| 772db4bb |
1 | /** @file\r |
| 2 | \r |
| 3 | Copyright (c) 2004 - 2007, Intel Corporation\r |
| 4 | All rights reserved. This program and the accompanying materials\r |
| 5 | are licensed and made available under the terms and conditions of the BSD License\r |
| 6 | which accompanies this distribution. The full text of the license may be found at\r |
| 7 | http://opensource.org/licenses/bsd-license.php\r |
| 8 | \r |
| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 11 | \r |
| 12 | Module Name:\r |
| 13 | \r |
| 14 | bc.c\r |
| 15 | \r |
| 16 | Abstract:\r |
| 17 | \r |
| 18 | \r |
| 19 | **/\r |
| 20 | \r |
| 21 | #include "Bc.h"\r |
| 22 | \r |
| 23 | //\r |
| 24 | //\r |
| 25 | //\r |
| 26 | EFI_STATUS\r |
| 27 | EFIAPI\r |
| 28 | PxeBcDriverSupported (\r |
| 29 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 30 | IN EFI_HANDLE Controller,\r |
| 31 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 32 | );\r |
| 33 | \r |
| 34 | EFI_STATUS\r |
| 35 | EFIAPI\r |
| 36 | PxeBcDriverStart (\r |
| 37 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 38 | IN EFI_HANDLE Controller,\r |
| 39 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 40 | );\r |
| 41 | \r |
| 42 | EFI_STATUS\r |
| 43 | EFIAPI\r |
| 44 | PxeBcDriverStop (\r |
| 45 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 46 | IN EFI_HANDLE Controller,\r |
| 47 | IN UINTN NumberOfChildren,\r |
| 48 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 49 | );\r |
| 50 | \r |
| 51 | extern\r |
| 52 | VOID\r |
| 53 | InitArpHeader (\r |
| 54 | VOID\r |
| 55 | );\r |
| 56 | extern\r |
| 57 | VOID\r |
| 58 | OptionsStrucInit (\r |
| 59 | VOID\r |
| 60 | );\r |
| 61 | \r |
| 62 | //\r |
| 63 | // helper routines\r |
| 64 | //\r |
| 65 | \r |
| 66 | /**\r |
| 67 | Convert number to ASCII value\r |
| 68 | \r |
| 69 | @param Number Numeric value to convert to decimal ASCII value.\r |
| 70 | @param Buffer Buffer to place ASCII version of the Number\r |
| 71 | @param Length Length of Buffer.\r |
| 72 | \r |
| 73 | @retval none none\r |
| 74 | \r |
| 75 | **/\r |
| 76 | VOID\r |
| 77 | CvtNum (\r |
| 78 | IN UINTN Number,\r |
| 79 | IN UINT8 *Buffer,\r |
| 80 | IN INTN Length\r |
| 81 | )\r |
| 82 | {\r |
| 83 | UINTN Remainder;\r |
| 84 | \r |
| 85 | while (Length--) {\r |
| 86 | Remainder = Number % 10;\r |
| 87 | Number /= 10;\r |
| 88 | Buffer[Length] = (UINT8) ('0' + Remainder);\r |
| 89 | }\r |
| 90 | }\r |
| 91 | \r |
| 92 | \r |
| 93 | /**\r |
| 94 | Convert number to decimal ASCII value at Buffer location\r |
| 95 | \r |
| 96 | @param Number Numeric value to convert to decimal ASCII value.\r |
| 97 | @param Buffer Buffer to place ASCII version of the Number\r |
| 98 | \r |
| 99 | @retval none none\r |
| 100 | \r |
| 101 | **/\r |
| 102 | VOID\r |
| 103 | UtoA10 (\r |
| 104 | IN UINTN Number,\r |
| 105 | IN UINT8 *Buffer\r |
| 106 | )\r |
| 107 | {\r |
| 108 | INTN Index;\r |
| 109 | UINT8 BuffArray[31];\r |
| 110 | \r |
| 111 | BuffArray[30] = 0;\r |
| 112 | CvtNum (Number, BuffArray, 30);\r |
| 113 | \r |
| 114 | for (Index = 0; Index < 30; ++Index) {\r |
| 115 | if (BuffArray[Index] != '0') {\r |
| 116 | break;\r |
| 117 | }\r |
| 118 | }\r |
| 119 | \r |
| 120 | CopyMem (Buffer, BuffArray + Index, 31 - Index);\r |
| 121 | }\r |
| 122 | \r |
| 123 | \r |
| 124 | /**\r |
| 125 | Convert ASCII numeric string to a UINTN value\r |
| 126 | \r |
| 127 | @param Number Numeric value to convert to decimal ASCII value.\r |
| 128 | @param Buffer Buffer to place ASCII version of the Number\r |
| 129 | \r |
| 130 | @retval Value UINTN value of the ASCII string.\r |
| 131 | \r |
| 132 | **/\r |
| 133 | UINTN\r |
| 134 | AtoU (\r |
| 135 | IN UINT8 *Buffer\r |
| 136 | )\r |
| 137 | {\r |
| 138 | UINTN Value;\r |
| 139 | INT8 Character;\r |
| 140 | \r |
| 141 | Value = 0;\r |
| 142 | Character = *Buffer++;\r |
| 143 | do {\r |
| 144 | Value = Value * 10 + Character - '0';\r |
| 145 | Character = *Buffer++;\r |
| 146 | } while (Character);\r |
| 147 | \r |
| 148 | return Value;\r |
| 149 | }\r |
| 150 | \r |
| 151 | \r |
| 152 | /**\r |
| 153 | Convert ASCII numeric string to a UINTN value\r |
| 154 | \r |
| 155 | @param Number Numeric value to convert to decimal ASCII value.\r |
| 156 | @param Buffer Buffer to place ASCII version of the Number\r |
| 157 | \r |
| 158 | @retval Value UINTN value of the ASCII string.\r |
| 159 | \r |
| 160 | **/\r |
| 161 | UINT64\r |
| 162 | AtoU64 (\r |
| 163 | IN UINT8 *Buffer\r |
| 164 | )\r |
| 165 | {\r |
| 166 | UINT64 Value;\r |
| 167 | UINT8 Character;\r |
| 168 | \r |
| 169 | Value = 0;\r |
| 170 | while ((Character = *Buffer++) != '\0') {\r |
| 171 | Value = MultU64x32 (Value, 10) + (Character - '0');\r |
| 172 | }\r |
| 173 | \r |
| 174 | return Value;\r |
| 175 | }\r |
| 176 | //\r |
| 177 | // random number generator\r |
| 178 | //\r |
| 179 | #define RANDOM_MULTIPLIER 2053\r |
| 180 | #define RANDOM_ADD_IN_VALUE 19\r |
| 181 | \r |
| 182 | VOID\r |
| 183 | SeedRandom (\r |
| 184 | IN PXE_BASECODE_DEVICE *Private,\r |
| 185 | IN UINT16 InitialSeed\r |
| 186 | )\r |
| 187 | /*++\r |
| 188 | \r |
| 189 | Routine Description:\r |
| 190 | Initialize the Seed for the random number generator\r |
| 191 | \r |
| 192 | Arguments:\r |
| 193 | \r |
| 194 | Returns:\r |
| 195 | none -\r |
| 196 | \r |
| 197 | --*/\r |
| 198 | {\r |
| 199 | if (Private != NULL) {\r |
| 200 | Private->RandomSeed = InitialSeed;\r |
| 201 | }\r |
| 202 | }\r |
| 203 | \r |
| 204 | \r |
| 205 | /**\r |
| 206 | Generate and return a pseudo-random number\r |
| 207 | \r |
| 208 | \r |
| 209 | @retval Number UINT16 random number\r |
| 210 | \r |
| 211 | **/\r |
| 212 | UINT16\r |
| 213 | Random (\r |
| 214 | IN PXE_BASECODE_DEVICE *Private\r |
| 215 | )\r |
| 216 | {\r |
| 217 | UINTN Number;\r |
| 218 | \r |
| 219 | if (Private != NULL) {\r |
| 220 | Number = -(INTN) Private->RandomSeed * RANDOM_MULTIPLIER + RANDOM_ADD_IN_VALUE;\r |
| 221 | \r |
| 222 | return Private->RandomSeed = (UINT16) Number;\r |
| 223 | } else {\r |
| 224 | return 0;\r |
| 225 | }\r |
| 226 | }\r |
| 227 | //\r |
| 228 | // calculate the internet checksum (RFC 1071)\r |
| 229 | // return 16 bit ones complement of ones complement sum of 16 bit words\r |
| 230 | //\r |
| 231 | \r |
| 232 | /**\r |
| 233 | Calculate the internet checksum (see RFC 1071)\r |
| 234 | \r |
| 235 | @param Packet Buffer which contains the data to be checksummed\r |
| 236 | @param Length Length to be checksummed\r |
| 237 | \r |
| 238 | @retval Checksum Returns the 16 bit ones complement of ones\r |
| 239 | complement sum of 16 bit words\r |
| 240 | \r |
| 241 | **/\r |
| 242 | UINT16\r |
| 243 | IpChecksum (\r |
| 244 | IN UINT16 *Packet,\r |
| 245 | IN UINTN Length\r |
| 246 | )\r |
| 247 | {\r |
| 248 | UINT32 Sum;\r |
| 249 | UINT8 Odd;\r |
| 250 | \r |
| 251 | Sum = 0;\r |
| 252 | Odd = (UINT8) (Length & 1);\r |
| 253 | Length >>= 1;\r |
| 254 | while (Length--) {\r |
| 255 | Sum += *Packet++;\r |
| 256 | }\r |
| 257 | \r |
| 258 | if (Odd) {\r |
| 259 | Sum += *(UINT8 *) Packet;\r |
| 260 | }\r |
| 261 | \r |
| 262 | Sum = (Sum & 0xffff) + (Sum >> 16);\r |
| 263 | //\r |
| 264 | // in case above carried\r |
| 265 | //\r |
| 266 | Sum += Sum >> 16;\r |
| 267 | \r |
| 268 | return (UINT16) (~ (UINT16) Sum);\r |
| 269 | }\r |
| 270 | \r |
| 271 | \r |
| 272 | /**\r |
| 273 | Calculate the internet checksum (see RFC 1071)\r |
| 274 | on a non contiguous header and data\r |
| 275 | \r |
| 276 | @param Header Buffer which contains the data to be checksummed\r |
| 277 | @param HeaderLen Length to be checksummed\r |
| 278 | @param Message Buffer which contains the data to be checksummed\r |
| 279 | @param MessageLen Length to be checksummed\r |
| 280 | \r |
| 281 | @retval Checksum Returns the 16 bit ones complement of ones\r |
| 282 | complement sum of 16 bit words\r |
| 283 | \r |
| 284 | **/\r |
| 285 | UINT16\r |
| 286 | IpChecksum2 (\r |
| 287 | IN UINT16 *Header,\r |
| 288 | IN UINTN HeaderLen,\r |
| 289 | IN UINT16 *Message,\r |
| 290 | IN UINTN MessageLen\r |
| 291 | )\r |
| 292 | {\r |
| 293 | UINT32 Sum;\r |
| 294 | \r |
| 295 | Sum = (UINT16)~IpChecksum (Header, HeaderLen) + (UINT16)~IpChecksum (Message, MessageLen);\r |
| 296 | \r |
| 297 | //\r |
| 298 | // in case above carried\r |
| 299 | //\r |
| 300 | Sum += Sum >> 16;\r |
| 301 | \r |
| 302 | return (UINT16) (~ (UINT16) Sum);\r |
| 303 | }\r |
| 304 | \r |
| 305 | \r |
| 306 | /**\r |
| 307 | Adjust the internet checksum (see RFC 1071) on a single word update.\r |
| 308 | \r |
| 309 | @param OldChkSum Checksum previously calculated\r |
| 310 | @param OldWord Value\r |
| 311 | @param NewWord New Value\r |
| 312 | \r |
| 313 | @retval Checksum Returns the 16 bit ones complement of ones\r |
| 314 | complement sum of 16 bit words\r |
| 315 | \r |
| 316 | **/\r |
| 317 | UINT16\r |
| 318 | UpdateChecksum (\r |
| 319 | IN UINT16 OldChksum,\r |
| 320 | IN UINT16 OldWord,\r |
| 321 | IN UINT16 NewWord\r |
| 322 | )\r |
| 323 | {\r |
| 324 | UINT32 sum;\r |
| 325 | \r |
| 326 | sum = ~OldChksum + NewWord - OldWord;\r |
| 327 | //\r |
| 328 | // in case above carried\r |
| 329 | //\r |
| 330 | sum += sum >> 16;\r |
| 331 | return (UINT16) (~ (UINT16) sum);\r |
| 332 | }\r |
| 333 | \r |
| 334 | \r |
| 335 | /**\r |
| 336 | See if a callback is in play\r |
| 337 | \r |
| 338 | @param Private Pointer to Pxe BaseCode Protocol\r |
| 339 | \r |
| 340 | @retval 0 Callbacks are active on the handle\r |
| 341 | @retval 1 Callbacks are not active on the handle\r |
| 342 | \r |
| 343 | **/\r |
| 344 | STATIC\r |
| 345 | BOOLEAN\r |
| 346 | SetMakeCallback (\r |
| 347 | IN PXE_BASECODE_DEVICE *Private\r |
| 348 | )\r |
| 349 | {\r |
| 350 | Private->EfiBc.Mode->MakeCallbacks = (BOOLEAN) (gBS->HandleProtocol (\r |
| 351 | Private->Handle,\r |
| 352 | &gEfiPxeBaseCodeCallbackProtocolGuid,\r |
| 353 | (VOID *) &Private->CallbackProtocolPtr\r |
| 354 | ) == EFI_SUCCESS);\r |
| 355 | \r |
| 356 | DEBUG (\r |
| 357 | (DEBUG_INFO,\r |
| 358 | "\nMode->MakeCallbacks == %d ",\r |
| 359 | Private->EfiBc.Mode->MakeCallbacks)\r |
| 360 | );\r |
| 361 | \r |
| 362 | DEBUG (\r |
| 363 | (DEBUG_INFO,\r |
| 364 | "\nPrivate->CallbackProtocolPtr == %xh ",\r |
| 365 | Private->CallbackProtocolPtr)\r |
| 366 | );\r |
| 367 | \r |
| 368 | if (Private->CallbackProtocolPtr != NULL) {\r |
| 369 | DEBUG (\r |
| 370 | (DEBUG_INFO,\r |
| 371 | "\nCallbackProtocolPtr->Revision = %xh ",\r |
| 372 | Private->CallbackProtocolPtr->Revision)\r |
| 373 | );\r |
| 374 | \r |
| 375 | DEBUG (\r |
| 376 | (DEBUG_INFO,\r |
| 377 | "\nCallbackProtocolPtr->Callback = %xh ",\r |
| 378 | Private->CallbackProtocolPtr->Callback)\r |
| 379 | );\r |
| 380 | }\r |
| 381 | \r |
| 382 | return Private->EfiBc.Mode->MakeCallbacks;\r |
| 383 | }\r |
| 384 | \r |
| 385 | /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */\r |
| 386 | \r |
| 387 | /**\r |
| 388 | Routine which does an SNP->Receive over a timeout period and doing callbacks\r |
| 389 | \r |
| 390 | @param Private Pointer to Pxe BaseCode Protocol\r |
| 391 | @param Function What PXE function to callback\r |
| 392 | @param TimeoutEvent Timer event that will trigger when we have waited\r |
| 393 | too long for an incoming packet\r |
| 394 | @param HeaderSizePtr Pointer to the size of the Header size\r |
| 395 | @param BufferSizePtr Pointer to the size of the Buffer size\r |
| 396 | @param ProtocolPtr The protocol to sniff for (namely, UDP/TCP/etc)\r |
| 397 | \r |
| 398 | @retval 0 Something was returned\r |
| 399 | @retval !0 Like there was nothing to receive\r |
| 400 | (EFI_TIMEOUT/NOT_READY)\r |
| 401 | \r |
| 402 | **/\r |
| 403 | EFI_STATUS\r |
| 404 | WaitForReceive (\r |
| 405 | IN PXE_BASECODE_DEVICE *Private,\r |
| 406 | IN EFI_PXE_BASE_CODE_FUNCTION Function,\r |
| 407 | IN EFI_EVENT TimeoutEvent,\r |
| 408 | IN OUT UINTN *HeaderSizePtr,\r |
| 409 | IN OUT UINTN *BufferSizePtr,\r |
| 410 | IN OUT UINT16 *ProtocolPtr\r |
| 411 | )\r |
| 412 | {\r |
| 413 | EFI_SIMPLE_NETWORK_PROTOCOL *SnpPtr;\r |
| 414 | EFI_PXE_CALLBACK CallbackPtr;\r |
| 415 | EFI_STATUS StatCode;\r |
| 416 | EFI_EVENT CallbackEvent;\r |
| 417 | \r |
| 418 | //\r |
| 419 | // Initialize pointer to SNP interface\r |
| 420 | //\r |
| 421 | SnpPtr = Private->SimpleNetwork;\r |
| 422 | \r |
| 423 | //\r |
| 424 | // Initialize pointer to PxeBc callback routine - if any\r |
| 425 | //\r |
| 426 | CallbackPtr = (Private->EfiBc.Mode->MakeCallbacks) ? Private->CallbackProtocolPtr->Callback : NULL;\r |
| 427 | \r |
| 428 | //\r |
| 429 | // Create callback event and set timer\r |
| 430 | //\r |
| 431 | StatCode = gBS->CreateEvent (\r |
| 432 | EVT_TIMER,\r |
| 433 | TPL_CALLBACK,\r |
| 434 | NULL,\r |
| 435 | NULL,\r |
| 436 | &CallbackEvent\r |
| 437 | );\r |
| 438 | \r |
| 439 | if (EFI_ERROR (StatCode)) {\r |
| 440 | return EFI_DEVICE_ERROR;\r |
| 441 | }\r |
| 442 | \r |
| 443 | //\r |
| 444 | // every 100 milliseconds\r |
| 445 | //\r |
| 446 | StatCode = gBS->SetTimer (\r |
| 447 | CallbackEvent,\r |
| 448 | TimerPeriodic,\r |
| 449 | 1000000\r |
| 450 | );\r |
| 451 | \r |
| 452 | if (EFI_ERROR (StatCode)) {\r |
| 453 | gBS->CloseEvent (CallbackEvent);\r |
| 454 | return EFI_DEVICE_ERROR;\r |
| 455 | }\r |
| 456 | //\r |
| 457 | // Loop until a packet is received or a receive error is detected or\r |
| 458 | // a callback abort is detected or a timeout event occurs.\r |
| 459 | //\r |
| 460 | for (;;)\r |
| 461 | {\r |
| 462 | //\r |
| 463 | // Poll for received packet.\r |
| 464 | //\r |
| 465 | *BufferSizePtr = BUFFER_ALLOCATE_SIZE;\r |
| 466 | \r |
| 467 | StatCode = SnpPtr->Receive (\r |
| 468 | SnpPtr,\r |
| 469 | HeaderSizePtr,\r |
| 470 | BufferSizePtr,\r |
| 471 | Private->ReceiveBufferPtr,\r |
| 472 | 0,\r |
| 473 | 0,\r |
| 474 | ProtocolPtr\r |
| 475 | );\r |
| 476 | \r |
| 477 | if (!EFI_ERROR (StatCode)) {\r |
| 478 | //\r |
| 479 | // Packet was received. Make received callback then return.\r |
| 480 | //\r |
| 481 | if (CallbackPtr != NULL) {\r |
| 482 | StatCode = CallbackPtr (\r |
| 483 | Private->CallbackProtocolPtr,\r |
| 484 | Function,\r |
| 485 | TRUE,\r |
| 486 | (UINT32) *BufferSizePtr,\r |
| 487 | (EFI_PXE_BASE_CODE_PACKET *) Private->ReceiveBufferPtr\r |
| 488 | );\r |
| 489 | \r |
| 490 | if (StatCode != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r |
| 491 | StatCode = EFI_ABORTED;\r |
| 492 | } else {\r |
| 493 | StatCode = EFI_SUCCESS;\r |
| 494 | }\r |
| 495 | }\r |
| 496 | \r |
| 497 | break;\r |
| 498 | }\r |
| 499 | \r |
| 500 | if (StatCode != EFI_NOT_READY) {\r |
| 501 | break;\r |
| 502 | }\r |
| 503 | //\r |
| 504 | // Check for callback event.\r |
| 505 | //\r |
| 506 | if (!EFI_ERROR (gBS->CheckEvent (CallbackEvent))) {\r |
| 507 | //\r |
| 508 | // Make periodic callback if callback pointer is initialized.\r |
| 509 | //\r |
| 510 | if (CallbackPtr != NULL) {\r |
| 511 | StatCode = CallbackPtr (\r |
| 512 | Private->CallbackProtocolPtr,\r |
| 513 | Function,\r |
| 514 | FALSE,\r |
| 515 | 0,\r |
| 516 | NULL\r |
| 517 | );\r |
| 518 | \r |
| 519 | //\r |
| 520 | // Abort if directed to by callback routine.\r |
| 521 | //\r |
| 522 | if (StatCode != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r |
| 523 | StatCode = EFI_ABORTED;\r |
| 524 | break;\r |
| 525 | }\r |
| 526 | }\r |
| 527 | }\r |
| 528 | //\r |
| 529 | // Check for timeout event.\r |
| 530 | //\r |
| 531 | if (TimeoutEvent == 0) {\r |
| 532 | StatCode = EFI_TIMEOUT;\r |
| 533 | break;\r |
| 534 | }\r |
| 535 | \r |
| 536 | if (!EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {\r |
| 537 | StatCode = EFI_TIMEOUT;\r |
| 538 | break;\r |
| 539 | }\r |
| 540 | //\r |
| 541 | // Check IGMP timer events.\r |
| 542 | //\r |
| 543 | IgmpCheckTimers (Private);\r |
| 544 | }\r |
| 545 | \r |
| 546 | gBS->CloseEvent (CallbackEvent);\r |
| 547 | \r |
| 548 | return StatCode;\r |
| 549 | }\r |
| 550 | \r |
| 551 | \r |
| 552 | /**\r |
| 553 | Routine which does an SNP->Transmit of a buffer\r |
| 554 | \r |
| 555 | @param Private Pointer to Pxe BaseCode Protocol\r |
| 556 | @param HeaderPtr Pointer to the buffer\r |
| 557 | @param PacketPtr Pointer to the packet to send\r |
| 558 | @param PacketLen The length of the entire packet to send\r |
| 559 | @param HardwareAddr Pointer to the MAC address of the destination\r |
| 560 | @param MediaProtocol What type of frame to create (RFC 1700) - IE.\r |
| 561 | Ethernet\r |
| 562 | @param Function What PXE function to callback\r |
| 563 | \r |
| 564 | @retval 0 Something was sent\r |
| 565 | @retval !0 An error was encountered during sending of a packet\r |
| 566 | \r |
| 567 | **/\r |
| 568 | EFI_STATUS\r |
| 569 | SendPacket (\r |
| 570 | PXE_BASECODE_DEVICE *Private,\r |
| 571 | VOID *HeaderPtr,\r |
| 572 | VOID *PacketPtr,\r |
| 573 | INTN PacketLen,\r |
| 574 | VOID *HardwareAddr,\r |
| 575 | UINT16 MediaProtocol,\r |
| 576 | IN EFI_PXE_BASE_CODE_FUNCTION Function\r |
| 577 | )\r |
| 578 | {\r |
| 579 | EFI_SIMPLE_NETWORK_PROTOCOL *SnpPtr;\r |
| 580 | EFI_SIMPLE_NETWORK_MODE *SnpModePtr;\r |
| 581 | EFI_PXE_CALLBACK CallbackPtr;\r |
| 582 | EFI_STATUS StatCode;\r |
| 583 | EFI_EVENT TimeoutEvent;\r |
| 584 | UINT32 IntStatus;\r |
| 585 | VOID *TxBuf;\r |
| 586 | \r |
| 587 | //\r |
| 588 | //\r |
| 589 | //\r |
| 590 | CallbackPtr = Private->EfiBc.Mode->MakeCallbacks ? Private->CallbackProtocolPtr->Callback : 0;\r |
| 591 | \r |
| 592 | SnpPtr = Private->SimpleNetwork;\r |
| 593 | SnpModePtr = SnpPtr->Mode;\r |
| 594 | \r |
| 595 | //\r |
| 596 | // clear prior interrupt status\r |
| 597 | //\r |
| 598 | StatCode = SnpPtr->GetStatus (SnpPtr, &IntStatus, 0);\r |
| 599 | \r |
| 600 | if (EFI_ERROR (StatCode)) {\r |
| 601 | DEBUG (\r |
| 602 | (DEBUG_WARN,\r |
| 603 | "\nSendPacket() Exit #1 %xh (%r)",\r |
| 604 | StatCode,\r |
| 605 | StatCode)\r |
| 606 | );\r |
| 607 | return StatCode;\r |
| 608 | }\r |
| 609 | \r |
| 610 | Private->DidTransmit = FALSE;\r |
| 611 | \r |
| 612 | if (CallbackPtr != NULL) {\r |
| 613 | if (CallbackPtr (\r |
| 614 | Private->CallbackProtocolPtr,\r |
| 615 | Function,\r |
| 616 | FALSE,\r |
| 617 | (UINT32) PacketLen,\r |
| 618 | PacketPtr\r |
| 619 | ) != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r |
| 620 | DEBUG (\r |
| 621 | (DEBUG_WARN,\r |
| 622 | "\nSendPacket() Exit #2 %xh (%r)",\r |
| 623 | EFI_ABORTED,\r |
| 624 | EFI_ABORTED)\r |
| 625 | );\r |
| 626 | return EFI_ABORTED;\r |
| 627 | }\r |
| 628 | }\r |
| 629 | //\r |
| 630 | // put packet in transmit queue\r |
| 631 | // headersize should be zero if not filled in\r |
| 632 | //\r |
| 633 | StatCode = gBS->CreateEvent (\r |
| 634 | EVT_TIMER,\r |
| 635 | TPL_CALLBACK,\r |
| 636 | NULL,\r |
| 637 | NULL,\r |
| 638 | &TimeoutEvent\r |
| 639 | );\r |
| 640 | \r |
| 641 | if (EFI_ERROR (StatCode)) {\r |
| 642 | DEBUG (\r |
| 643 | (DEBUG_ERROR,\r |
| 644 | "Could not create transmit timeout event. %r\n",\r |
| 645 | StatCode)\r |
| 646 | );\r |
| 647 | return EFI_DEVICE_ERROR;\r |
| 648 | }\r |
| 649 | \r |
| 650 | //\r |
| 651 | // 5 milliseconds\r |
| 652 | //\r |
| 653 | StatCode = gBS->SetTimer (\r |
| 654 | TimeoutEvent,\r |
| 655 | TimerRelative,\r |
| 656 | 50000\r |
| 657 | );\r |
| 658 | \r |
| 659 | if (EFI_ERROR (StatCode)) {\r |
| 660 | DEBUG (\r |
| 661 | (DEBUG_ERROR,\r |
| 662 | "Could not set transmit timeout event timer. %r\n",\r |
| 663 | StatCode)\r |
| 664 | );\r |
| 665 | gBS->CloseEvent (TimeoutEvent);\r |
| 666 | return EFI_DEVICE_ERROR;\r |
| 667 | }\r |
| 668 | \r |
| 669 | for (;;) {\r |
| 670 | StatCode = SnpPtr->Transmit (\r |
| 671 | SnpPtr,\r |
| 672 | (UINTN) SnpPtr->Mode->MediaHeaderSize,\r |
| 673 | (UINTN) (PacketLen + SnpPtr->Mode->MediaHeaderSize),\r |
| 674 | HeaderPtr,\r |
| 675 | &SnpModePtr->CurrentAddress,\r |
| 676 | (EFI_MAC_ADDRESS *) HardwareAddr,\r |
| 677 | &MediaProtocol\r |
| 678 | );\r |
| 679 | \r |
| 680 | if (StatCode != EFI_NOT_READY) {\r |
| 681 | break;\r |
| 682 | }\r |
| 683 | \r |
| 684 | if (!EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {\r |
| 685 | StatCode = EFI_TIMEOUT;\r |
| 686 | break;\r |
| 687 | }\r |
| 688 | }\r |
| 689 | \r |
| 690 | gBS->CloseEvent (TimeoutEvent);\r |
| 691 | \r |
| 692 | if (EFI_ERROR (StatCode)) {\r |
| 693 | DEBUG (\r |
| 694 | (DEBUG_WARN,\r |
| 695 | "\nSendPacket() Exit #3 %xh (%r)",\r |
| 696 | StatCode,\r |
| 697 | StatCode)\r |
| 698 | );\r |
| 699 | return StatCode;\r |
| 700 | }\r |
| 701 | //\r |
| 702 | // remove transmit buffer from snp's unused queue\r |
| 703 | // done this way in case someday things are buffered and we don't get it back\r |
| 704 | // immediately\r |
| 705 | //\r |
| 706 | StatCode = gBS->CreateEvent (\r |
| 707 | EVT_TIMER,\r |
| 708 | TPL_CALLBACK,\r |
| 709 | NULL,\r |
| 710 | NULL,\r |
| 711 | &TimeoutEvent\r |
| 712 | );\r |
| 713 | \r |
| 714 | if (EFI_ERROR (StatCode)) {\r |
| 715 | DEBUG (\r |
| 716 | (DEBUG_ERROR,\r |
| 717 | "Could not create transmit status timeout event. %r\n",\r |
| 718 | StatCode)\r |
| 719 | );\r |
| 720 | return EFI_DEVICE_ERROR;\r |
| 721 | }\r |
| 722 | \r |
| 723 | //\r |
| 724 | // 5 milliseconds\r |
| 725 | //\r |
| 726 | StatCode = gBS->SetTimer (\r |
| 727 | TimeoutEvent,\r |
| 728 | TimerRelative,\r |
| 729 | 50000\r |
| 730 | );\r |
| 731 | \r |
| 732 | if (EFI_ERROR (StatCode)) {\r |
| 733 | DEBUG (\r |
| 734 | (DEBUG_ERROR,\r |
| 735 | "Could not set transmit status timeout event timer. %r\n",\r |
| 736 | StatCode)\r |
| 737 | );\r |
| 738 | gBS->CloseEvent (TimeoutEvent);\r |
| 739 | return EFI_DEVICE_ERROR;\r |
| 740 | }\r |
| 741 | \r |
| 742 | for (;;) {\r |
| 743 | StatCode = SnpPtr->GetStatus (SnpPtr, &IntStatus, &TxBuf);\r |
| 744 | \r |
| 745 | if (EFI_ERROR (StatCode)) {\r |
| 746 | DEBUG (\r |
| 747 | (DEBUG_WARN,\r |
| 748 | "\nSendPacket() Exit #4 %xh (%r)",\r |
| 749 | StatCode,\r |
| 750 | StatCode)\r |
| 751 | );\r |
| 752 | break;\r |
| 753 | }\r |
| 754 | \r |
| 755 | if (IntStatus & EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT) {\r |
| 756 | Private->DidTransmit = TRUE;\r |
| 757 | }\r |
| 758 | \r |
| 759 | if (TxBuf != NULL) {\r |
| 760 | break;\r |
| 761 | }\r |
| 762 | \r |
| 763 | if (!EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {\r |
| 764 | StatCode = EFI_TIMEOUT;\r |
| 765 | break;\r |
| 766 | }\r |
| 767 | }\r |
| 768 | \r |
| 769 | gBS->CloseEvent (TimeoutEvent);\r |
| 770 | \r |
| 771 | return StatCode;\r |
| 772 | }\r |
| 773 | //\r |
| 774 | //\r |
| 775 | //\r |
| 776 | \r |
| 777 | /**\r |
| 778 | \r |
| 779 | \r |
| 780 | **/\r |
| 781 | EFI_BIS_PROTOCOL *\r |
| 782 | PxebcBisStart (\r |
| 783 | IN PXE_BASECODE_DEVICE *Private,\r |
| 784 | OUT BIS_APPLICATION_HANDLE *BisAppHandle,\r |
| 785 | OUT OPTIONAL EFI_BIS_DATA **BisDataSigInfo\r |
| 786 | )\r |
| 787 | {\r |
| 788 | EFI_STATUS EfiStatus;\r |
| 789 | EFI_HANDLE BisHandleBuffer;\r |
| 790 | UINTN BisHandleCount;\r |
| 791 | EFI_BIS_PROTOCOL *BisPtr;\r |
| 792 | EFI_BIS_VERSION BisInterfaceVersion;\r |
| 793 | BOOLEAN BisCheckFlag;\r |
| 794 | \r |
| 795 | BisHandleCount = sizeof (EFI_HANDLE);\r |
| 796 | BisCheckFlag = FALSE;\r |
| 797 | \r |
| 798 | //\r |
| 799 | // Locate BIS protocol handle (if present).\r |
| 800 | // If BIS protocol handle is not found, return NULL.\r |
| 801 | //\r |
| 802 | DEBUG ((DEBUG_INFO, "\ngBS->LocateHandle() "));\r |
| 803 | \r |
| 804 | EfiStatus = gBS->LocateHandle (\r |
| 805 | ByProtocol,\r |
| 806 | &gEfiBisProtocolGuid,\r |
| 807 | NULL,\r |
| 808 | &BisHandleCount,\r |
| 809 | &BisHandleBuffer\r |
| 810 | );\r |
| 811 | \r |
| 812 | if (EFI_ERROR (EfiStatus)) {\r |
| 813 | //\r |
| 814 | // Any error means that there is no BIS.\r |
| 815 | // Note - It could mean that there are more than\r |
| 816 | // one BIS protocols installed, but that scenario\r |
| 817 | // is not yet supported.\r |
| 818 | //\r |
| 819 | DEBUG (\r |
| 820 | (DEBUG_WARN,\r |
| 821 | "\nPxebcBisStart()""\n gBS->LocateHandle() %r (%xh)\n",\r |
| 822 | EfiStatus,\r |
| 823 | EfiStatus)\r |
| 824 | );\r |
| 825 | \r |
| 826 | return NULL;\r |
| 827 | }\r |
| 828 | \r |
| 829 | if (BisHandleCount != sizeof BisHandleBuffer) {\r |
| 830 | //\r |
| 831 | // This really should never happen, but I am paranoid.\r |
| 832 | //\r |
| 833 | DEBUG (\r |
| 834 | (DEBUG_NET,\r |
| 835 | "\nPxebcBisStart() BisHandleCount != %d\n",\r |
| 836 | sizeof BisHandleBuffer)\r |
| 837 | );\r |
| 838 | \r |
| 839 | return NULL;\r |
| 840 | }\r |
| 841 | \r |
| 842 | DEBUG ((DEBUG_INFO, "BIS handle found."));\r |
| 843 | \r |
| 844 | //\r |
| 845 | // Locate BIS protocol interface.\r |
| 846 | // If the BIS protocol interface cannot be found, return NULL.\r |
| 847 | //\r |
| 848 | DEBUG ((DEBUG_INFO, "\ngBS->HandleProtocol() "));\r |
| 849 | \r |
| 850 | EfiStatus = gBS->HandleProtocol (\r |
| 851 | BisHandleBuffer,\r |
| 852 | &gEfiBisProtocolGuid,\r |
| 853 | (VOID **) &BisPtr\r |
| 854 | );\r |
| 855 | \r |
| 856 | if (EFI_ERROR (EfiStatus)) {\r |
| 857 | DEBUG (\r |
| 858 | (DEBUG_WARN,\r |
| 859 | "\nPxebcBisStart()""\n gBS->HandleProtocol() %r (%xh)\n",\r |
| 860 | EfiStatus,\r |
| 861 | EfiStatus)\r |
| 862 | );\r |
| 863 | \r |
| 864 | return NULL;\r |
| 865 | }\r |
| 866 | \r |
| 867 | if (BisPtr == NULL) {\r |
| 868 | //\r |
| 869 | // This really should never happen.\r |
| 870 | //\r |
| 871 | DEBUG (\r |
| 872 | (DEBUG_NET,\r |
| 873 | "\nPxebcBisStart()""\n gBS->HandleProtocoL() ""BIS protocol interface pointer is NULL!\n")\r |
| 874 | );\r |
| 875 | \r |
| 876 | return NULL;\r |
| 877 | }\r |
| 878 | \r |
| 879 | DEBUG ((DEBUG_INFO, "BIS protocol interface found."));\r |
| 880 | \r |
| 881 | //\r |
| 882 | // Check that all of the BIS API function pointers are not NULL.\r |
| 883 | //\r |
| 884 | if (BisPtr->Initialize == NULL ||\r |
| 885 | BisPtr->Shutdown == NULL ||\r |
| 886 | BisPtr->Free == NULL ||\r |
| 887 | BisPtr->GetBootObjectAuthorizationCertificate == NULL ||\r |
| 888 | BisPtr->GetBootObjectAuthorizationCheckFlag == NULL ||\r |
| 889 | BisPtr->GetBootObjectAuthorizationUpdateToken == NULL ||\r |
| 890 | BisPtr->GetSignatureInfo == NULL ||\r |
| 891 | BisPtr->UpdateBootObjectAuthorization == NULL ||\r |
| 892 | BisPtr->VerifyBootObject == NULL ||\r |
| 893 | BisPtr->VerifyObjectWithCredential == NULL\r |
| 894 | ) {\r |
| 895 | DEBUG (\r |
| 896 | (\r |
| 897 | DEBUG_NET,\r |
| 898 | "\nPxebcBisStart()""\n BIS protocol interface is invalid."\r |
| 899 | "\n At least one BIS protocol function pointer is NULL.\n"\r |
| 900 | )\r |
| 901 | );\r |
| 902 | \r |
| 903 | return NULL;\r |
| 904 | }\r |
| 905 | //\r |
| 906 | // Initialize BIS.\r |
| 907 | // If BIS does not initialize, return NULL.\r |
| 908 | //\r |
| 909 | DEBUG ((DEBUG_INFO, "\nBisPtr->Initialize() "));\r |
| 910 | \r |
| 911 | BisInterfaceVersion.Major = BIS_VERSION_1;\r |
| 912 | \r |
| 913 | EfiStatus = BisPtr->Initialize (\r |
| 914 | BisPtr,\r |
| 915 | BisAppHandle,\r |
| 916 | &BisInterfaceVersion,\r |
| 917 | NULL\r |
| 918 | );\r |
| 919 | \r |
| 920 | if (EFI_ERROR (EfiStatus)) {\r |
| 921 | DEBUG (\r |
| 922 | (DEBUG_WARN,\r |
| 923 | "\nPxebcBisStart()""\n BisPtr->Initialize() %r (%xh)\n",\r |
| 924 | EfiStatus,\r |
| 925 | EfiStatus)\r |
| 926 | );\r |
| 927 | \r |
| 928 | return NULL;\r |
| 929 | }\r |
| 930 | \r |
| 931 | DEBUG (\r |
| 932 | (DEBUG_INFO,\r |
| 933 | " BIS version: %d.%d",\r |
| 934 | BisInterfaceVersion.Major,\r |
| 935 | BisInterfaceVersion.Minor)\r |
| 936 | );\r |
| 937 | \r |
| 938 | //\r |
| 939 | // If the requested BIS API version is not supported,\r |
| 940 | // shutdown BIS and return NULL.\r |
| 941 | //\r |
| 942 | if (BisInterfaceVersion.Major != BIS_VERSION_1) {\r |
| 943 | DEBUG (\r |
| 944 | (DEBUG_WARN,\r |
| 945 | "\nPxebcBisStart()""\n BIS version %d.%d not supported by PXE BaseCode.\n",\r |
| 946 | BisInterfaceVersion.Major,\r |
| 947 | BisInterfaceVersion.Minor)\r |
| 948 | );\r |
| 949 | \r |
| 950 | BisPtr->Shutdown (*BisAppHandle);\r |
| 951 | return NULL;\r |
| 952 | }\r |
| 953 | //\r |
| 954 | // Get BIS check flag.\r |
| 955 | // If the BIS check flag cannot be read, shutdown BIS and return NULL.\r |
| 956 | //\r |
| 957 | DEBUG ((DEBUG_INFO, "\nBisPtr->GetBootObjectAuthorizationCheckFlag() "));\r |
| 958 | \r |
| 959 | EfiStatus = BisPtr->GetBootObjectAuthorizationCheckFlag (*BisAppHandle, &BisCheckFlag);\r |
| 960 | \r |
| 961 | if (EFI_ERROR (EfiStatus)) {\r |
| 962 | DEBUG (\r |
| 963 | (DEBUG_WARN,\r |
| 964 | "\nPxebcBisStart()""\n BisPtr->GetBootObjectAuthorizationCheckFlag() %r (%xh)\n",\r |
| 965 | EfiStatus,\r |
| 966 | EfiStatus)\r |
| 967 | );\r |
| 968 | \r |
| 969 | BisPtr->Shutdown (*BisAppHandle);\r |
| 970 | return NULL;\r |
| 971 | }\r |
| 972 | //\r |
| 973 | // If the BIS check flag is FALSE, shutdown BIS and return NULL.\r |
| 974 | //\r |
| 975 | if (!BisCheckFlag) {\r |
| 976 | DEBUG ((DEBUG_INFO, "\nBIS check flag is FALSE.\n"));\r |
| 977 | BisPtr->Shutdown (*BisAppHandle);\r |
| 978 | return NULL;\r |
| 979 | } else {\r |
| 980 | DEBUG ((DEBUG_INFO, "\nBIS check flag is TRUE."));\r |
| 981 | }\r |
| 982 | //\r |
| 983 | // Early out if caller does not want signature information.\r |
| 984 | //\r |
| 985 | if (BisDataSigInfo == NULL) {\r |
| 986 | return BisPtr;\r |
| 987 | }\r |
| 988 | //\r |
| 989 | // Get BIS signature information.\r |
| 990 | // If the signature information cannot be read or is invalid,\r |
| 991 | // shutdown BIS and return NULL.\r |
| 992 | //\r |
| 993 | DEBUG ((DEBUG_INFO, "\nBisPtr->GetSignatureInfo() "));\r |
| 994 | \r |
| 995 | EfiStatus = BisPtr->GetSignatureInfo (*BisAppHandle, BisDataSigInfo);\r |
| 996 | \r |
| 997 | if (EFI_ERROR (EfiStatus)) {\r |
| 998 | DEBUG (\r |
| 999 | (DEBUG_WARN,\r |
| 1000 | "\nPxebcBisStart()""\n BisPtr_GetSignatureInfo() %r (%xh)\n",\r |
| 1001 | EfiStatus,\r |
| 1002 | EfiStatus)\r |
| 1003 | );\r |
| 1004 | \r |
| 1005 | BisPtr->Shutdown (*BisAppHandle);\r |
| 1006 | return NULL;\r |
| 1007 | }\r |
| 1008 | \r |
| 1009 | if (*BisDataSigInfo == NULL) {\r |
| 1010 | //\r |
| 1011 | // This should never happen.\r |
| 1012 | //\r |
| 1013 | DEBUG (\r |
| 1014 | (DEBUG_NET,\r |
| 1015 | "\nPxebcBisStart()""\n BisPtr->GetSignatureInfo() Data pointer is NULL!\n")\r |
| 1016 | );\r |
| 1017 | \r |
| 1018 | BisPtr->Shutdown (*BisAppHandle);\r |
| 1019 | return NULL;\r |
| 1020 | }\r |
| 1021 | \r |
| 1022 | if ((*BisDataSigInfo)->Length < sizeof (EFI_BIS_SIGNATURE_INFO) ||\r |
| 1023 | (*BisDataSigInfo)->Length % sizeof (EFI_BIS_SIGNATURE_INFO) ||\r |
| 1024 | (*BisDataSigInfo)->Length > sizeof (EFI_BIS_SIGNATURE_INFO) * 63\r |
| 1025 | ) {\r |
| 1026 | //\r |
| 1027 | // This should never happen.\r |
| 1028 | //\r |
| 1029 | DEBUG (\r |
| 1030 | (DEBUG_NET,\r |
| 1031 | "\nPxebcBisStart()""\n BisPtr->GetSignatureInfo() Invalid BIS siginfo length.\n")\r |
| 1032 | );\r |
| 1033 | \r |
| 1034 | BisPtr->Free (*BisAppHandle, *BisDataSigInfo);\r |
| 1035 | BisPtr->Shutdown (*BisAppHandle);\r |
| 1036 | return NULL;\r |
| 1037 | }\r |
| 1038 | \r |
| 1039 | return BisPtr;\r |
| 1040 | }\r |
| 1041 | \r |
| 1042 | \r |
| 1043 | /**\r |
| 1044 | \r |
| 1045 | \r |
| 1046 | **/\r |
| 1047 | VOID\r |
| 1048 | PxebcBisStop (\r |
| 1049 | EFI_BIS_PROTOCOL *BisPtr,\r |
| 1050 | BIS_APPLICATION_HANDLE BisAppHandle,\r |
| 1051 | EFI_BIS_DATA *BisDataSigInfo\r |
| 1052 | )\r |
| 1053 | {\r |
| 1054 | if (BisPtr == NULL) {\r |
| 1055 | return ;\r |
| 1056 | }\r |
| 1057 | //\r |
| 1058 | // Free BIS allocated resources and shutdown BIS.\r |
| 1059 | // Return TRUE - BIS support is officially detected.\r |
| 1060 | //\r |
| 1061 | if (BisDataSigInfo != NULL) {\r |
| 1062 | BisPtr->Free (BisAppHandle, BisDataSigInfo);\r |
| 1063 | }\r |
| 1064 | \r |
| 1065 | BisPtr->Shutdown (BisAppHandle);\r |
| 1066 | }\r |
| 1067 | \r |
| 1068 | \r |
| 1069 | /**\r |
| 1070 | \r |
| 1071 | @return TRUE := verified\r |
| 1072 | @return FALSE := not verified\r |
| 1073 | \r |
| 1074 | **/\r |
| 1075 | BOOLEAN\r |
| 1076 | PxebcBisVerify (\r |
| 1077 | PXE_BASECODE_DEVICE *Private,\r |
| 1078 | VOID *FileBuffer,\r |
| 1079 | UINTN FileLength,\r |
| 1080 | VOID *CredentialBuffer,\r |
| 1081 | UINTN CredentialLength\r |
| 1082 | )\r |
| 1083 | {\r |
| 1084 | EFI_BIS_PROTOCOL *BisPtr;\r |
| 1085 | BIS_APPLICATION_HANDLE BisAppHandle;\r |
| 1086 | EFI_BIS_DATA FileData;\r |
| 1087 | EFI_BIS_DATA CredentialData;\r |
| 1088 | EFI_STATUS EfiStatus;\r |
| 1089 | BOOLEAN IsVerified;\r |
| 1090 | \r |
| 1091 | if (Private == NULL || FileBuffer == NULL || FileLength == 0 || CredentialBuffer == NULL || CredentialLength == 0) {\r |
| 1092 | return FALSE;\r |
| 1093 | }\r |
| 1094 | \r |
| 1095 | BisPtr = PxebcBisStart (Private, &BisAppHandle, NULL);\r |
| 1096 | \r |
| 1097 | if (BisPtr == NULL) {\r |
| 1098 | return FALSE;\r |
| 1099 | }\r |
| 1100 | \r |
| 1101 | FileData.Length = (UINT32) FileLength;\r |
| 1102 | FileData.Data = FileBuffer;\r |
| 1103 | CredentialData.Length = (UINT32) CredentialLength;\r |
| 1104 | CredentialData.Data = CredentialBuffer;\r |
| 1105 | \r |
| 1106 | EfiStatus = BisPtr->VerifyBootObject (\r |
| 1107 | BisAppHandle,\r |
| 1108 | &CredentialData,\r |
| 1109 | &FileData,\r |
| 1110 | &IsVerified\r |
| 1111 | );\r |
| 1112 | \r |
| 1113 | PxebcBisStop (BisPtr, BisAppHandle, NULL);\r |
| 1114 | \r |
| 1115 | return (BOOLEAN) ((EFI_ERROR (EfiStatus)) ? FALSE : (IsVerified ? TRUE : FALSE));\r |
| 1116 | }\r |
| 1117 | \r |
| 1118 | \r |
| 1119 | /**\r |
| 1120 | \r |
| 1121 | @return TRUE := BIS present\r |
| 1122 | @return FALSE := BIS not present\r |
| 1123 | \r |
| 1124 | **/\r |
| 1125 | BOOLEAN\r |
| 1126 | PxebcBisDetect (\r |
| 1127 | PXE_BASECODE_DEVICE *Private\r |
| 1128 | )\r |
| 1129 | {\r |
| 1130 | EFI_BIS_PROTOCOL *BisPtr;\r |
| 1131 | BIS_APPLICATION_HANDLE BisAppHandle;\r |
| 1132 | EFI_BIS_DATA *BisDataSigInfo;\r |
| 1133 | \r |
| 1134 | BisPtr = PxebcBisStart (Private, &BisAppHandle, &BisDataSigInfo);\r |
| 1135 | \r |
| 1136 | if (BisPtr == NULL) {\r |
| 1137 | return FALSE;\r |
| 1138 | }\r |
| 1139 | \r |
| 1140 | PxebcBisStop (BisPtr, BisAppHandle, BisDataSigInfo);\r |
| 1141 | \r |
| 1142 | return TRUE;\r |
| 1143 | }\r |
| 1144 | \r |
| 1145 | static VOID *BCNotifyReg;\r |
| 1146 | \r |
| 1147 | \r |
| 1148 | /**\r |
| 1149 | Start and initialize the BaseCode protocol, Simple Network protocol and UNDI.\r |
| 1150 | \r |
| 1151 | @param Private Pointer to Pxe BaseCode Protocol\r |
| 1152 | @param UseIPv6 Do we want to support IPv6?\r |
| 1153 | \r |
| 1154 | @return EFI_SUCCESS\r |
| 1155 | @return EFI_INVALID_PARAMETER\r |
| 1156 | @return EFI_UNSUPPORTED\r |
| 1157 | @return EFI_ALREADY_STARTED\r |
| 1158 | @return EFI_OUT_OF_RESOURCES\r |
| 1159 | @return Status is also returned from SNP.Start() and SNP.Initialize().\r |
| 1160 | \r |
| 1161 | **/\r |
| 1162 | EFI_STATUS\r |
| 1163 | EFIAPI\r |
| 1164 | BcStart (\r |
| 1165 | IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r |
| 1166 | IN BOOLEAN UseIPv6\r |
| 1167 | )\r |
| 1168 | {\r |
| 1169 | EFI_SIMPLE_NETWORK_PROTOCOL *SnpPtr;\r |
| 1170 | EFI_SIMPLE_NETWORK_MODE *SnpModePtr;\r |
| 1171 | EFI_STATUS Status;\r |
| 1172 | EFI_STATUS StatCode;\r |
| 1173 | PXE_BASECODE_DEVICE *Private;\r |
| 1174 | \r |
| 1175 | //\r |
| 1176 | // Lock the instance data\r |
| 1177 | //\r |
| 1178 | StatCode = EFI_SUCCESS;\r |
| 1179 | \r |
| 1180 | if (This == NULL) {\r |
| 1181 | DEBUG ((DEBUG_ERROR, "BC *This pointer == NULL"));\r |
| 1182 | return EFI_INVALID_PARAMETER;\r |
| 1183 | }\r |
| 1184 | \r |
| 1185 | Private = CR (This, PXE_BASECODE_DEVICE, EfiBc, PXE_BASECODE_DEVICE_SIGNATURE);\r |
| 1186 | \r |
| 1187 | if (Private == NULL) {\r |
| 1188 | DEBUG ((DEBUG_ERROR, "PXE_BASECODE_DEVICE pointer == NULL"));\r |
| 1189 | return EFI_INVALID_PARAMETER;\r |
| 1190 | }\r |
| 1191 | \r |
| 1192 | EfiAcquireLock (&Private->Lock);\r |
| 1193 | \r |
| 1194 | //\r |
| 1195 | // Make sure BaseCode is not already started.\r |
| 1196 | //\r |
| 1197 | if (This->Mode->Started) {\r |
| 1198 | DEBUG ((DEBUG_WARN, "\nBcStart() BC is already started.\n"));\r |
| 1199 | EfiReleaseLock (&Private->Lock);\r |
| 1200 | return EFI_ALREADY_STARTED;\r |
| 1201 | }\r |
| 1202 | \r |
| 1203 | #if !SUPPORT_IPV6\r |
| 1204 | //\r |
| 1205 | // Fail if IPv6 is requested and not supported.\r |
| 1206 | //\r |
| 1207 | if (UseIPv6) {\r |
| 1208 | DEBUG ((DEBUG_WARN, "\nBcStart() IPv6 is not supported.\n"));\r |
| 1209 | EfiReleaseLock (&Private->Lock);\r |
| 1210 | return EFI_UNSUPPORTED;\r |
| 1211 | }\r |
| 1212 | #endif\r |
| 1213 | //\r |
| 1214 | // Setup shortcuts to SNP protocol and data structure.\r |
| 1215 | //\r |
| 1216 | SnpPtr = Private->SimpleNetwork;\r |
| 1217 | SnpModePtr = SnpPtr->Mode;\r |
| 1218 | \r |
| 1219 | //\r |
| 1220 | // Start and initialize SNP.\r |
| 1221 | //\r |
| 1222 | if (SnpModePtr->State == EfiSimpleNetworkStopped) {\r |
| 1223 | StatCode = (*SnpPtr->Start) (SnpPtr);\r |
| 1224 | \r |
| 1225 | if (SnpModePtr->State != EfiSimpleNetworkStarted) {\r |
| 1226 | DEBUG ((DEBUG_WARN, "\nBcStart() Could not start SNP.\n"));\r |
| 1227 | EfiReleaseLock (&Private->Lock);\r |
| 1228 | return StatCode;\r |
| 1229 | }\r |
| 1230 | }\r |
| 1231 | //\r |
| 1232 | // acquire memory for mode and transmit/receive buffers\r |
| 1233 | //\r |
| 1234 | if (SnpModePtr->State == EfiSimpleNetworkStarted) {\r |
| 1235 | StatCode = (*SnpPtr->Initialize) (SnpPtr, 0, 0);\r |
| 1236 | \r |
| 1237 | if (SnpModePtr->State != EfiSimpleNetworkInitialized) {\r |
| 1238 | DEBUG ((DEBUG_WARN, "\nBcStart() Could not initialize SNP."));\r |
| 1239 | EfiReleaseLock (&Private->Lock);\r |
| 1240 | return StatCode;\r |
| 1241 | }\r |
| 1242 | }\r |
| 1243 | //\r |
| 1244 | // Dump debug info.\r |
| 1245 | //\r |
| 1246 | DEBUG ((DEBUG_INFO, "\nBC Start()"));\r |
| 1247 | DEBUG (\r |
| 1248 | (DEBUG_INFO,\r |
| 1249 | "\nSnpModePtr->State %Xh",\r |
| 1250 | SnpModePtr->State)\r |
| 1251 | );\r |
| 1252 | DEBUG (\r |
| 1253 | (DEBUG_INFO,\r |
| 1254 | "\nSnpModePtr->HwAddressSize %Xh",\r |
| 1255 | SnpModePtr->HwAddressSize)\r |
| 1256 | );\r |
| 1257 | DEBUG (\r |
| 1258 | (DEBUG_INFO,\r |
| 1259 | "\nSnpModePtr->MediaHeaderSize %Xh",\r |
| 1260 | SnpModePtr->MediaHeaderSize)\r |
| 1261 | );\r |
| 1262 | DEBUG (\r |
| 1263 | (DEBUG_INFO,\r |
| 1264 | "\nSnpModePtr->MaxPacketSize %Xh",\r |
| 1265 | SnpModePtr->MaxPacketSize)\r |
| 1266 | );\r |
| 1267 | DEBUG (\r |
| 1268 | (DEBUG_INFO,\r |
| 1269 | "\nSnpModePtr->MacAddressChangeable %Xh",\r |
| 1270 | SnpModePtr->MacAddressChangeable)\r |
| 1271 | );\r |
| 1272 | DEBUG (\r |
| 1273 | (DEBUG_INFO,\r |
| 1274 | "\nSnpModePtr->MultipleTxSupported %Xh",\r |
| 1275 | SnpModePtr->MultipleTxSupported)\r |
| 1276 | );\r |
| 1277 | DEBUG (\r |
| 1278 | (DEBUG_INFO,\r |
| 1279 | "\nSnpModePtr->CurrentAddress %Xh",\r |
| 1280 | *((UINTN *)&SnpModePtr->CurrentAddress))\r |
| 1281 | );\r |
| 1282 | DEBUG (\r |
| 1283 | (DEBUG_INFO,\r |
| 1284 | "\nSnpModePtr->BroadcastAddress %Xh",\r |
| 1285 | *((UINTN *)&SnpModePtr->BroadcastAddress))\r |
| 1286 | );\r |
| 1287 | DEBUG (\r |
| 1288 | (DEBUG_INFO,\r |
| 1289 | "\nSnpModePtr->PermanentAddress %Xh",\r |
| 1290 | *((UINTN *)&SnpModePtr->PermanentAddress))\r |
| 1291 | );\r |
| 1292 | DEBUG (\r |
| 1293 | (DEBUG_INFO,\r |
| 1294 | "\nSnpModePtr->NvRamSize %Xh",\r |
| 1295 | SnpModePtr->NvRamSize)\r |
| 1296 | );\r |
| 1297 | DEBUG (\r |
| 1298 | (DEBUG_INFO,\r |
| 1299 | "\nSnpModePtr->NvRamAccessSize %Xh",\r |
| 1300 | SnpModePtr->NvRamAccessSize)\r |
| 1301 | );\r |
| 1302 | DEBUG (\r |
| 1303 | (DEBUG_INFO,\r |
| 1304 | "\nSnpModePtr->ReceiveFilterMask %Xh",\r |
| 1305 | SnpModePtr->ReceiveFilterMask)\r |
| 1306 | );\r |
| 1307 | DEBUG (\r |
| 1308 | (DEBUG_INFO,\r |
| 1309 | "\nSnpModePtr->ReceiveFilterSetting %Xh",\r |
| 1310 | SnpModePtr->ReceiveFilterSetting)\r |
| 1311 | );\r |
| 1312 | DEBUG (\r |
| 1313 | (DEBUG_INFO,\r |
| 1314 | "\nSnpModePtr->MCastFilterCount %Xh",\r |
| 1315 | SnpModePtr->MCastFilterCount)\r |
| 1316 | );\r |
| 1317 | DEBUG (\r |
| 1318 | (DEBUG_INFO,\r |
| 1319 | "\nSnpModePtr->MCastFilter %Xh",\r |
| 1320 | SnpModePtr->MCastFilter)\r |
| 1321 | );\r |
| 1322 | DEBUG (\r |
| 1323 | (DEBUG_INFO,\r |
| 1324 | "\nSnpModePtr->IfType %Xh",\r |
| 1325 | SnpModePtr->IfType)\r |
| 1326 | );\r |
| 1327 | DEBUG (\r |
| 1328 | (DEBUG_INFO,\r |
| 1329 | "\nSnpModePtr->MediaPresentSupported %Xh",\r |
| 1330 | SnpModePtr->MediaPresentSupported)\r |
| 1331 | );\r |
| 1332 | DEBUG (\r |
| 1333 | (DEBUG_INFO,\r |
| 1334 | "\nSnpModePtr->MediaPresent %Xh",\r |
| 1335 | SnpModePtr->MediaPresent)\r |
| 1336 | );\r |
| 1337 | \r |
| 1338 | //\r |
| 1339 | // If media check is supported and there is no media,\r |
| 1340 | // return error to caller.\r |
| 1341 | //\r |
| 1342 | if (SnpModePtr->MediaPresentSupported && !SnpModePtr->MediaPresent) {\r |
| 1343 | DEBUG ((DEBUG_WARN, "\nBcStart() Media not present.\n"));\r |
| 1344 | EfiReleaseLock (&Private->Lock);\r |
| 1345 | return EFI_NO_MEDIA;\r |
| 1346 | }\r |
| 1347 | //\r |
| 1348 | // Allocate Tx/Rx buffers\r |
| 1349 | //\r |
| 1350 | Status = gBS->AllocatePool (\r |
| 1351 | EfiBootServicesData,\r |
| 1352 | BUFFER_ALLOCATE_SIZE,\r |
| 1353 | &Private->TransmitBufferPtr\r |
| 1354 | );\r |
| 1355 | \r |
| 1356 | if (!EFI_ERROR (Status)) {\r |
| 1357 | ZeroMem (Private->TransmitBufferPtr, BUFFER_ALLOCATE_SIZE);\r |
| 1358 | } else {\r |
| 1359 | DEBUG ((DEBUG_NET, "\nBcStart() Could not alloc TxBuf.\n"));\r |
| 1360 | EfiReleaseLock (&Private->Lock);\r |
| 1361 | return EFI_OUT_OF_RESOURCES;\r |
| 1362 | }\r |
| 1363 | \r |
| 1364 | Status = gBS->AllocatePool (\r |
| 1365 | EfiBootServicesData,\r |
| 1366 | BUFFER_ALLOCATE_SIZE,\r |
| 1367 | &Private->ReceiveBufferPtr\r |
| 1368 | );\r |
| 1369 | \r |
| 1370 | if (!EFI_ERROR (Status)) {\r |
| 1371 | ZeroMem (Private->ReceiveBufferPtr, BUFFER_ALLOCATE_SIZE);\r |
| 1372 | } else {\r |
| 1373 | DEBUG ((DEBUG_NET, "\nBcStart() Could not alloc RxBuf.\n"));\r |
| 1374 | gBS->FreePool (Private->TransmitBufferPtr);\r |
| 1375 | EfiReleaseLock (&Private->Lock);\r |
| 1376 | return EFI_OUT_OF_RESOURCES;\r |
| 1377 | }\r |
| 1378 | \r |
| 1379 | Status = gBS->AllocatePool (\r |
| 1380 | EfiBootServicesData,\r |
| 1381 | 256,\r |
| 1382 | &Private->TftpErrorBuffer\r |
| 1383 | );\r |
| 1384 | \r |
| 1385 | if (EFI_ERROR (Status)) {\r |
| 1386 | gBS->FreePool (Private->ReceiveBufferPtr);\r |
| 1387 | gBS->FreePool (Private->TransmitBufferPtr);\r |
| 1388 | EfiReleaseLock (&Private->Lock);\r |
| 1389 | return EFI_OUT_OF_RESOURCES;\r |
| 1390 | }\r |
| 1391 | \r |
| 1392 | Status = gBS->AllocatePool (EfiBootServicesData, 256, &Private->TftpAckBuffer);\r |
| 1393 | \r |
| 1394 | if (EFI_ERROR (Status)) {\r |
| 1395 | gBS->FreePool (Private->TftpErrorBuffer);\r |
| 1396 | gBS->FreePool (Private->ReceiveBufferPtr);\r |
| 1397 | gBS->FreePool (Private->TransmitBufferPtr);\r |
| 1398 | EfiReleaseLock (&Private->Lock);\r |
| 1399 | return EFI_OUT_OF_RESOURCES;\r |
| 1400 | }\r |
| 1401 | //\r |
| 1402 | // Initialize private BaseCode instance data\r |
| 1403 | //\r |
| 1404 | do {\r |
| 1405 | Private->RandomPort = (UINT16) (Private->RandomPort + PXE_RND_PORT_LOW + Random (Private));\r |
| 1406 | } while (Private->RandomPort < PXE_RND_PORT_LOW);\r |
| 1407 | \r |
| 1408 | Private->Igmpv1TimeoutEvent = NULL;\r |
| 1409 | Private->UseIgmpv1Reporting = TRUE;\r |
| 1410 | Private->IpLength = IP_ADDRESS_LENGTH (Private->EfiBc.Mode);\r |
| 1411 | \r |
| 1412 | //\r |
| 1413 | // Initialize Mode structure\r |
| 1414 | //\r |
| 1415 | ZeroMem (Private->EfiBc.Mode, sizeof (EFI_PXE_BASE_CODE_MODE));\r |
| 1416 | //\r |
| 1417 | // check for callback protocol and set boolean\r |
| 1418 | //\r |
| 1419 | SetMakeCallback (Private);\r |
| 1420 | Private->EfiBc.Mode->Started = TRUE;\r |
| 1421 | Private->EfiBc.Mode->TTL = DEFAULT_TTL;\r |
| 1422 | Private->EfiBc.Mode->ToS = DEFAULT_ToS;\r |
| 1423 | Private->EfiBc.Mode->UsingIpv6 = UseIPv6;\r |
| 1424 | \r |
| 1425 | //\r |
| 1426 | // Set to PXE_TRUE by the BC constructor if this BC implementation\r |
| 1427 | // supports IPv6.\r |
| 1428 | //\r |
| 1429 | Private->EfiBc.Mode->Ipv6Supported = SUPPORT_IPV6;\r |
| 1430 | \r |
| 1431 | Private->EfiBc.Mode->Ipv6Available = FALSE;\r |
| 1432 | //\r |
| 1433 | // Set to TRUE by the BC constructor if this BC implementation\r |
| 1434 | // supports BIS.\r |
| 1435 | //\r |
| 1436 | Private->EfiBc.Mode->BisSupported = TRUE;\r |
| 1437 | Private->EfiBc.Mode->BisDetected = PxebcBisDetect (Private);\r |
| 1438 | \r |
| 1439 | //\r |
| 1440 | // This field is set to PXE_TRUE by the BC Start() function. When this\r |
| 1441 | // field is PXE_TRUE, ARP packets are sent as needed to get IP and MAC\r |
| 1442 | // addresses. This can cause unexpected delays in the DHCP(), Discover()\r |
| 1443 | // and MTFTP() functions. Setting this to PXE_FALSE will cause these\r |
| 1444 | // functions to fail if the required IP/MAC information is not in the\r |
| 1445 | // ARP cache. The value of this field can be changed by an application\r |
| 1446 | // at any time.\r |
| 1447 | //\r |
| 1448 | Private->EfiBc.Mode->AutoArp = TRUE;\r |
| 1449 | \r |
| 1450 | //\r |
| 1451 | // Unlock the instance data\r |
| 1452 | //\r |
| 1453 | EfiReleaseLock (&Private->Lock);\r |
| 1454 | return EFI_SUCCESS;\r |
| 1455 | }\r |
| 1456 | \r |
| 1457 | \r |
| 1458 | /**\r |
| 1459 | Stop the BaseCode protocol, Simple Network protocol and UNDI.\r |
| 1460 | \r |
| 1461 | @param Private Pointer to Pxe BaseCode Protocol\r |
| 1462 | \r |
| 1463 | @retval 0 Successfully stopped\r |
| 1464 | @retval !0 Failed\r |
| 1465 | \r |
| 1466 | **/\r |
| 1467 | EFI_STATUS\r |
| 1468 | EFIAPI\r |
| 1469 | BcStop (\r |
| 1470 | IN EFI_PXE_BASE_CODE_PROTOCOL *This\r |
| 1471 | )\r |
| 1472 | {\r |
| 1473 | //\r |
| 1474 | // Lock the instance data\r |
| 1475 | //\r |
| 1476 | EFI_PXE_BASE_CODE_MODE *PxebcMode;\r |
| 1477 | EFI_SIMPLE_NETWORK_PROTOCOL *SnpPtr;\r |
| 1478 | EFI_SIMPLE_NETWORK_MODE *SnpModePtr;\r |
| 1479 | EFI_STATUS StatCode;\r |
| 1480 | PXE_BASECODE_DEVICE *Private;\r |
| 1481 | \r |
| 1482 | StatCode = EFI_SUCCESS;\r |
| 1483 | \r |
| 1484 | if (This == NULL) {\r |
| 1485 | DEBUG ((DEBUG_ERROR, "BC *This pointer == NULL"));\r |
| 1486 | return EFI_INVALID_PARAMETER;\r |
| 1487 | }\r |
| 1488 | \r |
| 1489 | Private = CR (This, PXE_BASECODE_DEVICE, EfiBc, PXE_BASECODE_DEVICE_SIGNATURE);\r |
| 1490 | \r |
| 1491 | if (Private == NULL) {\r |
| 1492 | DEBUG ((DEBUG_ERROR, "PXE_BASECODE_DEVICE poiner == NULL"));\r |
| 1493 | return EFI_INVALID_PARAMETER;\r |
| 1494 | }\r |
| 1495 | \r |
| 1496 | EfiAcquireLock (&Private->Lock);\r |
| 1497 | \r |
| 1498 | PxebcMode = Private->EfiBc.Mode;\r |
| 1499 | SnpPtr = Private->SimpleNetwork;\r |
| 1500 | SnpModePtr = SnpPtr->Mode;\r |
| 1501 | \r |
| 1502 | //\r |
| 1503 | // Issue BC command\r |
| 1504 | //\r |
| 1505 | StatCode = EFI_NOT_STARTED;\r |
| 1506 | \r |
| 1507 | if (SnpModePtr->State == EfiSimpleNetworkInitialized) {\r |
| 1508 | StatCode = (*SnpPtr->Shutdown) (SnpPtr);\r |
| 1509 | }\r |
| 1510 | \r |
| 1511 | if (SnpModePtr->State == EfiSimpleNetworkStarted) {\r |
| 1512 | StatCode = (*SnpPtr->Stop) (SnpPtr);\r |
| 1513 | }\r |
| 1514 | \r |
| 1515 | if (Private->TransmitBufferPtr != NULL) {\r |
| 1516 | gBS->FreePool (Private->TransmitBufferPtr);\r |
| 1517 | Private->TransmitBufferPtr = NULL;\r |
| 1518 | }\r |
| 1519 | \r |
| 1520 | if (Private->ReceiveBufferPtr != NULL) {\r |
| 1521 | gBS->FreePool (Private->ReceiveBufferPtr);\r |
| 1522 | Private->ReceiveBufferPtr = NULL;\r |
| 1523 | }\r |
| 1524 | \r |
| 1525 | if (Private->ArpBuffer != NULL) {\r |
| 1526 | gBS->FreePool (Private->ArpBuffer);\r |
| 1527 | Private->ArpBuffer = NULL;\r |
| 1528 | }\r |
| 1529 | \r |
| 1530 | if (Private->TftpErrorBuffer != NULL) {\r |
| 1531 | gBS->FreePool (Private->TftpErrorBuffer);\r |
| 1532 | Private->TftpErrorBuffer = NULL;\r |
| 1533 | }\r |
| 1534 | \r |
| 1535 | if (Private->TftpAckBuffer != NULL) {\r |
| 1536 | gBS->FreePool (Private->TftpAckBuffer);\r |
| 1537 | Private->TftpAckBuffer = NULL;\r |
| 1538 | }\r |
| 1539 | \r |
| 1540 | if (Private->Igmpv1TimeoutEvent != NULL) {\r |
| 1541 | gBS->CloseEvent (Private->Igmpv1TimeoutEvent);\r |
| 1542 | Private->Igmpv1TimeoutEvent = NULL;\r |
| 1543 | }\r |
| 1544 | \r |
| 1545 | Private->FileSize = 0;\r |
| 1546 | \r |
| 1547 | if (!Private->EfiBc.Mode->Started) {\r |
| 1548 | StatCode = EFI_NOT_STARTED;\r |
| 1549 | } else {\r |
| 1550 | Private->EfiBc.Mode->Started = FALSE;\r |
| 1551 | }\r |
| 1552 | \r |
| 1553 | //\r |
| 1554 | // Unlock the instance data\r |
| 1555 | //\r |
| 1556 | EfiReleaseLock (&Private->Lock);\r |
| 1557 | return StatCode;\r |
| 1558 | }\r |
| 1559 | \r |
| 1560 | const IPV4_ADDR AllSystemsGroup = { 224, 0, 0, 1 };\r |
| 1561 | \r |
| 1562 | \r |
| 1563 | /**\r |
| 1564 | Set up the IP filter\r |
| 1565 | \r |
| 1566 | @param Private Pointer to Pxe BaseCode Protocol\r |
| 1567 | @param Filter Pointer to the filter\r |
| 1568 | \r |
| 1569 | @retval 0 Successfully set the filter\r |
| 1570 | @retval !0 Failed\r |
| 1571 | \r |
| 1572 | **/\r |
| 1573 | EFI_STATUS\r |
| 1574 | IpFilter (\r |
| 1575 | IN PXE_BASECODE_DEVICE *Private,\r |
| 1576 | IN EFI_PXE_BASE_CODE_IP_FILTER *Filter\r |
| 1577 | )\r |
| 1578 | {\r |
| 1579 | EFI_STATUS StatCode;\r |
| 1580 | EFI_MAC_ADDRESS MACadds[PXE_IP_FILTER_SIZE];\r |
| 1581 | EFI_PXE_BASE_CODE_MODE *PxebcMode;\r |
| 1582 | EFI_SIMPLE_NETWORK_PROTOCOL *SnpPtr;\r |
| 1583 | EFI_SIMPLE_NETWORK_MODE *SnpModePtr;\r |
| 1584 | UINT32 Enable;\r |
| 1585 | UINT32 Disable;\r |
| 1586 | UINTN Index;\r |
| 1587 | UINTN Index2;\r |
| 1588 | \r |
| 1589 | PxebcMode = Private->EfiBc.Mode;\r |
| 1590 | SnpPtr = Private->SimpleNetwork;\r |
| 1591 | SnpModePtr = SnpPtr->Mode;\r |
| 1592 | \r |
| 1593 | //\r |
| 1594 | // validate input parameters\r |
| 1595 | // must have a filter\r |
| 1596 | // must not have any extra filter bits set\r |
| 1597 | //\r |
| 1598 | if (Filter == NULL ||\r |
| 1599 | (Filter->Filters &~FILTER_BITS)\r |
| 1600 | //\r |
| 1601 | // must not have a count which is too large or with no IP list\r |
| 1602 | //\r |
| 1603 | ||\r |
| 1604 | (Filter->IpCnt && (!Filter->IpList || Filter->IpCnt > PXE_IP_FILTER_SIZE))\r |
| 1605 | //\r |
| 1606 | // must not have incompatible filters - promiscuous incompatible with anything else\r |
| 1607 | //\r |
| 1608 | ||\r |
| 1609 | (\r |
| 1610 | (Filter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS) &&\r |
| 1611 | ((Filter->Filters &~EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS) || Filter->IpCnt)\r |
| 1612 | )\r |
| 1613 | ) {\r |
| 1614 | DEBUG ((DEBUG_INFO, "\nIpFilter() Exit #1"));\r |
| 1615 | return EFI_INVALID_PARAMETER;\r |
| 1616 | }\r |
| 1617 | //\r |
| 1618 | // promiscuous multicast incompatible with multicast in IP list\r |
| 1619 | //\r |
| 1620 | if (Filter->IpCnt && (Filter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST)) {\r |
| 1621 | for (Index = 0; Index < Filter->IpCnt; ++Index) {\r |
| 1622 | if (IS_MULTICAST (&Filter->IpList[Index])) {\r |
| 1623 | DEBUG ((DEBUG_INFO, "\nIpFilter() Exit #2"));\r |
| 1624 | return EFI_INVALID_PARAMETER;\r |
| 1625 | }\r |
| 1626 | }\r |
| 1627 | }\r |
| 1628 | //\r |
| 1629 | // leave groups for all those multicast which are no longer enabled\r |
| 1630 | //\r |
| 1631 | for (Index = 0; Index < PxebcMode->IpFilter.IpCnt; ++Index) {\r |
| 1632 | if (!IS_MULTICAST (&PxebcMode->IpFilter.IpList[Index])) {\r |
| 1633 | continue;\r |
| 1634 | }\r |
| 1635 | \r |
| 1636 | for (Index2 = 0; Index2 < Filter->IpCnt; ++Index2) {\r |
| 1637 | if (!CompareMem (&PxebcMode->IpFilter.IpList[Index], &Filter->IpList[Index2], IP_ADDRESS_LENGTH (PxebcMode))) {\r |
| 1638 | //\r |
| 1639 | // still enabled\r |
| 1640 | //\r |
| 1641 | break;\r |
| 1642 | }\r |
| 1643 | }\r |
| 1644 | //\r |
| 1645 | // if we didn't find it, remove from group\r |
| 1646 | //\r |
| 1647 | if (Index2 == Filter->IpCnt) {\r |
| 1648 | IgmpLeaveGroup (Private, &PxebcMode->IpFilter.IpList[Index]);\r |
| 1649 | }\r |
| 1650 | }\r |
| 1651 | //\r |
| 1652 | // set enable bits, convert multicast ip adds, join groups\r |
| 1653 | // allways leave receive broadcast enabled at hardware layer\r |
| 1654 | //\r |
| 1655 | Index2 = 0;\r |
| 1656 | \r |
| 1657 | if (Filter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS) {\r |
| 1658 | Enable = EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;\r |
| 1659 | } else {\r |
| 1660 | if (Filter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST) {\r |
| 1661 | Enable = EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r |
| 1662 | } else {\r |
| 1663 | Enable = EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;\r |
| 1664 | \r |
| 1665 | for (Index = 0; Index < Filter->IpCnt; ++Index) {\r |
| 1666 | PxebcMode->IpFilter.IpList[Index] = Filter->IpList[Index];\r |
| 1667 | \r |
| 1668 | if (IS_MULTICAST (&Filter->IpList[Index])) {\r |
| 1669 | EFI_IP_ADDRESS *TmpIp;\r |
| 1670 | \r |
| 1671 | Enable |= EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST;\r |
| 1672 | \r |
| 1673 | //\r |
| 1674 | // if this is the first group, add the all systems group to mcast list\r |
| 1675 | //\r |
| 1676 | if (!Index2)\r |
| 1677 | {\r |
| 1678 | TmpIp = (EFI_IP_ADDRESS *) &AllSystemsGroup;\r |
| 1679 | --Index;\r |
| 1680 | } else {\r |
| 1681 | TmpIp = (EFI_IP_ADDRESS *) &Filter->IpList[Index];\r |
| 1682 | }\r |
| 1683 | //\r |
| 1684 | // get MAC address of IP\r |
| 1685 | //\r |
| 1686 | StatCode = (*SnpPtr->MCastIpToMac) (SnpPtr, PxebcMode->UsingIpv6, TmpIp, &MACadds[Index2++]);\r |
| 1687 | \r |
| 1688 | if (EFI_ERROR (StatCode)) {\r |
| 1689 | DEBUG (\r |
| 1690 | (DEBUG_INFO,\r |
| 1691 | "\nIpFilter() Exit #2 %Xh (%r)",\r |
| 1692 | StatCode,\r |
| 1693 | StatCode)\r |
| 1694 | );\r |
| 1695 | return StatCode;\r |
| 1696 | }\r |
| 1697 | } else {\r |
| 1698 | Enable |= EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;\r |
| 1699 | }\r |
| 1700 | }\r |
| 1701 | }\r |
| 1702 | \r |
| 1703 | if (Filter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) {\r |
| 1704 | Enable |= EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;\r |
| 1705 | }\r |
| 1706 | }\r |
| 1707 | //\r |
| 1708 | // if nothing changed, just return\r |
| 1709 | //\r |
| 1710 | DEBUG (\r |
| 1711 | (DEBUG_INFO,\r |
| 1712 | "\nsnp->ReceiveFilterSetting == %Xh Filter->IpCnt == %Xh",\r |
| 1713 | SnpModePtr->ReceiveFilterSetting,\r |
| 1714 | Filter->IpCnt)\r |
| 1715 | );\r |
| 1716 | \r |
| 1717 | if (SnpModePtr->ReceiveFilterSetting == Enable && !Filter->IpCnt) {\r |
| 1718 | DEBUG ((DEBUG_INFO, "\nIpFilter() Exit #4"));\r |
| 1719 | return EFI_SUCCESS;\r |
| 1720 | }\r |
| 1721 | //\r |
| 1722 | // disable those currently set but not set in new filter\r |
| 1723 | //\r |
| 1724 | Disable = SnpModePtr->ReceiveFilterSetting &~Enable;\r |
| 1725 | \r |
| 1726 | StatCode = SnpPtr->ReceiveFilters (SnpPtr, Enable, Disable, FALSE, Index2, MACadds);\r |
| 1727 | \r |
| 1728 | PxebcMode->IpFilter.IpCnt = Filter->IpCnt;\r |
| 1729 | \r |
| 1730 | //\r |
| 1731 | // join groups for all multicast in list\r |
| 1732 | //\r |
| 1733 | for (Index = 0; Index < Filter->IpCnt; ++Index) {\r |
| 1734 | if (IS_MULTICAST (&Filter->IpList[Index])) {\r |
| 1735 | IgmpJoinGroup (Private, &Filter->IpList[Index]);\r |
| 1736 | }\r |
| 1737 | }\r |
| 1738 | \r |
| 1739 | DEBUG ((DEBUG_INFO, "\nIpFilter() Exit #5 %Xh (%r)", StatCode, StatCode));\r |
| 1740 | \r |
| 1741 | return StatCode;\r |
| 1742 | }\r |
| 1743 | \r |
| 1744 | \r |
| 1745 | /**\r |
| 1746 | Call the IP filter\r |
| 1747 | \r |
| 1748 | @param Private Pointer to Pxe BaseCode Protocol\r |
| 1749 | @param Filter Pointer to the filter\r |
| 1750 | \r |
| 1751 | @retval 0 Successfully set the filter\r |
| 1752 | @retval !0 Failed\r |
| 1753 | \r |
| 1754 | **/\r |
| 1755 | EFI_STATUS\r |
| 1756 | EFIAPI\r |
| 1757 | BcIpFilter (\r |
| 1758 | IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r |
| 1759 | IN EFI_PXE_BASE_CODE_IP_FILTER *Filter\r |
| 1760 | )\r |
| 1761 | {\r |
| 1762 | EFI_STATUS StatCode;\r |
| 1763 | PXE_BASECODE_DEVICE *Private;\r |
| 1764 | UINTN Index;\r |
| 1765 | //\r |
| 1766 | // Lock the instance data and make sure started\r |
| 1767 | //\r |
| 1768 | StatCode = EFI_SUCCESS;\r |
| 1769 | \r |
| 1770 | if (This == NULL) {\r |
| 1771 | DEBUG ((DEBUG_ERROR, "BC *This pointer == NULL"));\r |
| 1772 | return EFI_INVALID_PARAMETER;\r |
| 1773 | }\r |
| 1774 | \r |
| 1775 | Private = CR (This, PXE_BASECODE_DEVICE, EfiBc, PXE_BASECODE_DEVICE_SIGNATURE);\r |
| 1776 | \r |
| 1777 | if (Private == NULL) {\r |
| 1778 | DEBUG ((DEBUG_ERROR, "PXE_BASECODE_DEVICE poiner == NULL"));\r |
| 1779 | return EFI_INVALID_PARAMETER;\r |
| 1780 | }\r |
| 1781 | \r |
| 1782 | for (Index = 0; Index < Filter->IpCnt; ++Index) {\r |
| 1783 | if ((Filter->IpList[Index].Addr[0]) == BROADCAST_IPv4) {\r |
| 1784 | //\r |
| 1785 | // The IP is a broadcast address.\r |
| 1786 | //\r |
| 1787 | return EFI_INVALID_PARAMETER;\r |
| 1788 | }\r |
| 1789 | }\r |
| 1790 | \r |
| 1791 | EfiAcquireLock (&Private->Lock);\r |
| 1792 | \r |
| 1793 | if (This->Mode == NULL || !This->Mode->Started) {\r |
| 1794 | DEBUG ((DEBUG_ERROR, "BC was not started."));\r |
| 1795 | EfiReleaseLock (&Private->Lock);\r |
| 1796 | return EFI_NOT_STARTED;\r |
| 1797 | }\r |
| 1798 | \r |
| 1799 | if (Filter == NULL) {\r |
| 1800 | return EFI_INVALID_PARAMETER;\r |
| 1801 | }\r |
| 1802 | //\r |
| 1803 | // Issue BC command\r |
| 1804 | //\r |
| 1805 | StatCode = IpFilter (Private, Filter);\r |
| 1806 | \r |
| 1807 | //\r |
| 1808 | // Unlock the instance data\r |
| 1809 | //\r |
| 1810 | EfiReleaseLock (&Private->Lock);\r |
| 1811 | return StatCode;\r |
| 1812 | }\r |
| 1813 | \r |
| 1814 | \r |
| 1815 | /**\r |
| 1816 | Set the Base Code behavior parameters\r |
| 1817 | \r |
| 1818 | @param This Pointer to Pxe BaseCode Protocol\r |
| 1819 | @param AutoArpPtr Boolean to do ARP stuff\r |
| 1820 | @param SendGuidPtr Boolean whether or not to send GUID info\r |
| 1821 | @param TimeToLivePtr Value for Total time to live\r |
| 1822 | @param TypeOfServicePtr Value for Type of Service\r |
| 1823 | @param MakeCallbackPtr Boolean to determine if we make callbacks\r |
| 1824 | \r |
| 1825 | @retval 0 Successfully set the parameters\r |
| 1826 | @retval !0 Failed\r |
| 1827 | \r |
| 1828 | **/\r |
| 1829 | EFI_STATUS\r |
| 1830 | EFIAPI\r |
| 1831 | BcSetParameters (\r |
| 1832 | EFI_PXE_BASE_CODE_PROTOCOL *This,\r |
| 1833 | BOOLEAN *AutoArpPtr,\r |
| 1834 | BOOLEAN *SendGuidPtr,\r |
| 1835 | UINT8 *TimeToLivePtr,\r |
| 1836 | UINT8 *TypeOfServicePtr,\r |
| 1837 | BOOLEAN *MakeCallbackPtr\r |
| 1838 | )\r |
| 1839 | {\r |
| 1840 | EFI_PXE_BASE_CODE_MODE *PxebcMode;\r |
| 1841 | EFI_GUID TmpGuid;\r |
| 1842 | UINT8 *SerialNumberPtr;\r |
| 1843 | EFI_STATUS StatCode;\r |
| 1844 | PXE_BASECODE_DEVICE *Private;\r |
| 1845 | \r |
| 1846 | //\r |
| 1847 | // Lock the instance data and make sure started\r |
| 1848 | //\r |
| 1849 | StatCode = EFI_SUCCESS;\r |
| 1850 | \r |
| 1851 | if (This == NULL) {\r |
| 1852 | DEBUG ((DEBUG_ERROR, "BC *This pointer == NULL"));\r |
| 1853 | return EFI_INVALID_PARAMETER;\r |
| 1854 | }\r |
| 1855 | \r |
| 1856 | Private = CR (This, PXE_BASECODE_DEVICE, EfiBc, PXE_BASECODE_DEVICE_SIGNATURE);\r |
| 1857 | \r |
| 1858 | if (Private == NULL) {\r |
| 1859 | DEBUG ((DEBUG_ERROR, "PXE_BASECODE_DEVICE poiner == NULL"));\r |
| 1860 | return EFI_INVALID_PARAMETER;\r |
| 1861 | }\r |
| 1862 | \r |
| 1863 | EfiAcquireLock (&Private->Lock);\r |
| 1864 | \r |
| 1865 | if (This->Mode == NULL || !This->Mode->Started) {\r |
| 1866 | DEBUG ((DEBUG_ERROR, "BC was not started."));\r |
| 1867 | EfiReleaseLock (&Private->Lock);\r |
| 1868 | return EFI_NOT_STARTED;\r |
| 1869 | }\r |
| 1870 | \r |
| 1871 | DEBUG ((DEBUG_INFO, "\nSetParameters() Entry. "));\r |
| 1872 | \r |
| 1873 | PxebcMode = Private->EfiBc.Mode;\r |
| 1874 | StatCode = EFI_SUCCESS;\r |
| 1875 | \r |
| 1876 | if (SendGuidPtr != NULL) {\r |
| 1877 | if (*SendGuidPtr) {\r |
| 1878 | if (PxeBcLibGetSmbiosSystemGuidAndSerialNumber (&TmpGuid, &SerialNumberPtr) != EFI_SUCCESS) {\r |
| 1879 | return EFI_INVALID_PARAMETER;\r |
| 1880 | }\r |
| 1881 | }\r |
| 1882 | }\r |
| 1883 | \r |
| 1884 | if (MakeCallbackPtr != NULL) {\r |
| 1885 | if (*MakeCallbackPtr) {\r |
| 1886 | if (!SetMakeCallback (Private)) {\r |
| 1887 | return EFI_INVALID_PARAMETER;\r |
| 1888 | }\r |
| 1889 | }\r |
| 1890 | \r |
| 1891 | PxebcMode->MakeCallbacks = *MakeCallbackPtr;\r |
| 1892 | }\r |
| 1893 | \r |
| 1894 | if (AutoArpPtr != NULL) {\r |
| 1895 | PxebcMode->AutoArp = *AutoArpPtr;\r |
| 1896 | }\r |
| 1897 | \r |
| 1898 | if (SendGuidPtr != NULL) {\r |
| 1899 | PxebcMode->SendGUID = *SendGuidPtr;\r |
| 1900 | }\r |
| 1901 | \r |
| 1902 | if (TimeToLivePtr != NULL) {\r |
| 1903 | PxebcMode->TTL = *TimeToLivePtr;\r |
| 1904 | }\r |
| 1905 | \r |
| 1906 | if (TypeOfServicePtr != NULL) {\r |
| 1907 | PxebcMode->ToS = *TypeOfServicePtr;\r |
| 1908 | }\r |
| 1909 | //\r |
| 1910 | // Unlock the instance data\r |
| 1911 | //\r |
| 1912 | DEBUG ((DEBUG_INFO, "\nSetparameters() Exit = %xh ", StatCode));\r |
| 1913 | \r |
| 1914 | EfiReleaseLock (&Private->Lock);\r |
| 1915 | return StatCode;\r |
| 1916 | }\r |
| 1917 | //\r |
| 1918 | // //////////////////////////////////////////////////////////\r |
| 1919 | //\r |
| 1920 | // BC Set Station IP Routine\r |
| 1921 | //\r |
| 1922 | \r |
| 1923 | /**\r |
| 1924 | Set the station IP address\r |
| 1925 | \r |
| 1926 | @param This Pointer to Pxe BaseCode Protocol\r |
| 1927 | @param StationIpPtr Pointer to the requested IP address to set in base\r |
| 1928 | code\r |
| 1929 | @param SubnetMaskPtr Pointer to the requested subnet mask for the base\r |
| 1930 | code\r |
| 1931 | \r |
| 1932 | @retval EFI_SUCCESS Successfully set the parameters\r |
| 1933 | @retval EFI_NOT_STARTED BC has not started\r |
| 1934 | \r |
| 1935 | **/\r |
| 1936 | EFI_STATUS\r |
| 1937 | EFIAPI\r |
| 1938 | BcSetStationIP (\r |
| 1939 | IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r |
| 1940 | IN EFI_IP_ADDRESS *StationIpPtr,\r |
| 1941 | IN EFI_IP_ADDRESS *SubnetMaskPtr\r |
| 1942 | )\r |
| 1943 | {\r |
| 1944 | EFI_PXE_BASE_CODE_MODE *PxebcMode;\r |
| 1945 | EFI_STATUS StatCode;\r |
| 1946 | PXE_BASECODE_DEVICE *Private;\r |
| 1947 | UINT32 SubnetMask;\r |
| 1948 | \r |
| 1949 | //\r |
| 1950 | // Lock the instance data and make sure started\r |
| 1951 | //\r |
| 1952 | StatCode = EFI_SUCCESS;\r |
| 1953 | \r |
| 1954 | if (This == NULL) {\r |
| 1955 | DEBUG ((DEBUG_ERROR, "BC *This pointer == NULL"));\r |
| 1956 | return EFI_INVALID_PARAMETER;\r |
| 1957 | }\r |
| 1958 | \r |
| 1959 | Private = CR (This, PXE_BASECODE_DEVICE, EfiBc, PXE_BASECODE_DEVICE_SIGNATURE);\r |
| 1960 | \r |
| 1961 | if (Private == NULL) {\r |
| 1962 | DEBUG ((DEBUG_ERROR, "PXE_BASECODE_DEVICE poiner == NULL"));\r |
| 1963 | return EFI_INVALID_PARAMETER;\r |
| 1964 | }\r |
| 1965 | \r |
| 1966 | EfiAcquireLock (&Private->Lock);\r |
| 1967 | \r |
| 1968 | if (This->Mode == NULL || !This->Mode->Started) {\r |
| 1969 | DEBUG ((DEBUG_ERROR, "BC was not started."));\r |
| 1970 | StatCode = EFI_NOT_STARTED;\r |
| 1971 | goto RELEASE_LOCK;\r |
| 1972 | }\r |
| 1973 | \r |
| 1974 | PxebcMode = Private->EfiBc.Mode;\r |
| 1975 | \r |
| 1976 | if (!Private->GoodStationIp && ((StationIpPtr == NULL) || (SubnetMaskPtr == NULL))) {\r |
| 1977 | //\r |
| 1978 | // It's not allowed to only set one of the two addresses while there isn't a previous\r |
| 1979 | // GOOD address configuration.\r |
| 1980 | //\r |
| 1981 | StatCode = EFI_INVALID_PARAMETER;\r |
| 1982 | goto RELEASE_LOCK;\r |
| 1983 | }\r |
| 1984 | \r |
| 1985 | if (SubnetMaskPtr != NULL) {\r |
| 1986 | SubnetMask = SubnetMaskPtr->Addr[0];\r |
| 1987 | \r |
| 1988 | if (SubnetMask & (SubnetMask + 1)) {\r |
| 1989 | //\r |
| 1990 | // the subnet mask is valid if it's with leading continuous 1 bits.\r |
| 1991 | //\r |
| 1992 | StatCode = EFI_INVALID_PARAMETER;\r |
| 1993 | goto RELEASE_LOCK;\r |
| 1994 | }\r |
| 1995 | } else {\r |
| 1996 | SubnetMaskPtr = &PxebcMode->SubnetMask;\r |
| 1997 | SubnetMask = SubnetMaskPtr->Addr[0];\r |
| 1998 | }\r |
| 1999 | \r |
| 2000 | if (StationIpPtr == NULL) {\r |
| 2001 | StationIpPtr = &PxebcMode->StationIp;\r |
| 2002 | }\r |
| 2003 | \r |
| 2004 | if (!IS_INADDR_UNICAST (StationIpPtr) ||\r |
| 2005 | ((StationIpPtr->Addr[0] | SubnetMask) == BROADCAST_IPv4)) {\r |
| 2006 | //\r |
| 2007 | // The station IP is not a unicast address.\r |
| 2008 | //\r |
| 2009 | StatCode = EFI_INVALID_PARAMETER;\r |
| 2010 | goto RELEASE_LOCK;\r |
| 2011 | }\r |
| 2012 | \r |
| 2013 | PxebcMode->StationIp = *StationIpPtr;\r |
| 2014 | PxebcMode->SubnetMask = *SubnetMaskPtr;\r |
| 2015 | Private->GoodStationIp = TRUE;\r |
| 2016 | \r |
| 2017 | RELEASE_LOCK:\r |
| 2018 | //\r |
| 2019 | // Unlock the instance data\r |
| 2020 | //\r |
| 2021 | EfiReleaseLock (&Private->Lock);\r |
| 2022 | \r |
| 2023 | return StatCode;\r |
| 2024 | }\r |
| 2025 | \r |
| 2026 | EFI_DRIVER_BINDING_PROTOCOL mPxeBcDriverBinding = {\r |
| 2027 | PxeBcDriverSupported,\r |
| 2028 | PxeBcDriverStart,\r |
| 2029 | PxeBcDriverStop,\r |
| 2030 | 0xa,\r |
| 2031 | NULL,\r |
| 2032 | NULL\r |
| 2033 | };\r |
| 2034 | \r |
| 2035 | \r |
| 2036 | /**\r |
| 2037 | Test to see if this driver supports Controller. Any Controller\r |
| 2038 | than contains a Snp protocol can be supported.\r |
| 2039 | \r |
| 2040 | @param This Protocol instance pointer.\r |
| 2041 | @param Controller Handle of device to test.\r |
| 2042 | @param RemainingDevicePath Not used.\r |
| 2043 | \r |
| 2044 | @retval EFI_SUCCESS This driver supports this device.\r |
| 2045 | @retval EFI_ALREADY_STARTED This driver is already running on this device.\r |
| 2046 | @retval other This driver does not support this device.\r |
| 2047 | \r |
| 2048 | **/\r |
| 2049 | EFI_STATUS\r |
| 2050 | EFIAPI\r |
| 2051 | PxeBcDriverSupported (\r |
| 2052 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 2053 | IN EFI_HANDLE Controller,\r |
| 2054 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 2055 | )\r |
| 2056 | {\r |
| 2057 | EFI_STATUS Status;\r |
| 2058 | EFI_SIMPLE_NETWORK_PROTOCOL *SnpPtr;\r |
| 2059 | \r |
| 2060 | Status = gBS->OpenProtocol (\r |
| 2061 | Controller,\r |
| 2062 | &gEfiDevicePathProtocolGuid,\r |
| 2063 | NULL,\r |
| 2064 | This->DriverBindingHandle,\r |
| 2065 | Controller,\r |
| 2066 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r |
| 2067 | );\r |
| 2068 | \r |
| 2069 | if (EFI_ERROR (Status)) {\r |
| 2070 | return Status;\r |
| 2071 | }\r |
| 2072 | \r |
| 2073 | Status = gBS->OpenProtocol (\r |
| 2074 | Controller,\r |
| 2075 | &gEfiSimpleNetworkProtocolGuid,\r |
| 2076 | (VOID **) &SnpPtr,\r |
| 2077 | This->DriverBindingHandle,\r |
| 2078 | Controller,\r |
| 2079 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 2080 | );\r |
| 2081 | if (EFI_ERROR (Status)) {\r |
| 2082 | return Status;\r |
| 2083 | }\r |
| 2084 | \r |
| 2085 | gBS->CloseProtocol (\r |
| 2086 | Controller,\r |
| 2087 | &gEfiSimpleNetworkProtocolGuid,\r |
| 2088 | This->DriverBindingHandle,\r |
| 2089 | Controller\r |
| 2090 | );\r |
| 2091 | \r |
| 2092 | return Status;\r |
| 2093 | }\r |
| 2094 | \r |
| 2095 | \r |
| 2096 | /**\r |
| 2097 | Start the Base code driver.\r |
| 2098 | \r |
| 2099 | @param This Protocol instance pointer.\r |
| 2100 | @param Controller Handle of device to test.\r |
| 2101 | @param RemainingDevicePath Not used.\r |
| 2102 | \r |
| 2103 | @retval EFI_SUCCESS This driver supports this device.\r |
| 2104 | @retval EFI_ALREADY_STARTED This driver is already running on this device.\r |
| 2105 | @retval other This driver does not support this device.\r |
| 2106 | \r |
| 2107 | **/\r |
| 2108 | EFI_STATUS\r |
| 2109 | EFIAPI\r |
| 2110 | PxeBcDriverStart (\r |
| 2111 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 2112 | IN EFI_HANDLE Controller,\r |
| 2113 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
| 2114 | )\r |
| 2115 | {\r |
| 2116 | EFI_STATUS Status;\r |
| 2117 | PXE_BASECODE_DEVICE *Private;\r |
| 2118 | LOADFILE_DEVICE *pLF;\r |
| 2119 | \r |
| 2120 | //\r |
| 2121 | // Allocate structures needed by BaseCode and LoadFile protocols.\r |
| 2122 | //\r |
| 2123 | Private = AllocateZeroPool (sizeof (PXE_BASECODE_DEVICE));\r |
| 2124 | \r |
| 2125 | if (Private == NULL ) {\r |
| 2126 | DEBUG ((EFI_D_NET, "\nBcNotifySnp() Could not alloc PXE_BASECODE_DEVICE structure.\n"));\r |
| 2127 | return EFI_OUT_OF_RESOURCES;\r |
| 2128 | }\r |
| 2129 | \r |
| 2130 | pLF = AllocateZeroPool (sizeof (LOADFILE_DEVICE));\r |
| 2131 | if (pLF == NULL) {\r |
| 2132 | DEBUG ((EFI_D_NET, "\nBcNotifySnp() Could not alloc LOADFILE_DEVICE structure.\n"));\r |
| 2133 | FreePool (Private);\r |
| 2134 | return EFI_OUT_OF_RESOURCES;\r |
| 2135 | }\r |
| 2136 | \r |
| 2137 | Private->EfiBc.Mode = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_MODE));\r |
| 2138 | if (Private->EfiBc.Mode == NULL) {\r |
| 2139 | DEBUG ((EFI_D_NET, "\nBcNotifySnp() Could not alloc Mode structure.\n"));\r |
| 2140 | FreePool (Private);\r |
| 2141 | FreePool (pLF);\r |
| 2142 | return EFI_OUT_OF_RESOURCES;\r |
| 2143 | }\r |
| 2144 | //\r |
| 2145 | // Lock access, just in case\r |
| 2146 | //\r |
| 2147 | EfiInitializeLock (&Private->Lock, TPL_CALLBACK);\r |
| 2148 | EfiAcquireLock (&Private->Lock);\r |
| 2149 | \r |
| 2150 | EfiInitializeLock (&pLF->Lock, TPL_CALLBACK);\r |
| 2151 | EfiAcquireLock (&pLF->Lock);\r |
| 2152 | \r |
| 2153 | //\r |
| 2154 | // Initialize PXE structure\r |
| 2155 | //\r |
| 2156 | //\r |
| 2157 | // First initialize the internal 'private' data that the application\r |
| 2158 | // does not see.\r |
| 2159 | //\r |
| 2160 | Private->Signature = PXE_BASECODE_DEVICE_SIGNATURE;\r |
| 2161 | Private->Handle = Controller;\r |
| 2162 | \r |
| 2163 | //\r |
| 2164 | // Get the NII interface\r |
| 2165 | //\r |
| 2166 | Status = gBS->OpenProtocol (\r |
| 2167 | Controller,\r |
| 2168 | &gEfiNetworkInterfaceIdentifierProtocolGuid_31,\r |
| 2169 | (VOID **) &Private->NiiPtr,\r |
| 2170 | This->DriverBindingHandle,\r |
| 2171 | Controller,\r |
| 2172 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 2173 | );\r |
| 2174 | \r |
| 2175 | if (EFI_ERROR (Status)) {\r |
| 2176 | Status = gBS->OpenProtocol (\r |
| 2177 | Controller,\r |
| 2178 | &gEfiNetworkInterfaceIdentifierProtocolGuid,\r |
| 2179 | (VOID **) &Private->NiiPtr,\r |
| 2180 | This->DriverBindingHandle,\r |
| 2181 | Controller,\r |
| 2182 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 2183 | );\r |
| 2184 | \r |
| 2185 | if (EFI_ERROR (Status)) {\r |
| 2186 | goto PxeBcError;\r |
| 2187 | }\r |
| 2188 | }\r |
| 2189 | //\r |
| 2190 | // Get the Snp interface\r |
| 2191 | //\r |
| 2192 | Status = gBS->OpenProtocol (\r |
| 2193 | Controller,\r |
| 2194 | &gEfiSimpleNetworkProtocolGuid,\r |
| 2195 | (VOID **) &Private->SimpleNetwork,\r |
| 2196 | This->DriverBindingHandle,\r |
| 2197 | Controller,\r |
| 2198 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
| 2199 | );\r |
| 2200 | \r |
| 2201 | if (EFI_ERROR (Status)) {\r |
| 2202 | goto PxeBcError;\r |
| 2203 | }\r |
| 2204 | \r |
| 2205 | //\r |
| 2206 | // Next, initialize the external 'public' data that\r |
| 2207 | // the application does see.\r |
| 2208 | //\r |
| 2209 | Private->EfiBc.Revision = EFI_PXE_BASE_CODE_PROTOCOL_REVISION;\r |
| 2210 | Private->EfiBc.Start = BcStart;\r |
| 2211 | Private->EfiBc.Stop = BcStop;\r |
| 2212 | Private->EfiBc.Dhcp = BcDhcp;\r |
| 2213 | Private->EfiBc.Discover = BcDiscover;\r |
| 2214 | Private->EfiBc.Mtftp = BcMtftp;\r |
| 2215 | Private->EfiBc.UdpWrite = BcUdpWrite;\r |
| 2216 | Private->EfiBc.UdpRead = BcUdpRead;\r |
| 2217 | Private->EfiBc.Arp = BcArp;\r |
| 2218 | Private->EfiBc.SetIpFilter = BcIpFilter;\r |
| 2219 | Private->EfiBc.SetParameters = BcSetParameters;\r |
| 2220 | Private->EfiBc.SetStationIp = BcSetStationIP;\r |
| 2221 | Private->EfiBc.SetPackets = BcSetPackets;\r |
| 2222 | \r |
| 2223 | //\r |
| 2224 | // Initialize BaseCode Mode structure\r |
| 2225 | //\r |
| 2226 | Private->EfiBc.Mode->Started = FALSE;\r |
| 2227 | Private->EfiBc.Mode->TTL = DEFAULT_TTL;\r |
| 2228 | Private->EfiBc.Mode->ToS = DEFAULT_ToS;\r |
| 2229 | Private->EfiBc.Mode->UsingIpv6 = FALSE;\r |
| 2230 | Private->EfiBc.Mode->AutoArp = TRUE;\r |
| 2231 | \r |
| 2232 | //\r |
| 2233 | // Set to PXE_TRUE by the BC constructor if this BC\r |
| 2234 | // implementation supports IPv6.\r |
| 2235 | //\r |
| 2236 | Private->EfiBc.Mode->Ipv6Supported = SUPPORT_IPV6;\r |
| 2237 | \r |
| 2238 | #if SUPPORT_IPV6\r |
| 2239 | Private->EfiBc.Mode->Ipv6Available = Private->NiiPtr->Ipv6Supported;\r |
| 2240 | #else\r |
| 2241 | Private->EfiBc.Mode->Ipv6Available = FALSE;\r |
| 2242 | #endif\r |
| 2243 | //\r |
| 2244 | // Set to TRUE by the BC constructor if this BC\r |
| 2245 | // implementation supports BIS.\r |
| 2246 | //\r |
| 2247 | Private->EfiBc.Mode->BisSupported = TRUE;\r |
| 2248 | Private->EfiBc.Mode->BisDetected = PxebcBisDetect (Private);\r |
| 2249 | \r |
| 2250 | //\r |
| 2251 | // Initialize LoadFile structure.\r |
| 2252 | //\r |
| 2253 | pLF->Signature = LOADFILE_DEVICE_SIGNATURE;\r |
| 2254 | pLF->LoadFile.LoadFile = LoadFile;\r |
| 2255 | pLF->Private = Private;\r |
| 2256 | \r |
| 2257 | //\r |
| 2258 | // Install protocol interfaces.\r |
| 2259 | //\r |
| 2260 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
| 2261 | &Controller,\r |
| 2262 | &gEfiPxeBaseCodeProtocolGuid,\r |
| 2263 | &Private->EfiBc,\r |
| 2264 | &gEfiLoadFileProtocolGuid,\r |
| 2265 | &pLF->LoadFile,\r |
| 2266 | NULL\r |
| 2267 | );\r |
| 2268 | \r |
| 2269 | if (EFI_ERROR (Status)) {\r |
| 2270 | gBS->CloseProtocol (\r |
| 2271 | Controller,\r |
| 2272 | &gEfiSimpleNetworkProtocolGuid,\r |
| 2273 | This->DriverBindingHandle,\r |
| 2274 | Controller\r |
| 2275 | );\r |
| 2276 | \r |
| 2277 | goto PxeBcError;\r |
| 2278 | }\r |
| 2279 | //\r |
| 2280 | // Release locks.\r |
| 2281 | //\r |
| 2282 | EfiReleaseLock (&pLF->Lock);\r |
| 2283 | EfiReleaseLock (&Private->Lock);\r |
| 2284 | return Status;\r |
| 2285 | \r |
| 2286 | PxeBcError: ;\r |
| 2287 | gBS->FreePool (Private->EfiBc.Mode);\r |
| 2288 | gBS->FreePool (Private);\r |
| 2289 | gBS->FreePool (pLF);\r |
| 2290 | return Status;\r |
| 2291 | }\r |
| 2292 | \r |
| 2293 | \r |
| 2294 | /**\r |
| 2295 | Stop the Base code driver.\r |
| 2296 | \r |
| 2297 | @param This Protocol instance pointer.\r |
| 2298 | @param Controller Handle of device to test.\r |
| 2299 | @param NumberOfChildren Not used\r |
| 2300 | @param ChildHandleBuffer Not used\r |
| 2301 | \r |
| 2302 | @retval EFI_SUCCESS This driver supports this device.\r |
| 2303 | @retval EFI_ALREADY_STARTED This driver is already running on this device.\r |
| 2304 | @retval other This driver does not support this device.\r |
| 2305 | \r |
| 2306 | **/\r |
| 2307 | EFI_STATUS\r |
| 2308 | EFIAPI\r |
| 2309 | PxeBcDriverStop (\r |
| 2310 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
| 2311 | IN EFI_HANDLE Controller,\r |
| 2312 | IN UINTN NumberOfChildren,\r |
| 2313 | IN EFI_HANDLE *ChildHandleBuffer\r |
| 2314 | )\r |
| 2315 | {\r |
| 2316 | EFI_STATUS Status;\r |
| 2317 | EFI_LOAD_FILE_PROTOCOL *LfProtocol;\r |
| 2318 | LOADFILE_DEVICE *LoadDevice;\r |
| 2319 | \r |
| 2320 | //\r |
| 2321 | // Get our context back.\r |
| 2322 | //\r |
| 2323 | Status = gBS->OpenProtocol (\r |
| 2324 | Controller,\r |
| 2325 | &gEfiLoadFileProtocolGuid,\r |
| 2326 | (VOID **) &LfProtocol,\r |
| 2327 | This->DriverBindingHandle,\r |
| 2328 | Controller,\r |
| 2329 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| 2330 | );\r |
| 2331 | \r |
| 2332 | if (EFI_ERROR (Status)) {\r |
| 2333 | return EFI_UNSUPPORTED;\r |
| 2334 | }\r |
| 2335 | \r |
| 2336 | LoadDevice = EFI_LOAD_FILE_DEV_FROM_THIS (LfProtocol);\r |
| 2337 | \r |
| 2338 | Status = gBS->UninstallMultipleProtocolInterfaces (\r |
| 2339 | Controller,\r |
| 2340 | &gEfiLoadFileProtocolGuid,\r |
| 2341 | &LoadDevice->LoadFile,\r |
| 2342 | &gEfiPxeBaseCodeProtocolGuid,\r |
| 2343 | &LoadDevice->Private->EfiBc,\r |
| 2344 | NULL\r |
| 2345 | );\r |
| 2346 | \r |
| 2347 | if (!EFI_ERROR (Status)) {\r |
| 2348 | \r |
| 2349 | Status = gBS->CloseProtocol (\r |
| 2350 | Controller,\r |
| 2351 | &gEfiSimpleNetworkProtocolGuid,\r |
| 2352 | This->DriverBindingHandle,\r |
| 2353 | Controller\r |
| 2354 | );\r |
| 2355 | \r |
| 2356 | gBS->FreePool (LoadDevice->Private->EfiBc.Mode);\r |
| 2357 | gBS->FreePool (LoadDevice->Private);\r |
| 2358 | gBS->FreePool (LoadDevice);\r |
| 2359 | }\r |
| 2360 | \r |
| 2361 | return Status;\r |
| 2362 | }\r |
| 2363 | \r |
| 2364 | \r |
| 2365 | /**\r |
| 2366 | Initialize the base code drivers and install the driver binding\r |
| 2367 | \r |
| 2368 | Standard EFI Image Entry\r |
| 2369 | \r |
| 2370 | @retval EFI_SUCCESS This driver was successfully bound\r |
| 2371 | \r |
| 2372 | **/\r |
| 2373 | EFI_STATUS\r |
| 2374 | EFIAPI\r |
| 2375 | InitializeBCDriver (\r |
| 2376 | IN EFI_HANDLE ImageHandle,\r |
| 2377 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 2378 | )\r |
| 2379 | {\r |
| 2380 | EFI_STATUS Status;\r |
| 2381 | \r |
| 2382 | //\r |
| 2383 | // Initialize EFI library\r |
| 2384 | //\r |
| 2385 | Status = EfiLibInstallAllDriverProtocols (\r |
| 2386 | ImageHandle,\r |
| 2387 | SystemTable,\r |
| 2388 | &mPxeBcDriverBinding,\r |
| 2389 | NULL,\r |
| 2390 | COMPONENT_NAME,\r |
| 2391 | NULL,\r |
| 2392 | NULL\r |
| 2393 | );\r |
| 2394 | \r |
| 2395 | InitArpHeader ();\r |
| 2396 | OptionsStrucInit ();\r |
| 2397 | \r |
| 2398 | return EFI_SUCCESS;\r |
| 2399 | }\r |
| 2400 | \r |
| 2401 | /* eof - bc.c */\r |
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