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 "socket_fuzzer.h"
17 #include <memory>
18 #include <string>
19 #include <securec.h>
20 #include "socket.h"
21
22 namespace OHOS {
23 static std::string DEFAULT_SOCKET_NAME = "com.communication.fuzz.socketName";
24 static std::string DEFAULT_SOCKET_PEER_NAME = "com.communication.fuzz.peerName";
25 static std::string DEFAULT_SOCKET_PEER_NETWORKID =
26 "a8ynvpdaihw1f6nknjd2hkfhxljxypkr6kvjsbhnhpp16974uo4fvsrpfa6t50fm";
27 static std::string DEFAULT_SOCKET_PKG_NAME = "com.communication.fuzz.pkgName";
28
SocketTestWithName(const uint8_t * data,size_t size)29 void SocketTestWithName(const uint8_t *data, size_t size)
30 {
31 if ((data == nullptr) || (size == 0)) {
32 return;
33 }
34
35 const size_t bufSize = size + 1;
36 std::unique_ptr<char[]> socketName = std::make_unique<char[]>(bufSize);
37 if (socketName == nullptr) {
38 return;
39 }
40
41 if (memset_s(socketName.get(), bufSize, 0, bufSize) != EOK) {
42 return;
43 }
44
45 if (memcpy_s(socketName.get(), bufSize, data, size) != EOK) {
46 return;
47 }
48
49 SocketInfo info = {
50 .name = socketName.get(),
51 .peerName = const_cast<char *>(DEFAULT_SOCKET_PEER_NAME.c_str()),
52 .peerNetworkId = const_cast<char *>(DEFAULT_SOCKET_PEER_NETWORKID.c_str()),
53 .pkgName = const_cast<char *>(DEFAULT_SOCKET_PKG_NAME.c_str()),
54 .dataType = DATA_TYPE_MESSAGE,
55 };
56
57 (void)Socket(info);
58 }
59
SocketTestWithPeerName(const uint8_t * data,size_t size)60 void SocketTestWithPeerName(const uint8_t *data, size_t size)
61 {
62 if ((data == nullptr) || (size == 0)) {
63 return;
64 }
65
66 const size_t bufSize = size + 1;
67 std::unique_ptr<char[]> socketPeerName = std::make_unique<char[]>(bufSize);
68 if (socketPeerName == nullptr) {
69 return;
70 }
71
72 if (memset_s(socketPeerName.get(), bufSize, 0, bufSize) != EOK) {
73 return;
74 }
75
76 if (memcpy_s(socketPeerName.get(), bufSize, data, size) != EOK) {
77 return;
78 }
79
80 SocketInfo info = {
81 .name = const_cast<char *>(DEFAULT_SOCKET_NAME.c_str()),
82 .peerName = socketPeerName.get(),
83 .peerNetworkId = const_cast<char *>(DEFAULT_SOCKET_PEER_NETWORKID.c_str()),
84 .pkgName = const_cast<char *>(DEFAULT_SOCKET_PKG_NAME.c_str()),
85 .dataType = DATA_TYPE_MESSAGE,
86 };
87
88 (void)Socket(info);
89 }
90
SocketTestWithNetworkId(const uint8_t * data,size_t size)91 void SocketTestWithNetworkId(const uint8_t *data, size_t size)
92 {
93 if ((data == nullptr) || (size == 0)) {
94 return;
95 }
96
97 const size_t bufSize = size + 1;
98 std::unique_ptr<char[]> socketNetworkId = std::make_unique<char[]>(bufSize);
99 if (socketNetworkId == nullptr) {
100 return;
101 }
102
103 if (memset_s(socketNetworkId.get(), bufSize, 0, bufSize) != EOK) {
104 return;
105 }
106
107 if (memcpy_s(socketNetworkId.get(), bufSize, data, size) != EOK) {
108 return;
109 }
110
111 SocketInfo info = {
112 .name = const_cast<char *>(DEFAULT_SOCKET_NAME.c_str()),
113 .peerName = const_cast<char *>(DEFAULT_SOCKET_PEER_NAME.c_str()),
114 .peerNetworkId = socketNetworkId.get(),
115 .pkgName = const_cast<char *>(DEFAULT_SOCKET_PKG_NAME.c_str()),
116 .dataType = DATA_TYPE_MESSAGE,
117 };
118
119 (void)Socket(info);
120 }
121
SocketTestWithPkgName(const uint8_t * data,size_t size)122 void SocketTestWithPkgName(const uint8_t *data, size_t size)
123 {
124 if ((data == nullptr) || (size == 0)) {
125 return;
126 }
127
128 const size_t bufSize = size + 1;
129 std::unique_ptr<char[]> socketPkgName = std::make_unique<char[]>(bufSize);
130 if (socketPkgName == nullptr) {
131 return;
132 }
133
134 if (memset_s(socketPkgName.get(), bufSize, 0, bufSize) != EOK) {
135 return;
136 }
137
138 if (memcpy_s(socketPkgName.get(), bufSize, data, size) != EOK) {
139 return;
140 }
141
142 SocketInfo info = {
143 .name = const_cast<char *>(DEFAULT_SOCKET_NAME.c_str()),
144 .peerName = const_cast<char *>(DEFAULT_SOCKET_PEER_NAME.c_str()),
145 .peerNetworkId = const_cast<char *>(DEFAULT_SOCKET_PKG_NAME.c_str()),
146 .pkgName = socketPkgName.get(),
147 .dataType = DATA_TYPE_MESSAGE,
148 };
149
150 (void)Socket(info);
151 }
152
SocketTestWithDataType(const uint8_t * data,size_t size)153 void SocketTestWithDataType(const uint8_t *data, size_t size)
154 {
155 if ((data == nullptr) || (size < sizeof(TransDataType))) {
156 return;
157 }
158
159 TransDataType socketDataType = DATA_TYPE_BUTT;
160 if (memcpy_s(&socketDataType, sizeof(TransDataType), data, sizeof(TransDataType)) != EOK) {
161 return;
162 }
163
164 SocketInfo info = {
165 .name = const_cast<char *>(DEFAULT_SOCKET_NAME.c_str()),
166 .peerName = const_cast<char *>(DEFAULT_SOCKET_PEER_NAME.c_str()),
167 .peerNetworkId = const_cast<char *>(DEFAULT_SOCKET_PKG_NAME.c_str()),
168 .pkgName = const_cast<char *>(DEFAULT_SOCKET_PKG_NAME.c_str()),
169 .dataType = socketDataType,
170 };
171
172 (void)Socket(info);
173 }
174 } // namespace OHOS
175
176 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)177 extern "C" int32_t LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
178 {
179 OHOS::SocketTestWithName(data, size);
180 OHOS::SocketTestWithPeerName(data, size);
181 OHOS::SocketTestWithNetworkId(data, size);
182 OHOS::SocketTestWithPkgName(data, size);
183 OHOS::SocketTestWithDataType(data, size);
184 return 0;
185 }
186