1 /** @file 2 EFI TCPv4(Transmission Control Protocol version 4) Protocol Definition 3 The EFI TCPv4 Service Binding Protocol is used to locate EFI TCPv4 Protocol drivers to create 4 and destroy child of the driver to communicate with other host using TCP protocol. 5 The EFI TCPv4 Protocol provides services to send and receive data stream. 6 7 Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> 8 This program and the accompanying materials are licensed and made available under 9 the terms and conditions of the BSD License that accompanies this distribution. 10 The full text of the license may be found at 11 http://opensource.org/licenses/bsd-license.php. 12 13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 15 16 @par Revision Reference: 17 This Protocol is introduced in UEFI Specification 2.0. 18 19 **/ 20 21 #ifndef __EFI_TCP4_PROTOCOL_H__ 22 #define __EFI_TCP4_PROTOCOL_H__ 23 24 #include <Protocol/Ip4.h> 25 26 #define EFI_TCP4_SERVICE_BINDING_PROTOCOL_GUID \ 27 { \ 28 0x00720665, 0x67EB, 0x4a99, {0xBA, 0xF7, 0xD3, 0xC3, 0x3A, 0x1C, 0x7C, 0xC9 } \ 29 } 30 31 #define EFI_TCP4_PROTOCOL_GUID \ 32 { \ 33 0x65530BC7, 0xA359, 0x410f, {0xB0, 0x10, 0x5A, 0xAD, 0xC7, 0xEC, 0x2B, 0x62 } \ 34 } 35 36 typedef struct _EFI_TCP4_PROTOCOL EFI_TCP4_PROTOCOL; 37 38 /// 39 /// EFI_TCP4_SERVICE_POINT is deprecated in the UEFI 2.4B and should not be used any more. 40 /// The definition in here is only present to provide backwards compatability. 41 /// 42 typedef struct { 43 EFI_HANDLE InstanceHandle; 44 EFI_IPv4_ADDRESS LocalAddress; 45 UINT16 LocalPort; 46 EFI_IPv4_ADDRESS RemoteAddress; 47 UINT16 RemotePort; 48 } EFI_TCP4_SERVICE_POINT; 49 50 /// 51 /// EFI_TCP4_VARIABLE_DATA is deprecated in the UEFI 2.4B and should not be used any more. 52 /// The definition in here is only present to provide backwards compatability. 53 /// 54 typedef struct { 55 EFI_HANDLE DriverHandle; 56 UINT32 ServiceCount; 57 EFI_TCP4_SERVICE_POINT Services[1]; 58 } EFI_TCP4_VARIABLE_DATA; 59 60 typedef struct { 61 BOOLEAN UseDefaultAddress; 62 EFI_IPv4_ADDRESS StationAddress; 63 EFI_IPv4_ADDRESS SubnetMask; 64 UINT16 StationPort; 65 EFI_IPv4_ADDRESS RemoteAddress; 66 UINT16 RemotePort; 67 BOOLEAN ActiveFlag; 68 } EFI_TCP4_ACCESS_POINT; 69 70 typedef struct { 71 UINT32 ReceiveBufferSize; 72 UINT32 SendBufferSize; 73 UINT32 MaxSynBackLog; 74 UINT32 ConnectionTimeout; 75 UINT32 DataRetries; 76 UINT32 FinTimeout; 77 UINT32 TimeWaitTimeout; 78 UINT32 KeepAliveProbes; 79 UINT32 KeepAliveTime; 80 UINT32 KeepAliveInterval; 81 BOOLEAN EnableNagle; 82 BOOLEAN EnableTimeStamp; 83 BOOLEAN EnableWindowScaling; 84 BOOLEAN EnableSelectiveAck; 85 BOOLEAN EnablePathMtuDiscovery; 86 } EFI_TCP4_OPTION; 87 88 typedef struct { 89 // 90 // I/O parameters 91 // 92 UINT8 TypeOfService; 93 UINT8 TimeToLive; 94 95 // 96 // Access Point 97 // 98 EFI_TCP4_ACCESS_POINT AccessPoint; 99 100 // 101 // TCP Control Options 102 // 103 EFI_TCP4_OPTION *ControlOption; 104 } EFI_TCP4_CONFIG_DATA; 105 106 /// 107 /// TCP4 connnection state 108 /// 109 typedef enum { 110 Tcp4StateClosed = 0, 111 Tcp4StateListen = 1, 112 Tcp4StateSynSent = 2, 113 Tcp4StateSynReceived = 3, 114 Tcp4StateEstablished = 4, 115 Tcp4StateFinWait1 = 5, 116 Tcp4StateFinWait2 = 6, 117 Tcp4StateClosing = 7, 118 Tcp4StateTimeWait = 8, 119 Tcp4StateCloseWait = 9, 120 Tcp4StateLastAck = 10 121 } EFI_TCP4_CONNECTION_STATE; 122 123 typedef struct { 124 EFI_EVENT Event; 125 EFI_STATUS Status; 126 } EFI_TCP4_COMPLETION_TOKEN; 127 128 typedef struct { 129 /// 130 /// The Status in the CompletionToken will be set to one of 131 /// the following values if the active open succeeds or an unexpected 132 /// error happens: 133 /// EFI_SUCCESS: The active open succeeds and the instance's 134 /// state is Tcp4StateEstablished. 135 /// EFI_CONNECTION_RESET: The connect fails because the connection is reset 136 /// either by instance itself or the communication peer. 137 /// EFI_CONNECTION_REFUSED: The connect fails because this connection is initiated with 138 /// an active open and the connection is refused. 139 /// EFI_ABORTED: The active open is aborted. 140 /// EFI_TIMEOUT: The connection establishment timer expires and 141 /// no more specific information is available. 142 /// EFI_NETWORK_UNREACHABLE: The active open fails because 143 /// an ICMP network unreachable error is received. 144 /// EFI_HOST_UNREACHABLE: The active open fails because an 145 /// ICMP host unreachable error is received. 146 /// EFI_PROTOCOL_UNREACHABLE: The active open fails 147 /// because an ICMP protocol unreachable error is received. 148 /// EFI_PORT_UNREACHABLE: The connection establishment 149 /// timer times out and an ICMP port unreachable error is received. 150 /// EFI_ICMP_ERROR: The connection establishment timer timeout and some other ICMP 151 /// error is received. 152 /// EFI_DEVICE_ERROR: An unexpected system or network error occurred. 153 /// EFI_NO_MEDIA: There was a media error. 154 /// 155 EFI_TCP4_COMPLETION_TOKEN CompletionToken; 156 } EFI_TCP4_CONNECTION_TOKEN; 157 158 typedef struct { 159 EFI_TCP4_COMPLETION_TOKEN CompletionToken; 160 EFI_HANDLE NewChildHandle; 161 } EFI_TCP4_LISTEN_TOKEN; 162 163 typedef struct { 164 UINT32 FragmentLength; 165 VOID *FragmentBuffer; 166 } EFI_TCP4_FRAGMENT_DATA; 167 168 typedef struct { 169 BOOLEAN UrgentFlag; 170 UINT32 DataLength; 171 UINT32 FragmentCount; 172 EFI_TCP4_FRAGMENT_DATA FragmentTable[1]; 173 } EFI_TCP4_RECEIVE_DATA; 174 175 typedef struct { 176 BOOLEAN Push; 177 BOOLEAN Urgent; 178 UINT32 DataLength; 179 UINT32 FragmentCount; 180 EFI_TCP4_FRAGMENT_DATA FragmentTable[1]; 181 } EFI_TCP4_TRANSMIT_DATA; 182 183 typedef struct { 184 /// 185 /// When transmission finishes or meets any unexpected error it will 186 /// be set to one of the following values: 187 /// EFI_SUCCESS: The receiving or transmission operation 188 /// completes successfully. 189 /// EFI_CONNECTION_FIN: The receiving operation fails because the communication peer 190 /// has closed the connection and there is no more data in the 191 /// receive buffer of the instance. 192 /// EFI_CONNECTION_RESET: The receiving or transmission operation fails 193 /// because this connection is reset either by instance 194 /// itself or the communication peer. 195 /// EFI_ABORTED: The receiving or transmission is aborted. 196 /// EFI_TIMEOUT: The transmission timer expires and no more 197 /// specific information is available. 198 /// EFI_NETWORK_UNREACHABLE: The transmission fails 199 /// because an ICMP network unreachable error is received. 200 /// EFI_HOST_UNREACHABLE: The transmission fails because an 201 /// ICMP host unreachable error is received. 202 /// EFI_PROTOCOL_UNREACHABLE: The transmission fails 203 /// because an ICMP protocol unreachable error is received. 204 /// EFI_PORT_UNREACHABLE: The transmission fails and an 205 /// ICMP port unreachable error is received. 206 /// EFI_ICMP_ERROR: The transmission fails and some other 207 /// ICMP error is received. 208 /// EFI_DEVICE_ERROR: An unexpected system or network error occurs. 209 /// EFI_NO_MEDIA: There was a media error. 210 /// 211 EFI_TCP4_COMPLETION_TOKEN CompletionToken; 212 union { 213 /// 214 /// When this token is used for receiving, RxData is a pointer to EFI_TCP4_RECEIVE_DATA. 215 /// 216 EFI_TCP4_RECEIVE_DATA *RxData; 217 /// 218 /// When this token is used for transmitting, TxData is a pointer to EFI_TCP4_TRANSMIT_DATA. 219 /// 220 EFI_TCP4_TRANSMIT_DATA *TxData; 221 } Packet; 222 } EFI_TCP4_IO_TOKEN; 223 224 typedef struct { 225 EFI_TCP4_COMPLETION_TOKEN CompletionToken; 226 BOOLEAN AbortOnClose; 227 } EFI_TCP4_CLOSE_TOKEN; 228 229 // 230 // Interface definition for TCP4 protocol 231 // 232 233 /** 234 Get the current operational status. 235 236 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 237 @param Tcp4State The pointer to the buffer to receive the current TCP state. 238 @param Tcp4ConfigData The pointer to the buffer to receive the current TCP configuration. 239 @param Ip4ModeData The pointer to the buffer to receive the current IPv4 configuration 240 data used by the TCPv4 instance. 241 @param MnpConfigData The pointer to the buffer to receive the current MNP configuration 242 data used indirectly by the TCPv4 instance. 243 @param SnpModeData The pointer to the buffer to receive the current SNP configuration 244 data used indirectly by the TCPv4 instance. 245 246 @retval EFI_SUCCESS The mode data was read. 247 @retval EFI_INVALID_PARAMETER This is NULL. 248 @retval EFI_NOT_STARTED No configuration data is available because this instance hasn't 249 been started. 250 251 **/ 252 typedef 253 EFI_STATUS 254 (EFIAPI *EFI_TCP4_GET_MODE_DATA)( 255 IN EFI_TCP4_PROTOCOL *This, 256 OUT EFI_TCP4_CONNECTION_STATE *Tcp4State OPTIONAL, 257 OUT EFI_TCP4_CONFIG_DATA *Tcp4ConfigData OPTIONAL, 258 OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL, 259 OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL, 260 OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL 261 ); 262 263 /** 264 Initialize or brutally reset the operational parameters for this EFI TCPv4 instance. 265 266 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 267 @param Tcp4ConfigData The pointer to the configure data to configure the instance. 268 269 @retval EFI_SUCCESS The operational settings are set, changed, or reset 270 successfully. 271 @retval EFI_INVALID_PARAMETER Some parameter is invalid. 272 @retval EFI_NO_MAPPING When using a default address, configuration (through 273 DHCP, BOOTP, RARP, etc.) is not finished yet. 274 @retval EFI_ACCESS_DENIED Configuring TCP instance when it is configured without 275 calling Configure() with NULL to reset it. 276 @retval EFI_DEVICE_ERROR An unexpected network or system error occurred. 277 @retval EFI_UNSUPPORTED One or more of the control options are not supported in 278 the implementation. 279 @retval EFI_OUT_OF_RESOURCES Could not allocate enough system resources when 280 executing Configure(). 281 282 **/ 283 typedef 284 EFI_STATUS 285 (EFIAPI *EFI_TCP4_CONFIGURE)( 286 IN EFI_TCP4_PROTOCOL *This, 287 IN EFI_TCP4_CONFIG_DATA *TcpConfigData OPTIONAL 288 ); 289 290 291 /** 292 Add or delete a route entry to the route table 293 294 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 295 @param DeleteRoute Set it to TRUE to delete this route from the routing table. Set it to 296 FALSE to add this route to the routing table. 297 DestinationAddress and SubnetMask are used as the 298 keywords to search route entry. 299 @param SubnetAddress The destination network. 300 @param SubnetMask The subnet mask of the destination network. 301 @param GatewayAddress The gateway address for this route. It must be on the same 302 subnet with the station address unless a direct route is specified. 303 304 @retval EFI_SUCCESS The operation completed successfully. 305 @retval EFI_NOT_STARTED The EFI TCPv4 Protocol instance has not been configured. 306 @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, 307 RARP, etc.) is not finished yet. 308 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: 309 - This is NULL. 310 - SubnetAddress is NULL. 311 - SubnetMask is NULL. 312 - GatewayAddress is NULL. 313 - *SubnetAddress is not NULL a valid subnet address. 314 - *SubnetMask is not a valid subnet mask. 315 - *GatewayAddress is not a valid unicast IP address or it 316 is not in the same subnet. 317 @retval EFI_OUT_OF_RESOURCES Could not allocate enough resources to add the entry to the 318 routing table. 319 @retval EFI_NOT_FOUND This route is not in the routing table. 320 @retval EFI_ACCESS_DENIED The route is already defined in the routing table. 321 @retval EFI_UNSUPPORTED The TCP driver does not support this operation. 322 323 **/ 324 typedef 325 EFI_STATUS 326 (EFIAPI *EFI_TCP4_ROUTES)( 327 IN EFI_TCP4_PROTOCOL *This, 328 IN BOOLEAN DeleteRoute, 329 IN EFI_IPv4_ADDRESS *SubnetAddress, 330 IN EFI_IPv4_ADDRESS *SubnetMask, 331 IN EFI_IPv4_ADDRESS *GatewayAddress 332 ); 333 334 /** 335 Initiate a nonblocking TCP connection request for an active TCP instance. 336 337 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 338 @param ConnectionToken The pointer to the connection token to return when the TCP three 339 way handshake finishes. 340 341 @retval EFI_SUCCESS The connection request is successfully initiated and the state 342 of this TCPv4 instance has been changed to Tcp4StateSynSent. 343 @retval EFI_NOT_STARTED This EFI TCPv4 Protocol instance has not been configured. 344 @retval EFI_ACCESS_DENIED One or more of the following conditions are TRUE: 345 - This instance is not configured as an active one. 346 - This instance is not in Tcp4StateClosed state. 347 @retval EFI_INVALID_PARAMETER One or more of the following are TRUE: 348 - This is NULL. 349 - ConnectionToken is NULL. 350 - ConnectionToken->CompletionToken.Event is NULL. 351 @retval EFI_OUT_OF_RESOURCES The driver can't allocate enough resource to initiate the activ eopen. 352 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. 353 354 **/ 355 typedef 356 EFI_STATUS 357 (EFIAPI *EFI_TCP4_CONNECT)( 358 IN EFI_TCP4_PROTOCOL *This, 359 IN EFI_TCP4_CONNECTION_TOKEN *ConnectionToken 360 ); 361 362 363 /** 364 Listen on the passive instance to accept an incoming connection request. This is a nonblocking operation. 365 366 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 367 @param ListenToken The pointer to the listen token to return when operation finishes. 368 369 @retval EFI_SUCCESS The listen token has been queued successfully. 370 @retval EFI_NOT_STARTED This EFI TCPv4 Protocol instance has not been configured. 371 @retval EFI_ACCESS_DENIED One or more of the following are TRUE: 372 - This instance is not a passive instance. 373 - This instance is not in Tcp4StateListen state. 374 - The same listen token has already existed in the listen 375 token queue of this TCP instance. 376 @retval EFI_INVALID_PARAMETER One or more of the following are TRUE: 377 - This is NULL. 378 - ListenToken is NULL. 379 - ListentToken->CompletionToken.Event is NULL. 380 @retval EFI_OUT_OF_RESOURCES Could not allocate enough resource to finish the operation. 381 @retval EFI_DEVICE_ERROR Any unexpected and not belonged to above category error. 382 383 **/ 384 typedef 385 EFI_STATUS 386 (EFIAPI *EFI_TCP4_ACCEPT)( 387 IN EFI_TCP4_PROTOCOL *This, 388 IN EFI_TCP4_LISTEN_TOKEN *ListenToken 389 ); 390 391 /** 392 Queues outgoing data into the transmit queue. 393 394 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 395 @param Token The pointer to the completion token to queue to the transmit queue. 396 397 @retval EFI_SUCCESS The data has been queued for transmission. 398 @retval EFI_NOT_STARTED This EFI TCPv4 Protocol instance has not been configured. 399 @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, 400 RARP, etc.) is not finished yet. 401 @retval EFI_INVALID_PARAMETER One or more of the following are TRUE: 402 - This is NULL. 403 - Token is NULL. 404 - Token->CompletionToken.Event is NULL. 405 - Token->Packet.TxData is NULL L. 406 - Token->Packet.FragmentCount is zero. 407 - Token->Packet.DataLength is not equal to the sum of fragment lengths. 408 @retval EFI_ACCESS_DENIED One or more of the following conditions is TRUE: 409 - A transmit completion token with the same Token->CompletionToken.Event 410 was already in the transmission queue. 411 - The current instance is in Tcp4StateClosed state. 412 - The current instance is a passive one and it is in 413 Tcp4StateListen state. 414 - User has called Close() to disconnect this connection. 415 @retval EFI_NOT_READY The completion token could not be queued because the 416 transmit queue is full. 417 @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data because of resource 418 shortage. 419 @retval EFI_NETWORK_UNREACHABLE There is no route to the destination network or address. 420 421 **/ 422 typedef 423 EFI_STATUS 424 (EFIAPI *EFI_TCP4_TRANSMIT)( 425 IN EFI_TCP4_PROTOCOL *This, 426 IN EFI_TCP4_IO_TOKEN *Token 427 ); 428 429 430 /** 431 Places an asynchronous receive request into the receiving queue. 432 433 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 434 @param Token The pointer to a token that is associated with the receive data 435 descriptor. 436 437 @retval EFI_SUCCESS The receive completion token was cached. 438 @retval EFI_NOT_STARTED This EFI TCPv4 Protocol instance has not been configured. 439 @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, RARP, 440 etc.) is not finished yet. 441 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: 442 - This is NULL. 443 - Token is NULL. 444 - Token->CompletionToken.Event is NULL. 445 - Token->Packet.RxData is NULL. 446 - Token->Packet.RxData->DataLength is 0. 447 - The Token->Packet.RxData->DataLength is not 448 the sum of all FragmentBuffer length in FragmentTable. 449 @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of 450 system resources (usually memory). 451 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. 452 @retval EFI_ACCESS_DENIED One or more of the following conditions is TRUE: 453 - A receive completion token with the same Token- 454 >CompletionToken.Event was already in the receive 455 queue. 456 - The current instance is in Tcp4StateClosed state. 457 - The current instance is a passive one and it is in 458 Tcp4StateListen state. 459 - User has called Close() to disconnect this connection. 460 @retval EFI_CONNECTION_FIN The communication peer has closed the connection and there is 461 no any buffered data in the receive buffer of this instance. 462 @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full. 463 464 **/ 465 typedef 466 EFI_STATUS 467 (EFIAPI *EFI_TCP4_RECEIVE)( 468 IN EFI_TCP4_PROTOCOL *This, 469 IN EFI_TCP4_IO_TOKEN *Token 470 ); 471 472 /** 473 Disconnecting a TCP connection gracefully or reset a TCP connection. This function is a 474 nonblocking operation. 475 476 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 477 @param CloseToken The pointer to the close token to return when operation finishes. 478 479 @retval EFI_SUCCESS The Close() is called successfully. 480 @retval EFI_NOT_STARTED This EFI TCPv4 Protocol instance has not been configured. 481 @retval EFI_ACCESS_DENIED One or more of the following are TRUE: 482 - Configure() has been called with 483 TcpConfigData set to NULL and this function has 484 not returned. 485 - Previous Close() call on this instance has not 486 finished. 487 @retval EFI_INVALID_PARAMETER One or more of the following are TRUE: 488 - This is NULL. 489 - CloseToken is NULL. 490 - CloseToken->CompletionToken.Event is NULL. 491 @retval EFI_OUT_OF_RESOURCES Could not allocate enough resource to finish the operation. 492 @retval EFI_DEVICE_ERROR Any unexpected and not belonged to above category error. 493 494 **/ 495 typedef 496 EFI_STATUS 497 (EFIAPI *EFI_TCP4_CLOSE)( 498 IN EFI_TCP4_PROTOCOL *This, 499 IN EFI_TCP4_CLOSE_TOKEN *CloseToken 500 ); 501 502 /** 503 Abort an asynchronous connection, listen, transmission or receive request. 504 505 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 506 @param Token The pointer to a token that has been issued by 507 EFI_TCP4_PROTOCOL.Connect(), 508 EFI_TCP4_PROTOCOL.Accept(), 509 EFI_TCP4_PROTOCOL.Transmit() or 510 EFI_TCP4_PROTOCOL.Receive(). If NULL, all pending 511 tokens issued by above four functions will be aborted. Type 512 EFI_TCP4_COMPLETION_TOKEN is defined in 513 EFI_TCP4_PROTOCOL.Connect(). 514 515 @retval EFI_SUCCESS The asynchronous I/O request is aborted and Token->Event 516 is signaled. 517 @retval EFI_INVALID_PARAMETER This is NULL. 518 @retval EFI_NOT_STARTED This instance hasn't been configured. 519 @retval EFI_NO_MAPPING When using the default address, configuration 520 (DHCP, BOOTP,RARP, etc.) hasn't finished yet. 521 @retval EFI_NOT_FOUND The asynchronous I/O request isn't found in the 522 transmission or receive queue. It has either 523 completed or wasn't issued by Transmit() and Receive(). 524 @retval EFI_UNSUPPORTED The implementation does not support this function. 525 526 **/ 527 typedef 528 EFI_STATUS 529 (EFIAPI *EFI_TCP4_CANCEL)( 530 IN EFI_TCP4_PROTOCOL *This, 531 IN EFI_TCP4_COMPLETION_TOKEN *Token OPTIONAL 532 ); 533 534 535 /** 536 Poll to receive incoming data and transmit outgoing segments. 537 538 @param This The pointer to the EFI_TCP4_PROTOCOL instance. 539 540 @retval EFI_SUCCESS Incoming or outgoing data was processed. 541 @retval EFI_INVALID_PARAMETER This is NULL. 542 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. 543 @retval EFI_NOT_READY No incoming or outgoing data is processed. 544 @retval EFI_TIMEOUT Data was dropped out of the transmission or receive queue. 545 Consider increasing the polling rate. 546 547 **/ 548 typedef 549 EFI_STATUS 550 (EFIAPI *EFI_TCP4_POLL)( 551 IN EFI_TCP4_PROTOCOL *This 552 ); 553 554 /// 555 /// The EFI_TCP4_PROTOCOL defines the EFI TCPv4 Protocol child to be used by 556 /// any network drivers or applications to send or receive data stream. 557 /// It can either listen on a specified port as a service or actively connected 558 /// to remote peer as a client. Each instance has its own independent settings, 559 /// such as the routing table. 560 /// 561 struct _EFI_TCP4_PROTOCOL { 562 EFI_TCP4_GET_MODE_DATA GetModeData; 563 EFI_TCP4_CONFIGURE Configure; 564 EFI_TCP4_ROUTES Routes; 565 EFI_TCP4_CONNECT Connect; 566 EFI_TCP4_ACCEPT Accept; 567 EFI_TCP4_TRANSMIT Transmit; 568 EFI_TCP4_RECEIVE Receive; 569 EFI_TCP4_CLOSE Close; 570 EFI_TCP4_CANCEL Cancel; 571 EFI_TCP4_POLL Poll; 572 }; 573 574 extern EFI_GUID gEfiTcp4ServiceBindingProtocolGuid; 575 extern EFI_GUID gEfiTcp4ProtocolGuid; 576 577 #endif 578