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1 | /** @file\r | |
2 | Support for PxeBc dhcp functions.\r | |
3 | \r | |
4 | Copyright (c) 2007 - 2009, Intel Corporation.<BR> \r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | \r | |
16 | #include "PxeBcImpl.h"\r | |
17 | \r | |
18 | //\r | |
19 | // This is a map from the interested DHCP4 option tags' index to the tag value.\r | |
20 | //\r | |
21 | UINT8 mInterestedDhcp4Tags[PXEBC_DHCP4_TAG_INDEX_MAX] = {\r | |
22 | PXEBC_DHCP4_TAG_BOOTFILE_LEN,\r | |
23 | PXEBC_DHCP4_TAG_VENDOR,\r | |
24 | PXEBC_DHCP4_TAG_OVERLOAD,\r | |
25 | PXEBC_DHCP4_TAG_MSG_TYPE,\r | |
26 | PXEBC_DHCP4_TAG_SERVER_ID,\r | |
27 | PXEBC_DHCP4_TAG_CLASS_ID,\r | |
28 | PXEBC_DHCP4_TAG_BOOTFILE\r | |
29 | };\r | |
30 | \r | |
31 | \r | |
32 | /**\r | |
33 | This function initialize the DHCP4 message instance.\r | |
34 | \r | |
35 | This function will pad each item of dhcp4 message packet.\r | |
36 | \r | |
37 | @param Seed Pointer to the message instance of the DHCP4 packet.\r | |
38 | @param Udp4 Pointer to the EFI_UDP4_PROTOCOL instance.\r | |
39 | \r | |
40 | @return none.\r | |
41 | \r | |
42 | **/\r | |
43 | VOID\r | |
44 | PxeBcInitSeedPacket (\r | |
45 | IN EFI_DHCP4_PACKET *Seed,\r | |
46 | IN EFI_UDP4_PROTOCOL *Udp4\r | |
47 | )\r | |
48 | {\r | |
49 | EFI_SIMPLE_NETWORK_MODE Mode;\r | |
50 | EFI_DHCP4_HEADER *Header;\r | |
51 | \r | |
52 | Udp4->GetModeData (Udp4, NULL, NULL, NULL, &Mode);\r | |
53 | \r | |
54 | Seed->Size = sizeof (EFI_DHCP4_PACKET);\r | |
55 | Seed->Length = sizeof (Seed->Dhcp4);\r | |
56 | \r | |
57 | Header = &Seed->Dhcp4.Header;\r | |
58 | \r | |
59 | ZeroMem (Header, sizeof (EFI_DHCP4_HEADER));\r | |
60 | Header->OpCode = PXEBC_DHCP4_OPCODE_REQUEST;\r | |
61 | Header->HwType = Mode.IfType;\r | |
62 | Header->HwAddrLen = (UINT8) Mode.HwAddressSize;\r | |
63 | CopyMem (Header->ClientHwAddr, &Mode.CurrentAddress, Header->HwAddrLen);\r | |
64 | \r | |
65 | Seed->Dhcp4.Magik = PXEBC_DHCP4_MAGIC;\r | |
66 | Seed->Dhcp4.Option[0] = PXEBC_DHCP4_TAG_EOP;\r | |
67 | }\r | |
68 | \r | |
69 | \r | |
70 | /**\r | |
71 | Copy the DCHP4 packet from srouce to destination.\r | |
72 | \r | |
73 | @param Dst Pointer to the EFI_DHCP4_PROTOCOL instance.\r | |
74 | @param Src Pointer to the EFI_DHCP4_PROTOCOL instance.\r | |
75 | \r | |
76 | @return None.\r | |
77 | \r | |
78 | **/\r | |
79 | VOID\r | |
80 | PxeBcCopyEfiDhcp4Packet (\r | |
81 | IN EFI_DHCP4_PACKET *Dst,\r | |
82 | IN EFI_DHCP4_PACKET *Src\r | |
83 | )\r | |
84 | {\r | |
85 | ASSERT (Dst->Size >= Src->Length);\r | |
86 | \r | |
87 | CopyMem (&Dst->Dhcp4, &Src->Dhcp4, Src->Length);\r | |
88 | Dst->Length = Src->Length;\r | |
89 | }\r | |
90 | \r | |
91 | \r | |
92 | /**\r | |
93 | Copy the dhcp4 packet to the PxeBc private data and parse the dhcp4 packet.\r | |
94 | \r | |
95 | @param Private Pointer to PxeBc private data.\r | |
96 | @param OfferIndex Index of cached packets as complements of pxe mode data,\r | |
97 | the index is maximum offer number.\r | |
98 | \r | |
99 | @return None.\r | |
100 | \r | |
101 | **/\r | |
102 | VOID\r | |
103 | PxeBcCopyProxyOffer (\r | |
104 | IN PXEBC_PRIVATE_DATA *Private,\r | |
105 | IN UINT32 OfferIndex\r | |
106 | )\r | |
107 | {\r | |
108 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
109 | EFI_DHCP4_PACKET *Offer;\r | |
110 | \r | |
111 | ASSERT (OfferIndex < Private->NumOffers);\r | |
112 | \r | |
113 | Mode = Private->PxeBc.Mode;\r | |
114 | Offer = &Private->Dhcp4Offers[OfferIndex].Packet.Offer;\r | |
115 | \r | |
116 | PxeBcCopyEfiDhcp4Packet (&Private->ProxyOffer.Packet.Offer, Offer);\r | |
117 | CopyMem (&Mode->ProxyOffer, &Offer->Dhcp4, Offer->Length);\r | |
118 | Mode->ProxyOfferReceived = TRUE;\r | |
119 | \r | |
120 | PxeBcParseCachedDhcpPacket (&Private->ProxyOffer);\r | |
121 | }\r | |
122 | \r | |
123 | \r | |
124 | /**\r | |
125 | Parse the cached dhcp packet.\r | |
126 | \r | |
127 | @param CachedPacket Pointer to cached dhcp packet.\r | |
128 | \r | |
129 | @retval TRUE Succeed to parse and validation.\r | |
130 | @retval FALSE Fail to parse or validation.\r | |
131 | \r | |
132 | **/\r | |
133 | BOOLEAN\r | |
134 | PxeBcParseCachedDhcpPacket (\r | |
135 | IN PXEBC_CACHED_DHCP4_PACKET *CachedPacket\r | |
136 | )\r | |
137 | {\r | |
138 | EFI_DHCP4_PACKET *Offer;\r | |
139 | EFI_DHCP4_PACKET_OPTION **Options;\r | |
140 | EFI_DHCP4_PACKET_OPTION *Option;\r | |
141 | UINT8 OfferType;\r | |
142 | UINTN Index;\r | |
143 | \r | |
144 | CachedPacket->IsPxeOffer = FALSE;\r | |
145 | ZeroMem (CachedPacket->Dhcp4Option, sizeof (CachedPacket->Dhcp4Option));\r | |
146 | ZeroMem (&CachedPacket->PxeVendorOption, sizeof (CachedPacket->PxeVendorOption));\r | |
147 | \r | |
148 | Offer = &CachedPacket->Packet.Offer;\r | |
149 | Options = CachedPacket->Dhcp4Option;\r | |
150 | \r | |
151 | //\r | |
152 | // Parse interested dhcp options and store their pointers in CachedPacket->Dhcp4Option.\r | |
153 | //\r | |
154 | for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {\r | |
155 | Options[Index] = PxeBcParseExtendOptions (\r | |
156 | Offer->Dhcp4.Option,\r | |
157 | GET_OPTION_BUFFER_LEN (Offer),\r | |
158 | mInterestedDhcp4Tags[Index]\r | |
159 | );\r | |
160 | }\r | |
161 | \r | |
162 | //\r | |
163 | // Check whether is an offer with PXEClient or not.\r | |
164 | //\r | |
165 | Option = Options[PXEBC_DHCP4_TAG_INDEX_CLASS_ID];\r | |
166 | if ((Option != NULL) && (Option->Length >= 9) &&\r | |
167 | (CompareMem (Option->Data, DEFAULT_CLASS_ID_DATA, 9) == 0)) {\r | |
168 | \r | |
169 | CachedPacket->IsPxeOffer = TRUE;\r | |
170 | }\r | |
171 | \r | |
172 | //\r | |
173 | // Parse pxe vendor options and store their content/pointers in CachedPacket->PxeVendorOption.\r | |
174 | //\r | |
175 | Option = Options[PXEBC_DHCP4_TAG_INDEX_VENDOR];\r | |
176 | if (CachedPacket->IsPxeOffer && (Option != NULL)) {\r | |
177 | \r | |
178 | if (!PxeBcParseVendorOptions (Option, &CachedPacket->PxeVendorOption)) {\r | |
179 | return FALSE;\r | |
180 | }\r | |
181 | }\r | |
182 | \r | |
183 | //\r | |
184 | // Check whether bootfilename/serverhostname overloaded (See details in dhcp spec).\r | |
185 | // If overloaded, parse this buffer as nested dhcp options, or just parse bootfilename/\r | |
186 | // serverhostname option.\r | |
187 | //\r | |
188 | Option = Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD];\r | |
189 | if ((Option != NULL) && (Option->Data[0] & PXEBC_DHCP4_OVERLOAD_FILE)) {\r | |
190 | \r | |
191 | Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] = PxeBcParseExtendOptions (\r | |
192 | (UINT8 *) Offer->Dhcp4.Header.BootFileName,\r | |
193 | sizeof (Offer->Dhcp4.Header.BootFileName),\r | |
194 | PXEBC_DHCP4_TAG_BOOTFILE\r | |
195 | );\r | |
196 | \r | |
197 | } else if ((Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL) &&\r | |
198 | (Offer->Dhcp4.Header.BootFileName[0] != 0)) {\r | |
199 | //\r | |
200 | // If the bootfile is not present and bootfilename is present in dhcp packet, just parse it.\r | |
201 | // And do not count dhcp option header, or else will destory the serverhostname.\r | |
202 | //\r | |
203 | Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] = (EFI_DHCP4_PACKET_OPTION *) (&Offer->Dhcp4.Header.BootFileName[0] -\r | |
204 | OFFSET_OF (EFI_DHCP4_PACKET_OPTION, Data[0]));\r | |
205 | \r | |
206 | }\r | |
207 | \r | |
208 | //\r | |
209 | // Determine offer type of the dhcp packet.\r | |
210 | //\r | |
211 | Option = Options[PXEBC_DHCP4_TAG_INDEX_MSG_TYPE];\r | |
212 | if ((Option == NULL) || (Option->Data[0] == 0)) {\r | |
213 | //\r | |
214 | // It's a bootp offer\r | |
215 | //\r | |
216 | Option = CachedPacket->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE];\r | |
217 | if (Option == NULL) {\r | |
218 | //\r | |
219 | // bootp offer without bootfilename, discard it.\r | |
220 | //\r | |
221 | return FALSE;\r | |
222 | }\r | |
223 | \r | |
224 | OfferType = DHCP4_PACKET_TYPE_BOOTP;\r | |
225 | \r | |
226 | } else {\r | |
227 | \r | |
228 | if (IS_VALID_DISCOVER_VENDOR_OPTION (CachedPacket->PxeVendorOption.BitMap)) {\r | |
229 | //\r | |
230 | // It's a pxe10 offer with PXEClient and discover vendor option.\r | |
231 | //\r | |
232 | OfferType = DHCP4_PACKET_TYPE_PXE10;\r | |
233 | } else if (IS_VALID_MTFTP_VENDOR_OPTION (CachedPacket->PxeVendorOption.BitMap)) {\r | |
234 | //\r | |
235 | // It's a wfm11a offer with PXEClient and mtftp vendor option, and\r | |
236 | // return false since mtftp not supported currently.\r | |
237 | //\r | |
238 | return FALSE;\r | |
239 | } else {\r | |
240 | //\r | |
241 | // If the binl offer with only PXEClient.\r | |
242 | //\r | |
243 | OfferType = (UINT8) ((CachedPacket->IsPxeOffer) ? DHCP4_PACKET_TYPE_BINL : DHCP4_PACKET_TYPE_DHCP_ONLY);\r | |
244 | }\r | |
245 | }\r | |
246 | \r | |
247 | CachedPacket->OfferType = OfferType;\r | |
248 | \r | |
249 | return TRUE;\r | |
250 | }\r | |
251 | \r | |
252 | \r | |
253 | /**\r | |
254 | Offer dhcp service with a BINL dhcp offer.\r | |
255 | \r | |
256 | @param Private Pointer to PxeBc private data.\r | |
257 | @param Index Index of cached packets as complements of pxe mode data,\r | |
258 | the index is maximum offer number.\r | |
259 | \r | |
260 | @retval TRUE Offer the service successfully under priority BINL.\r | |
261 | @retval FALSE Boot Service failed, parse cached dhcp packet failed or this \r | |
262 | BINL ack cannot find options set or bootfile name specified.\r | |
263 | \r | |
264 | **/\r | |
265 | BOOLEAN\r | |
266 | PxeBcTryBinl (\r | |
267 | IN PXEBC_PRIVATE_DATA *Private,\r | |
268 | IN UINT32 Index\r | |
269 | )\r | |
270 | {\r | |
271 | EFI_DHCP4_PACKET *Offer;\r | |
272 | EFI_IP_ADDRESS ServerIp;\r | |
273 | EFI_STATUS Status;\r | |
274 | PXEBC_CACHED_DHCP4_PACKET *CachedPacket;\r | |
275 | EFI_DHCP4_PACKET *Reply;\r | |
276 | \r | |
277 | ASSERT (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL);\r | |
278 | \r | |
279 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r | |
280 | \r | |
281 | //\r | |
282 | // use option 54, if zero, use siaddr in header\r | |
283 | //\r | |
284 | ZeroMem (&ServerIp, sizeof(EFI_IP_ADDRESS));\r | |
285 | if (Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID] != NULL) {\r | |
286 | CopyMem (\r | |
287 | &ServerIp.Addr[0],\r | |
288 | Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,\r | |
289 | sizeof (EFI_IPv4_ADDRESS)\r | |
290 | );\r | |
291 | } else {\r | |
292 | CopyMem (\r | |
293 | &ServerIp.Addr[0], \r | |
294 | &Offer->Dhcp4.Header.ServerAddr, \r | |
295 | sizeof (EFI_IPv4_ADDRESS)\r | |
296 | );\r | |
297 | }\r | |
298 | if (ServerIp.Addr[0] == 0) {\r | |
299 | return FALSE;\r | |
300 | }\r | |
301 | \r | |
302 | CachedPacket = &Private->ProxyOffer;\r | |
303 | Reply = &CachedPacket->Packet.Offer;\r | |
304 | \r | |
305 | Status = PxeBcDiscvBootService (\r | |
306 | Private,\r | |
307 | 0,\r | |
308 | NULL,\r | |
309 | FALSE,\r | |
310 | &ServerIp,\r | |
311 | 0,\r | |
312 | NULL,\r | |
313 | FALSE,\r | |
314 | Reply\r | |
315 | );\r | |
316 | if (EFI_ERROR (Status)) {\r | |
317 | return FALSE;\r | |
318 | }\r | |
319 | \r | |
320 | if (!PxeBcParseCachedDhcpPacket (CachedPacket)) {\r | |
321 | return FALSE;\r | |
322 | }\r | |
323 | \r | |
324 | if ((CachedPacket->OfferType != DHCP4_PACKET_TYPE_PXE10) &&\r | |
325 | (CachedPacket->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL)) {\r | |
326 | //\r | |
327 | // This BINL ack doesn't have discovery options set or bootfile name\r | |
328 | // specified.\r | |
329 | //\r | |
330 | return FALSE;\r | |
331 | }\r | |
332 | \r | |
333 | Private->PxeBc.Mode->ProxyOfferReceived = TRUE;\r | |
334 | CopyMem (&Private->PxeBc.Mode->ProxyOffer, &Reply->Dhcp4, Reply->Length);\r | |
335 | \r | |
336 | return TRUE;\r | |
337 | }\r | |
338 | \r | |
339 | \r | |
340 | /**\r | |
341 | Offer dhcp service for each proxy with a BINL dhcp offer.\r | |
342 | \r | |
343 | @param Private Pointer to PxeBc private data\r | |
344 | @param OfferIndex Pointer to the index of cached packets as complements of \r | |
345 | pxe mode data, the index is maximum offer number.\r | |
346 | \r | |
347 | @return If there is no service needed offer return FALSE, otherwise TRUE.\r | |
348 | \r | |
349 | **/\r | |
350 | BOOLEAN\r | |
351 | PxeBcTryBinlProxy (\r | |
352 | IN PXEBC_PRIVATE_DATA *Private,\r | |
353 | OUT UINT32 *OfferIndex\r | |
354 | )\r | |
355 | {\r | |
356 | UINT32 Index;\r | |
357 | \r | |
358 | for (Index = 0; Index < Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]; Index++) {\r | |
359 | \r | |
360 | *OfferIndex = Private->BinlIndex[Index];\r | |
361 | //\r | |
362 | // Try this BINL proxy offer\r | |
363 | //\r | |
364 | if (PxeBcTryBinl (Private, *OfferIndex)) {\r | |
365 | return TRUE;\r | |
366 | }\r | |
367 | }\r | |
368 | \r | |
369 | return FALSE;\r | |
370 | }\r | |
371 | \r | |
372 | \r | |
373 | /**\r | |
374 | This function is to check the selected proxy offer (include BINL dhcp offer and\r | |
375 | DHCP_ONLY offer ) and set the flag and copy the DHCP packets to the Pxe base code\r | |
376 | mode structure.\r | |
377 | \r | |
378 | @param Private Pointer to PxeBc private data.\r | |
379 | \r | |
380 | @retval EFI_SUCCESS Operational successful.\r | |
381 | @retval EFI_NO_RESPONSE Offer dhcp service failed.\r | |
382 | \r | |
383 | **/\r | |
384 | EFI_STATUS\r | |
385 | PxeBcCheckSelectedOffer (\r | |
386 | IN PXEBC_PRIVATE_DATA *Private\r | |
387 | )\r | |
388 | {\r | |
389 | PXEBC_CACHED_DHCP4_PACKET *SelectedOffer;\r | |
390 | EFI_DHCP4_PACKET_OPTION **Options;\r | |
391 | UINT32 Index;\r | |
392 | EFI_DHCP4_PACKET *Offer;\r | |
393 | UINT32 ProxyOfferIndex;\r | |
394 | EFI_STATUS Status;\r | |
395 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
396 | EFI_DHCP4_PACKET *Ack;\r | |
397 | \r | |
398 | ASSERT (Private->SelectedOffer != 0);\r | |
399 | \r | |
400 | Status = EFI_SUCCESS;\r | |
401 | SelectedOffer = &Private->Dhcp4Offers[Private->SelectedOffer - 1];\r | |
402 | Options = SelectedOffer->Dhcp4Option;\r | |
403 | \r | |
404 | if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BINL) {\r | |
405 | //\r | |
406 | // The addresses are acquired from a BINL dhcp offer, try BINL to get\r | |
407 | // the bootfile name\r | |
408 | //\r | |
409 | if (!PxeBcTryBinl (Private, Private->SelectedOffer - 1)) {\r | |
410 | Status = EFI_NO_RESPONSE;\r | |
411 | }\r | |
412 | } else if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) {\r | |
413 | //\r | |
414 | // The selected offer to finish the D.O.R.A. is a DHCP only offer, we need \r | |
415 | // try proxy offers if there are some, othewise the bootfile name must be \r | |
416 | // set in this DHCP only offer.\r | |
417 | //\r | |
418 | if (Private->GotProxyOffer) {\r | |
419 | //\r | |
420 | // Get rid of the compiler warning.\r | |
421 | //\r | |
422 | ProxyOfferIndex = 0;\r | |
423 | if (Private->SortOffers) {\r | |
424 | //\r | |
425 | // The offers are sorted before selecting, the proxy offer type must be\r | |
426 | // already determined.\r | |
427 | //\r | |
428 | ASSERT (Private->ProxyIndex[Private->ProxyOfferType] > 0);\r | |
429 | \r | |
430 | if (Private->ProxyOfferType == DHCP4_PACKET_TYPE_BINL) {\r | |
431 | //\r | |
432 | // We buffer all received BINL proxy offers, try them all one by one\r | |
433 | //\r | |
434 | if (!PxeBcTryBinlProxy (Private, &ProxyOfferIndex)) {\r | |
435 | Status = EFI_NO_RESPONSE;\r | |
436 | }\r | |
437 | } else {\r | |
438 | //\r | |
439 | // For other types, only one proxy offer is buffered.\r | |
440 | //\r | |
441 | ProxyOfferIndex = Private->ProxyIndex[Private->ProxyOfferType] - 1;\r | |
442 | }\r | |
443 | } else {\r | |
444 | //\r | |
445 | // The proxy offer type is not determined, choose proxy offer in the \r | |
446 | // received order.\r | |
447 | //\r | |
448 | Status = EFI_NO_RESPONSE;\r | |
449 | \r | |
450 | for (Index = 0; Index < Private->NumOffers; Index++) {\r | |
451 | \r | |
452 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r | |
453 | if (!IS_PROXY_DHCP_OFFER (Offer)) {\r | |
454 | //\r | |
455 | // Skip non proxy dhcp offers.\r | |
456 | //\r | |
457 | continue;\r | |
458 | }\r | |
459 | \r | |
460 | if (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL) {\r | |
461 | //\r | |
462 | // Try BINL\r | |
463 | //\r | |
464 | if (!PxeBcTryBinl (Private, Index)) {\r | |
465 | //\r | |
466 | // Failed, skip to the next offer\r | |
467 | //\r | |
468 | continue;\r | |
469 | }\r | |
470 | }\r | |
471 | \r | |
472 | Private->ProxyOfferType = Private->Dhcp4Offers[Index].OfferType;\r | |
473 | ProxyOfferIndex = Index;\r | |
474 | Status = EFI_SUCCESS;\r | |
475 | break;\r | |
476 | }\r | |
477 | }\r | |
478 | \r | |
479 | if (!EFI_ERROR (Status) && (Private->ProxyOfferType != DHCP4_PACKET_TYPE_BINL)) {\r | |
480 | //\r | |
481 | // Copy the proxy offer to Mode and set the flag\r | |
482 | //\r | |
483 | PxeBcCopyProxyOffer (Private, ProxyOfferIndex);\r | |
484 | }\r | |
485 | } else {\r | |
486 | //\r | |
487 | // No proxy offer is received, the bootfile name MUST be set.\r | |
488 | //\r | |
489 | ASSERT (Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);\r | |
490 | }\r | |
491 | }\r | |
492 | \r | |
493 | if (!EFI_ERROR (Status)) {\r | |
494 | //\r | |
495 | // Everything is OK, set the flag and copy the DHCP packets.\r | |
496 | //\r | |
497 | Mode = Private->PxeBc.Mode;\r | |
498 | Offer = &SelectedOffer->Packet.Offer;\r | |
499 | \r | |
500 | //\r | |
501 | // The discover packet is already copied, just set flag here.\r | |
502 | //\r | |
503 | Mode->DhcpDiscoverValid = TRUE;\r | |
504 | \r | |
505 | Ack = &Private->Dhcp4Ack.Packet.Ack;\r | |
506 | if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BOOTP) {\r | |
507 | //\r | |
508 | // Other type of ACK is already cached. Bootp is special that we should\r | |
509 | // use the bootp reply as the ACK and put it into the DHCP_ONLY buffer.\r | |
510 | //\r | |
511 | PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Offer);\r | |
512 | }\r | |
513 | \r | |
514 | PxeBcParseCachedDhcpPacket (&Private->Dhcp4Ack);\r | |
515 | \r | |
516 | Mode->DhcpAckReceived = TRUE;\r | |
517 | \r | |
518 | //\r | |
519 | // Copy the dhcp ack.\r | |
520 | //\r | |
521 | CopyMem (&Mode->DhcpAck, &Ack->Dhcp4, Ack->Length);\r | |
522 | }\r | |
523 | \r | |
524 | return Status;\r | |
525 | }\r | |
526 | \r | |
527 | \r | |
528 | /**\r | |
529 | Cache the Dhcp4 packet offer, Parse and validate each option of the packet.\r | |
530 | \r | |
531 | @param Private Pointer to PxeBc private data.\r | |
532 | @param RcvdOffer Pointer to the received Dhcp proxy offer packet.\r | |
533 | \r | |
534 | @return None.\r | |
535 | \r | |
536 | **/\r | |
537 | VOID\r | |
538 | PxeBcCacheDhcpOffer (\r | |
539 | IN PXEBC_PRIVATE_DATA *Private,\r | |
540 | IN EFI_DHCP4_PACKET *RcvdOffer\r | |
541 | )\r | |
542 | {\r | |
543 | PXEBC_CACHED_DHCP4_PACKET *CachedOffer;\r | |
544 | EFI_DHCP4_PACKET *Offer;\r | |
545 | UINT8 OfferType;\r | |
546 | \r | |
547 | CachedOffer = &Private->Dhcp4Offers[Private->NumOffers];\r | |
548 | Offer = &CachedOffer->Packet.Offer;\r | |
549 | \r | |
550 | //\r | |
551 | // Cache the orignal dhcp packet\r | |
552 | //\r | |
553 | PxeBcCopyEfiDhcp4Packet (Offer, RcvdOffer);\r | |
554 | \r | |
555 | //\r | |
556 | // Parse and validate the options (including dhcp option and vendor option)\r | |
557 | //\r | |
558 | if (!PxeBcParseCachedDhcpPacket (CachedOffer)) {\r | |
559 | return ;\r | |
560 | }\r | |
561 | \r | |
562 | OfferType = CachedOffer->OfferType;\r | |
563 | \r | |
564 | if (OfferType == DHCP4_PACKET_TYPE_BOOTP) {\r | |
565 | \r | |
566 | if (Private->BootpIndex != 0) {\r | |
567 | //\r | |
568 | // Only cache the first bootp offer, discard others.\r | |
569 | //\r | |
570 | return ;\r | |
571 | } else {\r | |
572 | //\r | |
573 | // Take as a dhcp only offer, but record index specifically.\r | |
574 | //\r | |
575 | Private->BootpIndex = Private->NumOffers + 1;\r | |
576 | }\r | |
577 | } else {\r | |
578 | \r | |
579 | if (IS_PROXY_DHCP_OFFER (Offer)) {\r | |
580 | //\r | |
581 | // It's a proxy dhcp offer with no your address, including pxe10, wfm11a or binl offer.\r | |
582 | //\r | |
583 | Private->GotProxyOffer = TRUE;\r | |
584 | \r | |
585 | if (OfferType == DHCP4_PACKET_TYPE_BINL) {\r | |
586 | //\r | |
587 | // Cache all binl offers.\r | |
588 | //\r | |
589 | Private->BinlIndex[Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]] = Private->NumOffers;\r | |
590 | Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]++;\r | |
591 | } else if (Private->ProxyIndex[OfferType] != 0) {\r | |
592 | //\r | |
593 | // Only cache the first pxe10/wfm11a offers each, discard the others.\r | |
594 | //\r | |
595 | return ;\r | |
596 | } else {\r | |
597 | //\r | |
598 | // Record index of the proxy dhcp offer with type other than binl.\r | |
599 | //\r | |
600 | Private->ProxyIndex[OfferType] = Private->NumOffers + 1;\r | |
601 | }\r | |
602 | } else {\r | |
603 | //\r | |
604 | // It's a dhcp offer with your address.\r | |
605 | //\r | |
606 | Private->OfferIndex[OfferType][Private->ServerCount[OfferType]] = Private->NumOffers;\r | |
607 | Private->ServerCount[OfferType]++;\r | |
608 | }\r | |
609 | }\r | |
610 | \r | |
611 | //\r | |
612 | // Count the accepted offers.\r | |
613 | //\r | |
614 | Private->NumOffers++;\r | |
615 | }\r | |
616 | \r | |
617 | \r | |
618 | /**\r | |
619 | Select the specified proxy offer, such as BINL, DHCP_ONLY and so on.\r | |
620 | If the proxy does not exist, try offers with bootfile.\r | |
621 | \r | |
622 | @param Private Pointer to PxeBc private data.\r | |
623 | \r | |
624 | @return None\r | |
625 | \r | |
626 | **/\r | |
627 | VOID\r | |
628 | PxeBcSelectOffer (\r | |
629 | IN PXEBC_PRIVATE_DATA *Private\r | |
630 | )\r | |
631 | {\r | |
632 | UINT32 Index;\r | |
633 | UINT32 OfferIndex;\r | |
634 | EFI_DHCP4_PACKET *Offer;\r | |
635 | \r | |
636 | Private->SelectedOffer = 0;\r | |
637 | \r | |
638 | if (Private->SortOffers) {\r | |
639 | //\r | |
640 | // Select offer according to the priority\r | |
641 | //\r | |
642 | if (Private->ServerCount[DHCP4_PACKET_TYPE_PXE10] > 0) {\r | |
643 | //\r | |
644 | // DHCP with PXE10\r | |
645 | //\r | |
646 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_PXE10][0] + 1;\r | |
647 | \r | |
648 | } else if (Private->ServerCount[DHCP4_PACKET_TYPE_WFM11A] > 0) {\r | |
649 | //\r | |
650 | // DHCP with WfM\r | |
651 | //\r | |
652 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_WFM11A][0] + 1;\r | |
653 | \r | |
654 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_PXE10] > 0) &&\r | |
655 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r | |
656 | ) {\r | |
657 | //\r | |
658 | // DHCP only and proxy DHCP with PXE10\r | |
659 | //\r | |
660 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r | |
661 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_PXE10;\r | |
662 | \r | |
663 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_WFM11A] > 0) &&\r | |
664 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r | |
665 | ) {\r | |
666 | //\r | |
667 | // DHCP only and proxy DHCP with WfM\r | |
668 | //\r | |
669 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r | |
670 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_WFM11A;\r | |
671 | \r | |
672 | } else if (Private->ServerCount[DHCP4_PACKET_TYPE_BINL] > 0) {\r | |
673 | //\r | |
674 | // DHCP with BINL\r | |
675 | //\r | |
676 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_BINL][0] + 1;\r | |
677 | \r | |
678 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL] > 0) &&\r | |
679 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r | |
680 | ) {\r | |
681 | //\r | |
682 | // DHCP only and proxy DHCP with BINL\r | |
683 | //\r | |
684 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r | |
685 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_BINL;\r | |
686 | \r | |
687 | } else {\r | |
688 | //\r | |
689 | // Try offers with bootfile\r | |
690 | //\r | |
691 | for (Index = 0; Index < Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY]; Index++) {\r | |
692 | //\r | |
693 | // Select the first DHCP only offer with bootfile\r | |
694 | //\r | |
695 | OfferIndex = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][Index];\r | |
696 | if (Private->Dhcp4Offers[OfferIndex].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {\r | |
697 | Private->SelectedOffer = OfferIndex + 1;\r | |
698 | break;\r | |
699 | }\r | |
700 | }\r | |
701 | \r | |
702 | if (Private->SelectedOffer == 0) {\r | |
703 | //\r | |
704 | // Select the Bootp reply with bootfile if any\r | |
705 | //\r | |
706 | Private->SelectedOffer = Private->BootpIndex;\r | |
707 | }\r | |
708 | }\r | |
709 | } else {\r | |
710 | //\r | |
711 | // Try the offers in the received order.\r | |
712 | //\r | |
713 | for (Index = 0; Index < Private->NumOffers; Index++) {\r | |
714 | \r | |
715 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r | |
716 | \r | |
717 | if (IS_PROXY_DHCP_OFFER (Offer)) {\r | |
718 | //\r | |
719 | // Skip proxy offers\r | |
720 | //\r | |
721 | continue;\r | |
722 | }\r | |
723 | \r | |
724 | if ((Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) &&\r | |
725 | ((!Private->GotProxyOffer) && (Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL))) {\r | |
726 | //\r | |
727 | // DHCP only offer but no proxy offer received and no bootfile option in this offer\r | |
728 | //\r | |
729 | continue;\r | |
730 | }\r | |
731 | \r | |
732 | Private->SelectedOffer = Index + 1;\r | |
733 | break;\r | |
734 | }\r | |
735 | }\r | |
736 | }\r | |
737 | \r | |
738 | \r | |
739 | /**\r | |
740 | Callback routine.\r | |
741 | \r | |
742 | EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver\r | |
743 | to intercept events that occurred in the configuration process. This structure\r | |
744 | provides advanced control of each state transition of the DHCP process. The\r | |
745 | returned status code determines the behavior of the EFI DHCPv4 Protocol driver.\r | |
746 | There are three possible returned values, which are described in the following\r | |
747 | table.\r | |
748 | \r | |
749 | @param This Pointer to the EFI DHCPv4 Protocol instance that is used to\r | |
750 | configure this callback function.\r | |
751 | @param Context Pointer to the context that is initialized by\r | |
752 | EFI_DHCP4_PROTOCOL.Configure().\r | |
753 | @param CurrentState The current operational state of the EFI DHCPv4 Protocol\r | |
754 | driver.\r | |
755 | @param Dhcp4Event The event that occurs in the current state, which usually means a\r | |
756 | state transition.\r | |
757 | @param Packet The DHCP packet that is going to be sent or already received.\r | |
758 | @param NewPacket The packet that is used to replace the above Packet.\r | |
759 | \r | |
760 | @retval EFI_SUCCESS Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.\r | |
761 | @retval EFI_NOT_READY Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol\r | |
762 | driver will continue to wait for more DHCPOFFER packets until the retry\r | |
763 | timeout expires.\r | |
764 | @retval EFI_ABORTED Tells the EFI DHCPv4 Protocol driver to abort the current process and\r | |
765 | return to the Dhcp4Init or Dhcp4InitReboot state.\r | |
766 | \r | |
767 | **/\r | |
768 | EFI_STATUS\r | |
769 | EFIAPI\r | |
770 | PxeBcDhcpCallBack (\r | |
771 | IN EFI_DHCP4_PROTOCOL * This,\r | |
772 | IN VOID *Context,\r | |
773 | IN EFI_DHCP4_STATE CurrentState,\r | |
774 | IN EFI_DHCP4_EVENT Dhcp4Event,\r | |
775 | IN EFI_DHCP4_PACKET * Packet OPTIONAL,\r | |
776 | OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL\r | |
777 | )\r | |
778 | {\r | |
779 | PXEBC_PRIVATE_DATA *Private;\r | |
780 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
781 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r | |
782 | EFI_DHCP4_PACKET_OPTION *MaxMsgSize;\r | |
783 | UINT16 Value;\r | |
784 | EFI_STATUS Status;\r | |
785 | BOOLEAN Received;\r | |
786 | CHAR8 *SystemSerialNumber;\r | |
787 | EFI_DHCP4_HEADER *DhcpHeader;\r | |
788 | \r | |
789 | if ((Dhcp4Event != Dhcp4RcvdOffer) &&\r | |
790 | (Dhcp4Event != Dhcp4SelectOffer) &&\r | |
791 | (Dhcp4Event != Dhcp4SendDiscover) &&\r | |
792 | (Dhcp4Event != Dhcp4RcvdAck) &&\r | |
793 | (Dhcp4Event != Dhcp4SendRequest)) {\r | |
794 | return EFI_SUCCESS;\r | |
795 | }\r | |
796 | \r | |
797 | Private = (PXEBC_PRIVATE_DATA *) Context;\r | |
798 | Mode = Private->PxeBc.Mode;\r | |
799 | Callback = Private->PxeBcCallback;\r | |
800 | \r | |
801 | //\r | |
802 | // Override the Maximum DHCP Message Size.\r | |
803 | //\r | |
804 | MaxMsgSize = PxeBcParseExtendOptions (\r | |
805 | Packet->Dhcp4.Option,\r | |
806 | GET_OPTION_BUFFER_LEN (Packet),\r | |
807 | PXEBC_DHCP4_TAG_MAXMSG\r | |
808 | );\r | |
809 | if (MaxMsgSize != NULL) {\r | |
810 | Value = HTONS (PXEBC_DHCP4_MAX_PACKET_SIZE);\r | |
811 | CopyMem (MaxMsgSize->Data, &Value, sizeof (Value));\r | |
812 | }\r | |
813 | \r | |
814 | if ((Dhcp4Event != Dhcp4SelectOffer) && (Callback != NULL)) {\r | |
815 | Received = (BOOLEAN) ((Dhcp4Event == Dhcp4RcvdOffer) || (Dhcp4Event == Dhcp4RcvdAck));\r | |
816 | Status = Callback->Callback (\r | |
817 | Callback,\r | |
818 | Private->Function,\r | |
819 | Received,\r | |
820 | Packet->Length,\r | |
821 | (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp4\r | |
822 | );\r | |
823 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r | |
824 | return EFI_ABORTED;\r | |
825 | }\r | |
826 | }\r | |
827 | \r | |
828 | Status = EFI_SUCCESS;\r | |
829 | \r | |
830 | switch (Dhcp4Event) {\r | |
831 | \r | |
832 | case Dhcp4SendDiscover:\r | |
833 | case Dhcp4SendRequest:\r | |
834 | if (Mode->SendGUID) {\r | |
835 | //\r | |
836 | // send the system GUID instead of the MAC address as the hardware address\r | |
837 | // in the DHCP packet header.\r | |
838 | //\r | |
839 | DhcpHeader = &Packet->Dhcp4.Header;\r | |
840 | \r | |
841 | if (EFI_ERROR (GetSmbiosSystemGuidAndSerialNumber ((EFI_GUID *) DhcpHeader->ClientHwAddr, &SystemSerialNumber))) {\r | |
842 | //\r | |
843 | // GUID not yet set - send all 0xff's to show programable (via SetVariable)\r | |
844 | // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);\r | |
845 | // GUID not yet set - send all 0's to show not programable\r | |
846 | //\r | |
847 | ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));\r | |
848 | }\r | |
849 | \r | |
850 | DhcpHeader->HwAddrLen = sizeof (EFI_GUID);\r | |
851 | }\r | |
852 | \r | |
853 | if (Dhcp4Event == Dhcp4SendDiscover) {\r | |
854 | //\r | |
855 | // Cache the dhcp discover packet, of which some information will be used later.\r | |
856 | //\r | |
857 | CopyMem (Mode->DhcpDiscover.Raw, &Packet->Dhcp4, Packet->Length);\r | |
858 | }\r | |
859 | \r | |
860 | break;\r | |
861 | \r | |
862 | case Dhcp4RcvdOffer:\r | |
863 | Status = EFI_NOT_READY;\r | |
864 | if (Private->NumOffers < PXEBC_MAX_OFFER_NUM) {\r | |
865 | //\r | |
866 | // Cache the dhcp offers in Private->Dhcp4Offers[]\r | |
867 | //\r | |
868 | PxeBcCacheDhcpOffer (Private, Packet);\r | |
869 | }\r | |
870 | \r | |
871 | break;\r | |
872 | \r | |
873 | case Dhcp4SelectOffer:\r | |
874 | //\r | |
875 | // Select an offer, if succeeded, Private->SelectedOffer points to\r | |
876 | // the index of the selected one.\r | |
877 | //\r | |
878 | PxeBcSelectOffer (Private);\r | |
879 | \r | |
880 | if (Private->SelectedOffer == 0) {\r | |
881 | Status = EFI_ABORTED;\r | |
882 | } else {\r | |
883 | *NewPacket = &Private->Dhcp4Offers[Private->SelectedOffer - 1].Packet.Offer;\r | |
884 | }\r | |
885 | \r | |
886 | break;\r | |
887 | \r | |
888 | case Dhcp4RcvdAck:\r | |
889 | //\r | |
890 | // Cache Ack\r | |
891 | //\r | |
892 | ASSERT (Private->SelectedOffer != 0);\r | |
893 | \r | |
894 | PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Packet);\r | |
895 | break;\r | |
896 | \r | |
897 | default:\r | |
898 | break;\r | |
899 | }\r | |
900 | \r | |
901 | return Status;\r | |
902 | }\r | |
903 | \r | |
904 | \r | |
905 | /**\r | |
906 | Initialize the DHCP options and build the option list.\r | |
907 | \r | |
908 | @param Private Pointer to PxeBc private data.\r | |
909 | @param OptList Pointer to a DHCP option list.\r | |
910 | \r | |
911 | @param IsDhcpDiscover Discover dhcp option or not. \r | |
912 | \r | |
913 | @return The index item number of the option list.\r | |
914 | \r | |
915 | **/\r | |
916 | UINT32\r | |
917 | PxeBcBuildDhcpOptions (\r | |
918 | IN PXEBC_PRIVATE_DATA *Private,\r | |
919 | IN EFI_DHCP4_PACKET_OPTION **OptList,\r | |
920 | IN BOOLEAN IsDhcpDiscover\r | |
921 | )\r | |
922 | {\r | |
923 | UINT32 Index;\r | |
924 | PXEBC_DHCP4_OPTION_ENTRY OptEnt;\r | |
925 | UINT16 Value;\r | |
926 | CHAR8 *SystemSerialNumber;\r | |
927 | \r | |
928 | Index = 0;\r | |
929 | OptList[0] = (EFI_DHCP4_PACKET_OPTION *) Private->OptionBuffer;\r | |
930 | \r | |
931 | if (!IsDhcpDiscover) {\r | |
932 | //\r | |
933 | // Append message type.\r | |
934 | //\r | |
935 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_MSG_TYPE;\r | |
936 | OptList[Index]->Length = 1;\r | |
937 | OptEnt.Mesg = (PXEBC_DHCP4_OPTION_MESG *) OptList[Index]->Data;\r | |
938 | OptEnt.Mesg->Type = PXEBC_DHCP4_MSG_TYPE_REQUEST;\r | |
939 | Index++;\r | |
940 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
941 | \r | |
942 | //\r | |
943 | // Append max message size.\r | |
944 | //\r | |
945 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_MAXMSG;\r | |
946 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE);\r | |
947 | OptEnt.MaxMesgSize = (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *) OptList[Index]->Data;\r | |
948 | Value = NTOHS (PXEBC_DHCP4_MAX_PACKET_SIZE);\r | |
949 | CopyMem (&OptEnt.MaxMesgSize->Size, &Value, sizeof (UINT16));\r | |
950 | Index++;\r | |
951 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
952 | }\r | |
953 | //\r | |
954 | // Parameter request list option.\r | |
955 | //\r | |
956 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_PARA_LIST;\r | |
957 | OptList[Index]->Length = 35;\r | |
958 | OptEnt.Para = (PXEBC_DHCP4_OPTION_PARA *) OptList[Index]->Data;\r | |
959 | OptEnt.Para->ParaList[0] = PXEBC_DHCP4_TAG_NETMASK;\r | |
960 | OptEnt.Para->ParaList[1] = PXEBC_DHCP4_TAG_TIME_OFFSET;\r | |
961 | OptEnt.Para->ParaList[2] = PXEBC_DHCP4_TAG_ROUTER;\r | |
962 | OptEnt.Para->ParaList[3] = PXEBC_DHCP4_TAG_TIME_SERVER;\r | |
963 | OptEnt.Para->ParaList[4] = PXEBC_DHCP4_TAG_NAME_SERVER;\r | |
964 | OptEnt.Para->ParaList[5] = PXEBC_DHCP4_TAG_DNS_SERVER;\r | |
965 | OptEnt.Para->ParaList[6] = PXEBC_DHCP4_TAG_HOSTNAME;\r | |
966 | OptEnt.Para->ParaList[7] = PXEBC_DHCP4_TAG_BOOTFILE_LEN;\r | |
967 | OptEnt.Para->ParaList[8] = PXEBC_DHCP4_TAG_DOMAINNAME;\r | |
968 | OptEnt.Para->ParaList[9] = PXEBC_DHCP4_TAG_ROOTPATH;\r | |
969 | OptEnt.Para->ParaList[10] = PXEBC_DHCP4_TAG_EXTEND_PATH;\r | |
970 | OptEnt.Para->ParaList[11] = PXEBC_DHCP4_TAG_EMTU;\r | |
971 | OptEnt.Para->ParaList[12] = PXEBC_DHCP4_TAG_TTL;\r | |
972 | OptEnt.Para->ParaList[13] = PXEBC_DHCP4_TAG_BROADCAST;\r | |
973 | OptEnt.Para->ParaList[14] = PXEBC_DHCP4_TAG_NIS_DOMAIN;\r | |
974 | OptEnt.Para->ParaList[15] = PXEBC_DHCP4_TAG_NIS_SERVER;\r | |
975 | OptEnt.Para->ParaList[16] = PXEBC_DHCP4_TAG_NTP_SERVER;\r | |
976 | OptEnt.Para->ParaList[17] = PXEBC_DHCP4_TAG_VENDOR;\r | |
977 | OptEnt.Para->ParaList[18] = PXEBC_DHCP4_TAG_REQUEST_IP;\r | |
978 | OptEnt.Para->ParaList[19] = PXEBC_DHCP4_TAG_LEASE;\r | |
979 | OptEnt.Para->ParaList[20] = PXEBC_DHCP4_TAG_SERVER_ID;\r | |
980 | OptEnt.Para->ParaList[21] = PXEBC_DHCP4_TAG_T1;\r | |
981 | OptEnt.Para->ParaList[22] = PXEBC_DHCP4_TAG_T2;\r | |
982 | OptEnt.Para->ParaList[23] = PXEBC_DHCP4_TAG_CLASS_ID;\r | |
983 | OptEnt.Para->ParaList[24] = PXEBC_DHCP4_TAG_TFTP;\r | |
984 | OptEnt.Para->ParaList[25] = PXEBC_DHCP4_TAG_BOOTFILE;\r | |
985 | OptEnt.Para->ParaList[26] = PXEBC_PXE_DHCP4_TAG_UUID;\r | |
986 | OptEnt.Para->ParaList[27] = 0x80;\r | |
987 | OptEnt.Para->ParaList[28] = 0x81;\r | |
988 | OptEnt.Para->ParaList[29] = 0x82;\r | |
989 | OptEnt.Para->ParaList[30] = 0x83;\r | |
990 | OptEnt.Para->ParaList[31] = 0x84;\r | |
991 | OptEnt.Para->ParaList[32] = 0x85;\r | |
992 | OptEnt.Para->ParaList[33] = 0x86;\r | |
993 | OptEnt.Para->ParaList[34] = 0x87;\r | |
994 | Index++;\r | |
995 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
996 | \r | |
997 | //\r | |
998 | // Append UUID/Guid-based client identifier option\r | |
999 | //\r | |
1000 | OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_UUID;\r | |
1001 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_UUID);\r | |
1002 | OptEnt.Uuid = (PXEBC_DHCP4_OPTION_UUID *) OptList[Index]->Data;\r | |
1003 | OptEnt.Uuid->Type = 0;\r | |
1004 | Index++;\r | |
1005 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1006 | \r | |
1007 | if (EFI_ERROR (GetSmbiosSystemGuidAndSerialNumber ((EFI_GUID *) OptEnt.Uuid->Guid, &SystemSerialNumber))) {\r | |
1008 | //\r | |
1009 | // GUID not yet set - send all 0xff's to show programable (via SetVariable)\r | |
1010 | // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);\r | |
1011 | // GUID not yet set - send all 0's to show not programable\r | |
1012 | //\r | |
1013 | ZeroMem (OptEnt.Uuid->Guid, sizeof (EFI_GUID));\r | |
1014 | }\r | |
1015 | \r | |
1016 | //\r | |
1017 | // Append client network device interface option\r | |
1018 | //\r | |
1019 | OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_UNDI;\r | |
1020 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_UNDI);\r | |
1021 | OptEnt.Undi = (PXEBC_DHCP4_OPTION_UNDI *) OptList[Index]->Data;\r | |
1022 | if (Private->Nii != NULL) {\r | |
1023 | OptEnt.Undi->Type = Private->Nii->Type;\r | |
1024 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r | |
1025 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r | |
1026 | } else {\r | |
1027 | OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r | |
1028 | OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r | |
1029 | OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r | |
1030 | }\r | |
1031 | \r | |
1032 | Index++;\r | |
1033 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1034 | \r | |
1035 | //\r | |
1036 | // Append client system architecture option\r | |
1037 | //\r | |
1038 | OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_ARCH;\r | |
1039 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_ARCH);\r | |
1040 | OptEnt.Arch = (PXEBC_DHCP4_OPTION_ARCH *) OptList[Index]->Data;\r | |
1041 | Value = HTONS (SYS_ARCH);\r | |
1042 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r | |
1043 | Index++;\r | |
1044 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1045 | \r | |
1046 | //\r | |
1047 | // Append client system architecture option\r | |
1048 | //\r | |
1049 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_CLASS_ID;\r | |
1050 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_CLID);\r | |
1051 | OptEnt.Clid = (PXEBC_DHCP4_OPTION_CLID *) OptList[Index]->Data;\r | |
1052 | CopyMem (OptEnt.Clid, DEFAULT_CLASS_ID_DATA, sizeof (PXEBC_DHCP4_OPTION_CLID));\r | |
1053 | CvtNum (SYS_ARCH, OptEnt.Clid->ArchitectureType, sizeof (OptEnt.Clid->ArchitectureType));\r | |
1054 | \r | |
1055 | if (Private->Nii != NULL) {\r | |
1056 | // \r | |
1057 | // If NII protocol exists, update DHCP option data\r | |
1058 | //\r | |
1059 | CopyMem (OptEnt.Clid->InterfaceName, Private->Nii->StringId, sizeof (OptEnt.Clid->InterfaceName));\r | |
1060 | CvtNum (Private->Nii->MajorVer, OptEnt.Clid->UndiMajor, sizeof (OptEnt.Clid->UndiMajor));\r | |
1061 | CvtNum (Private->Nii->MinorVer, OptEnt.Clid->UndiMinor, sizeof (OptEnt.Clid->UndiMinor));\r | |
1062 | }\r | |
1063 | \r | |
1064 | Index++;\r | |
1065 | \r | |
1066 | return Index;\r | |
1067 | }\r | |
1068 | \r | |
1069 | \r | |
1070 | /**\r | |
1071 | Discover the boot of service and initialize the vendor option if exists.\r | |
1072 | \r | |
1073 | @param Private Pointer to PxeBc private data.\r | |
1074 | @param Type PxeBc option boot item type\r | |
1075 | @param Layer PxeBc option boot item layer\r | |
1076 | @param UseBis Use BIS or not\r | |
1077 | @param DestIp Ip address for server \r | |
1078 | @param IpCount The total count of the server ip address \r | |
1079 | @param SrvList Server list\r | |
1080 | @param IsDiscv Discover the vendor or not\r | |
1081 | @param Reply The dhcp4 packet of Pxe reply\r | |
1082 | \r | |
1083 | @retval EFI_SUCCESS Operation succeeds.\r | |
1084 | @retval EFI_OUT_OF_RESOURCES Allocate memory pool failed.\r | |
1085 | @retval EFI_NOT_FOUND There is no vendor option exists.\r | |
1086 | @retval EFI_TIMEOUT Send Pxe Discover time out. \r | |
1087 | \r | |
1088 | **/\r | |
1089 | EFI_STATUS\r | |
1090 | PxeBcDiscvBootService (\r | |
1091 | IN PXEBC_PRIVATE_DATA * Private,\r | |
1092 | IN UINT16 Type,\r | |
1093 | IN UINT16 *Layer,\r | |
1094 | IN BOOLEAN UseBis,\r | |
1095 | IN EFI_IP_ADDRESS * DestIp,\r | |
1096 | IN UINT16 IpCount,\r | |
1097 | IN EFI_PXE_BASE_CODE_SRVLIST * SrvList,\r | |
1098 | IN BOOLEAN IsDiscv,\r | |
1099 | OUT EFI_DHCP4_PACKET * Reply OPTIONAL\r | |
1100 | )\r | |
1101 | {\r | |
1102 | EFI_PXE_BASE_CODE_UDP_PORT Sport;\r | |
1103 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1104 | EFI_DHCP4_PROTOCOL *Dhcp4;\r | |
1105 | EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;\r | |
1106 | BOOLEAN IsBCast;\r | |
1107 | EFI_STATUS Status;\r | |
1108 | UINT16 RepIndex;\r | |
1109 | UINT16 SrvIndex;\r | |
1110 | UINT16 TryIndex;\r | |
1111 | EFI_DHCP4_LISTEN_POINT ListenPoint;\r | |
1112 | EFI_DHCP4_PACKET *Response;\r | |
1113 | EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_MAX_OPTION_NUM];\r | |
1114 | UINT32 OptCount;\r | |
1115 | EFI_DHCP4_PACKET_OPTION *PxeOpt;\r | |
1116 | PXEBC_OPTION_BOOT_ITEM *PxeBootItem;\r | |
1117 | UINT8 VendorOptLen;\r | |
1118 | CHAR8 *SystemSerialNumber;\r | |
1119 | EFI_DHCP4_HEADER *DhcpHeader;\r | |
1120 | \r | |
1121 | \r | |
1122 | Mode = Private->PxeBc.Mode;\r | |
1123 | Dhcp4 = Private->Dhcp4;\r | |
1124 | Status = EFI_SUCCESS;\r | |
1125 | \r | |
1126 | ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));\r | |
1127 | \r | |
1128 | if (DestIp == NULL) {\r | |
1129 | Sport = PXEBC_DHCP4_S_PORT;\r | |
1130 | IsBCast = TRUE;\r | |
1131 | } else {\r | |
1132 | Sport = PXEBC_BS_DISCOVER_PORT;\r | |
1133 | IsBCast = FALSE;\r | |
1134 | }\r | |
1135 | \r | |
1136 | if (!UseBis && Layer != NULL) {\r | |
1137 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r | |
1138 | }\r | |
1139 | \r | |
1140 | OptCount = PxeBcBuildDhcpOptions (Private, OptList, FALSE);\r | |
1141 | \r | |
1142 | if (IsDiscv) {\r | |
1143 | //\r | |
1144 | // Add vendor option of PXE_BOOT_ITEM\r | |
1145 | //\r | |
1146 | VendorOptLen = (sizeof (EFI_DHCP4_PACKET_OPTION) - 1) * 2 + sizeof (PXEBC_OPTION_BOOT_ITEM) + 1;\r | |
1147 | OptList[OptCount] = AllocatePool (VendorOptLen);\r | |
1148 | if (OptList[OptCount] == NULL) {\r | |
1149 | return EFI_OUT_OF_RESOURCES;\r | |
1150 | }\r | |
1151 | \r | |
1152 | OptList[OptCount]->OpCode = PXEBC_DHCP4_TAG_VENDOR;\r | |
1153 | OptList[OptCount]->Length = (UINT8) (VendorOptLen - 2);\r | |
1154 | PxeOpt = (EFI_DHCP4_PACKET_OPTION *) OptList[OptCount]->Data;\r | |
1155 | PxeOpt->OpCode = PXEBC_VENDOR_TAG_BOOT_ITEM;\r | |
1156 | PxeOpt->Length = sizeof (PXEBC_OPTION_BOOT_ITEM);\r | |
1157 | PxeBootItem = (PXEBC_OPTION_BOOT_ITEM *) PxeOpt->Data;\r | |
1158 | PxeBootItem->Type = HTONS (Type);\r | |
1159 | PxeBootItem->Layer = HTONS (*Layer);\r | |
1160 | PxeOpt->Data[PxeOpt->Length] = PXEBC_DHCP4_TAG_EOP;\r | |
1161 | \r | |
1162 | OptCount++;\r | |
1163 | }\r | |
1164 | \r | |
1165 | Status = Dhcp4->Build (Dhcp4, &Private->SeedPacket, 0, NULL, OptCount, OptList, &Token.Packet);\r | |
1166 | \r | |
1167 | if (IsDiscv) {\r | |
1168 | gBS->FreePool (OptList[OptCount - 1]);\r | |
1169 | }\r | |
1170 | \r | |
1171 | if (EFI_ERROR (Status)) {\r | |
1172 | return Status;\r | |
1173 | }\r | |
1174 | \r | |
1175 | DhcpHeader = &Token.Packet->Dhcp4.Header;\r | |
1176 | if (Mode->SendGUID) {\r | |
1177 | if (EFI_ERROR (GetSmbiosSystemGuidAndSerialNumber ((EFI_GUID *) DhcpHeader->ClientHwAddr, &SystemSerialNumber))) {\r | |
1178 | //\r | |
1179 | // GUID not yet set - send all 0's to show not programable\r | |
1180 | //\r | |
1181 | ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));\r | |
1182 | }\r | |
1183 | \r | |
1184 | DhcpHeader->HwAddrLen = sizeof (EFI_GUID);\r | |
1185 | }\r | |
1186 | \r | |
1187 | Token.Packet->Dhcp4.Header.Xid = NET_RANDOM (NetRandomInitSeed ());\r | |
1188 | Token.Packet->Dhcp4.Header.Reserved = (UINT16) ((IsBCast) ? 0xf000 : 0x0);\r | |
1189 | CopyMem (&Token.Packet->Dhcp4.Header.ClientAddr, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));\r | |
1190 | \r | |
1191 | Token.RemotePort = Sport;\r | |
1192 | \r | |
1193 | if (DestIp == NULL) {\r | |
1194 | SetMem (&Token.RemoteAddress, sizeof (EFI_IPv4_ADDRESS), 0xff);\r | |
1195 | } else {\r | |
1196 | CopyMem (&Token.RemoteAddress, DestIp, sizeof (EFI_IPv4_ADDRESS));\r | |
1197 | }\r | |
1198 | \r | |
1199 | CopyMem (&Token.GatewayAddress, &Private->GatewayIp, sizeof (EFI_IPv4_ADDRESS));\r | |
1200 | \r | |
1201 | if (!IsBCast) {\r | |
1202 | Token.ListenPointCount = 1;\r | |
1203 | Token.ListenPoints = &ListenPoint;\r | |
1204 | Token.ListenPoints[0].ListenPort = PXEBC_BS_DISCOVER_PORT;\r | |
1205 | CopyMem (&Token.ListenPoints[0].ListenAddress, &Private->StationIp, sizeof(EFI_IPv4_ADDRESS));\r | |
1206 | CopyMem (&Token.ListenPoints[0].SubnetMask, &Private->SubnetMask, sizeof(EFI_IPv4_ADDRESS));\r | |
1207 | }\r | |
1208 | //\r | |
1209 | // Send Pxe Discover\r | |
1210 | //\r | |
1211 | for (TryIndex = 1; TryIndex <= PXEBC_BOOT_REQUEST_RETRIES; TryIndex++) {\r | |
1212 | \r | |
1213 | Token.TimeoutValue = PXEBC_BOOT_REQUEST_TIMEOUT * TryIndex;\r | |
1214 | \r | |
1215 | Status = Dhcp4->TransmitReceive (Dhcp4, &Token);\r | |
1216 | \r | |
1217 | if (Token.Status != EFI_TIMEOUT) {\r | |
1218 | break;\r | |
1219 | }\r | |
1220 | }\r | |
1221 | \r | |
1222 | if (!EFI_ERROR (Status)) {\r | |
1223 | //\r | |
1224 | // Find Pxe Reply\r | |
1225 | //\r | |
1226 | RepIndex = 0;\r | |
1227 | SrvIndex = 0;\r | |
1228 | Response = Token.ResponseList;\r | |
1229 | \r | |
1230 | while (RepIndex < Token.ResponseCount) {\r | |
1231 | \r | |
1232 | while (SrvIndex < IpCount) {\r | |
1233 | \r | |
1234 | if (SrvList[SrvIndex].AcceptAnyResponse) {\r | |
1235 | break;\r | |
1236 | }\r | |
1237 | \r | |
1238 | if ((SrvList[SrvIndex].Type == Type) && EFI_IP4_EQUAL (&(Response->Dhcp4.Header.ServerAddr), &(Private->ServerIp))) {\r | |
1239 | break;\r | |
1240 | }\r | |
1241 | \r | |
1242 | SrvIndex++;\r | |
1243 | }\r | |
1244 | \r | |
1245 | if ((IpCount != SrvIndex) || (IpCount == 0)) {\r | |
1246 | break;\r | |
1247 | }\r | |
1248 | \r | |
1249 | SrvIndex = 0;\r | |
1250 | RepIndex++;\r | |
1251 | \r | |
1252 | Response = (EFI_DHCP4_PACKET *) ((UINT8 *) Response + Response->Size);\r | |
1253 | }\r | |
1254 | \r | |
1255 | if (RepIndex < Token.ResponseCount) {\r | |
1256 | \r | |
1257 | if (Reply != NULL) {\r | |
1258 | PxeBcCopyEfiDhcp4Packet (Reply, Response);\r | |
1259 | }\r | |
1260 | \r | |
1261 | if (IsDiscv) {\r | |
1262 | CopyMem (&(Mode->PxeDiscover), &(Token.Packet->Dhcp4), Token.Packet->Length);\r | |
1263 | Mode->PxeDiscoverValid = TRUE;\r | |
1264 | \r | |
1265 | CopyMem (Mode->PxeReply.Raw, &Response->Dhcp4, Response->Length);\r | |
1266 | Mode->PxeReplyReceived = TRUE;\r | |
1267 | }\r | |
1268 | } else {\r | |
1269 | Status = EFI_NOT_FOUND;\r | |
1270 | }\r | |
1271 | \r | |
1272 | //\r | |
1273 | // free the responselist\r | |
1274 | //\r | |
1275 | gBS->FreePool (Token.ResponseList);\r | |
1276 | }\r | |
1277 | //\r | |
1278 | // Free the dhcp packet\r | |
1279 | //\r | |
1280 | gBS->FreePool (Token.Packet);\r | |
1281 | \r | |
1282 | return Status;\r | |
1283 | }\r | |
1284 | \r | |
1285 | \r | |
1286 | /**\r | |
1287 | Parse interested dhcp options.\r | |
1288 | \r | |
1289 | @param Buffer Pointer to the dhcp options packet.\r | |
1290 | @param Length The length of the dhcp options.\r | |
1291 | @param OptTag The option OpCode.\r | |
1292 | \r | |
1293 | @return NULL if the buffer length is 0 and OpCode is not \r | |
1294 | PXEBC_DHCP4_TAG_EOP, or the pointer to the buffer.\r | |
1295 | \r | |
1296 | **/\r | |
1297 | EFI_DHCP4_PACKET_OPTION *\r | |
1298 | PxeBcParseExtendOptions (\r | |
1299 | IN UINT8 *Buffer,\r | |
1300 | IN UINT32 Length,\r | |
1301 | IN UINT8 OptTag\r | |
1302 | )\r | |
1303 | {\r | |
1304 | EFI_DHCP4_PACKET_OPTION *Option;\r | |
1305 | UINT32 Offset;\r | |
1306 | \r | |
1307 | Option = (EFI_DHCP4_PACKET_OPTION *) Buffer;\r | |
1308 | Offset = 0;\r | |
1309 | \r | |
1310 | while (Offset < Length && Option->OpCode != PXEBC_DHCP4_TAG_EOP) {\r | |
1311 | \r | |
1312 | if (Option->OpCode == OptTag) {\r | |
1313 | \r | |
1314 | return Option;\r | |
1315 | }\r | |
1316 | \r | |
1317 | if (Option->OpCode == PXEBC_DHCP4_TAG_PAD) {\r | |
1318 | Offset++;\r | |
1319 | } else {\r | |
1320 | Offset += Option->Length + 2;\r | |
1321 | }\r | |
1322 | \r | |
1323 | Option = (EFI_DHCP4_PACKET_OPTION *) (Buffer + Offset);\r | |
1324 | }\r | |
1325 | \r | |
1326 | return NULL;\r | |
1327 | }\r | |
1328 | \r | |
1329 | \r | |
1330 | /**\r | |
1331 | This function is to parse and check vendor options.\r | |
1332 | \r | |
1333 | @param Dhcp4Option Pointer to dhcp options\r | |
1334 | @param VendorOption Pointer to vendor options\r | |
1335 | \r | |
1336 | @return TRUE if valid for vendor options, or FALSE.\r | |
1337 | \r | |
1338 | **/\r | |
1339 | BOOLEAN\r | |
1340 | PxeBcParseVendorOptions (\r | |
1341 | IN EFI_DHCP4_PACKET_OPTION *Dhcp4Option,\r | |
1342 | IN PXEBC_VENDOR_OPTION *VendorOption\r | |
1343 | )\r | |
1344 | {\r | |
1345 | UINT32 *BitMap;\r | |
1346 | UINT8 VendorOptionLen;\r | |
1347 | EFI_DHCP4_PACKET_OPTION *PxeOption;\r | |
1348 | UINT8 Offset;\r | |
1349 | \r | |
1350 | BitMap = VendorOption->BitMap;\r | |
1351 | VendorOptionLen = Dhcp4Option->Length;\r | |
1352 | PxeOption = (EFI_DHCP4_PACKET_OPTION *) &Dhcp4Option->Data[0];\r | |
1353 | Offset = 0;\r | |
1354 | \r | |
1355 | while ((Offset < VendorOptionLen) && (PxeOption->OpCode != PXEBC_DHCP4_TAG_EOP)) {\r | |
1356 | //\r | |
1357 | // Parse every Vendor Option and set its BitMap\r | |
1358 | //\r | |
1359 | switch (PxeOption->OpCode) {\r | |
1360 | \r | |
1361 | case PXEBC_VENDOR_TAG_MTFTP_IP:\r | |
1362 | \r | |
1363 | CopyMem (&VendorOption->MtftpIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r | |
1364 | break;\r | |
1365 | \r | |
1366 | case PXEBC_VENDOR_TAG_MTFTP_CPORT:\r | |
1367 | \r | |
1368 | CopyMem (&VendorOption->MtftpCPort, PxeOption->Data, sizeof (VendorOption->MtftpCPort));\r | |
1369 | break;\r | |
1370 | \r | |
1371 | case PXEBC_VENDOR_TAG_MTFTP_SPORT:\r | |
1372 | \r | |
1373 | CopyMem (&VendorOption->MtftpSPort, PxeOption->Data, sizeof (VendorOption->MtftpSPort));\r | |
1374 | break;\r | |
1375 | \r | |
1376 | case PXEBC_VENDOR_TAG_MTFTP_TIMEOUT:\r | |
1377 | \r | |
1378 | VendorOption->MtftpTimeout = *PxeOption->Data;\r | |
1379 | break;\r | |
1380 | \r | |
1381 | case PXEBC_VENDOR_TAG_MTFTP_DELAY:\r | |
1382 | \r | |
1383 | VendorOption->MtftpDelay = *PxeOption->Data;\r | |
1384 | break;\r | |
1385 | \r | |
1386 | case PXEBC_VENDOR_TAG_DISCOVER_CTRL:\r | |
1387 | \r | |
1388 | VendorOption->DiscoverCtrl = *PxeOption->Data;\r | |
1389 | break;\r | |
1390 | \r | |
1391 | case PXEBC_VENDOR_TAG_DISCOVER_MCAST:\r | |
1392 | \r | |
1393 | CopyMem (&VendorOption->DiscoverMcastIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r | |
1394 | break;\r | |
1395 | \r | |
1396 | case PXEBC_VENDOR_TAG_BOOT_SERVERS:\r | |
1397 | \r | |
1398 | VendorOption->BootSvrLen = PxeOption->Length;\r | |
1399 | VendorOption->BootSvr = (PXEBC_BOOT_SVR_ENTRY *) PxeOption->Data;\r | |
1400 | break;\r | |
1401 | \r | |
1402 | case PXEBC_VENDOR_TAG_BOOT_MENU:\r | |
1403 | \r | |
1404 | VendorOption->BootMenuLen = PxeOption->Length;\r | |
1405 | VendorOption->BootMenu = (PXEBC_BOOT_MENU_ENTRY *) PxeOption->Data;\r | |
1406 | break;\r | |
1407 | \r | |
1408 | case PXEBC_VENDOR_TAG_MENU_PROMPT:\r | |
1409 | \r | |
1410 | VendorOption->MenuPromptLen = PxeOption->Length;\r | |
1411 | VendorOption->MenuPrompt = (PXEBC_MENU_PROMPT *) PxeOption->Data;\r | |
1412 | break;\r | |
1413 | \r | |
1414 | case PXEBC_VENDOR_TAG_MCAST_ALLOC:\r | |
1415 | \r | |
1416 | CopyMem (&VendorOption->McastIpBase, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r | |
1417 | CopyMem (&VendorOption->McastIpBlock, PxeOption->Data + 4, sizeof (VendorOption->McastIpBlock));\r | |
1418 | CopyMem (&VendorOption->McastIpRange, PxeOption->Data + 6, sizeof (VendorOption->McastIpRange));\r | |
1419 | break;\r | |
1420 | \r | |
1421 | case PXEBC_VENDOR_TAG_CREDENTIAL_TYPES:\r | |
1422 | \r | |
1423 | VendorOption->CredTypeLen = PxeOption->Length;\r | |
1424 | VendorOption->CredType = (UINT32 *) PxeOption->Data;\r | |
1425 | break;\r | |
1426 | \r | |
1427 | case PXEBC_VENDOR_TAG_BOOT_ITEM:\r | |
1428 | \r | |
1429 | CopyMem (&VendorOption->BootSrvType, PxeOption->Data, sizeof (VendorOption->BootSrvType));\r | |
1430 | CopyMem (&VendorOption->BootSrvLayer, PxeOption->Data + 2, sizeof (VendorOption->BootSrvLayer));\r | |
1431 | break;\r | |
1432 | }\r | |
1433 | \r | |
1434 | SET_VENDOR_OPTION_BIT_MAP (BitMap, PxeOption->OpCode);\r | |
1435 | \r | |
1436 | if (PxeOption->OpCode == PXEBC_DHCP4_TAG_PAD) {\r | |
1437 | Offset++;\r | |
1438 | } else {\r | |
1439 | Offset = (UINT8) (Offset + PxeOption->Length + 2);\r | |
1440 | }\r | |
1441 | \r | |
1442 | PxeOption = (EFI_DHCP4_PACKET_OPTION *) (Dhcp4Option->Data + Offset);\r | |
1443 | }\r | |
1444 | \r | |
1445 | //\r | |
1446 | // FixMe, return falas if invalid of any vendor option\r | |
1447 | //\r | |
1448 | \r | |
1449 | return TRUE;\r | |
1450 | }\r | |
1451 | \r | |
1452 | \r | |
1453 | /**\r | |
1454 | This function display boot item detail.\r | |
1455 | \r | |
1456 | If the length of the boot item string over 70 Char, just display 70 Char. \r | |
1457 | \r | |
1458 | @param Str Pointer to a string (boot item string).\r | |
1459 | @param Len The length of string.\r | |
1460 | \r | |
1461 | @return None.\r | |
1462 | \r | |
1463 | **/\r | |
1464 | VOID\r | |
1465 | PxeBcDisplayBootItem (\r | |
1466 | IN UINT8 *Str,\r | |
1467 | IN UINT8 Len\r | |
1468 | )\r | |
1469 | {\r | |
1470 | UINT8 Tmp;\r | |
1471 | \r | |
1472 | Len = (UINT8) MIN (70, Len);\r | |
1473 | Tmp = Str[Len];\r | |
1474 | Str[Len] = 0;\r | |
1475 | AsciiPrint ("%a \n", Str);\r | |
1476 | Str[Len] = Tmp;\r | |
1477 | }\r | |
1478 | \r | |
1479 | \r | |
1480 | /**\r | |
1481 | Choose the boot prompt.\r | |
1482 | \r | |
1483 | @param Private Pointer to PxeBc private data.\r | |
1484 | \r | |
1485 | @retval EFI_SUCCESS Select boot prompt done.\r | |
1486 | @retval EFI_TIMEOUT Select boot prompt time out. \r | |
1487 | @retval EFI_NOT_FOUND The proxy offer is not Pxe10.\r | |
1488 | @retval EFI_ABORTED User cancel the operation.\r | |
1489 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r | |
1490 | \r | |
1491 | **/\r | |
1492 | EFI_STATUS\r | |
1493 | PxeBcSelectBootPrompt (\r | |
1494 | IN PXEBC_PRIVATE_DATA *Private\r | |
1495 | )\r | |
1496 | {\r | |
1497 | PXEBC_CACHED_DHCP4_PACKET *Packet;\r | |
1498 | PXEBC_VENDOR_OPTION *VendorOpt;\r | |
1499 | EFI_EVENT TimeoutEvent;\r | |
1500 | EFI_EVENT DescendEvent;\r | |
1501 | EFI_INPUT_KEY InputKey;\r | |
1502 | EFI_STATUS Status;\r | |
1503 | UINT8 Timeout;\r | |
1504 | UINT8 *Prompt;\r | |
1505 | UINT8 PromptLen;\r | |
1506 | INT32 SecCol;\r | |
1507 | INT32 SecRow;\r | |
1508 | \r | |
1509 | TimeoutEvent = NULL;\r | |
1510 | DescendEvent = NULL;\r | |
1511 | \r | |
1512 | if (Private->PxeBc.Mode->ProxyOfferReceived) {\r | |
1513 | \r | |
1514 | Packet = &Private->ProxyOffer;\r | |
1515 | } else {\r | |
1516 | \r | |
1517 | Packet = &Private->Dhcp4Ack;\r | |
1518 | }\r | |
1519 | \r | |
1520 | if (Packet->OfferType != DHCP4_PACKET_TYPE_PXE10) {\r | |
1521 | return EFI_NOT_FOUND;\r | |
1522 | }\r | |
1523 | \r | |
1524 | VendorOpt = &Packet->PxeVendorOption;\r | |
1525 | \r | |
1526 | if (!IS_VALID_BOOT_PROMPT (VendorOpt->BitMap)) {\r | |
1527 | return EFI_SUCCESS;\r | |
1528 | }\r | |
1529 | \r | |
1530 | Timeout = VendorOpt->MenuPrompt->Timeout;\r | |
1531 | Prompt = VendorOpt->MenuPrompt->Prompt;\r | |
1532 | PromptLen = (UINT8) (VendorOpt->MenuPromptLen - 1);\r | |
1533 | \r | |
1534 | if (Timeout == 0) {\r | |
1535 | return EFI_SUCCESS;\r | |
1536 | }\r | |
1537 | \r | |
1538 | if (Timeout == 255) {\r | |
1539 | return EFI_TIMEOUT;\r | |
1540 | }\r | |
1541 | \r | |
1542 | Status = gBS->CreateEvent (\r | |
1543 | EVT_TIMER,\r | |
1544 | TPL_CALLBACK,\r | |
1545 | NULL,\r | |
1546 | NULL,\r | |
1547 | &TimeoutEvent\r | |
1548 | );\r | |
1549 | \r | |
1550 | if (EFI_ERROR (Status)) {\r | |
1551 | return Status;\r | |
1552 | }\r | |
1553 | \r | |
1554 | Status = gBS->SetTimer (\r | |
1555 | TimeoutEvent,\r | |
1556 | TimerRelative,\r | |
1557 | Timeout * TICKS_PER_SECOND\r | |
1558 | );\r | |
1559 | \r | |
1560 | if (EFI_ERROR (Status)) {\r | |
1561 | goto ON_EXIT;\r | |
1562 | }\r | |
1563 | \r | |
1564 | Status = gBS->CreateEvent (\r | |
1565 | EVT_TIMER,\r | |
1566 | TPL_CALLBACK,\r | |
1567 | NULL,\r | |
1568 | NULL,\r | |
1569 | &DescendEvent\r | |
1570 | );\r | |
1571 | \r | |
1572 | if (EFI_ERROR (Status)) {\r | |
1573 | goto ON_EXIT;\r | |
1574 | }\r | |
1575 | \r | |
1576 | Status = gBS->SetTimer (\r | |
1577 | DescendEvent,\r | |
1578 | TimerPeriodic,\r | |
1579 | TICKS_PER_SECOND\r | |
1580 | );\r | |
1581 | \r | |
1582 | if (EFI_ERROR (Status)) {\r | |
1583 | goto ON_EXIT;\r | |
1584 | }\r | |
1585 | \r | |
1586 | SecCol = gST->ConOut->Mode->CursorColumn;\r | |
1587 | SecRow = gST->ConOut->Mode->CursorRow;\r | |
1588 | \r | |
1589 | PxeBcDisplayBootItem (Prompt, PromptLen);\r | |
1590 | \r | |
1591 | gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);\r | |
1592 | AsciiPrint ("(%d) ", Timeout--);\r | |
1593 | \r | |
1594 | while (EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {\r | |
1595 | \r | |
1596 | if (!EFI_ERROR (gBS->CheckEvent (DescendEvent))) {\r | |
1597 | gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);\r | |
1598 | AsciiPrint ("(%d) ", Timeout--);\r | |
1599 | }\r | |
1600 | \r | |
1601 | if (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {\r | |
1602 | \r | |
1603 | gBS->Stall (10 * TICKS_PER_MS);\r | |
1604 | continue;\r | |
1605 | }\r | |
1606 | \r | |
1607 | if (InputKey.ScanCode == 0) {\r | |
1608 | \r | |
1609 | switch (InputKey.UnicodeChar) {\r | |
1610 | case CTRL ('c'):\r | |
1611 | Status = EFI_ABORTED;\r | |
1612 | break;\r | |
1613 | \r | |
1614 | case CTRL ('m'):\r | |
1615 | case 'm':\r | |
1616 | case 'M':\r | |
1617 | Status = EFI_TIMEOUT;\r | |
1618 | break;\r | |
1619 | \r | |
1620 | default:\r | |
1621 | continue;\r | |
1622 | }\r | |
1623 | } else {\r | |
1624 | \r | |
1625 | switch (InputKey.ScanCode) {\r | |
1626 | case SCAN_F8:\r | |
1627 | Status = EFI_TIMEOUT;\r | |
1628 | break;\r | |
1629 | \r | |
1630 | case SCAN_ESC:\r | |
1631 | Status = EFI_ABORTED;\r | |
1632 | break;\r | |
1633 | \r | |
1634 | default:\r | |
1635 | continue;\r | |
1636 | }\r | |
1637 | }\r | |
1638 | \r | |
1639 | break;\r | |
1640 | }\r | |
1641 | \r | |
1642 | gST->ConOut->SetCursorPosition (gST->ConOut, 0 , SecRow + 1);\r | |
1643 | \r | |
1644 | ON_EXIT:\r | |
1645 | \r | |
1646 | if (DescendEvent != NULL) {\r | |
1647 | gBS->CloseEvent (DescendEvent);\r | |
1648 | }\r | |
1649 | \r | |
1650 | if (TimeoutEvent != NULL) {\r | |
1651 | gBS->CloseEvent (TimeoutEvent);\r | |
1652 | }\r | |
1653 | \r | |
1654 | return Status;\r | |
1655 | }\r | |
1656 | \r | |
1657 | \r | |
1658 | /**\r | |
1659 | Select the boot menu.\r | |
1660 | \r | |
1661 | @param Private Pointer to PxeBc private data.\r | |
1662 | @param Type The type of the menu.\r | |
1663 | @param UseDefaultItem Use default item or not.\r | |
1664 | \r | |
1665 | @retval EFI_ABORTED User cancel operation.\r | |
1666 | @retval EFI_SUCCESS Select the boot menu success.\r | |
1667 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish. \r | |
1668 | \r | |
1669 | **/\r | |
1670 | EFI_STATUS\r | |
1671 | PxeBcSelectBootMenu (\r | |
1672 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1673 | OUT UINT16 *Type,\r | |
1674 | IN BOOLEAN UseDefaultItem\r | |
1675 | )\r | |
1676 | {\r | |
1677 | PXEBC_CACHED_DHCP4_PACKET *Packet;\r | |
1678 | PXEBC_VENDOR_OPTION *VendorOpt;\r | |
1679 | EFI_INPUT_KEY InputKey;\r | |
1680 | UINT8 MenuSize;\r | |
1681 | UINT8 MenuNum;\r | |
1682 | INT32 TopRow;\r | |
1683 | UINT16 Select;\r | |
1684 | UINT16 LastSelect;\r | |
1685 | UINT8 Index;\r | |
1686 | BOOLEAN Finish;\r | |
1687 | CHAR8 Blank[70];\r | |
1688 | PXEBC_BOOT_MENU_ENTRY *MenuItem;\r | |
1689 | PXEBC_BOOT_MENU_ENTRY *MenuArray[PXEBC_MAX_MENU_NUM];\r | |
1690 | \r | |
1691 | Finish = FALSE;\r | |
1692 | Select = 1;\r | |
1693 | Index = 0;\r | |
1694 | *Type = 0;\r | |
1695 | \r | |
1696 | if (Private->PxeBc.Mode->ProxyOfferReceived) {\r | |
1697 | \r | |
1698 | Packet = &Private->ProxyOffer;\r | |
1699 | } else {\r | |
1700 | \r | |
1701 | Packet = &Private->Dhcp4Ack;\r | |
1702 | }\r | |
1703 | \r | |
1704 | ASSERT (Packet->OfferType == DHCP4_PACKET_TYPE_PXE10);\r | |
1705 | \r | |
1706 | VendorOpt = &Packet->PxeVendorOption;\r | |
1707 | \r | |
1708 | if (!IS_VALID_BOOT_MENU (VendorOpt->BitMap)) {\r | |
1709 | return EFI_SUCCESS;\r | |
1710 | }\r | |
1711 | \r | |
1712 | SetMem (Blank, sizeof(Blank), ' ');\r | |
1713 | \r | |
1714 | MenuSize = VendorOpt->BootMenuLen;\r | |
1715 | MenuItem = VendorOpt->BootMenu;\r | |
1716 | \r | |
1717 | while (MenuSize > 0) {\r | |
1718 | MenuArray[Index] = MenuItem;\r | |
1719 | MenuSize = (UINT8) (MenuSize - (MenuItem->DescLen + 3));\r | |
1720 | MenuItem = (PXEBC_BOOT_MENU_ENTRY *) ((UINT8 *) MenuItem + MenuItem->DescLen + 3);\r | |
1721 | Index++;\r | |
1722 | }\r | |
1723 | \r | |
1724 | if (UseDefaultItem) {\r | |
1725 | CopyMem (Type, &MenuArray[0]->Type, sizeof (UINT16));\r | |
1726 | *Type = NTOHS (*Type);\r | |
1727 | return EFI_SUCCESS;\r | |
1728 | }\r | |
1729 | \r | |
1730 | MenuNum = Index;\r | |
1731 | \r | |
1732 | for (Index = 0; Index < MenuNum; Index++) {\r | |
1733 | PxeBcDisplayBootItem (MenuArray[Index]->DescStr, MenuArray[Index]->DescLen);\r | |
1734 | }\r | |
1735 | \r | |
1736 | TopRow = gST->ConOut->Mode->CursorRow - MenuNum;\r | |
1737 | \r | |
1738 | do {\r | |
1739 | //\r | |
1740 | // highlight selected row\r | |
1741 | //\r | |
1742 | gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_BLACK, EFI_LIGHTGRAY));\r | |
1743 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + Select);\r | |
1744 | Blank[MenuArray[Select]->DescLen] = 0;\r | |
1745 | AsciiPrint ("%a\r", Blank);\r | |
1746 | PxeBcDisplayBootItem (MenuArray[Select]->DescStr, MenuArray[Select]->DescLen);\r | |
1747 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);\r | |
1748 | LastSelect = Select;\r | |
1749 | \r | |
1750 | while (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {\r | |
1751 | gBS->Stall (10 * TICKS_PER_MS);\r | |
1752 | }\r | |
1753 | \r | |
1754 | if (!InputKey.ScanCode) {\r | |
1755 | switch (InputKey.UnicodeChar) {\r | |
1756 | case CTRL ('c'):\r | |
1757 | InputKey.ScanCode = SCAN_ESC;\r | |
1758 | break;\r | |
1759 | \r | |
1760 | case CTRL ('j'): /* linefeed */\r | |
1761 | case CTRL ('m'): /* return */\r | |
1762 | Finish = TRUE;\r | |
1763 | break;\r | |
1764 | \r | |
1765 | case CTRL ('i'): /* tab */\r | |
1766 | case ' ':\r | |
1767 | case 'd':\r | |
1768 | case 'D':\r | |
1769 | InputKey.ScanCode = SCAN_DOWN;\r | |
1770 | break;\r | |
1771 | \r | |
1772 | case CTRL ('h'): /* backspace */\r | |
1773 | case 'u':\r | |
1774 | case 'U':\r | |
1775 | InputKey.ScanCode = SCAN_UP;\r | |
1776 | break;\r | |
1777 | \r | |
1778 | default:\r | |
1779 | InputKey.ScanCode = 0;\r | |
1780 | }\r | |
1781 | }\r | |
1782 | \r | |
1783 | switch (InputKey.ScanCode) {\r | |
1784 | case SCAN_LEFT:\r | |
1785 | case SCAN_UP:\r | |
1786 | if (Select > 0) {\r | |
1787 | --Select;\r | |
1788 | }\r | |
1789 | \r | |
1790 | break;\r | |
1791 | \r | |
1792 | case SCAN_DOWN:\r | |
1793 | case SCAN_RIGHT:\r | |
1794 | if (++Select == MenuNum) {\r | |
1795 | --Select;\r | |
1796 | }\r | |
1797 | \r | |
1798 | break;\r | |
1799 | \r | |
1800 | case SCAN_PAGE_UP:\r | |
1801 | case SCAN_HOME:\r | |
1802 | Select = 0;\r | |
1803 | break;\r | |
1804 | \r | |
1805 | case SCAN_PAGE_DOWN:\r | |
1806 | case SCAN_END:\r | |
1807 | Select = (UINT16) (MenuNum - 1);\r | |
1808 | break;\r | |
1809 | \r | |
1810 | case SCAN_ESC:\r | |
1811 | return EFI_ABORTED;\r | |
1812 | }\r | |
1813 | \r | |
1814 | /* unhighlight last selected row */\r | |
1815 | gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));\r | |
1816 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + LastSelect);\r | |
1817 | Blank[MenuArray[LastSelect]->DescLen] = 0;\r | |
1818 | AsciiPrint ("%a\r", Blank);\r | |
1819 | PxeBcDisplayBootItem (MenuArray[LastSelect]->DescStr, MenuArray[LastSelect]->DescLen);\r | |
1820 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);\r | |
1821 | } while (!Finish);\r | |
1822 | \r | |
1823 | //\r | |
1824 | // Swap the byte order\r | |
1825 | //\r | |
1826 | CopyMem (Type, &MenuArray[Select]->Type, sizeof (UINT16));\r | |
1827 | *Type = NTOHS (*Type);\r | |
1828 | \r | |
1829 | return EFI_SUCCESS;\r | |
1830 | }\r | |
1831 | \r |