| dc361cc5 |
1 | /** @file\r |
| f737cfb9 |
2 | Support for PxeBc dhcp functions.\r |
| 3 | \r |
| 4 | Copyright (c) 2007 - 2008, Intel Corporation.<BR> \r |
| dc361cc5 |
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 |
| dc361cc5 |
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 |
| f737cfb9 |
33 | This function initialize the DHCP4 message instance.\r |
| dc361cc5 |
34 | \r |
| f737cfb9 |
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 |
| dc361cc5 |
39 | \r |
| f737cfb9 |
40 | @return none.\r |
| dc361cc5 |
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 |
| e48e37fc |
59 | ZeroMem (Header, sizeof (EFI_DHCP4_HEADER));\r |
| dc361cc5 |
60 | Header->OpCode = PXEBC_DHCP4_OPCODE_REQUEST;\r |
| 61 | Header->HwType = Mode.IfType;\r |
| 62 | Header->HwAddrLen = (UINT8) Mode.HwAddressSize;\r |
| e48e37fc |
63 | CopyMem (Header->ClientHwAddr, &Mode.CurrentAddress, Header->HwAddrLen);\r |
| dc361cc5 |
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 |
| f737cfb9 |
71 | Copy the DCHP4 packet from srouce to destination.\r |
| dc361cc5 |
72 | \r |
| f737cfb9 |
73 | @param Dst Pointer to the EFI_DHCP4_PROTOCOL instance.\r |
| 74 | @param Src Pointer to the EFI_DHCP4_PROTOCOL instance.\r |
| dc361cc5 |
75 | \r |
| f737cfb9 |
76 | @return None.\r |
| dc361cc5 |
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 |
| e48e37fc |
87 | CopyMem (&Dst->Dhcp4, &Src->Dhcp4, Src->Length);\r |
| dc361cc5 |
88 | Dst->Length = Src->Length;\r |
| 89 | }\r |
| 90 | \r |
| 91 | \r |
| 92 | /**\r |
| f737cfb9 |
93 | Copy the dhcp4 packet to the PxeBc private data and parse the dhcp4 packet.\r |
| dc361cc5 |
94 | \r |
| f737cfb9 |
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 |
| dc361cc5 |
98 | \r |
| f737cfb9 |
99 | @return None.\r |
| dc361cc5 |
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 |
| e48e37fc |
117 | CopyMem (&Mode->ProxyOffer, &Offer->Dhcp4, Offer->Length);\r |
| dc361cc5 |
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 |
| f737cfb9 |
127 | @param CachedPacket Pointer to cached dhcp packet.\r |
| dc361cc5 |
128 | \r |
| f737cfb9 |
129 | @retval TRUE Succeed to parse and validation.\r |
| 130 | @retval FALSE Fail to parse or validation.\r |
| dc361cc5 |
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 |
| e48e37fc |
145 | ZeroMem (CachedPacket->Dhcp4Option, sizeof (CachedPacket->Dhcp4Option));\r |
| 146 | ZeroMem (&CachedPacket->PxeVendorOption, sizeof (CachedPacket->PxeVendorOption));\r |
| dc361cc5 |
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 |
| e48e37fc |
167 | (CompareMem (Option->Data, DEFAULT_CLASS_ID_DATA, 9) == 0)) {\r |
| dc361cc5 |
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 |
| f3f2e05d |
204 | OFFSET_OF (EFI_DHCP4_PACKET_OPTION, Data[0]));\r |
| dc361cc5 |
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 |
| dc361cc5 |
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 |
| f737cfb9 |
254 | Offer dhcp service with a BINL dhcp offer.\r |
| dc361cc5 |
255 | \r |
| f737cfb9 |
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 |
| dc361cc5 |
259 | \r |
| f737cfb9 |
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 |
| dc361cc5 |
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 | if (Offer->Dhcp4.Header.ServerAddr.Addr[0] == 0) {\r |
| 281 | //\r |
| 282 | // next server ip address is zero, use server id option instead.\r |
| 283 | //\r |
| e48e37fc |
284 | CopyMem (\r |
| dc361cc5 |
285 | &ServerIp.Addr[0],\r |
| 286 | Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,\r |
| 287 | sizeof (EFI_IPv4_ADDRESS)\r |
| 288 | );\r |
| 289 | } else {\r |
| 290 | //\r |
| 291 | // use next server ip address.\r |
| 292 | //\r |
| e48e37fc |
293 | CopyMem (&ServerIp.Addr[0], &Offer->Dhcp4.Header.ServerAddr, sizeof (EFI_IPv4_ADDRESS));\r |
| dc361cc5 |
294 | }\r |
| 295 | \r |
| 296 | CachedPacket = &Private->ProxyOffer;\r |
| 297 | Reply = &CachedPacket->Packet.Offer;\r |
| 298 | \r |
| 299 | Status = PxeBcDiscvBootService (\r |
| 300 | Private,\r |
| 301 | 0,\r |
| 302 | NULL,\r |
| 303 | FALSE,\r |
| 304 | &ServerIp,\r |
| 305 | 0,\r |
| 306 | NULL,\r |
| 307 | FALSE,\r |
| 308 | Reply\r |
| 309 | );\r |
| 310 | if (EFI_ERROR (Status)) {\r |
| 311 | return FALSE;\r |
| 312 | }\r |
| 313 | \r |
| 314 | if (!PxeBcParseCachedDhcpPacket (CachedPacket)) {\r |
| 315 | return FALSE;\r |
| 316 | }\r |
| 317 | \r |
| 318 | if ((CachedPacket->OfferType != DHCP4_PACKET_TYPE_PXE10) &&\r |
| 319 | (CachedPacket->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL)) {\r |
| 320 | //\r |
| 321 | // This BINL ack doesn't have discovery options set or bootfile name\r |
| 322 | // specified.\r |
| 323 | //\r |
| 324 | return FALSE;\r |
| 325 | }\r |
| 326 | \r |
| 327 | Private->PxeBc.Mode->ProxyOfferReceived = TRUE;\r |
| e48e37fc |
328 | CopyMem (&Private->PxeBc.Mode->ProxyOffer, &Reply->Dhcp4, Reply->Length);\r |
| dc361cc5 |
329 | \r |
| 330 | return TRUE;\r |
| 331 | }\r |
| 332 | \r |
| 333 | \r |
| 334 | /**\r |
| f737cfb9 |
335 | Offer dhcp service for each proxy with a BINL dhcp offer.\r |
| dc361cc5 |
336 | \r |
| f737cfb9 |
337 | @param Private Pointer to PxeBc private data\r |
| 338 | @param OfferIndex Pointer to the index of cached packets as complements of \r |
| 339 | pxe mode data, the index is maximum offer number.\r |
| dc361cc5 |
340 | \r |
| f737cfb9 |
341 | @return If there is no service needed offer return FALSE, otherwise TRUE.\r |
| dc361cc5 |
342 | \r |
| 343 | **/\r |
| 344 | BOOLEAN\r |
| 345 | PxeBcTryBinlProxy (\r |
| 346 | IN PXEBC_PRIVATE_DATA *Private,\r |
| 347 | OUT UINT32 *OfferIndex\r |
| 348 | )\r |
| 349 | {\r |
| 350 | UINT32 Index;\r |
| 351 | \r |
| 352 | for (Index = 0; Index < Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]; Index++) {\r |
| 353 | \r |
| 354 | *OfferIndex = Private->BinlIndex[Index];\r |
| 355 | //\r |
| 356 | // Try this BINL proxy offer\r |
| 357 | //\r |
| 358 | if (PxeBcTryBinl (Private, *OfferIndex)) {\r |
| 359 | return TRUE;\r |
| 360 | }\r |
| 361 | }\r |
| 362 | \r |
| 363 | return FALSE;\r |
| 364 | }\r |
| 365 | \r |
| 366 | \r |
| 367 | /**\r |
| f737cfb9 |
368 | This function is to check the selected proxy offer (include BINL dhcp offer and\r |
| 369 | DHCP_ONLY offer ) and set the flag and copy the DHCP packets to the Pxe base code\r |
| 370 | mode structure.\r |
| dc361cc5 |
371 | \r |
| f737cfb9 |
372 | @param Private Pointer to PxeBc private data.\r |
| dc361cc5 |
373 | \r |
| f737cfb9 |
374 | @retval EFI_SUCCESS Operational successful.\r |
| 375 | @retval EFI_NO_RESPONSE Offer dhcp service failed.\r |
| dc361cc5 |
376 | \r |
| 377 | **/\r |
| 378 | EFI_STATUS\r |
| 379 | PxeBcCheckSelectedOffer (\r |
| 380 | IN PXEBC_PRIVATE_DATA *Private\r |
| 381 | )\r |
| 382 | {\r |
| 383 | PXEBC_CACHED_DHCP4_PACKET *SelectedOffer;\r |
| 384 | EFI_DHCP4_PACKET_OPTION **Options;\r |
| 385 | UINT32 Index;\r |
| 386 | EFI_DHCP4_PACKET *Offer;\r |
| 387 | UINT32 ProxyOfferIndex;\r |
| 388 | EFI_STATUS Status;\r |
| 389 | EFI_PXE_BASE_CODE_MODE *Mode;\r |
| 390 | EFI_DHCP4_PACKET *Ack;\r |
| 391 | \r |
| 392 | ASSERT (Private->SelectedOffer != 0);\r |
| 393 | \r |
| 394 | Status = EFI_SUCCESS;\r |
| 395 | SelectedOffer = &Private->Dhcp4Offers[Private->SelectedOffer - 1];\r |
| 396 | Options = SelectedOffer->Dhcp4Option;\r |
| 397 | \r |
| 398 | if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BINL) {\r |
| 399 | //\r |
| 400 | // The addresses are acquired from a BINL dhcp offer, try BINL to get\r |
| 401 | // the bootfile name\r |
| 402 | //\r |
| 403 | if (!PxeBcTryBinl (Private, Private->SelectedOffer - 1)) {\r |
| 404 | Status = EFI_NO_RESPONSE;\r |
| 405 | }\r |
| 05c0e3cb |
406 | } else if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) {\r |
| dc361cc5 |
407 | //\r |
| 05c0e3cb |
408 | // The selected offer to finish the D.O.R.A. is a DHCP only offer, we need \r |
| 409 | // try proxy offers if there are some, othewise the bootfile name must be \r |
| 410 | // set in this DHCP only offer.\r |
| dc361cc5 |
411 | //\r |
| 05c0e3cb |
412 | if (Private->GotProxyOffer) {\r |
| dc361cc5 |
413 | //\r |
| 05c0e3cb |
414 | // Get rid of the compiler warning.\r |
| dc361cc5 |
415 | //\r |
| 05c0e3cb |
416 | ProxyOfferIndex = 0;\r |
| 417 | if (Private->SortOffers) {\r |
| dc361cc5 |
418 | //\r |
| 05c0e3cb |
419 | // The offers are sorted before selecting, the proxy offer type must be\r |
| 420 | // already determined.\r |
| dc361cc5 |
421 | //\r |
| 05c0e3cb |
422 | ASSERT (Private->ProxyIndex[Private->ProxyOfferType] > 0);\r |
| 423 | \r |
| 424 | if (Private->ProxyOfferType == DHCP4_PACKET_TYPE_BINL) {\r |
| 425 | //\r |
| 426 | // We buffer all received BINL proxy offers, try them all one by one\r |
| 427 | //\r |
| 428 | if (!PxeBcTryBinlProxy (Private, &ProxyOfferIndex)) {\r |
| 429 | Status = EFI_NO_RESPONSE;\r |
| 430 | }\r |
| 431 | } else {\r |
| 432 | //\r |
| 433 | // For other types, only one proxy offer is buffered.\r |
| 434 | //\r |
| 435 | ProxyOfferIndex = Private->ProxyIndex[Private->ProxyOfferType] - 1;\r |
| dc361cc5 |
436 | }\r |
| 437 | } else {\r |
| 438 | //\r |
| 05c0e3cb |
439 | // The proxy offer type is not determined, choose proxy offer in the \r |
| 440 | // received order.\r |
| dc361cc5 |
441 | //\r |
| 05c0e3cb |
442 | Status = EFI_NO_RESPONSE;\r |
| dc361cc5 |
443 | \r |
| 05c0e3cb |
444 | for (Index = 0; Index < Private->NumOffers; Index++) {\r |
| dc361cc5 |
445 | \r |
| 05c0e3cb |
446 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r |
| 447 | if (!IS_PROXY_DHCP_OFFER (Offer)) {\r |
| dc361cc5 |
448 | //\r |
| 05c0e3cb |
449 | // Skip non proxy dhcp offers.\r |
| dc361cc5 |
450 | //\r |
| 451 | continue;\r |
| 452 | }\r |
| dc361cc5 |
453 | \r |
| 05c0e3cb |
454 | if (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL) {\r |
| 455 | //\r |
| 456 | // Try BINL\r |
| 457 | //\r |
| 458 | if (!PxeBcTryBinl (Private, Index)) {\r |
| 459 | //\r |
| 460 | // Failed, skip to the next offer\r |
| 461 | //\r |
| 462 | continue;\r |
| 463 | }\r |
| 464 | }\r |
| 465 | \r |
| 466 | Private->ProxyOfferType = Private->Dhcp4Offers[Index].OfferType;\r |
| 467 | ProxyOfferIndex = Index;\r |
| 468 | Status = EFI_SUCCESS;\r |
| 469 | break;\r |
| 470 | }\r |
| dc361cc5 |
471 | }\r |
| dc361cc5 |
472 | \r |
| 05c0e3cb |
473 | if (!EFI_ERROR (Status) && (Private->ProxyOfferType != DHCP4_PACKET_TYPE_BINL)) {\r |
| 474 | //\r |
| 475 | // Copy the proxy offer to Mode and set the flag\r |
| 476 | //\r |
| 477 | PxeBcCopyProxyOffer (Private, ProxyOfferIndex);\r |
| 478 | }\r |
| 479 | } else {\r |
| dc361cc5 |
480 | //\r |
| 05c0e3cb |
481 | // No proxy offer is received, the bootfile name MUST be set.\r |
| dc361cc5 |
482 | //\r |
| 05c0e3cb |
483 | ASSERT (Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);\r |
| dc361cc5 |
484 | }\r |
| 485 | }\r |
| 486 | \r |
| 487 | if (!EFI_ERROR (Status)) {\r |
| 488 | //\r |
| 489 | // Everything is OK, set the flag and copy the DHCP packets.\r |
| 490 | //\r |
| 491 | Mode = Private->PxeBc.Mode;\r |
| 492 | Offer = &SelectedOffer->Packet.Offer;\r |
| 493 | \r |
| 494 | //\r |
| 495 | // The discover packet is already copied, just set flag here.\r |
| 496 | //\r |
| 497 | Mode->DhcpDiscoverValid = TRUE;\r |
| 498 | \r |
| 499 | Ack = &Private->Dhcp4Ack.Packet.Ack;\r |
| 500 | if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BOOTP) {\r |
| 501 | //\r |
| 502 | // Other type of ACK is already cached. Bootp is special that we should\r |
| 503 | // use the bootp reply as the ACK and put it into the DHCP_ONLY buffer.\r |
| 504 | //\r |
| 505 | PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Offer);\r |
| 506 | }\r |
| 507 | \r |
| 508 | PxeBcParseCachedDhcpPacket (&Private->Dhcp4Ack);\r |
| 509 | \r |
| 510 | Mode->DhcpAckReceived = TRUE;\r |
| 511 | \r |
| 512 | //\r |
| 513 | // Copy the dhcp ack.\r |
| 514 | //\r |
| e48e37fc |
515 | CopyMem (&Mode->DhcpAck, &Ack->Dhcp4, Ack->Length);\r |
| dc361cc5 |
516 | }\r |
| 517 | \r |
| 518 | return Status;\r |
| 519 | }\r |
| 520 | \r |
| 521 | \r |
| 522 | /**\r |
| f737cfb9 |
523 | Cache the Dhcp4 packet offer, Parse and validate each option of the packet.\r |
| dc361cc5 |
524 | \r |
| f737cfb9 |
525 | @param Private Pointer to PxeBc private data.\r |
| 526 | @param RcvdOffer Pointer to the received Dhcp proxy offer packet.\r |
| dc361cc5 |
527 | \r |
| f737cfb9 |
528 | @return None.\r |
| dc361cc5 |
529 | \r |
| 530 | **/\r |
| 531 | VOID\r |
| 532 | PxeBcCacheDhcpOffer (\r |
| 533 | IN PXEBC_PRIVATE_DATA *Private,\r |
| 534 | IN EFI_DHCP4_PACKET *RcvdOffer\r |
| 535 | )\r |
| 536 | {\r |
| 537 | PXEBC_CACHED_DHCP4_PACKET *CachedOffer;\r |
| 538 | EFI_DHCP4_PACKET *Offer;\r |
| 539 | UINT8 OfferType;\r |
| 540 | \r |
| 541 | CachedOffer = &Private->Dhcp4Offers[Private->NumOffers];\r |
| 542 | Offer = &CachedOffer->Packet.Offer;\r |
| 543 | \r |
| 544 | //\r |
| 545 | // Cache the orignal dhcp packet\r |
| 546 | //\r |
| 547 | PxeBcCopyEfiDhcp4Packet (Offer, RcvdOffer);\r |
| 548 | \r |
| 549 | //\r |
| 550 | // Parse and validate the options (including dhcp option and vendor option)\r |
| 551 | //\r |
| 552 | if (!PxeBcParseCachedDhcpPacket (CachedOffer)) {\r |
| 553 | return ;\r |
| 554 | }\r |
| 555 | \r |
| 556 | OfferType = CachedOffer->OfferType;\r |
| 557 | \r |
| 558 | if (OfferType == DHCP4_PACKET_TYPE_BOOTP) {\r |
| 559 | \r |
| 560 | if (Private->BootpIndex != 0) {\r |
| 561 | //\r |
| 562 | // Only cache the first bootp offer, discard others.\r |
| 563 | //\r |
| 564 | return ;\r |
| 565 | } else {\r |
| 566 | //\r |
| 567 | // Take as a dhcp only offer, but record index specifically.\r |
| 568 | //\r |
| 569 | Private->BootpIndex = Private->NumOffers + 1;\r |
| 570 | }\r |
| 571 | } else {\r |
| 572 | \r |
| 573 | if (IS_PROXY_DHCP_OFFER (Offer)) {\r |
| 574 | //\r |
| 575 | // It's a proxy dhcp offer with no your address, including pxe10, wfm11a or binl offer.\r |
| 576 | //\r |
| 05c0e3cb |
577 | Private->GotProxyOffer = TRUE;\r |
| 578 | \r |
| dc361cc5 |
579 | if (OfferType == DHCP4_PACKET_TYPE_BINL) {\r |
| 580 | //\r |
| 581 | // Cache all binl offers.\r |
| 582 | //\r |
| 583 | Private->BinlIndex[Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]] = Private->NumOffers;\r |
| 584 | Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]++;\r |
| 585 | } else if (Private->ProxyIndex[OfferType] != 0) {\r |
| 586 | //\r |
| 587 | // Only cache the first pxe10/wfm11a offers each, discard the others.\r |
| 588 | //\r |
| 589 | return ;\r |
| 590 | } else {\r |
| 591 | //\r |
| 592 | // Record index of the proxy dhcp offer with type other than binl.\r |
| 593 | //\r |
| 594 | Private->ProxyIndex[OfferType] = Private->NumOffers + 1;\r |
| 595 | }\r |
| 596 | } else {\r |
| 597 | //\r |
| 598 | // It's a dhcp offer with your address.\r |
| 599 | //\r |
| 600 | Private->OfferIndex[OfferType][Private->ServerCount[OfferType]] = Private->NumOffers;\r |
| 601 | Private->ServerCount[OfferType]++;\r |
| 602 | }\r |
| 603 | }\r |
| 604 | \r |
| 605 | //\r |
| 606 | // Count the accepted offers.\r |
| 607 | //\r |
| 608 | Private->NumOffers++;\r |
| 609 | }\r |
| 610 | \r |
| 611 | \r |
| 612 | /**\r |
| f737cfb9 |
613 | Select the specified proxy offer, such as BINL, DHCP_ONLY and so on.\r |
| 614 | If the proxy does not exist, try offers with bootfile.\r |
| 615 | \r |
| 616 | @param Private Pointer to PxeBc private data.\r |
| dc361cc5 |
617 | \r |
| f737cfb9 |
618 | @return None\r |
| dc361cc5 |
619 | \r |
| 620 | **/\r |
| 621 | VOID\r |
| 622 | PxeBcSelectOffer (\r |
| 623 | IN PXEBC_PRIVATE_DATA *Private\r |
| 624 | )\r |
| 625 | {\r |
| 626 | UINT32 Index;\r |
| 627 | UINT32 OfferIndex;\r |
| 628 | EFI_DHCP4_PACKET *Offer;\r |
| dc361cc5 |
629 | \r |
| 630 | Private->SelectedOffer = 0;\r |
| 631 | \r |
| 632 | if (Private->SortOffers) {\r |
| 633 | //\r |
| 634 | // Select offer according to the priority\r |
| 635 | //\r |
| 636 | if (Private->ServerCount[DHCP4_PACKET_TYPE_PXE10] > 0) {\r |
| 637 | //\r |
| 638 | // DHCP with PXE10\r |
| 639 | //\r |
| 640 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_PXE10][0] + 1;\r |
| 641 | \r |
| 642 | } else if (Private->ServerCount[DHCP4_PACKET_TYPE_WFM11A] > 0) {\r |
| 643 | //\r |
| 644 | // DHCP with WfM\r |
| 645 | //\r |
| 646 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_WFM11A][0] + 1;\r |
| 647 | \r |
| 648 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_PXE10] > 0) &&\r |
| 649 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r |
| 650 | ) {\r |
| 651 | //\r |
| 652 | // DHCP only and proxy DHCP with PXE10\r |
| 653 | //\r |
| 654 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r |
| 655 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_PXE10;\r |
| 656 | \r |
| 657 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_WFM11A] > 0) &&\r |
| 658 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r |
| 659 | ) {\r |
| 660 | //\r |
| 661 | // DHCP only and proxy DHCP with WfM\r |
| 662 | //\r |
| 663 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r |
| 664 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_WFM11A;\r |
| 665 | \r |
| 666 | } else if (Private->ServerCount[DHCP4_PACKET_TYPE_BINL] > 0) {\r |
| 667 | //\r |
| 668 | // DHCP with BINL\r |
| 669 | //\r |
| 670 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_BINL][0] + 1;\r |
| 671 | \r |
| 672 | } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL] > 0) &&\r |
| 673 | (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)\r |
| 674 | ) {\r |
| 675 | //\r |
| 676 | // DHCP only and proxy DHCP with BINL\r |
| 677 | //\r |
| 678 | Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;\r |
| 679 | Private->ProxyOfferType = DHCP4_PACKET_TYPE_BINL;\r |
| 680 | \r |
| 681 | } else {\r |
| 682 | //\r |
| 683 | // Try offers with bootfile\r |
| 684 | //\r |
| 685 | for (Index = 0; Index < Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY]; Index++) {\r |
| 686 | //\r |
| 687 | // Select the first DHCP only offer with bootfile\r |
| 688 | //\r |
| 689 | OfferIndex = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][Index];\r |
| 690 | if (Private->Dhcp4Offers[OfferIndex].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {\r |
| 691 | Private->SelectedOffer = OfferIndex + 1;\r |
| 692 | break;\r |
| 693 | }\r |
| 694 | }\r |
| 695 | \r |
| 696 | if (Private->SelectedOffer == 0) {\r |
| 697 | //\r |
| 698 | // Select the Bootp reply with bootfile if any\r |
| 699 | //\r |
| 700 | Private->SelectedOffer = Private->BootpIndex;\r |
| 701 | }\r |
| 702 | }\r |
| 703 | } else {\r |
| 704 | //\r |
| 705 | // Try the offers in the received order.\r |
| 706 | //\r |
| dc361cc5 |
707 | for (Index = 0; Index < Private->NumOffers; Index++) {\r |
| 708 | \r |
| 709 | Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r |
| 710 | \r |
| 711 | if (IS_PROXY_DHCP_OFFER (Offer)) {\r |
| 712 | //\r |
| 713 | // Skip proxy offers\r |
| 714 | //\r |
| 715 | continue;\r |
| 716 | }\r |
| 717 | \r |
| 718 | if ((Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) &&\r |
| 05c0e3cb |
719 | ((!Private->GotProxyOffer) && (Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL))) {\r |
| dc361cc5 |
720 | //\r |
| 721 | // DHCP only offer but no proxy offer received and no bootfile option in this offer\r |
| 722 | //\r |
| 723 | continue;\r |
| 724 | }\r |
| 725 | \r |
| 726 | Private->SelectedOffer = Index + 1;\r |
| 727 | break;\r |
| 728 | }\r |
| 729 | }\r |
| 730 | }\r |
| 731 | \r |
| 732 | \r |
| 733 | /**\r |
| f737cfb9 |
734 | Callback routine.\r |
| 735 | \r |
| 736 | EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver\r |
| 737 | to intercept events that occurred in the configuration process. This structure\r |
| 738 | provides advanced control of each state transition of the DHCP process. The\r |
| 739 | returned status code determines the behavior of the EFI DHCPv4 Protocol driver.\r |
| 740 | There are three possible returned values, which are described in the following\r |
| 741 | table.\r |
| 742 | \r |
| 743 | @param This Pointer to the EFI DHCPv4 Protocol instance that is used to\r |
| 744 | configure this callback function.\r |
| 745 | @param Context Pointer to the context that is initialized by\r |
| 746 | EFI_DHCP4_PROTOCOL.Configure().\r |
| 747 | @param CurrentState The current operational state of the EFI DHCPv4 Protocol\r |
| 748 | driver.\r |
| 749 | @param Dhcp4Event The event that occurs in the current state, which usually means a\r |
| 750 | state transition.\r |
| 751 | @param Packet The DHCP packet that is going to be sent or already received.\r |
| 752 | @param NewPacket The packet that is used to replace the above Packet.\r |
| 753 | \r |
| 754 | @retval EFI_SUCCESS Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.\r |
| 755 | @retval EFI_NOT_READY Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol\r |
| 756 | driver will continue to wait for more DHCPOFFER packets until the retry\r |
| 757 | timeout expires.\r |
| 758 | @retval EFI_ABORTED Tells the EFI DHCPv4 Protocol driver to abort the current process and\r |
| 759 | return to the Dhcp4Init or Dhcp4InitReboot state.\r |
| dc361cc5 |
760 | \r |
| 761 | **/\r |
| 762 | EFI_STATUS\r |
| 763 | PxeBcDhcpCallBack (\r |
| 764 | IN EFI_DHCP4_PROTOCOL * This,\r |
| 765 | IN VOID *Context,\r |
| 766 | IN EFI_DHCP4_STATE CurrentState,\r |
| 767 | IN EFI_DHCP4_EVENT Dhcp4Event,\r |
| 768 | IN EFI_DHCP4_PACKET * Packet OPTIONAL,\r |
| 769 | OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL\r |
| 770 | )\r |
| 771 | {\r |
| 772 | PXEBC_PRIVATE_DATA *Private;\r |
| 773 | EFI_PXE_BASE_CODE_MODE *Mode;\r |
| 774 | EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;\r |
| 775 | EFI_DHCP4_PACKET_OPTION *MaxMsgSize;\r |
| 776 | UINT16 Value;\r |
| 777 | EFI_STATUS Status;\r |
| 778 | BOOLEAN Received;\r |
| 982a9eae |
779 | CHAR8 *SystemSerialNumber;\r |
| 780 | EFI_DHCP4_HEADER *DhcpHeader;\r |
| dc361cc5 |
781 | \r |
| 782 | if ((Dhcp4Event != Dhcp4RcvdOffer) &&\r |
| 783 | (Dhcp4Event != Dhcp4SelectOffer) &&\r |
| 784 | (Dhcp4Event != Dhcp4SendDiscover) &&\r |
| 982a9eae |
785 | (Dhcp4Event != Dhcp4RcvdAck) &&\r |
| 786 | (Dhcp4Event != Dhcp4SendRequest)) {\r |
| dc361cc5 |
787 | return EFI_SUCCESS;\r |
| 788 | }\r |
| 789 | \r |
| 790 | Private = (PXEBC_PRIVATE_DATA *) Context;\r |
| 791 | Mode = Private->PxeBc.Mode;\r |
| 792 | Callback = Private->PxeBcCallback;\r |
| 793 | \r |
| 794 | //\r |
| 795 | // Override the Maximum DHCP Message Size.\r |
| 796 | //\r |
| 797 | MaxMsgSize = PxeBcParseExtendOptions (\r |
| 798 | Packet->Dhcp4.Option,\r |
| 799 | GET_OPTION_BUFFER_LEN (Packet),\r |
| 800 | PXEBC_DHCP4_TAG_MAXMSG\r |
| 801 | );\r |
| 802 | if (MaxMsgSize != NULL) {\r |
| 803 | Value = HTONS (PXEBC_DHCP4_MAX_PACKET_SIZE);\r |
| e48e37fc |
804 | CopyMem (MaxMsgSize->Data, &Value, sizeof (Value));\r |
| dc361cc5 |
805 | }\r |
| 806 | \r |
| 807 | if ((Dhcp4Event != Dhcp4SelectOffer) && (Callback != NULL)) {\r |
| 808 | Received = (BOOLEAN) ((Dhcp4Event == Dhcp4RcvdOffer) || (Dhcp4Event == Dhcp4RcvdAck));\r |
| 809 | Status = Callback->Callback (\r |
| 810 | Callback,\r |
| 811 | Private->Function,\r |
| 812 | Received,\r |
| 813 | Packet->Length,\r |
| 814 | (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp4\r |
| 815 | );\r |
| 816 | if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r |
| 817 | return EFI_ABORTED;\r |
| 818 | }\r |
| 819 | }\r |
| 820 | \r |
| 821 | Status = EFI_SUCCESS;\r |
| 822 | \r |
| 823 | switch (Dhcp4Event) {\r |
| 824 | \r |
| 825 | case Dhcp4SendDiscover:\r |
| 982a9eae |
826 | case Dhcp4SendRequest:\r |
| 827 | if (Mode->SendGUID) {\r |
| 828 | //\r |
| 829 | // send the system GUID instead of the MAC address as the hardware address\r |
| 830 | // in the DHCP packet header.\r |
| 831 | //\r |
| 832 | DhcpHeader = &Packet->Dhcp4.Header;\r |
| 833 | \r |
| 834 | if (EFI_ERROR (GetSmbiosSystemGuidAndSerialNumber ((EFI_GUID *) DhcpHeader->ClientHwAddr, &SystemSerialNumber))) {\r |
| 835 | //\r |
| 836 | // GUID not yet set - send all 0xff's to show programable (via SetVariable)\r |
| 837 | // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);\r |
| 838 | // GUID not yet set - send all 0's to show not programable\r |
| 839 | //\r |
| 840 | ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));\r |
| 841 | }\r |
| 842 | \r |
| 843 | DhcpHeader->HwAddrLen = sizeof (EFI_GUID);\r |
| 844 | }\r |
| 845 | \r |
| 846 | if (Dhcp4Event == Dhcp4SendDiscover) {\r |
| 847 | //\r |
| 848 | // Cache the dhcp discover packet, of which some information will be used later.\r |
| 849 | //\r |
| 850 | CopyMem (Mode->DhcpDiscover.Raw, &Packet->Dhcp4, Packet->Length);\r |
| 851 | }\r |
| dc361cc5 |
852 | \r |
| 853 | break;\r |
| 854 | \r |
| 855 | case Dhcp4RcvdOffer:\r |
| 856 | Status = EFI_NOT_READY;\r |
| 857 | if (Private->NumOffers < PXEBC_MAX_OFFER_NUM) {\r |
| 858 | //\r |
| 859 | // Cache the dhcp offers in Private->Dhcp4Offers[]\r |
| 860 | //\r |
| 861 | PxeBcCacheDhcpOffer (Private, Packet);\r |
| 862 | }\r |
| 863 | \r |
| 864 | break;\r |
| 865 | \r |
| 866 | case Dhcp4SelectOffer:\r |
| 867 | //\r |
| 868 | // Select an offer, if succeeded, Private->SelectedOffer points to\r |
| 869 | // the index of the selected one.\r |
| 870 | //\r |
| 871 | PxeBcSelectOffer (Private);\r |
| 872 | \r |
| 873 | if (Private->SelectedOffer == 0) {\r |
| 874 | Status = EFI_ABORTED;\r |
| 875 | } else {\r |
| 876 | *NewPacket = &Private->Dhcp4Offers[Private->SelectedOffer - 1].Packet.Offer;\r |
| 877 | }\r |
| 878 | \r |
| 879 | break;\r |
| 880 | \r |
| 881 | case Dhcp4RcvdAck:\r |
| 882 | //\r |
| 883 | // Cache Ack\r |
| 884 | //\r |
| 885 | ASSERT (Private->SelectedOffer != 0);\r |
| 886 | \r |
| 887 | PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Packet);\r |
| 888 | break;\r |
| 12f3a142 |
889 | \r |
| 890 | default:\r |
| 891 | break;\r |
| dc361cc5 |
892 | }\r |
| 893 | \r |
| 894 | return Status;\r |
| 895 | }\r |
| 896 | \r |
| 897 | \r |
| 898 | /**\r |
| f737cfb9 |
899 | Initialize the DHCP options and build the option list.\r |
| dc361cc5 |
900 | \r |
| f737cfb9 |
901 | @param Private Pointer to PxeBc private data.\r |
| 902 | @param OptList Pointer to a DHCP option list.\r |
| 903 | \r |
| 904 | @param IsDhcpDiscover Discover dhcp option or not. \r |
| dc361cc5 |
905 | \r |
| f737cfb9 |
906 | @return The index item number of the option list.\r |
| dc361cc5 |
907 | \r |
| 908 | **/\r |
| 909 | UINT32\r |
| 910 | PxeBcBuildDhcpOptions (\r |
| 911 | IN PXEBC_PRIVATE_DATA *Private,\r |
| 912 | IN EFI_DHCP4_PACKET_OPTION **OptList,\r |
| 913 | IN BOOLEAN IsDhcpDiscover\r |
| 914 | )\r |
| 915 | {\r |
| 916 | UINT32 Index;\r |
| 917 | PXEBC_DHCP4_OPTION_ENTRY OptEnt;\r |
| 918 | UINT16 Value;\r |
| 919 | CHAR8 *SystemSerialNumber;\r |
| 920 | \r |
| 921 | Index = 0;\r |
| 922 | OptList[0] = (EFI_DHCP4_PACKET_OPTION *) Private->OptionBuffer;\r |
| 923 | \r |
| 924 | if (!IsDhcpDiscover) {\r |
| 925 | //\r |
| 926 | // Append message type.\r |
| 927 | //\r |
| 928 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_MSG_TYPE;\r |
| 929 | OptList[Index]->Length = 1;\r |
| 930 | OptEnt.Mesg = (PXEBC_DHCP4_OPTION_MESG *) OptList[Index]->Data;\r |
| 931 | OptEnt.Mesg->Type = PXEBC_DHCP4_MSG_TYPE_REQUEST;\r |
| 932 | Index++;\r |
| 933 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r |
| 934 | \r |
| 935 | //\r |
| 936 | // Append max message size.\r |
| 937 | //\r |
| 938 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_MAXMSG;\r |
| 939 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE);\r |
| 940 | OptEnt.MaxMesgSize = (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *) OptList[Index]->Data;\r |
| 941 | Value = NTOHS (PXEBC_DHCP4_MAX_PACKET_SIZE);\r |
| e48e37fc |
942 | CopyMem (&OptEnt.MaxMesgSize->Size, &Value, sizeof (UINT16));\r |
| dc361cc5 |
943 | Index++;\r |
| 944 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r |
| 945 | }\r |
| 946 | //\r |
| 947 | // Parameter request list option.\r |
| 948 | //\r |
| 949 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_PARA_LIST;\r |
| 950 | OptList[Index]->Length = 35;\r |
| 951 | OptEnt.Para = (PXEBC_DHCP4_OPTION_PARA *) OptList[Index]->Data;\r |
| 952 | OptEnt.Para->ParaList[0] = PXEBC_DHCP4_TAG_NETMASK;\r |
| 953 | OptEnt.Para->ParaList[1] = PXEBC_DHCP4_TAG_TIME_OFFSET;\r |
| 954 | OptEnt.Para->ParaList[2] = PXEBC_DHCP4_TAG_ROUTER;\r |
| 955 | OptEnt.Para->ParaList[3] = PXEBC_DHCP4_TAG_TIME_SERVER;\r |
| 956 | OptEnt.Para->ParaList[4] = PXEBC_DHCP4_TAG_NAME_SERVER;\r |
| 957 | OptEnt.Para->ParaList[5] = PXEBC_DHCP4_TAG_DNS_SERVER;\r |
| 958 | OptEnt.Para->ParaList[6] = PXEBC_DHCP4_TAG_HOSTNAME;\r |
| 959 | OptEnt.Para->ParaList[7] = PXEBC_DHCP4_TAG_BOOTFILE_LEN;\r |
| 960 | OptEnt.Para->ParaList[8] = PXEBC_DHCP4_TAG_DOMAINNAME;\r |
| 961 | OptEnt.Para->ParaList[9] = PXEBC_DHCP4_TAG_ROOTPATH;\r |
| 962 | OptEnt.Para->ParaList[10] = PXEBC_DHCP4_TAG_EXTEND_PATH;\r |
| 963 | OptEnt.Para->ParaList[11] = PXEBC_DHCP4_TAG_EMTU;\r |
| 964 | OptEnt.Para->ParaList[12] = PXEBC_DHCP4_TAG_TTL;\r |
| 965 | OptEnt.Para->ParaList[13] = PXEBC_DHCP4_TAG_BROADCAST;\r |
| 966 | OptEnt.Para->ParaList[14] = PXEBC_DHCP4_TAG_NIS_DOMAIN;\r |
| 967 | OptEnt.Para->ParaList[15] = PXEBC_DHCP4_TAG_NIS_SERVER;\r |
| 968 | OptEnt.Para->ParaList[16] = PXEBC_DHCP4_TAG_NTP_SERVER;\r |
| 969 | OptEnt.Para->ParaList[17] = PXEBC_DHCP4_TAG_VENDOR;\r |
| 970 | OptEnt.Para->ParaList[18] = PXEBC_DHCP4_TAG_REQUEST_IP;\r |
| 971 | OptEnt.Para->ParaList[19] = PXEBC_DHCP4_TAG_LEASE;\r |
| 972 | OptEnt.Para->ParaList[20] = PXEBC_DHCP4_TAG_SERVER_ID;\r |
| 973 | OptEnt.Para->ParaList[21] = PXEBC_DHCP4_TAG_T1;\r |
| 974 | OptEnt.Para->ParaList[22] = PXEBC_DHCP4_TAG_T2;\r |
| 975 | OptEnt.Para->ParaList[23] = PXEBC_DHCP4_TAG_CLASS_ID;\r |
| 976 | OptEnt.Para->ParaList[24] = PXEBC_DHCP4_TAG_TFTP;\r |
| 977 | OptEnt.Para->ParaList[25] = PXEBC_DHCP4_TAG_BOOTFILE;\r |
| 978 | OptEnt.Para->ParaList[26] = PXEBC_PXE_DHCP4_TAG_UUID;\r |
| 979 | OptEnt.Para->ParaList[27] = 0x80;\r |
| 980 | OptEnt.Para->ParaList[28] = 0x81;\r |
| 981 | OptEnt.Para->ParaList[29] = 0x82;\r |
| 982 | OptEnt.Para->ParaList[30] = 0x83;\r |
| 983 | OptEnt.Para->ParaList[31] = 0x84;\r |
| 984 | OptEnt.Para->ParaList[32] = 0x85;\r |
| 985 | OptEnt.Para->ParaList[33] = 0x86;\r |
| 986 | OptEnt.Para->ParaList[34] = 0x87;\r |
| 987 | Index++;\r |
| 988 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r |
| 989 | \r |
| 990 | //\r |
| 991 | // Append UUID/Guid-based client identifier option\r |
| 992 | //\r |
| 993 | OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_UUID;\r |
| 994 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_UUID);\r |
| 995 | OptEnt.Uuid = (PXEBC_DHCP4_OPTION_UUID *) OptList[Index]->Data;\r |
| 996 | OptEnt.Uuid->Type = 0;\r |
| 997 | Index++;\r |
| 998 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r |
| 999 | \r |
| 1000 | if (EFI_ERROR (GetSmbiosSystemGuidAndSerialNumber ((EFI_GUID *) OptEnt.Uuid->Guid, &SystemSerialNumber))) {\r |
| 1001 | //\r |
| 1002 | // GUID not yet set - send all 0xff's to show programable (via SetVariable)\r |
| 1003 | // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);\r |
| 1004 | // GUID not yet set - send all 0's to show not programable\r |
| 1005 | //\r |
| 1006 | ZeroMem (OptEnt.Uuid->Guid, sizeof (EFI_GUID));\r |
| 1007 | }\r |
| 1008 | \r |
| 1009 | //\r |
| 1010 | // Append client network device interface option\r |
| 1011 | //\r |
| 1012 | OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_UNDI;\r |
| 1013 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_UNDI);\r |
| 1014 | OptEnt.Undi = (PXEBC_DHCP4_OPTION_UNDI *) OptList[Index]->Data;\r |
| 1015 | OptEnt.Undi->Type = Private->Nii->Type;\r |
| 1016 | OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r |
| 1017 | OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r |
| 1018 | \r |
| 1019 | Index++;\r |
| 1020 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r |
| 1021 | \r |
| 1022 | //\r |
| 1023 | // Append client system architecture option\r |
| 1024 | //\r |
| 1025 | OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_ARCH;\r |
| 1026 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_ARCH);\r |
| 1027 | OptEnt.Arch = (PXEBC_DHCP4_OPTION_ARCH *) OptList[Index]->Data;\r |
| 1028 | Value = HTONS (SYS_ARCH);\r |
| e48e37fc |
1029 | CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r |
| dc361cc5 |
1030 | Index++;\r |
| 1031 | OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r |
| 1032 | \r |
| 1033 | //\r |
| 1034 | // Append client system architecture option\r |
| 1035 | //\r |
| 1036 | OptList[Index]->OpCode = PXEBC_DHCP4_TAG_CLASS_ID;\r |
| 1037 | OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_CLID);\r |
| 1038 | OptEnt.Clid = (PXEBC_DHCP4_OPTION_CLID *) OptList[Index]->Data;\r |
| e48e37fc |
1039 | CopyMem (OptEnt.Clid, DEFAULT_CLASS_ID_DATA, sizeof (PXEBC_DHCP4_OPTION_CLID));\r |
| dc361cc5 |
1040 | CvtNum (SYS_ARCH, OptEnt.Clid->ArchitectureType, sizeof (OptEnt.Clid->ArchitectureType));\r |
| e48e37fc |
1041 | CopyMem (OptEnt.Clid->InterfaceName, Private->Nii->StringId, sizeof (OptEnt.Clid->InterfaceName));\r |
| dc361cc5 |
1042 | CvtNum (Private->Nii->MajorVer, OptEnt.Clid->UndiMajor, sizeof (OptEnt.Clid->UndiMajor));\r |
| 1043 | CvtNum (Private->Nii->MinorVer, OptEnt.Clid->UndiMinor, sizeof (OptEnt.Clid->UndiMinor));\r |
| 1044 | Index++;\r |
| 1045 | \r |
| 1046 | return Index;\r |
| 1047 | }\r |
| 1048 | \r |
| 1049 | \r |
| 1050 | /**\r |
| f737cfb9 |
1051 | Discover the boot of service and initialize the vendor option if exists.\r |
| 1052 | \r |
| 1053 | @param Private Pointer to PxeBc private data.\r |
| 1054 | @param Type PxeBc option boot item type\r |
| 1055 | @param Layer PxeBc option boot item layer\r |
| 1056 | @param UseBis Use BIS or not\r |
| 1057 | @param DestIp Ip address for server \r |
| 1058 | @param IpCount The total count of the server ip address \r |
| 1059 | @param SrvList Server list\r |
| 1060 | @param IsDiscv Discover the vendor or not\r |
| 1061 | @param Reply The dhcp4 packet of Pxe reply\r |
| 1062 | \r |
| 1063 | @retval EFI_SUCCESS Operation succeeds.\r |
| 1064 | @retval EFI_OUT_OF_RESOURCES Allocate memory pool failed.\r |
| 1065 | @retval EFI_NOT_FOUND There is no vendor option exists.\r |
| 1066 | @retval EFI_TIMEOUT Send Pxe Discover time out. \r |
| 1067 | \r |
| dc361cc5 |
1068 | **/\r |
| 1069 | EFI_STATUS\r |
| 1070 | PxeBcDiscvBootService (\r |
| 1071 | IN PXEBC_PRIVATE_DATA * Private,\r |
| 1072 | IN UINT16 Type,\r |
| 1073 | IN UINT16 *Layer,\r |
| 1074 | IN BOOLEAN UseBis,\r |
| 1075 | IN EFI_IP_ADDRESS * DestIp,\r |
| 1076 | IN UINT16 IpCount,\r |
| 1077 | IN EFI_PXE_BASE_CODE_SRVLIST * SrvList,\r |
| 1078 | IN BOOLEAN IsDiscv,\r |
| 1079 | OUT EFI_DHCP4_PACKET * Reply OPTIONAL\r |
| 1080 | )\r |
| 1081 | {\r |
| 1082 | EFI_PXE_BASE_CODE_UDP_PORT Sport;\r |
| 1083 | EFI_PXE_BASE_CODE_MODE *Mode;\r |
| 1084 | EFI_DHCP4_PROTOCOL *Dhcp4;\r |
| 1085 | EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;\r |
| 1086 | BOOLEAN IsBCast;\r |
| 1087 | EFI_STATUS Status;\r |
| 1088 | UINT16 RepIndex;\r |
| 1089 | UINT16 SrvIndex;\r |
| 1090 | UINT16 TryIndex;\r |
| 1091 | EFI_DHCP4_LISTEN_POINT ListenPoint;\r |
| 1092 | EFI_DHCP4_PACKET *Response;\r |
| 1093 | EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_MAX_OPTION_NUM];\r |
| 1094 | UINT32 OptCount;\r |
| 1095 | EFI_DHCP4_PACKET_OPTION *PxeOpt;\r |
| 1096 | PXEBC_OPTION_BOOT_ITEM *PxeBootItem;\r |
| 1097 | UINT8 VendorOptLen;\r |
| 982a9eae |
1098 | CHAR8 *SystemSerialNumber;\r |
| 1099 | EFI_DHCP4_HEADER *DhcpHeader;\r |
| 1100 | \r |
| dc361cc5 |
1101 | \r |
| 1102 | Mode = Private->PxeBc.Mode;\r |
| 1103 | Dhcp4 = Private->Dhcp4;\r |
| 1104 | Status = EFI_SUCCESS;\r |
| 1105 | \r |
| 1106 | ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));\r |
| 1107 | \r |
| 1108 | if (DestIp == NULL) {\r |
| 1109 | Sport = PXEBC_DHCP4_S_PORT;\r |
| 1110 | IsBCast = TRUE;\r |
| 1111 | } else {\r |
| 1112 | Sport = PXEBC_BS_DISCOVER_PORT;\r |
| 1113 | IsBCast = FALSE;\r |
| 1114 | }\r |
| 1115 | \r |
| 1116 | if (!UseBis && Layer != NULL) {\r |
| 1117 | *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r |
| 1118 | }\r |
| 1119 | \r |
| 1120 | OptCount = PxeBcBuildDhcpOptions (Private, OptList, FALSE);\r |
| 1121 | \r |
| 1122 | if (IsDiscv) {\r |
| 1123 | //\r |
| 1124 | // Add vendor option of PXE_BOOT_ITEM\r |
| 1125 | //\r |
| 1126 | VendorOptLen = (sizeof (EFI_DHCP4_PACKET_OPTION) - 1) * 2 + sizeof (PXEBC_OPTION_BOOT_ITEM) + 1;\r |
| e48e37fc |
1127 | OptList[OptCount] = AllocatePool (VendorOptLen);\r |
| dc361cc5 |
1128 | if (OptList[OptCount] == NULL) {\r |
| 1129 | return EFI_OUT_OF_RESOURCES;\r |
| 1130 | }\r |
| 1131 | \r |
| 1132 | OptList[OptCount]->OpCode = PXEBC_DHCP4_TAG_VENDOR;\r |
| 1133 | OptList[OptCount]->Length = (UINT8) (VendorOptLen - 2);\r |
| 1134 | PxeOpt = (EFI_DHCP4_PACKET_OPTION *) OptList[OptCount]->Data;\r |
| 1135 | PxeOpt->OpCode = PXEBC_VENDOR_TAG_BOOT_ITEM;\r |
| 1136 | PxeOpt->Length = sizeof (PXEBC_OPTION_BOOT_ITEM);\r |
| 1137 | PxeBootItem = (PXEBC_OPTION_BOOT_ITEM *) PxeOpt->Data;\r |
| 1138 | PxeBootItem->Type = HTONS (Type);\r |
| 1139 | PxeBootItem->Layer = HTONS (*Layer);\r |
| 1140 | PxeOpt->Data[PxeOpt->Length] = PXEBC_DHCP4_TAG_EOP;\r |
| 1141 | \r |
| 1142 | OptCount++;\r |
| 1143 | }\r |
| 1144 | \r |
| 1145 | Status = Dhcp4->Build (Dhcp4, &Private->SeedPacket, 0, NULL, OptCount, OptList, &Token.Packet);\r |
| 1146 | \r |
| 1147 | if (IsDiscv) {\r |
| e48e37fc |
1148 | gBS->FreePool (OptList[OptCount - 1]);\r |
| dc361cc5 |
1149 | }\r |
| 1150 | \r |
| 1151 | if (EFI_ERROR (Status)) {\r |
| 1152 | return Status;\r |
| 1153 | }\r |
| 1154 | \r |
| 982a9eae |
1155 | DhcpHeader = &Token.Packet->Dhcp4.Header;\r |
| 1156 | if (Mode->SendGUID) {\r |
| 1157 | if (EFI_ERROR (GetSmbiosSystemGuidAndSerialNumber ((EFI_GUID *) DhcpHeader->ClientHwAddr, &SystemSerialNumber))) {\r |
| 1158 | //\r |
| 1159 | // GUID not yet set - send all 0's to show not programable\r |
| 1160 | //\r |
| 1161 | ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));\r |
| 1162 | }\r |
| 1163 | \r |
| 1164 | DhcpHeader->HwAddrLen = sizeof (EFI_GUID);\r |
| 1165 | }\r |
| 1166 | \r |
| dc361cc5 |
1167 | Token.Packet->Dhcp4.Header.Xid = NET_RANDOM (NetRandomInitSeed ());\r |
| 1168 | Token.Packet->Dhcp4.Header.Reserved = (UINT16) ((IsBCast) ? 0xf000 : 0x0);\r |
| e48e37fc |
1169 | CopyMem (&Token.Packet->Dhcp4.Header.ClientAddr, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));\r |
| dc361cc5 |
1170 | \r |
| 1171 | Token.RemotePort = Sport;\r |
| 1172 | \r |
| 1173 | if (DestIp == NULL) {\r |
| e48e37fc |
1174 | SetMem (&Token.RemoteAddress, sizeof (EFI_IPv4_ADDRESS), 0xff);\r |
| dc361cc5 |
1175 | } else {\r |
| e48e37fc |
1176 | CopyMem (&Token.RemoteAddress, DestIp, sizeof (EFI_IPv4_ADDRESS));\r |
| dc361cc5 |
1177 | }\r |
| 1178 | \r |
| e48e37fc |
1179 | CopyMem (&Token.GatewayAddress, &Private->GatewayIp, sizeof (EFI_IPv4_ADDRESS));\r |
| dc361cc5 |
1180 | \r |
| 1181 | if (!IsBCast) {\r |
| 1182 | Token.ListenPointCount = 1;\r |
| 1183 | Token.ListenPoints = &ListenPoint;\r |
| 1184 | Token.ListenPoints[0].ListenPort = PXEBC_BS_DISCOVER_PORT;\r |
| e48e37fc |
1185 | CopyMem (&Token.ListenPoints[0].ListenAddress, &Private->StationIp, sizeof(EFI_IPv4_ADDRESS));\r |
| 1186 | CopyMem (&Token.ListenPoints[0].SubnetMask, &Private->SubnetMask, sizeof(EFI_IPv4_ADDRESS));\r |
| dc361cc5 |
1187 | }\r |
| 1188 | //\r |
| 1189 | // Send Pxe Discover\r |
| 1190 | //\r |
| 1191 | for (TryIndex = 1; TryIndex <= PXEBC_BOOT_REQUEST_RETRIES; TryIndex++) {\r |
| 1192 | \r |
| 1193 | Token.TimeoutValue = PXEBC_BOOT_REQUEST_TIMEOUT * TryIndex;\r |
| 1194 | \r |
| 1195 | Status = Dhcp4->TransmitReceive (Dhcp4, &Token);\r |
| 1196 | \r |
| 1197 | if (Token.Status != EFI_TIMEOUT) {\r |
| 1198 | break;\r |
| 1199 | }\r |
| 1200 | }\r |
| 1201 | \r |
| 1202 | if (!EFI_ERROR (Status)) {\r |
| 1203 | //\r |
| 1204 | // Find Pxe Reply\r |
| 1205 | //\r |
| 1206 | RepIndex = 0;\r |
| 1207 | SrvIndex = 0;\r |
| 1208 | Response = Token.ResponseList;\r |
| 1209 | \r |
| 1210 | while (RepIndex < Token.ResponseCount) {\r |
| 1211 | \r |
| 1212 | while (SrvIndex < IpCount) {\r |
| 1213 | \r |
| 1214 | if (SrvList[SrvIndex].AcceptAnyResponse) {\r |
| 1215 | break;\r |
| 1216 | }\r |
| 1217 | \r |
| 1218 | if ((SrvList[SrvIndex].Type == Type) && EFI_IP4_EQUAL (&(Response->Dhcp4.Header.ServerAddr), &(Private->ServerIp))) {\r |
| 1219 | break;\r |
| 1220 | }\r |
| 1221 | \r |
| 1222 | SrvIndex++;\r |
| 1223 | }\r |
| 1224 | \r |
| 1225 | if ((IpCount != SrvIndex) || (IpCount == 0)) {\r |
| 1226 | break;\r |
| 1227 | }\r |
| 1228 | \r |
| 1229 | SrvIndex = 0;\r |
| 1230 | RepIndex++;\r |
| 1231 | \r |
| 1232 | Response = (EFI_DHCP4_PACKET *) ((UINT8 *) Response + Response->Size);\r |
| 1233 | }\r |
| 1234 | \r |
| 1235 | if (RepIndex < Token.ResponseCount) {\r |
| 1236 | \r |
| 1237 | if (Reply != NULL) {\r |
| 1238 | PxeBcCopyEfiDhcp4Packet (Reply, Response);\r |
| 1239 | }\r |
| 1240 | \r |
| 1241 | if (IsDiscv) {\r |
| e48e37fc |
1242 | CopyMem (&(Mode->PxeDiscover), &(Token.Packet->Dhcp4), Token.Packet->Length);\r |
| dc361cc5 |
1243 | Mode->PxeDiscoverValid = TRUE;\r |
| 1244 | \r |
| e48e37fc |
1245 | CopyMem (Mode->PxeReply.Raw, &Response->Dhcp4, Response->Length);\r |
| dc361cc5 |
1246 | Mode->PxeReplyReceived = TRUE;\r |
| 1247 | }\r |
| 1248 | } else {\r |
| 1249 | Status = EFI_NOT_FOUND;\r |
| 1250 | }\r |
| 1251 | \r |
| 1252 | //\r |
| 1253 | // free the responselist\r |
| 1254 | //\r |
| e48e37fc |
1255 | gBS->FreePool (Token.ResponseList);\r |
| dc361cc5 |
1256 | }\r |
| 1257 | //\r |
| 1258 | // Free the dhcp packet\r |
| 1259 | //\r |
| e48e37fc |
1260 | gBS->FreePool (Token.Packet);\r |
| dc361cc5 |
1261 | \r |
| 1262 | return Status;\r |
| 1263 | }\r |
| 1264 | \r |
| 1265 | \r |
| 1266 | /**\r |
| f737cfb9 |
1267 | Parse interested dhcp options.\r |
| dc361cc5 |
1268 | \r |
| f737cfb9 |
1269 | @param Buffer Pointer to the dhcp options packet.\r |
| 1270 | @param Length The length of the dhcp options.\r |
| 1271 | @param OptTag The option OpCode.\r |
| dc361cc5 |
1272 | \r |
| f737cfb9 |
1273 | @return NULL if the buffer length is 0 and OpCode is not \r |
| 1274 | PXEBC_DHCP4_TAG_EOP, or the pointer to the buffer.\r |
| dc361cc5 |
1275 | \r |
| 1276 | **/\r |
| 1277 | EFI_DHCP4_PACKET_OPTION *\r |
| 1278 | PxeBcParseExtendOptions (\r |
| 1279 | IN UINT8 *Buffer,\r |
| 1280 | IN UINT32 Length,\r |
| 1281 | IN UINT8 OptTag\r |
| 1282 | )\r |
| 1283 | {\r |
| 1284 | EFI_DHCP4_PACKET_OPTION *Option;\r |
| 1285 | UINT32 Offset;\r |
| 1286 | \r |
| 1287 | Option = (EFI_DHCP4_PACKET_OPTION *) Buffer;\r |
| 1288 | Offset = 0;\r |
| 1289 | \r |
| 1290 | while (Offset < Length && Option->OpCode != PXEBC_DHCP4_TAG_EOP) {\r |
| 1291 | \r |
| 1292 | if (Option->OpCode == OptTag) {\r |
| 1293 | \r |
| 1294 | return Option;\r |
| 1295 | }\r |
| 1296 | \r |
| 1297 | if (Option->OpCode == PXEBC_DHCP4_TAG_PAD) {\r |
| 1298 | Offset++;\r |
| 1299 | } else {\r |
| 1300 | Offset += Option->Length + 2;\r |
| 1301 | }\r |
| 1302 | \r |
| 1303 | Option = (EFI_DHCP4_PACKET_OPTION *) (Buffer + Offset);\r |
| 1304 | }\r |
| 1305 | \r |
| 1306 | return NULL;\r |
| 1307 | }\r |
| 1308 | \r |
| 1309 | \r |
| 1310 | /**\r |
| 1311 | This function is to parse and check vendor options.\r |
| 1312 | \r |
| 1313 | @param Dhcp4Option Pointer to dhcp options\r |
| 1314 | @param VendorOption Pointer to vendor options\r |
| 1315 | \r |
| f737cfb9 |
1316 | @return TRUE if valid for vendor options, or FALSE.\r |
| dc361cc5 |
1317 | \r |
| 1318 | **/\r |
| 1319 | BOOLEAN\r |
| 1320 | PxeBcParseVendorOptions (\r |
| 1321 | IN EFI_DHCP4_PACKET_OPTION *Dhcp4Option,\r |
| 1322 | IN PXEBC_VENDOR_OPTION *VendorOption\r |
| 1323 | )\r |
| 1324 | {\r |
| 1325 | UINT32 *BitMap;\r |
| 1326 | UINT8 VendorOptionLen;\r |
| 1327 | EFI_DHCP4_PACKET_OPTION *PxeOption;\r |
| 1328 | UINT8 Offset;\r |
| 1329 | \r |
| 1330 | BitMap = VendorOption->BitMap;\r |
| 1331 | VendorOptionLen = Dhcp4Option->Length;\r |
| 1332 | PxeOption = (EFI_DHCP4_PACKET_OPTION *) &Dhcp4Option->Data[0];\r |
| 1333 | Offset = 0;\r |
| 1334 | \r |
| 1335 | while ((Offset < VendorOptionLen) && (PxeOption->OpCode != PXEBC_DHCP4_TAG_EOP)) {\r |
| 1336 | //\r |
| 1337 | // Parse every Vendor Option and set its BitMap\r |
| 1338 | //\r |
| 1339 | switch (PxeOption->OpCode) {\r |
| 1340 | \r |
| 1341 | case PXEBC_VENDOR_TAG_MTFTP_IP:\r |
| 1342 | \r |
| e48e37fc |
1343 | CopyMem (&VendorOption->MtftpIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r |
| dc361cc5 |
1344 | break;\r |
| 1345 | \r |
| 1346 | case PXEBC_VENDOR_TAG_MTFTP_CPORT:\r |
| 1347 | \r |
| e48e37fc |
1348 | CopyMem (&VendorOption->MtftpCPort, PxeOption->Data, sizeof (VendorOption->MtftpCPort));\r |
| dc361cc5 |
1349 | break;\r |
| 1350 | \r |
| 1351 | case PXEBC_VENDOR_TAG_MTFTP_SPORT:\r |
| 1352 | \r |
| e48e37fc |
1353 | CopyMem (&VendorOption->MtftpSPort, PxeOption->Data, sizeof (VendorOption->MtftpSPort));\r |
| dc361cc5 |
1354 | break;\r |
| 1355 | \r |
| 1356 | case PXEBC_VENDOR_TAG_MTFTP_TIMEOUT:\r |
| 1357 | \r |
| 1358 | VendorOption->MtftpTimeout = *PxeOption->Data;\r |
| 1359 | break;\r |
| 1360 | \r |
| 1361 | case PXEBC_VENDOR_TAG_MTFTP_DELAY:\r |
| 1362 | \r |
| 1363 | VendorOption->MtftpDelay = *PxeOption->Data;\r |
| 1364 | break;\r |
| 1365 | \r |
| 1366 | case PXEBC_VENDOR_TAG_DISCOVER_CTRL:\r |
| 1367 | \r |
| 1368 | VendorOption->DiscoverCtrl = *PxeOption->Data;\r |
| 1369 | break;\r |
| 1370 | \r |
| 1371 | case PXEBC_VENDOR_TAG_DISCOVER_MCAST:\r |
| 1372 | \r |
| e48e37fc |
1373 | CopyMem (&VendorOption->DiscoverMcastIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r |
| dc361cc5 |
1374 | break;\r |
| 1375 | \r |
| 1376 | case PXEBC_VENDOR_TAG_BOOT_SERVERS:\r |
| 1377 | \r |
| 1378 | VendorOption->BootSvrLen = PxeOption->Length;\r |
| 1379 | VendorOption->BootSvr = (PXEBC_BOOT_SVR_ENTRY *) PxeOption->Data;\r |
| 1380 | break;\r |
| 1381 | \r |
| 1382 | case PXEBC_VENDOR_TAG_BOOT_MENU:\r |
| 1383 | \r |
| 1384 | VendorOption->BootMenuLen = PxeOption->Length;\r |
| 1385 | VendorOption->BootMenu = (PXEBC_BOOT_MENU_ENTRY *) PxeOption->Data;\r |
| 1386 | break;\r |
| 1387 | \r |
| 1388 | case PXEBC_VENDOR_TAG_MENU_PROMPT:\r |
| 1389 | \r |
| 1390 | VendorOption->MenuPromptLen = PxeOption->Length;\r |
| 1391 | VendorOption->MenuPrompt = (PXEBC_MENU_PROMPT *) PxeOption->Data;\r |
| 1392 | break;\r |
| 1393 | \r |
| 1394 | case PXEBC_VENDOR_TAG_MCAST_ALLOC:\r |
| 1395 | \r |
| e48e37fc |
1396 | CopyMem (&VendorOption->McastIpBase, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r |
| 1397 | CopyMem (&VendorOption->McastIpBlock, PxeOption->Data + 4, sizeof (VendorOption->McastIpBlock));\r |
| 1398 | CopyMem (&VendorOption->McastIpRange, PxeOption->Data + 6, sizeof (VendorOption->McastIpRange));\r |
| dc361cc5 |
1399 | break;\r |
| 1400 | \r |
| 1401 | case PXEBC_VENDOR_TAG_CREDENTIAL_TYPES:\r |
| 1402 | \r |
| 1403 | VendorOption->CredTypeLen = PxeOption->Length;\r |
| 1404 | VendorOption->CredType = (UINT32 *) PxeOption->Data;\r |
| 1405 | break;\r |
| 1406 | \r |
| 1407 | case PXEBC_VENDOR_TAG_BOOT_ITEM:\r |
| 1408 | \r |
| e48e37fc |
1409 | CopyMem (&VendorOption->BootSrvType, PxeOption->Data, sizeof (VendorOption->BootSrvType));\r |
| 1410 | CopyMem (&VendorOption->BootSrvLayer, PxeOption->Data + 2, sizeof (VendorOption->BootSrvLayer));\r |
| dc361cc5 |
1411 | break;\r |
| 1412 | }\r |
| 1413 | \r |
| 1414 | SET_VENDOR_OPTION_BIT_MAP (BitMap, PxeOption->OpCode);\r |
| 1415 | \r |
| 1416 | if (PxeOption->OpCode == PXEBC_DHCP4_TAG_PAD) {\r |
| 1417 | Offset++;\r |
| 1418 | } else {\r |
| 1419 | Offset = (UINT8) (Offset + PxeOption->Length + 2);\r |
| 1420 | }\r |
| 1421 | \r |
| 1422 | PxeOption = (EFI_DHCP4_PACKET_OPTION *) (Dhcp4Option->Data + Offset);\r |
| 1423 | }\r |
| 1424 | \r |
| 1425 | //\r |
| 1426 | // FixMe, return falas if invalid of any vendor option\r |
| 1427 | //\r |
| 1428 | \r |
| 1429 | return TRUE;\r |
| 1430 | }\r |
| 1431 | \r |
| 1432 | \r |
| 1433 | /**\r |
| f737cfb9 |
1434 | This function display boot item detail.\r |
| dc361cc5 |
1435 | \r |
| f737cfb9 |
1436 | If the length of the boot item string over 70 Char, just display 70 Char. \r |
| 1437 | \r |
| 1438 | @param Str Pointer to a string (boot item string).\r |
| 1439 | @param Len The length of string.\r |
| dc361cc5 |
1440 | \r |
| f737cfb9 |
1441 | @return None.\r |
| dc361cc5 |
1442 | \r |
| 1443 | **/\r |
| 1444 | VOID\r |
| 1445 | PxeBcDisplayBootItem (\r |
| 1446 | IN UINT8 *Str,\r |
| 1447 | IN UINT8 Len\r |
| 1448 | )\r |
| 1449 | {\r |
| 1450 | UINT8 Tmp;\r |
| 1451 | \r |
| 1452 | Len = (UINT8) MIN (70, Len);\r |
| 1453 | Tmp = Str[Len];\r |
| 1454 | Str[Len] = 0;\r |
| 1455 | AsciiPrint ("%a \n", Str);\r |
| 1456 | Str[Len] = Tmp;\r |
| 1457 | }\r |
| 1458 | \r |
| 1459 | \r |
| 1460 | /**\r |
| f737cfb9 |
1461 | Choose the boot prompt.\r |
| dc361cc5 |
1462 | \r |
| f737cfb9 |
1463 | @param Private Pointer to PxeBc private data.\r |
| dc361cc5 |
1464 | \r |
| f737cfb9 |
1465 | @retval EFI_SUCCESS Select boot prompt done.\r |
| 1466 | @retval EFI_TIMEOUT Select boot prompt time out. \r |
| 1467 | @retval EFI_NOT_FOUND The proxy offer is not Pxe10.\r |
| 1468 | @retval EFI_ABORTED User cancel the operation.\r |
| 1469 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r |
| 1470 | \r |
| dc361cc5 |
1471 | **/\r |
| 1472 | EFI_STATUS\r |
| 1473 | PxeBcSelectBootPrompt (\r |
| 1474 | IN PXEBC_PRIVATE_DATA *Private\r |
| 1475 | )\r |
| 1476 | {\r |
| 1477 | PXEBC_CACHED_DHCP4_PACKET *Packet;\r |
| 1478 | PXEBC_VENDOR_OPTION *VendorOpt;\r |
| 1479 | EFI_EVENT TimeoutEvent;\r |
| 1480 | EFI_EVENT DescendEvent;\r |
| 1481 | EFI_INPUT_KEY InputKey;\r |
| 1482 | EFI_STATUS Status;\r |
| 1483 | UINT8 Timeout;\r |
| 1484 | UINT8 *Prompt;\r |
| 1485 | UINT8 PromptLen;\r |
| 1486 | INT32 SecCol;\r |
| 1487 | INT32 SecRow;\r |
| 1488 | \r |
| 1489 | TimeoutEvent = NULL;\r |
| 1490 | DescendEvent = NULL;\r |
| 1491 | \r |
| 1492 | if (Private->PxeBc.Mode->ProxyOfferReceived) {\r |
| 1493 | \r |
| 1494 | Packet = &Private->ProxyOffer;\r |
| 1495 | } else {\r |
| 1496 | \r |
| 1497 | Packet = &Private->Dhcp4Ack;\r |
| 1498 | }\r |
| 1499 | \r |
| 1500 | if (Packet->OfferType != DHCP4_PACKET_TYPE_PXE10) {\r |
| 1501 | return EFI_NOT_FOUND;\r |
| 1502 | }\r |
| 1503 | \r |
| 1504 | VendorOpt = &Packet->PxeVendorOption;\r |
| 1505 | \r |
| 1506 | if (!IS_VALID_BOOT_PROMPT (VendorOpt->BitMap)) {\r |
| 1507 | return EFI_SUCCESS;\r |
| 1508 | }\r |
| 1509 | \r |
| 1510 | Timeout = VendorOpt->MenuPrompt->Timeout;\r |
| 1511 | Prompt = VendorOpt->MenuPrompt->Prompt;\r |
| 1512 | PromptLen = (UINT8) (VendorOpt->MenuPromptLen - 1);\r |
| 1513 | \r |
| 1514 | if (Timeout == 0) {\r |
| 1515 | return EFI_SUCCESS;\r |
| 1516 | }\r |
| 1517 | \r |
| 1518 | if (Timeout == 255) {\r |
| 1519 | return EFI_TIMEOUT;\r |
| 1520 | }\r |
| 1521 | \r |
| 1522 | Status = gBS->CreateEvent (\r |
| 1523 | EVT_TIMER,\r |
| 1524 | TPL_CALLBACK,\r |
| 1525 | NULL,\r |
| 1526 | NULL,\r |
| 1527 | &TimeoutEvent\r |
| 1528 | );\r |
| 1529 | \r |
| 1530 | if (EFI_ERROR (Status)) {\r |
| 1531 | return Status;\r |
| 1532 | }\r |
| 1533 | \r |
| 1534 | Status = gBS->SetTimer (\r |
| 1535 | TimeoutEvent,\r |
| 1536 | TimerRelative,\r |
| 1537 | Timeout * TICKS_PER_SECOND\r |
| 1538 | );\r |
| 1539 | \r |
| 1540 | if (EFI_ERROR (Status)) {\r |
| 1541 | goto ON_EXIT;\r |
| 1542 | }\r |
| 1543 | \r |
| 1544 | Status = gBS->CreateEvent (\r |
| 1545 | EVT_TIMER,\r |
| 1546 | TPL_CALLBACK,\r |
| 1547 | NULL,\r |
| 1548 | NULL,\r |
| 1549 | &DescendEvent\r |
| 1550 | );\r |
| 1551 | \r |
| 1552 | if (EFI_ERROR (Status)) {\r |
| 1553 | goto ON_EXIT;\r |
| 1554 | }\r |
| 1555 | \r |
| 1556 | Status = gBS->SetTimer (\r |
| 1557 | DescendEvent,\r |
| 1558 | TimerPeriodic,\r |
| 1559 | TICKS_PER_SECOND\r |
| 1560 | );\r |
| 1561 | \r |
| 1562 | if (EFI_ERROR (Status)) {\r |
| 1563 | goto ON_EXIT;\r |
| 1564 | }\r |
| 1565 | \r |
| 1566 | SecCol = gST->ConOut->Mode->CursorColumn;\r |
| 1567 | SecRow = gST->ConOut->Mode->CursorRow;\r |
| 1568 | \r |
| 1569 | PxeBcDisplayBootItem (Prompt, PromptLen);\r |
| 1570 | \r |
| 1571 | gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);\r |
| 1572 | AsciiPrint ("(%d) ", Timeout--);\r |
| 1573 | \r |
| 1574 | while (EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {\r |
| 1575 | \r |
| 1576 | if (!EFI_ERROR (gBS->CheckEvent (DescendEvent))) {\r |
| 1577 | gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);\r |
| 1578 | AsciiPrint ("(%d) ", Timeout--);\r |
| 1579 | }\r |
| 1580 | \r |
| 1581 | if (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {\r |
| 1582 | \r |
| 1583 | gBS->Stall (10 * TICKS_PER_MS);\r |
| 1584 | continue;\r |
| 1585 | }\r |
| 1586 | \r |
| 1587 | if (InputKey.ScanCode == 0) {\r |
| 1588 | \r |
| 1589 | switch (InputKey.UnicodeChar) {\r |
| 1590 | case CTRL ('c'):\r |
| 1591 | Status = EFI_ABORTED;\r |
| 1592 | break;\r |
| 1593 | \r |
| 1594 | case CTRL ('m'):\r |
| 1595 | case 'm':\r |
| 1596 | case 'M':\r |
| 1597 | Status = EFI_TIMEOUT;\r |
| 1598 | break;\r |
| 1599 | \r |
| 1600 | default:\r |
| 1601 | continue;\r |
| 1602 | }\r |
| 1603 | } else {\r |
| 1604 | \r |
| 1605 | switch (InputKey.ScanCode) {\r |
| 1606 | case SCAN_F8:\r |
| 1607 | Status = EFI_TIMEOUT;\r |
| 1608 | break;\r |
| 1609 | \r |
| 1610 | case SCAN_ESC:\r |
| 1611 | Status = EFI_ABORTED;\r |
| 1612 | break;\r |
| 1613 | \r |
| 1614 | default:\r |
| 1615 | continue;\r |
| 1616 | }\r |
| 1617 | }\r |
| 1618 | \r |
| 1619 | break;\r |
| 1620 | }\r |
| 1621 | \r |
| 1622 | gST->ConOut->SetCursorPosition (gST->ConOut, 0 , SecRow + 1);\r |
| 1623 | \r |
| 1624 | ON_EXIT:\r |
| 1625 | \r |
| 1626 | if (DescendEvent != NULL) {\r |
| 1627 | gBS->CloseEvent (DescendEvent);\r |
| 1628 | }\r |
| 1629 | \r |
| 1630 | if (TimeoutEvent != NULL) {\r |
| 1631 | gBS->CloseEvent (TimeoutEvent);\r |
| 1632 | }\r |
| 1633 | \r |
| 1634 | return Status;\r |
| 1635 | }\r |
| 1636 | \r |
| 1637 | \r |
| 1638 | /**\r |
| f737cfb9 |
1639 | Select the boot menu.\r |
| dc361cc5 |
1640 | \r |
| f737cfb9 |
1641 | @param Private Pointer to PxeBc private data.\r |
| 1642 | @param Type The type of the menu.\r |
| 1643 | @param UseDefaultItem Use default item or not.\r |
| 1644 | \r |
| 1645 | @retval EFI_ABORTED User cancel operation.\r |
| 1646 | @retval EFI_SUCCESS Select the boot menu success.\r |
| 1647 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish. \r |
| dc361cc5 |
1648 | \r |
| 1649 | **/\r |
| 1650 | EFI_STATUS\r |
| 1651 | PxeBcSelectBootMenu (\r |
| 1652 | IN PXEBC_PRIVATE_DATA *Private,\r |
| 1653 | OUT UINT16 *Type,\r |
| 1654 | IN BOOLEAN UseDefaultItem\r |
| 1655 | )\r |
| 1656 | {\r |
| 1657 | PXEBC_CACHED_DHCP4_PACKET *Packet;\r |
| 1658 | PXEBC_VENDOR_OPTION *VendorOpt;\r |
| 1659 | EFI_INPUT_KEY InputKey;\r |
| 1660 | UINT8 MenuSize;\r |
| 1661 | UINT8 MenuNum;\r |
| 1662 | INT32 TopRow;\r |
| 1663 | UINT16 Select;\r |
| 1664 | UINT16 LastSelect;\r |
| 1665 | UINT8 Index;\r |
| 1666 | BOOLEAN Finish;\r |
| 1667 | CHAR8 Blank[70];\r |
| 1668 | PXEBC_BOOT_MENU_ENTRY *MenuItem;\r |
| 1669 | PXEBC_BOOT_MENU_ENTRY *MenuArray[PXEBC_MAX_MENU_NUM];\r |
| 1670 | \r |
| 1671 | Finish = FALSE;\r |
| 1672 | Select = 1;\r |
| 1673 | Index = 0;\r |
| 1674 | *Type = 0;\r |
| 1675 | \r |
| 1676 | if (Private->PxeBc.Mode->ProxyOfferReceived) {\r |
| 1677 | \r |
| 1678 | Packet = &Private->ProxyOffer;\r |
| 1679 | } else {\r |
| 1680 | \r |
| 1681 | Packet = &Private->Dhcp4Ack;\r |
| 1682 | }\r |
| 1683 | \r |
| 1684 | ASSERT (Packet->OfferType == DHCP4_PACKET_TYPE_PXE10);\r |
| 1685 | \r |
| 1686 | VendorOpt = &Packet->PxeVendorOption;\r |
| 1687 | \r |
| 1688 | if (!IS_VALID_BOOT_MENU (VendorOpt->BitMap)) {\r |
| 1689 | return EFI_SUCCESS;\r |
| 1690 | }\r |
| 1691 | \r |
| 1692 | SetMem (Blank, sizeof(Blank), ' ');\r |
| 1693 | \r |
| 1694 | MenuSize = VendorOpt->BootMenuLen;\r |
| 1695 | MenuItem = VendorOpt->BootMenu;\r |
| 1696 | \r |
| 1697 | while (MenuSize > 0) {\r |
| 1698 | MenuArray[Index] = MenuItem;\r |
| 1699 | MenuSize = (UINT8) (MenuSize - (MenuItem->DescLen + 3));\r |
| 1700 | MenuItem = (PXEBC_BOOT_MENU_ENTRY *) ((UINT8 *) MenuItem + MenuItem->DescLen + 3);\r |
| 1701 | Index++;\r |
| 1702 | }\r |
| 1703 | \r |
| 1704 | if (UseDefaultItem) {\r |
| 58bba940 |
1705 | CopyMem (Type, &MenuArray[0]->Type, sizeof (UINT16));\r |
| 1706 | *Type = NTOHS (*Type);\r |
| dc361cc5 |
1707 | return EFI_SUCCESS;\r |
| 1708 | }\r |
| 1709 | \r |
| 1710 | MenuNum = Index;\r |
| 1711 | \r |
| 1712 | for (Index = 0; Index < MenuNum; Index++) {\r |
| 1713 | PxeBcDisplayBootItem (MenuArray[Index]->DescStr, MenuArray[Index]->DescLen);\r |
| 1714 | }\r |
| 1715 | \r |
| 1716 | TopRow = gST->ConOut->Mode->CursorRow - MenuNum;\r |
| 1717 | \r |
| 1718 | do {\r |
| 1719 | //\r |
| 1720 | // highlight selected row\r |
| 1721 | //\r |
| 1722 | gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_BLACK, EFI_LIGHTGRAY));\r |
| 1723 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + Select);\r |
| 1724 | Blank[MenuArray[Select]->DescLen] = 0;\r |
| 1725 | AsciiPrint ("%a\r", Blank);\r |
| 1726 | PxeBcDisplayBootItem (MenuArray[Select]->DescStr, MenuArray[Select]->DescLen);\r |
| 1727 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);\r |
| 1728 | LastSelect = Select;\r |
| 1729 | \r |
| 1730 | while (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {\r |
| 1731 | gBS->Stall (10 * TICKS_PER_MS);\r |
| 1732 | }\r |
| 1733 | \r |
| 1734 | if (!InputKey.ScanCode) {\r |
| 1735 | switch (InputKey.UnicodeChar) {\r |
| 1736 | case CTRL ('c'):\r |
| 1737 | InputKey.ScanCode = SCAN_ESC;\r |
| 1738 | break;\r |
| 1739 | \r |
| 1740 | case CTRL ('j'): /* linefeed */\r |
| 1741 | case CTRL ('m'): /* return */\r |
| 1742 | Finish = TRUE;\r |
| 1743 | break;\r |
| 1744 | \r |
| 1745 | case CTRL ('i'): /* tab */\r |
| 1746 | case ' ':\r |
| 1747 | case 'd':\r |
| 1748 | case 'D':\r |
| 1749 | InputKey.ScanCode = SCAN_DOWN;\r |
| 1750 | break;\r |
| 1751 | \r |
| 1752 | case CTRL ('h'): /* backspace */\r |
| 1753 | case 'u':\r |
| 1754 | case 'U':\r |
| 1755 | InputKey.ScanCode = SCAN_UP;\r |
| 1756 | break;\r |
| 1757 | \r |
| 1758 | default:\r |
| 1759 | InputKey.ScanCode = 0;\r |
| 1760 | }\r |
| 1761 | }\r |
| 1762 | \r |
| 1763 | switch (InputKey.ScanCode) {\r |
| 1764 | case SCAN_LEFT:\r |
| 1765 | case SCAN_UP:\r |
| f737cfb9 |
1766 | if (Select > 0) {\r |
| dc361cc5 |
1767 | --Select;\r |
| 1768 | }\r |
| 1769 | \r |
| 1770 | break;\r |
| 1771 | \r |
| 1772 | case SCAN_DOWN:\r |
| 1773 | case SCAN_RIGHT:\r |
| 1774 | if (++Select == MenuNum) {\r |
| 1775 | --Select;\r |
| 1776 | }\r |
| 1777 | \r |
| 1778 | break;\r |
| 1779 | \r |
| 1780 | case SCAN_PAGE_UP:\r |
| 1781 | case SCAN_HOME:\r |
| 1782 | Select = 0;\r |
| 1783 | break;\r |
| 1784 | \r |
| 1785 | case SCAN_PAGE_DOWN:\r |
| 1786 | case SCAN_END:\r |
| 1787 | Select = (UINT16) (MenuNum - 1);\r |
| 1788 | break;\r |
| 1789 | \r |
| 1790 | case SCAN_ESC:\r |
| 1791 | return EFI_ABORTED;\r |
| 1792 | }\r |
| 1793 | \r |
| 1794 | /* unhighlight last selected row */\r |
| 1795 | gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));\r |
| 1796 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + LastSelect);\r |
| 1797 | Blank[MenuArray[LastSelect]->DescLen] = 0;\r |
| 1798 | AsciiPrint ("%a\r", Blank);\r |
| 1799 | PxeBcDisplayBootItem (MenuArray[LastSelect]->DescStr, MenuArray[LastSelect]->DescLen);\r |
| 1800 | gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);\r |
| 1801 | } while (!Finish);\r |
| 1802 | \r |
| 1803 | //\r |
| 1804 | // Swap the byte order\r |
| 1805 | //\r |
| 58bba940 |
1806 | CopyMem (Type, &MenuArray[Select]->Type, sizeof (UINT16));\r |
| 1807 | *Type = NTOHS (*Type);\r |
| dc361cc5 |
1808 | \r |
| 1809 | return EFI_SUCCESS;\r |
| 1810 | }\r |
| 1811 | \r |
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