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99c048ef | 1 | /** @file\r |
2 | Functions implementation related with DHCPv4/v6 for DNS driver.\r | |
3 | \r | |
f75a7f56 | 4 | Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r |
ecf98fbc | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
99c048ef | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "DnsImpl.h"\r | |
10 | \r | |
11 | /**\r | |
12 | This function initialize the DHCP4 message instance.\r | |
13 | \r | |
14 | This function will pad each item of dhcp4 message packet.\r | |
15 | \r | |
16 | @param Seed Pointer to the message instance of the DHCP4 packet.\r | |
17 | @param InterfaceInfo Pointer to the EFI_IP4_CONFIG2_INTERFACE_INFO instance.\r | |
18 | \r | |
19 | **/\r | |
20 | VOID\r | |
21 | DnsInitSeedPacket (\r | |
22 | OUT EFI_DHCP4_PACKET *Seed,\r | |
23 | IN EFI_IP4_CONFIG2_INTERFACE_INFO *InterfaceInfo\r | |
24 | )\r | |
25 | {\r | |
26 | EFI_DHCP4_HEADER *Header;\r | |
27 | \r | |
28 | //\r | |
29 | // Get IfType and HwAddressSize from SNP mode data.\r | |
30 | //\r | |
31 | Seed->Size = sizeof (EFI_DHCP4_PACKET);\r | |
32 | Seed->Length = sizeof (Seed->Dhcp4);\r | |
33 | Header = &Seed->Dhcp4.Header;\r | |
34 | ZeroMem (Header, sizeof (EFI_DHCP4_HEADER));\r | |
35 | Header->OpCode = DHCP4_OPCODE_REQUEST;\r | |
36 | Header->HwType = InterfaceInfo->IfType;\r | |
37 | Header->HwAddrLen = (UINT8) InterfaceInfo->HwAddressSize;\r | |
38 | CopyMem (Header->ClientHwAddr, &(InterfaceInfo->HwAddress), Header->HwAddrLen);\r | |
39 | \r | |
40 | Seed->Dhcp4.Magik = DHCP4_MAGIC;\r | |
41 | Seed->Dhcp4.Option[0] = DHCP4_TAG_EOP;\r | |
42 | }\r | |
43 | \r | |
44 | /**\r | |
f75a7f56 | 45 | The common notify function.\r |
99c048ef | 46 | \r |
47 | @param[in] Event The event signaled.\r | |
48 | @param[in] Context The context.\r | |
49 | \r | |
50 | **/\r | |
51 | VOID\r | |
52 | EFIAPI\r | |
53 | DhcpCommonNotify (\r | |
54 | IN EFI_EVENT Event,\r | |
55 | IN VOID *Context\r | |
56 | )\r | |
57 | {\r | |
58 | if ((Event == NULL) || (Context == NULL)) {\r | |
59 | return ;\r | |
60 | }\r | |
61 | \r | |
62 | *((BOOLEAN *) Context) = TRUE;\r | |
63 | }\r | |
64 | \r | |
65 | /**\r | |
66 | Parse the ACK to get required information\r | |
67 | \r | |
68 | @param Dhcp4 The DHCP4 protocol.\r | |
69 | @param Packet Packet waiting for parse.\r | |
70 | @param DnsServerInfor The required Dns4 server information.\r | |
71 | \r | |
72 | @retval EFI_SUCCESS The DNS information is got from the DHCP ACK.\r | |
73 | @retval EFI_NO_MAPPING DHCP failed to acquire address and other information.\r | |
74 | @retval EFI_DEVICE_ERROR Other errors as indicated.\r | |
75 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
76 | \r | |
77 | **/\r | |
78 | EFI_STATUS\r | |
79 | ParseDhcp4Ack (\r | |
80 | IN EFI_DHCP4_PROTOCOL *Dhcp4,\r | |
81 | IN EFI_DHCP4_PACKET *Packet,\r | |
82 | IN DNS4_SERVER_INFOR *DnsServerInfor\r | |
83 | )\r | |
84 | {\r | |
85 | EFI_STATUS Status;\r | |
86 | UINT32 OptionCount;\r | |
87 | EFI_DHCP4_PACKET_OPTION **OptionList;\r | |
88 | UINT32 ServerCount;\r | |
89 | EFI_IPv4_ADDRESS *ServerList;\r | |
90 | UINT32 Index;\r | |
91 | UINT32 Count;\r | |
92 | \r | |
93 | ServerCount = 0;\r | |
94 | ServerList = NULL;\r | |
95 | \r | |
96 | OptionCount = 0;\r | |
97 | OptionList = NULL;\r | |
98 | \r | |
99 | Status = Dhcp4->Parse (Dhcp4, Packet, &OptionCount, OptionList);\r | |
100 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
101 | return EFI_DEVICE_ERROR;\r | |
102 | }\r | |
103 | \r | |
104 | OptionList = AllocatePool (OptionCount * sizeof (EFI_DHCP4_PACKET_OPTION *));\r | |
105 | if (OptionList == NULL) {\r | |
106 | return EFI_OUT_OF_RESOURCES;\r | |
107 | }\r | |
108 | \r | |
109 | Status = Dhcp4->Parse (Dhcp4, Packet, &OptionCount, OptionList);\r | |
110 | if (EFI_ERROR (Status)) {\r | |
111 | gBS->FreePool (OptionList);\r | |
112 | return EFI_DEVICE_ERROR;\r | |
113 | }\r | |
114 | \r | |
115 | Status = EFI_NOT_FOUND;\r | |
116 | \r | |
117 | for (Index = 0; Index < OptionCount; Index++) {\r | |
118 | //\r | |
119 | // Get DNS server addresses\r | |
120 | //\r | |
121 | if (OptionList[Index]->OpCode == DHCP4_TAG_DNS_SERVER) {\r | |
122 | \r | |
123 | if (((OptionList[Index]->Length & 0x3) != 0) || (OptionList[Index]->Length == 0)) {\r | |
124 | Status = EFI_DEVICE_ERROR;\r | |
125 | break;\r | |
126 | }\r | |
127 | \r | |
128 | ServerCount = OptionList[Index]->Length/4;\r | |
129 | ServerList = AllocatePool (ServerCount * sizeof (EFI_IPv4_ADDRESS));\r | |
130 | if (ServerList == NULL) {\r | |
131 | return EFI_OUT_OF_RESOURCES;\r | |
132 | }\r | |
133 | \r | |
134 | for(Count=0; Count < ServerCount; Count++){\r | |
135 | CopyMem (ServerList + Count, &OptionList[Index]->Data[4 * Count], sizeof (EFI_IPv4_ADDRESS));\r | |
136 | }\r | |
137 | \r | |
138 | *(DnsServerInfor->ServerCount) = ServerCount;\r | |
139 | DnsServerInfor->ServerList = ServerList;\r | |
140 | \r | |
141 | Status = EFI_SUCCESS;\r | |
142 | }\r | |
143 | }\r | |
144 | \r | |
145 | gBS->FreePool (OptionList);\r | |
f75a7f56 | 146 | \r |
99c048ef | 147 | return Status;\r |
148 | }\r | |
149 | \r | |
150 | /**\r | |
f75a7f56 | 151 | EFI_DHCP6_INFO_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol\r |
99c048ef | 152 | instance to intercept events that occurs in the DHCPv6 Information Request\r |
153 | exchange process.\r | |
154 | \r | |
f75a7f56 | 155 | @param This Pointer to the EFI_DHCP6_PROTOCOL instance that\r |
99c048ef | 156 | is used to configure this callback function.\r |
157 | @param Context Pointer to the context that is initialized in\r | |
158 | the EFI_DHCP6_PROTOCOL.InfoRequest().\r | |
159 | @param Packet Pointer to Reply packet that has been received.\r | |
160 | The EFI DHCPv6 Protocol instance is responsible\r | |
161 | for freeing the buffer.\r | |
162 | \r | |
163 | @retval EFI_SUCCESS The DNS information is got from the DHCP ACK.\r | |
164 | @retval EFI_DEVICE_ERROR Other errors as indicated.\r | |
165 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
166 | **/\r | |
167 | EFI_STATUS\r | |
168 | EFIAPI\r | |
169 | ParseDhcp6Ack (\r | |
170 | IN EFI_DHCP6_PROTOCOL *This,\r | |
171 | IN VOID *Context,\r | |
172 | IN EFI_DHCP6_PACKET *Packet\r | |
173 | )\r | |
174 | {\r | |
175 | EFI_STATUS Status;\r | |
176 | UINT32 OptionCount;\r | |
177 | EFI_DHCP6_PACKET_OPTION **OptionList;\r | |
178 | DNS6_SERVER_INFOR *DnsServerInfor;\r | |
179 | UINT32 ServerCount;\r | |
180 | EFI_IPv6_ADDRESS *ServerList;\r | |
181 | UINT32 Index;\r | |
182 | UINT32 Count;\r | |
f75a7f56 | 183 | \r |
99c048ef | 184 | OptionCount = 0;\r |
185 | ServerCount = 0;\r | |
186 | ServerList = NULL;\r | |
f75a7f56 | 187 | \r |
99c048ef | 188 | Status = This->Parse (This, Packet, &OptionCount, NULL);\r |
189 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
190 | return EFI_DEVICE_ERROR;\r | |
191 | }\r | |
192 | \r | |
193 | OptionList = AllocateZeroPool (OptionCount * sizeof (EFI_DHCP6_PACKET_OPTION *));\r | |
194 | if (OptionList == NULL) {\r | |
195 | return EFI_OUT_OF_RESOURCES;\r | |
196 | }\r | |
197 | \r | |
198 | Status = This->Parse (This, Packet, &OptionCount, OptionList);\r | |
199 | if (EFI_ERROR (Status)) {\r | |
200 | gBS->FreePool (OptionList);\r | |
201 | return EFI_DEVICE_ERROR;\r | |
202 | }\r | |
f75a7f56 | 203 | \r |
99c048ef | 204 | DnsServerInfor = (DNS6_SERVER_INFOR *) Context;\r |
205 | \r | |
206 | for (Index = 0; Index < OptionCount; Index++) {\r | |
207 | OptionList[Index]->OpCode = NTOHS (OptionList[Index]->OpCode);\r | |
208 | OptionList[Index]->OpLen = NTOHS (OptionList[Index]->OpLen);\r | |
209 | \r | |
210 | //\r | |
211 | // Get DNS server addresses from this reply packet.\r | |
212 | //\r | |
213 | if (OptionList[Index]->OpCode == DHCP6_TAG_DNS_SERVER) {\r | |
214 | \r | |
215 | if (((OptionList[Index]->OpLen & 0xf) != 0) || (OptionList[Index]->OpLen == 0)) {\r | |
216 | Status = EFI_DEVICE_ERROR;\r | |
217 | gBS->FreePool (OptionList);\r | |
218 | return Status;\r | |
219 | }\r | |
f75a7f56 | 220 | \r |
99c048ef | 221 | ServerCount = OptionList[Index]->OpLen/16;\r |
222 | ServerList = AllocatePool (ServerCount * sizeof (EFI_IPv6_ADDRESS));\r | |
223 | if (ServerList == NULL) {\r | |
224 | gBS->FreePool (OptionList);\r | |
225 | return EFI_OUT_OF_RESOURCES;\r | |
226 | }\r | |
227 | \r | |
228 | for(Count=0; Count < ServerCount; Count++){\r | |
229 | CopyMem (ServerList + Count, &OptionList[Index]->Data[16 * Count], sizeof (EFI_IPv6_ADDRESS));\r | |
230 | }\r | |
231 | \r | |
232 | *(DnsServerInfor->ServerCount) = ServerCount;\r | |
233 | DnsServerInfor->ServerList = ServerList;\r | |
234 | }\r | |
235 | }\r | |
236 | \r | |
237 | gBS->FreePool (OptionList);\r | |
f75a7f56 | 238 | \r |
99c048ef | 239 | return Status;\r |
240 | \r | |
241 | }\r | |
242 | \r | |
243 | /**\r | |
244 | Parse the DHCP ACK to get Dns4 server information.\r | |
245 | \r | |
246 | @param Instance The DNS instance.\r | |
247 | @param DnsServerCount Retrieved Dns4 server Ip count.\r | |
248 | @param DnsServerList Retrieved Dns4 server Ip list.\r | |
249 | \r | |
250 | @retval EFI_SUCCESS The Dns4 information is got from the DHCP ACK.\r | |
251 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
252 | @retval EFI_NO_MEDIA There was a media error.\r | |
253 | @retval Others Other errors as indicated.\r | |
254 | \r | |
255 | **/\r | |
256 | EFI_STATUS\r | |
257 | GetDns4ServerFromDhcp4 (\r | |
258 | IN DNS_INSTANCE *Instance,\r | |
259 | OUT UINT32 *DnsServerCount,\r | |
260 | OUT EFI_IPv4_ADDRESS **DnsServerList\r | |
261 | )\r | |
262 | {\r | |
263 | EFI_STATUS Status;\r | |
264 | EFI_HANDLE Image;\r | |
265 | EFI_HANDLE Controller;\r | |
152f2d5e | 266 | EFI_STATUS MediaStatus;\r |
f75a7f56 | 267 | EFI_HANDLE MnpChildHandle;\r |
99c048ef | 268 | EFI_MANAGED_NETWORK_PROTOCOL *Mnp;\r |
269 | EFI_MANAGED_NETWORK_CONFIG_DATA MnpConfigData;\r | |
f75a7f56 | 270 | EFI_HANDLE Dhcp4Handle;\r |
99c048ef | 271 | EFI_DHCP4_PROTOCOL *Dhcp4;\r |
272 | EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;\r | |
273 | UINTN DataSize;\r | |
274 | VOID *Data;\r | |
275 | EFI_IP4_CONFIG2_INTERFACE_INFO *InterfaceInfo;\r | |
276 | EFI_DHCP4_PACKET SeedPacket;\r | |
277 | EFI_DHCP4_PACKET_OPTION *ParaList[2];\r | |
278 | DNS4_SERVER_INFOR DnsServerInfor;\r | |
279 | \r | |
280 | EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;\r | |
281 | BOOLEAN IsDone;\r | |
282 | UINTN Index;\r | |
f75a7f56 | 283 | \r |
99c048ef | 284 | Image = Instance->Service->ImageHandle;\r |
285 | Controller = Instance->Service->ControllerHandle;\r | |
286 | \r | |
287 | MnpChildHandle = NULL;\r | |
288 | Mnp = NULL;\r | |
f75a7f56 | 289 | \r |
99c048ef | 290 | Dhcp4Handle = NULL;\r |
291 | Dhcp4 = NULL;\r | |
292 | \r | |
293 | Ip4Config2 = NULL;\r | |
294 | DataSize = 0;\r | |
295 | Data = NULL;\r | |
296 | InterfaceInfo = NULL;\r | |
297 | \r | |
3fd7bd08 | 298 | ZeroMem ((UINT8 *) ParaList, sizeof (ParaList));\r |
299 | \r | |
99c048ef | 300 | ZeroMem (&MnpConfigData, sizeof (EFI_MANAGED_NETWORK_CONFIG_DATA));\r |
f75a7f56 | 301 | \r |
99c048ef | 302 | ZeroMem (&DnsServerInfor, sizeof (DNS4_SERVER_INFOR));\r |
f75a7f56 | 303 | \r |
99c048ef | 304 | ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));\r |
f75a7f56 | 305 | \r |
99c048ef | 306 | DnsServerInfor.ServerCount = DnsServerCount;\r |
307 | \r | |
308 | IsDone = FALSE;\r | |
309 | \r | |
310 | //\r | |
311 | // Check media.\r | |
312 | //\r | |
152f2d5e | 313 | MediaStatus = EFI_SUCCESS;\r |
314 | NetLibDetectMediaWaitTimeout (Controller, DNS_CHECK_MEDIA_GET_DHCP_WAITING_TIME, &MediaStatus);\r | |
315 | if (MediaStatus != EFI_SUCCESS) {\r | |
99c048ef | 316 | return EFI_NO_MEDIA;\r |
317 | }\r | |
318 | \r | |
319 | //\r | |
320 | // Create a Mnp child instance, get the protocol and config for it.\r | |
321 | //\r | |
322 | Status = NetLibCreateServiceChild (\r | |
323 | Controller,\r | |
324 | Image,\r | |
325 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
326 | &MnpChildHandle\r | |
327 | );\r | |
328 | if (EFI_ERROR (Status)) {\r | |
329 | return Status;\r | |
330 | }\r | |
331 | \r | |
332 | Status = gBS->OpenProtocol (\r | |
333 | MnpChildHandle,\r | |
334 | &gEfiManagedNetworkProtocolGuid,\r | |
335 | (VOID **) &Mnp,\r | |
336 | Image,\r | |
337 | Controller,\r | |
338 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
339 | );\r | |
340 | if (EFI_ERROR (Status)) {\r | |
341 | goto ON_EXIT;\r | |
342 | }\r | |
f75a7f56 | 343 | \r |
99c048ef | 344 | MnpConfigData.ReceivedQueueTimeoutValue = 0;\r |
345 | MnpConfigData.TransmitQueueTimeoutValue = 0;\r | |
346 | MnpConfigData.ProtocolTypeFilter = IP4_ETHER_PROTO;\r | |
347 | MnpConfigData.EnableUnicastReceive = TRUE;\r | |
348 | MnpConfigData.EnableMulticastReceive = TRUE;\r | |
349 | MnpConfigData.EnableBroadcastReceive = TRUE;\r | |
350 | MnpConfigData.EnablePromiscuousReceive = FALSE;\r | |
351 | MnpConfigData.FlushQueuesOnReset = TRUE;\r | |
352 | MnpConfigData.EnableReceiveTimestamps = FALSE;\r | |
353 | MnpConfigData.DisableBackgroundPolling = FALSE;\r | |
354 | \r | |
355 | Status = Mnp->Configure(Mnp, &MnpConfigData);\r | |
356 | if (EFI_ERROR (Status)) {\r | |
357 | goto ON_EXIT;\r | |
358 | }\r | |
f75a7f56 | 359 | \r |
99c048ef | 360 | //\r |
361 | // Create a DHCP4 child instance and get the protocol.\r | |
362 | //\r | |
363 | Status = NetLibCreateServiceChild (\r | |
364 | Controller,\r | |
365 | Image,\r | |
366 | &gEfiDhcp4ServiceBindingProtocolGuid,\r | |
367 | &Dhcp4Handle\r | |
368 | );\r | |
369 | if (EFI_ERROR (Status)) {\r | |
370 | goto ON_EXIT;\r | |
371 | }\r | |
372 | \r | |
373 | Status = gBS->OpenProtocol (\r | |
374 | Dhcp4Handle,\r | |
375 | &gEfiDhcp4ProtocolGuid,\r | |
376 | (VOID **) &Dhcp4,\r | |
377 | Image,\r | |
378 | Controller,\r | |
379 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
380 | );\r | |
381 | if (EFI_ERROR (Status)) {\r | |
382 | goto ON_EXIT;\r | |
383 | }\r | |
384 | \r | |
385 | //\r | |
386 | // Get Ip4Config2 instance info.\r | |
387 | //\r | |
388 | Status = gBS->HandleProtocol (Controller, &gEfiIp4Config2ProtocolGuid, (VOID **) &Ip4Config2);\r | |
389 | if (EFI_ERROR (Status)) {\r | |
390 | goto ON_EXIT;\r | |
391 | }\r | |
f75a7f56 | 392 | \r |
99c048ef | 393 | Status = Ip4Config2->GetData (Ip4Config2, Ip4Config2DataTypeInterfaceInfo, &DataSize, Data);\r |
394 | if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {\r | |
395 | goto ON_EXIT;\r | |
396 | }\r | |
397 | \r | |
398 | Data = AllocateZeroPool (DataSize);\r | |
399 | if (Data == NULL) {\r | |
400 | Status = EFI_OUT_OF_RESOURCES;\r | |
401 | goto ON_EXIT;\r | |
402 | }\r | |
403 | \r | |
404 | Status = Ip4Config2->GetData (Ip4Config2, Ip4Config2DataTypeInterfaceInfo, &DataSize, Data);\r | |
405 | if (EFI_ERROR (Status)) {\r | |
406 | goto ON_EXIT;\r | |
407 | }\r | |
408 | \r | |
409 | InterfaceInfo = (EFI_IP4_CONFIG2_INTERFACE_INFO *)Data;\r | |
f75a7f56 | 410 | \r |
99c048ef | 411 | //\r |
412 | // Build required Token.\r | |
413 | //\r | |
414 | Status = gBS->CreateEvent (\r | |
415 | EVT_NOTIFY_SIGNAL,\r | |
416 | TPL_NOTIFY,\r | |
417 | DhcpCommonNotify,\r | |
418 | &IsDone,\r | |
419 | &Token.CompletionEvent\r | |
420 | );\r | |
421 | if (EFI_ERROR (Status)) {\r | |
422 | goto ON_EXIT;\r | |
423 | }\r | |
f75a7f56 | 424 | \r |
99c048ef | 425 | SetMem (&Token.RemoteAddress, sizeof (EFI_IPv4_ADDRESS), 0xff);\r |
f75a7f56 | 426 | \r |
99c048ef | 427 | Token.RemotePort = 67;\r |
428 | \r | |
429 | Token.ListenPointCount = 1;\r | |
f75a7f56 | 430 | \r |
99c048ef | 431 | Token.ListenPoints = AllocateZeroPool (Token.ListenPointCount * sizeof (EFI_DHCP4_LISTEN_POINT));\r |
432 | if (Token.ListenPoints == NULL) {\r | |
433 | Status = EFI_OUT_OF_RESOURCES;\r | |
434 | goto ON_EXIT;\r | |
435 | }\r | |
436 | \r | |
437 | if (Instance->Dns4CfgData.UseDefaultSetting) {\r | |
438 | CopyMem (&(Token.ListenPoints[0].ListenAddress), &(InterfaceInfo->StationAddress), sizeof (EFI_IPv4_ADDRESS));\r | |
439 | CopyMem (&(Token.ListenPoints[0].SubnetMask), &(InterfaceInfo->SubnetMask), sizeof (EFI_IPv4_ADDRESS));\r | |
440 | } else {\r | |
441 | CopyMem (&(Token.ListenPoints[0].ListenAddress), &(Instance->Dns4CfgData.StationIp), sizeof (EFI_IPv4_ADDRESS));\r | |
442 | CopyMem (&(Token.ListenPoints[0].SubnetMask), &(Instance->Dns4CfgData.SubnetMask), sizeof (EFI_IPv4_ADDRESS));\r | |
443 | }\r | |
f75a7f56 | 444 | \r |
99c048ef | 445 | Token.ListenPoints[0].ListenPort = 68;\r |
f75a7f56 | 446 | \r |
99c048ef | 447 | Token.TimeoutValue = DNS_TIME_TO_GETMAP;\r |
448 | \r | |
449 | DnsInitSeedPacket (&SeedPacket, InterfaceInfo);\r | |
450 | \r | |
451 | ParaList[0] = AllocateZeroPool (sizeof (EFI_DHCP4_PACKET_OPTION));\r | |
452 | if (ParaList[0] == NULL) {\r | |
453 | Status = EFI_OUT_OF_RESOURCES;\r | |
454 | goto ON_EXIT;\r | |
455 | }\r | |
f75a7f56 | 456 | \r |
99c048ef | 457 | ParaList[0]->OpCode = DHCP4_TAG_TYPE;\r |
458 | ParaList[0]->Length = 1;\r | |
b61fda11 | 459 | ParaList[0]->Data[0] = DHCP4_MSG_REQUEST;\r |
f75a7f56 | 460 | \r |
99c048ef | 461 | ParaList[1] = AllocateZeroPool (sizeof (EFI_DHCP4_PACKET_OPTION));\r |
462 | if (ParaList[1] == NULL) {\r | |
463 | Status = EFI_OUT_OF_RESOURCES;\r | |
464 | goto ON_EXIT;\r | |
465 | }\r | |
f75a7f56 | 466 | \r |
99c048ef | 467 | ParaList[1]->OpCode = DHCP4_TAG_PARA_LIST;\r |
468 | ParaList[1]->Length = 1;\r | |
469 | ParaList[1]->Data[0] = DHCP4_TAG_DNS_SERVER;\r | |
470 | \r | |
f75a7f56 | 471 | Status = Dhcp4->Build (Dhcp4, &SeedPacket, 0, NULL, 2, ParaList, &Token.Packet);\r |
99c048ef | 472 | \r |
473 | Token.Packet->Dhcp4.Header.Xid = HTONL(NET_RANDOM (NetRandomInitSeed ()));\r | |
f75a7f56 | 474 | \r |
99c048ef | 475 | Token.Packet->Dhcp4.Header.Reserved = HTONS ((UINT16)0x8000);\r |
f75a7f56 | 476 | \r |
99c048ef | 477 | if (Instance->Dns4CfgData.UseDefaultSetting) {\r |
478 | CopyMem (&(Token.Packet->Dhcp4.Header.ClientAddr), &(InterfaceInfo->StationAddress), sizeof (EFI_IPv4_ADDRESS));\r | |
479 | } else {\r | |
480 | CopyMem (&(Token.Packet->Dhcp4.Header.ClientAddr), &(Instance->Dns4CfgData.StationIp), sizeof (EFI_IPv4_ADDRESS));\r | |
481 | }\r | |
f75a7f56 LG |
482 | \r |
483 | CopyMem (Token.Packet->Dhcp4.Header.ClientHwAddr, &(InterfaceInfo->HwAddress), InterfaceInfo->HwAddressSize);\r | |
484 | \r | |
99c048ef | 485 | Token.Packet->Dhcp4.Header.HwAddrLen = (UINT8)(InterfaceInfo->HwAddressSize);\r |
486 | \r | |
487 | //\r | |
488 | // TransmitReceive Token\r | |
489 | //\r | |
490 | Status = Dhcp4->TransmitReceive (Dhcp4, &Token);\r | |
491 | if (EFI_ERROR (Status)) {\r | |
492 | goto ON_EXIT;\r | |
493 | }\r | |
494 | \r | |
495 | //\r | |
496 | // Poll the packet\r | |
497 | //\r | |
498 | do {\r | |
499 | Status = Mnp->Poll (Mnp);\r | |
500 | } while (!IsDone);\r | |
f75a7f56 | 501 | \r |
99c048ef | 502 | //\r |
503 | // Parse the ACK to get required information if received done.\r | |
504 | //\r | |
505 | if (IsDone && !EFI_ERROR (Token.Status)) {\r | |
506 | for (Index = 0; Index < Token.ResponseCount; Index++) {\r | |
507 | Status = ParseDhcp4Ack (Dhcp4, &Token.ResponseList[Index], &DnsServerInfor);\r | |
508 | if (!EFI_ERROR (Status)) {\r | |
509 | break;\r | |
510 | }\r | |
511 | }\r | |
512 | \r | |
513 | *DnsServerList = DnsServerInfor.ServerList;\r | |
514 | } else {\r | |
515 | Status = Token.Status;\r | |
516 | }\r | |
f75a7f56 | 517 | \r |
99c048ef | 518 | ON_EXIT:\r |
519 | \r | |
520 | if (Data != NULL) {\r | |
521 | FreePool (Data);\r | |
522 | }\r | |
523 | \r | |
524 | for (Index = 0; Index < 2; Index++) {\r | |
525 | if (ParaList[Index] != NULL) {\r | |
526 | FreePool (ParaList[Index]);\r | |
527 | }\r | |
528 | }\r | |
529 | \r | |
530 | if (Token.ListenPoints) {\r | |
531 | FreePool (Token.ListenPoints);\r | |
532 | }\r | |
533 | \r | |
534 | if (Token.Packet) {\r | |
535 | FreePool (Token.Packet);\r | |
536 | }\r | |
f75a7f56 | 537 | \r |
99c048ef | 538 | if (Token.ResponseList != NULL) {\r |
539 | FreePool (Token.ResponseList);\r | |
540 | }\r | |
f75a7f56 | 541 | \r |
99c048ef | 542 | if (Token.CompletionEvent != NULL) {\r |
543 | gBS->CloseEvent (Token.CompletionEvent);\r | |
544 | }\r | |
f75a7f56 | 545 | \r |
99c048ef | 546 | if (Dhcp4 != NULL) {\r |
547 | Dhcp4->Stop (Dhcp4);\r | |
548 | Dhcp4->Configure (Dhcp4, NULL);\r | |
549 | \r | |
550 | gBS->CloseProtocol (\r | |
551 | Dhcp4Handle,\r | |
552 | &gEfiDhcp4ProtocolGuid,\r | |
553 | Image,\r | |
554 | Controller\r | |
555 | );\r | |
556 | }\r | |
f75a7f56 | 557 | \r |
99c048ef | 558 | if (Dhcp4Handle != NULL) {\r |
559 | NetLibDestroyServiceChild (\r | |
560 | Controller,\r | |
561 | Image,\r | |
562 | &gEfiDhcp4ServiceBindingProtocolGuid,\r | |
563 | Dhcp4Handle\r | |
564 | );\r | |
565 | }\r | |
566 | \r | |
567 | if (Mnp != NULL) {\r | |
568 | Mnp->Configure (Mnp, NULL);\r | |
569 | \r | |
570 | gBS->CloseProtocol (\r | |
571 | MnpChildHandle,\r | |
572 | &gEfiManagedNetworkProtocolGuid,\r | |
573 | Image,\r | |
574 | Controller\r | |
575 | );\r | |
576 | }\r | |
f75a7f56 | 577 | \r |
99c048ef | 578 | NetLibDestroyServiceChild (\r |
579 | Controller,\r | |
580 | Image,\r | |
581 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
582 | MnpChildHandle\r | |
583 | );\r | |
f75a7f56 | 584 | \r |
99c048ef | 585 | return Status;\r |
586 | }\r | |
587 | \r | |
588 | /**\r | |
589 | Parse the DHCP ACK to get Dns6 server information.\r | |
590 | \r | |
591 | @param Image The handle of the driver image.\r | |
592 | @param Controller The handle of the controller.\r | |
593 | @param DnsServerCount Retrieved Dns6 server Ip count.\r | |
594 | @param DnsServerList Retrieved Dns6 server Ip list.\r | |
595 | \r | |
596 | @retval EFI_SUCCESS The Dns6 information is got from the DHCP ACK.\r | |
597 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
598 | @retval EFI_NO_MEDIA There was a media error.\r | |
599 | @retval Others Other errors as indicated.\r | |
600 | \r | |
601 | **/\r | |
602 | EFI_STATUS\r | |
603 | GetDns6ServerFromDhcp6 (\r | |
604 | IN EFI_HANDLE Image,\r | |
605 | IN EFI_HANDLE Controller,\r | |
606 | OUT UINT32 *DnsServerCount,\r | |
607 | OUT EFI_IPv6_ADDRESS **DnsServerList\r | |
608 | )\r | |
609 | {\r | |
610 | EFI_HANDLE Dhcp6Handle;\r | |
611 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
612 | EFI_STATUS Status;\r | |
613 | EFI_STATUS TimerStatus;\r | |
614 | EFI_DHCP6_PACKET_OPTION *Oro;\r | |
615 | EFI_DHCP6_RETRANSMISSION InfoReqReXmit;\r | |
616 | EFI_EVENT Timer;\r | |
152f2d5e | 617 | EFI_STATUS MediaStatus;\r |
99c048ef | 618 | DNS6_SERVER_INFOR DnsServerInfor;\r |
619 | \r | |
620 | Dhcp6Handle = NULL;\r | |
621 | Dhcp6 = NULL;\r | |
622 | Oro = NULL;\r | |
623 | Timer = NULL;\r | |
624 | \r | |
625 | ZeroMem (&DnsServerInfor, sizeof (DNS6_SERVER_INFOR));\r | |
626 | \r | |
627 | DnsServerInfor.ServerCount = DnsServerCount;\r | |
628 | \r | |
629 | //\r | |
630 | // Check media status before doing DHCP.\r | |
631 | //\r | |
152f2d5e | 632 | MediaStatus = EFI_SUCCESS;\r |
633 | NetLibDetectMediaWaitTimeout (Controller, DNS_CHECK_MEDIA_GET_DHCP_WAITING_TIME, &MediaStatus);\r | |
634 | if (MediaStatus != EFI_SUCCESS) {\r | |
99c048ef | 635 | return EFI_NO_MEDIA;\r |
636 | }\r | |
637 | \r | |
638 | //\r | |
639 | // Create a DHCP6 child instance and get the protocol.\r | |
640 | //\r | |
641 | Status = NetLibCreateServiceChild (\r | |
642 | Controller,\r | |
643 | Image,\r | |
644 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
645 | &Dhcp6Handle\r | |
646 | );\r | |
647 | if (EFI_ERROR (Status)) {\r | |
648 | return Status;\r | |
649 | }\r | |
650 | \r | |
651 | Status = gBS->OpenProtocol (\r | |
652 | Dhcp6Handle,\r | |
653 | &gEfiDhcp6ProtocolGuid,\r | |
654 | (VOID **) &Dhcp6,\r | |
655 | Image,\r | |
656 | Controller,\r | |
657 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
658 | );\r | |
659 | if (EFI_ERROR (Status)) {\r | |
660 | goto ON_EXIT;\r | |
661 | }\r | |
662 | \r | |
663 | Oro = AllocateZeroPool (sizeof (EFI_DHCP6_PACKET_OPTION) + 1);\r | |
664 | if (Oro == NULL) {\r | |
665 | Status = EFI_OUT_OF_RESOURCES;\r | |
666 | goto ON_EXIT;\r | |
667 | }\r | |
668 | \r | |
669 | //\r | |
670 | // Ask the server to reply with DNS options.\r | |
671 | // All members in EFI_DHCP6_PACKET_OPTION are in network order.\r | |
672 | //\r | |
673 | Oro->OpCode = HTONS (DHCP6_TAG_DNS_REQUEST);\r | |
674 | Oro->OpLen = HTONS (2);\r | |
675 | Oro->Data[1] = DHCP6_TAG_DNS_SERVER;\r | |
676 | \r | |
677 | InfoReqReXmit.Irt = 4;\r | |
678 | InfoReqReXmit.Mrc = 1;\r | |
679 | InfoReqReXmit.Mrt = 10;\r | |
680 | InfoReqReXmit.Mrd = 30;\r | |
681 | \r | |
682 | Status = Dhcp6->InfoRequest (\r | |
683 | Dhcp6,\r | |
684 | TRUE,\r | |
685 | Oro,\r | |
686 | 0,\r | |
687 | NULL,\r | |
688 | &InfoReqReXmit,\r | |
689 | NULL,\r | |
690 | ParseDhcp6Ack,\r | |
691 | &DnsServerInfor\r | |
692 | );\r | |
693 | if (Status == EFI_NO_MAPPING) {\r | |
694 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
695 | if (EFI_ERROR (Status)) {\r | |
696 | goto ON_EXIT;\r | |
697 | }\r | |
698 | \r | |
699 | Status = gBS->SetTimer (\r | |
700 | Timer,\r | |
701 | TimerRelative,\r | |
702 | DNS_TIME_TO_GETMAP * TICKS_PER_SECOND\r | |
703 | );\r | |
704 | \r | |
705 | if (EFI_ERROR (Status)) {\r | |
706 | goto ON_EXIT;\r | |
707 | }\r | |
708 | \r | |
709 | do {\r | |
710 | TimerStatus = gBS->CheckEvent (Timer);\r | |
711 | if (!EFI_ERROR (TimerStatus)) {\r | |
712 | Status = Dhcp6->InfoRequest (\r | |
713 | Dhcp6,\r | |
714 | TRUE,\r | |
715 | Oro,\r | |
716 | 0,\r | |
717 | NULL,\r | |
718 | &InfoReqReXmit,\r | |
719 | NULL,\r | |
720 | ParseDhcp6Ack,\r | |
721 | &DnsServerInfor\r | |
722 | );\r | |
723 | }\r | |
724 | } while (TimerStatus == EFI_NOT_READY);\r | |
725 | }\r | |
f75a7f56 | 726 | \r |
99c048ef | 727 | *DnsServerList = DnsServerInfor.ServerList;\r |
728 | \r | |
729 | ON_EXIT:\r | |
730 | \r | |
731 | if (Oro != NULL) {\r | |
732 | FreePool (Oro);\r | |
f75a7f56 | 733 | }\r |
99c048ef | 734 | \r |
735 | if (Timer != NULL) {\r | |
736 | gBS->CloseEvent (Timer);\r | |
737 | }\r | |
738 | \r | |
739 | if (Dhcp6 != NULL) {\r | |
740 | gBS->CloseProtocol (\r | |
741 | Dhcp6Handle,\r | |
742 | &gEfiDhcp6ProtocolGuid,\r | |
743 | Image,\r | |
744 | Controller\r | |
745 | );\r | |
746 | }\r | |
747 | \r | |
748 | NetLibDestroyServiceChild (\r | |
749 | Controller,\r | |
750 | Image,\r | |
751 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
752 | Dhcp6Handle\r | |
753 | );\r | |
754 | \r | |
755 | return Status;\r | |
f75a7f56 | 756 | \r |
99c048ef | 757 | }\r |
758 | \r |