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8a67d61d | 1 | /** @file\r |
dab714aa | 2 | Implementation of the Socket.\r |
8a67d61d | 3 | \r |
75dce340 | 4 | Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 5 | This program and the accompanying materials\r |
8a67d61d | 6 | are licensed and made available under the terms and conditions of the BSD License\r |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
dfc1f033 | 8 | http://opensource.org/licenses/bsd-license.php<BR>\r |
8a67d61d | 9 | \r |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
8a67d61d | 13 | **/\r |
14 | \r | |
15 | #include "SockImpl.h"\r | |
16 | \r | |
120db52c | 17 | /**\r |
18 | Get the length of the data that can be retrieved from the socket\r | |
19 | receive buffer.\r | |
20 | \r | |
21 | @param SockBuffer Pointer to the socket receive buffer.\r | |
22 | @param IsUrg Pointer to a BOOLEAN variable. If TRUE the data is\r | |
23 | OOB.\r | |
24 | @param BufLen The maximum length of the data buffer to store the\r | |
25 | received data in socket layer.\r | |
26 | \r | |
27 | @return The length of the data can be retreived.\r | |
28 | \r | |
29 | **/\r | |
8a67d61d | 30 | UINT32\r |
31 | SockTcpDataToRcv (\r | |
dfc1f033 | 32 | IN SOCK_BUFFER *SockBuffer,\r |
33 | OUT BOOLEAN *IsUrg,\r | |
34 | IN UINT32 BufLen\r | |
8a67d61d | 35 | );\r |
120db52c | 36 | \r |
37 | /**\r | |
38 | Process the send token.\r | |
8a67d61d | 39 | \r |
120db52c | 40 | @param Sock Pointer to the socket.\r |
41 | \r | |
42 | **/\r | |
8a67d61d | 43 | VOID\r |
44 | SockProcessSndToken (\r | |
77f00155 | 45 | IN OUT SOCKET *Sock\r |
8a67d61d | 46 | );\r |
47 | \r | |
120db52c | 48 | /**\r |
dfc1f033 | 49 | Supporting function for both SockImpl and SockInterface.\r |
120db52c | 50 | \r |
dfc1f033 | 51 | @param Event The Event this notify function registered to, ignored.\r |
52 | \r | |
120db52c | 53 | **/\r |
8a67d61d | 54 | VOID\r |
e798cd87 | 55 | EFIAPI\r |
8a67d61d | 56 | SockFreeFoo (\r |
57 | IN EFI_EVENT Event\r | |
58 | )\r | |
59 | {\r | |
60 | return ;\r | |
61 | }\r | |
62 | \r | |
63 | \r | |
64 | /**\r | |
65 | Get the length of the data that can be retrieved from the socket\r | |
66 | receive buffer.\r | |
67 | \r | |
68 | @param SockBuffer Pointer to the socket receive buffer.\r | |
69 | @param IsUrg Pointer to a BOOLEAN variable. If TRUE the data is\r | |
70 | OOB.\r | |
71 | @param BufLen The maximum length of the data buffer to store the\r | |
72 | received data in socket layer.\r | |
73 | \r | |
74 | @return The length of the data can be retreived.\r | |
75 | \r | |
76 | **/\r | |
8a67d61d | 77 | UINT32\r |
78 | SockTcpDataToRcv (\r | |
120db52c | 79 | IN SOCK_BUFFER *SockBuffer,\r |
80 | OUT BOOLEAN *IsUrg,\r | |
81 | IN UINT32 BufLen\r | |
8a67d61d | 82 | )\r |
83 | {\r | |
84 | NET_BUF *RcvBufEntry;\r | |
85 | UINT32 DataLen;\r | |
86 | TCP_RSV_DATA *TcpRsvData;\r | |
87 | BOOLEAN Urg;\r | |
120db52c | 88 | ASSERT ((SockBuffer != NULL) && (IsUrg != NULL) && (BufLen > 0));\r |
8a67d61d | 89 | \r |
90 | RcvBufEntry = SockBufFirst (SockBuffer);\r | |
120db52c | 91 | ASSERT (RcvBufEntry != NULL);\r |
8a67d61d | 92 | \r |
93 | TcpRsvData = (TCP_RSV_DATA *) RcvBufEntry->ProtoData;\r | |
94 | \r | |
4eb65aff | 95 | *IsUrg = (BOOLEAN) ((TcpRsvData->UrgLen > 0) ? TRUE : FALSE);\r |
8a67d61d | 96 | \r |
97 | if (*IsUrg && TcpRsvData->UrgLen < RcvBufEntry->TotalSize) {\r | |
98 | \r | |
36ee91ca | 99 | DataLen = MIN (TcpRsvData->UrgLen, BufLen);\r |
8a67d61d | 100 | \r |
101 | if (DataLen < TcpRsvData->UrgLen) {\r | |
102 | TcpRsvData->UrgLen = TcpRsvData->UrgLen - DataLen;\r | |
103 | } else {\r | |
104 | TcpRsvData->UrgLen = 0;\r | |
105 | }\r | |
106 | \r | |
107 | return DataLen;\r | |
108 | \r | |
109 | }\r | |
110 | \r | |
111 | DataLen = RcvBufEntry->TotalSize;\r | |
112 | \r | |
113 | RcvBufEntry = SockBufNext (SockBuffer, RcvBufEntry);\r | |
114 | \r | |
115 | while ((BufLen > DataLen) && (RcvBufEntry != NULL)) {\r | |
116 | \r | |
117 | TcpRsvData = (TCP_RSV_DATA *) RcvBufEntry->ProtoData;\r | |
118 | \r | |
4eb65aff | 119 | Urg = (BOOLEAN) ((TcpRsvData->UrgLen > 0) ? TRUE : FALSE);\r |
8a67d61d | 120 | \r |
121 | if (*IsUrg != Urg) {\r | |
122 | break;\r | |
123 | }\r | |
124 | \r | |
125 | if (*IsUrg && TcpRsvData->UrgLen < RcvBufEntry->TotalSize) {\r | |
126 | \r | |
127 | if (TcpRsvData->UrgLen + DataLen < BufLen) {\r | |
128 | TcpRsvData->UrgLen = 0;\r | |
129 | } else {\r | |
130 | TcpRsvData->UrgLen = TcpRsvData->UrgLen - (BufLen - DataLen);\r | |
131 | }\r | |
132 | \r | |
36ee91ca | 133 | return MIN (TcpRsvData->UrgLen + DataLen, BufLen);\r |
8a67d61d | 134 | \r |
135 | }\r | |
136 | \r | |
137 | DataLen += RcvBufEntry->TotalSize;\r | |
138 | \r | |
139 | RcvBufEntry = SockBufNext (SockBuffer, RcvBufEntry);\r | |
140 | }\r | |
141 | \r | |
36ee91ca | 142 | DataLen = MIN (BufLen, DataLen);\r |
8a67d61d | 143 | return DataLen;\r |
144 | }\r | |
145 | \r | |
146 | \r | |
147 | /**\r | |
148 | Copy data from socket buffer to application provided receive buffer.\r | |
149 | \r | |
150 | @param Sock Pointer to the socket.\r | |
151 | @param TcpRxData Pointer to the application provided receive buffer.\r | |
152 | @param RcvdBytes The maximum length of the data can be copied.\r | |
77f00155 | 153 | @param IsOOB If TURE the data is OOB, FALSE the data is normal.\r |
8a67d61d | 154 | \r |
8a67d61d | 155 | **/\r |
156 | VOID\r | |
157 | SockSetTcpRxData (\r | |
158 | IN SOCKET *Sock,\r | |
159 | IN VOID *TcpRxData,\r | |
160 | IN UINT32 RcvdBytes,\r | |
161 | IN BOOLEAN IsOOB\r | |
162 | )\r | |
163 | {\r | |
164 | UINT32 Index;\r | |
165 | UINT32 CopyBytes;\r | |
166 | UINT32 OffSet;\r | |
167 | EFI_TCP4_RECEIVE_DATA *RxData;\r | |
168 | EFI_TCP4_FRAGMENT_DATA *Fragment;\r | |
169 | \r | |
170 | RxData = (EFI_TCP4_RECEIVE_DATA *) TcpRxData;\r | |
171 | \r | |
172 | OffSet = 0;\r | |
173 | \r | |
174 | ASSERT (RxData->DataLength >= RcvdBytes);\r | |
175 | \r | |
176 | RxData->DataLength = RcvdBytes;\r | |
177 | RxData->UrgentFlag = IsOOB;\r | |
178 | \r | |
179 | for (Index = 0; (Index < RxData->FragmentCount) && (RcvdBytes > 0); Index++) {\r | |
180 | \r | |
181 | Fragment = &RxData->FragmentTable[Index];\r | |
36ee91ca | 182 | CopyBytes = MIN ((UINT32) (Fragment->FragmentLength), RcvdBytes);\r |
8a67d61d | 183 | \r |
184 | NetbufQueCopy (\r | |
185 | Sock->RcvBuffer.DataQueue,\r | |
186 | OffSet,\r | |
187 | CopyBytes,\r | |
188 | Fragment->FragmentBuffer\r | |
189 | );\r | |
190 | \r | |
191 | Fragment->FragmentLength = CopyBytes;\r | |
192 | RcvdBytes -= CopyBytes;\r | |
193 | OffSet += CopyBytes;\r | |
194 | }\r | |
195 | }\r | |
196 | \r | |
197 | \r | |
198 | /**\r | |
199 | Get received data from the socket layer to the receive token.\r | |
200 | \r | |
201 | @param Sock Pointer to the socket.\r | |
202 | @param RcvToken Pointer to the application provided receive token.\r | |
203 | \r | |
204 | @return The length of data received in this token.\r | |
205 | \r | |
206 | **/\r | |
207 | UINT32\r | |
208 | SockProcessRcvToken (\r | |
77f00155 | 209 | IN SOCKET *Sock,\r |
210 | IN OUT SOCK_IO_TOKEN *RcvToken\r | |
8a67d61d | 211 | )\r |
212 | {\r | |
213 | UINT32 TokenRcvdBytes;\r | |
214 | EFI_TCP4_RECEIVE_DATA *RxData;\r | |
215 | BOOLEAN IsUrg;\r | |
216 | \r | |
120db52c | 217 | ASSERT (Sock != NULL);\r |
8a67d61d | 218 | \r |
f6b7393c | 219 | ASSERT (SockStream == Sock->Type);\r |
8a67d61d | 220 | \r |
221 | RxData = RcvToken->Packet.RxData;\r | |
222 | \r | |
223 | TokenRcvdBytes = SockTcpDataToRcv (\r | |
224 | &Sock->RcvBuffer,\r | |
225 | &IsUrg,\r | |
4eb65aff | 226 | (UINT32) RxData->DataLength\r |
8a67d61d | 227 | );\r |
228 | \r | |
229 | //\r | |
230 | // Copy data from RcvBuffer of socket to user\r | |
231 | // provided RxData and set the fields in TCP RxData\r | |
232 | //\r | |
233 | SockSetTcpRxData (Sock, RxData, TokenRcvdBytes, IsUrg);\r | |
234 | \r | |
dfc1f033 | 235 | NetbufQueTrim (Sock->RcvBuffer.DataQueue, TokenRcvdBytes);\r |
8a67d61d | 236 | SIGNAL_TOKEN (&(RcvToken->Token), EFI_SUCCESS);\r |
237 | \r | |
238 | return TokenRcvdBytes;\r | |
239 | }\r | |
240 | \r | |
241 | \r | |
242 | /**\r | |
243 | Process the TCP send data, buffer the tcp txdata and append\r | |
244 | the buffer to socket send buffer,then try to send it.\r | |
245 | \r | |
246 | @param Sock Pointer to the socket.\r | |
77f00155 | 247 | @param TcpTxData Pointer to the application provided send buffer.\r |
8a67d61d | 248 | \r |
249 | @retval EFI_SUCCESS The operation is completed successfully.\r | |
250 | @retval EFI_OUT_OF_RESOURCES Failed due to resource limit.\r | |
251 | \r | |
252 | **/\r | |
253 | EFI_STATUS\r | |
254 | SockProcessTcpSndData (\r | |
255 | IN SOCKET *Sock,\r | |
256 | IN VOID *TcpTxData\r | |
257 | )\r | |
258 | {\r | |
259 | NET_BUF *SndData;\r | |
260 | EFI_STATUS Status;\r | |
261 | EFI_TCP4_TRANSMIT_DATA *TxData;\r | |
262 | \r | |
263 | TxData = (EFI_TCP4_TRANSMIT_DATA *) TcpTxData;\r | |
264 | \r | |
265 | //\r | |
266 | // transform this TxData into a NET_BUFFER\r | |
267 | // and insert it into Sock->SndBuffer\r | |
268 | //\r | |
269 | SndData = NetbufFromExt (\r | |
270 | (NET_FRAGMENT *) TxData->FragmentTable,\r | |
4eb65aff | 271 | (UINT32) TxData->FragmentCount,\r |
8a67d61d | 272 | 0,\r |
273 | 0,\r | |
274 | SockFreeFoo,\r | |
275 | NULL\r | |
276 | );\r | |
277 | \r | |
278 | if (NULL == SndData) {\r | |
e48e37fc | 279 | DEBUG ((EFI_D_ERROR, "SockKProcessSndData: Failed to"\r |
8a67d61d | 280 | " call NetBufferFromExt\n"));\r |
281 | \r | |
282 | return EFI_OUT_OF_RESOURCES;\r | |
283 | }\r | |
284 | \r | |
285 | NetbufQueAppend (Sock->SndBuffer.DataQueue, SndData);\r | |
286 | \r | |
287 | //\r | |
288 | // notify the low layer protocol to handle this send token\r | |
289 | //\r | |
290 | if (TxData->Urgent) {\r | |
291 | Status = Sock->ProtoHandler (Sock, SOCK_SNDURG, NULL);\r | |
292 | \r | |
293 | if (EFI_ERROR (Status)) {\r | |
294 | return Status;\r | |
295 | }\r | |
296 | }\r | |
297 | \r | |
298 | if (TxData->Push) {\r | |
299 | Status = Sock->ProtoHandler (Sock, SOCK_SNDPUSH, NULL);\r | |
300 | \r | |
301 | if (EFI_ERROR (Status)) {\r | |
302 | return Status;\r | |
303 | }\r | |
304 | }\r | |
305 | \r | |
306 | //\r | |
307 | // low layer protocol should really handle the sending\r | |
308 | // process when catching SOCK_SND request\r | |
309 | //\r | |
310 | Status = Sock->ProtoHandler (Sock, SOCK_SND, NULL);\r | |
311 | \r | |
312 | if (EFI_ERROR (Status)) {\r | |
313 | return Status;\r | |
314 | }\r | |
315 | \r | |
316 | return EFI_SUCCESS;\r | |
317 | }\r | |
318 | \r | |
319 | \r | |
320 | /**\r | |
321 | Flush the tokens in the specific token list.\r | |
322 | \r | |
323 | @param Sock Pointer to the socket.\r | |
324 | @param PendingTokenList Pointer to the token list to be flushed.\r | |
120db52c | 325 | \r |
8a67d61d | 326 | **/\r |
8a67d61d | 327 | VOID\r |
328 | SockFlushPendingToken (\r | |
329 | IN SOCKET *Sock,\r | |
e48e37fc | 330 | IN LIST_ENTRY *PendingTokenList\r |
8a67d61d | 331 | )\r |
332 | {\r | |
333 | SOCK_TOKEN *SockToken;\r | |
334 | SOCK_COMPLETION_TOKEN *Token;\r | |
335 | \r | |
120db52c | 336 | ASSERT ((Sock != NULL) && (PendingTokenList != NULL));\r |
8a67d61d | 337 | \r |
e48e37fc | 338 | while (!IsListEmpty (PendingTokenList)) {\r |
8a67d61d | 339 | SockToken = NET_LIST_HEAD (\r |
340 | PendingTokenList,\r | |
341 | SOCK_TOKEN,\r | |
342 | TokenList\r | |
343 | );\r | |
344 | \r | |
345 | Token = SockToken->Token;\r | |
346 | SIGNAL_TOKEN (Token, Sock->SockError);\r | |
347 | \r | |
e48e37fc | 348 | RemoveEntryList (&(SockToken->TokenList));\r |
766c7483 | 349 | FreePool (SockToken);\r |
8a67d61d | 350 | }\r |
351 | }\r | |
352 | \r | |
353 | \r | |
354 | /**\r | |
120db52c | 355 | Wake up the connection token while the connection is successfully established, \r |
356 | then try to process any pending send token.\r | |
8a67d61d | 357 | \r |
358 | @param Sock Pointer to the socket.\r | |
359 | \r | |
8a67d61d | 360 | **/\r |
8a67d61d | 361 | VOID\r |
362 | SockWakeConnToken (\r | |
77f00155 | 363 | IN OUT SOCKET *Sock\r |
8a67d61d | 364 | )\r |
365 | {\r | |
366 | ASSERT (Sock->ConnectionToken != NULL);\r | |
367 | \r | |
368 | SIGNAL_TOKEN (Sock->ConnectionToken, EFI_SUCCESS);\r | |
369 | Sock->ConnectionToken = NULL;\r | |
370 | \r | |
371 | //\r | |
372 | // check to see if some pending send token existed?\r | |
373 | //\r | |
374 | SockProcessSndToken (Sock);\r | |
375 | return ;\r | |
376 | }\r | |
377 | \r | |
378 | \r | |
379 | /**\r | |
120db52c | 380 | Wake up the listen token while the connection is established successfully.\r |
8a67d61d | 381 | \r |
382 | @param Sock Pointer to the socket.\r | |
383 | \r | |
8a67d61d | 384 | **/\r |
8a67d61d | 385 | VOID\r |
386 | SockWakeListenToken (\r | |
77f00155 | 387 | IN OUT SOCKET *Sock\r |
8a67d61d | 388 | )\r |
389 | {\r | |
390 | SOCKET *Parent;\r | |
391 | SOCK_TOKEN *SockToken;\r | |
392 | EFI_TCP4_LISTEN_TOKEN *ListenToken;\r | |
393 | \r | |
394 | Parent = Sock->Parent;\r | |
395 | \r | |
120db52c | 396 | ASSERT ((Parent != NULL) && SOCK_IS_LISTENING (Parent) && SOCK_IS_CONNECTED (Sock));\r |
8a67d61d | 397 | \r |
e48e37fc | 398 | if (!IsListEmpty (&Parent->ListenTokenList)) {\r |
8a67d61d | 399 | SockToken = NET_LIST_HEAD (\r |
400 | &Parent->ListenTokenList,\r | |
401 | SOCK_TOKEN,\r | |
402 | TokenList\r | |
403 | );\r | |
404 | \r | |
405 | ListenToken = (EFI_TCP4_LISTEN_TOKEN *) SockToken->Token;\r | |
406 | ListenToken->NewChildHandle = Sock->SockHandle;\r | |
407 | \r | |
408 | SIGNAL_TOKEN (&(ListenToken->CompletionToken), EFI_SUCCESS);\r | |
409 | \r | |
e48e37fc | 410 | RemoveEntryList (&SockToken->TokenList);\r |
766c7483 | 411 | FreePool (SockToken);\r |
8a67d61d | 412 | \r |
e48e37fc | 413 | RemoveEntryList (&Sock->ConnectionList);\r |
8a67d61d | 414 | \r |
415 | Parent->ConnCnt--;\r | |
dfc1f033 | 416 | DEBUG ((EFI_D_INFO, "SockWakeListenToken: accept a socket, now conncnt is %d", Parent->ConnCnt));\r |
8a67d61d | 417 | \r |
418 | Sock->Parent = NULL;\r | |
419 | }\r | |
420 | }\r | |
421 | \r | |
422 | \r | |
423 | /**\r | |
424 | Wake up the receive token while some data is received.\r | |
425 | \r | |
426 | @param Sock Pointer to the socket.\r | |
427 | \r | |
8a67d61d | 428 | **/\r |
8a67d61d | 429 | VOID\r |
430 | SockWakeRcvToken (\r | |
431 | IN SOCKET *Sock\r | |
432 | )\r | |
433 | {\r | |
434 | UINT32 RcvdBytes;\r | |
435 | UINT32 TokenRcvdBytes;\r | |
436 | SOCK_TOKEN *SockToken;\r | |
437 | SOCK_IO_TOKEN *RcvToken;\r | |
438 | \r | |
120db52c | 439 | ASSERT (Sock->RcvBuffer.DataQueue != NULL);\r |
8a67d61d | 440 | \r |
441 | RcvdBytes = (Sock->RcvBuffer.DataQueue)->BufSize;\r | |
442 | \r | |
443 | ASSERT (RcvdBytes > 0);\r | |
444 | \r | |
e48e37fc | 445 | while (RcvdBytes > 0 && !IsListEmpty (&Sock->RcvTokenList)) {\r |
8a67d61d | 446 | \r |
447 | SockToken = NET_LIST_HEAD (\r | |
448 | &Sock->RcvTokenList,\r | |
449 | SOCK_TOKEN,\r | |
450 | TokenList\r | |
451 | );\r | |
452 | \r | |
453 | RcvToken = (SOCK_IO_TOKEN *) SockToken->Token;\r | |
454 | TokenRcvdBytes = SockProcessRcvToken (Sock, RcvToken);\r | |
455 | \r | |
456 | if (0 == TokenRcvdBytes) {\r | |
457 | return ;\r | |
458 | }\r | |
459 | \r | |
e48e37fc | 460 | RemoveEntryList (&(SockToken->TokenList));\r |
766c7483 | 461 | FreePool (SockToken);\r |
8a67d61d | 462 | RcvdBytes -= TokenRcvdBytes;\r |
463 | }\r | |
464 | }\r | |
465 | \r | |
466 | \r | |
467 | /**\r | |
468 | Process the send token.\r | |
469 | \r | |
470 | @param Sock Pointer to the socket.\r | |
471 | \r | |
8a67d61d | 472 | **/\r |
8a67d61d | 473 | VOID\r |
474 | SockProcessSndToken (\r | |
77f00155 | 475 | IN OUT SOCKET *Sock\r |
8a67d61d | 476 | )\r |
477 | {\r | |
478 | UINT32 FreeSpace;\r | |
479 | SOCK_TOKEN *SockToken;\r | |
480 | UINT32 DataLen;\r | |
481 | SOCK_IO_TOKEN *SndToken;\r | |
482 | EFI_TCP4_TRANSMIT_DATA *TxData;\r | |
483 | EFI_STATUS Status;\r | |
484 | \r | |
f6b7393c | 485 | ASSERT ((Sock != NULL) && (SockStream == Sock->Type));\r |
8a67d61d | 486 | \r |
487 | FreeSpace = SockGetFreeSpace (Sock, SOCK_SND_BUF);\r | |
488 | \r | |
489 | //\r | |
490 | // to determine if process a send token using\r | |
491 | // socket layer flow control policy\r | |
492 | //\r | |
493 | while ((FreeSpace >= Sock->SndBuffer.LowWater) &&\r | |
e48e37fc | 494 | !IsListEmpty (&Sock->SndTokenList)) {\r |
8a67d61d | 495 | \r |
496 | SockToken = NET_LIST_HEAD (\r | |
497 | &(Sock->SndTokenList),\r | |
498 | SOCK_TOKEN,\r | |
499 | TokenList\r | |
500 | );\r | |
501 | \r | |
502 | //\r | |
503 | // process this token\r | |
504 | //\r | |
e48e37fc | 505 | RemoveEntryList (&(SockToken->TokenList));\r |
506 | InsertTailList (\r | |
8a67d61d | 507 | &(Sock->ProcessingSndTokenList),\r |
508 | &(SockToken->TokenList)\r | |
509 | );\r | |
510 | \r | |
511 | //\r | |
512 | // Proceess it in the light of SockType\r | |
513 | //\r | |
514 | SndToken = (SOCK_IO_TOKEN *) SockToken->Token;\r | |
515 | TxData = SndToken->Packet.TxData;\r | |
516 | \r | |
4eb65aff | 517 | DataLen = (UINT32) TxData->DataLength;\r |
8a67d61d | 518 | Status = SockProcessTcpSndData (Sock, TxData);\r |
519 | \r | |
520 | if (EFI_ERROR (Status)) {\r | |
521 | goto OnError;\r | |
522 | }\r | |
523 | \r | |
524 | if (DataLen >= FreeSpace) {\r | |
525 | FreeSpace = 0;\r | |
526 | \r | |
527 | } else {\r | |
528 | FreeSpace -= DataLen;\r | |
529 | \r | |
530 | }\r | |
531 | }\r | |
532 | \r | |
533 | return ;\r | |
534 | \r | |
535 | OnError:\r | |
536 | \r | |
e48e37fc | 537 | RemoveEntryList (&SockToken->TokenList);\r |
8a67d61d | 538 | SIGNAL_TOKEN (SockToken->Token, Status);\r |
766c7483 | 539 | FreePool (SockToken);\r |
8a67d61d | 540 | }\r |
541 | \r | |
542 | \r | |
543 | /**\r | |
544 | Create a socket with initial data SockInitData.\r | |
545 | \r | |
546 | @param SockInitData Pointer to the initial data of the socket.\r | |
547 | \r | |
276dcc1b | 548 | @return Pointer to the newly created socket, return NULL when exception occured.\r |
8a67d61d | 549 | \r |
550 | **/\r | |
551 | SOCKET *\r | |
552 | SockCreate (\r | |
553 | IN SOCK_INIT_DATA *SockInitData\r | |
554 | )\r | |
555 | {\r | |
556 | SOCKET *Sock;\r | |
557 | SOCKET *Parent;\r | |
558 | EFI_STATUS Status;\r | |
559 | \r | |
120db52c | 560 | ASSERT ((SockInitData != NULL) && (SockInitData->ProtoHandler != NULL));\r |
f6b7393c | 561 | ASSERT (SockInitData->Type == SockStream);\r |
120db52c | 562 | ASSERT ((SockInitData->ProtoData != NULL) && (SockInitData->DataSize <= PROTO_RESERVED_LEN));\r |
8a67d61d | 563 | \r |
564 | Parent = SockInitData->Parent;\r | |
565 | \r | |
85511ddf | 566 | if ((Parent != NULL) && (Parent->ConnCnt == Parent->BackLog)) {\r |
e48e37fc | 567 | DEBUG (\r |
568 | (EFI_D_ERROR,\r | |
569 | "SockCreate: Socket parent has "\r | |
8a67d61d | 570 | "reached its connection limit with %d ConnCnt and %d BackLog\n",\r |
571 | Parent->ConnCnt,\r | |
572 | Parent->BackLog)\r | |
573 | );\r | |
574 | \r | |
575 | return NULL;\r | |
576 | }\r | |
577 | \r | |
e48e37fc | 578 | Sock = AllocateZeroPool (sizeof (SOCKET));\r |
8a67d61d | 579 | if (NULL == Sock) {\r |
580 | \r | |
e48e37fc | 581 | DEBUG ((EFI_D_ERROR, "SockCreate: No resource to create a new socket\n"));\r |
8a67d61d | 582 | return NULL;\r |
583 | }\r | |
584 | \r | |
e48e37fc | 585 | InitializeListHead (&Sock->Link);\r |
586 | InitializeListHead (&Sock->ConnectionList);\r | |
587 | InitializeListHead (&Sock->ListenTokenList);\r | |
588 | InitializeListHead (&Sock->RcvTokenList);\r | |
589 | InitializeListHead (&Sock->SndTokenList);\r | |
590 | InitializeListHead (&Sock->ProcessingSndTokenList);\r | |
8a67d61d | 591 | \r |
e48e37fc | 592 | EfiInitializeLock (&(Sock->Lock), TPL_CALLBACK);\r |
8a67d61d | 593 | \r |
594 | Sock->SndBuffer.DataQueue = NetbufQueAlloc ();\r | |
595 | if (NULL == Sock->SndBuffer.DataQueue) {\r | |
e48e37fc | 596 | DEBUG ((EFI_D_ERROR, "SockCreate: No resource to allocate"\r |
8a67d61d | 597 | " SndBuffer for new socket\n"));\r |
598 | \r | |
599 | goto OnError;\r | |
600 | }\r | |
601 | \r | |
602 | Sock->RcvBuffer.DataQueue = NetbufQueAlloc ();\r | |
603 | if (NULL == Sock->RcvBuffer.DataQueue) {\r | |
e48e37fc | 604 | DEBUG ((EFI_D_ERROR, "SockCreate: No resource to allocate "\r |
8a67d61d | 605 | "RcvBuffer for new socket\n"));\r |
606 | \r | |
607 | goto OnError;\r | |
608 | }\r | |
609 | \r | |
610 | Sock->Signature = SOCK_SIGNATURE;\r | |
611 | \r | |
612 | Sock->Parent = Parent;\r | |
613 | Sock->BackLog = SockInitData->BackLog;\r | |
614 | Sock->ProtoHandler = SockInitData->ProtoHandler;\r | |
615 | Sock->SndBuffer.HighWater = SockInitData->SndBufferSize;\r | |
616 | Sock->RcvBuffer.HighWater = SockInitData->RcvBufferSize;\r | |
617 | Sock->Type = SockInitData->Type;\r | |
618 | Sock->DriverBinding = SockInitData->DriverBinding;\r | |
619 | Sock->State = SockInitData->State;\r | |
4f6e31e4 | 620 | Sock->CreateCallback = SockInitData->CreateCallback;\r |
621 | Sock->DestroyCallback = SockInitData->DestroyCallback;\r | |
622 | Sock->Context = SockInitData->Context;\r | |
8a67d61d | 623 | \r |
624 | Sock->SockError = EFI_ABORTED;\r | |
625 | Sock->SndBuffer.LowWater = SOCK_BUFF_LOW_WATER;\r | |
626 | Sock->RcvBuffer.LowWater = SOCK_BUFF_LOW_WATER;\r | |
627 | \r | |
628 | //\r | |
629 | // Install protocol on Sock->SockHandle\r | |
630 | //\r | |
e48e37fc | 631 | CopyMem (\r |
8a67d61d | 632 | &(Sock->NetProtocol.TcpProtocol),\r |
633 | SockInitData->Protocol,\r | |
634 | sizeof (EFI_TCP4_PROTOCOL)\r | |
635 | );\r | |
636 | \r | |
4f6e31e4 | 637 | //\r |
638 | // copy the protodata into socket\r | |
639 | //\r | |
e48e37fc | 640 | CopyMem (Sock->ProtoReserved, SockInitData->ProtoData, SockInitData->DataSize);\r |
4f6e31e4 | 641 | \r |
8a67d61d | 642 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
643 | &Sock->SockHandle,\r | |
644 | &gEfiTcp4ProtocolGuid,\r | |
645 | &(Sock->NetProtocol.TcpProtocol),\r | |
646 | NULL\r | |
647 | );\r | |
648 | \r | |
649 | if (EFI_ERROR (Status)) {\r | |
e48e37fc | 650 | DEBUG ((EFI_D_ERROR, "SockCreate: Install TCP protocol in "\r |
8a67d61d | 651 | "socket failed with %r\n", Status));\r |
652 | \r | |
653 | goto OnError;\r | |
654 | }\r | |
655 | \r | |
656 | if (Parent != NULL) {\r | |
657 | ASSERT (Parent->BackLog > 0);\r | |
658 | ASSERT (SOCK_IS_LISTENING (Parent));\r | |
659 | \r | |
660 | //\r | |
661 | // need to add it into Parent->ConnectionList\r | |
662 | // if the Parent->ConnCnt < Parent->BackLog\r | |
663 | //\r | |
664 | Parent->ConnCnt++;\r | |
665 | \r | |
e48e37fc | 666 | DEBUG (\r |
dfc1f033 | 667 | (EFI_D_INFO,\r |
e48e37fc | 668 | "SockCreate: Create a new socket and add to parent, now conncnt is %d\n",\r |
669 | Parent->ConnCnt)\r | |
670 | );\r | |
8a67d61d | 671 | \r |
e48e37fc | 672 | InsertTailList (&Parent->ConnectionList, &Sock->ConnectionList);\r |
8a67d61d | 673 | }\r |
674 | \r | |
4f6e31e4 | 675 | if (Sock->CreateCallback != NULL) {\r |
676 | Status = Sock->CreateCallback (Sock, Sock->Context);\r | |
677 | if (EFI_ERROR (Status)) {\r | |
678 | goto OnError;\r | |
679 | }\r | |
680 | }\r | |
681 | \r | |
8a67d61d | 682 | return Sock;\r |
683 | \r | |
684 | OnError:\r | |
8a67d61d | 685 | \r |
4f6e31e4 | 686 | if (Sock->SockHandle != NULL) {\r |
687 | gBS->UninstallMultipleProtocolInterfaces (\r | |
688 | Sock->SockHandle,\r | |
689 | &gEfiTcp4ProtocolGuid,\r | |
690 | &(Sock->NetProtocol.TcpProtocol),\r | |
691 | NULL\r | |
692 | );\r | |
693 | }\r | |
8a67d61d | 694 | \r |
4f6e31e4 | 695 | if (NULL != Sock->SndBuffer.DataQueue) {\r |
696 | NetbufQueFree (Sock->SndBuffer.DataQueue);\r | |
697 | }\r | |
8a67d61d | 698 | \r |
4f6e31e4 | 699 | if (NULL != Sock->RcvBuffer.DataQueue) {\r |
700 | NetbufQueFree (Sock->RcvBuffer.DataQueue);\r | |
8a67d61d | 701 | }\r |
702 | \r | |
766c7483 | 703 | FreePool (Sock);\r |
4f6e31e4 | 704 | \r |
8a67d61d | 705 | return NULL;\r |
706 | }\r | |
707 | \r | |
708 | \r | |
709 | /**\r | |
710 | Destroy a socket.\r | |
711 | \r | |
712 | @param Sock Pointer to the socket.\r | |
713 | \r | |
8a67d61d | 714 | **/\r |
715 | VOID\r | |
716 | SockDestroy (\r | |
77f00155 | 717 | IN OUT SOCKET *Sock\r |
8a67d61d | 718 | )\r |
719 | {\r | |
720 | VOID *SockProtocol;\r | |
721 | EFI_GUID *ProtocolGuid;\r | |
722 | EFI_STATUS Status;\r | |
723 | \r | |
f6b7393c | 724 | ASSERT (SockStream == Sock->Type);\r |
8a67d61d | 725 | \r |
4f6e31e4 | 726 | if (Sock->DestroyCallback != NULL) {\r |
727 | Sock->DestroyCallback (Sock, Sock->Context);\r | |
728 | }\r | |
729 | \r | |
8a67d61d | 730 | //\r |
731 | // Flush the completion token buffered\r | |
732 | // by sock and rcv, snd buffer\r | |
733 | //\r | |
734 | if (!SOCK_IS_UNCONFIGURED (Sock)) {\r | |
735 | \r | |
736 | SockConnFlush (Sock);\r | |
737 | SockSetState (Sock, SO_CLOSED);\r | |
738 | Sock->ConfigureState = SO_UNCONFIGURED;\r | |
739 | \r | |
740 | }\r | |
741 | //\r | |
75dce340 | 742 | // Destroy the RcvBuffer Queue and SendBuffer Queue\r |
8a67d61d | 743 | //\r |
744 | NetbufQueFree (Sock->RcvBuffer.DataQueue);\r | |
745 | NetbufQueFree (Sock->SndBuffer.DataQueue);\r | |
746 | \r | |
747 | //\r | |
748 | // Remove it from parent connection list if needed\r | |
749 | //\r | |
85511ddf | 750 | if (Sock->Parent != NULL) {\r |
8a67d61d | 751 | \r |
e48e37fc | 752 | RemoveEntryList (&(Sock->ConnectionList));\r |
8a67d61d | 753 | (Sock->Parent->ConnCnt)--;\r |
754 | \r | |
e48e37fc | 755 | DEBUG (\r |
dfc1f033 | 756 | (EFI_D_INFO,\r |
75dce340 | 757 | "SockDestroy: Delete a unaccepted socket from parent"\r |
e48e37fc | 758 | "now conncnt is %d\n",\r |
759 | Sock->Parent->ConnCnt)\r | |
760 | );\r | |
8a67d61d | 761 | \r |
762 | Sock->Parent = NULL;\r | |
763 | }\r | |
764 | \r | |
765 | //\r | |
766 | // Set the protocol guid and driver binding handle\r | |
767 | // in the light of Sock->SockType\r | |
768 | //\r | |
769 | ProtocolGuid = &gEfiTcp4ProtocolGuid;\r | |
770 | \r | |
771 | //\r | |
772 | // Retrieve the protocol installed on this sock\r | |
773 | //\r | |
774 | Status = gBS->OpenProtocol (\r | |
775 | Sock->SockHandle,\r | |
776 | ProtocolGuid,\r | |
777 | &SockProtocol,\r | |
778 | Sock->DriverBinding,\r | |
779 | Sock->SockHandle,\r | |
780 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
781 | );\r | |
782 | \r | |
783 | if (EFI_ERROR (Status)) {\r | |
784 | \r | |
e48e37fc | 785 | DEBUG ((EFI_D_ERROR, "SockDestroy: Open protocol installed "\r |
8a67d61d | 786 | "on socket failed with %r\n", Status));\r |
787 | \r | |
788 | goto FreeSock;\r | |
789 | }\r | |
790 | \r | |
791 | //\r | |
792 | // Uninstall the protocol installed on this sock\r | |
793 | // in the light of Sock->SockType\r | |
794 | //\r | |
795 | gBS->UninstallMultipleProtocolInterfaces (\r | |
796 | Sock->SockHandle,\r | |
797 | ProtocolGuid,\r | |
798 | SockProtocol,\r | |
799 | NULL\r | |
800 | );\r | |
801 | \r | |
802 | FreeSock:\r | |
766c7483 | 803 | FreePool (Sock);\r |
8a67d61d | 804 | return ;\r |
805 | }\r | |
806 | \r | |
807 | \r | |
808 | /**\r | |
77f00155 | 809 | Flush the sndBuffer and rcvBuffer of socket.\r |
8a67d61d | 810 | \r |
811 | @param Sock Pointer to the socket.\r | |
812 | \r | |
8a67d61d | 813 | **/\r |
814 | VOID\r | |
815 | SockConnFlush (\r | |
77f00155 | 816 | IN OUT SOCKET *Sock\r |
8a67d61d | 817 | )\r |
818 | {\r | |
819 | SOCKET *Child;\r | |
820 | \r | |
120db52c | 821 | ASSERT (Sock != NULL);\r |
8a67d61d | 822 | \r |
823 | //\r | |
824 | // Clear the flag in this socket\r | |
825 | //\r | |
826 | Sock->Flag = 0;\r | |
827 | \r | |
828 | //\r | |
829 | // Flush the SndBuffer and RcvBuffer of Sock\r | |
830 | //\r | |
831 | NetbufQueFlush (Sock->SndBuffer.DataQueue);\r | |
832 | NetbufQueFlush (Sock->RcvBuffer.DataQueue);\r | |
833 | \r | |
834 | //\r | |
835 | // Signal the pending token\r | |
836 | //\r | |
837 | if (Sock->ConnectionToken != NULL) {\r | |
838 | SIGNAL_TOKEN (Sock->ConnectionToken, Sock->SockError);\r | |
839 | Sock->ConnectionToken = NULL;\r | |
840 | }\r | |
841 | \r | |
842 | if (Sock->CloseToken != NULL) {\r | |
843 | SIGNAL_TOKEN (Sock->CloseToken, Sock->SockError);\r | |
844 | Sock->CloseToken = NULL;\r | |
845 | }\r | |
846 | \r | |
847 | SockFlushPendingToken (Sock, &(Sock->ListenTokenList));\r | |
848 | SockFlushPendingToken (Sock, &(Sock->RcvTokenList));\r | |
849 | SockFlushPendingToken (Sock, &(Sock->SndTokenList));\r | |
850 | SockFlushPendingToken (Sock, &(Sock->ProcessingSndTokenList));\r | |
851 | \r | |
852 | //\r | |
853 | // Destroy the pending connection, if it is a listening socket\r | |
854 | //\r | |
855 | if (SOCK_IS_LISTENING (Sock)) {\r | |
e48e37fc | 856 | while (!IsListEmpty (&Sock->ConnectionList)) {\r |
8a67d61d | 857 | Child = NET_LIST_HEAD (\r |
858 | &Sock->ConnectionList,\r | |
859 | SOCKET,\r | |
860 | ConnectionList\r | |
861 | );\r | |
862 | \r | |
863 | SockDestroyChild (Child);\r | |
864 | }\r | |
865 | \r | |
866 | Sock->ConnCnt = 0;\r | |
867 | }\r | |
868 | \r | |
869 | return ;\r | |
870 | }\r | |
871 | \r | |
872 | \r | |
873 | /**\r | |
874 | Set the state of the socket.\r | |
875 | \r | |
876 | @param Sock Pointer to the socket.\r | |
f6b7393c | 877 | @param State The new socket state to be set.\r |
8a67d61d | 878 | \r |
8a67d61d | 879 | **/\r |
880 | VOID\r | |
881 | SockSetState (\r | |
77f00155 | 882 | IN OUT SOCKET *Sock,\r |
f6b7393c | 883 | IN UINT8 State\r |
8a67d61d | 884 | )\r |
885 | {\r | |
886 | Sock->State = State;\r | |
887 | }\r | |
888 | \r | |
889 | \r | |
890 | /**\r | |
891 | Clone a new socket including its associated protocol control block.\r | |
892 | \r | |
893 | @param Sock Pointer to the socket to be cloned.\r | |
894 | \r | |
120db52c | 895 | @return Pointer to the newly cloned socket. If NULL, error condition occurred.\r |
8a67d61d | 896 | \r |
897 | **/\r | |
898 | SOCKET *\r | |
899 | SockClone (\r | |
900 | IN SOCKET *Sock\r | |
901 | )\r | |
902 | {\r | |
903 | SOCKET *ClonedSock;\r | |
904 | SOCK_INIT_DATA InitData;\r | |
905 | \r | |
120db52c | 906 | InitData.BackLog = Sock->BackLog;\r |
907 | InitData.Parent = Sock;\r | |
908 | InitData.State = Sock->State;\r | |
909 | InitData.ProtoHandler = Sock->ProtoHandler;\r | |
910 | InitData.Type = Sock->Type;\r | |
911 | InitData.RcvBufferSize = Sock->RcvBuffer.HighWater;\r | |
912 | InitData.SndBufferSize = Sock->SndBuffer.HighWater;\r | |
913 | InitData.DriverBinding = Sock->DriverBinding;\r | |
914 | InitData.Protocol = &(Sock->NetProtocol);\r | |
4f6e31e4 | 915 | InitData.CreateCallback = Sock->CreateCallback;\r |
916 | InitData.DestroyCallback = Sock->DestroyCallback;\r | |
917 | InitData.Context = Sock->Context;\r | |
918 | InitData.ProtoData = Sock->ProtoReserved;\r | |
919 | InitData.DataSize = sizeof (Sock->ProtoReserved);\r | |
8a67d61d | 920 | \r |
120db52c | 921 | ClonedSock = SockCreate (&InitData);\r |
8a67d61d | 922 | \r |
923 | if (NULL == ClonedSock) {\r | |
e48e37fc | 924 | DEBUG ((EFI_D_ERROR, "SockClone: no resource to create a cloned sock\n"));\r |
8a67d61d | 925 | return NULL;\r |
926 | }\r | |
927 | \r | |
8a67d61d | 928 | SockSetState (ClonedSock, SO_CONNECTING);\r |
929 | ClonedSock->ConfigureState = Sock->ConfigureState;\r | |
930 | \r | |
931 | return ClonedSock;\r | |
932 | }\r | |
933 | \r | |
934 | \r | |
935 | /**\r | |
120db52c | 936 | Called by the low layer protocol to indicate the socket a connection is \r |
276dcc1b | 937 | established. \r |
938 | \r | |
939 | This function just changes the socket's state to SO_CONNECTED \r | |
120db52c | 940 | and signals the token used for connection establishment.\r |
8a67d61d | 941 | \r |
942 | @param Sock Pointer to the socket associated with the\r | |
943 | established connection.\r | |
8a67d61d | 944 | **/\r |
945 | VOID\r | |
946 | SockConnEstablished (\r | |
947 | IN SOCKET *Sock\r | |
948 | )\r | |
949 | {\r | |
950 | \r | |
951 | ASSERT (SO_CONNECTING == Sock->State);\r | |
952 | \r | |
953 | SockSetState (Sock, SO_CONNECTED);\r | |
954 | \r | |
955 | if (NULL == Sock->Parent) {\r | |
956 | SockWakeConnToken (Sock);\r | |
957 | } else {\r | |
958 | SockWakeListenToken (Sock);\r | |
959 | }\r | |
960 | \r | |
961 | return ;\r | |
962 | }\r | |
963 | \r | |
964 | \r | |
965 | /**\r | |
276dcc1b | 966 | Called by the low layer protocol to indicate the connection is closed.\r |
967 | \r | |
968 | This function flushes the socket, sets the state to SO_CLOSED and signals \r | |
969 | the close token.\r | |
8a67d61d | 970 | \r |
971 | @param Sock Pointer to the socket associated with the closed\r | |
972 | connection.\r | |
276dcc1b | 973 | \r |
8a67d61d | 974 | **/\r |
975 | VOID\r | |
976 | SockConnClosed (\r | |
77f00155 | 977 | IN OUT SOCKET *Sock\r |
8a67d61d | 978 | )\r |
979 | {\r | |
85511ddf | 980 | if (Sock->CloseToken != NULL) {\r |
8a67d61d | 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 | |
276dcc1b | 996 | Called by low layer protocol to indicate that some data is sent or processed.\r |
997 | \r | |
120db52c | 998 | This function trims the sent data in the socket send buffer, signals the data \r |
999 | token if proper.\r | |
8a67d61d | 1000 | \r |
1001 | @param Sock Pointer to the socket.\r | |
1002 | @param Count The length of the data processed or sent, in bytes.\r | |
1003 | \r | |
8a67d61d | 1004 | **/\r |
1005 | VOID\r | |
1006 | SockDataSent (\r | |
1007 | IN SOCKET *Sock,\r | |
1008 | IN UINT32 Count\r | |
1009 | )\r | |
1010 | {\r | |
1011 | SOCK_TOKEN *SockToken;\r | |
1012 | SOCK_COMPLETION_TOKEN *SndToken;\r | |
1013 | \r | |
e48e37fc | 1014 | ASSERT (!IsListEmpty (&Sock->ProcessingSndTokenList));\r |
8a67d61d | 1015 | ASSERT (Count <= (Sock->SndBuffer.DataQueue)->BufSize);\r |
1016 | \r | |
1017 | NetbufQueTrim (Sock->SndBuffer.DataQueue, Count);\r | |
1018 | \r | |
1019 | //\r | |
1020 | // To check if we can signal some snd token in this socket\r | |
1021 | //\r | |
1022 | while (Count > 0) {\r | |
1023 | SockToken = NET_LIST_HEAD (\r | |
1024 | &(Sock->ProcessingSndTokenList),\r | |
1025 | SOCK_TOKEN,\r | |
1026 | TokenList\r | |
1027 | );\r | |
1028 | \r | |
1029 | SndToken = SockToken->Token;\r | |
1030 | \r | |
1031 | if (SockToken->RemainDataLen <= Count) {\r | |
1032 | \r | |
e48e37fc | 1033 | RemoveEntryList (&(SockToken->TokenList));\r |
8a67d61d | 1034 | SIGNAL_TOKEN (SndToken, EFI_SUCCESS);\r |
1035 | Count -= SockToken->RemainDataLen;\r | |
766c7483 | 1036 | FreePool (SockToken);\r |
8a67d61d | 1037 | } else {\r |
1038 | \r | |
1039 | SockToken->RemainDataLen -= Count;\r | |
1040 | Count = 0;\r | |
1041 | }\r | |
1042 | }\r | |
1043 | \r | |
1044 | //\r | |
1045 | // to judge if we can process some send token in\r | |
1046 | // Sock->SndTokenList, if so process those send token\r | |
1047 | //\r | |
1048 | SockProcessSndToken (Sock);\r | |
1049 | return ;\r | |
1050 | }\r | |
1051 | \r | |
1052 | \r | |
1053 | /**\r | |
1054 | Called by the low layer protocol to copy some data in socket send\r | |
1055 | buffer starting from the specific offset to a buffer provided by\r | |
1056 | the caller.\r | |
1057 | \r | |
1058 | @param Sock Pointer to the socket.\r | |
1059 | @param Offset The start point of the data to be copied.\r | |
1060 | @param Len The length of the data to be copied.\r | |
1061 | @param Dest Pointer to the destination to copy the data.\r | |
1062 | \r | |
1063 | @return The data size copied.\r | |
1064 | \r | |
1065 | **/\r | |
1066 | UINT32\r | |
1067 | SockGetDataToSend (\r | |
1068 | IN SOCKET *Sock,\r | |
1069 | IN UINT32 Offset,\r | |
1070 | IN UINT32 Len,\r | |
1071 | IN UINT8 *Dest\r | |
1072 | )\r | |
1073 | {\r | |
f6b7393c | 1074 | ASSERT ((Sock != NULL) && SockStream == Sock->Type);\r |
8a67d61d | 1075 | \r |
1076 | return NetbufQueCopy (\r | |
1077 | Sock->SndBuffer.DataQueue,\r | |
1078 | Offset,\r | |
1079 | Len,\r | |
1080 | Dest\r | |
1081 | );\r | |
1082 | }\r | |
1083 | \r | |
1084 | \r | |
1085 | /**\r | |
276dcc1b | 1086 | Called by the low layer protocol to deliver received data to socket layer.\r |
1087 | \r | |
120db52c | 1088 | This function will append the data to the socket receive buffer, set ther \r |
1089 | urgent data length and then check if any receive token can be signaled.\r | |
8a67d61d | 1090 | \r |
1091 | @param Sock Pointer to the socket.\r | |
1092 | @param NetBuffer Pointer to the buffer that contains the received\r | |
1093 | data.\r | |
1094 | @param UrgLen The length of the urgent data in the received data.\r | |
1095 | \r | |
8a67d61d | 1096 | **/\r |
1097 | VOID\r | |
1098 | SockDataRcvd (\r | |
77f00155 | 1099 | IN SOCKET *Sock,\r |
1100 | IN OUT NET_BUF *NetBuffer,\r | |
1101 | IN UINT32 UrgLen\r | |
8a67d61d | 1102 | )\r |
1103 | {\r | |
120db52c | 1104 | ASSERT ((Sock != NULL) && (Sock->RcvBuffer.DataQueue != NULL) &&\r |
8a67d61d | 1105 | UrgLen <= NetBuffer->TotalSize);\r |
1106 | \r | |
1107 | NET_GET_REF (NetBuffer);\r | |
1108 | \r | |
1109 | ((TCP_RSV_DATA *) (NetBuffer->ProtoData))->UrgLen = UrgLen;\r | |
1110 | \r | |
1111 | NetbufQueAppend (Sock->RcvBuffer.DataQueue, NetBuffer);\r | |
1112 | \r | |
1113 | SockWakeRcvToken (Sock);\r | |
1114 | return ;\r | |
1115 | }\r | |
1116 | \r | |
1117 | \r | |
1118 | /**\r | |
1119 | Get the length of the free space of the specific socket buffer.\r | |
1120 | \r | |
1121 | @param Sock Pointer to the socket.\r | |
1122 | @param Which Flag to indicate which socket buffer to check,\r | |
1123 | either send buffer or receive buffer.\r | |
1124 | \r | |
1125 | @return The length of the free space, in bytes.\r | |
1126 | \r | |
1127 | **/\r | |
1128 | UINT32\r | |
1129 | SockGetFreeSpace (\r | |
1130 | IN SOCKET *Sock,\r | |
1131 | IN UINT32 Which\r | |
1132 | )\r | |
1133 | {\r | |
1134 | UINT32 BufferCC;\r | |
1135 | SOCK_BUFFER *SockBuffer;\r | |
1136 | \r | |
120db52c | 1137 | ASSERT ((Sock != NULL) && ((SOCK_SND_BUF == Which) || (SOCK_RCV_BUF == Which)));\r |
8a67d61d | 1138 | \r |
1139 | if (SOCK_SND_BUF == Which) {\r | |
1140 | SockBuffer = &(Sock->SndBuffer);\r | |
1141 | } else {\r | |
1142 | SockBuffer = &(Sock->RcvBuffer);\r | |
1143 | }\r | |
1144 | \r | |
1145 | BufferCC = (SockBuffer->DataQueue)->BufSize;\r | |
1146 | \r | |
1147 | if (BufferCC >= SockBuffer->HighWater) {\r | |
1148 | \r | |
1149 | return 0;\r | |
1150 | }\r | |
1151 | \r | |
1152 | return SockBuffer->HighWater - BufferCC;\r | |
1153 | }\r | |
1154 | \r | |
1155 | \r | |
1156 | /**\r | |
1157 | Signal the receive token with the specific error or\r | |
1158 | set socket error code after error is received.\r | |
1159 | \r | |
1160 | @param Sock Pointer to the socket.\r | |
1161 | @param Error The error code received.\r | |
1162 | \r | |
8a67d61d | 1163 | **/\r |
1164 | VOID\r | |
1165 | SockRcvdErr (\r | |
77f00155 | 1166 | IN OUT SOCKET *Sock,\r |
1167 | IN EFI_STATUS Error\r | |
8a67d61d | 1168 | )\r |
1169 | {\r | |
1170 | SOCK_TOKEN *SockToken;\r | |
1171 | \r | |
e48e37fc | 1172 | if (!IsListEmpty (&Sock->RcvTokenList)) {\r |
8a67d61d | 1173 | \r |
1174 | SockToken = NET_LIST_HEAD (\r | |
1175 | &Sock->RcvTokenList,\r | |
1176 | SOCK_TOKEN,\r | |
1177 | TokenList\r | |
1178 | );\r | |
1179 | \r | |
e48e37fc | 1180 | RemoveEntryList (&SockToken->TokenList);\r |
8a67d61d | 1181 | \r |
1182 | SIGNAL_TOKEN (SockToken->Token, Error);\r | |
1183 | \r | |
766c7483 | 1184 | FreePool (SockToken);\r |
8a67d61d | 1185 | } else {\r |
1186 | \r | |
1187 | SOCK_ERROR (Sock, Error);\r | |
1188 | }\r | |
1189 | }\r | |
1190 | \r | |
1191 | \r | |
1192 | /**\r | |
276dcc1b | 1193 | Called by the low layer protocol to indicate that there will be no more data \r |
1194 | from the communication peer.\r | |
1195 | \r | |
1196 | This function set the socket's state to SO_NO_MORE_DATA and signal all queued \r | |
1197 | IO tokens with the error status EFI_CONNECTION_FIN.\r | |
8a67d61d | 1198 | \r |
1199 | @param Sock Pointer to the socket.\r | |
1200 | \r | |
8a67d61d | 1201 | **/\r |
1202 | VOID\r | |
1203 | SockNoMoreData (\r | |
77f00155 | 1204 | IN OUT SOCKET *Sock\r |
8a67d61d | 1205 | )\r |
1206 | {\r | |
1207 | EFI_STATUS Err;\r | |
1208 | \r | |
1209 | SOCK_NO_MORE_DATA (Sock);\r | |
1210 | \r | |
e48e37fc | 1211 | if (!IsListEmpty (&Sock->RcvTokenList)) {\r |
8a67d61d | 1212 | \r |
1213 | ASSERT (0 == GET_RCV_DATASIZE (Sock));\r | |
1214 | \r | |
1215 | Err = Sock->SockError;\r | |
1216 | \r | |
1217 | SOCK_ERROR (Sock, EFI_CONNECTION_FIN);\r | |
1218 | \r | |
1219 | SockFlushPendingToken (Sock, &Sock->RcvTokenList);\r | |
1220 | \r | |
1221 | SOCK_ERROR (Sock, Err);\r | |
1222 | \r | |
1223 | }\r | |
1224 | \r | |
1225 | }\r | |
1226 | \r | |
1227 | \r | |
1228 | /**\r | |
1229 | Get the first buffer block in the specific socket buffer.\r | |
1230 | \r | |
1231 | @param Sockbuf Pointer to the socket buffer.\r | |
1232 | \r | |
1233 | @return Pointer to the first buffer in the queue. NULL if the queue is empty.\r | |
1234 | \r | |
1235 | **/\r | |
1236 | NET_BUF *\r | |
1237 | SockBufFirst (\r | |
1238 | IN SOCK_BUFFER *Sockbuf\r | |
1239 | )\r | |
1240 | {\r | |
e48e37fc | 1241 | LIST_ENTRY *NetbufList;\r |
8a67d61d | 1242 | \r |
1243 | NetbufList = &(Sockbuf->DataQueue->BufList);\r | |
1244 | \r | |
e48e37fc | 1245 | if (IsListEmpty (NetbufList)) {\r |
8a67d61d | 1246 | return NULL;\r |
1247 | }\r | |
1248 | \r | |
1249 | return NET_LIST_HEAD (NetbufList, NET_BUF, List);\r | |
1250 | }\r | |
1251 | \r | |
1252 | \r | |
1253 | /**\r | |
1254 | Get the next buffer block in the specific socket buffer.\r | |
1255 | \r | |
1256 | @param Sockbuf Pointer to the socket buffer.\r | |
1257 | @param SockEntry Pointer to the buffer block prior to the required\r | |
1258 | one.\r | |
1259 | \r | |
120db52c | 1260 | @return Pointer to the buffer block next to SockEntry. NULL if SockEntry is \r |
1261 | the tail or head entry.\r | |
8a67d61d | 1262 | \r |
1263 | **/\r | |
1264 | NET_BUF *\r | |
1265 | SockBufNext (\r | |
1266 | IN SOCK_BUFFER *Sockbuf,\r | |
1267 | IN NET_BUF *SockEntry\r | |
1268 | )\r | |
1269 | {\r | |
e48e37fc | 1270 | LIST_ENTRY *NetbufList;\r |
8a67d61d | 1271 | \r |
1272 | NetbufList = &(Sockbuf->DataQueue->BufList);\r | |
1273 | \r | |
1274 | if ((SockEntry->List.ForwardLink == NetbufList) ||\r | |
1275 | (SockEntry->List.BackLink == &SockEntry->List) ||\r | |
120db52c | 1276 | (SockEntry->List.ForwardLink == &SockEntry->List)) {\r |
8a67d61d | 1277 | \r |
1278 | return NULL;\r | |
1279 | }\r | |
1280 | \r | |
1281 | return NET_LIST_USER_STRUCT (SockEntry->List.ForwardLink, NET_BUF, List);\r | |
1282 | }\r |