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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 | |
142c00c3 | 95 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ORO);\r |
6692d519 | 96 | OptList[Index]->OpLen = HTONS (6);\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 |
a3bcde70 HT |
101 | Index++;\r |
102 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
103 | \r | |
104 | //\r | |
105 | // Append client network device interface option\r | |
106 | //\r | |
142c00c3 | 107 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_UNDI);\r |
852b6341 | 108 | OptList[Index]->OpLen = HTONS ((UINT16)3);\r |
a3bcde70 HT |
109 | OptEnt.Undi = (PXEBC_DHCP6_OPTION_UNDI *) OptList[Index]->Data;\r |
110 | \r | |
111 | if (Private->Nii != NULL) {\r | |
112 | OptEnt.Undi->Type = Private->Nii->Type;\r | |
113 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r | |
114 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r | |
115 | } else {\r | |
116 | OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r | |
117 | OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r | |
118 | OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r | |
119 | }\r | |
120 | \r | |
a3bcde70 HT |
121 | Index++;\r |
122 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
123 | \r | |
124 | //\r | |
125 | // Append client system architecture option\r | |
126 | //\r | |
142c00c3 | 127 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ARCH);\r |
a3bcde70 HT |
128 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_ARCH));\r |
129 | OptEnt.Arch = (PXEBC_DHCP6_OPTION_ARCH *) OptList[Index]->Data;\r | |
130 | Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r | |
131 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r | |
132 | Index++;\r | |
133 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r | |
134 | \r | |
135 | //\r | |
136 | // Append vendor class option to store the PXE class identifier.\r | |
137 | //\r | |
142c00c3 | 138 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_VENDOR_CLASS);\r |
a3bcde70 HT |
139 | OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_VENDOR_CLASS));\r |
140 | OptEnt.VendorClass = (PXEBC_DHCP6_OPTION_VENDOR_CLASS *) OptList[Index]->Data;\r | |
141 | OptEnt.VendorClass->Vendor = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);\r | |
142 | OptEnt.VendorClass->ClassLen = HTONS ((UINT16) sizeof (PXEBC_CLASS_ID));\r | |
143 | CopyMem (\r | |
144 | &OptEnt.VendorClass->ClassId,\r | |
145 | DEFAULT_CLASS_ID_DATA,\r | |
146 | sizeof (PXEBC_CLASS_ID)\r | |
147 | );\r | |
148 | PxeBcUintnToAscDecWithFormat (\r | |
149 | EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE,\r | |
150 | OptEnt.VendorClass->ClassId.ArchitectureType,\r | |
151 | sizeof (OptEnt.VendorClass->ClassId.ArchitectureType)\r | |
152 | );\r | |
153 | \r | |
154 | if (Private->Nii != NULL) {\r | |
155 | CopyMem (\r | |
156 | OptEnt.VendorClass->ClassId.InterfaceName,\r | |
157 | Private->Nii->StringId,\r | |
158 | sizeof (OptEnt.VendorClass->ClassId.InterfaceName)\r | |
159 | );\r | |
160 | PxeBcUintnToAscDecWithFormat (\r | |
161 | Private->Nii->MajorVer,\r | |
162 | OptEnt.VendorClass->ClassId.UndiMajor,\r | |
163 | sizeof (OptEnt.VendorClass->ClassId.UndiMajor)\r | |
164 | );\r | |
165 | PxeBcUintnToAscDecWithFormat (\r | |
166 | Private->Nii->MinorVer,\r | |
167 | OptEnt.VendorClass->ClassId.UndiMinor,\r | |
168 | sizeof (OptEnt.VendorClass->ClassId.UndiMinor)\r | |
169 | );\r | |
170 | }\r | |
171 | \r | |
172 | Index++;\r | |
173 | \r | |
174 | return Index;\r | |
175 | }\r | |
176 | \r | |
177 | \r | |
178 | /**\r | |
179 | Cache the DHCPv6 packet.\r | |
180 | \r | |
181 | @param[in] Dst The pointer to the cache buffer for DHCPv6 packet.\r | |
182 | @param[in] Src The pointer to the DHCPv6 packet to be cached.\r | |
183 | \r | |
184 | **/\r | |
185 | VOID\r | |
186 | PxeBcCacheDhcp6Packet (\r | |
187 | IN EFI_DHCP6_PACKET *Dst,\r | |
188 | IN EFI_DHCP6_PACKET *Src\r | |
189 | )\r | |
190 | {\r | |
191 | ASSERT (Dst->Size >= Src->Length);\r | |
192 | \r | |
193 | CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);\r | |
194 | Dst->Length = Src->Length;\r | |
195 | }\r | |
196 | \r | |
197 | \r | |
198 | /**\r | |
199 | Free all the nodes in the list for boot file.\r | |
200 | \r | |
201 | @param[in] Head The pointer to the head of list.\r | |
202 | \r | |
203 | **/\r | |
204 | VOID\r | |
205 | PxeBcFreeBootFileOption (\r | |
206 | IN LIST_ENTRY *Head\r | |
207 | )\r | |
208 | {\r | |
209 | LIST_ENTRY *Entry;\r | |
210 | LIST_ENTRY *NextEntry;\r | |
211 | PXEBC_DHCP6_OPTION_NODE *Node;\r | |
212 | \r | |
213 | NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, Head) {\r | |
214 | Node = NET_LIST_USER_STRUCT (Entry, PXEBC_DHCP6_OPTION_NODE, Link);\r | |
215 | RemoveEntryList (Entry);\r | |
216 | FreePool (Node);\r | |
217 | }\r | |
218 | }\r | |
219 | \r | |
6692d519 ZL |
220 | /**\r |
221 | Retrieve the boot server address using the EFI_DNS6_PROTOCOL.\r | |
222 | \r | |
223 | @param[in] Private Pointer to PxeBc private data.\r | |
224 | @param[in] HostName Pointer to buffer containing hostname.\r | |
225 | @param[out] IpAddress On output, pointer to buffer containing IPv6 address.\r | |
226 | \r | |
227 | @retval EFI_SUCCESS Operation succeeded.\r | |
228 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
229 | @retval EFI_DEVICE_ERROR An unexpected network error occurred.\r | |
230 | @retval Others Other errors as indicated.\r | |
231 | \r | |
232 | **/\r | |
233 | EFI_STATUS\r | |
234 | PxeBcDns6 (\r | |
235 | IN PXEBC_PRIVATE_DATA *Private,\r | |
236 | IN CHAR16 *HostName,\r | |
237 | OUT EFI_IPv6_ADDRESS *IpAddress \r | |
238 | )\r | |
239 | {\r | |
240 | EFI_STATUS Status;\r | |
241 | EFI_DNS6_PROTOCOL *Dns6;\r | |
242 | EFI_DNS6_CONFIG_DATA Dns6ConfigData;\r | |
243 | EFI_DNS6_COMPLETION_TOKEN Token;\r | |
244 | EFI_HANDLE Dns6Handle;\r | |
245 | EFI_IPv6_ADDRESS *DnsServerList;\r | |
246 | BOOLEAN IsDone;\r | |
247 | \r | |
248 | Dns6 = NULL;\r | |
249 | Dns6Handle = NULL;\r | |
250 | DnsServerList = Private->DnsServer;\r | |
251 | ZeroMem (&Token, sizeof (EFI_DNS6_COMPLETION_TOKEN));\r | |
252 | \r | |
253 | //\r | |
254 | // Create a DNSv6 child instance and get the protocol.\r | |
255 | //\r | |
256 | Status = NetLibCreateServiceChild (\r | |
257 | Private->Controller,\r | |
258 | Private->Image,\r | |
259 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
260 | &Dns6Handle\r | |
261 | );\r | |
262 | if (EFI_ERROR (Status)) {\r | |
263 | goto Exit;\r | |
264 | } \r | |
265 | \r | |
266 | Status = gBS->OpenProtocol (\r | |
267 | Dns6Handle,\r | |
268 | &gEfiDns6ProtocolGuid,\r | |
269 | (VOID **) &Dns6,\r | |
270 | Private->Image,\r | |
271 | Private->Controller,\r | |
272 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
273 | );\r | |
274 | if (EFI_ERROR (Status)) {\r | |
275 | goto Exit;\r | |
276 | }\r | |
277 | \r | |
278 | //\r | |
279 | // Configure DNS6 instance for the DNS server address and protocol.\r | |
280 | //\r | |
281 | ZeroMem (&Dns6ConfigData, sizeof (EFI_DNS6_CONFIG_DATA));\r | |
282 | Dns6ConfigData.DnsServerCount = 1;\r | |
283 | Dns6ConfigData.DnsServerList = DnsServerList;\r | |
284 | Dns6ConfigData.EnableDnsCache = TRUE;\r | |
285 | Dns6ConfigData.Protocol = EFI_IP_PROTO_UDP;\r | |
286 | IP6_COPY_ADDRESS (&Dns6ConfigData.StationIp, &Private->TmpStationIp.v6);\r | |
287 | Status = Dns6->Configure (\r | |
288 | Dns6,\r | |
289 | &Dns6ConfigData\r | |
290 | );\r | |
291 | if (EFI_ERROR (Status)) {\r | |
292 | goto Exit;\r | |
293 | }\r | |
294 | \r | |
295 | Token.Status = EFI_NOT_READY;\r | |
296 | IsDone = FALSE;\r | |
297 | //\r | |
298 | // Create event to set the IsDone flag when name resolution is finished.\r | |
299 | //\r | |
300 | Status = gBS->CreateEvent (\r | |
301 | EVT_NOTIFY_SIGNAL,\r | |
302 | TPL_NOTIFY,\r | |
303 | PxeBcCommonNotify,\r | |
304 | &IsDone,\r | |
305 | &Token.Event\r | |
306 | );\r | |
307 | if (EFI_ERROR (Status)) {\r | |
308 | goto Exit;\r | |
309 | }\r | |
310 | \r | |
311 | //\r | |
312 | // Start asynchronous name resolution.\r | |
313 | //\r | |
314 | Status = Dns6->HostNameToIp (Dns6, HostName, &Token);\r | |
315 | if (EFI_ERROR (Status)) {\r | |
316 | goto Exit;\r | |
317 | }\r | |
318 | \r | |
319 | while (!IsDone) {\r | |
320 | Dns6->Poll (Dns6);\r | |
321 | }\r | |
322 | \r | |
323 | //\r | |
324 | // Name resolution is done, check result.\r | |
325 | //\r | |
326 | Status = Token.Status; \r | |
327 | if (!EFI_ERROR (Status)) {\r | |
328 | if (Token.RspData.H2AData == NULL) {\r | |
329 | Status = EFI_DEVICE_ERROR;\r | |
330 | goto Exit;\r | |
331 | }\r | |
332 | if (Token.RspData.H2AData->IpCount == 0 || Token.RspData.H2AData->IpList == NULL) {\r | |
333 | Status = EFI_DEVICE_ERROR;\r | |
334 | goto Exit;\r | |
335 | }\r | |
336 | //\r | |
337 | // We just return the first IPv6 address from DNS protocol.\r | |
338 | //\r | |
339 | IP6_COPY_ADDRESS (IpAddress, Token.RspData.H2AData->IpList);\r | |
340 | Status = EFI_SUCCESS;\r | |
341 | }\r | |
342 | \r | |
343 | Exit:\r | |
344 | FreePool (HostName);\r | |
345 | \r | |
346 | if (Token.Event != NULL) {\r | |
347 | gBS->CloseEvent (Token.Event);\r | |
348 | }\r | |
349 | if (Token.RspData.H2AData != NULL) {\r | |
350 | if (Token.RspData.H2AData->IpList != NULL) {\r | |
351 | FreePool (Token.RspData.H2AData->IpList);\r | |
352 | }\r | |
353 | FreePool (Token.RspData.H2AData);\r | |
354 | }\r | |
355 | \r | |
356 | if (Dns6 != NULL) {\r | |
357 | Dns6->Configure (Dns6, NULL);\r | |
358 | \r | |
359 | gBS->CloseProtocol (\r | |
360 | Dns6Handle,\r | |
361 | &gEfiDns6ProtocolGuid,\r | |
362 | Private->Image,\r | |
363 | Private->Controller\r | |
364 | );\r | |
365 | }\r | |
366 | \r | |
367 | if (Dns6Handle != NULL) {\r | |
368 | NetLibDestroyServiceChild (\r | |
369 | Private->Controller,\r | |
370 | Private->Image,\r | |
371 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
372 | Dns6Handle\r | |
373 | );\r | |
374 | }\r | |
375 | \r | |
376 | if (DnsServerList != NULL) {\r | |
377 | FreePool (DnsServerList);\r | |
378 | }\r | |
379 | \r | |
380 | return Status; \r | |
381 | }\r | |
a3bcde70 HT |
382 | \r |
383 | /**\r | |
384 | Parse the Boot File URL option.\r | |
385 | \r | |
6692d519 | 386 | @param[in] Private Pointer to PxeBc private data.\r |
a3bcde70 HT |
387 | @param[out] FileName The pointer to the boot file name.\r |
388 | @param[in, out] SrvAddr The pointer to the boot server address.\r | |
389 | @param[in] BootFile The pointer to the boot file URL option data.\r | |
390 | @param[in] Length The length of the boot file URL option data.\r | |
391 | \r | |
392 | @retval EFI_ABORTED User cancel operation.\r | |
393 | @retval EFI_SUCCESS Selected the boot menu successfully.\r | |
394 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r | |
395 | \r | |
396 | **/\r | |
397 | EFI_STATUS\r | |
398 | PxeBcExtractBootFileUrl (\r | |
6692d519 | 399 | IN PXEBC_PRIVATE_DATA *Private,\r |
a3bcde70 HT |
400 | OUT UINT8 **FileName,\r |
401 | IN OUT EFI_IPv6_ADDRESS *SrvAddr,\r | |
402 | IN CHAR8 *BootFile,\r | |
403 | IN UINT16 Length\r | |
404 | )\r | |
405 | {\r | |
406 | UINT16 PrefixLen;\r | |
01d89e9c | 407 | CHAR8 *BootFileNamePtr;\r |
408 | CHAR8 *BootFileName;\r | |
a3bcde70 HT |
409 | UINT16 BootFileNameLen;\r |
410 | CHAR8 *TmpStr;\r | |
129b8b09 | 411 | CHAR8 TmpChar;\r |
a3bcde70 HT |
412 | CHAR8 *ServerAddressOption;\r |
413 | CHAR8 *ServerAddress;\r | |
eb2710af | 414 | CHAR8 *ModeStr;\r |
6692d519 ZL |
415 | CHAR16 *HostName;\r |
416 | BOOLEAN IpExpressedUrl;\r | |
417 | UINTN Len;\r | |
a3bcde70 HT |
418 | EFI_STATUS Status;\r |
419 | \r | |
6692d519 | 420 | IpExpressedUrl = TRUE;\r |
a3bcde70 HT |
421 | //\r |
422 | // The format of the Boot File URL option is:\r | |
423 | //\r | |
424 | // 0 1 2 3\r | |
425 | // 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 | |
426 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
427 | // | OPT_BOOTFILE_URL | option-len |\r | |
428 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
429 | // | |\r | |
430 | // . bootfile-url (variable length) .\r | |
431 | // | |\r | |
432 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
433 | //\r | |
434 | \r | |
435 | //\r | |
6692d519 ZL |
436 | // Based upon RFC 5970 and UEFI 2.6, bootfile-url format can be\r |
437 | // tftp://[SERVER_ADDRESS]/BOOTFILE_NAME or tftp://domain_name/BOOTFILE_NAME\r | |
a3bcde70 HT |
438 | // As an example where the BOOTFILE_NAME is the EFI loader and\r |
439 | // SERVER_ADDRESS is the ASCII encoding of an IPV6 address.\r | |
440 | //\r | |
441 | PrefixLen = (UINT16) AsciiStrLen (PXEBC_DHCP6_BOOT_FILE_URL_PREFIX);\r | |
442 | \r | |
443 | if (Length <= PrefixLen ||\r | |
444 | CompareMem (BootFile, PXEBC_DHCP6_BOOT_FILE_URL_PREFIX, PrefixLen) != 0) {\r | |
445 | return EFI_NOT_FOUND;\r | |
446 | }\r | |
447 | \r | |
448 | BootFile = BootFile + PrefixLen;\r | |
449 | Length = (UINT16) (Length - PrefixLen);\r | |
450 | \r | |
451 | TmpStr = (CHAR8 *) AllocateZeroPool (Length + 1);\r | |
452 | if (TmpStr == NULL) {\r | |
453 | return EFI_OUT_OF_RESOURCES;\r | |
454 | }\r | |
455 | \r | |
456 | CopyMem (TmpStr, BootFile, Length);\r | |
457 | TmpStr[Length] = '\0';\r | |
458 | \r | |
459 | //\r | |
460 | // Get the part of SERVER_ADDRESS string.\r | |
461 | //\r | |
462 | ServerAddressOption = TmpStr;\r | |
6692d519 ZL |
463 | if (*ServerAddressOption == PXEBC_ADDR_START_DELIMITER) {\r |
464 | ServerAddressOption ++;\r | |
465 | ServerAddress = ServerAddressOption;\r | |
466 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r | |
467 | ServerAddress++;\r | |
468 | }\r | |
469 | \r | |
470 | if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r | |
471 | FreePool (TmpStr);\r | |
472 | return EFI_INVALID_PARAMETER;\r | |
473 | }\r | |
474 | \r | |
475 | *ServerAddress = '\0';\r | |
476 | \r | |
477 | //\r | |
478 | // Convert the string of server address to Ipv6 address format and store it.\r | |
479 | //\r | |
480 | Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);\r | |
481 | if (EFI_ERROR (Status)) {\r | |
482 | FreePool (TmpStr);\r | |
483 | return Status;\r | |
484 | }\r | |
a3bcde70 | 485 | \r |
6692d519 ZL |
486 | } else {\r |
487 | IpExpressedUrl = FALSE;\r | |
488 | ServerAddress = ServerAddressOption;\r | |
489 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r | |
490 | ServerAddress++;\r | |
491 | }\r | |
a3bcde70 | 492 | \r |
6692d519 ZL |
493 | if (*ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r |
494 | FreePool (TmpStr);\r | |
495 | return EFI_INVALID_PARAMETER;\r | |
496 | }\r | |
497 | *ServerAddress = '\0';\r | |
a3bcde70 | 498 | \r |
6692d519 ZL |
499 | Len = AsciiStrSize (ServerAddressOption);\r |
500 | HostName = AllocateZeroPool (Len * sizeof (CHAR16));\r | |
501 | if (HostName == NULL) {\r | |
502 | FreePool (TmpStr);\r | |
503 | return EFI_OUT_OF_RESOURCES;\r | |
504 | }\r | |
505 | AsciiStrToUnicodeStrS (\r | |
506 | ServerAddressOption,\r | |
507 | HostName,\r | |
508 | Len\r | |
509 | );\r | |
a3bcde70 | 510 | \r |
6692d519 ZL |
511 | //\r |
512 | // Perform DNS resolution.\r | |
513 | //\r | |
514 | Status = PxeBcDns6 (Private,HostName, SrvAddr);\r | |
515 | if (EFI_ERROR (Status)) {\r | |
516 | FreePool (TmpStr);\r | |
517 | return Status;\r | |
518 | }\r | |
a3bcde70 HT |
519 | }\r |
520 | \r | |
521 | //\r | |
522 | // Get the part of BOOTFILE_NAME string.\r | |
523 | //\r | |
01d89e9c | 524 | BootFileNamePtr = (CHAR8*)((UINTN)ServerAddress + 1);\r |
6692d519 ZL |
525 | if (IpExpressedUrl) {\r |
526 | if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {\r | |
527 | FreePool (TmpStr);\r | |
528 | return EFI_INVALID_PARAMETER;\r | |
529 | }\r | |
530 | ++BootFileNamePtr;\r | |
a3bcde70 HT |
531 | }\r |
532 | \r | |
a3bcde70 HT |
533 | BootFileNameLen = (UINT16)(Length - (UINT16) ((UINTN)BootFileNamePtr - (UINTN)TmpStr) + 1);\r |
534 | if (BootFileNameLen != 0 || FileName != NULL) {\r | |
eb2710af | 535 | //\r |
536 | // Remove trailing mode=octet if present and ignore. All other modes are\r | |
537 | // invalid for netboot6, so reject them.\r | |
538 | //\r | |
539 | ModeStr = AsciiStrStr (BootFileNamePtr, ";mode=octet");\r | |
540 | if (ModeStr != NULL && *(ModeStr + AsciiStrLen (";mode=octet")) == '\0') {\r | |
541 | *ModeStr = '\0';\r | |
542 | } else if (AsciiStrStr (BootFileNamePtr, ";mode=") != NULL) {\r | |
543 | return EFI_INVALID_PARAMETER;\r | |
544 | }\r | |
545 | \r | |
129b8b09 | 546 | //\r |
547 | // Extract boot file name from URL.\r | |
548 | //\r | |
01d89e9c | 549 | BootFileName = (CHAR8 *) AllocateZeroPool (BootFileNameLen);\r |
a3bcde70 HT |
550 | if (BootFileName == NULL) {\r |
551 | FreePool (TmpStr);\r | |
552 | return EFI_OUT_OF_RESOURCES;\r | |
553 | }\r | |
01d89e9c | 554 | *FileName = (UINT8*) BootFileName;\r |
a3bcde70 | 555 | \r |
129b8b09 | 556 | //\r |
557 | // Decode percent-encoding in boot file name.\r | |
558 | //\r | |
559 | while (*BootFileNamePtr != '\0') {\r | |
560 | if (*BootFileNamePtr == '%') {\r | |
561 | TmpChar = *(BootFileNamePtr+ 3);\r | |
562 | *(BootFileNamePtr+ 3) = '\0';\r | |
2f3f1a64 | 563 | *BootFileName = (UINT8) AsciiStrHexToUintn ((CHAR8*)(BootFileNamePtr + 1));\r |
129b8b09 | 564 | BootFileName++;\r |
565 | *(BootFileNamePtr+ 3) = TmpChar;\r | |
566 | BootFileNamePtr += 3;\r | |
567 | } else {\r | |
568 | *BootFileName = *BootFileNamePtr;\r | |
569 | BootFileName++;\r | |
570 | BootFileNamePtr++;\r | |
571 | }\r | |
572 | }\r | |
573 | *BootFileName = '\0';\r | |
574 | }\r | |
a3bcde70 HT |
575 | \r |
576 | FreePool (TmpStr);\r | |
577 | \r | |
578 | return EFI_SUCCESS;\r | |
579 | }\r | |
580 | \r | |
581 | \r | |
582 | /**\r | |
583 | Parse the Boot File Parameter option.\r | |
584 | \r | |
585 | @param[in] BootFilePara The pointer to boot file parameter option data.\r | |
586 | @param[out] BootFileSize The pointer to the parsed boot file size.\r | |
587 | \r | |
588 | @retval EFI_SUCCESS Successfully obtained the boot file size from parameter option.\r | |
589 | @retval EFI_NOT_FOUND Failed to extract the boot file size from parameter option.\r | |
590 | \r | |
591 | **/\r | |
592 | EFI_STATUS\r | |
593 | PxeBcExtractBootFileParam (\r | |
594 | IN CHAR8 *BootFilePara,\r | |
595 | OUT UINT16 *BootFileSize\r | |
596 | )\r | |
597 | {\r | |
598 | UINT16 Length;\r | |
599 | UINT8 Index;\r | |
600 | UINT8 Digit;\r | |
601 | UINT32 Size;\r | |
602 | \r | |
603 | CopyMem (&Length, BootFilePara, sizeof (UINT16));\r | |
604 | Length = NTOHS (Length);\r | |
605 | \r | |
606 | //\r | |
607 | // The BootFile Size should be 1~5 byte ASCII strings\r | |
608 | //\r | |
609 | if (Length < 1 || Length > 5) {\r | |
610 | return EFI_NOT_FOUND;\r | |
611 | }\r | |
612 | \r | |
613 | //\r | |
614 | // Extract the value of BootFile Size.\r | |
615 | //\r | |
616 | BootFilePara = BootFilePara + sizeof (UINT16);\r | |
617 | Size = 0;\r | |
618 | for (Index = 0; Index < Length; Index++) {\r | |
619 | if (EFI_ERROR (PxeBcUniHexToUint8 (&Digit, *(BootFilePara + Index)))) {\r | |
620 | return EFI_NOT_FOUND;\r | |
621 | }\r | |
622 | \r | |
623 | Size = (Size + Digit) * 10;\r | |
624 | }\r | |
625 | \r | |
626 | Size = Size / 10;\r | |
627 | if (Size > PXEBC_DHCP6_MAX_BOOT_FILE_SIZE) {\r | |
628 | return EFI_NOT_FOUND;\r | |
629 | }\r | |
630 | \r | |
631 | *BootFileSize = (UINT16) Size;\r | |
632 | return EFI_SUCCESS;\r | |
633 | }\r | |
634 | \r | |
635 | \r | |
636 | /**\r | |
637 | Parse the cached DHCPv6 packet, including all the options.\r | |
638 | \r | |
639 | @param[in] Cache6 The pointer to a cached DHCPv6 packet.\r | |
640 | \r | |
641 | @retval EFI_SUCCESS Parsed the DHCPv6 packet successfully.\r | |
642 | @retval EFI_DEVICE_ERROR Failed to parse and invalid the packet.\r | |
643 | \r | |
644 | **/\r | |
645 | EFI_STATUS\r | |
646 | PxeBcParseDhcp6Packet (\r | |
647 | IN PXEBC_DHCP6_PACKET_CACHE *Cache6\r | |
648 | )\r | |
649 | {\r | |
650 | EFI_DHCP6_PACKET *Offer;\r | |
651 | EFI_DHCP6_PACKET_OPTION **Options;\r | |
652 | EFI_DHCP6_PACKET_OPTION *Option;\r | |
653 | PXEBC_OFFER_TYPE OfferType;\r | |
654 | BOOLEAN IsProxyOffer;\r | |
655 | BOOLEAN IsPxeOffer;\r | |
656 | UINT32 Offset;\r | |
657 | UINT32 Length;\r | |
658 | UINT32 EnterpriseNum;\r | |
659 | \r | |
660 | IsProxyOffer = TRUE;\r | |
661 | IsPxeOffer = FALSE;\r | |
662 | Offer = &Cache6->Packet.Offer;\r | |
663 | Options = Cache6->OptList;\r | |
664 | \r | |
665 | ZeroMem (Cache6->OptList, sizeof (Cache6->OptList));\r | |
666 | \r | |
667 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option);\r | |
668 | Offset = 0;\r | |
669 | Length = GET_DHCP6_OPTION_SIZE (Offer);\r | |
670 | \r | |
671 | //\r | |
672 | // OpLen and OpCode here are both stored in network order, since they are from original packet.\r | |
673 | //\r | |
674 | while (Offset < Length) {\r | |
675 | \r | |
142c00c3 | 676 | if (NTOHS (Option->OpCode) == DHCP6_OPT_IA_NA) {\r |
a3bcde70 | 677 | Options[PXEBC_DHCP6_IDX_IA_NA] = Option;\r |
142c00c3 | 678 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_URL) {\r |
a3bcde70 HT |
679 | //\r |
680 | // The server sends this option to inform the client about an URL to a boot file.\r | |
681 | //\r | |
682 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_URL] = Option;\r | |
142c00c3 | 683 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_PARAM) {\r |
a3bcde70 | 684 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_PARAM] = Option;\r |
142c00c3 | 685 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {\r |
a3bcde70 | 686 | Options[PXEBC_DHCP6_IDX_VENDOR_CLASS] = Option;\r |
6692d519 ZL |
687 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_DNS_SERVERS) {\r |
688 | Options[PXEBC_DHCP6_IDX_DNS_SERVER] = Option;\r | |
a3bcde70 HT |
689 | }\r |
690 | \r | |
691 | Offset += (NTOHS (Option->OpLen) + 4);\r | |
692 | Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option + Offset);\r | |
693 | }\r | |
694 | \r | |
695 | //\r | |
ae97201c | 696 | // The offer with assigned client address is NOT a proxy offer.\r |
a3bcde70 HT |
697 | // An ia_na option, embeded with valid ia_addr option and a status_code of success.\r |
698 | //\r | |
699 | Option = Options[PXEBC_DHCP6_IDX_IA_NA];\r | |
129b8b09 | 700 | if (Option != NULL) {\r |
a3bcde70 HT |
701 | Option = PxeBcParseDhcp6Options (\r |
702 | Option->Data + 12,\r | |
703 | NTOHS (Option->OpLen),\r | |
142c00c3 | 704 | DHCP6_OPT_STATUS_CODE\r |
a3bcde70 | 705 | );\r |
129b8b09 | 706 | if ((Option != NULL && Option->Data[0] == 0) || (Option == NULL)) {\r |
a3bcde70 HT |
707 | IsProxyOffer = FALSE;\r |
708 | }\r | |
709 | }\r | |
710 | \r | |
711 | //\r | |
712 | // The offer with "PXEClient" is a pxe offer.\r | |
713 | //\r | |
714 | Option = Options[PXEBC_DHCP6_IDX_VENDOR_CLASS];\r | |
129b8b09 | 715 | EnterpriseNum = HTONL(PXEBC_DHCP6_ENTERPRISE_NUM);\r |
716 | \r | |
a3bcde70 HT |
717 | if (Option != NULL &&\r |
718 | NTOHS(Option->OpLen) >= 13 &&\r | |
719 | CompareMem (Option->Data, &EnterpriseNum, sizeof (UINT32)) == 0 &&\r | |
129b8b09 | 720 | CompareMem (&Option->Data[6], DEFAULT_CLASS_ID_DATA, 9) == 0) {\r |
a3bcde70 HT |
721 | IsPxeOffer = TRUE;\r |
722 | }\r | |
723 | \r | |
724 | //\r | |
725 | // Determine offer type of the dhcp6 packet.\r | |
726 | //\r | |
727 | if (IsPxeOffer) {\r | |
728 | //\r | |
729 | // It's a binl offer only with PXEClient.\r | |
730 | //\r | |
731 | OfferType = IsProxyOffer ? PxeOfferTypeProxyBinl : PxeOfferTypeDhcpBinl;\r | |
732 | } else {\r | |
733 | //\r | |
734 | // It's a dhcp only offer, which is a pure dhcp6 offer packet.\r | |
735 | //\r | |
736 | OfferType = PxeOfferTypeDhcpOnly;\r | |
737 | }\r | |
738 | \r | |
739 | Cache6->OfferType = OfferType;\r | |
740 | \r | |
741 | return EFI_SUCCESS;\r | |
742 | }\r | |
743 | \r | |
744 | \r | |
745 | /**\r | |
746 | Cache the DHCPv6 ack packet, and parse it on demand.\r | |
747 | \r | |
748 | @param[in] Private The pointer to PxeBc private data.\r | |
749 | @param[in] Ack The pointer to the DHCPv6 ack packet.\r | |
750 | @param[in] Verified If TRUE, parse the ACK packet and store info into mode data.\r | |
751 | \r | |
752 | **/\r | |
753 | VOID\r | |
754 | PxeBcCopyDhcp6Ack (\r | |
755 | IN PXEBC_PRIVATE_DATA *Private,\r | |
756 | IN EFI_DHCP6_PACKET *Ack,\r | |
757 | IN BOOLEAN Verified\r | |
758 | )\r | |
759 | {\r | |
760 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
761 | \r | |
762 | Mode = Private->PxeBc.Mode;\r | |
763 | \r | |
764 | PxeBcCacheDhcp6Packet (&Private->DhcpAck.Dhcp6.Packet.Ack, Ack);\r | |
765 | \r | |
766 | if (Verified) {\r | |
767 | //\r | |
768 | // Parse the ack packet and store it into mode data if needed.\r | |
769 | //\r | |
770 | PxeBcParseDhcp6Packet (&Private->DhcpAck.Dhcp6);\r | |
771 | CopyMem (&Mode->DhcpAck.Dhcpv6, &Ack->Dhcp6, Ack->Length);\r | |
772 | Mode->DhcpAckReceived = TRUE;\r | |
773 | }\r | |
774 | }\r | |
775 | \r | |
776 | \r | |
777 | /**\r | |
778 | Cache the DHCPv6 proxy offer packet according to the received order.\r | |
779 | \r | |
780 | @param[in] Private The pointer to PxeBc private data.\r | |
781 | @param[in] OfferIndex The received order of offer packets.\r | |
782 | \r | |
783 | **/\r | |
784 | VOID\r | |
785 | PxeBcCopyDhcp6Proxy (\r | |
786 | IN PXEBC_PRIVATE_DATA *Private,\r | |
787 | IN UINT32 OfferIndex\r | |
788 | )\r | |
789 | {\r | |
790 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
791 | EFI_DHCP6_PACKET *Offer;\r | |
792 | \r | |
793 | ASSERT (OfferIndex < Private->OfferNum);\r | |
794 | ASSERT (OfferIndex < PXEBC_OFFER_MAX_NUM);\r | |
795 | \r | |
796 | Mode = Private->PxeBc.Mode;\r | |
797 | Offer = &Private->OfferBuffer[OfferIndex].Dhcp6.Packet.Offer;\r | |
798 | \r | |
799 | //\r | |
800 | // Cache the proxy offer packet and parse it.\r | |
801 | //\r | |
802 | PxeBcCacheDhcp6Packet (&Private->ProxyOffer.Dhcp6.Packet.Offer, Offer);\r | |
803 | PxeBcParseDhcp6Packet (&Private->ProxyOffer.Dhcp6);\r | |
804 | \r | |
805 | //\r | |
806 | // Store this packet into mode data.\r | |
807 | //\r | |
808 | CopyMem (&Mode->ProxyOffer.Dhcpv6, &Offer->Dhcp6, Offer->Length);\r | |
809 | Mode->ProxyOfferReceived = TRUE;\r | |
810 | }\r | |
811 | \r | |
129b8b09 | 812 | /**\r |
813 | Seek the address of the first byte of the option header.\r | |
814 | \r | |
815 | @param[in] Buf The pointer to the buffer.\r | |
816 | @param[in] SeekLen The length to seek.\r | |
817 | @param[in] OptType The option type.\r | |
818 | \r | |
819 | @retval NULL If it failed to seek the option.\r | |
820 | @retval others The position to the option.\r | |
821 | \r | |
822 | **/\r | |
823 | UINT8 *\r | |
824 | PxeBcDhcp6SeekOption (\r | |
825 | IN UINT8 *Buf,\r | |
826 | IN UINT32 SeekLen,\r | |
827 | IN UINT16 OptType\r | |
828 | )\r | |
829 | {\r | |
830 | UINT8 *Cursor;\r | |
831 | UINT8 *Option;\r | |
832 | UINT16 DataLen;\r | |
833 | UINT16 OpCode;\r | |
834 | \r | |
835 | Option = NULL;\r | |
836 | Cursor = Buf;\r | |
837 | \r | |
838 | while (Cursor < Buf + SeekLen) {\r | |
839 | OpCode = ReadUnaligned16 ((UINT16 *) Cursor);\r | |
840 | if (OpCode == HTONS (OptType)) {\r | |
841 | Option = Cursor;\r | |
842 | break;\r | |
843 | }\r | |
844 | DataLen = NTOHS (ReadUnaligned16 ((UINT16 *) (Cursor + 2)));\r | |
845 | Cursor += (DataLen + 4);\r | |
846 | }\r | |
847 | \r | |
848 | return Option;\r | |
849 | }\r | |
850 | \r | |
851 | \r | |
852 | /**\r | |
853 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
854 | \r | |
855 | @param[in] Private The pointer to PxeBc private data.\r | |
856 | @param[in] Index PxeBc option boot item type.\r | |
857 | \r | |
858 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
859 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
860 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
861 | @retval Others Failed to discover the boot file.\r | |
862 | \r | |
863 | **/\r | |
864 | EFI_STATUS\r | |
865 | PxeBcRequestBootService (\r | |
866 | IN PXEBC_PRIVATE_DATA *Private,\r | |
867 | IN UINT32 Index\r | |
868 | )\r | |
869 | {\r | |
870 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
871 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
129b8b09 | 872 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r |
873 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
874 | UINTN DiscoverLen;\r | |
875 | EFI_DHCP6_PACKET *Request;\r | |
876 | UINTN RequestLen;\r | |
877 | EFI_DHCP6_PACKET *Reply;\r | |
878 | UINT8 *RequestOpt;\r | |
879 | UINT8 *DiscoverOpt;\r | |
880 | UINTN ReadSize;\r | |
881 | UINT16 OpFlags;\r | |
882 | UINT16 OpCode;\r | |
883 | UINT16 OpLen;\r | |
884 | EFI_STATUS Status;\r | |
885 | EFI_DHCP6_PACKET *ProxyOffer;\r | |
886 | UINT8 *Option;\r | |
887 | \r | |
888 | PxeBc = &Private->PxeBc;\r | |
129b8b09 | 889 | Request = Private->Dhcp6Request;\r |
890 | ProxyOffer = &Private->OfferBuffer[Index].Dhcp6.Packet.Offer;\r | |
891 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
892 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
893 | OpFlags = 0;\r | |
894 | \r | |
895 | if (Request == NULL) {\r | |
896 | return EFI_DEVICE_ERROR;\r | |
897 | }\r | |
898 | \r | |
899 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
900 | if (Discover == NULL) {\r | |
901 | return EFI_OUT_OF_RESOURCES;\r | |
902 | }\r | |
903 | \r | |
904 | //\r | |
905 | // Build the request packet by the cached request packet before.\r | |
906 | //\r | |
907 | Discover->TransactionId = ProxyOffer->Dhcp6.Header.TransactionId;\r | |
908 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r | |
909 | RequestOpt = Request->Dhcp6.Option;\r | |
910 | DiscoverOpt = Discover->DhcpOptions;\r | |
911 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
912 | RequestLen = DiscoverLen;\r | |
913 | \r | |
914 | //\r | |
915 | // Find Server ID Option from ProxyOffer.\r | |
916 | //\r | |
917 | Option = PxeBcDhcp6SeekOption (\r | |
918 | ProxyOffer->Dhcp6.Option,\r | |
919 | ProxyOffer->Length - 4,\r | |
142c00c3 | 920 | DHCP6_OPT_SERVER_ID\r |
129b8b09 | 921 | );\r |
922 | if (Option == NULL) {\r | |
923 | return EFI_NOT_FOUND;\r | |
924 | }\r | |
925 | \r | |
926 | //\r | |
927 | // Add Server ID Option.\r | |
928 | //\r | |
929 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) Option)->OpLen);\r | |
930 | CopyMem (DiscoverOpt, Option, OpLen + 4);\r | |
931 | DiscoverOpt += (OpLen + 4);\r | |
932 | DiscoverLen += (OpLen + 4);\r | |
933 | \r | |
934 | while (RequestLen < Request->Length) {\r | |
935 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
936 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
937 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
938 | OpCode != EFI_DHCP6_IA_TYPE_TA &&\r | |
142c00c3 | 939 | OpCode != DHCP6_OPT_SERVER_ID\r |
129b8b09 | 940 | ) {\r |
941 | //\r | |
942 | // Copy all the options except IA option and Server ID\r | |
943 | //\r | |
944 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
945 | DiscoverOpt += (OpLen + 4);\r | |
946 | DiscoverLen += (OpLen + 4);\r | |
947 | }\r | |
948 | RequestOpt += (OpLen + 4);\r | |
949 | RequestLen += (OpLen + 4);\r | |
950 | }\r | |
951 | \r | |
952 | //\r | |
953 | // Update Elapsed option in the package \r | |
954 | //\r | |
955 | Option = PxeBcDhcp6SeekOption (\r | |
956 | Discover->DhcpOptions,\r | |
957 | (UINT32)(RequestLen - 4),\r | |
142c00c3 | 958 | DHCP6_OPT_ELAPSED_TIME\r |
129b8b09 | 959 | );\r |
960 | if (Option != NULL) {\r | |
961 | CalcElapsedTime (Private);\r | |
962 | WriteUnaligned16 ((UINT16*)(Option + 4), HTONS((UINT16) Private->ElapsedTime));\r | |
963 | } \r | |
964 | \r | |
965 | Status = PxeBc->UdpWrite (\r | |
966 | PxeBc,\r | |
967 | OpFlags,\r | |
968 | &Private->ServerIp,\r | |
969 | &DestPort,\r | |
970 | NULL,\r | |
971 | &Private->StationIp,\r | |
972 | &SrcPort,\r | |
973 | NULL,\r | |
974 | NULL,\r | |
975 | &DiscoverLen,\r | |
976 | (VOID *) Discover\r | |
977 | );\r | |
978 | \r | |
979 | if (EFI_ERROR (Status)) {\r | |
980 | return Status;\r | |
981 | }\r | |
982 | \r | |
983 | //\r | |
984 | // Cache the right PXE reply packet here, set valid flag later.\r | |
985 | // Especially for PXE discover packet, store it into mode data here.\r | |
986 | //\r | |
987 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
988 | ReadSize = (UINTN) Reply->Size;\r | |
989 | \r | |
990 | //\r | |
991 | // Start Udp6Read instance\r | |
992 | //\r | |
993 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
994 | if (EFI_ERROR (Status)) {\r | |
995 | return Status;\r | |
996 | }\r | |
997 | \r | |
998 | Status = PxeBc->UdpRead (\r | |
999 | PxeBc,\r | |
903d1fa9 FS |
1000 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
1001 | NULL,\r | |
129b8b09 | 1002 | &SrcPort,\r |
1003 | &Private->ServerIp,\r | |
1004 | &DestPort,\r | |
1005 | NULL,\r | |
1006 | NULL,\r | |
1007 | &ReadSize,\r | |
1008 | (VOID *) &Reply->Dhcp6\r | |
1009 | );\r | |
1010 | //\r | |
1011 | // Stop Udp6Read instance\r | |
1012 | //\r | |
1013 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
1014 | \r | |
1015 | if (EFI_ERROR (Status)) {\r | |
1016 | return Status;\r | |
1017 | }\r | |
1018 | \r | |
1019 | //\r | |
1020 | // Update length\r | |
1021 | //\r | |
1022 | Reply->Length = (UINT32) ReadSize;\r | |
1023 | \r | |
1024 | return EFI_SUCCESS;\r | |
1025 | }\r | |
1026 | \r | |
a3bcde70 HT |
1027 | \r |
1028 | /**\r | |
1029 | Retry to request bootfile name by the BINL offer.\r | |
1030 | \r | |
1031 | @param[in] Private The pointer to PxeBc private data.\r | |
1032 | @param[in] Index The received order of offer packets.\r | |
1033 | \r | |
1034 | @retval EFI_SUCCESS Successfully retried a request for the bootfile name.\r | |
1035 | @retval EFI_DEVICE_ERROR Failed to retry the bootfile name.\r | |
1036 | \r | |
1037 | **/\r | |
1038 | EFI_STATUS\r | |
1039 | PxeBcRetryDhcp6Binl (\r | |
1040 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1041 | IN UINT32 Index\r | |
1042 | )\r | |
1043 | {\r | |
1044 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1045 | PXEBC_DHCP6_PACKET_CACHE *Offer;\r | |
1046 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
a3bcde70 HT |
1047 | EFI_STATUS Status;\r |
1048 | \r | |
1049 | ASSERT (Index < PXEBC_OFFER_MAX_NUM);\r | |
1050 | ASSERT (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeDhcpBinl ||\r | |
1051 | Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl);\r | |
1052 | \r | |
1053 | Mode = Private->PxeBc.Mode;\r | |
1054 | Private->IsDoDiscover = FALSE;\r | |
1055 | Offer = &Private->OfferBuffer[Index].Dhcp6;\r | |
d40002ba | 1056 | if (Offer->OfferType == PxeOfferTypeDhcpBinl) {\r |
1057 | //\r | |
1058 | // There is no BootFileUrl option in dhcp6 offer, so use servers multi-cast address instead.\r | |
1059 | //\r | |
1060 | CopyMem (\r | |
1061 | &Private->ServerIp.v6,\r | |
1062 | &mAllDhcpRelayAndServersAddress,\r | |
1063 | sizeof (EFI_IPv6_ADDRESS)\r | |
1064 | );\r | |
1065 | } else {\r | |
1066 | ASSERT (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1067 | //\r | |
1068 | // Parse out the next server address from the last offer, and store it\r | |
1069 | //\r | |
1070 | Status = PxeBcExtractBootFileUrl (\r | |
6692d519 | 1071 | Private,\r |
d40002ba | 1072 | &Private->BootFileName,\r |
1073 | &Private->ServerIp.v6,\r | |
1074 | (CHAR8 *) (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->Data),\r | |
1075 | NTOHS (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->OpLen)\r | |
1076 | );\r | |
1077 | if (EFI_ERROR (Status)) {\r | |
1078 | return Status;\r | |
1079 | }\r | |
a3bcde70 HT |
1080 | }\r |
1081 | \r | |
1082 | //\r | |
1083 | // Retry Dhcp6Binl again for the bootfile, and the reply cached into Private->ProxyOffer.\r | |
1084 | //\r | |
129b8b09 | 1085 | Status = PxeBcRequestBootService (Private, Index);\r |
1086 | \r | |
a3bcde70 HT |
1087 | if (EFI_ERROR (Status)) {\r |
1088 | return Status;\r | |
1089 | }\r | |
1090 | \r | |
1091 | Cache6 = &Private->ProxyOffer.Dhcp6;\r | |
1092 | Status = PxeBcParseDhcp6Packet (Cache6);\r | |
1093 | if (EFI_ERROR (Status)) {\r | |
1094 | return Status;\r | |
1095 | }\r | |
1096 | \r | |
1097 | if (Cache6->OfferType != PxeOfferTypeProxyPxe10 &&\r | |
1098 | Cache6->OfferType != PxeOfferTypeProxyWfm11a &&\r | |
1099 | Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
1100 | //\r | |
1101 | // This BINL ack doesn't have discovery option set or multicast option set\r | |
1102 | // or bootfile name specified.\r | |
1103 | //\r | |
1104 | return EFI_DEVICE_ERROR;\r | |
1105 | }\r | |
1106 | \r | |
1107 | Mode->ProxyOfferReceived = TRUE;\r | |
1108 | CopyMem (\r | |
1109 | &Mode->ProxyOffer.Dhcpv6,\r | |
1110 | &Cache6->Packet.Offer.Dhcp6,\r | |
1111 | Cache6->Packet.Offer.Length\r | |
1112 | );\r | |
1113 | \r | |
1114 | return EFI_SUCCESS;\r | |
1115 | }\r | |
1116 | \r | |
1117 | \r | |
1118 | /**\r | |
1119 | Cache all the received DHCPv6 offers, and set OfferIndex and OfferCount.\r | |
1120 | \r | |
1121 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1122 | @param[in] RcvdOffer The pointer to the received offer packet.\r | |
1123 | \r | |
1124 | **/\r | |
1125 | VOID\r | |
1126 | PxeBcCacheDhcp6Offer (\r | |
1127 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1128 | IN EFI_DHCP6_PACKET *RcvdOffer\r | |
1129 | )\r | |
1130 | {\r | |
1131 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1132 | EFI_DHCP6_PACKET *Offer;\r | |
1133 | PXEBC_OFFER_TYPE OfferType;\r | |
1134 | \r | |
1135 | Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;\r | |
1136 | Offer = &Cache6->Packet.Offer;\r | |
1137 | \r | |
1138 | //\r | |
1139 | // Cache the content of DHCPv6 packet firstly.\r | |
1140 | //\r | |
1141 | PxeBcCacheDhcp6Packet (Offer, RcvdOffer);\r | |
1142 | \r | |
1143 | //\r | |
1144 | // Validate the DHCPv6 packet, and parse the options and offer type.\r | |
1145 | //\r | |
1146 | if (EFI_ERROR (PxeBcParseDhcp6Packet (Cache6))) {\r | |
1147 | return ;\r | |
1148 | }\r | |
1149 | \r | |
1150 | //\r | |
1151 | // Determine whether cache the current offer by type, and record OfferIndex and OfferCount.\r | |
1152 | //\r | |
1153 | OfferType = Cache6->OfferType;\r | |
1154 | ASSERT (OfferType < PxeOfferTypeMax);\r | |
1155 | ASSERT (Private->OfferCount[OfferType] < PXEBC_OFFER_MAX_NUM);\r | |
1156 | \r | |
1157 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1158 | //\r | |
1159 | // It's a proxy offer without yiaddr, including PXE10, WFM11a or BINL offer.\r | |
1160 | //\r | |
1161 | Private->IsProxyRecved = TRUE;\r | |
1162 | \r | |
1163 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1164 | //\r | |
1165 | // Cache all proxy BINL offers.\r | |
1166 | //\r | |
1167 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1168 | Private->OfferCount[OfferType]++;\r | |
1169 | } else if (Private->OfferCount[OfferType] > 0) {\r | |
1170 | //\r | |
1171 | // Only cache the first PXE10/WFM11a offer, and discard the others.\r | |
1172 | //\r | |
1173 | Private->OfferIndex[OfferType][0] = Private->OfferNum;\r | |
1174 | Private->OfferCount[OfferType] = 1;\r | |
1175 | } else {\r | |
1176 | return;\r | |
1177 | }\r | |
1178 | } else {\r | |
1179 | //\r | |
1180 | // It's a DHCPv6 offer with yiaddr, and cache them all.\r | |
1181 | //\r | |
1182 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1183 | Private->OfferCount[OfferType]++;\r | |
1184 | }\r | |
1185 | \r | |
1186 | Private->OfferNum++;\r | |
1187 | }\r | |
1188 | \r | |
1189 | \r | |
1190 | /**\r | |
1191 | Select an DHCPv6 offer, and record SelectIndex and SelectProxyType.\r | |
1192 | \r | |
1193 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1194 | \r | |
1195 | **/\r | |
1196 | VOID\r | |
1197 | PxeBcSelectDhcp6Offer (\r | |
1198 | IN PXEBC_PRIVATE_DATA *Private\r | |
1199 | )\r | |
1200 | {\r | |
1201 | UINT32 Index;\r | |
1202 | UINT32 OfferIndex;\r | |
1203 | PXEBC_OFFER_TYPE OfferType;\r | |
1204 | \r | |
1205 | Private->SelectIndex = 0;\r | |
1206 | \r | |
1207 | if (Private->IsOfferSorted) {\r | |
1208 | //\r | |
1209 | // Select offer by default policy.\r | |
1210 | //\r | |
1211 | if (Private->OfferCount[PxeOfferTypeDhcpPxe10] > 0) {\r | |
1212 | //\r | |
1213 | // 1. DhcpPxe10 offer\r | |
1214 | //\r | |
1215 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpPxe10][0] + 1;\r | |
1216 | \r | |
1217 | } else if (Private->OfferCount[PxeOfferTypeDhcpWfm11a] > 0) {\r | |
1218 | //\r | |
1219 | // 2. DhcpWfm11a offer\r | |
1220 | //\r | |
1221 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpWfm11a][0] + 1;\r | |
1222 | \r | |
1223 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1224 | Private->OfferCount[PxeOfferTypeProxyPxe10] > 0) {\r | |
1225 | //\r | |
1226 | // 3. DhcpOnly offer and ProxyPxe10 offer.\r | |
1227 | //\r | |
1228 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1229 | Private->SelectProxyType = PxeOfferTypeProxyPxe10;\r | |
1230 | \r | |
1231 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1232 | Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0) {\r | |
1233 | //\r | |
1234 | // 4. DhcpOnly offer and ProxyWfm11a offer.\r | |
1235 | //\r | |
1236 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1237 | Private->SelectProxyType = PxeOfferTypeProxyWfm11a;\r | |
1238 | \r | |
1239 | } else if (Private->OfferCount[PxeOfferTypeDhcpBinl] > 0) {\r | |
1240 | //\r | |
1241 | // 5. DhcpBinl offer.\r | |
1242 | //\r | |
1243 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpBinl][0] + 1;\r | |
1244 | \r | |
1245 | } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r | |
1246 | Private->OfferCount[PxeOfferTypeProxyBinl] > 0) {\r | |
1247 | //\r | |
1248 | // 6. DhcpOnly offer and ProxyBinl offer.\r | |
1249 | //\r | |
1250 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1251 | Private->SelectProxyType = PxeOfferTypeProxyBinl;\r | |
1252 | \r | |
1253 | } else {\r | |
1254 | //\r | |
1255 | // 7. DhcpOnly offer with bootfilename.\r | |
1256 | //\r | |
1257 | for (Index = 0; Index < Private->OfferCount[PxeOfferTypeDhcpOnly]; Index++) {\r | |
1258 | OfferIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][Index];\r | |
1259 | if (Private->OfferBuffer[OfferIndex].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL) {\r | |
1260 | Private->SelectIndex = OfferIndex + 1;\r | |
1261 | break;\r | |
1262 | }\r | |
1263 | }\r | |
1264 | }\r | |
1265 | } else {\r | |
1266 | //\r | |
1267 | // Select offer by received order.\r | |
1268 | //\r | |
1269 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1270 | \r | |
1271 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1272 | \r | |
1273 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1274 | //\r | |
1275 | // Skip proxy offers\r | |
1276 | //\r | |
1277 | continue;\r | |
1278 | }\r | |
1279 | \r | |
1280 | if (!Private->IsProxyRecved &&\r | |
1281 | OfferType == PxeOfferTypeDhcpOnly &&\r | |
1282 | Private->OfferBuffer[Index].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r | |
1283 | //\r | |
1284 | // Skip if DhcpOnly offer without any other proxy offers or bootfilename.\r | |
1285 | //\r | |
1286 | continue;\r | |
1287 | }\r | |
1288 | \r | |
1289 | Private->SelectIndex = Index + 1;\r | |
1290 | break;\r | |
1291 | }\r | |
1292 | }\r | |
1293 | }\r | |
1294 | \r | |
1295 | \r | |
1296 | /**\r | |
1297 | Handle the DHCPv6 offer packet.\r | |
1298 | \r | |
1299 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1300 | \r | |
1301 | @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.\r | |
1302 | @retval EFI_NO_RESPONSE No response to the following request packet.\r | |
1303 | \r | |
1304 | **/\r | |
1305 | EFI_STATUS\r | |
1306 | PxeBcHandleDhcp6Offer (\r | |
1307 | IN PXEBC_PRIVATE_DATA *Private\r | |
1308 | )\r | |
1309 | {\r | |
1310 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1311 | EFI_STATUS Status;\r | |
1312 | PXEBC_OFFER_TYPE OfferType;\r | |
1313 | UINT32 ProxyIndex;\r | |
1314 | UINT32 SelectIndex;\r | |
1315 | UINT32 Index;\r | |
1316 | \r | |
1317 | ASSERT (Private->SelectIndex > 0);\r | |
1318 | SelectIndex = (UINT32) (Private->SelectIndex - 1);\r | |
1319 | ASSERT (SelectIndex < PXEBC_OFFER_MAX_NUM);\r | |
1320 | Cache6 = &Private->OfferBuffer[SelectIndex].Dhcp6;\r | |
1321 | Status = EFI_SUCCESS;\r | |
1322 | \r | |
6692d519 ZL |
1323 | //\r |
1324 | // First try to cache DNS server address if DHCP6 offer provides.\r | |
1325 | //\r | |
1326 | if (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] != NULL) {\r | |
1327 | Private->DnsServer = AllocateZeroPool (NTOHS (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen));\r | |
1328 | CopyMem (Private->DnsServer, Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, sizeof (EFI_IPv6_ADDRESS));\r | |
1329 | }\r | |
1330 | \r | |
a3bcde70 HT |
1331 | if (Cache6->OfferType == PxeOfferTypeDhcpBinl) {\r |
1332 | //\r | |
1333 | // DhcpBinl offer is selected, so need try to request bootfilename by this offer.\r | |
1334 | //\r | |
1335 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, SelectIndex))) {\r | |
1336 | Status = EFI_NO_RESPONSE;\r | |
1337 | }\r | |
1338 | } else if (Cache6->OfferType == PxeOfferTypeDhcpOnly) {\r | |
1339 | \r | |
1340 | if (Private->IsProxyRecved) {\r | |
1341 | //\r | |
1342 | // DhcpOnly offer is selected, so need try to request bootfilename.\r | |
1343 | //\r | |
1344 | ProxyIndex = 0;\r | |
1345 | if (Private->IsOfferSorted) {\r | |
1346 | //\r | |
1347 | // The proxy offer should be determined if select by default policy.\r | |
1348 | // IsOfferSorted means all offers are labeled by OfferIndex.\r | |
1349 | //\r | |
1350 | ASSERT (Private->OfferCount[Private->SelectProxyType] > 0);\r | |
1351 | \r | |
1352 | if (Private->SelectProxyType == PxeOfferTypeProxyBinl) {\r | |
1353 | //\r | |
1354 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1355 | //\r | |
1356 | for (Index = 0; Index < Private->OfferCount[Private->SelectProxyType]; Index++) {\r | |
1357 | \r | |
1358 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][Index];\r | |
1359 | if (!EFI_ERROR (PxeBcRetryDhcp6Binl (Private, ProxyIndex))) {\r | |
1360 | break;\r | |
1361 | }\r | |
1362 | }\r | |
1363 | if (Index == Private->OfferCount[Private->SelectProxyType]) {\r | |
1364 | Status = EFI_NO_RESPONSE;\r | |
1365 | }\r | |
1366 | } else {\r | |
1367 | //\r | |
1368 | // For other proxy offers (pxe10 or wfm11a), only one is buffered.\r | |
1369 | //\r | |
1370 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][0];\r | |
1371 | }\r | |
1372 | } else {\r | |
1373 | //\r | |
1374 | // The proxy offer should not be determined if select by received order.\r | |
1375 | //\r | |
1376 | Status = EFI_NO_RESPONSE;\r | |
1377 | \r | |
1378 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
1379 | \r | |
1380 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r | |
1381 | \r | |
1382 | if (!IS_PROXY_OFFER (OfferType)) {\r | |
1383 | //\r | |
1384 | // Skip non proxy dhcp offers.\r | |
1385 | //\r | |
1386 | continue;\r | |
1387 | }\r | |
1388 | \r | |
1389 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1390 | //\r | |
1391 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1392 | //\r | |
1393 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, Index))) {\r | |
1394 | continue;\r | |
1395 | }\r | |
1396 | }\r | |
1397 | \r | |
1398 | Private->SelectProxyType = OfferType;\r | |
1399 | ProxyIndex = Index;\r | |
1400 | Status = EFI_SUCCESS;\r | |
1401 | break;\r | |
1402 | }\r | |
1403 | }\r | |
1404 | \r | |
1405 | if (!EFI_ERROR (Status) && Private->SelectProxyType != PxeOfferTypeProxyBinl) {\r | |
1406 | //\r | |
1407 | // Success to try to request by a ProxyPxe10 or ProxyWfm11a offer, copy and parse it.\r | |
1408 | //\r | |
1409 | PxeBcCopyDhcp6Proxy (Private, ProxyIndex);\r | |
1410 | }\r | |
1411 | } else {\r | |
1412 | //\r | |
1413 | // Othewise, the bootfilename must be included in DhcpOnly offer.\r | |
1414 | //\r | |
1415 | ASSERT (Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1416 | }\r | |
1417 | }\r | |
1418 | \r | |
1419 | if (!EFI_ERROR (Status)) {\r | |
1420 | //\r | |
1421 | // All PXE boot information is ready by now.\r | |
1422 | //\r | |
1423 | PxeBcCopyDhcp6Ack (Private, &Private->DhcpAck.Dhcp6.Packet.Ack, TRUE);\r | |
1424 | Private->PxeBc.Mode->DhcpDiscoverValid = TRUE;\r | |
1425 | }\r | |
1426 | \r | |
1427 | return Status;\r | |
1428 | }\r | |
1429 | \r | |
1430 | \r | |
1431 | /**\r | |
1432 | Unregister the address by Ip6Config protocol.\r | |
1433 | \r | |
1434 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1435 | \r | |
1436 | **/\r | |
1437 | VOID\r | |
1438 | PxeBcUnregisterIp6Address (\r | |
1439 | IN PXEBC_PRIVATE_DATA *Private\r | |
1440 | )\r | |
1441 | {\r | |
1442 | if (Private->Ip6Policy != PXEBC_IP6_POLICY_MAX) {\r | |
1443 | //\r | |
1444 | // PXE driver change the policy of IP6 driver, it's a chance to recover.\r | |
1445 | // Keep the point and there is no enough requirements to do recovery.\r | |
1446 | //\r | |
1447 | }\r | |
1448 | }\r | |
1449 | \r | |
ae97201c FS |
1450 | /**\r |
1451 | Check whether IP driver could route the message which will be sent to ServerIp address.\r | |
1452 | \r | |
1453 | This function will check the IP6 route table every 1 seconds until specified timeout is expired, if a valid\r | |
1454 | route is found in IP6 route table, the address will be filed in GatewayAddr and return.\r | |
1455 | \r | |
1456 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1457 | @param[in] TimeOutInSecond Timeout value in seconds.\r | |
1458 | @param[out] GatewayAddr Pointer to store the gateway IP address.\r | |
1459 | \r | |
1460 | @retval EFI_SUCCESS Found a valid gateway address successfully.\r | |
1461 | @retval EFI_TIMEOUT The operation is time out.\r | |
1462 | @retval Other Unexpect error happened.\r | |
1463 | \r | |
1464 | **/\r | |
1465 | EFI_STATUS\r | |
1466 | PxeBcCheckRouteTable (\r | |
1467 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1468 | IN UINTN TimeOutInSecond,\r | |
1469 | OUT EFI_IPv6_ADDRESS *GatewayAddr\r | |
1470 | )\r | |
1471 | {\r | |
1472 | EFI_STATUS Status;\r | |
1473 | EFI_IP6_PROTOCOL *Ip6;\r | |
1474 | EFI_IP6_MODE_DATA Ip6ModeData;\r | |
1475 | UINTN Index;\r | |
1476 | EFI_EVENT TimeOutEvt;\r | |
1477 | UINTN RetryCount;\r | |
1478 | BOOLEAN GatewayIsFound;\r | |
1479 | \r | |
1480 | ASSERT (GatewayAddr != NULL);\r | |
1481 | ASSERT (Private != NULL);\r | |
1482 | \r | |
1483 | Ip6 = Private->Ip6;\r | |
1484 | GatewayIsFound = FALSE;\r | |
1485 | RetryCount = 0;\r | |
1486 | TimeOutEvt = NULL;\r | |
1487 | ZeroMem (GatewayAddr, sizeof (EFI_IPv6_ADDRESS));\r | |
1488 | \r | |
1489 | while (TRUE) {\r | |
1490 | Status = Ip6->GetModeData (Ip6, &Ip6ModeData, NULL, NULL);\r | |
1491 | if (EFI_ERROR (Status)) {\r | |
1492 | goto ON_EXIT;\r | |
1493 | }\r | |
1494 | \r | |
1495 | //\r | |
07f986f1 | 1496 | // Find out the gateway address which can route the message which send to ServerIp.\r |
ae97201c FS |
1497 | //\r |
1498 | for (Index = 0; Index < Ip6ModeData.RouteCount; Index++) {\r | |
1499 | if (NetIp6IsNetEqual (&Private->ServerIp.v6, &Ip6ModeData.RouteTable[Index].Destination, Ip6ModeData.RouteTable[Index].PrefixLength)) {\r | |
1500 | IP6_COPY_ADDRESS (GatewayAddr, &Ip6ModeData.RouteTable[Index].Gateway);\r | |
1501 | GatewayIsFound = TRUE;\r | |
1502 | break;\r | |
1503 | }\r | |
1504 | }\r | |
1505 | \r | |
1506 | if (Ip6ModeData.AddressList != NULL) {\r | |
1507 | FreePool (Ip6ModeData.AddressList);\r | |
1508 | }\r | |
1509 | if (Ip6ModeData.GroupTable != NULL) {\r | |
1510 | FreePool (Ip6ModeData.GroupTable);\r | |
1511 | }\r | |
1512 | if (Ip6ModeData.RouteTable != NULL) {\r | |
1513 | FreePool (Ip6ModeData.RouteTable);\r | |
1514 | }\r | |
1515 | if (Ip6ModeData.NeighborCache != NULL) {\r | |
1516 | FreePool (Ip6ModeData.NeighborCache);\r | |
1517 | }\r | |
1518 | if (Ip6ModeData.PrefixTable != NULL) {\r | |
1519 | FreePool (Ip6ModeData.PrefixTable);\r | |
1520 | }\r | |
1521 | if (Ip6ModeData.IcmpTypeList != NULL) {\r | |
1522 | FreePool (Ip6ModeData.IcmpTypeList);\r | |
1523 | }\r | |
1524 | \r | |
1525 | if (GatewayIsFound || RetryCount == TimeOutInSecond) {\r | |
1526 | break;\r | |
1527 | }\r | |
1528 | \r | |
1529 | RetryCount++;\r | |
1530 | \r | |
1531 | //\r | |
1532 | // Delay 1 second then recheck it again.\r | |
1533 | //\r | |
1534 | if (TimeOutEvt == NULL) {\r | |
1535 | Status = gBS->CreateEvent (\r | |
1536 | EVT_TIMER,\r | |
1537 | TPL_CALLBACK,\r | |
1538 | NULL,\r | |
1539 | NULL,\r | |
1540 | &TimeOutEvt\r | |
1541 | );\r | |
1542 | if (EFI_ERROR (Status)) {\r | |
1543 | goto ON_EXIT;\r | |
1544 | }\r | |
1545 | }\r | |
1546 | \r | |
1547 | Status = gBS->SetTimer (TimeOutEvt, TimerRelative, TICKS_PER_SECOND);\r | |
1548 | if (EFI_ERROR (Status)) {\r | |
1549 | goto ON_EXIT;\r | |
1550 | }\r | |
1551 | while (EFI_ERROR (gBS->CheckEvent (TimeOutEvt))) {\r | |
1552 | Ip6->Poll (Ip6);\r | |
1553 | }\r | |
1554 | }\r | |
1555 | \r | |
1556 | ON_EXIT:\r | |
1557 | if (TimeOutEvt != NULL) {\r | |
1558 | gBS->CloseEvent (TimeOutEvt);\r | |
1559 | }\r | |
1560 | \r | |
1561 | if (GatewayIsFound) {\r | |
1562 | Status = EFI_SUCCESS;\r | |
1563 | } else if (RetryCount == TimeOutInSecond) {\r | |
1564 | Status = EFI_TIMEOUT;\r | |
1565 | }\r | |
1566 | \r | |
1567 | return Status; \r | |
1568 | }\r | |
a3bcde70 HT |
1569 | \r |
1570 | /**\r | |
ae97201c | 1571 | Register the ready station address and gateway by Ip6Config protocol.\r |
a3bcde70 HT |
1572 | \r |
1573 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1574 | @param[in] Address The pointer to the ready address.\r | |
1575 | \r | |
1576 | @retval EFI_SUCCESS Registered the address succesfully.\r | |
1577 | @retval Others Failed to register the address.\r | |
1578 | \r | |
1579 | **/\r | |
1580 | EFI_STATUS\r | |
1581 | PxeBcRegisterIp6Address (\r | |
1582 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1583 | IN EFI_IPv6_ADDRESS *Address\r | |
1584 | )\r | |
1585 | {\r | |
1586 | EFI_IP6_PROTOCOL *Ip6;\r | |
1587 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1588 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1589 | EFI_IP6_CONFIG_MANUAL_ADDRESS CfgAddr;\r | |
ae97201c | 1590 | EFI_IPv6_ADDRESS GatewayAddr;\r |
a3bcde70 | 1591 | UINTN DataSize;\r |
a3bcde70 HT |
1592 | EFI_EVENT MappedEvt;\r |
1593 | EFI_STATUS Status;\r | |
07f986f1 | 1594 | BOOLEAN NoGateway;\r |
bf9f7cea FS |
1595 | EFI_IPv6_ADDRESS *Ip6Addr;\r |
1596 | UINTN Index;\r | |
a3bcde70 HT |
1597 | \r |
1598 | Status = EFI_SUCCESS;\r | |
a3bcde70 | 1599 | MappedEvt = NULL;\r |
bf9f7cea | 1600 | Ip6Addr = NULL;\r |
a3bcde70 HT |
1601 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r |
1602 | Ip6Cfg = Private->Ip6Cfg;\r | |
1603 | Ip6 = Private->Ip6;\r | |
07f986f1 | 1604 | NoGateway = FALSE;\r |
a3bcde70 HT |
1605 | \r |
1606 | ZeroMem (&CfgAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));\r | |
1607 | CopyMem (&CfgAddr.Address, Address, sizeof (EFI_IPv6_ADDRESS));\r | |
1608 | \r | |
ae97201c FS |
1609 | Status = Ip6->Configure (Ip6, &Private->Ip6CfgData);\r |
1610 | if (EFI_ERROR (Status)) {\r | |
1611 | goto ON_EXIT;\r | |
1612 | }\r | |
1613 | \r | |
a3bcde70 | 1614 | //\r |
ae97201c | 1615 | // Retrieve the gateway address from IP6 route table.\r |
a3bcde70 | 1616 | //\r |
ae97201c | 1617 | Status = PxeBcCheckRouteTable (Private, PXEBC_IP6_ROUTE_TABLE_TIMEOUT, &GatewayAddr);\r |
a3bcde70 | 1618 | if (EFI_ERROR (Status)) {\r |
07f986f1 | 1619 | NoGateway = TRUE;\r |
a3bcde70 | 1620 | }\r |
ae97201c | 1621 | \r |
a3bcde70 HT |
1622 | //\r |
1623 | // There is no channel between IP6 and PXE driver about address setting,\r | |
1624 | // so it has to set the new address by Ip6ConfigProtocol manually.\r | |
1625 | //\r | |
1626 | Policy = Ip6ConfigPolicyManual;\r | |
1627 | Status = Ip6Cfg->SetData (\r | |
1628 | Ip6Cfg,\r | |
1629 | Ip6ConfigDataTypePolicy,\r | |
1630 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1631 | &Policy\r | |
1632 | );\r | |
1633 | if (EFI_ERROR (Status)) {\r | |
1634 | //\r | |
1635 | // There is no need to recover later.\r | |
1636 | //\r | |
1637 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1638 | goto ON_EXIT;\r | |
1639 | }\r | |
1640 | \r | |
a3bcde70 HT |
1641 | //\r |
1642 | // Create a notify event to set address flag when DAD if IP6 driver succeeded.\r | |
1643 | //\r | |
1644 | Status = gBS->CreateEvent (\r | |
1645 | EVT_NOTIFY_SIGNAL,\r | |
1646 | TPL_NOTIFY,\r | |
1647 | PxeBcCommonNotify,\r | |
1648 | &Private->IsAddressOk,\r | |
1649 | &MappedEvt\r | |
1650 | );\r | |
1651 | if (EFI_ERROR (Status)) {\r | |
1652 | goto ON_EXIT;\r | |
1653 | }\r | |
1654 | \r | |
bf9f7cea | 1655 | Private->IsAddressOk = FALSE;\r |
a3bcde70 HT |
1656 | Status = Ip6Cfg->RegisterDataNotify (\r |
1657 | Ip6Cfg,\r | |
1658 | Ip6ConfigDataTypeManualAddress,\r | |
1659 | MappedEvt\r | |
1660 | );\r | |
1661 | if (EFI_ERROR(Status)) {\r | |
1662 | goto ON_EXIT;\r | |
1663 | }\r | |
1664 | \r | |
1665 | Status = Ip6Cfg->SetData (\r | |
1666 | Ip6Cfg,\r | |
1667 | Ip6ConfigDataTypeManualAddress,\r | |
1668 | sizeof(EFI_IP6_CONFIG_MANUAL_ADDRESS),\r | |
1669 | &CfgAddr\r | |
1670 | );\r | |
1671 | if (EFI_ERROR(Status) && Status != EFI_NOT_READY) {\r | |
1672 | goto ON_EXIT;\r | |
bf9f7cea FS |
1673 | } else if (Status == EFI_NOT_READY) {\r |
1674 | //\r | |
1675 | // Poll the network until the asynchronous process is finished.\r | |
1676 | //\r | |
1677 | while (!Private->IsAddressOk) {\r | |
1678 | Ip6->Poll (Ip6);\r | |
1679 | }\r | |
1680 | //\r | |
1681 | // Check whether the IP6 address setting is successed.\r | |
1682 | //\r | |
1683 | DataSize = 0;\r | |
1684 | Status = Ip6Cfg->GetData (\r | |
1685 | Ip6Cfg,\r | |
1686 | Ip6ConfigDataTypeManualAddress,\r | |
1687 | &DataSize,\r | |
1688 | NULL\r | |
1689 | );\r | |
1690 | if (Status != EFI_BUFFER_TOO_SMALL || DataSize == 0) {\r | |
1691 | Status = EFI_DEVICE_ERROR;\r | |
1692 | goto ON_EXIT;\r | |
1693 | }\r | |
a3bcde70 | 1694 | \r |
bf9f7cea FS |
1695 | Ip6Addr = AllocatePool (DataSize);\r |
1696 | if (Ip6Addr == NULL) {\r | |
1697 | return EFI_OUT_OF_RESOURCES;\r | |
1698 | }\r | |
1699 | Status = Ip6Cfg->GetData (\r | |
1700 | Ip6Cfg,\r | |
1701 | Ip6ConfigDataTypeManualAddress,\r | |
1702 | &DataSize,\r | |
1703 | (VOID*) Ip6Addr\r | |
1704 | );\r | |
1705 | if (EFI_ERROR (Status)) {\r | |
1706 | Status = EFI_DEVICE_ERROR;\r | |
1707 | goto ON_EXIT;\r | |
1708 | }\r | |
a3bcde70 | 1709 | \r |
bf9f7cea FS |
1710 | for (Index = 0; Index < DataSize / sizeof (EFI_IPv6_ADDRESS); Index++) {\r |
1711 | if (CompareMem (Ip6Addr + Index, Address, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
1712 | break;\r | |
1713 | }\r | |
1714 | }\r | |
1715 | if (Index == DataSize / sizeof (EFI_IPv6_ADDRESS)) {\r | |
1716 | Status = EFI_ABORTED;\r | |
1717 | goto ON_EXIT;\r | |
a3bcde70 HT |
1718 | }\r |
1719 | }\r | |
bf9f7cea | 1720 | \r |
ae97201c FS |
1721 | //\r |
1722 | // Set the default gateway address back if needed.\r | |
1723 | //\r | |
07f986f1 | 1724 | if (!NoGateway && !NetIp6IsUnspecifiedAddr (&GatewayAddr)) {\r |
ae97201c FS |
1725 | Status = Ip6Cfg->SetData (\r |
1726 | Ip6Cfg,\r | |
1727 | Ip6ConfigDataTypeGateway,\r | |
1728 | sizeof (EFI_IPv6_ADDRESS),\r | |
1729 | &GatewayAddr\r | |
1730 | );\r | |
1731 | if (EFI_ERROR (Status)) {\r | |
1732 | goto ON_EXIT;\r | |
1733 | }\r | |
1734 | }\r | |
1735 | \r | |
a3bcde70 HT |
1736 | ON_EXIT:\r |
1737 | if (MappedEvt != NULL) {\r | |
1738 | Ip6Cfg->UnregisterDataNotify (\r | |
1739 | Ip6Cfg,\r | |
1740 | Ip6ConfigDataTypeManualAddress,\r | |
1741 | MappedEvt\r | |
1742 | );\r | |
1743 | gBS->CloseEvent (MappedEvt);\r | |
1744 | }\r | |
bf9f7cea FS |
1745 | if (Ip6Addr != NULL) {\r |
1746 | FreePool (Ip6Addr);\r | |
a3bcde70 HT |
1747 | }\r |
1748 | return Status;\r | |
1749 | }\r | |
1750 | \r | |
ae97201c FS |
1751 | /**\r |
1752 | Set the IP6 policy to Automatic.\r | |
1753 | \r | |
1754 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1755 | \r | |
1756 | @retval EFI_SUCCESS Switch the IP policy succesfully.\r | |
1757 | @retval Others Unexpect error happened.\r | |
1758 | \r | |
1759 | **/\r | |
1760 | EFI_STATUS\r | |
1761 | PxeBcSetIp6Policy (\r | |
1762 | IN PXEBC_PRIVATE_DATA *Private\r | |
1763 | )\r | |
1764 | {\r | |
1765 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1766 | EFI_STATUS Status;\r | |
1767 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1768 | UINTN DataSize;\r | |
1769 | \r | |
1770 | Ip6Cfg = Private->Ip6Cfg;\r | |
1771 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r | |
1772 | \r | |
1773 | //\r | |
1774 | // Get and store the current policy of IP6 driver.\r | |
1775 | //\r | |
1776 | Status = Ip6Cfg->GetData (\r | |
1777 | Ip6Cfg,\r | |
1778 | Ip6ConfigDataTypePolicy,\r | |
1779 | &DataSize,\r | |
1780 | &Private->Ip6Policy\r | |
1781 | );\r | |
1782 | if (EFI_ERROR (Status)) {\r | |
1783 | return Status;\r | |
1784 | }\r | |
1785 | \r | |
1786 | if (Private->Ip6Policy == Ip6ConfigPolicyManual) {\r | |
1787 | Policy = Ip6ConfigPolicyAutomatic;\r | |
1788 | Status = Ip6Cfg->SetData (\r | |
1789 | Ip6Cfg,\r | |
1790 | Ip6ConfigDataTypePolicy,\r | |
1791 | sizeof(EFI_IP6_CONFIG_POLICY),\r | |
1792 | &Policy\r | |
1793 | );\r | |
1794 | if (EFI_ERROR (Status)) {\r | |
1795 | //\r | |
1796 | // There is no need to recover later.\r | |
1797 | //\r | |
1798 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1799 | }\r | |
1800 | }\r | |
1801 | \r | |
1802 | return Status;\r | |
1803 | }\r | |
1804 | \r | |
1805 | /**\r | |
1806 | This function will register the station IP address and flush IP instance to start using the new IP address.\r | |
1807 | \r | |
1808 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1809 | \r | |
1810 | @retval EFI_SUCCESS The new IP address has been configured successfully.\r | |
1811 | @retval Others Failed to configure the address.\r | |
1812 | \r | |
1813 | **/\r | |
1814 | EFI_STATUS\r | |
1815 | PxeBcSetIp6Address (\r | |
1816 | IN PXEBC_PRIVATE_DATA *Private\r | |
1817 | )\r | |
1818 | {\r | |
1819 | EFI_STATUS Status;\r | |
1820 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
1821 | \r | |
1822 | Dhcp6 = Private->Dhcp6;\r | |
1823 | \r | |
1824 | CopyMem (&Private->StationIp.v6, &Private->TmpStationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1825 | CopyMem (&Private->PxeBc.Mode->StationIp.v6, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1826 | \r | |
1827 | Status = PxeBcRegisterIp6Address (Private, &Private->StationIp.v6);\r | |
1828 | if (EFI_ERROR (Status)) {\r | |
1829 | Dhcp6->Stop (Dhcp6);\r | |
1830 | return Status;\r | |
1831 | }\r | |
1832 | \r | |
1833 | Status = PxeBcFlushStationIp (Private, &Private->StationIp, NULL);\r | |
1834 | if (EFI_ERROR (Status)) {\r | |
1835 | PxeBcUnregisterIp6Address (Private);\r | |
1836 | Dhcp6->Stop (Dhcp6);\r | |
1837 | return Status;\r | |
1838 | }\r | |
1839 | \r | |
1840 | AsciiPrint ("\n Station IP address is ");\r | |
1841 | PxeBcShowIp6Addr (&Private->StationIp.v6);\r | |
1842 | \r | |
1843 | return EFI_SUCCESS;\r | |
1844 | }\r | |
a3bcde70 HT |
1845 | \r |
1846 | /**\r | |
1847 | EFI_DHCP6_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol driver\r | |
1848 | to intercept events that occurred in the configuration process.\r | |
1849 | \r | |
1850 | @param[in] This The pointer to the EFI DHCPv6 Protocol.\r | |
1851 | @param[in] Context The pointer to the context set by EFI_DHCP6_PROTOCOL.Configure().\r | |
1852 | @param[in] CurrentState The current operational state of the EFI DHCPv Protocol driver.\r | |
1853 | @param[in] Dhcp6Event The event that occurs in the current state, which usually means a\r | |
1854 | state transition.\r | |
1855 | @param[in] Packet The DHCPv6 packet that is going to be sent or was already received.\r | |
1856 | @param[out] NewPacket The packet that is used to replace the Packet above.\r | |
1857 | \r | |
1858 | @retval EFI_SUCCESS Told the EFI DHCPv6 Protocol driver to continue the DHCP process.\r | |
1859 | @retval EFI_NOT_READY Only used in the Dhcp6Selecting state. The EFI DHCPv6 Protocol\r | |
1860 | driver will continue to wait for more packets.\r | |
1861 | @retval EFI_ABORTED Told the EFI DHCPv6 Protocol driver to abort the current process.\r | |
1862 | \r | |
1863 | **/\r | |
1864 | EFI_STATUS\r | |
1865 | EFIAPI\r | |
1866 | PxeBcDhcp6CallBack (\r | |
1867 | IN EFI_DHCP6_PROTOCOL *This,\r | |
1868 | IN VOID *Context,\r | |
1869 | IN EFI_DHCP6_STATE CurrentState,\r | |
1870 | IN EFI_DHCP6_EVENT Dhcp6Event,\r | |
1871 | IN EFI_DHCP6_PACKET *Packet,\r | |
1872 | OUT EFI_DHCP6_PACKET **NewPacket OPTIONAL\r | |
1873 | )\r | |
1874 | {\r | |
1875 | PXEBC_PRIVATE_DATA *Private;\r | |
1876 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1877 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r | |
1878 | EFI_DHCP6_PACKET *SelectAd;\r | |
1879 | EFI_STATUS Status;\r | |
1880 | BOOLEAN Received;\r | |
1881 | \r | |
1882 | if ((Dhcp6Event != Dhcp6RcvdAdvertise) &&\r | |
1883 | (Dhcp6Event != Dhcp6SelectAdvertise) &&\r | |
1884 | (Dhcp6Event != Dhcp6SendSolicit) &&\r | |
1885 | (Dhcp6Event != Dhcp6SendRequest) &&\r | |
1886 | (Dhcp6Event != Dhcp6RcvdReply)) {\r | |
1887 | return EFI_SUCCESS;\r | |
1888 | }\r | |
1889 | \r | |
1890 | ASSERT (Packet != NULL);\r | |
1891 | \r | |
1892 | Private = (PXEBC_PRIVATE_DATA *) Context;\r | |
1893 | Mode = Private->PxeBc.Mode;\r | |
1894 | Callback = Private->PxeBcCallback;\r | |
1895 | \r | |
1896 | //\r | |
1897 | // Callback to user when any traffic ocurred if has.\r | |
1898 | //\r | |
1899 | if (Dhcp6Event != Dhcp6SelectAdvertise && Callback != NULL) {\r | |
1900 | Received = (BOOLEAN) (Dhcp6Event == Dhcp6RcvdAdvertise || Dhcp6Event == Dhcp6RcvdReply);\r | |
1901 | Status = Callback->Callback (\r | |
1902 | Callback,\r | |
1903 | Private->Function,\r | |
1904 | Received,\r | |
1905 | Packet->Length,\r | |
1906 | (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp6\r | |
1907 | );\r | |
1908 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r | |
1909 | return EFI_ABORTED;\r | |
1910 | }\r | |
1911 | }\r | |
1912 | \r | |
1913 | Status = EFI_SUCCESS;\r | |
1914 | \r | |
1915 | switch (Dhcp6Event) {\r | |
1916 | \r | |
1917 | case Dhcp6SendSolicit:\r | |
129b8b09 | 1918 | //\r |
1919 | // Record the first Solicate msg time\r | |
1920 | //\r | |
1921 | if (Private->SolicitTimes == 0) {\r | |
1922 | CalcElapsedTime (Private);\r | |
1923 | Private->SolicitTimes++;\r | |
1924 | }\r | |
a3bcde70 HT |
1925 | //\r |
1926 | // Cache the dhcp discover packet to mode data directly.\r | |
1927 | //\r | |
1928 | CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp6, Packet->Length);\r | |
1929 | break;\r | |
1930 | \r | |
1931 | case Dhcp6RcvdAdvertise:\r | |
1932 | Status = EFI_NOT_READY;\r | |
1933 | if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {\r | |
1934 | //\r | |
1935 | // Cache the dhcp offers to OfferBuffer[] for select later, and record\r | |
1936 | // the OfferIndex and OfferCount.\r | |
1937 | //\r | |
1938 | PxeBcCacheDhcp6Offer (Private, Packet);\r | |
1939 | }\r | |
1940 | break;\r | |
1941 | \r | |
1942 | case Dhcp6SendRequest:\r | |
1943 | //\r | |
1944 | // Store the request packet as seed packet for discover.\r | |
1945 | //\r | |
1946 | if (Private->Dhcp6Request != NULL) {\r | |
1947 | FreePool (Private->Dhcp6Request);\r | |
1948 | }\r | |
1949 | Private->Dhcp6Request = AllocateZeroPool (Packet->Size);\r | |
1950 | if (Private->Dhcp6Request != NULL) {\r | |
1951 | CopyMem (Private->Dhcp6Request, Packet, Packet->Size);\r | |
1952 | }\r | |
1953 | break;\r | |
1954 | \r | |
1955 | case Dhcp6SelectAdvertise:\r | |
1956 | //\r | |
1957 | // Select offer by the default policy or by order, and record the SelectIndex\r | |
1958 | // and SelectProxyType.\r | |
1959 | //\r | |
1960 | PxeBcSelectDhcp6Offer (Private);\r | |
1961 | \r | |
1962 | if (Private->SelectIndex == 0) {\r | |
1963 | Status = EFI_ABORTED;\r | |
1964 | } else {\r | |
1965 | ASSERT (NewPacket != NULL);\r | |
1966 | SelectAd = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp6.Packet.Offer;\r | |
1967 | *NewPacket = AllocateZeroPool (SelectAd->Size);\r | |
1968 | ASSERT (*NewPacket != NULL);\r | |
1969 | CopyMem (*NewPacket, SelectAd, SelectAd->Size);\r | |
1970 | }\r | |
1971 | break;\r | |
1972 | \r | |
1973 | case Dhcp6RcvdReply:\r | |
1974 | //\r | |
1975 | // Cache the dhcp ack to Private->Dhcp6Ack, but it's not the final ack in mode data\r | |
1976 | // without verification.\r | |
1977 | //\r | |
1978 | ASSERT (Private->SelectIndex != 0);\r | |
1979 | PxeBcCopyDhcp6Ack (Private, Packet, FALSE);\r | |
1980 | break;\r | |
1981 | \r | |
1982 | default:\r | |
1983 | ASSERT (0);\r | |
1984 | }\r | |
1985 | \r | |
1986 | return Status;\r | |
1987 | }\r | |
1988 | \r | |
1989 | \r | |
1990 | /**\r | |
1991 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
1992 | \r | |
1993 | @param[in] Private The pointer to PxeBc private data.\r | |
1994 | @param[in] Type PxeBc option boot item type.\r | |
1995 | @param[in] Layer The pointer to option boot item layer.\r | |
1996 | @param[in] UseBis Use BIS or not.\r | |
1997 | @param[in] DestIp The pointer to the server address.\r | |
1998 | \r | |
1999 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
2000 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
2001 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
2002 | @retval Others Failed to discover the boot file.\r | |
2003 | \r | |
2004 | **/\r | |
2005 | EFI_STATUS\r | |
2006 | PxeBcDhcp6Discover (\r | |
2007 | IN PXEBC_PRIVATE_DATA *Private,\r | |
2008 | IN UINT16 Type,\r | |
2009 | IN UINT16 *Layer,\r | |
2010 | IN BOOLEAN UseBis,\r | |
2011 | IN EFI_IP_ADDRESS *DestIp\r | |
2012 | )\r | |
2013 | {\r | |
2014 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r | |
2015 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
2016 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
2017 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r | |
2018 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
2019 | UINTN DiscoverLen;\r | |
2020 | EFI_DHCP6_PACKET *Request;\r | |
2021 | UINTN RequestLen;\r | |
2022 | EFI_DHCP6_PACKET *Reply;\r | |
2023 | UINT8 *RequestOpt;\r | |
2024 | UINT8 *DiscoverOpt;\r | |
2025 | UINTN ReadSize;\r | |
a3bcde70 HT |
2026 | UINT16 OpCode;\r |
2027 | UINT16 OpLen;\r | |
2028 | UINT32 Xid;\r | |
2029 | EFI_STATUS Status;\r | |
2030 | \r | |
2031 | PxeBc = &Private->PxeBc;\r | |
2032 | Mode = PxeBc->Mode;\r | |
2033 | Request = Private->Dhcp6Request;\r | |
2034 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
2035 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
a3bcde70 HT |
2036 | \r |
2037 | if (!UseBis && Layer != NULL) {\r | |
2038 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r | |
2039 | }\r | |
2040 | \r | |
2041 | if (Request == NULL) {\r | |
2042 | return EFI_DEVICE_ERROR;\r | |
2043 | }\r | |
2044 | \r | |
2045 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
2046 | if (Discover == NULL) {\r | |
2047 | return EFI_OUT_OF_RESOURCES;\r | |
2048 | }\r | |
2049 | \r | |
2050 | //\r | |
2051 | // Build the discover packet by the cached request packet before.\r | |
2052 | //\r | |
2053 | Xid = NET_RANDOM (NetRandomInitSeed ());\r | |
2054 | Discover->TransactionId = HTONL (Xid);\r | |
2055 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r | |
2056 | RequestOpt = Request->Dhcp6.Option;\r | |
2057 | DiscoverOpt = Discover->DhcpOptions;\r | |
2058 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
2059 | RequestLen = DiscoverLen;\r | |
2060 | \r | |
2061 | while (RequestLen < Request->Length) {\r | |
2062 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpCode);\r | |
2063 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);\r | |
2064 | if (OpCode != EFI_DHCP6_IA_TYPE_NA &&\r | |
2065 | OpCode != EFI_DHCP6_IA_TYPE_TA) {\r | |
2066 | //\r | |
2067 | // Copy all the options except IA option.\r | |
2068 | //\r | |
2069 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
2070 | DiscoverOpt += (OpLen + 4);\r | |
2071 | DiscoverLen += (OpLen + 4);\r | |
2072 | }\r | |
2073 | RequestOpt += (OpLen + 4);\r | |
2074 | RequestLen += (OpLen + 4);\r | |
2075 | }\r | |
2076 | \r | |
2077 | Status = PxeBc->UdpWrite (\r | |
2078 | PxeBc,\r | |
903d1fa9 | 2079 | 0,\r |
a3bcde70 HT |
2080 | &Private->ServerIp,\r |
2081 | &DestPort,\r | |
2082 | NULL,\r | |
2083 | &Private->StationIp,\r | |
2084 | &SrcPort,\r | |
2085 | NULL,\r | |
2086 | NULL,\r | |
2087 | &DiscoverLen,\r | |
2088 | (VOID *) Discover\r | |
2089 | );\r | |
2090 | if (EFI_ERROR (Status)) {\r | |
2091 | return Status;\r | |
2092 | }\r | |
2093 | \r | |
2094 | //\r | |
2095 | // Cache the right PXE reply packet here, set valid flag later.\r | |
2096 | // Especially for PXE discover packet, store it into mode data here.\r | |
2097 | //\r | |
2098 | if (Private->IsDoDiscover) {\r | |
2099 | CopyMem (&Mode->PxeDiscover.Dhcpv6, Discover, DiscoverLen);\r | |
2100 | Reply = &Private->PxeReply.Dhcp6.Packet.Ack;\r | |
2101 | } else {\r | |
2102 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
2103 | }\r | |
2104 | ReadSize = (UINTN) Reply->Size;\r | |
2105 | \r | |
357af285 | 2106 | //\r |
2107 | // Start Udp6Read instance\r | |
2108 | //\r | |
2109 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
2110 | if (EFI_ERROR (Status)) {\r | |
2111 | return Status;\r | |
2112 | }\r | |
2113 | \r | |
a3bcde70 HT |
2114 | Status = PxeBc->UdpRead (\r |
2115 | PxeBc,\r | |
903d1fa9 FS |
2116 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
2117 | NULL,\r | |
a3bcde70 HT |
2118 | &SrcPort,\r |
2119 | &Private->ServerIp,\r | |
2120 | &DestPort,\r | |
2121 | NULL,\r | |
2122 | NULL,\r | |
2123 | &ReadSize,\r | |
2124 | (VOID *) &Reply->Dhcp6\r | |
2125 | );\r | |
357af285 | 2126 | //\r |
2127 | // Stop Udp6Read instance\r | |
2128 | //\r | |
2129 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
a3bcde70 HT |
2130 | if (EFI_ERROR (Status)) {\r |
2131 | return Status;\r | |
2132 | }\r | |
2133 | \r | |
2134 | return EFI_SUCCESS;\r | |
2135 | }\r | |
2136 | \r | |
2137 | \r | |
2138 | /**\r | |
2139 | Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.\r | |
2140 | \r | |
2141 | @param[in] Private The pointer to PxeBc private data.\r | |
2142 | @param[in] Dhcp6 The pointer to the EFI_DHCP6_PROTOCOL\r | |
2143 | \r | |
2144 | @retval EFI_SUCCESS The S.A.R.R. process successfully finished.\r | |
2145 | @retval Others Failed to finish the S.A.R.R. process.\r | |
2146 | \r | |
2147 | **/\r | |
2148 | EFI_STATUS\r | |
2149 | PxeBcDhcp6Sarr (\r | |
2150 | IN PXEBC_PRIVATE_DATA *Private,\r | |
2151 | IN EFI_DHCP6_PROTOCOL *Dhcp6\r | |
2152 | )\r | |
2153 | {\r | |
2154 | EFI_PXE_BASE_CODE_MODE *PxeMode;\r | |
2155 | EFI_DHCP6_CONFIG_DATA Config;\r | |
2156 | EFI_DHCP6_MODE_DATA Mode;\r | |
2157 | EFI_DHCP6_RETRANSMISSION *Retransmit;\r | |
2158 | EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_OPTION_MAX_NUM];\r | |
2159 | UINT8 Buffer[PXEBC_DHCP6_OPTION_MAX_SIZE];\r | |
2160 | UINT32 OptCount;\r | |
2161 | EFI_STATUS Status;\r | |
ed2bfecb | 2162 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r |
2163 | EFI_STATUS TimerStatus;\r | |
2164 | EFI_EVENT Timer;\r | |
2165 | UINT64 GetMappingTimeOut;\r | |
2166 | UINTN DataSize;\r | |
2167 | EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;\r | |
a3bcde70 HT |
2168 | \r |
2169 | Status = EFI_SUCCESS;\r | |
2170 | PxeMode = Private->PxeBc.Mode;\r | |
ed2bfecb | 2171 | Ip6Cfg = Private->Ip6Cfg;\r |
2172 | Timer = NULL;\r | |
a3bcde70 HT |
2173 | \r |
2174 | //\r | |
2175 | // Build option list for the request packet.\r | |
2176 | //\r | |
2177 | OptCount = PxeBcBuildDhcp6Options (Private, OptList, Buffer);\r | |
2178 | ASSERT (OptCount> 0);\r | |
2179 | \r | |
2180 | Retransmit = AllocateZeroPool (sizeof (EFI_DHCP6_RETRANSMISSION));\r | |
2181 | if (Retransmit == NULL) {\r | |
2182 | return EFI_OUT_OF_RESOURCES;\r | |
2183 | }\r | |
2184 | \r | |
2185 | ZeroMem (&Mode, sizeof (EFI_DHCP6_MODE_DATA));\r | |
2186 | ZeroMem (&Config, sizeof (EFI_DHCP6_CONFIG_DATA));\r | |
2187 | \r | |
2188 | Config.OptionCount = OptCount;\r | |
2189 | Config.OptionList = OptList;\r | |
2190 | Config.Dhcp6Callback = PxeBcDhcp6CallBack;\r | |
2191 | Config.CallbackContext = Private;\r | |
2192 | Config.IaInfoEvent = NULL;\r | |
2193 | Config.RapidCommit = FALSE;\r | |
2194 | Config.ReconfigureAccept = FALSE;\r | |
75dce340 | 2195 | Config.IaDescriptor.IaId = Private->IaId;\r |
a3bcde70 HT |
2196 | Config.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;\r |
2197 | Config.SolicitRetransmission = Retransmit;\r | |
2198 | Retransmit->Irt = 4;\r | |
2199 | Retransmit->Mrc = 4;\r | |
2200 | Retransmit->Mrt = 32;\r | |
2201 | Retransmit->Mrd = 60;\r | |
2202 | \r | |
2203 | //\r | |
2204 | // Configure the DHCPv6 instance for PXE boot.\r | |
2205 | //\r | |
2206 | Status = Dhcp6->Configure (Dhcp6, &Config);\r | |
ed2bfecb | 2207 | FreePool (Retransmit);\r |
a3bcde70 | 2208 | if (EFI_ERROR (Status)) {\r |
a3bcde70 HT |
2209 | return Status;\r |
2210 | }\r | |
2211 | \r | |
2212 | //\r | |
2213 | // Initialize the record fields for DHCPv6 offer in private data.\r | |
2214 | //\r | |
2215 | Private->IsProxyRecved = FALSE;\r | |
2216 | Private->OfferNum = 0;\r | |
2217 | Private->SelectIndex = 0;\r | |
2218 | ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));\r | |
2219 | ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));\r | |
2220 | \r | |
2221 | \r | |
2222 | //\r | |
2223 | // Start DHCPv6 S.A.R.R. process to acquire IPv6 address.\r | |
2224 | //\r | |
2225 | Status = Dhcp6->Start (Dhcp6);\r | |
ed2bfecb | 2226 | if (Status == EFI_NO_MAPPING) {\r |
2227 | //\r | |
2228 | // IP6 Linklocal address is not available for use, so stop current Dhcp process\r | |
2229 | // and wait for duplicate address detection to finish.\r | |
2230 | //\r | |
2231 | Dhcp6->Stop (Dhcp6);\r | |
2232 | \r | |
2233 | //\r | |
2234 | // Get Duplicate Address Detection Transmits count.\r | |
2235 | //\r | |
2236 | DataSize = sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS);\r | |
2237 | Status = Ip6Cfg->GetData (\r | |
2238 | Ip6Cfg,\r | |
2239 | Ip6ConfigDataTypeDupAddrDetectTransmits,\r | |
2240 | &DataSize,\r | |
2241 | &DadXmits\r | |
2242 | );\r | |
2243 | if (EFI_ERROR (Status)) {\r | |
2244 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2245 | return Status;\r | |
2246 | }\r | |
2247 | \r | |
2248 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
2249 | if (EFI_ERROR (Status)) {\r | |
2250 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2251 | return Status;\r | |
2252 | }\r | |
2253 | \r | |
2254 | GetMappingTimeOut = TICKS_PER_SECOND * DadXmits.DupAddrDetectTransmits + PXEBC_DAD_ADDITIONAL_DELAY;\r | |
2255 | Status = gBS->SetTimer (Timer, TimerRelative, GetMappingTimeOut);\r | |
2256 | if (EFI_ERROR (Status)) {\r | |
2257 | gBS->CloseEvent (Timer);\r | |
2258 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2259 | return Status;\r | |
2260 | }\r | |
2261 | \r | |
2262 | do {\r | |
2263 | \r | |
2264 | TimerStatus = gBS->CheckEvent (Timer);\r | |
2265 | if (!EFI_ERROR (TimerStatus)) {\r | |
2266 | Status = Dhcp6->Start (Dhcp6);\r | |
2267 | }\r | |
2268 | } while (TimerStatus == EFI_NOT_READY);\r | |
2269 | \r | |
2270 | gBS->CloseEvent (Timer);\r | |
2271 | }\r | |
a3bcde70 HT |
2272 | if (EFI_ERROR (Status)) {\r |
2273 | if (Status == EFI_ICMP_ERROR) {\r | |
2274 | PxeMode->IcmpErrorReceived = TRUE;\r | |
2275 | }\r | |
2276 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2277 | return Status;\r | |
2278 | }\r | |
2279 | \r | |
2280 | //\r | |
2281 | // Get the acquired IPv6 address and store them.\r | |
2282 | //\r | |
2283 | Status = Dhcp6->GetModeData (Dhcp6, &Mode, NULL);\r | |
2284 | if (EFI_ERROR (Status)) {\r | |
2285 | Dhcp6->Stop (Dhcp6);\r | |
2286 | return Status;\r | |
2287 | }\r | |
2288 | \r | |
bec55c33 | 2289 | ASSERT ((Mode.Ia != NULL) && (Mode.Ia->State == Dhcp6Bound));\r |
ae97201c FS |
2290 | //\r |
2291 | // DHCP6 doesn't have an option to specify the router address on the subnet, the only way to get the\r | |
2292 | // router address in IP6 is the router discovery mechanism (the RS and RA, which only be handled when\r | |
2293 | // the IP policy is Automatic). So we just hold the station IP address here and leave the IP policy as\r | |
2294 | // Automatic, until we get the server IP address. This could let IP6 driver finish the router discovery \r | |
2295 | // to find a valid router address.\r | |
2296 | //\r | |
2297 | CopyMem (&Private->TmpStationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));\r | |
ce22514e ZL |
2298 | if (Mode.ClientId != NULL) {\r |
2299 | FreePool (Mode.ClientId);\r | |
2300 | }\r | |
2301 | if (Mode.Ia != NULL) {\r | |
2302 | FreePool (Mode.Ia);\r | |
2303 | }\r | |
a3bcde70 HT |
2304 | //\r |
2305 | // Check the selected offer whether BINL retry is needed.\r | |
2306 | //\r | |
2307 | Status = PxeBcHandleDhcp6Offer (Private);\r | |
2308 | if (EFI_ERROR (Status)) {\r | |
a3bcde70 HT |
2309 | Dhcp6->Stop (Dhcp6);\r |
2310 | return Status;\r | |
2311 | }\r | |
ae97201c | 2312 | \r |
a3bcde70 HT |
2313 | return EFI_SUCCESS;\r |
2314 | }\r |