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 "locatorcallbackhost_fuzzer.h"
17
18 #include "accesstoken_kit.h"
19 #include "if_system_ability_manager.h"
20 #include "iservice_registry.h"
21 #include "message_option.h"
22 #include "message_parcel.h"
23 #include "nativetoken_kit.h"
24 #include "system_ability_definition.h"
25 #include "token_setproc.h"
26 #include "locator_ability.h"
27
28 #include "locator_callback_napi.h"
29 #include "permission_manager.h"
30
31 namespace OHOS {
32 using namespace OHOS::Location;
33 const int32_t MAX_MEM_SIZE = 4 * 1024 * 1024;
34 const int32_t LOCATION_PERM_NUM = 4;
MockNativePermission()35 void MockNativePermission()
36 {
37 const char *perms[] = {
38 ACCESS_LOCATION.c_str(), ACCESS_APPROXIMATELY_LOCATION.c_str(),
39 ACCESS_BACKGROUND_LOCATION.c_str(), MANAGE_SECURE_SETTINGS.c_str(),
40 };
41 NativeTokenInfoParams infoInstance = {
42 .dcapsNum = 0,
43 .permsNum = LOCATION_PERM_NUM,
44 .aclsNum = 0,
45 .dcaps = nullptr,
46 .perms = perms,
47 .acls = nullptr,
48 .processName = "GnssAbility_FuzzTest",
49 .aplStr = "system_basic",
50 };
51 auto tokenId = GetAccessTokenId(&infoInstance);
52 SetSelfTokenID(tokenId);
53 Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
54 LocatorAbility::GetInstance()->EnableAbility(true);
55 }
56
ParseData(const uint8_t * data,size_t size)57 char* ParseData(const uint8_t* data, size_t size)
58 {
59 if (data == nullptr) {
60 return nullptr;
61 }
62
63 if (size > MAX_MEM_SIZE) {
64 return nullptr;
65 }
66
67 char* ch = (char *)malloc(size + 1);
68 if (ch == nullptr) {
69 return nullptr;
70 }
71
72 (void)memset_s(ch, size + 1, 0x00, size + 1);
73 if (memcpy_s(ch, size, data, size) != EOK) {
74 free(ch);
75 ch = nullptr;
76 return nullptr;
77 }
78 return ch;
79 }
80
LocatorCallbackHost001FuzzTest(const char * data,size_t size)81 bool LocatorCallbackHost001FuzzTest(const char* data, size_t size)
82 {
83 MessageParcel requestParcel;
84 requestParcel.WriteInterfaceToken(u"location.ILocatorCallback");
85 requestParcel.WriteBuffer(data, size);
86 requestParcel.RewindRead(0);
87
88 MessageParcel reply;
89 MessageOption option;
90
91 auto callback = sptr<LocatorCallbackNapi>(new (std::nothrow) LocatorCallbackNapi());
92 callback->OnRemoteRequest(ILocatorCallback::RECEIVE_LOCATION_INFO_EVENT, requestParcel, reply, option);
93
94 return true;
95 }
96
LocatorCallbackHost002FuzzTest(const char * data,size_t size)97 bool LocatorCallbackHost002FuzzTest(const char* data, size_t size)
98 {
99 MessageParcel requestParcel;
100 requestParcel.WriteInterfaceToken(u"location.ILocatorCallback");
101 requestParcel.WriteBuffer(data, size);
102 requestParcel.RewindRead(0);
103
104 MessageParcel reply;
105 MessageOption option;
106
107 auto callback = sptr<LocatorCallbackNapi>(new (std::nothrow) LocatorCallbackNapi());
108 callback->OnRemoteRequest(ILocatorCallback::RECEIVE_LOCATION_STATUS_EVENT, requestParcel, reply, option);
109
110 return true;
111 }
112
LocatorCallbackHost003FuzzTest(const char * data,size_t size)113 bool LocatorCallbackHost003FuzzTest(const char* data, size_t size)
114 {
115 MessageParcel requestParcel;
116 requestParcel.WriteInterfaceToken(u"location.ILocatorCallback");
117 requestParcel.WriteBuffer(data, size);
118 requestParcel.RewindRead(0);
119
120 MessageParcel reply;
121 MessageOption option;
122
123 auto callback = sptr<LocatorCallbackNapi>(new (std::nothrow) LocatorCallbackNapi());
124 callback->OnRemoteRequest(ILocatorCallback::RECEIVE_ERROR_INFO_EVENT, requestParcel, reply, option);
125
126 return true;
127 }
128 } // namespace OHOS
129
130 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)131 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
132 {
133 OHOS::MockNativePermission();
134 char* ch = OHOS::ParseData(data, size);
135 if (ch != nullptr) {
136 OHOS::LocatorCallbackHost001FuzzTest(ch, size);
137 OHOS::LocatorCallbackHost002FuzzTest(ch, size);
138 OHOS::LocatorCallbackHost003FuzzTest(ch, size);
139 free(ch);
140 ch = nullptr;
141 }
142 return 0;
143 }
144
145