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 #include "daemonstub_fuzzer.h"
16
17 #include <cstddef>
18 #include <cstdint>
19 #include <cstring>
20 #include <string>
21
22 #include "daemon_stub.h"
23 #include "distributed_file_daemon_ipc_interface_code.h"
24 #include "ipc_skeleton.h"
25 #include "message_option.h"
26 #include "message_parcel.h"
27 #include "securec.h"
28 #include "accesstoken_kit.h"
29 #include "utils_log.h"
30 #include "nativetoken_kit.h"
31 #include "token_setproc.h"
32
33 namespace OHOS {
34 constexpr pid_t DATA_UID = 3012;
35 constexpr pid_t DAEMON_UID = 1009;
36 static pid_t UID = DAEMON_UID;
37 #ifdef CONFIG_IPC_SINGLE
38 using namespace IPC_SINGLE;
39 #endif
GetCallingUid()40 pid_t IPCSkeleton::GetCallingUid()
41 {
42 return UID;
43 }
44 }
45
46 namespace OHOS {
47 using namespace OHOS::Storage::DistributedFile;
48
49 class DaemonStubImpl : public DaemonStub {
50 public:
51 DaemonStubImpl() = default;
~DaemonStubImpl()52 ~DaemonStubImpl() override {}
OpenP2PConnection(const DistributedHardware::DmDeviceInfo & deviceInfo)53 int32_t OpenP2PConnection(const DistributedHardware::DmDeviceInfo &deviceInfo) override
54 {
55 return 0;
56 }
57
CloseP2PConnection(const DistributedHardware::DmDeviceInfo & deviceInfo)58 int32_t CloseP2PConnection(const DistributedHardware::DmDeviceInfo &deviceInfo) override
59 {
60 return 0;
61 }
62
OpenP2PConnectionEx(const std::string & networkId,sptr<IFileDfsListener> remoteReverseObj)63 int32_t OpenP2PConnectionEx(const std::string &networkId, sptr<IFileDfsListener> remoteReverseObj) override
64 {
65 return 0;
66 }
67
CloseP2PConnectionEx(const std::string & networkId)68 int32_t CloseP2PConnectionEx(const std::string &networkId) override
69 {
70 return 0;
71 }
72
PrepareSession(const std::string & srcUri,const std::string & dstUri,const std::string & srcDeviceId,const sptr<IRemoteObject> & listener,HmdfsInfo & info)73 int32_t PrepareSession(const std::string &srcUri,
74 const std::string &dstUri,
75 const std::string &srcDeviceId,
76 const sptr<IRemoteObject> &listener,
77 HmdfsInfo &info) override
78 {
79 return 0;
80 }
81
CancelCopyTask(const std::string & sessionName)82 int32_t CancelCopyTask(const std::string &sessionName) override
83 {
84 return 0;
85 }
86
RequestSendFile(const std::string & srcUri,const std::string & dstPath,const std::string & remoteDeviceId,const std::string & sessionName)87 int32_t RequestSendFile(const std::string &srcUri,
88 const std::string &dstPath,
89 const std::string &remoteDeviceId,
90 const std::string &sessionName) override
91 {
92 return 0;
93 }
94
GetRemoteCopyInfo(const std::string & srcUri,bool & isFile,bool & isDir)95 int32_t GetRemoteCopyInfo(const std::string &srcUri, bool &isFile, bool &isDir) override
96 {
97 return 0;
98 }
99
PushAsset(int32_t userId,const sptr<AssetObj> & assetObj,const sptr<IAssetSendCallback> & sendCallback)100 int32_t PushAsset(int32_t userId,
101 const sptr<AssetObj> &assetObj,
102 const sptr<IAssetSendCallback> &sendCallback) override
103 {
104 return 0;
105 }
106
RegisterAssetCallback(const sptr<IAssetRecvCallback> & recvCallback)107 int32_t RegisterAssetCallback(const sptr<IAssetRecvCallback> &recvCallback) override
108 {
109 return 0;
110 }
111
UnRegisterAssetCallback(const sptr<IAssetRecvCallback> & recvCallback)112 int32_t UnRegisterAssetCallback(const sptr<IAssetRecvCallback> &recvCallback) override
113 {
114 return 0;
115 }
116 };
117
HandleOpenP2PConnectionFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)118 void HandleOpenP2PConnectionFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
119 const uint8_t *data,
120 size_t size)
121 {
122 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_OPEN_P2P_CONNECTION);
123 MessageParcel datas;
124 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
125 datas.WriteBuffer(data, size);
126 datas.RewindRead(0);
127 MessageParcel reply;
128 MessageOption option;
129
130 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
131 }
132
HandleCloseP2PConnectionFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)133 void HandleCloseP2PConnectionFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
134 const uint8_t *data,
135 size_t size)
136 {
137 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_CLOSE_P2P_CONNECTION);
138 MessageParcel datas;
139 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
140 datas.WriteBuffer(data, size);
141 datas.RewindRead(0);
142 MessageParcel reply;
143 MessageOption option;
144
145 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
146 }
147
HandleOpenP2PConnectionExFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)148 void HandleOpenP2PConnectionExFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
149 const uint8_t *data,
150 size_t size)
151 {
152 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_OPEN_P2P_CONNECTION_EX);
153 MessageParcel datas;
154 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
155 datas.WriteBuffer(data, size);
156 datas.RewindRead(0);
157 MessageParcel reply;
158 MessageOption option;
159
160 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
161 }
162
HandleCloseP2PConnectionExFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)163 void HandleCloseP2PConnectionExFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
164 const uint8_t *data,
165 size_t size)
166 {
167 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_CLOSE_P2P_CONNECTION_EX);
168 MessageParcel datas;
169 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
170 datas.WriteBuffer(data, size);
171 datas.RewindRead(0);
172 MessageParcel reply;
173 MessageOption option;
174
175 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
176 }
177
HandlePrepareSessionFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)178 void HandlePrepareSessionFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr, const uint8_t *data, size_t size)
179 {
180 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_PREPARE_SESSION);
181 MessageParcel datas;
182 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
183 datas.WriteBuffer(data, size);
184 datas.RewindRead(0);
185 MessageParcel reply;
186 MessageOption option;
187
188 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
189 }
190
HandleCancelCopyTaskFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)191 void HandleCancelCopyTaskFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr, const uint8_t *data, size_t size)
192 {
193 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_CANCEL_COPY_TASK);
194 MessageParcel datas;
195 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
196 datas.WriteBuffer(data, size);
197 datas.RewindRead(0);
198 MessageParcel reply;
199 MessageOption option;
200
201 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
202 }
203
HandleRequestSendFileFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)204 void HandleRequestSendFileFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
205 const uint8_t *data,
206 size_t size)
207 {
208 OHOS::UID = DAEMON_UID;
209 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_REQUEST_SEND_FILE);
210 MessageParcel datas;
211 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
212 datas.WriteBuffer(data, size);
213 datas.RewindRead(0);
214 MessageParcel reply;
215 MessageOption option;
216
217 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
218 }
219
HandleGetRemoteCopyInfoFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)220 void HandleGetRemoteCopyInfoFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
221 const uint8_t *data,
222 size_t size)
223 {
224 OHOS::UID = DAEMON_UID;
225 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_GET_REMOTE_COPY_INFO);
226 MessageParcel datas;
227 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
228 datas.WriteBuffer(data, size);
229 datas.RewindRead(0);
230 MessageParcel reply;
231 MessageOption option;
232
233 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
234 }
235
HandlePushAssetFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)236 void HandlePushAssetFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr, const uint8_t *data, size_t size)
237 {
238 OHOS::UID = DATA_UID;
239 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_PUSH_ASSET);
240 MessageParcel datas;
241 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
242 datas.WriteBuffer(data, size);
243 datas.RewindRead(0);
244 MessageParcel reply;
245 MessageOption option;
246
247 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
248 }
249
HandleRegisterRecvCallbackFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)250 void HandleRegisterRecvCallbackFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
251 const uint8_t *data,
252 size_t size)
253 {
254 OHOS::UID = DATA_UID;
255 uint32_t code = static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_REGISTER_ASSET_CALLBACK);
256 MessageParcel datas;
257 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
258 datas.WriteBuffer(data, size);
259 datas.RewindRead(0);
260 MessageParcel reply;
261 MessageOption option;
262
263 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
264 }
265
HandleUnRegisterRecvCallbackFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,const uint8_t * data,size_t size)266 void HandleUnRegisterRecvCallbackFuzzTest(std::shared_ptr<DaemonStub> daemonStubPtr,
267 const uint8_t *data,
268 size_t size)
269 {
270 OHOS::UID = DATA_UID;
271 uint32_t code =
272 static_cast<uint32_t>(DistributedFileDaemonInterfaceCode::DISTRIBUTED_FILE_UN_REGISTER_ASSET_CALLBACK);
273 MessageParcel datas;
274 datas.WriteInterfaceToken(DaemonStub::GetDescriptor());
275 datas.WriteBuffer(data, size);
276 datas.RewindRead(0);
277 MessageParcel reply;
278 MessageOption option;
279
280 daemonStubPtr->OnRemoteRequest(code, datas, reply, option);
281 }
282
SetAccessTokenPermission()283 void SetAccessTokenPermission()
284 {
285 uint64_t tokenId;
286 const char *perms[1];
287 perms[0] = "ohos.permission.DISTRIBUTED_DATASYNC";
288
289 NativeTokenInfoParams infoInstance = {
290 .dcapsNum = 0,
291 .permsNum = 1,
292 .aclsNum = 0,
293 .dcaps = nullptr,
294 .perms = perms,
295 .acls = nullptr,
296 .processName = "distributdFileDaemonstubFuzzer",
297 .aplStr = "system_basic",
298 };
299 tokenId = GetAccessTokenId(&infoInstance);
300 if (tokenId == 0) {
301 LOGE("Get Acess Token Id Failed");
302 return;
303 }
304 int ret = SetSelfTokenID(tokenId);
305 if (ret != 0) {
306 LOGE("Set Acess Token Id Failed");
307 return;
308 }
309 ret = Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
310 if (ret < 0) {
311 LOGE("Reload Native Token Info Failed");
312 return;
313 }
314 }
315 } // namespace OHOS
316
317 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)318 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
319 {
320 /* Run your code on data */
321 OHOS::SetAccessTokenPermission();
322 auto daemonStubPtr = std::make_shared<OHOS::DaemonStubImpl>();
323 OHOS::HandleOpenP2PConnectionFuzzTest(daemonStubPtr, data, size);
324 OHOS::HandleCloseP2PConnectionFuzzTest(daemonStubPtr, data, size);
325 OHOS::HandlePrepareSessionFuzzTest(daemonStubPtr, data, size);
326 OHOS::HandleRequestSendFileFuzzTest(daemonStubPtr, data, size);
327 OHOS::HandleOpenP2PConnectionExFuzzTest(daemonStubPtr, data, size);
328 OHOS::HandleCloseP2PConnectionExFuzzTest(daemonStubPtr, data, size);
329 OHOS::HandleCancelCopyTaskFuzzTest(daemonStubPtr, data, size);
330 OHOS::HandleGetRemoteCopyInfoFuzzTest(daemonStubPtr, data, size);
331 OHOS::HandlePushAssetFuzzTest(daemonStubPtr, data, size);
332 OHOS::HandleRegisterRecvCallbackFuzzTest(daemonStubPtr, data, size);
333 OHOS::HandleUnRegisterRecvCallbackFuzzTest(daemonStubPtr, data, size);
334 return 0;
335 }
336