1 /*
2 * Copyright (c) 2024 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 "scheduleconnectabilitydone_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "ability_manager_client.h"
22 #include "ability_record.h"
23 #include "ability_connect_manager.h"
24
25 using namespace OHOS::AAFwk;
26 using namespace OHOS::AppExecFwk;
27
28 namespace OHOS {
29 namespace {
30 constexpr size_t FOO_MAX_LEN = 1024;
31 constexpr size_t U32_AT_SIZE = 4;
32 constexpr int32_t UID_TEST = 100;
33 constexpr int OFFSET_ZERO = 24;
34 }
GetFuzzAbilityToken(AbilityType type)35 sptr<Token> GetFuzzAbilityToken(AbilityType type)
36 {
37 sptr<Token> token = nullptr;
38
39 AbilityRequest abilityRequest;
40 abilityRequest.uid = UID_TEST;
41 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
42 abilityRequest.abilityInfo.name = "MainAbility";
43 abilityRequest.abilityInfo.type = type;
44 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
45 if (abilityRecord) {
46 token = abilityRecord->GetToken();
47 }
48
49 return token;
50 }
GetU32Data(const char * ptr)51 uint32_t GetU32Data(const char* ptr)
52 {
53 // convert fuzz input data to an integer
54 return (ptr[0] << OFFSET_ZERO) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
55 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)56 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
57 {
58 auto abilitymgr = AbilityManagerClient::GetInstance();
59 int userId = static_cast<int>(GetU32Data(data));
60 std::shared_ptr<AbilityConnectManager> connectManager = std::make_shared<AbilityConnectManager>(userId);
61 if (!connectManager) {
62 return false;
63 }
64 sptr<IRemoteObject> remoteObject;
65 if (!abilitymgr) {
66 return false;
67 }
68
69 // get token
70 sptr<IRemoteObject> token = GetFuzzAbilityToken(AbilityType::PAGE);
71 if (!token) {
72 std::cout << "Get ability token failed." << std::endl;
73 return false;
74 }
75
76 // get serviceToken
77 sptr<IRemoteObject> serviceToken = GetFuzzAbilityToken(AbilityType::SERVICE);
78 if (!serviceToken) {
79 std::cout << "Get service ability token failed." << std::endl;
80 return false;
81 }
82
83 if (connectManager) {
84 connectManager->ScheduleConnectAbilityDoneLocked(serviceToken, remoteObject);
85 }
86
87 if (abilitymgr->ScheduleConnectAbilityDone(token, remoteObject) != 0) {
88 return false;
89 }
90
91 return true;
92 }
93 }
94
95 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)96 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
97 {
98 /* Run your code on data */
99 if (data == nullptr) {
100 std::cout << "invalid data" << std::endl;
101 return 0;
102 }
103
104 /* Validate the length of size */
105 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
106 return 0;
107 }
108
109 char* ch = static_cast<char*>(malloc(size + 1));
110 if (ch == nullptr) {
111 std::cout << "malloc failed." << std::endl;
112 return 0;
113 }
114
115 (void)memset_s(ch, size + 1, 0x00, size + 1);
116 if (memcpy_s(ch, size, data, size) != EOK) {
117 std::cout << "copy failed." << std::endl;
118 free(ch);
119 ch = nullptr;
120 return 0;
121 }
122
123 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
124 free(ch);
125 ch = nullptr;
126 return 0;
127 }
128
129