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 "abilitytransitiondone_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 #include "data_ability_manager.h"
25
26 using namespace OHOS::AAFwk;
27 using namespace OHOS::AppExecFwk;
28
29 namespace OHOS {
30 namespace {
31 constexpr size_t FOO_MAX_LEN = 1024;
32 constexpr size_t U32_AT_SIZE = 4;
33 constexpr int32_t UID_TEST = 100;
34 constexpr int OFFSET_ZERO = 24;
35 }
GetFuzzAbilityToken(AbilityType type)36 sptr<Token> GetFuzzAbilityToken(AbilityType type)
37 {
38 sptr<Token> token = nullptr;
39
40 AbilityRequest abilityRequest;
41 abilityRequest.uid = UID_TEST;
42 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
43 abilityRequest.abilityInfo.name = "MainAbility";
44 abilityRequest.abilityInfo.type = type;
45 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
46 if (abilityRecord) {
47 token = abilityRecord->GetToken();
48 }
49
50 return token;
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] << OFFSET_ZERO) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
56 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)57 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
58 {
59 auto abilitymgr = AbilityManagerClient::GetInstance();
60 int userId = static_cast<int>(GetU32Data(data));
61 auto connectManager = new AbilityConnectManager(userId);
62 auto dataManager = new DataAbilityManager();
63 int state = AbilityLifeCycleState::ABILITY_STATE_INITIAL;
64 PacMap saveData;
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 // get dataToken
84 sptr<IRemoteObject> dataToken = GetFuzzAbilityToken(AbilityType::DATA);
85 if (!dataToken) {
86 std::cout << "Get data ability token failed." << std::endl;
87 return false;
88 }
89
90 if (connectManager) {
91 connectManager->AbilityTransitionDone(serviceToken, state);
92 }
93
94 if (dataManager) {
95 dataManager->AbilityTransitionDone(dataToken, state);
96 }
97
98 if (abilitymgr->AbilityTransitionDone(token, state, saveData) != 0) {
99 return false;
100 }
101
102 return true;
103 }
104 }
105
106 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)107 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
108 {
109 /* Run your code on data */
110 if (data == nullptr) {
111 std::cout << "invalid data" << std::endl;
112 return 0;
113 }
114
115 /* Validate the length of size */
116 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
117 return 0;
118 }
119
120 char* ch = (char *)malloc(size + 1);
121 if (ch == nullptr) {
122 std::cout << "malloc failed." << std::endl;
123 return 0;
124 }
125
126 (void)memset_s(ch, size + 1, 0x00, size + 1);
127 if (memcpy_s(ch, size, data, size) != EOK) {
128 std::cout << "copy failed." << std::endl;
129 free(ch);
130 ch = nullptr;
131 return 0;
132 }
133
134 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
135 free(ch);
136 ch = nullptr;
137 return 0;
138 }
139
140