Tools/Source/TianoTools/Include/Protocol/Mtftp4.h

   1 /** @file
   2   EFI Multicast Trivial File Tranfer Protocol Definition
   3
   4   Copyright (c) 2006, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   Module Name:  Mtftp4.h
  14
  15 **/
  16
  17 #ifndef __EFI_MTFTP4_PROTOCOL_H__
  18 #define __EFI_MTFTP4_PROTOCOL_H__
  19
  20 #define EFI_MTFTP4_SERVICE_BINDING_PROTOCOL_GUID \
  21   { \
  22     0x2FE800BE, 0x8F01, 0x4aa6, {0x94, 0x6B, 0xD7, 0x13, 0x88, 0xE1, 0x83, 0x3F } \
  23   }
  24
  25 #define EFI_MTFTP4_PROTOCOL_GUID \
  26   { \
  27     0x3ad9df29, 0x4501, 0x478d, {0xb1, 0xf8, 0x7f, 0x7f, 0xe7, 0x0e, 0x50, 0xf3 } \
  28   }
  29
  30 typedef struct _EFI_MTFTP4_PROTOCOL EFI_MTFTP4_PROTOCOL;
  31 typedef struct _EFI_MTFTP4_TOKEN EFI_MTFTP4_TOKEN;
  32
  33 //
  34 //MTFTP4 packet opcode definition
  35 //
  36 #define EFI_MTFTP4_OPCODE_RRQ                     1
  37 #define EFI_MTFTP4_OPCODE_WRQ                     2
  38 #define EFI_MTFTP4_OPCODE_DATA                    3
  39 #define EFI_MTFTP4_OPCODE_ACK                     4
  40 #define EFI_MTFTP4_OPCODE_ERROR                   5
  41 #define EFI_MTFTP4_OPCODE_OACK                    6
  42 #define EFI_MTFTP4_OPCODE_DIR                     7
  43 #define EFI_MTFTP4_OPCODE_DATA8                   8
  44 #define EFI_MTFTP4_OPCODE_ACK8                    9
  45
  46 //
  47 // MTFTP4 error code definition
  48 //
  49 #define EFI_MTFTP4_ERRORCODE_NOT_DEFINED          0
  50 #define EFI_MTFTP4_ERRORCODE_FILE_NOT_FOUND       1
  51 #define EFI_MTFTP4_ERRORCODE_ACCESS_VIOLATION     2
  52 #define EFI_MTFTP4_ERRORCODE_DISK_FULL            3
  53 #define EFI_MTFTP4_ERRORCODE_ILLEGAL_OPERATION    4
  54 #define EFI_MTFTP4_ERRORCODE_UNKNOWN_TRANSFER_ID  5
  55 #define EFI_MTFTP4_ERRORCODE_FILE_ALREADY_EXISTS  6
  56 #define EFI_MTFTP4_ERRORCODE_NO_SUCH_USER         7
  57 #define EFI_MTFTP4_ERRORCODE_REQUEST_DENIED       8
  58
  59 //
  60 // MTFTP4 pacekt definitions
  61 //
  62 #pragma pack(1)
  63
  64 typedef struct {
  65   UINT16                  OpCode;
  66   UINT8                   Filename[1];
  67 } EFI_MTFTP4_REQ_HEADER;
  68
  69 typedef struct {
  70   UINT16                  OpCode;
  71   UINT8                   Data[1];
  72 } EFI_MTFTP4_OACK_HEADER;
  73
  74 typedef struct {
  75   UINT16                  OpCode;
  76   UINT16                  Block;
  77   UINT8                   Data[1];
  78 } EFI_MTFTP4_DATA_HEADER;
  79
  80 typedef struct {
  81   UINT16                  OpCode;
  82   UINT16                  Block[1];
  83 } EFI_MTFTP4_ACK_HEADER;
  84
  85 typedef struct {
  86   UINT16                  OpCode;
  87   UINT64                  Block;
  88   UINT8                   Data[1];
  89 } EFI_MTFTP4_DATA8_HEADER;
  90
  91 typedef struct {
  92   UINT16                  OpCode;
  93   UINT64                  Block[1];
  94 } EFI_MTFTP4_ACK8_HEADER;
  95
  96 typedef struct {
  97   UINT16                  OpCode;
  98   UINT16                  ErrorCode;
  99   UINT8                   ErrorMessage[1];
 100 } EFI_MTFTP4_ERROR_HEADER;
 101
 102 typedef union {
 103   UINT16                  OpCode;
 104   EFI_MTFTP4_REQ_HEADER   Rrq;
 105   EFI_MTFTP4_REQ_HEADER   Wrq;
 106   EFI_MTFTP4_OACK_HEADER  Oack;
 107   EFI_MTFTP4_DATA_HEADER  Data;
 108   EFI_MTFTP4_ACK_HEADER   Ack;
 109   EFI_MTFTP4_DATA8_HEADER Data8;
 110   EFI_MTFTP4_ACK8_HEADER  Ack8;
 111   EFI_MTFTP4_ERROR_HEADER Error;
 112 } EFI_MTFTP4_PACKET;
 113
 114 #pragma pack()
 115
 116 //
 117 // MTFTP4 option definition
 118 //
 119 typedef struct {
 120   UINT8                   *OptionStr;
 121   UINT8                   *ValueStr;
 122 } EFI_MTFTP4_OPTION;
 123
 124
 125 typedef struct {
 126   BOOLEAN                 UseDefaultSetting;
 127   EFI_IPv4_ADDRESS        StationIp;
 128   EFI_IPv4_ADDRESS        SubnetMask;
 129   UINT16                  LocalPort;
 130   EFI_IPv4_ADDRESS        GatewayIp;
 131   EFI_IPv4_ADDRESS        ServerIp;
 132   UINT16                  InitialServerPort;
 133   UINT16                  TryCount;
 134   UINT16                  TimeoutValue;
 135 } EFI_MTFTP4_CONFIG_DATA;
 136
 137
 138 typedef struct {
 139   EFI_MTFTP4_CONFIG_DATA  ConfigData;
 140   UINT8                   SupportedOptionCount;
 141   UINT8                   **SupportedOptoins;
 142   UINT8                   UnsupportedOptionCount;
 143   UINT8                   **UnsupportedOptoins;
 144 } EFI_MTFTP4_MODE_DATA;
 145
 146
 147 typedef struct {
 148   EFI_IPv4_ADDRESS        GatewayIp;
 149   EFI_IPv4_ADDRESS        ServerIp;
 150   UINT16                  ServerPort;
 151   UINT16                  TryCount;
 152   UINT16                  TimeoutValue;
 153 } EFI_MTFTP4_OVERRIDE_DATA;
 154
 155 //
 156 // Protocol interfaces definition
 157 //
 158
 159 /**
 160   a callback function that is provided by the caller to intercept
 161   the EFI_MTFTP4_OPCODE_DATA or EFI_MTFTP4_OPCODE_DATA8 packets processed in the
 162   EFI_MTFTP4_PROTOCOL.ReadFile() function, and alternatively to intercept
 163   EFI_MTFTP4_OPCODE_OACK or EFI_MTFTP4_OPCODE_ERROR packets during a call to
 164   EFI_MTFTP4_PROTOCOL.ReadFile(), WriteFile() or ReadDirectory().
 165
 166   @param  This        Pointer to the EFI_MTFTP4_PROTOCOL instance.
 167   @param  Token       The token that the caller provided in the
 168                       EFI_MTFTP4_PROTOCOL.ReadFile(), WriteFile()
 169                       or ReadDirectory() function.
 170   @param  PacketLen   Indicates the length of the packet.
 171   @param  Packet      Pointer to an MTFTPv4 packet.
 172
 173   @retval EFI_SUCCESS Operation sucess
 174   @retval Others      Abort transfer process
 175
 176 **/
 177 typedef
 178 EFI_STATUS
 179 (EFIAPI *EFI_MTFTP4_CHECK_PACKET)(
 180   IN EFI_MTFTP4_PROTOCOL  *This,
 181   IN EFI_MTFTP4_TOKEN     *Token,
 182   IN UINT16               PacketLen,
 183   IN EFI_MTFTP4_PACKET    *Paket
 184   )
 185 ;
 186
 187 /**
 188   Timeout callback funtion.
 189
 190   @param  This           Pointer to the EFI_MTFTP4_PROTOCOL instance.
 191   @param  Token          The token that is provided in the
 192                          EFI_MTFTP4_PROTOCOL.ReadFile() or
 193                          EFI_MTFTP4_PROTOCOL.WriteFile() or
 194                          EFI_MTFTP4_PROTOCOL.ReadDirectory() functions
 195                          by the caller.
 196
 197   @retval EFI_SUCCESS   Operation sucess
 198   @retval Others        Aborts download process.
 199
 200 **/
 201 typedef
 202 EFI_STATUS
 203 (EFIAPI *EFI_MTFTP4_TIMEOUT_CALLBACK)(
 204   IN EFI_MTFTP4_PROTOCOL  *This,
 205   IN EFI_MTFTP4_TOKEN     *Token
 206   )
 207 ;
 208
 209 /**
 210   a callback function that the caller provides to feed data to the
 211   EFI_MTFTP4_PROTOCOL.WriteFile() function.
 212
 213   @param  This   Pointer to the EFI_MTFTP4_PROTOCOL instance.
 214   @param  Token  The token provided in the
 215                  EFI_MTFTP4_PROTOCOL.WriteFile() by the caller.
 216   @param  Length Indicates the length of the raw data wanted on input, and the
 217                  length the data available on output.
 218   @param  Buffer Pointer to the buffer where the data is stored.
 219
 220   @retval EFI_SUCCESS Operation sucess
 221   @retval Others      Aborts session.
 222
 223 **/
 224 typedef
 225 EFI_STATUS
 226 (EFIAPI *EFI_MTFTP4_PACKET_NEEDED)(
 227   IN  EFI_MTFTP4_PROTOCOL *This,
 228   IN  EFI_MTFTP4_TOKEN    *Token,
 229   IN  OUT UINT16          *Length,
 230   OUT VOID                **Buffer
 231   )
 232 ;
 233
 234
 235 /**
 236   Submits an asynchronous interrupt transfer to an interrupt endpoint of a USB device.
 237
 238   @param  This     Pointer to the EFI_MTFTP4_PROTOCOL instance.
 239   @param  ModeData Pointer to storage for the EFI MTFTPv4 Protocol driver mode data.
 240
 241   @retval EFI_SUCCESS           The configuration data was successfully returned.
 242   @retval EFI_OUT_OF_RESOURCES  The required mode data could not be allocated.
 243   @retval EFI_INVALID_PARAMETER This is NULL or ModeData is NULL.
 244
 245 **/
 246 typedef
 247 EFI_STATUS
 248 (EFIAPI *EFI_MTFTP4_GET_MODE_DATA)(
 249   IN  EFI_MTFTP4_PROTOCOL     *This,
 250   OUT EFI_MTFTP4_MODE_DATA    *ModeData
 251   )
 252 ;
 253
 254
 255 /**
 256   Initializes, changes, or resets the default operational setting for this
 257   EFI MTFTPv4 Protocol driver instance.
 258
 259   @param  This            Pointer to the EFI_MTFTP4_PROTOCOL instance.
 260   @param  MtftpConfigData Pointer to the configuration data structure.
 261
 262   @retval EFI_SUCCESS           The EFI MTFTPv4 Protocol driver was configured successfully.
 263   @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
 264   @retval EFI_ACCESS_DENIED     The EFI configuration could not be changed at this time because
 265                                 there is one MTFTP background operation in progress.
 266   @retval EFI_NO_MAPPING        When using a default address, configuration (DHCP, BOOTP,
 267                                 RARP, etc.) has not finished yet.
 268   @retval EFI_UNSUPPORTED       A configuration protocol (DHCP, BOOTP, RARP, etc.) could not
 269                                 be located when clients choose to use the default address
 270                                 settings.
 271   @retval EFI_OUT_OF_RESOURCES  The EFI MTFTPv4 Protocol driver instance data could not be
 272                                 allocated.
 273   @retval EFI_DEVICE_ERROR      An unexpected system or network error occurred. The EFI
 274                                  MTFTPv4 Protocol driver instance is not configured.
 275
 276 **/
 277 typedef
 278 EFI_STATUS
 279 (EFIAPI *EFI_MTFTP4_CONFIGURE)(
 280   IN EFI_MTFTP4_PROTOCOL       *This,
 281   IN EFI_MTFTP4_CONFIG_DATA    *MtftpConfigData OPTIONAL
 282   )
 283 ;
 284
 285
 286 /**
 287   Gets information about a file from an MTFTPv4 server.
 288
 289   @param  This         Pointer to the EFI_MTFTP4_PROTOCOL instance.
 290   @param  OverrideData Data that is used to override the existing parameters. If NULL,
 291                        the default parameters that were set in the
 292                        EFI_MTFTP4_PROTOCOL.Configure() function are used.
 293   @param  Filename     Pointer to ASCIIZ file name string.
 294   @param  ModeStr      Pointer to ASCIIZ mode string. If NULL, ¡°octet¡± will be used.
 295   @param  OptionCount  Number of option/value string pairs in OptionList.
 296   @param  OptionList   Pointer to array of option/value string pairs. Ignored if
 297                        OptionCount is zero.
 298   @param  PacketLength The number of bytes in the returned packet.
 299   @param  Packet       The pointer to the received packet. This buffer must be freed by
 300                        the caller.
 301
 302   @retval EFI_SUCCESS           An MTFTPv4 OACK packet was received and is in the Buffer.
 303   @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
 304   @retval EFI_UNSUPPORTED       One or more options in the OptionList are in the
 305                                 unsupported list of structure EFI_MTFTP4_MODE_DATA.
 306
 307   @retval EFI_NOT_STARTED       The EFI MTFTPv4 Protocol driver has not been started.
 308   @retval EFI_NO_MAPPING        When using a default address, configuration (DHCP, BOOTP,
 309                                 RARP, etc.) has not finished yet.
 310   @retval EFI_ACCESS_DENIED     The previous operation has not completed yet.
 311   @retval EFI_OUT_OF_RESOURCES  Required system resources could not be allocated.
 312   @retval EFI_TFTP_ERROR        An MTFTPv4 ERROR packet was received and is in the buffer.
 313   @retval EFI_ICMP_ERROR        An ICMP ERROR packet was received and is in the Buffer.
 314   @retval EFI_PROTOCOL_ERROR    An unexpected MTFTPv4 packet was received and is in the buffer.
 315   @retval EFI_TIMEOUT           No responses were received from the MTFTPv4 server.
 316   @retval EFI_DEVICE_ERROR      An unexpected network error or system error occurred.
 317
 318 **/
 319 typedef
 320 EFI_STATUS
 321 (EFIAPI *EFI_MTFTP4_GET_INFO)(
 322   IN  EFI_MTFTP4_PROTOCOL      *This,
 323   IN  EFI_MTFTP4_OVERRIDE_DATA *OverrideData   OPTIONAL,
 324   IN  UINT8                    *Filename,
 325   IN  UINT8                    *ModeStr        OPTIONAL,
 326   IN  UINT8                    OptionCount,
 327   IN  EFI_MTFTP4_OPTION        *OptionList,
 328   OUT UINT32                   *PacketLength,
 329   OUT EFI_MTFTP4_PACKET        **Packet        OPTIONAL
 330   )
 331 ;
 332
 333 /**
 334   Parses the options in an MTFTPv4 OACK packet.
 335
 336   @param  This         Pointer to the EFI_MTFTP4_PROTOCOL instance.
 337   @param  PacketLen    Length of the OACK packet to be parsed.
 338   @param  Packet       Pointer to the OACK packet to be parsed.
 339   @param  OptionCount  Pointer to the number of options in following OptionList.
 340   @param  OptionList   Pointer to EFI_MTFTP4_OPTION storage. Call the EFI Boot
 341                        Service FreePool() to release each option if they are not
 342                        needed any more.
 343
 344   @retval EFI_SUCCESS           The OACK packet was valid and the OptionCount and
 345                                 OptionList parameters have been updated.
 346   @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
 347                                 - PacketLen is 0.
 348                                 - Packet is NULL or Packet is not a valid MTFTPv4 packet.
 349                                 - OptionCount is NULL.
 350   @retval EFI_NOT_FOUND         No options were found in the OACK packet.
 351   @retval EFI_OUT_OF_RESOURCES  Storage for the OptionList array cannot be allocated.
 352   @retval EFI_PROTOCOL_ERROR    One or more of the option fields is invalid.
 353
 354 **/
 355 typedef
 356 EFI_STATUS
 357 (EFIAPI *EFI_MTFTP4_PARSE_OPTIONS)(
 358   IN  EFI_MTFTP4_PROTOCOL      *This,
 359   IN  UINT32                   PacketLen,
 360   IN  EFI_MTFTP4_PACKET        *Packet,
 361   OUT UINT32                   *OptionCount,
 362   OUT EFI_MTFTP4_OPTION        **OptionList OPTIONAL
 363   )
 364 ;
 365
 366
 367 /**
 368   Downloads a file from an MTFTPv4 server.
 369
 370   @param  This  Pointer to the EFI_MTFTP4_PROTOCOL instance.
 371   @param  Token Pointer to the token structure to provide the parameters that are
 372                 used in this operation.
 373
 374   @retval EFI_SUCCESS          The data file has been transferred successfully.
 375   @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
 376   @retval EFI_BUFFER_TOO_SMALL BufferSize is not large enough to hold the downloaded data
 377                                in downloading process.
 378   @retval EFI_ABORTED          Current operation is aborted by user.
 379   @retval EFI_ICMP_ERROR       An ICMP ERROR packet was received.
 380   @retval EFI_TIMEOUT          No responses were received from the MTFTPv4 server.
 381   @retval EFI_TFTP_ERROR       An MTFTPv4 ERROR packet was received.
 382   @retval EFI_DEVICE_ERROR     An unexpected network error or system error occurred.
 383
 384 **/
 385 typedef
 386 EFI_STATUS
 387 (EFIAPI *EFI_MTFTP4_READ_FILE)(
 388   IN EFI_MTFTP4_PROTOCOL       *This,
 389   IN EFI_MTFTP4_TOKEN          *Token
 390   )
 391 ;
 392
 393
 394
 395 /**
 396   Sends a file to an MTFTPv4 server.
 397
 398   @param  This Pointer to the EFI_MTFTP4_PROTOCOL instance.
 399   @param  Token Pointer to the token structure to provide the parameters that are
 400   used in this operation.
 401
 402   @retval EFI_SUCCESS           The upload session has started.
 403   @retval EFI_UNSUPPORTED       The operation is not supported by this implementation.
 404   @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
 405   @retval EFI_UNSUPPORTED       One or more options in the Token.OptionList are in
 406                                 the unsupported list of structure EFI_MTFTP4_MODE_DATA.
 407   @retval EFI_NOT_STARTED       The EFI MTFTPv4 Protocol driver has not been started.
 408   @retval EFI_NO_MAPPING        When using a default address, configuration (DHCP, BOOTP,
 409                                 RARP, etc.) is not finished yet.
 410   @retval EFI_ALREADY_STARTED   This Token is already being used in another MTFTPv4 session.
 411   @retval EFI_OUT_OF_RESOURCES  Required system resources could not be allocated.
 412   @retval EFI_ACCESS_DENIED     The previous operation has not completed yet.
 413   @retval EFI_DEVICE_ERROR      An unexpected network error or system error occurred.
 414
 415 **/
 416 typedef
 417 EFI_STATUS
 418 (EFIAPI *EFI_MTFTP4_WRITE_FILE)(
 419   IN EFI_MTFTP4_PROTOCOL       *This,
 420   IN EFI_MTFTP4_TOKEN          *Token
 421   )
 422 ;
 423
 424
 425 /**
 426   Downloads a data file ¡°directory¡± from an MTFTPv4 server. May be unsupported in some EFI
 427   implementations.
 428
 429   @param  This  Pointer to the EFI_MTFTP4_PROTOCOL instance.
 430   @param  Token Pointer to the token structure to provide the parameters that are
 431                 used in this operation.
 432
 433   @retval EFI_SUCCESS           The MTFTPv4 related file "directory" has been downloaded.
 434   @retval EFI_UNSUPPORTED       The operation is not supported by this implementation.
 435   @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
 436   @retval EFI_UNSUPPORTED       One or more options in the Token.OptionList are in
 437                                 the unsupported list of structure EFI_MTFTP4_MODE_DATA.
 438   @retval EFI_NOT_STARTED       The EFI MTFTPv4 Protocol driver has not been started.
 439   @retval EFI_NO_MAPPING        When using a default address, configuration (DHCP, BOOTP,
 440                                 RARP, etc.) is not finished yet.
 441   @retval EFI_ALREADY_STARTED   This Token is already being used in another MTFTPv4 session.
 442   @retval EFI_OUT_OF_RESOURCES  Required system resources could not be allocated.
 443   @retval EFI_ACCESS_DENIED     The previous operation has not completed yet.
 444   @retval EFI_DEVICE_ERROR      An unexpected network error or system error occurred.
 445
 446 **/
 447 typedef
 448 EFI_STATUS
 449 (EFIAPI *EFI_MTFTP4_READ_DIRECTORY)(
 450   IN EFI_MTFTP4_PROTOCOL       *This,
 451   IN EFI_MTFTP4_TOKEN          *Token
 452   )
 453 ;
 454
 455 /**
 456   Polls for incoming data packets and processes outgoing data packets.
 457
 458   @param  This Pointer to the EFI_MTFTP4_PROTOCOL instance.
 459
 460   @retval  EFI_SUCCESS           Incoming or outgoing data was processed.
 461   @retval  EFI_NOT_STARTED       This EFI MTFTPv4 Protocol instance has not been started.
 462   @retval  EFI_NO_MAPPING        When using a default address, configuration (DHCP, BOOTP,
 463                                  RARP, etc.) is not finished yet.
 464   @retval  EFI_INVALID_PARAMETER This is NULL.
 465   @retval  EFI_DEVICE_ERROR      An unexpected system or network error occurred.
 466   @retval  EFI_TIMEOUT           Data was dropped out of the transmit and/or receive queue.
 467                                  Consider increasing the polling rate.
 468
 469 **/
 470 typedef
 471 EFI_STATUS
 472 (EFIAPI *EFI_MTFTP4_POLL) (
 473   IN EFI_MTFTP4_PROTOCOL       *This
 474   )
 475 ;
 476
 477
 478 struct _EFI_MTFTP4_PROTOCOL {
 479   EFI_MTFTP4_GET_MODE_DATA     GetModeData;
 480   EFI_MTFTP4_CONFIGURE         Configure;
 481   EFI_MTFTP4_GET_INFO          GetInfo;
 482   EFI_MTFTP4_PARSE_OPTIONS     ParseOptions;
 483   EFI_MTFTP4_READ_FILE         ReadFile;
 484   EFI_MTFTP4_WRITE_FILE        WriteFile;
 485   EFI_MTFTP4_READ_DIRECTORY    ReadDirectory;
 486   EFI_MTFTP4_POLL              Poll;
 487 };
 488
 489 struct _EFI_MTFTP4_TOKEN {
 490   OUT EFI_STATUS                  Status;
 491   IN  EFI_EVENT                   Event;
 492   IN  EFI_MTFTP4_OVERRIDE_DATA    *OverrideData;
 493   IN  UINT8                       *Filename;
 494   IN  UINT8                       *ModeStr;
 495   IN  UINT32                      OptionCount;
 496   IN  EFI_MTFTP4_OPTION           *OptionList;
 497   IN  OUT UINT64                  BufferSize;
 498   IN  OUT VOID                    *Buffer;
 499   IN  EFI_MTFTP4_CHECK_PACKET     CheckPacket;
 500   IN  EFI_MTFTP4_TIMEOUT_CALLBACK TimeoutCallback;
 501   IN  EFI_MTFTP4_PACKET_NEEDED    PacketNeeded;
 502 };
 503
 504 extern EFI_GUID gEfiMtftp4ServiceBindingProtocolGuid;
 505 extern EFI_GUID gEfiMtftp4ProtocolGuid;
 506
 507 #endif
 508