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dc361cc5 | 1 | /** @file\r |
f737cfb9 | 2 | Support for PxeBc dhcp functions.\r |
e2851998 | 3 | \r |
e3cf3c20 | 4 | Copyright (c) 2013, Red Hat, Inc.\r |
61e0f079 | 5 | Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 6 | This program and the accompanying materials\r |
dc361cc5 | 7 | are licensed and made available under the terms and conditions of the BSD License\r |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
dc361cc5 | 14 | **/\r |
15 | \r | |
16 | \r | |
17 | #include "PxeBcImpl.h"\r | |
18 | \r | |
19 | //\r | |
20 | // This is a map from the interested DHCP4 option tags' index to the tag value.\r | |
21 | //\r | |
22 | UINT8 mInterestedDhcp4Tags[PXEBC_DHCP4_TAG_INDEX_MAX] = {\r | |
ac6c3d90 ZL |
23 | DHCP4_TAG_BOOTFILE_LEN,\r |
24 | DHCP4_TAG_VENDOR,\r | |
25 | DHCP4_TAG_OVERLOAD,\r | |
26 | DHCP4_TAG_MSG_TYPE,\r | |
27 | DHCP4_TAG_SERVER_ID,\r | |
28 | DHCP4_TAG_VENDOR_CLASS_ID,\r | |
29 | DHCP4_TAG_BOOTFILE\r | |
dc361cc5 | 30 | };\r |
31 | \r | |
32 | \r | |
33 | /**\r | |
f737cfb9 | 34 | This function initialize the DHCP4 message instance.\r |
dc361cc5 | 35 | \r |
f737cfb9 | 36 | This function will pad each item of dhcp4 message packet.\r |
e2851998 | 37 | \r |
f737cfb9 | 38 | @param Seed Pointer to the message instance of the DHCP4 packet.\r |
39 | @param Udp4 Pointer to the EFI_UDP4_PROTOCOL instance.\r | |
dc361cc5 | 40 | \r |
dc361cc5 | 41 | **/\r |
42 | VOID\r | |
43 | PxeBcInitSeedPacket (\r | |
44 | IN EFI_DHCP4_PACKET *Seed,\r | |
45 | IN EFI_UDP4_PROTOCOL *Udp4\r | |
46 | )\r | |
47 | {\r | |
48 | EFI_SIMPLE_NETWORK_MODE Mode;\r | |
49 | EFI_DHCP4_HEADER *Header;\r | |
50 | \r | |
51 | Udp4->GetModeData (Udp4, NULL, NULL, NULL, &Mode);\r | |
52 | \r | |
53 | Seed->Size = sizeof (EFI_DHCP4_PACKET);\r | |
54 | Seed->Length = sizeof (Seed->Dhcp4);\r | |
55 | \r | |
56 | Header = &Seed->Dhcp4.Header;\r | |
57 | \r | |
e48e37fc | 58 | ZeroMem (Header, sizeof (EFI_DHCP4_HEADER));\r |
dc361cc5 | 59 | Header->OpCode = PXEBC_DHCP4_OPCODE_REQUEST;\r |
60 | Header->HwType = Mode.IfType;\r | |
61 | Header->HwAddrLen = (UINT8) Mode.HwAddressSize;\r | |
e48e37fc | 62 | CopyMem (Header->ClientHwAddr, &Mode.CurrentAddress, Header->HwAddrLen);\r |
dc361cc5 | 63 | \r |
64 | Seed->Dhcp4.Magik = PXEBC_DHCP4_MAGIC;\r | |
ac6c3d90 | 65 | Seed->Dhcp4.Option[0] = DHCP4_TAG_EOP;\r |
dc361cc5 | 66 | }\r |
67 | \r | |
68 | \r | |
69 | /**\r | |
f737cfb9 | 70 | Copy the DCHP4 packet from srouce to destination.\r |
dc361cc5 | 71 | \r |
471342bb FS |
72 | @param[in] Dst Pointer to the cache buffer for DHCPv4 packet.\r |
73 | @param[in] Src Pointer to the DHCPv4 packet to be cached.\r | |
74 | \r | |
75 | @retval EFI_SUCCESS Packet is copied.\r | |
76 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
dc361cc5 | 77 | \r |
dc361cc5 | 78 | **/\r |
471342bb | 79 | EFI_STATUS\r |
dc361cc5 | 80 | PxeBcCopyEfiDhcp4Packet (\r |
81 | IN EFI_DHCP4_PACKET *Dst,\r | |
82 | IN EFI_DHCP4_PACKET *Src\r | |
83 | )\r | |
84 | {\r | |
471342bb FS |
85 | if (Dst->Size < Src->Length) {\r |
86 | return EFI_BUFFER_TOO_SMALL;\r | |
87 | }\r | |
dc361cc5 | 88 | \r |
e48e37fc | 89 | CopyMem (&Dst->Dhcp4, &Src->Dhcp4, Src->Length);\r |
dc361cc5 | 90 | Dst->Length = Src->Length;\r |
471342bb | 91 | return EFI_SUCCESS;\r |
dc361cc5 | 92 | }\r |
93 | \r | |
94 | \r | |
95 | /**\r | |
f737cfb9 | 96 | Copy the dhcp4 packet to the PxeBc private data and parse the dhcp4 packet.\r |
dc361cc5 | 97 | \r |
f737cfb9 | 98 | @param Private Pointer to PxeBc private data.\r |
99 | @param OfferIndex Index of cached packets as complements of pxe mode data,\r | |
100 | the index is maximum offer number.\r | |
dc361cc5 | 101 | \r |
471342bb FS |
102 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
103 | @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r | |
104 | \r | |
dc361cc5 | 105 | **/\r |
471342bb | 106 | EFI_STATUS\r |
dc361cc5 | 107 | PxeBcCopyProxyOffer (\r |
108 | IN PXEBC_PRIVATE_DATA *Private,\r | |
109 | IN UINT32 OfferIndex\r | |
110 | )\r | |
111 | {\r | |
112 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
113 | EFI_DHCP4_PACKET *Offer;\r | |
471342bb | 114 | EFI_STATUS Status;\r |
dc361cc5 | 115 | \r |
116 | ASSERT (OfferIndex < Private->NumOffers);\r | |
890986ca | 117 | ASSERT (OfferIndex < PXEBC_MAX_OFFER_NUM);\r |
dc361cc5 | 118 | \r |
119 | Mode = Private->PxeBc.Mode;\r | |
120 | Offer = &Private->Dhcp4Offers[OfferIndex].Packet.Offer;\r | |
121 | \r | |
471342bb FS |
122 | Status = PxeBcCopyEfiDhcp4Packet (&Private->ProxyOffer.Packet.Offer, Offer);\r |
123 | if (EFI_ERROR(Status)) {\r | |
124 | return Status;\r | |
125 | }\r | |
e48e37fc | 126 | CopyMem (&Mode->ProxyOffer, &Offer->Dhcp4, Offer->Length);\r |
dc361cc5 | 127 | Mode->ProxyOfferReceived = TRUE;\r |
128 | \r | |
129 | PxeBcParseCachedDhcpPacket (&Private->ProxyOffer);\r | |
471342bb | 130 | return EFI_SUCCESS;\r |
dc361cc5 | 131 | }\r |
132 | \r | |
133 | \r | |
134 | /**\r | |
135 | Parse the cached dhcp packet.\r | |
136 | \r | |
f737cfb9 | 137 | @param CachedPacket Pointer to cached dhcp packet.\r |
dc361cc5 | 138 | \r |
f737cfb9 | 139 | @retval TRUE Succeed to parse and validation.\r |
140 | @retval FALSE Fail to parse or validation.\r | |
dc361cc5 | 141 | \r |
142 | **/\r | |
143 | BOOLEAN\r | |
144 | PxeBcParseCachedDhcpPacket (\r | |
145 | IN PXEBC_CACHED_DHCP4_PACKET *CachedPacket\r | |
146 | )\r | |
147 | {\r | |
148 | EFI_DHCP4_PACKET *Offer;\r | |
149 | EFI_DHCP4_PACKET_OPTION **Options;\r | |
150 | EFI_DHCP4_PACKET_OPTION *Option;\r | |
151 | UINT8 OfferType;\r | |
152 | UINTN Index;\r | |
4546bcbb | 153 | UINT8 *Ptr8;\r |
dc361cc5 | 154 | \r |
155 | CachedPacket->IsPxeOffer = FALSE;\r | |
e48e37fc | 156 | ZeroMem (CachedPacket->Dhcp4Option, sizeof (CachedPacket->Dhcp4Option));\r |
157 | ZeroMem (&CachedPacket->PxeVendorOption, sizeof (CachedPacket->PxeVendorOption));\r | |
dc361cc5 | 158 | \r |
159 | Offer = &CachedPacket->Packet.Offer;\r | |
160 | Options = CachedPacket->Dhcp4Option;\r | |
161 | \r | |
162 | //\r | |
163 | // Parse interested dhcp options and store their pointers in CachedPacket->Dhcp4Option.\r | |
8cb92971 | 164 | // First, try to parse DHCPv4 options from the DHCP optional parameters field.\r |
dc361cc5 | 165 | //\r |
166 | for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {\r | |
167 | Options[Index] = PxeBcParseExtendOptions (\r | |
8cb92971 FS |
168 | Offer->Dhcp4.Option,\r |
169 | GET_OPTION_BUFFER_LEN (Offer),\r | |
170 | mInterestedDhcp4Tags[Index]\r | |
171 | );\r | |
172 | }\r | |
173 | //\r | |
174 | // Second, Check if bootfilename and serverhostname is overloaded to carry DHCP options refers to rfc-2132. \r | |
175 | // If yes, try to parse options from the BootFileName field, then ServerName field.\r | |
176 | //\r | |
177 | Option = Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD];\r | |
178 | if (Option != NULL) {\r | |
179 | if ((Option->Data[0] & PXEBC_DHCP4_OVERLOAD_FILE) != 0) {\r | |
180 | for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {\r | |
181 | if (Options[Index] == NULL) {\r | |
182 | Options[Index] = PxeBcParseExtendOptions (\r | |
183 | (UINT8 *) Offer->Dhcp4.Header.BootFileName,\r | |
184 | sizeof (Offer->Dhcp4.Header.BootFileName),\r | |
185 | mInterestedDhcp4Tags[Index]\r | |
186 | );\r | |
187 | }\r | |
188 | }\r | |
189 | }\r | |
190 | if ((Option->Data[0] & PXEBC_DHCP4_OVERLOAD_SERVER_NAME) != 0) {\r | |
191 | for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {\r | |
192 | if (Options[Index] == NULL) {\r | |
193 | Options[Index] = PxeBcParseExtendOptions (\r | |
194 | (UINT8 *) Offer->Dhcp4.Header.ServerName,\r | |
195 | sizeof (Offer->Dhcp4.Header.ServerName),\r | |
196 | mInterestedDhcp4Tags[Index]\r | |
197 | );\r | |
198 | }\r | |
199 | }\r | |
200 | }\r | |
dc361cc5 | 201 | }\r |
202 | \r | |
203 | //\r | |
204 | // Check whether is an offer with PXEClient or not.\r | |
205 | //\r | |
206 | Option = Options[PXEBC_DHCP4_TAG_INDEX_CLASS_ID];\r | |
207 | if ((Option != NULL) && (Option->Length >= 9) &&\r | |
e48e37fc | 208 | (CompareMem (Option->Data, DEFAULT_CLASS_ID_DATA, 9) == 0)) {\r |
dc361cc5 | 209 | \r |
210 | CachedPacket->IsPxeOffer = TRUE;\r | |
211 | }\r | |
212 | \r | |
213 | //\r | |
214 | // Parse pxe vendor options and store their content/pointers in CachedPacket->PxeVendorOption.\r | |
215 | //\r | |
216 | Option = Options[PXEBC_DHCP4_TAG_INDEX_VENDOR];\r | |
217 | if (CachedPacket->IsPxeOffer && (Option != NULL)) {\r | |
218 | \r | |
219 | if (!PxeBcParseVendorOptions (Option, &CachedPacket->PxeVendorOption)) {\r | |
220 | return FALSE;\r | |
221 | }\r | |
222 | }\r | |
223 | \r | |
8cb92971 | 224 | \r |
dc361cc5 | 225 | //\r |
8cb92971 FS |
226 | // Parse PXE boot file name:\r |
227 | // According to PXE spec, boot file name should be read from DHCP option 67 (bootfile name) if present.\r | |
228 | // Otherwise, read from boot file field in DHCP header.\r | |
dc361cc5 | 229 | //\r |
8cb92971 | 230 | if (Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {\r |
4546bcbb | 231 | //\r |
232 | // RFC 2132, Section 9.5 does not strictly state Bootfile name (option 67) is null \r | |
233 | // terminated string. So force to append null terminated character at the end of string.\r | |
234 | //\r | |
8cb92971 FS |
235 | Ptr8 = (UINT8*)&Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Data[0];\r |
236 | Ptr8 += Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Length;\r | |
237 | if (*(Ptr8 - 1) != '\0') {\r | |
238 | *Ptr8 = '\0';\r | |
a4ac31e0 | 239 | }\r |
8cb92971 | 240 | } else if (Offer->Dhcp4.Header.BootFileName[0] != 0) {\r |
dc361cc5 | 241 | //\r |
242 | // If the bootfile is not present and bootfilename is present in dhcp packet, just parse it.\r | |
75dce340 | 243 | // And do not count dhcp option header, or else will destroy the serverhostname.\r |
dc361cc5 | 244 | //\r |
61e0f079 HG |
245 | // Make sure "BootFileName" is not overloaded.\r |
246 | //\r | |
247 | if (Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD] == NULL ||\r | |
248 | (Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD]->Data[0] & PXEBC_DHCP4_OVERLOAD_FILE) == 0) {\r | |
249 | Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] = (EFI_DHCP4_PACKET_OPTION *) (&Offer->Dhcp4.Header.BootFileName[0] -\r | |
f3f2e05d | 250 | OFFSET_OF (EFI_DHCP4_PACKET_OPTION, Data[0]));\r |
61e0f079 | 251 | }\r |
dc361cc5 | 252 | }\r |
253 | \r | |
254 | //\r | |
255 | // Determine offer type of the dhcp packet.\r | |
256 | //\r | |
257 | Option = Options[PXEBC_DHCP4_TAG_INDEX_MSG_TYPE];\r | |
258 | if ((Option == NULL) || (Option->Data[0] == 0)) {\r | |
259 | //\r | |
260 | // It's a bootp offer\r | |
261 | //\r | |
262 | Option = CachedPacket->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE];\r | |
263 | if (Option == NULL) {\r | |
264 | //\r | |
265 | // bootp offer without bootfilename, discard it.\r | |
266 | //\r | |
267 | return FALSE;\r | |
268 | }\r | |
269 | \r | |
270 | OfferType = DHCP4_PACKET_TYPE_BOOTP;\r | |
271 | \r | |
272 | } else {\r | |
273 | \r | |
274 | if (IS_VALID_DISCOVER_VENDOR_OPTION (CachedPacket->PxeVendorOption.BitMap)) {\r | |
275 | //\r | |
276 | // It's a pxe10 offer with PXEClient and discover vendor option.\r | |
277 | //\r | |
278 | OfferType = DHCP4_PACKET_TYPE_PXE10;\r | |
279 | } else if (IS_VALID_MTFTP_VENDOR_OPTION (CachedPacket->PxeVendorOption.BitMap)) {\r | |
280 | //\r | |
281 | // It's a wfm11a offer with PXEClient and mtftp vendor option, and\r | |
282 | // return false since mtftp not supported currently.\r | |
283 | //\r | |
284 | return FALSE;\r | |
dc361cc5 | 285 | } else {\r |
286 | //\r | |
287 | // If the binl offer with only PXEClient.\r | |
288 | //\r | |
289 | OfferType = (UINT8) ((CachedPacket->IsPxeOffer) ? DHCP4_PACKET_TYPE_BINL : DHCP4_PACKET_TYPE_DHCP_ONLY);\r | |
290 | }\r | |
291 | }\r | |
292 | \r | |
293 | CachedPacket->OfferType = OfferType;\r | |
294 | \r | |
295 | return TRUE;\r | |
296 | }\r | |
297 | \r | |
298 | \r | |
299 | /**\r | |
f737cfb9 | 300 | Offer dhcp service with a BINL dhcp offer.\r |
dc361cc5 | 301 | \r |
f737cfb9 | 302 | @param Private Pointer to PxeBc private data.\r |
303 | @param Index Index of cached packets as complements of pxe mode data,\r | |
304 | the index is maximum offer number.\r | |
dc361cc5 | 305 | \r |
f737cfb9 | 306 | @retval TRUE Offer the service successfully under priority BINL.\r |
e2851998 | 307 | @retval FALSE Boot Service failed, parse cached dhcp packet failed or this\r |
f737cfb9 | 308 | BINL ack cannot find options set or bootfile name specified.\r |
e2851998 | 309 | \r |
dc361cc5 | 310 | **/\r |
311 | BOOLEAN\r | |
312 | PxeBcTryBinl (\r | |
313 | IN PXEBC_PRIVATE_DATA *Private,\r | |
314 | IN UINT32 Index\r | |
315 | )\r | |
316 | {\r | |
317 | EFI_DHCP4_PACKET *Offer;\r | |
318 | EFI_IP_ADDRESS ServerIp;\r | |
319 | EFI_STATUS Status;\r | |
320 | PXEBC_CACHED_DHCP4_PACKET *CachedPacket;\r | |
321 | EFI_DHCP4_PACKET *Reply;\r | |
322 | \r | |
894d038a | 323 | ASSERT (Index < PXEBC_MAX_OFFER_NUM);\r |
dc361cc5 | 324 | ASSERT (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL);\r |
325 | \r | |
326 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r | |
319075ff | 327 | \r |
328 | //\r | |
2ce5c88a | 329 | // Use siaddr(next server) in DHCPOFFER packet header, if zero, use option 54(server identifier)\r |
330 | // in DHCPOFFER packet.\r | |
331 | // (It does not comply with PXE Spec, Ver2.1)\r | |
319075ff | 332 | //\r |
2ce5c88a | 333 | if (EFI_IP4_EQUAL (&Offer->Dhcp4.Header.ServerAddr.Addr, &mZeroIp4Addr)) {\r |
e48e37fc | 334 | CopyMem (\r |
dc361cc5 | 335 | &ServerIp.Addr[0],\r |
336 | Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,\r | |
337 | sizeof (EFI_IPv4_ADDRESS)\r | |
338 | );\r | |
339 | } else {\r | |
319075ff | 340 | CopyMem (\r |
e2851998 | 341 | &ServerIp.Addr[0],\r |
342 | &Offer->Dhcp4.Header.ServerAddr,\r | |
319075ff | 343 | sizeof (EFI_IPv4_ADDRESS)\r |
344 | );\r | |
345 | }\r | |
346 | if (ServerIp.Addr[0] == 0) {\r | |
347 | return FALSE;\r | |
dc361cc5 | 348 | }\r |
349 | \r | |
350 | CachedPacket = &Private->ProxyOffer;\r | |
351 | Reply = &CachedPacket->Packet.Offer;\r | |
352 | \r | |
353 | Status = PxeBcDiscvBootService (\r | |
354 | Private,\r | |
355 | 0,\r | |
356 | NULL,\r | |
357 | FALSE,\r | |
358 | &ServerIp,\r | |
359 | 0,\r | |
360 | NULL,\r | |
361 | FALSE,\r | |
362 | Reply\r | |
363 | );\r | |
364 | if (EFI_ERROR (Status)) {\r | |
365 | return FALSE;\r | |
366 | }\r | |
367 | \r | |
368 | if (!PxeBcParseCachedDhcpPacket (CachedPacket)) {\r | |
369 | return FALSE;\r | |
370 | }\r | |
371 | \r | |
372 | if ((CachedPacket->OfferType != DHCP4_PACKET_TYPE_PXE10) &&\r | |
373 | (CachedPacket->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL)) {\r | |
374 | //\r | |
375 | // This BINL ack doesn't have discovery options set or bootfile name\r | |
376 | // specified.\r | |
377 | //\r | |
378 | return FALSE;\r | |
379 | }\r | |
380 | \r | |
381 | Private->PxeBc.Mode->ProxyOfferReceived = TRUE;\r | |
e48e37fc | 382 | CopyMem (&Private->PxeBc.Mode->ProxyOffer, &Reply->Dhcp4, Reply->Length);\r |
dc361cc5 | 383 | \r |
384 | return TRUE;\r | |
385 | }\r | |
386 | \r | |
387 | \r | |
388 | /**\r | |
f737cfb9 | 389 | Offer dhcp service for each proxy with a BINL dhcp offer.\r |
dc361cc5 | 390 | \r |
f737cfb9 | 391 | @param Private Pointer to PxeBc private data\r |
e2851998 | 392 | @param OfferIndex Pointer to the index of cached packets as complements of\r |
f737cfb9 | 393 | pxe mode data, the index is maximum offer number.\r |
dc361cc5 | 394 | \r |
f737cfb9 | 395 | @return If there is no service needed offer return FALSE, otherwise TRUE.\r |
dc361cc5 | 396 | \r |
397 | **/\r | |
398 | BOOLEAN\r | |
399 | PxeBcTryBinlProxy (\r | |
400 | IN PXEBC_PRIVATE_DATA *Private,\r | |
401 | OUT UINT32 *OfferIndex\r | |
402 | )\r | |
403 | {\r | |
404 | UINT32 Index;\r | |
405 | \r | |
406 | for (Index = 0; Index < Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]; Index++) {\r | |
407 | \r | |
408 | *OfferIndex = Private->BinlIndex[Index];\r | |
409 | //\r | |
410 | // Try this BINL proxy offer\r | |
411 | //\r | |
412 | if (PxeBcTryBinl (Private, *OfferIndex)) {\r | |
413 | return TRUE;\r | |
414 | }\r | |
415 | }\r | |
416 | \r | |
417 | return FALSE;\r | |
418 | }\r | |
419 | \r | |
420 | \r | |
421 | /**\r | |
f737cfb9 | 422 | This function is to check the selected proxy offer (include BINL dhcp offer and\r |
423 | DHCP_ONLY offer ) and set the flag and copy the DHCP packets to the Pxe base code\r | |
424 | mode structure.\r | |
dc361cc5 | 425 | \r |
f737cfb9 | 426 | @param Private Pointer to PxeBc private data.\r |
dc361cc5 | 427 | \r |
471342bb FS |
428 | @retval EFI_SUCCESS Operational successful.\r |
429 | @retval EFI_NO_RESPONSE Offer dhcp service failed.\r | |
430 | @retval EFI_BUFFER_TOO_SMALL Failed to copy the packet to Pxe base code mode.\r | |
dc361cc5 | 431 | \r |
432 | **/\r | |
433 | EFI_STATUS\r | |
434 | PxeBcCheckSelectedOffer (\r | |
435 | IN PXEBC_PRIVATE_DATA *Private\r | |
436 | )\r | |
437 | {\r | |
438 | PXEBC_CACHED_DHCP4_PACKET *SelectedOffer;\r | |
439 | EFI_DHCP4_PACKET_OPTION **Options;\r | |
440 | UINT32 Index;\r | |
441 | EFI_DHCP4_PACKET *Offer;\r | |
442 | UINT32 ProxyOfferIndex;\r | |
443 | EFI_STATUS Status;\r | |
444 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
445 | EFI_DHCP4_PACKET *Ack;\r | |
446 | \r | |
447 | ASSERT (Private->SelectedOffer != 0);\r | |
448 | \r | |
449 | Status = EFI_SUCCESS;\r | |
450 | SelectedOffer = &Private->Dhcp4Offers[Private->SelectedOffer - 1];\r | |
451 | Options = SelectedOffer->Dhcp4Option;\r | |
452 | \r | |
453 | if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BINL) {\r | |
454 | //\r | |
455 | // The addresses are acquired from a BINL dhcp offer, try BINL to get\r | |
456 | // the bootfile name\r | |
457 | //\r | |
458 | if (!PxeBcTryBinl (Private, Private->SelectedOffer - 1)) {\r | |
459 | Status = EFI_NO_RESPONSE;\r | |
460 | }\r | |
05c0e3cb | 461 | } else if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) {\r |
dc361cc5 | 462 | //\r |
e2851998 | 463 | // The selected offer to finish the D.O.R.A. is a DHCP only offer, we need\r |
464 | // try proxy offers if there are some, othewise the bootfile name must be\r | |
05c0e3cb | 465 | // set in this DHCP only offer.\r |
dc361cc5 | 466 | //\r |
05c0e3cb | 467 | if (Private->GotProxyOffer) {\r |
dc361cc5 | 468 | //\r |
05c0e3cb | 469 | // Get rid of the compiler warning.\r |
dc361cc5 | 470 | //\r |
05c0e3cb | 471 | ProxyOfferIndex = 0;\r |
472 | if (Private->SortOffers) {\r | |
dc361cc5 | 473 | //\r |
05c0e3cb | 474 | // The offers are sorted before selecting, the proxy offer type must be\r |
475 | // already determined.\r | |
dc361cc5 | 476 | //\r |
05c0e3cb | 477 | ASSERT (Private->ProxyIndex[Private->ProxyOfferType] > 0);\r |
478 | \r | |
479 | if (Private->ProxyOfferType == DHCP4_PACKET_TYPE_BINL) {\r | |
480 | //\r | |
481 | // We buffer all received BINL proxy offers, try them all one by one\r | |
482 | //\r | |
483 | if (!PxeBcTryBinlProxy (Private, &ProxyOfferIndex)) {\r | |
484 | Status = EFI_NO_RESPONSE;\r | |
485 | }\r | |
486 | } else {\r | |
487 | //\r | |
488 | // For other types, only one proxy offer is buffered.\r | |
489 | //\r | |
490 | ProxyOfferIndex = Private->ProxyIndex[Private->ProxyOfferType] - 1;\r | |
dc361cc5 | 491 | }\r |
492 | } else {\r | |
493 | //\r | |
e2851998 | 494 | // The proxy offer type is not determined, choose proxy offer in the\r |
05c0e3cb | 495 | // received order.\r |
dc361cc5 | 496 | //\r |
05c0e3cb | 497 | Status = EFI_NO_RESPONSE;\r |
dc361cc5 | 498 | \r |
523f48e7 | 499 | ASSERT (Private->NumOffers < PXEBC_MAX_OFFER_NUM);\r |
05c0e3cb | 500 | for (Index = 0; Index < Private->NumOffers; Index++) {\r |
dc361cc5 | 501 | \r |
05c0e3cb | 502 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r |
503 | if (!IS_PROXY_DHCP_OFFER (Offer)) {\r | |
dc361cc5 | 504 | //\r |
05c0e3cb | 505 | // Skip non proxy dhcp offers.\r |
dc361cc5 | 506 | //\r |
507 | continue;\r | |
508 | }\r | |
dc361cc5 | 509 | \r |
05c0e3cb | 510 | if (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL) {\r |
511 | //\r | |
512 | // Try BINL\r | |
513 | //\r | |
514 | if (!PxeBcTryBinl (Private, Index)) {\r | |
515 | //\r | |
516 | // Failed, skip to the next offer\r | |
517 | //\r | |
518 | continue;\r | |
519 | }\r | |
520 | }\r | |
521 | \r | |
522 | Private->ProxyOfferType = Private->Dhcp4Offers[Index].OfferType;\r | |
523 | ProxyOfferIndex = Index;\r | |
524 | Status = EFI_SUCCESS;\r | |
525 | break;\r | |
526 | }\r | |
dc361cc5 | 527 | }\r |
dc361cc5 | 528 | \r |
05c0e3cb | 529 | if (!EFI_ERROR (Status) && (Private->ProxyOfferType != DHCP4_PACKET_TYPE_BINL)) {\r |
530 | //\r | |
531 | // Copy the proxy offer to Mode and set the flag\r | |
532 | //\r | |
471342bb | 533 | Status = PxeBcCopyProxyOffer (Private, ProxyOfferIndex);\r |
05c0e3cb | 534 | }\r |
535 | } else {\r | |
dc361cc5 | 536 | //\r |
05c0e3cb | 537 | // No proxy offer is received, the bootfile name MUST be set.\r |
dc361cc5 | 538 | //\r |
05c0e3cb | 539 | ASSERT (Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);\r |
dc361cc5 | 540 | }\r |
541 | }\r | |
542 | \r | |
543 | if (!EFI_ERROR (Status)) {\r | |
544 | //\r | |
545 | // Everything is OK, set the flag and copy the DHCP packets.\r | |
546 | //\r | |
547 | Mode = Private->PxeBc.Mode;\r | |
548 | Offer = &SelectedOffer->Packet.Offer;\r | |
549 | \r | |
550 | //\r | |
551 | // The discover packet is already copied, just set flag here.\r | |
552 | //\r | |
553 | Mode->DhcpDiscoverValid = TRUE;\r | |
554 | \r | |
555 | Ack = &Private->Dhcp4Ack.Packet.Ack;\r | |
556 | if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BOOTP) {\r | |
557 | //\r | |
558 | // Other type of ACK is already cached. Bootp is special that we should\r | |
559 | // use the bootp reply as the ACK and put it into the DHCP_ONLY buffer.\r | |
560 | //\r | |
471342bb | 561 | Status = PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Offer);\r |
dc361cc5 | 562 | }\r |
563 | \r | |
564 | PxeBcParseCachedDhcpPacket (&Private->Dhcp4Ack);\r | |
565 | \r | |
566 | Mode->DhcpAckReceived = TRUE;\r | |
567 | \r | |
568 | //\r | |
569 | // Copy the dhcp ack.\r | |
570 | //\r | |
e48e37fc | 571 | CopyMem (&Mode->DhcpAck, &Ack->Dhcp4, Ack->Length);\r |
dc361cc5 | 572 | }\r |
573 | \r | |
574 | return Status;\r | |
575 | }\r | |
576 | \r | |
577 | \r | |
578 | /**\r | |
f737cfb9 | 579 | Cache the Dhcp4 packet offer, Parse and validate each option of the packet.\r |
dc361cc5 | 580 | \r |
f737cfb9 | 581 | @param Private Pointer to PxeBc private data.\r |
582 | @param RcvdOffer Pointer to the received Dhcp proxy offer packet.\r | |
dc361cc5 | 583 | \r |
471342bb FS |
584 | @retval EFI_SUCCESS Cache and parse the packet successfully.\r |
585 | @retval Others Operation failed.\r | |
586 | \r | |
dc361cc5 | 587 | **/\r |
471342bb | 588 | EFI_STATUS\r |
dc361cc5 | 589 | PxeBcCacheDhcpOffer (\r |
590 | IN PXEBC_PRIVATE_DATA *Private,\r | |
591 | IN EFI_DHCP4_PACKET *RcvdOffer\r | |
592 | )\r | |
593 | {\r | |
594 | PXEBC_CACHED_DHCP4_PACKET *CachedOffer;\r | |
595 | EFI_DHCP4_PACKET *Offer;\r | |
596 | UINT8 OfferType;\r | |
471342bb | 597 | EFI_STATUS Status;\r |
dc361cc5 | 598 | \r |
599 | CachedOffer = &Private->Dhcp4Offers[Private->NumOffers];\r | |
600 | Offer = &CachedOffer->Packet.Offer;\r | |
601 | \r | |
602 | //\r | |
603 | // Cache the orignal dhcp packet\r | |
604 | //\r | |
471342bb FS |
605 | Status = PxeBcCopyEfiDhcp4Packet (Offer, RcvdOffer);\r |
606 | if (EFI_ERROR(Status)) {\r | |
607 | return Status;\r | |
608 | }\r | |
dc361cc5 | 609 | \r |
610 | //\r | |
611 | // Parse and validate the options (including dhcp option and vendor option)\r | |
612 | //\r | |
613 | if (!PxeBcParseCachedDhcpPacket (CachedOffer)) {\r | |
471342bb | 614 | return EFI_ABORTED;\r |
dc361cc5 | 615 | }\r |
616 | \r | |
617 | OfferType = CachedOffer->OfferType;\r | |
379db4ac | 618 | if (OfferType >= DHCP4_PACKET_TYPE_MAX) {\r |
471342bb | 619 | return EFI_ABORTED;\r |
379db4ac | 620 | }\r |
dc361cc5 | 621 | \r |
622 | if (OfferType == DHCP4_PACKET_TYPE_BOOTP) {\r | |
623 | \r | |
624 | if (Private->BootpIndex != 0) {\r | |
625 | //\r | |
626 | // Only cache the first bootp offer, discard others.\r | |
627 | //\r | |
471342bb | 628 | return EFI_ABORTED;\r |
dc361cc5 | 629 | } else {\r |
630 | //\r | |
631 | // Take as a dhcp only offer, but record index specifically.\r | |
632 | //\r | |
633 | Private->BootpIndex = Private->NumOffers + 1;\r | |
634 | }\r | |
635 | } else {\r | |
636 | \r | |
637 | if (IS_PROXY_DHCP_OFFER (Offer)) {\r | |
638 | //\r | |
639 | // It's a proxy dhcp offer with no your address, including pxe10, wfm11a or binl offer.\r | |
640 | //\r | |
05c0e3cb | 641 | Private->GotProxyOffer = TRUE;\r |
642 | \r | |
dc361cc5 | 643 | if (OfferType == DHCP4_PACKET_TYPE_BINL) {\r |
644 | //\r | |
645 | // Cache all binl offers.\r | |
646 | //\r | |
647 | Private->BinlIndex[Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]] = Private->NumOffers;\r | |
648 | Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]++;\r | |
649 | } else if (Private->ProxyIndex[OfferType] != 0) {\r | |
650 | //\r | |
651 | // Only cache the first pxe10/wfm11a offers each, discard the others.\r | |
652 | //\r | |
471342bb | 653 | return EFI_ABORTED;\r |
dc361cc5 | 654 | } else {\r |
655 | //\r | |
656 | // Record index of the proxy dhcp offer with type other than binl.\r | |
657 | //\r | |
658 | Private->ProxyIndex[OfferType] = Private->NumOffers + 1;\r | |
659 | }\r | |
660 | } else {\r | |
661 | //\r | |
662 | // It's a dhcp offer with your address.\r | |
663 | //\r | |
894d038a | 664 | ASSERT (Private->ServerCount[OfferType] < PXEBC_MAX_OFFER_NUM);\r |
dc361cc5 | 665 | Private->OfferIndex[OfferType][Private->ServerCount[OfferType]] = Private->NumOffers;\r |
666 | Private->ServerCount[OfferType]++;\r | |
667 | }\r | |
668 | }\r | |
669 | \r | |
670 | //\r | |
671 | // Count the accepted offers.\r | |
672 | //\r | |
673 | Private->NumOffers++;\r | |
471342bb FS |
674 | \r |
675 | return EFI_SUCCESS;\r | |
dc361cc5 | 676 | }\r |
677 | \r | |
14e84fd8 ZL |
678 | /**\r |
679 | Switch the Ip4 policy to static.\r | |
680 | \r | |
681 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r | |
682 | \r | |
683 | @retval EFI_SUCCESS The policy is already configured to static.\r | |
684 | @retval Others Other error as indicated..\r | |
685 | \r | |
686 | **/\r | |
687 | EFI_STATUS\r | |
688 | PxeBcSetIp4Policy ( \r | |
689 | IN PXEBC_PRIVATE_DATA *Private\r | |
690 | )\r | |
691 | {\r | |
692 | EFI_STATUS Status;\r | |
693 | EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;\r | |
694 | EFI_IP4_CONFIG2_POLICY Policy;\r | |
695 | UINTN DataSize;\r | |
696 | \r | |
697 | Ip4Config2 = Private->Ip4Config2;\r | |
698 | DataSize = sizeof (EFI_IP4_CONFIG2_POLICY);\r | |
699 | Status = Ip4Config2->GetData (\r | |
700 | Ip4Config2,\r | |
701 | Ip4Config2DataTypePolicy,\r | |
702 | &DataSize,\r | |
703 | &Policy\r | |
704 | );\r | |
705 | if (EFI_ERROR (Status)) {\r | |
706 | return Status;\r | |
707 | }\r | |
708 | \r | |
709 | if (Policy != Ip4Config2PolicyStatic) {\r | |
710 | Policy = Ip4Config2PolicyStatic;\r | |
711 | Status= Ip4Config2->SetData (\r | |
712 | Ip4Config2,\r | |
713 | Ip4Config2DataTypePolicy,\r | |
714 | sizeof (EFI_IP4_CONFIG2_POLICY),\r | |
715 | &Policy\r | |
716 | );\r | |
717 | if (EFI_ERROR (Status)) {\r | |
718 | return Status;\r | |
719 | } \r | |
720 | }\r | |
721 | \r | |
722 | return EFI_SUCCESS;\r | |
723 | }\r | |
724 | \r | |
dc361cc5 | 725 | \r |
726 | /**\r | |
f737cfb9 | 727 | Select the specified proxy offer, such as BINL, DHCP_ONLY and so on.\r |
728 | If the proxy does not exist, try offers with bootfile.\r | |
e2851998 | 729 | \r |
f737cfb9 | 730 | @param Private Pointer to PxeBc private data.\r |
dc361cc5 | 731 | \r |
dc361cc5 | 732 | **/\r |
733 | VOID\r | |
734 | PxeBcSelectOffer (\r | |
735 | IN PXEBC_PRIVATE_DATA *Private\r | |
736 | )\r | |
737 | {\r | |
738 | UINT32 Index;\r | |
739 | UINT32 OfferIndex;\r | |
740 | EFI_DHCP4_PACKET *Offer;\r | |
dc361cc5 | 741 | \r |
742 | Private->SelectedOffer = 0;\r | |
743 | \r | |
744 | if (Private->SortOffers) {\r | |
745 | //\r | |
746 | // Select offer according to the priority\r | |
747 | //\r | |
748 | if (Private->ServerCount[DHCP4_PACKET_TYPE_PXE10] > 0) {\r | |
749 | //\r | |
750 | // DHCP with PXE10\r | |
751 | //\r | |
752 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_PXE10][0] + 1;\r | |
753 | \r | |
754 | } else if (Private->ServerCount[DHCP4_PACKET_TYPE_WFM11A] > 0) {\r | |
755 | //\r | |
756 | // DHCP with WfM\r | |
757 | //\r | |
758 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_WFM11A][0] + 1;\r | |
759 | \r | |
760 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_PXE10] > 0) &&\r | |
761 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r | |
762 | ) {\r | |
763 | //\r | |
764 | // DHCP only and proxy DHCP with PXE10\r | |
765 | //\r | |
766 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r | |
767 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_PXE10;\r | |
768 | \r | |
769 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_WFM11A] > 0) &&\r | |
770 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r | |
771 | ) {\r | |
772 | //\r | |
773 | // DHCP only and proxy DHCP with WfM\r | |
774 | //\r | |
775 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r | |
776 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_WFM11A;\r | |
777 | \r | |
778 | } else if (Private->ServerCount[DHCP4_PACKET_TYPE_BINL] > 0) {\r | |
779 | //\r | |
780 | // DHCP with BINL\r | |
781 | //\r | |
782 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_BINL][0] + 1;\r | |
783 | \r | |
784 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL] > 0) &&\r | |
785 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r | |
786 | ) {\r | |
787 | //\r | |
788 | // DHCP only and proxy DHCP with BINL\r | |
789 | //\r | |
790 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r | |
791 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_BINL;\r | |
792 | \r | |
793 | } else {\r | |
794 | //\r | |
795 | // Try offers with bootfile\r | |
796 | //\r | |
797 | for (Index = 0; Index < Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY]; Index++) {\r | |
798 | //\r | |
799 | // Select the first DHCP only offer with bootfile\r | |
800 | //\r | |
801 | OfferIndex = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][Index];\r | |
802 | if (Private->Dhcp4Offers[OfferIndex].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {\r | |
803 | Private->SelectedOffer = OfferIndex + 1;\r | |
804 | break;\r | |
805 | }\r | |
806 | }\r | |
807 | \r | |
808 | if (Private->SelectedOffer == 0) {\r | |
809 | //\r | |
810 | // Select the Bootp reply with bootfile if any\r | |
811 | //\r | |
812 | Private->SelectedOffer = Private->BootpIndex;\r | |
813 | }\r | |
814 | }\r | |
815 | } else {\r | |
816 | //\r | |
817 | // Try the offers in the received order.\r | |
818 | //\r | |
dc361cc5 | 819 | for (Index = 0; Index < Private->NumOffers; Index++) {\r |
820 | \r | |
821 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r | |
822 | \r | |
823 | if (IS_PROXY_DHCP_OFFER (Offer)) {\r | |
824 | //\r | |
825 | // Skip proxy offers\r | |
826 | //\r | |
827 | continue;\r | |
828 | }\r | |
829 | \r | |
830 | if ((Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) &&\r | |
05c0e3cb | 831 | ((!Private->GotProxyOffer) && (Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL))) {\r |
dc361cc5 | 832 | //\r |
833 | // DHCP only offer but no proxy offer received and no bootfile option in this offer\r | |
834 | //\r | |
835 | continue;\r | |
836 | }\r | |
837 | \r | |
838 | Private->SelectedOffer = Index + 1;\r | |
839 | break;\r | |
840 | }\r | |
841 | }\r | |
842 | }\r | |
843 | \r | |
844 | \r | |
845 | /**\r | |
f737cfb9 | 846 | Callback routine.\r |
e2851998 | 847 | \r |
f737cfb9 | 848 | EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver\r |
849 | to intercept events that occurred in the configuration process. This structure\r | |
850 | provides advanced control of each state transition of the DHCP process. The\r | |
851 | returned status code determines the behavior of the EFI DHCPv4 Protocol driver.\r | |
852 | There are three possible returned values, which are described in the following\r | |
853 | table.\r | |
854 | \r | |
855 | @param This Pointer to the EFI DHCPv4 Protocol instance that is used to\r | |
856 | configure this callback function.\r | |
857 | @param Context Pointer to the context that is initialized by\r | |
858 | EFI_DHCP4_PROTOCOL.Configure().\r | |
859 | @param CurrentState The current operational state of the EFI DHCPv4 Protocol\r | |
860 | driver.\r | |
861 | @param Dhcp4Event The event that occurs in the current state, which usually means a\r | |
862 | state transition.\r | |
863 | @param Packet The DHCP packet that is going to be sent or already received.\r | |
864 | @param NewPacket The packet that is used to replace the above Packet.\r | |
865 | \r | |
866 | @retval EFI_SUCCESS Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.\r | |
867 | @retval EFI_NOT_READY Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol\r | |
868 | driver will continue to wait for more DHCPOFFER packets until the retry\r | |
869 | timeout expires.\r | |
870 | @retval EFI_ABORTED Tells the EFI DHCPv4 Protocol driver to abort the current process and\r | |
871 | return to the Dhcp4Init or Dhcp4InitReboot state.\r | |
dc361cc5 | 872 | \r |
873 | **/\r | |
874 | EFI_STATUS\r | |
6d3ea23f | 875 | EFIAPI\r |
dc361cc5 | 876 | PxeBcDhcpCallBack (\r |
877 | IN EFI_DHCP4_PROTOCOL * This,\r | |
878 | IN VOID *Context,\r | |
879 | IN EFI_DHCP4_STATE CurrentState,\r | |
880 | IN EFI_DHCP4_EVENT Dhcp4Event,\r | |
881 | IN EFI_DHCP4_PACKET * Packet OPTIONAL,\r | |
882 | OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL\r | |
883 | )\r | |
884 | {\r | |
885 | PXEBC_PRIVATE_DATA *Private;\r | |
886 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
887 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r | |
888 | EFI_DHCP4_PACKET_OPTION *MaxMsgSize;\r | |
889 | UINT16 Value;\r | |
890 | EFI_STATUS Status;\r | |
891 | BOOLEAN Received;\r | |
982a9eae | 892 | EFI_DHCP4_HEADER *DhcpHeader;\r |
dc361cc5 | 893 | \r |
894 | if ((Dhcp4Event != Dhcp4RcvdOffer) &&\r | |
895 | (Dhcp4Event != Dhcp4SelectOffer) &&\r | |
896 | (Dhcp4Event != Dhcp4SendDiscover) &&\r | |
982a9eae | 897 | (Dhcp4Event != Dhcp4RcvdAck) &&\r |
898 | (Dhcp4Event != Dhcp4SendRequest)) {\r | |
dc361cc5 | 899 | return EFI_SUCCESS;\r |
900 | }\r | |
901 | \r | |
902 | Private = (PXEBC_PRIVATE_DATA *) Context;\r | |
903 | Mode = Private->PxeBc.Mode;\r | |
904 | Callback = Private->PxeBcCallback;\r | |
905 | \r | |
906 | //\r | |
907 | // Override the Maximum DHCP Message Size.\r | |
908 | //\r | |
909 | MaxMsgSize = PxeBcParseExtendOptions (\r | |
910 | Packet->Dhcp4.Option,\r | |
911 | GET_OPTION_BUFFER_LEN (Packet),\r | |
ac6c3d90 | 912 | DHCP4_TAG_MAXMSG\r |
dc361cc5 | 913 | );\r |
914 | if (MaxMsgSize != NULL) {\r | |
915 | Value = HTONS (PXEBC_DHCP4_MAX_PACKET_SIZE);\r | |
e48e37fc | 916 | CopyMem (MaxMsgSize->Data, &Value, sizeof (Value));\r |
dc361cc5 | 917 | }\r |
918 | \r | |
919 | if ((Dhcp4Event != Dhcp4SelectOffer) && (Callback != NULL)) {\r | |
920 | Received = (BOOLEAN) ((Dhcp4Event == Dhcp4RcvdOffer) || (Dhcp4Event == Dhcp4RcvdAck));\r | |
921 | Status = Callback->Callback (\r | |
922 | Callback,\r | |
923 | Private->Function,\r | |
924 | Received,\r | |
925 | Packet->Length,\r | |
926 | (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp4\r | |
927 | );\r | |
928 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r | |
929 | return EFI_ABORTED;\r | |
930 | }\r | |
931 | }\r | |
932 | \r | |
933 | Status = EFI_SUCCESS;\r | |
934 | \r | |
935 | switch (Dhcp4Event) {\r | |
936 | \r | |
937 | case Dhcp4SendDiscover:\r | |
982a9eae | 938 | case Dhcp4SendRequest:\r |
4f6b33b4 FS |
939 | if (Packet->Length > PXEBC_DHCP4_MAX_PACKET_SIZE) {\r |
940 | //\r | |
941 | // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r | |
942 | //\r | |
943 | Status = EFI_ABORTED;\r | |
944 | break;\r | |
945 | }\r | |
946 | \r | |
982a9eae | 947 | if (Mode->SendGUID) {\r |
948 | //\r | |
949 | // send the system GUID instead of the MAC address as the hardware address\r | |
950 | // in the DHCP packet header.\r | |
951 | //\r | |
952 | DhcpHeader = &Packet->Dhcp4.Header;\r | |
953 | \r | |
57b301b5 | 954 | if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) DhcpHeader->ClientHwAddr))) {\r |
982a9eae | 955 | //\r |
956 | // GUID not yet set - send all 0xff's to show programable (via SetVariable)\r | |
957 | // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);\r | |
958 | // GUID not yet set - send all 0's to show not programable\r | |
959 | //\r | |
960 | ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));\r | |
961 | }\r | |
962 | \r | |
c9325700 | 963 | DhcpHeader->HwAddrLen = (UINT8) sizeof (EFI_GUID);\r |
982a9eae | 964 | }\r |
965 | \r | |
966 | if (Dhcp4Event == Dhcp4SendDiscover) {\r | |
967 | //\r | |
968 | // Cache the dhcp discover packet, of which some information will be used later.\r | |
969 | //\r | |
970 | CopyMem (Mode->DhcpDiscover.Raw, &Packet->Dhcp4, Packet->Length);\r | |
971 | }\r | |
dc361cc5 | 972 | \r |
973 | break;\r | |
974 | \r | |
975 | case Dhcp4RcvdOffer:\r | |
976 | Status = EFI_NOT_READY;\r | |
4f6b33b4 FS |
977 | if (Packet->Length > PXEBC_DHCP4_MAX_PACKET_SIZE) {\r |
978 | //\r | |
979 | // Ignore the incoming Offers which exceed the maximum length.\r | |
980 | //\r | |
981 | break;\r | |
982 | }\r | |
983 | \r | |
dc361cc5 | 984 | if (Private->NumOffers < PXEBC_MAX_OFFER_NUM) {\r |
985 | //\r | |
986 | // Cache the dhcp offers in Private->Dhcp4Offers[]\r | |
471342bb | 987 | // If error happens, just ignore this packet and continue to wait more offer.\r |
dc361cc5 | 988 | //\r |
989 | PxeBcCacheDhcpOffer (Private, Packet);\r | |
990 | }\r | |
991 | \r | |
992 | break;\r | |
993 | \r | |
994 | case Dhcp4SelectOffer:\r | |
995 | //\r | |
996 | // Select an offer, if succeeded, Private->SelectedOffer points to\r | |
997 | // the index of the selected one.\r | |
998 | //\r | |
999 | PxeBcSelectOffer (Private);\r | |
1000 | \r | |
1001 | if (Private->SelectedOffer == 0) {\r | |
1002 | Status = EFI_ABORTED;\r | |
1003 | } else {\r | |
1004 | *NewPacket = &Private->Dhcp4Offers[Private->SelectedOffer - 1].Packet.Offer;\r | |
1005 | }\r | |
1006 | \r | |
1007 | break;\r | |
1008 | \r | |
1009 | case Dhcp4RcvdAck:\r | |
1010 | //\r | |
1011 | // Cache Ack\r | |
1012 | //\r | |
1013 | ASSERT (Private->SelectedOffer != 0);\r | |
1014 | \r | |
471342bb FS |
1015 | Status = PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Packet);\r |
1016 | if (EFI_ERROR (Status)) {\r | |
1017 | return EFI_ABORTED;\r | |
1018 | }\r | |
dc361cc5 | 1019 | break;\r |
12f3a142 | 1020 | \r |
1021 | default:\r | |
1022 | break;\r | |
dc361cc5 | 1023 | }\r |
1024 | \r | |
1025 | return Status;\r | |
1026 | }\r | |
1027 | \r | |
1028 | \r | |
1029 | /**\r | |
f737cfb9 | 1030 | Initialize the DHCP options and build the option list.\r |
dc361cc5 | 1031 | \r |
f737cfb9 | 1032 | @param Private Pointer to PxeBc private data.\r |
1033 | @param OptList Pointer to a DHCP option list.\r | |
e2851998 | 1034 | \r |
1035 | @param IsDhcpDiscover Discover dhcp option or not.\r | |
dc361cc5 | 1036 | \r |
f737cfb9 | 1037 | @return The index item number of the option list.\r |
dc361cc5 | 1038 | \r |
1039 | **/\r | |
1040 | UINT32\r | |
1041 | PxeBcBuildDhcpOptions (\r | |
1042 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1043 | IN EFI_DHCP4_PACKET_OPTION **OptList,\r | |
1044 | IN BOOLEAN IsDhcpDiscover\r | |
1045 | )\r | |
1046 | {\r | |
1047 | UINT32 Index;\r | |
1048 | PXEBC_DHCP4_OPTION_ENTRY OptEnt;\r | |
1049 | UINT16 Value;\r | |
dc361cc5 | 1050 | \r |
1051 | Index = 0;\r | |
1052 | OptList[0] = (EFI_DHCP4_PACKET_OPTION *) Private->OptionBuffer;\r | |
1053 | \r | |
1054 | if (!IsDhcpDiscover) {\r | |
1055 | //\r | |
1056 | // Append message type.\r | |
1057 | //\r | |
ac6c3d90 | 1058 | OptList[Index]->OpCode = DHCP4_TAG_MSG_TYPE;\r |
dc361cc5 | 1059 | OptList[Index]->Length = 1;\r |
1060 | OptEnt.Mesg = (PXEBC_DHCP4_OPTION_MESG *) OptList[Index]->Data;\r | |
1061 | OptEnt.Mesg->Type = PXEBC_DHCP4_MSG_TYPE_REQUEST;\r | |
1062 | Index++;\r | |
1063 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1064 | \r | |
1065 | //\r | |
1066 | // Append max message size.\r | |
1067 | //\r | |
ac6c3d90 | 1068 | OptList[Index]->OpCode = DHCP4_TAG_MAXMSG;\r |
c9325700 | 1069 | OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE);\r |
dc361cc5 | 1070 | OptEnt.MaxMesgSize = (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *) OptList[Index]->Data;\r |
1071 | Value = NTOHS (PXEBC_DHCP4_MAX_PACKET_SIZE);\r | |
e48e37fc | 1072 | CopyMem (&OptEnt.MaxMesgSize->Size, &Value, sizeof (UINT16));\r |
dc361cc5 | 1073 | Index++;\r |
1074 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1075 | }\r | |
1076 | //\r | |
1077 | // Parameter request list option.\r | |
1078 | //\r | |
ac6c3d90 | 1079 | OptList[Index]->OpCode = DHCP4_TAG_PARA_LIST;\r |
dc361cc5 | 1080 | OptList[Index]->Length = 35;\r |
1081 | OptEnt.Para = (PXEBC_DHCP4_OPTION_PARA *) OptList[Index]->Data;\r | |
ac6c3d90 ZL |
1082 | OptEnt.Para->ParaList[0] = DHCP4_TAG_NETMASK;\r |
1083 | OptEnt.Para->ParaList[1] = DHCP4_TAG_TIME_OFFSET;\r | |
1084 | OptEnt.Para->ParaList[2] = DHCP4_TAG_ROUTER;\r | |
1085 | OptEnt.Para->ParaList[3] = DHCP4_TAG_TIME_SERVER;\r | |
1086 | OptEnt.Para->ParaList[4] = DHCP4_TAG_NAME_SERVER;\r | |
1087 | OptEnt.Para->ParaList[5] = DHCP4_TAG_DNS_SERVER;\r | |
1088 | OptEnt.Para->ParaList[6] = DHCP4_TAG_HOSTNAME;\r | |
1089 | OptEnt.Para->ParaList[7] = DHCP4_TAG_BOOTFILE_LEN;\r | |
1090 | OptEnt.Para->ParaList[8] = DHCP4_TAG_DOMAINNAME;\r | |
1091 | OptEnt.Para->ParaList[9] = DHCP4_TAG_ROOTPATH;\r | |
1092 | OptEnt.Para->ParaList[10] = DHCP4_TAG_EXTEND_PATH;\r | |
1093 | OptEnt.Para->ParaList[11] = DHCP4_TAG_EMTU;\r | |
1094 | OptEnt.Para->ParaList[12] = DHCP4_TAG_TTL;\r | |
1095 | OptEnt.Para->ParaList[13] = DHCP4_TAG_BROADCAST;\r | |
1096 | OptEnt.Para->ParaList[14] = DHCP4_TAG_NIS_DOMAIN;\r | |
1097 | OptEnt.Para->ParaList[15] = DHCP4_TAG_NIS_SERVER;\r | |
1098 | OptEnt.Para->ParaList[16] = DHCP4_TAG_NTP_SERVER;\r | |
1099 | OptEnt.Para->ParaList[17] = DHCP4_TAG_VENDOR;\r | |
1100 | OptEnt.Para->ParaList[18] = DHCP4_TAG_REQUEST_IP;\r | |
1101 | OptEnt.Para->ParaList[19] = DHCP4_TAG_LEASE;\r | |
1102 | OptEnt.Para->ParaList[20] = DHCP4_TAG_SERVER_ID;\r | |
1103 | OptEnt.Para->ParaList[21] = DHCP4_TAG_T1;\r | |
1104 | OptEnt.Para->ParaList[22] = DHCP4_TAG_T2;\r | |
1105 | OptEnt.Para->ParaList[23] = DHCP4_TAG_VENDOR_CLASS_ID;\r | |
1106 | OptEnt.Para->ParaList[24] = DHCP4_TAG_TFTP;\r | |
1107 | OptEnt.Para->ParaList[25] = DHCP4_TAG_BOOTFILE;\r | |
1108 | OptEnt.Para->ParaList[26] = DHCP4_TAG_UUID;\r | |
dc361cc5 | 1109 | OptEnt.Para->ParaList[27] = 0x80;\r |
1110 | OptEnt.Para->ParaList[28] = 0x81;\r | |
1111 | OptEnt.Para->ParaList[29] = 0x82;\r | |
1112 | OptEnt.Para->ParaList[30] = 0x83;\r | |
1113 | OptEnt.Para->ParaList[31] = 0x84;\r | |
1114 | OptEnt.Para->ParaList[32] = 0x85;\r | |
1115 | OptEnt.Para->ParaList[33] = 0x86;\r | |
1116 | OptEnt.Para->ParaList[34] = 0x87;\r | |
1117 | Index++;\r | |
1118 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1119 | \r | |
1120 | //\r | |
1121 | // Append UUID/Guid-based client identifier option\r | |
1122 | //\r | |
ac6c3d90 | 1123 | OptList[Index]->OpCode = DHCP4_TAG_UUID;\r |
c9325700 | 1124 | OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_UUID);\r |
dc361cc5 | 1125 | OptEnt.Uuid = (PXEBC_DHCP4_OPTION_UUID *) OptList[Index]->Data;\r |
1126 | OptEnt.Uuid->Type = 0;\r | |
1127 | Index++;\r | |
1128 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1129 | \r | |
57b301b5 | 1130 | if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) OptEnt.Uuid->Guid))) {\r |
dc361cc5 | 1131 | //\r |
1132 | // GUID not yet set - send all 0xff's to show programable (via SetVariable)\r | |
1133 | // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);\r | |
1134 | // GUID not yet set - send all 0's to show not programable\r | |
1135 | //\r | |
1136 | ZeroMem (OptEnt.Uuid->Guid, sizeof (EFI_GUID));\r | |
1137 | }\r | |
1138 | \r | |
1139 | //\r | |
1140 | // Append client network device interface option\r | |
1141 | //\r | |
ac6c3d90 | 1142 | OptList[Index]->OpCode = DHCP4_TAG_UNDI;\r |
c9325700 | 1143 | OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_UNDI);\r |
dc361cc5 | 1144 | OptEnt.Undi = (PXEBC_DHCP4_OPTION_UNDI *) OptList[Index]->Data;\r |
169a3461 | 1145 | if (Private->Nii != NULL) {\r |
1146 | OptEnt.Undi->Type = Private->Nii->Type;\r | |
1147 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r | |
1148 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r | |
1149 | } else {\r | |
1150 | OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r | |
1151 | OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r | |
1152 | OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r | |
1153 | }\r | |
dc361cc5 | 1154 | \r |
1155 | Index++;\r | |
1156 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1157 | \r | |
1158 | //\r | |
1159 | // Append client system architecture option\r | |
1160 | //\r | |
ac6c3d90 | 1161 | OptList[Index]->OpCode = DHCP4_TAG_ARCH;\r |
c9325700 | 1162 | OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_ARCH);\r |
dc361cc5 | 1163 | OptEnt.Arch = (PXEBC_DHCP4_OPTION_ARCH *) OptList[Index]->Data;\r |
ecd28a61 | 1164 | Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r |
e48e37fc | 1165 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r |
dc361cc5 | 1166 | Index++;\r |
1167 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r | |
1168 | \r | |
1169 | //\r | |
1170 | // Append client system architecture option\r | |
1171 | //\r | |
ac6c3d90 | 1172 | OptList[Index]->OpCode = DHCP4_TAG_VENDOR_CLASS_ID;\r |
c9325700 | 1173 | OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_CLID);\r |
dc361cc5 | 1174 | OptEnt.Clid = (PXEBC_DHCP4_OPTION_CLID *) OptList[Index]->Data;\r |
e48e37fc | 1175 | CopyMem (OptEnt.Clid, DEFAULT_CLASS_ID_DATA, sizeof (PXEBC_DHCP4_OPTION_CLID));\r |
ecd28a61 | 1176 | CvtNum (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE, OptEnt.Clid->ArchitectureType, sizeof (OptEnt.Clid->ArchitectureType));\r |
169a3461 | 1177 | \r |
1178 | if (Private->Nii != NULL) {\r | |
e2851998 | 1179 | //\r |
169a3461 | 1180 | // If NII protocol exists, update DHCP option data\r |
1181 | //\r | |
1182 | CopyMem (OptEnt.Clid->InterfaceName, Private->Nii->StringId, sizeof (OptEnt.Clid->InterfaceName));\r | |
1183 | CvtNum (Private->Nii->MajorVer, OptEnt.Clid->UndiMajor, sizeof (OptEnt.Clid->UndiMajor));\r | |
1184 | CvtNum (Private->Nii->MinorVer, OptEnt.Clid->UndiMinor, sizeof (OptEnt.Clid->UndiMinor));\r | |
1185 | }\r | |
1186 | \r | |
dc361cc5 | 1187 | Index++;\r |
1188 | \r | |
1189 | return Index;\r | |
1190 | }\r | |
1191 | \r | |
1192 | \r | |
1193 | /**\r | |
f737cfb9 | 1194 | Discover the boot of service and initialize the vendor option if exists.\r |
1195 | \r | |
1196 | @param Private Pointer to PxeBc private data.\r | |
1197 | @param Type PxeBc option boot item type\r | |
1198 | @param Layer PxeBc option boot item layer\r | |
1199 | @param UseBis Use BIS or not\r | |
e2851998 | 1200 | @param DestIp Ip address for server\r |
1201 | @param IpCount The total count of the server ip address\r | |
f737cfb9 | 1202 | @param SrvList Server list\r |
1203 | @param IsDiscv Discover the vendor or not\r | |
1204 | @param Reply The dhcp4 packet of Pxe reply\r | |
1205 | \r | |
1206 | @retval EFI_SUCCESS Operation succeeds.\r | |
1207 | @retval EFI_OUT_OF_RESOURCES Allocate memory pool failed.\r | |
1208 | @retval EFI_NOT_FOUND There is no vendor option exists.\r | |
e2851998 | 1209 | @retval EFI_TIMEOUT Send Pxe Discover time out.\r |
1210 | \r | |
dc361cc5 | 1211 | **/\r |
1212 | EFI_STATUS\r | |
1213 | PxeBcDiscvBootService (\r | |
1214 | IN PXEBC_PRIVATE_DATA * Private,\r | |
1215 | IN UINT16 Type,\r | |
1216 | IN UINT16 *Layer,\r | |
1217 | IN BOOLEAN UseBis,\r | |
1218 | IN EFI_IP_ADDRESS * DestIp,\r | |
1219 | IN UINT16 IpCount,\r | |
1220 | IN EFI_PXE_BASE_CODE_SRVLIST * SrvList,\r | |
1221 | IN BOOLEAN IsDiscv,\r | |
1222 | OUT EFI_DHCP4_PACKET * Reply OPTIONAL\r | |
1223 | )\r | |
1224 | {\r | |
1225 | EFI_PXE_BASE_CODE_UDP_PORT Sport;\r | |
1226 | EFI_PXE_BASE_CODE_MODE *Mode;\r | |
1227 | EFI_DHCP4_PROTOCOL *Dhcp4;\r | |
1228 | EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;\r | |
1229 | BOOLEAN IsBCast;\r | |
1230 | EFI_STATUS Status;\r | |
1231 | UINT16 RepIndex;\r | |
1232 | UINT16 SrvIndex;\r | |
1233 | UINT16 TryIndex;\r | |
1234 | EFI_DHCP4_LISTEN_POINT ListenPoint;\r | |
1235 | EFI_DHCP4_PACKET *Response;\r | |
1236 | EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_MAX_OPTION_NUM];\r | |
1237 | UINT32 OptCount;\r | |
1238 | EFI_DHCP4_PACKET_OPTION *PxeOpt;\r | |
1239 | PXEBC_OPTION_BOOT_ITEM *PxeBootItem;\r | |
1240 | UINT8 VendorOptLen;\r | |
982a9eae | 1241 | EFI_DHCP4_HEADER *DhcpHeader;\r |
434ce3fe | 1242 | UINT32 Xid;\r |
982a9eae | 1243 | \r |
dc361cc5 | 1244 | Mode = Private->PxeBc.Mode;\r |
1245 | Dhcp4 = Private->Dhcp4;\r | |
1246 | Status = EFI_SUCCESS;\r | |
1247 | \r | |
1248 | ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));\r | |
1249 | \r | |
1250 | if (DestIp == NULL) {\r | |
1251 | Sport = PXEBC_DHCP4_S_PORT;\r | |
1252 | IsBCast = TRUE;\r | |
1253 | } else {\r | |
1254 | Sport = PXEBC_BS_DISCOVER_PORT;\r | |
1255 | IsBCast = FALSE;\r | |
1256 | }\r | |
1257 | \r | |
1258 | if (!UseBis && Layer != NULL) {\r | |
1259 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r | |
1260 | }\r | |
1261 | \r | |
1262 | OptCount = PxeBcBuildDhcpOptions (Private, OptList, FALSE);\r | |
1263 | \r | |
1264 | if (IsDiscv) {\r | |
944bf8db | 1265 | ASSERT (Layer != NULL);\r |
dc361cc5 | 1266 | //\r |
1267 | // Add vendor option of PXE_BOOT_ITEM\r | |
1268 | //\r | |
c9325700 | 1269 | VendorOptLen = (UINT8) ((sizeof (EFI_DHCP4_PACKET_OPTION) - 1) * 2 + sizeof (PXEBC_OPTION_BOOT_ITEM) + 1);\r |
e48e37fc | 1270 | OptList[OptCount] = AllocatePool (VendorOptLen);\r |
dc361cc5 | 1271 | if (OptList[OptCount] == NULL) {\r |
1272 | return EFI_OUT_OF_RESOURCES;\r | |
1273 | }\r | |
1274 | \r | |
ac6c3d90 | 1275 | OptList[OptCount]->OpCode = DHCP4_TAG_VENDOR;\r |
dc361cc5 | 1276 | OptList[OptCount]->Length = (UINT8) (VendorOptLen - 2);\r |
1277 | PxeOpt = (EFI_DHCP4_PACKET_OPTION *) OptList[OptCount]->Data;\r | |
1278 | PxeOpt->OpCode = PXEBC_VENDOR_TAG_BOOT_ITEM;\r | |
c9325700 | 1279 | PxeOpt->Length = (UINT8) sizeof (PXEBC_OPTION_BOOT_ITEM);\r |
dc361cc5 | 1280 | PxeBootItem = (PXEBC_OPTION_BOOT_ITEM *) PxeOpt->Data;\r |
1281 | PxeBootItem->Type = HTONS (Type);\r | |
1282 | PxeBootItem->Layer = HTONS (*Layer);\r | |
ac6c3d90 | 1283 | PxeOpt->Data[PxeOpt->Length] = DHCP4_TAG_EOP;\r |
dc361cc5 | 1284 | \r |
1285 | OptCount++;\r | |
1286 | }\r | |
1287 | \r | |
1288 | Status = Dhcp4->Build (Dhcp4, &Private->SeedPacket, 0, NULL, OptCount, OptList, &Token.Packet);\r | |
1289 | \r | |
1290 | if (IsDiscv) {\r | |
766c7483 | 1291 | FreePool (OptList[OptCount - 1]);\r |
dc361cc5 | 1292 | }\r |
1293 | \r | |
1294 | if (EFI_ERROR (Status)) {\r | |
1295 | return Status;\r | |
1296 | }\r | |
1297 | \r | |
982a9eae | 1298 | DhcpHeader = &Token.Packet->Dhcp4.Header;\r |
1299 | if (Mode->SendGUID) {\r | |
57b301b5 | 1300 | if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) DhcpHeader->ClientHwAddr))) {\r |
982a9eae | 1301 | //\r |
1302 | // GUID not yet set - send all 0's to show not programable\r | |
1303 | //\r | |
1304 | ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));\r | |
1305 | }\r | |
1306 | \r | |
c9325700 | 1307 | DhcpHeader->HwAddrLen = (UINT8) sizeof (EFI_GUID);\r |
982a9eae | 1308 | }\r |
e2851998 | 1309 | \r |
434ce3fe | 1310 | Xid = NET_RANDOM (NetRandomInitSeed ());\r |
1311 | Token.Packet->Dhcp4.Header.Xid = HTONL(Xid);\r | |
1204fe83 | 1312 | Token.Packet->Dhcp4.Header.Reserved = HTONS((UINT16) ((IsBCast) ? 0x8000 : 0));\r |
e48e37fc | 1313 | CopyMem (&Token.Packet->Dhcp4.Header.ClientAddr, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));\r |
dc361cc5 | 1314 | \r |
1315 | Token.RemotePort = Sport;\r | |
1316 | \r | |
434ce3fe | 1317 | if (IsBCast) {\r |
e48e37fc | 1318 | SetMem (&Token.RemoteAddress, sizeof (EFI_IPv4_ADDRESS), 0xff);\r |
dc361cc5 | 1319 | } else {\r |
e48e37fc | 1320 | CopyMem (&Token.RemoteAddress, DestIp, sizeof (EFI_IPv4_ADDRESS));\r |
dc361cc5 | 1321 | }\r |
1322 | \r | |
e48e37fc | 1323 | CopyMem (&Token.GatewayAddress, &Private->GatewayIp, sizeof (EFI_IPv4_ADDRESS));\r |
dc361cc5 | 1324 | \r |
1325 | if (!IsBCast) {\r | |
1326 | Token.ListenPointCount = 1;\r | |
1327 | Token.ListenPoints = &ListenPoint;\r | |
1328 | Token.ListenPoints[0].ListenPort = PXEBC_BS_DISCOVER_PORT;\r | |
e48e37fc | 1329 | CopyMem (&Token.ListenPoints[0].ListenAddress, &Private->StationIp, sizeof(EFI_IPv4_ADDRESS));\r |
1330 | CopyMem (&Token.ListenPoints[0].SubnetMask, &Private->SubnetMask, sizeof(EFI_IPv4_ADDRESS));\r | |
dc361cc5 | 1331 | }\r |
1332 | //\r | |
1333 | // Send Pxe Discover\r | |
1334 | //\r | |
1335 | for (TryIndex = 1; TryIndex <= PXEBC_BOOT_REQUEST_RETRIES; TryIndex++) {\r | |
1336 | \r | |
434ce3fe | 1337 | Token.TimeoutValue = (UINT16) (PXEBC_BOOT_REQUEST_TIMEOUT * TryIndex);\r |
1338 | Token.Packet->Dhcp4.Header.Seconds = (UINT16) (PXEBC_BOOT_REQUEST_TIMEOUT * (TryIndex - 1));\r | |
dc361cc5 | 1339 | \r |
1340 | Status = Dhcp4->TransmitReceive (Dhcp4, &Token);\r | |
1341 | \r | |
1342 | if (Token.Status != EFI_TIMEOUT) {\r | |
1343 | break;\r | |
1344 | }\r | |
1345 | }\r | |
1346 | \r | |
0bf47d3d | 1347 | if (TryIndex > PXEBC_BOOT_REQUEST_RETRIES) {\r |
1348 | //\r | |
1349 | // No server response our PXE request\r | |
1350 | //\r | |
1351 | Status = EFI_TIMEOUT;\r | |
1352 | }\r | |
1353 | \r | |
dc361cc5 | 1354 | if (!EFI_ERROR (Status)) {\r |
1355 | //\r | |
1356 | // Find Pxe Reply\r | |
1357 | //\r | |
1358 | RepIndex = 0;\r | |
1359 | SrvIndex = 0;\r | |
1360 | Response = Token.ResponseList;\r | |
1361 | \r | |
1362 | while (RepIndex < Token.ResponseCount) {\r | |
471342bb FS |
1363 | if (Response->Length > PXEBC_DHCP4_MAX_PACKET_SIZE) {\r |
1364 | SrvIndex = 0;\r | |
1365 | RepIndex++;\r | |
1366 | Response = (EFI_DHCP4_PACKET *) ((UINT8 *) Response + Response->Size);\r | |
1367 | continue;\r | |
1368 | }\r | |
dc361cc5 | 1369 | \r |
1370 | while (SrvIndex < IpCount) {\r | |
1371 | \r | |
1372 | if (SrvList[SrvIndex].AcceptAnyResponse) {\r | |
1373 | break;\r | |
1374 | }\r | |
1375 | \r | |
1376 | if ((SrvList[SrvIndex].Type == Type) && EFI_IP4_EQUAL (&(Response->Dhcp4.Header.ServerAddr), &(Private->ServerIp))) {\r | |
1377 | break;\r | |
1378 | }\r | |
1379 | \r | |
1380 | SrvIndex++;\r | |
1381 | }\r | |
1382 | \r | |
1383 | if ((IpCount != SrvIndex) || (IpCount == 0)) {\r | |
1384 | break;\r | |
1385 | }\r | |
1386 | \r | |
1387 | SrvIndex = 0;\r | |
1388 | RepIndex++;\r | |
dc361cc5 | 1389 | Response = (EFI_DHCP4_PACKET *) ((UINT8 *) Response + Response->Size);\r |
1390 | }\r | |
1391 | \r | |
1392 | if (RepIndex < Token.ResponseCount) {\r | |
1393 | \r | |
1394 | if (Reply != NULL) {\r | |
471342bb FS |
1395 | Status = PxeBcCopyEfiDhcp4Packet (Reply, Response);\r |
1396 | if (EFI_ERROR(Status)) {\r | |
1397 | goto ON_EXIT;\r | |
1398 | }\r | |
dc361cc5 | 1399 | }\r |
1400 | \r | |
1401 | if (IsDiscv) {\r | |
e48e37fc | 1402 | CopyMem (&(Mode->PxeDiscover), &(Token.Packet->Dhcp4), Token.Packet->Length);\r |
dc361cc5 | 1403 | Mode->PxeDiscoverValid = TRUE;\r |
1404 | \r | |
e48e37fc | 1405 | CopyMem (Mode->PxeReply.Raw, &Response->Dhcp4, Response->Length);\r |
dc361cc5 | 1406 | Mode->PxeReplyReceived = TRUE;\r |
1407 | }\r | |
1408 | } else {\r | |
1409 | Status = EFI_NOT_FOUND;\r | |
1410 | }\r | |
471342bb | 1411 | }\r |
dc361cc5 | 1412 | \r |
471342bb FS |
1413 | ON_EXIT:\r |
1414 | //\r | |
1415 | // free the responselist\r | |
1416 | //\r | |
1417 | if (Token.ResponseList != NULL) {\r | |
1418 | FreePool (Token.ResponseList);\r | |
dc361cc5 | 1419 | }\r |
1420 | //\r | |
1421 | // Free the dhcp packet\r | |
1422 | //\r | |
471342bb FS |
1423 | if (Token.Packet != NULL) {\r |
1424 | FreePool (Token.Packet);\r | |
1425 | }\r | |
dc361cc5 | 1426 | \r |
1427 | return Status;\r | |
1428 | }\r | |
1429 | \r | |
1430 | \r | |
1431 | /**\r | |
f737cfb9 | 1432 | Parse interested dhcp options.\r |
dc361cc5 | 1433 | \r |
f737cfb9 | 1434 | @param Buffer Pointer to the dhcp options packet.\r |
1435 | @param Length The length of the dhcp options.\r | |
1436 | @param OptTag The option OpCode.\r | |
dc361cc5 | 1437 | \r |
e2851998 | 1438 | @return NULL if the buffer length is 0 and OpCode is not\r |
ac6c3d90 | 1439 | DHCP4_TAG_EOP, or the pointer to the buffer.\r |
dc361cc5 | 1440 | \r |
1441 | **/\r | |
1442 | EFI_DHCP4_PACKET_OPTION *\r | |
1443 | PxeBcParseExtendOptions (\r | |
1444 | IN UINT8 *Buffer,\r | |
1445 | IN UINT32 Length,\r | |
1446 | IN UINT8 OptTag\r | |
1447 | )\r | |
1448 | {\r | |
1449 | EFI_DHCP4_PACKET_OPTION *Option;\r | |
1450 | UINT32 Offset;\r | |
1451 | \r | |
1452 | Option = (EFI_DHCP4_PACKET_OPTION *) Buffer;\r | |
1453 | Offset = 0;\r | |
1454 | \r | |
ac6c3d90 | 1455 | while (Offset < Length && Option->OpCode != DHCP4_TAG_EOP) {\r |
dc361cc5 | 1456 | \r |
1457 | if (Option->OpCode == OptTag) {\r | |
1458 | \r | |
1459 | return Option;\r | |
1460 | }\r | |
1461 | \r | |
ac6c3d90 | 1462 | if (Option->OpCode == DHCP4_TAG_PAD) {\r |
dc361cc5 | 1463 | Offset++;\r |
1464 | } else {\r | |
1465 | Offset += Option->Length + 2;\r | |
1466 | }\r | |
1467 | \r | |
1468 | Option = (EFI_DHCP4_PACKET_OPTION *) (Buffer + Offset);\r | |
1469 | }\r | |
1470 | \r | |
1471 | return NULL;\r | |
1472 | }\r | |
1473 | \r | |
1474 | \r | |
1475 | /**\r | |
1476 | This function is to parse and check vendor options.\r | |
1477 | \r | |
1478 | @param Dhcp4Option Pointer to dhcp options\r | |
1479 | @param VendorOption Pointer to vendor options\r | |
1480 | \r | |
f737cfb9 | 1481 | @return TRUE if valid for vendor options, or FALSE.\r |
dc361cc5 | 1482 | \r |
1483 | **/\r | |
1484 | BOOLEAN\r | |
1485 | PxeBcParseVendorOptions (\r | |
1486 | IN EFI_DHCP4_PACKET_OPTION *Dhcp4Option,\r | |
1487 | IN PXEBC_VENDOR_OPTION *VendorOption\r | |
1488 | )\r | |
1489 | {\r | |
1490 | UINT32 *BitMap;\r | |
1491 | UINT8 VendorOptionLen;\r | |
1492 | EFI_DHCP4_PACKET_OPTION *PxeOption;\r | |
1493 | UINT8 Offset;\r | |
1494 | \r | |
1495 | BitMap = VendorOption->BitMap;\r | |
1496 | VendorOptionLen = Dhcp4Option->Length;\r | |
1497 | PxeOption = (EFI_DHCP4_PACKET_OPTION *) &Dhcp4Option->Data[0];\r | |
1498 | Offset = 0;\r | |
1499 | \r | |
ac6c3d90 | 1500 | while ((Offset < VendorOptionLen) && (PxeOption->OpCode != DHCP4_TAG_EOP)) {\r |
dc361cc5 | 1501 | //\r |
1502 | // Parse every Vendor Option and set its BitMap\r | |
1503 | //\r | |
1504 | switch (PxeOption->OpCode) {\r | |
1505 | \r | |
1506 | case PXEBC_VENDOR_TAG_MTFTP_IP:\r | |
1507 | \r | |
e48e37fc | 1508 | CopyMem (&VendorOption->MtftpIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r |
dc361cc5 | 1509 | break;\r |
1510 | \r | |
1511 | case PXEBC_VENDOR_TAG_MTFTP_CPORT:\r | |
1512 | \r | |
e48e37fc | 1513 | CopyMem (&VendorOption->MtftpCPort, PxeOption->Data, sizeof (VendorOption->MtftpCPort));\r |
dc361cc5 | 1514 | break;\r |
1515 | \r | |
1516 | case PXEBC_VENDOR_TAG_MTFTP_SPORT:\r | |
1517 | \r | |
e48e37fc | 1518 | CopyMem (&VendorOption->MtftpSPort, PxeOption->Data, sizeof (VendorOption->MtftpSPort));\r |
dc361cc5 | 1519 | break;\r |
1520 | \r | |
1521 | case PXEBC_VENDOR_TAG_MTFTP_TIMEOUT:\r | |
1522 | \r | |
1523 | VendorOption->MtftpTimeout = *PxeOption->Data;\r | |
1524 | break;\r | |
1525 | \r | |
1526 | case PXEBC_VENDOR_TAG_MTFTP_DELAY:\r | |
1527 | \r | |
1528 | VendorOption->MtftpDelay = *PxeOption->Data;\r | |
1529 | break;\r | |
1530 | \r | |
1531 | case PXEBC_VENDOR_TAG_DISCOVER_CTRL:\r | |
1532 | \r | |
1533 | VendorOption->DiscoverCtrl = *PxeOption->Data;\r | |
1534 | break;\r | |
1535 | \r | |
1536 | case PXEBC_VENDOR_TAG_DISCOVER_MCAST:\r | |
1537 | \r | |
e48e37fc | 1538 | CopyMem (&VendorOption->DiscoverMcastIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r |
dc361cc5 | 1539 | break;\r |
1540 | \r | |
1541 | case PXEBC_VENDOR_TAG_BOOT_SERVERS:\r | |
1542 | \r | |
1543 | VendorOption->BootSvrLen = PxeOption->Length;\r | |
1544 | VendorOption->BootSvr = (PXEBC_BOOT_SVR_ENTRY *) PxeOption->Data;\r | |
1545 | break;\r | |
1546 | \r | |
1547 | case PXEBC_VENDOR_TAG_BOOT_MENU:\r | |
1548 | \r | |
1549 | VendorOption->BootMenuLen = PxeOption->Length;\r | |
1550 | VendorOption->BootMenu = (PXEBC_BOOT_MENU_ENTRY *) PxeOption->Data;\r | |
1551 | break;\r | |
1552 | \r | |
1553 | case PXEBC_VENDOR_TAG_MENU_PROMPT:\r | |
1554 | \r | |
1555 | VendorOption->MenuPromptLen = PxeOption->Length;\r | |
1556 | VendorOption->MenuPrompt = (PXEBC_MENU_PROMPT *) PxeOption->Data;\r | |
1557 | break;\r | |
1558 | \r | |
1559 | case PXEBC_VENDOR_TAG_MCAST_ALLOC:\r | |
1560 | \r | |
e48e37fc | 1561 | CopyMem (&VendorOption->McastIpBase, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r |
1562 | CopyMem (&VendorOption->McastIpBlock, PxeOption->Data + 4, sizeof (VendorOption->McastIpBlock));\r | |
1563 | CopyMem (&VendorOption->McastIpRange, PxeOption->Data + 6, sizeof (VendorOption->McastIpRange));\r | |
dc361cc5 | 1564 | break;\r |
1565 | \r | |
1566 | case PXEBC_VENDOR_TAG_CREDENTIAL_TYPES:\r | |
1567 | \r | |
1568 | VendorOption->CredTypeLen = PxeOption->Length;\r | |
1569 | VendorOption->CredType = (UINT32 *) PxeOption->Data;\r | |
1570 | break;\r | |
1571 | \r | |
1572 | case PXEBC_VENDOR_TAG_BOOT_ITEM:\r | |
1573 | \r | |
e48e37fc | 1574 | CopyMem (&VendorOption->BootSrvType, PxeOption->Data, sizeof (VendorOption->BootSrvType));\r |
1575 | CopyMem (&VendorOption->BootSrvLayer, PxeOption->Data + 2, sizeof (VendorOption->BootSrvLayer));\r | |
dc361cc5 | 1576 | break;\r |
1577 | }\r | |
1578 | \r | |
1579 | SET_VENDOR_OPTION_BIT_MAP (BitMap, PxeOption->OpCode);\r | |
1580 | \r | |
ac6c3d90 | 1581 | if (PxeOption->OpCode == DHCP4_TAG_PAD) {\r |
dc361cc5 | 1582 | Offset++;\r |
1583 | } else {\r | |
1584 | Offset = (UINT8) (Offset + PxeOption->Length + 2);\r | |
1585 | }\r | |
1586 | \r | |
1587 | PxeOption = (EFI_DHCP4_PACKET_OPTION *) (Dhcp4Option->Data + Offset);\r | |
1588 | }\r | |
1589 | \r | |
1590 | //\r | |
1591 | // FixMe, return falas if invalid of any vendor option\r | |
1592 | //\r | |
1593 | \r | |
1594 | return TRUE;\r | |
1595 | }\r | |
1596 | \r | |
1597 | \r | |
1598 | /**\r | |
f737cfb9 | 1599 | This function display boot item detail.\r |
dc361cc5 | 1600 | \r |
e2851998 | 1601 | If the length of the boot item string over 70 Char, just display 70 Char.\r |
1602 | \r | |
f737cfb9 | 1603 | @param Str Pointer to a string (boot item string).\r |
1604 | @param Len The length of string.\r | |
dc361cc5 | 1605 | \r |
dc361cc5 | 1606 | **/\r |
1607 | VOID\r | |
1608 | PxeBcDisplayBootItem (\r | |
1609 | IN UINT8 *Str,\r | |
1610 | IN UINT8 Len\r | |
1611 | )\r | |
1612 | {\r | |
1613 | UINT8 Tmp;\r | |
1614 | \r | |
1615 | Len = (UINT8) MIN (70, Len);\r | |
1616 | Tmp = Str[Len];\r | |
1617 | Str[Len] = 0;\r | |
1618 | AsciiPrint ("%a \n", Str);\r | |
1619 | Str[Len] = Tmp;\r | |
1620 | }\r | |
1621 | \r | |
1622 | \r | |
1623 | /**\r | |
f737cfb9 | 1624 | Choose the boot prompt.\r |
dc361cc5 | 1625 | \r |
f737cfb9 | 1626 | @param Private Pointer to PxeBc private data.\r |
dc361cc5 | 1627 | \r |
f737cfb9 | 1628 | @retval EFI_SUCCESS Select boot prompt done.\r |
e2851998 | 1629 | @retval EFI_TIMEOUT Select boot prompt time out.\r |
f737cfb9 | 1630 | @retval EFI_NOT_FOUND The proxy offer is not Pxe10.\r |
1631 | @retval EFI_ABORTED User cancel the operation.\r | |
1632 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r | |
e2851998 | 1633 | \r |
dc361cc5 | 1634 | **/\r |
1635 | EFI_STATUS\r | |
1636 | PxeBcSelectBootPrompt (\r | |
1637 | IN PXEBC_PRIVATE_DATA *Private\r | |
1638 | )\r | |
1639 | {\r | |
1640 | PXEBC_CACHED_DHCP4_PACKET *Packet;\r | |
1641 | PXEBC_VENDOR_OPTION *VendorOpt;\r | |
1642 | EFI_EVENT TimeoutEvent;\r | |
1643 | EFI_EVENT DescendEvent;\r | |
1644 | EFI_INPUT_KEY InputKey;\r | |
1645 | EFI_STATUS Status;\r | |
1646 | UINT8 Timeout;\r | |
1647 | UINT8 *Prompt;\r | |
1648 | UINT8 PromptLen;\r | |
1649 | INT32 SecCol;\r | |
1650 | INT32 SecRow;\r | |
1651 | \r | |
1652 | TimeoutEvent = NULL;\r | |
1653 | DescendEvent = NULL;\r | |
1654 | \r | |
1655 | if (Private->PxeBc.Mode->ProxyOfferReceived) {\r | |
1656 | \r | |
1657 | Packet = &Private->ProxyOffer;\r | |
1658 | } else {\r | |
1659 | \r | |
1660 | Packet = &Private->Dhcp4Ack;\r | |
1661 | }\r | |
1662 | \r | |
1663 | if (Packet->OfferType != DHCP4_PACKET_TYPE_PXE10) {\r | |
1664 | return EFI_NOT_FOUND;\r | |
1665 | }\r | |
1666 | \r | |
1667 | VendorOpt = &Packet->PxeVendorOption;\r | |
30a95d4d | 1668 | //\r |
e3cf3c20 | 1669 | // According to the PXE specification 2.1, Table 2-1 PXE DHCP Options (Full \r |
1670 | // List), we must not consider a boot prompt or boot menu if all of the \r | |
1671 | // following hold:\r | |
1672 | // - the PXE_DISCOVERY_CONTROL PXE tag is present inside the Vendor Options\r | |
1673 | // (=43) DHCP tag, and\r | |
1674 | // - the PXE_DISCOVERY_CONTROL PXE tag has bit 3 set, and \r | |
1675 | // - a boot file name has been presented with DHCP option 67.\r | |
30a95d4d | 1676 | //\r |
1677 | if (IS_DISABLE_PROMPT_MENU (VendorOpt->DiscoverCtrl) &&\r | |
1678 | Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {\r | |
1679 | return EFI_ABORTED;\r | |
1680 | }\r | |
dc361cc5 | 1681 | \r |
1682 | if (!IS_VALID_BOOT_PROMPT (VendorOpt->BitMap)) {\r | |
1683 | return EFI_SUCCESS;\r | |
1684 | }\r | |
1685 | \r | |
1686 | Timeout = VendorOpt->MenuPrompt->Timeout;\r | |
1687 | Prompt = VendorOpt->MenuPrompt->Prompt;\r | |
1688 | PromptLen = (UINT8) (VendorOpt->MenuPromptLen - 1);\r | |
1689 | \r | |
1690 | if (Timeout == 0) {\r | |
1691 | return EFI_SUCCESS;\r | |
1692 | }\r | |
1693 | \r | |
1694 | if (Timeout == 255) {\r | |
1695 | return EFI_TIMEOUT;\r | |
1696 | }\r | |
1697 | \r | |
1698 | Status = gBS->CreateEvent (\r | |
1699 | EVT_TIMER,\r | |
1700 | TPL_CALLBACK,\r | |
1701 | NULL,\r | |
1702 | NULL,\r | |
1703 | &TimeoutEvent\r | |
1704 | );\r | |
1705 | \r | |
1706 | if (EFI_ERROR (Status)) {\r | |
1707 | return Status;\r | |
1708 | }\r | |
1709 | \r | |
1710 | Status = gBS->SetTimer (\r | |
1711 | TimeoutEvent,\r | |
1712 | TimerRelative,\r | |
e719fcb5 | 1713 | MultU64x32 (Timeout, TICKS_PER_SECOND)\r |
dc361cc5 | 1714 | );\r |
1715 | \r | |
1716 | if (EFI_ERROR (Status)) {\r | |
1717 | goto ON_EXIT;\r | |
1718 | }\r | |
1719 | \r | |
1720 | Status = gBS->CreateEvent (\r | |
1721 | EVT_TIMER,\r | |
1722 | TPL_CALLBACK,\r | |
1723 | NULL,\r | |
1724 | NULL,\r | |
1725 | &DescendEvent\r | |
1726 | );\r | |
1727 | \r | |
1728 | if (EFI_ERROR (Status)) {\r | |
1729 | goto ON_EXIT;\r | |
1730 | }\r | |
1731 | \r | |
1732 | Status = gBS->SetTimer (\r | |
1733 | DescendEvent,\r | |
1734 | TimerPeriodic,\r | |
1735 | TICKS_PER_SECOND\r | |
1736 | );\r | |
1737 | \r | |
1738 | if (EFI_ERROR (Status)) {\r | |
1739 | goto ON_EXIT;\r | |
1740 | }\r | |
1741 | \r | |
1742 | SecCol = gST->ConOut->Mode->CursorColumn;\r | |
1743 | SecRow = gST->ConOut->Mode->CursorRow;\r | |
1744 | \r | |
1745 | PxeBcDisplayBootItem (Prompt, PromptLen);\r | |
1746 | \r | |
1747 | gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);\r | |
1748 | AsciiPrint ("(%d) ", Timeout--);\r | |
1749 | \r | |
1750 | while (EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {\r | |
1751 | \r | |
1752 | if (!EFI_ERROR (gBS->CheckEvent (DescendEvent))) {\r | |
1753 | gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);\r | |
1754 | AsciiPrint ("(%d) ", Timeout--);\r | |
1755 | }\r | |
1756 | \r | |
1757 | if (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {\r | |
1758 | \r | |
1759 | gBS->Stall (10 * TICKS_PER_MS);\r | |
1760 | continue;\r | |
1761 | }\r | |
1762 | \r | |
1763 | if (InputKey.ScanCode == 0) {\r | |
1764 | \r | |
1765 | switch (InputKey.UnicodeChar) {\r | |
1766 | case CTRL ('c'):\r | |
1767 | Status = EFI_ABORTED;\r | |
1768 | break;\r | |
1769 | \r | |
1770 | case CTRL ('m'):\r | |
1771 | case 'm':\r | |
1772 | case 'M':\r | |
1773 | Status = EFI_TIMEOUT;\r | |
1774 | break;\r | |
1775 | \r | |
1776 | default:\r | |
1777 | continue;\r | |
1778 | }\r | |
1779 | } else {\r | |
1780 | \r | |
1781 | switch (InputKey.ScanCode) {\r | |
1782 | case SCAN_F8:\r | |
1783 | Status = EFI_TIMEOUT;\r | |
1784 | break;\r | |
1785 | \r | |
1786 | case SCAN_ESC:\r | |
1787 | Status = EFI_ABORTED;\r | |
1788 | break;\r | |
1789 | \r | |
1790 | default:\r | |
1791 | continue;\r | |
1792 | }\r | |
1793 | }\r | |
1794 | \r | |
1795 | break;\r | |
1796 | }\r | |
1797 | \r | |
1798 | gST->ConOut->SetCursorPosition (gST->ConOut, 0 , SecRow + 1);\r | |
1799 | \r | |
1800 | ON_EXIT:\r | |
1801 | \r | |
1802 | if (DescendEvent != NULL) {\r | |
1803 | gBS->CloseEvent (DescendEvent);\r | |
1804 | }\r | |
1805 | \r | |
1806 | if (TimeoutEvent != NULL) {\r | |
1807 | gBS->CloseEvent (TimeoutEvent);\r | |
1808 | }\r | |
1809 | \r | |
1810 | return Status;\r | |
1811 | }\r | |
1812 | \r | |
1813 | \r | |
1814 | /**\r | |
f737cfb9 | 1815 | Select the boot menu.\r |
dc361cc5 | 1816 | \r |
f737cfb9 | 1817 | @param Private Pointer to PxeBc private data.\r |
1818 | @param Type The type of the menu.\r | |
1819 | @param UseDefaultItem Use default item or not.\r | |
e2851998 | 1820 | \r |
f737cfb9 | 1821 | @retval EFI_ABORTED User cancel operation.\r |
1822 | @retval EFI_SUCCESS Select the boot menu success.\r | |
e2851998 | 1823 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r |
dc361cc5 | 1824 | \r |
1825 | **/\r | |
1826 | EFI_STATUS\r | |
1827 | PxeBcSelectBootMenu (\r | |
1828 | IN PXEBC_PRIVATE_DATA *Private,\r | |
1829 | OUT UINT16 *Type,\r | |
1830 | IN BOOLEAN UseDefaultItem\r | |
1831 | )\r | |
1832 | {\r | |
1833 | PXEBC_CACHED_DHCP4_PACKET *Packet;\r | |
e2851998 | 1834 | PXEBC_VENDOR_OPTION *VendorOpt;\r |
dc361cc5 | 1835 | EFI_INPUT_KEY InputKey;\r |
1836 | UINT8 MenuSize;\r | |
1837 | UINT8 MenuNum;\r | |
1838 | INT32 TopRow;\r | |
1839 | UINT16 Select;\r | |
1840 | UINT16 LastSelect;\r | |
1841 | UINT8 Index;\r | |
1842 | BOOLEAN Finish;\r | |
1843 | CHAR8 Blank[70];\r | |
1844 | PXEBC_BOOT_MENU_ENTRY *MenuItem;\r | |
1845 | PXEBC_BOOT_MENU_ENTRY *MenuArray[PXEBC_MAX_MENU_NUM];\r | |
1846 | \r | |
1847 | Finish = FALSE;\r | |
1848 | Select = 1;\r | |
1849 | Index = 0;\r | |
1850 | *Type = 0;\r | |
1851 | \r | |
1852 | if (Private->PxeBc.Mode->ProxyOfferReceived) {\r | |
1853 | \r | |
1854 | Packet = &Private->ProxyOffer;\r | |
1855 | } else {\r | |
1856 | \r | |
1857 | Packet = &Private->Dhcp4Ack;\r | |
1858 | }\r | |
1859 | \r | |
1860 | ASSERT (Packet->OfferType == DHCP4_PACKET_TYPE_PXE10);\r | |
1861 | \r | |
1862 | VendorOpt = &Packet->PxeVendorOption;\r | |
1863 | \r | |
1864 | if (!IS_VALID_BOOT_MENU (VendorOpt->BitMap)) {\r | |
1865 | return EFI_SUCCESS;\r | |
1866 | }\r | |
1867 | \r | |
1868 | SetMem (Blank, sizeof(Blank), ' ');\r | |
1869 | \r | |
1870 | MenuSize = VendorOpt->BootMenuLen;\r | |
1871 | MenuItem = VendorOpt->BootMenu;\r | |
1872 | \r | |
894d038a | 1873 | if (MenuSize == 0) {\r |
1874 | return EFI_NOT_READY;\r | |
1875 | }\r | |
1876 | \r | |
dc361cc5 | 1877 | while (MenuSize > 0) {\r |
7b0ae7e8 | 1878 | MenuArray[Index++] = MenuItem;\r |
dc361cc5 | 1879 | MenuSize = (UINT8) (MenuSize - (MenuItem->DescLen + 3));\r |
1880 | MenuItem = (PXEBC_BOOT_MENU_ENTRY *) ((UINT8 *) MenuItem + MenuItem->DescLen + 3);\r | |
7b0ae7e8 | 1881 | if (Index >= PXEBC_MAX_MENU_NUM) {\r |
894d038a | 1882 | break;\r |
1883 | }\r | |
dc361cc5 | 1884 | }\r |
1885 | \r | |
1886 | if (UseDefaultItem) {\r | |
894d038a | 1887 | *Type = MenuArray[0]->Type;\r |
58bba940 | 1888 | *Type = NTOHS (*Type);\r |
dc361cc5 | 1889 | return EFI_SUCCESS;\r |
1890 | }\r | |
1891 | \r | |
1892 | MenuNum = Index;\r | |
1893 | \r | |
1894 | for (Index = 0; Index < MenuNum; Index++) {\r | |
1895 | PxeBcDisplayBootItem (MenuArray[Index]->DescStr, MenuArray[Index]->DescLen);\r | |
1896 | }\r | |
1897 | \r | |
1898 | TopRow = gST->ConOut->Mode->CursorRow - MenuNum;\r | |
1899 | \r | |
1900 | do {\r | |
7b0ae7e8 | 1901 | ASSERT (Select < PXEBC_MAX_MENU_NUM);\r |
dc361cc5 | 1902 | //\r |
1903 | // highlight selected row\r | |
1904 | //\r | |
1905 | gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_BLACK, EFI_LIGHTGRAY));\r | |
1906 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + Select);\r | |
1907 | Blank[MenuArray[Select]->DescLen] = 0;\r | |
1908 | AsciiPrint ("%a\r", Blank);\r | |
1909 | PxeBcDisplayBootItem (MenuArray[Select]->DescStr, MenuArray[Select]->DescLen);\r | |
1910 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);\r | |
1911 | LastSelect = Select;\r | |
1912 | \r | |
1913 | while (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {\r | |
1914 | gBS->Stall (10 * TICKS_PER_MS);\r | |
1915 | }\r | |
1916 | \r | |
e2851998 | 1917 | if (InputKey.ScanCode != 0) {\r |
dc361cc5 | 1918 | switch (InputKey.UnicodeChar) {\r |
1919 | case CTRL ('c'):\r | |
1920 | InputKey.ScanCode = SCAN_ESC;\r | |
1921 | break;\r | |
1922 | \r | |
1923 | case CTRL ('j'): /* linefeed */\r | |
1924 | case CTRL ('m'): /* return */\r | |
1925 | Finish = TRUE;\r | |
1926 | break;\r | |
1927 | \r | |
1928 | case CTRL ('i'): /* tab */\r | |
1929 | case ' ':\r | |
1930 | case 'd':\r | |
1931 | case 'D':\r | |
1932 | InputKey.ScanCode = SCAN_DOWN;\r | |
1933 | break;\r | |
1934 | \r | |
1935 | case CTRL ('h'): /* backspace */\r | |
1936 | case 'u':\r | |
1937 | case 'U':\r | |
1938 | InputKey.ScanCode = SCAN_UP;\r | |
1939 | break;\r | |
1940 | \r | |
1941 | default:\r | |
1942 | InputKey.ScanCode = 0;\r | |
1943 | }\r | |
1944 | }\r | |
1945 | \r | |
1946 | switch (InputKey.ScanCode) {\r | |
1947 | case SCAN_LEFT:\r | |
1948 | case SCAN_UP:\r | |
f737cfb9 | 1949 | if (Select > 0) {\r |
dc361cc5 | 1950 | --Select;\r |
1951 | }\r | |
1952 | \r | |
1953 | break;\r | |
1954 | \r | |
1955 | case SCAN_DOWN:\r | |
1956 | case SCAN_RIGHT:\r | |
1957 | if (++Select == MenuNum) {\r | |
1958 | --Select;\r | |
1959 | }\r | |
1960 | \r | |
1961 | break;\r | |
1962 | \r | |
1963 | case SCAN_PAGE_UP:\r | |
1964 | case SCAN_HOME:\r | |
1965 | Select = 0;\r | |
1966 | break;\r | |
1967 | \r | |
1968 | case SCAN_PAGE_DOWN:\r | |
1969 | case SCAN_END:\r | |
1970 | Select = (UINT16) (MenuNum - 1);\r | |
1971 | break;\r | |
1972 | \r | |
1973 | case SCAN_ESC:\r | |
1974 | return EFI_ABORTED;\r | |
1975 | }\r | |
1976 | \r | |
1977 | /* unhighlight last selected row */\r | |
1978 | gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));\r | |
1979 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + LastSelect);\r | |
1980 | Blank[MenuArray[LastSelect]->DescLen] = 0;\r | |
1981 | AsciiPrint ("%a\r", Blank);\r | |
1982 | PxeBcDisplayBootItem (MenuArray[LastSelect]->DescStr, MenuArray[LastSelect]->DescLen);\r | |
1983 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);\r | |
1984 | } while (!Finish);\r | |
1985 | \r | |
29a4f92d | 1986 | ASSERT (Select < PXEBC_MAX_MENU_NUM);\r |
1987 | \r | |
dc361cc5 | 1988 | //\r |
1989 | // Swap the byte order\r | |
1990 | //\r | |
58bba940 | 1991 | CopyMem (Type, &MenuArray[Select]->Type, sizeof (UINT16));\r |
1992 | *Type = NTOHS (*Type);\r | |
dc361cc5 | 1993 | \r |
1994 | return EFI_SUCCESS;\r | |
1995 | }\r | |
1996 | \r |