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 }
55
ParseData(const uint8_t * data,size_t size)56 char* ParseData(const uint8_t* data, size_t size)
57 {
58 if (data == nullptr) {
59 return nullptr;
60 }
61
62 if (size > MAX_MEM_SIZE) {
63 return nullptr;
64 }
65
66 char* ch = (char *)malloc(size + 1);
67 if (ch == nullptr) {
68 return nullptr;
69 }
70
71 (void)memset_s(ch, size + 1, 0x00, size + 1);
72 if (memcpy_s(ch, size, data, size) != EOK) {
73 free(ch);
74 ch = nullptr;
75 return nullptr;
76 }
77 return ch;
78 }
79
LocatorCallbackHost001FuzzTest(const char * data,size_t size)80 bool LocatorCallbackHost001FuzzTest(const char* data, size_t size)
81 {
82 MessageParcel requestParcel;
83 requestParcel.WriteInterfaceToken(u"location.ILocatorCallback");
84 requestParcel.WriteBuffer(data, size);
85 requestParcel.RewindRead(0);
86
87 MessageParcel reply;
88 MessageOption option;
89
90 auto callback = sptr<LocatorCallbackNapi>(new (std::nothrow) LocatorCallbackNapi());
91 callback->OnRemoteRequest(ILocatorCallback::RECEIVE_LOCATION_INFO_EVENT, requestParcel, reply, option);
92
93 return true;
94 }
95
LocatorCallbackHost002FuzzTest(const char * data,size_t size)96 bool LocatorCallbackHost002FuzzTest(const char* data, size_t size)
97 {
98 MessageParcel requestParcel;
99 requestParcel.WriteInterfaceToken(u"location.ILocatorCallback");
100 requestParcel.WriteBuffer(data, size);
101 requestParcel.RewindRead(0);
102
103 MessageParcel reply;
104 MessageOption option;
105
106 auto callback = sptr<LocatorCallbackNapi>(new (std::nothrow) LocatorCallbackNapi());
107 callback->OnRemoteRequest(ILocatorCallback::RECEIVE_LOCATION_STATUS_EVENT, requestParcel, reply, option);
108
109 return true;
110 }
111
LocatorCallbackHost003FuzzTest(const char * data,size_t size)112 bool LocatorCallbackHost003FuzzTest(const char* data, size_t size)
113 {
114 MessageParcel requestParcel;
115 requestParcel.WriteInterfaceToken(u"location.ILocatorCallback");
116 requestParcel.WriteBuffer(data, size);
117 requestParcel.RewindRead(0);
118
119 MessageParcel reply;
120 MessageOption option;
121
122 auto callback = sptr<LocatorCallbackNapi>(new (std::nothrow) LocatorCallbackNapi());
123 callback->OnRemoteRequest(ILocatorCallback::RECEIVE_ERROR_INFO_EVENT, requestParcel, reply, option);
124
125 return true;
126 }
127 } // namespace OHOS
128
129 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)130 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
131 {
132 OHOS::MockNativePermission();
133 char* ch = OHOS::ParseData(data, size);
134 if (ch != nullptr) {
135 OHOS::LocatorCallbackHost001FuzzTest(ch, size);
136 OHOS::LocatorCallbackHost002FuzzTest(ch, size);
137 OHOS::LocatorCallbackHost003FuzzTest(ch, size);
138 free(ch);
139 ch = nullptr;
140 }
141 return 0;
142 }
143
144