com32/include/syslinux/pxe.h

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   Permission is hereby granted, free of charge, to any person
   6  *   obtaining a copy of this software and associated documentation
   7  *   files (the "Software"), to deal in the Software without
   8  *   restriction, including without limitation the rights to use,
   9  *   copy, modify, merge, publish, distribute, sublicense, and/or
  10  *   sell copies of the Software, and to permit persons to whom
  11  *   the Software is furnished to do so, subject to the following
  12  *   conditions:
  13  *
  14  *   The above copyright notice and this permission notice shall
  15  *   be included in all copies or substantial portions of the Software.
  16  *
  17  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  19  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  21  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  *   OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * ----------------------------------------------------------------------- */
  27
  28 /*
  29  * syslinux/pxe.h
  30  *
  31  * PXE definitions and function prototypes for SYSLINUX
  32  */
  33
  34 #ifndef _SYSLINUX_PXE_H
  35 #define _SYSLINUX_PXE_H
  36
  37 #include <stdint.h>
  38 #include <netinet/in.h>
  39 #include <klibc/compiler.h>
  40
  41 /* PXE spec structures and definitions.  These mostly follow the PXE
  42    spec, except when the PXE spec is unnecessarily stupid.  Of course,
  43    that is most of the time. */
  44
  45 /* Basic types; use Unix-like _t convention instead of SCREAMING; also
  46    re-use types we already have, like in_addr_t. */
  47
  48 typedef uint16_t pxenv_status_t;
  49
  50 #define MAC_ADDR_LEN    16
  51 typedef uint8_t mac_addr_t[MAC_ADDR_LEN];
  52
  53 /* "Protected mode segment descriptor" according to PXE... */
  54 typedef struct {
  55   uint16_t segaddr;
  56   uint32_t physaddr;
  57   uint16_t segsize;
  58 } __packed pxe_segdesc_t;
  59
  60 typedef struct {
  61   uint16_t offs;
  62   uint16_t seg;
  63 } segoff16_t;
  64
  65 /* Function calling structures and constants */
  66
  67 typedef struct s_PXENV_GET_CACHED_INFO
  68 {
  69   pxenv_status_t Status;
  70   uint16_t PacketType;
  71 #define PXENV_PACKET_TYPE_DHCP_DISCOVER 1
  72 #define PXENV_PACKET_TYPE_DHCP_ACK 2
  73 #define PXENV_PACKET_TYPE_CACHED_REPLY 3
  74   uint16_t BufferSize;
  75   segoff16_t Buffer;
  76   uint16_t BufferLimit;
  77 } __packed t_PXENV_GET_CACHED_INFO;
  78
  79 typedef struct s_PXENV_START_UNDI {
  80   pxenv_status_t Status;
  81   uint16_t AX;
  82   uint16_t BX;
  83   uint16_t DX;
  84   uint16_t DI;
  85   uint16_t ES;
  86 } __packed t_PXENV_START_UNDI;
  87
  88 typedef struct s_PXENV_STOP_UNDI
  89 {
  90   pxenv_status_t Status;
  91 } __packed t_PXENV_STOP_UNDI;
  92
  93 typedef struct s_PXENV_START_BASE
  94 {
  95   pxenv_status_t Status;
  96 } __packed t_PXENV_START_BASE;
  97
  98 typedef struct s_PXENV_STOP_BASE
  99 {
 100   pxenv_status_t Status;
 101 } __packed t_PXENV_STOP_BASE;
 102
 103 typedef struct s_PXENV_TFTP_OPEN
 104 {
 105   pxenv_status_t Status;
 106   in_addr_t ServerIPAddress;
 107   in_addr_t GatewayIPAddress;
 108   uint8_t FileName[128];
 109   in_port_t TFTPPort;
 110   uint16_t PacketSize;
 111 } __packed t_PXENV_TFTP_OPEN;
 112
 113 typedef struct s_PXENV_TFTP_CLOSE
 114 {
 115   pxenv_status_t Status;
 116 } __packed t_PXENV_TFTP_CLOSE;
 117
 118 typedef struct s_PXENV_TFTP_READ
 119 {
 120   pxenv_status_t Status;
 121   uint16_t PacketNumber;
 122   uint16_t BufferSize;
 123   segoff16_t Buffer;
 124 } __packed t_PXENV_TFTP_READ;
 125
 126 typedef struct s_PXENV_TFTP_READ_FILE
 127 {
 128   pxenv_status_t Status;
 129   uint8_t FileName[128];
 130   uint32_t BufferSize;
 131   void * Buffer;
 132   in_addr_t ServerIPAddress;
 133   in_addr_t GatewayIPAddress;
 134   in_addr_t McastIPAddress;
 135   in_port_t TFTPClntPort;
 136   in_port_t TFTPSrvPort;
 137   uint16_t TFTPOpenTimeOut;
 138   uint16_t TFTPReopenDelay;
 139 } __packed t_PXENV_TFTP_READ_FILE;
 140
 141 typedef struct s_PXENV_TFTP_GET_FSIZE
 142 {
 143   pxenv_status_t Status;
 144   in_addr_t ServerIPAddress;
 145   in_addr_t GatewayIPAddress;
 146   uint8_t FileName[128];
 147   uint32_t FileSize;
 148 } __packed t_PXENV_TFTP_GET_FSIZE;
 149
 150 typedef struct s_PXENV_UDP_OPEN
 151 {
 152   pxenv_status_t status;
 153   in_addr_t src_ip;
 154 } __packed t_PXENV_UDP_OPEN;
 155
 156 typedef struct s_PXENV_UDP_CLOSE
 157 {
 158   pxenv_status_t status;
 159 } __packed t_PXENV_UDP_CLOSE;
 160
 161 typedef struct s_PXENV_UDP_WRITE
 162 {
 163   pxenv_status_t status;
 164   in_addr_t ip;
 165   in_addr_t gw;
 166   in_port_t src_port;
 167   in_port_t dst_port;
 168   uint16_t buffer_size;
 169   segoff16_t buffer;
 170 } __packed t_PXENV_UDP_WRITE;
 171
 172 typedef struct s_PXENV_UDP_READ
 173 {
 174   pxenv_status_t status;
 175   in_addr_t src_ip;
 176   in_addr_t dest_ip;
 177   in_port_t s_port;
 178   in_port_t d_port;
 179   uint16_t buffer_size;
 180   segoff16_t buffer;
 181 } __packed t_PXENV_UDP_READ;
 182
 183 typedef struct s_PXENV_UNDI_STARTUP
 184 {
 185   pxenv_status_t Status;
 186 } __packed t_PXENV_UNDI_STARTUP;
 187
 188 typedef struct s_PXENV_UNDI_CLEANUP {
 189   pxenv_status_t Status;
 190 } __packed t_PXENV_UNDI_CLEANUP;
 191
 192 typedef struct s_PXENV_UNDI_INITIALIZE {
 193   pxenv_status_t Status;
 194   void * ProtocolIni;
 195   uint8_t reserved[8];
 196 } __packed t_PXENV_UNDI_INITIALIZE;
 197
 198 #define MAXNUM_MCADDR 8
 199 typedef struct s_PXENV_UNDI_MCAST_ADDRESS
 200 {
 201   uint16_t MCastAddrCount;
 202   mac_addr_t McastAddr[MAXNUM_MCADDR];
 203 } __packed t_PXENV_UNDI_MCAST_ADDRESS;
 204
 205 typedef struct s_PXENV_UNDI_RESET
 206 {
 207   pxenv_status_t Status;
 208   t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
 209 } __packed t_PXENV_UNDI_RESET;
 210
 211 typedef struct s_PXENV_UNDI_SHUTDOWN
 212 {
 213   pxenv_status_t Status;
 214 } __packed t_PXENV_UNDI_SHUTDOWN;
 215
 216 typedef struct s_PXENV_UNDI_OPEN
 217 {
 218   pxenv_status_t Status;
 219   uint16_t OpenFlag;
 220   uint16_t PktFilter;
 221 #define FLTR_DIRECTED 0x0001
 222 #define FLTR_BRDCST 0x0002
 223 #define FLTR_PRMSCS 0x0004
 224 #define FLTR_SRC_RTG 0x0008
 225   t_PXENV_UNDI_MCAST_ADDRESS
 226   R_Mcast_Buf;
 227 } __packed t_PXENV_UNDI_OPEN;
 228
 229 typedef struct s_PXENV_UNDI_CLOSE
 230 {
 231   pxenv_status_t Status;
 232 } __packed t_PXENV_UNDI_CLOSE;
 233
 234 typedef struct s_PXENV_UNDI_TRANSMIT
 235 {
 236   pxenv_status_t Status;
 237   uint8_t Protocol;
 238 #define P_UNKNOWN 0
 239 #define P_IP 1
 240 #define P_ARP 2
 241 #define P_RARP 3
 242   uint8_t XmitFlag;
 243 #define XMT_DESTADDR 0x0000
 244 #define XMT_BROADCAST 0x0001
 245   segoff16_t DestAddr;
 246   segoff16_t TBD;
 247   uint32_t Reserved[2];
 248 } __packed t_PXENV_UNDI_TRANSMIT;
 249 #define MAX_DATA_BLKS 8
 250 typedef struct s_PXENV_UNDI_TBD
 251 {
 252   uint16_t ImmedLength;
 253   segoff16_t Xmit;
 254   uint16_t DataBlkCount;
 255   struct DataBlk
 256   {
 257     uint8_t TDPtrType;
 258     uint8_t TDRsvdByte;
 259     uint16_t TDDataLen;
 260     segoff16_t TDDataPtr;
 261   } DataBlock[MAX_DATA_BLKS];
 262 } __packed t_PXENV_UNDI_TBD;
 263
 264 typedef struct s_PXENV_UNDI_SET_MCAST_ADDRESS
 265 {
 266   pxenv_status_t Status;
 267   t_PXENV_UNDI_MCAST_ADDRESS
 268   R_Mcast_Buf;
 269 } __packed t_PXENV_UNDI_SET_MCAST_ADDR;
 270
 271 typedef struct s_PXENV_UNDI_SET_STATION_ADDRESS
 272 {
 273   pxenv_status_t Status;
 274   mac_addr_t StationAddress;
 275 } __packed t_PXENV_UNDI_SET_STATION_ADDR;
 276
 277 typedef struct s_PXENV_UNDI_SET_PACKET_FILTER
 278 {
 279   pxenv_status_t Status;
 280   uint8_t filter;
 281 } __packed t_PXENV_UNDI_SET_PACKET_FILTER;
 282
 283 typedef struct s_PXENV_UNDI_GET_INFORMATION
 284 {
 285   pxenv_status_t Status;
 286   uint16_t BaseIo;
 287   uint16_t IntNumber;
 288   uint16_t MaxTranUnit;
 289   uint16_t HwType;
 290 #define ETHER_TYPE 1
 291 #define EXP_ETHER_TYPE 2
 292 #define IEEE_TYPE 6
 293 #define ARCNET_TYPE 7
 294   uint16_t HwAddrLen;
 295   mac_addr_t CurrentNodeAddress;
 296   mac_addr_t PermNodeAddress;
 297   uint16_t ROMAddress;
 298   uint16_t RxBufCt;
 299   uint16_t TxBufCt;
 300 } __packed t_PXENV_UNDI_GET_INFORMATION;
 301
 302 typedef struct s_PXENV_UNDI_GET_STATISTICS
 303 {
 304   pxenv_status_t Status;
 305   uint32_t XmtGoodFrames;
 306   uint32_t RcvGoodFrames;
 307   uint32_t RcvCRCErrors;
 308   uint32_t RcvResourceErrors;
 309 } __packed t_PXENV_UNDI_GET_STATISTICS;
 310
 311 typedef struct s_PXENV_UNDI_CLEAR_STATISTICS
 312 {
 313   pxenv_status_t Status;
 314 } __packed t_PXENV_UNDI_CLEAR_STATISTICS;
 315
 316 typedef struct s_PXENV_UNDI_INITIATE_DIAGS
 317 {
 318   pxenv_status_t Status;
 319 } __packed t_PXENV_UNDI_INITIATE_DIAGS;
 320
 321 typedef struct s_PXENV_UNDI_FORCE_INTERRUPT
 322 {
 323   pxenv_status_t Status;
 324 } __packed t_PXENV_UNDI_FORCE_INTERRUPT;
 325
 326 typedef struct s_PXENV_UNDI_GET_MCAST_ADDRESS
 327 {
 328   pxenv_status_t Status;
 329   in_addr_t InetAddr;
 330   mac_addr_t MediaAddr;
 331 } __packed t_PXENV_UNDI_GET_MCAST_ADDR;
 332
 333 typedef struct s_PXENV_UNDI_GET_NIC_TYPE
 334 {
 335   pxenv_status_t Status;
 336   uint8_t NicType;
 337 #define PCI_NIC 2
 338 #define PnP_NIC 3
 339 #define CardBus_NIC 4
 340   union {
 341     struct {
 342       uint16_t Vendor_ID;
 343       uint16_t Dev_ID;
 344       uint8_t Base_Class;
 345       uint8_t Sub_Class;
 346       uint8_t Prog_Intf;
 347       uint8_t Rev;
 348       uint16_t BusDevFunc;
 349       uint16_t SubVendor_ID;
 350       uint16_t SubDevice_ID;
 351     } pci, cardbus;
 352     struct {
 353       uint32_t EISA_Dev_ID;
 354       uint8_t Base_Class;
 355       uint8_t Sub_Class;
 356       uint8_t Prog_Intf;
 357       uint16_t CardSelNum;
 358     } __packed pnp;
 359   } __packed info;
 360 } __packed t_PXENV_UNDI_GET_NIC_TYPE;
 361
 362 typedef struct s_PXENV_UNDI_GET_IFACE_INFO
 363 {
 364   pxenv_status_t Status;
 365   uint8_t IfaceType[16];
 366   uint32_t LinkSpeed;
 367   uint32_t ServiceFlags;
 368   uint32_t Reserved[4];
 369 } __packed t_PXENV_UNDI_GET_NDIS_INFO;
 370
 371 typedef struct s_PXENV_UNDI_GET_STATE
 372 {
 373 #define PXE_UNDI_GET_STATE_STARTED 1
 374 #define PXE_UNDI_GET_STATE_INITIALIZED 2
 375 #define PXE_UNDI_GET_STATE_OPENED 3
 376   pxenv_status_t Status;
 377   uint8_t UNDIstate;
 378 } __packed t_PXENV_UNDI_GET_STATE;
 379
 380 typedef struct s_PXENV_UNDI_ISR
 381 {
 382   pxenv_status_t Status;
 383   uint16_t FuncFlag;
 384   uint16_t BufferLength;
 385   uint16_t FrameLength;
 386   uint16_t FrameHeaderLength;
 387   segoff16_t Frame;
 388   uint8_t ProtType;
 389   uint8_t PktType;
 390 } __packed t_PXENV_UNDI_ISR;
 391 #define PXENV_UNDI_ISR_IN_START 1
 392 #define PXENV_UNDI_ISR_IN_PROCESS 2
 393 #define PXENV_UNDI_ISR_IN_GET_NEXT 3
 394 /* One of these will be returned for
 395    PXENV_UNDI_ISR_IN_START */
 396 #define PXENV_UNDI_ISR_OUT_OURS 0
 397 #define PXENV_UNDI_USR_OUT_NOT_OURS 1
 398 /* One of these will be returned for
 399    PXENV_UNDI_ISR_IN_PROCESS and
 400    PXENV_UNDI_ISR_IN_GET_NEXT */
 401 #define PXENV_UNDI_ISR_OUT_DONE 0
 402 #define PXENV_UNDI_ISR_OUT_TRANSMIT 2
 403 #define PXENV_UNDI_ISR_OUT_RECEIVE 3
 404 #define PXENV_UNDI_ISR_OUT_BUSY 4
 405
 406 /* Function numbers and error codes */
 407
 408 #define PXENV_TFTP_OPEN                 0x0020
 409 #define PXENV_TFTP_CLOSE                0x0021
 410 #define PXENV_TFTP_READ                 0x0022
 411 #define PXENV_TFTP_READ_FILE            0x0023
 412 #define PXENV_TFTP_READ_FILE_PMODE      0x0024
 413 #define PXENV_TFTP_GET_FSIZE            0x0025
 414
 415 #define PXENV_UDP_OPEN                  0x0030
 416 #define PXENV_UDP_CLOSE                 0x0031
 417 #define PXENV_UDP_READ                  0x0032
 418 #define PXENV_UDP_WRITE                 0x0033
 419
 420 #define PXENV_START_UNDI                0x0000
 421 #define PXENV_UNDI_STARTUP              0x0001
 422 #define PXENV_UNDI_CLEANUP              0x0002
 423 #define PXENV_UNDI_INITIALIZE           0x0003
 424 #define PXENV_UNDI_RESET_NIC            0x0004
 425 #define PXENV_UNDI_SHUTDOWN             0x0005
 426 #define PXENV_UNDI_OPEN                 0x0006
 427 #define PXENV_UNDI_CLOSE                0x0007
 428 #define PXENV_UNDI_TRANSMIT             0x0008
 429 #define PXENV_UNDI_SET_MCAST_ADDR       0x0009
 430 #define PXENV_UNDI_SET_STATION_ADDR     0x000A
 431 #define PXENV_UNDI_SET_PACKET_FILTER    0x000B
 432 #define PXENV_UNDI_GET_INFORMATION      0x000C
 433 #define PXENV_UNDI_GET_STATISTICS       0x000D
 434 #define PXENV_UNDI_CLEAR_STATISTICS     0x000E
 435 #define PXENV_UNDI_INITIATE_DIAGS       0x000F
 436 #define PXENV_UNDI_FORCE_INTERRUPT      0x0010
 437 #define PXENV_UNDI_GET_MCAST_ADDR       0x0011
 438 #define PXENV_UNDI_GET_NIC_TYPE         0x0012
 439 #define PXENV_UNDI_GET_IFACE_INFO       0x0013
 440 #define PXENV_UNDI_ISR                  0x0014
 441 #define PXENV_STOP_UNDI                 0x0015  /* Overlap...? */
 442 #define PXENV_UNDI_GET_STATE            0x0015  /* Overlap...? */
 443
 444 #define PXENV_UNLOAD_STACK              0x0070
 445 #define PXENV_GET_CACHED_INFO           0x0071
 446 #define PXENV_RESTART_DHCP              0x0072
 447 #define PXENV_RESTART_TFTP              0x0073
 448 #define PXENV_MODE_SWITCH               0x0074
 449 #define PXENV_START_BASE                0x0075
 450 #define PXENV_STOP_BASE                 0x0076
 451
 452 #define PXENV_EXIT_SUCCESS 0x0000
 453 #define PXENV_EXIT_FAILURE 0x0001
 454
 455 #define PXENV_STATUS_SUCCESS 0x00
 456 #define PXENV_STATUS_FAILURE 0x01
 457 #define PXENV_STATUS_BAD_FUNC 0x02
 458 #define PXENV_STATUS_UNSUPPORTED 0x03
 459 #define PXENV_STATUS_KEEP_UNDI 0x04
 460 #define PXENV_STATUS_KEEP_ALL 0x05
 461 #define PXENV_STATUS_OUT_OF_RESOURCES 0x06
 462 #define PXENV_STATUS_ARP_TIMEOUT 0x11
 463 #define PXENV_STATUS_UDP_CLOSED 0x18
 464 #define PXENV_STATUS_UDP_OPEN 0x19
 465 #define PXENV_STATUS_TFTP_CLOSED 0x1A
 466 #define PXENV_STATUS_TFTP_OPEN 0x1B
 467 #define PXENV_STATUS_MCOPY_PROBLEM 0x20
 468 #define PXENV_STATUS_BIS_INTEGRITY_FAILURE 0x21
 469 #define PXENV_STATUS_BIS_VALIDATE_FAILURE 0x22
 470 #define PXENV_STATUS_BIS_INIT_FAILURE 0x23
 471 #define PXENV_STATUS_BIS_SHUTDOWN_FAILURE 0x24
 472 #define PXENV_STATUS_BIS_GBOA_FAILURE 0x25
 473 #define PXENV_STATUS_BIS_FREE_FAILURE 0x26
 474 #define PXENV_STATUS_BIS_GSI_FAILURE 0x27
 475 #define PXENV_STATUS_BIS_BAD_CKSUM 0x28
 476 #define PXENV_STATUS_TFTP_CANNOT_ARP_ADDRESS 0x30
 477 #define PXENV_STATUS_TFTP_OPEN_TIMEOUT 0x32
 478
 479 #define PXENV_STATUS_TFTP_UNKNOWN_OPCODE 0x33
 480 #define PXENV_STATUS_TFTP_READ_TIMEOUT 0x35
 481 #define PXENV_STATUS_TFTP_ERROR_OPCODE 0x36
 482 #define PXENV_STATUS_TFTP_CANNOT_OPEN_CONNECTION 0x38
 483 #define PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION 0x39
 484 #define PXENV_STATUS_TFTP_TOO_MANY_PACKAGES 0x3A
 485 #define PXENV_STATUS_TFTP_FILE_NOT_FOUND 0x3B
 486 #define PXENV_STATUS_TFTP_ACCESS_VIOLATION 0x3C
 487 #define PXENV_STATUS_TFTP_NO_MCAST_ADDRESS 0x3D
 488 #define PXENV_STATUS_TFTP_NO_FILESIZE 0x3E
 489 #define PXENV_STATUS_TFTP_INVALID_PACKET_SIZE 0x3F
 490 #define PXENV_STATUS_DHCP_TIMEOUT 0x51
 491 #define PXENV_STATUS_DHCP_NO_IP_ADDRESS 0x52
 492 #define PXENV_STATUS_DHCP_NO_BOOTFILE_NAME 0x53
 493 #define PXENV_STATUS_DHCP_BAD_IP_ADDRESS 0x54
 494 #define PXENV_STATUS_UNDI_INVALID_FUNCTION 0x60
 495 #define PXENV_STATUS_UNDI_MEDIATEST_FAILED 0x61
 496 #define PXENV_STATUS_UNDI_CANNOT_INIT_NIC_FOR_MCAST 0x62
 497 #define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_NIC 0x63
 498 #define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_PHY 0x64
 499 #define PXENV_STATUS_UNDI_CANNOT_READ_CONFIG_DATA 0x65
 500 #define PXENV_STATUS_UNDI_CANNOT_READ_INIT_DATA 0x66
 501 #define PXENV_STATUS_UNDI_BAD_MAC_ADDRESS 0x67
 502 #define PXENV_STATUS_UNDI_BAD_EEPROM_CHECKSUM 0x68
 503 #define PXENV_STATUS_UNDI_ERROR_SETTING_ISR 0x69
 504 #define PXENV_STATUS_UNDI_INVALID_STATE 0x6A
 505 #define PXENV_STATUS_UNDI_TRANSMIT_ERROR 0x6B
 506 #define PXENV_STATUS_UNDI_INVALID_PARAMETER 0x6C
 507 #define PXENV_STATUS_BSTRAP_PROMPT_MENU 0x74
 508 #define PXENV_STATUS_BSTRAP_MCAST_ADDR 0x76
 509 #define PXENV_STATUS_BSTRAP_MISSING_LIST 0x77
 510 #define PXENV_STATUS_BSTRAP_NO_RESPONSE 0x78
 511 #define PXENV_STATUS_BSTRAP_FILE_TOO_BIG 0x79
 512 #define PXENV_STATUS_BINL_CANCELED_BY_KEYSTROKE 0xA0
 513 #define PXENV_STATUS_BINL_NO_PXE_SERVER 0xA1
 514 #define PXENV_STATUS_NOT_AVAILABLE_IN_PMODE 0xA2
 515 #define PXENV_STATUS_NOT_AVAILABLE_IN_RMODE 0xA3
 516 #define PXENV_STATUS_BUSD_DEVICE_NOT_SUPPORTED 0xB0
 517 #define PXENV_STATUS_LOADER_NO_FREE_BASE_MEMORY 0xC0
 518 #define PXENV_STATUS_LOADER_NO_BC_ROMID 0xC1
 519 #define PXENV_STATUS_LOADER_BAD_BC_ROMID 0xC2
 520 #define PXENV_STATUS_LOADER_BAD_BC_RUNTIME_IMAGE 0xC3
 521 #define PXENV_STATUS_LOADER_NO_UNDI_ROMID 0xC4
 522 #define PXENV_STATUS_LOADER_BAD_UNDI_ROMID 0xC5
 523 #define PXENV_STATUS_LOADER_BAD_UNDI_DRIVER_IMAGE 0xC6
 524 #define PXENV_STATUS_LOADER_NO_PXE_STRUCT 0xC8
 525 #define PXENV_STATUS_LOADER_NO_PXENV_STRUCT 0xC9
 526 #define PXENV_STATUS_LOADER_UNDI_START 0xCA
 527 #define PXENV_STATUS_LOADER_BC_START 0xCB
 528
 529 /* SYSLINUX-defined PXE utility functions */
 530 int pxe_get_cached_info(int level, void **buf, size_t *len);
 531
 532 #endif /* _SYSLINUX_PXE_H */