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