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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 HT |
6 | \r |
7 | This program and the accompanying materials\r | |
8 | are licensed and made available under the terms and conditions of the BSD License\r | |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php.\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include "PxeBcImpl.h"\r | |
18 | \r | |
d40002ba | 19 | //\r |
20 | // Well-known multi-cast address defined in section-24.1 of rfc-3315\r | |
21 | //\r | |
22 | // ALL_DHCP_Relay_Agents_and_Servers address: FF02::1:2\r | |
23 | //\r | |
24 | EFI_IPv6_ADDRESS mAllDhcpRelayAndServersAddress = {{0xFF, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2}};\r | |
a3bcde70 HT |
25 | \r |
26 | /**\r | |
27 | Parse out a DHCPv6 option by OptTag, and find the position in buffer.\r | |
28 | \r | |
29 | @param[in] Buffer The pointer to the option buffer.\r | |
30 | @param[in] Length Length of the option buffer.\r | |
31 | @param[in] OptTag The required option tag.\r | |
32 | \r | |
33 | @retval NULL Failed to parse the required option.\r | |
34 | @retval Others The postion of the required option in buffer.\r | |
35 | \r | |
36 | **/\r | |
37 | EFI_DHCP6_PACKET_OPTION *\r | |
38 | PxeBcParseDhcp6Options (\r | |
39 | IN UINT8 *Buffer,\r | |
40 | IN UINT32 Length,\r | |
41 | IN UINT16 OptTag\r | |
42 | )\r | |
43 | {\r | |
44 | EFI_DHCP6_PACKET_OPTION *Option;\r | |
45 | UINT32 Offset;\r | |
46 | \r | |
47 | Option = (EFI_DHCP6_PACKET_OPTION *) Buffer;\r | |
48 | Offset = 0;\r | |
49 | \r | |
50 | //\r | |
51 | // OpLen and OpCode here are both stored in network order.\r | |
52 | //\r | |
53 | while (Offset < Length) {\r | |
54 | \r | |
55 | if (NTOHS (Option->OpCode) == OptTag) {\r | |
56 | \r | |
57 | return Option;\r | |
58 | }\r | |
59 | \r | |
60 | Offset += (NTOHS(Option->OpLen) + 4);\r | |
61 | Option = (EFI_DHCP6_PACKET_OPTION *) (Buffer + Offset);\r | |
62 | }\r | |
63 | \r | |
64 | return NULL;\r | |
65 | }\r | |
66 | \r | |
67 | \r | |
68 | /**\r | |
69 | Build the options buffer for the DHCPv6 request packet.\r | |
70 | \r | |
71 | @param[in] Private The pointer to PxeBc private data.\r | |
72 | @param[out] OptList The pointer to the option pointer array.\r | |
73 | @param[in] Buffer The pointer to the buffer to contain the option list.\r | |
74 | \r | |
75 | @return Index The count of the built-in options.\r | |
76 | \r | |
77 | **/\r | |
78 | UINT32\r | |
79 | PxeBcBuildDhcp6Options (\r | |
80 | IN PXEBC_PRIVATE_DATA *Private,\r | |
81 | OUT EFI_DHCP6_PACKET_OPTION **OptList,\r | |
82 | IN UINT8 *Buffer\r | |
83 | )\r | |
84 | {\r | |
85 | PXEBC_DHCP6_OPTION_ENTRY OptEnt;\r | |
86 | UINT32 Index;\r | |
87 | UINT16 Value;\r | |
88 | \r | |
89 | Index = 0;\r | |
90 | OptList[0] = (EFI_DHCP6_PACKET_OPTION *) Buffer;\r | |
91 | \r | |
92 | //\r | |
93 | // Append client option request option\r | |
94 | //\r | |
142c00c3 | 95 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ORO);\r |
be37315a | 96 | OptList[Index]->OpLen = HTONS (8);\r |
a3bcde70 | 97 | OptEnt.Oro = (PXEBC_DHCP6_OPTION_ORO *) OptList[Index]->Data;\r |
142c00c3 ZL |
98 | OptEnt.Oro->OpCode[0] = HTONS(DHCP6_OPT_BOOT_FILE_URL);\r |
99 | OptEnt.Oro->OpCode[1] = HTONS(DHCP6_OPT_BOOT_FILE_PARAM);\r | |
6692d519 | 100 | OptEnt.Oro->OpCode[2] = HTONS(DHCP6_OPT_DNS_SERVERS);\r |
be37315a | 101 | OptEnt.Oro->OpCode[3] = HTONS(DHCP6_OPT_VENDOR_CLASS);\r |
a3bcde70 HT |
102 | Index++;\r |
103 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
104 | \r | |
105 | //\r | |
106 | // Append client network device interface option\r | |
107 | //\r | |
142c00c3 | 108 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_UNDI);\r |
852b6341 | 109 | OptList[Index]->OpLen = HTONS ((UINT16)3);\r |
a3bcde70 HT |
110 | OptEnt.Undi = (PXEBC_DHCP6_OPTION_UNDI *) OptList[Index]->Data;\r |
111 | \r | |
112 | if (Private->Nii != NULL) {\r | |
113 | OptEnt.Undi->Type = Private->Nii->Type;\r | |
114 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r | |
115 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r | |
116 | } else {\r | |
117 | OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r | |
118 | OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r | |
119 | OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r | |
120 | }\r | |
121 | \r | |
a3bcde70 HT |
122 | Index++;\r |
123 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
124 | \r | |
125 | //\r | |
126 | // Append client system architecture option\r | |
127 | //\r | |
142c00c3 | 128 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ARCH);\r |
a3bcde70 HT |
129 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_ARCH));\r |
130 | OptEnt.Arch = (PXEBC_DHCP6_OPTION_ARCH *) OptList[Index]->Data;\r | |
131 | Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r | |
132 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r | |
133 | Index++;\r | |
134 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
135 | \r | |
136 | //\r | |
137 | // Append vendor class option to store the PXE class identifier.\r | |
138 | //\r | |
142c00c3 | 139 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_VENDOR_CLASS);\r |
a3bcde70 HT |
140 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_VENDOR_CLASS));\r |
141 | OptEnt.VendorClass = (PXEBC_DHCP6_OPTION_VENDOR_CLASS *) OptList[Index]->Data;\r | |
142 | OptEnt.VendorClass->Vendor = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);\r | |
143 | OptEnt.VendorClass->ClassLen = HTONS ((UINT16) sizeof (PXEBC_CLASS_ID));\r | |
144 | CopyMem (\r | |
145 | &OptEnt.VendorClass->ClassId,\r | |
146 | DEFAULT_CLASS_ID_DATA,\r | |
147 | sizeof (PXEBC_CLASS_ID)\r | |
148 | );\r | |
149 | PxeBcUintnToAscDecWithFormat (\r | |
150 | EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE,\r | |
151 | OptEnt.VendorClass->ClassId.ArchitectureType,\r | |
152 | sizeof (OptEnt.VendorClass->ClassId.ArchitectureType)\r | |
153 | );\r | |
154 | \r | |
155 | if (Private->Nii != NULL) {\r | |
156 | CopyMem (\r | |
157 | OptEnt.VendorClass->ClassId.InterfaceName,\r | |
158 | Private->Nii->StringId,\r | |
159 | sizeof (OptEnt.VendorClass->ClassId.InterfaceName)\r | |
160 | );\r | |
161 | PxeBcUintnToAscDecWithFormat (\r | |
162 | Private->Nii->MajorVer,\r | |
163 | OptEnt.VendorClass->ClassId.UndiMajor,\r | |
164 | sizeof (OptEnt.VendorClass->ClassId.UndiMajor)\r | |
165 | );\r | |
166 | PxeBcUintnToAscDecWithFormat (\r | |
167 | Private->Nii->MinorVer,\r | |
168 | OptEnt.VendorClass->ClassId.UndiMinor,\r | |
169 | sizeof (OptEnt.VendorClass->ClassId.UndiMinor)\r | |
170 | );\r | |
171 | }\r | |
172 | \r | |
173 | Index++;\r | |
174 | \r | |
175 | return Index;\r | |
176 | }\r | |
177 | \r | |
178 | \r | |
179 | /**\r | |
180 | Cache the DHCPv6 packet.\r | |
181 | \r | |
182 | @param[in] Dst The pointer to the cache buffer for DHCPv6 packet.\r | |
183 | @param[in] Src The pointer to the DHCPv6 packet to be cached.\r | |
184 | \r | |
a35dc649 FS |
185 | @retval EFI_SUCCESS Packet is copied.\r |
186 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
187 | \r | |
a3bcde70 | 188 | **/\r |
a35dc649 | 189 | EFI_STATUS\r |
a3bcde70 HT |
190 | PxeBcCacheDhcp6Packet (\r |
191 | IN EFI_DHCP6_PACKET *Dst,\r | |
192 | IN EFI_DHCP6_PACKET *Src\r | |
193 | )\r | |
194 | {\r | |
a35dc649 FS |
195 | if (Dst->Size < Src->Length) {\r |
196 | return EFI_BUFFER_TOO_SMALL;\r | |
197 | }\r | |
a3bcde70 HT |
198 | \r |
199 | CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);\r | |
200 | Dst->Length = Src->Length;\r | |
a35dc649 FS |
201 | \r |
202 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
203 | }\r |
204 | \r | |
6692d519 ZL |
205 | /**\r |
206 | Retrieve the boot server address using the EFI_DNS6_PROTOCOL.\r | |
207 | \r | |
208 | @param[in] Private Pointer to PxeBc private data.\r | |
209 | @param[in] HostName Pointer to buffer containing hostname.\r | |
210 | @param[out] IpAddress On output, pointer to buffer containing IPv6 address.\r | |
211 | \r | |
212 | @retval EFI_SUCCESS Operation succeeded.\r | |
213 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
214 | @retval EFI_DEVICE_ERROR An unexpected network error occurred.\r | |
215 | @retval Others Other errors as indicated.\r | |
f75a7f56 | 216 | \r |
6692d519 ZL |
217 | **/\r |
218 | EFI_STATUS\r | |
219 | PxeBcDns6 (\r | |
220 | IN PXEBC_PRIVATE_DATA *Private,\r | |
221 | IN CHAR16 *HostName,\r | |
f75a7f56 | 222 | OUT EFI_IPv6_ADDRESS *IpAddress\r |
6692d519 ZL |
223 | )\r |
224 | {\r | |
225 | EFI_STATUS Status;\r | |
226 | EFI_DNS6_PROTOCOL *Dns6;\r | |
227 | EFI_DNS6_CONFIG_DATA Dns6ConfigData;\r | |
228 | EFI_DNS6_COMPLETION_TOKEN Token;\r | |
229 | EFI_HANDLE Dns6Handle;\r | |
230 | EFI_IPv6_ADDRESS *DnsServerList;\r | |
231 | BOOLEAN IsDone;\r | |
f75a7f56 | 232 | \r |
6692d519 ZL |
233 | Dns6 = NULL;\r |
234 | Dns6Handle = NULL;\r | |
235 | DnsServerList = Private->DnsServer;\r | |
236 | ZeroMem (&Token, sizeof (EFI_DNS6_COMPLETION_TOKEN));\r | |
237 | \r | |
238 | //\r | |
239 | // Create a DNSv6 child instance and get the protocol.\r | |
240 | //\r | |
241 | Status = NetLibCreateServiceChild (\r | |
242 | Private->Controller,\r | |
243 | Private->Image,\r | |
244 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
245 | &Dns6Handle\r | |
246 | );\r | |
247 | if (EFI_ERROR (Status)) {\r | |
248 | goto Exit;\r | |
f75a7f56 LG |
249 | }\r |
250 | \r | |
6692d519 ZL |
251 | Status = gBS->OpenProtocol (\r |
252 | Dns6Handle,\r | |
253 | &gEfiDns6ProtocolGuid,\r | |
254 | (VOID **) &Dns6,\r | |
255 | Private->Image,\r | |
256 | Private->Controller,\r | |
257 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
258 | );\r | |
259 | if (EFI_ERROR (Status)) {\r | |
260 | goto Exit;\r | |
261 | }\r | |
262 | \r | |
263 | //\r | |
264 | // Configure DNS6 instance for the DNS server address and protocol.\r | |
265 | //\r | |
266 | ZeroMem (&Dns6ConfigData, sizeof (EFI_DNS6_CONFIG_DATA));\r | |
267 | Dns6ConfigData.DnsServerCount = 1;\r | |
268 | Dns6ConfigData.DnsServerList = DnsServerList;\r | |
269 | Dns6ConfigData.EnableDnsCache = TRUE;\r | |
270 | Dns6ConfigData.Protocol = EFI_IP_PROTO_UDP;\r | |
271 | IP6_COPY_ADDRESS (&Dns6ConfigData.StationIp, &Private->TmpStationIp.v6);\r | |
272 | Status = Dns6->Configure (\r | |
273 | Dns6,\r | |
274 | &Dns6ConfigData\r | |
275 | );\r | |
276 | if (EFI_ERROR (Status)) {\r | |
277 | goto Exit;\r | |
278 | }\r | |
279 | \r | |
280 | Token.Status = EFI_NOT_READY;\r | |
281 | IsDone = FALSE;\r | |
282 | //\r | |
283 | // Create event to set the IsDone flag when name resolution is finished.\r | |
284 | //\r | |
285 | Status = gBS->CreateEvent (\r | |
286 | EVT_NOTIFY_SIGNAL,\r | |
287 | TPL_NOTIFY,\r | |
288 | PxeBcCommonNotify,\r | |
289 | &IsDone,\r | |
290 | &Token.Event\r | |
291 | );\r | |
292 | if (EFI_ERROR (Status)) {\r | |
293 | goto Exit;\r | |
294 | }\r | |
295 | \r | |
296 | //\r | |
297 | // Start asynchronous name resolution.\r | |
298 | //\r | |
299 | Status = Dns6->HostNameToIp (Dns6, HostName, &Token);\r | |
300 | if (EFI_ERROR (Status)) {\r | |
301 | goto Exit;\r | |
302 | }\r | |
303 | \r | |
304 | while (!IsDone) {\r | |
305 | Dns6->Poll (Dns6);\r | |
306 | }\r | |
307 | \r | |
308 | //\r | |
309 | // Name resolution is done, check result.\r | |
310 | //\r | |
f75a7f56 | 311 | Status = Token.Status;\r |
6692d519 ZL |
312 | if (!EFI_ERROR (Status)) {\r |
313 | if (Token.RspData.H2AData == NULL) {\r | |
314 | Status = EFI_DEVICE_ERROR;\r | |
315 | goto Exit;\r | |
316 | }\r | |
317 | if (Token.RspData.H2AData->IpCount == 0 || Token.RspData.H2AData->IpList == NULL) {\r | |
318 | Status = EFI_DEVICE_ERROR;\r | |
319 | goto Exit;\r | |
320 | }\r | |
321 | //\r | |
322 | // We just return the first IPv6 address from DNS protocol.\r | |
323 | //\r | |
324 | IP6_COPY_ADDRESS (IpAddress, Token.RspData.H2AData->IpList);\r | |
325 | Status = EFI_SUCCESS;\r | |
326 | }\r | |
f75a7f56 | 327 | \r |
6692d519 ZL |
328 | Exit:\r |
329 | FreePool (HostName);\r | |
330 | \r | |
331 | if (Token.Event != NULL) {\r | |
332 | gBS->CloseEvent (Token.Event);\r | |
333 | }\r | |
334 | if (Token.RspData.H2AData != NULL) {\r | |
335 | if (Token.RspData.H2AData->IpList != NULL) {\r | |
336 | FreePool (Token.RspData.H2AData->IpList);\r | |
337 | }\r | |
338 | FreePool (Token.RspData.H2AData);\r | |
339 | }\r | |
340 | \r | |
341 | if (Dns6 != NULL) {\r | |
342 | Dns6->Configure (Dns6, NULL);\r | |
f75a7f56 | 343 | \r |
6692d519 ZL |
344 | gBS->CloseProtocol (\r |
345 | Dns6Handle,\r | |
346 | &gEfiDns6ProtocolGuid,\r | |
347 | Private->Image,\r | |
348 | Private->Controller\r | |
349 | );\r | |
350 | }\r | |
351 | \r | |
352 | if (Dns6Handle != NULL) {\r | |
353 | NetLibDestroyServiceChild (\r | |
354 | Private->Controller,\r | |
355 | Private->Image,\r | |
356 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
357 | Dns6Handle\r | |
358 | );\r | |
359 | }\r | |
360 | \r | |
361 | if (DnsServerList != NULL) {\r | |
362 | FreePool (DnsServerList);\r | |
363 | }\r | |
f75a7f56 LG |
364 | \r |
365 | return Status;\r | |
6692d519 | 366 | }\r |
a3bcde70 HT |
367 | \r |
368 | /**\r | |
369 | Parse the Boot File URL option.\r | |
370 | \r | |
6692d519 | 371 | @param[in] Private Pointer to PxeBc private data.\r |
a3bcde70 HT |
372 | @param[out] FileName The pointer to the boot file name.\r |
373 | @param[in, out] SrvAddr The pointer to the boot server address.\r | |
374 | @param[in] BootFile The pointer to the boot file URL option data.\r | |
375 | @param[in] Length The length of the boot file URL option data.\r | |
376 | \r | |
377 | @retval EFI_ABORTED User cancel operation.\r | |
378 | @retval EFI_SUCCESS Selected the boot menu successfully.\r | |
379 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r | |
380 | \r | |
381 | **/\r | |
382 | EFI_STATUS\r | |
383 | PxeBcExtractBootFileUrl (\r | |
6692d519 | 384 | IN PXEBC_PRIVATE_DATA *Private,\r |
a3bcde70 HT |
385 | OUT UINT8 **FileName,\r |
386 | IN OUT EFI_IPv6_ADDRESS *SrvAddr,\r | |
387 | IN CHAR8 *BootFile,\r | |
388 | IN UINT16 Length\r | |
389 | )\r | |
390 | {\r | |
391 | UINT16 PrefixLen;\r | |
01d89e9c | 392 | CHAR8 *BootFileNamePtr;\r |
393 | CHAR8 *BootFileName;\r | |
a3bcde70 HT |
394 | UINT16 BootFileNameLen;\r |
395 | CHAR8 *TmpStr;\r | |
129b8b09 | 396 | CHAR8 TmpChar;\r |
a3bcde70 HT |
397 | CHAR8 *ServerAddressOption;\r |
398 | CHAR8 *ServerAddress;\r | |
eb2710af | 399 | CHAR8 *ModeStr;\r |
6692d519 ZL |
400 | CHAR16 *HostName;\r |
401 | BOOLEAN IpExpressedUrl;\r | |
402 | UINTN Len;\r | |
a3bcde70 HT |
403 | EFI_STATUS Status;\r |
404 | \r | |
6692d519 | 405 | IpExpressedUrl = TRUE;\r |
a3bcde70 HT |
406 | //\r |
407 | // The format of the Boot File URL option is:\r | |
408 | //\r | |
409 | // 0 1 2 3\r | |
410 | // 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 | |
411 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
412 | // | OPT_BOOTFILE_URL | option-len |\r | |
413 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
414 | // | |\r | |
415 | // . bootfile-url (variable length) .\r | |
416 | // | |\r | |
417 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
418 | //\r | |
419 | \r | |
420 | //\r | |
6692d519 ZL |
421 | // Based upon RFC 5970 and UEFI 2.6, bootfile-url format can be\r |
422 | // tftp://[SERVER_ADDRESS]/BOOTFILE_NAME or tftp://domain_name/BOOTFILE_NAME\r | |
a3bcde70 HT |
423 | // As an example where the BOOTFILE_NAME is the EFI loader and\r |
424 | // SERVER_ADDRESS is the ASCII encoding of an IPV6 address.\r | |
425 | //\r | |
426 | PrefixLen = (UINT16) AsciiStrLen (PXEBC_DHCP6_BOOT_FILE_URL_PREFIX);\r | |
427 | \r | |
428 | if (Length <= PrefixLen ||\r | |
429 | CompareMem (BootFile, PXEBC_DHCP6_BOOT_FILE_URL_PREFIX, PrefixLen) != 0) {\r | |
430 | return EFI_NOT_FOUND;\r | |
431 | }\r | |
432 | \r | |
433 | BootFile = BootFile + PrefixLen;\r | |
434 | Length = (UINT16) (Length - PrefixLen);\r | |
435 | \r | |
436 | TmpStr = (CHAR8 *) AllocateZeroPool (Length + 1);\r | |
437 | if (TmpStr == NULL) {\r | |
438 | return EFI_OUT_OF_RESOURCES;\r | |
439 | }\r | |
440 | \r | |
441 | CopyMem (TmpStr, BootFile, Length);\r | |
442 | TmpStr[Length] = '\0';\r | |
443 | \r | |
444 | //\r | |
445 | // Get the part of SERVER_ADDRESS string.\r | |
446 | //\r | |
447 | ServerAddressOption = TmpStr;\r | |
6692d519 ZL |
448 | if (*ServerAddressOption == PXEBC_ADDR_START_DELIMITER) {\r |
449 | ServerAddressOption ++;\r | |
450 | ServerAddress = ServerAddressOption;\r | |
451 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r | |
452 | ServerAddress++;\r | |
453 | }\r | |
f75a7f56 | 454 | \r |
6692d519 ZL |
455 | if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r |
456 | FreePool (TmpStr);\r | |
457 | return EFI_INVALID_PARAMETER;\r | |
458 | }\r | |
f75a7f56 | 459 | \r |
6692d519 | 460 | *ServerAddress = '\0';\r |
f75a7f56 | 461 | \r |
6692d519 ZL |
462 | //\r |
463 | // Convert the string of server address to Ipv6 address format and store it.\r | |
464 | //\r | |
465 | Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);\r | |
466 | if (EFI_ERROR (Status)) {\r | |
467 | FreePool (TmpStr);\r | |
468 | return Status;\r | |
469 | }\r | |
a3bcde70 | 470 | \r |
6692d519 ZL |
471 | } else {\r |
472 | IpExpressedUrl = FALSE;\r | |
473 | ServerAddress = ServerAddressOption;\r | |
474 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r | |
475 | ServerAddress++;\r | |
476 | }\r | |
a3bcde70 | 477 | \r |
6692d519 ZL |
478 | if (*ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r |
479 | FreePool (TmpStr);\r | |
480 | return EFI_INVALID_PARAMETER;\r | |
481 | }\r | |
482 | *ServerAddress = '\0';\r | |
a3bcde70 | 483 | \r |
6692d519 ZL |
484 | Len = AsciiStrSize (ServerAddressOption);\r |
485 | HostName = AllocateZeroPool (Len * sizeof (CHAR16));\r | |
486 | if (HostName == NULL) {\r | |
487 | FreePool (TmpStr);\r | |
488 | return EFI_OUT_OF_RESOURCES;\r | |
489 | }\r | |
490 | AsciiStrToUnicodeStrS (\r | |
491 | ServerAddressOption,\r | |
492 | HostName,\r | |
493 | Len\r | |
494 | );\r | |
a3bcde70 | 495 | \r |
6692d519 ZL |
496 | //\r |
497 | // Perform DNS resolution.\r | |
498 | //\r | |
499 | Status = PxeBcDns6 (Private,HostName, SrvAddr);\r | |
500 | if (EFI_ERROR (Status)) {\r | |
501 | FreePool (TmpStr);\r | |
502 | return Status;\r | |
503 | }\r | |
a3bcde70 HT |
504 | }\r |
505 | \r | |
506 | //\r | |
507 | // Get the part of BOOTFILE_NAME string.\r | |
508 | //\r | |
01d89e9c | 509 | BootFileNamePtr = (CHAR8*)((UINTN)ServerAddress + 1);\r |
6692d519 ZL |
510 | if (IpExpressedUrl) {\r |
511 | if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {\r | |
512 | FreePool (TmpStr);\r | |
513 | return EFI_INVALID_PARAMETER;\r | |
514 | }\r | |
515 | ++BootFileNamePtr;\r | |
a3bcde70 HT |
516 | }\r |
517 | \r | |
a3bcde70 HT |
518 | BootFileNameLen = (UINT16)(Length - (UINT16) ((UINTN)BootFileNamePtr - (UINTN)TmpStr) + 1);\r |
519 | if (BootFileNameLen != 0 || FileName != NULL) {\r | |
eb2710af | 520 | //\r |
521 | // Remove trailing mode=octet if present and ignore. All other modes are\r | |
522 | // invalid for netboot6, so reject them.\r | |
523 | //\r | |
524 | ModeStr = AsciiStrStr (BootFileNamePtr, ";mode=octet");\r | |
525 | if (ModeStr != NULL && *(ModeStr + AsciiStrLen (";mode=octet")) == '\0') {\r | |
526 | *ModeStr = '\0';\r | |
527 | } else if (AsciiStrStr (BootFileNamePtr, ";mode=") != NULL) {\r | |
2fad330f | 528 | FreePool (TmpStr);\r |
eb2710af | 529 | return EFI_INVALID_PARAMETER;\r |
530 | }\r | |
531 | \r | |
129b8b09 | 532 | //\r |
533 | // Extract boot file name from URL.\r | |
534 | //\r | |
01d89e9c | 535 | BootFileName = (CHAR8 *) AllocateZeroPool (BootFileNameLen);\r |
a3bcde70 HT |
536 | if (BootFileName == NULL) {\r |
537 | FreePool (TmpStr);\r | |
538 | return EFI_OUT_OF_RESOURCES;\r | |
539 | }\r | |
01d89e9c | 540 | *FileName = (UINT8*) BootFileName;\r |
a3bcde70 | 541 | \r |
129b8b09 | 542 | //\r |
543 | // Decode percent-encoding in boot file name.\r | |
544 | //\r | |
545 | while (*BootFileNamePtr != '\0') {\r | |
546 | if (*BootFileNamePtr == '%') {\r | |
547 | TmpChar = *(BootFileNamePtr+ 3);\r | |
548 | *(BootFileNamePtr+ 3) = '\0';\r | |
2f3f1a64 | 549 | *BootFileName = (UINT8) AsciiStrHexToUintn ((CHAR8*)(BootFileNamePtr + 1));\r |
129b8b09 | 550 | BootFileName++;\r |
551 | *(BootFileNamePtr+ 3) = TmpChar;\r | |
552 | BootFileNamePtr += 3;\r | |
553 | } else {\r | |
554 | *BootFileName = *BootFileNamePtr;\r | |
555 | BootFileName++;\r | |
556 | BootFileNamePtr++;\r | |
557 | }\r | |
558 | }\r | |
559 | *BootFileName = '\0';\r | |
560 | }\r | |
a3bcde70 HT |
561 | \r |
562 | FreePool (TmpStr);\r | |
563 | \r | |
564 | return EFI_SUCCESS;\r | |
565 | }\r | |
566 | \r | |
567 | \r | |
568 | /**\r | |
569 | Parse the Boot File Parameter option.\r | |
570 | \r | |
571 | @param[in] BootFilePara The pointer to boot file parameter option data.\r | |
572 | @param[out] BootFileSize The pointer to the parsed boot file size.\r | |
573 | \r | |
574 | @retval EFI_SUCCESS Successfully obtained the boot file size from parameter option.\r | |
575 | @retval EFI_NOT_FOUND Failed to extract the boot file size from parameter option.\r | |
576 | \r | |
577 | **/\r | |
578 | EFI_STATUS\r | |
579 | PxeBcExtractBootFileParam (\r | |
580 | IN CHAR8 *BootFilePara,\r | |
581 | OUT UINT16 *BootFileSize\r | |
582 | )\r | |
583 | {\r | |
584 | UINT16 Length;\r | |
585 | UINT8 Index;\r | |
586 | UINT8 Digit;\r | |
587 | UINT32 Size;\r | |
588 | \r | |
589 | CopyMem (&Length, BootFilePara, sizeof (UINT16));\r | |
590 | Length = NTOHS (Length);\r | |
591 | \r | |
592 | //\r | |
593 | // The BootFile Size should be 1~5 byte ASCII strings\r | |
594 | //\r | |
595 | if (Length < 1 || Length > 5) {\r | |
596 | return EFI_NOT_FOUND;\r | |
597 | }\r | |
598 | \r | |
599 | //\r | |
600 | // Extract the value of BootFile Size.\r | |
601 | //\r | |
602 | BootFilePara = BootFilePara + sizeof (UINT16);\r | |
603 | Size = 0;\r | |
604 | for (Index = 0; Index < Length; Index++) {\r | |
605 | if (EFI_ERROR (PxeBcUniHexToUint8 (&Digit, *(BootFilePara + Index)))) {\r | |
606 | return EFI_NOT_FOUND;\r | |
607 | }\r | |
608 | \r | |
609 | Size = (Size + Digit) * 10;\r | |
610 | }\r | |
611 | \r | |
612 | Size = Size / 10;\r | |
613 | if (Size > PXEBC_DHCP6_MAX_BOOT_FILE_SIZE) {\r | |
614 | return EFI_NOT_FOUND;\r | |
615 | }\r | |
616 | \r | |
617 | *BootFileSize = (UINT16) Size;\r | |
618 | return EFI_SUCCESS;\r | |
619 | }\r | |
620 | \r | |
621 | \r | |
622 | /**\r | |
623 | Parse the cached DHCPv6 packet, including all the options.\r | |
624 | \r | |
625 | @param[in] Cache6 The pointer to a cached DHCPv6 packet.\r | |
626 | \r | |
627 | @retval EFI_SUCCESS Parsed the DHCPv6 packet successfully.\r | |
628 | @retval EFI_DEVICE_ERROR Failed to parse and invalid the packet.\r | |
629 | \r | |
630 | **/\r | |
631 | EFI_STATUS\r | |
632 | PxeBcParseDhcp6Packet (\r | |
633 | IN PXEBC_DHCP6_PACKET_CACHE *Cache6\r | |
634 | )\r | |
635 | {\r | |
636 | EFI_DHCP6_PACKET *Offer;\r | |
637 | EFI_DHCP6_PACKET_OPTION **Options;\r | |
638 | EFI_DHCP6_PACKET_OPTION *Option;\r | |
639 | PXEBC_OFFER_TYPE OfferType;\r | |
640 | BOOLEAN IsProxyOffer;\r | |
641 | BOOLEAN IsPxeOffer;\r | |
642 | UINT32 Offset;\r | |
643 | UINT32 Length;\r | |
644 | UINT32 EnterpriseNum;\r | |
645 | \r | |
646 | IsProxyOffer = TRUE;\r | |
647 | IsPxeOffer = FALSE;\r | |
648 | Offer = &Cache6->Packet.Offer;\r | |
649 | Options = Cache6->OptList;\r | |
650 | \r | |
651 | ZeroMem (Cache6->OptList, sizeof (Cache6->OptList));\r | |
652 | \r | |
653 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option);\r | |
654 | Offset = 0;\r | |
655 | Length = GET_DHCP6_OPTION_SIZE (Offer);\r | |
656 | \r | |
657 | //\r | |
658 | // OpLen and OpCode here are both stored in network order, since they are from original packet.\r | |
659 | //\r | |
660 | while (Offset < Length) {\r | |
661 | \r | |
142c00c3 | 662 | if (NTOHS (Option->OpCode) == DHCP6_OPT_IA_NA) {\r |
a3bcde70 | 663 | Options[PXEBC_DHCP6_IDX_IA_NA] = Option;\r |
142c00c3 | 664 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_URL) {\r |
a3bcde70 HT |
665 | //\r |
666 | // The server sends this option to inform the client about an URL to a boot file.\r | |
667 | //\r | |
668 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_URL] = Option;\r | |
142c00c3 | 669 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_PARAM) {\r |
a3bcde70 | 670 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_PARAM] = Option;\r |
142c00c3 | 671 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {\r |
a3bcde70 | 672 | Options[PXEBC_DHCP6_IDX_VENDOR_CLASS] = Option;\r |
6692d519 ZL |
673 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_DNS_SERVERS) {\r |
674 | Options[PXEBC_DHCP6_IDX_DNS_SERVER] = Option;\r | |
a3bcde70 HT |
675 | }\r |
676 | \r | |
677 | Offset += (NTOHS (Option->OpLen) + 4);\r | |
678 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option + Offset);\r | |
679 | }\r | |
680 | \r | |
681 | //\r | |
ae97201c | 682 | // The offer with assigned client address is NOT a proxy offer.\r |
a3bcde70 HT |
683 | // An ia_na option, embeded with valid ia_addr option and a status_code of success.\r |
684 | //\r | |
685 | Option = Options[PXEBC_DHCP6_IDX_IA_NA];\r | |
129b8b09 | 686 | if (Option != NULL) {\r |
a3bcde70 HT |
687 | Option = PxeBcParseDhcp6Options (\r |
688 | Option->Data + 12,\r | |
689 | NTOHS (Option->OpLen),\r | |
142c00c3 | 690 | DHCP6_OPT_STATUS_CODE\r |
a3bcde70 | 691 | );\r |
129b8b09 | 692 | if ((Option != NULL && Option->Data[0] == 0) || (Option == NULL)) {\r |
a3bcde70 HT |
693 | IsProxyOffer = FALSE;\r |
694 | }\r | |
695 | }\r | |
696 | \r | |
697 | //\r | |
698 | // The offer with "PXEClient" is a pxe offer.\r | |
699 | //\r | |
700 | Option = Options[PXEBC_DHCP6_IDX_VENDOR_CLASS];\r | |
129b8b09 | 701 | EnterpriseNum = HTONL(PXEBC_DHCP6_ENTERPRISE_NUM);\r |
702 | \r | |
a3bcde70 HT |
703 | if (Option != NULL &&\r |
704 | NTOHS(Option->OpLen) >= 13 &&\r | |
705 | CompareMem (Option->Data, &EnterpriseNum, sizeof (UINT32)) == 0 &&\r | |
129b8b09 | 706 | CompareMem (&Option->Data[6], DEFAULT_CLASS_ID_DATA, 9) == 0) {\r |
a3bcde70 HT |
707 | IsPxeOffer = TRUE;\r |
708 | }\r | |
709 | \r | |
710 | //\r | |
711 | // Determine offer type of the dhcp6 packet.\r | |
712 | //\r | |
713 | if (IsPxeOffer) {\r | |
714 | //\r | |
715 | // It's a binl offer only with PXEClient.\r | |
716 | //\r | |
717 | OfferType = IsProxyOffer ? PxeOfferTypeProxyBinl : PxeOfferTypeDhcpBinl;\r | |
718 | } else {\r | |
719 | //\r | |
720 | // It's a dhcp only offer, which is a pure dhcp6 offer packet.\r | |
721 | //\r | |
722 | OfferType = PxeOfferTypeDhcpOnly;\r | |
723 | }\r | |
724 | \r | |
725 | Cache6->OfferType = OfferType;\r | |
726 | \r | |
727 | return EFI_SUCCESS;\r | |
728 | }\r | |
729 | \r | |
730 | \r | |
731 | /**\r | |
732 | Cache the DHCPv6 ack packet, and parse it on demand.\r | |
733 | \r | |
734 | @param[in] Private The pointer to PxeBc private data.\r | |
735 | @param[in] Ack The pointer to the DHCPv6 ack packet.\r | |
736 | @param[in] Verified If TRUE, parse the ACK packet and store info into mode data.\r | |
737 | \r | |
a35dc649 FS |
738 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
739 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
740 | \r | |
a3bcde70 | 741 | **/\r |
a35dc649 | 742 | EFI_STATUS\r |
a3bcde70 HT |
743 | PxeBcCopyDhcp6Ack (\r |
744 | IN PXEBC_PRIVATE_DATA *Private,\r | |
745 | IN EFI_DHCP6_PACKET *Ack,\r | |
746 | IN BOOLEAN Verified\r | |
747 | )\r | |
748 | {\r | |
749 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
a35dc649 | 750 | EFI_STATUS Status;\r |
a3bcde70 HT |
751 | \r |
752 | Mode = Private->PxeBc.Mode;\r | |
753 | \r | |
a35dc649 FS |
754 | Status = PxeBcCacheDhcp6Packet (&Private->DhcpAck.Dhcp6.Packet.Ack, Ack);\r |
755 | if (EFI_ERROR (Status)) {\r | |
756 | return Status;\r | |
757 | }\r | |
a3bcde70 HT |
758 | \r |
759 | if (Verified) {\r | |
760 | //\r | |
761 | // Parse the ack packet and store it into mode data if needed.\r | |
762 | //\r | |
763 | PxeBcParseDhcp6Packet (&Private->DhcpAck.Dhcp6);\r | |
764 | CopyMem (&Mode->DhcpAck.Dhcpv6, &Ack->Dhcp6, Ack->Length);\r | |
765 | Mode->DhcpAckReceived = TRUE;\r | |
766 | }\r | |
a35dc649 FS |
767 | \r |
768 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
769 | }\r |
770 | \r | |
771 | \r | |
772 | /**\r | |
773 | Cache the DHCPv6 proxy offer packet according to the received order.\r | |
774 | \r | |
775 | @param[in] Private The pointer to PxeBc private data.\r | |
776 | @param[in] OfferIndex The received order of offer packets.\r | |
777 | \r | |
a35dc649 FS |
778 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
779 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
780 | \r | |
a3bcde70 | 781 | **/\r |
a35dc649 | 782 | EFI_STATUS\r |
a3bcde70 HT |
783 | PxeBcCopyDhcp6Proxy (\r |
784 | IN PXEBC_PRIVATE_DATA *Private,\r | |
785 | IN UINT32 OfferIndex\r | |
786 | )\r | |
787 | {\r | |
788 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
789 | EFI_DHCP6_PACKET *Offer;\r | |
a35dc649 | 790 | EFI_STATUS Status;\r |
a3bcde70 HT |
791 | \r |
792 | ASSERT (OfferIndex < Private->OfferNum);\r | |
793 | ASSERT (OfferIndex < PXEBC_OFFER_MAX_NUM);\r | |
794 | \r | |
795 | Mode = Private->PxeBc.Mode;\r | |
796 | Offer = &Private->OfferBuffer[OfferIndex].Dhcp6.Packet.Offer;\r | |
797 | \r | |
798 | //\r | |
799 | // Cache the proxy offer packet and parse it.\r | |
800 | //\r | |
a35dc649 FS |
801 | Status = PxeBcCacheDhcp6Packet (&Private->ProxyOffer.Dhcp6.Packet.Offer, Offer);\r |
802 | if (EFI_ERROR(Status)) {\r | |
803 | return Status;\r | |
804 | }\r | |
a3bcde70 HT |
805 | PxeBcParseDhcp6Packet (&Private->ProxyOffer.Dhcp6);\r |
806 | \r | |
807 | //\r | |
808 | // Store this packet into mode data.\r | |
809 | //\r | |
810 | CopyMem (&Mode->ProxyOffer.Dhcpv6, &Offer->Dhcp6, Offer->Length);\r | |
811 | Mode->ProxyOfferReceived = TRUE;\r | |
a35dc649 FS |
812 | \r |
813 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
814 | }\r |
815 | \r | |
129b8b09 | 816 | /**\r |
817 | Seek the address of the first byte of the option header.\r | |
818 | \r | |
819 | @param[in] Buf The pointer to the buffer.\r | |
820 | @param[in] SeekLen The length to seek.\r | |
821 | @param[in] OptType The option type.\r | |
822 | \r | |
823 | @retval NULL If it failed to seek the option.\r | |
824 | @retval others The position to the option.\r | |
825 | \r | |
826 | **/\r | |
827 | UINT8 *\r | |
828 | PxeBcDhcp6SeekOption (\r | |
829 | IN UINT8 *Buf,\r | |
830 | IN UINT32 SeekLen,\r | |
831 | IN UINT16 OptType\r | |
832 | )\r | |
833 | {\r | |
834 | UINT8 *Cursor;\r | |
835 | UINT8 *Option;\r | |
836 | UINT16 DataLen;\r | |
837 | UINT16 OpCode;\r | |
838 | \r | |
839 | Option = NULL;\r | |
840 | Cursor = Buf;\r | |
841 | \r | |
842 | while (Cursor < Buf + SeekLen) {\r | |
843 | OpCode = ReadUnaligned16 ((UINT16 *) Cursor);\r | |
844 | if (OpCode == HTONS (OptType)) {\r | |
845 | Option = Cursor;\r | |
846 | break;\r | |
847 | }\r | |
848 | DataLen = NTOHS (ReadUnaligned16 ((UINT16 *) (Cursor + 2)));\r | |
849 | Cursor += (DataLen + 4);\r | |
850 | }\r | |
851 | \r | |
852 | return Option;\r | |
853 | }\r | |
854 | \r | |
855 | \r | |
856 | /**\r | |
857 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
858 | \r | |
859 | @param[in] Private The pointer to PxeBc private data.\r | |
860 | @param[in] Index PxeBc option boot item type.\r | |
861 | \r | |
862 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
863 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
864 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
865 | @retval Others Failed to discover the boot file.\r | |
866 | \r | |
867 | **/\r | |
868 | EFI_STATUS\r | |
869 | PxeBcRequestBootService (\r | |
870 | IN PXEBC_PRIVATE_DATA *Private,\r | |
871 | IN UINT32 Index\r | |
872 | )\r | |
873 | {\r | |
874 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
875 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
129b8b09 | 876 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r |
877 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
878 | UINTN DiscoverLen;\r | |
879 | EFI_DHCP6_PACKET *Request;\r | |
880 | UINTN RequestLen;\r | |
881 | EFI_DHCP6_PACKET *Reply;\r | |
882 | UINT8 *RequestOpt;\r | |
883 | UINT8 *DiscoverOpt;\r | |
884 | UINTN ReadSize;\r | |
885 | UINT16 OpFlags;\r | |
886 | UINT16 OpCode;\r | |
887 | UINT16 OpLen;\r | |
888 | EFI_STATUS Status;\r | |
be37315a | 889 | EFI_DHCP6_PACKET *IndexOffer;\r |
129b8b09 | 890 | UINT8 *Option;\r |
891 | \r | |
892 | PxeBc = &Private->PxeBc;\r | |
129b8b09 | 893 | Request = Private->Dhcp6Request;\r |
be37315a | 894 | IndexOffer = &Private->OfferBuffer[Index].Dhcp6.Packet.Offer;\r |
129b8b09 | 895 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r |
896 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
897 | OpFlags = 0;\r | |
898 | \r | |
899 | if (Request == NULL) {\r | |
900 | return EFI_DEVICE_ERROR;\r | |
901 | }\r | |
902 | \r | |
903 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
904 | if (Discover == NULL) {\r | |
905 | return EFI_OUT_OF_RESOURCES;\r | |
906 | }\r | |
907 | \r | |
908 | //\r | |
909 | // Build the request packet by the cached request packet before.\r | |
910 | //\r | |
be37315a | 911 | Discover->TransactionId = IndexOffer->Dhcp6.Header.TransactionId;\r |
129b8b09 | 912 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r |
913 | RequestOpt = Request->Dhcp6.Option;\r | |
914 | DiscoverOpt = Discover->DhcpOptions;\r | |
915 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
916 | RequestLen = DiscoverLen;\r | |
917 | \r | |
918 | //\r | |
919 | // Find Server ID Option from ProxyOffer.\r | |
920 | //\r | |
f75a7f56 | 921 | if (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl) {\r |
be37315a JW |
922 | Option = PxeBcDhcp6SeekOption (\r |
923 | IndexOffer->Dhcp6.Option,\r | |
924 | IndexOffer->Length - 4,\r | |
925 | DHCP6_OPT_SERVER_ID\r | |
926 | );\r | |
927 | if (Option == NULL) {\r | |
928 | return EFI_NOT_FOUND;\r | |
929 | }\r | |
f75a7f56 | 930 | \r |
be37315a JW |
931 | //\r |
932 | // Add Server ID Option.\r | |
933 | //\r | |
934 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) Option)->OpLen);\r | |
935 | CopyMem (DiscoverOpt, Option, OpLen + 4);\r | |
936 | DiscoverOpt += (OpLen + 4);\r | |
937 | DiscoverLen += (OpLen + 4);\r | |
938 | }\r | |
129b8b09 | 939 | \r |
940 | while (RequestLen < Request->Length) {\r | |
941 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
942 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
943 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
944 | OpCode != EFI_DHCP6_IA_TYPE_TA &&\r | |
142c00c3 | 945 | OpCode != DHCP6_OPT_SERVER_ID\r |
129b8b09 | 946 | ) {\r |
947 | //\r | |
948 | // Copy all the options except IA option and Server ID\r | |
949 | //\r | |
950 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
951 | DiscoverOpt += (OpLen + 4);\r | |
952 | DiscoverLen += (OpLen + 4);\r | |
953 | }\r | |
954 | RequestOpt += (OpLen + 4);\r | |
955 | RequestLen += (OpLen + 4);\r | |
956 | }\r | |
957 | \r | |
958 | //\r | |
f75a7f56 | 959 | // Update Elapsed option in the package\r |
129b8b09 | 960 | //\r |
961 | Option = PxeBcDhcp6SeekOption (\r | |
962 | Discover->DhcpOptions,\r | |
963 | (UINT32)(RequestLen - 4),\r | |
142c00c3 | 964 | DHCP6_OPT_ELAPSED_TIME\r |
129b8b09 | 965 | );\r |
966 | if (Option != NULL) {\r | |
967 | CalcElapsedTime (Private);\r | |
968 | WriteUnaligned16 ((UINT16*)(Option + 4), HTONS((UINT16) Private->ElapsedTime));\r | |
f75a7f56 | 969 | }\r |
129b8b09 | 970 | \r |
971 | Status = PxeBc->UdpWrite (\r | |
972 | PxeBc,\r | |
973 | OpFlags,\r | |
974 | &Private->ServerIp,\r | |
975 | &DestPort,\r | |
976 | NULL,\r | |
977 | &Private->StationIp,\r | |
978 | &SrcPort,\r | |
979 | NULL,\r | |
980 | NULL,\r | |
981 | &DiscoverLen,\r | |
982 | (VOID *) Discover\r | |
983 | );\r | |
984 | \r | |
985 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 986 | goto ON_ERROR;\r |
129b8b09 | 987 | }\r |
988 | \r | |
989 | //\r | |
990 | // Cache the right PXE reply packet here, set valid flag later.\r | |
991 | // Especially for PXE discover packet, store it into mode data here.\r | |
992 | //\r | |
993 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
994 | ReadSize = (UINTN) Reply->Size;\r | |
995 | \r | |
996 | //\r | |
997 | // Start Udp6Read instance\r | |
998 | //\r | |
999 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
1000 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 1001 | goto ON_ERROR;\r |
129b8b09 | 1002 | }\r |
f75a7f56 | 1003 | \r |
129b8b09 | 1004 | Status = PxeBc->UdpRead (\r |
1005 | PxeBc,\r | |
903d1fa9 FS |
1006 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
1007 | NULL,\r | |
129b8b09 | 1008 | &SrcPort,\r |
1009 | &Private->ServerIp,\r | |
1010 | &DestPort,\r | |
1011 | NULL,\r | |
1012 | NULL,\r | |
1013 | &ReadSize,\r | |
1014 | (VOID *) &Reply->Dhcp6\r | |
1015 | );\r | |
1016 | //\r | |
1017 | // Stop Udp6Read instance\r | |
1018 | //\r | |
1019 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
1020 | \r | |
1021 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 1022 | goto ON_ERROR;\r |
129b8b09 | 1023 | }\r |
1024 | \r | |
1025 | //\r | |
1026 | // Update length\r | |
1027 | //\r | |
1028 | Reply->Length = (UINT32) ReadSize;\r | |
1029 | \r | |
1030 | return EFI_SUCCESS;\r | |
f75a7f56 | 1031 | \r |
2fad330f FS |
1032 | ON_ERROR:\r |
1033 | if (Discover != NULL) {\r | |
1034 | FreePool (Discover);\r | |
1035 | }\r | |
1036 | \r | |
1037 | return Status;\r | |
129b8b09 | 1038 | }\r |
1039 | \r | |
a3bcde70 HT |
1040 | \r |
1041 | /**\r | |
1042 | Retry to request bootfile name by the BINL offer.\r | |
1043 | \r | |
1044 | @param[in] Private The pointer to PxeBc private data.\r | |
1045 | @param[in] Index The received order of offer packets.\r | |
1046 | \r | |
1047 | @retval EFI_SUCCESS Successfully retried a request for the bootfile name.\r | |
1048 | @retval EFI_DEVICE_ERROR Failed to retry the bootfile name.\r | |
1049 | \r | |
1050 | **/\r | |
1051 | EFI_STATUS\r | |
1052 | PxeBcRetryDhcp6Binl (\r | |
1053 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1054 | IN UINT32 Index\r | |
1055 | )\r | |
1056 | {\r | |
1057 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1058 | PXEBC_DHCP6_PACKET_CACHE *Offer;\r | |
1059 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
a3bcde70 HT |
1060 | EFI_STATUS Status;\r |
1061 | \r | |
1062 | ASSERT (Index < PXEBC_OFFER_MAX_NUM);\r | |
1063 | ASSERT (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeDhcpBinl ||\r | |
1064 | Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl);\r | |
1065 | \r | |
1066 | Mode = Private->PxeBc.Mode;\r | |
1067 | Private->IsDoDiscover = FALSE;\r | |
1068 | Offer = &Private->OfferBuffer[Index].Dhcp6;\r | |
be37315a | 1069 | if (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r |
d40002ba | 1070 | //\r |
1071 | // There is no BootFileUrl option in dhcp6 offer, so use servers multi-cast address instead.\r | |
1072 | //\r | |
1073 | CopyMem (\r | |
1074 | &Private->ServerIp.v6,\r | |
1075 | &mAllDhcpRelayAndServersAddress,\r | |
1076 | sizeof (EFI_IPv6_ADDRESS)\r | |
1077 | );\r | |
1078 | } else {\r | |
1079 | ASSERT (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1080 | //\r | |
1081 | // Parse out the next server address from the last offer, and store it\r | |
1082 | //\r | |
1083 | Status = PxeBcExtractBootFileUrl (\r | |
6692d519 | 1084 | Private,\r |
d40002ba | 1085 | &Private->BootFileName,\r |
1086 | &Private->ServerIp.v6,\r | |
1087 | (CHAR8 *) (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->Data),\r | |
1088 | NTOHS (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->OpLen)\r | |
1089 | );\r | |
1090 | if (EFI_ERROR (Status)) {\r | |
1091 | return Status;\r | |
1092 | }\r | |
a3bcde70 HT |
1093 | }\r |
1094 | \r | |
1095 | //\r | |
1096 | // Retry Dhcp6Binl again for the bootfile, and the reply cached into Private->ProxyOffer.\r | |
1097 | //\r | |
129b8b09 | 1098 | Status = PxeBcRequestBootService (Private, Index);\r |
1099 | \r | |
a3bcde70 HT |
1100 | if (EFI_ERROR (Status)) {\r |
1101 | return Status;\r | |
1102 | }\r | |
1103 | \r | |
1104 | Cache6 = &Private->ProxyOffer.Dhcp6;\r | |
1105 | Status = PxeBcParseDhcp6Packet (Cache6);\r | |
1106 | if (EFI_ERROR (Status)) {\r | |
1107 | return Status;\r | |
1108 | }\r | |
1109 | \r | |
1110 | if (Cache6->OfferType != PxeOfferTypeProxyPxe10 &&\r | |
1111 | Cache6->OfferType != PxeOfferTypeProxyWfm11a &&\r | |
1112 | Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
1113 | //\r | |
1114 | // This BINL ack doesn't have discovery option set or multicast option set\r | |
1115 | // or bootfile name specified.\r | |
1116 | //\r | |
1117 | return EFI_DEVICE_ERROR;\r | |
1118 | }\r | |
1119 | \r | |
1120 | Mode->ProxyOfferReceived = TRUE;\r | |
1121 | CopyMem (\r | |
1122 | &Mode->ProxyOffer.Dhcpv6,\r | |
1123 | &Cache6->Packet.Offer.Dhcp6,\r | |
1124 | Cache6->Packet.Offer.Length\r | |
1125 | );\r | |
1126 | \r | |
1127 | return EFI_SUCCESS;\r | |
1128 | }\r | |
1129 | \r | |
1130 | \r | |
1131 | /**\r | |
1132 | Cache all the received DHCPv6 offers, and set OfferIndex and OfferCount.\r | |
1133 | \r | |
1134 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1135 | @param[in] RcvdOffer The pointer to the received offer packet.\r | |
1136 | \r | |
a35dc649 FS |
1137 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
1138 | @retval Others Operation failed.\r | |
a3bcde70 | 1139 | **/\r |
a35dc649 | 1140 | EFI_STATUS\r |
a3bcde70 HT |
1141 | PxeBcCacheDhcp6Offer (\r |
1142 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1143 | IN EFI_DHCP6_PACKET *RcvdOffer\r | |
1144 | )\r | |
1145 | {\r | |
1146 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1147 | EFI_DHCP6_PACKET *Offer;\r | |
1148 | PXEBC_OFFER_TYPE OfferType;\r | |
a35dc649 | 1149 | EFI_STATUS Status;\r |
a3bcde70 HT |
1150 | \r |
1151 | Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;\r | |
1152 | Offer = &Cache6->Packet.Offer;\r | |
1153 | \r | |
1154 | //\r | |
1155 | // Cache the content of DHCPv6 packet firstly.\r | |
1156 | //\r | |
a35dc649 FS |
1157 | Status = PxeBcCacheDhcp6Packet (Offer, RcvdOffer);\r |
1158 | if (EFI_ERROR (Status)) {\r | |
1159 | return Status;\r | |
1160 | }\r | |
a3bcde70 HT |
1161 | \r |
1162 | //\r | |
1163 | // Validate the DHCPv6 packet, and parse the options and offer type.\r | |
1164 | //\r | |
1165 | if (EFI_ERROR (PxeBcParseDhcp6Packet (Cache6))) {\r | |
a35dc649 | 1166 | return EFI_ABORTED;\r |
a3bcde70 HT |
1167 | }\r |
1168 | \r | |
1169 | //\r | |
1170 | // Determine whether cache the current offer by type, and record OfferIndex and OfferCount.\r | |
1171 | //\r | |
1172 | OfferType = Cache6->OfferType;\r | |
1173 | ASSERT (OfferType < PxeOfferTypeMax);\r | |
1174 | ASSERT (Private->OfferCount[OfferType] < PXEBC_OFFER_MAX_NUM);\r | |
1175 | \r | |
1176 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1177 | //\r | |
1178 | // It's a proxy offer without yiaddr, including PXE10, WFM11a or BINL offer.\r | |
1179 | //\r | |
1180 | Private->IsProxyRecved = TRUE;\r | |
1181 | \r | |
1182 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1183 | //\r | |
1184 | // Cache all proxy BINL offers.\r | |
1185 | //\r | |
1186 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1187 | Private->OfferCount[OfferType]++;\r | |
f75a7f56 | 1188 | } else if ((OfferType == PxeOfferTypeProxyPxe10 || OfferType == PxeOfferTypeProxyWfm11a) &&\r |
8cdd559b | 1189 | Private->OfferCount[OfferType] < 1) {\r |
a3bcde70 HT |
1190 | //\r |
1191 | // Only cache the first PXE10/WFM11a offer, and discard the others.\r | |
1192 | //\r | |
1193 | Private->OfferIndex[OfferType][0] = Private->OfferNum;\r | |
1194 | Private->OfferCount[OfferType] = 1;\r | |
1195 | } else {\r | |
a35dc649 | 1196 | return EFI_ABORTED;\r |
a3bcde70 HT |
1197 | }\r |
1198 | } else {\r | |
1199 | //\r | |
1200 | // It's a DHCPv6 offer with yiaddr, and cache them all.\r | |
1201 | //\r | |
1202 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1203 | Private->OfferCount[OfferType]++;\r | |
1204 | }\r | |
1205 | \r | |
1206 | Private->OfferNum++;\r | |
a35dc649 FS |
1207 | \r |
1208 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
1209 | }\r |
1210 | \r | |
1211 | \r | |
1212 | /**\r | |
1213 | Select an DHCPv6 offer, and record SelectIndex and SelectProxyType.\r | |
1214 | \r | |
1215 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1216 | \r | |
1217 | **/\r | |
1218 | VOID\r | |
1219 | PxeBcSelectDhcp6Offer (\r | |
1220 | IN PXEBC_PRIVATE_DATA *Private\r | |
1221 | )\r | |
1222 | {\r | |
1223 | UINT32 Index;\r | |
1224 | UINT32 OfferIndex;\r | |
1225 | PXEBC_OFFER_TYPE OfferType;\r | |
1226 | \r | |
1227 | Private->SelectIndex = 0;\r | |
1228 | \r | |
1229 | if (Private->IsOfferSorted) {\r | |
1230 | //\r | |
1231 | // Select offer by default policy.\r | |
1232 | //\r | |
1233 | if (Private->OfferCount[PxeOfferTypeDhcpPxe10] > 0) {\r | |
1234 | //\r | |
1235 | // 1. DhcpPxe10 offer\r | |
1236 | //\r | |
1237 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpPxe10][0] + 1;\r | |
1238 | \r | |
1239 | } else if (Private->OfferCount[PxeOfferTypeDhcpWfm11a] > 0) {\r | |
1240 | //\r | |
1241 | // 2. DhcpWfm11a offer\r | |
1242 | //\r | |
1243 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpWfm11a][0] + 1;\r | |
1244 | \r | |
1245 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1246 | Private->OfferCount[PxeOfferTypeProxyPxe10] > 0) {\r | |
1247 | //\r | |
1248 | // 3. DhcpOnly offer and ProxyPxe10 offer.\r | |
1249 | //\r | |
1250 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1251 | Private->SelectProxyType = PxeOfferTypeProxyPxe10;\r | |
1252 | \r | |
1253 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1254 | Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0) {\r | |
1255 | //\r | |
1256 | // 4. DhcpOnly offer and ProxyWfm11a offer.\r | |
1257 | //\r | |
1258 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1259 | Private->SelectProxyType = PxeOfferTypeProxyWfm11a;\r | |
1260 | \r | |
1261 | } else if (Private->OfferCount[PxeOfferTypeDhcpBinl] > 0) {\r | |
1262 | //\r | |
1263 | // 5. DhcpBinl offer.\r | |
1264 | //\r | |
1265 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpBinl][0] + 1;\r | |
1266 | \r | |
1267 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1268 | Private->OfferCount[PxeOfferTypeProxyBinl] > 0) {\r | |
1269 | //\r | |
1270 | // 6. DhcpOnly offer and ProxyBinl offer.\r | |
1271 | //\r | |
1272 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1273 | Private->SelectProxyType = PxeOfferTypeProxyBinl;\r | |
1274 | \r | |
1275 | } else {\r | |
1276 | //\r | |
1277 | // 7. DhcpOnly offer with bootfilename.\r | |
1278 | //\r | |
1279 | for (Index = 0; Index < Private->OfferCount[PxeOfferTypeDhcpOnly]; Index++) {\r | |
1280 | OfferIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][Index];\r | |
1281 | if (Private->OfferBuffer[OfferIndex].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL) {\r | |
1282 | Private->SelectIndex = OfferIndex + 1;\r | |
1283 | break;\r | |
1284 | }\r | |
1285 | }\r | |
1286 | }\r | |
1287 | } else {\r | |
1288 | //\r | |
1289 | // Select offer by received order.\r | |
1290 | //\r | |
1291 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1292 | \r | |
1293 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1294 | \r | |
1295 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1296 | //\r | |
1297 | // Skip proxy offers\r | |
1298 | //\r | |
1299 | continue;\r | |
1300 | }\r | |
1301 | \r | |
1302 | if (!Private->IsProxyRecved &&\r | |
1303 | OfferType == PxeOfferTypeDhcpOnly &&\r | |
1304 | Private->OfferBuffer[Index].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
1305 | //\r | |
1306 | // Skip if DhcpOnly offer without any other proxy offers or bootfilename.\r | |
1307 | //\r | |
1308 | continue;\r | |
1309 | }\r | |
1310 | \r | |
1311 | Private->SelectIndex = Index + 1;\r | |
1312 | break;\r | |
1313 | }\r | |
1314 | }\r | |
1315 | }\r | |
1316 | \r | |
1317 | \r | |
1318 | /**\r | |
1319 | Handle the DHCPv6 offer packet.\r | |
1320 | \r | |
1321 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1322 | \r | |
92ec8772 ZL |
1323 | @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.\r |
1324 | @retval EFI_NO_RESPONSE No response to the following request packet.\r | |
1325 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
a35dc649 | 1326 | @retval EFI_BUFFER_TOO_SMALL Can't cache the offer pacet.\r |
a3bcde70 HT |
1327 | \r |
1328 | **/\r | |
1329 | EFI_STATUS\r | |
1330 | PxeBcHandleDhcp6Offer (\r | |
1331 | IN PXEBC_PRIVATE_DATA *Private\r | |
1332 | )\r | |
1333 | {\r | |
1334 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1335 | EFI_STATUS Status;\r | |
1336 | PXEBC_OFFER_TYPE OfferType;\r | |
1337 | UINT32 ProxyIndex;\r | |
1338 | UINT32 SelectIndex;\r | |
1339 | UINT32 Index;\r | |
1340 | \r | |
1341 | ASSERT (Private->SelectIndex > 0);\r | |
1342 | SelectIndex = (UINT32) (Private->SelectIndex - 1);\r | |
1343 | ASSERT (SelectIndex < PXEBC_OFFER_MAX_NUM);\r | |
1344 | Cache6 = &Private->OfferBuffer[SelectIndex].Dhcp6;\r | |
1345 | Status = EFI_SUCCESS;\r | |
1346 | \r | |
6692d519 ZL |
1347 | //\r |
1348 | // First try to cache DNS server address if DHCP6 offer provides.\r | |
1349 | //\r | |
1350 | if (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] != NULL) {\r | |
1351 | Private->DnsServer = AllocateZeroPool (NTOHS (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen));\r | |
92ec8772 ZL |
1352 | if (Private->DnsServer == NULL) {\r |
1353 | return EFI_OUT_OF_RESOURCES;\r | |
1354 | }\r | |
6692d519 ZL |
1355 | CopyMem (Private->DnsServer, Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, sizeof (EFI_IPv6_ADDRESS));\r |
1356 | }\r | |
1357 | \r | |
a3bcde70 HT |
1358 | if (Cache6->OfferType == PxeOfferTypeDhcpBinl) {\r |
1359 | //\r | |
1360 | // DhcpBinl offer is selected, so need try to request bootfilename by this offer.\r | |
1361 | //\r | |
1362 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, SelectIndex))) {\r | |
1363 | Status = EFI_NO_RESPONSE;\r | |
1364 | }\r | |
1365 | } else if (Cache6->OfferType == PxeOfferTypeDhcpOnly) {\r | |
1366 | \r | |
1367 | if (Private->IsProxyRecved) {\r | |
1368 | //\r | |
1369 | // DhcpOnly offer is selected, so need try to request bootfilename.\r | |
1370 | //\r | |
1371 | ProxyIndex = 0;\r | |
1372 | if (Private->IsOfferSorted) {\r | |
1373 | //\r | |
1374 | // The proxy offer should be determined if select by default policy.\r | |
1375 | // IsOfferSorted means all offers are labeled by OfferIndex.\r | |
1376 | //\r | |
1377 | ASSERT (Private->OfferCount[Private->SelectProxyType] > 0);\r | |
1378 | \r | |
1379 | if (Private->SelectProxyType == PxeOfferTypeProxyBinl) {\r | |
1380 | //\r | |
1381 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1382 | //\r | |
1383 | for (Index = 0; Index < Private->OfferCount[Private->SelectProxyType]; Index++) {\r | |
1384 | \r | |
1385 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][Index];\r | |
1386 | if (!EFI_ERROR (PxeBcRetryDhcp6Binl (Private, ProxyIndex))) {\r | |
1387 | break;\r | |
1388 | }\r | |
1389 | }\r | |
1390 | if (Index == Private->OfferCount[Private->SelectProxyType]) {\r | |
1391 | Status = EFI_NO_RESPONSE;\r | |
1392 | }\r | |
1393 | } else {\r | |
1394 | //\r | |
1395 | // For other proxy offers (pxe10 or wfm11a), only one is buffered.\r | |
1396 | //\r | |
1397 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][0];\r | |
1398 | }\r | |
1399 | } else {\r | |
1400 | //\r | |
1401 | // The proxy offer should not be determined if select by received order.\r | |
1402 | //\r | |
1403 | Status = EFI_NO_RESPONSE;\r | |
1404 | \r | |
1405 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1406 | \r | |
1407 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1408 | \r | |
1409 | if (!IS_PROXY_OFFER (OfferType)) {\r | |
1410 | //\r | |
1411 | // Skip non proxy dhcp offers.\r | |
1412 | //\r | |
1413 | continue;\r | |
1414 | }\r | |
1415 | \r | |
1416 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1417 | //\r | |
1418 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1419 | //\r | |
1420 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, Index))) {\r | |
1421 | continue;\r | |
1422 | }\r | |
1423 | }\r | |
1424 | \r | |
1425 | Private->SelectProxyType = OfferType;\r | |
1426 | ProxyIndex = Index;\r | |
1427 | Status = EFI_SUCCESS;\r | |
1428 | break;\r | |
1429 | }\r | |
1430 | }\r | |
1431 | \r | |
1432 | if (!EFI_ERROR (Status) && Private->SelectProxyType != PxeOfferTypeProxyBinl) {\r | |
1433 | //\r | |
1434 | // Success to try to request by a ProxyPxe10 or ProxyWfm11a offer, copy and parse it.\r | |
1435 | //\r | |
a35dc649 | 1436 | Status = PxeBcCopyDhcp6Proxy (Private, ProxyIndex);\r |
a3bcde70 HT |
1437 | }\r |
1438 | } else {\r | |
1439 | //\r | |
1440 | // Othewise, the bootfilename must be included in DhcpOnly offer.\r | |
1441 | //\r | |
1442 | ASSERT (Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1443 | }\r | |
1444 | }\r | |
1445 | \r | |
1446 | if (!EFI_ERROR (Status)) {\r | |
1447 | //\r | |
1448 | // All PXE boot information is ready by now.\r | |
1449 | //\r | |
a35dc649 | 1450 | Status = PxeBcCopyDhcp6Ack (Private, &Private->DhcpAck.Dhcp6.Packet.Ack, TRUE);\r |
a3bcde70 HT |
1451 | Private->PxeBc.Mode->DhcpDiscoverValid = TRUE;\r |
1452 | }\r | |
1453 | \r | |
1454 | return Status;\r | |
1455 | }\r | |
1456 | \r | |
1457 | \r | |
1458 | /**\r | |
1459 | Unregister the address by Ip6Config protocol.\r | |
1460 | \r | |
1461 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1462 | \r | |
1463 | **/\r | |
1464 | VOID\r | |
1465 | PxeBcUnregisterIp6Address (\r | |
1466 | IN PXEBC_PRIVATE_DATA *Private\r | |
1467 | )\r | |
1468 | {\r | |
1469 | if (Private->Ip6Policy != PXEBC_IP6_POLICY_MAX) {\r | |
1470 | //\r | |
1471 | // PXE driver change the policy of IP6 driver, it's a chance to recover.\r | |
1472 | // Keep the point and there is no enough requirements to do recovery.\r | |
1473 | //\r | |
1474 | }\r | |
1475 | }\r | |
1476 | \r | |
ae97201c FS |
1477 | /**\r |
1478 | Check whether IP driver could route the message which will be sent to ServerIp address.\r | |
f75a7f56 | 1479 | \r |
ae97201c FS |
1480 | This function will check the IP6 route table every 1 seconds until specified timeout is expired, if a valid\r |
1481 | route is found in IP6 route table, the address will be filed in GatewayAddr and return.\r | |
1482 | \r | |
1483 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1484 | @param[in] TimeOutInSecond Timeout value in seconds.\r | |
1485 | @param[out] GatewayAddr Pointer to store the gateway IP address.\r | |
1486 | \r | |
1487 | @retval EFI_SUCCESS Found a valid gateway address successfully.\r | |
1488 | @retval EFI_TIMEOUT The operation is time out.\r | |
1489 | @retval Other Unexpect error happened.\r | |
f75a7f56 | 1490 | \r |
ae97201c FS |
1491 | **/\r |
1492 | EFI_STATUS\r | |
1493 | PxeBcCheckRouteTable (\r | |
1494 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1495 | IN UINTN TimeOutInSecond,\r | |
1496 | OUT EFI_IPv6_ADDRESS *GatewayAddr\r | |
1497 | )\r | |
1498 | {\r | |
1499 | EFI_STATUS Status;\r | |
1500 | EFI_IP6_PROTOCOL *Ip6;\r | |
1501 | EFI_IP6_MODE_DATA Ip6ModeData;\r | |
1502 | UINTN Index;\r | |
1503 | EFI_EVENT TimeOutEvt;\r | |
1504 | UINTN RetryCount;\r | |
1505 | BOOLEAN GatewayIsFound;\r | |
1506 | \r | |
1507 | ASSERT (GatewayAddr != NULL);\r | |
1508 | ASSERT (Private != NULL);\r | |
1509 | \r | |
1510 | Ip6 = Private->Ip6;\r | |
1511 | GatewayIsFound = FALSE;\r | |
1512 | RetryCount = 0;\r | |
1513 | TimeOutEvt = NULL;\r | |
1514 | ZeroMem (GatewayAddr, sizeof (EFI_IPv6_ADDRESS));\r | |
1515 | \r | |
1516 | while (TRUE) {\r | |
1517 | Status = Ip6->GetModeData (Ip6, &Ip6ModeData, NULL, NULL);\r | |
1518 | if (EFI_ERROR (Status)) {\r | |
1519 | goto ON_EXIT;\r | |
1520 | }\r | |
1521 | \r | |
1522 | //\r | |
07f986f1 | 1523 | // Find out the gateway address which can route the message which send to ServerIp.\r |
ae97201c FS |
1524 | //\r |
1525 | for (Index = 0; Index < Ip6ModeData.RouteCount; Index++) {\r | |
1526 | if (NetIp6IsNetEqual (&Private->ServerIp.v6, &Ip6ModeData.RouteTable[Index].Destination, Ip6ModeData.RouteTable[Index].PrefixLength)) {\r | |
1527 | IP6_COPY_ADDRESS (GatewayAddr, &Ip6ModeData.RouteTable[Index].Gateway);\r | |
1528 | GatewayIsFound = TRUE;\r | |
1529 | break;\r | |
1530 | }\r | |
1531 | }\r | |
1532 | \r | |
1533 | if (Ip6ModeData.AddressList != NULL) {\r | |
1534 | FreePool (Ip6ModeData.AddressList);\r | |
1535 | }\r | |
1536 | if (Ip6ModeData.GroupTable != NULL) {\r | |
1537 | FreePool (Ip6ModeData.GroupTable);\r | |
1538 | }\r | |
1539 | if (Ip6ModeData.RouteTable != NULL) {\r | |
1540 | FreePool (Ip6ModeData.RouteTable);\r | |
1541 | }\r | |
1542 | if (Ip6ModeData.NeighborCache != NULL) {\r | |
1543 | FreePool (Ip6ModeData.NeighborCache);\r | |
1544 | }\r | |
1545 | if (Ip6ModeData.PrefixTable != NULL) {\r | |
1546 | FreePool (Ip6ModeData.PrefixTable);\r | |
1547 | }\r | |
1548 | if (Ip6ModeData.IcmpTypeList != NULL) {\r | |
1549 | FreePool (Ip6ModeData.IcmpTypeList);\r | |
1550 | }\r | |
f75a7f56 | 1551 | \r |
ae97201c FS |
1552 | if (GatewayIsFound || RetryCount == TimeOutInSecond) {\r |
1553 | break;\r | |
1554 | }\r | |
f75a7f56 | 1555 | \r |
ae97201c | 1556 | RetryCount++;\r |
f75a7f56 | 1557 | \r |
ae97201c FS |
1558 | //\r |
1559 | // Delay 1 second then recheck it again.\r | |
1560 | //\r | |
1561 | if (TimeOutEvt == NULL) {\r | |
1562 | Status = gBS->CreateEvent (\r | |
1563 | EVT_TIMER,\r | |
1564 | TPL_CALLBACK,\r | |
1565 | NULL,\r | |
1566 | NULL,\r | |
1567 | &TimeOutEvt\r | |
1568 | );\r | |
1569 | if (EFI_ERROR (Status)) {\r | |
1570 | goto ON_EXIT;\r | |
1571 | }\r | |
1572 | }\r | |
1573 | \r | |
1574 | Status = gBS->SetTimer (TimeOutEvt, TimerRelative, TICKS_PER_SECOND);\r | |
1575 | if (EFI_ERROR (Status)) {\r | |
1576 | goto ON_EXIT;\r | |
1577 | }\r | |
1578 | while (EFI_ERROR (gBS->CheckEvent (TimeOutEvt))) {\r | |
1579 | Ip6->Poll (Ip6);\r | |
1580 | }\r | |
1581 | }\r | |
f75a7f56 | 1582 | \r |
ae97201c FS |
1583 | ON_EXIT:\r |
1584 | if (TimeOutEvt != NULL) {\r | |
1585 | gBS->CloseEvent (TimeOutEvt);\r | |
1586 | }\r | |
f75a7f56 | 1587 | \r |
ae97201c FS |
1588 | if (GatewayIsFound) {\r |
1589 | Status = EFI_SUCCESS;\r | |
1590 | } else if (RetryCount == TimeOutInSecond) {\r | |
1591 | Status = EFI_TIMEOUT;\r | |
1592 | }\r | |
1593 | \r | |
f75a7f56 | 1594 | return Status;\r |
ae97201c | 1595 | }\r |
a3bcde70 HT |
1596 | \r |
1597 | /**\r | |
ae97201c | 1598 | Register the ready station address and gateway by Ip6Config protocol.\r |
a3bcde70 HT |
1599 | \r |
1600 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1601 | @param[in] Address The pointer to the ready address.\r | |
1602 | \r | |
1603 | @retval EFI_SUCCESS Registered the address succesfully.\r | |
1604 | @retval Others Failed to register the address.\r | |
1605 | \r | |
1606 | **/\r | |
1607 | EFI_STATUS\r | |
1608 | PxeBcRegisterIp6Address (\r | |
1609 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1610 | IN EFI_IPv6_ADDRESS *Address\r | |
1611 | )\r | |
1612 | {\r | |
1613 | EFI_IP6_PROTOCOL *Ip6;\r | |
1614 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1615 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1616 | EFI_IP6_CONFIG_MANUAL_ADDRESS CfgAddr;\r | |
ae97201c | 1617 | EFI_IPv6_ADDRESS GatewayAddr;\r |
a3bcde70 | 1618 | UINTN DataSize;\r |
a3bcde70 HT |
1619 | EFI_EVENT MappedEvt;\r |
1620 | EFI_STATUS Status;\r | |
07f986f1 | 1621 | BOOLEAN NoGateway;\r |
bf9f7cea FS |
1622 | EFI_IPv6_ADDRESS *Ip6Addr;\r |
1623 | UINTN Index;\r | |
a3bcde70 HT |
1624 | \r |
1625 | Status = EFI_SUCCESS;\r | |
a3bcde70 | 1626 | MappedEvt = NULL;\r |
bf9f7cea | 1627 | Ip6Addr = NULL;\r |
a3bcde70 HT |
1628 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r |
1629 | Ip6Cfg = Private->Ip6Cfg;\r | |
1630 | Ip6 = Private->Ip6;\r | |
07f986f1 | 1631 | NoGateway = FALSE;\r |
a3bcde70 HT |
1632 | \r |
1633 | ZeroMem (&CfgAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));\r | |
1634 | CopyMem (&CfgAddr.Address, Address, sizeof (EFI_IPv6_ADDRESS));\r | |
1635 | \r | |
ae97201c FS |
1636 | Status = Ip6->Configure (Ip6, &Private->Ip6CfgData);\r |
1637 | if (EFI_ERROR (Status)) {\r | |
1638 | goto ON_EXIT;\r | |
1639 | }\r | |
1640 | \r | |
a3bcde70 | 1641 | //\r |
ae97201c | 1642 | // Retrieve the gateway address from IP6 route table.\r |
a3bcde70 | 1643 | //\r |
ae97201c | 1644 | Status = PxeBcCheckRouteTable (Private, PXEBC_IP6_ROUTE_TABLE_TIMEOUT, &GatewayAddr);\r |
a3bcde70 | 1645 | if (EFI_ERROR (Status)) {\r |
07f986f1 | 1646 | NoGateway = TRUE;\r |
a3bcde70 | 1647 | }\r |
f75a7f56 | 1648 | \r |
a3bcde70 HT |
1649 | //\r |
1650 | // There is no channel between IP6 and PXE driver about address setting,\r | |
1651 | // so it has to set the new address by Ip6ConfigProtocol manually.\r | |
1652 | //\r | |
1653 | Policy = Ip6ConfigPolicyManual;\r | |
1654 | Status = Ip6Cfg->SetData (\r | |
1655 | Ip6Cfg,\r | |
1656 | Ip6ConfigDataTypePolicy,\r | |
1657 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1658 | &Policy\r | |
1659 | );\r | |
1660 | if (EFI_ERROR (Status)) {\r | |
1661 | //\r | |
1662 | // There is no need to recover later.\r | |
1663 | //\r | |
1664 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1665 | goto ON_EXIT;\r | |
1666 | }\r | |
1667 | \r | |
a3bcde70 HT |
1668 | //\r |
1669 | // Create a notify event to set address flag when DAD if IP6 driver succeeded.\r | |
1670 | //\r | |
1671 | Status = gBS->CreateEvent (\r | |
1672 | EVT_NOTIFY_SIGNAL,\r | |
1673 | TPL_NOTIFY,\r | |
1674 | PxeBcCommonNotify,\r | |
1675 | &Private->IsAddressOk,\r | |
1676 | &MappedEvt\r | |
1677 | );\r | |
1678 | if (EFI_ERROR (Status)) {\r | |
1679 | goto ON_EXIT;\r | |
1680 | }\r | |
1681 | \r | |
bf9f7cea | 1682 | Private->IsAddressOk = FALSE;\r |
a3bcde70 HT |
1683 | Status = Ip6Cfg->RegisterDataNotify (\r |
1684 | Ip6Cfg,\r | |
1685 | Ip6ConfigDataTypeManualAddress,\r | |
1686 | MappedEvt\r | |
1687 | );\r | |
1688 | if (EFI_ERROR(Status)) {\r | |
1689 | goto ON_EXIT;\r | |
1690 | }\r | |
1691 | \r | |
1692 | Status = Ip6Cfg->SetData (\r | |
1693 | Ip6Cfg,\r | |
1694 | Ip6ConfigDataTypeManualAddress,\r | |
1695 | sizeof(EFI_IP6_CONFIG_MANUAL_ADDRESS),\r | |
1696 | &CfgAddr\r | |
1697 | );\r | |
1698 | if (EFI_ERROR(Status) && Status != EFI_NOT_READY) {\r | |
1699 | goto ON_EXIT;\r | |
bf9f7cea FS |
1700 | } else if (Status == EFI_NOT_READY) {\r |
1701 | //\r | |
1702 | // Poll the network until the asynchronous process is finished.\r | |
1703 | //\r | |
1704 | while (!Private->IsAddressOk) {\r | |
1705 | Ip6->Poll (Ip6);\r | |
1706 | }\r | |
1707 | //\r | |
1708 | // Check whether the IP6 address setting is successed.\r | |
1709 | //\r | |
1710 | DataSize = 0;\r | |
1711 | Status = Ip6Cfg->GetData (\r | |
1712 | Ip6Cfg,\r | |
1713 | Ip6ConfigDataTypeManualAddress,\r | |
1714 | &DataSize,\r | |
1715 | NULL\r | |
1716 | );\r | |
1717 | if (Status != EFI_BUFFER_TOO_SMALL || DataSize == 0) {\r | |
1718 | Status = EFI_DEVICE_ERROR;\r | |
1719 | goto ON_EXIT;\r | |
1720 | }\r | |
a3bcde70 | 1721 | \r |
bf9f7cea FS |
1722 | Ip6Addr = AllocatePool (DataSize);\r |
1723 | if (Ip6Addr == NULL) {\r | |
1724 | return EFI_OUT_OF_RESOURCES;\r | |
1725 | }\r | |
1726 | Status = Ip6Cfg->GetData (\r | |
1727 | Ip6Cfg,\r | |
1728 | Ip6ConfigDataTypeManualAddress,\r | |
1729 | &DataSize,\r | |
1730 | (VOID*) Ip6Addr\r | |
1731 | );\r | |
1732 | if (EFI_ERROR (Status)) {\r | |
1733 | Status = EFI_DEVICE_ERROR;\r | |
1734 | goto ON_EXIT;\r | |
1735 | }\r | |
a3bcde70 | 1736 | \r |
bf9f7cea FS |
1737 | for (Index = 0; Index < DataSize / sizeof (EFI_IPv6_ADDRESS); Index++) {\r |
1738 | if (CompareMem (Ip6Addr + Index, Address, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
1739 | break;\r | |
1740 | }\r | |
1741 | }\r | |
1742 | if (Index == DataSize / sizeof (EFI_IPv6_ADDRESS)) {\r | |
1743 | Status = EFI_ABORTED;\r | |
1744 | goto ON_EXIT;\r | |
a3bcde70 HT |
1745 | }\r |
1746 | }\r | |
f75a7f56 | 1747 | \r |
ae97201c FS |
1748 | //\r |
1749 | // Set the default gateway address back if needed.\r | |
1750 | //\r | |
07f986f1 | 1751 | if (!NoGateway && !NetIp6IsUnspecifiedAddr (&GatewayAddr)) {\r |
ae97201c FS |
1752 | Status = Ip6Cfg->SetData (\r |
1753 | Ip6Cfg,\r | |
1754 | Ip6ConfigDataTypeGateway,\r | |
1755 | sizeof (EFI_IPv6_ADDRESS),\r | |
1756 | &GatewayAddr\r | |
1757 | );\r | |
1758 | if (EFI_ERROR (Status)) {\r | |
1759 | goto ON_EXIT;\r | |
1760 | }\r | |
1761 | }\r | |
1762 | \r | |
a3bcde70 HT |
1763 | ON_EXIT:\r |
1764 | if (MappedEvt != NULL) {\r | |
1765 | Ip6Cfg->UnregisterDataNotify (\r | |
1766 | Ip6Cfg,\r | |
1767 | Ip6ConfigDataTypeManualAddress,\r | |
1768 | MappedEvt\r | |
1769 | );\r | |
1770 | gBS->CloseEvent (MappedEvt);\r | |
1771 | }\r | |
bf9f7cea FS |
1772 | if (Ip6Addr != NULL) {\r |
1773 | FreePool (Ip6Addr);\r | |
a3bcde70 HT |
1774 | }\r |
1775 | return Status;\r | |
1776 | }\r | |
1777 | \r | |
ae97201c FS |
1778 | /**\r |
1779 | Set the IP6 policy to Automatic.\r | |
1780 | \r | |
1781 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1782 | \r | |
1783 | @retval EFI_SUCCESS Switch the IP policy succesfully.\r | |
1784 | @retval Others Unexpect error happened.\r | |
1785 | \r | |
1786 | **/\r | |
1787 | EFI_STATUS\r | |
1788 | PxeBcSetIp6Policy (\r | |
1789 | IN PXEBC_PRIVATE_DATA *Private\r | |
1790 | )\r | |
1791 | {\r | |
1792 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1793 | EFI_STATUS Status;\r | |
1794 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1795 | UINTN DataSize;\r | |
1796 | \r | |
1797 | Ip6Cfg = Private->Ip6Cfg;\r | |
1798 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r | |
1799 | \r | |
1800 | //\r | |
1801 | // Get and store the current policy of IP6 driver.\r | |
1802 | //\r | |
1803 | Status = Ip6Cfg->GetData (\r | |
1804 | Ip6Cfg,\r | |
1805 | Ip6ConfigDataTypePolicy,\r | |
1806 | &DataSize,\r | |
1807 | &Private->Ip6Policy\r | |
1808 | );\r | |
1809 | if (EFI_ERROR (Status)) {\r | |
1810 | return Status;\r | |
1811 | }\r | |
1812 | \r | |
1813 | if (Private->Ip6Policy == Ip6ConfigPolicyManual) {\r | |
1814 | Policy = Ip6ConfigPolicyAutomatic;\r | |
1815 | Status = Ip6Cfg->SetData (\r | |
1816 | Ip6Cfg,\r | |
1817 | Ip6ConfigDataTypePolicy,\r | |
1818 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1819 | &Policy\r | |
1820 | );\r | |
1821 | if (EFI_ERROR (Status)) {\r | |
1822 | //\r | |
1823 | // There is no need to recover later.\r | |
1824 | //\r | |
1825 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1826 | }\r | |
1827 | }\r | |
1828 | \r | |
1829 | return Status;\r | |
1830 | }\r | |
1831 | \r | |
1832 | /**\r | |
1833 | This function will register the station IP address and flush IP instance to start using the new IP address.\r | |
f75a7f56 | 1834 | \r |
ae97201c FS |
1835 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r |
1836 | \r | |
1837 | @retval EFI_SUCCESS The new IP address has been configured successfully.\r | |
1838 | @retval Others Failed to configure the address.\r | |
1839 | \r | |
1840 | **/\r | |
1841 | EFI_STATUS\r | |
1842 | PxeBcSetIp6Address (\r | |
1843 | IN PXEBC_PRIVATE_DATA *Private\r | |
1844 | )\r | |
1845 | {\r | |
1846 | EFI_STATUS Status;\r | |
1847 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
f75a7f56 | 1848 | \r |
ae97201c FS |
1849 | Dhcp6 = Private->Dhcp6;\r |
1850 | \r | |
1851 | CopyMem (&Private->StationIp.v6, &Private->TmpStationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1852 | CopyMem (&Private->PxeBc.Mode->StationIp.v6, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1853 | \r | |
1854 | Status = PxeBcRegisterIp6Address (Private, &Private->StationIp.v6);\r | |
1855 | if (EFI_ERROR (Status)) {\r | |
1856 | Dhcp6->Stop (Dhcp6);\r | |
1857 | return Status;\r | |
1858 | }\r | |
1859 | \r | |
1860 | Status = PxeBcFlushStationIp (Private, &Private->StationIp, NULL);\r | |
1861 | if (EFI_ERROR (Status)) {\r | |
1862 | PxeBcUnregisterIp6Address (Private);\r | |
1863 | Dhcp6->Stop (Dhcp6);\r | |
1864 | return Status;\r | |
1865 | }\r | |
1866 | \r | |
1867 | AsciiPrint ("\n Station IP address is ");\r | |
1868 | PxeBcShowIp6Addr (&Private->StationIp.v6);\r | |
1869 | \r | |
1870 | return EFI_SUCCESS;\r | |
1871 | }\r | |
a3bcde70 HT |
1872 | \r |
1873 | /**\r | |
1874 | EFI_DHCP6_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol driver\r | |
1875 | to intercept events that occurred in the configuration process.\r | |
1876 | \r | |
1877 | @param[in] This The pointer to the EFI DHCPv6 Protocol.\r | |
1878 | @param[in] Context The pointer to the context set by EFI_DHCP6_PROTOCOL.Configure().\r | |
1879 | @param[in] CurrentState The current operational state of the EFI DHCPv Protocol driver.\r | |
1880 | @param[in] Dhcp6Event The event that occurs in the current state, which usually means a\r | |
1881 | state transition.\r | |
1882 | @param[in] Packet The DHCPv6 packet that is going to be sent or was already received.\r | |
1883 | @param[out] NewPacket The packet that is used to replace the Packet above.\r | |
1884 | \r | |
1885 | @retval EFI_SUCCESS Told the EFI DHCPv6 Protocol driver to continue the DHCP process.\r | |
1886 | @retval EFI_NOT_READY Only used in the Dhcp6Selecting state. The EFI DHCPv6 Protocol\r | |
1887 | driver will continue to wait for more packets.\r | |
1888 | @retval EFI_ABORTED Told the EFI DHCPv6 Protocol driver to abort the current process.\r | |
1889 | \r | |
1890 | **/\r | |
1891 | EFI_STATUS\r | |
1892 | EFIAPI\r | |
1893 | PxeBcDhcp6CallBack (\r | |
1894 | IN EFI_DHCP6_PROTOCOL *This,\r | |
1895 | IN VOID *Context,\r | |
1896 | IN EFI_DHCP6_STATE CurrentState,\r | |
1897 | IN EFI_DHCP6_EVENT Dhcp6Event,\r | |
1898 | IN EFI_DHCP6_PACKET *Packet,\r | |
1899 | OUT EFI_DHCP6_PACKET **NewPacket OPTIONAL\r | |
1900 | )\r | |
1901 | {\r | |
1902 | PXEBC_PRIVATE_DATA *Private;\r | |
1903 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1904 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r | |
1905 | EFI_DHCP6_PACKET *SelectAd;\r | |
1906 | EFI_STATUS Status;\r | |
1907 | BOOLEAN Received;\r | |
1908 | \r | |
1909 | if ((Dhcp6Event != Dhcp6RcvdAdvertise) &&\r | |
1910 | (Dhcp6Event != Dhcp6SelectAdvertise) &&\r | |
1911 | (Dhcp6Event != Dhcp6SendSolicit) &&\r | |
1912 | (Dhcp6Event != Dhcp6SendRequest) &&\r | |
1913 | (Dhcp6Event != Dhcp6RcvdReply)) {\r | |
1914 | return EFI_SUCCESS;\r | |
1915 | }\r | |
1916 | \r | |
1917 | ASSERT (Packet != NULL);\r | |
1918 | \r | |
1919 | Private = (PXEBC_PRIVATE_DATA *) Context;\r | |
1920 | Mode = Private->PxeBc.Mode;\r | |
1921 | Callback = Private->PxeBcCallback;\r | |
1922 | \r | |
1923 | //\r | |
1924 | // Callback to user when any traffic ocurred if has.\r | |
1925 | //\r | |
1926 | if (Dhcp6Event != Dhcp6SelectAdvertise && Callback != NULL) {\r | |
1927 | Received = (BOOLEAN) (Dhcp6Event == Dhcp6RcvdAdvertise || Dhcp6Event == Dhcp6RcvdReply);\r | |
1928 | Status = Callback->Callback (\r | |
1929 | Callback,\r | |
1930 | Private->Function,\r | |
1931 | Received,\r | |
1932 | Packet->Length,\r | |
1933 | (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp6\r | |
1934 | );\r | |
1935 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r | |
1936 | return EFI_ABORTED;\r | |
1937 | }\r | |
1938 | }\r | |
1939 | \r | |
1940 | Status = EFI_SUCCESS;\r | |
1941 | \r | |
1942 | switch (Dhcp6Event) {\r | |
1943 | \r | |
1944 | case Dhcp6SendSolicit:\r | |
632dcfd6 FS |
1945 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r |
1946 | //\r | |
1947 | // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r | |
1948 | //\r | |
1949 | Status = EFI_ABORTED;\r | |
1950 | break;\r | |
1951 | }\r | |
f75a7f56 | 1952 | \r |
129b8b09 | 1953 | //\r |
1954 | // Record the first Solicate msg time\r | |
1955 | //\r | |
1956 | if (Private->SolicitTimes == 0) {\r | |
1957 | CalcElapsedTime (Private);\r | |
1958 | Private->SolicitTimes++;\r | |
1959 | }\r | |
a3bcde70 HT |
1960 | //\r |
1961 | // Cache the dhcp discover packet to mode data directly.\r | |
1962 | //\r | |
1963 | CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp6, Packet->Length);\r | |
1964 | break;\r | |
1965 | \r | |
1966 | case Dhcp6RcvdAdvertise:\r | |
1967 | Status = EFI_NOT_READY;\r | |
632dcfd6 FS |
1968 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r |
1969 | //\r | |
1970 | // Ignore the incoming packets which exceed the maximum length.\r | |
1971 | //\r | |
1972 | break;\r | |
1973 | }\r | |
a3bcde70 HT |
1974 | if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {\r |
1975 | //\r | |
1976 | // Cache the dhcp offers to OfferBuffer[] for select later, and record\r | |
1977 | // the OfferIndex and OfferCount.\r | |
1978 | //\r | |
1979 | PxeBcCacheDhcp6Offer (Private, Packet);\r | |
1980 | }\r | |
1981 | break;\r | |
1982 | \r | |
1983 | case Dhcp6SendRequest:\r | |
632dcfd6 FS |
1984 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r |
1985 | //\r | |
1986 | // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r | |
1987 | //\r | |
1988 | Status = EFI_ABORTED;\r | |
1989 | break;\r | |
1990 | }\r | |
f75a7f56 | 1991 | \r |
a3bcde70 HT |
1992 | //\r |
1993 | // Store the request packet as seed packet for discover.\r | |
1994 | //\r | |
1995 | if (Private->Dhcp6Request != NULL) {\r | |
1996 | FreePool (Private->Dhcp6Request);\r | |
1997 | }\r | |
1998 | Private->Dhcp6Request = AllocateZeroPool (Packet->Size);\r | |
1999 | if (Private->Dhcp6Request != NULL) {\r | |
2000 | CopyMem (Private->Dhcp6Request, Packet, Packet->Size);\r | |
2001 | }\r | |
2002 | break;\r | |
2003 | \r | |
2004 | case Dhcp6SelectAdvertise:\r | |
2005 | //\r | |
2006 | // Select offer by the default policy or by order, and record the SelectIndex\r | |
2007 | // and SelectProxyType.\r | |
2008 | //\r | |
2009 | PxeBcSelectDhcp6Offer (Private);\r | |
2010 | \r | |
2011 | if (Private->SelectIndex == 0) {\r | |
2012 | Status = EFI_ABORTED;\r | |
2013 | } else {\r | |
2014 | ASSERT (NewPacket != NULL);\r | |
2015 | SelectAd = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp6.Packet.Offer;\r | |
2016 | *NewPacket = AllocateZeroPool (SelectAd->Size);\r | |
2017 | ASSERT (*NewPacket != NULL);\r | |
9f4f29cb FS |
2018 | if (*NewPacket == NULL) {\r |
2019 | return EFI_ABORTED;\r | |
2020 | }\r | |
a3bcde70 HT |
2021 | CopyMem (*NewPacket, SelectAd, SelectAd->Size);\r |
2022 | }\r | |
2023 | break;\r | |
2024 | \r | |
2025 | case Dhcp6RcvdReply:\r | |
2026 | //\r | |
2027 | // Cache the dhcp ack to Private->Dhcp6Ack, but it's not the final ack in mode data\r | |
2028 | // without verification.\r | |
2029 | //\r | |
2030 | ASSERT (Private->SelectIndex != 0);\r | |
a35dc649 FS |
2031 | Status = PxeBcCopyDhcp6Ack (Private, Packet, FALSE);\r |
2032 | if (EFI_ERROR (Status)) {\r | |
2033 | Status = EFI_ABORTED;\r | |
2034 | }\r | |
a3bcde70 HT |
2035 | break;\r |
2036 | \r | |
2037 | default:\r | |
2038 | ASSERT (0);\r | |
2039 | }\r | |
2040 | \r | |
2041 | return Status;\r | |
2042 | }\r | |
2043 | \r | |
2044 | \r | |
2045 | /**\r | |
2046 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
2047 | \r | |
2048 | @param[in] Private The pointer to PxeBc private data.\r | |
2049 | @param[in] Type PxeBc option boot item type.\r | |
2050 | @param[in] Layer The pointer to option boot item layer.\r | |
2051 | @param[in] UseBis Use BIS or not.\r | |
2052 | @param[in] DestIp The pointer to the server address.\r | |
2053 | \r | |
2054 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
2055 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
2056 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
2057 | @retval Others Failed to discover the boot file.\r | |
2058 | \r | |
2059 | **/\r | |
2060 | EFI_STATUS\r | |
2061 | PxeBcDhcp6Discover (\r | |
2062 | IN PXEBC_PRIVATE_DATA *Private,\r | |
2063 | IN UINT16 Type,\r | |
2064 | IN UINT16 *Layer,\r | |
2065 | IN BOOLEAN UseBis,\r | |
2066 | IN EFI_IP_ADDRESS *DestIp\r | |
2067 | )\r | |
2068 | {\r | |
2069 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
2070 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
2071 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
2072 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r | |
2073 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
2074 | UINTN DiscoverLen;\r | |
2075 | EFI_DHCP6_PACKET *Request;\r | |
2076 | UINTN RequestLen;\r | |
2077 | EFI_DHCP6_PACKET *Reply;\r | |
2078 | UINT8 *RequestOpt;\r | |
2079 | UINT8 *DiscoverOpt;\r | |
2080 | UINTN ReadSize;\r | |
a3bcde70 HT |
2081 | UINT16 OpCode;\r |
2082 | UINT16 OpLen;\r | |
2083 | UINT32 Xid;\r | |
2084 | EFI_STATUS Status;\r | |
2085 | \r | |
2086 | PxeBc = &Private->PxeBc;\r | |
2087 | Mode = PxeBc->Mode;\r | |
2088 | Request = Private->Dhcp6Request;\r | |
2089 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
2090 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
a3bcde70 HT |
2091 | \r |
2092 | if (!UseBis && Layer != NULL) {\r | |
2093 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r | |
2094 | }\r | |
2095 | \r | |
2096 | if (Request == NULL) {\r | |
2097 | return EFI_DEVICE_ERROR;\r | |
2098 | }\r | |
2099 | \r | |
2100 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
2101 | if (Discover == NULL) {\r | |
2102 | return EFI_OUT_OF_RESOURCES;\r | |
2103 | }\r | |
2104 | \r | |
2105 | //\r | |
2106 | // Build the discover packet by the cached request packet before.\r | |
2107 | //\r | |
2108 | Xid = NET_RANDOM (NetRandomInitSeed ());\r | |
2109 | Discover->TransactionId = HTONL (Xid);\r | |
2110 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r | |
2111 | RequestOpt = Request->Dhcp6.Option;\r | |
2112 | DiscoverOpt = Discover->DhcpOptions;\r | |
2113 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
2114 | RequestLen = DiscoverLen;\r | |
2115 | \r | |
2116 | while (RequestLen < Request->Length) {\r | |
2117 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
2118 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
2119 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
2120 | OpCode != EFI_DHCP6_IA_TYPE_TA) {\r | |
2121 | //\r | |
2122 | // Copy all the options except IA option.\r | |
2123 | //\r | |
2124 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
2125 | DiscoverOpt += (OpLen + 4);\r | |
2126 | DiscoverLen += (OpLen + 4);\r | |
2127 | }\r | |
2128 | RequestOpt += (OpLen + 4);\r | |
2129 | RequestLen += (OpLen + 4);\r | |
2130 | }\r | |
2131 | \r | |
2132 | Status = PxeBc->UdpWrite (\r | |
2133 | PxeBc,\r | |
903d1fa9 | 2134 | 0,\r |
a3bcde70 HT |
2135 | &Private->ServerIp,\r |
2136 | &DestPort,\r | |
2137 | NULL,\r | |
2138 | &Private->StationIp,\r | |
2139 | &SrcPort,\r | |
2140 | NULL,\r | |
2141 | NULL,\r | |
2142 | &DiscoverLen,\r | |
2143 | (VOID *) Discover\r | |
2144 | );\r | |
2145 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 2146 | goto ON_ERROR;\r |
a3bcde70 HT |
2147 | }\r |
2148 | \r | |
2149 | //\r | |
2150 | // Cache the right PXE reply packet here, set valid flag later.\r | |
2151 | // Especially for PXE discover packet, store it into mode data here.\r | |
2152 | //\r | |
2153 | if (Private->IsDoDiscover) {\r | |
2154 | CopyMem (&Mode->PxeDiscover.Dhcpv6, Discover, DiscoverLen);\r | |
2155 | Reply = &Private->PxeReply.Dhcp6.Packet.Ack;\r | |
2156 | } else {\r | |
2157 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
2158 | }\r | |
2159 | ReadSize = (UINTN) Reply->Size;\r | |
2160 | \r | |
357af285 | 2161 | //\r |
2162 | // Start Udp6Read instance\r | |
2163 | //\r | |
2164 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
2165 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 2166 | goto ON_ERROR;\r |
357af285 | 2167 | }\r |
f75a7f56 | 2168 | \r |
a3bcde70 HT |
2169 | Status = PxeBc->UdpRead (\r |
2170 | PxeBc,\r | |
903d1fa9 FS |
2171 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
2172 | NULL,\r | |
a3bcde70 HT |
2173 | &SrcPort,\r |
2174 | &Private->ServerIp,\r | |
2175 | &DestPort,\r | |
2176 | NULL,\r | |
2177 | NULL,\r | |
2178 | &ReadSize,\r | |
2179 | (VOID *) &Reply->Dhcp6\r | |
2180 | );\r | |
357af285 | 2181 | //\r |
2182 | // Stop Udp6Read instance\r | |
2183 | //\r | |
2184 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
a3bcde70 | 2185 | if (EFI_ERROR (Status)) {\r |
2fad330f | 2186 | goto ON_ERROR;\r |
a3bcde70 HT |
2187 | }\r |
2188 | \r | |
2189 | return EFI_SUCCESS;\r | |
2fad330f FS |
2190 | \r |
2191 | ON_ERROR:\r | |
2192 | if (Discover != NULL) {\r | |
2193 | FreePool (Discover);\r | |
2194 | }\r | |
2195 | \r | |
2196 | return Status;\r | |
a3bcde70 HT |
2197 | }\r |
2198 | \r | |
2199 | \r | |
2200 | /**\r | |
2201 | Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.\r | |
2202 | \r | |
2203 | @param[in] Private The pointer to PxeBc private data.\r | |
2204 | @param[in] Dhcp6 The pointer to the EFI_DHCP6_PROTOCOL\r | |
2205 | \r | |
2206 | @retval EFI_SUCCESS The S.A.R.R. process successfully finished.\r | |
2207 | @retval Others Failed to finish the S.A.R.R. process.\r | |
2208 | \r | |
2209 | **/\r | |
2210 | EFI_STATUS\r | |
2211 | PxeBcDhcp6Sarr (\r | |
2212 | IN PXEBC_PRIVATE_DATA *Private,\r | |
2213 | IN EFI_DHCP6_PROTOCOL *Dhcp6\r | |
2214 | )\r | |
2215 | {\r | |
2216 | EFI_PXE_BASE_CODE_MODE *PxeMode;\r | |
2217 | EFI_DHCP6_CONFIG_DATA Config;\r | |
2218 | EFI_DHCP6_MODE_DATA Mode;\r | |
2219 | EFI_DHCP6_RETRANSMISSION *Retransmit;\r | |
2220 | EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_OPTION_MAX_NUM];\r | |
2221 | UINT8 Buffer[PXEBC_DHCP6_OPTION_MAX_SIZE];\r | |
2222 | UINT32 OptCount;\r | |
2223 | EFI_STATUS Status;\r | |
ed2bfecb | 2224 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r |
2225 | EFI_STATUS TimerStatus;\r | |
2226 | EFI_EVENT Timer;\r | |
2227 | UINT64 GetMappingTimeOut;\r | |
2228 | UINTN DataSize;\r | |
2229 | EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;\r | |
a3bcde70 HT |
2230 | \r |
2231 | Status = EFI_SUCCESS;\r | |
2232 | PxeMode = Private->PxeBc.Mode;\r | |
ed2bfecb | 2233 | Ip6Cfg = Private->Ip6Cfg;\r |
2234 | Timer = NULL;\r | |
a3bcde70 HT |
2235 | \r |
2236 | //\r | |
2237 | // Build option list for the request packet.\r | |
2238 | //\r | |
2239 | OptCount = PxeBcBuildDhcp6Options (Private, OptList, Buffer);\r | |
2240 | ASSERT (OptCount> 0);\r | |
2241 | \r | |
2242 | Retransmit = AllocateZeroPool (sizeof (EFI_DHCP6_RETRANSMISSION));\r | |
2243 | if (Retransmit == NULL) {\r | |
2244 | return EFI_OUT_OF_RESOURCES;\r | |
2245 | }\r | |
2246 | \r | |
2247 | ZeroMem (&Mode, sizeof (EFI_DHCP6_MODE_DATA));\r | |
2248 | ZeroMem (&Config, sizeof (EFI_DHCP6_CONFIG_DATA));\r | |
2249 | \r | |
2250 | Config.OptionCount = OptCount;\r | |
2251 | Config.OptionList = OptList;\r | |
2252 | Config.Dhcp6Callback = PxeBcDhcp6CallBack;\r | |
2253 | Config.CallbackContext = Private;\r | |
2254 | Config.IaInfoEvent = NULL;\r | |
2255 | Config.RapidCommit = FALSE;\r | |
2256 | Config.ReconfigureAccept = FALSE;\r | |
75dce340 | 2257 | Config.IaDescriptor.IaId = Private->IaId;\r |
a3bcde70 HT |
2258 | Config.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;\r |
2259 | Config.SolicitRetransmission = Retransmit;\r | |
2260 | Retransmit->Irt = 4;\r | |
2261 | Retransmit->Mrc = 4;\r | |
2262 | Retransmit->Mrt = 32;\r | |
2263 | Retransmit->Mrd = 60;\r | |
2264 | \r | |
2265 | //\r | |
2266 | // Configure the DHCPv6 instance for PXE boot.\r | |
2267 | //\r | |
2268 | Status = Dhcp6->Configure (Dhcp6, &Config);\r | |
ed2bfecb | 2269 | FreePool (Retransmit);\r |
a3bcde70 | 2270 | if (EFI_ERROR (Status)) {\r |
a3bcde70 HT |
2271 | return Status;\r |
2272 | }\r | |
2273 | \r | |
2274 | //\r | |
2275 | // Initialize the record fields for DHCPv6 offer in private data.\r | |
2276 | //\r | |
2277 | Private->IsProxyRecved = FALSE;\r | |
2278 | Private->OfferNum = 0;\r | |
2279 | Private->SelectIndex = 0;\r | |
2280 | ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));\r | |
2281 | ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));\r | |
2282 | \r | |
2283 | \r | |
2284 | //\r | |
2285 | // Start DHCPv6 S.A.R.R. process to acquire IPv6 address.\r | |
2286 | //\r | |
2287 | Status = Dhcp6->Start (Dhcp6);\r | |
ed2bfecb | 2288 | if (Status == EFI_NO_MAPPING) {\r |
2289 | //\r | |
2290 | // IP6 Linklocal address is not available for use, so stop current Dhcp process\r | |
2291 | // and wait for duplicate address detection to finish.\r | |
2292 | //\r | |
2293 | Dhcp6->Stop (Dhcp6);\r | |
2294 | \r | |
2295 | //\r | |
2296 | // Get Duplicate Address Detection Transmits count.\r | |
2297 | //\r | |
2298 | DataSize = sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS);\r | |
2299 | Status = Ip6Cfg->GetData (\r | |
2300 | Ip6Cfg,\r | |
2301 | Ip6ConfigDataTypeDupAddrDetectTransmits,\r | |
2302 | &DataSize,\r | |
2303 | &DadXmits\r | |
2304 | );\r | |
2305 | if (EFI_ERROR (Status)) {\r | |
2306 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2307 | return Status;\r | |
2308 | }\r | |
2309 | \r | |
2310 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
2311 | if (EFI_ERROR (Status)) {\r | |
2312 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2313 | return Status;\r | |
2314 | }\r | |
2315 | \r | |
2316 | GetMappingTimeOut = TICKS_PER_SECOND * DadXmits.DupAddrDetectTransmits + PXEBC_DAD_ADDITIONAL_DELAY;\r | |
2317 | Status = gBS->SetTimer (Timer, TimerRelative, GetMappingTimeOut);\r | |
2318 | if (EFI_ERROR (Status)) {\r | |
2319 | gBS->CloseEvent (Timer);\r | |
2320 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2321 | return Status;\r | |
2322 | }\r | |
2323 | \r | |
2324 | do {\r | |
f75a7f56 | 2325 | \r |
ed2bfecb | 2326 | TimerStatus = gBS->CheckEvent (Timer);\r |
2327 | if (!EFI_ERROR (TimerStatus)) {\r | |
2328 | Status = Dhcp6->Start (Dhcp6);\r | |
2329 | }\r | |
2330 | } while (TimerStatus == EFI_NOT_READY);\r | |
f75a7f56 | 2331 | \r |
ed2bfecb | 2332 | gBS->CloseEvent (Timer);\r |
2333 | }\r | |
a3bcde70 HT |
2334 | if (EFI_ERROR (Status)) {\r |
2335 | if (Status == EFI_ICMP_ERROR) {\r | |
2336 | PxeMode->IcmpErrorReceived = TRUE;\r | |
2337 | }\r | |
2338 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2339 | return Status;\r | |
2340 | }\r | |
2341 | \r | |
2342 | //\r | |
2343 | // Get the acquired IPv6 address and store them.\r | |
2344 | //\r | |
2345 | Status = Dhcp6->GetModeData (Dhcp6, &Mode, NULL);\r | |
2346 | if (EFI_ERROR (Status)) {\r | |
2347 | Dhcp6->Stop (Dhcp6);\r | |
2348 | return Status;\r | |
2349 | }\r | |
2350 | \r | |
bec55c33 | 2351 | ASSERT ((Mode.Ia != NULL) && (Mode.Ia->State == Dhcp6Bound));\r |
ae97201c FS |
2352 | //\r |
2353 | // DHCP6 doesn't have an option to specify the router address on the subnet, the only way to get the\r | |
2354 | // router address in IP6 is the router discovery mechanism (the RS and RA, which only be handled when\r | |
2355 | // the IP policy is Automatic). So we just hold the station IP address here and leave the IP policy as\r | |
f75a7f56 | 2356 | // Automatic, until we get the server IP address. This could let IP6 driver finish the router discovery\r |
ae97201c FS |
2357 | // to find a valid router address.\r |
2358 | //\r | |
2359 | CopyMem (&Private->TmpStationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));\r | |
ce22514e ZL |
2360 | if (Mode.ClientId != NULL) {\r |
2361 | FreePool (Mode.ClientId);\r | |
2362 | }\r | |
2363 | if (Mode.Ia != NULL) {\r | |
2364 | FreePool (Mode.Ia);\r | |
2365 | }\r | |
a3bcde70 HT |
2366 | //\r |
2367 | // Check the selected offer whether BINL retry is needed.\r | |
2368 | //\r | |
2369 | Status = PxeBcHandleDhcp6Offer (Private);\r | |
2370 | if (EFI_ERROR (Status)) {\r | |
a3bcde70 HT |
2371 | Dhcp6->Stop (Dhcp6);\r |
2372 | return Status;\r | |
2373 | }\r | |
f75a7f56 | 2374 | \r |
a3bcde70 HT |
2375 | return EFI_SUCCESS;\r |
2376 | }\r |