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772db4bb | 1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2005 - 2006, Intel Corporation\r | |
4 | All rights reserved. This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | Ip4Driver.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | The driver binding and service binding protocol for IP4 driver.\r | |
19 | \r | |
20 | \r | |
21 | **/\r | |
22 | \r | |
23 | #include "Ip4Impl.h"\r | |
24 | \r | |
25 | EFI_DRIVER_BINDING_PROTOCOL gIp4DriverBinding = {\r | |
26 | Ip4DriverBindingSupported,\r | |
27 | Ip4DriverBindingStart,\r | |
28 | Ip4DriverBindingStop,\r | |
29 | 0xa,\r | |
30 | NULL,\r | |
31 | NULL\r | |
32 | };\r | |
33 | \r | |
5405e9a6 | 34 | /**\r |
35 | This is the declaration of an EFI image entry point. This entry point is\r | |
36 | the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including\r | |
37 | both device drivers and bus drivers.\r | |
38 | \r | |
39 | The entry point for IP4 driver which install the driver\r | |
40 | binding and component name protocol on its image.\r | |
41 | \r | |
42 | @param ImageHandle The firmware allocated handle for the UEFI image.\r | |
43 | @param SystemTable A pointer to the EFI System Table.\r | |
44 | \r | |
45 | @retval EFI_SUCCESS The operation completed successfully.\r | |
46 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
47 | \r | |
48 | **/\r | |
772db4bb | 49 | EFI_STATUS\r |
50 | EFIAPI\r | |
51 | Ip4DriverEntryPoint (\r | |
52 | IN EFI_HANDLE ImageHandle,\r | |
53 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
54 | )\r | |
772db4bb | 55 | {\r |
83cbd279 | 56 | return EfiLibInstallDriverBindingComponentName2 (\r |
772db4bb | 57 | ImageHandle,\r |
58 | SystemTable,\r | |
59 | &gIp4DriverBinding,\r | |
60 | ImageHandle,\r | |
61 | &gIp4ComponentName,\r | |
83cbd279 | 62 | &gIp4ComponentName2\r |
772db4bb | 63 | );\r |
64 | }\r | |
65 | \r | |
772db4bb | 66 | /**\r |
5405e9a6 | 67 | Test to see if this driver supports ControllerHandle. This service\r |
68 | is called by the EFI boot service ConnectController(). In\r | |
69 | order to make drivers as small as possible, there are a few calling\r | |
70 | restrictions for this service. ConnectController() must\r | |
71 | follow these calling restrictions. If any other agent wishes to call\r | |
72 | Supported() it must also follow these calling restrictions.\r | |
73 | \r | |
74 | @param This Protocol instance pointer.\r | |
75 | @param ControllerHandle Handle of device to test\r | |
76 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
77 | device to start.\r | |
78 | \r | |
79 | @retval EFI_SUCCESS This driver supports this device\r | |
80 | @retval EFI_ALREADY_STARTED This driver is already running on this device\r | |
81 | @retval other This driver does not support this device\r | |
772db4bb | 82 | \r |
83 | **/\r | |
84 | EFI_STATUS\r | |
85 | EFIAPI\r | |
86 | Ip4DriverBindingSupported (\r | |
87 | IN EFI_DRIVER_BINDING_PROTOCOL * This,\r | |
88 | IN EFI_HANDLE ControllerHandle,\r | |
89 | IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL\r | |
90 | )\r | |
91 | {\r | |
92 | EFI_STATUS Status;\r | |
93 | \r | |
94 | //\r | |
95 | // Test for the MNP service binding Protocol\r | |
96 | //\r | |
97 | Status = gBS->OpenProtocol (\r | |
98 | ControllerHandle,\r | |
99 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
100 | NULL,\r | |
101 | This->DriverBindingHandle,\r | |
102 | ControllerHandle,\r | |
103 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
104 | );\r | |
105 | \r | |
106 | if (EFI_ERROR (Status)) {\r | |
107 | return Status;\r | |
108 | }\r | |
109 | \r | |
110 | //\r | |
111 | // Test for the Arp service binding Protocol\r | |
112 | //\r | |
113 | Status = gBS->OpenProtocol (\r | |
114 | ControllerHandle,\r | |
115 | &gEfiArpServiceBindingProtocolGuid,\r | |
116 | NULL,\r | |
117 | This->DriverBindingHandle,\r | |
118 | ControllerHandle,\r | |
119 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
120 | );\r | |
121 | \r | |
122 | return Status;\r | |
123 | }\r | |
124 | \r | |
2ff29212 | 125 | /**\r |
126 | Clean up a IP4 service binding instance. It will release all\r | |
127 | the resource allocated by the instance. The instance may be\r | |
128 | partly initialized, or partly destroyed. If a resource is\r | |
129 | destroyed, it is marked as that in case the destory failed and\r | |
130 | being called again later.\r | |
131 | \r | |
132 | @param IpSb The IP4 serviceing binding instance to clean up\r | |
133 | \r | |
134 | @retval EFI_SUCCESS The resource used by the instance are cleaned up\r | |
135 | @retval other Failed to clean up some of the resources.\r | |
136 | \r | |
137 | **/\r | |
772db4bb | 138 | EFI_STATUS\r |
139 | Ip4CleanService (\r | |
140 | IN IP4_SERVICE *IpSb\r | |
141 | );\r | |
142 | \r | |
143 | \r | |
144 | /**\r | |
5405e9a6 | 145 | Create a new IP4 driver service binding private instance.\r |
772db4bb | 146 | \r |
147 | @param Controller The controller that has MNP service binding\r | |
148 | installed\r | |
149 | @param ImageHandle The IP4 driver's image handle\r | |
150 | @param Service The variable to receive the newly created IP4\r | |
151 | service.\r | |
152 | \r | |
153 | @retval EFI_OUT_OF_RESOURCES Failed to allocate some resource\r | |
154 | @retval EFI_SUCCESS A new IP4 service binding private is created.\r | |
5405e9a6 | 155 | @retval other Other error occurs.\r |
772db4bb | 156 | \r |
157 | **/\r | |
772db4bb | 158 | EFI_STATUS\r |
159 | Ip4CreateService (\r | |
160 | IN EFI_HANDLE Controller,\r | |
161 | IN EFI_HANDLE ImageHandle,\r | |
162 | OUT IP4_SERVICE **Service\r | |
163 | )\r | |
164 | {\r | |
165 | IP4_SERVICE *IpSb;\r | |
166 | EFI_STATUS Status;\r | |
167 | \r | |
168 | ASSERT (Service != NULL);\r | |
169 | \r | |
170 | *Service = NULL;\r | |
171 | \r | |
172 | //\r | |
173 | // allocate a service private data then initialize all the filed to\r | |
174 | // empty resources, so if any thing goes wrong when allocating\r | |
175 | // resources, Ip4CleanService can be called to clean it up.\r | |
176 | //\r | |
e48e37fc | 177 | IpSb = AllocatePool (sizeof (IP4_SERVICE));\r |
772db4bb | 178 | \r |
179 | if (IpSb == NULL) {\r | |
180 | return EFI_OUT_OF_RESOURCES;\r | |
181 | }\r | |
182 | \r | |
183 | IpSb->Signature = IP4_SERVICE_SIGNATURE;\r | |
184 | IpSb->ServiceBinding.CreateChild = Ip4ServiceBindingCreateChild;\r | |
185 | IpSb->ServiceBinding.DestroyChild = Ip4ServiceBindingDestroyChild;\r | |
186 | IpSb->State = IP4_SERVICE_UNSTARTED;\r | |
187 | IpSb->InDestory = FALSE;\r | |
188 | \r | |
189 | IpSb->NumChildren = 0;\r | |
e48e37fc | 190 | InitializeListHead (&IpSb->Children);\r |
772db4bb | 191 | \r |
e48e37fc | 192 | InitializeListHead (&IpSb->Interfaces);\r |
772db4bb | 193 | IpSb->DefaultInterface = NULL;\r |
194 | IpSb->DefaultRouteTable = NULL;\r | |
195 | \r | |
196 | Ip4InitAssembleTable (&IpSb->Assemble);\r | |
197 | \r | |
198 | IpSb->IgmpCtrl.Igmpv1QuerySeen = 0;\r | |
e48e37fc | 199 | InitializeListHead (&IpSb->IgmpCtrl.Groups);\r |
772db4bb | 200 | \r |
201 | IpSb->Image = ImageHandle;\r | |
202 | IpSb->Controller = Controller;\r | |
203 | \r | |
204 | IpSb->MnpChildHandle = NULL;\r | |
205 | IpSb->Mnp = NULL;\r | |
206 | \r | |
207 | IpSb->MnpConfigData.ReceivedQueueTimeoutValue = 0;\r | |
208 | IpSb->MnpConfigData.TransmitQueueTimeoutValue = 0;\r | |
209 | IpSb->MnpConfigData.ProtocolTypeFilter = IP4_ETHER_PROTO;\r | |
210 | IpSb->MnpConfigData.EnableUnicastReceive = TRUE;\r | |
211 | IpSb->MnpConfigData.EnableMulticastReceive = TRUE;\r | |
212 | IpSb->MnpConfigData.EnableBroadcastReceive = TRUE;\r | |
213 | IpSb->MnpConfigData.EnablePromiscuousReceive = FALSE;\r | |
214 | IpSb->MnpConfigData.FlushQueuesOnReset = TRUE;\r | |
215 | IpSb->MnpConfigData.EnableReceiveTimestamps = FALSE;\r | |
216 | IpSb->MnpConfigData.DisableBackgroundPolling = FALSE;\r | |
217 | \r | |
e48e37fc | 218 | ZeroMem (&IpSb->SnpMode, sizeof (EFI_SIMPLE_NETWORK_MODE));\r |
772db4bb | 219 | \r |
220 | IpSb->Timer = NULL;\r | |
221 | IpSb->Ip4Config = NULL;\r | |
222 | IpSb->DoneEvent = NULL;\r | |
223 | IpSb->ReconfigEvent = NULL;\r | |
36ee91ca | 224 | IpSb->ActiveEvent = NULL;\r |
772db4bb | 225 | \r |
226 | //\r | |
227 | // Create various resources. First create the route table, timer\r | |
228 | // event and MNP child. IGMP, interface's initialization depend\r | |
229 | // on the MNP child.\r | |
230 | //\r | |
231 | IpSb->DefaultRouteTable = Ip4CreateRouteTable ();\r | |
232 | \r | |
233 | if (IpSb->DefaultRouteTable == NULL) {\r | |
234 | Status = EFI_OUT_OF_RESOURCES;\r | |
235 | goto ON_ERROR;\r | |
236 | }\r | |
237 | \r | |
238 | Status = gBS->CreateEvent (\r | |
239 | EVT_NOTIFY_SIGNAL | EVT_TIMER,\r | |
e48e37fc | 240 | TPL_CALLBACK,\r |
772db4bb | 241 | Ip4TimerTicking,\r |
242 | IpSb,\r | |
243 | &IpSb->Timer\r | |
244 | );\r | |
245 | \r | |
246 | if (EFI_ERROR (Status)) {\r | |
247 | goto ON_ERROR;\r | |
248 | }\r | |
249 | \r | |
250 | Status = NetLibCreateServiceChild (\r | |
251 | Controller,\r | |
252 | ImageHandle,\r | |
253 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
254 | &IpSb->MnpChildHandle\r | |
255 | );\r | |
256 | \r | |
257 | if (EFI_ERROR (Status)) {\r | |
258 | goto ON_ERROR;\r | |
259 | }\r | |
260 | \r | |
261 | Status = gBS->OpenProtocol (\r | |
262 | IpSb->MnpChildHandle,\r | |
263 | &gEfiManagedNetworkProtocolGuid,\r | |
264 | (VOID **) &IpSb->Mnp,\r | |
265 | ImageHandle,\r | |
266 | Controller,\r | |
267 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
268 | );\r | |
269 | \r | |
270 | if (EFI_ERROR (Status)) {\r | |
271 | goto ON_ERROR;\r | |
272 | }\r | |
273 | \r | |
274 | Status = Ip4ServiceConfigMnp (IpSb, TRUE);\r | |
275 | \r | |
276 | if (EFI_ERROR (Status)) {\r | |
277 | goto ON_ERROR;\r | |
278 | }\r | |
279 | \r | |
280 | Status = IpSb->Mnp->GetModeData (IpSb->Mnp, NULL, &IpSb->SnpMode);\r | |
281 | \r | |
282 | if (EFI_ERROR (Status)) {\r | |
283 | goto ON_ERROR;\r | |
284 | }\r | |
285 | \r | |
286 | Status = Ip4InitIgmp (IpSb);\r | |
287 | \r | |
288 | if (EFI_ERROR (Status)) {\r | |
289 | goto ON_ERROR;\r | |
290 | }\r | |
291 | \r | |
292 | IpSb->DefaultInterface = Ip4CreateInterface (IpSb->Mnp, Controller, ImageHandle);\r | |
293 | \r | |
294 | if (IpSb->DefaultInterface == NULL) {\r | |
295 | Status = EFI_OUT_OF_RESOURCES;\r | |
296 | goto ON_ERROR;\r | |
297 | }\r | |
298 | \r | |
e48e37fc | 299 | InsertHeadList (&IpSb->Interfaces, &IpSb->DefaultInterface->Link);\r |
772db4bb | 300 | \r |
301 | IpSb->MacString = NULL;\r | |
302 | \r | |
303 | *Service = IpSb;\r | |
304 | return EFI_SUCCESS;\r | |
305 | \r | |
306 | ON_ERROR:\r | |
307 | Ip4CleanService (IpSb);\r | |
e48e37fc | 308 | gBS->FreePool (IpSb);\r |
772db4bb | 309 | \r |
310 | return Status;\r | |
311 | }\r | |
312 | \r | |
313 | \r | |
314 | /**\r | |
315 | Clean up a IP4 service binding instance. It will release all\r | |
316 | the resource allocated by the instance. The instance may be\r | |
5405e9a6 | 317 | partly initialized, or partly destroyed. If a resource is\r |
318 | destroyed, it is marked as that in case the destory failed and\r | |
772db4bb | 319 | being called again later.\r |
320 | \r | |
321 | @param IpSb The IP4 serviceing binding instance to clean up\r | |
322 | \r | |
323 | @retval EFI_SUCCESS The resource used by the instance are cleaned up\r | |
5405e9a6 | 324 | @retval other Failed to clean up some of the resources.\r |
772db4bb | 325 | \r |
326 | **/\r | |
327 | EFI_STATUS\r | |
328 | Ip4CleanService (\r | |
329 | IN IP4_SERVICE *IpSb\r | |
330 | )\r | |
331 | {\r | |
332 | EFI_STATUS Status;\r | |
333 | \r | |
334 | if (IpSb->DefaultInterface != NULL) {\r | |
335 | Status = Ip4FreeInterface (IpSb->DefaultInterface, NULL);\r | |
336 | \r | |
337 | if (EFI_ERROR (Status)) {\r | |
338 | return Status;\r | |
339 | }\r | |
340 | \r | |
341 | IpSb->DefaultInterface = NULL;\r | |
342 | }\r | |
343 | \r | |
344 | if (IpSb->DefaultRouteTable != NULL) {\r | |
345 | Ip4FreeRouteTable (IpSb->DefaultRouteTable);\r | |
346 | IpSb->DefaultRouteTable = NULL;\r | |
347 | }\r | |
348 | \r | |
349 | Ip4CleanAssembleTable (&IpSb->Assemble);\r | |
350 | \r | |
351 | if (IpSb->MnpChildHandle != NULL) {\r | |
5405e9a6 | 352 | if (IpSb->Mnp != NULL) {\r |
772db4bb | 353 | gBS->CloseProtocol (\r |
5405e9a6 | 354 | IpSb->MnpChildHandle,\r |
355 | &gEfiManagedNetworkProtocolGuid,\r | |
356 | IpSb->Image,\r | |
357 | IpSb->Controller\r | |
358 | );\r | |
772db4bb | 359 | \r |
360 | IpSb->Mnp = NULL;\r | |
361 | }\r | |
362 | \r | |
363 | NetLibDestroyServiceChild (\r | |
364 | IpSb->Controller,\r | |
365 | IpSb->Image,\r | |
366 | &gEfiManagedNetworkServiceBindingProtocolGuid,\r | |
367 | IpSb->MnpChildHandle\r | |
368 | );\r | |
369 | \r | |
370 | IpSb->MnpChildHandle = NULL;\r | |
371 | }\r | |
372 | \r | |
373 | if (IpSb->Timer != NULL) {\r | |
374 | gBS->SetTimer (IpSb->Timer, TimerCancel, 0);\r | |
375 | gBS->CloseEvent (IpSb->Timer);\r | |
376 | \r | |
377 | IpSb->Timer = NULL;\r | |
378 | }\r | |
379 | \r | |
380 | if (IpSb->Ip4Config != NULL) {\r | |
381 | IpSb->Ip4Config->Stop (IpSb->Ip4Config);\r | |
382 | \r | |
383 | gBS->CloseProtocol (\r | |
384 | IpSb->Controller,\r | |
385 | &gEfiIp4ConfigProtocolGuid,\r | |
386 | IpSb->Image,\r | |
387 | IpSb->Controller\r | |
388 | );\r | |
389 | \r | |
390 | gBS->CloseEvent (IpSb->DoneEvent);\r | |
391 | gBS->CloseEvent (IpSb->ReconfigEvent);\r | |
36ee91ca | 392 | IpSb->ActiveEvent = NULL;\r |
772db4bb | 393 | IpSb->Ip4Config = NULL;\r |
394 | }\r | |
395 | \r | |
396 | return EFI_SUCCESS;\r | |
397 | }\r | |
398 | \r | |
399 | \r | |
400 | /**\r | |
5405e9a6 | 401 | Start this driver on ControllerHandle. This service is called by the\r |
402 | EFI boot service ConnectController(). In order to make\r | |
403 | drivers as small as possible, there are a few calling restrictions for\r | |
404 | this service. ConnectController() must follow these\r | |
405 | calling restrictions. If any other agent wishes to call Start() it\r | |
406 | must also follow these calling restrictions.\r | |
407 | \r | |
408 | @param This Protocol instance pointer.\r | |
409 | @param ControllerHandle Handle of device to bind driver to\r | |
410 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
411 | device to start.\r | |
412 | \r | |
413 | @retval EFI_SUCCESS This driver is added to ControllerHandle\r | |
414 | @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle\r | |
415 | @retval other This driver does not support this device\r | |
772db4bb | 416 | \r |
417 | **/\r | |
418 | EFI_STATUS\r | |
419 | EFIAPI\r | |
420 | Ip4DriverBindingStart (\r | |
421 | IN EFI_DRIVER_BINDING_PROTOCOL * This,\r | |
422 | IN EFI_HANDLE ControllerHandle,\r | |
423 | IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL\r | |
424 | )\r | |
425 | {\r | |
426 | IP4_SERVICE *IpSb;\r | |
427 | EFI_STATUS Status;\r | |
428 | \r | |
429 | //\r | |
430 | // Test for the Ip4 service binding protocol\r | |
431 | //\r | |
432 | Status = gBS->OpenProtocol (\r | |
433 | ControllerHandle,\r | |
434 | &gEfiIp4ServiceBindingProtocolGuid,\r | |
435 | NULL,\r | |
436 | This->DriverBindingHandle,\r | |
437 | ControllerHandle,\r | |
438 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
439 | );\r | |
440 | \r | |
441 | if (Status == EFI_SUCCESS) {\r | |
442 | return EFI_ALREADY_STARTED;\r | |
443 | }\r | |
444 | \r | |
445 | Status = Ip4CreateService (ControllerHandle, This->DriverBindingHandle, &IpSb);\r | |
446 | \r | |
447 | if (EFI_ERROR (Status)) {\r | |
448 | return Status;\r | |
449 | }\r | |
450 | \r | |
451 | //\r | |
452 | // Install the Ip4ServiceBinding Protocol onto ControlerHandle\r | |
453 | //\r | |
454 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
455 | &ControllerHandle,\r | |
456 | &gEfiIp4ServiceBindingProtocolGuid,\r | |
457 | &IpSb->ServiceBinding,\r | |
458 | NULL\r | |
459 | );\r | |
460 | \r | |
461 | if (EFI_ERROR (Status)) {\r | |
462 | goto FREE_SERVICE;\r | |
463 | }\r | |
464 | \r | |
465 | //\r | |
466 | // ready to go: start the receiving and timer\r | |
467 | //\r | |
468 | Status = Ip4ReceiveFrame (IpSb->DefaultInterface, NULL, Ip4AccpetFrame, IpSb);\r | |
469 | \r | |
470 | if (EFI_ERROR (Status)) {\r | |
471 | goto UNINSTALL_PROTOCOL;\r | |
472 | }\r | |
473 | \r | |
474 | Status = gBS->SetTimer (IpSb->Timer, TimerPeriodic, TICKS_PER_SECOND);\r | |
475 | \r | |
476 | if (EFI_ERROR (Status)) {\r | |
477 | goto UNINSTALL_PROTOCOL;\r | |
478 | }\r | |
479 | \r | |
480 | //\r | |
481 | // Initialize the IP4 ID\r | |
482 | //\r | |
483 | mIp4Id = (UINT16)NET_RANDOM (NetRandomInitSeed ());\r | |
484 | \r | |
485 | Ip4SetVariableData (IpSb);\r | |
486 | \r | |
487 | return Status;\r | |
488 | \r | |
489 | UNINSTALL_PROTOCOL:\r | |
490 | gBS->UninstallProtocolInterface (\r | |
491 | ControllerHandle,\r | |
492 | &gEfiIp4ServiceBindingProtocolGuid,\r | |
493 | &IpSb->ServiceBinding\r | |
494 | );\r | |
495 | \r | |
496 | FREE_SERVICE:\r | |
497 | Ip4CleanService (IpSb);\r | |
e48e37fc | 498 | gBS->FreePool (IpSb);\r |
772db4bb | 499 | \r |
500 | return Status;\r | |
501 | }\r | |
502 | \r | |
503 | \r | |
504 | /**\r | |
5405e9a6 | 505 | Stop this driver on ControllerHandle. This service is called by the\r |
506 | EFI boot service DisconnectController(). In order to\r | |
507 | make drivers as small as possible, there are a few calling\r | |
508 | restrictions for this service. DisconnectController()\r | |
509 | must follow these calling restrictions. If any other agent wishes\r | |
510 | to call Stop() it must also follow these calling restrictions.\r | |
511 | \r | |
512 | @param This Protocol instance pointer.\r | |
513 | @param ControllerHandle Handle of device to stop driver on\r | |
514 | @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r | |
515 | children is zero stop the entire bus driver.\r | |
516 | @param ChildHandleBuffer List of Child Handles to Stop.\r | |
517 | \r | |
518 | @retval EFI_SUCCESS This driver is removed ControllerHandle\r | |
519 | @retval other This driver was not removed from this device\r | |
772db4bb | 520 | \r |
521 | **/\r | |
522 | EFI_STATUS\r | |
523 | EFIAPI\r | |
524 | Ip4DriverBindingStop (\r | |
525 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
526 | IN EFI_HANDLE ControllerHandle,\r | |
527 | IN UINTN NumberOfChildren,\r | |
528 | IN EFI_HANDLE *ChildHandleBuffer\r | |
529 | )\r | |
530 | {\r | |
531 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r | |
532 | IP4_SERVICE *IpSb;\r | |
533 | IP4_PROTOCOL *IpInstance;\r | |
534 | EFI_HANDLE NicHandle;\r | |
535 | EFI_STATUS Status;\r | |
536 | EFI_TPL OldTpl;\r | |
537 | INTN State;\r | |
c4a62a12 | 538 | BOOLEAN IsArp;\r |
772db4bb | 539 | \r |
540 | //\r | |
541 | // IP4 driver opens the MNP child, ARP children or the IP4_CONFIG protocol\r | |
542 | // by driver. So the ControllerHandle may be the MNP child handle, ARP child\r | |
543 | // handle, or the NIC (UNDI) handle because IP4_CONFIG protocol is installed\r | |
544 | // in the NIC handle.\r | |
545 | //\r | |
546 | //\r | |
547 | // First, check whether it is the IP4_CONFIG protocol being uninstalled.\r | |
548 | // IP4_CONFIG protocol is installed on the NIC handle. It isn't necessary\r | |
549 | // to clean up the default configuration if IP4_CONFIG is being stopped.\r | |
550 | //\r | |
551 | Status = gBS->OpenProtocol (\r | |
552 | ControllerHandle,\r | |
553 | &gEfiIp4ConfigProtocolGuid,\r | |
554 | NULL,\r | |
555 | This->DriverBindingHandle,\r | |
556 | ControllerHandle,\r | |
557 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
558 | );\r | |
559 | \r | |
560 | if (Status == EFI_SUCCESS) {\r | |
561 | //\r | |
562 | // Retrieve the IP4 service binding protocol. If failed, it is\r | |
563 | // likely that Ip4 ServiceBinding is uninstalled already. In this\r | |
564 | // case, return immediately.\r | |
565 | //\r | |
566 | Status = gBS->OpenProtocol (\r | |
567 | ControllerHandle,\r | |
568 | &gEfiIp4ServiceBindingProtocolGuid,\r | |
569 | (VOID **) &ServiceBinding,\r | |
570 | This->DriverBindingHandle,\r | |
571 | ControllerHandle,\r | |
572 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
573 | );\r | |
574 | \r | |
575 | if (EFI_ERROR (Status)) {\r | |
c4a62a12 | 576 | return EFI_DEVICE_ERROR;\r |
772db4bb | 577 | }\r |
578 | \r | |
579 | IpSb = IP4_SERVICE_FROM_PROTOCOL (ServiceBinding);\r | |
580 | \r | |
e48e37fc | 581 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 582 | \r |
5405e9a6 | 583 | if (IpSb->Ip4Config != NULL && (IpSb->State != IP4_SERVICE_DESTORY)) {\r |
772db4bb | 584 | \r |
585 | IpSb->Ip4Config->Stop (IpSb->Ip4Config);\r | |
586 | \r | |
587 | Status = gBS->CloseProtocol (\r | |
588 | ControllerHandle,\r | |
589 | &gEfiIp4ConfigProtocolGuid,\r | |
590 | IpSb->Image,\r | |
591 | ControllerHandle\r | |
592 | );\r | |
593 | \r | |
594 | if (EFI_ERROR (Status)) {\r | |
e48e37fc | 595 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 596 | return Status;\r |
597 | }\r | |
598 | \r | |
599 | //\r | |
600 | // If the auto configure hasn't complete, mark it as not started.\r | |
601 | //\r | |
602 | if (IpSb->State == IP4_SERVICE_STARTED) {\r | |
603 | IpSb->State = IP4_SERVICE_UNSTARTED;\r | |
604 | }\r | |
605 | \r | |
606 | IpSb->Ip4Config = NULL;\r | |
607 | gBS->CloseEvent (IpSb->DoneEvent);\r | |
608 | gBS->CloseEvent (IpSb->ReconfigEvent);\r | |
609 | }\r | |
610 | \r | |
e48e37fc | 611 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 612 | return EFI_SUCCESS;\r |
613 | }\r | |
614 | \r | |
615 | //\r | |
616 | // Either MNP or ARP protocol is being uninstalled. The controller\r | |
617 | // handle is either the MNP child or ARP child. But, the IP4's\r | |
618 | // service binding is installed on the NIC handle. So, need to open\r | |
619 | // the protocol info to find the NIC handle.\r | |
620 | //\r | |
c4a62a12 | 621 | IsArp = FALSE;\r |
772db4bb | 622 | NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiManagedNetworkProtocolGuid);\r |
623 | \r | |
624 | if (NicHandle == NULL) {\r | |
625 | NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiArpProtocolGuid);\r | |
c4a62a12 | 626 | IsArp = TRUE;\r |
772db4bb | 627 | }\r |
628 | \r | |
629 | if (NicHandle == NULL) {\r | |
c4a62a12 | 630 | return EFI_DEVICE_ERROR;\r |
772db4bb | 631 | }\r |
632 | \r | |
633 | //\r | |
634 | // Retrieve the IP4 service binding protocol\r | |
635 | //\r | |
636 | Status = gBS->OpenProtocol (\r | |
637 | NicHandle,\r | |
638 | &gEfiIp4ServiceBindingProtocolGuid,\r | |
639 | (VOID **) &ServiceBinding,\r | |
640 | This->DriverBindingHandle,\r | |
641 | NicHandle,\r | |
642 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
643 | );\r | |
644 | \r | |
645 | if (EFI_ERROR (Status)) {\r | |
646 | return EFI_DEVICE_ERROR;\r | |
647 | }\r | |
648 | \r | |
649 | IpSb = IP4_SERVICE_FROM_PROTOCOL (ServiceBinding);\r | |
650 | \r | |
e48e37fc | 651 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 652 | \r |
653 | if (IpSb->InDestory) {\r | |
e48e37fc | 654 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 655 | return EFI_SUCCESS;\r |
656 | }\r | |
657 | \r | |
c4a62a12 | 658 | if (IsArp) {\r |
e48e37fc | 659 | while (!IsListEmpty (&IpSb->Children)) {\r |
c4a62a12 | 660 | IpInstance = NET_LIST_HEAD (&IpSb->Children, IP4_PROTOCOL, Link);\r |
772db4bb | 661 | \r |
c4a62a12 | 662 | ServiceBinding->DestroyChild (ServiceBinding, IpInstance->Handle);\r |
663 | }\r | |
772db4bb | 664 | \r |
c4a62a12 | 665 | if (IpSb->NumChildren != 0) {\r |
666 | Status = EFI_DEVICE_ERROR;\r | |
667 | goto ON_ERROR;\r | |
668 | }\r | |
772db4bb | 669 | \r |
c4a62a12 | 670 | IpSb->InDestory = TRUE;\r |
772db4bb | 671 | \r |
c4a62a12 | 672 | State = IpSb->State;\r |
673 | IpSb->State = IP4_SERVICE_DESTORY;\r | |
772db4bb | 674 | \r |
c4a62a12 | 675 | //\r |
676 | // Clear the variable data.\r | |
677 | //\r | |
678 | Ip4ClearVariableData (IpSb);\r | |
772db4bb | 679 | \r |
c4a62a12 | 680 | //\r |
681 | // OK, clean other resources then uninstall the service binding protocol.\r | |
682 | //\r | |
683 | Status = Ip4CleanService (IpSb);\r | |
772db4bb | 684 | \r |
c4a62a12 | 685 | if (EFI_ERROR (Status)) {\r |
686 | IpSb->State = State;\r | |
687 | goto ON_ERROR;\r | |
688 | }\r | |
772db4bb | 689 | \r |
c4a62a12 | 690 | gBS->UninstallProtocolInterface (\r |
691 | NicHandle,\r | |
692 | &gEfiIp4ServiceBindingProtocolGuid,\r | |
693 | ServiceBinding\r | |
694 | );\r | |
772db4bb | 695 | \r |
e48e37fc | 696 | gBS->FreePool (IpSb);\r |
c4a62a12 | 697 | } else if (NumberOfChildren == 0) {\r |
698 | IpSb->InDestory = TRUE;\r | |
699 | \r | |
700 | State = IpSb->State;\r | |
701 | IpSb->State = IP4_SERVICE_DESTORY;\r | |
702 | \r | |
703 | //\r | |
704 | // Clear the variable data.\r | |
705 | //\r | |
706 | Ip4ClearVariableData (IpSb);\r | |
707 | \r | |
708 | //\r | |
709 | // OK, clean other resources then uninstall the service binding protocol.\r | |
710 | //\r | |
711 | Status = Ip4CleanService (IpSb);\r | |
712 | \r | |
713 | if (EFI_ERROR (Status)) {\r | |
714 | IpSb->State = State;\r | |
715 | goto ON_ERROR;\r | |
716 | }\r | |
717 | \r | |
718 | gBS->UninstallProtocolInterface (\r | |
719 | NicHandle,\r | |
720 | &gEfiIp4ServiceBindingProtocolGuid,\r | |
721 | ServiceBinding\r | |
722 | );\r | |
723 | \r | |
e48e37fc | 724 | gBS->FreePool (IpSb);\r |
c4a62a12 | 725 | } else {\r |
726 | \r | |
e48e37fc | 727 | while (!IsListEmpty (&IpSb->Children)) {\r |
c4a62a12 | 728 | IpInstance = NET_LIST_HEAD (&IpSb->Children, IP4_PROTOCOL, Link);\r |
729 | \r | |
730 | ServiceBinding->DestroyChild (ServiceBinding, IpInstance->Handle);\r | |
731 | }\r | |
732 | \r | |
733 | if (IpSb->NumChildren != 0) {\r | |
734 | Status = EFI_DEVICE_ERROR;\r | |
735 | }\r | |
736 | }\r | |
772db4bb | 737 | \r |
738 | ON_ERROR:\r | |
c4a62a12 | 739 | \r |
e48e37fc | 740 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 741 | return Status;\r |
742 | }\r | |
743 | \r | |
744 | \r | |
745 | /**\r | |
746 | Creates a child handle with a set of I/O services.\r | |
747 | \r | |
5405e9a6 | 748 | @param This Protocol instance pointer.\r |
749 | @param ChildHandle Pointer to the handle of the child to create. If it is NULL,\r | |
750 | then a new handle is created. If it is not NULL, then the\r | |
751 | I/O services are added to the existing child handle.\r | |
772db4bb | 752 | \r |
5405e9a6 | 753 | @retval EFI_SUCCES The child handle was created with the I/O services\r |
754 | @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r | |
755 | @retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create\r | |
756 | the child\r | |
757 | @retval other The child handle was not created\r | |
772db4bb | 758 | \r |
759 | **/\r | |
760 | EFI_STATUS\r | |
761 | EFIAPI\r | |
762 | Ip4ServiceBindingCreateChild (\r | |
763 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
5405e9a6 | 764 | IN OUT EFI_HANDLE *ChildHandle\r |
772db4bb | 765 | )\r |
766 | {\r | |
767 | IP4_SERVICE *IpSb;\r | |
768 | IP4_PROTOCOL *IpInstance;\r | |
769 | EFI_TPL OldTpl;\r | |
770 | EFI_STATUS Status;\r | |
771 | VOID *Mnp;\r | |
772 | \r | |
773 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
774 | return EFI_INVALID_PARAMETER;\r | |
775 | }\r | |
776 | \r | |
777 | IpSb = IP4_SERVICE_FROM_PROTOCOL (This);\r | |
e48e37fc | 778 | IpInstance = AllocatePool (sizeof (IP4_PROTOCOL));\r |
772db4bb | 779 | \r |
780 | if (IpInstance == NULL) {\r | |
781 | return EFI_OUT_OF_RESOURCES;\r | |
782 | }\r | |
783 | \r | |
784 | Ip4InitProtocol (IpSb, IpInstance);\r | |
785 | \r | |
786 | //\r | |
787 | // Install Ip4 onto ChildHandle\r | |
788 | //\r | |
789 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
790 | ChildHandle,\r | |
791 | &gEfiIp4ProtocolGuid,\r | |
792 | &IpInstance->Ip4Proto,\r | |
793 | NULL\r | |
794 | );\r | |
795 | \r | |
796 | if (EFI_ERROR (Status)) {\r | |
797 | goto ON_ERROR;\r | |
798 | }\r | |
799 | \r | |
800 | IpInstance->Handle = *ChildHandle;\r | |
801 | \r | |
802 | //\r | |
803 | // Open the Managed Network protocol BY_CHILD.\r | |
804 | //\r | |
805 | Status = gBS->OpenProtocol (\r | |
806 | IpSb->MnpChildHandle,\r | |
807 | &gEfiManagedNetworkProtocolGuid,\r | |
808 | (VOID **) &Mnp,\r | |
809 | gIp4DriverBinding.DriverBindingHandle,\r | |
810 | IpInstance->Handle,\r | |
811 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
812 | );\r | |
813 | if (EFI_ERROR (Status)) {\r | |
814 | gBS->UninstallMultipleProtocolInterfaces (\r | |
815 | ChildHandle,\r | |
816 | &gEfiIp4ProtocolGuid,\r | |
817 | &IpInstance->Ip4Proto,\r | |
818 | NULL\r | |
819 | );\r | |
820 | \r | |
821 | goto ON_ERROR;\r | |
822 | }\r | |
823 | \r | |
824 | //\r | |
825 | // Insert it into the service binding instance.\r | |
826 | //\r | |
e48e37fc | 827 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 828 | \r |
e48e37fc | 829 | InsertTailList (&IpSb->Children, &IpInstance->Link);\r |
772db4bb | 830 | IpSb->NumChildren++;\r |
831 | \r | |
e48e37fc | 832 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 833 | \r |
834 | ON_ERROR:\r | |
835 | \r | |
836 | if (EFI_ERROR (Status)) {\r | |
837 | \r | |
838 | Ip4CleanProtocol (IpInstance);\r | |
839 | \r | |
e48e37fc | 840 | gBS->FreePool (IpInstance);\r |
772db4bb | 841 | }\r |
842 | \r | |
843 | return Status;\r | |
844 | }\r | |
845 | \r | |
846 | \r | |
847 | /**\r | |
848 | Destroys a child handle with a set of I/O services.\r | |
849 | \r | |
5405e9a6 | 850 | @param This Protocol instance pointer.\r |
851 | @param ChildHandle Handle of the child to destroy\r | |
852 | \r | |
853 | @retval EFI_SUCCES The I/O services were removed from the child handle\r | |
854 | @retval EFI_UNSUPPORTED The child handle does not support the I/O services\r | |
855 | that are being removed.\r | |
856 | @retval EFI_INVALID_PARAMETER Child handle is not a valid EFI Handle.\r | |
857 | @retval EFI_ACCESS_DENIED The child handle could not be destroyed because its\r | |
858 | I/O services are being used.\r | |
859 | @retval other The child handle was not destroyed\r | |
772db4bb | 860 | \r |
861 | **/\r | |
862 | EFI_STATUS\r | |
863 | EFIAPI\r | |
864 | Ip4ServiceBindingDestroyChild (\r | |
865 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
866 | IN EFI_HANDLE ChildHandle\r | |
867 | )\r | |
868 | {\r | |
869 | EFI_STATUS Status;\r | |
870 | IP4_SERVICE *IpSb;\r | |
871 | IP4_PROTOCOL *IpInstance;\r | |
872 | EFI_IP4_PROTOCOL *Ip4;\r | |
873 | EFI_TPL OldTpl;\r | |
874 | INTN State;\r | |
875 | \r | |
876 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
877 | return EFI_INVALID_PARAMETER;\r | |
878 | }\r | |
879 | \r | |
880 | //\r | |
881 | // Retrieve the private context data structures\r | |
882 | //\r | |
883 | IpSb = IP4_SERVICE_FROM_PROTOCOL (This);\r | |
884 | \r | |
885 | Status = gBS->OpenProtocol (\r | |
886 | ChildHandle,\r | |
887 | &gEfiIp4ProtocolGuid,\r | |
888 | (VOID **) &Ip4,\r | |
889 | gIp4DriverBinding.DriverBindingHandle,\r | |
890 | ChildHandle,\r | |
891 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
892 | );\r | |
893 | \r | |
894 | if (EFI_ERROR (Status)) {\r | |
895 | return EFI_UNSUPPORTED;\r | |
896 | }\r | |
897 | \r | |
898 | IpInstance = IP4_INSTANCE_FROM_PROTOCOL (Ip4);\r | |
899 | \r | |
900 | if (IpInstance->Service != IpSb) {\r | |
901 | return EFI_INVALID_PARAMETER;\r | |
902 | }\r | |
903 | \r | |
e48e37fc | 904 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 905 | \r |
906 | //\r | |
907 | // A child can be destoried more than once. For example,\r | |
908 | // Ip4DriverBindingStop will destory all of its children.\r | |
909 | // when UDP driver is being stopped, it will destory all\r | |
910 | // the IP child it opens.\r | |
911 | //\r | |
912 | if (IpInstance->State == IP4_STATE_DESTORY) {\r | |
e48e37fc | 913 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 914 | return EFI_SUCCESS;\r |
915 | }\r | |
916 | \r | |
917 | State = IpInstance->State;\r | |
918 | IpInstance->State = IP4_STATE_DESTORY;\r | |
919 | \r | |
920 | //\r | |
921 | // Close the Managed Network protocol.\r | |
922 | //\r | |
923 | gBS->CloseProtocol (\r | |
924 | IpSb->MnpChildHandle,\r | |
925 | &gEfiManagedNetworkProtocolGuid,\r | |
926 | gIp4DriverBinding.DriverBindingHandle,\r | |
927 | ChildHandle\r | |
928 | );\r | |
929 | \r | |
930 | //\r | |
931 | // Uninstall the IP4 protocol first. Many thing happens during\r | |
932 | // this:\r | |
933 | // 1. The consumer of the IP4 protocol will be stopped if it\r | |
934 | // opens the protocol BY_DRIVER. For eaxmple, if MNP driver is\r | |
935 | // stopped, IP driver's stop function will be called, and uninstall\r | |
936 | // EFI_IP4_PROTOCOL will trigger the UDP's stop function. This\r | |
937 | // makes it possible to create the network stack bottom up, and\r | |
938 | // stop it top down.\r | |
939 | // 2. the upper layer will recycle the received packet. The recycle\r | |
940 | // event's TPL is higher than this function. The recycle events\r | |
941 | // will be called back before preceeding. If any packets not recycled,\r | |
942 | // that means there is a resource leak.\r | |
943 | //\r | |
944 | Status = gBS->UninstallProtocolInterface (\r | |
945 | ChildHandle,\r | |
946 | &gEfiIp4ProtocolGuid,\r | |
947 | &IpInstance->Ip4Proto\r | |
948 | );\r | |
949 | \r | |
950 | if (EFI_ERROR (Status)) {\r | |
951 | goto ON_ERROR;\r | |
952 | }\r | |
953 | \r | |
954 | Status = Ip4CleanProtocol (IpInstance);\r | |
955 | \r | |
956 | Ip4SetVariableData (IpSb);\r | |
957 | \r | |
958 | if (EFI_ERROR (Status)) {\r | |
959 | gBS->InstallMultipleProtocolInterfaces (\r | |
960 | &ChildHandle,\r | |
961 | &gEfiIp4ProtocolGuid,\r | |
962 | Ip4,\r | |
963 | NULL\r | |
964 | );\r | |
965 | \r | |
966 | goto ON_ERROR;\r | |
967 | }\r | |
968 | \r | |
e48e37fc | 969 | RemoveEntryList (&IpInstance->Link);\r |
772db4bb | 970 | IpSb->NumChildren--;\r |
971 | \r | |
e48e37fc | 972 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 973 | \r |
e48e37fc | 974 | gBS->FreePool (IpInstance);\r |
772db4bb | 975 | return EFI_SUCCESS;\r |
976 | \r | |
977 | ON_ERROR:\r | |
978 | IpInstance->State = State;\r | |
e48e37fc | 979 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 980 | \r |
981 | return Status;\r | |
982 | }\r |