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83cbd279 | 1 | /** @file\r |
dab714aa | 2 | TCP4 protocol services header file.\r |
83cbd279 | 3 | \r |
db0f0d3c | 4 | Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 5 | This program and the accompanying materials\r |
83cbd279 | 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 |
83cbd279 | 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 | |
83cbd279 | 13 | **/\r |
14 | \r | |
15 | #ifndef _TCP4_MAIN_H_\r | |
16 | #define _TCP4_MAIN_H_\r | |
17 | \r | |
18 | #include "Socket.h"\r | |
19 | \r | |
20 | #include "Tcp4Proto.h"\r | |
dab714aa | 21 | #include "Tcp4Func.h"\r |
83cbd279 | 22 | #include "Tcp4Driver.h"\r |
23 | \r | |
24 | \r | |
25 | extern UINT16 mTcp4RandomPort;\r | |
dfc1f033 | 26 | extern CHAR16 *mTcpStateName[];\r |
83cbd279 | 27 | \r |
28 | //\r | |
29 | // Driver Produced Protocol Prototypes\r | |
30 | //\r | |
31 | \r | |
83cbd279 | 32 | //\r |
33 | // Function prototype for the Tcp4 socket request handler\r | |
34 | //\r | |
dfc1f033 | 35 | /**\r |
36 | The procotol handler provided to the socket layer, used to\r | |
37 | dispatch the socket level requests by calling the corresponding\r | |
38 | TCP layer functions.\r | |
39 | \r | |
40 | @param Sock Pointer to the socket of this TCP instance.\r | |
41 | @param Request The code of this operation request.\r | |
42 | @param Data Pointer to the operation specific data passed in\r | |
43 | together with the operation request.\r | |
44 | \r | |
45 | @retval EFI_SUCCESS The socket request is completed successfully.\r | |
46 | @retval other The error status returned by the corresponding TCP\r | |
47 | layer function.\r | |
48 | \r | |
49 | **/\r | |
83cbd279 | 50 | EFI_STATUS\r |
51 | Tcp4Dispatcher (\r | |
52 | IN SOCKET *Sock,\r | |
f6b7393c | 53 | IN UINT8 Request,\r |
83cbd279 | 54 | IN VOID *Data OPTIONAL\r |
55 | );\r | |
dfc1f033 | 56 | \r |
57 | ///\r | |
58 | /// TCP mode data\r | |
59 | ///\r | |
83cbd279 | 60 | typedef struct _TCP4_MODE_DATA {\r |
61 | EFI_TCP4_CONNECTION_STATE *Tcp4State;\r | |
62 | EFI_TCP4_CONFIG_DATA *Tcp4ConfigData;\r | |
63 | EFI_IP4_MODE_DATA *Ip4ModeData;\r | |
64 | EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData;\r | |
65 | EFI_SIMPLE_NETWORK_MODE *SnpModeData;\r | |
66 | } TCP4_MODE_DATA;\r | |
67 | \r | |
dfc1f033 | 68 | ///\r |
69 | /// TCP route infomation data\r | |
70 | ///\r | |
83cbd279 | 71 | typedef struct _TCP4_ROUTE_INFO {\r |
72 | BOOLEAN DeleteRoute;\r | |
73 | EFI_IPv4_ADDRESS *SubnetAddress;\r | |
74 | EFI_IPv4_ADDRESS *SubnetMask;\r | |
75 | EFI_IPv4_ADDRESS *GatewayAddress;\r | |
76 | } TCP4_ROUTE_INFO;\r | |
77 | \r | |
dfc1f033 | 78 | /**\r |
79 | Get the current operational status of a TCP instance.\r | |
80 | \r | |
81 | The GetModeData() function copies the current operational settings of this \r | |
82 | EFI TCPv4 Protocol instance into user-supplied buffers. This function can \r | |
83 | also be used to retrieve the operational setting of underlying drivers \r | |
84 | such as IPv4, MNP, or SNP.\r | |
85 | \r | |
86 | @param This Pointer to the EFI_TCP4_PROTOCOL instance.\r | |
87 | @param Tcp4State Pointer to the buffer to receive the current TCP\r | |
88 | state.\r | |
89 | @param Tcp4ConfigData Pointer to the buffer to receive the current TCP\r | |
90 | configuration.\r | |
91 | @param Ip4ModeData Pointer to the buffer to receive the current IPv4 \r | |
92 | configuration data used by the TCPv4 instance.\r | |
93 | @param MnpConfigData Pointer to the buffer to receive the current MNP\r | |
94 | configuration data indirectly used by the TCPv4\r | |
95 | Instance.\r | |
96 | @param SnpModeData Pointer to the buffer to receive the current SNP\r | |
97 | configuration data indirectly used by the TCPv4\r | |
98 | Instance.\r | |
99 | \r | |
100 | @retval EFI_SUCCESS The mode data was read.\r | |
101 | @retval EFI_NOT_STARTED No configuration data is available because this\r | |
102 | instance hasn't been started.\r | |
103 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
104 | \r | |
105 | **/\r | |
83cbd279 | 106 | EFI_STATUS\r |
107 | EFIAPI\r | |
108 | Tcp4GetModeData (\r | |
db0f0d3c | 109 | IN EFI_TCP4_PROTOCOL *This,\r |
110 | OUT EFI_TCP4_CONNECTION_STATE *Tcp4State OPTIONAL,\r | |
111 | OUT EFI_TCP4_CONFIG_DATA *Tcp4ConfigData OPTIONAL,\r | |
112 | OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL,\r | |
113 | OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,\r | |
114 | OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL\r | |
83cbd279 | 115 | );\r |
116 | \r | |
dfc1f033 | 117 | \r |
118 | /**\r | |
119 | Initialize or brutally reset the operational parameters for\r | |
120 | this EFI TCPv4 instance.\r | |
121 | \r | |
122 | The Configure() function does the following:\r | |
123 | * Initialize this EFI TCPv4 instance, i.e., initialize the communication end \r | |
124 | setting, specify active open or passive open for an instance.\r | |
125 | * Reset this TCPv4 instance brutally, i.e., cancel all pending asynchronous \r | |
126 | tokens, flush transmission and receiving buffer directly without informing \r | |
127 | the communication peer.\r | |
128 | No other TCPv4 Protocol operation can be executed by this instance \r | |
129 | until it is configured properly. For an active TCP4 instance, after a proper \r | |
130 | configuration it may call Connect() to initiates the three-way handshake. \r | |
131 | For a passive TCP4 instance, its state will transit to Tcp4StateListen after \r | |
132 | configuration, and Accept() may be called to listen the incoming TCP connection \r | |
133 | request. If TcpConfigData is set to NULL, the instance is reset. Resetting \r | |
134 | process will be done brutally, the state machine will be set to Tcp4StateClosed \r | |
135 | directly, the receive queue and transmit queue will be flushed, and no traffic is \r | |
136 | allowed through this instance.\r | |
137 | \r | |
138 | @param This Pointer to the EFI_TCP4_PROTOCOL instance.\r | |
139 | @param TcpConfigData Pointer to the configure data to configure the\r | |
140 | instance.\r | |
141 | \r | |
142 | @retval EFI_SUCCESS The operational settings are set, changed, or\r | |
143 | reset successfully.\r | |
144 | @retval EFI_NO_MAPPING When using a default address, configuration\r | |
145 | (through DHCP, BOOTP, RARP, etc.) is not\r | |
146 | finished.\r | |
147 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
148 | @retval EFI_ACCESS_DENIED Configuring TCP instance when it is already\r | |
149 | configured.\r | |
150 | @retval EFI_DEVICE_ERROR An unexpected network or system error occurred.\r | |
151 | @retval EFI_UNSUPPORTED One or more of the control options are not\r | |
152 | supported in the implementation.\r | |
153 | @retval EFI_OUT_OF_RESOURCES Could not allocate enough system resources.\r | |
154 | \r | |
155 | **/\r | |
83cbd279 | 156 | EFI_STATUS\r |
157 | EFIAPI\r | |
158 | Tcp4Configure (\r | |
85511ddf | 159 | IN EFI_TCP4_PROTOCOL *This,\r |
dfc1f033 | 160 | IN EFI_TCP4_CONFIG_DATA *TcpConfigData OPTIONAL\r |
83cbd279 | 161 | );\r |
162 | \r | |
dfc1f033 | 163 | /**\r |
164 | Add or delete routing entries.\r | |
165 | \r | |
166 | The Routes() function adds or deletes a route from the instance's routing table.\r | |
167 | The most specific route is selected by comparing the SubnetAddress with the \r | |
168 | destination IP address's arithmetical AND to the SubnetMask.\r | |
169 | The default route is added with both SubnetAddress and SubnetMask set to 0.0.0.0. \r | |
170 | The default route matches all destination IP addresses if there is no more specific route.\r | |
171 | Direct route is added with GatewayAddress set to 0.0.0.0. Packets are sent to \r | |
172 | the destination host if its address can be found in the Address Resolution Protocol (ARP) \r | |
173 | cache or it is on the local subnet. If the instance is configured to use default \r | |
174 | address, a direct route to the local network will be added automatically.\r | |
175 | Each TCP instance has its own independent routing table. Instance that uses the \r | |
176 | default IP address will have a copy of the EFI_IP4_CONFIG_PROTOCOL's routing table. \r | |
177 | The copy will be updated automatically whenever the IP driver reconfigures its \r | |
178 | instance. As a result, the previous modification to the instance's local copy \r | |
179 | will be lost. The priority of checking the route table is specific with IP \r | |
180 | implementation and every IP implementation must comply with RFC 1122.\r | |
181 | \r | |
182 | @param This Pointer to the EFI_TCP4_PROTOCOL instance.\r | |
183 | @param DeleteRoute If TRUE, delete the specified route from routing\r | |
184 | table; if FALSE, add the specified route to\r | |
185 | routing table.\r | |
186 | DestinationAddress and SubnetMask are used as \r | |
187 | the keywords to search route entry.\r | |
188 | @param SubnetAddress The destination network.\r | |
189 | @param SubnetMask The subnet mask for the destination network.\r | |
190 | @param GatewayAddress The gateway address for this route. \r | |
191 | It must be on the same subnet with the station \r | |
192 | address unless a direct route is specified.\r | |
193 | \r | |
194 | @retval EFI_SUCCESS The operation completed successfully.\r | |
195 | @retval EFI_NOT_STARTED The EFI_TCP4_PROTOCOL instance has not been\r | |
196 | configured.\r | |
197 | @retval EFI_NO_MAPPING When using a default address, configuration\r | |
198 | (through DHCP, BOOTP, RARP, etc.) is not\r | |
199 | finished.\r | |
200 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
201 | @retval EFI_OUT_OF_RESOURCES Could not allocate enough resources to add the\r | |
202 | entry to the routing table.\r | |
203 | @retval EFI_NOT_FOUND This route is not in the routing table.\r | |
204 | @retval EFI_ACCESS_DENIED This route is already in the routing table.\r | |
205 | @retval EFI_UNSUPPORTED The TCP driver does not support this operation.\r | |
206 | \r | |
207 | **/\r | |
83cbd279 | 208 | EFI_STATUS\r |
209 | EFIAPI\r | |
210 | Tcp4Routes (\r | |
211 | IN EFI_TCP4_PROTOCOL *This,\r | |
212 | IN BOOLEAN DeleteRoute,\r | |
213 | IN EFI_IPv4_ADDRESS *SubnetAddress,\r | |
214 | IN EFI_IPv4_ADDRESS *SubnetMask,\r | |
215 | IN EFI_IPv4_ADDRESS *GatewayAddress\r | |
216 | );\r | |
217 | \r | |
dfc1f033 | 218 | /**\r |
219 | Initiate a nonblocking TCP connection request for an active TCP instance.\r | |
220 | \r | |
221 | The Connect() function will initiate an active open to the remote peer configured \r | |
222 | in current TCP instance if it is configured active. If the connection succeeds \r | |
223 | or fails due to any error, the ConnectionToken->CompletionToken.Event will be \r | |
224 | signaled and ConnectionToken->CompletionToken.Status will be updated accordingly. \r | |
225 | This function can only be called for the TCP instance in Tcp4StateClosed state. \r | |
226 | The instance will transfer into Tcp4StateSynSent if the function returns EFI_SUCCESS. \r | |
227 | If TCP three way handshake succeeds, its state will become Tcp4StateEstablished, \r | |
228 | otherwise, the state will return to Tcp4StateClosed.\r | |
229 | \r | |
230 | @param This Pointer to the EFI_TCP4_PROTOCOL instance\r | |
231 | @param ConnectionToken Pointer to the connection token to return when\r | |
232 | the TCP three way handshake finishes.\r | |
233 | \r | |
234 | @retval EFI_SUCCESS The connection request is successfully initiated \r | |
235 | and the state of this TCPv4 instance has \r | |
236 | been changed to Tcp4StateSynSent.\r | |
237 | @retval EFI_NOT_STARTED This EFI_TCP4_PROTOCOL instance hasn't been\r | |
238 | configured.\r | |
239 | @retval EFI_ACCESS_DENIED The instance is not configured as an active one\r | |
240 | or it is not in Tcp4StateClosed state.\r | |
241 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
242 | @retval EFI_OUT_OF_RESOURCES The driver can't allocate enough resource to\r | |
243 | initiate the active open.\r | |
244 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
245 | \r | |
246 | **/\r | |
83cbd279 | 247 | EFI_STATUS\r |
248 | EFIAPI\r | |
249 | Tcp4Connect (\r | |
250 | IN EFI_TCP4_PROTOCOL *This,\r | |
251 | IN EFI_TCP4_CONNECTION_TOKEN *ConnectionToken\r | |
252 | );\r | |
253 | \r | |
dfc1f033 | 254 | /**\r |
255 | Listen on the passive instance to accept an incoming connection request.\r | |
256 | \r | |
257 | The Accept() function initiates an asynchronous accept request to wait for an \r | |
258 | incoming connection on the passive TCP instance. If a remote peer successfully \r | |
259 | establishes a connection with this instance, a new TCP instance will be created \r | |
260 | and its handle will be returned in ListenToken->NewChildHandle. The newly created \r | |
261 | instance is configured by inheriting the passive instance's configuration and is \r | |
262 | ready for use upon return. The instance is in the Tcp4StateEstablished state.\r | |
263 | The ListenToken->CompletionToken.Event will be signaled when a new connection \r | |
264 | is accepted, user aborts the listen or connection is reset. This function only \r | |
265 | can be called when current TCP instance is in Tcp4StateListen state.\r | |
266 | \r | |
267 | @param This Pointer to the EFI_TCP4_PROTOCOL instance\r | |
268 | @param ListenToken Pointer to the listen token to return when\r | |
269 | operation finishes.\r | |
270 | \r | |
271 | @retval EFI_SUCCESS The listen token has been queued successfully.\r | |
272 | @retval EFI_NOT_STARTED The EFI_TCP4_PROTOCOL instance hasn't been\r | |
273 | configured.\r | |
274 | @retval EFI_ACCESS_DENIED The instatnce is not a passive one or it is not\r | |
275 | in Tcp4StateListen state or a same listen token\r | |
276 | has already existed in the listen token queue of\r | |
277 | this TCP instance.\r | |
278 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
279 | @retval EFI_OUT_OF_RESOURCES Could not allocate enough resources to finish\r | |
280 | the operation.\r | |
281 | @retval EFI_DEVICE_ERROR Any unexpected and not belonged to above category error.\r | |
282 | \r | |
283 | **/\r | |
83cbd279 | 284 | EFI_STATUS\r |
285 | EFIAPI\r | |
286 | Tcp4Accept (\r | |
287 | IN EFI_TCP4_PROTOCOL *This,\r | |
288 | IN EFI_TCP4_LISTEN_TOKEN *ListenToken\r | |
289 | );\r | |
290 | \r | |
dfc1f033 | 291 | /**\r |
292 | Queues outgoing data into the transmit queue.\r | |
293 | \r | |
294 | The Transmit() function queues a sending request to this TCPv4 instance along \r | |
295 | with the user data. The status of the token is updated and the event in the token \r | |
296 | will be signaled once the data is sent out or some error occurs.\r | |
297 | \r | |
298 | @param This Pointer to the EFI_TCP4_PROTOCOL instance\r | |
299 | @param Token Pointer to the completion token to queue to the\r | |
300 | transmit queue\r | |
301 | \r | |
302 | @retval EFI_SUCCESS The data has been queued for transmission.\r | |
303 | @retval EFI_NOT_STARTED The EFI_TCP4_PROTOCOL instance hasn't been\r | |
304 | configured.\r | |
305 | @retval EFI_NO_MAPPING When using a default address, configuration\r | |
306 | (DHCP, BOOTP, RARP, etc.) is not finished yet.\r | |
307 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
308 | @retval EFI_ACCESS_DENIED One or more of the following conditions is TRUE:\r | |
309 | * A transmit completion token with the same\r | |
310 | Token-> CompletionToken.Event was already in the\r | |
311 | transmission queue. \r | |
312 | * The current instance is in Tcp4StateClosed state \r | |
313 | * The current instance is a passive one and \r | |
314 | it is in Tcp4StateListen state. \r | |
315 | * User has called Close() to disconnect this \r | |
316 | connection.\r | |
317 | @retval EFI_NOT_READY The completion token could not be queued because\r | |
318 | the transmit queue is full.\r | |
319 | @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data because of\r | |
320 | resource shortage.\r | |
321 | @retval EFI_NETWORK_UNREACHABLE There is no route to the destination network or\r | |
322 | address.\r | |
323 | \r | |
324 | **/\r | |
83cbd279 | 325 | EFI_STATUS\r |
326 | EFIAPI\r | |
327 | Tcp4Transmit (\r | |
328 | IN EFI_TCP4_PROTOCOL *This,\r | |
329 | IN EFI_TCP4_IO_TOKEN *Token\r | |
330 | );\r | |
331 | \r | |
dfc1f033 | 332 | /**\r |
333 | Place an asynchronous receive request into the receiving queue.\r | |
334 | \r | |
335 | The Receive() function places a completion token into the receive packet queue. \r | |
336 | This function is always asynchronous. The caller must allocate the \r | |
337 | Token->CompletionToken.Event and the FragmentBuffer used to receive data. He also \r | |
338 | must fill the DataLength which represents the whole length of all FragmentBuffer. \r | |
339 | When the receive operation completes, the EFI TCPv4 Protocol driver updates the \r | |
340 | Token->CompletionToken.Status and Token->Packet.RxData fields and the \r | |
341 | Token->CompletionToken.Event is signaled. If got data the data and its length \r | |
342 | will be copy into the FragmentTable, in the same time the full length of received \r | |
343 | data will be recorded in the DataLength fields. Providing a proper notification \r | |
344 | function and context for the event will enable the user to receive the notification \r | |
345 | and receiving status. That notification function is guaranteed to not be re-entered.\r | |
346 | \r | |
347 | @param This Pointer to the EFI_TCP4_PROTOCOL instance.\r | |
348 | @param Token Pointer to a token that is associated with the\r | |
349 | receive data descriptor.\r | |
350 | \r | |
351 | @retval EFI_SUCCESS The receive completion token was cached.\r | |
352 | @retval EFI_NOT_STARTED The EFI_TCP4_PROTOCOL instance hasn't been\r | |
353 | configured.\r | |
354 | @retval EFI_NO_MAPPING When using a default address, configuration\r | |
355 | (DHCP, BOOTP, RARP, etc.) is not finished yet.\r | |
356 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
357 | @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued\r | |
358 | due to a lack of system resources.\r | |
359 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
360 | The EFI TCPv4 Protocol instance has been reset \r | |
361 | to startup defaults.\r | |
362 | @retval EFI_ACCESS_DENIED One or more of the following conditions is TRUE:\r | |
363 | * A receive completion token with the same\r | |
364 | Token->CompletionToken.Event was already in \r | |
365 | the receive queue. \r | |
366 | * The current instance is in Tcp4StateClosed state. \r | |
367 | * The current instance is a passive one and it \r | |
368 | is in Tcp4StateListen state. \r | |
369 | * User has called Close() to disconnect this \r | |
370 | connection.\r | |
371 | @retval EFI_CONNECTION_FIN The communication peer has closed the connection\r | |
372 | and there is no any buffered data in the receive\r | |
373 | buffer of this instance.\r | |
374 | @retval EFI_NOT_READY The receive request could not be queued because\r | |
375 | the receive queue is full.\r | |
376 | \r | |
377 | **/\r | |
83cbd279 | 378 | EFI_STATUS\r |
85511ddf | 379 | EFIAPI\r |
83cbd279 | 380 | Tcp4Receive (\r |
381 | IN EFI_TCP4_PROTOCOL *This,\r | |
382 | IN EFI_TCP4_IO_TOKEN *Token\r | |
383 | );\r | |
384 | \r | |
dfc1f033 | 385 | /**\r |
386 | Disconnecting a TCP connection gracefully or reset a TCP connection.\r | |
387 | \r | |
388 | Initiate an asynchronous close token to TCP driver. After Close() is called, \r | |
389 | any buffered transmission data will be sent by TCP driver and the current \r | |
390 | instance will have a graceful close working flow described as RFC 793 if \r | |
391 | AbortOnClose is set to FALSE, otherwise, a rest packet will be sent by TCP \r | |
392 | driver to fast disconnect this connection. When the close operation completes \r | |
393 | successfully the TCP instance is in Tcp4StateClosed state, all pending \r | |
394 | asynchronous operation is signaled and any buffers used for TCP network traffic \r | |
395 | is flushed.\r | |
396 | \r | |
397 | @param This Pointer to the EFI_TCP4_PROTOCOL instance.\r | |
398 | @param CloseToken Pointer to the close token to return when\r | |
399 | operation finishes.\r | |
400 | \r | |
401 | @retval EFI_SUCCESS The operation completed successfully.\r | |
402 | @retval EFI_NOT_STARTED The EFI_TCP4_PROTOCOL instance hasn't been\r | |
403 | configured.\r | |
404 | @retval EFI_ACCESS_DENIED One or more of the following are TRUE: \r | |
405 | * Configure() has been called with TcpConfigData\r | |
406 | set to NULL and this function has not returned.\r | |
407 | * Previous Close() call on this instance has not\r | |
408 | finished.\r | |
409 | @retval EFI_INVALID_PARAMETER One ore more parameters are invalid.\r | |
410 | @retval EFI_OUT_OF_RESOURCES Could not allocate enough resource to finish the\r | |
411 | operation.\r | |
412 | @retval EFI_DEVICE_ERROR Any unexpected and not belonged to above\r | |
413 | category error.\r | |
414 | \r | |
415 | **/\r | |
83cbd279 | 416 | EFI_STATUS\r |
417 | EFIAPI\r | |
418 | Tcp4Close (\r | |
419 | IN EFI_TCP4_PROTOCOL *This,\r | |
420 | IN EFI_TCP4_CLOSE_TOKEN *CloseToken\r | |
421 | );\r | |
422 | \r | |
dfc1f033 | 423 | /**\r |
424 | Abort an asynchronous connection, listen, transmission or receive request.\r | |
425 | \r | |
426 | The Cancel() function aborts a pending connection, listen, transmit or receive \r | |
427 | request. If Token is not NULL and the token is in the connection, listen, \r | |
428 | transmission or receive queue when it is being cancelled, its Token->Status \r | |
429 | will be set to EFI_ABORTED and then Token->Event will be signaled. If the token \r | |
430 | is not in one of the queues, which usually means that the asynchronous operation \r | |
431 | has completed, EFI_NOT_FOUND is returned. If Token is NULL all asynchronous token \r | |
432 | issued by Connect(), Accept(), Transmit() and Receive()will be aborted.\r | |
433 | NOTE: It has not been implemented currently.\r | |
434 | \r | |
435 | @param This Pointer to the EFI_TCP4_PROTOCOL instance.\r | |
436 | @param Token Pointer to a token that has been issued by\r | |
437 | Connect(), Accept(), Transmit() or Receive(). If\r | |
438 | NULL, all pending tokens issued by above four\r | |
439 | functions will be aborted.\r | |
440 | \r | |
441 | @retval EFI_SUCCESS The asynchronous I/O request is aborted and Token->Event\r | |
442 | is signaled.\r | |
443 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
444 | @retval EFI_NOT_STARTED This instance hasn's been configured.\r | |
445 | @retval EFI_NO_MAPPING When using the default address, configuration\r | |
446 | (DHCP, BOOTP,RARP, etc.) hasn's finished yet.\r | |
447 | @retval EFI_NOT_FOUND The asynchronous I/O request isn's found in the \r | |
448 | transmission or receive queue. It has either \r | |
449 | completed or wasn's issued by Transmit() and Receive().\r | |
450 | @retval EFI_UNSUPPORTED The operation is not supported in current\r | |
451 | implementation.\r | |
452 | \r | |
453 | **/\r | |
83cbd279 | 454 | EFI_STATUS\r |
455 | EFIAPI\r | |
456 | Tcp4Cancel (\r | |
85511ddf | 457 | IN EFI_TCP4_PROTOCOL *This,\r |
dfc1f033 | 458 | IN EFI_TCP4_COMPLETION_TOKEN *Token OPTIONAL\r |
83cbd279 | 459 | );\r |
460 | \r | |
dfc1f033 | 461 | /**\r |
462 | Poll to receive incoming data and transmit outgoing segments.\r | |
463 | \r | |
464 | The Poll() function increases the rate that data is moved between the network \r | |
465 | and application and can be called when the TCP instance is created successfully. \r | |
466 | Its use is optional. In some implementations, the periodical timer in the MNP \r | |
467 | driver may not poll the underlying communications device fast enough to avoid \r | |
468 | drop packets. Drivers and applications that are experiencing packet loss should \r | |
469 | try calling the Poll() function in a high frequency.\r | |
470 | \r | |
471 | @param This Pointer to the EFI_TCP4_PROTOCOL instance.\r | |
472 | \r | |
473 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
474 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
475 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
476 | @retval EFI_NOT_READY No incoming or outgoing data was processed.\r | |
477 | @retval EFI_TIMEOUT Data was dropped out of the transmission or\r | |
478 | receive queue. Consider increasing the polling\r | |
479 | rate.\r | |
480 | \r | |
481 | **/\r | |
83cbd279 | 482 | EFI_STATUS\r |
483 | EFIAPI\r | |
484 | Tcp4Poll (\r | |
485 | IN EFI_TCP4_PROTOCOL *This\r | |
486 | );\r | |
487 | \r | |
488 | #endif\r |