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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 |
ce22514e | 5 | Copyright (c) 2009 - 2016, 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 | |
95 | OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_ORO);\r | |
96 | OptList[Index]->OpLen = HTONS (4);\r | |
97 | OptEnt.Oro = (PXEBC_DHCP6_OPTION_ORO *) OptList[Index]->Data;\r | |
98 | OptEnt.Oro->OpCode[0] = HTONS(PXEBC_DHCP6_OPT_BOOT_FILE_URL);\r | |
99 | OptEnt.Oro->OpCode[1] = HTONS(PXEBC_DHCP6_OPT_BOOT_FILE_PARAM);\r | |
100 | Index++;\r | |
101 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
102 | \r | |
103 | //\r | |
104 | // Append client network device interface option\r | |
105 | //\r | |
106 | OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_UNDI);\r | |
852b6341 | 107 | OptList[Index]->OpLen = HTONS ((UINT16)3);\r |
a3bcde70 HT |
108 | OptEnt.Undi = (PXEBC_DHCP6_OPTION_UNDI *) OptList[Index]->Data;\r |
109 | \r | |
110 | if (Private->Nii != NULL) {\r | |
111 | OptEnt.Undi->Type = Private->Nii->Type;\r | |
112 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r | |
113 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r | |
114 | } else {\r | |
115 | OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r | |
116 | OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r | |
117 | OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r | |
118 | }\r | |
119 | \r | |
a3bcde70 HT |
120 | Index++;\r |
121 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
122 | \r | |
123 | //\r | |
124 | // Append client system architecture option\r | |
125 | //\r | |
126 | OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_ARCH);\r | |
127 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_ARCH));\r | |
128 | OptEnt.Arch = (PXEBC_DHCP6_OPTION_ARCH *) OptList[Index]->Data;\r | |
129 | Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r | |
130 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r | |
131 | Index++;\r | |
132 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
133 | \r | |
134 | //\r | |
135 | // Append vendor class option to store the PXE class identifier.\r | |
136 | //\r | |
137 | OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_VENDOR_CLASS);\r | |
138 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_VENDOR_CLASS));\r | |
139 | OptEnt.VendorClass = (PXEBC_DHCP6_OPTION_VENDOR_CLASS *) OptList[Index]->Data;\r | |
140 | OptEnt.VendorClass->Vendor = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);\r | |
141 | OptEnt.VendorClass->ClassLen = HTONS ((UINT16) sizeof (PXEBC_CLASS_ID));\r | |
142 | CopyMem (\r | |
143 | &OptEnt.VendorClass->ClassId,\r | |
144 | DEFAULT_CLASS_ID_DATA,\r | |
145 | sizeof (PXEBC_CLASS_ID)\r | |
146 | );\r | |
147 | PxeBcUintnToAscDecWithFormat (\r | |
148 | EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE,\r | |
149 | OptEnt.VendorClass->ClassId.ArchitectureType,\r | |
150 | sizeof (OptEnt.VendorClass->ClassId.ArchitectureType)\r | |
151 | );\r | |
152 | \r | |
153 | if (Private->Nii != NULL) {\r | |
154 | CopyMem (\r | |
155 | OptEnt.VendorClass->ClassId.InterfaceName,\r | |
156 | Private->Nii->StringId,\r | |
157 | sizeof (OptEnt.VendorClass->ClassId.InterfaceName)\r | |
158 | );\r | |
159 | PxeBcUintnToAscDecWithFormat (\r | |
160 | Private->Nii->MajorVer,\r | |
161 | OptEnt.VendorClass->ClassId.UndiMajor,\r | |
162 | sizeof (OptEnt.VendorClass->ClassId.UndiMajor)\r | |
163 | );\r | |
164 | PxeBcUintnToAscDecWithFormat (\r | |
165 | Private->Nii->MinorVer,\r | |
166 | OptEnt.VendorClass->ClassId.UndiMinor,\r | |
167 | sizeof (OptEnt.VendorClass->ClassId.UndiMinor)\r | |
168 | );\r | |
169 | }\r | |
170 | \r | |
171 | Index++;\r | |
172 | \r | |
173 | return Index;\r | |
174 | }\r | |
175 | \r | |
176 | \r | |
177 | /**\r | |
178 | Cache the DHCPv6 packet.\r | |
179 | \r | |
180 | @param[in] Dst The pointer to the cache buffer for DHCPv6 packet.\r | |
181 | @param[in] Src The pointer to the DHCPv6 packet to be cached.\r | |
182 | \r | |
183 | **/\r | |
184 | VOID\r | |
185 | PxeBcCacheDhcp6Packet (\r | |
186 | IN EFI_DHCP6_PACKET *Dst,\r | |
187 | IN EFI_DHCP6_PACKET *Src\r | |
188 | )\r | |
189 | {\r | |
190 | ASSERT (Dst->Size >= Src->Length);\r | |
191 | \r | |
192 | CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);\r | |
193 | Dst->Length = Src->Length;\r | |
194 | }\r | |
195 | \r | |
196 | \r | |
197 | /**\r | |
198 | Free all the nodes in the list for boot file.\r | |
199 | \r | |
200 | @param[in] Head The pointer to the head of list.\r | |
201 | \r | |
202 | **/\r | |
203 | VOID\r | |
204 | PxeBcFreeBootFileOption (\r | |
205 | IN LIST_ENTRY *Head\r | |
206 | )\r | |
207 | {\r | |
208 | LIST_ENTRY *Entry;\r | |
209 | LIST_ENTRY *NextEntry;\r | |
210 | PXEBC_DHCP6_OPTION_NODE *Node;\r | |
211 | \r | |
212 | NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, Head) {\r | |
213 | Node = NET_LIST_USER_STRUCT (Entry, PXEBC_DHCP6_OPTION_NODE, Link);\r | |
214 | RemoveEntryList (Entry);\r | |
215 | FreePool (Node);\r | |
216 | }\r | |
217 | }\r | |
218 | \r | |
219 | \r | |
220 | /**\r | |
221 | Parse the Boot File URL option.\r | |
222 | \r | |
223 | @param[out] FileName The pointer to the boot file name.\r | |
224 | @param[in, out] SrvAddr The pointer to the boot server address.\r | |
225 | @param[in] BootFile The pointer to the boot file URL option data.\r | |
226 | @param[in] Length The length of the boot file URL option data.\r | |
227 | \r | |
228 | @retval EFI_ABORTED User cancel operation.\r | |
229 | @retval EFI_SUCCESS Selected the boot menu successfully.\r | |
230 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r | |
231 | \r | |
232 | **/\r | |
233 | EFI_STATUS\r | |
234 | PxeBcExtractBootFileUrl (\r | |
235 | OUT UINT8 **FileName,\r | |
236 | IN OUT EFI_IPv6_ADDRESS *SrvAddr,\r | |
237 | IN CHAR8 *BootFile,\r | |
238 | IN UINT16 Length\r | |
239 | )\r | |
240 | {\r | |
241 | UINT16 PrefixLen;\r | |
01d89e9c | 242 | CHAR8 *BootFileNamePtr;\r |
243 | CHAR8 *BootFileName;\r | |
a3bcde70 HT |
244 | UINT16 BootFileNameLen;\r |
245 | CHAR8 *TmpStr;\r | |
129b8b09 | 246 | CHAR8 TmpChar;\r |
a3bcde70 HT |
247 | CHAR8 *ServerAddressOption;\r |
248 | CHAR8 *ServerAddress;\r | |
eb2710af | 249 | CHAR8 *ModeStr;\r |
a3bcde70 HT |
250 | EFI_STATUS Status;\r |
251 | \r | |
252 | //\r | |
253 | // The format of the Boot File URL option is:\r | |
254 | //\r | |
255 | // 0 1 2 3\r | |
256 | // 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 | |
257 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
258 | // | OPT_BOOTFILE_URL | option-len |\r | |
259 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
260 | // | |\r | |
261 | // . bootfile-url (variable length) .\r | |
262 | // | |\r | |
263 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
264 | //\r | |
265 | \r | |
266 | //\r | |
c01fa590 | 267 | // Based upon RFC 5970 and UEFI 2.3 Errata D specification, bootfile-url format\r |
268 | // is tftp://[SERVER_ADDRESS]/BOOTFILE_NAME\r | |
a3bcde70 HT |
269 | // As an example where the BOOTFILE_NAME is the EFI loader and\r |
270 | // SERVER_ADDRESS is the ASCII encoding of an IPV6 address.\r | |
271 | //\r | |
272 | PrefixLen = (UINT16) AsciiStrLen (PXEBC_DHCP6_BOOT_FILE_URL_PREFIX);\r | |
273 | \r | |
274 | if (Length <= PrefixLen ||\r | |
275 | CompareMem (BootFile, PXEBC_DHCP6_BOOT_FILE_URL_PREFIX, PrefixLen) != 0) {\r | |
276 | return EFI_NOT_FOUND;\r | |
277 | }\r | |
278 | \r | |
279 | BootFile = BootFile + PrefixLen;\r | |
280 | Length = (UINT16) (Length - PrefixLen);\r | |
281 | \r | |
282 | TmpStr = (CHAR8 *) AllocateZeroPool (Length + 1);\r | |
283 | if (TmpStr == NULL) {\r | |
284 | return EFI_OUT_OF_RESOURCES;\r | |
285 | }\r | |
286 | \r | |
287 | CopyMem (TmpStr, BootFile, Length);\r | |
288 | TmpStr[Length] = '\0';\r | |
289 | \r | |
290 | //\r | |
291 | // Get the part of SERVER_ADDRESS string.\r | |
292 | //\r | |
293 | ServerAddressOption = TmpStr;\r | |
294 | if (*ServerAddressOption != PXEBC_ADDR_START_DELIMITER) {\r | |
295 | FreePool (TmpStr);\r | |
296 | return EFI_INVALID_PARAMETER;\r | |
297 | }\r | |
298 | \r | |
299 | ServerAddressOption ++;\r | |
300 | ServerAddress = ServerAddressOption;\r | |
301 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r | |
302 | ServerAddress++;\r | |
303 | }\r | |
304 | \r | |
305 | if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r | |
306 | FreePool (TmpStr);\r | |
307 | return EFI_INVALID_PARAMETER;\r | |
308 | }\r | |
309 | \r | |
310 | *ServerAddress = '\0';\r | |
311 | \r | |
312 | //\r | |
313 | // Convert the string of server address to Ipv6 address format and store it.\r | |
314 | //\r | |
315 | Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);\r | |
316 | if (EFI_ERROR (Status)) {\r | |
317 | FreePool (TmpStr);\r | |
318 | return Status;\r | |
319 | }\r | |
320 | \r | |
321 | //\r | |
322 | // Get the part of BOOTFILE_NAME string.\r | |
323 | //\r | |
01d89e9c | 324 | BootFileNamePtr = (CHAR8*)((UINTN)ServerAddress + 1);\r |
a3bcde70 HT |
325 | if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {\r |
326 | FreePool (TmpStr);\r | |
327 | return EFI_INVALID_PARAMETER;\r | |
328 | }\r | |
329 | \r | |
330 | ++BootFileNamePtr;\r | |
331 | BootFileNameLen = (UINT16)(Length - (UINT16) ((UINTN)BootFileNamePtr - (UINTN)TmpStr) + 1);\r | |
332 | if (BootFileNameLen != 0 || FileName != NULL) {\r | |
eb2710af | 333 | //\r |
334 | // Remove trailing mode=octet if present and ignore. All other modes are\r | |
335 | // invalid for netboot6, so reject them.\r | |
336 | //\r | |
337 | ModeStr = AsciiStrStr (BootFileNamePtr, ";mode=octet");\r | |
338 | if (ModeStr != NULL && *(ModeStr + AsciiStrLen (";mode=octet")) == '\0') {\r | |
339 | *ModeStr = '\0';\r | |
340 | } else if (AsciiStrStr (BootFileNamePtr, ";mode=") != NULL) {\r | |
341 | return EFI_INVALID_PARAMETER;\r | |
342 | }\r | |
343 | \r | |
129b8b09 | 344 | //\r |
345 | // Extract boot file name from URL.\r | |
346 | //\r | |
01d89e9c | 347 | BootFileName = (CHAR8 *) AllocateZeroPool (BootFileNameLen);\r |
a3bcde70 HT |
348 | if (BootFileName == NULL) {\r |
349 | FreePool (TmpStr);\r | |
350 | return EFI_OUT_OF_RESOURCES;\r | |
351 | }\r | |
01d89e9c | 352 | *FileName = (UINT8*) BootFileName;\r |
a3bcde70 | 353 | \r |
129b8b09 | 354 | //\r |
355 | // Decode percent-encoding in boot file name.\r | |
356 | //\r | |
357 | while (*BootFileNamePtr != '\0') {\r | |
358 | if (*BootFileNamePtr == '%') {\r | |
359 | TmpChar = *(BootFileNamePtr+ 3);\r | |
360 | *(BootFileNamePtr+ 3) = '\0';\r | |
2f3f1a64 | 361 | *BootFileName = (UINT8) AsciiStrHexToUintn ((CHAR8*)(BootFileNamePtr + 1));\r |
129b8b09 | 362 | BootFileName++;\r |
363 | *(BootFileNamePtr+ 3) = TmpChar;\r | |
364 | BootFileNamePtr += 3;\r | |
365 | } else {\r | |
366 | *BootFileName = *BootFileNamePtr;\r | |
367 | BootFileName++;\r | |
368 | BootFileNamePtr++;\r | |
369 | }\r | |
370 | }\r | |
371 | *BootFileName = '\0';\r | |
372 | }\r | |
a3bcde70 HT |
373 | \r |
374 | FreePool (TmpStr);\r | |
375 | \r | |
376 | return EFI_SUCCESS;\r | |
377 | }\r | |
378 | \r | |
379 | \r | |
380 | /**\r | |
381 | Parse the Boot File Parameter option.\r | |
382 | \r | |
383 | @param[in] BootFilePara The pointer to boot file parameter option data.\r | |
384 | @param[out] BootFileSize The pointer to the parsed boot file size.\r | |
385 | \r | |
386 | @retval EFI_SUCCESS Successfully obtained the boot file size from parameter option.\r | |
387 | @retval EFI_NOT_FOUND Failed to extract the boot file size from parameter option.\r | |
388 | \r | |
389 | **/\r | |
390 | EFI_STATUS\r | |
391 | PxeBcExtractBootFileParam (\r | |
392 | IN CHAR8 *BootFilePara,\r | |
393 | OUT UINT16 *BootFileSize\r | |
394 | )\r | |
395 | {\r | |
396 | UINT16 Length;\r | |
397 | UINT8 Index;\r | |
398 | UINT8 Digit;\r | |
399 | UINT32 Size;\r | |
400 | \r | |
401 | CopyMem (&Length, BootFilePara, sizeof (UINT16));\r | |
402 | Length = NTOHS (Length);\r | |
403 | \r | |
404 | //\r | |
405 | // The BootFile Size should be 1~5 byte ASCII strings\r | |
406 | //\r | |
407 | if (Length < 1 || Length > 5) {\r | |
408 | return EFI_NOT_FOUND;\r | |
409 | }\r | |
410 | \r | |
411 | //\r | |
412 | // Extract the value of BootFile Size.\r | |
413 | //\r | |
414 | BootFilePara = BootFilePara + sizeof (UINT16);\r | |
415 | Size = 0;\r | |
416 | for (Index = 0; Index < Length; Index++) {\r | |
417 | if (EFI_ERROR (PxeBcUniHexToUint8 (&Digit, *(BootFilePara + Index)))) {\r | |
418 | return EFI_NOT_FOUND;\r | |
419 | }\r | |
420 | \r | |
421 | Size = (Size + Digit) * 10;\r | |
422 | }\r | |
423 | \r | |
424 | Size = Size / 10;\r | |
425 | if (Size > PXEBC_DHCP6_MAX_BOOT_FILE_SIZE) {\r | |
426 | return EFI_NOT_FOUND;\r | |
427 | }\r | |
428 | \r | |
429 | *BootFileSize = (UINT16) Size;\r | |
430 | return EFI_SUCCESS;\r | |
431 | }\r | |
432 | \r | |
433 | \r | |
434 | /**\r | |
435 | Parse the cached DHCPv6 packet, including all the options.\r | |
436 | \r | |
437 | @param[in] Cache6 The pointer to a cached DHCPv6 packet.\r | |
438 | \r | |
439 | @retval EFI_SUCCESS Parsed the DHCPv6 packet successfully.\r | |
440 | @retval EFI_DEVICE_ERROR Failed to parse and invalid the packet.\r | |
441 | \r | |
442 | **/\r | |
443 | EFI_STATUS\r | |
444 | PxeBcParseDhcp6Packet (\r | |
445 | IN PXEBC_DHCP6_PACKET_CACHE *Cache6\r | |
446 | )\r | |
447 | {\r | |
448 | EFI_DHCP6_PACKET *Offer;\r | |
449 | EFI_DHCP6_PACKET_OPTION **Options;\r | |
450 | EFI_DHCP6_PACKET_OPTION *Option;\r | |
451 | PXEBC_OFFER_TYPE OfferType;\r | |
452 | BOOLEAN IsProxyOffer;\r | |
453 | BOOLEAN IsPxeOffer;\r | |
454 | UINT32 Offset;\r | |
455 | UINT32 Length;\r | |
456 | UINT32 EnterpriseNum;\r | |
457 | \r | |
458 | IsProxyOffer = TRUE;\r | |
459 | IsPxeOffer = FALSE;\r | |
460 | Offer = &Cache6->Packet.Offer;\r | |
461 | Options = Cache6->OptList;\r | |
462 | \r | |
463 | ZeroMem (Cache6->OptList, sizeof (Cache6->OptList));\r | |
464 | \r | |
465 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option);\r | |
466 | Offset = 0;\r | |
467 | Length = GET_DHCP6_OPTION_SIZE (Offer);\r | |
468 | \r | |
469 | //\r | |
470 | // OpLen and OpCode here are both stored in network order, since they are from original packet.\r | |
471 | //\r | |
472 | while (Offset < Length) {\r | |
473 | \r | |
474 | if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_IA_NA) {\r | |
475 | Options[PXEBC_DHCP6_IDX_IA_NA] = Option;\r | |
476 | } else if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_BOOT_FILE_URL) {\r | |
477 | //\r | |
478 | // The server sends this option to inform the client about an URL to a boot file.\r | |
479 | //\r | |
480 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_URL] = Option;\r | |
481 | } else if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_BOOT_FILE_PARAM) {\r | |
482 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_PARAM] = Option;\r | |
483 | } else if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_VENDOR_CLASS) {\r | |
484 | Options[PXEBC_DHCP6_IDX_VENDOR_CLASS] = Option;\r | |
485 | }\r | |
486 | \r | |
487 | Offset += (NTOHS (Option->OpLen) + 4);\r | |
488 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option + Offset);\r | |
489 | }\r | |
490 | \r | |
491 | //\r | |
ae97201c | 492 | // The offer with assigned client address is NOT a proxy offer.\r |
a3bcde70 HT |
493 | // An ia_na option, embeded with valid ia_addr option and a status_code of success.\r |
494 | //\r | |
495 | Option = Options[PXEBC_DHCP6_IDX_IA_NA];\r | |
129b8b09 | 496 | if (Option != NULL) {\r |
a3bcde70 HT |
497 | Option = PxeBcParseDhcp6Options (\r |
498 | Option->Data + 12,\r | |
499 | NTOHS (Option->OpLen),\r | |
500 | PXEBC_DHCP6_OPT_STATUS_CODE\r | |
501 | );\r | |
129b8b09 | 502 | if ((Option != NULL && Option->Data[0] == 0) || (Option == NULL)) {\r |
a3bcde70 HT |
503 | IsProxyOffer = FALSE;\r |
504 | }\r | |
505 | }\r | |
506 | \r | |
507 | //\r | |
508 | // The offer with "PXEClient" is a pxe offer.\r | |
509 | //\r | |
510 | Option = Options[PXEBC_DHCP6_IDX_VENDOR_CLASS];\r | |
129b8b09 | 511 | EnterpriseNum = HTONL(PXEBC_DHCP6_ENTERPRISE_NUM);\r |
512 | \r | |
a3bcde70 HT |
513 | if (Option != NULL &&\r |
514 | NTOHS(Option->OpLen) >= 13 &&\r | |
515 | CompareMem (Option->Data, &EnterpriseNum, sizeof (UINT32)) == 0 &&\r | |
129b8b09 | 516 | CompareMem (&Option->Data[6], DEFAULT_CLASS_ID_DATA, 9) == 0) {\r |
a3bcde70 HT |
517 | IsPxeOffer = TRUE;\r |
518 | }\r | |
519 | \r | |
520 | //\r | |
521 | // Determine offer type of the dhcp6 packet.\r | |
522 | //\r | |
523 | if (IsPxeOffer) {\r | |
524 | //\r | |
525 | // It's a binl offer only with PXEClient.\r | |
526 | //\r | |
527 | OfferType = IsProxyOffer ? PxeOfferTypeProxyBinl : PxeOfferTypeDhcpBinl;\r | |
528 | } else {\r | |
529 | //\r | |
530 | // It's a dhcp only offer, which is a pure dhcp6 offer packet.\r | |
531 | //\r | |
532 | OfferType = PxeOfferTypeDhcpOnly;\r | |
533 | }\r | |
534 | \r | |
535 | Cache6->OfferType = OfferType;\r | |
536 | \r | |
537 | return EFI_SUCCESS;\r | |
538 | }\r | |
539 | \r | |
540 | \r | |
541 | /**\r | |
542 | Cache the DHCPv6 ack packet, and parse it on demand.\r | |
543 | \r | |
544 | @param[in] Private The pointer to PxeBc private data.\r | |
545 | @param[in] Ack The pointer to the DHCPv6 ack packet.\r | |
546 | @param[in] Verified If TRUE, parse the ACK packet and store info into mode data.\r | |
547 | \r | |
548 | **/\r | |
549 | VOID\r | |
550 | PxeBcCopyDhcp6Ack (\r | |
551 | IN PXEBC_PRIVATE_DATA *Private,\r | |
552 | IN EFI_DHCP6_PACKET *Ack,\r | |
553 | IN BOOLEAN Verified\r | |
554 | )\r | |
555 | {\r | |
556 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
557 | \r | |
558 | Mode = Private->PxeBc.Mode;\r | |
559 | \r | |
560 | PxeBcCacheDhcp6Packet (&Private->DhcpAck.Dhcp6.Packet.Ack, Ack);\r | |
561 | \r | |
562 | if (Verified) {\r | |
563 | //\r | |
564 | // Parse the ack packet and store it into mode data if needed.\r | |
565 | //\r | |
566 | PxeBcParseDhcp6Packet (&Private->DhcpAck.Dhcp6);\r | |
567 | CopyMem (&Mode->DhcpAck.Dhcpv6, &Ack->Dhcp6, Ack->Length);\r | |
568 | Mode->DhcpAckReceived = TRUE;\r | |
569 | }\r | |
570 | }\r | |
571 | \r | |
572 | \r | |
573 | /**\r | |
574 | Cache the DHCPv6 proxy offer packet according to the received order.\r | |
575 | \r | |
576 | @param[in] Private The pointer to PxeBc private data.\r | |
577 | @param[in] OfferIndex The received order of offer packets.\r | |
578 | \r | |
579 | **/\r | |
580 | VOID\r | |
581 | PxeBcCopyDhcp6Proxy (\r | |
582 | IN PXEBC_PRIVATE_DATA *Private,\r | |
583 | IN UINT32 OfferIndex\r | |
584 | )\r | |
585 | {\r | |
586 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
587 | EFI_DHCP6_PACKET *Offer;\r | |
588 | \r | |
589 | ASSERT (OfferIndex < Private->OfferNum);\r | |
590 | ASSERT (OfferIndex < PXEBC_OFFER_MAX_NUM);\r | |
591 | \r | |
592 | Mode = Private->PxeBc.Mode;\r | |
593 | Offer = &Private->OfferBuffer[OfferIndex].Dhcp6.Packet.Offer;\r | |
594 | \r | |
595 | //\r | |
596 | // Cache the proxy offer packet and parse it.\r | |
597 | //\r | |
598 | PxeBcCacheDhcp6Packet (&Private->ProxyOffer.Dhcp6.Packet.Offer, Offer);\r | |
599 | PxeBcParseDhcp6Packet (&Private->ProxyOffer.Dhcp6);\r | |
600 | \r | |
601 | //\r | |
602 | // Store this packet into mode data.\r | |
603 | //\r | |
604 | CopyMem (&Mode->ProxyOffer.Dhcpv6, &Offer->Dhcp6, Offer->Length);\r | |
605 | Mode->ProxyOfferReceived = TRUE;\r | |
606 | }\r | |
607 | \r | |
129b8b09 | 608 | /**\r |
609 | Seek the address of the first byte of the option header.\r | |
610 | \r | |
611 | @param[in] Buf The pointer to the buffer.\r | |
612 | @param[in] SeekLen The length to seek.\r | |
613 | @param[in] OptType The option type.\r | |
614 | \r | |
615 | @retval NULL If it failed to seek the option.\r | |
616 | @retval others The position to the option.\r | |
617 | \r | |
618 | **/\r | |
619 | UINT8 *\r | |
620 | PxeBcDhcp6SeekOption (\r | |
621 | IN UINT8 *Buf,\r | |
622 | IN UINT32 SeekLen,\r | |
623 | IN UINT16 OptType\r | |
624 | )\r | |
625 | {\r | |
626 | UINT8 *Cursor;\r | |
627 | UINT8 *Option;\r | |
628 | UINT16 DataLen;\r | |
629 | UINT16 OpCode;\r | |
630 | \r | |
631 | Option = NULL;\r | |
632 | Cursor = Buf;\r | |
633 | \r | |
634 | while (Cursor < Buf + SeekLen) {\r | |
635 | OpCode = ReadUnaligned16 ((UINT16 *) Cursor);\r | |
636 | if (OpCode == HTONS (OptType)) {\r | |
637 | Option = Cursor;\r | |
638 | break;\r | |
639 | }\r | |
640 | DataLen = NTOHS (ReadUnaligned16 ((UINT16 *) (Cursor + 2)));\r | |
641 | Cursor += (DataLen + 4);\r | |
642 | }\r | |
643 | \r | |
644 | return Option;\r | |
645 | }\r | |
646 | \r | |
647 | \r | |
648 | /**\r | |
649 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
650 | \r | |
651 | @param[in] Private The pointer to PxeBc private data.\r | |
652 | @param[in] Index PxeBc option boot item type.\r | |
653 | \r | |
654 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
655 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
656 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
657 | @retval Others Failed to discover the boot file.\r | |
658 | \r | |
659 | **/\r | |
660 | EFI_STATUS\r | |
661 | PxeBcRequestBootService (\r | |
662 | IN PXEBC_PRIVATE_DATA *Private,\r | |
663 | IN UINT32 Index\r | |
664 | )\r | |
665 | {\r | |
666 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
667 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
129b8b09 | 668 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r |
669 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
670 | UINTN DiscoverLen;\r | |
671 | EFI_DHCP6_PACKET *Request;\r | |
672 | UINTN RequestLen;\r | |
673 | EFI_DHCP6_PACKET *Reply;\r | |
674 | UINT8 *RequestOpt;\r | |
675 | UINT8 *DiscoverOpt;\r | |
676 | UINTN ReadSize;\r | |
677 | UINT16 OpFlags;\r | |
678 | UINT16 OpCode;\r | |
679 | UINT16 OpLen;\r | |
680 | EFI_STATUS Status;\r | |
681 | EFI_DHCP6_PACKET *ProxyOffer;\r | |
682 | UINT8 *Option;\r | |
683 | \r | |
684 | PxeBc = &Private->PxeBc;\r | |
129b8b09 | 685 | Request = Private->Dhcp6Request;\r |
686 | ProxyOffer = &Private->OfferBuffer[Index].Dhcp6.Packet.Offer;\r | |
687 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
688 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
689 | OpFlags = 0;\r | |
690 | \r | |
691 | if (Request == NULL) {\r | |
692 | return EFI_DEVICE_ERROR;\r | |
693 | }\r | |
694 | \r | |
695 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
696 | if (Discover == NULL) {\r | |
697 | return EFI_OUT_OF_RESOURCES;\r | |
698 | }\r | |
699 | \r | |
700 | //\r | |
701 | // Build the request packet by the cached request packet before.\r | |
702 | //\r | |
703 | Discover->TransactionId = ProxyOffer->Dhcp6.Header.TransactionId;\r | |
704 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r | |
705 | RequestOpt = Request->Dhcp6.Option;\r | |
706 | DiscoverOpt = Discover->DhcpOptions;\r | |
707 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
708 | RequestLen = DiscoverLen;\r | |
709 | \r | |
710 | //\r | |
711 | // Find Server ID Option from ProxyOffer.\r | |
712 | //\r | |
713 | Option = PxeBcDhcp6SeekOption (\r | |
714 | ProxyOffer->Dhcp6.Option,\r | |
715 | ProxyOffer->Length - 4,\r | |
716 | PXEBC_DHCP6_OPT_SERVER_ID\r | |
717 | );\r | |
718 | if (Option == NULL) {\r | |
719 | return EFI_NOT_FOUND;\r | |
720 | }\r | |
721 | \r | |
722 | //\r | |
723 | // Add Server ID Option.\r | |
724 | //\r | |
725 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) Option)->OpLen);\r | |
726 | CopyMem (DiscoverOpt, Option, OpLen + 4);\r | |
727 | DiscoverOpt += (OpLen + 4);\r | |
728 | DiscoverLen += (OpLen + 4);\r | |
729 | \r | |
730 | while (RequestLen < Request->Length) {\r | |
731 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
732 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
733 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
734 | OpCode != EFI_DHCP6_IA_TYPE_TA &&\r | |
735 | OpCode != PXEBC_DHCP6_OPT_SERVER_ID\r | |
736 | ) {\r | |
737 | //\r | |
738 | // Copy all the options except IA option and Server ID\r | |
739 | //\r | |
740 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
741 | DiscoverOpt += (OpLen + 4);\r | |
742 | DiscoverLen += (OpLen + 4);\r | |
743 | }\r | |
744 | RequestOpt += (OpLen + 4);\r | |
745 | RequestLen += (OpLen + 4);\r | |
746 | }\r | |
747 | \r | |
748 | //\r | |
749 | // Update Elapsed option in the package \r | |
750 | //\r | |
751 | Option = PxeBcDhcp6SeekOption (\r | |
752 | Discover->DhcpOptions,\r | |
753 | (UINT32)(RequestLen - 4),\r | |
754 | PXEBC_DHCP6_OPT_ELAPSED_TIME\r | |
755 | );\r | |
756 | if (Option != NULL) {\r | |
757 | CalcElapsedTime (Private);\r | |
758 | WriteUnaligned16 ((UINT16*)(Option + 4), HTONS((UINT16) Private->ElapsedTime));\r | |
759 | } \r | |
760 | \r | |
761 | Status = PxeBc->UdpWrite (\r | |
762 | PxeBc,\r | |
763 | OpFlags,\r | |
764 | &Private->ServerIp,\r | |
765 | &DestPort,\r | |
766 | NULL,\r | |
767 | &Private->StationIp,\r | |
768 | &SrcPort,\r | |
769 | NULL,\r | |
770 | NULL,\r | |
771 | &DiscoverLen,\r | |
772 | (VOID *) Discover\r | |
773 | );\r | |
774 | \r | |
775 | if (EFI_ERROR (Status)) {\r | |
776 | return Status;\r | |
777 | }\r | |
778 | \r | |
779 | //\r | |
780 | // Cache the right PXE reply packet here, set valid flag later.\r | |
781 | // Especially for PXE discover packet, store it into mode data here.\r | |
782 | //\r | |
783 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
784 | ReadSize = (UINTN) Reply->Size;\r | |
785 | \r | |
786 | //\r | |
787 | // Start Udp6Read instance\r | |
788 | //\r | |
789 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
790 | if (EFI_ERROR (Status)) {\r | |
791 | return Status;\r | |
792 | }\r | |
793 | \r | |
794 | Status = PxeBc->UdpRead (\r | |
795 | PxeBc,\r | |
903d1fa9 FS |
796 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
797 | NULL,\r | |
129b8b09 | 798 | &SrcPort,\r |
799 | &Private->ServerIp,\r | |
800 | &DestPort,\r | |
801 | NULL,\r | |
802 | NULL,\r | |
803 | &ReadSize,\r | |
804 | (VOID *) &Reply->Dhcp6\r | |
805 | );\r | |
806 | //\r | |
807 | // Stop Udp6Read instance\r | |
808 | //\r | |
809 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
810 | \r | |
811 | if (EFI_ERROR (Status)) {\r | |
812 | return Status;\r | |
813 | }\r | |
814 | \r | |
815 | //\r | |
816 | // Update length\r | |
817 | //\r | |
818 | Reply->Length = (UINT32) ReadSize;\r | |
819 | \r | |
820 | return EFI_SUCCESS;\r | |
821 | }\r | |
822 | \r | |
a3bcde70 HT |
823 | \r |
824 | /**\r | |
825 | Retry to request bootfile name by the BINL offer.\r | |
826 | \r | |
827 | @param[in] Private The pointer to PxeBc private data.\r | |
828 | @param[in] Index The received order of offer packets.\r | |
829 | \r | |
830 | @retval EFI_SUCCESS Successfully retried a request for the bootfile name.\r | |
831 | @retval EFI_DEVICE_ERROR Failed to retry the bootfile name.\r | |
832 | \r | |
833 | **/\r | |
834 | EFI_STATUS\r | |
835 | PxeBcRetryDhcp6Binl (\r | |
836 | IN PXEBC_PRIVATE_DATA *Private,\r | |
837 | IN UINT32 Index\r | |
838 | )\r | |
839 | {\r | |
840 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
841 | PXEBC_DHCP6_PACKET_CACHE *Offer;\r | |
842 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
a3bcde70 HT |
843 | EFI_STATUS Status;\r |
844 | \r | |
845 | ASSERT (Index < PXEBC_OFFER_MAX_NUM);\r | |
846 | ASSERT (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeDhcpBinl ||\r | |
847 | Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl);\r | |
848 | \r | |
849 | Mode = Private->PxeBc.Mode;\r | |
850 | Private->IsDoDiscover = FALSE;\r | |
851 | Offer = &Private->OfferBuffer[Index].Dhcp6;\r | |
d40002ba | 852 | if (Offer->OfferType == PxeOfferTypeDhcpBinl) {\r |
853 | //\r | |
854 | // There is no BootFileUrl option in dhcp6 offer, so use servers multi-cast address instead.\r | |
855 | //\r | |
856 | CopyMem (\r | |
857 | &Private->ServerIp.v6,\r | |
858 | &mAllDhcpRelayAndServersAddress,\r | |
859 | sizeof (EFI_IPv6_ADDRESS)\r | |
860 | );\r | |
861 | } else {\r | |
862 | ASSERT (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
863 | //\r | |
864 | // Parse out the next server address from the last offer, and store it\r | |
865 | //\r | |
866 | Status = PxeBcExtractBootFileUrl (\r | |
867 | &Private->BootFileName,\r | |
868 | &Private->ServerIp.v6,\r | |
869 | (CHAR8 *) (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->Data),\r | |
870 | NTOHS (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->OpLen)\r | |
871 | );\r | |
872 | if (EFI_ERROR (Status)) {\r | |
873 | return Status;\r | |
874 | }\r | |
a3bcde70 HT |
875 | }\r |
876 | \r | |
877 | //\r | |
878 | // Retry Dhcp6Binl again for the bootfile, and the reply cached into Private->ProxyOffer.\r | |
879 | //\r | |
129b8b09 | 880 | Status = PxeBcRequestBootService (Private, Index);\r |
881 | \r | |
a3bcde70 HT |
882 | if (EFI_ERROR (Status)) {\r |
883 | return Status;\r | |
884 | }\r | |
885 | \r | |
886 | Cache6 = &Private->ProxyOffer.Dhcp6;\r | |
887 | Status = PxeBcParseDhcp6Packet (Cache6);\r | |
888 | if (EFI_ERROR (Status)) {\r | |
889 | return Status;\r | |
890 | }\r | |
891 | \r | |
892 | if (Cache6->OfferType != PxeOfferTypeProxyPxe10 &&\r | |
893 | Cache6->OfferType != PxeOfferTypeProxyWfm11a &&\r | |
894 | Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
895 | //\r | |
896 | // This BINL ack doesn't have discovery option set or multicast option set\r | |
897 | // or bootfile name specified.\r | |
898 | //\r | |
899 | return EFI_DEVICE_ERROR;\r | |
900 | }\r | |
901 | \r | |
902 | Mode->ProxyOfferReceived = TRUE;\r | |
903 | CopyMem (\r | |
904 | &Mode->ProxyOffer.Dhcpv6,\r | |
905 | &Cache6->Packet.Offer.Dhcp6,\r | |
906 | Cache6->Packet.Offer.Length\r | |
907 | );\r | |
908 | \r | |
909 | return EFI_SUCCESS;\r | |
910 | }\r | |
911 | \r | |
912 | \r | |
913 | /**\r | |
914 | Cache all the received DHCPv6 offers, and set OfferIndex and OfferCount.\r | |
915 | \r | |
916 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
917 | @param[in] RcvdOffer The pointer to the received offer packet.\r | |
918 | \r | |
919 | **/\r | |
920 | VOID\r | |
921 | PxeBcCacheDhcp6Offer (\r | |
922 | IN PXEBC_PRIVATE_DATA *Private,\r | |
923 | IN EFI_DHCP6_PACKET *RcvdOffer\r | |
924 | )\r | |
925 | {\r | |
926 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
927 | EFI_DHCP6_PACKET *Offer;\r | |
928 | PXEBC_OFFER_TYPE OfferType;\r | |
929 | \r | |
930 | Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;\r | |
931 | Offer = &Cache6->Packet.Offer;\r | |
932 | \r | |
933 | //\r | |
934 | // Cache the content of DHCPv6 packet firstly.\r | |
935 | //\r | |
936 | PxeBcCacheDhcp6Packet (Offer, RcvdOffer);\r | |
937 | \r | |
938 | //\r | |
939 | // Validate the DHCPv6 packet, and parse the options and offer type.\r | |
940 | //\r | |
941 | if (EFI_ERROR (PxeBcParseDhcp6Packet (Cache6))) {\r | |
942 | return ;\r | |
943 | }\r | |
944 | \r | |
945 | //\r | |
946 | // Determine whether cache the current offer by type, and record OfferIndex and OfferCount.\r | |
947 | //\r | |
948 | OfferType = Cache6->OfferType;\r | |
949 | ASSERT (OfferType < PxeOfferTypeMax);\r | |
950 | ASSERT (Private->OfferCount[OfferType] < PXEBC_OFFER_MAX_NUM);\r | |
951 | \r | |
952 | if (IS_PROXY_OFFER (OfferType)) {\r | |
953 | //\r | |
954 | // It's a proxy offer without yiaddr, including PXE10, WFM11a or BINL offer.\r | |
955 | //\r | |
956 | Private->IsProxyRecved = TRUE;\r | |
957 | \r | |
958 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
959 | //\r | |
960 | // Cache all proxy BINL offers.\r | |
961 | //\r | |
962 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
963 | Private->OfferCount[OfferType]++;\r | |
964 | } else if (Private->OfferCount[OfferType] > 0) {\r | |
965 | //\r | |
966 | // Only cache the first PXE10/WFM11a offer, and discard the others.\r | |
967 | //\r | |
968 | Private->OfferIndex[OfferType][0] = Private->OfferNum;\r | |
969 | Private->OfferCount[OfferType] = 1;\r | |
970 | } else {\r | |
971 | return;\r | |
972 | }\r | |
973 | } else {\r | |
974 | //\r | |
975 | // It's a DHCPv6 offer with yiaddr, and cache them all.\r | |
976 | //\r | |
977 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
978 | Private->OfferCount[OfferType]++;\r | |
979 | }\r | |
980 | \r | |
981 | Private->OfferNum++;\r | |
982 | }\r | |
983 | \r | |
984 | \r | |
985 | /**\r | |
986 | Select an DHCPv6 offer, and record SelectIndex and SelectProxyType.\r | |
987 | \r | |
988 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
989 | \r | |
990 | **/\r | |
991 | VOID\r | |
992 | PxeBcSelectDhcp6Offer (\r | |
993 | IN PXEBC_PRIVATE_DATA *Private\r | |
994 | )\r | |
995 | {\r | |
996 | UINT32 Index;\r | |
997 | UINT32 OfferIndex;\r | |
998 | PXEBC_OFFER_TYPE OfferType;\r | |
999 | \r | |
1000 | Private->SelectIndex = 0;\r | |
1001 | \r | |
1002 | if (Private->IsOfferSorted) {\r | |
1003 | //\r | |
1004 | // Select offer by default policy.\r | |
1005 | //\r | |
1006 | if (Private->OfferCount[PxeOfferTypeDhcpPxe10] > 0) {\r | |
1007 | //\r | |
1008 | // 1. DhcpPxe10 offer\r | |
1009 | //\r | |
1010 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpPxe10][0] + 1;\r | |
1011 | \r | |
1012 | } else if (Private->OfferCount[PxeOfferTypeDhcpWfm11a] > 0) {\r | |
1013 | //\r | |
1014 | // 2. DhcpWfm11a offer\r | |
1015 | //\r | |
1016 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpWfm11a][0] + 1;\r | |
1017 | \r | |
1018 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1019 | Private->OfferCount[PxeOfferTypeProxyPxe10] > 0) {\r | |
1020 | //\r | |
1021 | // 3. DhcpOnly offer and ProxyPxe10 offer.\r | |
1022 | //\r | |
1023 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1024 | Private->SelectProxyType = PxeOfferTypeProxyPxe10;\r | |
1025 | \r | |
1026 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1027 | Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0) {\r | |
1028 | //\r | |
1029 | // 4. DhcpOnly offer and ProxyWfm11a offer.\r | |
1030 | //\r | |
1031 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1032 | Private->SelectProxyType = PxeOfferTypeProxyWfm11a;\r | |
1033 | \r | |
1034 | } else if (Private->OfferCount[PxeOfferTypeDhcpBinl] > 0) {\r | |
1035 | //\r | |
1036 | // 5. DhcpBinl offer.\r | |
1037 | //\r | |
1038 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpBinl][0] + 1;\r | |
1039 | \r | |
1040 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1041 | Private->OfferCount[PxeOfferTypeProxyBinl] > 0) {\r | |
1042 | //\r | |
1043 | // 6. DhcpOnly offer and ProxyBinl offer.\r | |
1044 | //\r | |
1045 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1046 | Private->SelectProxyType = PxeOfferTypeProxyBinl;\r | |
1047 | \r | |
1048 | } else {\r | |
1049 | //\r | |
1050 | // 7. DhcpOnly offer with bootfilename.\r | |
1051 | //\r | |
1052 | for (Index = 0; Index < Private->OfferCount[PxeOfferTypeDhcpOnly]; Index++) {\r | |
1053 | OfferIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][Index];\r | |
1054 | if (Private->OfferBuffer[OfferIndex].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL) {\r | |
1055 | Private->SelectIndex = OfferIndex + 1;\r | |
1056 | break;\r | |
1057 | }\r | |
1058 | }\r | |
1059 | }\r | |
1060 | } else {\r | |
1061 | //\r | |
1062 | // Select offer by received order.\r | |
1063 | //\r | |
1064 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1065 | \r | |
1066 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1067 | \r | |
1068 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1069 | //\r | |
1070 | // Skip proxy offers\r | |
1071 | //\r | |
1072 | continue;\r | |
1073 | }\r | |
1074 | \r | |
1075 | if (!Private->IsProxyRecved &&\r | |
1076 | OfferType == PxeOfferTypeDhcpOnly &&\r | |
1077 | Private->OfferBuffer[Index].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
1078 | //\r | |
1079 | // Skip if DhcpOnly offer without any other proxy offers or bootfilename.\r | |
1080 | //\r | |
1081 | continue;\r | |
1082 | }\r | |
1083 | \r | |
1084 | Private->SelectIndex = Index + 1;\r | |
1085 | break;\r | |
1086 | }\r | |
1087 | }\r | |
1088 | }\r | |
1089 | \r | |
1090 | \r | |
1091 | /**\r | |
1092 | Handle the DHCPv6 offer packet.\r | |
1093 | \r | |
1094 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1095 | \r | |
1096 | @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.\r | |
1097 | @retval EFI_NO_RESPONSE No response to the following request packet.\r | |
1098 | \r | |
1099 | **/\r | |
1100 | EFI_STATUS\r | |
1101 | PxeBcHandleDhcp6Offer (\r | |
1102 | IN PXEBC_PRIVATE_DATA *Private\r | |
1103 | )\r | |
1104 | {\r | |
1105 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1106 | EFI_STATUS Status;\r | |
1107 | PXEBC_OFFER_TYPE OfferType;\r | |
1108 | UINT32 ProxyIndex;\r | |
1109 | UINT32 SelectIndex;\r | |
1110 | UINT32 Index;\r | |
1111 | \r | |
1112 | ASSERT (Private->SelectIndex > 0);\r | |
1113 | SelectIndex = (UINT32) (Private->SelectIndex - 1);\r | |
1114 | ASSERT (SelectIndex < PXEBC_OFFER_MAX_NUM);\r | |
1115 | Cache6 = &Private->OfferBuffer[SelectIndex].Dhcp6;\r | |
1116 | Status = EFI_SUCCESS;\r | |
1117 | \r | |
1118 | if (Cache6->OfferType == PxeOfferTypeDhcpBinl) {\r | |
1119 | //\r | |
1120 | // DhcpBinl offer is selected, so need try to request bootfilename by this offer.\r | |
1121 | //\r | |
1122 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, SelectIndex))) {\r | |
1123 | Status = EFI_NO_RESPONSE;\r | |
1124 | }\r | |
1125 | } else if (Cache6->OfferType == PxeOfferTypeDhcpOnly) {\r | |
1126 | \r | |
1127 | if (Private->IsProxyRecved) {\r | |
1128 | //\r | |
1129 | // DhcpOnly offer is selected, so need try to request bootfilename.\r | |
1130 | //\r | |
1131 | ProxyIndex = 0;\r | |
1132 | if (Private->IsOfferSorted) {\r | |
1133 | //\r | |
1134 | // The proxy offer should be determined if select by default policy.\r | |
1135 | // IsOfferSorted means all offers are labeled by OfferIndex.\r | |
1136 | //\r | |
1137 | ASSERT (Private->OfferCount[Private->SelectProxyType] > 0);\r | |
1138 | \r | |
1139 | if (Private->SelectProxyType == PxeOfferTypeProxyBinl) {\r | |
1140 | //\r | |
1141 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1142 | //\r | |
1143 | for (Index = 0; Index < Private->OfferCount[Private->SelectProxyType]; Index++) {\r | |
1144 | \r | |
1145 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][Index];\r | |
1146 | if (!EFI_ERROR (PxeBcRetryDhcp6Binl (Private, ProxyIndex))) {\r | |
1147 | break;\r | |
1148 | }\r | |
1149 | }\r | |
1150 | if (Index == Private->OfferCount[Private->SelectProxyType]) {\r | |
1151 | Status = EFI_NO_RESPONSE;\r | |
1152 | }\r | |
1153 | } else {\r | |
1154 | //\r | |
1155 | // For other proxy offers (pxe10 or wfm11a), only one is buffered.\r | |
1156 | //\r | |
1157 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][0];\r | |
1158 | }\r | |
1159 | } else {\r | |
1160 | //\r | |
1161 | // The proxy offer should not be determined if select by received order.\r | |
1162 | //\r | |
1163 | Status = EFI_NO_RESPONSE;\r | |
1164 | \r | |
1165 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1166 | \r | |
1167 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1168 | \r | |
1169 | if (!IS_PROXY_OFFER (OfferType)) {\r | |
1170 | //\r | |
1171 | // Skip non proxy dhcp offers.\r | |
1172 | //\r | |
1173 | continue;\r | |
1174 | }\r | |
1175 | \r | |
1176 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1177 | //\r | |
1178 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1179 | //\r | |
1180 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, Index))) {\r | |
1181 | continue;\r | |
1182 | }\r | |
1183 | }\r | |
1184 | \r | |
1185 | Private->SelectProxyType = OfferType;\r | |
1186 | ProxyIndex = Index;\r | |
1187 | Status = EFI_SUCCESS;\r | |
1188 | break;\r | |
1189 | }\r | |
1190 | }\r | |
1191 | \r | |
1192 | if (!EFI_ERROR (Status) && Private->SelectProxyType != PxeOfferTypeProxyBinl) {\r | |
1193 | //\r | |
1194 | // Success to try to request by a ProxyPxe10 or ProxyWfm11a offer, copy and parse it.\r | |
1195 | //\r | |
1196 | PxeBcCopyDhcp6Proxy (Private, ProxyIndex);\r | |
1197 | }\r | |
1198 | } else {\r | |
1199 | //\r | |
1200 | // Othewise, the bootfilename must be included in DhcpOnly offer.\r | |
1201 | //\r | |
1202 | ASSERT (Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1203 | }\r | |
1204 | }\r | |
1205 | \r | |
1206 | if (!EFI_ERROR (Status)) {\r | |
1207 | //\r | |
1208 | // All PXE boot information is ready by now.\r | |
1209 | //\r | |
1210 | PxeBcCopyDhcp6Ack (Private, &Private->DhcpAck.Dhcp6.Packet.Ack, TRUE);\r | |
1211 | Private->PxeBc.Mode->DhcpDiscoverValid = TRUE;\r | |
1212 | }\r | |
1213 | \r | |
1214 | return Status;\r | |
1215 | }\r | |
1216 | \r | |
1217 | \r | |
1218 | /**\r | |
1219 | Unregister the address by Ip6Config protocol.\r | |
1220 | \r | |
1221 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1222 | \r | |
1223 | **/\r | |
1224 | VOID\r | |
1225 | PxeBcUnregisterIp6Address (\r | |
1226 | IN PXEBC_PRIVATE_DATA *Private\r | |
1227 | )\r | |
1228 | {\r | |
1229 | if (Private->Ip6Policy != PXEBC_IP6_POLICY_MAX) {\r | |
1230 | //\r | |
1231 | // PXE driver change the policy of IP6 driver, it's a chance to recover.\r | |
1232 | // Keep the point and there is no enough requirements to do recovery.\r | |
1233 | //\r | |
1234 | }\r | |
1235 | }\r | |
1236 | \r | |
ae97201c FS |
1237 | /**\r |
1238 | Check whether IP driver could route the message which will be sent to ServerIp address.\r | |
1239 | \r | |
1240 | This function will check the IP6 route table every 1 seconds until specified timeout is expired, if a valid\r | |
1241 | route is found in IP6 route table, the address will be filed in GatewayAddr and return.\r | |
1242 | \r | |
1243 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1244 | @param[in] TimeOutInSecond Timeout value in seconds.\r | |
1245 | @param[out] GatewayAddr Pointer to store the gateway IP address.\r | |
1246 | \r | |
1247 | @retval EFI_SUCCESS Found a valid gateway address successfully.\r | |
1248 | @retval EFI_TIMEOUT The operation is time out.\r | |
1249 | @retval Other Unexpect error happened.\r | |
1250 | \r | |
1251 | **/\r | |
1252 | EFI_STATUS\r | |
1253 | PxeBcCheckRouteTable (\r | |
1254 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1255 | IN UINTN TimeOutInSecond,\r | |
1256 | OUT EFI_IPv6_ADDRESS *GatewayAddr\r | |
1257 | )\r | |
1258 | {\r | |
1259 | EFI_STATUS Status;\r | |
1260 | EFI_IP6_PROTOCOL *Ip6;\r | |
1261 | EFI_IP6_MODE_DATA Ip6ModeData;\r | |
1262 | UINTN Index;\r | |
1263 | EFI_EVENT TimeOutEvt;\r | |
1264 | UINTN RetryCount;\r | |
1265 | BOOLEAN GatewayIsFound;\r | |
1266 | \r | |
1267 | ASSERT (GatewayAddr != NULL);\r | |
1268 | ASSERT (Private != NULL);\r | |
1269 | \r | |
1270 | Ip6 = Private->Ip6;\r | |
1271 | GatewayIsFound = FALSE;\r | |
1272 | RetryCount = 0;\r | |
1273 | TimeOutEvt = NULL;\r | |
1274 | ZeroMem (GatewayAddr, sizeof (EFI_IPv6_ADDRESS));\r | |
1275 | \r | |
1276 | while (TRUE) {\r | |
1277 | Status = Ip6->GetModeData (Ip6, &Ip6ModeData, NULL, NULL);\r | |
1278 | if (EFI_ERROR (Status)) {\r | |
1279 | goto ON_EXIT;\r | |
1280 | }\r | |
1281 | \r | |
1282 | //\r | |
07f986f1 | 1283 | // Find out the gateway address which can route the message which send to ServerIp.\r |
ae97201c FS |
1284 | //\r |
1285 | for (Index = 0; Index < Ip6ModeData.RouteCount; Index++) {\r | |
1286 | if (NetIp6IsNetEqual (&Private->ServerIp.v6, &Ip6ModeData.RouteTable[Index].Destination, Ip6ModeData.RouteTable[Index].PrefixLength)) {\r | |
1287 | IP6_COPY_ADDRESS (GatewayAddr, &Ip6ModeData.RouteTable[Index].Gateway);\r | |
1288 | GatewayIsFound = TRUE;\r | |
1289 | break;\r | |
1290 | }\r | |
1291 | }\r | |
1292 | \r | |
1293 | if (Ip6ModeData.AddressList != NULL) {\r | |
1294 | FreePool (Ip6ModeData.AddressList);\r | |
1295 | }\r | |
1296 | if (Ip6ModeData.GroupTable != NULL) {\r | |
1297 | FreePool (Ip6ModeData.GroupTable);\r | |
1298 | }\r | |
1299 | if (Ip6ModeData.RouteTable != NULL) {\r | |
1300 | FreePool (Ip6ModeData.RouteTable);\r | |
1301 | }\r | |
1302 | if (Ip6ModeData.NeighborCache != NULL) {\r | |
1303 | FreePool (Ip6ModeData.NeighborCache);\r | |
1304 | }\r | |
1305 | if (Ip6ModeData.PrefixTable != NULL) {\r | |
1306 | FreePool (Ip6ModeData.PrefixTable);\r | |
1307 | }\r | |
1308 | if (Ip6ModeData.IcmpTypeList != NULL) {\r | |
1309 | FreePool (Ip6ModeData.IcmpTypeList);\r | |
1310 | }\r | |
1311 | \r | |
1312 | if (GatewayIsFound || RetryCount == TimeOutInSecond) {\r | |
1313 | break;\r | |
1314 | }\r | |
1315 | \r | |
1316 | RetryCount++;\r | |
1317 | \r | |
1318 | //\r | |
1319 | // Delay 1 second then recheck it again.\r | |
1320 | //\r | |
1321 | if (TimeOutEvt == NULL) {\r | |
1322 | Status = gBS->CreateEvent (\r | |
1323 | EVT_TIMER,\r | |
1324 | TPL_CALLBACK,\r | |
1325 | NULL,\r | |
1326 | NULL,\r | |
1327 | &TimeOutEvt\r | |
1328 | );\r | |
1329 | if (EFI_ERROR (Status)) {\r | |
1330 | goto ON_EXIT;\r | |
1331 | }\r | |
1332 | }\r | |
1333 | \r | |
1334 | Status = gBS->SetTimer (TimeOutEvt, TimerRelative, TICKS_PER_SECOND);\r | |
1335 | if (EFI_ERROR (Status)) {\r | |
1336 | goto ON_EXIT;\r | |
1337 | }\r | |
1338 | while (EFI_ERROR (gBS->CheckEvent (TimeOutEvt))) {\r | |
1339 | Ip6->Poll (Ip6);\r | |
1340 | }\r | |
1341 | }\r | |
1342 | \r | |
1343 | ON_EXIT:\r | |
1344 | if (TimeOutEvt != NULL) {\r | |
1345 | gBS->CloseEvent (TimeOutEvt);\r | |
1346 | }\r | |
1347 | \r | |
1348 | if (GatewayIsFound) {\r | |
1349 | Status = EFI_SUCCESS;\r | |
1350 | } else if (RetryCount == TimeOutInSecond) {\r | |
1351 | Status = EFI_TIMEOUT;\r | |
1352 | }\r | |
1353 | \r | |
1354 | return Status; \r | |
1355 | }\r | |
a3bcde70 HT |
1356 | \r |
1357 | /**\r | |
ae97201c | 1358 | Register the ready station address and gateway by Ip6Config protocol.\r |
a3bcde70 HT |
1359 | \r |
1360 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1361 | @param[in] Address The pointer to the ready address.\r | |
1362 | \r | |
1363 | @retval EFI_SUCCESS Registered the address succesfully.\r | |
1364 | @retval Others Failed to register the address.\r | |
1365 | \r | |
1366 | **/\r | |
1367 | EFI_STATUS\r | |
1368 | PxeBcRegisterIp6Address (\r | |
1369 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1370 | IN EFI_IPv6_ADDRESS *Address\r | |
1371 | )\r | |
1372 | {\r | |
1373 | EFI_IP6_PROTOCOL *Ip6;\r | |
1374 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1375 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1376 | EFI_IP6_CONFIG_MANUAL_ADDRESS CfgAddr;\r | |
ae97201c | 1377 | EFI_IPv6_ADDRESS GatewayAddr;\r |
a3bcde70 | 1378 | UINTN DataSize;\r |
a3bcde70 HT |
1379 | EFI_EVENT MappedEvt;\r |
1380 | EFI_STATUS Status;\r | |
07f986f1 | 1381 | BOOLEAN NoGateway;\r |
bf9f7cea FS |
1382 | EFI_IPv6_ADDRESS *Ip6Addr;\r |
1383 | UINTN Index;\r | |
a3bcde70 HT |
1384 | \r |
1385 | Status = EFI_SUCCESS;\r | |
a3bcde70 | 1386 | MappedEvt = NULL;\r |
bf9f7cea | 1387 | Ip6Addr = NULL;\r |
a3bcde70 HT |
1388 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r |
1389 | Ip6Cfg = Private->Ip6Cfg;\r | |
1390 | Ip6 = Private->Ip6;\r | |
07f986f1 | 1391 | NoGateway = FALSE;\r |
a3bcde70 HT |
1392 | \r |
1393 | ZeroMem (&CfgAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));\r | |
1394 | CopyMem (&CfgAddr.Address, Address, sizeof (EFI_IPv6_ADDRESS));\r | |
1395 | \r | |
ae97201c FS |
1396 | Status = Ip6->Configure (Ip6, &Private->Ip6CfgData);\r |
1397 | if (EFI_ERROR (Status)) {\r | |
1398 | goto ON_EXIT;\r | |
1399 | }\r | |
1400 | \r | |
a3bcde70 | 1401 | //\r |
ae97201c | 1402 | // Retrieve the gateway address from IP6 route table.\r |
a3bcde70 | 1403 | //\r |
ae97201c | 1404 | Status = PxeBcCheckRouteTable (Private, PXEBC_IP6_ROUTE_TABLE_TIMEOUT, &GatewayAddr);\r |
a3bcde70 | 1405 | if (EFI_ERROR (Status)) {\r |
07f986f1 | 1406 | NoGateway = TRUE;\r |
a3bcde70 | 1407 | }\r |
ae97201c | 1408 | \r |
a3bcde70 HT |
1409 | //\r |
1410 | // There is no channel between IP6 and PXE driver about address setting,\r | |
1411 | // so it has to set the new address by Ip6ConfigProtocol manually.\r | |
1412 | //\r | |
1413 | Policy = Ip6ConfigPolicyManual;\r | |
1414 | Status = Ip6Cfg->SetData (\r | |
1415 | Ip6Cfg,\r | |
1416 | Ip6ConfigDataTypePolicy,\r | |
1417 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1418 | &Policy\r | |
1419 | );\r | |
1420 | if (EFI_ERROR (Status)) {\r | |
1421 | //\r | |
1422 | // There is no need to recover later.\r | |
1423 | //\r | |
1424 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1425 | goto ON_EXIT;\r | |
1426 | }\r | |
1427 | \r | |
a3bcde70 HT |
1428 | //\r |
1429 | // Create a notify event to set address flag when DAD if IP6 driver succeeded.\r | |
1430 | //\r | |
1431 | Status = gBS->CreateEvent (\r | |
1432 | EVT_NOTIFY_SIGNAL,\r | |
1433 | TPL_NOTIFY,\r | |
1434 | PxeBcCommonNotify,\r | |
1435 | &Private->IsAddressOk,\r | |
1436 | &MappedEvt\r | |
1437 | );\r | |
1438 | if (EFI_ERROR (Status)) {\r | |
1439 | goto ON_EXIT;\r | |
1440 | }\r | |
1441 | \r | |
bf9f7cea | 1442 | Private->IsAddressOk = FALSE;\r |
a3bcde70 HT |
1443 | Status = Ip6Cfg->RegisterDataNotify (\r |
1444 | Ip6Cfg,\r | |
1445 | Ip6ConfigDataTypeManualAddress,\r | |
1446 | MappedEvt\r | |
1447 | );\r | |
1448 | if (EFI_ERROR(Status)) {\r | |
1449 | goto ON_EXIT;\r | |
1450 | }\r | |
1451 | \r | |
1452 | Status = Ip6Cfg->SetData (\r | |
1453 | Ip6Cfg,\r | |
1454 | Ip6ConfigDataTypeManualAddress,\r | |
1455 | sizeof(EFI_IP6_CONFIG_MANUAL_ADDRESS),\r | |
1456 | &CfgAddr\r | |
1457 | );\r | |
1458 | if (EFI_ERROR(Status) && Status != EFI_NOT_READY) {\r | |
1459 | goto ON_EXIT;\r | |
bf9f7cea FS |
1460 | } else if (Status == EFI_NOT_READY) {\r |
1461 | //\r | |
1462 | // Poll the network until the asynchronous process is finished.\r | |
1463 | //\r | |
1464 | while (!Private->IsAddressOk) {\r | |
1465 | Ip6->Poll (Ip6);\r | |
1466 | }\r | |
1467 | //\r | |
1468 | // Check whether the IP6 address setting is successed.\r | |
1469 | //\r | |
1470 | DataSize = 0;\r | |
1471 | Status = Ip6Cfg->GetData (\r | |
1472 | Ip6Cfg,\r | |
1473 | Ip6ConfigDataTypeManualAddress,\r | |
1474 | &DataSize,\r | |
1475 | NULL\r | |
1476 | );\r | |
1477 | if (Status != EFI_BUFFER_TOO_SMALL || DataSize == 0) {\r | |
1478 | Status = EFI_DEVICE_ERROR;\r | |
1479 | goto ON_EXIT;\r | |
1480 | }\r | |
a3bcde70 | 1481 | \r |
bf9f7cea FS |
1482 | Ip6Addr = AllocatePool (DataSize);\r |
1483 | if (Ip6Addr == NULL) {\r | |
1484 | return EFI_OUT_OF_RESOURCES;\r | |
1485 | }\r | |
1486 | Status = Ip6Cfg->GetData (\r | |
1487 | Ip6Cfg,\r | |
1488 | Ip6ConfigDataTypeManualAddress,\r | |
1489 | &DataSize,\r | |
1490 | (VOID*) Ip6Addr\r | |
1491 | );\r | |
1492 | if (EFI_ERROR (Status)) {\r | |
1493 | Status = EFI_DEVICE_ERROR;\r | |
1494 | goto ON_EXIT;\r | |
1495 | }\r | |
a3bcde70 | 1496 | \r |
bf9f7cea FS |
1497 | for (Index = 0; Index < DataSize / sizeof (EFI_IPv6_ADDRESS); Index++) {\r |
1498 | if (CompareMem (Ip6Addr + Index, Address, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
1499 | break;\r | |
1500 | }\r | |
1501 | }\r | |
1502 | if (Index == DataSize / sizeof (EFI_IPv6_ADDRESS)) {\r | |
1503 | Status = EFI_ABORTED;\r | |
1504 | goto ON_EXIT;\r | |
a3bcde70 HT |
1505 | }\r |
1506 | }\r | |
bf9f7cea | 1507 | \r |
ae97201c FS |
1508 | //\r |
1509 | // Set the default gateway address back if needed.\r | |
1510 | //\r | |
07f986f1 | 1511 | if (!NoGateway && !NetIp6IsUnspecifiedAddr (&GatewayAddr)) {\r |
ae97201c FS |
1512 | Status = Ip6Cfg->SetData (\r |
1513 | Ip6Cfg,\r | |
1514 | Ip6ConfigDataTypeGateway,\r | |
1515 | sizeof (EFI_IPv6_ADDRESS),\r | |
1516 | &GatewayAddr\r | |
1517 | );\r | |
1518 | if (EFI_ERROR (Status)) {\r | |
1519 | goto ON_EXIT;\r | |
1520 | }\r | |
1521 | }\r | |
1522 | \r | |
a3bcde70 HT |
1523 | ON_EXIT:\r |
1524 | if (MappedEvt != NULL) {\r | |
1525 | Ip6Cfg->UnregisterDataNotify (\r | |
1526 | Ip6Cfg,\r | |
1527 | Ip6ConfigDataTypeManualAddress,\r | |
1528 | MappedEvt\r | |
1529 | );\r | |
1530 | gBS->CloseEvent (MappedEvt);\r | |
1531 | }\r | |
bf9f7cea FS |
1532 | if (Ip6Addr != NULL) {\r |
1533 | FreePool (Ip6Addr);\r | |
a3bcde70 HT |
1534 | }\r |
1535 | return Status;\r | |
1536 | }\r | |
1537 | \r | |
ae97201c FS |
1538 | /**\r |
1539 | Set the IP6 policy to Automatic.\r | |
1540 | \r | |
1541 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1542 | \r | |
1543 | @retval EFI_SUCCESS Switch the IP policy succesfully.\r | |
1544 | @retval Others Unexpect error happened.\r | |
1545 | \r | |
1546 | **/\r | |
1547 | EFI_STATUS\r | |
1548 | PxeBcSetIp6Policy (\r | |
1549 | IN PXEBC_PRIVATE_DATA *Private\r | |
1550 | )\r | |
1551 | {\r | |
1552 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1553 | EFI_STATUS Status;\r | |
1554 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1555 | UINTN DataSize;\r | |
1556 | \r | |
1557 | Ip6Cfg = Private->Ip6Cfg;\r | |
1558 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r | |
1559 | \r | |
1560 | //\r | |
1561 | // Get and store the current policy of IP6 driver.\r | |
1562 | //\r | |
1563 | Status = Ip6Cfg->GetData (\r | |
1564 | Ip6Cfg,\r | |
1565 | Ip6ConfigDataTypePolicy,\r | |
1566 | &DataSize,\r | |
1567 | &Private->Ip6Policy\r | |
1568 | );\r | |
1569 | if (EFI_ERROR (Status)) {\r | |
1570 | return Status;\r | |
1571 | }\r | |
1572 | \r | |
1573 | if (Private->Ip6Policy == Ip6ConfigPolicyManual) {\r | |
1574 | Policy = Ip6ConfigPolicyAutomatic;\r | |
1575 | Status = Ip6Cfg->SetData (\r | |
1576 | Ip6Cfg,\r | |
1577 | Ip6ConfigDataTypePolicy,\r | |
1578 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1579 | &Policy\r | |
1580 | );\r | |
1581 | if (EFI_ERROR (Status)) {\r | |
1582 | //\r | |
1583 | // There is no need to recover later.\r | |
1584 | //\r | |
1585 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1586 | }\r | |
1587 | }\r | |
1588 | \r | |
1589 | return Status;\r | |
1590 | }\r | |
1591 | \r | |
1592 | /**\r | |
1593 | This function will register the station IP address and flush IP instance to start using the new IP address.\r | |
1594 | \r | |
1595 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1596 | \r | |
1597 | @retval EFI_SUCCESS The new IP address has been configured successfully.\r | |
1598 | @retval Others Failed to configure the address.\r | |
1599 | \r | |
1600 | **/\r | |
1601 | EFI_STATUS\r | |
1602 | PxeBcSetIp6Address (\r | |
1603 | IN PXEBC_PRIVATE_DATA *Private\r | |
1604 | )\r | |
1605 | {\r | |
1606 | EFI_STATUS Status;\r | |
1607 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
1608 | \r | |
1609 | Dhcp6 = Private->Dhcp6;\r | |
1610 | \r | |
1611 | CopyMem (&Private->StationIp.v6, &Private->TmpStationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1612 | CopyMem (&Private->PxeBc.Mode->StationIp.v6, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1613 | \r | |
1614 | Status = PxeBcRegisterIp6Address (Private, &Private->StationIp.v6);\r | |
1615 | if (EFI_ERROR (Status)) {\r | |
1616 | Dhcp6->Stop (Dhcp6);\r | |
1617 | return Status;\r | |
1618 | }\r | |
1619 | \r | |
1620 | Status = PxeBcFlushStationIp (Private, &Private->StationIp, NULL);\r | |
1621 | if (EFI_ERROR (Status)) {\r | |
1622 | PxeBcUnregisterIp6Address (Private);\r | |
1623 | Dhcp6->Stop (Dhcp6);\r | |
1624 | return Status;\r | |
1625 | }\r | |
1626 | \r | |
1627 | AsciiPrint ("\n Station IP address is ");\r | |
1628 | PxeBcShowIp6Addr (&Private->StationIp.v6);\r | |
1629 | \r | |
1630 | return EFI_SUCCESS;\r | |
1631 | }\r | |
a3bcde70 HT |
1632 | \r |
1633 | /**\r | |
1634 | EFI_DHCP6_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol driver\r | |
1635 | to intercept events that occurred in the configuration process.\r | |
1636 | \r | |
1637 | @param[in] This The pointer to the EFI DHCPv6 Protocol.\r | |
1638 | @param[in] Context The pointer to the context set by EFI_DHCP6_PROTOCOL.Configure().\r | |
1639 | @param[in] CurrentState The current operational state of the EFI DHCPv Protocol driver.\r | |
1640 | @param[in] Dhcp6Event The event that occurs in the current state, which usually means a\r | |
1641 | state transition.\r | |
1642 | @param[in] Packet The DHCPv6 packet that is going to be sent or was already received.\r | |
1643 | @param[out] NewPacket The packet that is used to replace the Packet above.\r | |
1644 | \r | |
1645 | @retval EFI_SUCCESS Told the EFI DHCPv6 Protocol driver to continue the DHCP process.\r | |
1646 | @retval EFI_NOT_READY Only used in the Dhcp6Selecting state. The EFI DHCPv6 Protocol\r | |
1647 | driver will continue to wait for more packets.\r | |
1648 | @retval EFI_ABORTED Told the EFI DHCPv6 Protocol driver to abort the current process.\r | |
1649 | \r | |
1650 | **/\r | |
1651 | EFI_STATUS\r | |
1652 | EFIAPI\r | |
1653 | PxeBcDhcp6CallBack (\r | |
1654 | IN EFI_DHCP6_PROTOCOL *This,\r | |
1655 | IN VOID *Context,\r | |
1656 | IN EFI_DHCP6_STATE CurrentState,\r | |
1657 | IN EFI_DHCP6_EVENT Dhcp6Event,\r | |
1658 | IN EFI_DHCP6_PACKET *Packet,\r | |
1659 | OUT EFI_DHCP6_PACKET **NewPacket OPTIONAL\r | |
1660 | )\r | |
1661 | {\r | |
1662 | PXEBC_PRIVATE_DATA *Private;\r | |
1663 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1664 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r | |
1665 | EFI_DHCP6_PACKET *SelectAd;\r | |
1666 | EFI_STATUS Status;\r | |
1667 | BOOLEAN Received;\r | |
1668 | \r | |
1669 | if ((Dhcp6Event != Dhcp6RcvdAdvertise) &&\r | |
1670 | (Dhcp6Event != Dhcp6SelectAdvertise) &&\r | |
1671 | (Dhcp6Event != Dhcp6SendSolicit) &&\r | |
1672 | (Dhcp6Event != Dhcp6SendRequest) &&\r | |
1673 | (Dhcp6Event != Dhcp6RcvdReply)) {\r | |
1674 | return EFI_SUCCESS;\r | |
1675 | }\r | |
1676 | \r | |
1677 | ASSERT (Packet != NULL);\r | |
1678 | \r | |
1679 | Private = (PXEBC_PRIVATE_DATA *) Context;\r | |
1680 | Mode = Private->PxeBc.Mode;\r | |
1681 | Callback = Private->PxeBcCallback;\r | |
1682 | \r | |
1683 | //\r | |
1684 | // Callback to user when any traffic ocurred if has.\r | |
1685 | //\r | |
1686 | if (Dhcp6Event != Dhcp6SelectAdvertise && Callback != NULL) {\r | |
1687 | Received = (BOOLEAN) (Dhcp6Event == Dhcp6RcvdAdvertise || Dhcp6Event == Dhcp6RcvdReply);\r | |
1688 | Status = Callback->Callback (\r | |
1689 | Callback,\r | |
1690 | Private->Function,\r | |
1691 | Received,\r | |
1692 | Packet->Length,\r | |
1693 | (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp6\r | |
1694 | );\r | |
1695 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r | |
1696 | return EFI_ABORTED;\r | |
1697 | }\r | |
1698 | }\r | |
1699 | \r | |
1700 | Status = EFI_SUCCESS;\r | |
1701 | \r | |
1702 | switch (Dhcp6Event) {\r | |
1703 | \r | |
1704 | case Dhcp6SendSolicit:\r | |
129b8b09 | 1705 | //\r |
1706 | // Record the first Solicate msg time\r | |
1707 | //\r | |
1708 | if (Private->SolicitTimes == 0) {\r | |
1709 | CalcElapsedTime (Private);\r | |
1710 | Private->SolicitTimes++;\r | |
1711 | }\r | |
a3bcde70 HT |
1712 | //\r |
1713 | // Cache the dhcp discover packet to mode data directly.\r | |
1714 | //\r | |
1715 | CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp6, Packet->Length);\r | |
1716 | break;\r | |
1717 | \r | |
1718 | case Dhcp6RcvdAdvertise:\r | |
1719 | Status = EFI_NOT_READY;\r | |
1720 | if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {\r | |
1721 | //\r | |
1722 | // Cache the dhcp offers to OfferBuffer[] for select later, and record\r | |
1723 | // the OfferIndex and OfferCount.\r | |
1724 | //\r | |
1725 | PxeBcCacheDhcp6Offer (Private, Packet);\r | |
1726 | }\r | |
1727 | break;\r | |
1728 | \r | |
1729 | case Dhcp6SendRequest:\r | |
1730 | //\r | |
1731 | // Store the request packet as seed packet for discover.\r | |
1732 | //\r | |
1733 | if (Private->Dhcp6Request != NULL) {\r | |
1734 | FreePool (Private->Dhcp6Request);\r | |
1735 | }\r | |
1736 | Private->Dhcp6Request = AllocateZeroPool (Packet->Size);\r | |
1737 | if (Private->Dhcp6Request != NULL) {\r | |
1738 | CopyMem (Private->Dhcp6Request, Packet, Packet->Size);\r | |
1739 | }\r | |
1740 | break;\r | |
1741 | \r | |
1742 | case Dhcp6SelectAdvertise:\r | |
1743 | //\r | |
1744 | // Select offer by the default policy or by order, and record the SelectIndex\r | |
1745 | // and SelectProxyType.\r | |
1746 | //\r | |
1747 | PxeBcSelectDhcp6Offer (Private);\r | |
1748 | \r | |
1749 | if (Private->SelectIndex == 0) {\r | |
1750 | Status = EFI_ABORTED;\r | |
1751 | } else {\r | |
1752 | ASSERT (NewPacket != NULL);\r | |
1753 | SelectAd = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp6.Packet.Offer;\r | |
1754 | *NewPacket = AllocateZeroPool (SelectAd->Size);\r | |
1755 | ASSERT (*NewPacket != NULL);\r | |
1756 | CopyMem (*NewPacket, SelectAd, SelectAd->Size);\r | |
1757 | }\r | |
1758 | break;\r | |
1759 | \r | |
1760 | case Dhcp6RcvdReply:\r | |
1761 | //\r | |
1762 | // Cache the dhcp ack to Private->Dhcp6Ack, but it's not the final ack in mode data\r | |
1763 | // without verification.\r | |
1764 | //\r | |
1765 | ASSERT (Private->SelectIndex != 0);\r | |
1766 | PxeBcCopyDhcp6Ack (Private, Packet, FALSE);\r | |
1767 | break;\r | |
1768 | \r | |
1769 | default:\r | |
1770 | ASSERT (0);\r | |
1771 | }\r | |
1772 | \r | |
1773 | return Status;\r | |
1774 | }\r | |
1775 | \r | |
1776 | \r | |
1777 | /**\r | |
1778 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
1779 | \r | |
1780 | @param[in] Private The pointer to PxeBc private data.\r | |
1781 | @param[in] Type PxeBc option boot item type.\r | |
1782 | @param[in] Layer The pointer to option boot item layer.\r | |
1783 | @param[in] UseBis Use BIS or not.\r | |
1784 | @param[in] DestIp The pointer to the server address.\r | |
1785 | \r | |
1786 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
1787 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
1788 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
1789 | @retval Others Failed to discover the boot file.\r | |
1790 | \r | |
1791 | **/\r | |
1792 | EFI_STATUS\r | |
1793 | PxeBcDhcp6Discover (\r | |
1794 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1795 | IN UINT16 Type,\r | |
1796 | IN UINT16 *Layer,\r | |
1797 | IN BOOLEAN UseBis,\r | |
1798 | IN EFI_IP_ADDRESS *DestIp\r | |
1799 | )\r | |
1800 | {\r | |
1801 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
1802 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
1803 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1804 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r | |
1805 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
1806 | UINTN DiscoverLen;\r | |
1807 | EFI_DHCP6_PACKET *Request;\r | |
1808 | UINTN RequestLen;\r | |
1809 | EFI_DHCP6_PACKET *Reply;\r | |
1810 | UINT8 *RequestOpt;\r | |
1811 | UINT8 *DiscoverOpt;\r | |
1812 | UINTN ReadSize;\r | |
a3bcde70 HT |
1813 | UINT16 OpCode;\r |
1814 | UINT16 OpLen;\r | |
1815 | UINT32 Xid;\r | |
1816 | EFI_STATUS Status;\r | |
1817 | \r | |
1818 | PxeBc = &Private->PxeBc;\r | |
1819 | Mode = PxeBc->Mode;\r | |
1820 | Request = Private->Dhcp6Request;\r | |
1821 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
1822 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
a3bcde70 HT |
1823 | \r |
1824 | if (!UseBis && Layer != NULL) {\r | |
1825 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r | |
1826 | }\r | |
1827 | \r | |
1828 | if (Request == NULL) {\r | |
1829 | return EFI_DEVICE_ERROR;\r | |
1830 | }\r | |
1831 | \r | |
1832 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
1833 | if (Discover == NULL) {\r | |
1834 | return EFI_OUT_OF_RESOURCES;\r | |
1835 | }\r | |
1836 | \r | |
1837 | //\r | |
1838 | // Build the discover packet by the cached request packet before.\r | |
1839 | //\r | |
1840 | Xid = NET_RANDOM (NetRandomInitSeed ());\r | |
1841 | Discover->TransactionId = HTONL (Xid);\r | |
1842 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r | |
1843 | RequestOpt = Request->Dhcp6.Option;\r | |
1844 | DiscoverOpt = Discover->DhcpOptions;\r | |
1845 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
1846 | RequestLen = DiscoverLen;\r | |
1847 | \r | |
1848 | while (RequestLen < Request->Length) {\r | |
1849 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
1850 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
1851 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
1852 | OpCode != EFI_DHCP6_IA_TYPE_TA) {\r | |
1853 | //\r | |
1854 | // Copy all the options except IA option.\r | |
1855 | //\r | |
1856 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
1857 | DiscoverOpt += (OpLen + 4);\r | |
1858 | DiscoverLen += (OpLen + 4);\r | |
1859 | }\r | |
1860 | RequestOpt += (OpLen + 4);\r | |
1861 | RequestLen += (OpLen + 4);\r | |
1862 | }\r | |
1863 | \r | |
1864 | Status = PxeBc->UdpWrite (\r | |
1865 | PxeBc,\r | |
903d1fa9 | 1866 | 0,\r |
a3bcde70 HT |
1867 | &Private->ServerIp,\r |
1868 | &DestPort,\r | |
1869 | NULL,\r | |
1870 | &Private->StationIp,\r | |
1871 | &SrcPort,\r | |
1872 | NULL,\r | |
1873 | NULL,\r | |
1874 | &DiscoverLen,\r | |
1875 | (VOID *) Discover\r | |
1876 | );\r | |
1877 | if (EFI_ERROR (Status)) {\r | |
1878 | return Status;\r | |
1879 | }\r | |
1880 | \r | |
1881 | //\r | |
1882 | // Cache the right PXE reply packet here, set valid flag later.\r | |
1883 | // Especially for PXE discover packet, store it into mode data here.\r | |
1884 | //\r | |
1885 | if (Private->IsDoDiscover) {\r | |
1886 | CopyMem (&Mode->PxeDiscover.Dhcpv6, Discover, DiscoverLen);\r | |
1887 | Reply = &Private->PxeReply.Dhcp6.Packet.Ack;\r | |
1888 | } else {\r | |
1889 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
1890 | }\r | |
1891 | ReadSize = (UINTN) Reply->Size;\r | |
1892 | \r | |
357af285 | 1893 | //\r |
1894 | // Start Udp6Read instance\r | |
1895 | //\r | |
1896 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
1897 | if (EFI_ERROR (Status)) {\r | |
1898 | return Status;\r | |
1899 | }\r | |
1900 | \r | |
a3bcde70 HT |
1901 | Status = PxeBc->UdpRead (\r |
1902 | PxeBc,\r | |
903d1fa9 FS |
1903 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
1904 | NULL,\r | |
a3bcde70 HT |
1905 | &SrcPort,\r |
1906 | &Private->ServerIp,\r | |
1907 | &DestPort,\r | |
1908 | NULL,\r | |
1909 | NULL,\r | |
1910 | &ReadSize,\r | |
1911 | (VOID *) &Reply->Dhcp6\r | |
1912 | );\r | |
357af285 | 1913 | //\r |
1914 | // Stop Udp6Read instance\r | |
1915 | //\r | |
1916 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
a3bcde70 HT |
1917 | if (EFI_ERROR (Status)) {\r |
1918 | return Status;\r | |
1919 | }\r | |
1920 | \r | |
1921 | return EFI_SUCCESS;\r | |
1922 | }\r | |
1923 | \r | |
1924 | \r | |
1925 | /**\r | |
1926 | Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.\r | |
1927 | \r | |
1928 | @param[in] Private The pointer to PxeBc private data.\r | |
1929 | @param[in] Dhcp6 The pointer to the EFI_DHCP6_PROTOCOL\r | |
1930 | \r | |
1931 | @retval EFI_SUCCESS The S.A.R.R. process successfully finished.\r | |
1932 | @retval Others Failed to finish the S.A.R.R. process.\r | |
1933 | \r | |
1934 | **/\r | |
1935 | EFI_STATUS\r | |
1936 | PxeBcDhcp6Sarr (\r | |
1937 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1938 | IN EFI_DHCP6_PROTOCOL *Dhcp6\r | |
1939 | )\r | |
1940 | {\r | |
1941 | EFI_PXE_BASE_CODE_MODE *PxeMode;\r | |
1942 | EFI_DHCP6_CONFIG_DATA Config;\r | |
1943 | EFI_DHCP6_MODE_DATA Mode;\r | |
1944 | EFI_DHCP6_RETRANSMISSION *Retransmit;\r | |
1945 | EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_OPTION_MAX_NUM];\r | |
1946 | UINT8 Buffer[PXEBC_DHCP6_OPTION_MAX_SIZE];\r | |
1947 | UINT32 OptCount;\r | |
1948 | EFI_STATUS Status;\r | |
ed2bfecb | 1949 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r |
1950 | EFI_STATUS TimerStatus;\r | |
1951 | EFI_EVENT Timer;\r | |
1952 | UINT64 GetMappingTimeOut;\r | |
1953 | UINTN DataSize;\r | |
1954 | EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;\r | |
a3bcde70 HT |
1955 | \r |
1956 | Status = EFI_SUCCESS;\r | |
1957 | PxeMode = Private->PxeBc.Mode;\r | |
ed2bfecb | 1958 | Ip6Cfg = Private->Ip6Cfg;\r |
1959 | Timer = NULL;\r | |
a3bcde70 HT |
1960 | \r |
1961 | //\r | |
1962 | // Build option list for the request packet.\r | |
1963 | //\r | |
1964 | OptCount = PxeBcBuildDhcp6Options (Private, OptList, Buffer);\r | |
1965 | ASSERT (OptCount> 0);\r | |
1966 | \r | |
1967 | Retransmit = AllocateZeroPool (sizeof (EFI_DHCP6_RETRANSMISSION));\r | |
1968 | if (Retransmit == NULL) {\r | |
1969 | return EFI_OUT_OF_RESOURCES;\r | |
1970 | }\r | |
1971 | \r | |
1972 | ZeroMem (&Mode, sizeof (EFI_DHCP6_MODE_DATA));\r | |
1973 | ZeroMem (&Config, sizeof (EFI_DHCP6_CONFIG_DATA));\r | |
1974 | \r | |
1975 | Config.OptionCount = OptCount;\r | |
1976 | Config.OptionList = OptList;\r | |
1977 | Config.Dhcp6Callback = PxeBcDhcp6CallBack;\r | |
1978 | Config.CallbackContext = Private;\r | |
1979 | Config.IaInfoEvent = NULL;\r | |
1980 | Config.RapidCommit = FALSE;\r | |
1981 | Config.ReconfigureAccept = FALSE;\r | |
75dce340 | 1982 | Config.IaDescriptor.IaId = Private->IaId;\r |
a3bcde70 HT |
1983 | Config.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;\r |
1984 | Config.SolicitRetransmission = Retransmit;\r | |
1985 | Retransmit->Irt = 4;\r | |
1986 | Retransmit->Mrc = 4;\r | |
1987 | Retransmit->Mrt = 32;\r | |
1988 | Retransmit->Mrd = 60;\r | |
1989 | \r | |
1990 | //\r | |
1991 | // Configure the DHCPv6 instance for PXE boot.\r | |
1992 | //\r | |
1993 | Status = Dhcp6->Configure (Dhcp6, &Config);\r | |
ed2bfecb | 1994 | FreePool (Retransmit);\r |
a3bcde70 | 1995 | if (EFI_ERROR (Status)) {\r |
a3bcde70 HT |
1996 | return Status;\r |
1997 | }\r | |
1998 | \r | |
1999 | //\r | |
2000 | // Initialize the record fields for DHCPv6 offer in private data.\r | |
2001 | //\r | |
2002 | Private->IsProxyRecved = FALSE;\r | |
2003 | Private->OfferNum = 0;\r | |
2004 | Private->SelectIndex = 0;\r | |
2005 | ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));\r | |
2006 | ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));\r | |
2007 | \r | |
2008 | \r | |
2009 | //\r | |
2010 | // Start DHCPv6 S.A.R.R. process to acquire IPv6 address.\r | |
2011 | //\r | |
2012 | Status = Dhcp6->Start (Dhcp6);\r | |
ed2bfecb | 2013 | if (Status == EFI_NO_MAPPING) {\r |
2014 | //\r | |
2015 | // IP6 Linklocal address is not available for use, so stop current Dhcp process\r | |
2016 | // and wait for duplicate address detection to finish.\r | |
2017 | //\r | |
2018 | Dhcp6->Stop (Dhcp6);\r | |
2019 | \r | |
2020 | //\r | |
2021 | // Get Duplicate Address Detection Transmits count.\r | |
2022 | //\r | |
2023 | DataSize = sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS);\r | |
2024 | Status = Ip6Cfg->GetData (\r | |
2025 | Ip6Cfg,\r | |
2026 | Ip6ConfigDataTypeDupAddrDetectTransmits,\r | |
2027 | &DataSize,\r | |
2028 | &DadXmits\r | |
2029 | );\r | |
2030 | if (EFI_ERROR (Status)) {\r | |
2031 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2032 | return Status;\r | |
2033 | }\r | |
2034 | \r | |
2035 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
2036 | if (EFI_ERROR (Status)) {\r | |
2037 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2038 | return Status;\r | |
2039 | }\r | |
2040 | \r | |
2041 | GetMappingTimeOut = TICKS_PER_SECOND * DadXmits.DupAddrDetectTransmits + PXEBC_DAD_ADDITIONAL_DELAY;\r | |
2042 | Status = gBS->SetTimer (Timer, TimerRelative, GetMappingTimeOut);\r | |
2043 | if (EFI_ERROR (Status)) {\r | |
2044 | gBS->CloseEvent (Timer);\r | |
2045 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2046 | return Status;\r | |
2047 | }\r | |
2048 | \r | |
2049 | do {\r | |
2050 | \r | |
2051 | TimerStatus = gBS->CheckEvent (Timer);\r | |
2052 | if (!EFI_ERROR (TimerStatus)) {\r | |
2053 | Status = Dhcp6->Start (Dhcp6);\r | |
2054 | }\r | |
2055 | } while (TimerStatus == EFI_NOT_READY);\r | |
2056 | \r | |
2057 | gBS->CloseEvent (Timer);\r | |
2058 | }\r | |
a3bcde70 HT |
2059 | if (EFI_ERROR (Status)) {\r |
2060 | if (Status == EFI_ICMP_ERROR) {\r | |
2061 | PxeMode->IcmpErrorReceived = TRUE;\r | |
2062 | }\r | |
2063 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2064 | return Status;\r | |
2065 | }\r | |
2066 | \r | |
2067 | //\r | |
2068 | // Get the acquired IPv6 address and store them.\r | |
2069 | //\r | |
2070 | Status = Dhcp6->GetModeData (Dhcp6, &Mode, NULL);\r | |
2071 | if (EFI_ERROR (Status)) {\r | |
2072 | Dhcp6->Stop (Dhcp6);\r | |
2073 | return Status;\r | |
2074 | }\r | |
2075 | \r | |
bec55c33 | 2076 | ASSERT ((Mode.Ia != NULL) && (Mode.Ia->State == Dhcp6Bound));\r |
ae97201c FS |
2077 | //\r |
2078 | // DHCP6 doesn't have an option to specify the router address on the subnet, the only way to get the\r | |
2079 | // router address in IP6 is the router discovery mechanism (the RS and RA, which only be handled when\r | |
2080 | // the IP policy is Automatic). So we just hold the station IP address here and leave the IP policy as\r | |
2081 | // Automatic, until we get the server IP address. This could let IP6 driver finish the router discovery \r | |
2082 | // to find a valid router address.\r | |
2083 | //\r | |
2084 | CopyMem (&Private->TmpStationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));\r | |
ce22514e ZL |
2085 | if (Mode.ClientId != NULL) {\r |
2086 | FreePool (Mode.ClientId);\r | |
2087 | }\r | |
2088 | if (Mode.Ia != NULL) {\r | |
2089 | FreePool (Mode.Ia);\r | |
2090 | }\r | |
a3bcde70 HT |
2091 | //\r |
2092 | // Check the selected offer whether BINL retry is needed.\r | |
2093 | //\r | |
2094 | Status = PxeBcHandleDhcp6Offer (Private);\r | |
2095 | if (EFI_ERROR (Status)) {\r | |
a3bcde70 HT |
2096 | Dhcp6->Stop (Dhcp6);\r |
2097 | return Status;\r | |
2098 | }\r | |
ae97201c | 2099 | \r |
a3bcde70 HT |
2100 | return EFI_SUCCESS;\r |
2101 | }\r |