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Commit | Line | Data |
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a3bcde70 HT |
1 | /** @file\r |
2 | Functions implementation related with DHCPv6 for UefiPxeBc Driver.\r | |
3 | \r | |
8f586b85 | 4 | (C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>\r |
9f4f29cb | 5 | Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r |
a3bcde70 | 6 | \r |
ecf98fbc | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
a3bcde70 HT |
8 | \r |
9 | **/\r | |
10 | \r | |
11 | #include "PxeBcImpl.h"\r | |
12 | \r | |
d40002ba | 13 | //\r |
14 | // Well-known multi-cast address defined in section-24.1 of rfc-3315\r | |
15 | //\r | |
16 | // ALL_DHCP_Relay_Agents_and_Servers address: FF02::1:2\r | |
17 | //\r | |
d1050b9d MK |
18 | EFI_IPv6_ADDRESS mAllDhcpRelayAndServersAddress = {\r |
19 | { 0xFF, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2 }\r | |
20 | };\r | |
a3bcde70 HT |
21 | \r |
22 | /**\r | |
23 | Parse out a DHCPv6 option by OptTag, and find the position in buffer.\r | |
24 | \r | |
25 | @param[in] Buffer The pointer to the option buffer.\r | |
26 | @param[in] Length Length of the option buffer.\r | |
27 | @param[in] OptTag The required option tag.\r | |
28 | \r | |
29 | @retval NULL Failed to parse the required option.\r | |
5add2c55 | 30 | @retval Others The position of the required option in buffer.\r |
a3bcde70 HT |
31 | \r |
32 | **/\r | |
33 | EFI_DHCP6_PACKET_OPTION *\r | |
34 | PxeBcParseDhcp6Options (\r | |
d1050b9d MK |
35 | IN UINT8 *Buffer,\r |
36 | IN UINT32 Length,\r | |
37 | IN UINT16 OptTag\r | |
a3bcde70 HT |
38 | )\r |
39 | {\r | |
d1050b9d MK |
40 | EFI_DHCP6_PACKET_OPTION *Option;\r |
41 | UINT32 Offset;\r | |
a3bcde70 | 42 | \r |
d1050b9d MK |
43 | Option = (EFI_DHCP6_PACKET_OPTION *)Buffer;\r |
44 | Offset = 0;\r | |
a3bcde70 HT |
45 | \r |
46 | //\r | |
47 | // OpLen and OpCode here are both stored in network order.\r | |
48 | //\r | |
49 | while (Offset < Length) {\r | |
a3bcde70 | 50 | if (NTOHS (Option->OpCode) == OptTag) {\r |
a3bcde70 HT |
51 | return Option;\r |
52 | }\r | |
53 | \r | |
d1050b9d MK |
54 | Offset += (NTOHS (Option->OpLen) + 4);\r |
55 | Option = (EFI_DHCP6_PACKET_OPTION *)(Buffer + Offset);\r | |
a3bcde70 HT |
56 | }\r |
57 | \r | |
58 | return NULL;\r | |
59 | }\r | |
60 | \r | |
a3bcde70 HT |
61 | /**\r |
62 | Build the options buffer for the DHCPv6 request packet.\r | |
63 | \r | |
64 | @param[in] Private The pointer to PxeBc private data.\r | |
65 | @param[out] OptList The pointer to the option pointer array.\r | |
66 | @param[in] Buffer The pointer to the buffer to contain the option list.\r | |
67 | \r | |
68 | @return Index The count of the built-in options.\r | |
69 | \r | |
70 | **/\r | |
71 | UINT32\r | |
72 | PxeBcBuildDhcp6Options (\r | |
d1050b9d MK |
73 | IN PXEBC_PRIVATE_DATA *Private,\r |
74 | OUT EFI_DHCP6_PACKET_OPTION **OptList,\r | |
75 | IN UINT8 *Buffer\r | |
a3bcde70 HT |
76 | )\r |
77 | {\r | |
d1050b9d MK |
78 | PXEBC_DHCP6_OPTION_ENTRY OptEnt;\r |
79 | UINT32 Index;\r | |
80 | UINT16 Value;\r | |
a3bcde70 | 81 | \r |
d1050b9d MK |
82 | Index = 0;\r |
83 | OptList[0] = (EFI_DHCP6_PACKET_OPTION *)Buffer;\r | |
a3bcde70 HT |
84 | \r |
85 | //\r | |
86 | // Append client option request option\r | |
87 | //\r | |
d1050b9d MK |
88 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ORO);\r |
89 | OptList[Index]->OpLen = HTONS (8);\r | |
90 | OptEnt.Oro = (PXEBC_DHCP6_OPTION_ORO *)OptList[Index]->Data;\r | |
91 | OptEnt.Oro->OpCode[0] = HTONS (DHCP6_OPT_BOOT_FILE_URL);\r | |
92 | OptEnt.Oro->OpCode[1] = HTONS (DHCP6_OPT_BOOT_FILE_PARAM);\r | |
93 | OptEnt.Oro->OpCode[2] = HTONS (DHCP6_OPT_DNS_SERVERS);\r | |
94 | OptEnt.Oro->OpCode[3] = HTONS (DHCP6_OPT_VENDOR_CLASS);\r | |
a3bcde70 | 95 | Index++;\r |
d1050b9d | 96 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r |
a3bcde70 HT |
97 | \r |
98 | //\r | |
99 | // Append client network device interface option\r | |
100 | //\r | |
d1050b9d MK |
101 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_UNDI);\r |
102 | OptList[Index]->OpLen = HTONS ((UINT16)3);\r | |
103 | OptEnt.Undi = (PXEBC_DHCP6_OPTION_UNDI *)OptList[Index]->Data;\r | |
a3bcde70 HT |
104 | \r |
105 | if (Private->Nii != NULL) {\r | |
d1050b9d MK |
106 | OptEnt.Undi->Type = Private->Nii->Type;\r |
107 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r | |
108 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r | |
a3bcde70 | 109 | } else {\r |
d1050b9d MK |
110 | OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r |
111 | OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r | |
112 | OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r | |
a3bcde70 HT |
113 | }\r |
114 | \r | |
a3bcde70 | 115 | Index++;\r |
d1050b9d | 116 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r |
a3bcde70 HT |
117 | \r |
118 | //\r | |
119 | // Append client system architecture option\r | |
120 | //\r | |
d1050b9d MK |
121 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_ARCH);\r |
122 | OptList[Index]->OpLen = HTONS ((UINT16)sizeof (PXEBC_DHCP6_OPTION_ARCH));\r | |
123 | OptEnt.Arch = (PXEBC_DHCP6_OPTION_ARCH *)OptList[Index]->Data;\r | |
124 | Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r | |
a3bcde70 HT |
125 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r |
126 | Index++;\r | |
d1050b9d | 127 | OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);\r |
a3bcde70 HT |
128 | \r |
129 | //\r | |
130 | // Append vendor class option to store the PXE class identifier.\r | |
131 | //\r | |
142c00c3 | 132 | OptList[Index]->OpCode = HTONS (DHCP6_OPT_VENDOR_CLASS);\r |
d1050b9d MK |
133 | OptList[Index]->OpLen = HTONS ((UINT16)sizeof (PXEBC_DHCP6_OPTION_VENDOR_CLASS));\r |
134 | OptEnt.VendorClass = (PXEBC_DHCP6_OPTION_VENDOR_CLASS *)OptList[Index]->Data;\r | |
a3bcde70 | 135 | OptEnt.VendorClass->Vendor = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);\r |
d1050b9d | 136 | OptEnt.VendorClass->ClassLen = HTONS ((UINT16)sizeof (PXEBC_CLASS_ID));\r |
a3bcde70 HT |
137 | CopyMem (\r |
138 | &OptEnt.VendorClass->ClassId,\r | |
139 | DEFAULT_CLASS_ID_DATA,\r | |
140 | sizeof (PXEBC_CLASS_ID)\r | |
141 | );\r | |
142 | PxeBcUintnToAscDecWithFormat (\r | |
143 | EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE,\r | |
144 | OptEnt.VendorClass->ClassId.ArchitectureType,\r | |
145 | sizeof (OptEnt.VendorClass->ClassId.ArchitectureType)\r | |
146 | );\r | |
147 | \r | |
148 | if (Private->Nii != NULL) {\r | |
149 | CopyMem (\r | |
150 | OptEnt.VendorClass->ClassId.InterfaceName,\r | |
151 | Private->Nii->StringId,\r | |
152 | sizeof (OptEnt.VendorClass->ClassId.InterfaceName)\r | |
153 | );\r | |
154 | PxeBcUintnToAscDecWithFormat (\r | |
155 | Private->Nii->MajorVer,\r | |
156 | OptEnt.VendorClass->ClassId.UndiMajor,\r | |
157 | sizeof (OptEnt.VendorClass->ClassId.UndiMajor)\r | |
158 | );\r | |
159 | PxeBcUintnToAscDecWithFormat (\r | |
160 | Private->Nii->MinorVer,\r | |
161 | OptEnt.VendorClass->ClassId.UndiMinor,\r | |
162 | sizeof (OptEnt.VendorClass->ClassId.UndiMinor)\r | |
163 | );\r | |
164 | }\r | |
165 | \r | |
166 | Index++;\r | |
167 | \r | |
168 | return Index;\r | |
169 | }\r | |
170 | \r | |
a3bcde70 HT |
171 | /**\r |
172 | Cache the DHCPv6 packet.\r | |
173 | \r | |
174 | @param[in] Dst The pointer to the cache buffer for DHCPv6 packet.\r | |
175 | @param[in] Src The pointer to the DHCPv6 packet to be cached.\r | |
176 | \r | |
a35dc649 FS |
177 | @retval EFI_SUCCESS Packet is copied.\r |
178 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
179 | \r | |
a3bcde70 | 180 | **/\r |
a35dc649 | 181 | EFI_STATUS\r |
a3bcde70 | 182 | PxeBcCacheDhcp6Packet (\r |
d1050b9d MK |
183 | IN EFI_DHCP6_PACKET *Dst,\r |
184 | IN EFI_DHCP6_PACKET *Src\r | |
a3bcde70 HT |
185 | )\r |
186 | {\r | |
a35dc649 FS |
187 | if (Dst->Size < Src->Length) {\r |
188 | return EFI_BUFFER_TOO_SMALL;\r | |
189 | }\r | |
a3bcde70 HT |
190 | \r |
191 | CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);\r | |
192 | Dst->Length = Src->Length;\r | |
a35dc649 FS |
193 | \r |
194 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
195 | }\r |
196 | \r | |
6692d519 ZL |
197 | /**\r |
198 | Retrieve the boot server address using the EFI_DNS6_PROTOCOL.\r | |
199 | \r | |
200 | @param[in] Private Pointer to PxeBc private data.\r | |
201 | @param[in] HostName Pointer to buffer containing hostname.\r | |
202 | @param[out] IpAddress On output, pointer to buffer containing IPv6 address.\r | |
203 | \r | |
204 | @retval EFI_SUCCESS Operation succeeded.\r | |
205 | @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r | |
206 | @retval EFI_DEVICE_ERROR An unexpected network error occurred.\r | |
207 | @retval Others Other errors as indicated.\r | |
f75a7f56 | 208 | \r |
6692d519 ZL |
209 | **/\r |
210 | EFI_STATUS\r | |
211 | PxeBcDns6 (\r | |
d1050b9d MK |
212 | IN PXEBC_PRIVATE_DATA *Private,\r |
213 | IN CHAR16 *HostName,\r | |
214 | OUT EFI_IPv6_ADDRESS *IpAddress\r | |
6692d519 ZL |
215 | )\r |
216 | {\r | |
d1050b9d MK |
217 | EFI_STATUS Status;\r |
218 | EFI_DNS6_PROTOCOL *Dns6;\r | |
219 | EFI_DNS6_CONFIG_DATA Dns6ConfigData;\r | |
220 | EFI_DNS6_COMPLETION_TOKEN Token;\r | |
221 | EFI_HANDLE Dns6Handle;\r | |
222 | EFI_IPv6_ADDRESS *DnsServerList;\r | |
223 | BOOLEAN IsDone;\r | |
224 | \r | |
225 | Dns6 = NULL;\r | |
226 | Dns6Handle = NULL;\r | |
227 | DnsServerList = Private->DnsServer;\r | |
6692d519 ZL |
228 | ZeroMem (&Token, sizeof (EFI_DNS6_COMPLETION_TOKEN));\r |
229 | \r | |
230 | //\r | |
231 | // Create a DNSv6 child instance and get the protocol.\r | |
232 | //\r | |
233 | Status = NetLibCreateServiceChild (\r | |
234 | Private->Controller,\r | |
235 | Private->Image,\r | |
236 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
237 | &Dns6Handle\r | |
238 | );\r | |
239 | if (EFI_ERROR (Status)) {\r | |
240 | goto Exit;\r | |
f75a7f56 LG |
241 | }\r |
242 | \r | |
6692d519 ZL |
243 | Status = gBS->OpenProtocol (\r |
244 | Dns6Handle,\r | |
245 | &gEfiDns6ProtocolGuid,\r | |
d1050b9d | 246 | (VOID **)&Dns6,\r |
6692d519 ZL |
247 | Private->Image,\r |
248 | Private->Controller,\r | |
249 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
250 | );\r | |
251 | if (EFI_ERROR (Status)) {\r | |
252 | goto Exit;\r | |
253 | }\r | |
254 | \r | |
255 | //\r | |
256 | // Configure DNS6 instance for the DNS server address and protocol.\r | |
257 | //\r | |
258 | ZeroMem (&Dns6ConfigData, sizeof (EFI_DNS6_CONFIG_DATA));\r | |
259 | Dns6ConfigData.DnsServerCount = 1;\r | |
260 | Dns6ConfigData.DnsServerList = DnsServerList;\r | |
261 | Dns6ConfigData.EnableDnsCache = TRUE;\r | |
262 | Dns6ConfigData.Protocol = EFI_IP_PROTO_UDP;\r | |
263 | IP6_COPY_ADDRESS (&Dns6ConfigData.StationIp, &Private->TmpStationIp.v6);\r | |
264 | Status = Dns6->Configure (\r | |
265 | Dns6,\r | |
266 | &Dns6ConfigData\r | |
267 | );\r | |
268 | if (EFI_ERROR (Status)) {\r | |
269 | goto Exit;\r | |
270 | }\r | |
271 | \r | |
272 | Token.Status = EFI_NOT_READY;\r | |
273 | IsDone = FALSE;\r | |
274 | //\r | |
275 | // Create event to set the IsDone flag when name resolution is finished.\r | |
276 | //\r | |
277 | Status = gBS->CreateEvent (\r | |
278 | EVT_NOTIFY_SIGNAL,\r | |
279 | TPL_NOTIFY,\r | |
280 | PxeBcCommonNotify,\r | |
281 | &IsDone,\r | |
282 | &Token.Event\r | |
283 | );\r | |
284 | if (EFI_ERROR (Status)) {\r | |
285 | goto Exit;\r | |
286 | }\r | |
287 | \r | |
288 | //\r | |
289 | // Start asynchronous name resolution.\r | |
290 | //\r | |
291 | Status = Dns6->HostNameToIp (Dns6, HostName, &Token);\r | |
292 | if (EFI_ERROR (Status)) {\r | |
293 | goto Exit;\r | |
294 | }\r | |
295 | \r | |
296 | while (!IsDone) {\r | |
297 | Dns6->Poll (Dns6);\r | |
298 | }\r | |
299 | \r | |
300 | //\r | |
301 | // Name resolution is done, check result.\r | |
302 | //\r | |
f75a7f56 | 303 | Status = Token.Status;\r |
6692d519 ZL |
304 | if (!EFI_ERROR (Status)) {\r |
305 | if (Token.RspData.H2AData == NULL) {\r | |
306 | Status = EFI_DEVICE_ERROR;\r | |
307 | goto Exit;\r | |
308 | }\r | |
d1050b9d MK |
309 | \r |
310 | if ((Token.RspData.H2AData->IpCount == 0) || (Token.RspData.H2AData->IpList == NULL)) {\r | |
6692d519 ZL |
311 | Status = EFI_DEVICE_ERROR;\r |
312 | goto Exit;\r | |
313 | }\r | |
d1050b9d | 314 | \r |
6692d519 ZL |
315 | //\r |
316 | // We just return the first IPv6 address from DNS protocol.\r | |
317 | //\r | |
318 | IP6_COPY_ADDRESS (IpAddress, Token.RspData.H2AData->IpList);\r | |
319 | Status = EFI_SUCCESS;\r | |
320 | }\r | |
f75a7f56 | 321 | \r |
6692d519 ZL |
322 | Exit:\r |
323 | FreePool (HostName);\r | |
324 | \r | |
325 | if (Token.Event != NULL) {\r | |
326 | gBS->CloseEvent (Token.Event);\r | |
327 | }\r | |
d1050b9d | 328 | \r |
6692d519 ZL |
329 | if (Token.RspData.H2AData != NULL) {\r |
330 | if (Token.RspData.H2AData->IpList != NULL) {\r | |
331 | FreePool (Token.RspData.H2AData->IpList);\r | |
332 | }\r | |
d1050b9d | 333 | \r |
6692d519 ZL |
334 | FreePool (Token.RspData.H2AData);\r |
335 | }\r | |
336 | \r | |
337 | if (Dns6 != NULL) {\r | |
338 | Dns6->Configure (Dns6, NULL);\r | |
f75a7f56 | 339 | \r |
6692d519 ZL |
340 | gBS->CloseProtocol (\r |
341 | Dns6Handle,\r | |
342 | &gEfiDns6ProtocolGuid,\r | |
343 | Private->Image,\r | |
344 | Private->Controller\r | |
345 | );\r | |
346 | }\r | |
347 | \r | |
348 | if (Dns6Handle != NULL) {\r | |
349 | NetLibDestroyServiceChild (\r | |
350 | Private->Controller,\r | |
351 | Private->Image,\r | |
352 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
353 | Dns6Handle\r | |
354 | );\r | |
355 | }\r | |
356 | \r | |
357 | if (DnsServerList != NULL) {\r | |
358 | FreePool (DnsServerList);\r | |
359 | }\r | |
f75a7f56 LG |
360 | \r |
361 | return Status;\r | |
6692d519 | 362 | }\r |
a3bcde70 HT |
363 | \r |
364 | /**\r | |
365 | Parse the Boot File URL option.\r | |
366 | \r | |
6692d519 | 367 | @param[in] Private Pointer to PxeBc private data.\r |
a3bcde70 HT |
368 | @param[out] FileName The pointer to the boot file name.\r |
369 | @param[in, out] SrvAddr The pointer to the boot server address.\r | |
370 | @param[in] BootFile The pointer to the boot file URL option data.\r | |
371 | @param[in] Length The length of the boot file URL option data.\r | |
372 | \r | |
373 | @retval EFI_ABORTED User cancel operation.\r | |
374 | @retval EFI_SUCCESS Selected the boot menu successfully.\r | |
5add2c55 | 375 | @retval EFI_NOT_READY Read the input key from the keyboard has not finish.\r |
a3bcde70 HT |
376 | \r |
377 | **/\r | |
378 | EFI_STATUS\r | |
379 | PxeBcExtractBootFileUrl (\r | |
d1050b9d MK |
380 | IN PXEBC_PRIVATE_DATA *Private,\r |
381 | OUT UINT8 **FileName,\r | |
382 | IN OUT EFI_IPv6_ADDRESS *SrvAddr,\r | |
383 | IN CHAR8 *BootFile,\r | |
384 | IN UINT16 Length\r | |
a3bcde70 HT |
385 | )\r |
386 | {\r | |
d1050b9d MK |
387 | UINT16 PrefixLen;\r |
388 | CHAR8 *BootFileNamePtr;\r | |
389 | CHAR8 *BootFileName;\r | |
390 | UINT16 BootFileNameLen;\r | |
391 | CHAR8 *TmpStr;\r | |
392 | CHAR8 TmpChar;\r | |
393 | CHAR8 *ServerAddressOption;\r | |
394 | CHAR8 *ServerAddress;\r | |
395 | CHAR8 *ModeStr;\r | |
396 | CHAR16 *HostName;\r | |
397 | BOOLEAN IpExpressedUrl;\r | |
398 | UINTN Len;\r | |
399 | EFI_STATUS Status;\r | |
a3bcde70 | 400 | \r |
6692d519 | 401 | IpExpressedUrl = TRUE;\r |
a3bcde70 HT |
402 | //\r |
403 | // The format of the Boot File URL option is:\r | |
404 | //\r | |
405 | // 0 1 2 3\r | |
406 | // 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 | |
407 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
408 | // | OPT_BOOTFILE_URL | option-len |\r | |
409 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
410 | // | |\r | |
411 | // . bootfile-url (variable length) .\r | |
412 | // | |\r | |
413 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+\r | |
414 | //\r | |
415 | \r | |
416 | //\r | |
6692d519 ZL |
417 | // Based upon RFC 5970 and UEFI 2.6, bootfile-url format can be\r |
418 | // tftp://[SERVER_ADDRESS]/BOOTFILE_NAME or tftp://domain_name/BOOTFILE_NAME\r | |
a3bcde70 HT |
419 | // As an example where the BOOTFILE_NAME is the EFI loader and\r |
420 | // SERVER_ADDRESS is the ASCII encoding of an IPV6 address.\r | |
421 | //\r | |
d1050b9d | 422 | PrefixLen = (UINT16)AsciiStrLen (PXEBC_DHCP6_BOOT_FILE_URL_PREFIX);\r |
a3bcde70 | 423 | \r |
d1050b9d MK |
424 | if ((Length <= PrefixLen) ||\r |
425 | (CompareMem (BootFile, PXEBC_DHCP6_BOOT_FILE_URL_PREFIX, PrefixLen) != 0))\r | |
426 | {\r | |
a3bcde70 HT |
427 | return EFI_NOT_FOUND;\r |
428 | }\r | |
429 | \r | |
430 | BootFile = BootFile + PrefixLen;\r | |
d1050b9d | 431 | Length = (UINT16)(Length - PrefixLen);\r |
a3bcde70 | 432 | \r |
d1050b9d | 433 | TmpStr = (CHAR8 *)AllocateZeroPool (Length + 1);\r |
a3bcde70 HT |
434 | if (TmpStr == NULL) {\r |
435 | return EFI_OUT_OF_RESOURCES;\r | |
436 | }\r | |
437 | \r | |
438 | CopyMem (TmpStr, BootFile, Length);\r | |
439 | TmpStr[Length] = '\0';\r | |
440 | \r | |
441 | //\r | |
442 | // Get the part of SERVER_ADDRESS string.\r | |
443 | //\r | |
444 | ServerAddressOption = TmpStr;\r | |
6692d519 | 445 | if (*ServerAddressOption == PXEBC_ADDR_START_DELIMITER) {\r |
d1050b9d | 446 | ServerAddressOption++;\r |
6692d519 ZL |
447 | ServerAddress = ServerAddressOption;\r |
448 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r | |
449 | ServerAddress++;\r | |
450 | }\r | |
f75a7f56 | 451 | \r |
6692d519 ZL |
452 | if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {\r |
453 | FreePool (TmpStr);\r | |
454 | return EFI_INVALID_PARAMETER;\r | |
455 | }\r | |
f75a7f56 | 456 | \r |
6692d519 | 457 | *ServerAddress = '\0';\r |
f75a7f56 | 458 | \r |
6692d519 ZL |
459 | //\r |
460 | // Convert the string of server address to Ipv6 address format and store it.\r | |
461 | //\r | |
462 | Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);\r | |
463 | if (EFI_ERROR (Status)) {\r | |
464 | FreePool (TmpStr);\r | |
465 | return Status;\r | |
466 | }\r | |
6692d519 ZL |
467 | } else {\r |
468 | IpExpressedUrl = FALSE;\r | |
d1050b9d | 469 | ServerAddress = ServerAddressOption;\r |
6692d519 ZL |
470 | while (*ServerAddress != '\0' && *ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r |
471 | ServerAddress++;\r | |
472 | }\r | |
a3bcde70 | 473 | \r |
6692d519 ZL |
474 | if (*ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {\r |
475 | FreePool (TmpStr);\r | |
476 | return EFI_INVALID_PARAMETER;\r | |
477 | }\r | |
d1050b9d | 478 | \r |
6692d519 | 479 | *ServerAddress = '\0';\r |
a3bcde70 | 480 | \r |
d1050b9d | 481 | Len = AsciiStrSize (ServerAddressOption);\r |
6692d519 ZL |
482 | HostName = AllocateZeroPool (Len * sizeof (CHAR16));\r |
483 | if (HostName == NULL) {\r | |
484 | FreePool (TmpStr);\r | |
485 | return EFI_OUT_OF_RESOURCES;\r | |
486 | }\r | |
d1050b9d | 487 | \r |
6692d519 ZL |
488 | AsciiStrToUnicodeStrS (\r |
489 | ServerAddressOption,\r | |
490 | HostName,\r | |
491 | Len\r | |
492 | );\r | |
a3bcde70 | 493 | \r |
6692d519 ZL |
494 | //\r |
495 | // Perform DNS resolution.\r | |
496 | //\r | |
d1050b9d | 497 | Status = PxeBcDns6 (Private, HostName, SrvAddr);\r |
6692d519 ZL |
498 | if (EFI_ERROR (Status)) {\r |
499 | FreePool (TmpStr);\r | |
500 | return Status;\r | |
501 | }\r | |
a3bcde70 HT |
502 | }\r |
503 | \r | |
504 | //\r | |
505 | // Get the part of BOOTFILE_NAME string.\r | |
506 | //\r | |
d1050b9d | 507 | BootFileNamePtr = (CHAR8 *)((UINTN)ServerAddress + 1);\r |
6692d519 ZL |
508 | if (IpExpressedUrl) {\r |
509 | if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {\r | |
510 | FreePool (TmpStr);\r | |
511 | return EFI_INVALID_PARAMETER;\r | |
512 | }\r | |
d1050b9d | 513 | \r |
6692d519 | 514 | ++BootFileNamePtr;\r |
a3bcde70 HT |
515 | }\r |
516 | \r | |
d1050b9d MK |
517 | BootFileNameLen = (UINT16)(Length - (UINT16)((UINTN)BootFileNamePtr - (UINTN)TmpStr) + 1);\r |
518 | if ((BootFileNameLen != 0) || (FileName != NULL)) {\r | |
eb2710af | 519 | //\r |
520 | // Remove trailing mode=octet if present and ignore. All other modes are\r | |
521 | // invalid for netboot6, so reject them.\r | |
522 | //\r | |
523 | ModeStr = AsciiStrStr (BootFileNamePtr, ";mode=octet");\r | |
d1050b9d | 524 | if ((ModeStr != NULL) && (*(ModeStr + AsciiStrLen (";mode=octet")) == '\0')) {\r |
eb2710af | 525 | *ModeStr = '\0';\r |
526 | } else if (AsciiStrStr (BootFileNamePtr, ";mode=") != NULL) {\r | |
2fad330f | 527 | FreePool (TmpStr);\r |
eb2710af | 528 | return EFI_INVALID_PARAMETER;\r |
529 | }\r | |
530 | \r | |
129b8b09 | 531 | //\r |
532 | // Extract boot file name from URL.\r | |
533 | //\r | |
d1050b9d | 534 | BootFileName = (CHAR8 *)AllocateZeroPool (BootFileNameLen);\r |
a3bcde70 HT |
535 | if (BootFileName == NULL) {\r |
536 | FreePool (TmpStr);\r | |
537 | return EFI_OUT_OF_RESOURCES;\r | |
538 | }\r | |
d1050b9d MK |
539 | \r |
540 | *FileName = (UINT8 *)BootFileName;\r | |
a3bcde70 | 541 | \r |
129b8b09 | 542 | //\r |
543 | // Decode percent-encoding in boot file name.\r | |
544 | //\r | |
545 | while (*BootFileNamePtr != '\0') {\r | |
546 | if (*BootFileNamePtr == '%') {\r | |
d1050b9d | 547 | TmpChar = *(BootFileNamePtr+ 3);\r |
129b8b09 | 548 | *(BootFileNamePtr+ 3) = '\0';\r |
d1050b9d | 549 | *BootFileName = (UINT8)AsciiStrHexToUintn ((CHAR8 *)(BootFileNamePtr + 1));\r |
129b8b09 | 550 | BootFileName++;\r |
551 | *(BootFileNamePtr+ 3) = TmpChar;\r | |
d1050b9d | 552 | BootFileNamePtr += 3;\r |
129b8b09 | 553 | } else {\r |
554 | *BootFileName = *BootFileNamePtr;\r | |
555 | BootFileName++;\r | |
556 | BootFileNamePtr++;\r | |
557 | }\r | |
558 | }\r | |
d1050b9d | 559 | \r |
129b8b09 | 560 | *BootFileName = '\0';\r |
561 | }\r | |
a3bcde70 HT |
562 | \r |
563 | FreePool (TmpStr);\r | |
564 | \r | |
565 | return EFI_SUCCESS;\r | |
566 | }\r | |
567 | \r | |
a3bcde70 HT |
568 | /**\r |
569 | Parse the Boot File Parameter option.\r | |
570 | \r | |
571 | @param[in] BootFilePara The pointer to boot file parameter option data.\r | |
572 | @param[out] BootFileSize The pointer to the parsed boot file size.\r | |
573 | \r | |
574 | @retval EFI_SUCCESS Successfully obtained the boot file size from parameter option.\r | |
575 | @retval EFI_NOT_FOUND Failed to extract the boot file size from parameter option.\r | |
576 | \r | |
577 | **/\r | |
578 | EFI_STATUS\r | |
579 | PxeBcExtractBootFileParam (\r | |
d1050b9d MK |
580 | IN CHAR8 *BootFilePara,\r |
581 | OUT UINT16 *BootFileSize\r | |
a3bcde70 HT |
582 | )\r |
583 | {\r | |
d1050b9d MK |
584 | UINT16 Length;\r |
585 | UINT8 Index;\r | |
586 | UINT8 Digit;\r | |
587 | UINT32 Size;\r | |
a3bcde70 HT |
588 | \r |
589 | CopyMem (&Length, BootFilePara, sizeof (UINT16));\r | |
590 | Length = NTOHS (Length);\r | |
591 | \r | |
592 | //\r | |
593 | // The BootFile Size should be 1~5 byte ASCII strings\r | |
594 | //\r | |
d1050b9d | 595 | if ((Length < 1) || (Length > 5)) {\r |
a3bcde70 HT |
596 | return EFI_NOT_FOUND;\r |
597 | }\r | |
598 | \r | |
599 | //\r | |
600 | // Extract the value of BootFile Size.\r | |
601 | //\r | |
602 | BootFilePara = BootFilePara + sizeof (UINT16);\r | |
603 | Size = 0;\r | |
604 | for (Index = 0; Index < Length; Index++) {\r | |
605 | if (EFI_ERROR (PxeBcUniHexToUint8 (&Digit, *(BootFilePara + Index)))) {\r | |
606 | return EFI_NOT_FOUND;\r | |
607 | }\r | |
608 | \r | |
609 | Size = (Size + Digit) * 10;\r | |
610 | }\r | |
611 | \r | |
612 | Size = Size / 10;\r | |
613 | if (Size > PXEBC_DHCP6_MAX_BOOT_FILE_SIZE) {\r | |
614 | return EFI_NOT_FOUND;\r | |
615 | }\r | |
616 | \r | |
d1050b9d | 617 | *BootFileSize = (UINT16)Size;\r |
a3bcde70 HT |
618 | return EFI_SUCCESS;\r |
619 | }\r | |
620 | \r | |
a3bcde70 HT |
621 | /**\r |
622 | Parse the cached DHCPv6 packet, including all the options.\r | |
623 | \r | |
624 | @param[in] Cache6 The pointer to a cached DHCPv6 packet.\r | |
625 | \r | |
626 | @retval EFI_SUCCESS Parsed the DHCPv6 packet successfully.\r | |
627 | @retval EFI_DEVICE_ERROR Failed to parse and invalid the packet.\r | |
628 | \r | |
629 | **/\r | |
630 | EFI_STATUS\r | |
631 | PxeBcParseDhcp6Packet (\r | |
632 | IN PXEBC_DHCP6_PACKET_CACHE *Cache6\r | |
633 | )\r | |
634 | {\r | |
d1050b9d MK |
635 | EFI_DHCP6_PACKET *Offer;\r |
636 | EFI_DHCP6_PACKET_OPTION **Options;\r | |
637 | EFI_DHCP6_PACKET_OPTION *Option;\r | |
638 | PXEBC_OFFER_TYPE OfferType;\r | |
639 | BOOLEAN IsProxyOffer;\r | |
640 | BOOLEAN IsPxeOffer;\r | |
641 | UINT32 Offset;\r | |
642 | UINT32 Length;\r | |
643 | UINT32 EnterpriseNum;\r | |
a3bcde70 HT |
644 | \r |
645 | IsProxyOffer = TRUE;\r | |
646 | IsPxeOffer = FALSE;\r | |
647 | Offer = &Cache6->Packet.Offer;\r | |
648 | Options = Cache6->OptList;\r | |
649 | \r | |
650 | ZeroMem (Cache6->OptList, sizeof (Cache6->OptList));\r | |
651 | \r | |
d1050b9d MK |
652 | Option = (EFI_DHCP6_PACKET_OPTION *)(Offer->Dhcp6.Option);\r |
653 | Offset = 0;\r | |
654 | Length = GET_DHCP6_OPTION_SIZE (Offer);\r | |
a3bcde70 HT |
655 | \r |
656 | //\r | |
657 | // OpLen and OpCode here are both stored in network order, since they are from original packet.\r | |
658 | //\r | |
659 | while (Offset < Length) {\r | |
142c00c3 | 660 | if (NTOHS (Option->OpCode) == DHCP6_OPT_IA_NA) {\r |
a3bcde70 | 661 | Options[PXEBC_DHCP6_IDX_IA_NA] = Option;\r |
142c00c3 | 662 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_URL) {\r |
a3bcde70 HT |
663 | //\r |
664 | // The server sends this option to inform the client about an URL to a boot file.\r | |
665 | //\r | |
666 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_URL] = Option;\r | |
142c00c3 | 667 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_PARAM) {\r |
a3bcde70 | 668 | Options[PXEBC_DHCP6_IDX_BOOT_FILE_PARAM] = Option;\r |
142c00c3 | 669 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {\r |
a3bcde70 | 670 | Options[PXEBC_DHCP6_IDX_VENDOR_CLASS] = Option;\r |
6692d519 ZL |
671 | } else if (NTOHS (Option->OpCode) == DHCP6_OPT_DNS_SERVERS) {\r |
672 | Options[PXEBC_DHCP6_IDX_DNS_SERVER] = Option;\r | |
a3bcde70 HT |
673 | }\r |
674 | \r | |
675 | Offset += (NTOHS (Option->OpLen) + 4);\r | |
d1050b9d | 676 | Option = (EFI_DHCP6_PACKET_OPTION *)(Offer->Dhcp6.Option + Offset);\r |
a3bcde70 HT |
677 | }\r |
678 | \r | |
679 | //\r | |
ae97201c | 680 | // The offer with assigned client address is NOT a proxy offer.\r |
5add2c55 | 681 | // An ia_na option, embedded with valid ia_addr option and a status_code of success.\r |
a3bcde70 HT |
682 | //\r |
683 | Option = Options[PXEBC_DHCP6_IDX_IA_NA];\r | |
129b8b09 | 684 | if (Option != NULL) {\r |
a3bcde70 HT |
685 | Option = PxeBcParseDhcp6Options (\r |
686 | Option->Data + 12,\r | |
687 | NTOHS (Option->OpLen),\r | |
142c00c3 | 688 | DHCP6_OPT_STATUS_CODE\r |
a3bcde70 | 689 | );\r |
d1050b9d | 690 | if (((Option != NULL) && (Option->Data[0] == 0)) || (Option == NULL)) {\r |
a3bcde70 HT |
691 | IsProxyOffer = FALSE;\r |
692 | }\r | |
693 | }\r | |
694 | \r | |
695 | //\r | |
696 | // The offer with "PXEClient" is a pxe offer.\r | |
697 | //\r | |
698 | Option = Options[PXEBC_DHCP6_IDX_VENDOR_CLASS];\r | |
d1050b9d | 699 | EnterpriseNum = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);\r |
129b8b09 | 700 | \r |
d1050b9d MK |
701 | if ((Option != NULL) &&\r |
702 | (NTOHS (Option->OpLen) >= 13) &&\r | |
703 | (CompareMem (Option->Data, &EnterpriseNum, sizeof (UINT32)) == 0) &&\r | |
704 | (CompareMem (&Option->Data[6], DEFAULT_CLASS_ID_DATA, 9) == 0))\r | |
705 | {\r | |
a3bcde70 HT |
706 | IsPxeOffer = TRUE;\r |
707 | }\r | |
708 | \r | |
709 | //\r | |
710 | // Determine offer type of the dhcp6 packet.\r | |
711 | //\r | |
712 | if (IsPxeOffer) {\r | |
713 | //\r | |
714 | // It's a binl offer only with PXEClient.\r | |
715 | //\r | |
716 | OfferType = IsProxyOffer ? PxeOfferTypeProxyBinl : PxeOfferTypeDhcpBinl;\r | |
717 | } else {\r | |
718 | //\r | |
719 | // It's a dhcp only offer, which is a pure dhcp6 offer packet.\r | |
720 | //\r | |
721 | OfferType = PxeOfferTypeDhcpOnly;\r | |
722 | }\r | |
723 | \r | |
724 | Cache6->OfferType = OfferType;\r | |
725 | \r | |
726 | return EFI_SUCCESS;\r | |
727 | }\r | |
728 | \r | |
a3bcde70 HT |
729 | /**\r |
730 | Cache the DHCPv6 ack packet, and parse it on demand.\r | |
731 | \r | |
732 | @param[in] Private The pointer to PxeBc private data.\r | |
733 | @param[in] Ack The pointer to the DHCPv6 ack packet.\r | |
734 | @param[in] Verified If TRUE, parse the ACK packet and store info into mode data.\r | |
735 | \r | |
a35dc649 FS |
736 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
737 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
738 | \r | |
a3bcde70 | 739 | **/\r |
a35dc649 | 740 | EFI_STATUS\r |
a3bcde70 | 741 | PxeBcCopyDhcp6Ack (\r |
d1050b9d MK |
742 | IN PXEBC_PRIVATE_DATA *Private,\r |
743 | IN EFI_DHCP6_PACKET *Ack,\r | |
744 | IN BOOLEAN Verified\r | |
a3bcde70 HT |
745 | )\r |
746 | {\r | |
747 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
a35dc649 | 748 | EFI_STATUS Status;\r |
a3bcde70 HT |
749 | \r |
750 | Mode = Private->PxeBc.Mode;\r | |
751 | \r | |
a35dc649 FS |
752 | Status = PxeBcCacheDhcp6Packet (&Private->DhcpAck.Dhcp6.Packet.Ack, Ack);\r |
753 | if (EFI_ERROR (Status)) {\r | |
754 | return Status;\r | |
755 | }\r | |
a3bcde70 HT |
756 | \r |
757 | if (Verified) {\r | |
758 | //\r | |
759 | // Parse the ack packet and store it into mode data if needed.\r | |
760 | //\r | |
761 | PxeBcParseDhcp6Packet (&Private->DhcpAck.Dhcp6);\r | |
762 | CopyMem (&Mode->DhcpAck.Dhcpv6, &Ack->Dhcp6, Ack->Length);\r | |
763 | Mode->DhcpAckReceived = TRUE;\r | |
764 | }\r | |
a35dc649 FS |
765 | \r |
766 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
767 | }\r |
768 | \r | |
a3bcde70 HT |
769 | /**\r |
770 | Cache the DHCPv6 proxy offer packet according to the received order.\r | |
771 | \r | |
772 | @param[in] Private The pointer to PxeBc private data.\r | |
773 | @param[in] OfferIndex The received order of offer packets.\r | |
774 | \r | |
a35dc649 FS |
775 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
776 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
777 | \r | |
a3bcde70 | 778 | **/\r |
a35dc649 | 779 | EFI_STATUS\r |
a3bcde70 | 780 | PxeBcCopyDhcp6Proxy (\r |
d1050b9d MK |
781 | IN PXEBC_PRIVATE_DATA *Private,\r |
782 | IN UINT32 OfferIndex\r | |
a3bcde70 HT |
783 | )\r |
784 | {\r | |
d1050b9d MK |
785 | EFI_PXE_BASE_CODE_MODE *Mode;\r |
786 | EFI_DHCP6_PACKET *Offer;\r | |
a35dc649 | 787 | EFI_STATUS Status;\r |
a3bcde70 HT |
788 | \r |
789 | ASSERT (OfferIndex < Private->OfferNum);\r | |
790 | ASSERT (OfferIndex < PXEBC_OFFER_MAX_NUM);\r | |
791 | \r | |
792 | Mode = Private->PxeBc.Mode;\r | |
793 | Offer = &Private->OfferBuffer[OfferIndex].Dhcp6.Packet.Offer;\r | |
794 | \r | |
795 | //\r | |
796 | // Cache the proxy offer packet and parse it.\r | |
797 | //\r | |
a35dc649 | 798 | Status = PxeBcCacheDhcp6Packet (&Private->ProxyOffer.Dhcp6.Packet.Offer, Offer);\r |
d1050b9d | 799 | if (EFI_ERROR (Status)) {\r |
a35dc649 FS |
800 | return Status;\r |
801 | }\r | |
d1050b9d | 802 | \r |
a3bcde70 HT |
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 | |
a35dc649 FS |
810 | \r |
811 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
812 | }\r |
813 | \r | |
129b8b09 | 814 | /**\r |
815 | Seek the address of the first byte of the option header.\r | |
816 | \r | |
817 | @param[in] Buf The pointer to the buffer.\r | |
818 | @param[in] SeekLen The length to seek.\r | |
819 | @param[in] OptType The option type.\r | |
820 | \r | |
821 | @retval NULL If it failed to seek the option.\r | |
822 | @retval others The position to the option.\r | |
823 | \r | |
824 | **/\r | |
825 | UINT8 *\r | |
826 | PxeBcDhcp6SeekOption (\r | |
d1050b9d MK |
827 | IN UINT8 *Buf,\r |
828 | IN UINT32 SeekLen,\r | |
829 | IN UINT16 OptType\r | |
129b8b09 | 830 | )\r |
831 | {\r | |
d1050b9d MK |
832 | UINT8 *Cursor;\r |
833 | UINT8 *Option;\r | |
834 | UINT16 DataLen;\r | |
835 | UINT16 OpCode;\r | |
129b8b09 | 836 | \r |
837 | Option = NULL;\r | |
838 | Cursor = Buf;\r | |
839 | \r | |
840 | while (Cursor < Buf + SeekLen) {\r | |
d1050b9d | 841 | OpCode = ReadUnaligned16 ((UINT16 *)Cursor);\r |
129b8b09 | 842 | if (OpCode == HTONS (OptType)) {\r |
843 | Option = Cursor;\r | |
844 | break;\r | |
845 | }\r | |
d1050b9d MK |
846 | \r |
847 | DataLen = NTOHS (ReadUnaligned16 ((UINT16 *)(Cursor + 2)));\r | |
129b8b09 | 848 | Cursor += (DataLen + 4);\r |
849 | }\r | |
850 | \r | |
851 | return Option;\r | |
852 | }\r | |
853 | \r | |
129b8b09 | 854 | /**\r |
855 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
856 | \r | |
857 | @param[in] Private The pointer to PxeBc private data.\r | |
858 | @param[in] Index PxeBc option boot item type.\r | |
859 | \r | |
860 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
861 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
862 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
863 | @retval Others Failed to discover the boot file.\r | |
864 | \r | |
865 | **/\r | |
866 | EFI_STATUS\r | |
867 | PxeBcRequestBootService (\r | |
d1050b9d MK |
868 | IN PXEBC_PRIVATE_DATA *Private,\r |
869 | IN UINT32 Index\r | |
129b8b09 | 870 | )\r |
871 | {\r | |
d1050b9d MK |
872 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r |
873 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
874 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r | |
875 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
876 | UINTN DiscoverLen;\r | |
877 | EFI_DHCP6_PACKET *Request;\r | |
878 | UINTN RequestLen;\r | |
879 | EFI_DHCP6_PACKET *Reply;\r | |
880 | UINT8 *RequestOpt;\r | |
881 | UINT8 *DiscoverOpt;\r | |
882 | UINTN ReadSize;\r | |
883 | UINT16 OpFlags;\r | |
884 | UINT16 OpCode;\r | |
885 | UINT16 OpLen;\r | |
886 | EFI_STATUS Status;\r | |
887 | EFI_DHCP6_PACKET *IndexOffer;\r | |
888 | UINT8 *Option;\r | |
889 | \r | |
890 | PxeBc = &Private->PxeBc;\r | |
891 | Request = Private->Dhcp6Request;\r | |
892 | IndexOffer = &Private->OfferBuffer[Index].Dhcp6.Packet.Offer;\r | |
893 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
894 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
895 | OpFlags = 0;\r | |
129b8b09 | 896 | \r |
897 | if (Request == NULL) {\r | |
898 | return EFI_DEVICE_ERROR;\r | |
899 | }\r | |
900 | \r | |
901 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
902 | if (Discover == NULL) {\r | |
903 | return EFI_OUT_OF_RESOURCES;\r | |
904 | }\r | |
905 | \r | |
906 | //\r | |
907 | // Build the request packet by the cached request packet before.\r | |
908 | //\r | |
be37315a | 909 | Discover->TransactionId = IndexOffer->Dhcp6.Header.TransactionId;\r |
129b8b09 | 910 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r |
911 | RequestOpt = Request->Dhcp6.Option;\r | |
912 | DiscoverOpt = Discover->DhcpOptions;\r | |
913 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
914 | RequestLen = DiscoverLen;\r | |
915 | \r | |
916 | //\r | |
917 | // Find Server ID Option from ProxyOffer.\r | |
918 | //\r | |
f75a7f56 | 919 | if (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl) {\r |
be37315a JW |
920 | Option = PxeBcDhcp6SeekOption (\r |
921 | IndexOffer->Dhcp6.Option,\r | |
922 | IndexOffer->Length - 4,\r | |
923 | DHCP6_OPT_SERVER_ID\r | |
924 | );\r | |
925 | if (Option == NULL) {\r | |
926 | return EFI_NOT_FOUND;\r | |
927 | }\r | |
f75a7f56 | 928 | \r |
be37315a JW |
929 | //\r |
930 | // Add Server ID Option.\r | |
931 | //\r | |
d1050b9d | 932 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *)Option)->OpLen);\r |
be37315a JW |
933 | CopyMem (DiscoverOpt, Option, OpLen + 4);\r |
934 | DiscoverOpt += (OpLen + 4);\r | |
935 | DiscoverLen += (OpLen + 4);\r | |
936 | }\r | |
129b8b09 | 937 | \r |
938 | while (RequestLen < Request->Length) {\r | |
d1050b9d MK |
939 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpCode);\r |
940 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpLen);\r | |
941 | if ((OpCode != EFI_DHCP6_IA_TYPE_NA) &&\r | |
942 | (OpCode != EFI_DHCP6_IA_TYPE_TA) &&\r | |
943 | (OpCode != DHCP6_OPT_SERVER_ID)\r | |
944 | )\r | |
945 | {\r | |
129b8b09 | 946 | //\r |
947 | // Copy all the options except IA option and Server ID\r | |
948 | //\r | |
949 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
950 | DiscoverOpt += (OpLen + 4);\r | |
951 | DiscoverLen += (OpLen + 4);\r | |
952 | }\r | |
d1050b9d | 953 | \r |
129b8b09 | 954 | RequestOpt += (OpLen + 4);\r |
955 | RequestLen += (OpLen + 4);\r | |
956 | }\r | |
957 | \r | |
958 | //\r | |
f75a7f56 | 959 | // Update Elapsed option in the package\r |
129b8b09 | 960 | //\r |
961 | Option = PxeBcDhcp6SeekOption (\r | |
962 | Discover->DhcpOptions,\r | |
963 | (UINT32)(RequestLen - 4),\r | |
142c00c3 | 964 | DHCP6_OPT_ELAPSED_TIME\r |
129b8b09 | 965 | );\r |
966 | if (Option != NULL) {\r | |
967 | CalcElapsedTime (Private);\r | |
d1050b9d | 968 | WriteUnaligned16 ((UINT16 *)(Option + 4), HTONS ((UINT16)Private->ElapsedTime));\r |
f75a7f56 | 969 | }\r |
129b8b09 | 970 | \r |
971 | Status = PxeBc->UdpWrite (\r | |
972 | PxeBc,\r | |
973 | OpFlags,\r | |
974 | &Private->ServerIp,\r | |
975 | &DestPort,\r | |
976 | NULL,\r | |
977 | &Private->StationIp,\r | |
978 | &SrcPort,\r | |
979 | NULL,\r | |
980 | NULL,\r | |
981 | &DiscoverLen,\r | |
d1050b9d | 982 | (VOID *)Discover\r |
129b8b09 | 983 | );\r |
984 | \r | |
985 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 986 | goto ON_ERROR;\r |
129b8b09 | 987 | }\r |
988 | \r | |
989 | //\r | |
990 | // Cache the right PXE reply packet here, set valid flag later.\r | |
991 | // Especially for PXE discover packet, store it into mode data here.\r | |
992 | //\r | |
d1050b9d MK |
993 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r |
994 | ReadSize = (UINTN)Reply->Size;\r | |
129b8b09 | 995 | \r |
996 | //\r | |
997 | // Start Udp6Read instance\r | |
998 | //\r | |
999 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
1000 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 1001 | goto ON_ERROR;\r |
129b8b09 | 1002 | }\r |
f75a7f56 | 1003 | \r |
129b8b09 | 1004 | Status = PxeBc->UdpRead (\r |
1005 | PxeBc,\r | |
903d1fa9 FS |
1006 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
1007 | NULL,\r | |
129b8b09 | 1008 | &SrcPort,\r |
1009 | &Private->ServerIp,\r | |
1010 | &DestPort,\r | |
1011 | NULL,\r | |
1012 | NULL,\r | |
1013 | &ReadSize,\r | |
d1050b9d | 1014 | (VOID *)&Reply->Dhcp6\r |
129b8b09 | 1015 | );\r |
1016 | //\r | |
1017 | // Stop Udp6Read instance\r | |
1018 | //\r | |
1019 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
1020 | \r | |
1021 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 1022 | goto ON_ERROR;\r |
129b8b09 | 1023 | }\r |
1024 | \r | |
1025 | //\r | |
1026 | // Update length\r | |
1027 | //\r | |
d1050b9d | 1028 | Reply->Length = (UINT32)ReadSize;\r |
129b8b09 | 1029 | \r |
1030 | return EFI_SUCCESS;\r | |
f75a7f56 | 1031 | \r |
2fad330f FS |
1032 | ON_ERROR:\r |
1033 | if (Discover != NULL) {\r | |
1034 | FreePool (Discover);\r | |
1035 | }\r | |
1036 | \r | |
1037 | return Status;\r | |
129b8b09 | 1038 | }\r |
1039 | \r | |
a3bcde70 HT |
1040 | /**\r |
1041 | Retry to request bootfile name by the BINL offer.\r | |
1042 | \r | |
1043 | @param[in] Private The pointer to PxeBc private data.\r | |
1044 | @param[in] Index The received order of offer packets.\r | |
1045 | \r | |
1046 | @retval EFI_SUCCESS Successfully retried a request for the bootfile name.\r | |
1047 | @retval EFI_DEVICE_ERROR Failed to retry the bootfile name.\r | |
1048 | \r | |
1049 | **/\r | |
1050 | EFI_STATUS\r | |
1051 | PxeBcRetryDhcp6Binl (\r | |
1052 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1053 | IN UINT32 Index\r | |
1054 | )\r | |
1055 | {\r | |
1056 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1057 | PXEBC_DHCP6_PACKET_CACHE *Offer;\r | |
1058 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
a3bcde70 HT |
1059 | EFI_STATUS Status;\r |
1060 | \r | |
1061 | ASSERT (Index < PXEBC_OFFER_MAX_NUM);\r | |
d1050b9d MK |
1062 | ASSERT (\r |
1063 | Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeDhcpBinl ||\r | |
1064 | Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl\r | |
1065 | );\r | |
a3bcde70 HT |
1066 | \r |
1067 | Mode = Private->PxeBc.Mode;\r | |
1068 | Private->IsDoDiscover = FALSE;\r | |
1069 | Offer = &Private->OfferBuffer[Index].Dhcp6;\r | |
be37315a | 1070 | if (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {\r |
d40002ba | 1071 | //\r |
1072 | // There is no BootFileUrl option in dhcp6 offer, so use servers multi-cast address instead.\r | |
1073 | //\r | |
1074 | CopyMem (\r | |
1075 | &Private->ServerIp.v6,\r | |
1076 | &mAllDhcpRelayAndServersAddress,\r | |
1077 | sizeof (EFI_IPv6_ADDRESS)\r | |
1078 | );\r | |
1079 | } else {\r | |
1080 | ASSERT (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1081 | //\r | |
1082 | // Parse out the next server address from the last offer, and store it\r | |
1083 | //\r | |
1084 | Status = PxeBcExtractBootFileUrl (\r | |
6692d519 | 1085 | Private,\r |
d40002ba | 1086 | &Private->BootFileName,\r |
1087 | &Private->ServerIp.v6,\r | |
d1050b9d | 1088 | (CHAR8 *)(Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->Data),\r |
d40002ba | 1089 | NTOHS (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->OpLen)\r |
1090 | );\r | |
1091 | if (EFI_ERROR (Status)) {\r | |
1092 | return Status;\r | |
1093 | }\r | |
a3bcde70 HT |
1094 | }\r |
1095 | \r | |
1096 | //\r | |
1097 | // Retry Dhcp6Binl again for the bootfile, and the reply cached into Private->ProxyOffer.\r | |
1098 | //\r | |
129b8b09 | 1099 | Status = PxeBcRequestBootService (Private, Index);\r |
1100 | \r | |
a3bcde70 HT |
1101 | if (EFI_ERROR (Status)) {\r |
1102 | return Status;\r | |
1103 | }\r | |
1104 | \r | |
1105 | Cache6 = &Private->ProxyOffer.Dhcp6;\r | |
1106 | Status = PxeBcParseDhcp6Packet (Cache6);\r | |
1107 | if (EFI_ERROR (Status)) {\r | |
1108 | return Status;\r | |
1109 | }\r | |
1110 | \r | |
d1050b9d MK |
1111 | if ((Cache6->OfferType != PxeOfferTypeProxyPxe10) &&\r |
1112 | (Cache6->OfferType != PxeOfferTypeProxyWfm11a) &&\r | |
1113 | (Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL))\r | |
1114 | {\r | |
a3bcde70 HT |
1115 | //\r |
1116 | // This BINL ack doesn't have discovery option set or multicast option set\r | |
1117 | // or bootfile name specified.\r | |
1118 | //\r | |
1119 | return EFI_DEVICE_ERROR;\r | |
1120 | }\r | |
1121 | \r | |
1122 | Mode->ProxyOfferReceived = TRUE;\r | |
1123 | CopyMem (\r | |
1124 | &Mode->ProxyOffer.Dhcpv6,\r | |
1125 | &Cache6->Packet.Offer.Dhcp6,\r | |
1126 | Cache6->Packet.Offer.Length\r | |
1127 | );\r | |
1128 | \r | |
1129 | return EFI_SUCCESS;\r | |
1130 | }\r | |
1131 | \r | |
a3bcde70 HT |
1132 | /**\r |
1133 | Cache all the received DHCPv6 offers, and set OfferIndex and OfferCount.\r | |
1134 | \r | |
1135 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1136 | @param[in] RcvdOffer The pointer to the received offer packet.\r | |
1137 | \r | |
a35dc649 FS |
1138 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
1139 | @retval Others Operation failed.\r | |
a3bcde70 | 1140 | **/\r |
a35dc649 | 1141 | EFI_STATUS\r |
a3bcde70 | 1142 | PxeBcCacheDhcp6Offer (\r |
d1050b9d MK |
1143 | IN PXEBC_PRIVATE_DATA *Private,\r |
1144 | IN EFI_DHCP6_PACKET *RcvdOffer\r | |
a3bcde70 HT |
1145 | )\r |
1146 | {\r | |
1147 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r | |
1148 | EFI_DHCP6_PACKET *Offer;\r | |
1149 | PXEBC_OFFER_TYPE OfferType;\r | |
a35dc649 | 1150 | EFI_STATUS Status;\r |
a3bcde70 HT |
1151 | \r |
1152 | Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;\r | |
1153 | Offer = &Cache6->Packet.Offer;\r | |
1154 | \r | |
1155 | //\r | |
1156 | // Cache the content of DHCPv6 packet firstly.\r | |
1157 | //\r | |
a35dc649 FS |
1158 | Status = PxeBcCacheDhcp6Packet (Offer, RcvdOffer);\r |
1159 | if (EFI_ERROR (Status)) {\r | |
1160 | return Status;\r | |
1161 | }\r | |
a3bcde70 HT |
1162 | \r |
1163 | //\r | |
1164 | // Validate the DHCPv6 packet, and parse the options and offer type.\r | |
1165 | //\r | |
1166 | if (EFI_ERROR (PxeBcParseDhcp6Packet (Cache6))) {\r | |
a35dc649 | 1167 | return EFI_ABORTED;\r |
a3bcde70 HT |
1168 | }\r |
1169 | \r | |
1170 | //\r | |
1171 | // Determine whether cache the current offer by type, and record OfferIndex and OfferCount.\r | |
1172 | //\r | |
1173 | OfferType = Cache6->OfferType;\r | |
1174 | ASSERT (OfferType < PxeOfferTypeMax);\r | |
1175 | ASSERT (Private->OfferCount[OfferType] < PXEBC_OFFER_MAX_NUM);\r | |
1176 | \r | |
1177 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1178 | //\r | |
1179 | // It's a proxy offer without yiaddr, including PXE10, WFM11a or BINL offer.\r | |
1180 | //\r | |
1181 | Private->IsProxyRecved = TRUE;\r | |
1182 | \r | |
1183 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1184 | //\r | |
1185 | // Cache all proxy BINL offers.\r | |
1186 | //\r | |
1187 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1188 | Private->OfferCount[OfferType]++;\r | |
d1050b9d MK |
1189 | } else if (((OfferType == PxeOfferTypeProxyPxe10) || (OfferType == PxeOfferTypeProxyWfm11a)) &&\r |
1190 | (Private->OfferCount[OfferType] < 1))\r | |
1191 | {\r | |
a3bcde70 HT |
1192 | //\r |
1193 | // Only cache the first PXE10/WFM11a offer, and discard the others.\r | |
1194 | //\r | |
1195 | Private->OfferIndex[OfferType][0] = Private->OfferNum;\r | |
1196 | Private->OfferCount[OfferType] = 1;\r | |
1197 | } else {\r | |
a35dc649 | 1198 | return EFI_ABORTED;\r |
a3bcde70 HT |
1199 | }\r |
1200 | } else {\r | |
1201 | //\r | |
1202 | // It's a DHCPv6 offer with yiaddr, and cache them all.\r | |
1203 | //\r | |
1204 | Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r | |
1205 | Private->OfferCount[OfferType]++;\r | |
1206 | }\r | |
1207 | \r | |
1208 | Private->OfferNum++;\r | |
a35dc649 FS |
1209 | \r |
1210 | return EFI_SUCCESS;\r | |
a3bcde70 HT |
1211 | }\r |
1212 | \r | |
a3bcde70 HT |
1213 | /**\r |
1214 | Select an DHCPv6 offer, and record SelectIndex and SelectProxyType.\r | |
1215 | \r | |
1216 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1217 | \r | |
1218 | **/\r | |
1219 | VOID\r | |
1220 | PxeBcSelectDhcp6Offer (\r | |
d1050b9d | 1221 | IN PXEBC_PRIVATE_DATA *Private\r |
a3bcde70 HT |
1222 | )\r |
1223 | {\r | |
d1050b9d MK |
1224 | UINT32 Index;\r |
1225 | UINT32 OfferIndex;\r | |
1226 | PXEBC_OFFER_TYPE OfferType;\r | |
a3bcde70 HT |
1227 | \r |
1228 | Private->SelectIndex = 0;\r | |
1229 | \r | |
1230 | if (Private->IsOfferSorted) {\r | |
1231 | //\r | |
1232 | // Select offer by default policy.\r | |
1233 | //\r | |
1234 | if (Private->OfferCount[PxeOfferTypeDhcpPxe10] > 0) {\r | |
1235 | //\r | |
1236 | // 1. DhcpPxe10 offer\r | |
1237 | //\r | |
1238 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpPxe10][0] + 1;\r | |
a3bcde70 HT |
1239 | } else if (Private->OfferCount[PxeOfferTypeDhcpWfm11a] > 0) {\r |
1240 | //\r | |
1241 | // 2. DhcpWfm11a offer\r | |
1242 | //\r | |
1243 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpWfm11a][0] + 1;\r | |
d1050b9d MK |
1244 | } else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&\r |
1245 | (Private->OfferCount[PxeOfferTypeProxyPxe10] > 0))\r | |
1246 | {\r | |
a3bcde70 HT |
1247 | //\r |
1248 | // 3. DhcpOnly offer and ProxyPxe10 offer.\r | |
1249 | //\r | |
1250 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1251 | Private->SelectProxyType = PxeOfferTypeProxyPxe10;\r | |
d1050b9d MK |
1252 | } else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&\r |
1253 | (Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0))\r | |
1254 | {\r | |
a3bcde70 HT |
1255 | //\r |
1256 | // 4. DhcpOnly offer and ProxyWfm11a offer.\r | |
1257 | //\r | |
1258 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1259 | Private->SelectProxyType = PxeOfferTypeProxyWfm11a;\r | |
a3bcde70 HT |
1260 | } else if (Private->OfferCount[PxeOfferTypeDhcpBinl] > 0) {\r |
1261 | //\r | |
1262 | // 5. DhcpBinl offer.\r | |
1263 | //\r | |
1264 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpBinl][0] + 1;\r | |
d1050b9d MK |
1265 | } else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&\r |
1266 | (Private->OfferCount[PxeOfferTypeProxyBinl] > 0))\r | |
1267 | {\r | |
a3bcde70 HT |
1268 | //\r |
1269 | // 6. DhcpOnly offer and ProxyBinl offer.\r | |
1270 | //\r | |
1271 | Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r | |
1272 | Private->SelectProxyType = PxeOfferTypeProxyBinl;\r | |
a3bcde70 HT |
1273 | } else {\r |
1274 | //\r | |
1275 | // 7. DhcpOnly offer with bootfilename.\r | |
1276 | //\r | |
1277 | for (Index = 0; Index < Private->OfferCount[PxeOfferTypeDhcpOnly]; Index++) {\r | |
1278 | OfferIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][Index];\r | |
1279 | if (Private->OfferBuffer[OfferIndex].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL) {\r | |
1280 | Private->SelectIndex = OfferIndex + 1;\r | |
1281 | break;\r | |
1282 | }\r | |
1283 | }\r | |
1284 | }\r | |
1285 | } else {\r | |
1286 | //\r | |
1287 | // Select offer by received order.\r | |
1288 | //\r | |
1289 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
a3bcde70 HT |
1290 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r |
1291 | \r | |
1292 | if (IS_PROXY_OFFER (OfferType)) {\r | |
1293 | //\r | |
1294 | // Skip proxy offers\r | |
1295 | //\r | |
1296 | continue;\r | |
1297 | }\r | |
1298 | \r | |
1299 | if (!Private->IsProxyRecved &&\r | |
d1050b9d MK |
1300 | (OfferType == PxeOfferTypeDhcpOnly) &&\r |
1301 | (Private->OfferBuffer[Index].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL))\r | |
1302 | {\r | |
a3bcde70 HT |
1303 | //\r |
1304 | // Skip if DhcpOnly offer without any other proxy offers or bootfilename.\r | |
1305 | //\r | |
1306 | continue;\r | |
1307 | }\r | |
1308 | \r | |
1309 | Private->SelectIndex = Index + 1;\r | |
1310 | break;\r | |
1311 | }\r | |
1312 | }\r | |
1313 | }\r | |
1314 | \r | |
a3bcde70 HT |
1315 | /**\r |
1316 | Handle the DHCPv6 offer packet.\r | |
1317 | \r | |
1318 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1319 | \r | |
92ec8772 ZL |
1320 | @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.\r |
1321 | @retval EFI_NO_RESPONSE No response to the following request packet.\r | |
1322 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
a35dc649 | 1323 | @retval EFI_BUFFER_TOO_SMALL Can't cache the offer pacet.\r |
a3bcde70 HT |
1324 | \r |
1325 | **/\r | |
1326 | EFI_STATUS\r | |
1327 | PxeBcHandleDhcp6Offer (\r | |
d1050b9d | 1328 | IN PXEBC_PRIVATE_DATA *Private\r |
a3bcde70 HT |
1329 | )\r |
1330 | {\r | |
d1050b9d MK |
1331 | PXEBC_DHCP6_PACKET_CACHE *Cache6;\r |
1332 | EFI_STATUS Status;\r | |
1333 | PXEBC_OFFER_TYPE OfferType;\r | |
1334 | UINT32 ProxyIndex;\r | |
1335 | UINT32 SelectIndex;\r | |
1336 | UINT32 Index;\r | |
a3bcde70 HT |
1337 | \r |
1338 | ASSERT (Private->SelectIndex > 0);\r | |
d1050b9d | 1339 | SelectIndex = (UINT32)(Private->SelectIndex - 1);\r |
a3bcde70 | 1340 | ASSERT (SelectIndex < PXEBC_OFFER_MAX_NUM);\r |
d1050b9d MK |
1341 | Cache6 = &Private->OfferBuffer[SelectIndex].Dhcp6;\r |
1342 | Status = EFI_SUCCESS;\r | |
a3bcde70 | 1343 | \r |
6692d519 ZL |
1344 | //\r |
1345 | // First try to cache DNS server address if DHCP6 offer provides.\r | |
1346 | //\r | |
1347 | if (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] != NULL) {\r | |
1348 | Private->DnsServer = AllocateZeroPool (NTOHS (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen));\r | |
92ec8772 ZL |
1349 | if (Private->DnsServer == NULL) {\r |
1350 | return EFI_OUT_OF_RESOURCES;\r | |
1351 | }\r | |
d1050b9d | 1352 | \r |
6692d519 ZL |
1353 | CopyMem (Private->DnsServer, Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, sizeof (EFI_IPv6_ADDRESS));\r |
1354 | }\r | |
1355 | \r | |
a3bcde70 HT |
1356 | if (Cache6->OfferType == PxeOfferTypeDhcpBinl) {\r |
1357 | //\r | |
1358 | // DhcpBinl offer is selected, so need try to request bootfilename by this offer.\r | |
1359 | //\r | |
1360 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, SelectIndex))) {\r | |
1361 | Status = EFI_NO_RESPONSE;\r | |
1362 | }\r | |
1363 | } else if (Cache6->OfferType == PxeOfferTypeDhcpOnly) {\r | |
a3bcde70 HT |
1364 | if (Private->IsProxyRecved) {\r |
1365 | //\r | |
1366 | // DhcpOnly offer is selected, so need try to request bootfilename.\r | |
1367 | //\r | |
1368 | ProxyIndex = 0;\r | |
1369 | if (Private->IsOfferSorted) {\r | |
1370 | //\r | |
1371 | // The proxy offer should be determined if select by default policy.\r | |
1372 | // IsOfferSorted means all offers are labeled by OfferIndex.\r | |
1373 | //\r | |
1374 | ASSERT (Private->OfferCount[Private->SelectProxyType] > 0);\r | |
1375 | \r | |
1376 | if (Private->SelectProxyType == PxeOfferTypeProxyBinl) {\r | |
1377 | //\r | |
1378 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1379 | //\r | |
1380 | for (Index = 0; Index < Private->OfferCount[Private->SelectProxyType]; Index++) {\r | |
a3bcde70 HT |
1381 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][Index];\r |
1382 | if (!EFI_ERROR (PxeBcRetryDhcp6Binl (Private, ProxyIndex))) {\r | |
1383 | break;\r | |
1384 | }\r | |
1385 | }\r | |
d1050b9d | 1386 | \r |
a3bcde70 HT |
1387 | if (Index == Private->OfferCount[Private->SelectProxyType]) {\r |
1388 | Status = EFI_NO_RESPONSE;\r | |
1389 | }\r | |
1390 | } else {\r | |
1391 | //\r | |
1392 | // For other proxy offers (pxe10 or wfm11a), only one is buffered.\r | |
1393 | //\r | |
1394 | ProxyIndex = Private->OfferIndex[Private->SelectProxyType][0];\r | |
1395 | }\r | |
1396 | } else {\r | |
1397 | //\r | |
1398 | // The proxy offer should not be determined if select by received order.\r | |
1399 | //\r | |
1400 | Status = EFI_NO_RESPONSE;\r | |
1401 | \r | |
1402 | for (Index = 0; Index < Private->OfferNum; Index++) {\r | |
a3bcde70 HT |
1403 | OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;\r |
1404 | \r | |
1405 | if (!IS_PROXY_OFFER (OfferType)) {\r | |
1406 | //\r | |
1407 | // Skip non proxy dhcp offers.\r | |
1408 | //\r | |
1409 | continue;\r | |
1410 | }\r | |
1411 | \r | |
1412 | if (OfferType == PxeOfferTypeProxyBinl) {\r | |
1413 | //\r | |
1414 | // Try all the cached ProxyBinl offer one by one to request bootfilename.\r | |
1415 | //\r | |
1416 | if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, Index))) {\r | |
1417 | continue;\r | |
1418 | }\r | |
1419 | }\r | |
1420 | \r | |
1421 | Private->SelectProxyType = OfferType;\r | |
1422 | ProxyIndex = Index;\r | |
1423 | Status = EFI_SUCCESS;\r | |
1424 | break;\r | |
1425 | }\r | |
1426 | }\r | |
1427 | \r | |
d1050b9d | 1428 | if (!EFI_ERROR (Status) && (Private->SelectProxyType != PxeOfferTypeProxyBinl)) {\r |
a3bcde70 HT |
1429 | //\r |
1430 | // Success to try to request by a ProxyPxe10 or ProxyWfm11a offer, copy and parse it.\r | |
1431 | //\r | |
a35dc649 | 1432 | Status = PxeBcCopyDhcp6Proxy (Private, ProxyIndex);\r |
a3bcde70 HT |
1433 | }\r |
1434 | } else {\r | |
1435 | //\r | |
5add2c55 | 1436 | // Otherwise, the bootfilename must be included in DhcpOnly offer.\r |
a3bcde70 HT |
1437 | //\r |
1438 | ASSERT (Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);\r | |
1439 | }\r | |
1440 | }\r | |
1441 | \r | |
1442 | if (!EFI_ERROR (Status)) {\r | |
1443 | //\r | |
1444 | // All PXE boot information is ready by now.\r | |
1445 | //\r | |
d1050b9d | 1446 | Status = PxeBcCopyDhcp6Ack (Private, &Private->DhcpAck.Dhcp6.Packet.Ack, TRUE);\r |
a3bcde70 HT |
1447 | Private->PxeBc.Mode->DhcpDiscoverValid = TRUE;\r |
1448 | }\r | |
1449 | \r | |
1450 | return Status;\r | |
1451 | }\r | |
1452 | \r | |
a3bcde70 HT |
1453 | /**\r |
1454 | Unregister the address by Ip6Config protocol.\r | |
1455 | \r | |
1456 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1457 | \r | |
1458 | **/\r | |
1459 | VOID\r | |
1460 | PxeBcUnregisterIp6Address (\r | |
d1050b9d | 1461 | IN PXEBC_PRIVATE_DATA *Private\r |
a3bcde70 HT |
1462 | )\r |
1463 | {\r | |
1464 | if (Private->Ip6Policy != PXEBC_IP6_POLICY_MAX) {\r | |
1465 | //\r | |
1466 | // PXE driver change the policy of IP6 driver, it's a chance to recover.\r | |
1467 | // Keep the point and there is no enough requirements to do recovery.\r | |
1468 | //\r | |
1469 | }\r | |
1470 | }\r | |
1471 | \r | |
ae97201c FS |
1472 | /**\r |
1473 | Check whether IP driver could route the message which will be sent to ServerIp address.\r | |
f75a7f56 | 1474 | \r |
ae97201c FS |
1475 | This function will check the IP6 route table every 1 seconds until specified timeout is expired, if a valid\r |
1476 | route is found in IP6 route table, the address will be filed in GatewayAddr and return.\r | |
1477 | \r | |
1478 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1479 | @param[in] TimeOutInSecond Timeout value in seconds.\r | |
1480 | @param[out] GatewayAddr Pointer to store the gateway IP address.\r | |
1481 | \r | |
1482 | @retval EFI_SUCCESS Found a valid gateway address successfully.\r | |
1483 | @retval EFI_TIMEOUT The operation is time out.\r | |
5add2c55 | 1484 | @retval Other Unexpected error happened.\r |
f75a7f56 | 1485 | \r |
ae97201c FS |
1486 | **/\r |
1487 | EFI_STATUS\r | |
1488 | PxeBcCheckRouteTable (\r | |
d1050b9d MK |
1489 | IN PXEBC_PRIVATE_DATA *Private,\r |
1490 | IN UINTN TimeOutInSecond,\r | |
1491 | OUT EFI_IPv6_ADDRESS *GatewayAddr\r | |
ae97201c FS |
1492 | )\r |
1493 | {\r | |
d1050b9d MK |
1494 | EFI_STATUS Status;\r |
1495 | EFI_IP6_PROTOCOL *Ip6;\r | |
1496 | EFI_IP6_MODE_DATA Ip6ModeData;\r | |
1497 | UINTN Index;\r | |
1498 | EFI_EVENT TimeOutEvt;\r | |
1499 | UINTN RetryCount;\r | |
1500 | BOOLEAN GatewayIsFound;\r | |
ae97201c FS |
1501 | \r |
1502 | ASSERT (GatewayAddr != NULL);\r | |
1503 | ASSERT (Private != NULL);\r | |
1504 | \r | |
1505 | Ip6 = Private->Ip6;\r | |
1506 | GatewayIsFound = FALSE;\r | |
1507 | RetryCount = 0;\r | |
1508 | TimeOutEvt = NULL;\r | |
1509 | ZeroMem (GatewayAddr, sizeof (EFI_IPv6_ADDRESS));\r | |
1510 | \r | |
1511 | while (TRUE) {\r | |
1512 | Status = Ip6->GetModeData (Ip6, &Ip6ModeData, NULL, NULL);\r | |
1513 | if (EFI_ERROR (Status)) {\r | |
1514 | goto ON_EXIT;\r | |
1515 | }\r | |
1516 | \r | |
1517 | //\r | |
07f986f1 | 1518 | // Find out the gateway address which can route the message which send to ServerIp.\r |
ae97201c FS |
1519 | //\r |
1520 | for (Index = 0; Index < Ip6ModeData.RouteCount; Index++) {\r | |
1521 | if (NetIp6IsNetEqual (&Private->ServerIp.v6, &Ip6ModeData.RouteTable[Index].Destination, Ip6ModeData.RouteTable[Index].PrefixLength)) {\r | |
1522 | IP6_COPY_ADDRESS (GatewayAddr, &Ip6ModeData.RouteTable[Index].Gateway);\r | |
1523 | GatewayIsFound = TRUE;\r | |
1524 | break;\r | |
1525 | }\r | |
1526 | }\r | |
1527 | \r | |
1528 | if (Ip6ModeData.AddressList != NULL) {\r | |
1529 | FreePool (Ip6ModeData.AddressList);\r | |
1530 | }\r | |
d1050b9d | 1531 | \r |
ae97201c FS |
1532 | if (Ip6ModeData.GroupTable != NULL) {\r |
1533 | FreePool (Ip6ModeData.GroupTable);\r | |
1534 | }\r | |
d1050b9d | 1535 | \r |
ae97201c FS |
1536 | if (Ip6ModeData.RouteTable != NULL) {\r |
1537 | FreePool (Ip6ModeData.RouteTable);\r | |
1538 | }\r | |
d1050b9d | 1539 | \r |
ae97201c FS |
1540 | if (Ip6ModeData.NeighborCache != NULL) {\r |
1541 | FreePool (Ip6ModeData.NeighborCache);\r | |
1542 | }\r | |
d1050b9d | 1543 | \r |
ae97201c FS |
1544 | if (Ip6ModeData.PrefixTable != NULL) {\r |
1545 | FreePool (Ip6ModeData.PrefixTable);\r | |
1546 | }\r | |
d1050b9d | 1547 | \r |
ae97201c FS |
1548 | if (Ip6ModeData.IcmpTypeList != NULL) {\r |
1549 | FreePool (Ip6ModeData.IcmpTypeList);\r | |
1550 | }\r | |
f75a7f56 | 1551 | \r |
d1050b9d | 1552 | if (GatewayIsFound || (RetryCount == TimeOutInSecond)) {\r |
ae97201c FS |
1553 | break;\r |
1554 | }\r | |
f75a7f56 | 1555 | \r |
ae97201c | 1556 | RetryCount++;\r |
f75a7f56 | 1557 | \r |
ae97201c FS |
1558 | //\r |
1559 | // Delay 1 second then recheck it again.\r | |
1560 | //\r | |
1561 | if (TimeOutEvt == NULL) {\r | |
1562 | Status = gBS->CreateEvent (\r | |
1563 | EVT_TIMER,\r | |
1564 | TPL_CALLBACK,\r | |
1565 | NULL,\r | |
1566 | NULL,\r | |
1567 | &TimeOutEvt\r | |
1568 | );\r | |
1569 | if (EFI_ERROR (Status)) {\r | |
1570 | goto ON_EXIT;\r | |
1571 | }\r | |
1572 | }\r | |
1573 | \r | |
1574 | Status = gBS->SetTimer (TimeOutEvt, TimerRelative, TICKS_PER_SECOND);\r | |
1575 | if (EFI_ERROR (Status)) {\r | |
1576 | goto ON_EXIT;\r | |
1577 | }\r | |
d1050b9d | 1578 | \r |
ae97201c FS |
1579 | while (EFI_ERROR (gBS->CheckEvent (TimeOutEvt))) {\r |
1580 | Ip6->Poll (Ip6);\r | |
1581 | }\r | |
1582 | }\r | |
f75a7f56 | 1583 | \r |
ae97201c FS |
1584 | ON_EXIT:\r |
1585 | if (TimeOutEvt != NULL) {\r | |
1586 | gBS->CloseEvent (TimeOutEvt);\r | |
1587 | }\r | |
f75a7f56 | 1588 | \r |
ae97201c FS |
1589 | if (GatewayIsFound) {\r |
1590 | Status = EFI_SUCCESS;\r | |
1591 | } else if (RetryCount == TimeOutInSecond) {\r | |
1592 | Status = EFI_TIMEOUT;\r | |
1593 | }\r | |
1594 | \r | |
f75a7f56 | 1595 | return Status;\r |
ae97201c | 1596 | }\r |
a3bcde70 HT |
1597 | \r |
1598 | /**\r | |
ae97201c | 1599 | Register the ready station address and gateway by Ip6Config protocol.\r |
a3bcde70 HT |
1600 | \r |
1601 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1602 | @param[in] Address The pointer to the ready address.\r | |
1603 | \r | |
5add2c55 | 1604 | @retval EFI_SUCCESS Registered the address successfully.\r |
a3bcde70 HT |
1605 | @retval Others Failed to register the address.\r |
1606 | \r | |
1607 | **/\r | |
1608 | EFI_STATUS\r | |
1609 | PxeBcRegisterIp6Address (\r | |
d1050b9d MK |
1610 | IN PXEBC_PRIVATE_DATA *Private,\r |
1611 | IN EFI_IPv6_ADDRESS *Address\r | |
a3bcde70 HT |
1612 | )\r |
1613 | {\r | |
d1050b9d MK |
1614 | EFI_IP6_PROTOCOL *Ip6;\r |
1615 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1616 | EFI_IP6_CONFIG_POLICY Policy;\r | |
1617 | EFI_IP6_CONFIG_MANUAL_ADDRESS CfgAddr;\r | |
1618 | EFI_IPv6_ADDRESS GatewayAddr;\r | |
1619 | UINTN DataSize;\r | |
1620 | EFI_EVENT MappedEvt;\r | |
1621 | EFI_STATUS Status;\r | |
1622 | BOOLEAN NoGateway;\r | |
1623 | EFI_IPv6_ADDRESS *Ip6Addr;\r | |
1624 | UINTN Index;\r | |
1625 | \r | |
1626 | Status = EFI_SUCCESS;\r | |
1627 | MappedEvt = NULL;\r | |
1628 | Ip6Addr = NULL;\r | |
1629 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r | |
1630 | Ip6Cfg = Private->Ip6Cfg;\r | |
1631 | Ip6 = Private->Ip6;\r | |
1632 | NoGateway = FALSE;\r | |
a3bcde70 HT |
1633 | \r |
1634 | ZeroMem (&CfgAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));\r | |
1635 | CopyMem (&CfgAddr.Address, Address, sizeof (EFI_IPv6_ADDRESS));\r | |
1636 | \r | |
ae97201c FS |
1637 | Status = Ip6->Configure (Ip6, &Private->Ip6CfgData);\r |
1638 | if (EFI_ERROR (Status)) {\r | |
1639 | goto ON_EXIT;\r | |
1640 | }\r | |
1641 | \r | |
a3bcde70 | 1642 | //\r |
ae97201c | 1643 | // Retrieve the gateway address from IP6 route table.\r |
a3bcde70 | 1644 | //\r |
ae97201c | 1645 | Status = PxeBcCheckRouteTable (Private, PXEBC_IP6_ROUTE_TABLE_TIMEOUT, &GatewayAddr);\r |
a3bcde70 | 1646 | if (EFI_ERROR (Status)) {\r |
07f986f1 | 1647 | NoGateway = TRUE;\r |
a3bcde70 | 1648 | }\r |
f75a7f56 | 1649 | \r |
a3bcde70 HT |
1650 | //\r |
1651 | // There is no channel between IP6 and PXE driver about address setting,\r | |
1652 | // so it has to set the new address by Ip6ConfigProtocol manually.\r | |
1653 | //\r | |
1654 | Policy = Ip6ConfigPolicyManual;\r | |
1655 | Status = Ip6Cfg->SetData (\r | |
1656 | Ip6Cfg,\r | |
1657 | Ip6ConfigDataTypePolicy,\r | |
d1050b9d | 1658 | sizeof (EFI_IP6_CONFIG_POLICY),\r |
a3bcde70 HT |
1659 | &Policy\r |
1660 | );\r | |
1661 | if (EFI_ERROR (Status)) {\r | |
1662 | //\r | |
1663 | // There is no need to recover later.\r | |
1664 | //\r | |
1665 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1666 | goto ON_EXIT;\r | |
1667 | }\r | |
1668 | \r | |
a3bcde70 HT |
1669 | //\r |
1670 | // Create a notify event to set address flag when DAD if IP6 driver succeeded.\r | |
1671 | //\r | |
1672 | Status = gBS->CreateEvent (\r | |
1673 | EVT_NOTIFY_SIGNAL,\r | |
1674 | TPL_NOTIFY,\r | |
1675 | PxeBcCommonNotify,\r | |
1676 | &Private->IsAddressOk,\r | |
1677 | &MappedEvt\r | |
1678 | );\r | |
1679 | if (EFI_ERROR (Status)) {\r | |
1680 | goto ON_EXIT;\r | |
1681 | }\r | |
1682 | \r | |
bf9f7cea | 1683 | Private->IsAddressOk = FALSE;\r |
d1050b9d MK |
1684 | Status = Ip6Cfg->RegisterDataNotify (\r |
1685 | Ip6Cfg,\r | |
1686 | Ip6ConfigDataTypeManualAddress,\r | |
1687 | MappedEvt\r | |
1688 | );\r | |
1689 | if (EFI_ERROR (Status)) {\r | |
a3bcde70 HT |
1690 | goto ON_EXIT;\r |
1691 | }\r | |
1692 | \r | |
1693 | Status = Ip6Cfg->SetData (\r | |
1694 | Ip6Cfg,\r | |
1695 | Ip6ConfigDataTypeManualAddress,\r | |
d1050b9d | 1696 | sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS),\r |
a3bcde70 HT |
1697 | &CfgAddr\r |
1698 | );\r | |
d1050b9d | 1699 | if (EFI_ERROR (Status) && (Status != EFI_NOT_READY)) {\r |
a3bcde70 | 1700 | goto ON_EXIT;\r |
bf9f7cea FS |
1701 | } else if (Status == EFI_NOT_READY) {\r |
1702 | //\r | |
1703 | // Poll the network until the asynchronous process is finished.\r | |
1704 | //\r | |
1705 | while (!Private->IsAddressOk) {\r | |
1706 | Ip6->Poll (Ip6);\r | |
1707 | }\r | |
d1050b9d | 1708 | \r |
bf9f7cea FS |
1709 | //\r |
1710 | // Check whether the IP6 address setting is successed.\r | |
1711 | //\r | |
1712 | DataSize = 0;\r | |
d1050b9d MK |
1713 | Status = Ip6Cfg->GetData (\r |
1714 | Ip6Cfg,\r | |
1715 | Ip6ConfigDataTypeManualAddress,\r | |
1716 | &DataSize,\r | |
1717 | NULL\r | |
1718 | );\r | |
1719 | if ((Status != EFI_BUFFER_TOO_SMALL) || (DataSize == 0)) {\r | |
bf9f7cea FS |
1720 | Status = EFI_DEVICE_ERROR;\r |
1721 | goto ON_EXIT;\r | |
1722 | }\r | |
a3bcde70 | 1723 | \r |
bf9f7cea FS |
1724 | Ip6Addr = AllocatePool (DataSize);\r |
1725 | if (Ip6Addr == NULL) {\r | |
1726 | return EFI_OUT_OF_RESOURCES;\r | |
1727 | }\r | |
d1050b9d | 1728 | \r |
bf9f7cea FS |
1729 | Status = Ip6Cfg->GetData (\r |
1730 | Ip6Cfg,\r | |
1731 | Ip6ConfigDataTypeManualAddress,\r | |
1732 | &DataSize,\r | |
d1050b9d | 1733 | (VOID *)Ip6Addr\r |
bf9f7cea FS |
1734 | );\r |
1735 | if (EFI_ERROR (Status)) {\r | |
1736 | Status = EFI_DEVICE_ERROR;\r | |
1737 | goto ON_EXIT;\r | |
1738 | }\r | |
a3bcde70 | 1739 | \r |
bf9f7cea FS |
1740 | for (Index = 0; Index < DataSize / sizeof (EFI_IPv6_ADDRESS); Index++) {\r |
1741 | if (CompareMem (Ip6Addr + Index, Address, sizeof (EFI_IPv6_ADDRESS)) == 0) {\r | |
1742 | break;\r | |
1743 | }\r | |
1744 | }\r | |
d1050b9d | 1745 | \r |
bf9f7cea FS |
1746 | if (Index == DataSize / sizeof (EFI_IPv6_ADDRESS)) {\r |
1747 | Status = EFI_ABORTED;\r | |
1748 | goto ON_EXIT;\r | |
a3bcde70 HT |
1749 | }\r |
1750 | }\r | |
f75a7f56 | 1751 | \r |
ae97201c FS |
1752 | //\r |
1753 | // Set the default gateway address back if needed.\r | |
1754 | //\r | |
07f986f1 | 1755 | if (!NoGateway && !NetIp6IsUnspecifiedAddr (&GatewayAddr)) {\r |
ae97201c FS |
1756 | Status = Ip6Cfg->SetData (\r |
1757 | Ip6Cfg,\r | |
1758 | Ip6ConfigDataTypeGateway,\r | |
1759 | sizeof (EFI_IPv6_ADDRESS),\r | |
1760 | &GatewayAddr\r | |
1761 | );\r | |
1762 | if (EFI_ERROR (Status)) {\r | |
1763 | goto ON_EXIT;\r | |
1764 | }\r | |
1765 | }\r | |
1766 | \r | |
a3bcde70 HT |
1767 | ON_EXIT:\r |
1768 | if (MappedEvt != NULL) {\r | |
1769 | Ip6Cfg->UnregisterDataNotify (\r | |
1770 | Ip6Cfg,\r | |
1771 | Ip6ConfigDataTypeManualAddress,\r | |
1772 | MappedEvt\r | |
1773 | );\r | |
1774 | gBS->CloseEvent (MappedEvt);\r | |
1775 | }\r | |
d1050b9d | 1776 | \r |
bf9f7cea FS |
1777 | if (Ip6Addr != NULL) {\r |
1778 | FreePool (Ip6Addr);\r | |
a3bcde70 | 1779 | }\r |
d1050b9d | 1780 | \r |
a3bcde70 HT |
1781 | return Status;\r |
1782 | }\r | |
1783 | \r | |
ae97201c FS |
1784 | /**\r |
1785 | Set the IP6 policy to Automatic.\r | |
1786 | \r | |
1787 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
1788 | \r | |
5add2c55 AC |
1789 | @retval EFI_SUCCESS Switch the IP policy successfully.\r |
1790 | @retval Others Unexpected error happened.\r | |
ae97201c FS |
1791 | \r |
1792 | **/\r | |
1793 | EFI_STATUS\r | |
1794 | PxeBcSetIp6Policy (\r | |
d1050b9d | 1795 | IN PXEBC_PRIVATE_DATA *Private\r |
ae97201c FS |
1796 | )\r |
1797 | {\r | |
d1050b9d MK |
1798 | EFI_IP6_CONFIG_POLICY Policy;\r |
1799 | EFI_STATUS Status;\r | |
1800 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
1801 | UINTN DataSize;\r | |
ae97201c | 1802 | \r |
d1050b9d MK |
1803 | Ip6Cfg = Private->Ip6Cfg;\r |
1804 | DataSize = sizeof (EFI_IP6_CONFIG_POLICY);\r | |
ae97201c FS |
1805 | \r |
1806 | //\r | |
1807 | // Get and store the current policy of IP6 driver.\r | |
1808 | //\r | |
1809 | Status = Ip6Cfg->GetData (\r | |
1810 | Ip6Cfg,\r | |
1811 | Ip6ConfigDataTypePolicy,\r | |
1812 | &DataSize,\r | |
1813 | &Private->Ip6Policy\r | |
1814 | );\r | |
1815 | if (EFI_ERROR (Status)) {\r | |
1816 | return Status;\r | |
1817 | }\r | |
1818 | \r | |
1819 | if (Private->Ip6Policy == Ip6ConfigPolicyManual) {\r | |
1820 | Policy = Ip6ConfigPolicyAutomatic;\r | |
1821 | Status = Ip6Cfg->SetData (\r | |
1822 | Ip6Cfg,\r | |
1823 | Ip6ConfigDataTypePolicy,\r | |
d1050b9d | 1824 | sizeof (EFI_IP6_CONFIG_POLICY),\r |
ae97201c FS |
1825 | &Policy\r |
1826 | );\r | |
1827 | if (EFI_ERROR (Status)) {\r | |
1828 | //\r | |
1829 | // There is no need to recover later.\r | |
1830 | //\r | |
1831 | Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r | |
1832 | }\r | |
1833 | }\r | |
1834 | \r | |
1835 | return Status;\r | |
1836 | }\r | |
1837 | \r | |
1838 | /**\r | |
1839 | This function will register the station IP address and flush IP instance to start using the new IP address.\r | |
f75a7f56 | 1840 | \r |
ae97201c FS |
1841 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r |
1842 | \r | |
1843 | @retval EFI_SUCCESS The new IP address has been configured successfully.\r | |
1844 | @retval Others Failed to configure the address.\r | |
1845 | \r | |
1846 | **/\r | |
1847 | EFI_STATUS\r | |
1848 | PxeBcSetIp6Address (\r | |
d1050b9d | 1849 | IN PXEBC_PRIVATE_DATA *Private\r |
ae97201c FS |
1850 | )\r |
1851 | {\r | |
d1050b9d MK |
1852 | EFI_STATUS Status;\r |
1853 | EFI_DHCP6_PROTOCOL *Dhcp6;\r | |
f75a7f56 | 1854 | \r |
ae97201c FS |
1855 | Dhcp6 = Private->Dhcp6;\r |
1856 | \r | |
1857 | CopyMem (&Private->StationIp.v6, &Private->TmpStationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1858 | CopyMem (&Private->PxeBc.Mode->StationIp.v6, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r | |
1859 | \r | |
1860 | Status = PxeBcRegisterIp6Address (Private, &Private->StationIp.v6);\r | |
1861 | if (EFI_ERROR (Status)) {\r | |
1862 | Dhcp6->Stop (Dhcp6);\r | |
1863 | return Status;\r | |
1864 | }\r | |
1865 | \r | |
1866 | Status = PxeBcFlushStationIp (Private, &Private->StationIp, NULL);\r | |
1867 | if (EFI_ERROR (Status)) {\r | |
1868 | PxeBcUnregisterIp6Address (Private);\r | |
1869 | Dhcp6->Stop (Dhcp6);\r | |
1870 | return Status;\r | |
1871 | }\r | |
1872 | \r | |
1873 | AsciiPrint ("\n Station IP address is ");\r | |
1874 | PxeBcShowIp6Addr (&Private->StationIp.v6);\r | |
1875 | \r | |
1876 | return EFI_SUCCESS;\r | |
1877 | }\r | |
a3bcde70 HT |
1878 | \r |
1879 | /**\r | |
1880 | EFI_DHCP6_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol driver\r | |
1881 | to intercept events that occurred in the configuration process.\r | |
1882 | \r | |
1883 | @param[in] This The pointer to the EFI DHCPv6 Protocol.\r | |
1884 | @param[in] Context The pointer to the context set by EFI_DHCP6_PROTOCOL.Configure().\r | |
1885 | @param[in] CurrentState The current operational state of the EFI DHCPv Protocol driver.\r | |
1886 | @param[in] Dhcp6Event The event that occurs in the current state, which usually means a\r | |
1887 | state transition.\r | |
1888 | @param[in] Packet The DHCPv6 packet that is going to be sent or was already received.\r | |
1889 | @param[out] NewPacket The packet that is used to replace the Packet above.\r | |
1890 | \r | |
1891 | @retval EFI_SUCCESS Told the EFI DHCPv6 Protocol driver to continue the DHCP process.\r | |
1892 | @retval EFI_NOT_READY Only used in the Dhcp6Selecting state. The EFI DHCPv6 Protocol\r | |
1893 | driver will continue to wait for more packets.\r | |
1894 | @retval EFI_ABORTED Told the EFI DHCPv6 Protocol driver to abort the current process.\r | |
1895 | \r | |
1896 | **/\r | |
1897 | EFI_STATUS\r | |
1898 | EFIAPI\r | |
1899 | PxeBcDhcp6CallBack (\r | |
d1050b9d MK |
1900 | IN EFI_DHCP6_PROTOCOL *This,\r |
1901 | IN VOID *Context,\r | |
1902 | IN EFI_DHCP6_STATE CurrentState,\r | |
1903 | IN EFI_DHCP6_EVENT Dhcp6Event,\r | |
1904 | IN EFI_DHCP6_PACKET *Packet,\r | |
1905 | OUT EFI_DHCP6_PACKET **NewPacket OPTIONAL\r | |
a3bcde70 HT |
1906 | )\r |
1907 | {\r | |
d1050b9d MK |
1908 | PXEBC_PRIVATE_DATA *Private;\r |
1909 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1910 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r | |
1911 | EFI_DHCP6_PACKET *SelectAd;\r | |
1912 | EFI_STATUS Status;\r | |
1913 | BOOLEAN Received;\r | |
a3bcde70 HT |
1914 | \r |
1915 | if ((Dhcp6Event != Dhcp6RcvdAdvertise) &&\r | |
1916 | (Dhcp6Event != Dhcp6SelectAdvertise) &&\r | |
1917 | (Dhcp6Event != Dhcp6SendSolicit) &&\r | |
1918 | (Dhcp6Event != Dhcp6SendRequest) &&\r | |
d1050b9d MK |
1919 | (Dhcp6Event != Dhcp6RcvdReply))\r |
1920 | {\r | |
a3bcde70 HT |
1921 | return EFI_SUCCESS;\r |
1922 | }\r | |
1923 | \r | |
1924 | ASSERT (Packet != NULL);\r | |
1925 | \r | |
d1050b9d MK |
1926 | Private = (PXEBC_PRIVATE_DATA *)Context;\r |
1927 | Mode = Private->PxeBc.Mode;\r | |
1928 | Callback = Private->PxeBcCallback;\r | |
a3bcde70 HT |
1929 | \r |
1930 | //\r | |
5add2c55 | 1931 | // Callback to user when any traffic occurred if has.\r |
a3bcde70 | 1932 | //\r |
d1050b9d MK |
1933 | if ((Dhcp6Event != Dhcp6SelectAdvertise) && (Callback != NULL)) {\r |
1934 | Received = (BOOLEAN)(Dhcp6Event == Dhcp6RcvdAdvertise || Dhcp6Event == Dhcp6RcvdReply);\r | |
1935 | Status = Callback->Callback (\r | |
1936 | Callback,\r | |
1937 | Private->Function,\r | |
1938 | Received,\r | |
1939 | Packet->Length,\r | |
1940 | (EFI_PXE_BASE_CODE_PACKET *)&Packet->Dhcp6\r | |
1941 | );\r | |
a3bcde70 HT |
1942 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r |
1943 | return EFI_ABORTED;\r | |
1944 | }\r | |
1945 | }\r | |
1946 | \r | |
1947 | Status = EFI_SUCCESS;\r | |
1948 | \r | |
1949 | switch (Dhcp6Event) {\r | |
d1050b9d MK |
1950 | case Dhcp6SendSolicit:\r |
1951 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r | |
1952 | //\r | |
1953 | // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r | |
1954 | //\r | |
1955 | Status = EFI_ABORTED;\r | |
1956 | break;\r | |
1957 | }\r | |
a3bcde70 | 1958 | \r |
632dcfd6 | 1959 | //\r |
d1050b9d | 1960 | // Record the first Solicate msg time\r |
632dcfd6 | 1961 | //\r |
d1050b9d MK |
1962 | if (Private->SolicitTimes == 0) {\r |
1963 | CalcElapsedTime (Private);\r | |
1964 | Private->SolicitTimes++;\r | |
1965 | }\r | |
a3bcde70 | 1966 | \r |
632dcfd6 | 1967 | //\r |
d1050b9d | 1968 | // Cache the dhcp discover packet to mode data directly.\r |
632dcfd6 | 1969 | //\r |
d1050b9d | 1970 | CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp6, Packet->Length);\r |
632dcfd6 | 1971 | break;\r |
d1050b9d MK |
1972 | \r |
1973 | case Dhcp6RcvdAdvertise:\r | |
1974 | Status = EFI_NOT_READY;\r | |
1975 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r | |
1976 | //\r | |
1977 | // Ignore the incoming packets which exceed the maximum length.\r | |
1978 | //\r | |
1979 | break;\r | |
1980 | }\r | |
1981 | \r | |
1982 | if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {\r | |
1983 | //\r | |
1984 | // Cache the dhcp offers to OfferBuffer[] for select later, and record\r | |
1985 | // the OfferIndex and OfferCount.\r | |
1986 | //\r | |
1987 | PxeBcCacheDhcp6Offer (Private, Packet);\r | |
1988 | }\r | |
1989 | \r | |
1990 | break;\r | |
1991 | \r | |
1992 | case Dhcp6SendRequest:\r | |
1993 | if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {\r | |
1994 | //\r | |
1995 | // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r | |
1996 | //\r | |
1997 | Status = EFI_ABORTED;\r | |
1998 | break;\r | |
1999 | }\r | |
2000 | \r | |
a3bcde70 | 2001 | //\r |
d1050b9d | 2002 | // Store the request packet as seed packet for discover.\r |
a3bcde70 | 2003 | //\r |
d1050b9d MK |
2004 | if (Private->Dhcp6Request != NULL) {\r |
2005 | FreePool (Private->Dhcp6Request);\r | |
2006 | }\r | |
2007 | \r | |
2008 | Private->Dhcp6Request = AllocateZeroPool (Packet->Size);\r | |
2009 | if (Private->Dhcp6Request != NULL) {\r | |
2010 | CopyMem (Private->Dhcp6Request, Packet, Packet->Size);\r | |
2011 | }\r | |
2012 | \r | |
2013 | break;\r | |
a3bcde70 | 2014 | \r |
d1050b9d | 2015 | case Dhcp6SelectAdvertise:\r |
632dcfd6 | 2016 | //\r |
d1050b9d MK |
2017 | // Select offer by the default policy or by order, and record the SelectIndex\r |
2018 | // and SelectProxyType.\r | |
632dcfd6 | 2019 | //\r |
d1050b9d | 2020 | PxeBcSelectDhcp6Offer (Private);\r |
f75a7f56 | 2021 | \r |
d1050b9d MK |
2022 | if (Private->SelectIndex == 0) {\r |
2023 | Status = EFI_ABORTED;\r | |
2024 | } else {\r | |
2025 | ASSERT (NewPacket != NULL);\r | |
2026 | SelectAd = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp6.Packet.Offer;\r | |
2027 | *NewPacket = AllocateZeroPool (SelectAd->Size);\r | |
2028 | ASSERT (*NewPacket != NULL);\r | |
2029 | if (*NewPacket == NULL) {\r | |
2030 | return EFI_ABORTED;\r | |
2031 | }\r | |
a3bcde70 | 2032 | \r |
d1050b9d MK |
2033 | CopyMem (*NewPacket, SelectAd, SelectAd->Size);\r |
2034 | }\r | |
a3bcde70 | 2035 | \r |
d1050b9d MK |
2036 | break;\r |
2037 | \r | |
2038 | case Dhcp6RcvdReply:\r | |
2039 | //\r | |
2040 | // Cache the dhcp ack to Private->Dhcp6Ack, but it's not the final ack in mode data\r | |
2041 | // without verification.\r | |
2042 | //\r | |
2043 | ASSERT (Private->SelectIndex != 0);\r | |
2044 | Status = PxeBcCopyDhcp6Ack (Private, Packet, FALSE);\r | |
2045 | if (EFI_ERROR (Status)) {\r | |
2046 | Status = EFI_ABORTED;\r | |
9f4f29cb | 2047 | }\r |
a3bcde70 | 2048 | \r |
d1050b9d | 2049 | break;\r |
a3bcde70 | 2050 | \r |
d1050b9d MK |
2051 | default:\r |
2052 | ASSERT (0);\r | |
a3bcde70 HT |
2053 | }\r |
2054 | \r | |
2055 | return Status;\r | |
2056 | }\r | |
2057 | \r | |
a3bcde70 HT |
2058 | /**\r |
2059 | Build and send out the request packet for the bootfile, and parse the reply.\r | |
2060 | \r | |
2061 | @param[in] Private The pointer to PxeBc private data.\r | |
2062 | @param[in] Type PxeBc option boot item type.\r | |
2063 | @param[in] Layer The pointer to option boot item layer.\r | |
2064 | @param[in] UseBis Use BIS or not.\r | |
2065 | @param[in] DestIp The pointer to the server address.\r | |
2066 | \r | |
2067 | @retval EFI_SUCCESS Successfully discovered the boot file.\r | |
2068 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
2069 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.\r | |
2070 | @retval Others Failed to discover the boot file.\r | |
2071 | \r | |
2072 | **/\r | |
2073 | EFI_STATUS\r | |
2074 | PxeBcDhcp6Discover (\r | |
d1050b9d MK |
2075 | IN PXEBC_PRIVATE_DATA *Private,\r |
2076 | IN UINT16 Type,\r | |
2077 | IN UINT16 *Layer,\r | |
2078 | IN BOOLEAN UseBis,\r | |
2079 | IN EFI_IP_ADDRESS *DestIp\r | |
a3bcde70 HT |
2080 | )\r |
2081 | {\r | |
d1050b9d MK |
2082 | EFI_PXE_BASE_CODE_UDP_PORT SrcPort;\r |
2083 | EFI_PXE_BASE_CODE_UDP_PORT DestPort;\r | |
2084 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
2085 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r | |
2086 | EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;\r | |
2087 | UINTN DiscoverLen;\r | |
2088 | EFI_DHCP6_PACKET *Request;\r | |
2089 | UINTN RequestLen;\r | |
2090 | EFI_DHCP6_PACKET *Reply;\r | |
2091 | UINT8 *RequestOpt;\r | |
2092 | UINT8 *DiscoverOpt;\r | |
2093 | UINTN ReadSize;\r | |
2094 | UINT16 OpCode;\r | |
2095 | UINT16 OpLen;\r | |
2096 | UINT32 Xid;\r | |
2097 | EFI_STATUS Status;\r | |
2098 | \r | |
2099 | PxeBc = &Private->PxeBc;\r | |
2100 | Mode = PxeBc->Mode;\r | |
2101 | Request = Private->Dhcp6Request;\r | |
2102 | SrcPort = PXEBC_BS_DISCOVER_PORT;\r | |
2103 | DestPort = PXEBC_BS_DISCOVER_PORT;\r | |
2104 | \r | |
2105 | if (!UseBis && (Layer != NULL)) {\r | |
a3bcde70 HT |
2106 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r |
2107 | }\r | |
2108 | \r | |
2109 | if (Request == NULL) {\r | |
2110 | return EFI_DEVICE_ERROR;\r | |
2111 | }\r | |
2112 | \r | |
2113 | Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));\r | |
2114 | if (Discover == NULL) {\r | |
2115 | return EFI_OUT_OF_RESOURCES;\r | |
2116 | }\r | |
2117 | \r | |
2118 | //\r | |
2119 | // Build the discover packet by the cached request packet before.\r | |
2120 | //\r | |
2121 | Xid = NET_RANDOM (NetRandomInitSeed ());\r | |
2122 | Discover->TransactionId = HTONL (Xid);\r | |
2123 | Discover->MessageType = Request->Dhcp6.Header.MessageType;\r | |
2124 | RequestOpt = Request->Dhcp6.Option;\r | |
2125 | DiscoverOpt = Discover->DhcpOptions;\r | |
2126 | DiscoverLen = sizeof (EFI_DHCP6_HEADER);\r | |
2127 | RequestLen = DiscoverLen;\r | |
2128 | \r | |
2129 | while (RequestLen < Request->Length) {\r | |
d1050b9d MK |
2130 | OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpCode);\r |
2131 | OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpLen);\r | |
2132 | if ((OpCode != EFI_DHCP6_IA_TYPE_NA) &&\r | |
2133 | (OpCode != EFI_DHCP6_IA_TYPE_TA))\r | |
2134 | {\r | |
a3bcde70 HT |
2135 | //\r |
2136 | // Copy all the options except IA option.\r | |
2137 | //\r | |
2138 | CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);\r | |
2139 | DiscoverOpt += (OpLen + 4);\r | |
2140 | DiscoverLen += (OpLen + 4);\r | |
2141 | }\r | |
d1050b9d | 2142 | \r |
a3bcde70 HT |
2143 | RequestOpt += (OpLen + 4);\r |
2144 | RequestLen += (OpLen + 4);\r | |
2145 | }\r | |
2146 | \r | |
2147 | Status = PxeBc->UdpWrite (\r | |
2148 | PxeBc,\r | |
903d1fa9 | 2149 | 0,\r |
a3bcde70 HT |
2150 | &Private->ServerIp,\r |
2151 | &DestPort,\r | |
2152 | NULL,\r | |
2153 | &Private->StationIp,\r | |
2154 | &SrcPort,\r | |
2155 | NULL,\r | |
2156 | NULL,\r | |
2157 | &DiscoverLen,\r | |
d1050b9d | 2158 | (VOID *)Discover\r |
a3bcde70 HT |
2159 | );\r |
2160 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 2161 | goto ON_ERROR;\r |
a3bcde70 HT |
2162 | }\r |
2163 | \r | |
2164 | //\r | |
2165 | // Cache the right PXE reply packet here, set valid flag later.\r | |
2166 | // Especially for PXE discover packet, store it into mode data here.\r | |
2167 | //\r | |
2168 | if (Private->IsDoDiscover) {\r | |
2169 | CopyMem (&Mode->PxeDiscover.Dhcpv6, Discover, DiscoverLen);\r | |
2170 | Reply = &Private->PxeReply.Dhcp6.Packet.Ack;\r | |
2171 | } else {\r | |
2172 | Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;\r | |
2173 | }\r | |
d1050b9d MK |
2174 | \r |
2175 | ReadSize = (UINTN)Reply->Size;\r | |
a3bcde70 | 2176 | \r |
357af285 | 2177 | //\r |
2178 | // Start Udp6Read instance\r | |
2179 | //\r | |
2180 | Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r | |
2181 | if (EFI_ERROR (Status)) {\r | |
2fad330f | 2182 | goto ON_ERROR;\r |
357af285 | 2183 | }\r |
f75a7f56 | 2184 | \r |
a3bcde70 HT |
2185 | Status = PxeBc->UdpRead (\r |
2186 | PxeBc,\r | |
903d1fa9 FS |
2187 | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,\r |
2188 | NULL,\r | |
a3bcde70 HT |
2189 | &SrcPort,\r |
2190 | &Private->ServerIp,\r | |
2191 | &DestPort,\r | |
2192 | NULL,\r | |
2193 | NULL,\r | |
2194 | &ReadSize,\r | |
d1050b9d | 2195 | (VOID *)&Reply->Dhcp6\r |
a3bcde70 | 2196 | );\r |
357af285 | 2197 | //\r |
2198 | // Stop Udp6Read instance\r | |
2199 | //\r | |
2200 | Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r | |
a3bcde70 | 2201 | if (EFI_ERROR (Status)) {\r |
2fad330f | 2202 | goto ON_ERROR;\r |
a3bcde70 HT |
2203 | }\r |
2204 | \r | |
2205 | return EFI_SUCCESS;\r | |
2fad330f FS |
2206 | \r |
2207 | ON_ERROR:\r | |
2208 | if (Discover != NULL) {\r | |
2209 | FreePool (Discover);\r | |
2210 | }\r | |
2211 | \r | |
2212 | return Status;\r | |
a3bcde70 HT |
2213 | }\r |
2214 | \r | |
a3bcde70 HT |
2215 | /**\r |
2216 | Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.\r | |
2217 | \r | |
2218 | @param[in] Private The pointer to PxeBc private data.\r | |
2219 | @param[in] Dhcp6 The pointer to the EFI_DHCP6_PROTOCOL\r | |
2220 | \r | |
2221 | @retval EFI_SUCCESS The S.A.R.R. process successfully finished.\r | |
2222 | @retval Others Failed to finish the S.A.R.R. process.\r | |
2223 | \r | |
2224 | **/\r | |
2225 | EFI_STATUS\r | |
2226 | PxeBcDhcp6Sarr (\r | |
d1050b9d MK |
2227 | IN PXEBC_PRIVATE_DATA *Private,\r |
2228 | IN EFI_DHCP6_PROTOCOL *Dhcp6\r | |
a3bcde70 HT |
2229 | )\r |
2230 | {\r | |
d1050b9d MK |
2231 | EFI_PXE_BASE_CODE_MODE *PxeMode;\r |
2232 | EFI_DHCP6_CONFIG_DATA Config;\r | |
2233 | EFI_DHCP6_MODE_DATA Mode;\r | |
2234 | EFI_DHCP6_RETRANSMISSION *Retransmit;\r | |
2235 | EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_OPTION_MAX_NUM];\r | |
2236 | UINT8 Buffer[PXEBC_DHCP6_OPTION_MAX_SIZE];\r | |
2237 | UINT32 OptCount;\r | |
2238 | EFI_STATUS Status;\r | |
2239 | EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;\r | |
2240 | EFI_STATUS TimerStatus;\r | |
2241 | EFI_EVENT Timer;\r | |
2242 | UINT64 GetMappingTimeOut;\r | |
2243 | UINTN DataSize;\r | |
2244 | EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;\r | |
2245 | \r | |
2246 | Status = EFI_SUCCESS;\r | |
2247 | PxeMode = Private->PxeBc.Mode;\r | |
2248 | Ip6Cfg = Private->Ip6Cfg;\r | |
2249 | Timer = NULL;\r | |
a3bcde70 HT |
2250 | \r |
2251 | //\r | |
2252 | // Build option list for the request packet.\r | |
2253 | //\r | |
d1050b9d MK |
2254 | OptCount = PxeBcBuildDhcp6Options (Private, OptList, Buffer);\r |
2255 | ASSERT (OptCount > 0);\r | |
a3bcde70 HT |
2256 | \r |
2257 | Retransmit = AllocateZeroPool (sizeof (EFI_DHCP6_RETRANSMISSION));\r | |
2258 | if (Retransmit == NULL) {\r | |
2259 | return EFI_OUT_OF_RESOURCES;\r | |
2260 | }\r | |
2261 | \r | |
2262 | ZeroMem (&Mode, sizeof (EFI_DHCP6_MODE_DATA));\r | |
2263 | ZeroMem (&Config, sizeof (EFI_DHCP6_CONFIG_DATA));\r | |
2264 | \r | |
2265 | Config.OptionCount = OptCount;\r | |
2266 | Config.OptionList = OptList;\r | |
2267 | Config.Dhcp6Callback = PxeBcDhcp6CallBack;\r | |
2268 | Config.CallbackContext = Private;\r | |
2269 | Config.IaInfoEvent = NULL;\r | |
2270 | Config.RapidCommit = FALSE;\r | |
2271 | Config.ReconfigureAccept = FALSE;\r | |
75dce340 | 2272 | Config.IaDescriptor.IaId = Private->IaId;\r |
a3bcde70 HT |
2273 | Config.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;\r |
2274 | Config.SolicitRetransmission = Retransmit;\r | |
2275 | Retransmit->Irt = 4;\r | |
2276 | Retransmit->Mrc = 4;\r | |
2277 | Retransmit->Mrt = 32;\r | |
2278 | Retransmit->Mrd = 60;\r | |
2279 | \r | |
2280 | //\r | |
2281 | // Configure the DHCPv6 instance for PXE boot.\r | |
2282 | //\r | |
2283 | Status = Dhcp6->Configure (Dhcp6, &Config);\r | |
ed2bfecb | 2284 | FreePool (Retransmit);\r |
a3bcde70 | 2285 | if (EFI_ERROR (Status)) {\r |
a3bcde70 HT |
2286 | return Status;\r |
2287 | }\r | |
2288 | \r | |
2289 | //\r | |
2290 | // Initialize the record fields for DHCPv6 offer in private data.\r | |
2291 | //\r | |
2292 | Private->IsProxyRecved = FALSE;\r | |
2293 | Private->OfferNum = 0;\r | |
2294 | Private->SelectIndex = 0;\r | |
2295 | ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));\r | |
2296 | ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));\r | |
2297 | \r | |
a3bcde70 HT |
2298 | //\r |
2299 | // Start DHCPv6 S.A.R.R. process to acquire IPv6 address.\r | |
2300 | //\r | |
2301 | Status = Dhcp6->Start (Dhcp6);\r | |
ed2bfecb | 2302 | if (Status == EFI_NO_MAPPING) {\r |
2303 | //\r | |
2304 | // IP6 Linklocal address is not available for use, so stop current Dhcp process\r | |
2305 | // and wait for duplicate address detection to finish.\r | |
2306 | //\r | |
2307 | Dhcp6->Stop (Dhcp6);\r | |
2308 | \r | |
2309 | //\r | |
2310 | // Get Duplicate Address Detection Transmits count.\r | |
2311 | //\r | |
2312 | DataSize = sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS);\r | |
d1050b9d MK |
2313 | Status = Ip6Cfg->GetData (\r |
2314 | Ip6Cfg,\r | |
2315 | Ip6ConfigDataTypeDupAddrDetectTransmits,\r | |
2316 | &DataSize,\r | |
2317 | &DadXmits\r | |
2318 | );\r | |
ed2bfecb | 2319 | if (EFI_ERROR (Status)) {\r |
2320 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2321 | return Status;\r | |
2322 | }\r | |
2323 | \r | |
2324 | Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);\r | |
2325 | if (EFI_ERROR (Status)) {\r | |
2326 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2327 | return Status;\r | |
2328 | }\r | |
2329 | \r | |
2330 | GetMappingTimeOut = TICKS_PER_SECOND * DadXmits.DupAddrDetectTransmits + PXEBC_DAD_ADDITIONAL_DELAY;\r | |
d1050b9d | 2331 | Status = gBS->SetTimer (Timer, TimerRelative, GetMappingTimeOut);\r |
ed2bfecb | 2332 | if (EFI_ERROR (Status)) {\r |
2333 | gBS->CloseEvent (Timer);\r | |
2334 | Dhcp6->Configure (Dhcp6, NULL);\r | |
2335 | return Status;\r | |
2336 | }\r | |
2337 | \r | |
2338 | do {\r | |
ed2bfecb | 2339 | TimerStatus = gBS->CheckEvent (Timer);\r |
2340 | if (!EFI_ERROR (TimerStatus)) {\r | |
2341 | Status = Dhcp6->Start (Dhcp6);\r | |
2342 | }\r | |
2343 | } while (TimerStatus == EFI_NOT_READY);\r | |
f75a7f56 | 2344 | \r |
ed2bfecb | 2345 | gBS->CloseEvent (Timer);\r |
2346 | }\r | |
d1050b9d | 2347 | \r |
a3bcde70 HT |
2348 | if (EFI_ERROR (Status)) {\r |
2349 | if (Status == EFI_ICMP_ERROR) {\r | |
2350 | PxeMode->IcmpErrorReceived = TRUE;\r | |
2351 | }\r | |
d1050b9d | 2352 | \r |
a3bcde70 HT |
2353 | Dhcp6->Configure (Dhcp6, NULL);\r |
2354 | return Status;\r | |
2355 | }\r | |
2356 | \r | |
2357 | //\r | |
2358 | // Get the acquired IPv6 address and store them.\r | |
2359 | //\r | |
2360 | Status = Dhcp6->GetModeData (Dhcp6, &Mode, NULL);\r | |
2361 | if (EFI_ERROR (Status)) {\r | |
2362 | Dhcp6->Stop (Dhcp6);\r | |
2363 | return Status;\r | |
2364 | }\r | |
2365 | \r | |
bec55c33 | 2366 | ASSERT ((Mode.Ia != NULL) && (Mode.Ia->State == Dhcp6Bound));\r |
ae97201c FS |
2367 | //\r |
2368 | // DHCP6 doesn't have an option to specify the router address on the subnet, the only way to get the\r | |
2369 | // router address in IP6 is the router discovery mechanism (the RS and RA, which only be handled when\r | |
2370 | // the IP policy is Automatic). So we just hold the station IP address here and leave the IP policy as\r | |
f75a7f56 | 2371 | // Automatic, until we get the server IP address. This could let IP6 driver finish the router discovery\r |
ae97201c FS |
2372 | // to find a valid router address.\r |
2373 | //\r | |
2374 | CopyMem (&Private->TmpStationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));\r | |
ce22514e ZL |
2375 | if (Mode.ClientId != NULL) {\r |
2376 | FreePool (Mode.ClientId);\r | |
2377 | }\r | |
d1050b9d | 2378 | \r |
ce22514e ZL |
2379 | if (Mode.Ia != NULL) {\r |
2380 | FreePool (Mode.Ia);\r | |
2381 | }\r | |
d1050b9d | 2382 | \r |
a3bcde70 HT |
2383 | //\r |
2384 | // Check the selected offer whether BINL retry is needed.\r | |
2385 | //\r | |
2386 | Status = PxeBcHandleDhcp6Offer (Private);\r | |
2387 | if (EFI_ERROR (Status)) {\r | |
a3bcde70 HT |
2388 | Dhcp6->Stop (Dhcp6);\r |
2389 | return Status;\r | |
2390 | }\r | |
f75a7f56 | 2391 | \r |
a3bcde70 HT |
2392 | return EFI_SUCCESS;\r |
2393 | }\r |