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99c048ef | 1 | /** @file\r |
2 | Functions implementation related with DHCPv4/v6 for DNS driver.\r | |
3 | \r | |
b61fda11 | 4 | Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>\r |
d36e65a0 JW |
5 | This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
99c048ef | 12 | \r |
13 | **/\r | |
14 | \r | |
15 | #include "DnsImpl.h"\r | |
16 | \r | |
17 | /**\r | |
18 | This function initialize the DHCP4 message instance.\r | |
19 | \r | |
20 | This function will pad each item of dhcp4 message packet.\r | |
21 | \r | |
22 | @param Seed Pointer to the message instance of the DHCP4 packet.\r | |
23 | @param InterfaceInfo Pointer to the EFI_IP4_CONFIG2_INTERFACE_INFO instance.\r | |
24 | \r | |
25 | **/\r | |
26 | VOID\r | |
27 | DnsInitSeedPacket (\r | |
28 | OUT EFI_DHCP4_PACKET *Seed,\r | |
29 | IN EFI_IP4_CONFIG2_INTERFACE_INFO *InterfaceInfo\r | |
30 | )\r | |
31 | {\r | |
32 | EFI_DHCP4_HEADER *Header;\r | |
33 | \r | |
34 | //\r | |
35 | // Get IfType and HwAddressSize from SNP mode data.\r | |
36 | //\r | |
37 | Seed->Size = sizeof (EFI_DHCP4_PACKET);\r | |
38 | Seed->Length = sizeof (Seed->Dhcp4);\r | |
39 | Header = &Seed->Dhcp4.Header;\r | |
40 | ZeroMem (Header, sizeof (EFI_DHCP4_HEADER));\r | |
41 | Header->OpCode = DHCP4_OPCODE_REQUEST;\r | |
42 | Header->HwType = InterfaceInfo->IfType;\r | |
43 | Header->HwAddrLen = (UINT8) InterfaceInfo->HwAddressSize;\r | |
44 | CopyMem (Header->ClientHwAddr, &(InterfaceInfo->HwAddress), Header->HwAddrLen);\r | |
45 | \r | |
46 | Seed->Dhcp4.Magik = DHCP4_MAGIC;\r | |
47 | Seed->Dhcp4.Option[0] = DHCP4_TAG_EOP;\r | |
48 | }\r | |
49 | \r | |
50 | /**\r | |
51 | The common notify function. \r | |
52 | \r | |
53 | @param[in] Event The event signaled.\r | |
54 | @param[in] Context The context.\r | |
55 | \r | |
56 | **/\r | |
57 | VOID\r | |
58 | EFIAPI\r | |
59 | DhcpCommonNotify (\r | |
60 | IN EFI_EVENT Event,\r | |
61 | IN VOID *Context\r | |
62 | )\r | |
63 | {\r | |
64 | if ((Event == NULL) || (Context == NULL)) {\r | |
65 | return ;\r | |
66 | }\r | |
67 | \r | |
68 | *((BOOLEAN *) Context) = TRUE;\r | |
69 | }\r | |
70 | \r | |
71 | /**\r | |
72 | Parse the ACK to get required information\r | |
73 | \r | |
74 | @param Dhcp4 The DHCP4 protocol.\r | |
75 | @param Packet Packet waiting for parse.\r | |
76 | @param DnsServerInfor The required Dns4 server information.\r | |
77 | \r | |
78 | @retval EFI_SUCCESS The DNS information is got from the DHCP ACK.\r | |
79 | @retval EFI_NO_MAPPING DHCP failed to acquire address and other information.\r | |
80 | @retval EFI_DEVICE_ERROR Other errors as indicated.\r | |
81 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
82 | \r | |
83 | **/\r | |
84 | EFI_STATUS\r | |
85 | ParseDhcp4Ack (\r | |
86 | IN EFI_DHCP4_PROTOCOL *Dhcp4,\r | |
87 | IN EFI_DHCP4_PACKET *Packet,\r | |
88 | IN DNS4_SERVER_INFOR *DnsServerInfor\r | |
89 | )\r | |
90 | {\r | |
91 | EFI_STATUS Status;\r | |
92 | UINT32 OptionCount;\r | |
93 | EFI_DHCP4_PACKET_OPTION **OptionList;\r | |
94 | UINT32 ServerCount;\r | |
95 | EFI_IPv4_ADDRESS *ServerList;\r | |
96 | UINT32 Index;\r | |
97 | UINT32 Count;\r | |
98 | \r | |
99 | ServerCount = 0;\r | |
100 | ServerList = NULL;\r | |
101 | \r | |
102 | OptionCount = 0;\r | |
103 | OptionList = NULL;\r | |
104 | \r | |
105 | Status = Dhcp4->Parse (Dhcp4, Packet, &OptionCount, OptionList);\r | |
106 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
107 | return EFI_DEVICE_ERROR;\r | |
108 | }\r | |
109 | \r | |
110 | OptionList = AllocatePool (OptionCount * sizeof (EFI_DHCP4_PACKET_OPTION *));\r | |
111 | if (OptionList == NULL) {\r | |
112 | return EFI_OUT_OF_RESOURCES;\r | |
113 | }\r | |
114 | \r | |
115 | Status = Dhcp4->Parse (Dhcp4, Packet, &OptionCount, OptionList);\r | |
116 | if (EFI_ERROR (Status)) {\r | |
117 | gBS->FreePool (OptionList);\r | |
118 | return EFI_DEVICE_ERROR;\r | |
119 | }\r | |
120 | \r | |
121 | Status = EFI_NOT_FOUND;\r | |
122 | \r | |
123 | for (Index = 0; Index < OptionCount; Index++) {\r | |
124 | //\r | |
125 | // Get DNS server addresses\r | |
126 | //\r | |
127 | if (OptionList[Index]->OpCode == DHCP4_TAG_DNS_SERVER) {\r | |
128 | \r | |
129 | if (((OptionList[Index]->Length & 0x3) != 0) || (OptionList[Index]->Length == 0)) {\r | |
130 | Status = EFI_DEVICE_ERROR;\r | |
131 | break;\r | |
132 | }\r | |
133 | \r | |
134 | ServerCount = OptionList[Index]->Length/4;\r | |
135 | ServerList = AllocatePool (ServerCount * sizeof (EFI_IPv4_ADDRESS));\r | |
136 | if (ServerList == NULL) {\r | |
137 | return EFI_OUT_OF_RESOURCES;\r | |
138 | }\r | |
139 | \r | |
140 | for(Count=0; Count < ServerCount; Count++){\r | |
141 | CopyMem (ServerList + Count, &OptionList[Index]->Data[4 * Count], sizeof (EFI_IPv4_ADDRESS));\r | |
142 | }\r | |
143 | \r | |
144 | *(DnsServerInfor->ServerCount) = ServerCount;\r | |
145 | DnsServerInfor->ServerList = ServerList;\r | |
146 | \r | |
147 | Status = EFI_SUCCESS;\r | |
148 | }\r | |
149 | }\r | |
150 | \r | |
151 | gBS->FreePool (OptionList);\r | |
152 | \r | |
153 | return Status;\r | |
154 | }\r | |
155 | \r | |
156 | /**\r | |
157 | EFI_DHCP6_INFO_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol \r | |
158 | instance to intercept events that occurs in the DHCPv6 Information Request\r | |
159 | exchange process.\r | |
160 | \r | |
161 | @param This Pointer to the EFI_DHCP6_PROTOCOL instance that \r | |
162 | is used to configure this callback function.\r | |
163 | @param Context Pointer to the context that is initialized in\r | |
164 | the EFI_DHCP6_PROTOCOL.InfoRequest().\r | |
165 | @param Packet Pointer to Reply packet that has been received.\r | |
166 | The EFI DHCPv6 Protocol instance is responsible\r | |
167 | for freeing the buffer.\r | |
168 | \r | |
169 | @retval EFI_SUCCESS The DNS information is got from the DHCP ACK.\r | |
170 | @retval EFI_DEVICE_ERROR Other errors as indicated.\r | |
171 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
172 | **/\r | |
173 | EFI_STATUS\r | |
174 | EFIAPI\r | |
175 | ParseDhcp6Ack (\r | |
176 | IN EFI_DHCP6_PROTOCOL *This,\r | |
177 | IN VOID *Context,\r | |
178 | IN EFI_DHCP6_PACKET *Packet\r | |
179 | )\r | |
180 | {\r | |
181 | EFI_STATUS Status;\r | |
182 | UINT32 OptionCount;\r | |
183 | EFI_DHCP6_PACKET_OPTION **OptionList;\r | |
184 | DNS6_SERVER_INFOR *DnsServerInfor;\r | |
185 | UINT32 ServerCount;\r | |
186 | EFI_IPv6_ADDRESS *ServerList;\r | |
187 | UINT32 Index;\r | |
188 | UINT32 Count;\r | |
189 | \r | |
190 | OptionCount = 0;\r | |
191 | ServerCount = 0;\r | |
192 | ServerList = NULL;\r | |
193 | \r | |
194 | Status = This->Parse (This, Packet, &OptionCount, NULL);\r | |
195 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
196 | return EFI_DEVICE_ERROR;\r | |
197 | }\r | |
198 | \r | |
199 | OptionList = AllocateZeroPool (OptionCount * sizeof (EFI_DHCP6_PACKET_OPTION *));\r | |
200 | if (OptionList == NULL) {\r | |
201 | return EFI_OUT_OF_RESOURCES;\r | |
202 | }\r | |
203 | \r | |
204 | Status = This->Parse (This, Packet, &OptionCount, OptionList);\r | |
205 | if (EFI_ERROR (Status)) {\r | |
206 | gBS->FreePool (OptionList);\r | |
207 | return EFI_DEVICE_ERROR;\r | |
208 | }\r | |
209 | \r | |
210 | DnsServerInfor = (DNS6_SERVER_INFOR *) Context;\r | |
211 | \r | |
212 | for (Index = 0; Index < OptionCount; Index++) {\r | |
213 | OptionList[Index]->OpCode = NTOHS (OptionList[Index]->OpCode);\r | |
214 | OptionList[Index]->OpLen = NTOHS (OptionList[Index]->OpLen);\r | |
215 | \r | |
216 | //\r | |
217 | // Get DNS server addresses from this reply packet.\r | |
218 | //\r | |
219 | if (OptionList[Index]->OpCode == DHCP6_TAG_DNS_SERVER) {\r | |
220 | \r | |
221 | if (((OptionList[Index]->OpLen & 0xf) != 0) || (OptionList[Index]->OpLen == 0)) {\r | |
222 | Status = EFI_DEVICE_ERROR;\r | |
223 | gBS->FreePool (OptionList);\r | |
224 | return Status;\r | |
225 | }\r | |
226 | \r | |
227 | ServerCount = OptionList[Index]->OpLen/16;\r | |
228 | ServerList = AllocatePool (ServerCount * sizeof (EFI_IPv6_ADDRESS));\r | |
229 | if (ServerList == NULL) {\r | |
230 | gBS->FreePool (OptionList);\r | |
231 | return EFI_OUT_OF_RESOURCES;\r | |
232 | }\r | |
233 | \r | |
234 | for(Count=0; Count < ServerCount; Count++){\r | |
235 | CopyMem (ServerList + Count, &OptionList[Index]->Data[16 * Count], sizeof (EFI_IPv6_ADDRESS));\r | |
236 | }\r | |
237 | \r | |
238 | *(DnsServerInfor->ServerCount) = ServerCount;\r | |
239 | DnsServerInfor->ServerList = ServerList;\r | |
240 | }\r | |
241 | }\r | |
242 | \r | |
243 | gBS->FreePool (OptionList);\r | |
244 | \r | |
245 | return Status;\r | |
246 | \r | |
247 | }\r | |
248 | \r | |
249 | /**\r | |
250 | Parse the DHCP ACK to get Dns4 server information.\r | |
251 | \r | |
252 | @param Instance The DNS instance.\r | |
253 | @param DnsServerCount Retrieved Dns4 server Ip count.\r | |
254 | @param DnsServerList Retrieved Dns4 server Ip list.\r | |
255 | \r | |
256 | @retval EFI_SUCCESS The Dns4 information is got from the DHCP ACK.\r | |
257 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
258 | @retval EFI_NO_MEDIA There was a media error.\r | |
259 | @retval Others Other errors as indicated.\r | |
260 | \r | |
261 | **/\r | |
262 | EFI_STATUS\r | |
263 | GetDns4ServerFromDhcp4 (\r | |
264 | IN DNS_INSTANCE *Instance,\r | |
265 | OUT UINT32 *DnsServerCount,\r | |
266 | OUT EFI_IPv4_ADDRESS **DnsServerList\r | |
267 | )\r | |
268 | {\r | |
269 | EFI_STATUS Status;\r | |
270 | EFI_HANDLE Image;\r | |
271 | EFI_HANDLE Controller;\r | |
152f2d5e | 272 | EFI_STATUS MediaStatus;\r |
99c048ef | 273 | EFI_HANDLE MnpChildHandle; \r |
274 | EFI_MANAGED_NETWORK_PROTOCOL *Mnp;\r | |
275 | EFI_MANAGED_NETWORK_CONFIG_DATA MnpConfigData;\r | |
276 | EFI_HANDLE Dhcp4Handle; \r | |
277 | EFI_DHCP4_PROTOCOL *Dhcp4;\r | |
278 | EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;\r | |
279 | UINTN DataSize;\r | |
280 | VOID *Data;\r | |
281 | EFI_IP4_CONFIG2_INTERFACE_INFO *InterfaceInfo;\r | |
282 | EFI_DHCP4_PACKET SeedPacket;\r | |
283 | EFI_DHCP4_PACKET_OPTION *ParaList[2];\r | |
284 | DNS4_SERVER_INFOR DnsServerInfor;\r | |
285 | \r | |
286 | EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;\r | |
287 | BOOLEAN IsDone;\r | |
288 | UINTN Index;\r | |
289 | \r | |
290 | Image = Instance->Service->ImageHandle;\r | |
291 | Controller = Instance->Service->ControllerHandle;\r | |
292 | \r | |
293 | MnpChildHandle = NULL;\r | |
294 | Mnp = NULL;\r | |
295 | \r | |
296 | Dhcp4Handle = NULL;\r | |
297 | Dhcp4 = NULL;\r | |
298 | \r | |
299 | Ip4Config2 = NULL;\r | |
300 | DataSize = 0;\r | |
301 | Data = NULL;\r | |
302 | InterfaceInfo = NULL;\r | |
303 | \r | |
3fd7bd08 | 304 | ZeroMem ((UINT8 *) ParaList, sizeof (ParaList));\r |
305 | \r | |
99c048ef | 306 | ZeroMem (&MnpConfigData, sizeof (EFI_MANAGED_NETWORK_CONFIG_DATA));\r |
307 | \r | |
308 | ZeroMem (&DnsServerInfor, sizeof (DNS4_SERVER_INFOR));\r | |
309 | \r | |
310 | ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));\r | |
311 | \r | |
312 | DnsServerInfor.ServerCount = DnsServerCount;\r | |
313 | \r | |
314 | IsDone = FALSE;\r | |
315 | \r | |
316 | //\r | |
317 | // Check media.\r | |
318 | //\r | |
152f2d5e | 319 | MediaStatus = EFI_SUCCESS;\r |
320 | NetLibDetectMediaWaitTimeout (Controller, DNS_CHECK_MEDIA_GET_DHCP_WAITING_TIME, &MediaStatus);\r | |
321 | if (MediaStatus != EFI_SUCCESS) {\r | |
99c048ef | 322 | return EFI_NO_MEDIA;\r |
323 | }\r | |
324 | \r | |
325 | //\r | |
326 | // Create a Mnp child instance, get the protocol and config for it.\r | |
327 | //\r | |
328 | Status = NetLibCreateServiceChild (\r | |
329 | Controller,\r | |
330 | Image,\r | |
331 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
332 | &MnpChildHandle\r | |
333 | );\r | |
334 | if (EFI_ERROR (Status)) {\r | |
335 | return Status;\r | |
336 | }\r | |
337 | \r | |
338 | Status = gBS->OpenProtocol (\r | |
339 | MnpChildHandle,\r | |
340 | &gEfiManagedNetworkProtocolGuid,\r | |
341 | (VOID **) &Mnp,\r | |
342 | Image,\r | |
343 | Controller,\r | |
344 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
345 | );\r | |
346 | if (EFI_ERROR (Status)) {\r | |
347 | goto ON_EXIT;\r | |
348 | }\r | |
349 | \r | |
350 | MnpConfigData.ReceivedQueueTimeoutValue = 0;\r | |
351 | MnpConfigData.TransmitQueueTimeoutValue = 0;\r | |
352 | MnpConfigData.ProtocolTypeFilter = IP4_ETHER_PROTO;\r | |
353 | MnpConfigData.EnableUnicastReceive = TRUE;\r | |
354 | MnpConfigData.EnableMulticastReceive = TRUE;\r | |
355 | MnpConfigData.EnableBroadcastReceive = TRUE;\r | |
356 | MnpConfigData.EnablePromiscuousReceive = FALSE;\r | |
357 | MnpConfigData.FlushQueuesOnReset = TRUE;\r | |
358 | MnpConfigData.EnableReceiveTimestamps = FALSE;\r | |
359 | MnpConfigData.DisableBackgroundPolling = FALSE;\r | |
360 | \r | |
361 | Status = Mnp->Configure(Mnp, &MnpConfigData);\r | |
362 | if (EFI_ERROR (Status)) {\r | |
363 | goto ON_EXIT;\r | |
364 | }\r | |
365 | \r | |
366 | //\r | |
367 | // Create a DHCP4 child instance and get the protocol.\r | |
368 | //\r | |
369 | Status = NetLibCreateServiceChild (\r | |
370 | Controller,\r | |
371 | Image,\r | |
372 | &gEfiDhcp4ServiceBindingProtocolGuid,\r | |
373 | &Dhcp4Handle\r | |
374 | );\r | |
375 | if (EFI_ERROR (Status)) {\r | |
376 | goto ON_EXIT;\r | |
377 | }\r | |
378 | \r | |
379 | Status = gBS->OpenProtocol (\r | |
380 | Dhcp4Handle,\r | |
381 | &gEfiDhcp4ProtocolGuid,\r | |
382 | (VOID **) &Dhcp4,\r | |
383 | Image,\r | |
384 | Controller,\r | |
385 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
386 | );\r | |
387 | if (EFI_ERROR (Status)) {\r | |
388 | goto ON_EXIT;\r | |
389 | }\r | |
390 | \r | |
391 | //\r | |
392 | // Get Ip4Config2 instance info.\r | |
393 | //\r | |
394 | Status = gBS->HandleProtocol (Controller, &gEfiIp4Config2ProtocolGuid, (VOID **) &Ip4Config2);\r | |
395 | if (EFI_ERROR (Status)) {\r | |
396 | goto ON_EXIT;\r | |
397 | }\r | |
398 | \r | |
399 | Status = Ip4Config2->GetData (Ip4Config2, Ip4Config2DataTypeInterfaceInfo, &DataSize, Data);\r | |
400 | if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {\r | |
401 | goto ON_EXIT;\r | |
402 | }\r | |
403 | \r | |
404 | Data = AllocateZeroPool (DataSize);\r | |
405 | if (Data == NULL) {\r | |
406 | Status = EFI_OUT_OF_RESOURCES;\r | |
407 | goto ON_EXIT;\r | |
408 | }\r | |
409 | \r | |
410 | Status = Ip4Config2->GetData (Ip4Config2, Ip4Config2DataTypeInterfaceInfo, &DataSize, Data);\r | |
411 | if (EFI_ERROR (Status)) {\r | |
412 | goto ON_EXIT;\r | |
413 | }\r | |
414 | \r | |
415 | InterfaceInfo = (EFI_IP4_CONFIG2_INTERFACE_INFO *)Data;\r | |
416 | \r | |
417 | //\r | |
418 | // Build required Token.\r | |
419 | //\r | |
420 | Status = gBS->CreateEvent (\r | |
421 | EVT_NOTIFY_SIGNAL,\r | |
422 | TPL_NOTIFY,\r | |
423 | DhcpCommonNotify,\r | |
424 | &IsDone,\r | |
425 | &Token.CompletionEvent\r | |
426 | );\r | |
427 | if (EFI_ERROR (Status)) {\r | |
428 | goto ON_EXIT;\r | |
429 | }\r | |
430 | \r | |
431 | SetMem (&Token.RemoteAddress, sizeof (EFI_IPv4_ADDRESS), 0xff);\r | |
432 | \r | |
433 | Token.RemotePort = 67;\r | |
434 | \r | |
435 | Token.ListenPointCount = 1;\r | |
436 | \r | |
437 | Token.ListenPoints = AllocateZeroPool (Token.ListenPointCount * sizeof (EFI_DHCP4_LISTEN_POINT));\r | |
438 | if (Token.ListenPoints == NULL) {\r | |
439 | Status = EFI_OUT_OF_RESOURCES;\r | |
440 | goto ON_EXIT;\r | |
441 | }\r | |
442 | \r | |
443 | if (Instance->Dns4CfgData.UseDefaultSetting) {\r | |
444 | CopyMem (&(Token.ListenPoints[0].ListenAddress), &(InterfaceInfo->StationAddress), sizeof (EFI_IPv4_ADDRESS));\r | |
445 | CopyMem (&(Token.ListenPoints[0].SubnetMask), &(InterfaceInfo->SubnetMask), sizeof (EFI_IPv4_ADDRESS));\r | |
446 | } else {\r | |
447 | CopyMem (&(Token.ListenPoints[0].ListenAddress), &(Instance->Dns4CfgData.StationIp), sizeof (EFI_IPv4_ADDRESS));\r | |
448 | CopyMem (&(Token.ListenPoints[0].SubnetMask), &(Instance->Dns4CfgData.SubnetMask), sizeof (EFI_IPv4_ADDRESS));\r | |
449 | }\r | |
450 | \r | |
451 | Token.ListenPoints[0].ListenPort = 68;\r | |
452 | \r | |
453 | Token.TimeoutValue = DNS_TIME_TO_GETMAP;\r | |
454 | \r | |
455 | DnsInitSeedPacket (&SeedPacket, InterfaceInfo);\r | |
456 | \r | |
457 | ParaList[0] = AllocateZeroPool (sizeof (EFI_DHCP4_PACKET_OPTION));\r | |
458 | if (ParaList[0] == NULL) {\r | |
459 | Status = EFI_OUT_OF_RESOURCES;\r | |
460 | goto ON_EXIT;\r | |
461 | }\r | |
462 | \r | |
463 | ParaList[0]->OpCode = DHCP4_TAG_TYPE;\r | |
464 | ParaList[0]->Length = 1;\r | |
b61fda11 | 465 | ParaList[0]->Data[0] = DHCP4_MSG_REQUEST;\r |
99c048ef | 466 | \r |
467 | ParaList[1] = AllocateZeroPool (sizeof (EFI_DHCP4_PACKET_OPTION));\r | |
468 | if (ParaList[1] == NULL) {\r | |
469 | Status = EFI_OUT_OF_RESOURCES;\r | |
470 | goto ON_EXIT;\r | |
471 | }\r | |
472 | \r | |
473 | ParaList[1]->OpCode = DHCP4_TAG_PARA_LIST;\r | |
474 | ParaList[1]->Length = 1;\r | |
475 | ParaList[1]->Data[0] = DHCP4_TAG_DNS_SERVER;\r | |
476 | \r | |
477 | Status = Dhcp4->Build (Dhcp4, &SeedPacket, 0, NULL, 2, ParaList, &Token.Packet); \r | |
478 | \r | |
479 | Token.Packet->Dhcp4.Header.Xid = HTONL(NET_RANDOM (NetRandomInitSeed ()));\r | |
480 | \r | |
481 | Token.Packet->Dhcp4.Header.Reserved = HTONS ((UINT16)0x8000);\r | |
482 | \r | |
483 | if (Instance->Dns4CfgData.UseDefaultSetting) {\r | |
484 | CopyMem (&(Token.Packet->Dhcp4.Header.ClientAddr), &(InterfaceInfo->StationAddress), sizeof (EFI_IPv4_ADDRESS));\r | |
485 | } else {\r | |
486 | CopyMem (&(Token.Packet->Dhcp4.Header.ClientAddr), &(Instance->Dns4CfgData.StationIp), sizeof (EFI_IPv4_ADDRESS));\r | |
487 | }\r | |
488 | \r | |
489 | CopyMem (Token.Packet->Dhcp4.Header.ClientHwAddr, &(InterfaceInfo->HwAddress), InterfaceInfo->HwAddressSize); \r | |
490 | \r | |
491 | Token.Packet->Dhcp4.Header.HwAddrLen = (UINT8)(InterfaceInfo->HwAddressSize);\r | |
492 | \r | |
493 | //\r | |
494 | // TransmitReceive Token\r | |
495 | //\r | |
496 | Status = Dhcp4->TransmitReceive (Dhcp4, &Token);\r | |
497 | if (EFI_ERROR (Status)) {\r | |
498 | goto ON_EXIT;\r | |
499 | }\r | |
500 | \r | |
501 | //\r | |
502 | // Poll the packet\r | |
503 | //\r | |
504 | do {\r | |
505 | Status = Mnp->Poll (Mnp);\r | |
506 | } while (!IsDone);\r | |
507 | \r | |
508 | //\r | |
509 | // Parse the ACK to get required information if received done.\r | |
510 | //\r | |
511 | if (IsDone && !EFI_ERROR (Token.Status)) {\r | |
512 | for (Index = 0; Index < Token.ResponseCount; Index++) {\r | |
513 | Status = ParseDhcp4Ack (Dhcp4, &Token.ResponseList[Index], &DnsServerInfor);\r | |
514 | if (!EFI_ERROR (Status)) {\r | |
515 | break;\r | |
516 | }\r | |
517 | }\r | |
518 | \r | |
519 | *DnsServerList = DnsServerInfor.ServerList;\r | |
520 | } else {\r | |
521 | Status = Token.Status;\r | |
522 | }\r | |
523 | \r | |
524 | ON_EXIT:\r | |
525 | \r | |
526 | if (Data != NULL) {\r | |
527 | FreePool (Data);\r | |
528 | }\r | |
529 | \r | |
530 | for (Index = 0; Index < 2; Index++) {\r | |
531 | if (ParaList[Index] != NULL) {\r | |
532 | FreePool (ParaList[Index]);\r | |
533 | }\r | |
534 | }\r | |
535 | \r | |
536 | if (Token.ListenPoints) {\r | |
537 | FreePool (Token.ListenPoints);\r | |
538 | }\r | |
539 | \r | |
540 | if (Token.Packet) {\r | |
541 | FreePool (Token.Packet);\r | |
542 | }\r | |
543 | \r | |
544 | if (Token.ResponseList != NULL) {\r | |
545 | FreePool (Token.ResponseList);\r | |
546 | }\r | |
547 | \r | |
548 | if (Token.CompletionEvent != NULL) {\r | |
549 | gBS->CloseEvent (Token.CompletionEvent);\r | |
550 | }\r | |
551 | \r | |
552 | if (Dhcp4 != NULL) {\r | |
553 | Dhcp4->Stop (Dhcp4);\r | |
554 | Dhcp4->Configure (Dhcp4, NULL);\r | |
555 | \r | |
556 | gBS->CloseProtocol (\r | |
557 | Dhcp4Handle,\r | |
558 | &gEfiDhcp4ProtocolGuid,\r | |
559 | Image,\r | |
560 | Controller\r | |
561 | );\r | |
562 | }\r | |
563 | \r | |
564 | if (Dhcp4Handle != NULL) {\r | |
565 | NetLibDestroyServiceChild (\r | |
566 | Controller,\r | |
567 | Image,\r | |
568 | &gEfiDhcp4ServiceBindingProtocolGuid,\r | |
569 | Dhcp4Handle\r | |
570 | );\r | |
571 | }\r | |
572 | \r | |
573 | if (Mnp != NULL) {\r | |
574 | Mnp->Configure (Mnp, NULL);\r | |
575 | \r | |
576 | gBS->CloseProtocol (\r | |
577 | MnpChildHandle,\r | |
578 | &gEfiManagedNetworkProtocolGuid,\r | |
579 | Image,\r | |
580 | Controller\r | |
581 | );\r | |
582 | }\r | |
583 | \r | |
584 | NetLibDestroyServiceChild (\r | |
585 | Controller,\r | |
586 | Image,\r | |
587 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
588 | MnpChildHandle\r | |
589 | );\r | |
590 | \r | |
591 | return Status;\r | |
592 | }\r | |
593 | \r | |
594 | /**\r | |
595 | Parse the DHCP ACK to get Dns6 server information.\r | |
596 | \r | |
597 | @param Image The handle of the driver image.\r | |
598 | @param Controller The handle of the controller.\r | |
599 | @param DnsServerCount Retrieved Dns6 server Ip count.\r | |
600 | @param DnsServerList Retrieved Dns6 server Ip list.\r | |
601 | \r | |
602 | @retval EFI_SUCCESS The Dns6 information is got from the DHCP ACK.\r | |
603 | @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r | |
604 | @retval EFI_NO_MEDIA There was a media error.\r | |
605 | @retval Others Other errors as indicated.\r | |
606 | \r | |
607 | **/\r | |
608 | EFI_STATUS\r | |
609 | GetDns6ServerFromDhcp6 (\r | |
610 | IN EFI_HANDLE Image,\r | |
611 | IN EFI_HANDLE Controller,\r | |
612 | OUT UINT32 *DnsServerCount,\r | |
613 | OUT EFI_IPv6_ADDRESS **DnsServerList\r | |
614 | )\r | |
615 | {\r | |
616 | EFI_HANDLE Dhcp6Handle;\r | |
617 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
618 | EFI_STATUS Status;\r | |
619 | EFI_STATUS TimerStatus;\r | |
620 | EFI_DHCP6_PACKET_OPTION *Oro;\r | |
621 | EFI_DHCP6_RETRANSMISSION InfoReqReXmit;\r | |
622 | EFI_EVENT Timer;\r | |
152f2d5e | 623 | EFI_STATUS MediaStatus;\r |
99c048ef | 624 | DNS6_SERVER_INFOR DnsServerInfor;\r |
625 | \r | |
626 | Dhcp6Handle = NULL;\r | |
627 | Dhcp6 = NULL;\r | |
628 | Oro = NULL;\r | |
629 | Timer = NULL;\r | |
630 | \r | |
631 | ZeroMem (&DnsServerInfor, sizeof (DNS6_SERVER_INFOR));\r | |
632 | \r | |
633 | DnsServerInfor.ServerCount = DnsServerCount;\r | |
634 | \r | |
635 | //\r | |
636 | // Check media status before doing DHCP.\r | |
637 | //\r | |
152f2d5e | 638 | MediaStatus = EFI_SUCCESS;\r |
639 | NetLibDetectMediaWaitTimeout (Controller, DNS_CHECK_MEDIA_GET_DHCP_WAITING_TIME, &MediaStatus);\r | |
640 | if (MediaStatus != EFI_SUCCESS) {\r | |
99c048ef | 641 | return EFI_NO_MEDIA;\r |
642 | }\r | |
643 | \r | |
644 | //\r | |
645 | // Create a DHCP6 child instance and get the protocol.\r | |
646 | //\r | |
647 | Status = NetLibCreateServiceChild (\r | |
648 | Controller,\r | |
649 | Image,\r | |
650 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
651 | &Dhcp6Handle\r | |
652 | );\r | |
653 | if (EFI_ERROR (Status)) {\r | |
654 | return Status;\r | |
655 | }\r | |
656 | \r | |
657 | Status = gBS->OpenProtocol (\r | |
658 | Dhcp6Handle,\r | |
659 | &gEfiDhcp6ProtocolGuid,\r | |
660 | (VOID **) &Dhcp6,\r | |
661 | Image,\r | |
662 | Controller,\r | |
663 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
664 | );\r | |
665 | if (EFI_ERROR (Status)) {\r | |
666 | goto ON_EXIT;\r | |
667 | }\r | |
668 | \r | |
669 | Oro = AllocateZeroPool (sizeof (EFI_DHCP6_PACKET_OPTION) + 1);\r | |
670 | if (Oro == NULL) {\r | |
671 | Status = EFI_OUT_OF_RESOURCES;\r | |
672 | goto ON_EXIT;\r | |
673 | }\r | |
674 | \r | |
675 | //\r | |
676 | // Ask the server to reply with DNS options.\r | |
677 | // All members in EFI_DHCP6_PACKET_OPTION are in network order.\r | |
678 | //\r | |
679 | Oro->OpCode = HTONS (DHCP6_TAG_DNS_REQUEST);\r | |
680 | Oro->OpLen = HTONS (2);\r | |
681 | Oro->Data[1] = DHCP6_TAG_DNS_SERVER;\r | |
682 | \r | |
683 | InfoReqReXmit.Irt = 4;\r | |
684 | InfoReqReXmit.Mrc = 1;\r | |
685 | InfoReqReXmit.Mrt = 10;\r | |
686 | InfoReqReXmit.Mrd = 30;\r | |
687 | \r | |
688 | Status = Dhcp6->InfoRequest (\r | |
689 | Dhcp6,\r | |
690 | TRUE,\r | |
691 | Oro,\r | |
692 | 0,\r | |
693 | NULL,\r | |
694 | &InfoReqReXmit,\r | |
695 | NULL,\r | |
696 | ParseDhcp6Ack,\r | |
697 | &DnsServerInfor\r | |
698 | );\r | |
699 | if (Status == EFI_NO_MAPPING) {\r | |
700 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
701 | if (EFI_ERROR (Status)) {\r | |
702 | goto ON_EXIT;\r | |
703 | }\r | |
704 | \r | |
705 | Status = gBS->SetTimer (\r | |
706 | Timer,\r | |
707 | TimerRelative,\r | |
708 | DNS_TIME_TO_GETMAP * TICKS_PER_SECOND\r | |
709 | );\r | |
710 | \r | |
711 | if (EFI_ERROR (Status)) {\r | |
712 | goto ON_EXIT;\r | |
713 | }\r | |
714 | \r | |
715 | do {\r | |
716 | TimerStatus = gBS->CheckEvent (Timer);\r | |
717 | if (!EFI_ERROR (TimerStatus)) {\r | |
718 | Status = Dhcp6->InfoRequest (\r | |
719 | Dhcp6,\r | |
720 | TRUE,\r | |
721 | Oro,\r | |
722 | 0,\r | |
723 | NULL,\r | |
724 | &InfoReqReXmit,\r | |
725 | NULL,\r | |
726 | ParseDhcp6Ack,\r | |
727 | &DnsServerInfor\r | |
728 | );\r | |
729 | }\r | |
730 | } while (TimerStatus == EFI_NOT_READY);\r | |
731 | }\r | |
732 | \r | |
733 | *DnsServerList = DnsServerInfor.ServerList;\r | |
734 | \r | |
735 | ON_EXIT:\r | |
736 | \r | |
737 | if (Oro != NULL) {\r | |
738 | FreePool (Oro);\r | |
739 | } \r | |
740 | \r | |
741 | if (Timer != NULL) {\r | |
742 | gBS->CloseEvent (Timer);\r | |
743 | }\r | |
744 | \r | |
745 | if (Dhcp6 != NULL) {\r | |
746 | gBS->CloseProtocol (\r | |
747 | Dhcp6Handle,\r | |
748 | &gEfiDhcp6ProtocolGuid,\r | |
749 | Image,\r | |
750 | Controller\r | |
751 | );\r | |
752 | }\r | |
753 | \r | |
754 | NetLibDestroyServiceChild (\r | |
755 | Controller,\r | |
756 | Image,\r | |
757 | &gEfiDhcp6ServiceBindingProtocolGuid,\r | |
758 | Dhcp6Handle\r | |
759 | );\r | |
760 | \r | |
761 | return Status;\r | |
762 | \r | |
763 | }\r | |
764 | \r |