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772db4bb | 1 | /** @file\r |
2 | \r | |
7648748e | 3 | Copyright (c) 2005 - 2016, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 4 | This program and the accompanying materials\r |
772db4bb | 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 | |
772db4bb | 12 | **/\r |
13 | \r | |
14 | #include "Ip4Impl.h"\r | |
15 | \r | |
705f53a9 | 16 | EFI_IPSEC2_PROTOCOL *mIpSec = NULL;\r |
a1503a32 | 17 | \r |
5405e9a6 | 18 | /**\r |
19 | Gets the current operational settings for this instance of the EFI IPv4 Protocol driver.\r | |
e2851998 | 20 | \r |
5405e9a6 | 21 | The GetModeData() function returns the current operational mode data for this\r |
22 | driver instance. The data fields in EFI_IP4_MODE_DATA are read only. This\r | |
23 | function is used optionally to retrieve the operational mode data of underlying\r | |
24 | networks or drivers.\r | |
25 | \r | |
3e8c18da | 26 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
27 | @param[out] Ip4ModeData Pointer to the EFI IPv4 Protocol mode data structure.\r | |
28 | @param[out] MnpConfigData Pointer to the managed network configuration data structure.\r | |
29 | @param[out] SnpModeData Pointer to the simple network mode data structure.\r | |
5405e9a6 | 30 | \r |
31 | @retval EFI_SUCCESS The operation completed successfully.\r | |
32 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
33 | @retval EFI_OUT_OF_RESOURCES The required mode data could not be allocated.\r | |
772db4bb | 34 | \r |
5405e9a6 | 35 | **/\r |
36 | EFI_STATUS\r | |
37 | EFIAPI\r | |
38 | EfiIp4GetModeData (\r | |
39 | IN CONST EFI_IP4_PROTOCOL *This,\r | |
24af132f | 40 | OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL,\r |
41 | OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,\r | |
5405e9a6 | 42 | OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL\r |
43 | );\r | |
e2851998 | 44 | \r |
772db4bb | 45 | /**\r |
5405e9a6 | 46 | Assigns an IPv4 address and subnet mask to this EFI IPv4 Protocol driver instance.\r |
e2851998 | 47 | \r |
5405e9a6 | 48 | The Configure() function is used to set, change, or reset the operational\r |
49 | parameters and filter settings for this EFI IPv4 Protocol instance. Until these\r | |
50 | parameters have been set, no network traffic can be sent or received by this\r | |
51 | instance. Once the parameters have been reset (by calling this function with\r | |
52 | IpConfigData set to NULL), no more traffic can be sent or received until these\r | |
53 | parameters have been set again. Each EFI IPv4 Protocol instance can be started\r | |
54 | and stopped independently of each other by enabling or disabling their receive\r | |
55 | filter settings with the Configure() function.\r | |
e2851998 | 56 | \r |
5405e9a6 | 57 | When IpConfigData.UseDefaultAddress is set to FALSE, the new station address will\r |
58 | be appended as an alias address into the addresses list in the EFI IPv4 Protocol\r | |
59 | driver. While set to TRUE, Configure() will trigger the EFI_IP4_CONFIG_PROTOCOL\r | |
60 | to retrieve the default IPv4 address if it is not available yet. Clients could\r | |
61 | frequently call GetModeData() to check the status to ensure that the default IPv4\r | |
62 | address is ready.\r | |
e2851998 | 63 | \r |
5405e9a6 | 64 | If operational parameters are reset or changed, any pending transmit and receive\r |
65 | requests will be cancelled. Their completion token status will be set to EFI_ABORTED\r | |
66 | and their events will be signaled.\r | |
67 | \r | |
3e8c18da | 68 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
69 | @param[in] IpConfigData Pointer to the EFI IPv4 Protocol configuration data structure.\r | |
5405e9a6 | 70 | \r |
71 | @retval EFI_SUCCESS The driver instance was successfully opened.\r | |
72 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
73 | RARP, etc.) is not finished yet.\r | |
74 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
75 | @retval EFI_UNSUPPORTED One or more of the following conditions is TRUE:\r | |
76 | A configuration protocol (DHCP, BOOTP, RARP, etc.) could\r | |
77 | not be located when clients choose to use the default IPv4\r | |
78 | address. This EFI IPv4 Protocol implementation does not\r | |
79 | support this requested filter or timeout setting.\r | |
80 | @retval EFI_OUT_OF_RESOURCES The EFI IPv4 Protocol driver instance data could not be allocated.\r | |
81 | @retval EFI_ALREADY_STARTED The interface is already open and must be stopped before the\r | |
82 | IPv4 address or subnet mask can be changed. The interface must\r | |
83 | also be stopped when switching to/from raw packet mode.\r | |
84 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The EFI IPv4\r | |
85 | Protocol driver instance is not opened.\r | |
772db4bb | 86 | \r |
5405e9a6 | 87 | **/\r |
88 | EFI_STATUS\r | |
89 | EFIAPI\r | |
90 | EfiIp4Configure (\r | |
91 | IN EFI_IP4_PROTOCOL *This,\r | |
92 | IN EFI_IP4_CONFIG_DATA *IpConfigData OPTIONAL\r | |
93 | );\r | |
e2851998 | 94 | \r |
5405e9a6 | 95 | /**\r |
96 | Joins and leaves multicast groups.\r | |
e2851998 | 97 | \r |
5405e9a6 | 98 | The Groups() function is used to join and leave multicast group sessions. Joining\r |
99 | a group will enable reception of matching multicast packets. Leaving a group will\r | |
100 | disable the multicast packet reception.\r | |
e2851998 | 101 | \r |
5405e9a6 | 102 | If JoinFlag is FALSE and GroupAddress is NULL, all joined groups will be left.\r |
103 | \r | |
3e8c18da | 104 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
105 | @param[in] JoinFlag Set to TRUE to join the multicast group session and FALSE to leave.\r | |
106 | @param[in] GroupAddress Pointer to the IPv4 multicast address.\r | |
5405e9a6 | 107 | \r |
108 | @retval EFI_SUCCESS The operation completed successfully.\r | |
109 | @retval EFI_INVALID_PARAMETER One or more of the following is TRUE:\r | |
110 | - This is NULL.\r | |
111 | - JoinFlag is TRUE and GroupAddress is NULL.\r | |
112 | - GroupAddress is not NULL and *GroupAddress is\r | |
113 | not a multicast IPv4 address.\r | |
114 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
115 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
116 | RARP, etc.) is not finished yet.\r | |
117 | @retval EFI_OUT_OF_RESOURCES System resources could not be allocated.\r | |
118 | @retval EFI_UNSUPPORTED This EFI IPv4 Protocol implementation does not support multicast groups.\r | |
119 | @retval EFI_ALREADY_STARTED The group address is already in the group table (when\r | |
120 | JoinFlag is TRUE).\r | |
121 | @retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is FALSE).\r | |
122 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
772db4bb | 123 | \r |
5405e9a6 | 124 | **/\r |
125 | EFI_STATUS\r | |
126 | EFIAPI\r | |
127 | EfiIp4Groups (\r | |
128 | IN EFI_IP4_PROTOCOL *This,\r | |
129 | IN BOOLEAN JoinFlag,\r | |
130 | IN EFI_IPv4_ADDRESS *GroupAddress OPTIONAL\r | |
131 | );\r | |
e2851998 | 132 | \r |
5405e9a6 | 133 | /**\r |
134 | Adds and deletes routing table entries.\r | |
135 | \r | |
136 | The Routes() function adds a route to or deletes a route from the routing table.\r | |
e2851998 | 137 | \r |
5405e9a6 | 138 | Routes are determined by comparing the SubnetAddress with the destination IPv4\r |
139 | address arithmetically AND-ed with the SubnetMask. The gateway address must be\r | |
140 | on the same subnet as the configured station address.\r | |
e2851998 | 141 | \r |
5405e9a6 | 142 | The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.\r |
143 | The default route matches all destination IPv4 addresses that do not match any\r | |
144 | other routes.\r | |
e2851998 | 145 | \r |
5405e9a6 | 146 | A GatewayAddress that is zero is a nonroute. Packets are sent to the destination\r |
147 | IP address if it can be found in the ARP cache or on the local subnet. One automatic\r | |
148 | nonroute entry will be inserted into the routing table for outgoing packets that\r | |
149 | are addressed to a local subnet (gateway address of 0.0.0.0).\r | |
e2851998 | 150 | \r |
5405e9a6 | 151 | Each EFI IPv4 Protocol instance has its own independent routing table. Those EFI\r |
152 | IPv4 Protocol instances that use the default IPv4 address will also have copies\r | |
153 | of the routing table that was provided by the EFI_IP4_CONFIG_PROTOCOL, and these\r | |
154 | copies will be updated whenever the EIF IPv4 Protocol driver reconfigures its\r | |
155 | instances. As a result, client modification to the routing table will be lost.\r | |
156 | \r | |
3e8c18da | 157 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
158 | @param[in] DeleteRoute Set to TRUE to delete this route from the routing table. Set to\r | |
159 | FALSE to add this route to the routing table. SubnetAddress\r | |
160 | and SubnetMask are used as the key to each route entry.\r | |
161 | @param[in] SubnetAddress The address of the subnet that needs to be routed.\r | |
162 | @param[in] SubnetMask The subnet mask of SubnetAddress.\r | |
163 | @param[in] GatewayAddress The unicast gateway IPv4 address for this route.\r | |
5405e9a6 | 164 | \r |
165 | @retval EFI_SUCCESS The operation completed successfully.\r | |
166 | @retval EFI_NOT_STARTED The driver instance has not been started.\r | |
167 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
168 | RARP, etc.) is not finished yet.\r | |
169 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
170 | - This is NULL.\r | |
171 | - SubnetAddress is NULL.\r | |
172 | - SubnetMask is NULL.\r | |
173 | - GatewayAddress is NULL.\r | |
174 | - *SubnetAddress is not a valid subnet address.\r | |
175 | - *SubnetMask is not a valid subnet mask.\r | |
176 | - *GatewayAddress is not a valid unicast IPv4 address.\r | |
177 | @retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table.\r | |
178 | @retval EFI_NOT_FOUND This route is not in the routing table (when DeleteRoute is TRUE).\r | |
179 | @retval EFI_ACCESS_DENIED The route is already defined in the routing table (when\r | |
180 | DeleteRoute is FALSE).\r | |
e2851998 | 181 | \r |
5405e9a6 | 182 | **/\r |
183 | EFI_STATUS\r | |
184 | EFIAPI\r | |
185 | EfiIp4Routes (\r | |
186 | IN EFI_IP4_PROTOCOL *This,\r | |
187 | IN BOOLEAN DeleteRoute,\r | |
188 | IN EFI_IPv4_ADDRESS *SubnetAddress,\r | |
189 | IN EFI_IPv4_ADDRESS *SubnetMask,\r | |
190 | IN EFI_IPv4_ADDRESS *GatewayAddress\r | |
191 | );\r | |
e2851998 | 192 | \r |
5405e9a6 | 193 | /**\r |
194 | Places outgoing data packets into the transmit queue.\r | |
195 | \r | |
196 | The Transmit() function places a sending request in the transmit queue of this\r | |
197 | EFI IPv4 Protocol instance. Whenever the packet in the token is sent out or some\r | |
198 | errors occur, the event in the token will be signaled and the status is updated.\r | |
199 | \r | |
3e8c18da | 200 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
201 | @param[in] Token Pointer to the transmit token.\r | |
5405e9a6 | 202 | \r |
203 | @retval EFI_SUCCESS The data has been queued for transmission.\r | |
204 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
205 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
206 | RARP, etc.) is not finished yet.\r | |
207 | @retval EFI_INVALID_PARAMETER One or more pameters are invalid.\r | |
208 | @retval EFI_ACCESS_DENIED The transmit completion token with the same Token.Event\r | |
209 | was already in the transmit queue.\r | |
210 | @retval EFI_NOT_READY The completion token could not be queued because the transmit\r | |
e2851998 | 211 | queue is full.\r |
5405e9a6 | 212 | @retval EFI_NOT_FOUND Not route is found to destination address.\r |
213 | @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.\r | |
214 | @retval EFI_BUFFER_TOO_SMALL Token.Packet.TxData.TotalDataLength is too\r | |
215 | short to transmit.\r | |
216 | @retval EFI_BAD_BUFFER_SIZE The length of the IPv4 header + option length + total data length is\r | |
217 | greater than MTU (or greater than the maximum packet size if\r | |
218 | Token.Packet.TxData.OverrideData.\r | |
219 | DoNotFragment is TRUE.)\r | |
220 | \r | |
221 | **/\r | |
222 | EFI_STATUS\r | |
223 | EFIAPI\r | |
224 | EfiIp4Transmit (\r | |
225 | IN EFI_IP4_PROTOCOL *This,\r | |
226 | IN EFI_IP4_COMPLETION_TOKEN *Token\r | |
227 | );\r | |
e2851998 | 228 | \r |
5405e9a6 | 229 | /**\r |
230 | Places a receiving request into the receiving queue.\r | |
e2851998 | 231 | \r |
5405e9a6 | 232 | The Receive() function places a completion token into the receive packet queue.\r |
233 | This function is always asynchronous.\r | |
e2851998 | 234 | \r |
5405e9a6 | 235 | The Token.Event field in the completion token must be filled in by the caller\r |
236 | and cannot be NULL. When the receive operation completes, the EFI IPv4 Protocol\r | |
237 | driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event\r | |
238 | is signaled.\r | |
239 | \r | |
3e8c18da | 240 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
241 | @param[in] Token Pointer to a token that is associated with the receive data descriptor.\r | |
5405e9a6 | 242 | \r |
243 | @retval EFI_SUCCESS The receive completion token was cached.\r | |
244 | @retval EFI_NOT_STARTED This EFI IPv4 Protocol instance has not been started.\r | |
245 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP, RARP, etc.)\r | |
246 | is not finished yet.\r | |
247 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
248 | - This is NULL.\r | |
249 | - Token is NULL.\r | |
250 | - Token.Event is NULL.\r | |
251 | @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system\r | |
252 | resources (usually memory).\r | |
253 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
254 | The EFI IPv4 Protocol instance has been reset to startup defaults.\r | |
255 | EFI_ACCESS_DENIED The receive completion token with the same Token.Event was already\r | |
256 | in the receive queue.\r | |
257 | @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full.\r | |
258 | @retval EFI_ICMP_ERROR An ICMP error packet was received.\r | |
259 | \r | |
260 | **/\r | |
261 | EFI_STATUS\r | |
262 | EFIAPI\r | |
263 | EfiIp4Receive (\r | |
264 | IN EFI_IP4_PROTOCOL *This,\r | |
265 | IN EFI_IP4_COMPLETION_TOKEN *Token\r | |
266 | );\r | |
e2851998 | 267 | \r |
5405e9a6 | 268 | /**\r |
269 | Abort an asynchronous transmit or receive request.\r | |
e2851998 | 270 | \r |
5405e9a6 | 271 | The Cancel() function is used to abort a pending transmit or receive request.\r |
272 | If the token is in the transmit or receive request queues, after calling this\r | |
273 | function, Token->Status will be set to EFI_ABORTED and then Token->Event will\r | |
274 | be signaled. If the token is not in one of the queues, which usually means the\r | |
275 | asynchronous operation has completed, this function will not signal the token\r | |
276 | and EFI_NOT_FOUND is returned.\r | |
277 | \r | |
3e8c18da | 278 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
279 | @param[in] Token Pointer to a token that has been issued by\r | |
280 | EFI_IP4_PROTOCOL.Transmit() or\r | |
281 | EFI_IP4_PROTOCOL.Receive(). If NULL, all pending\r | |
282 | tokens are aborted. Type EFI_IP4_COMPLETION_TOKEN is\r | |
283 | defined in EFI_IP4_PROTOCOL.Transmit().\r | |
5405e9a6 | 284 | \r |
285 | @retval EFI_SUCCESS The asynchronous I/O request was aborted and\r | |
286 | Token.->Event was signaled. When Token is NULL, all\r | |
287 | pending requests were aborted and their events were signaled.\r | |
288 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
289 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
290 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
291 | RARP, etc.) is not finished yet.\r | |
292 | @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was\r | |
293 | not found in the transmit or receive queue. It has either completed\r | |
294 | or was not issued by Transmit() and Receive().\r | |
295 | \r | |
296 | **/\r | |
297 | EFI_STATUS\r | |
298 | EFIAPI\r | |
299 | EfiIp4Cancel (\r | |
300 | IN EFI_IP4_PROTOCOL *This,\r | |
301 | IN EFI_IP4_COMPLETION_TOKEN *Token OPTIONAL\r | |
302 | );\r | |
e2851998 | 303 | \r |
5405e9a6 | 304 | /**\r |
305 | Polls for incoming data packets and processes outgoing data packets.\r | |
e2851998 | 306 | \r |
5405e9a6 | 307 | The Poll() function polls for incoming data packets and processes outgoing data\r |
308 | packets. Network drivers and applications can call the EFI_IP4_PROTOCOL.Poll()\r | |
309 | function to increase the rate that data packets are moved between the communications\r | |
310 | device and the transmit and receive queues.\r | |
e2851998 | 311 | \r |
5405e9a6 | 312 | In some systems the periodic timer event may not poll the underlying communications\r |
313 | device fast enough to transmit and/or receive all data packets without missing\r | |
314 | incoming packets or dropping outgoing packets. Drivers and applications that are\r | |
315 | experiencing packet loss should try calling the EFI_IP4_PROTOCOL.Poll() function\r | |
316 | more often.\r | |
317 | \r | |
3e8c18da | 318 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
5405e9a6 | 319 | \r |
320 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
321 | @retval EFI_NOT_STARTED This EFI IPv4 Protocol instance has not been started.\r | |
322 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
323 | RARP, etc.) is not finished yet.\r | |
324 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
325 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
326 | @retval EFI_NOT_READY No incoming or outgoing data is processed.\r | |
327 | @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive queue.\r | |
328 | Consider increasing the polling rate.\r | |
329 | \r | |
330 | **/\r | |
331 | EFI_STATUS\r | |
332 | EFIAPI\r | |
333 | EfiIp4Poll (\r | |
334 | IN EFI_IP4_PROTOCOL *This\r | |
335 | );\r | |
336 | \r | |
337 | EFI_IP4_PROTOCOL\r | |
338 | mEfiIp4ProtocolTemplete = {\r | |
339 | EfiIp4GetModeData,\r | |
340 | EfiIp4Configure,\r | |
341 | EfiIp4Groups,\r | |
342 | EfiIp4Routes,\r | |
343 | EfiIp4Transmit,\r | |
344 | EfiIp4Receive,\r | |
345 | EfiIp4Cancel,\r | |
346 | EfiIp4Poll\r | |
347 | };\r | |
348 | \r | |
349 | /**\r | |
350 | Gets the current operational settings for this instance of the EFI IPv4 Protocol driver.\r | |
e2851998 | 351 | \r |
5405e9a6 | 352 | The GetModeData() function returns the current operational mode data for this\r |
353 | driver instance. The data fields in EFI_IP4_MODE_DATA are read only. This\r | |
354 | function is used optionally to retrieve the operational mode data of underlying\r | |
355 | networks or drivers.\r | |
356 | \r | |
3e8c18da | 357 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
358 | @param[out] Ip4ModeData Pointer to the EFI IPv4 Protocol mode data structure.\r | |
359 | @param[out] MnpConfigData Pointer to the managed network configuration data structure.\r | |
360 | @param[out] SnpModeData Pointer to the simple network mode data structure.\r | |
5405e9a6 | 361 | \r |
362 | @retval EFI_SUCCESS The operation completed successfully.\r | |
363 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
364 | @retval EFI_OUT_OF_RESOURCES The required mode data could not be allocated.\r | |
772db4bb | 365 | \r |
366 | **/\r | |
772db4bb | 367 | EFI_STATUS\r |
368 | EFIAPI\r | |
369 | EfiIp4GetModeData (\r | |
370 | IN CONST EFI_IP4_PROTOCOL *This,\r | |
24af132f | 371 | OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL,\r |
372 | OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,\r | |
772db4bb | 373 | OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL\r |
374 | )\r | |
375 | {\r | |
376 | IP4_PROTOCOL *IpInstance;\r | |
377 | IP4_SERVICE *IpSb;\r | |
378 | EFI_IP4_CONFIG_DATA *Config;\r | |
379 | EFI_STATUS Status;\r | |
380 | EFI_TPL OldTpl;\r | |
381 | IP4_ADDR Ip;\r | |
382 | \r | |
383 | if (This == NULL) {\r | |
384 | return EFI_INVALID_PARAMETER;\r | |
385 | }\r | |
386 | \r | |
e48e37fc | 387 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 388 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r |
389 | IpSb = IpInstance->Service;\r | |
390 | \r | |
391 | if (Ip4ModeData != NULL) {\r | |
392 | //\r | |
393 | // IsStarted is "whether the EfiIp4Configure has been called".\r | |
394 | // IsConfigured is "whether the station address has been configured"\r | |
395 | //\r | |
396 | Ip4ModeData->IsStarted = (BOOLEAN)(IpInstance->State == IP4_STATE_CONFIGED);\r | |
687a2e5f | 397 | CopyMem (&Ip4ModeData->ConfigData, &IpInstance->ConfigData, sizeof (Ip4ModeData->ConfigData));\r |
772db4bb | 398 | Ip4ModeData->IsConfigured = FALSE;\r |
399 | \r | |
400 | Ip4ModeData->GroupCount = IpInstance->GroupCount;\r | |
401 | Ip4ModeData->GroupTable = (EFI_IPv4_ADDRESS *) IpInstance->Groups;\r | |
402 | \r | |
403 | Ip4ModeData->IcmpTypeCount = 23;\r | |
404 | Ip4ModeData->IcmpTypeList = mIp4SupportedIcmp;\r | |
405 | \r | |
406 | Ip4ModeData->RouteTable = NULL;\r | |
407 | Ip4ModeData->RouteCount = 0;\r | |
408 | \r | |
a1503a32 | 409 | Ip4ModeData->MaxPacketSize = IpSb->MaxPacketSize;\r |
410 | \r | |
772db4bb | 411 | //\r |
412 | // return the current station address for this IP child. So,\r | |
413 | // the user can get the default address through this. Some\r | |
414 | // application wants to know it station address even it is\r | |
415 | // using the default one, such as a ftp server.\r | |
416 | //\r | |
417 | if (Ip4ModeData->IsStarted) {\r | |
418 | Config = &Ip4ModeData->ConfigData;\r | |
419 | \r | |
420 | Ip = HTONL (IpInstance->Interface->Ip);\r | |
e48e37fc | 421 | CopyMem (&Config->StationAddress, &Ip, sizeof (EFI_IPv4_ADDRESS));\r |
772db4bb | 422 | \r |
423 | Ip = HTONL (IpInstance->Interface->SubnetMask);\r | |
e48e37fc | 424 | CopyMem (&Config->SubnetMask, &Ip, sizeof (EFI_IPv4_ADDRESS));\r |
772db4bb | 425 | \r |
426 | Ip4ModeData->IsConfigured = IpInstance->Interface->Configured;\r | |
427 | \r | |
428 | //\r | |
429 | // Build a EFI route table for user from the internal route table.\r | |
430 | //\r | |
431 | Status = Ip4BuildEfiRouteTable (IpInstance);\r | |
432 | \r | |
433 | if (EFI_ERROR (Status)) {\r | |
e48e37fc | 434 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 435 | return Status;\r |
436 | }\r | |
437 | \r | |
438 | Ip4ModeData->RouteTable = IpInstance->EfiRouteTable;\r | |
439 | Ip4ModeData->RouteCount = IpInstance->EfiRouteCount;\r | |
440 | }\r | |
441 | }\r | |
442 | \r | |
dd29f3ed | 443 | //\r |
444 | // Get fresh mode data from MNP, since underlying media status may change\r | |
445 | //\r | |
446 | Status = IpSb->Mnp->GetModeData (IpSb->Mnp, MnpConfigData, SnpModeData);\r | |
772db4bb | 447 | \r |
e48e37fc | 448 | gBS->RestoreTPL (OldTpl);\r |
dd29f3ed | 449 | return Status;\r |
772db4bb | 450 | }\r |
451 | \r | |
452 | \r | |
453 | /**\r | |
454 | Config the MNP parameter used by IP. The IP driver use one MNP\r | |
455 | child to transmit/receive frames. By default, it configures MNP\r | |
456 | to receive unicast/multicast/broadcast. And it will enable/disable\r | |
457 | the promiscous receive according to whether there is IP child\r | |
5405e9a6 | 458 | enable that or not. If Force is FALSE, it will iterate through\r |
772db4bb | 459 | all the IP children to check whether the promiscuous receive\r |
460 | setting has been changed. If it hasn't been changed, it won't\r | |
5405e9a6 | 461 | reconfigure the MNP. If Force is TRUE, the MNP is configured no\r |
772db4bb | 462 | matter whether that is changed or not.\r |
463 | \r | |
3e8c18da | 464 | @param[in] IpSb The IP4 service instance that is to be changed.\r |
465 | @param[in] Force Force the configuration or not.\r | |
772db4bb | 466 | \r |
467 | @retval EFI_SUCCESS The MNP is successfully configured/reconfigured.\r | |
468 | @retval Others Configuration failed.\r | |
469 | \r | |
470 | **/\r | |
471 | EFI_STATUS\r | |
472 | Ip4ServiceConfigMnp (\r | |
473 | IN IP4_SERVICE *IpSb,\r | |
474 | IN BOOLEAN Force\r | |
475 | )\r | |
476 | {\r | |
e48e37fc | 477 | LIST_ENTRY *Entry;\r |
478 | LIST_ENTRY *ProtoEntry;\r | |
772db4bb | 479 | IP4_INTERFACE *IpIf;\r |
480 | IP4_PROTOCOL *IpInstance;\r | |
481 | BOOLEAN Reconfig;\r | |
482 | BOOLEAN PromiscReceive;\r | |
483 | EFI_STATUS Status;\r | |
484 | \r | |
485 | Reconfig = FALSE;\r | |
486 | PromiscReceive = FALSE;\r | |
487 | \r | |
488 | if (!Force) {\r | |
489 | //\r | |
490 | // Iterate through the IP children to check whether promiscuous\r | |
491 | // receive setting has been changed. Update the interface's receive\r | |
492 | // filter also.\r | |
493 | //\r | |
494 | NET_LIST_FOR_EACH (Entry, &IpSb->Interfaces) {\r | |
495 | \r | |
496 | IpIf = NET_LIST_USER_STRUCT (Entry, IP4_INTERFACE, Link);\r | |
497 | IpIf->PromiscRecv = FALSE;\r | |
498 | \r | |
499 | NET_LIST_FOR_EACH (ProtoEntry, &IpIf->IpInstances) {\r | |
500 | IpInstance = NET_LIST_USER_STRUCT (ProtoEntry, IP4_PROTOCOL, AddrLink);\r | |
501 | \r | |
502 | if (IpInstance->ConfigData.AcceptPromiscuous) {\r | |
503 | IpIf->PromiscRecv = TRUE;\r | |
504 | PromiscReceive = TRUE;\r | |
505 | }\r | |
506 | }\r | |
507 | }\r | |
508 | \r | |
509 | //\r | |
510 | // If promiscuous receive isn't changed, it isn't necessary to reconfigure.\r | |
511 | //\r | |
512 | if (PromiscReceive == IpSb->MnpConfigData.EnablePromiscuousReceive) {\r | |
513 | return EFI_SUCCESS;\r | |
514 | }\r | |
515 | \r | |
516 | Reconfig = TRUE;\r | |
517 | IpSb->MnpConfigData.EnablePromiscuousReceive = PromiscReceive;\r | |
518 | }\r | |
519 | \r | |
520 | Status = IpSb->Mnp->Configure (IpSb->Mnp, &IpSb->MnpConfigData);\r | |
521 | \r | |
522 | //\r | |
523 | // recover the original configuration if failed to set the configure.\r | |
524 | //\r | |
525 | if (EFI_ERROR (Status) && Reconfig) {\r | |
687a2e5f | 526 | IpSb->MnpConfigData.EnablePromiscuousReceive = (BOOLEAN) !PromiscReceive;\r |
772db4bb | 527 | }\r |
528 | \r | |
529 | return Status;\r | |
530 | }\r | |
531 | \r | |
532 | \r | |
772db4bb | 533 | /**\r |
534 | Intiialize the IP4_PROTOCOL structure to the unconfigured states.\r | |
535 | \r | |
536 | @param IpSb The IP4 service instance.\r | |
537 | @param IpInstance The IP4 child instance.\r | |
538 | \r | |
772db4bb | 539 | **/\r |
540 | VOID\r | |
541 | Ip4InitProtocol (\r | |
5405e9a6 | 542 | IN IP4_SERVICE *IpSb,\r |
543 | IN OUT IP4_PROTOCOL *IpInstance\r | |
772db4bb | 544 | )\r |
545 | {\r | |
546 | ASSERT ((IpSb != NULL) && (IpInstance != NULL));\r | |
547 | \r | |
e48e37fc | 548 | ZeroMem (IpInstance, sizeof (IP4_PROTOCOL));\r |
772db4bb | 549 | \r |
550 | IpInstance->Signature = IP4_PROTOCOL_SIGNATURE;\r | |
687a2e5f | 551 | CopyMem (&IpInstance->Ip4Proto, &mEfiIp4ProtocolTemplete, sizeof (IpInstance->Ip4Proto));\r |
772db4bb | 552 | IpInstance->State = IP4_STATE_UNCONFIGED;\r |
553 | IpInstance->Service = IpSb;\r | |
554 | \r | |
e48e37fc | 555 | InitializeListHead (&IpInstance->Link);\r |
772db4bb | 556 | NetMapInit (&IpInstance->RxTokens);\r |
557 | NetMapInit (&IpInstance->TxTokens);\r | |
e48e37fc | 558 | InitializeListHead (&IpInstance->Received);\r |
559 | InitializeListHead (&IpInstance->Delivered);\r | |
560 | InitializeListHead (&IpInstance->AddrLink);\r | |
772db4bb | 561 | \r |
e48e37fc | 562 | EfiInitializeLock (&IpInstance->RecycleLock, TPL_NOTIFY);\r |
772db4bb | 563 | }\r |
564 | \r | |
565 | \r | |
566 | /**\r | |
567 | Configure the IP4 child. If the child is already configured,\r | |
568 | change the configuration parameter. Otherwise configure it\r | |
569 | for the first time. The caller should validate the configuration\r | |
570 | before deliver them to it. It also don't do configure NULL.\r | |
571 | \r | |
3e8c18da | 572 | @param[in, out] IpInstance The IP4 child to configure.\r |
573 | @param[in] Config The configure data.\r | |
772db4bb | 574 | \r |
575 | @retval EFI_SUCCESS The IP4 child is successfully configured.\r | |
576 | @retval EFI_DEVICE_ERROR Failed to free the pending transive or to\r | |
577 | configure underlying MNP or other errors.\r | |
578 | @retval EFI_NO_MAPPING The IP4 child is configured to use default\r | |
579 | address, but the default address hasn't been\r | |
580 | configured. The IP4 child doesn't need to be\r | |
581 | reconfigured when default address is configured.\r | |
5405e9a6 | 582 | @retval EFI_OUT_OF_RESOURCES No more memory space is available.\r |
583 | @retval other Other error occurs.\r | |
772db4bb | 584 | \r |
585 | **/\r | |
586 | EFI_STATUS\r | |
587 | Ip4ConfigProtocol (\r | |
5405e9a6 | 588 | IN OUT IP4_PROTOCOL *IpInstance,\r |
589 | IN EFI_IP4_CONFIG_DATA *Config\r | |
772db4bb | 590 | )\r |
591 | {\r | |
592 | IP4_SERVICE *IpSb;\r | |
593 | IP4_INTERFACE *IpIf;\r | |
594 | EFI_STATUS Status;\r | |
595 | IP4_ADDR Ip;\r | |
596 | IP4_ADDR Netmask;\r | |
216f7970 | 597 | EFI_ARP_PROTOCOL *Arp;\r |
772db4bb | 598 | \r |
599 | IpSb = IpInstance->Service;\r | |
600 | \r | |
601 | //\r | |
602 | // User is changing packet filters. It must be stopped\r | |
603 | // before the station address can be changed.\r | |
604 | //\r | |
605 | if (IpInstance->State == IP4_STATE_CONFIGED) {\r | |
606 | //\r | |
607 | // Cancel all the pending transmit/receive from upper layer\r | |
608 | //\r | |
609 | Status = Ip4Cancel (IpInstance, NULL);\r | |
610 | \r | |
611 | if (EFI_ERROR (Status)) {\r | |
612 | return EFI_DEVICE_ERROR;\r | |
613 | }\r | |
614 | \r | |
687a2e5f | 615 | CopyMem (&IpInstance->ConfigData, Config, sizeof (IpInstance->ConfigData));\r |
772db4bb | 616 | return EFI_SUCCESS;\r |
617 | }\r | |
618 | \r | |
619 | //\r | |
620 | // Configure a fresh IP4 protocol instance. Create a route table.\r | |
621 | // Each IP child has its own route table, which may point to the\r | |
622 | // default table if it is using default address.\r | |
623 | //\r | |
624 | Status = EFI_OUT_OF_RESOURCES;\r | |
625 | IpInstance->RouteTable = Ip4CreateRouteTable ();\r | |
626 | \r | |
627 | if (IpInstance->RouteTable == NULL) {\r | |
628 | return Status;\r | |
629 | }\r | |
630 | \r | |
631 | //\r | |
632 | // Set up the interface.\r | |
633 | //\r | |
e48e37fc | 634 | CopyMem (&Ip, &Config->StationAddress, sizeof (IP4_ADDR));\r |
635 | CopyMem (&Netmask, &Config->SubnetMask, sizeof (IP4_ADDR));\r | |
772db4bb | 636 | \r |
637 | Ip = NTOHL (Ip);\r | |
638 | Netmask = NTOHL (Netmask);\r | |
639 | \r | |
640 | if (!Config->UseDefaultAddress) {\r | |
641 | //\r | |
642 | // Find whether there is already an interface with the same\r | |
643 | // station address. All the instances with the same station\r | |
644 | // address shares one interface.\r | |
645 | //\r | |
646 | IpIf = Ip4FindStationAddress (IpSb, Ip, Netmask);\r | |
647 | \r | |
648 | if (IpIf != NULL) {\r | |
649 | NET_GET_REF (IpIf);\r | |
650 | \r | |
651 | } else {\r | |
652 | IpIf = Ip4CreateInterface (IpSb->Mnp, IpSb->Controller, IpSb->Image);\r | |
653 | \r | |
654 | if (IpIf == NULL) {\r | |
655 | goto ON_ERROR;\r | |
656 | }\r | |
657 | \r | |
658 | Status = Ip4SetAddress (IpIf, Ip, Netmask);\r | |
659 | \r | |
660 | if (EFI_ERROR (Status)) {\r | |
661 | Status = EFI_DEVICE_ERROR;\r | |
662 | Ip4FreeInterface (IpIf, IpInstance);\r | |
663 | goto ON_ERROR;\r | |
664 | }\r | |
665 | \r | |
e48e37fc | 666 | InsertTailList (&IpSb->Interfaces, &IpIf->Link);\r |
772db4bb | 667 | }\r |
668 | \r | |
669 | //\r | |
670 | // Add a route to this connected network in the route table\r | |
671 | //\r | |
672 | Ip4AddRoute (IpInstance->RouteTable, Ip, Netmask, IP4_ALLZERO_ADDRESS);\r | |
673 | \r | |
674 | } else {\r | |
675 | //\r | |
7648748e | 676 | // Use the default address. Check the state.\r |
772db4bb | 677 | //\r |
678 | if (IpSb->State == IP4_SERVICE_UNSTARTED) {\r | |
923473ed JW |
679 | Status = Ip4StartAutoConfig (&IpSb->Ip4Config2Instance);\r |
680 | \r | |
681 | if (EFI_ERROR (Status)) {\r | |
682 | goto ON_ERROR;\r | |
683 | }\r | |
772db4bb | 684 | }\r |
685 | \r | |
686 | IpIf = IpSb->DefaultInterface;\r | |
687 | NET_GET_REF (IpSb->DefaultInterface);\r | |
688 | \r | |
689 | //\r | |
690 | // If default address is used, so is the default route table.\r | |
691 | // Any route set by the instance has the precedence over the\r | |
692 | // routes in the default route table. Link the default table\r | |
693 | // after the instance's table. Routing will search the local\r | |
694 | // table first.\r | |
695 | //\r | |
696 | NET_GET_REF (IpSb->DefaultRouteTable);\r | |
697 | IpInstance->RouteTable->Next = IpSb->DefaultRouteTable;\r | |
698 | }\r | |
699 | \r | |
700 | IpInstance->Interface = IpIf;\r | |
216f7970 | 701 | if (IpIf->Arp != NULL) {\r |
702 | Arp = NULL;\r | |
703 | Status = gBS->OpenProtocol (\r | |
704 | IpIf->ArpHandle,\r | |
705 | &gEfiArpProtocolGuid,\r | |
706 | (VOID **) &Arp,\r | |
707 | gIp4DriverBinding.DriverBindingHandle,\r | |
708 | IpInstance->Handle,\r | |
709 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
710 | );\r | |
711 | if (EFI_ERROR (Status)) {\r | |
7648748e | 712 | goto ON_ERROR;\r |
216f7970 | 713 | }\r |
714 | }\r | |
e48e37fc | 715 | InsertTailList (&IpIf->IpInstances, &IpInstance->AddrLink);\r |
772db4bb | 716 | \r |
687a2e5f | 717 | CopyMem (&IpInstance->ConfigData, Config, sizeof (IpInstance->ConfigData));\r |
772db4bb | 718 | IpInstance->State = IP4_STATE_CONFIGED;\r |
719 | \r | |
720 | //\r | |
721 | // Although EFI_NO_MAPPING is an error code, the IP child has been\r | |
722 | // successfully configured and doesn't need reconfiguration when\r | |
723 | // default address is acquired.\r | |
724 | //\r | |
725 | if (Config->UseDefaultAddress && IP4_NO_MAPPING (IpInstance)) {\r | |
726 | return EFI_NO_MAPPING;\r | |
727 | }\r | |
728 | \r | |
729 | return EFI_SUCCESS;\r | |
730 | \r | |
731 | ON_ERROR:\r | |
732 | Ip4FreeRouteTable (IpInstance->RouteTable);\r | |
733 | IpInstance->RouteTable = NULL;\r | |
734 | return Status;\r | |
735 | }\r | |
736 | \r | |
737 | \r | |
738 | /**\r | |
739 | Clean up the IP4 child, release all the resources used by it.\r | |
740 | \r | |
3e8c18da | 741 | @param[in] IpInstance The IP4 child to clean up.\r |
772db4bb | 742 | \r |
1f6729ff | 743 | @retval EFI_SUCCESS The IP4 child is cleaned up.\r |
744 | @retval EFI_DEVICE_ERROR Some resources failed to be released.\r | |
772db4bb | 745 | \r |
746 | **/\r | |
747 | EFI_STATUS\r | |
748 | Ip4CleanProtocol (\r | |
749 | IN IP4_PROTOCOL *IpInstance\r | |
750 | )\r | |
751 | {\r | |
752 | if (EFI_ERROR (Ip4Cancel (IpInstance, NULL))) {\r | |
753 | return EFI_DEVICE_ERROR;\r | |
754 | }\r | |
755 | \r | |
756 | if (EFI_ERROR (Ip4Groups (IpInstance, FALSE, NULL))) {\r | |
757 | return EFI_DEVICE_ERROR;\r | |
758 | }\r | |
759 | \r | |
760 | //\r | |
761 | // Some packets haven't been recycled. It is because either the\r | |
762 | // user forgets to recycle the packets, or because the callback\r | |
763 | // hasn't been called. Just leave it alone.\r | |
764 | //\r | |
e48e37fc | 765 | if (!IsListEmpty (&IpInstance->Delivered)) {\r |
772db4bb | 766 | ;\r |
767 | }\r | |
768 | \r | |
769 | if (IpInstance->Interface != NULL) {\r | |
e48e37fc | 770 | RemoveEntryList (&IpInstance->AddrLink);\r |
216f7970 | 771 | if (IpInstance->Interface->Arp != NULL) {\r |
772 | gBS->CloseProtocol (\r | |
773 | IpInstance->Interface->ArpHandle,\r | |
774 | &gEfiArpProtocolGuid,\r | |
775 | gIp4DriverBinding.DriverBindingHandle,\r | |
776 | IpInstance->Handle\r | |
777 | );\r | |
778 | }\r | |
772db4bb | 779 | Ip4FreeInterface (IpInstance->Interface, IpInstance);\r |
780 | IpInstance->Interface = NULL;\r | |
781 | }\r | |
782 | \r | |
783 | if (IpInstance->RouteTable != NULL) {\r | |
784 | if (IpInstance->RouteTable->Next != NULL) {\r | |
785 | Ip4FreeRouteTable (IpInstance->RouteTable->Next);\r | |
786 | }\r | |
787 | \r | |
788 | Ip4FreeRouteTable (IpInstance->RouteTable);\r | |
789 | IpInstance->RouteTable = NULL;\r | |
790 | }\r | |
791 | \r | |
792 | if (IpInstance->EfiRouteTable != NULL) {\r | |
766c7483 | 793 | FreePool (IpInstance->EfiRouteTable);\r |
772db4bb | 794 | IpInstance->EfiRouteTable = NULL;\r |
795 | IpInstance->EfiRouteCount = 0;\r | |
796 | }\r | |
797 | \r | |
798 | if (IpInstance->Groups != NULL) {\r | |
766c7483 | 799 | FreePool (IpInstance->Groups);\r |
772db4bb | 800 | IpInstance->Groups = NULL;\r |
801 | IpInstance->GroupCount = 0;\r | |
802 | }\r | |
803 | \r | |
804 | NetMapClean (&IpInstance->TxTokens);\r | |
805 | \r | |
806 | NetMapClean (&IpInstance->RxTokens);\r | |
807 | \r | |
808 | return EFI_SUCCESS;\r | |
809 | }\r | |
810 | \r | |
811 | \r | |
812 | /**\r | |
813 | Validate that Ip/Netmask pair is OK to be used as station\r | |
814 | address. Only continuous netmasks are supported. and check\r | |
815 | that StationAddress is a unicast address on the newtwork.\r | |
816 | \r | |
1f6729ff | 817 | @param[in] Ip The IP address to validate.\r |
818 | @param[in] Netmask The netmaks of the IP.\r | |
772db4bb | 819 | \r |
1f6729ff | 820 | @retval TRUE The Ip/Netmask pair is valid.\r |
821 | @retval FALSE The Ip/Netmask pair is invalid.\r | |
772db4bb | 822 | \r |
823 | **/\r | |
824 | BOOLEAN\r | |
825 | Ip4StationAddressValid (\r | |
826 | IN IP4_ADDR Ip,\r | |
827 | IN IP4_ADDR Netmask\r | |
828 | )\r | |
829 | {\r | |
830 | IP4_ADDR NetBrdcastMask;\r | |
831 | INTN Len;\r | |
832 | INTN Type;\r | |
833 | \r | |
834 | //\r | |
835 | // Only support the station address with 0.0.0.0/0 to enable DHCP client.\r | |
836 | //\r | |
837 | if (Netmask == IP4_ALLZERO_ADDRESS) {\r | |
838 | return (BOOLEAN) (Ip == IP4_ALLZERO_ADDRESS);\r | |
839 | }\r | |
840 | \r | |
841 | //\r | |
842 | // Only support the continuous net masks\r | |
843 | //\r | |
364f4efa | 844 | if ((Len = NetGetMaskLength (Netmask)) == (IP4_MASK_MAX + 1)) {\r |
772db4bb | 845 | return FALSE;\r |
846 | }\r | |
847 | \r | |
848 | //\r | |
849 | // Station address can't be class D or class E address\r | |
850 | //\r | |
851 | if ((Type = NetGetIpClass (Ip)) > IP4_ADDR_CLASSC) {\r | |
852 | return FALSE;\r | |
853 | }\r | |
854 | \r | |
855 | //\r | |
856 | // Station address can't be subnet broadcast/net broadcast address\r | |
857 | //\r | |
858 | if ((Ip == (Ip & Netmask)) || (Ip == (Ip | ~Netmask))) {\r | |
859 | return FALSE;\r | |
860 | }\r | |
861 | \r | |
2a86ff1c | 862 | NetBrdcastMask = gIp4AllMasks[MIN (Len, Type << 3)];\r |
772db4bb | 863 | \r |
864 | if (Ip == (Ip | ~NetBrdcastMask)) {\r | |
865 | return FALSE;\r | |
866 | }\r | |
867 | \r | |
868 | return TRUE;\r | |
869 | }\r | |
870 | \r | |
871 | \r | |
872 | /**\r | |
5405e9a6 | 873 | Assigns an IPv4 address and subnet mask to this EFI IPv4 Protocol driver instance.\r |
e2851998 | 874 | \r |
5405e9a6 | 875 | The Configure() function is used to set, change, or reset the operational\r |
876 | parameters and filter settings for this EFI IPv4 Protocol instance. Until these\r | |
877 | parameters have been set, no network traffic can be sent or received by this\r | |
878 | instance. Once the parameters have been reset (by calling this function with\r | |
879 | IpConfigData set to NULL), no more traffic can be sent or received until these\r | |
880 | parameters have been set again. Each EFI IPv4 Protocol instance can be started\r | |
881 | and stopped independently of each other by enabling or disabling their receive\r | |
882 | filter settings with the Configure() function.\r | |
e2851998 | 883 | \r |
5405e9a6 | 884 | When IpConfigData.UseDefaultAddress is set to FALSE, the new station address will\r |
885 | be appended as an alias address into the addresses list in the EFI IPv4 Protocol\r | |
886 | driver. While set to TRUE, Configure() will trigger the EFI_IP4_CONFIG_PROTOCOL\r | |
887 | to retrieve the default IPv4 address if it is not available yet. Clients could\r | |
888 | frequently call GetModeData() to check the status to ensure that the default IPv4\r | |
889 | address is ready.\r | |
e2851998 | 890 | \r |
5405e9a6 | 891 | If operational parameters are reset or changed, any pending transmit and receive\r |
892 | requests will be cancelled. Their completion token status will be set to EFI_ABORTED\r | |
893 | and their events will be signaled.\r | |
894 | \r | |
3e8c18da | 895 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
896 | @param[in] IpConfigData Pointer to the EFI IPv4 Protocol configuration data structure.\r | |
5405e9a6 | 897 | \r |
898 | @retval EFI_SUCCESS The driver instance was successfully opened.\r | |
899 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
900 | RARP, etc.) is not finished yet.\r | |
901 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
902 | @retval EFI_UNSUPPORTED One or more of the following conditions is TRUE:\r | |
903 | A configuration protocol (DHCP, BOOTP, RARP, etc.) could\r | |
904 | not be located when clients choose to use the default IPv4\r | |
905 | address. This EFI IPv4 Protocol implementation does not\r | |
906 | support this requested filter or timeout setting.\r | |
907 | @retval EFI_OUT_OF_RESOURCES The EFI IPv4 Protocol driver instance data could not be allocated.\r | |
908 | @retval EFI_ALREADY_STARTED The interface is already open and must be stopped before the\r | |
909 | IPv4 address or subnet mask can be changed. The interface must\r | |
910 | also be stopped when switching to/from raw packet mode.\r | |
911 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The EFI IPv4\r | |
912 | Protocol driver instance is not opened.\r | |
772db4bb | 913 | \r |
914 | **/\r | |
772db4bb | 915 | EFI_STATUS\r |
916 | EFIAPI\r | |
917 | EfiIp4Configure (\r | |
918 | IN EFI_IP4_PROTOCOL *This,\r | |
919 | IN EFI_IP4_CONFIG_DATA *IpConfigData OPTIONAL\r | |
920 | )\r | |
921 | {\r | |
922 | IP4_PROTOCOL *IpInstance;\r | |
923 | EFI_IP4_CONFIG_DATA *Current;\r | |
924 | EFI_TPL OldTpl;\r | |
925 | EFI_STATUS Status;\r | |
926 | BOOLEAN AddrOk;\r | |
927 | IP4_ADDR IpAddress;\r | |
928 | IP4_ADDR SubnetMask;\r | |
929 | \r | |
930 | //\r | |
931 | // First, validate the parameters\r | |
932 | //\r | |
933 | if (This == NULL) {\r | |
934 | return EFI_INVALID_PARAMETER;\r | |
935 | }\r | |
936 | \r | |
937 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r | |
e48e37fc | 938 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 939 | \r |
940 | //\r | |
941 | // Validate the configuration first.\r | |
942 | //\r | |
943 | if (IpConfigData != NULL) {\r | |
772db4bb | 944 | \r |
e48e37fc | 945 | CopyMem (&IpAddress, &IpConfigData->StationAddress, sizeof (IP4_ADDR));\r |
946 | CopyMem (&SubnetMask, &IpConfigData->SubnetMask, sizeof (IP4_ADDR));\r | |
772db4bb | 947 | \r |
948 | IpAddress = NTOHL (IpAddress);\r | |
949 | SubnetMask = NTOHL (SubnetMask);\r | |
950 | \r | |
951 | //\r | |
952 | // Check whether the station address is a valid unicast address\r | |
953 | //\r | |
954 | if (!IpConfigData->UseDefaultAddress) {\r | |
955 | AddrOk = Ip4StationAddressValid (IpAddress, SubnetMask);\r | |
956 | \r | |
957 | if (!AddrOk) {\r | |
958 | Status = EFI_INVALID_PARAMETER;\r | |
959 | goto ON_EXIT;\r | |
960 | }\r | |
961 | }\r | |
962 | \r | |
963 | //\r | |
964 | // User can only update packet filters when already configured.\r | |
965 | // If it wants to change the station address, it must configure(NULL)\r | |
966 | // the instance first.\r | |
967 | //\r | |
968 | if (IpInstance->State == IP4_STATE_CONFIGED) {\r | |
969 | Current = &IpInstance->ConfigData;\r | |
970 | \r | |
971 | if (Current->UseDefaultAddress != IpConfigData->UseDefaultAddress) {\r | |
972 | Status = EFI_ALREADY_STARTED;\r | |
973 | goto ON_EXIT;\r | |
974 | }\r | |
975 | \r | |
976 | if (!Current->UseDefaultAddress &&\r | |
84b5c78e | 977 | (!EFI_IP4_EQUAL (&Current->StationAddress, &IpConfigData->StationAddress) ||\r |
978 | !EFI_IP4_EQUAL (&Current->SubnetMask, &IpConfigData->SubnetMask))) {\r | |
772db4bb | 979 | Status = EFI_ALREADY_STARTED;\r |
980 | goto ON_EXIT;\r | |
981 | }\r | |
982 | \r | |
983 | if (Current->UseDefaultAddress && IP4_NO_MAPPING (IpInstance)) {\r | |
ae0a0b06 | 984 | Status = EFI_NO_MAPPING;\r |
985 | goto ON_EXIT;\r | |
772db4bb | 986 | }\r |
987 | }\r | |
988 | }\r | |
989 | \r | |
990 | //\r | |
991 | // Configure the instance or clean it up.\r | |
992 | //\r | |
993 | if (IpConfigData != NULL) {\r | |
994 | Status = Ip4ConfigProtocol (IpInstance, IpConfigData);\r | |
995 | } else {\r | |
996 | Status = Ip4CleanProtocol (IpInstance);\r | |
997 | \r | |
998 | //\r | |
75dce340 | 999 | // Don't change the state if it is DESTROY, consider the following\r |
772db4bb | 1000 | // valid sequence: Mnp is unloaded-->Ip Stopped-->Udp Stopped,\r |
1001 | // Configure (ThisIp, NULL). If the state is changed to UNCONFIGED,\r | |
1002 | // the unload fails miserably.\r | |
1003 | //\r | |
1004 | if (IpInstance->State == IP4_STATE_CONFIGED) {\r | |
1005 | IpInstance->State = IP4_STATE_UNCONFIGED;\r | |
1006 | }\r | |
1007 | }\r | |
1008 | \r | |
1009 | //\r | |
1010 | // Update the MNP's configure data. Ip4ServiceConfigMnp will check\r | |
1011 | // whether it is necessary to reconfigure the MNP.\r | |
1012 | //\r | |
1013 | Ip4ServiceConfigMnp (IpInstance->Service, FALSE);\r | |
1014 | \r | |
772db4bb | 1015 | ON_EXIT:\r |
e48e37fc | 1016 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 1017 | return Status;\r |
1018 | \r | |
1019 | }\r | |
1020 | \r | |
1021 | \r | |
1022 | /**\r | |
1023 | Change the IP4 child's multicast setting. The caller\r | |
1024 | should make sure that the parameters is valid.\r | |
1025 | \r | |
3e8c18da | 1026 | @param[in] IpInstance The IP4 child to change the setting.\r |
1f6729ff | 1027 | @param[in] JoinFlag TRUE to join the group, otherwise leave it.\r |
1028 | @param[in] GroupAddress The target group address.\r | |
772db4bb | 1029 | \r |
1f6729ff | 1030 | @retval EFI_ALREADY_STARTED Want to join the group, but already a member of it.\r |
772db4bb | 1031 | @retval EFI_OUT_OF_RESOURCES Failed to allocate some resources.\r |
1f6729ff | 1032 | @retval EFI_DEVICE_ERROR Failed to set the group configuraton.\r |
772db4bb | 1033 | @retval EFI_SUCCESS Successfully updated the group setting.\r |
1034 | @retval EFI_NOT_FOUND Try to leave the group which it isn't a member.\r | |
1035 | \r | |
1036 | **/\r | |
1037 | EFI_STATUS\r | |
1038 | Ip4Groups (\r | |
1039 | IN IP4_PROTOCOL *IpInstance,\r | |
1040 | IN BOOLEAN JoinFlag,\r | |
1041 | IN EFI_IPv4_ADDRESS *GroupAddress OPTIONAL\r | |
1042 | )\r | |
1043 | {\r | |
1044 | IP4_ADDR *Members;\r | |
1045 | IP4_ADDR Group;\r | |
1046 | UINT32 Index;\r | |
1047 | \r | |
1048 | //\r | |
1049 | // Add it to the instance's Groups, and join the group by IGMP.\r | |
1050 | // IpInstance->Groups is in network byte order. IGMP operates in\r | |
1051 | // host byte order\r | |
1052 | //\r | |
1053 | if (JoinFlag) {\r | |
e2851998 | 1054 | //\r |
894d038a | 1055 | // When JoinFlag is TRUE, GroupAddress shouldn't be NULL.\r |
1056 | //\r | |
1057 | ASSERT (GroupAddress != NULL);\r | |
e48e37fc | 1058 | CopyMem (&Group, GroupAddress, sizeof (IP4_ADDR));\r |
772db4bb | 1059 | \r |
1060 | for (Index = 0; Index < IpInstance->GroupCount; Index++) {\r | |
1061 | if (IpInstance->Groups[Index] == Group) {\r | |
1062 | return EFI_ALREADY_STARTED;\r | |
1063 | }\r | |
1064 | }\r | |
1065 | \r | |
1066 | Members = Ip4CombineGroups (IpInstance->Groups, IpInstance->GroupCount, Group);\r | |
1067 | \r | |
1068 | if (Members == NULL) {\r | |
1069 | return EFI_OUT_OF_RESOURCES;\r | |
1070 | }\r | |
1071 | \r | |
1072 | if (EFI_ERROR (Ip4JoinGroup (IpInstance, NTOHL (Group)))) {\r | |
766c7483 | 1073 | FreePool (Members);\r |
772db4bb | 1074 | return EFI_DEVICE_ERROR;\r |
1075 | }\r | |
1076 | \r | |
1077 | if (IpInstance->Groups != NULL) {\r | |
766c7483 | 1078 | FreePool (IpInstance->Groups);\r |
772db4bb | 1079 | }\r |
1080 | \r | |
1081 | IpInstance->Groups = Members;\r | |
1082 | IpInstance->GroupCount++;\r | |
1083 | \r | |
1084 | return EFI_SUCCESS;\r | |
1085 | }\r | |
1086 | \r | |
1087 | //\r | |
1088 | // Leave the group. Leave all the groups if GroupAddress is NULL.\r | |
1089 | // Must iterate from the end to the beginning because the GroupCount\r | |
1090 | // is decreamented each time an address is removed..\r | |
1091 | //\r | |
1092 | for (Index = IpInstance->GroupCount; Index > 0 ; Index--) {\r | |
1093 | Group = IpInstance->Groups[Index - 1];\r | |
1094 | \r | |
84b5c78e | 1095 | if ((GroupAddress == NULL) || EFI_IP4_EQUAL (&Group, GroupAddress)) {\r |
772db4bb | 1096 | if (EFI_ERROR (Ip4LeaveGroup (IpInstance, NTOHL (Group)))) {\r |
1097 | return EFI_DEVICE_ERROR;\r | |
1098 | }\r | |
1099 | \r | |
1100 | Ip4RemoveGroupAddr (IpInstance->Groups, IpInstance->GroupCount, Group);\r | |
1101 | IpInstance->GroupCount--;\r | |
1102 | \r | |
1103 | if (IpInstance->GroupCount == 0) {\r | |
1104 | ASSERT (Index == 1);\r | |
1105 | \r | |
766c7483 | 1106 | FreePool (IpInstance->Groups);\r |
772db4bb | 1107 | IpInstance->Groups = NULL;\r |
1108 | }\r | |
1109 | \r | |
1110 | if (GroupAddress != NULL) {\r | |
1111 | return EFI_SUCCESS;\r | |
1112 | }\r | |
1113 | }\r | |
1114 | }\r | |
1115 | \r | |
1116 | return ((GroupAddress != NULL) ? EFI_NOT_FOUND : EFI_SUCCESS);\r | |
1117 | }\r | |
1118 | \r | |
1119 | \r | |
1120 | /**\r | |
5405e9a6 | 1121 | Joins and leaves multicast groups.\r |
e2851998 | 1122 | \r |
5405e9a6 | 1123 | The Groups() function is used to join and leave multicast group sessions. Joining\r |
1124 | a group will enable reception of matching multicast packets. Leaving a group will\r | |
1125 | disable the multicast packet reception.\r | |
e2851998 | 1126 | \r |
5405e9a6 | 1127 | If JoinFlag is FALSE and GroupAddress is NULL, all joined groups will be left.\r |
1128 | \r | |
3e8c18da | 1129 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
1130 | @param[in] JoinFlag Set to TRUE to join the multicast group session and FALSE to leave.\r | |
1131 | @param[in] GroupAddress Pointer to the IPv4 multicast address.\r | |
5405e9a6 | 1132 | \r |
1133 | @retval EFI_SUCCESS The operation completed successfully.\r | |
1134 | @retval EFI_INVALID_PARAMETER One or more of the following is TRUE:\r | |
1135 | - This is NULL.\r | |
1136 | - JoinFlag is TRUE and GroupAddress is NULL.\r | |
1137 | - GroupAddress is not NULL and *GroupAddress is\r | |
1138 | not a multicast IPv4 address.\r | |
1139 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
1140 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
1141 | RARP, etc.) is not finished yet.\r | |
1142 | @retval EFI_OUT_OF_RESOURCES System resources could not be allocated.\r | |
1143 | @retval EFI_UNSUPPORTED This EFI IPv4 Protocol implementation does not support multicast groups.\r | |
1144 | @retval EFI_ALREADY_STARTED The group address is already in the group table (when\r | |
1145 | JoinFlag is TRUE).\r | |
1146 | @retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is FALSE).\r | |
1147 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
772db4bb | 1148 | \r |
1149 | **/\r | |
772db4bb | 1150 | EFI_STATUS\r |
1151 | EFIAPI\r | |
1152 | EfiIp4Groups (\r | |
1153 | IN EFI_IP4_PROTOCOL *This,\r | |
1154 | IN BOOLEAN JoinFlag,\r | |
1155 | IN EFI_IPv4_ADDRESS *GroupAddress OPTIONAL\r | |
1156 | )\r | |
1157 | {\r | |
1158 | IP4_PROTOCOL *IpInstance;\r | |
1159 | EFI_STATUS Status;\r | |
1160 | EFI_TPL OldTpl;\r | |
1161 | IP4_ADDR McastIp;\r | |
1162 | \r | |
1163 | if ((This == NULL) || (JoinFlag && (GroupAddress == NULL))) {\r | |
1164 | return EFI_INVALID_PARAMETER;\r | |
1165 | }\r | |
1166 | \r | |
1167 | if (GroupAddress != NULL) {\r | |
e48e37fc | 1168 | CopyMem (&McastIp, GroupAddress, sizeof (IP4_ADDR));\r |
772db4bb | 1169 | \r |
1170 | if (!IP4_IS_MULTICAST (NTOHL (McastIp))) {\r | |
1171 | return EFI_INVALID_PARAMETER;\r | |
1172 | }\r | |
1173 | }\r | |
1174 | \r | |
1175 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r | |
e48e37fc | 1176 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 1177 | \r |
1178 | if (IpInstance->State != IP4_STATE_CONFIGED) {\r | |
1179 | Status = EFI_NOT_STARTED;\r | |
1180 | goto ON_EXIT;\r | |
1181 | }\r | |
1182 | \r | |
1183 | if (IpInstance->ConfigData.UseDefaultAddress && IP4_NO_MAPPING (IpInstance)) {\r | |
1184 | Status = EFI_NO_MAPPING;\r | |
1185 | goto ON_EXIT;\r | |
1186 | }\r | |
1187 | \r | |
1188 | Status = Ip4Groups (IpInstance, JoinFlag, GroupAddress);\r | |
1189 | \r | |
1190 | ON_EXIT:\r | |
e48e37fc | 1191 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 1192 | return Status;\r |
1193 | }\r | |
1194 | \r | |
1195 | \r | |
1196 | /**\r | |
5405e9a6 | 1197 | Adds and deletes routing table entries.\r |
1198 | \r | |
1199 | The Routes() function adds a route to or deletes a route from the routing table.\r | |
e2851998 | 1200 | \r |
5405e9a6 | 1201 | Routes are determined by comparing the SubnetAddress with the destination IPv4\r |
1202 | address arithmetically AND-ed with the SubnetMask. The gateway address must be\r | |
1203 | on the same subnet as the configured station address.\r | |
e2851998 | 1204 | \r |
5405e9a6 | 1205 | The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.\r |
1206 | The default route matches all destination IPv4 addresses that do not match any\r | |
1207 | other routes.\r | |
e2851998 | 1208 | \r |
5405e9a6 | 1209 | A GatewayAddress that is zero is a nonroute. Packets are sent to the destination\r |
1210 | IP address if it can be found in the ARP cache or on the local subnet. One automatic\r | |
1211 | nonroute entry will be inserted into the routing table for outgoing packets that\r | |
1212 | are addressed to a local subnet (gateway address of 0.0.0.0).\r | |
e2851998 | 1213 | \r |
5405e9a6 | 1214 | Each EFI IPv4 Protocol instance has its own independent routing table. Those EFI\r |
1215 | IPv4 Protocol instances that use the default IPv4 address will also have copies\r | |
1216 | of the routing table that was provided by the EFI_IP4_CONFIG_PROTOCOL, and these\r | |
1217 | copies will be updated whenever the EIF IPv4 Protocol driver reconfigures its\r | |
1218 | instances. As a result, client modification to the routing table will be lost.\r | |
1219 | \r | |
3e8c18da | 1220 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
1221 | @param[in] DeleteRoute Set to TRUE to delete this route from the routing table. Set to\r | |
1222 | FALSE to add this route to the routing table. SubnetAddress\r | |
1223 | and SubnetMask are used as the key to each route entry.\r | |
1224 | @param[in] SubnetAddress The address of the subnet that needs to be routed.\r | |
1225 | @param[in] SubnetMask The subnet mask of SubnetAddress.\r | |
1226 | @param[in] GatewayAddress The unicast gateway IPv4 address for this route.\r | |
5405e9a6 | 1227 | \r |
1228 | @retval EFI_SUCCESS The operation completed successfully.\r | |
1229 | @retval EFI_NOT_STARTED The driver instance has not been started.\r | |
1230 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
1231 | RARP, etc.) is not finished yet.\r | |
1232 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
1233 | - This is NULL.\r | |
1234 | - SubnetAddress is NULL.\r | |
1235 | - SubnetMask is NULL.\r | |
1236 | - GatewayAddress is NULL.\r | |
1237 | - *SubnetAddress is not a valid subnet address.\r | |
1238 | - *SubnetMask is not a valid subnet mask.\r | |
1239 | - *GatewayAddress is not a valid unicast IPv4 address.\r | |
1240 | @retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table.\r | |
1241 | @retval EFI_NOT_FOUND This route is not in the routing table (when DeleteRoute is TRUE).\r | |
1242 | @retval EFI_ACCESS_DENIED The route is already defined in the routing table (when\r | |
1243 | DeleteRoute is FALSE).\r | |
e2851998 | 1244 | \r |
772db4bb | 1245 | **/\r |
772db4bb | 1246 | EFI_STATUS\r |
1247 | EFIAPI\r | |
1248 | EfiIp4Routes (\r | |
1249 | IN EFI_IP4_PROTOCOL *This,\r | |
1250 | IN BOOLEAN DeleteRoute,\r | |
1251 | IN EFI_IPv4_ADDRESS *SubnetAddress,\r | |
1252 | IN EFI_IPv4_ADDRESS *SubnetMask,\r | |
1253 | IN EFI_IPv4_ADDRESS *GatewayAddress\r | |
1254 | )\r | |
1255 | {\r | |
1256 | IP4_PROTOCOL *IpInstance;\r | |
1257 | IP4_INTERFACE *IpIf;\r | |
1258 | IP4_ADDR Dest;\r | |
1259 | IP4_ADDR Netmask;\r | |
1260 | IP4_ADDR Nexthop;\r | |
1261 | EFI_STATUS Status;\r | |
1262 | EFI_TPL OldTpl;\r | |
1263 | \r | |
1264 | //\r | |
1265 | // First, validate the parameters\r | |
1266 | //\r | |
1267 | if ((This == NULL) || (SubnetAddress == NULL) ||\r | |
1268 | (SubnetMask == NULL) || (GatewayAddress == NULL)) {\r | |
1269 | return EFI_INVALID_PARAMETER;\r | |
1270 | }\r | |
1271 | \r | |
1272 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r | |
e48e37fc | 1273 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 1274 | \r |
1275 | if (IpInstance->State != IP4_STATE_CONFIGED) {\r | |
1276 | Status = EFI_NOT_STARTED;\r | |
1277 | goto ON_EXIT;\r | |
1278 | }\r | |
1279 | \r | |
1280 | if (IpInstance->ConfigData.UseDefaultAddress && IP4_NO_MAPPING (IpInstance)) {\r | |
1281 | Status = EFI_NO_MAPPING;\r | |
1282 | goto ON_EXIT;\r | |
1283 | }\r | |
1284 | \r | |
e48e37fc | 1285 | CopyMem (&Dest, SubnetAddress, sizeof (IP4_ADDR));\r |
1286 | CopyMem (&Netmask, SubnetMask, sizeof (IP4_ADDR));\r | |
1287 | CopyMem (&Nexthop, GatewayAddress, sizeof (IP4_ADDR));\r | |
772db4bb | 1288 | \r |
1289 | Dest = NTOHL (Dest);\r | |
1290 | Netmask = NTOHL (Netmask);\r | |
1291 | Nexthop = NTOHL (Nexthop);\r | |
1292 | \r | |
1293 | IpIf = IpInstance->Interface;\r | |
1294 | \r | |
1295 | if (!IP4_IS_VALID_NETMASK (Netmask)) {\r | |
1296 | Status = EFI_INVALID_PARAMETER;\r | |
1297 | goto ON_EXIT;\r | |
1298 | }\r | |
1299 | \r | |
1300 | //\r | |
1301 | // the gateway address must be a unicast on the connected network if not zero.\r | |
1302 | //\r | |
1303 | if ((Nexthop != IP4_ALLZERO_ADDRESS) &&\r | |
1304 | (!IP4_NET_EQUAL (Nexthop, IpIf->Ip, IpIf->SubnetMask) ||\r | |
1305 | IP4_IS_BROADCAST (Ip4GetNetCast (Nexthop, IpIf)))) {\r | |
1306 | \r | |
1307 | Status = EFI_INVALID_PARAMETER;\r | |
1308 | goto ON_EXIT;\r | |
1309 | }\r | |
1310 | \r | |
1311 | if (DeleteRoute) {\r | |
1312 | Status = Ip4DelRoute (IpInstance->RouteTable, Dest, Netmask, Nexthop);\r | |
1313 | } else {\r | |
1314 | Status = Ip4AddRoute (IpInstance->RouteTable, Dest, Netmask, Nexthop);\r | |
1315 | }\r | |
1316 | \r | |
1317 | ON_EXIT:\r | |
e48e37fc | 1318 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 1319 | return Status;\r |
1320 | }\r | |
1321 | \r | |
1322 | \r | |
1323 | /**\r | |
1324 | Check whether the user's token or event has already\r | |
5405e9a6 | 1325 | been enqueued on IP4's list.\r |
772db4bb | 1326 | \r |
3e8c18da | 1327 | @param[in] Map The container of either user's transmit or receive\r |
1328 | token.\r | |
1f6729ff | 1329 | @param[in] Item Current item to check against.\r |
3e8c18da | 1330 | @param[in] Context The Token to check againist.\r |
772db4bb | 1331 | \r |
1f6729ff | 1332 | @retval EFI_ACCESS_DENIED The token or event has already been enqueued in IP.\r |
772db4bb | 1333 | @retval EFI_SUCCESS The current item isn't the same token/event as the\r |
1334 | context.\r | |
1335 | \r | |
1336 | **/\r | |
772db4bb | 1337 | EFI_STATUS\r |
e798cd87 | 1338 | EFIAPI\r |
772db4bb | 1339 | Ip4TokenExist (\r |
1340 | IN NET_MAP *Map,\r | |
1341 | IN NET_MAP_ITEM *Item,\r | |
1342 | IN VOID *Context\r | |
1343 | )\r | |
1344 | {\r | |
1345 | EFI_IP4_COMPLETION_TOKEN *Token;\r | |
1346 | EFI_IP4_COMPLETION_TOKEN *TokenInItem;\r | |
1347 | \r | |
1348 | Token = (EFI_IP4_COMPLETION_TOKEN *) Context;\r | |
1349 | TokenInItem = (EFI_IP4_COMPLETION_TOKEN *) Item->Key;\r | |
1350 | \r | |
1351 | if ((Token == TokenInItem) || (Token->Event == TokenInItem->Event)) {\r | |
1352 | return EFI_ACCESS_DENIED;\r | |
1353 | }\r | |
1354 | \r | |
1355 | return EFI_SUCCESS;\r | |
1356 | }\r | |
1357 | \r | |
772db4bb | 1358 | /**\r |
1359 | Validate the user's token against current station address.\r | |
1360 | \r | |
216f7970 | 1361 | @param[in] Token User's token to validate.\r |
1362 | @param[in] IpIf The IP4 child's interface.\r | |
1363 | @param[in] RawData Set to TRUE to send unformatted packets.\r | |
772db4bb | 1364 | \r |
216f7970 | 1365 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r |
772db4bb | 1366 | @retval EFI_BAD_BUFFER_SIZE The user's option/data is too long.\r |
216f7970 | 1367 | @retval EFI_SUCCESS The token is valid.\r |
772db4bb | 1368 | \r |
1369 | **/\r | |
772db4bb | 1370 | EFI_STATUS\r |
1371 | Ip4TxTokenValid (\r | |
1372 | IN EFI_IP4_COMPLETION_TOKEN *Token,\r | |
216f7970 | 1373 | IN IP4_INTERFACE *IpIf,\r |
1374 | IN BOOLEAN RawData\r | |
772db4bb | 1375 | )\r |
1376 | {\r | |
1377 | EFI_IP4_TRANSMIT_DATA *TxData;\r | |
1378 | EFI_IP4_OVERRIDE_DATA *Override;\r | |
1379 | IP4_ADDR Src;\r | |
1380 | IP4_ADDR Gateway;\r | |
1381 | UINT32 Offset;\r | |
1382 | UINT32 Index;\r | |
1383 | UINT32 HeadLen;\r | |
1384 | \r | |
1385 | if ((Token == NULL) || (Token->Event == NULL) || (Token->Packet.TxData == NULL)) {\r | |
1386 | return EFI_INVALID_PARAMETER;\r | |
1387 | }\r | |
1388 | \r | |
1389 | TxData = Token->Packet.TxData;\r | |
1390 | \r | |
1391 | //\r | |
216f7970 | 1392 | // Check the fragment table: no empty fragment, and length isn't bogus.\r |
772db4bb | 1393 | //\r |
1394 | if ((TxData->TotalDataLength == 0) || (TxData->FragmentCount == 0)) {\r | |
1395 | return EFI_INVALID_PARAMETER;\r | |
1396 | }\r | |
1397 | \r | |
1398 | Offset = TxData->TotalDataLength;\r | |
1399 | \r | |
216f7970 | 1400 | if (Offset > IP4_MAX_PACKET_SIZE) {\r |
1401 | return EFI_BAD_BUFFER_SIZE;\r | |
1402 | }\r | |
1403 | \r | |
772db4bb | 1404 | for (Index = 0; Index < TxData->FragmentCount; Index++) {\r |
1405 | if ((TxData->FragmentTable[Index].FragmentBuffer == NULL) ||\r | |
1406 | (TxData->FragmentTable[Index].FragmentLength == 0)) {\r | |
1407 | \r | |
1408 | return EFI_INVALID_PARAMETER;\r | |
1409 | }\r | |
1410 | \r | |
1411 | Offset -= TxData->FragmentTable[Index].FragmentLength;\r | |
1412 | }\r | |
1413 | \r | |
1414 | if (Offset != 0) {\r | |
1415 | return EFI_INVALID_PARAMETER;\r | |
1416 | }\r | |
1417 | \r | |
216f7970 | 1418 | //\r |
1419 | // NOTE that OptionsLength/OptionsBuffer/OverrideData are ignored if RawData\r | |
1420 | // is TRUE.\r | |
1421 | //\r | |
1422 | if (RawData) {\r | |
1423 | return EFI_SUCCESS;\r | |
1424 | }\r | |
1425 | \r | |
1426 | //\r | |
1427 | // Check the IP options: no more than 40 bytes and format is OK\r | |
1428 | //\r | |
1429 | if (TxData->OptionsLength != 0) {\r | |
1430 | if ((TxData->OptionsLength > 40) || (TxData->OptionsBuffer == NULL)) {\r | |
1431 | return EFI_INVALID_PARAMETER;\r | |
1432 | }\r | |
1433 | \r | |
1434 | if (!Ip4OptionIsValid (TxData->OptionsBuffer, TxData->OptionsLength, FALSE)) {\r | |
1435 | return EFI_INVALID_PARAMETER;\r | |
1436 | }\r | |
1437 | }\r | |
1438 | \r | |
772db4bb | 1439 | //\r |
1440 | // Check the source and gateway: they must be a valid unicast.\r | |
1441 | // Gateway must also be on the connected network.\r | |
1442 | //\r | |
e2851998 | 1443 | if (TxData->OverrideData != NULL) {\r |
772db4bb | 1444 | Override = TxData->OverrideData;\r |
1445 | \r | |
e48e37fc | 1446 | CopyMem (&Src, &Override->SourceAddress, sizeof (IP4_ADDR));\r |
1447 | CopyMem (&Gateway, &Override->GatewayAddress, sizeof (IP4_ADDR));\r | |
772db4bb | 1448 | \r |
1449 | Src = NTOHL (Src);\r | |
1450 | Gateway = NTOHL (Gateway);\r | |
1451 | \r | |
1452 | if ((NetGetIpClass (Src) > IP4_ADDR_CLASSC) ||\r | |
1453 | (Src == IP4_ALLONE_ADDRESS) ||\r | |
1454 | IP4_IS_BROADCAST (Ip4GetNetCast (Src, IpIf))) {\r | |
1455 | \r | |
1456 | return EFI_INVALID_PARAMETER;\r | |
1457 | }\r | |
1458 | \r | |
1459 | //\r | |
1460 | // If gateway isn't zero, it must be a unicast address, and\r | |
1461 | // on the connected network.\r | |
1462 | //\r | |
1463 | if ((Gateway != IP4_ALLZERO_ADDRESS) &&\r | |
1464 | ((NetGetIpClass (Gateway) > IP4_ADDR_CLASSC) ||\r | |
1465 | !IP4_NET_EQUAL (Gateway, IpIf->Ip, IpIf->SubnetMask) ||\r | |
1466 | IP4_IS_BROADCAST (Ip4GetNetCast (Gateway, IpIf)))) {\r | |
1467 | \r | |
1468 | return EFI_INVALID_PARAMETER;\r | |
1469 | }\r | |
1470 | }\r | |
1471 | \r | |
1472 | //\r | |
1473 | // Check the packet length: Head length and packet length all has a limit\r | |
1474 | //\r | |
1475 | HeadLen = sizeof (IP4_HEAD) + ((TxData->OptionsLength + 3) &~0x03);\r | |
1476 | \r | |
1477 | if ((HeadLen > IP4_MAX_HEADLEN) ||\r | |
1478 | (TxData->TotalDataLength + HeadLen > IP4_MAX_PACKET_SIZE)) {\r | |
1479 | \r | |
1480 | return EFI_BAD_BUFFER_SIZE;\r | |
1481 | }\r | |
1482 | \r | |
1483 | return EFI_SUCCESS;\r | |
1484 | }\r | |
1485 | \r | |
1486 | \r | |
1487 | /**\r | |
1488 | The callback function for the net buffer which wraps the user's\r | |
1489 | transmit token. Although it seems this function is pretty simple,\r | |
1490 | there are some subtle things.\r | |
1491 | When user requests the IP to transmit a packet by passing it a\r | |
1492 | token, the token is wrapped in an IP4_TXTOKEN_WRAP and the data\r | |
1493 | is wrapped in an net buffer. the net buffer's Free function is\r | |
1494 | set to Ip4FreeTxToken. The Token and token wrap are added to the\r | |
1495 | IP child's TxToken map. Then the buffer is passed to Ip4Output for\r | |
1496 | transmission. If something error happened before that, the buffer\r | |
1497 | is freed, which in turn will free the token wrap. The wrap may\r | |
1498 | have been added to the TxToken map or not, and the user's event\r | |
1499 | shouldn't be fired because we are still in the EfiIp4Transmit. If\r | |
1500 | the buffer has been sent by Ip4Output, it should be removed from\r | |
1501 | the TxToken map and user's event signaled. The token wrap and buffer\r | |
1502 | are bound together. Check the comments in Ip4Output for information\r | |
1503 | about IP fragmentation.\r | |
1504 | \r | |
1f6729ff | 1505 | @param[in] Context The token's wrap.\r |
772db4bb | 1506 | \r |
1507 | **/\r | |
772db4bb | 1508 | VOID\r |
e798cd87 | 1509 | EFIAPI\r |
772db4bb | 1510 | Ip4FreeTxToken (\r |
1511 | IN VOID *Context\r | |
1512 | )\r | |
1513 | {\r | |
1514 | IP4_TXTOKEN_WRAP *Wrap;\r | |
1515 | NET_MAP_ITEM *Item;\r | |
1516 | \r | |
1517 | Wrap = (IP4_TXTOKEN_WRAP *) Context;\r | |
1518 | \r | |
a1503a32 | 1519 | //\r |
1520 | // Signal IpSecRecycleEvent to inform IPsec free the memory\r | |
1521 | //\r | |
1522 | if (Wrap->IpSecRecycleSignal != NULL) {\r | |
1523 | gBS->SignalEvent (Wrap->IpSecRecycleSignal);\r | |
1524 | }\r | |
1525 | \r | |
772db4bb | 1526 | //\r |
1527 | // Find the token in the instance's map. EfiIp4Transmit put the\r | |
1528 | // token to the map. If that failed, NetMapFindKey will return NULL.\r | |
1529 | //\r | |
1530 | Item = NetMapFindKey (&Wrap->IpInstance->TxTokens, Wrap->Token);\r | |
1531 | \r | |
1532 | if (Item != NULL) {\r | |
1533 | NetMapRemoveItem (&Wrap->IpInstance->TxTokens, Item, NULL);\r | |
1534 | }\r | |
1535 | \r | |
1536 | if (Wrap->Sent) {\r | |
1537 | gBS->SignalEvent (Wrap->Token->Event);\r | |
36ee91ca | 1538 | \r |
1539 | //\r | |
1540 | // Dispatch the DPC queued by the NotifyFunction of Token->Event.\r | |
1541 | //\r | |
d8d26fb2 | 1542 | DispatchDpc ();\r |
772db4bb | 1543 | }\r |
1544 | \r | |
766c7483 | 1545 | FreePool (Wrap);\r |
772db4bb | 1546 | }\r |
1547 | \r | |
1548 | \r | |
1549 | /**\r | |
1550 | The callback function to Ip4Output to update the transmit status.\r | |
1551 | \r | |
1552 | @param Ip4Instance The Ip4Instance that request the transmit.\r | |
1f6729ff | 1553 | @param Packet The user's transmit request.\r |
1554 | @param IoStatus The result of the transmission.\r | |
1555 | @param Flag Not used during transmission.\r | |
772db4bb | 1556 | @param Context The token's wrap.\r |
1557 | \r | |
772db4bb | 1558 | **/\r |
772db4bb | 1559 | VOID\r |
1560 | Ip4OnPacketSent (\r | |
1561 | IP4_PROTOCOL *Ip4Instance,\r | |
1562 | NET_BUF *Packet,\r | |
1563 | EFI_STATUS IoStatus,\r | |
1564 | UINT32 Flag,\r | |
1565 | VOID *Context\r | |
1566 | )\r | |
1567 | {\r | |
1568 | IP4_TXTOKEN_WRAP *Wrap;\r | |
1569 | \r | |
1570 | //\r | |
1571 | // This is the transmission request from upper layer,\r | |
1572 | // not the IP4 driver itself.\r | |
1573 | //\r | |
1574 | ASSERT (Ip4Instance != NULL);\r | |
1575 | \r | |
1576 | //\r | |
1577 | // The first fragment of the packet has been sent. Update\r | |
1578 | // the token's status. That is, if fragmented, the transmit's\r | |
1579 | // status is the first fragment's status. The Wrap will be\r | |
1580 | // release when all the fragments are release. Check the comments\r | |
1581 | // in Ip4FreeTxToken and Ip4Output for information.\r | |
1582 | //\r | |
1583 | Wrap = (IP4_TXTOKEN_WRAP *) Context;\r | |
1584 | Wrap->Token->Status = IoStatus;\r | |
1585 | \r | |
1586 | NetbufFree (Wrap->Packet);\r | |
1587 | }\r | |
1588 | \r | |
1589 | \r | |
1590 | /**\r | |
5405e9a6 | 1591 | Places outgoing data packets into the transmit queue.\r |
1592 | \r | |
1593 | The Transmit() function places a sending request in the transmit queue of this\r | |
1594 | EFI IPv4 Protocol instance. Whenever the packet in the token is sent out or some\r | |
1595 | errors occur, the event in the token will be signaled and the status is updated.\r | |
1596 | \r | |
3e8c18da | 1597 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
1598 | @param[in] Token Pointer to the transmit token.\r | |
5405e9a6 | 1599 | \r |
1600 | @retval EFI_SUCCESS The data has been queued for transmission.\r | |
1601 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
1602 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
1603 | RARP, etc.) is not finished yet.\r | |
1604 | @retval EFI_INVALID_PARAMETER One or more pameters are invalid.\r | |
1605 | @retval EFI_ACCESS_DENIED The transmit completion token with the same Token.Event\r | |
1606 | was already in the transmit queue.\r | |
1607 | @retval EFI_NOT_READY The completion token could not be queued because the transmit\r | |
e2851998 | 1608 | queue is full.\r |
5405e9a6 | 1609 | @retval EFI_NOT_FOUND Not route is found to destination address.\r |
1610 | @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.\r | |
1611 | @retval EFI_BUFFER_TOO_SMALL Token.Packet.TxData.TotalDataLength is too\r | |
1612 | short to transmit.\r | |
1613 | @retval EFI_BAD_BUFFER_SIZE The length of the IPv4 header + option length + total data length is\r | |
1614 | greater than MTU (or greater than the maximum packet size if\r | |
1615 | Token.Packet.TxData.OverrideData.\r | |
1f6729ff | 1616 | DoNotFragment is TRUE).\r |
772db4bb | 1617 | \r |
1618 | **/\r | |
772db4bb | 1619 | EFI_STATUS\r |
1620 | EFIAPI\r | |
1621 | EfiIp4Transmit (\r | |
1622 | IN EFI_IP4_PROTOCOL *This,\r | |
1623 | IN EFI_IP4_COMPLETION_TOKEN *Token\r | |
1624 | )\r | |
1625 | {\r | |
1626 | IP4_SERVICE *IpSb;\r | |
1627 | IP4_PROTOCOL *IpInstance;\r | |
1628 | IP4_INTERFACE *IpIf;\r | |
1629 | IP4_TXTOKEN_WRAP *Wrap;\r | |
1630 | EFI_IP4_TRANSMIT_DATA *TxData;\r | |
1631 | EFI_IP4_CONFIG_DATA *Config;\r | |
1632 | EFI_IP4_OVERRIDE_DATA *Override;\r | |
1633 | IP4_HEAD Head;\r | |
1634 | IP4_ADDR GateWay;\r | |
1635 | EFI_STATUS Status;\r | |
1636 | EFI_TPL OldTpl;\r | |
1637 | BOOLEAN DontFragment;\r | |
1638 | UINT32 HeadLen;\r | |
216f7970 | 1639 | UINT8 RawHdrLen;\r |
1640 | UINT32 OptionsLength;\r | |
1641 | UINT8 *OptionsBuffer;\r | |
1642 | VOID *FirstFragment;\r | |
772db4bb | 1643 | \r |
1644 | if (This == NULL) {\r | |
1645 | return EFI_INVALID_PARAMETER;\r | |
1646 | }\r | |
1647 | \r | |
1648 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r | |
1649 | \r | |
1650 | if (IpInstance->State != IP4_STATE_CONFIGED) {\r | |
1651 | return EFI_NOT_STARTED;\r | |
1652 | }\r | |
1653 | \r | |
e48e37fc | 1654 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 1655 | \r |
1656 | IpSb = IpInstance->Service;\r | |
1657 | IpIf = IpInstance->Interface;\r | |
1658 | Config = &IpInstance->ConfigData;\r | |
1659 | \r | |
1660 | if (Config->UseDefaultAddress && IP4_NO_MAPPING (IpInstance)) {\r | |
1661 | Status = EFI_NO_MAPPING;\r | |
1662 | goto ON_EXIT;\r | |
1663 | }\r | |
1664 | \r | |
1665 | //\r | |
1666 | // make sure that token is properly formated\r | |
1667 | //\r | |
216f7970 | 1668 | Status = Ip4TxTokenValid (Token, IpIf, Config->RawData);\r |
772db4bb | 1669 | \r |
1670 | if (EFI_ERROR (Status)) {\r | |
1671 | goto ON_EXIT;\r | |
1672 | }\r | |
1673 | \r | |
1674 | //\r | |
1675 | // Check whether the token or signal already existed.\r | |
1676 | //\r | |
1677 | if (EFI_ERROR (NetMapIterate (&IpInstance->TxTokens, Ip4TokenExist, Token))) {\r | |
1678 | Status = EFI_ACCESS_DENIED;\r | |
1679 | goto ON_EXIT;\r | |
1680 | }\r | |
1681 | \r | |
1682 | //\r | |
1683 | // Build the IP header, need to fill in the Tos, TotalLen, Id,\r | |
1684 | // fragment, Ttl, protocol, Src, and Dst.\r | |
1685 | //\r | |
1686 | TxData = Token->Packet.TxData;\r | |
1687 | \r | |
216f7970 | 1688 | FirstFragment = NULL;\r |
772db4bb | 1689 | \r |
216f7970 | 1690 | if (Config->RawData) {\r |
1691 | //\r | |
1692 | // When RawData is TRUE, first buffer in FragmentTable points to a raw\r | |
1693 | // IPv4 fragment including IPv4 header and options.\r | |
1694 | //\r | |
1695 | FirstFragment = TxData->FragmentTable[0].FragmentBuffer;\r | |
1696 | CopyMem (&RawHdrLen, FirstFragment, sizeof (UINT8));\r | |
772db4bb | 1697 | \r |
216f7970 | 1698 | RawHdrLen = (UINT8) (RawHdrLen & 0x0f);\r |
1699 | if (RawHdrLen < 5) {\r | |
098e9f49 FS |
1700 | Status = EFI_INVALID_PARAMETER;\r |
1701 | goto ON_EXIT;\r | |
216f7970 | 1702 | }\r |
1703 | \r | |
1704 | RawHdrLen = (UINT8) (RawHdrLen << 2);\r | |
1705 | \r | |
1706 | CopyMem (&Head, FirstFragment, IP4_MIN_HEADLEN);\r | |
1707 | \r | |
1708 | Ip4NtohHead (&Head);\r | |
1709 | HeadLen = 0;\r | |
1710 | DontFragment = IP4_DO_NOT_FRAGMENT (Head.Fragment);\r | |
772db4bb | 1711 | \r |
216f7970 | 1712 | if (!DontFragment) {\r |
098e9f49 FS |
1713 | Status = EFI_INVALID_PARAMETER;\r |
1714 | goto ON_EXIT;\r | |
216f7970 | 1715 | }\r |
1716 | \r | |
1717 | GateWay = IP4_ALLZERO_ADDRESS;\r | |
1718 | \r | |
1719 | //\r | |
1720 | // Get IPv4 options from first fragment.\r | |
1721 | //\r | |
1722 | if (RawHdrLen == IP4_MIN_HEADLEN) {\r | |
1723 | OptionsLength = 0;\r | |
1724 | OptionsBuffer = NULL;\r | |
1725 | } else {\r | |
1726 | OptionsLength = RawHdrLen - IP4_MIN_HEADLEN;\r | |
1727 | OptionsBuffer = (UINT8 *) FirstFragment + IP4_MIN_HEADLEN;\r | |
1728 | }\r | |
1729 | \r | |
1730 | //\r | |
1731 | // Trim off IPv4 header and options from first fragment.\r | |
1732 | //\r | |
1733 | TxData->FragmentTable[0].FragmentBuffer = (UINT8 *) FirstFragment + RawHdrLen;\r | |
1734 | TxData->FragmentTable[0].FragmentLength = TxData->FragmentTable[0].FragmentLength - RawHdrLen;\r | |
772db4bb | 1735 | } else {\r |
216f7970 | 1736 | CopyMem (&Head.Dst, &TxData->DestinationAddress, sizeof (IP4_ADDR));\r |
1737 | Head.Dst = NTOHL (Head.Dst);\r | |
772db4bb | 1738 | \r |
216f7970 | 1739 | if (TxData->OverrideData != NULL) {\r |
1740 | Override = TxData->OverrideData;\r | |
1741 | Head.Protocol = Override->Protocol;\r | |
1742 | Head.Tos = Override->TypeOfService;\r | |
1743 | Head.Ttl = Override->TimeToLive;\r | |
1744 | DontFragment = Override->DoNotFragment;\r | |
1745 | \r | |
1746 | CopyMem (&Head.Src, &Override->SourceAddress, sizeof (IP4_ADDR));\r | |
1747 | CopyMem (&GateWay, &Override->GatewayAddress, sizeof (IP4_ADDR));\r | |
1748 | \r | |
1749 | Head.Src = NTOHL (Head.Src);\r | |
1750 | GateWay = NTOHL (GateWay);\r | |
1751 | } else {\r | |
1752 | Head.Src = IpIf->Ip;\r | |
1753 | GateWay = IP4_ALLZERO_ADDRESS;\r | |
1754 | Head.Protocol = Config->DefaultProtocol;\r | |
1755 | Head.Tos = Config->TypeOfService;\r | |
1756 | Head.Ttl = Config->TimeToLive;\r | |
1757 | DontFragment = Config->DoNotFragment;\r | |
1758 | }\r | |
1759 | \r | |
1760 | Head.Fragment = IP4_HEAD_FRAGMENT_FIELD (DontFragment, FALSE, 0);\r | |
1761 | HeadLen = (TxData->OptionsLength + 3) & (~0x03);\r | |
1762 | \r | |
1763 | OptionsLength = TxData->OptionsLength;\r | |
1764 | OptionsBuffer = (UINT8 *) (TxData->OptionsBuffer);\r | |
1765 | }\r | |
772db4bb | 1766 | \r |
1767 | //\r | |
1768 | // If don't fragment and fragment needed, return error\r | |
1769 | //\r | |
a1503a32 | 1770 | if (DontFragment && (TxData->TotalDataLength + HeadLen > IpSb->MaxPacketSize)) {\r |
772db4bb | 1771 | Status = EFI_BAD_BUFFER_SIZE;\r |
1772 | goto ON_EXIT;\r | |
1773 | }\r | |
1774 | \r | |
1775 | //\r | |
1776 | // OK, it survives all the validation check. Wrap the token in\r | |
1777 | // a IP4_TXTOKEN_WRAP and the data in a netbuf\r | |
1778 | //\r | |
1779 | Status = EFI_OUT_OF_RESOURCES;\r | |
f6b7393c | 1780 | Wrap = AllocateZeroPool (sizeof (IP4_TXTOKEN_WRAP));\r |
772db4bb | 1781 | if (Wrap == NULL) {\r |
1782 | goto ON_EXIT;\r | |
1783 | }\r | |
1784 | \r | |
1785 | Wrap->IpInstance = IpInstance;\r | |
1786 | Wrap->Token = Token;\r | |
1787 | Wrap->Sent = FALSE;\r | |
1788 | Wrap->Life = IP4_US_TO_SEC (Config->TransmitTimeout);\r | |
1789 | Wrap->Packet = NetbufFromExt (\r | |
1790 | (NET_FRAGMENT *) TxData->FragmentTable,\r | |
1791 | TxData->FragmentCount,\r | |
1792 | IP4_MAX_HEADLEN,\r | |
1793 | 0,\r | |
1794 | Ip4FreeTxToken,\r | |
1795 | Wrap\r | |
1796 | );\r | |
1797 | \r | |
1798 | if (Wrap->Packet == NULL) {\r | |
766c7483 | 1799 | FreePool (Wrap);\r |
772db4bb | 1800 | goto ON_EXIT;\r |
1801 | }\r | |
1802 | \r | |
1803 | Token->Status = EFI_NOT_READY;\r | |
1804 | \r | |
1805 | if (EFI_ERROR (NetMapInsertTail (&IpInstance->TxTokens, Token, Wrap))) {\r | |
1806 | //\r | |
1807 | // NetbufFree will call Ip4FreeTxToken, which in turn will\r | |
1808 | // free the IP4_TXTOKEN_WRAP. Now, the token wrap hasn't been\r | |
1809 | // enqueued.\r | |
1810 | //\r | |
216f7970 | 1811 | if (Config->RawData) {\r |
1812 | //\r | |
1813 | // Restore pointer of first fragment in RawData mode.\r | |
1814 | //\r | |
1815 | TxData->FragmentTable[0].FragmentBuffer = (UINT8 *) FirstFragment;\r | |
1816 | }\r | |
1817 | \r | |
772db4bb | 1818 | NetbufFree (Wrap->Packet);\r |
1819 | goto ON_EXIT;\r | |
1820 | }\r | |
1821 | \r | |
36ee91ca | 1822 | //\r |
1823 | // Mark the packet sent before output it. Mark it not sent again if the\r | |
1824 | // returned status is not EFI_SUCCESS;\r | |
1825 | //\r | |
1826 | Wrap->Sent = TRUE;\r | |
1827 | \r | |
772db4bb | 1828 | Status = Ip4Output (\r |
1829 | IpSb,\r | |
1830 | IpInstance,\r | |
1831 | Wrap->Packet,\r | |
1832 | &Head,\r | |
216f7970 | 1833 | OptionsBuffer,\r |
1834 | OptionsLength,\r | |
772db4bb | 1835 | GateWay,\r |
1836 | Ip4OnPacketSent,\r | |
1837 | Wrap\r | |
1838 | );\r | |
1839 | \r | |
1840 | if (EFI_ERROR (Status)) {\r | |
36ee91ca | 1841 | Wrap->Sent = FALSE;\r |
216f7970 | 1842 | \r |
1843 | if (Config->RawData) {\r | |
1844 | //\r | |
1845 | // Restore pointer of first fragment in RawData mode.\r | |
1846 | //\r | |
1847 | TxData->FragmentTable[0].FragmentBuffer = (UINT8 *) FirstFragment;\r | |
1848 | }\r | |
1849 | \r | |
772db4bb | 1850 | NetbufFree (Wrap->Packet);\r |
772db4bb | 1851 | }\r |
1852 | \r | |
216f7970 | 1853 | if (Config->RawData) {\r |
1854 | //\r | |
1855 | // Restore pointer of first fragment in RawData mode.\r | |
1856 | //\r | |
1857 | TxData->FragmentTable[0].FragmentBuffer = (UINT8 *) FirstFragment;\r | |
1858 | }\r | |
1859 | \r | |
772db4bb | 1860 | ON_EXIT:\r |
e48e37fc | 1861 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 1862 | return Status;\r |
1863 | }\r | |
1864 | \r | |
1865 | \r | |
1866 | /**\r | |
5405e9a6 | 1867 | Places a receiving request into the receiving queue.\r |
e2851998 | 1868 | \r |
5405e9a6 | 1869 | The Receive() function places a completion token into the receive packet queue.\r |
1870 | This function is always asynchronous.\r | |
e2851998 | 1871 | \r |
5405e9a6 | 1872 | The Token.Event field in the completion token must be filled in by the caller\r |
1873 | and cannot be NULL. When the receive operation completes, the EFI IPv4 Protocol\r | |
1874 | driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event\r | |
1875 | is signaled.\r | |
1876 | \r | |
3e8c18da | 1877 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
1878 | @param[in] Token Pointer to a token that is associated with the receive data descriptor.\r | |
5405e9a6 | 1879 | \r |
1880 | @retval EFI_SUCCESS The receive completion token was cached.\r | |
1881 | @retval EFI_NOT_STARTED This EFI IPv4 Protocol instance has not been started.\r | |
1882 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP, RARP, etc.)\r | |
1883 | is not finished yet.\r | |
1884 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
1885 | - This is NULL.\r | |
1886 | - Token is NULL.\r | |
1887 | - Token.Event is NULL.\r | |
1888 | @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system\r | |
1889 | resources (usually memory).\r | |
1890 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
1891 | The EFI IPv4 Protocol instance has been reset to startup defaults.\r | |
1892 | EFI_ACCESS_DENIED The receive completion token with the same Token.Event was already\r | |
1893 | in the receive queue.\r | |
1894 | @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full.\r | |
1895 | @retval EFI_ICMP_ERROR An ICMP error packet was received.\r | |
772db4bb | 1896 | \r |
1897 | **/\r | |
772db4bb | 1898 | EFI_STATUS\r |
1899 | EFIAPI\r | |
1900 | EfiIp4Receive (\r | |
1901 | IN EFI_IP4_PROTOCOL *This,\r | |
1902 | IN EFI_IP4_COMPLETION_TOKEN *Token\r | |
1903 | )\r | |
1904 | {\r | |
1905 | IP4_PROTOCOL *IpInstance;\r | |
772db4bb | 1906 | EFI_STATUS Status;\r |
1907 | EFI_TPL OldTpl;\r | |
1908 | \r | |
1909 | //\r | |
1910 | // First validate the parameters\r | |
1911 | //\r | |
1912 | if ((This == NULL) || (Token == NULL) || (Token->Event == NULL)) {\r | |
1913 | return EFI_INVALID_PARAMETER;\r | |
1914 | }\r | |
1915 | \r | |
1916 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r | |
1917 | \r | |
e48e37fc | 1918 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 1919 | \r |
1920 | if (IpInstance->State != IP4_STATE_CONFIGED) {\r | |
1921 | Status = EFI_NOT_STARTED;\r | |
1922 | goto ON_EXIT;\r | |
1923 | }\r | |
1924 | \r | |
772db4bb | 1925 | //\r |
1926 | // Check whether the toke is already on the receive queue.\r | |
1927 | //\r | |
1928 | Status = NetMapIterate (&IpInstance->RxTokens, Ip4TokenExist, Token);\r | |
1929 | \r | |
1930 | if (EFI_ERROR (Status)) {\r | |
1931 | Status = EFI_ACCESS_DENIED;\r | |
1932 | goto ON_EXIT;\r | |
1933 | }\r | |
1934 | \r | |
1935 | //\r | |
1936 | // Queue the token then check whether there is pending received packet.\r | |
1937 | //\r | |
1938 | Status = NetMapInsertTail (&IpInstance->RxTokens, Token, NULL);\r | |
1939 | \r | |
1940 | if (EFI_ERROR (Status)) {\r | |
1941 | goto ON_EXIT;\r | |
1942 | }\r | |
1943 | \r | |
1944 | Status = Ip4InstanceDeliverPacket (IpInstance);\r | |
1945 | \r | |
36ee91ca | 1946 | //\r |
1947 | // Dispatch the DPC queued by the NotifyFunction of this instane's receive\r | |
1948 | // event.\r | |
1949 | //\r | |
d8d26fb2 | 1950 | DispatchDpc ();\r |
36ee91ca | 1951 | \r |
772db4bb | 1952 | ON_EXIT:\r |
e48e37fc | 1953 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 1954 | return Status;\r |
1955 | }\r | |
1956 | \r | |
1957 | \r | |
1958 | /**\r | |
1959 | Cancel the transmitted but not recycled packet. If a matching\r | |
1960 | token is found, it will call Ip4CancelPacket to cancel the\r | |
1961 | packet. Ip4CancelPacket will cancel all the fragments of the\r | |
1962 | packet. When all the fragments are freed, the IP4_TXTOKEN_WRAP\r | |
1963 | will be deleted from the Map, and user's event signalled.\r | |
1964 | Because Ip4CancelPacket and other functions are all called in\r | |
1965 | line, so, after Ip4CancelPacket returns, the Item has been freed.\r | |
1966 | \r | |
1f6729ff | 1967 | @param[in] Map The IP4 child's transmit queue.\r |
1968 | @param[in] Item The current transmitted packet to test.\r | |
1969 | @param[in] Context The user's token to cancel.\r | |
772db4bb | 1970 | \r |
1971 | @retval EFI_SUCCESS Continue to check the next Item.\r | |
1972 | @retval EFI_ABORTED The user's Token (Token != NULL) is cancelled.\r | |
1973 | \r | |
1974 | **/\r | |
772db4bb | 1975 | EFI_STATUS\r |
e798cd87 | 1976 | EFIAPI\r |
772db4bb | 1977 | Ip4CancelTxTokens (\r |
1978 | IN NET_MAP *Map,\r | |
1979 | IN NET_MAP_ITEM *Item,\r | |
1980 | IN VOID *Context\r | |
1981 | )\r | |
1982 | {\r | |
1983 | EFI_IP4_COMPLETION_TOKEN *Token;\r | |
1984 | IP4_TXTOKEN_WRAP *Wrap;\r | |
1985 | \r | |
1986 | Token = (EFI_IP4_COMPLETION_TOKEN *) Context;\r | |
1987 | \r | |
1988 | //\r | |
1989 | // Return EFI_SUCCESS to check the next item in the map if\r | |
1990 | // this one doesn't match.\r | |
1991 | //\r | |
1992 | if ((Token != NULL) && (Token != Item->Key)) {\r | |
1993 | return EFI_SUCCESS;\r | |
1994 | }\r | |
1995 | \r | |
1996 | Wrap = (IP4_TXTOKEN_WRAP *) Item->Value;\r | |
1997 | ASSERT (Wrap != NULL);\r | |
1998 | \r | |
1999 | //\r | |
2000 | // Don't access the Item, Wrap and Token's members after this point.\r | |
2001 | // Item and wrap has been freed. And we no longer own the Token.\r | |
2002 | //\r | |
2003 | Ip4CancelPacket (Wrap->IpInstance->Interface, Wrap->Packet, EFI_ABORTED);\r | |
2004 | \r | |
2005 | //\r | |
2006 | // If only one item is to be cancel, return EFI_ABORTED to stop\r | |
2007 | // iterating the map any more.\r | |
2008 | //\r | |
2009 | if (Token != NULL) {\r | |
2010 | return EFI_ABORTED;\r | |
2011 | }\r | |
2012 | \r | |
2013 | return EFI_SUCCESS;\r | |
2014 | }\r | |
2015 | \r | |
2016 | \r | |
2017 | /**\r | |
2018 | Cancel the receive request. This is quiet simple, because\r | |
2019 | it is only enqueued in our local receive map.\r | |
2020 | \r | |
1f6729ff | 2021 | @param[in] Map The IP4 child's receive queue.\r |
2022 | @param[in] Item Current receive request to cancel.\r | |
2023 | @param[in] Context The user's token to cancel.\r | |
772db4bb | 2024 | \r |
2025 | @retval EFI_SUCCESS Continue to check the next receive request on the\r | |
2026 | queue.\r | |
2027 | @retval EFI_ABORTED The user's token (token != NULL) has been\r | |
2028 | cancelled.\r | |
2029 | \r | |
2030 | **/\r | |
772db4bb | 2031 | EFI_STATUS\r |
e798cd87 | 2032 | EFIAPI\r |
772db4bb | 2033 | Ip4CancelRxTokens (\r |
2034 | IN NET_MAP *Map,\r | |
2035 | IN NET_MAP_ITEM *Item,\r | |
2036 | IN VOID *Context\r | |
2037 | )\r | |
2038 | {\r | |
2039 | EFI_IP4_COMPLETION_TOKEN *Token;\r | |
2040 | EFI_IP4_COMPLETION_TOKEN *This;\r | |
2041 | \r | |
2042 | Token = (EFI_IP4_COMPLETION_TOKEN *) Context;\r | |
2043 | This = Item->Key;\r | |
2044 | \r | |
2045 | if ((Token != NULL) && (Token != This)) {\r | |
2046 | return EFI_SUCCESS;\r | |
2047 | }\r | |
2048 | \r | |
2049 | NetMapRemoveItem (Map, Item, NULL);\r | |
2050 | \r | |
2051 | This->Status = EFI_ABORTED;\r | |
2052 | This->Packet.RxData = NULL;\r | |
2053 | gBS->SignalEvent (This->Event);\r | |
2054 | \r | |
2055 | if (Token != NULL) {\r | |
2056 | return EFI_ABORTED;\r | |
2057 | }\r | |
2058 | \r | |
2059 | return EFI_SUCCESS;\r | |
2060 | }\r | |
2061 | \r | |
2062 | \r | |
2063 | /**\r | |
2064 | Cancel the user's receive/transmit request.\r | |
2065 | \r | |
1f6729ff | 2066 | @param[in] IpInstance The IP4 child.\r |
3e8c18da | 2067 | @param[in] Token The token to cancel. If NULL, all token will be\r |
772db4bb | 2068 | cancelled.\r |
2069 | \r | |
1f6729ff | 2070 | @retval EFI_SUCCESS The token is cancelled.\r |
772db4bb | 2071 | @retval EFI_NOT_FOUND The token isn't found on either the\r |
1f6729ff | 2072 | transmit/receive queue.\r |
772db4bb | 2073 | @retval EFI_DEVICE_ERROR Not all token is cancelled when Token is NULL.\r |
2074 | \r | |
2075 | **/\r | |
2076 | EFI_STATUS\r | |
2077 | Ip4Cancel (\r | |
2078 | IN IP4_PROTOCOL *IpInstance,\r | |
2079 | IN EFI_IP4_COMPLETION_TOKEN *Token OPTIONAL\r | |
2080 | )\r | |
2081 | {\r | |
2082 | EFI_STATUS Status;\r | |
2083 | \r | |
2084 | //\r | |
2085 | // First check the transmitted packet. Ip4CancelTxTokens returns\r | |
2086 | // EFI_ABORTED to mean that the token has been cancelled when\r | |
2087 | // token != NULL. So, return EFI_SUCCESS for this condition.\r | |
2088 | //\r | |
2089 | Status = NetMapIterate (&IpInstance->TxTokens, Ip4CancelTxTokens, Token);\r | |
2090 | \r | |
2091 | if (EFI_ERROR (Status)) {\r | |
2092 | if ((Token != NULL) && (Status == EFI_ABORTED)) {\r | |
2093 | return EFI_SUCCESS;\r | |
2094 | }\r | |
2095 | \r | |
2096 | return Status;\r | |
2097 | }\r | |
2098 | \r | |
2099 | //\r | |
2100 | // Check the receive queue. Ip4CancelRxTokens also returns EFI_ABORT\r | |
2101 | // for Token!=NULL and it is cancelled.\r | |
2102 | //\r | |
2103 | Status = NetMapIterate (&IpInstance->RxTokens, Ip4CancelRxTokens, Token);\r | |
36ee91ca | 2104 | //\r |
2105 | // Dispatch the DPCs queued by the NotifyFunction of the canceled rx token's\r | |
2106 | // events.\r | |
2107 | //\r | |
d8d26fb2 | 2108 | DispatchDpc ();\r |
772db4bb | 2109 | if (EFI_ERROR (Status)) {\r |
2110 | if ((Token != NULL) && (Status == EFI_ABORTED)) {\r | |
2111 | return EFI_SUCCESS;\r | |
2112 | }\r | |
2113 | \r | |
2114 | return Status;\r | |
2115 | }\r | |
2116 | \r | |
2117 | //\r | |
2118 | // OK, if the Token is found when Token != NULL, the NetMapIterate\r | |
2119 | // will return EFI_ABORTED, which has been interrupted as EFI_SUCCESS.\r | |
2120 | //\r | |
2121 | if (Token != NULL) {\r | |
2122 | return EFI_NOT_FOUND;\r | |
2123 | }\r | |
2124 | \r | |
2125 | //\r | |
2126 | // If Token == NULL, cancel all the tokens. return error if no\r | |
2127 | // all of them are cancelled.\r | |
2128 | //\r | |
2129 | if (!NetMapIsEmpty (&IpInstance->TxTokens) ||\r | |
2130 | !NetMapIsEmpty (&IpInstance->RxTokens)) {\r | |
2131 | \r | |
2132 | return EFI_DEVICE_ERROR;\r | |
2133 | }\r | |
2134 | \r | |
2135 | return EFI_SUCCESS;\r | |
2136 | }\r | |
2137 | \r | |
2138 | \r | |
2139 | /**\r | |
5405e9a6 | 2140 | Abort an asynchronous transmit or receive request.\r |
e2851998 | 2141 | \r |
5405e9a6 | 2142 | The Cancel() function is used to abort a pending transmit or receive request.\r |
2143 | If the token is in the transmit or receive request queues, after calling this\r | |
2144 | function, Token->Status will be set to EFI_ABORTED and then Token->Event will\r | |
2145 | be signaled. If the token is not in one of the queues, which usually means the\r | |
2146 | asynchronous operation has completed, this function will not signal the token\r | |
2147 | and EFI_NOT_FOUND is returned.\r | |
2148 | \r | |
3e8c18da | 2149 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
2150 | @param[in] Token Pointer to a token that has been issued by\r | |
2151 | EFI_IP4_PROTOCOL.Transmit() or\r | |
2152 | EFI_IP4_PROTOCOL.Receive(). If NULL, all pending\r | |
2153 | tokens are aborted. Type EFI_IP4_COMPLETION_TOKEN is\r | |
2154 | defined in EFI_IP4_PROTOCOL.Transmit().\r | |
5405e9a6 | 2155 | \r |
2156 | @retval EFI_SUCCESS The asynchronous I/O request was aborted and\r | |
2157 | Token.->Event was signaled. When Token is NULL, all\r | |
2158 | pending requests were aborted and their events were signaled.\r | |
2159 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
2160 | @retval EFI_NOT_STARTED This instance has not been started.\r | |
2161 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
2162 | RARP, etc.) is not finished yet.\r | |
2163 | @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was\r | |
2164 | not found in the transmit or receive queue. It has either completed\r | |
2165 | or was not issued by Transmit() and Receive().\r | |
772db4bb | 2166 | \r |
2167 | **/\r | |
772db4bb | 2168 | EFI_STATUS\r |
2169 | EFIAPI\r | |
2170 | EfiIp4Cancel (\r | |
2171 | IN EFI_IP4_PROTOCOL *This,\r | |
2172 | IN EFI_IP4_COMPLETION_TOKEN *Token OPTIONAL\r | |
2173 | )\r | |
2174 | {\r | |
2175 | IP4_PROTOCOL *IpInstance;\r | |
2176 | EFI_STATUS Status;\r | |
2177 | EFI_TPL OldTpl;\r | |
2178 | \r | |
2179 | if (This == NULL) {\r | |
2180 | return EFI_INVALID_PARAMETER;\r | |
2181 | }\r | |
2182 | \r | |
2183 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r | |
2184 | \r | |
e48e37fc | 2185 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 2186 | \r |
2187 | if (IpInstance->State != IP4_STATE_CONFIGED) {\r | |
2188 | Status = EFI_NOT_STARTED;\r | |
2189 | goto ON_EXIT;\r | |
2190 | }\r | |
2191 | \r | |
2192 | if (IpInstance->ConfigData.UseDefaultAddress && IP4_NO_MAPPING (IpInstance)) {\r | |
2193 | Status = EFI_NO_MAPPING;\r | |
2194 | goto ON_EXIT;\r | |
2195 | }\r | |
2196 | \r | |
2197 | Status = Ip4Cancel (IpInstance, Token);\r | |
2198 | \r | |
2199 | ON_EXIT:\r | |
e48e37fc | 2200 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 2201 | return Status;\r |
2202 | }\r | |
2203 | \r | |
2204 | \r | |
2205 | /**\r | |
5405e9a6 | 2206 | Polls for incoming data packets and processes outgoing data packets.\r |
e2851998 | 2207 | \r |
5405e9a6 | 2208 | The Poll() function polls for incoming data packets and processes outgoing data\r |
2209 | packets. Network drivers and applications can call the EFI_IP4_PROTOCOL.Poll()\r | |
2210 | function to increase the rate that data packets are moved between the communications\r | |
2211 | device and the transmit and receive queues.\r | |
e2851998 | 2212 | \r |
5405e9a6 | 2213 | In some systems the periodic timer event may not poll the underlying communications\r |
2214 | device fast enough to transmit and/or receive all data packets without missing\r | |
2215 | incoming packets or dropping outgoing packets. Drivers and applications that are\r | |
2216 | experiencing packet loss should try calling the EFI_IP4_PROTOCOL.Poll() function\r | |
2217 | more often.\r | |
2218 | \r | |
3e8c18da | 2219 | @param[in] This Pointer to the EFI_IP4_PROTOCOL instance.\r |
5405e9a6 | 2220 | \r |
2221 | @retval EFI_SUCCESS Incoming or outgoing data was processed.\r | |
2222 | @retval EFI_NOT_STARTED This EFI IPv4 Protocol instance has not been started.\r | |
2223 | @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,\r | |
2224 | RARP, etc.) is not finished yet.\r | |
2225 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
2226 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
2227 | @retval EFI_NOT_READY No incoming or outgoing data is processed.\r | |
2228 | @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive queue.\r | |
2229 | Consider increasing the polling rate.\r | |
772db4bb | 2230 | \r |
2231 | **/\r | |
772db4bb | 2232 | EFI_STATUS\r |
2233 | EFIAPI\r | |
2234 | EfiIp4Poll (\r | |
2235 | IN EFI_IP4_PROTOCOL *This\r | |
2236 | )\r | |
2237 | {\r | |
2238 | IP4_PROTOCOL *IpInstance;\r | |
2239 | EFI_MANAGED_NETWORK_PROTOCOL *Mnp;\r | |
2240 | \r | |
2241 | if (This == NULL) {\r | |
2242 | return EFI_INVALID_PARAMETER;\r | |
2243 | }\r | |
2244 | \r | |
2245 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (This);\r | |
2246 | \r | |
2247 | if (IpInstance->State == IP4_STATE_UNCONFIGED) {\r | |
2248 | return EFI_NOT_STARTED;\r | |
2249 | }\r | |
2250 | \r | |
2251 | Mnp = IpInstance->Service->Mnp;\r | |
2252 | \r | |
2253 | //\r | |
2254 | // Don't lock the Poll function to enable the deliver of\r | |
2255 | // the packet polled up.\r | |
2256 | //\r | |
2257 | return Mnp->Poll (Mnp);\r | |
2258 | }\r | |
2259 | \r | |
772db4bb | 2260 | /**\r |
2261 | Decrease the life of the transmitted packets. If it is\r | |
2262 | decreased to zero, cancel the packet. This function is\r | |
96e1079f | 2263 | called by Ip4PacketTimerTicking which time out both the\r |
772db4bb | 2264 | received-but-not-delivered and transmitted-but-not-recycle\r |
2265 | packets.\r | |
2266 | \r | |
3e8c18da | 2267 | @param[in] Map The IP4 child's transmit map.\r |
1f6729ff | 2268 | @param[in] Item Current transmitted packet.\r |
3e8c18da | 2269 | @param[in] Context Not used.\r |
772db4bb | 2270 | \r |
1f6729ff | 2271 | @retval EFI_SUCCESS Always returns EFI_SUCCESS.\r |
772db4bb | 2272 | \r |
2273 | **/\r | |
2274 | EFI_STATUS\r | |
e798cd87 | 2275 | EFIAPI\r |
772db4bb | 2276 | Ip4SentPacketTicking (\r |
2277 | IN NET_MAP *Map,\r | |
2278 | IN NET_MAP_ITEM *Item,\r | |
2279 | IN VOID *Context\r | |
2280 | )\r | |
2281 | {\r | |
2282 | IP4_TXTOKEN_WRAP *Wrap;\r | |
2283 | \r | |
2284 | Wrap = (IP4_TXTOKEN_WRAP *) Item->Value;\r | |
2285 | ASSERT (Wrap != NULL);\r | |
2286 | \r | |
2287 | if ((Wrap->Life > 0) && (--Wrap->Life == 0)) {\r | |
2288 | Ip4CancelPacket (Wrap->IpInstance->Interface, Wrap->Packet, EFI_ABORTED);\r | |
2289 | }\r | |
2290 | \r | |
2291 | return EFI_SUCCESS;\r | |
2292 | }\r | |
2293 | \r | |
2294 | \r | |
2295 | /**\r | |
2c320007 JW |
2296 | There are two steps for this the heart beat timer of IP4 service instance. \r |
2297 | First, it times out all of its IP4 children's received-but-not-delivered \r | |
2298 | and transmitted-but-not-recycle packets, and provides time input for its \r | |
2299 | IGMP protocol.\r | |
2300 | Second, a dedicated timer is used to poll underlying media status. In case \r | |
2301 | of cable swap, a new round auto configuration will be initiated. The timer \r | |
2302 | will signal the IP4 to run DHCP configuration again. IP4 driver will free\r | |
2303 | old IP address related resource, such as route table and Interface, then\r | |
2304 | initiate a DHCP process to acquire new IP, eventually create route table \r | |
2305 | for new IP address.\r | |
772db4bb | 2306 | \r |
3e8c18da | 2307 | @param[in] Event The IP4 service instance's heart beat timer.\r |
2308 | @param[in] Context The IP4 service instance.\r | |
772db4bb | 2309 | \r |
2310 | **/\r | |
2311 | VOID\r | |
2312 | EFIAPI\r | |
2313 | Ip4TimerTicking (\r | |
2314 | IN EFI_EVENT Event,\r | |
2315 | IN VOID *Context\r | |
2316 | )\r | |
2317 | {\r | |
2318 | IP4_SERVICE *IpSb;\r | |
2c320007 JW |
2319 | BOOLEAN OldMediaPresent;\r |
2320 | EFI_STATUS Status;\r | |
2321 | EFI_SIMPLE_NETWORK_MODE SnpModeData;\r | |
772db4bb | 2322 | \r |
2323 | IpSb = (IP4_SERVICE *) Context;\r | |
2324 | NET_CHECK_SIGNATURE (IpSb, IP4_SERVICE_SIGNATURE);\r | |
2c320007 JW |
2325 | \r |
2326 | OldMediaPresent = IpSb->MediaPresent;\r | |
772db4bb | 2327 | \r |
2328 | Ip4PacketTimerTicking (IpSb);\r | |
2329 | Ip4IgmpTicking (IpSb);\r | |
2c320007 JW |
2330 | \r |
2331 | //\r | |
2332 | // Get fresh mode data from MNP, since underlying media status may change. \r | |
2333 | // Here, it needs to mention that the MediaPresent can also be checked even if \r | |
2334 | // EFI_NOT_STARTED returned while this MNP child driver instance isn't configured.\r | |
2335 | //\r | |
2336 | Status = IpSb->Mnp->GetModeData (IpSb->Mnp, NULL, &SnpModeData);\r | |
2337 | if (EFI_ERROR (Status) && (Status != EFI_NOT_STARTED)) {\r | |
2338 | return;\r | |
2339 | }\r | |
2340 | \r | |
2341 | IpSb->MediaPresent = SnpModeData.MediaPresent;\r | |
2342 | //\r | |
2343 | // Media transimit Unpresent to Present means new link movement is detected.\r | |
2344 | //\r | |
7648748e | 2345 | if (!OldMediaPresent && IpSb->MediaPresent && (IpSb->Ip4Config2Instance.Policy == Ip4Config2PolicyDhcp)) {\r |
2c320007 JW |
2346 | //\r |
2347 | // Signal the IP4 to run the dhcp configuration again. IP4 driver will free\r | |
2348 | // old IP address related resource, such as route table and Interface, then \r | |
2349 | // initiate a DHCP round to acquire new IP, eventually \r | |
2350 | // create route table for new IP address.\r | |
2351 | //\r | |
2352 | if (IpSb->ReconfigEvent != NULL) {\r | |
2353 | Status = gBS->SignalEvent (IpSb->ReconfigEvent);\r | |
2354 | DispatchDpc ();\r | |
2355 | }\r | |
2356 | }\r | |
772db4bb | 2357 | }\r |