ExtensionState extensionState = AppExecFwk::ExtensionState::EXTENSION_STATE_READY;
80 amsMgrScheduler.UpdateExtensionState(token, extensionState);
81 bool clearMissionFlag = *data % ENABLE;
82 amsMgrScheduler.TerminateAbility(token, clearMissionFlag);
83 sptr<IAppStateCallback> callback;
84 amsMgrScheduler.RegisterAppStateCallback(callback);
85 int32_t visibility = static_cast<int32_t>(GetU32Data(data));
86 int32_t perceptibility = static_cast<int32_t>(GetU32Data(data));
87 int32_t connectionState = static_cast<int32_t>(GetU32Data(data));
88 amsMgrScheduler.AbilityBehaviorAnalysis(token, preToken, visibility, perceptibility, connectionState);
89 int32_t userId = static_cast<int32_t>(GetU32Data(data));
90 amsMgrScheduler.KillProcessesByUserId(userId);
91 std::string bundleName(data, size);
92 int accountId = static_cast<int>(GetU32Data(data));
93 amsMgrScheduler.KillProcessWithAccount(bundleName, accountId);
94 amsMgrScheduler.AbilityAttachTimeOut(token);
95 amsMgrScheduler.PrepareTerminate(token);
96 amsMgrScheduler.KillApplication(bundleName);
97 int uid = static_cast<int>(GetU32Data(data));
98 amsMgrScheduler.KillApplicationByUid(bundleName, uid);
99 amsMgrScheduler.KillApplicationSelf();
100 AppExecFwk::RunningProcessInfo info;
101 amsMgrScheduler.GetRunningProcessInfoByToken(token, info);
102 Parcel wantParcel;
103 Want* want = nullptr;
104 if (wantParcel.WriteBuffer(data, size)) {
105 want = Want::Unmarshalling(wantParcel);
106 }
107 AbilityInfo abilityInfo;
108 amsMgrScheduler.StartSpecifiedAbility(*want, abilityInfo);
109 int pid = static_cast<int>(GetU32Data(data));
110 AppExecFwk::ApplicationInfo application;
111 bool debug;
112 amsMgrScheduler.GetApplicationInfoByProcessID(pid, application, debug);
113 return amsMgrScheduler.IsReady();
114 }
115 }
116
117 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)118 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
119 {
120 /* Run your code on data */
121 if (data == nullptr) {
122 std::cout << "invalid data" << std::endl;
123 return 0;
124 }
125
126 /* Validate the length of size */
127 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
128 return 0;
129 }
130
131 char* ch = (char*)malloc(size + 1);
132 if (ch == nullptr) {
133 std::cout << "malloc failed." << std::endl;
134 return 0;
135 }
136
137 (void)memset_s(ch, size + 1, 0x00, size + 1);
138 if (memcpy_s(ch, size, data, size) != EOK) {
139 std::cout << "copy failed." << std::endl;
140 free(ch);
141 ch = nullptr;
142 return 0;
143 }
144
145 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
146 free(ch);
147 ch = nullptr;
148 return 0;
149 }
150
151