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a3bcde70 HT |
1 | /** @file\r |
2 | Functions implementation related with DHCPv6 for UefiPxeBc Driver.\r | |
3 | \r | |
8f586b85 | 4 | (C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>\r |
9f4f29cb | 5 | Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r |
a3bcde70 | 6 | \r |
ecf98fbc | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
a3bcde70 HT |
8 | \r |
9 | **/\r | |
10 | \r | |
11 | #include "PxeBcImpl.h"\r | |
12 | \r | |
d40002ba | 13 | //\r |
14 | // Well-known multi-cast address defined in section-24.1 of rfc-3315\r | |
15 | //\r | |
16 | // ALL_DHCP_Relay_Agents_and_Servers address: FF02::1:2\r | |
17 | //\r | |
18 | EFI_IPv6_ADDRESS mAllDhcpRelayAndServersAddress = {{0xFF, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2}};\r | |
a3bcde70 HT |
19 | \r |
20 | /**\r | |
21 | Parse out a DHCPv6 option by OptTag, and find the position in buffer.\r | |
22 | \r | |
23 | @param[in] Buffer The pointer to the option buffer.\r | |
24 | @param[in] Length Length of the option buffer.\r | |
25 | @param[in] OptTag The required option tag.\r | |
26 | \r | |
27 | @retval NULL Failed to parse the required option.\r | |
5add2c55 | 28 | @retval Others The position of the required option in buffer.\r |
a3bcde70 HT |
29 | \r |
30 | **/\r | |
31 | EFI_DHCP6_PACKET_OPTION *\r | |
32 | PxeBcParseDhcp6Options (\r | |
33 | IN UINT8 *Buffer,\r | |
34 | IN UINT32 Length,\r | |
35 | IN UINT16 OptTag\r | |
36 | )\r | |
37 | {\r | |
38 | EFI_DHCP6_PACKET_OPTION *Option;\r | |
39 | UINT32 Offset;\r | |
40 | \r | |
41 | Option = (EFI_DHCP6_PACKET_OPTION *) Buffer;\r | |
42 | Offset = 0;\r | |
43 | \r | |
44 | //\r | |
45 | // OpLen and OpCode here are both stored in network order.\r | |
46 | //\r | |
47 | while (Offset < Length) {\r | |
48 | \r | |
49 | if (NTOHS (Option->OpCode) == OptTag) {\r | |
50 | \r | |
51 | return Option;\r | |
52 | }\r | |
53 | \r | |
54 | Offset += (NTOHS(Option->OpLen) + 4);\r | |
55 | Option = (EFI_DHCP6_PACKET_OPTION *) (Buffer + Offset);\r | |
56 | }\r | |
57 | \r | |
58 | return NULL;\r | |
59 | }\r | |
60 | \r | |
61 | \r | |
62 | /**\r | |
63 | Build the options buffer for the DHCPv6 request packet.\r | |
64 | \r | |
65 | @param[in] Private The pointer to PxeBc private data.\r | |
66 | @param[out] OptList The pointer to the option pointer array.\r | |
67 | @param[in] Buffer The pointer to the buffer to contain the option list.\r | |
68 | \r | |
69 | @return Index The count of the built-in options.\r | |
70 | \r | |
71 | **/\r | |
72 | UINT32\r | |
73 | PxeBcBuildDhcp6Options (\r | |
74 | IN PXEBC_PRIVATE_DATA *Private,\r | |
75 | OUT EFI_DHCP6_PACKET_OPTION **OptList,\r | |
76 | IN UINT8 *Buffer\r | |
77 | )\r | |
78 | {\r | |
79 | PXEBC_DHCP6_OPTION_ENTRY OptEnt;\r | |
80 | UINT32 Index;\r | |
81 | UINT16 Value;\r | |
82 | \r | |
83 | Index = 0;\r | |
84 | OptList[0] = (EFI_DHCP6_PACKET_OPTION *) Buffer;\r | |
85 | \r | |
86 | //\r | |
87 | // Append client option request option\r | |
88 | //\r | |
142c00c3 | 89 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ORO);\r |
be37315a | 90 | OptList[Index]->OpLen = HTONS (8);\r |
a3bcde70 | 91 | OptEnt.Oro = (PXEBC_DHCP6_OPTION_ORO *) OptList[Index]->Data;\r |
142c00c3 ZL |
92 | OptEnt.Oro->OpCode[0] = HTONS(DHCP6_OPT_BOOT_FILE_URL);\r |
93 | OptEnt.Oro->OpCode[1] = HTONS(DHCP6_OPT_BOOT_FILE_PARAM);\r | |
6692d519 | 94 | OptEnt.Oro->OpCode[2] = HTONS(DHCP6_OPT_DNS_SERVERS);\r |
be37315a | 95 | OptEnt.Oro->OpCode[3] = HTONS(DHCP6_OPT_VENDOR_CLASS);\r |
a3bcde70 HT |
96 | Index++;\r |
97 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
98 | \r | |
99 | //\r | |
100 | // Append client network device interface option\r | |
101 | //\r | |
142c00c3 | 102 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_UNDI);\r |
852b6341 | 103 | OptList[Index]->OpLen = HTONS ((UINT16)3);\r |
a3bcde70 HT |
104 | OptEnt.Undi = (PXEBC_DHCP6_OPTION_UNDI *) OptList[Index]->Data;\r |
105 | \r | |
106 | if (Private->Nii != NULL) {\r | |
107 | OptEnt.Undi->Type = Private->Nii->Type;\r | |
108 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r | |
109 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r | |
110 | } else {\r | |
111 | OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r | |
112 | OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r | |
113 | OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r | |
114 | }\r | |
115 | \r | |
a3bcde70 HT |
116 | Index++;\r |
117 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
118 | \r | |
119 | //\r | |
120 | // Append client system architecture option\r | |
121 | //\r | |
142c00c3 | 122 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ARCH);\r |
a3bcde70 HT |
123 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_ARCH));\r |
124 | OptEnt.Arch = (PXEBC_DHCP6_OPTION_ARCH *) OptList[Index]->Data;\r | |
125 | Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r | |
126 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r | |
127 | Index++;\r | |
128 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
129 | \r | |
130 | //\r | |
131 | // Append vendor class option to store the PXE class identifier.\r | |
132 | //\r | |
142c00c3 | 133 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_VENDOR_CLASS);\r |
a3bcde70 HT |
134 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_VENDOR_CLASS));\r |
135 | OptEnt.VendorClass = (PXEBC_DHCP6_OPTION_VENDOR_CLASS *) OptList[Index]->Data;\r | |
136 | OptEnt.VendorClass->Vendor = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);\r | |
137 | OptEnt.VendorClass->ClassLen = HTONS ((UINT16) sizeof (PXEBC_CLASS_ID));\r | |
138 | CopyMem (\r | |
139 | &OptEnt.VendorClass->ClassId,\r | |
140 | DEFAULT_CLASS_ID_DATA,\r | |
141 | sizeof (PXEBC_CLASS_ID)\r | |
142 | );\r | |
143 | PxeBcUintnToAscDecWithFormat (\r | |
144 | EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE,\r | |
145 | OptEnt.VendorClass->ClassId.ArchitectureType,\r | |
146 | sizeof (OptEnt.VendorClass->ClassId.ArchitectureType)\r | |
147 | );\r | |
148 | \r | |
149 | if (Private->Nii != NULL) {\r | |
150 | CopyMem (\r | |
151 | OptEnt.VendorClass->ClassId.InterfaceName,\r | |
152 | Private->Nii->StringId,\r | |
153 | sizeof (OptEnt.VendorClass->ClassId.InterfaceName)\r | |
154 | );\r | |
155 | PxeBcUintnToAscDecWithFormat (\r | |
156 | Private->Nii->MajorVer,\r | |
157 | OptEnt.VendorClass->ClassId.UndiMajor,\r | |
158 | sizeof (OptEnt.VendorClass->ClassId.UndiMajor)\r | |
159 | );\r | |
160 | PxeBcUintnToAscDecWithFormat (\r | |
161 | Private->Nii->MinorVer,\r | |
162 | OptEnt.VendorClass->ClassId.UndiMinor,\r | |
163 | sizeof (OptEnt.VendorClass->ClassId.UndiMinor)\r | |
164 | );\r | |
165 | }\r | |
166 | \r | |
167 | Index++;\r | |
168 | \r | |
169 | return Index;\r | |
170 | }\r | |
171 | \r | |
172 | \r | |
173 | /**\r | |
174 | Cache the DHCPv6 packet.\r | |
175 | \r | |
176 | @param[in] Dst The pointer to the cache buffer for DHCPv6 packet.\r | |
177 | @param[in] Src The pointer to the DHCPv6 packet to be cached.\r | |
178 | \r | |
a35dc649 FS |
179 | @retval EFI_SUCCESS Packet is copied.\r |
180 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
181 | \r | |
a3bcde70 | 182 | **/\r |
a35dc649 | 183 | EFI_STATUS\r |
a3bcde70 HT |
184 | PxeBcCacheDhcp6Packet (\r |
185 | IN EFI_DHCP6_PACKET *Dst,\r | |
186 | IN EFI_DHCP6_PACKET *Src\r | |
187 | )\r | |
188 | {\r | |
a35dc649 FS |
189 | if (Dst->Size < Src->Length) {\r |
190 | return EFI_BUFFER_TOO_SMALL;\r | |
191 | }\r | |
a3bcde70 HT |
192 | \r |
193 | CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);\r | |
194 | Dst->Length = Src->Length;\r | |
a35dc649 FS |
195 | \r |
196 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
197 | }\r |
198 | \r | |
6692d519 ZL |
199 | /**\r |
200 | Retrieve the boot server address using the EFI_DNS6_PROTOCOL.\r | |
201 | \r | |
202 | @param[in] Private Pointer to PxeBc private data.\r | |
203 | @param[in] HostName Pointer to buffer containing hostname.\r | |
204 | @param[out] IpAddress On output, pointer to buffer containing IPv6 address.\r | |
205 | \r | |
206 | @retval EFI_SUCCESS Operation succeeded.\r | |
207 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
208 | @retval EFI_DEVICE_ERROR An unexpected network error occurred.\r | |
209 | @retval Others Other errors as indicated.\r | |
f75a7f56 | 210 | \r |
6692d519 ZL |
211 | **/\r |
212 | EFI_STATUS\r | |
213 | PxeBcDns6 (\r | |
214 | IN PXEBC_PRIVATE_DATA *Private,\r | |
215 | IN CHAR16 *HostName,\r | |
f75a7f56 | 216 | OUT EFI_IPv6_ADDRESS *IpAddress\r |
6692d519 ZL |
217 | )\r |
218 | {\r | |
219 | EFI_STATUS Status;\r | |
220 | EFI_DNS6_PROTOCOL *Dns6;\r | |
221 | EFI_DNS6_CONFIG_DATA Dns6ConfigData;\r | |
222 | EFI_DNS6_COMPLETION_TOKEN Token;\r | |
223 | EFI_HANDLE Dns6Handle;\r | |
224 | EFI_IPv6_ADDRESS *DnsServerList;\r | |
225 | BOOLEAN IsDone;\r | |
f75a7f56 | 226 | \r |
6692d519 ZL |
227 | Dns6 = NULL;\r |
228 | Dns6Handle = NULL;\r | |
229 | DnsServerList = Private->DnsServer;\r | |
230 | ZeroMem (&Token, sizeof (EFI_DNS6_COMPLETION_TOKEN));\r | |
231 | \r | |
232 | //\r | |
233 | // Create a DNSv6 child instance and get the protocol.\r | |
234 | //\r | |
235 | Status = NetLibCreateServiceChild (\r | |
236 | Private->Controller,\r | |
237 | Private->Image,\r | |
238 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
239 | &Dns6Handle\r | |
240 | );\r | |
241 | if (EFI_ERROR (Status)) {\r | |
242 | goto Exit;\r | |
f75a7f56 LG |
243 | }\r |
244 | \r | |
6692d519 ZL |
245 | Status = gBS->OpenProtocol (\r |
246 | Dns6Handle,\r | |
247 | &gEfiDns6ProtocolGuid,\r | |
248 | (VOID **) &Dns6,\r | |
249 | Private->Image,\r | |
250 | Private->Controller,\r | |
251 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
252 | );\r | |
253 | if (EFI_ERROR (Status)) {\r | |
254 | goto Exit;\r | |
255 | }\r | |
256 | \r | |
257 | //\r | |
258 | // Configure DNS6 instance for the DNS server address and protocol.\r | |
259 | //\r | |
260 | ZeroMem (&Dns6ConfigData, sizeof (EFI_DNS6_CONFIG_DATA));\r | |
261 | Dns6ConfigData.DnsServerCount = 1;\r | |
262 | Dns6ConfigData.DnsServerList = DnsServerList;\r | |
263 | Dns6ConfigData.EnableDnsCache = TRUE;\r | |
264 | Dns6ConfigData.Protocol = EFI_IP_PROTO_UDP;\r | |
265 | IP6_COPY_ADDRESS (&Dns6ConfigData.StationIp, &Private->TmpStationIp.v6);\r | |
266 | Status = Dns6->Configure (\r | |
267 | Dns6,\r | |
268 | &Dns6ConfigData\r | |
269 | );\r | |
270 | if (EFI_ERROR (Status)) {\r | |
271 | goto Exit;\r | |
272 | }\r | |
273 | \r | |
274 | Token.Status = EFI_NOT_READY;\r | |
275 | IsDone = FALSE;\r | |
276 | //\r | |
277 | // Create event to set the IsDone flag when name resolution is finished.\r | |
278 | //\r | |
279 | Status = gBS->CreateEvent (\r | |
280 | EVT_NOTIFY_SIGNAL,\r | |
281 | TPL_NOTIFY,\r | |
282 | PxeBcCommonNotify,\r | |
283 | &IsDone,\r | |
284 | &Token.Event\r | |
285 | );\r | |
286 | if (EFI_ERROR (Status)) {\r | |
287 | goto Exit;\r | |
288 | }\r | |
289 | \r | |
290 | //\r | |
291 | // Start asynchronous name resolution.\r | |
292 | //\r | |
293 | Status = Dns6->HostNameToIp (Dns6, HostName, &Token);\r | |
294 | if (EFI_ERROR (Status)) {\r | |
295 | goto Exit;\r | |
296 | }\r | |
297 | \r | |
298 | while (!IsDone) {\r | |
299 | Dns6->Poll (Dns6);\r | |
300 | }\r | |
301 | \r | |
302 | //\r | |
303 | // Name resolution is done, check result.\r | |
304 | //\r | |
f75a7f56 | 305 | Status = Token.Status;\r |
6692d519 ZL |
306 | if (!EFI_ERROR (Status)) {\r |
307 | if (Token.RspData.H2AData == NULL) {\r | |
308 | Status = EFI_DEVICE_ERROR;\r | |
309 | goto Exit;\r | |
310 | }\r | |
311 | if (Token.RspData.H2AData->IpCount == 0 || Token.RspData.H2AData->IpList == NULL) {\r | |
312 | Status = EFI_DEVICE_ERROR;\r | |
313 | goto Exit;\r | |
314 | }\r | |
315 | //\r | |
316 | // We just return the first IPv6 address from DNS protocol.\r | |
317 | //\r | |
318 | IP6_COPY_ADDRESS (IpAddress, Token.RspData.H2AData->IpList);\r | |
319 | Status = EFI_SUCCESS;\r | |
320 | }\r | |
f75a7f56 | 321 | \r |
6692d519 ZL |
322 | Exit:\r |
323 | FreePool (HostName);\r | |
324 | \r | |
325 | if (Token.Event != NULL) {\r | |
326 | gBS->CloseEvent (Token.Event);\r | |
327 | }\r | |
328 | if (Token.RspData.H2AData != NULL) {\r | |
329 | if (Token.RspData.H2AData->IpList != NULL) {\r | |
330 | FreePool (Token.RspData.H2AData->IpList);\r | |
331 | }\r | |
332 | FreePool (Token.RspData.H2AData);\r | |
333 | }\r | |
334 | \r | |
335 | if (Dns6 != NULL) {\r | |
336 | Dns6->Configure (Dns6, NULL);\r | |
f75a7f56 | 337 | \r |
6692d519 ZL |
338 | gBS->CloseProtocol (\r |
339 | Dns6Handle,\r | |
340 | &gEfiDns6ProtocolGuid,\r | |
341 | Private->Image,\r | |
342 | Private->Controller\r | |
343 | );\r | |
344 | }\r | |
345 | \r | |
346 | if (Dns6Handle != NULL) {\r | |
347 | NetLibDestroyServiceChild (\r | |
348 | Private->Controller,\r | |
349 | Private->Image,\r | |
350 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
351 | Dns6Handle\r | |
352 | );\r | |
353 | }\r | |
354 | \r | |
355 | if (DnsServerList != NULL) {\r | |
356 | FreePool (DnsServerList);\r | |
357 | }\r | |
f75a7f56 LG |
358 | \r |
359 | return Status;\r | |
6692d519 | 360 | }\r |
a3bcde70 HT |
361 | \r |
362 | /**\r | |
363 | Parse the Boot File URL option.\r | |
364 | \r | |
6692d519 | 365 | @param[in] Private Pointer to PxeBc private data.\r |
a3bcde70 HT |
366 | @param[out] FileName The pointer to the boot file name.\r |
367 | @param[in, out] SrvAddr The pointer to the boot server address.\r | |
368 | @param[in] BootFile The pointer to the boot file URL option data.\r | |
369 | @param[in] Length The length of the boot file URL option data.\r | |
370 | \r | |
371 | @retval EFI_ABORTED User cancel operation.\r | |
372 | @retval EFI_SUCCESS Selected the boot menu successfully.\r | |
5add2c55 | 373 | @retval EFI_NOT_READY Read the input key from the keyboard has not finish.\r |
a3bcde70 HT |
374 | \r |
375 | **/\r | |
376 | EFI_STATUS\r | |
377 | PxeBcExtractBootFileUrl (\r | |
6692d519 | 378 | IN PXEBC_PRIVATE_DATA *Private,\r |
a3bcde70 HT |
379 | OUT UINT8 **FileName,\r |
380 | IN OUT EFI_IPv6_ADDRESS *SrvAddr,\r | |
381 | IN CHAR8 *BootFile,\r | |
382 | IN UINT16 Length\r | |
383 | )\r | |
384 | {\r | |
385 | UINT16 PrefixLen;\r | |
01d89e9c | 386 | CHAR8 *BootFileNamePtr;\r |
387 | CHAR8 *BootFileName;\r | |
a3bcde70 HT |
388 | UINT16 BootFileNameLen;\r |
389 | CHAR8 *TmpStr;\r | |
129b8b09 | 390 | CHAR8 TmpChar;\r |
a3bcde70 HT |
391 | CHAR8 *ServerAddressOption;\r |
392 | CHAR8 *ServerAddress;\r | |
eb2710af | 393 | CHAR8 *ModeStr;\r |
6692d519 ZL |
394 | CHAR16 *HostName;\r |
395 | BOOLEAN IpExpressedUrl;\r | |
396 | UINTN Len;\r | |
a3bcde70 HT |
397 | EFI_STATUS Status;\r |
398 | \r | |
6692d519 | 399 | IpExpressedUrl = TRUE;\r |
a3bcde70 HT |
400 | //\r |
401 | // The format of the Boot File URL option is:\r | |
402 | //\r | |
403 | // 0 1 2 3\r | |
404 | // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1\r | |
405 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
406 | // | OPT_BOOTFILE_URL | option-len |\r | |
407 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
408 | // | |\r | |
409 | // . bootfile-url (variable length) .\r | |
410 | // | |\r | |
411 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
412 | //\r | |
413 | \r | |
414 | //\r | |
6692d519 ZL |
415 | // Based upon RFC 5970 and UEFI 2.6, bootfile-url format can be\r |
416 | // tftp://[SERVER_ADDRESS]/BOOTFILE_NAME or tftp://domain_name/BOOTFILE_NAME\r | |
a3bcde70 HT |
417 | // As an example where the BOOTFILE_NAME is the EFI loader and\r |
418 | // SERVER_ADDRESS is the ASCII encoding of an IPV6 address.\r | |
419 | //\r | |
420 | PrefixLen = (UINT16) AsciiStrLen (PXEBC_DHCP6_BOOT_FILE_URL_PREFIX);\r | |
421 | \r | |
422 | if (Length <= PrefixLen ||\r | |
423 | CompareMem (BootFile, PXEBC_DHCP6_BOOT_FILE_URL_PREFIX, PrefixLen) != 0) {\r | |
424 | return EFI_NOT_FOUND;\r | |
425 | }\r | |
426 | \r | |
427 | BootFile = BootFile + PrefixLen;\r | |
428 | Length = (UINT16) (Length - PrefixLen);\r | |
429 | \r | |
430 | TmpStr = (CHAR8 *) AllocateZeroPool (Length + 1);\r | |
431 | if (TmpStr == NULL) {\r | |
432 | return EFI_OUT_OF_RESOURCES;\r | |
433 | }\r | |
434 | \r | |
435 | CopyMem (TmpStr, BootFile, Length);\r | |
436 | TmpStr[Length] = '\0';\r | |
437 | \r | |
438 | //\r | |
439 | // Get the part of SERVER_ADDRESS string.\r | |
440 | //\r | |
441 | ServerAddressOption = TmpStr;\r | |
6692d519 ZL |
442 | if (*ServerAddressOption == PXEBC_ADDR_START_DELIMITER) {\r |
443 | ServerAddressOption ++;\r | |
444 | ServerAddress = ServerAddressOption;\r | |
445 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r | |
446 | ServerAddress++;\r | |
447 | }\r | |
f75a7f56 | 448 | \r |
6692d519 ZL |
449 | if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r |
450 | FreePool (TmpStr);\r | |
451 | return EFI_INVALID_PARAMETER;\r | |
452 | }\r | |
f75a7f56 | 453 | \r |
6692d519 | 454 | *ServerAddress = '\0';\r |
f75a7f56 | 455 | \r |
6692d519 ZL |
456 | //\r |
457 | // Convert the string of server address to Ipv6 address format and store it.\r | |
458 | //\r | |
459 | Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);\r | |
460 | if (EFI_ERROR (Status)) {\r | |
461 | FreePool (TmpStr);\r | |
462 | return Status;\r | |
463 | }\r | |
a3bcde70 | 464 | \r |
6692d519 ZL |
465 | } else {\r |
466 | IpExpressedUrl = FALSE;\r | |
467 | ServerAddress = ServerAddressOption;\r | |
468 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r | |
469 | ServerAddress++;\r | |
470 | }\r | |
a3bcde70 | 471 | \r |
6692d519 ZL |
472 | if (*ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r |
473 | FreePool (TmpStr);\r | |
474 | return EFI_INVALID_PARAMETER;\r | |
475 | }\r | |
476 | *ServerAddress = '\0';\r | |
a3bcde70 | 477 | \r |
6692d519 ZL |
478 | Len = AsciiStrSize (ServerAddressOption);\r |
479 | HostName = AllocateZeroPool (Len * sizeof (CHAR16));\r | |
480 | if (HostName == NULL) {\r | |
481 | FreePool (TmpStr);\r | |
482 | return EFI_OUT_OF_RESOURCES;\r | |
483 | }\r | |
484 | AsciiStrToUnicodeStrS (\r | |
485 | ServerAddressOption,\r | |
486 | HostName,\r | |
487 | Len\r | |
488 | );\r | |
a3bcde70 | 489 | \r |
6692d519 ZL |
490 | //\r |
491 | // Perform DNS resolution.\r | |
492 | //\r | |
493 | Status = PxeBcDns6 (Private,HostName, SrvAddr);\r | |
494 | if (EFI_ERROR (Status)) {\r | |
495 | FreePool (TmpStr);\r | |
496 | return Status;\r | |
497 | }\r | |
a3bcde70 HT |
498 | }\r |
499 | \r | |
500 | //\r | |
501 | // Get the part of BOOTFILE_NAME string.\r | |
502 | //\r | |
01d89e9c | 503 | BootFileNamePtr = (CHAR8*)((UINTN)ServerAddress + 1);\r |
6692d519 ZL |
504 | if (IpExpressedUrl) {\r |
505 | if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {\r | |
506 | FreePool (TmpStr);\r | |
507 | return EFI_INVALID_PARAMETER;\r | |
508 | }\r | |
509 | ++BootFileNamePtr;\r | |
a3bcde70 HT |
510 | }\r |
511 | \r | |
a3bcde70 HT |
512 | BootFileNameLen = (UINT16)(Length - (UINT16) ((UINTN)BootFileNamePtr - (UINTN)TmpStr) + 1);\r |
513 | if (BootFileNameLen != 0 || FileName != NULL) {\r | |
eb2710af | 514 | //\r |
515 | // Remove trailing mode=octet if present and ignore. All other modes are\r | |
516 | // invalid for netboot6, so reject them.\r | |
517 | //\r | |
518 | ModeStr = AsciiStrStr (BootFileNamePtr, ";mode=octet");\r | |
519 | if (ModeStr != NULL && *(ModeStr + AsciiStrLen (";mode=octet")) == '\0') {\r | |
520 | *ModeStr = '\0';\r | |
521 | } else if (AsciiStrStr (BootFileNamePtr, ";mode=") != NULL) {\r | |
2fad330f | 522 | FreePool (TmpStr);\r |
eb2710af | 523 | return EFI_INVALID_PARAMETER;\r |
524 | }\r | |
525 | \r | |
129b8b09 | 526 | //\r |
527 | // Extract boot file name from URL.\r | |
528 | //\r | |
01d89e9c | 529 | BootFileName = (CHAR8 *) AllocateZeroPool (BootFileNameLen);\r |
a3bcde70 HT |
530 | if (BootFileName == NULL) {\r |
531 | FreePool (TmpStr);\r | |
532 | return EFI_OUT_OF_RESOURCES;\r | |
533 | }\r | |
01d89e9c | 534 | *FileName = (UINT8*) BootFileName;\r |
a3bcde70 | 535 | \r |
129b8b09 | 536 | //\r |
537 | // Decode percent-encoding in boot file name.\r | |
538 | //\r | |
539 | while (*BootFileNamePtr != '\0') {\r | |
540 | if (*BootFileNamePtr == '%') {\r | |
541 | TmpChar = *(BootFileNamePtr+ 3);\r | |
542 | *(BootFileNamePtr+ 3) = '\0';\r | |
2f3f1a64 | 543 | *BootFileName = (UINT8) AsciiStrHexToUintn ((CHAR8*)(BootFileNamePtr + 1));\r |
129b8b09 | 544 | BootFileName++;\r |
545 | *(BootFileNamePtr+ 3) = TmpChar;\r | |
546 | BootFileNamePtr += 3;\r | |
547 | } else {\r | |
548 | *BootFileName = *BootFileNamePtr;\r | |
549 | BootFileName++;\r | |
550 | BootFileNamePtr++;\r | |
551 | }\r | |
552 | }\r | |
553 | *BootFileName = '\0';\r | |
554 | }\r | |
a3bcde70 HT |
555 | \r |
556 | FreePool (TmpStr);\r | |
557 | \r | |
558 | return EFI_SUCCESS;\r | |
559 | }\r | |
560 | \r | |
561 | \r | |
562 | /**\r | |
563 | Parse the Boot File Parameter option.\r | |
564 | \r | |
565 | @param[in] BootFilePara The pointer to boot file parameter option data.\r | |
566 | @param[out] BootFileSize The pointer to the parsed boot file size.\r | |
567 | \r | |
568 | @retval EFI_SUCCESS Successfully obtained the boot file size from parameter option.\r | |
569 | @retval EFI_NOT_FOUND Failed to extract the boot file size from parameter option.\r | |
570 | \r | |
571 | **/\r | |
572 | EFI_STATUS\r | |
573 | PxeBcExtractBootFileParam (\r | |
574 | IN CHAR8 *BootFilePara,\r | |
575 | OUT UINT16 *BootFileSize\r | |
576 | )\r | |
577 | {\r | |
578 | UINT16 Length;\r | |
579 | UINT8 Index;\r | |
580 | UINT8 Digit;\r | |
581 | UINT32 Size;\r | |
582 | \r | |
583 | CopyMem (&Length, BootFilePara, sizeof (UINT16));\r | |
584 | Length = NTOHS (Length);\r | |
585 | \r | |
586 | //\r | |
587 | // The BootFile Size should be 1~5 byte ASCII strings\r | |
588 | //\r | |
589 | if (Length < 1 || Length > 5) {\r | |
590 | return EFI_NOT_FOUND;\r | |
591 | }\r | |
592 | \r | |
593 | //\r | |
594 | // Extract the value of BootFile Size.\r | |
595 | //\r | |
596 | BootFilePara = BootFilePara + sizeof (UINT16);\r | |
597 | Size = 0;\r | |
598 | for (Index = 0; Index < Length; Index++) {\r | |
599 | if (EFI_ERROR (PxeBcUniHexToUint8 (&Digit, *(BootFilePara + Index)))) {\r | |
600 | return EFI_NOT_FOUND;\r | |
601 | }\r | |
602 | \r | |
603 | Size = (Size + Digit) * 10;\r | |
604 | }\r | |
605 | \r | |
606 | Size = Size / 10;\r | |
607 | if (Size > PXEBC_DHCP6_MAX_BOOT_FILE_SIZE) {\r | |
608 | return EFI_NOT_FOUND;\r | |
609 | }\r | |
610 | \r | |
611 | *BootFileSize = (UINT16) Size;\r | |
612 | return EFI_SUCCESS;\r | |
613 | }\r | |
614 | \r | |
615 | \r | |
616 | /**\r | |
617 | Parse the cached DHCPv6 packet, including all the options.\r | |
618 | \r | |
619 | @param[in] Cache6 The pointer to a cached DHCPv6 packet.\r | |
620 | \r | |
621 | @retval EFI_SUCCESS Parsed the DHCPv6 packet successfully.\r | |
622 | @retval EFI_DEVICE_ERROR Failed to parse and invalid the packet.\r | |
623 | \r | |
624 | **/\r | |
625 | EFI_STATUS\r | |
626 | PxeBcParseDhcp6Packet (\r | |
627 | IN PXEBC_DHCP6_PACKET_CACHE *Cache6\r | |
628 | )\r | |
629 | {\r | |
630 | EFI_DHCP6_PACKET *Offer;\r | |
631 | EFI_DHCP6_PACKET_OPTION **Options;\r | |
632 | EFI_DHCP6_PACKET_OPTION *Option;\r | |
633 | PXEBC_OFFER_TYPE OfferType;\r | |
634 | BOOLEAN IsProxyOffer;\r | |
635 | BOOLEAN IsPxeOffer;\r | |
636 | UINT32 Offset;\r | |
637 | UINT32 Length;\r | |
638 | UINT32 EnterpriseNum;\r | |
639 | \r | |
640 | IsProxyOffer = TRUE;\r | |
641 | IsPxeOffer = FALSE;\r | |
642 | Offer = &Cache6->Packet.Offer;\r | |
643 | Options = Cache6->OptList;\r | |
644 | \r | |
645 | ZeroMem (Cache6->OptList, sizeof (Cache6->OptList));\r | |
646 | \r | |
647 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option);\r | |
648 | Offset = 0;\r | |
649 | Length = GET_DHCP6_OPTION_SIZE (Offer);\r | |
650 | \r | |
651 | //\r | |
652 | // OpLen and OpCode here are both stored in network order, since they are from original packet.\r | |
653 | //\r | |
654 | while (Offset < Length) {\r | |
655 | \r | |
142c00c3 | 656 | if (NTOHS (Option->OpCode) == DHCP6_OPT_IA_NA) {\r |
a3bcde70 | 657 | Options[PXEBC_DHCP6_IDX_IA_NA] = Option;\r |
142c00c3 | 658 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_URL) {\r |
a3bcde70 HT |
659 | //\r |
660 | // The server sends this option to inform the client about an URL to a boot file.\r | |
661 | //\r | |
662 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_URL] = Option;\r | |
142c00c3 | 663 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_PARAM) {\r |
a3bcde70 | 664 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_PARAM] = Option;\r |
142c00c3 | 665 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {\r |
a3bcde70 | 666 | Options[PXEBC_DHCP6_IDX_VENDOR_CLASS] = Option;\r |
6692d519 ZL |
667 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_DNS_SERVERS) {\r |
668 | Options[PXEBC_DHCP6_IDX_DNS_SERVER] = Option;\r | |
a3bcde70 HT |
669 | }\r |
670 | \r | |
671 | Offset += (NTOHS (Option->OpLen) + 4);\r | |
672 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option + Offset);\r | |
673 | }\r | |
674 | \r | |
675 | //\r | |
ae97201c | 676 | // The offer with assigned client address is NOT a proxy offer.\r |
5add2c55 | 677 | // An ia_na option, embedded with valid ia_addr option and a status_code of success.\r |
a3bcde70 HT |
678 | //\r |
679 | Option = Options[PXEBC_DHCP6_IDX_IA_NA];\r | |
129b8b09 | 680 | if (Option != NULL) {\r |
a3bcde70 HT |
681 | Option = PxeBcParseDhcp6Options (\r |
682 | Option->Data + 12,\r | |
683 | NTOHS (Option->OpLen),\r | |
142c00c3 | 684 | DHCP6_OPT_STATUS_CODE\r |
a3bcde70 | 685 | );\r |
129b8b09 | 686 | if ((Option != NULL && Option->Data[0] == 0) || (Option == NULL)) {\r |
a3bcde70 HT |
687 | IsProxyOffer = FALSE;\r |
688 | }\r | |
689 | }\r | |
690 | \r | |
691 | //\r | |
692 | // The offer with "PXEClient" is a pxe offer.\r | |
693 | //\r | |
694 | Option = Options[PXEBC_DHCP6_IDX_VENDOR_CLASS];\r | |
129b8b09 | 695 | EnterpriseNum = HTONL(PXEBC_DHCP6_ENTERPRISE_NUM);\r |
696 | \r | |
a3bcde70 HT |
697 | if (Option != NULL &&\r |
698 | NTOHS(Option->OpLen) >= 13 &&\r | |
699 | CompareMem (Option->Data, &EnterpriseNum, sizeof (UINT32)) == 0 &&\r | |
129b8b09 | 700 | CompareMem (&Option->Data[6], DEFAULT_CLASS_ID_DATA, 9) == 0) {\r |
a3bcde70 HT |
701 | IsPxeOffer = TRUE;\r |
702 | }\r | |
703 | \r | |
704 | //\r | |
705 | // Determine offer type of the dhcp6 packet.\r | |
706 | //\r | |
707 | if (IsPxeOffer) {\r | |
708 | //\r | |
709 | // It's a binl offer only with PXEClient.\r | |
710 | //\r | |
711 | OfferType = IsProxyOffer ? PxeOfferTypeProxyBinl : PxeOfferTypeDhcpBinl;\r | |
712 | } else {\r | |
713 | //\r | |
714 | // It's a dhcp only offer, which is a pure dhcp6 offer packet.\r | |
715 | //\r | |
716 | OfferType = PxeOfferTypeDhcpOnly;\r | |
717 | }\r | |
718 | \r | |
719 | Cache6->OfferType = OfferType;\r | |
720 | \r | |
721 | return EFI_SUCCESS;\r | |
722 | }\r | |
723 | \r | |
724 | \r | |
725 | /**\r | |
726 | Cache the DHCPv6 ack packet, and parse it on demand.\r | |
727 | \r | |
728 | @param[in] Private The pointer to PxeBc private data.\r | |
729 | @param[in] Ack The pointer to the DHCPv6 ack packet.\r | |
730 | @param[in] Verified If TRUE, parse the ACK packet and store info into mode data.\r | |
731 | \r | |
a35dc649 FS |
732 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
733 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
734 | \r | |
a3bcde70 | 735 | **/\r |
a35dc649 | 736 | EFI_STATUS\r |
a3bcde70 HT |
737 | PxeBcCopyDhcp6Ack (\r |
738 | IN PXEBC_PRIVATE_DATA *Private,\r | |
739 | IN EFI_DHCP6_PACKET *Ack,\r | |
740 | IN BOOLEAN Verified\r | |
741 | )\r | |
742 | {\r | |
743 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
a35dc649 | 744 | EFI_STATUS Status;\r |
a3bcde70 HT |
745 | \r |
746 | Mode = Private->PxeBc.Mode;\r | |
747 | \r | |
a35dc649 FS |
748 | Status = PxeBcCacheDhcp6Packet (&Private->DhcpAck.Dhcp6.Packet.Ack, Ack);\r |
749 | if (EFI_ERROR (Status)) {\r | |
750 | return Status;\r | |
751 | }\r | |
a3bcde70 HT |
752 | \r |
753 | if (Verified) {\r | |
754 | //\r | |
755 | // Parse the ack packet and store it into mode data if needed.\r | |
756 | //\r | |
757 | PxeBcParseDhcp6Packet (&Private->DhcpAck.Dhcp6);\r | |
758 | CopyMem (&Mode->DhcpAck.Dhcpv6, &Ack->Dhcp6, Ack->Length);\r | |
759 | Mode->DhcpAckReceived = TRUE;\r | |
760 | }\r | |
a35dc649 FS |
761 | \r |
762 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
763 | }\r |
764 | \r | |
765 | \r | |
766 | /**\r | |
767 | Cache the DHCPv6 proxy offer packet according to the received order.\r | |
768 | \r | |
769 | @param[in] Private The pointer to PxeBc private data.\r | |
770 | @param[in] OfferIndex The received order of offer packets.\r | |
771 | \r | |
a35dc649 FS |
772 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
773 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
774 | \r | |
a3bcde70 | 775 | **/\r |
a35dc649 | 776 | EFI_STATUS\r |
a3bcde70 HT |
777 | PxeBcCopyDhcp6Proxy (\r |
778 | IN PXEBC_PRIVATE_DATA *Private,\r | |
779 | IN UINT32 OfferIndex\r | |
780 | )\r | |
781 | {\r | |
782 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
783 | EFI_DHCP6_PACKET *Offer;\r | |
a35dc649 | 784 | EFI_STATUS Status;\r |
a3bcde70 HT |
785 | \r |
786 | ASSERT (OfferIndex < Private->OfferNum);\r | |
787 | ASSERT (OfferIndex < PXEBC_OFFER_MAX_NUM);\r | |
788 | \r | |
789 | Mode = Private->PxeBc.Mode;\r | |
790 | Offer = &Private->OfferBuffer[OfferIndex].Dhcp6.Packet.Offer;\r | |
791 | \r | |
792 | //\r | |
793 | // Cache the proxy offer packet and parse it.\r | |
794 | //\r | |
a35dc649 FS |
795 | Status = PxeBcCacheDhcp6Packet (&Private->ProxyOffer.Dhcp6.Packet.Offer, Offer);\r |
796 | if (EFI_ERROR(Status)) {\r | |
797 | return Status;\r | |
798 | }\r | |
a3bcde70 HT |
799 | PxeBcParseDhcp6Packet (&Private->ProxyOffer.Dhcp6);\r |
800 | \r | |
801 | //\r | |
802 | // Store this packet into mode data.\r | |
803 | //\r | |
804 | CopyMem (&Mode->ProxyOffer.Dhcpv6, &Offer->Dhcp6, Offer->Length);\r | |
805 | Mode->ProxyOfferReceived = TRUE;\r | |
a35dc649 FS |
806 | \r |
807 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
808 | }\r |
809 | \r | |
129b8b09 | 810 | /**\r |
811 | Seek the address of the first byte of the option header.\r | |
812 | \r | |
813 | @param[in] Buf The pointer to the buffer.\r | |
814 | @param[in] SeekLen The length to seek.\r | |
815 | @param[in] OptType The option type.\r | |
816 | \r | |
817 | @retval NULL If it failed to seek the option.\r | |
818 | @retval others The position to the option.\r | |
819 | \r | |
820 | **/\r | |
821 | UINT8 *\r | |
822 | PxeBcDhcp6SeekOption (\r | |
823 | IN UINT8 *Buf,\r | |
824 | IN UINT32 SeekLen,\r | |
825 | IN UINT16 OptType\r | |
826 | )\r | |
827 | {\r | |
828 | UINT8 *Cursor;\r | |
829 | UINT8 *Option;\r | |
830 | UINT16 DataLen;\r | |
831 | UINT16 OpCode;\r | |
832 | \r | |
833 | Option = NULL;\r | |
834 | Cursor = Buf;\r | |
835 | \r | |
836 | while (Cursor < Buf + SeekLen) {\r | |
837 | OpCode = ReadUnaligned16 ((UINT16 *) Cursor);\r | |
838 | if (OpCode == HTONS (OptType)) {\r | |
839 | Option = Cursor;\r | |
840 | break;\r | |
841 | }\r | |
842 | DataLen = NTOHS (ReadUnaligned16 ((UINT16 *) (Cursor + 2)));\r | |
843 | Cursor += (DataLen + 4);\r | |
844 | }\r | |
845 | \r | |
846 | return Option;\r | |
847 | }\r | |
848 | \r | |
849 | \r | |
850 | /**\r | |
851 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
852 | \r | |
853 | @param[in] Private The pointer to PxeBc private data.\r | |
854 | @param[in] Index PxeBc option boot item type.\r | |
855 | \r | |
856 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
857 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
858 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
859 | @retval Others Failed to discover the boot file.\r | |
860 | \r | |
861 | **/\r | |
862 | EFI_STATUS\r | |
863 | PxeBcRequestBootService (\r | |
864 | IN PXEBC_PRIVATE_DATA *Private,\r | |
865 | IN UINT32 Index\r | |
866 | )\r | |
867 | {\r | |
868 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
869 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
129b8b09 | 870 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r |
871 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
872 | UINTN DiscoverLen;\r | |
873 | EFI_DHCP6_PACKET *Request;\r | |
874 | UINTN RequestLen;\r | |
875 | EFI_DHCP6_PACKET *Reply;\r | |
876 | UINT8 *RequestOpt;\r | |
877 | UINT8 *DiscoverOpt;\r | |
878 | UINTN ReadSize;\r | |
879 | UINT16 OpFlags;\r | |
880 | UINT16 OpCode;\r | |
881 | UINT16 OpLen;\r | |
882 | EFI_STATUS Status;\r | |
be37315a | 883 | EFI_DHCP6_PACKET *IndexOffer;\r |
129b8b09 | 884 | UINT8 *Option;\r |
885 | \r | |
886 | PxeBc = &Private->PxeBc;\r | |
129b8b09 | 887 | Request = Private->Dhcp6Request;\r |
be37315a | 888 | IndexOffer = &Private->OfferBuffer[Index].Dhcp6.Packet.Offer;\r |
129b8b09 | 889 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r |
890 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
891 | OpFlags = 0;\r | |
892 | \r | |
893 | if (Request == NULL) {\r | |
894 | return EFI_DEVICE_ERROR;\r | |
895 | }\r | |
896 | \r | |
897 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
898 | if (Discover == NULL) {\r | |
899 | return EFI_OUT_OF_RESOURCES;\r | |
900 | }\r | |
901 | \r | |
902 | //\r | |
903 | // Build the request packet by the cached request packet before.\r | |
904 | //\r | |
be37315a | 905 | Discover->TransactionId = IndexOffer->Dhcp6.Header.TransactionId;\r |
129b8b09 | 906 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r |
907 | RequestOpt = Request->Dhcp6.Option;\r | |
908 | DiscoverOpt = Discover->DhcpOptions;\r | |
909 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
910 | RequestLen = DiscoverLen;\r | |
911 | \r | |
912 | //\r | |
913 | // Find Server ID Option from ProxyOffer.\r | |
914 | //\r | |
f75a7f56 | 915 | if (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl) {\r |
be37315a JW |
916 | Option = PxeBcDhcp6SeekOption (\r |
917 | IndexOffer->Dhcp6.Option,\r | |
918 | IndexOffer->Length - 4,\r | |
919 | DHCP6_OPT_SERVER_ID\r | |
920 | );\r | |
921 | if (Option == NULL) {\r | |
922 | return EFI_NOT_FOUND;\r | |
923 | }\r | |
f75a7f56 | 924 | \r |
be37315a JW |
925 | //\r |
926 | // Add Server ID Option.\r | |
927 | //\r | |
928 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) Option)->OpLen);\r | |
929 | CopyMem (DiscoverOpt, Option, OpLen + 4);\r | |
930 | DiscoverOpt += (OpLen + 4);\r | |
931 | DiscoverLen += (OpLen + 4);\r | |
932 | }\r | |
129b8b09 | 933 | \r |
934 | while (RequestLen < Request->Length) {\r | |
935 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
936 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
937 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
938 | OpCode != EFI_DHCP6_IA_TYPE_TA &&\r | |
142c00c3 | 939 | OpCode != DHCP6_OPT_SERVER_ID\r |
129b8b09 | 940 | ) {\r |
941 | //\r | |
942 | // Copy all the options except IA option and Server ID\r | |
943 | //\r | |
944 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
945 | DiscoverOpt += (OpLen + 4);\r | |
946 | DiscoverLen += (OpLen + 4);\r | |
947 | }\r | |
948 | RequestOpt += (OpLen + 4);\r | |
949 | RequestLen += (OpLen + 4);\r | |
950 | }\r | |
951 | \r | |
952 | //\r | |
f75a7f56 | 953 | // Update Elapsed option in the package\r |
129b8b09 | 954 | //\r |
955 | Option = PxeBcDhcp6SeekOption (\r | |
956 | Discover->DhcpOptions,\r | |
957 | (UINT32)(RequestLen - 4),\r | |
142c00c3 | 958 | DHCP6_OPT_ELAPSED_TIME\r |
129b8b09 | 959 | );\r |
960 | if (Option != NULL) {\r | |
961 | CalcElapsedTime (Private);\r | |
962 | WriteUnaligned16 ((UINT16*)(Option + 4), HTONS((UINT16) Private->ElapsedTime));\r | |
f75a7f56 | 963 | }\r |
129b8b09 | 964 | \r |
965 | Status = PxeBc->UdpWrite (\r | |
966 | PxeBc,\r | |
967 | OpFlags,\r | |
968 | &Private->ServerIp,\r | |
969 | &DestPort,\r | |
970 | NULL,\r | |
971 | &Private->StationIp,\r | |
972 | &SrcPort,\r | |
973 | NULL,\r | |
974 | NULL,\r | |
975 | &DiscoverLen,\r | |
976 | (VOID *) Discover\r | |
977 | );\r | |
978 | \r | |
979 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 980 | goto ON_ERROR;\r |
129b8b09 | 981 | }\r |
982 | \r | |
983 | //\r | |
984 | // Cache the right PXE reply packet here, set valid flag later.\r | |
985 | // Especially for PXE discover packet, store it into mode data here.\r | |
986 | //\r | |
987 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
988 | ReadSize = (UINTN) Reply->Size;\r | |
989 | \r | |
990 | //\r | |
991 | // Start Udp6Read instance\r | |
992 | //\r | |
993 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
994 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 995 | goto ON_ERROR;\r |
129b8b09 | 996 | }\r |
f75a7f56 | 997 | \r |
129b8b09 | 998 | Status = PxeBc->UdpRead (\r |
999 | PxeBc,\r | |
903d1fa9 FS |
1000 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
1001 | NULL,\r | |
129b8b09 | 1002 | &SrcPort,\r |
1003 | &Private->ServerIp,\r | |
1004 | &DestPort,\r | |
1005 | NULL,\r | |
1006 | NULL,\r | |
1007 | &ReadSize,\r | |
1008 | (VOID *) &Reply->Dhcp6\r | |
1009 | );\r | |
1010 | //\r | |
1011 | // Stop Udp6Read instance\r | |
1012 | //\r | |
1013 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
1014 | \r | |
1015 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 1016 | goto ON_ERROR;\r |
129b8b09 | 1017 | }\r |
1018 | \r | |
1019 | //\r | |
1020 | // Update length\r | |
1021 | //\r | |
1022 | Reply->Length = (UINT32) ReadSize;\r | |
1023 | \r | |
1024 | return EFI_SUCCESS;\r | |
f75a7f56 | 1025 | \r |
2fad330f FS |
1026 | ON_ERROR:\r |
1027 | if (Discover != NULL) {\r | |
1028 | FreePool (Discover);\r | |
1029 | }\r | |
1030 | \r | |
1031 | return Status;\r | |
129b8b09 | 1032 | }\r |
1033 | \r | |
a3bcde70 HT |
1034 | \r |
1035 | /**\r | |
1036 | Retry to request bootfile name by the BINL offer.\r | |
1037 | \r | |
1038 | @param[in] Private The pointer to PxeBc private data.\r | |
1039 | @param[in] Index The received order of offer packets.\r | |
1040 | \r | |
1041 | @retval EFI_SUCCESS Successfully retried a request for the bootfile name.\r | |
1042 | @retval EFI_DEVICE_ERROR Failed to retry the bootfile name.\r | |
1043 | \r | |
1044 | **/\r | |
1045 | EFI_STATUS\r | |
1046 | PxeBcRetryDhcp6Binl (\r | |
1047 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1048 | IN UINT32 Index\r | |
1049 | )\r | |
1050 | {\r | |
1051 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1052 | PXEBC_DHCP6_PACKET_CACHE *Offer;\r | |
1053 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
a3bcde70 HT |
1054 | EFI_STATUS Status;\r |
1055 | \r | |
1056 | ASSERT (Index < PXEBC_OFFER_MAX_NUM);\r | |
1057 | ASSERT (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeDhcpBinl ||\r | |
1058 | Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl);\r | |
1059 | \r | |
1060 | Mode = Private->PxeBc.Mode;\r | |
1061 | Private->IsDoDiscover = FALSE;\r | |
1062 | Offer = &Private->OfferBuffer[Index].Dhcp6;\r | |
be37315a | 1063 | if (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r |
d40002ba | 1064 | //\r |
1065 | // There is no BootFileUrl option in dhcp6 offer, so use servers multi-cast address instead.\r | |
1066 | //\r | |
1067 | CopyMem (\r | |
1068 | &Private->ServerIp.v6,\r | |
1069 | &mAllDhcpRelayAndServersAddress,\r | |
1070 | sizeof (EFI_IPv6_ADDRESS)\r | |
1071 | );\r | |
1072 | } else {\r | |
1073 | ASSERT (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1074 | //\r | |
1075 | // Parse out the next server address from the last offer, and store it\r | |
1076 | //\r | |
1077 | Status = PxeBcExtractBootFileUrl (\r | |
6692d519 | 1078 | Private,\r |
d40002ba | 1079 | &Private->BootFileName,\r |
1080 | &Private->ServerIp.v6,\r | |
1081 | (CHAR8 *) (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->Data),\r | |
1082 | NTOHS (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->OpLen)\r | |
1083 | );\r | |
1084 | if (EFI_ERROR (Status)) {\r | |
1085 | return Status;\r | |
1086 | }\r | |
a3bcde70 HT |
1087 | }\r |
1088 | \r | |
1089 | //\r | |
1090 | // Retry Dhcp6Binl again for the bootfile, and the reply cached into Private->ProxyOffer.\r | |
1091 | //\r | |
129b8b09 | 1092 | Status = PxeBcRequestBootService (Private, Index);\r |
1093 | \r | |
a3bcde70 HT |
1094 | if (EFI_ERROR (Status)) {\r |
1095 | return Status;\r | |
1096 | }\r | |
1097 | \r | |
1098 | Cache6 = &Private->ProxyOffer.Dhcp6;\r | |
1099 | Status = PxeBcParseDhcp6Packet (Cache6);\r | |
1100 | if (EFI_ERROR (Status)) {\r | |
1101 | return Status;\r | |
1102 | }\r | |
1103 | \r | |
1104 | if (Cache6->OfferType != PxeOfferTypeProxyPxe10 &&\r | |
1105 | Cache6->OfferType != PxeOfferTypeProxyWfm11a &&\r | |
1106 | Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
1107 | //\r | |
1108 | // This BINL ack doesn't have discovery option set or multicast option set\r | |
1109 | // or bootfile name specified.\r | |
1110 | //\r | |
1111 | return EFI_DEVICE_ERROR;\r | |
1112 | }\r | |
1113 | \r | |
1114 | Mode->ProxyOfferReceived = TRUE;\r | |
1115 | CopyMem (\r | |
1116 | &Mode->ProxyOffer.Dhcpv6,\r | |
1117 | &Cache6->Packet.Offer.Dhcp6,\r | |
1118 | Cache6->Packet.Offer.Length\r | |
1119 | );\r | |
1120 | \r | |
1121 | return EFI_SUCCESS;\r | |
1122 | }\r | |
1123 | \r | |
1124 | \r | |
1125 | /**\r | |
1126 | Cache all the received DHCPv6 offers, and set OfferIndex and OfferCount.\r | |
1127 | \r | |
1128 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1129 | @param[in] RcvdOffer The pointer to the received offer packet.\r | |
1130 | \r | |
a35dc649 FS |
1131 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
1132 | @retval Others Operation failed.\r | |
a3bcde70 | 1133 | **/\r |
a35dc649 | 1134 | EFI_STATUS\r |
a3bcde70 HT |
1135 | PxeBcCacheDhcp6Offer (\r |
1136 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1137 | IN EFI_DHCP6_PACKET *RcvdOffer\r | |
1138 | )\r | |
1139 | {\r | |
1140 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1141 | EFI_DHCP6_PACKET *Offer;\r | |
1142 | PXEBC_OFFER_TYPE OfferType;\r | |
a35dc649 | 1143 | EFI_STATUS Status;\r |
a3bcde70 HT |
1144 | \r |
1145 | Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;\r | |
1146 | Offer = &Cache6->Packet.Offer;\r | |
1147 | \r | |
1148 | //\r | |
1149 | // Cache the content of DHCPv6 packet firstly.\r | |
1150 | //\r | |
a35dc649 FS |
1151 | Status = PxeBcCacheDhcp6Packet (Offer, RcvdOffer);\r |
1152 | if (EFI_ERROR (Status)) {\r | |
1153 | return Status;\r | |
1154 | }\r | |
a3bcde70 HT |
1155 | \r |
1156 | //\r | |
1157 | // Validate the DHCPv6 packet, and parse the options and offer type.\r | |
1158 | //\r | |
1159 | if (EFI_ERROR (PxeBcParseDhcp6Packet (Cache6))) {\r | |
a35dc649 | 1160 | return EFI_ABORTED;\r |
a3bcde70 HT |
1161 | }\r |
1162 | \r | |
1163 | //\r | |
1164 | // Determine whether cache the current offer by type, and record OfferIndex and OfferCount.\r | |
1165 | //\r | |
1166 | OfferType = Cache6->OfferType;\r | |
1167 | ASSERT (OfferType < PxeOfferTypeMax);\r | |
1168 | ASSERT (Private->OfferCount[OfferType] < PXEBC_OFFER_MAX_NUM);\r | |
1169 | \r | |
1170 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1171 | //\r | |
1172 | // It's a proxy offer without yiaddr, including PXE10, WFM11a or BINL offer.\r | |
1173 | //\r | |
1174 | Private->IsProxyRecved = TRUE;\r | |
1175 | \r | |
1176 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1177 | //\r | |
1178 | // Cache all proxy BINL offers.\r | |
1179 | //\r | |
1180 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1181 | Private->OfferCount[OfferType]++;\r | |
f75a7f56 | 1182 | } else if ((OfferType == PxeOfferTypeProxyPxe10 || OfferType == PxeOfferTypeProxyWfm11a) &&\r |
8cdd559b | 1183 | Private->OfferCount[OfferType] < 1) {\r |
a3bcde70 HT |
1184 | //\r |
1185 | // Only cache the first PXE10/WFM11a offer, and discard the others.\r | |
1186 | //\r | |
1187 | Private->OfferIndex[OfferType][0] = Private->OfferNum;\r | |
1188 | Private->OfferCount[OfferType] = 1;\r | |
1189 | } else {\r | |
a35dc649 | 1190 | return EFI_ABORTED;\r |
a3bcde70 HT |
1191 | }\r |
1192 | } else {\r | |
1193 | //\r | |
1194 | // It's a DHCPv6 offer with yiaddr, and cache them all.\r | |
1195 | //\r | |
1196 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1197 | Private->OfferCount[OfferType]++;\r | |
1198 | }\r | |
1199 | \r | |
1200 | Private->OfferNum++;\r | |
a35dc649 FS |
1201 | \r |
1202 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
1203 | }\r |
1204 | \r | |
1205 | \r | |
1206 | /**\r | |
1207 | Select an DHCPv6 offer, and record SelectIndex and SelectProxyType.\r | |
1208 | \r | |
1209 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1210 | \r | |
1211 | **/\r | |
1212 | VOID\r | |
1213 | PxeBcSelectDhcp6Offer (\r | |
1214 | IN PXEBC_PRIVATE_DATA *Private\r | |
1215 | )\r | |
1216 | {\r | |
1217 | UINT32 Index;\r | |
1218 | UINT32 OfferIndex;\r | |
1219 | PXEBC_OFFER_TYPE OfferType;\r | |
1220 | \r | |
1221 | Private->SelectIndex = 0;\r | |
1222 | \r | |
1223 | if (Private->IsOfferSorted) {\r | |
1224 | //\r | |
1225 | // Select offer by default policy.\r | |
1226 | //\r | |
1227 | if (Private->OfferCount[PxeOfferTypeDhcpPxe10] > 0) {\r | |
1228 | //\r | |
1229 | // 1. DhcpPxe10 offer\r | |
1230 | //\r | |
1231 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpPxe10][0] + 1;\r | |
1232 | \r | |
1233 | } else if (Private->OfferCount[PxeOfferTypeDhcpWfm11a] > 0) {\r | |
1234 | //\r | |
1235 | // 2. DhcpWfm11a offer\r | |
1236 | //\r | |
1237 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpWfm11a][0] + 1;\r | |
1238 | \r | |
1239 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1240 | Private->OfferCount[PxeOfferTypeProxyPxe10] > 0) {\r | |
1241 | //\r | |
1242 | // 3. DhcpOnly offer and ProxyPxe10 offer.\r | |
1243 | //\r | |
1244 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1245 | Private->SelectProxyType = PxeOfferTypeProxyPxe10;\r | |
1246 | \r | |
1247 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1248 | Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0) {\r | |
1249 | //\r | |
1250 | // 4. DhcpOnly offer and ProxyWfm11a offer.\r | |
1251 | //\r | |
1252 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1253 | Private->SelectProxyType = PxeOfferTypeProxyWfm11a;\r | |
1254 | \r | |
1255 | } else if (Private->OfferCount[PxeOfferTypeDhcpBinl] > 0) {\r | |
1256 | //\r | |
1257 | // 5. DhcpBinl offer.\r | |
1258 | //\r | |
1259 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpBinl][0] + 1;\r | |
1260 | \r | |
1261 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1262 | Private->OfferCount[PxeOfferTypeProxyBinl] > 0) {\r | |
1263 | //\r | |
1264 | // 6. DhcpOnly offer and ProxyBinl offer.\r | |
1265 | //\r | |
1266 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1267 | Private->SelectProxyType = PxeOfferTypeProxyBinl;\r | |
1268 | \r | |
1269 | } else {\r | |
1270 | //\r | |
1271 | // 7. DhcpOnly offer with bootfilename.\r | |
1272 | //\r | |
1273 | for (Index = 0; Index < Private->OfferCount[PxeOfferTypeDhcpOnly]; Index++) {\r | |
1274 | OfferIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][Index];\r | |
1275 | if (Private->OfferBuffer[OfferIndex].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL) {\r | |
1276 | Private->SelectIndex = OfferIndex + 1;\r | |
1277 | break;\r | |
1278 | }\r | |
1279 | }\r | |
1280 | }\r | |
1281 | } else {\r | |
1282 | //\r | |
1283 | // Select offer by received order.\r | |
1284 | //\r | |
1285 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1286 | \r | |
1287 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1288 | \r | |
1289 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1290 | //\r | |
1291 | // Skip proxy offers\r | |
1292 | //\r | |
1293 | continue;\r | |
1294 | }\r | |
1295 | \r | |
1296 | if (!Private->IsProxyRecved &&\r | |
1297 | OfferType == PxeOfferTypeDhcpOnly &&\r | |
1298 | Private->OfferBuffer[Index].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
1299 | //\r | |
1300 | // Skip if DhcpOnly offer without any other proxy offers or bootfilename.\r | |
1301 | //\r | |
1302 | continue;\r | |
1303 | }\r | |
1304 | \r | |
1305 | Private->SelectIndex = Index + 1;\r | |
1306 | break;\r | |
1307 | }\r | |
1308 | }\r | |
1309 | }\r | |
1310 | \r | |
1311 | \r | |
1312 | /**\r | |
1313 | Handle the DHCPv6 offer packet.\r | |
1314 | \r | |
1315 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1316 | \r | |
92ec8772 ZL |
1317 | @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.\r |
1318 | @retval EFI_NO_RESPONSE No response to the following request packet.\r | |
1319 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
a35dc649 | 1320 | @retval EFI_BUFFER_TOO_SMALL Can't cache the offer pacet.\r |
a3bcde70 HT |
1321 | \r |
1322 | **/\r | |
1323 | EFI_STATUS\r | |
1324 | PxeBcHandleDhcp6Offer (\r | |
1325 | IN PXEBC_PRIVATE_DATA *Private\r | |
1326 | )\r | |
1327 | {\r | |
1328 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1329 | EFI_STATUS Status;\r | |
1330 | PXEBC_OFFER_TYPE OfferType;\r | |
1331 | UINT32 ProxyIndex;\r | |
1332 | UINT32 SelectIndex;\r | |
1333 | UINT32 Index;\r | |
1334 | \r | |
1335 | ASSERT (Private->SelectIndex > 0);\r | |
1336 | SelectIndex = (UINT32) (Private->SelectIndex - 1);\r | |
1337 | ASSERT (SelectIndex < PXEBC_OFFER_MAX_NUM);\r | |
1338 | Cache6 = &Private->OfferBuffer[SelectIndex].Dhcp6;\r | |
1339 | Status = EFI_SUCCESS;\r | |
1340 | \r | |
6692d519 ZL |
1341 | //\r |
1342 | // First try to cache DNS server address if DHCP6 offer provides.\r | |
1343 | //\r | |
1344 | if (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] != NULL) {\r | |
1345 | Private->DnsServer = AllocateZeroPool (NTOHS (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen));\r | |
92ec8772 ZL |
1346 | if (Private->DnsServer == NULL) {\r |
1347 | return EFI_OUT_OF_RESOURCES;\r | |
1348 | }\r | |
6692d519 ZL |
1349 | CopyMem (Private->DnsServer, Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, sizeof (EFI_IPv6_ADDRESS));\r |
1350 | }\r | |
1351 | \r | |
a3bcde70 HT |
1352 | if (Cache6->OfferType == PxeOfferTypeDhcpBinl) {\r |
1353 | //\r | |
1354 | // DhcpBinl offer is selected, so need try to request bootfilename by this offer.\r | |
1355 | //\r | |
1356 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, SelectIndex))) {\r | |
1357 | Status = EFI_NO_RESPONSE;\r | |
1358 | }\r | |
1359 | } else if (Cache6->OfferType == PxeOfferTypeDhcpOnly) {\r | |
1360 | \r | |
1361 | if (Private->IsProxyRecved) {\r | |
1362 | //\r | |
1363 | // DhcpOnly offer is selected, so need try to request bootfilename.\r | |
1364 | //\r | |
1365 | ProxyIndex = 0;\r | |
1366 | if (Private->IsOfferSorted) {\r | |
1367 | //\r | |
1368 | // The proxy offer should be determined if select by default policy.\r | |
1369 | // IsOfferSorted means all offers are labeled by OfferIndex.\r | |
1370 | //\r | |
1371 | ASSERT (Private->OfferCount[Private->SelectProxyType] > 0);\r | |
1372 | \r | |
1373 | if (Private->SelectProxyType == PxeOfferTypeProxyBinl) {\r | |
1374 | //\r | |
1375 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1376 | //\r | |
1377 | for (Index = 0; Index < Private->OfferCount[Private->SelectProxyType]; Index++) {\r | |
1378 | \r | |
1379 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][Index];\r | |
1380 | if (!EFI_ERROR (PxeBcRetryDhcp6Binl (Private, ProxyIndex))) {\r | |
1381 | break;\r | |
1382 | }\r | |
1383 | }\r | |
1384 | if (Index == Private->OfferCount[Private->SelectProxyType]) {\r | |
1385 | Status = EFI_NO_RESPONSE;\r | |
1386 | }\r | |
1387 | } else {\r | |
1388 | //\r | |
1389 | // For other proxy offers (pxe10 or wfm11a), only one is buffered.\r | |
1390 | //\r | |
1391 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][0];\r | |
1392 | }\r | |
1393 | } else {\r | |
1394 | //\r | |
1395 | // The proxy offer should not be determined if select by received order.\r | |
1396 | //\r | |
1397 | Status = EFI_NO_RESPONSE;\r | |
1398 | \r | |
1399 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1400 | \r | |
1401 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1402 | \r | |
1403 | if (!IS_PROXY_OFFER (OfferType)) {\r | |
1404 | //\r | |
1405 | // Skip non proxy dhcp offers.\r | |
1406 | //\r | |
1407 | continue;\r | |
1408 | }\r | |
1409 | \r | |
1410 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1411 | //\r | |
1412 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1413 | //\r | |
1414 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, Index))) {\r | |
1415 | continue;\r | |
1416 | }\r | |
1417 | }\r | |
1418 | \r | |
1419 | Private->SelectProxyType = OfferType;\r | |
1420 | ProxyIndex = Index;\r | |
1421 | Status = EFI_SUCCESS;\r | |
1422 | break;\r | |
1423 | }\r | |
1424 | }\r | |
1425 | \r | |
1426 | if (!EFI_ERROR (Status) && Private->SelectProxyType != PxeOfferTypeProxyBinl) {\r | |
1427 | //\r | |
1428 | // Success to try to request by a ProxyPxe10 or ProxyWfm11a offer, copy and parse it.\r | |
1429 | //\r | |
a35dc649 | 1430 | Status = PxeBcCopyDhcp6Proxy (Private, ProxyIndex);\r |
a3bcde70 HT |
1431 | }\r |
1432 | } else {\r | |
1433 | //\r | |
5add2c55 | 1434 | // Otherwise, the bootfilename must be included in DhcpOnly offer.\r |
a3bcde70 HT |
1435 | //\r |
1436 | ASSERT (Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1437 | }\r | |
1438 | }\r | |
1439 | \r | |
1440 | if (!EFI_ERROR (Status)) {\r | |
1441 | //\r | |
1442 | // All PXE boot information is ready by now.\r | |
1443 | //\r | |
a35dc649 | 1444 | Status = PxeBcCopyDhcp6Ack (Private, &Private->DhcpAck.Dhcp6.Packet.Ack, TRUE);\r |
a3bcde70 HT |
1445 | Private->PxeBc.Mode->DhcpDiscoverValid = TRUE;\r |
1446 | }\r | |
1447 | \r | |
1448 | return Status;\r | |
1449 | }\r | |
1450 | \r | |
1451 | \r | |
1452 | /**\r | |
1453 | Unregister the address by Ip6Config protocol.\r | |
1454 | \r | |
1455 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1456 | \r | |
1457 | **/\r | |
1458 | VOID\r | |
1459 | PxeBcUnregisterIp6Address (\r | |
1460 | IN PXEBC_PRIVATE_DATA *Private\r | |
1461 | )\r | |
1462 | {\r | |
1463 | if (Private->Ip6Policy != PXEBC_IP6_POLICY_MAX) {\r | |
1464 | //\r | |
1465 | // PXE driver change the policy of IP6 driver, it's a chance to recover.\r | |
1466 | // Keep the point and there is no enough requirements to do recovery.\r | |
1467 | //\r | |
1468 | }\r | |
1469 | }\r | |
1470 | \r | |
ae97201c FS |
1471 | /**\r |
1472 | Check whether IP driver could route the message which will be sent to ServerIp address.\r | |
f75a7f56 | 1473 | \r |
ae97201c FS |
1474 | This function will check the IP6 route table every 1 seconds until specified timeout is expired, if a valid\r |
1475 | route is found in IP6 route table, the address will be filed in GatewayAddr and return.\r | |
1476 | \r | |
1477 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1478 | @param[in] TimeOutInSecond Timeout value in seconds.\r | |
1479 | @param[out] GatewayAddr Pointer to store the gateway IP address.\r | |
1480 | \r | |
1481 | @retval EFI_SUCCESS Found a valid gateway address successfully.\r | |
1482 | @retval EFI_TIMEOUT The operation is time out.\r | |
5add2c55 | 1483 | @retval Other Unexpected error happened.\r |
f75a7f56 | 1484 | \r |
ae97201c FS |
1485 | **/\r |
1486 | EFI_STATUS\r | |
1487 | PxeBcCheckRouteTable (\r | |
1488 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1489 | IN UINTN TimeOutInSecond,\r | |
1490 | OUT EFI_IPv6_ADDRESS *GatewayAddr\r | |
1491 | )\r | |
1492 | {\r | |
1493 | EFI_STATUS Status;\r | |
1494 | EFI_IP6_PROTOCOL *Ip6;\r | |
1495 | EFI_IP6_MODE_DATA Ip6ModeData;\r | |
1496 | UINTN Index;\r | |
1497 | EFI_EVENT TimeOutEvt;\r | |
1498 | UINTN RetryCount;\r | |
1499 | BOOLEAN GatewayIsFound;\r | |
1500 | \r | |
1501 | ASSERT (GatewayAddr != NULL);\r | |
1502 | ASSERT (Private != NULL);\r | |
1503 | \r | |
1504 | Ip6 = Private->Ip6;\r | |
1505 | GatewayIsFound = FALSE;\r | |
1506 | RetryCount = 0;\r | |
1507 | TimeOutEvt = NULL;\r | |
1508 | ZeroMem (GatewayAddr, sizeof (EFI_IPv6_ADDRESS));\r | |
1509 | \r | |
1510 | while (TRUE) {\r | |
1511 | Status = Ip6->GetModeData (Ip6, &Ip6ModeData, NULL, NULL);\r | |
1512 | if (EFI_ERROR (Status)) {\r | |
1513 | goto ON_EXIT;\r | |
1514 | }\r | |
1515 | \r | |
1516 | //\r | |
07f986f1 | 1517 | // Find out the gateway address which can route the message which send to ServerIp.\r |
ae97201c FS |
1518 | //\r |
1519 | for (Index = 0; Index < Ip6ModeData.RouteCount; Index++) {\r | |
1520 | if (NetIp6IsNetEqual (&Private->ServerIp.v6, &Ip6ModeData.RouteTable[Index].Destination, Ip6ModeData.RouteTable[Index].PrefixLength)) {\r | |
1521 | IP6_COPY_ADDRESS (GatewayAddr, &Ip6ModeData.RouteTable[Index].Gateway);\r | |
1522 | GatewayIsFound = TRUE;\r | |
1523 | break;\r | |
1524 | }\r | |
1525 | }\r | |
1526 | \r | |
1527 | if (Ip6ModeData.AddressList != NULL) {\r | |
1528 | FreePool (Ip6ModeData.AddressList);\r | |
1529 | }\r | |
1530 | if (Ip6ModeData.GroupTable != NULL) {\r | |
1531 | FreePool (Ip6ModeData.GroupTable);\r | |
1532 | }\r | |
1533 | if (Ip6ModeData.RouteTable != NULL) {\r | |
1534 | FreePool (Ip6ModeData.RouteTable);\r | |
1535 | }\r | |
1536 | if (Ip6ModeData.NeighborCache != NULL) {\r | |
1537 | FreePool (Ip6ModeData.NeighborCache);\r | |
1538 | }\r | |
1539 | if (Ip6ModeData.PrefixTable != NULL) {\r | |
1540 | FreePool (Ip6ModeData.PrefixTable);\r | |
1541 | }\r | |
1542 | if (Ip6ModeData.IcmpTypeList != NULL) {\r | |
1543 | FreePool (Ip6ModeData.IcmpTypeList);\r | |
1544 | }\r | |
f75a7f56 | 1545 | \r |
ae97201c FS |
1546 | if (GatewayIsFound || RetryCount == TimeOutInSecond) {\r |
1547 | break;\r | |
1548 | }\r | |
f75a7f56 | 1549 | \r |
ae97201c | 1550 | RetryCount++;\r |
f75a7f56 | 1551 | \r |
ae97201c FS |
1552 | //\r |
1553 | // Delay 1 second then recheck it again.\r | |
1554 | //\r | |
1555 | if (TimeOutEvt == NULL) {\r | |
1556 | Status = gBS->CreateEvent (\r | |
1557 | EVT_TIMER,\r | |
1558 | TPL_CALLBACK,\r | |
1559 | NULL,\r | |
1560 | NULL,\r | |
1561 | &TimeOutEvt\r | |
1562 | );\r | |
1563 | if (EFI_ERROR (Status)) {\r | |
1564 | goto ON_EXIT;\r | |
1565 | }\r | |
1566 | }\r | |
1567 | \r | |
1568 | Status = gBS->SetTimer (TimeOutEvt, TimerRelative, TICKS_PER_SECOND);\r | |
1569 | if (EFI_ERROR (Status)) {\r | |
1570 | goto ON_EXIT;\r | |
1571 | }\r | |
1572 | while (EFI_ERROR (gBS->CheckEvent (TimeOutEvt))) {\r | |
1573 | Ip6->Poll (Ip6);\r | |
1574 | }\r | |
1575 | }\r | |
f75a7f56 | 1576 | \r |
ae97201c FS |
1577 | ON_EXIT:\r |
1578 | if (TimeOutEvt != NULL) {\r | |
1579 | gBS->CloseEvent (TimeOutEvt);\r | |
1580 | }\r | |
f75a7f56 | 1581 | \r |
ae97201c FS |
1582 | if (GatewayIsFound) {\r |
1583 | Status = EFI_SUCCESS;\r | |
1584 | } else if (RetryCount == TimeOutInSecond) {\r | |
1585 | Status = EFI_TIMEOUT;\r | |
1586 | }\r | |
1587 | \r | |
f75a7f56 | 1588 | return Status;\r |
ae97201c | 1589 | }\r |
a3bcde70 HT |
1590 | \r |
1591 | /**\r | |
ae97201c | 1592 | Register the ready station address and gateway by Ip6Config protocol.\r |
a3bcde70 HT |
1593 | \r |
1594 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1595 | @param[in] Address The pointer to the ready address.\r | |
1596 | \r | |
5add2c55 | 1597 | @retval EFI_SUCCESS Registered the address successfully.\r |
a3bcde70 HT |
1598 | @retval Others Failed to register the address.\r |
1599 | \r | |
1600 | **/\r | |
1601 | EFI_STATUS\r | |
1602 | PxeBcRegisterIp6Address (\r | |
1603 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1604 | IN EFI_IPv6_ADDRESS *Address\r | |
1605 | )\r | |
1606 | {\r | |
1607 | EFI_IP6_PROTOCOL *Ip6;\r | |
1608 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1609 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1610 | EFI_IP6_CONFIG_MANUAL_ADDRESS CfgAddr;\r | |
ae97201c | 1611 | EFI_IPv6_ADDRESS GatewayAddr;\r |
a3bcde70 | 1612 | UINTN DataSize;\r |
a3bcde70 HT |
1613 | EFI_EVENT MappedEvt;\r |
1614 | EFI_STATUS Status;\r | |
07f986f1 | 1615 | BOOLEAN NoGateway;\r |
bf9f7cea FS |
1616 | EFI_IPv6_ADDRESS *Ip6Addr;\r |
1617 | UINTN Index;\r | |
a3bcde70 HT |
1618 | \r |
1619 | Status = EFI_SUCCESS;\r | |
a3bcde70 | 1620 | MappedEvt = NULL;\r |
bf9f7cea | 1621 | Ip6Addr = NULL;\r |
a3bcde70 HT |
1622 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r |
1623 | Ip6Cfg = Private->Ip6Cfg;\r | |
1624 | Ip6 = Private->Ip6;\r | |
07f986f1 | 1625 | NoGateway = FALSE;\r |
a3bcde70 HT |
1626 | \r |
1627 | ZeroMem (&CfgAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));\r | |
1628 | CopyMem (&CfgAddr.Address, Address, sizeof (EFI_IPv6_ADDRESS));\r | |
1629 | \r | |
ae97201c FS |
1630 | Status = Ip6->Configure (Ip6, &Private->Ip6CfgData);\r |
1631 | if (EFI_ERROR (Status)) {\r | |
1632 | goto ON_EXIT;\r | |
1633 | }\r | |
1634 | \r | |
a3bcde70 | 1635 | //\r |
ae97201c | 1636 | // Retrieve the gateway address from IP6 route table.\r |
a3bcde70 | 1637 | //\r |
ae97201c | 1638 | Status = PxeBcCheckRouteTable (Private, PXEBC_IP6_ROUTE_TABLE_TIMEOUT, &GatewayAddr);\r |
a3bcde70 | 1639 | if (EFI_ERROR (Status)) {\r |
07f986f1 | 1640 | NoGateway = TRUE;\r |
a3bcde70 | 1641 | }\r |
f75a7f56 | 1642 | \r |
a3bcde70 HT |
1643 | //\r |
1644 | // There is no channel between IP6 and PXE driver about address setting,\r | |
1645 | // so it has to set the new address by Ip6ConfigProtocol manually.\r | |
1646 | //\r | |
1647 | Policy = Ip6ConfigPolicyManual;\r | |
1648 | Status = Ip6Cfg->SetData (\r | |
1649 | Ip6Cfg,\r | |
1650 | Ip6ConfigDataTypePolicy,\r | |
1651 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1652 | &Policy\r | |
1653 | );\r | |
1654 | if (EFI_ERROR (Status)) {\r | |
1655 | //\r | |
1656 | // There is no need to recover later.\r | |
1657 | //\r | |
1658 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1659 | goto ON_EXIT;\r | |
1660 | }\r | |
1661 | \r | |
a3bcde70 HT |
1662 | //\r |
1663 | // Create a notify event to set address flag when DAD if IP6 driver succeeded.\r | |
1664 | //\r | |
1665 | Status = gBS->CreateEvent (\r | |
1666 | EVT_NOTIFY_SIGNAL,\r | |
1667 | TPL_NOTIFY,\r | |
1668 | PxeBcCommonNotify,\r | |
1669 | &Private->IsAddressOk,\r | |
1670 | &MappedEvt\r | |
1671 | );\r | |
1672 | if (EFI_ERROR (Status)) {\r | |
1673 | goto ON_EXIT;\r | |
1674 | }\r | |
1675 | \r | |
bf9f7cea | 1676 | Private->IsAddressOk = FALSE;\r |
a3bcde70 HT |
1677 | Status = Ip6Cfg->RegisterDataNotify (\r |
1678 | Ip6Cfg,\r | |
1679 | Ip6ConfigDataTypeManualAddress,\r | |
1680 | MappedEvt\r | |
1681 | );\r | |
1682 | if (EFI_ERROR(Status)) {\r | |
1683 | goto ON_EXIT;\r | |
1684 | }\r | |
1685 | \r | |
1686 | Status = Ip6Cfg->SetData (\r | |
1687 | Ip6Cfg,\r | |
1688 | Ip6ConfigDataTypeManualAddress,\r | |
1689 | sizeof(EFI_IP6_CONFIG_MANUAL_ADDRESS),\r | |
1690 | &CfgAddr\r | |
1691 | );\r | |
1692 | if (EFI_ERROR(Status) && Status != EFI_NOT_READY) {\r | |
1693 | goto ON_EXIT;\r | |
bf9f7cea FS |
1694 | } else if (Status == EFI_NOT_READY) {\r |
1695 | //\r | |
1696 | // Poll the network until the asynchronous process is finished.\r | |
1697 | //\r | |
1698 | while (!Private->IsAddressOk) {\r | |
1699 | Ip6->Poll (Ip6);\r | |
1700 | }\r | |
1701 | //\r | |
1702 | // Check whether the IP6 address setting is successed.\r | |
1703 | //\r | |
1704 | DataSize = 0;\r | |
1705 | Status = Ip6Cfg->GetData (\r | |
1706 | Ip6Cfg,\r | |
1707 | Ip6ConfigDataTypeManualAddress,\r | |
1708 | &DataSize,\r | |
1709 | NULL\r | |
1710 | );\r | |
1711 | if (Status != EFI_BUFFER_TOO_SMALL || DataSize == 0) {\r | |
1712 | Status = EFI_DEVICE_ERROR;\r | |
1713 | goto ON_EXIT;\r | |
1714 | }\r | |
a3bcde70 | 1715 | \r |
bf9f7cea FS |
1716 | Ip6Addr = AllocatePool (DataSize);\r |
1717 | if (Ip6Addr == NULL) {\r | |
1718 | return EFI_OUT_OF_RESOURCES;\r | |
1719 | }\r | |
1720 | Status = Ip6Cfg->GetData (\r | |
1721 | Ip6Cfg,\r | |
1722 | Ip6ConfigDataTypeManualAddress,\r | |
1723 | &DataSize,\r | |
1724 | (VOID*) Ip6Addr\r | |
1725 | );\r | |
1726 | if (EFI_ERROR (Status)) {\r | |
1727 | Status = EFI_DEVICE_ERROR;\r | |
1728 | goto ON_EXIT;\r | |
1729 | }\r | |
a3bcde70 | 1730 | \r |
bf9f7cea FS |
1731 | for (Index = 0; Index < DataSize / sizeof (EFI_IPv6_ADDRESS); Index++) {\r |
1732 | if (CompareMem (Ip6Addr + Index, Address, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
1733 | break;\r | |
1734 | }\r | |
1735 | }\r | |
1736 | if (Index == DataSize / sizeof (EFI_IPv6_ADDRESS)) {\r | |
1737 | Status = EFI_ABORTED;\r | |
1738 | goto ON_EXIT;\r | |
a3bcde70 HT |
1739 | }\r |
1740 | }\r | |
f75a7f56 | 1741 | \r |
ae97201c FS |
1742 | //\r |
1743 | // Set the default gateway address back if needed.\r | |
1744 | //\r | |
07f986f1 | 1745 | if (!NoGateway && !NetIp6IsUnspecifiedAddr (&GatewayAddr)) {\r |
ae97201c FS |
1746 | Status = Ip6Cfg->SetData (\r |
1747 | Ip6Cfg,\r | |
1748 | Ip6ConfigDataTypeGateway,\r | |
1749 | sizeof (EFI_IPv6_ADDRESS),\r | |
1750 | &GatewayAddr\r | |
1751 | );\r | |
1752 | if (EFI_ERROR (Status)) {\r | |
1753 | goto ON_EXIT;\r | |
1754 | }\r | |
1755 | }\r | |
1756 | \r | |
a3bcde70 HT |
1757 | ON_EXIT:\r |
1758 | if (MappedEvt != NULL) {\r | |
1759 | Ip6Cfg->UnregisterDataNotify (\r | |
1760 | Ip6Cfg,\r | |
1761 | Ip6ConfigDataTypeManualAddress,\r | |
1762 | MappedEvt\r | |
1763 | );\r | |
1764 | gBS->CloseEvent (MappedEvt);\r | |
1765 | }\r | |
bf9f7cea FS |
1766 | if (Ip6Addr != NULL) {\r |
1767 | FreePool (Ip6Addr);\r | |
a3bcde70 HT |
1768 | }\r |
1769 | return Status;\r | |
1770 | }\r | |
1771 | \r | |
ae97201c FS |
1772 | /**\r |
1773 | Set the IP6 policy to Automatic.\r | |
1774 | \r | |
1775 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1776 | \r | |
5add2c55 AC |
1777 | @retval EFI_SUCCESS Switch the IP policy successfully.\r |
1778 | @retval Others Unexpected error happened.\r | |
ae97201c FS |
1779 | \r |
1780 | **/\r | |
1781 | EFI_STATUS\r | |
1782 | PxeBcSetIp6Policy (\r | |
1783 | IN PXEBC_PRIVATE_DATA *Private\r | |
1784 | )\r | |
1785 | {\r | |
1786 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1787 | EFI_STATUS Status;\r | |
1788 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1789 | UINTN DataSize;\r | |
1790 | \r | |
1791 | Ip6Cfg = Private->Ip6Cfg;\r | |
1792 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r | |
1793 | \r | |
1794 | //\r | |
1795 | // Get and store the current policy of IP6 driver.\r | |
1796 | //\r | |
1797 | Status = Ip6Cfg->GetData (\r | |
1798 | Ip6Cfg,\r | |
1799 | Ip6ConfigDataTypePolicy,\r | |
1800 | &DataSize,\r | |
1801 | &Private->Ip6Policy\r | |
1802 | );\r | |
1803 | if (EFI_ERROR (Status)) {\r | |
1804 | return Status;\r | |
1805 | }\r | |
1806 | \r | |
1807 | if (Private->Ip6Policy == Ip6ConfigPolicyManual) {\r | |
1808 | Policy = Ip6ConfigPolicyAutomatic;\r | |
1809 | Status = Ip6Cfg->SetData (\r | |
1810 | Ip6Cfg,\r | |
1811 | Ip6ConfigDataTypePolicy,\r | |
1812 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1813 | &Policy\r | |
1814 | );\r | |
1815 | if (EFI_ERROR (Status)) {\r | |
1816 | //\r | |
1817 | // There is no need to recover later.\r | |
1818 | //\r | |
1819 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1820 | }\r | |
1821 | }\r | |
1822 | \r | |
1823 | return Status;\r | |
1824 | }\r | |
1825 | \r | |
1826 | /**\r | |
1827 | This function will register the station IP address and flush IP instance to start using the new IP address.\r | |
f75a7f56 | 1828 | \r |
ae97201c FS |
1829 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r |
1830 | \r | |
1831 | @retval EFI_SUCCESS The new IP address has been configured successfully.\r | |
1832 | @retval Others Failed to configure the address.\r | |
1833 | \r | |
1834 | **/\r | |
1835 | EFI_STATUS\r | |
1836 | PxeBcSetIp6Address (\r | |
1837 | IN PXEBC_PRIVATE_DATA *Private\r | |
1838 | )\r | |
1839 | {\r | |
1840 | EFI_STATUS Status;\r | |
1841 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
f75a7f56 | 1842 | \r |
ae97201c FS |
1843 | Dhcp6 = Private->Dhcp6;\r |
1844 | \r | |
1845 | CopyMem (&Private->StationIp.v6, &Private->TmpStationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1846 | CopyMem (&Private->PxeBc.Mode->StationIp.v6, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1847 | \r | |
1848 | Status = PxeBcRegisterIp6Address (Private, &Private->StationIp.v6);\r | |
1849 | if (EFI_ERROR (Status)) {\r | |
1850 | Dhcp6->Stop (Dhcp6);\r | |
1851 | return Status;\r | |
1852 | }\r | |
1853 | \r | |
1854 | Status = PxeBcFlushStationIp (Private, &Private->StationIp, NULL);\r | |
1855 | if (EFI_ERROR (Status)) {\r | |
1856 | PxeBcUnregisterIp6Address (Private);\r | |
1857 | Dhcp6->Stop (Dhcp6);\r | |
1858 | return Status;\r | |
1859 | }\r | |
1860 | \r | |
1861 | AsciiPrint ("\n Station IP address is ");\r | |
1862 | PxeBcShowIp6Addr (&Private->StationIp.v6);\r | |
1863 | \r | |
1864 | return EFI_SUCCESS;\r | |
1865 | }\r | |
a3bcde70 HT |
1866 | \r |
1867 | /**\r | |
1868 | EFI_DHCP6_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol driver\r | |
1869 | to intercept events that occurred in the configuration process.\r | |
1870 | \r | |
1871 | @param[in] This The pointer to the EFI DHCPv6 Protocol.\r | |
1872 | @param[in] Context The pointer to the context set by EFI_DHCP6_PROTOCOL.Configure().\r | |
1873 | @param[in] CurrentState The current operational state of the EFI DHCPv Protocol driver.\r | |
1874 | @param[in] Dhcp6Event The event that occurs in the current state, which usually means a\r | |
1875 | state transition.\r | |
1876 | @param[in] Packet The DHCPv6 packet that is going to be sent or was already received.\r | |
1877 | @param[out] NewPacket The packet that is used to replace the Packet above.\r | |
1878 | \r | |
1879 | @retval EFI_SUCCESS Told the EFI DHCPv6 Protocol driver to continue the DHCP process.\r | |
1880 | @retval EFI_NOT_READY Only used in the Dhcp6Selecting state. The EFI DHCPv6 Protocol\r | |
1881 | driver will continue to wait for more packets.\r | |
1882 | @retval EFI_ABORTED Told the EFI DHCPv6 Protocol driver to abort the current process.\r | |
1883 | \r | |
1884 | **/\r | |
1885 | EFI_STATUS\r | |
1886 | EFIAPI\r | |
1887 | PxeBcDhcp6CallBack (\r | |
1888 | IN EFI_DHCP6_PROTOCOL *This,\r | |
1889 | IN VOID *Context,\r | |
1890 | IN EFI_DHCP6_STATE CurrentState,\r | |
1891 | IN EFI_DHCP6_EVENT Dhcp6Event,\r | |
1892 | IN EFI_DHCP6_PACKET *Packet,\r | |
1893 | OUT EFI_DHCP6_PACKET **NewPacket OPTIONAL\r | |
1894 | )\r | |
1895 | {\r | |
1896 | PXEBC_PRIVATE_DATA *Private;\r | |
1897 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1898 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r | |
1899 | EFI_DHCP6_PACKET *SelectAd;\r | |
1900 | EFI_STATUS Status;\r | |
1901 | BOOLEAN Received;\r | |
1902 | \r | |
1903 | if ((Dhcp6Event != Dhcp6RcvdAdvertise) &&\r | |
1904 | (Dhcp6Event != Dhcp6SelectAdvertise) &&\r | |
1905 | (Dhcp6Event != Dhcp6SendSolicit) &&\r | |
1906 | (Dhcp6Event != Dhcp6SendRequest) &&\r | |
1907 | (Dhcp6Event != Dhcp6RcvdReply)) {\r | |
1908 | return EFI_SUCCESS;\r | |
1909 | }\r | |
1910 | \r | |
1911 | ASSERT (Packet != NULL);\r | |
1912 | \r | |
1913 | Private = (PXEBC_PRIVATE_DATA *) Context;\r | |
1914 | Mode = Private->PxeBc.Mode;\r | |
1915 | Callback = Private->PxeBcCallback;\r | |
1916 | \r | |
1917 | //\r | |
5add2c55 | 1918 | // Callback to user when any traffic occurred if has.\r |
a3bcde70 HT |
1919 | //\r |
1920 | if (Dhcp6Event != Dhcp6SelectAdvertise && Callback != NULL) {\r | |
1921 | Received = (BOOLEAN) (Dhcp6Event == Dhcp6RcvdAdvertise || Dhcp6Event == Dhcp6RcvdReply);\r | |
1922 | Status = Callback->Callback (\r | |
1923 | Callback,\r | |
1924 | Private->Function,\r | |
1925 | Received,\r | |
1926 | Packet->Length,\r | |
1927 | (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp6\r | |
1928 | );\r | |
1929 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r | |
1930 | return EFI_ABORTED;\r | |
1931 | }\r | |
1932 | }\r | |
1933 | \r | |
1934 | Status = EFI_SUCCESS;\r | |
1935 | \r | |
1936 | switch (Dhcp6Event) {\r | |
1937 | \r | |
1938 | case Dhcp6SendSolicit:\r | |
632dcfd6 FS |
1939 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r |
1940 | //\r | |
1941 | // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r | |
1942 | //\r | |
1943 | Status = EFI_ABORTED;\r | |
1944 | break;\r | |
1945 | }\r | |
f75a7f56 | 1946 | \r |
129b8b09 | 1947 | //\r |
1948 | // Record the first Solicate msg time\r | |
1949 | //\r | |
1950 | if (Private->SolicitTimes == 0) {\r | |
1951 | CalcElapsedTime (Private);\r | |
1952 | Private->SolicitTimes++;\r | |
1953 | }\r | |
a3bcde70 HT |
1954 | //\r |
1955 | // Cache the dhcp discover packet to mode data directly.\r | |
1956 | //\r | |
1957 | CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp6, Packet->Length);\r | |
1958 | break;\r | |
1959 | \r | |
1960 | case Dhcp6RcvdAdvertise:\r | |
1961 | Status = EFI_NOT_READY;\r | |
632dcfd6 FS |
1962 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r |
1963 | //\r | |
1964 | // Ignore the incoming packets which exceed the maximum length.\r | |
1965 | //\r | |
1966 | break;\r | |
1967 | }\r | |
a3bcde70 HT |
1968 | if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {\r |
1969 | //\r | |
1970 | // Cache the dhcp offers to OfferBuffer[] for select later, and record\r | |
1971 | // the OfferIndex and OfferCount.\r | |
1972 | //\r | |
1973 | PxeBcCacheDhcp6Offer (Private, Packet);\r | |
1974 | }\r | |
1975 | break;\r | |
1976 | \r | |
1977 | case Dhcp6SendRequest:\r | |
632dcfd6 FS |
1978 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r |
1979 | //\r | |
1980 | // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r | |
1981 | //\r | |
1982 | Status = EFI_ABORTED;\r | |
1983 | break;\r | |
1984 | }\r | |
f75a7f56 | 1985 | \r |
a3bcde70 HT |
1986 | //\r |
1987 | // Store the request packet as seed packet for discover.\r | |
1988 | //\r | |
1989 | if (Private->Dhcp6Request != NULL) {\r | |
1990 | FreePool (Private->Dhcp6Request);\r | |
1991 | }\r | |
1992 | Private->Dhcp6Request = AllocateZeroPool (Packet->Size);\r | |
1993 | if (Private->Dhcp6Request != NULL) {\r | |
1994 | CopyMem (Private->Dhcp6Request, Packet, Packet->Size);\r | |
1995 | }\r | |
1996 | break;\r | |
1997 | \r | |
1998 | case Dhcp6SelectAdvertise:\r | |
1999 | //\r | |
2000 | // Select offer by the default policy or by order, and record the SelectIndex\r | |
2001 | // and SelectProxyType.\r | |
2002 | //\r | |
2003 | PxeBcSelectDhcp6Offer (Private);\r | |
2004 | \r | |
2005 | if (Private->SelectIndex == 0) {\r | |
2006 | Status = EFI_ABORTED;\r | |
2007 | } else {\r | |
2008 | ASSERT (NewPacket != NULL);\r | |
2009 | SelectAd = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp6.Packet.Offer;\r | |
2010 | *NewPacket = AllocateZeroPool (SelectAd->Size);\r | |
2011 | ASSERT (*NewPacket != NULL);\r | |
9f4f29cb FS |
2012 | if (*NewPacket == NULL) {\r |
2013 | return EFI_ABORTED;\r | |
2014 | }\r | |
a3bcde70 HT |
2015 | CopyMem (*NewPacket, SelectAd, SelectAd->Size);\r |
2016 | }\r | |
2017 | break;\r | |
2018 | \r | |
2019 | case Dhcp6RcvdReply:\r | |
2020 | //\r | |
2021 | // Cache the dhcp ack to Private->Dhcp6Ack, but it's not the final ack in mode data\r | |
2022 | // without verification.\r | |
2023 | //\r | |
2024 | ASSERT (Private->SelectIndex != 0);\r | |
a35dc649 FS |
2025 | Status = PxeBcCopyDhcp6Ack (Private, Packet, FALSE);\r |
2026 | if (EFI_ERROR (Status)) {\r | |
2027 | Status = EFI_ABORTED;\r | |
2028 | }\r | |
a3bcde70 HT |
2029 | break;\r |
2030 | \r | |
2031 | default:\r | |
2032 | ASSERT (0);\r | |
2033 | }\r | |
2034 | \r | |
2035 | return Status;\r | |
2036 | }\r | |
2037 | \r | |
2038 | \r | |
2039 | /**\r | |
2040 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
2041 | \r | |
2042 | @param[in] Private The pointer to PxeBc private data.\r | |
2043 | @param[in] Type PxeBc option boot item type.\r | |
2044 | @param[in] Layer The pointer to option boot item layer.\r | |
2045 | @param[in] UseBis Use BIS or not.\r | |
2046 | @param[in] DestIp The pointer to the server address.\r | |
2047 | \r | |
2048 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
2049 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
2050 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
2051 | @retval Others Failed to discover the boot file.\r | |
2052 | \r | |
2053 | **/\r | |
2054 | EFI_STATUS\r | |
2055 | PxeBcDhcp6Discover (\r | |
2056 | IN PXEBC_PRIVATE_DATA *Private,\r | |
2057 | IN UINT16 Type,\r | |
2058 | IN UINT16 *Layer,\r | |
2059 | IN BOOLEAN UseBis,\r | |
2060 | IN EFI_IP_ADDRESS *DestIp\r | |
2061 | )\r | |
2062 | {\r | |
2063 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
2064 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
2065 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
2066 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r | |
2067 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
2068 | UINTN DiscoverLen;\r | |
2069 | EFI_DHCP6_PACKET *Request;\r | |
2070 | UINTN RequestLen;\r | |
2071 | EFI_DHCP6_PACKET *Reply;\r | |
2072 | UINT8 *RequestOpt;\r | |
2073 | UINT8 *DiscoverOpt;\r | |
2074 | UINTN ReadSize;\r | |
a3bcde70 HT |
2075 | UINT16 OpCode;\r |
2076 | UINT16 OpLen;\r | |
2077 | UINT32 Xid;\r | |
2078 | EFI_STATUS Status;\r | |
2079 | \r | |
2080 | PxeBc = &Private->PxeBc;\r | |
2081 | Mode = PxeBc->Mode;\r | |
2082 | Request = Private->Dhcp6Request;\r | |
2083 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
2084 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
a3bcde70 HT |
2085 | \r |
2086 | if (!UseBis && Layer != NULL) {\r | |
2087 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r | |
2088 | }\r | |
2089 | \r | |
2090 | if (Request == NULL) {\r | |
2091 | return EFI_DEVICE_ERROR;\r | |
2092 | }\r | |
2093 | \r | |
2094 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
2095 | if (Discover == NULL) {\r | |
2096 | return EFI_OUT_OF_RESOURCES;\r | |
2097 | }\r | |
2098 | \r | |
2099 | //\r | |
2100 | // Build the discover packet by the cached request packet before.\r | |
2101 | //\r | |
2102 | Xid = NET_RANDOM (NetRandomInitSeed ());\r | |
2103 | Discover->TransactionId = HTONL (Xid);\r | |
2104 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r | |
2105 | RequestOpt = Request->Dhcp6.Option;\r | |
2106 | DiscoverOpt = Discover->DhcpOptions;\r | |
2107 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
2108 | RequestLen = DiscoverLen;\r | |
2109 | \r | |
2110 | while (RequestLen < Request->Length) {\r | |
2111 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
2112 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
2113 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
2114 | OpCode != EFI_DHCP6_IA_TYPE_TA) {\r | |
2115 | //\r | |
2116 | // Copy all the options except IA option.\r | |
2117 | //\r | |
2118 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
2119 | DiscoverOpt += (OpLen + 4);\r | |
2120 | DiscoverLen += (OpLen + 4);\r | |
2121 | }\r | |
2122 | RequestOpt += (OpLen + 4);\r | |
2123 | RequestLen += (OpLen + 4);\r | |
2124 | }\r | |
2125 | \r | |
2126 | Status = PxeBc->UdpWrite (\r | |
2127 | PxeBc,\r | |
903d1fa9 | 2128 | 0,\r |
a3bcde70 HT |
2129 | &Private->ServerIp,\r |
2130 | &DestPort,\r | |
2131 | NULL,\r | |
2132 | &Private->StationIp,\r | |
2133 | &SrcPort,\r | |
2134 | NULL,\r | |
2135 | NULL,\r | |
2136 | &DiscoverLen,\r | |
2137 | (VOID *) Discover\r | |
2138 | );\r | |
2139 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 2140 | goto ON_ERROR;\r |
a3bcde70 HT |
2141 | }\r |
2142 | \r | |
2143 | //\r | |
2144 | // Cache the right PXE reply packet here, set valid flag later.\r | |
2145 | // Especially for PXE discover packet, store it into mode data here.\r | |
2146 | //\r | |
2147 | if (Private->IsDoDiscover) {\r | |
2148 | CopyMem (&Mode->PxeDiscover.Dhcpv6, Discover, DiscoverLen);\r | |
2149 | Reply = &Private->PxeReply.Dhcp6.Packet.Ack;\r | |
2150 | } else {\r | |
2151 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
2152 | }\r | |
2153 | ReadSize = (UINTN) Reply->Size;\r | |
2154 | \r | |
357af285 | 2155 | //\r |
2156 | // Start Udp6Read instance\r | |
2157 | //\r | |
2158 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
2159 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 2160 | goto ON_ERROR;\r |
357af285 | 2161 | }\r |
f75a7f56 | 2162 | \r |
a3bcde70 HT |
2163 | Status = PxeBc->UdpRead (\r |
2164 | PxeBc,\r | |
903d1fa9 FS |
2165 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
2166 | NULL,\r | |
a3bcde70 HT |
2167 | &SrcPort,\r |
2168 | &Private->ServerIp,\r | |
2169 | &DestPort,\r | |
2170 | NULL,\r | |
2171 | NULL,\r | |
2172 | &ReadSize,\r | |
2173 | (VOID *) &Reply->Dhcp6\r | |
2174 | );\r | |
357af285 | 2175 | //\r |
2176 | // Stop Udp6Read instance\r | |
2177 | //\r | |
2178 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
a3bcde70 | 2179 | if (EFI_ERROR (Status)) {\r |
2fad330f | 2180 | goto ON_ERROR;\r |
a3bcde70 HT |
2181 | }\r |
2182 | \r | |
2183 | return EFI_SUCCESS;\r | |
2fad330f FS |
2184 | \r |
2185 | ON_ERROR:\r | |
2186 | if (Discover != NULL) {\r | |
2187 | FreePool (Discover);\r | |
2188 | }\r | |
2189 | \r | |
2190 | return Status;\r | |
a3bcde70 HT |
2191 | }\r |
2192 | \r | |
2193 | \r | |
2194 | /**\r | |
2195 | Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.\r | |
2196 | \r | |
2197 | @param[in] Private The pointer to PxeBc private data.\r | |
2198 | @param[in] Dhcp6 The pointer to the EFI_DHCP6_PROTOCOL\r | |
2199 | \r | |
2200 | @retval EFI_SUCCESS The S.A.R.R. process successfully finished.\r | |
2201 | @retval Others Failed to finish the S.A.R.R. process.\r | |
2202 | \r | |
2203 | **/\r | |
2204 | EFI_STATUS\r | |
2205 | PxeBcDhcp6Sarr (\r | |
2206 | IN PXEBC_PRIVATE_DATA *Private,\r | |
2207 | IN EFI_DHCP6_PROTOCOL *Dhcp6\r | |
2208 | )\r | |
2209 | {\r | |
2210 | EFI_PXE_BASE_CODE_MODE *PxeMode;\r | |
2211 | EFI_DHCP6_CONFIG_DATA Config;\r | |
2212 | EFI_DHCP6_MODE_DATA Mode;\r | |
2213 | EFI_DHCP6_RETRANSMISSION *Retransmit;\r | |
2214 | EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_OPTION_MAX_NUM];\r | |
2215 | UINT8 Buffer[PXEBC_DHCP6_OPTION_MAX_SIZE];\r | |
2216 | UINT32 OptCount;\r | |
2217 | EFI_STATUS Status;\r | |
ed2bfecb | 2218 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r |
2219 | EFI_STATUS TimerStatus;\r | |
2220 | EFI_EVENT Timer;\r | |
2221 | UINT64 GetMappingTimeOut;\r | |
2222 | UINTN DataSize;\r | |
2223 | EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;\r | |
a3bcde70 HT |
2224 | \r |
2225 | Status = EFI_SUCCESS;\r | |
2226 | PxeMode = Private->PxeBc.Mode;\r | |
ed2bfecb | 2227 | Ip6Cfg = Private->Ip6Cfg;\r |
2228 | Timer = NULL;\r | |
a3bcde70 HT |
2229 | \r |
2230 | //\r | |
2231 | // Build option list for the request packet.\r | |
2232 | //\r | |
2233 | OptCount = PxeBcBuildDhcp6Options (Private, OptList, Buffer);\r | |
2234 | ASSERT (OptCount> 0);\r | |
2235 | \r | |
2236 | Retransmit = AllocateZeroPool (sizeof (EFI_DHCP6_RETRANSMISSION));\r | |
2237 | if (Retransmit == NULL) {\r | |
2238 | return EFI_OUT_OF_RESOURCES;\r | |
2239 | }\r | |
2240 | \r | |
2241 | ZeroMem (&Mode, sizeof (EFI_DHCP6_MODE_DATA));\r | |
2242 | ZeroMem (&Config, sizeof (EFI_DHCP6_CONFIG_DATA));\r | |
2243 | \r | |
2244 | Config.OptionCount = OptCount;\r | |
2245 | Config.OptionList = OptList;\r | |
2246 | Config.Dhcp6Callback = PxeBcDhcp6CallBack;\r | |
2247 | Config.CallbackContext = Private;\r | |
2248 | Config.IaInfoEvent = NULL;\r | |
2249 | Config.RapidCommit = FALSE;\r | |
2250 | Config.ReconfigureAccept = FALSE;\r | |
75dce340 | 2251 | Config.IaDescriptor.IaId = Private->IaId;\r |
a3bcde70 HT |
2252 | Config.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;\r |
2253 | Config.SolicitRetransmission = Retransmit;\r | |
2254 | Retransmit->Irt = 4;\r | |
2255 | Retransmit->Mrc = 4;\r | |
2256 | Retransmit->Mrt = 32;\r | |
2257 | Retransmit->Mrd = 60;\r | |
2258 | \r | |
2259 | //\r | |
2260 | // Configure the DHCPv6 instance for PXE boot.\r | |
2261 | //\r | |
2262 | Status = Dhcp6->Configure (Dhcp6, &Config);\r | |
ed2bfecb | 2263 | FreePool (Retransmit);\r |
a3bcde70 | 2264 | if (EFI_ERROR (Status)) {\r |
a3bcde70 HT |
2265 | return Status;\r |
2266 | }\r | |
2267 | \r | |
2268 | //\r | |
2269 | // Initialize the record fields for DHCPv6 offer in private data.\r | |
2270 | //\r | |
2271 | Private->IsProxyRecved = FALSE;\r | |
2272 | Private->OfferNum = 0;\r | |
2273 | Private->SelectIndex = 0;\r | |
2274 | ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));\r | |
2275 | ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));\r | |
2276 | \r | |
2277 | \r | |
2278 | //\r | |
2279 | // Start DHCPv6 S.A.R.R. process to acquire IPv6 address.\r | |
2280 | //\r | |
2281 | Status = Dhcp6->Start (Dhcp6);\r | |
ed2bfecb | 2282 | if (Status == EFI_NO_MAPPING) {\r |
2283 | //\r | |
2284 | // IP6 Linklocal address is not available for use, so stop current Dhcp process\r | |
2285 | // and wait for duplicate address detection to finish.\r | |
2286 | //\r | |
2287 | Dhcp6->Stop (Dhcp6);\r | |
2288 | \r | |
2289 | //\r | |
2290 | // Get Duplicate Address Detection Transmits count.\r | |
2291 | //\r | |
2292 | DataSize = sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS);\r | |
2293 | Status = Ip6Cfg->GetData (\r | |
2294 | Ip6Cfg,\r | |
2295 | Ip6ConfigDataTypeDupAddrDetectTransmits,\r | |
2296 | &DataSize,\r | |
2297 | &DadXmits\r | |
2298 | );\r | |
2299 | if (EFI_ERROR (Status)) {\r | |
2300 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2301 | return Status;\r | |
2302 | }\r | |
2303 | \r | |
2304 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
2305 | if (EFI_ERROR (Status)) {\r | |
2306 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2307 | return Status;\r | |
2308 | }\r | |
2309 | \r | |
2310 | GetMappingTimeOut = TICKS_PER_SECOND * DadXmits.DupAddrDetectTransmits + PXEBC_DAD_ADDITIONAL_DELAY;\r | |
2311 | Status = gBS->SetTimer (Timer, TimerRelative, GetMappingTimeOut);\r | |
2312 | if (EFI_ERROR (Status)) {\r | |
2313 | gBS->CloseEvent (Timer);\r | |
2314 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2315 | return Status;\r | |
2316 | }\r | |
2317 | \r | |
2318 | do {\r | |
f75a7f56 | 2319 | \r |
ed2bfecb | 2320 | TimerStatus = gBS->CheckEvent (Timer);\r |
2321 | if (!EFI_ERROR (TimerStatus)) {\r | |
2322 | Status = Dhcp6->Start (Dhcp6);\r | |
2323 | }\r | |
2324 | } while (TimerStatus == EFI_NOT_READY);\r | |
f75a7f56 | 2325 | \r |
ed2bfecb | 2326 | gBS->CloseEvent (Timer);\r |
2327 | }\r | |
a3bcde70 HT |
2328 | if (EFI_ERROR (Status)) {\r |
2329 | if (Status == EFI_ICMP_ERROR) {\r | |
2330 | PxeMode->IcmpErrorReceived = TRUE;\r | |
2331 | }\r | |
2332 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2333 | return Status;\r | |
2334 | }\r | |
2335 | \r | |
2336 | //\r | |
2337 | // Get the acquired IPv6 address and store them.\r | |
2338 | //\r | |
2339 | Status = Dhcp6->GetModeData (Dhcp6, &Mode, NULL);\r | |
2340 | if (EFI_ERROR (Status)) {\r | |
2341 | Dhcp6->Stop (Dhcp6);\r | |
2342 | return Status;\r | |
2343 | }\r | |
2344 | \r | |
bec55c33 | 2345 | ASSERT ((Mode.Ia != NULL) && (Mode.Ia->State == Dhcp6Bound));\r |
ae97201c FS |
2346 | //\r |
2347 | // DHCP6 doesn't have an option to specify the router address on the subnet, the only way to get the\r | |
2348 | // router address in IP6 is the router discovery mechanism (the RS and RA, which only be handled when\r | |
2349 | // the IP policy is Automatic). So we just hold the station IP address here and leave the IP policy as\r | |
f75a7f56 | 2350 | // Automatic, until we get the server IP address. This could let IP6 driver finish the router discovery\r |
ae97201c FS |
2351 | // to find a valid router address.\r |
2352 | //\r | |
2353 | CopyMem (&Private->TmpStationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));\r | |
ce22514e ZL |
2354 | if (Mode.ClientId != NULL) {\r |
2355 | FreePool (Mode.ClientId);\r | |
2356 | }\r | |
2357 | if (Mode.Ia != NULL) {\r | |
2358 | FreePool (Mode.Ia);\r | |
2359 | }\r | |
a3bcde70 HT |
2360 | //\r |
2361 | // Check the selected offer whether BINL retry is needed.\r | |
2362 | //\r | |
2363 | Status = PxeBcHandleDhcp6Offer (Private);\r | |
2364 | if (EFI_ERROR (Status)) {\r | |
a3bcde70 HT |
2365 | Dhcp6->Stop (Dhcp6);\r |
2366 | return Status;\r | |
2367 | }\r | |
f75a7f56 | 2368 | \r |
a3bcde70 HT |
2369 | return EFI_SUCCESS;\r |
2370 | }\r |