| | 1 | /** @file\r |
| | 2 | \r |
| | 3 | Copyright (c) 2005 - 2006, 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 | SockImpl.c\r |
| | 15 | \r |
| | 16 | Abstract:\r |
| | 17 | \r |
| | 18 | \r |
| | 19 | **/\r |
| | 20 | \r |
| | 21 | #include "SockImpl.h"\r |
| | 22 | \r |
| | 23 | /**\r |
| | 24 | Get the length of the data that can be retrieved from the socket\r |
| | 25 | receive buffer.\r |
| | 26 | \r |
| | 27 | @param SockBuffer Pointer to the socket receive buffer.\r |
| | 28 | @param IsUrg Pointer to a BOOLEAN variable. If TRUE the data is\r |
| | 29 | OOB.\r |
| | 30 | @param BufLen The maximum length of the data buffer to store the\r |
| | 31 | received data in socket layer.\r |
| | 32 | \r |
| | 33 | @return The length of the data can be retreived.\r |
| | 34 | \r |
| | 35 | **/\r |
| | 36 | UINT32\r |
| | 37 | SockTcpDataToRcv (\r |
| | 38 | IN SOCK_BUFFER *SockBuffer,\r |
| | 39 | OUT BOOLEAN *IsOOB,\r |
| | 40 | IN UINT32 BufLen\r |
| | 41 | );\r |
| | 42 | \r |
| | 43 | /**\r |
| | 44 | Process the send token.\r |
| | 45 | \r |
| | 46 | @param Sock Pointer to the socket.\r |
| | 47 | \r |
| | 48 | **/\r |
| | 49 | VOID\r |
| | 50 | SockProcessSndToken (\r |
| | 51 | IN SOCKET *Sock\r |
| | 52 | );\r |
| | 53 | \r |
| | 54 | /**\r |
| | 55 | \r |
| | 56 | \r |
| | 57 | **/\r |
| | 58 | VOID\r |
| | 59 | SockFreeFoo (\r |
| | 60 | IN EFI_EVENT Event\r |
| | 61 | )\r |
| | 62 | {\r |
| | 63 | return ;\r |
| | 64 | }\r |
| | 65 | \r |
| | 66 | \r |
| | 67 | /**\r |
| | 68 | Get the length of the data that can be retrieved from the socket\r |
| | 69 | receive buffer.\r |
| | 70 | \r |
| | 71 | @param SockBuffer Pointer to the socket receive buffer.\r |
| | 72 | @param IsUrg Pointer to a BOOLEAN variable. If TRUE the data is\r |
| | 73 | OOB.\r |
| | 74 | @param BufLen The maximum length of the data buffer to store the\r |
| | 75 | received data in socket layer.\r |
| | 76 | \r |
| | 77 | @return The length of the data can be retreived.\r |
| | 78 | \r |
| | 79 | **/\r |
| | 80 | UINT32\r |
| | 81 | SockTcpDataToRcv (\r |
| | 82 | IN SOCK_BUFFER *SockBuffer,\r |
| | 83 | OUT BOOLEAN *IsUrg,\r |
| | 84 | IN UINT32 BufLen\r |
| | 85 | )\r |
| | 86 | {\r |
| | 87 | NET_BUF *RcvBufEntry;\r |
| | 88 | UINT32 DataLen;\r |
| | 89 | TCP_RSV_DATA *TcpRsvData;\r |
| | 90 | BOOLEAN Urg;\r |
| | 91 | \r |
| | 92 | ASSERT ((SockBuffer != NULL) && (IsUrg != NULL) && (BufLen > 0));\r |
| | 93 | \r |
| | 94 | RcvBufEntry = SockBufFirst (SockBuffer);\r |
| | 95 | ASSERT (RcvBufEntry != NULL);\r |
| | 96 | \r |
| | 97 | TcpRsvData = (TCP_RSV_DATA *) RcvBufEntry->ProtoData;\r |
| | 98 | \r |
| | 99 | *IsUrg = (BOOLEAN) ((TcpRsvData->UrgLen > 0) ? TRUE : FALSE);\r |
| | 100 | \r |
| | 101 | if (*IsUrg && TcpRsvData->UrgLen < RcvBufEntry->TotalSize) {\r |
| | 102 | \r |
| | 103 | DataLen = MIN (TcpRsvData->UrgLen, BufLen);\r |
| | 104 | \r |
| | 105 | if (DataLen < TcpRsvData->UrgLen) {\r |
| | 106 | TcpRsvData->UrgLen = TcpRsvData->UrgLen - DataLen;\r |
| | 107 | } else {\r |
| | 108 | TcpRsvData->UrgLen = 0;\r |
| | 109 | }\r |
| | 110 | \r |
| | 111 | return DataLen;\r |
| | 112 | \r |
| | 113 | }\r |
| | 114 | \r |
| | 115 | DataLen = RcvBufEntry->TotalSize;\r |
| | 116 | \r |
| | 117 | RcvBufEntry = SockBufNext (SockBuffer, RcvBufEntry);\r |
| | 118 | \r |
| | 119 | while ((BufLen > DataLen) && (RcvBufEntry != NULL)) {\r |
| | 120 | \r |
| | 121 | TcpRsvData = (TCP_RSV_DATA *) RcvBufEntry->ProtoData;\r |
| | 122 | \r |
| | 123 | Urg = (BOOLEAN) ((TcpRsvData->UrgLen > 0) ? TRUE : FALSE);\r |
| | 124 | \r |
| | 125 | if (*IsUrg != Urg) {\r |
| | 126 | break;\r |
| | 127 | }\r |
| | 128 | \r |
| | 129 | if (*IsUrg && TcpRsvData->UrgLen < RcvBufEntry->TotalSize) {\r |
| | 130 | \r |
| | 131 | if (TcpRsvData->UrgLen + DataLen < BufLen) {\r |
| | 132 | TcpRsvData->UrgLen = 0;\r |
| | 133 | } else {\r |
| | 134 | TcpRsvData->UrgLen = TcpRsvData->UrgLen - (BufLen - DataLen);\r |
| | 135 | }\r |
| | 136 | \r |
| | 137 | return MIN (TcpRsvData->UrgLen + DataLen, BufLen);\r |
| | 138 | \r |
| | 139 | }\r |
| | 140 | \r |
| | 141 | DataLen += RcvBufEntry->TotalSize;\r |
| | 142 | \r |
| | 143 | RcvBufEntry = SockBufNext (SockBuffer, RcvBufEntry);\r |
| | 144 | }\r |
| | 145 | \r |
| | 146 | DataLen = MIN (BufLen, DataLen);\r |
| | 147 | return DataLen;\r |
| | 148 | }\r |
| | 149 | \r |
| | 150 | \r |
| | 151 | /**\r |
| | 152 | Copy data from socket buffer to application provided receive buffer.\r |
| | 153 | \r |
| | 154 | @param Sock Pointer to the socket.\r |
| | 155 | @param TcpRxData Pointer to the application provided receive buffer.\r |
| | 156 | @param RcvdBytes The maximum length of the data can be copied.\r |
| | 157 | @param IsOOB If TURE the data is OOB, else the data is normal.\r |
| | 158 | \r |
| | 159 | **/\r |
| | 160 | VOID\r |
| | 161 | SockSetTcpRxData (\r |
| | 162 | IN SOCKET *Sock,\r |
| | 163 | IN VOID *TcpRxData,\r |
| | 164 | IN UINT32 RcvdBytes,\r |
| | 165 | IN BOOLEAN IsOOB\r |
| | 166 | )\r |
| | 167 | {\r |
| | 168 | UINT32 Index;\r |
| | 169 | UINT32 CopyBytes;\r |
| | 170 | UINT32 OffSet;\r |
| | 171 | EFI_TCP4_RECEIVE_DATA *RxData;\r |
| | 172 | EFI_TCP4_FRAGMENT_DATA *Fragment;\r |
| | 173 | \r |
| | 174 | RxData = (EFI_TCP4_RECEIVE_DATA *) TcpRxData;\r |
| | 175 | \r |
| | 176 | OffSet = 0;\r |
| | 177 | \r |
| | 178 | ASSERT (RxData->DataLength >= RcvdBytes);\r |
| | 179 | \r |
| | 180 | RxData->DataLength = RcvdBytes;\r |
| | 181 | RxData->UrgentFlag = IsOOB;\r |
| | 182 | \r |
| | 183 | for (Index = 0; (Index < RxData->FragmentCount) && (RcvdBytes > 0); Index++) {\r |
| | 184 | \r |
| | 185 | Fragment = &RxData->FragmentTable[Index];\r |
| | 186 | CopyBytes = MIN ((UINT32) (Fragment->FragmentLength), RcvdBytes);\r |
| | 187 | \r |
| | 188 | NetbufQueCopy (\r |
| | 189 | Sock->RcvBuffer.DataQueue,\r |
| | 190 | OffSet,\r |
| | 191 | CopyBytes,\r |
| | 192 | Fragment->FragmentBuffer\r |
| | 193 | );\r |
| | 194 | \r |
| | 195 | Fragment->FragmentLength = CopyBytes;\r |
| | 196 | RcvdBytes -= CopyBytes;\r |
| | 197 | OffSet += CopyBytes;\r |
| | 198 | }\r |
| | 199 | }\r |
| | 200 | \r |
| | 201 | \r |
| | 202 | /**\r |
| | 203 | Get received data from the socket layer to the receive token.\r |
| | 204 | \r |
| | 205 | @param Sock Pointer to the socket.\r |
| | 206 | @param RcvToken Pointer to the application provided receive token.\r |
| | 207 | \r |
| | 208 | @return The length of data received in this token.\r |
| | 209 | \r |
| | 210 | **/\r |
| | 211 | UINT32\r |
| | 212 | SockProcessRcvToken (\r |
| | 213 | IN SOCKET *Sock,\r |
| | 214 | IN SOCK_IO_TOKEN *RcvToken\r |
| | 215 | )\r |
| | 216 | {\r |
| | 217 | UINT32 TokenRcvdBytes;\r |
| | 218 | EFI_TCP4_RECEIVE_DATA *RxData;\r |
| | 219 | BOOLEAN IsUrg;\r |
| | 220 | \r |
| | 221 | ASSERT (Sock != NULL);\r |
| | 222 | \r |
| | 223 | ASSERT (SOCK_STREAM == Sock->Type);\r |
| | 224 | \r |
| | 225 | RxData = RcvToken->Packet.RxData;\r |
| | 226 | \r |
| | 227 | TokenRcvdBytes = SockTcpDataToRcv (\r |
| | 228 | &Sock->RcvBuffer,\r |
| | 229 | &IsUrg,\r |
| | 230 | (UINT32) RxData->DataLength\r |
| | 231 | );\r |
| | 232 | \r |
| | 233 | //\r |
| | 234 | // Copy data from RcvBuffer of socket to user\r |
| | 235 | // provided RxData and set the fields in TCP RxData\r |
| | 236 | //\r |
| | 237 | SockSetTcpRxData (Sock, RxData, TokenRcvdBytes, IsUrg);\r |
| | 238 | \r |
| | 239 | SOCK_TRIM_RCV_BUFF (Sock, TokenRcvdBytes);\r |
| | 240 | SIGNAL_TOKEN (&(RcvToken->Token), EFI_SUCCESS);\r |
| | 241 | \r |
| | 242 | return TokenRcvdBytes;\r |
| | 243 | }\r |
| | 244 | \r |
| | 245 | \r |
| | 246 | /**\r |
| | 247 | Process the TCP send data, buffer the tcp txdata and append\r |
| | 248 | the buffer to socket send buffer,then try to send it.\r |
| | 249 | \r |
| | 250 | @param Sock Pointer to the socket.\r |
| | 251 | @param TcpTxData Pointer to the tcp txdata.\r |
| | 252 | \r |
| | 253 | @retval EFI_SUCCESS The operation is completed successfully.\r |
| | 254 | @retval EFI_OUT_OF_RESOURCES Failed due to resource limit.\r |
| | 255 | \r |
| | 256 | **/\r |
| | 257 | EFI_STATUS\r |
| | 258 | SockProcessTcpSndData (\r |
| | 259 | IN SOCKET *Sock,\r |
| | 260 | IN VOID *TcpTxData\r |
| | 261 | )\r |
| | 262 | {\r |
| | 263 | NET_BUF *SndData;\r |
| | 264 | EFI_STATUS Status;\r |
| | 265 | EFI_TCP4_TRANSMIT_DATA *TxData;\r |
| | 266 | \r |
| | 267 | TxData = (EFI_TCP4_TRANSMIT_DATA *) TcpTxData;\r |
| | 268 | \r |
| | 269 | //\r |
| | 270 | // transform this TxData into a NET_BUFFER\r |
| | 271 | // and insert it into Sock->SndBuffer\r |
| | 272 | //\r |
| | 273 | SndData = NetbufFromExt (\r |
| | 274 | (NET_FRAGMENT *) TxData->FragmentTable,\r |
| | 275 | (UINT32) TxData->FragmentCount,\r |
| | 276 | 0,\r |
| | 277 | 0,\r |
| | 278 | SockFreeFoo,\r |
| | 279 | NULL\r |
| | 280 | );\r |
| | 281 | \r |
| | 282 | if (NULL == SndData) {\r |
| | 283 | DEBUG ((EFI_D_ERROR, "SockKProcessSndData: Failed to"\r |
| | 284 | " call NetBufferFromExt\n"));\r |
| | 285 | \r |
| | 286 | return EFI_OUT_OF_RESOURCES;\r |
| | 287 | }\r |
| | 288 | \r |
| | 289 | NetbufQueAppend (Sock->SndBuffer.DataQueue, SndData);\r |
| | 290 | \r |
| | 291 | //\r |
| | 292 | // notify the low layer protocol to handle this send token\r |
| | 293 | //\r |
| | 294 | if (TxData->Urgent) {\r |
| | 295 | Status = Sock->ProtoHandler (Sock, SOCK_SNDURG, NULL);\r |
| | 296 | \r |
| | 297 | if (EFI_ERROR (Status)) {\r |
| | 298 | return Status;\r |
| | 299 | }\r |
| | 300 | }\r |
| | 301 | \r |
| | 302 | if (TxData->Push) {\r |
| | 303 | Status = Sock->ProtoHandler (Sock, SOCK_SNDPUSH, NULL);\r |
| | 304 | \r |
| | 305 | if (EFI_ERROR (Status)) {\r |
| | 306 | return Status;\r |
| | 307 | }\r |
| | 308 | }\r |
| | 309 | \r |
| | 310 | //\r |
| | 311 | // low layer protocol should really handle the sending\r |
| | 312 | // process when catching SOCK_SND request\r |
| | 313 | //\r |
| | 314 | Status = Sock->ProtoHandler (Sock, SOCK_SND, NULL);\r |
| | 315 | \r |
| | 316 | if (EFI_ERROR (Status)) {\r |
| | 317 | return Status;\r |
| | 318 | }\r |
| | 319 | \r |
| | 320 | return EFI_SUCCESS;\r |
| | 321 | }\r |
| | 322 | \r |
| | 323 | \r |
| | 324 | /**\r |
| | 325 | Flush the tokens in the specific token list.\r |
| | 326 | \r |
| | 327 | @param Sock Pointer to the socket.\r |
| | 328 | @param PendingTokenList Pointer to the token list to be flushed.\r |
| | 329 | \r |
| | 330 | **/\r |
| | 331 | VOID\r |
| | 332 | SockFlushPendingToken (\r |
| | 333 | IN SOCKET *Sock,\r |
| | 334 | IN LIST_ENTRY *PendingTokenList\r |
| | 335 | )\r |
| | 336 | {\r |
| | 337 | SOCK_TOKEN *SockToken;\r |
| | 338 | SOCK_COMPLETION_TOKEN *Token;\r |
| | 339 | \r |
| | 340 | ASSERT ((Sock != NULL) && (PendingTokenList != NULL));\r |
| | 341 | \r |
| | 342 | while (!IsListEmpty (PendingTokenList)) {\r |
| | 343 | SockToken = NET_LIST_HEAD (\r |
| | 344 | PendingTokenList,\r |
| | 345 | SOCK_TOKEN,\r |
| | 346 | TokenList\r |
| | 347 | );\r |
| | 348 | \r |
| | 349 | Token = SockToken->Token;\r |
| | 350 | SIGNAL_TOKEN (Token, Sock->SockError);\r |
| | 351 | \r |
| | 352 | RemoveEntryList (&(SockToken->TokenList));\r |
| | 353 | gBS->FreePool (SockToken);\r |
| | 354 | }\r |
| | 355 | }\r |
| | 356 | \r |
| | 357 | \r |
| | 358 | /**\r |
| | 359 | Wake up the connection token while the connection is successfully established, \r |
| | 360 | then try to process any pending send token.\r |
| | 361 | \r |
| | 362 | @param Sock Pointer to the socket.\r |
| | 363 | \r |
| | 364 | **/\r |
| | 365 | VOID\r |
| | 366 | SockWakeConnToken (\r |
| | 367 | IN SOCKET *Sock\r |
| | 368 | )\r |
| | 369 | {\r |
| | 370 | ASSERT (Sock->ConnectionToken != NULL);\r |
| | 371 | \r |
| | 372 | SIGNAL_TOKEN (Sock->ConnectionToken, EFI_SUCCESS);\r |
| | 373 | Sock->ConnectionToken = NULL;\r |
| | 374 | \r |
| | 375 | //\r |
| | 376 | // check to see if some pending send token existed?\r |
| | 377 | //\r |
| | 378 | SockProcessSndToken (Sock);\r |
| | 379 | return ;\r |
| | 380 | }\r |
| | 381 | \r |
| | 382 | \r |
| | 383 | /**\r |
| | 384 | Wake up the listen token while the connection is established successfully.\r |
| | 385 | \r |
| | 386 | @param Sock Pointer to the socket.\r |
| | 387 | \r |
| | 388 | **/\r |
| | 389 | VOID\r |
| | 390 | SockWakeListenToken (\r |
| | 391 | IN SOCKET *Sock\r |
| | 392 | )\r |
| | 393 | {\r |
| | 394 | SOCKET *Parent;\r |
| | 395 | SOCK_TOKEN *SockToken;\r |
| | 396 | EFI_TCP4_LISTEN_TOKEN *ListenToken;\r |
| | 397 | \r |
| | 398 | Parent = Sock->Parent;\r |
| | 399 | \r |
| | 400 | ASSERT ((Parent != NULL) && SOCK_IS_LISTENING (Parent) && SOCK_IS_CONNECTED (Sock));\r |
| | 401 | \r |
| | 402 | if (!IsListEmpty (&Parent->ListenTokenList)) {\r |
| | 403 | SockToken = NET_LIST_HEAD (\r |
| | 404 | &Parent->ListenTokenList,\r |
| | 405 | SOCK_TOKEN,\r |
| | 406 | TokenList\r |
| | 407 | );\r |
| | 408 | \r |
| | 409 | ListenToken = (EFI_TCP4_LISTEN_TOKEN *) SockToken->Token;\r |
| | 410 | ListenToken->NewChildHandle = Sock->SockHandle;\r |
| | 411 | \r |
| | 412 | SIGNAL_TOKEN (&(ListenToken->CompletionToken), EFI_SUCCESS);\r |
| | 413 | \r |
| | 414 | RemoveEntryList (&SockToken->TokenList);\r |
| | 415 | gBS->FreePool (SockToken);\r |
| | 416 | \r |
| | 417 | RemoveEntryList (&Sock->ConnectionList);\r |
| | 418 | \r |
| | 419 | Parent->ConnCnt--;\r |
| | 420 | DEBUG ((EFI_D_WARN, "SockWakeListenToken: accept a socket, now conncnt is %d", Parent->ConnCnt));\r |
| | 421 | \r |
| | 422 | Sock->Parent = NULL;\r |
| | 423 | }\r |
| | 424 | }\r |
| | 425 | \r |
| | 426 | \r |
| | 427 | /**\r |
| | 428 | Wake up the receive token while some data is received.\r |
| | 429 | \r |
| | 430 | @param Sock Pointer to the socket.\r |
| | 431 | \r |
| | 432 | **/\r |
| | 433 | VOID\r |
| | 434 | SockWakeRcvToken (\r |
| | 435 | IN SOCKET *Sock\r |
| | 436 | )\r |
| | 437 | {\r |
| | 438 | UINT32 RcvdBytes;\r |
| | 439 | UINT32 TokenRcvdBytes;\r |
| | 440 | SOCK_TOKEN *SockToken;\r |
| | 441 | SOCK_IO_TOKEN *RcvToken;\r |
| | 442 | \r |
| | 443 | ASSERT (Sock->RcvBuffer.DataQueue != NULL);\r |
| | 444 | \r |
| | 445 | RcvdBytes = (Sock->RcvBuffer.DataQueue)->BufSize;\r |
| | 446 | \r |
| | 447 | ASSERT (RcvdBytes > 0);\r |
| | 448 | \r |
| | 449 | while (RcvdBytes > 0 && !IsListEmpty (&Sock->RcvTokenList)) {\r |
| | 450 | \r |
| | 451 | SockToken = NET_LIST_HEAD (\r |
| | 452 | &Sock->RcvTokenList,\r |
| | 453 | SOCK_TOKEN,\r |
| | 454 | TokenList\r |
| | 455 | );\r |
| | 456 | \r |
| | 457 | RcvToken = (SOCK_IO_TOKEN *) SockToken->Token;\r |
| | 458 | TokenRcvdBytes = SockProcessRcvToken (Sock, RcvToken);\r |
| | 459 | \r |
| | 460 | if (0 == TokenRcvdBytes) {\r |
| | 461 | return ;\r |
| | 462 | }\r |
| | 463 | \r |
| | 464 | RemoveEntryList (&(SockToken->TokenList));\r |
| | 465 | gBS->FreePool (SockToken);\r |
| | 466 | RcvdBytes -= TokenRcvdBytes;\r |
| | 467 | }\r |
| | 468 | }\r |
| | 469 | \r |
| | 470 | \r |
| | 471 | /**\r |
| | 472 | Process the send token.\r |
| | 473 | \r |
| | 474 | @param Sock Pointer to the socket.\r |
| | 475 | \r |
| | 476 | **/\r |
| | 477 | VOID\r |
| | 478 | SockProcessSndToken (\r |
| | 479 | IN SOCKET *Sock\r |
| | 480 | )\r |
| | 481 | {\r |
| | 482 | UINT32 FreeSpace;\r |
| | 483 | SOCK_TOKEN *SockToken;\r |
| | 484 | UINT32 DataLen;\r |
| | 485 | SOCK_IO_TOKEN *SndToken;\r |
| | 486 | EFI_TCP4_TRANSMIT_DATA *TxData;\r |
| | 487 | EFI_STATUS Status;\r |
| | 488 | \r |
| | 489 | ASSERT ((Sock != NULL) && (SOCK_STREAM == Sock->Type));\r |
| | 490 | \r |
| | 491 | FreeSpace = SockGetFreeSpace (Sock, SOCK_SND_BUF);\r |
| | 492 | \r |
| | 493 | //\r |
| | 494 | // to determine if process a send token using\r |
| | 495 | // socket layer flow control policy\r |
| | 496 | //\r |
| | 497 | while ((FreeSpace >= Sock->SndBuffer.LowWater) &&\r |
| | 498 | !IsListEmpty (&Sock->SndTokenList)) {\r |
| | 499 | \r |
| | 500 | SockToken = NET_LIST_HEAD (\r |
| | 501 | &(Sock->SndTokenList),\r |
| | 502 | SOCK_TOKEN,\r |
| | 503 | TokenList\r |
| | 504 | );\r |
| | 505 | \r |
| | 506 | //\r |
| | 507 | // process this token\r |
| | 508 | //\r |
| | 509 | RemoveEntryList (&(SockToken->TokenList));\r |
| | 510 | InsertTailList (\r |
| | 511 | &(Sock->ProcessingSndTokenList),\r |
| | 512 | &(SockToken->TokenList)\r |
| | 513 | );\r |
| | 514 | \r |
| | 515 | //\r |
| | 516 | // Proceess it in the light of SockType\r |
| | 517 | //\r |
| | 518 | SndToken = (SOCK_IO_TOKEN *) SockToken->Token;\r |
| | 519 | TxData = SndToken->Packet.TxData;\r |
| | 520 | \r |
| | 521 | DataLen = (UINT32) TxData->DataLength;\r |
| | 522 | Status = SockProcessTcpSndData (Sock, TxData);\r |
| | 523 | \r |
| | 524 | if (EFI_ERROR (Status)) {\r |
| | 525 | goto OnError;\r |
| | 526 | }\r |
| | 527 | \r |
| | 528 | if (DataLen >= FreeSpace) {\r |
| | 529 | FreeSpace = 0;\r |
| | 530 | \r |
| | 531 | } else {\r |
| | 532 | FreeSpace -= DataLen;\r |
| | 533 | \r |
| | 534 | }\r |
| | 535 | }\r |
| | 536 | \r |
| | 537 | return ;\r |
| | 538 | \r |
| | 539 | OnError:\r |
| | 540 | \r |
| | 541 | RemoveEntryList (&SockToken->TokenList);\r |
| | 542 | SIGNAL_TOKEN (SockToken->Token, Status);\r |
| | 543 | gBS->FreePool (SockToken);\r |
| | 544 | }\r |
| | 545 | \r |
| | 546 | \r |
| | 547 | /**\r |
| | 548 | Create a socket with initial data SockInitData.\r |
| | 549 | \r |
| | 550 | @param SockInitData Pointer to the initial data of the socket.\r |
| | 551 | \r |
| | 552 | @return Pointer to the newly created socket.\r |
| | 553 | \r |
| | 554 | **/\r |
| | 555 | SOCKET *\r |
| | 556 | SockCreate (\r |
| | 557 | IN SOCK_INIT_DATA *SockInitData\r |
| | 558 | )\r |
| | 559 | {\r |
| | 560 | SOCKET *Sock;\r |
| | 561 | SOCKET *Parent;\r |
| | 562 | EFI_STATUS Status;\r |
| | 563 | \r |
| | 564 | ASSERT ((SockInitData != NULL) && (SockInitData->ProtoHandler != NULL));\r |
| | 565 | ASSERT (SockInitData->Type == SOCK_STREAM);\r |
| | 566 | ASSERT ((SockInitData->ProtoData != NULL) && (SockInitData->DataSize <= PROTO_RESERVED_LEN));\r |
| | 567 | \r |
| | 568 | Parent = SockInitData->Parent;\r |
| | 569 | \r |
| | 570 | if ((Parent != NULL) && (Parent->ConnCnt == Parent->BackLog)) {\r |
| | 571 | DEBUG (\r |
| | 572 | (EFI_D_ERROR,\r |
| | 573 | "SockCreate: Socket parent has "\r |
| | 574 | "reached its connection limit with %d ConnCnt and %d BackLog\n",\r |
| | 575 | Parent->ConnCnt,\r |
| | 576 | Parent->BackLog)\r |
| | 577 | );\r |
| | 578 | \r |
| | 579 | return NULL;\r |
| | 580 | }\r |
| | 581 | \r |
| | 582 | Sock = AllocateZeroPool (sizeof (SOCKET));\r |
| | 583 | if (NULL == Sock) {\r |
| | 584 | \r |
| | 585 | DEBUG ((EFI_D_ERROR, "SockCreate: No resource to create a new socket\n"));\r |
| | 586 | return NULL;\r |
| | 587 | }\r |
| | 588 | \r |
| | 589 | InitializeListHead (&Sock->Link);\r |
| | 590 | InitializeListHead (&Sock->ConnectionList);\r |
| | 591 | InitializeListHead (&Sock->ListenTokenList);\r |
| | 592 | InitializeListHead (&Sock->RcvTokenList);\r |
| | 593 | InitializeListHead (&Sock->SndTokenList);\r |
| | 594 | InitializeListHead (&Sock->ProcessingSndTokenList);\r |
| | 595 | \r |
| | 596 | EfiInitializeLock (&(Sock->Lock), TPL_CALLBACK);\r |
| | 597 | \r |
| | 598 | Sock->SndBuffer.DataQueue = NetbufQueAlloc ();\r |
| | 599 | if (NULL == Sock->SndBuffer.DataQueue) {\r |
| | 600 | DEBUG ((EFI_D_ERROR, "SockCreate: No resource to allocate"\r |
| | 601 | " SndBuffer for new socket\n"));\r |
| | 602 | \r |
| | 603 | goto OnError;\r |
| | 604 | }\r |
| | 605 | \r |
| | 606 | Sock->RcvBuffer.DataQueue = NetbufQueAlloc ();\r |
| | 607 | if (NULL == Sock->RcvBuffer.DataQueue) {\r |
| | 608 | DEBUG ((EFI_D_ERROR, "SockCreate: No resource to allocate "\r |
| | 609 | "RcvBuffer for new socket\n"));\r |
| | 610 | \r |
| | 611 | goto OnError;\r |
| | 612 | }\r |
| | 613 | \r |
| | 614 | Sock->Signature = SOCK_SIGNATURE;\r |
| | 615 | \r |
| | 616 | Sock->Parent = Parent;\r |
| | 617 | Sock->BackLog = SockInitData->BackLog;\r |
| | 618 | Sock->ProtoHandler = SockInitData->ProtoHandler;\r |
| | 619 | Sock->SndBuffer.HighWater = SockInitData->SndBufferSize;\r |
| | 620 | Sock->RcvBuffer.HighWater = SockInitData->RcvBufferSize;\r |
| | 621 | Sock->Type = SockInitData->Type;\r |
| | 622 | Sock->DriverBinding = SockInitData->DriverBinding;\r |
| | 623 | Sock->State = SockInitData->State;\r |
| | 624 | Sock->CreateCallback = SockInitData->CreateCallback;\r |
| | 625 | Sock->DestroyCallback = SockInitData->DestroyCallback;\r |
| | 626 | Sock->Context = SockInitData->Context;\r |
| | 627 | \r |
| | 628 | Sock->SockError = EFI_ABORTED;\r |
| | 629 | Sock->SndBuffer.LowWater = SOCK_BUFF_LOW_WATER;\r |
| | 630 | Sock->RcvBuffer.LowWater = SOCK_BUFF_LOW_WATER;\r |
| | 631 | \r |
| | 632 | //\r |
| | 633 | // Install protocol on Sock->SockHandle\r |
| | 634 | //\r |
| | 635 | CopyMem (\r |
| | 636 | &(Sock->NetProtocol.TcpProtocol),\r |
| | 637 | SockInitData->Protocol,\r |
| | 638 | sizeof (EFI_TCP4_PROTOCOL)\r |
| | 639 | );\r |
| | 640 | \r |
| | 641 | //\r |
| | 642 | // copy the protodata into socket\r |
| | 643 | //\r |
| | 644 | CopyMem (Sock->ProtoReserved, SockInitData->ProtoData, SockInitData->DataSize);\r |
| | 645 | \r |
| | 646 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
| | 647 | &Sock->SockHandle,\r |
| | 648 | &gEfiTcp4ProtocolGuid,\r |
| | 649 | &(Sock->NetProtocol.TcpProtocol),\r |
| | 650 | NULL\r |
| | 651 | );\r |
| | 652 | \r |
| | 653 | if (EFI_ERROR (Status)) {\r |
| | 654 | DEBUG ((EFI_D_ERROR, "SockCreate: Install TCP protocol in "\r |
| | 655 | "socket failed with %r\n", Status));\r |
| | 656 | \r |
| | 657 | goto OnError;\r |
| | 658 | }\r |
| | 659 | \r |
| | 660 | if (Parent != NULL) {\r |
| | 661 | ASSERT (Parent->BackLog > 0);\r |
| | 662 | ASSERT (SOCK_IS_LISTENING (Parent));\r |
| | 663 | \r |
| | 664 | //\r |
| | 665 | // need to add it into Parent->ConnectionList\r |
| | 666 | // if the Parent->ConnCnt < Parent->BackLog\r |
| | 667 | //\r |
| | 668 | Parent->ConnCnt++;\r |
| | 669 | \r |
| | 670 | DEBUG (\r |
| | 671 | (EFI_D_WARN,\r |
| | 672 | "SockCreate: Create a new socket and add to parent, now conncnt is %d\n",\r |
| | 673 | Parent->ConnCnt)\r |
| | 674 | );\r |
| | 675 | \r |
| | 676 | InsertTailList (&Parent->ConnectionList, &Sock->ConnectionList);\r |
| | 677 | }\r |
| | 678 | \r |
| | 679 | if (Sock->CreateCallback != NULL) {\r |
| | 680 | Status = Sock->CreateCallback (Sock, Sock->Context);\r |
| | 681 | if (EFI_ERROR (Status)) {\r |
| | 682 | goto OnError;\r |
| | 683 | }\r |
| | 684 | }\r |
| | 685 | \r |
| | 686 | return Sock;\r |
| | 687 | \r |
| | 688 | OnError:\r |
| | 689 | \r |
| | 690 | if (Sock->SockHandle != NULL) {\r |
| | 691 | gBS->UninstallMultipleProtocolInterfaces (\r |
| | 692 | Sock->SockHandle,\r |
| | 693 | &gEfiTcp4ProtocolGuid,\r |
| | 694 | &(Sock->NetProtocol.TcpProtocol),\r |
| | 695 | NULL\r |
| | 696 | );\r |
| | 697 | }\r |
| | 698 | \r |
| | 699 | if (NULL != Sock->SndBuffer.DataQueue) {\r |
| | 700 | NetbufQueFree (Sock->SndBuffer.DataQueue);\r |
| | 701 | }\r |
| | 702 | \r |
| | 703 | if (NULL != Sock->RcvBuffer.DataQueue) {\r |
| | 704 | NetbufQueFree (Sock->RcvBuffer.DataQueue);\r |
| | 705 | }\r |
| | 706 | \r |
| | 707 | gBS->FreePool (Sock);\r |
| | 708 | \r |
| | 709 | return NULL;\r |
| | 710 | }\r |
| | 711 | \r |
| | 712 | \r |
| | 713 | /**\r |
| | 714 | Destroy a socket.\r |
| | 715 | \r |
| | 716 | @param Sock Pointer to the socket.\r |
| | 717 | \r |
| | 718 | **/\r |
| | 719 | VOID\r |
| | 720 | SockDestroy (\r |
| | 721 | IN SOCKET *Sock\r |
| | 722 | )\r |
| | 723 | {\r |
| | 724 | VOID *SockProtocol;\r |
| | 725 | EFI_GUID *ProtocolGuid;\r |
| | 726 | EFI_STATUS Status;\r |
| | 727 | \r |
| | 728 | ASSERT (SOCK_STREAM == Sock->Type);\r |
| | 729 | \r |
| | 730 | if (Sock->DestroyCallback != NULL) {\r |
| | 731 | Sock->DestroyCallback (Sock, Sock->Context);\r |
| | 732 | }\r |
| | 733 | \r |
| | 734 | //\r |
| | 735 | // Flush the completion token buffered\r |
| | 736 | // by sock and rcv, snd buffer\r |
| | 737 | //\r |
| | 738 | if (!SOCK_IS_UNCONFIGURED (Sock)) {\r |
| | 739 | \r |
| | 740 | SockConnFlush (Sock);\r |
| | 741 | SockSetState (Sock, SO_CLOSED);\r |
| | 742 | Sock->ConfigureState = SO_UNCONFIGURED;\r |
| | 743 | \r |
| | 744 | }\r |
| | 745 | //\r |
| | 746 | // Destory the RcvBuffer Queue and SendBuffer Queue\r |
| | 747 | //\r |
| | 748 | NetbufQueFree (Sock->RcvBuffer.DataQueue);\r |
| | 749 | NetbufQueFree (Sock->SndBuffer.DataQueue);\r |
| | 750 | \r |
| | 751 | //\r |
| | 752 | // Remove it from parent connection list if needed\r |
| | 753 | //\r |
| | 754 | if (Sock->Parent != NULL) {\r |
| | 755 | \r |
| | 756 | RemoveEntryList (&(Sock->ConnectionList));\r |
| | 757 | (Sock->Parent->ConnCnt)--;\r |
| | 758 | \r |
| | 759 | DEBUG (\r |
| | 760 | (EFI_D_WARN,\r |
| | 761 | "SockDestory: Delete a unaccepted socket from parent"\r |
| | 762 | "now conncnt is %d\n",\r |
| | 763 | Sock->Parent->ConnCnt)\r |
| | 764 | );\r |
| | 765 | \r |
| | 766 | Sock->Parent = NULL;\r |
| | 767 | }\r |
| | 768 | \r |
| | 769 | //\r |
| | 770 | // Set the protocol guid and driver binding handle\r |
| | 771 | // in the light of Sock->SockType\r |
| | 772 | //\r |
| | 773 | ProtocolGuid = &gEfiTcp4ProtocolGuid;\r |
| | 774 | \r |
| | 775 | //\r |
| | 776 | // Retrieve the protocol installed on this sock\r |
| | 777 | //\r |
| | 778 | Status = gBS->OpenProtocol (\r |
| | 779 | Sock->SockHandle,\r |
| | 780 | ProtocolGuid,\r |
| | 781 | &SockProtocol,\r |
| | 782 | Sock->DriverBinding,\r |
| | 783 | Sock->SockHandle,\r |
| | 784 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
| | 785 | );\r |
| | 786 | \r |
| | 787 | if (EFI_ERROR (Status)) {\r |
| | 788 | \r |
| | 789 | DEBUG ((EFI_D_ERROR, "SockDestroy: Open protocol installed "\r |
| | 790 | "on socket failed with %r\n", Status));\r |
| | 791 | \r |
| | 792 | goto FreeSock;\r |
| | 793 | }\r |
| | 794 | \r |
| | 795 | //\r |
| | 796 | // Uninstall the protocol installed on this sock\r |
| | 797 | // in the light of Sock->SockType\r |
| | 798 | //\r |
| | 799 | gBS->UninstallMultipleProtocolInterfaces (\r |
| | 800 | Sock->SockHandle,\r |
| | 801 | ProtocolGuid,\r |
| | 802 | SockProtocol,\r |
| | 803 | NULL\r |
| | 804 | );\r |
| | 805 | \r |
| | 806 | FreeSock:\r |
| | 807 | gBS->FreePool (Sock);\r |
| | 808 | return ;\r |
| | 809 | }\r |
| | 810 | \r |
| | 811 | \r |
| | 812 | /**\r |
| | 813 | Flush the socket.\r |
| | 814 | \r |
| | 815 | @param Sock Pointer to the socket.\r |
| | 816 | \r |
| | 817 | **/\r |
| | 818 | VOID\r |
| | 819 | SockConnFlush (\r |
| | 820 | IN SOCKET *Sock\r |
| | 821 | )\r |
| | 822 | {\r |
| | 823 | SOCKET *Child;\r |
| | 824 | \r |
| | 825 | ASSERT (Sock != NULL);\r |
| | 826 | \r |
| | 827 | //\r |
| | 828 | // Clear the flag in this socket\r |
| | 829 | //\r |
| | 830 | Sock->Flag = 0;\r |
| | 831 | \r |
| | 832 | //\r |
| | 833 | // Flush the SndBuffer and RcvBuffer of Sock\r |
| | 834 | //\r |
| | 835 | NetbufQueFlush (Sock->SndBuffer.DataQueue);\r |
| | 836 | NetbufQueFlush (Sock->RcvBuffer.DataQueue);\r |
| | 837 | \r |
| | 838 | //\r |
| | 839 | // Signal the pending token\r |
| | 840 | //\r |
| | 841 | if (Sock->ConnectionToken != NULL) {\r |
| | 842 | SIGNAL_TOKEN (Sock->ConnectionToken, Sock->SockError);\r |
| | 843 | Sock->ConnectionToken = NULL;\r |
| | 844 | }\r |
| | 845 | \r |
| | 846 | if (Sock->CloseToken != NULL) {\r |
| | 847 | SIGNAL_TOKEN (Sock->CloseToken, Sock->SockError);\r |
| | 848 | Sock->CloseToken = NULL;\r |
| | 849 | }\r |
| | 850 | \r |
| | 851 | SockFlushPendingToken (Sock, &(Sock->ListenTokenList));\r |
| | 852 | SockFlushPendingToken (Sock, &(Sock->RcvTokenList));\r |
| | 853 | SockFlushPendingToken (Sock, &(Sock->SndTokenList));\r |
| | 854 | SockFlushPendingToken (Sock, &(Sock->ProcessingSndTokenList));\r |
| | 855 | \r |
| | 856 | //\r |
| | 857 | // Destroy the pending connection, if it is a listening socket\r |
| | 858 | //\r |
| | 859 | if (SOCK_IS_LISTENING (Sock)) {\r |
| | 860 | while (!IsListEmpty (&Sock->ConnectionList)) {\r |
| | 861 | Child = NET_LIST_HEAD (\r |
| | 862 | &Sock->ConnectionList,\r |
| | 863 | SOCKET,\r |
| | 864 | ConnectionList\r |
| | 865 | );\r |
| | 866 | \r |
| | 867 | SockDestroyChild (Child);\r |
| | 868 | }\r |
| | 869 | \r |
| | 870 | Sock->ConnCnt = 0;\r |
| | 871 | }\r |
| | 872 | \r |
| | 873 | return ;\r |
| | 874 | }\r |
| | 875 | \r |
| | 876 | \r |
| | 877 | /**\r |
| | 878 | Set the state of the socket.\r |
| | 879 | \r |
| | 880 | @param Sock Pointer to the socket.\r |
| | 881 | @param State The new state to be set.\r |
| | 882 | \r |
| | 883 | **/\r |
| | 884 | VOID\r |
| | 885 | SockSetState (\r |
| | 886 | IN SOCKET *Sock,\r |
| | 887 | IN SOCK_STATE State\r |
| | 888 | )\r |
| | 889 | {\r |
| | 890 | Sock->State = State;\r |
| | 891 | }\r |
| | 892 | \r |
| | 893 | \r |
| | 894 | /**\r |
| | 895 | Clone a new socket including its associated protocol control block.\r |
| | 896 | \r |
| | 897 | @param Sock Pointer to the socket to be cloned.\r |
| | 898 | \r |
| | 899 | @return Pointer to the newly cloned socket. If NULL, error condition occurred.\r |
| | 900 | \r |
| | 901 | **/\r |
| | 902 | SOCKET *\r |
| | 903 | SockClone (\r |
| | 904 | IN SOCKET *Sock\r |
| | 905 | )\r |
| | 906 | {\r |
| | 907 | SOCKET *ClonedSock;\r |
| | 908 | SOCK_INIT_DATA InitData;\r |
| | 909 | \r |
| | 910 | InitData.BackLog = Sock->BackLog;\r |
| | 911 | InitData.Parent = Sock;\r |
| | 912 | InitData.State = Sock->State;\r |
| | 913 | InitData.ProtoHandler = Sock->ProtoHandler;\r |
| | 914 | InitData.Type = Sock->Type;\r |
| | 915 | InitData.RcvBufferSize = Sock->RcvBuffer.HighWater;\r |
| | 916 | InitData.SndBufferSize = Sock->SndBuffer.HighWater;\r |
| | 917 | InitData.DriverBinding = Sock->DriverBinding;\r |
| | 918 | InitData.Protocol = &(Sock->NetProtocol);\r |
| | 919 | InitData.CreateCallback = Sock->CreateCallback;\r |
| | 920 | InitData.DestroyCallback = Sock->DestroyCallback;\r |
| | 921 | InitData.Context = Sock->Context;\r |
| | 922 | InitData.ProtoData = Sock->ProtoReserved;\r |
| | 923 | InitData.DataSize = sizeof (Sock->ProtoReserved);\r |
| | 924 | \r |
| | 925 | ClonedSock = SockCreate (&InitData);\r |
| | 926 | \r |
| | 927 | if (NULL == ClonedSock) {\r |
| | 928 | DEBUG ((EFI_D_ERROR, "SockClone: no resource to create a cloned sock\n"));\r |
| | 929 | return NULL;\r |
| | 930 | }\r |
| | 931 | \r |
| | 932 | SockSetState (ClonedSock, SO_CONNECTING);\r |
| | 933 | ClonedSock->ConfigureState = Sock->ConfigureState;\r |
| | 934 | \r |
| | 935 | return ClonedSock;\r |
| | 936 | }\r |
| | 937 | \r |
| | 938 | \r |
| | 939 | /**\r |
| | 940 | Called by the low layer protocol to indicate the socket a connection is \r |
| | 941 | established. This function just changes the socket's state to SO_CONNECTED \r |
| | 942 | and signals the token used for connection establishment.\r |
| | 943 | \r |
| | 944 | @param Sock Pointer to the socket associated with the\r |
| | 945 | established connection.\r |
| | 946 | **/\r |
| | 947 | VOID\r |
| | 948 | SockConnEstablished (\r |
| | 949 | IN SOCKET *Sock\r |
| | 950 | )\r |
| | 951 | {\r |
| | 952 | \r |
| | 953 | ASSERT (SO_CONNECTING == Sock->State);\r |
| | 954 | \r |
| | 955 | SockSetState (Sock, SO_CONNECTED);\r |
| | 956 | \r |
| | 957 | if (NULL == Sock->Parent) {\r |
| | 958 | SockWakeConnToken (Sock);\r |
| | 959 | } else {\r |
| | 960 | SockWakeListenToken (Sock);\r |
| | 961 | }\r |
| | 962 | \r |
| | 963 | return ;\r |
| | 964 | }\r |
| | 965 | \r |
| | 966 | \r |
| | 967 | /**\r |
| | 968 | Called by the low layer protocol to indicate the connection is closed; This \r |
| | 969 | function flushes the socket, sets the state to SO_CLOSED and signals the close \r |
| | 970 | token.\r |
| | 971 | \r |
| | 972 | @param Sock Pointer to the socket associated with the closed\r |
| | 973 | connection.\r |
| | 974 | **/\r |
| | 975 | VOID\r |
| | 976 | SockConnClosed (\r |
| | 977 | IN SOCKET *Sock\r |
| | 978 | )\r |
| | 979 | {\r |
| | 980 | if (Sock->CloseToken != NULL) {\r |
| | 981 | SIGNAL_TOKEN (Sock->CloseToken, EFI_SUCCESS);\r |
| | 982 | Sock->CloseToken = NULL;\r |
| | 983 | }\r |
| | 984 | \r |
| | 985 | SockConnFlush (Sock);\r |
| | 986 | SockSetState (Sock, SO_CLOSED);\r |
| | 987 | \r |
| | 988 | if (Sock->Parent != NULL) {\r |
| | 989 | SockDestroyChild (Sock);\r |
| | 990 | }\r |
| | 991 | \r |
| | 992 | }\r |
| | 993 | \r |
| | 994 | \r |
| | 995 | /**\r |
| | 996 | Called by low layer protocol to indicate that some data is sent or processed; \r |
| | 997 | This function trims the sent data in the socket send buffer, signals the data \r |
| | 998 | token if proper.\r |
| | 999 | \r |
| | 1000 | @param Sock Pointer to the socket.\r |
| | 1001 | @param Count The length of the data processed or sent, in bytes.\r |
| | 1002 | \r |
| | 1003 | **/\r |
| | 1004 | VOID\r |
| | 1005 | SockDataSent (\r |
| | 1006 | IN SOCKET *Sock,\r |
| | 1007 | IN UINT32 Count\r |
| | 1008 | )\r |
| | 1009 | {\r |
| | 1010 | SOCK_TOKEN *SockToken;\r |
| | 1011 | SOCK_COMPLETION_TOKEN *SndToken;\r |
| | 1012 | \r |
| | 1013 | ASSERT (!IsListEmpty (&Sock->ProcessingSndTokenList));\r |
| | 1014 | ASSERT (Count <= (Sock->SndBuffer.DataQueue)->BufSize);\r |
| | 1015 | \r |
| | 1016 | NetbufQueTrim (Sock->SndBuffer.DataQueue, Count);\r |
| | 1017 | \r |
| | 1018 | //\r |
| | 1019 | // To check if we can signal some snd token in this socket\r |
| | 1020 | //\r |
| | 1021 | while (Count > 0) {\r |
| | 1022 | SockToken = NET_LIST_HEAD (\r |
| | 1023 | &(Sock->ProcessingSndTokenList),\r |
| | 1024 | SOCK_TOKEN,\r |
| | 1025 | TokenList\r |
| | 1026 | );\r |
| | 1027 | \r |
| | 1028 | SndToken = SockToken->Token;\r |
| | 1029 | \r |
| | 1030 | if (SockToken->RemainDataLen <= Count) {\r |
| | 1031 | \r |
| | 1032 | RemoveEntryList (&(SockToken->TokenList));\r |
| | 1033 | SIGNAL_TOKEN (SndToken, EFI_SUCCESS);\r |
| | 1034 | Count -= SockToken->RemainDataLen;\r |
| | 1035 | gBS->FreePool (SockToken);\r |
| | 1036 | } else {\r |
| | 1037 | \r |
| | 1038 | SockToken->RemainDataLen -= Count;\r |
| | 1039 | Count = 0;\r |
| | 1040 | }\r |
| | 1041 | }\r |
| | 1042 | \r |
| | 1043 | //\r |
| | 1044 | // to judge if we can process some send token in\r |
| | 1045 | // Sock->SndTokenList, if so process those send token\r |
| | 1046 | //\r |
| | 1047 | SockProcessSndToken (Sock);\r |
| | 1048 | return ;\r |
| | 1049 | }\r |
| | 1050 | \r |
| | 1051 | \r |
| | 1052 | /**\r |
| | 1053 | Called by the low layer protocol to copy some data in socket send\r |
| | 1054 | buffer starting from the specific offset to a buffer provided by\r |
| | 1055 | the caller.\r |
| | 1056 | \r |
| | 1057 | @param Sock Pointer to the socket.\r |
| | 1058 | @param Offset The start point of the data to be copied.\r |
| | 1059 | @param Len The length of the data to be copied.\r |
| | 1060 | @param Dest Pointer to the destination to copy the data.\r |
| | 1061 | \r |
| | 1062 | @return The data size copied.\r |
| | 1063 | \r |
| | 1064 | **/\r |
| | 1065 | UINT32\r |
| | 1066 | SockGetDataToSend (\r |
| | 1067 | IN SOCKET *Sock,\r |
| | 1068 | IN UINT32 Offset,\r |
| | 1069 | IN UINT32 Len,\r |
| | 1070 | IN UINT8 *Dest\r |
| | 1071 | )\r |
| | 1072 | {\r |
| | 1073 | ASSERT ((Sock != NULL) && SOCK_STREAM == Sock->Type);\r |
| | 1074 | \r |
| | 1075 | return NetbufQueCopy (\r |
| | 1076 | Sock->SndBuffer.DataQueue,\r |
| | 1077 | Offset,\r |
| | 1078 | Len,\r |
| | 1079 | Dest\r |
| | 1080 | );\r |
| | 1081 | }\r |
| | 1082 | \r |
| | 1083 | \r |
| | 1084 | /**\r |
| | 1085 | Called by the low layer protocol to deliver received data to socket layer; \r |
| | 1086 | This function will append the data to the socket receive buffer, set ther \r |
| | 1087 | urgent data length and then check if any receive token can be signaled.\r |
| | 1088 | \r |
| | 1089 | @param Sock Pointer to the socket.\r |
| | 1090 | @param NetBuffer Pointer to the buffer that contains the received\r |
| | 1091 | data.\r |
| | 1092 | @param UrgLen The length of the urgent data in the received data.\r |
| | 1093 | \r |
| | 1094 | **/\r |
| | 1095 | VOID\r |
| | 1096 | SockDataRcvd (\r |
| | 1097 | IN SOCKET *Sock,\r |
| | 1098 | IN NET_BUF *NetBuffer,\r |
| | 1099 | IN UINT32 UrgLen\r |
| | 1100 | )\r |
| | 1101 | {\r |
| | 1102 | ASSERT ((Sock != NULL) && (Sock->RcvBuffer.DataQueue != NULL) &&\r |
| | 1103 | UrgLen <= NetBuffer->TotalSize);\r |
| | 1104 | \r |
| | 1105 | NET_GET_REF (NetBuffer);\r |
| | 1106 | \r |
| | 1107 | ((TCP_RSV_DATA *) (NetBuffer->ProtoData))->UrgLen = UrgLen;\r |
| | 1108 | \r |
| | 1109 | NetbufQueAppend (Sock->RcvBuffer.DataQueue, NetBuffer);\r |
| | 1110 | \r |
| | 1111 | SockWakeRcvToken (Sock);\r |
| | 1112 | return ;\r |
| | 1113 | }\r |
| | 1114 | \r |
| | 1115 | \r |
| | 1116 | /**\r |
| | 1117 | Get the length of the free space of the specific socket buffer.\r |
| | 1118 | \r |
| | 1119 | @param Sock Pointer to the socket.\r |
| | 1120 | @param Which Flag to indicate which socket buffer to check,\r |
| | 1121 | either send buffer or receive buffer.\r |
| | 1122 | \r |
| | 1123 | @return The length of the free space, in bytes.\r |
| | 1124 | \r |
| | 1125 | **/\r |
| | 1126 | UINT32\r |
| | 1127 | SockGetFreeSpace (\r |
| | 1128 | IN SOCKET *Sock,\r |
| | 1129 | IN UINT32 Which\r |
| | 1130 | )\r |
| | 1131 | {\r |
| | 1132 | UINT32 BufferCC;\r |
| | 1133 | SOCK_BUFFER *SockBuffer;\r |
| | 1134 | \r |
| | 1135 | ASSERT ((Sock != NULL) && ((SOCK_SND_BUF == Which) || (SOCK_RCV_BUF == Which)));\r |
| | 1136 | \r |
| | 1137 | if (SOCK_SND_BUF == Which) {\r |
| | 1138 | SockBuffer = &(Sock->SndBuffer);\r |
| | 1139 | } else {\r |
| | 1140 | SockBuffer = &(Sock->RcvBuffer);\r |
| | 1141 | }\r |
| | 1142 | \r |
| | 1143 | BufferCC = (SockBuffer->DataQueue)->BufSize;\r |
| | 1144 | \r |
| | 1145 | if (BufferCC >= SockBuffer->HighWater) {\r |
| | 1146 | \r |
| | 1147 | return 0;\r |
| | 1148 | }\r |
| | 1149 | \r |
| | 1150 | return SockBuffer->HighWater - BufferCC;\r |
| | 1151 | }\r |
| | 1152 | \r |
| | 1153 | \r |
| | 1154 | /**\r |
| | 1155 | Signal the receive token with the specific error or\r |
| | 1156 | set socket error code after error is received.\r |
| | 1157 | \r |
| | 1158 | @param Sock Pointer to the socket.\r |
| | 1159 | @param Error The error code received.\r |
| | 1160 | \r |
| | 1161 | **/\r |
| | 1162 | VOID\r |
| | 1163 | SockRcvdErr (\r |
| | 1164 | IN SOCKET *Sock,\r |
| | 1165 | IN EFI_STATUS Error\r |
| | 1166 | )\r |
| | 1167 | {\r |
| | 1168 | SOCK_TOKEN *SockToken;\r |
| | 1169 | \r |
| | 1170 | if (!IsListEmpty (&Sock->RcvTokenList)) {\r |
| | 1171 | \r |
| | 1172 | SockToken = NET_LIST_HEAD (\r |
| | 1173 | &Sock->RcvTokenList,\r |
| | 1174 | SOCK_TOKEN,\r |
| | 1175 | TokenList\r |
| | 1176 | );\r |
| | 1177 | \r |
| | 1178 | RemoveEntryList (&SockToken->TokenList);\r |
| | 1179 | \r |
| | 1180 | SIGNAL_TOKEN (SockToken->Token, Error);\r |
| | 1181 | \r |
| | 1182 | gBS->FreePool (SockToken);\r |
| | 1183 | } else {\r |
| | 1184 | \r |
| | 1185 | SOCK_ERROR (Sock, Error);\r |
| | 1186 | }\r |
| | 1187 | }\r |
| | 1188 | \r |
| | 1189 | \r |
| | 1190 | /**\r |
| | 1191 | Called by the low layer protocol to indicate that there\r |
| | 1192 | will be no more data from the communication peer; This\r |
| | 1193 | function set the socket's state to SO_NO_MORE_DATA and\r |
| | 1194 | signal all queued IO tokens with the error status\r |
| | 1195 | EFI_CONNECTION_FIN.\r |
| | 1196 | \r |
| | 1197 | @param Sock Pointer to the socket.\r |
| | 1198 | \r |
| | 1199 | **/\r |
| | 1200 | VOID\r |
| | 1201 | SockNoMoreData (\r |
| | 1202 | IN SOCKET *Sock\r |
| | 1203 | )\r |
| | 1204 | {\r |
| | 1205 | EFI_STATUS Err;\r |
| | 1206 | \r |
| | 1207 | SOCK_NO_MORE_DATA (Sock);\r |
| | 1208 | \r |
| | 1209 | if (!IsListEmpty (&Sock->RcvTokenList)) {\r |
| | 1210 | \r |
| | 1211 | ASSERT (0 == GET_RCV_DATASIZE (Sock));\r |
| | 1212 | \r |
| | 1213 | Err = Sock->SockError;\r |
| | 1214 | \r |
| | 1215 | SOCK_ERROR (Sock, EFI_CONNECTION_FIN);\r |
| | 1216 | \r |
| | 1217 | SockFlushPendingToken (Sock, &Sock->RcvTokenList);\r |
| | 1218 | \r |
| | 1219 | SOCK_ERROR (Sock, Err);\r |
| | 1220 | \r |
| | 1221 | }\r |
| | 1222 | \r |
| | 1223 | }\r |
| | 1224 | \r |
| | 1225 | \r |
| | 1226 | /**\r |
| | 1227 | Get the first buffer block in the specific socket buffer.\r |
| | 1228 | \r |
| | 1229 | @param Sockbuf Pointer to the socket buffer.\r |
| | 1230 | \r |
| | 1231 | @return Pointer to the first buffer in the queue. NULL if the queue is empty.\r |
| | 1232 | \r |
| | 1233 | **/\r |
| | 1234 | NET_BUF *\r |
| | 1235 | SockBufFirst (\r |
| | 1236 | IN SOCK_BUFFER *Sockbuf\r |
| | 1237 | )\r |
| | 1238 | {\r |
| | 1239 | LIST_ENTRY *NetbufList;\r |
| | 1240 | \r |
| | 1241 | NetbufList = &(Sockbuf->DataQueue->BufList);\r |
| | 1242 | \r |
| | 1243 | if (IsListEmpty (NetbufList)) {\r |
| | 1244 | return NULL;\r |
| | 1245 | }\r |
| | 1246 | \r |
| | 1247 | return NET_LIST_HEAD (NetbufList, NET_BUF, List);\r |
| | 1248 | }\r |
| | 1249 | \r |
| | 1250 | \r |
| | 1251 | /**\r |
| | 1252 | Get the next buffer block in the specific socket buffer.\r |
| | 1253 | \r |
| | 1254 | @param Sockbuf Pointer to the socket buffer.\r |
| | 1255 | @param SockEntry Pointer to the buffer block prior to the required\r |
| | 1256 | one.\r |
| | 1257 | \r |
| | 1258 | @return Pointer to the buffer block next to SockEntry. NULL if SockEntry is \r |
| | 1259 | the tail or head entry.\r |
| | 1260 | \r |
| | 1261 | **/\r |
| | 1262 | NET_BUF *\r |
| | 1263 | SockBufNext (\r |
| | 1264 | IN SOCK_BUFFER *Sockbuf,\r |
| | 1265 | IN NET_BUF *SockEntry\r |
| | 1266 | )\r |
| | 1267 | {\r |
| | 1268 | LIST_ENTRY *NetbufList;\r |
| | 1269 | \r |
| | 1270 | NetbufList = &(Sockbuf->DataQueue->BufList);\r |
| | 1271 | \r |
| | 1272 | if ((SockEntry->List.ForwardLink == NetbufList) ||\r |
| | 1273 | (SockEntry->List.BackLink == &SockEntry->List) ||\r |
| | 1274 | (SockEntry->List.ForwardLink == &SockEntry->List)) {\r |
| | 1275 | \r |
| | 1276 | return NULL;\r |
| | 1277 | }\r |
| | 1278 | \r |
| | 1279 | return NET_LIST_USER_STRUCT (SockEntry->List.ForwardLink, NET_BUF, List);\r |
| | 1280 | }\r |
projects / mirror_edk2.git / blame_incremental