]>
Commit | Line | Data |
---|---|---|
772db4bb | 1 | /** @file\r |
dab714aa | 2 | Implementation of Mtftp drivers.\r |
e2851998 | 3 | \r |
75dce340 | 4 | Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 5 | This program and the accompanying materials\r |
772db4bb | 6 | are licensed and made available under the terms and conditions of the BSD License\r |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
dab714aa | 8 | http://opensource.org/licenses/bsd-license.php<BR>\r |
772db4bb | 9 | \r |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
772db4bb | 13 | **/\r |
14 | \r | |
15 | #include "Mtftp4Impl.h"\r | |
16 | \r | |
17 | EFI_DRIVER_BINDING_PROTOCOL gMtftp4DriverBinding = {\r | |
18 | Mtftp4DriverBindingSupported,\r | |
19 | Mtftp4DriverBindingStart,\r | |
20 | Mtftp4DriverBindingStop,\r | |
21 | 0xa,\r | |
22 | NULL,\r | |
23 | NULL\r | |
24 | };\r | |
25 | \r | |
26 | EFI_SERVICE_BINDING_PROTOCOL gMtftp4ServiceBindingTemplete = {\r | |
27 | Mtftp4ServiceBindingCreateChild,\r | |
28 | Mtftp4ServiceBindingDestroyChild\r | |
29 | };\r | |
30 | \r | |
dab714aa | 31 | \r |
32 | /**\r | |
33 | The driver entry point which installs multiple protocols to the ImageHandle.\r | |
34 | \r | |
35 | @param ImageHandle The MTFTP's image handle.\r | |
36 | @param SystemTable The system table.\r | |
37 | \r | |
e2851998 | 38 | @retval EFI_SUCCESS The handles are successfully installed on the image.\r |
dab714aa | 39 | @retval others some EFI_ERROR occured.\r |
40 | \r | |
41 | **/\r | |
772db4bb | 42 | EFI_STATUS\r |
43 | EFIAPI\r | |
44 | Mtftp4DriverEntryPoint (\r | |
45 | IN EFI_HANDLE ImageHandle,\r | |
46 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
47 | )\r | |
772db4bb | 48 | {\r |
83cbd279 | 49 | return EfiLibInstallDriverBindingComponentName2 (\r |
772db4bb | 50 | ImageHandle,\r |
51 | SystemTable,\r | |
52 | &gMtftp4DriverBinding,\r | |
53 | ImageHandle,\r | |
54 | &gMtftp4ComponentName,\r | |
83cbd279 | 55 | &gMtftp4ComponentName2\r |
772db4bb | 56 | );\r |
57 | }\r | |
58 | \r | |
59 | \r | |
60 | /**\r | |
61 | Test whether MTFTP driver support this controller.\r | |
62 | \r | |
63 | @param This The MTFTP driver binding instance\r | |
64 | @param Controller The controller to test\r | |
65 | @param RemainingDevicePath The remaining device path\r | |
66 | \r | |
67 | @retval EFI_SUCCESS The controller has UDP service binding protocol\r | |
68 | installed, MTFTP can support it.\r | |
5be56d99 | 69 | @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r |
e2851998 | 70 | RemainingDevicePath is already being managed by\r |
5be56d99 | 71 | the driver specified by This.\r |
72 | @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r | |
e2851998 | 73 | RemainingDevicePath is already being managed by a\r |
74 | different driver or an application that requires\r | |
5be56d99 | 75 | exclusive access.\r |
76 | @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r | |
e2851998 | 77 | RemainingDevicePath is not supported by the driver\r |
5be56d99 | 78 | specified by This.\r |
772db4bb | 79 | \r |
80 | **/\r | |
81 | EFI_STATUS\r | |
dab714aa | 82 | EFIAPI\r |
772db4bb | 83 | Mtftp4DriverBindingSupported (\r |
84 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
85 | IN EFI_HANDLE Controller,\r | |
86 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
87 | )\r | |
88 | {\r | |
89 | EFI_STATUS Status;\r | |
90 | \r | |
91 | Status = gBS->OpenProtocol (\r | |
92 | Controller,\r | |
93 | &gEfiUdp4ServiceBindingProtocolGuid,\r | |
94 | NULL,\r | |
95 | This->DriverBindingHandle,\r | |
96 | Controller,\r | |
97 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
98 | );\r | |
99 | \r | |
100 | return Status;\r | |
101 | }\r | |
102 | \r | |
103 | \r | |
104 | /**\r | |
e2851998 | 105 | Config a NULL UDP that is used to keep the connection between UDP and MTFTP.\r |
106 | \r | |
107 | Just leave the Udp child unconfigured. When UDP is unloaded,\r | |
dab714aa | 108 | MTFTP will be informed with DriverBinding Stop.\r |
772db4bb | 109 | \r |
b45b45b2 | 110 | @param UdpIo The UDP_IO to configure\r |
772db4bb | 111 | @param Context The opaque parameter to the callback\r |
112 | \r | |
113 | @retval EFI_SUCCESS It always return EFI_SUCCESS directly.\r | |
114 | \r | |
115 | **/\r | |
116 | EFI_STATUS\r | |
e798cd87 | 117 | EFIAPI\r |
772db4bb | 118 | Mtftp4ConfigNullUdp (\r |
b45b45b2 | 119 | IN UDP_IO *UdpIo,\r |
772db4bb | 120 | IN VOID *Context\r |
121 | )\r | |
122 | {\r | |
123 | return EFI_SUCCESS;\r | |
124 | }\r | |
125 | \r | |
126 | \r | |
127 | /**\r | |
128 | Create then initialize a MTFTP service binding instance.\r | |
129 | \r | |
130 | @param Controller The controller to install the MTFTP service\r | |
131 | binding on\r | |
132 | @param Image The driver binding image of the MTFTP driver\r | |
133 | @param Service The variable to receive the created service\r | |
134 | binding instance.\r | |
135 | \r | |
136 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to create the instance\r | |
137 | @retval EFI_DEVICE_ERROR Failed to create a NULL UDP port to keep\r | |
138 | connection with UDP.\r | |
139 | @retval EFI_SUCCESS The service instance is created for the\r | |
140 | controller.\r | |
141 | \r | |
142 | **/\r | |
143 | EFI_STATUS\r | |
144 | Mtftp4CreateService (\r | |
dab714aa | 145 | IN EFI_HANDLE Controller,\r |
146 | IN EFI_HANDLE Image,\r | |
147 | OUT MTFTP4_SERVICE **Service\r | |
772db4bb | 148 | )\r |
149 | {\r | |
150 | MTFTP4_SERVICE *MtftpSb;\r | |
151 | EFI_STATUS Status;\r | |
152 | \r | |
153 | *Service = NULL;\r | |
e48e37fc | 154 | MtftpSb = AllocatePool (sizeof (MTFTP4_SERVICE));\r |
772db4bb | 155 | \r |
156 | if (MtftpSb == NULL) {\r | |
157 | return EFI_OUT_OF_RESOURCES;\r | |
158 | }\r | |
159 | \r | |
160 | MtftpSb->Signature = MTFTP4_SERVICE_SIGNATURE;\r | |
161 | MtftpSb->ServiceBinding = gMtftp4ServiceBindingTemplete;\r | |
75dce340 | 162 | MtftpSb->InDestroy = FALSE;\r |
772db4bb | 163 | MtftpSb->ChildrenNum = 0;\r |
e48e37fc | 164 | InitializeListHead (&MtftpSb->Children);\r |
772db4bb | 165 | \r |
166 | MtftpSb->Timer = NULL;\r | |
167 | MtftpSb->TimerToGetMap = NULL;\r | |
168 | MtftpSb->Controller = Controller;\r | |
169 | MtftpSb->Image = Image;\r | |
170 | MtftpSb->ConnectUdp = NULL;\r | |
171 | \r | |
172 | //\r | |
173 | // Create the timer and a udp to be notified when UDP is uninstalled\r | |
174 | //\r | |
175 | Status = gBS->CreateEvent (\r | |
176 | EVT_NOTIFY_SIGNAL | EVT_TIMER,\r | |
e48e37fc | 177 | TPL_CALLBACK,\r |
772db4bb | 178 | Mtftp4OnTimerTick,\r |
179 | MtftpSb,\r | |
180 | &MtftpSb->Timer\r | |
181 | );\r | |
182 | \r | |
183 | if (EFI_ERROR (Status)) {\r | |
766c7483 | 184 | FreePool (MtftpSb);\r |
772db4bb | 185 | return Status;\r |
186 | }\r | |
187 | \r | |
188 | //\r | |
189 | // Create the timer used to time out the procedure which is used to\r | |
190 | // get the default IP address.\r | |
191 | //\r | |
192 | Status = gBS->CreateEvent (\r | |
193 | EVT_TIMER,\r | |
e48e37fc | 194 | TPL_CALLBACK,\r |
772db4bb | 195 | NULL,\r |
196 | NULL,\r | |
197 | &MtftpSb->TimerToGetMap\r | |
198 | );\r | |
199 | if (EFI_ERROR (Status)) {\r | |
200 | gBS->CloseEvent (MtftpSb->Timer);\r | |
766c7483 | 201 | FreePool (MtftpSb);\r |
772db4bb | 202 | return Status;\r |
203 | }\r | |
204 | \r | |
b45b45b2 | 205 | MtftpSb->ConnectUdp = UdpIoCreateIo (\r |
206 | Controller,\r | |
207 | Image,\r | |
208 | Mtftp4ConfigNullUdp,\r | |
209 | UDP_IO_UDP4_VERSION,\r | |
210 | NULL\r | |
211 | );\r | |
772db4bb | 212 | \r |
213 | if (MtftpSb->ConnectUdp == NULL) {\r | |
214 | gBS->CloseEvent (MtftpSb->TimerToGetMap);\r | |
215 | gBS->CloseEvent (MtftpSb->Timer);\r | |
766c7483 | 216 | FreePool (MtftpSb);\r |
772db4bb | 217 | return EFI_DEVICE_ERROR;\r |
218 | }\r | |
219 | \r | |
220 | *Service = MtftpSb;\r | |
221 | return EFI_SUCCESS;\r | |
222 | }\r | |
223 | \r | |
224 | \r | |
225 | /**\r | |
226 | Release all the resource used the MTFTP service binding instance.\r | |
227 | \r | |
228 | @param MtftpSb The MTFTP service binding instance.\r | |
229 | \r | |
772db4bb | 230 | **/\r |
231 | VOID\r | |
232 | Mtftp4CleanService (\r | |
233 | IN MTFTP4_SERVICE *MtftpSb\r | |
234 | )\r | |
235 | {\r | |
b45b45b2 | 236 | UdpIoFreeIo (MtftpSb->ConnectUdp);\r |
772db4bb | 237 | gBS->CloseEvent (MtftpSb->TimerToGetMap);\r |
238 | gBS->CloseEvent (MtftpSb->Timer);\r | |
239 | }\r | |
240 | \r | |
241 | \r | |
242 | /**\r | |
e2851998 | 243 | Start the MTFTP driver on this controller.\r |
244 | \r | |
dab714aa | 245 | MTFTP driver will install a MTFTP SERVICE BINDING protocol on the supported\r |
772db4bb | 246 | controller, which can be used to create/destroy MTFTP children.\r |
247 | \r | |
248 | @param This The MTFTP driver binding protocol.\r | |
249 | @param Controller The controller to manage.\r | |
250 | @param RemainingDevicePath Remaining device path.\r | |
251 | \r | |
252 | @retval EFI_ALREADY_STARTED The MTFTP service binding protocol has been\r | |
253 | started on the controller.\r | |
254 | @retval EFI_SUCCESS The MTFTP service binding is installed on the\r | |
255 | controller.\r | |
256 | \r | |
257 | **/\r | |
258 | EFI_STATUS\r | |
dab714aa | 259 | EFIAPI\r |
772db4bb | 260 | Mtftp4DriverBindingStart (\r |
261 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
262 | IN EFI_HANDLE Controller,\r | |
263 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
264 | )\r | |
265 | {\r | |
266 | MTFTP4_SERVICE *MtftpSb;\r | |
267 | EFI_STATUS Status;\r | |
268 | \r | |
269 | //\r | |
270 | // Directly return if driver is already running.\r | |
271 | //\r | |
272 | Status = gBS->OpenProtocol (\r | |
273 | Controller,\r | |
274 | &gEfiMtftp4ServiceBindingProtocolGuid,\r | |
275 | NULL,\r | |
276 | This->DriverBindingHandle,\r | |
277 | Controller,\r | |
278 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
279 | );\r | |
280 | \r | |
281 | if (Status == EFI_SUCCESS) {\r | |
282 | return EFI_ALREADY_STARTED;\r | |
283 | }\r | |
284 | \r | |
285 | Status = Mtftp4CreateService (Controller, This->DriverBindingHandle, &MtftpSb);\r | |
286 | \r | |
287 | if (EFI_ERROR (Status)) {\r | |
288 | return Status;\r | |
289 | }\r | |
e2851998 | 290 | ASSERT (MtftpSb != NULL);\r |
772db4bb | 291 | \r |
292 | Status = gBS->SetTimer (MtftpSb->Timer, TimerPeriodic, TICKS_PER_SECOND);\r | |
293 | \r | |
294 | if (EFI_ERROR (Status)) {\r | |
295 | goto ON_ERROR;\r | |
296 | }\r | |
297 | \r | |
298 | //\r | |
299 | // Install the Mtftp4ServiceBinding Protocol onto Controller\r | |
300 | //\r | |
301 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
302 | &Controller,\r | |
303 | &gEfiMtftp4ServiceBindingProtocolGuid,\r | |
304 | &MtftpSb->ServiceBinding,\r | |
305 | NULL\r | |
306 | );\r | |
307 | \r | |
308 | if (EFI_ERROR (Status)) {\r | |
309 | goto ON_ERROR;\r | |
310 | }\r | |
311 | \r | |
312 | return EFI_SUCCESS;\r | |
313 | \r | |
314 | ON_ERROR:\r | |
315 | Mtftp4CleanService (MtftpSb);\r | |
766c7483 | 316 | FreePool (MtftpSb);\r |
772db4bb | 317 | \r |
318 | return Status;\r | |
319 | }\r | |
320 | \r | |
321 | \r | |
322 | /**\r | |
323 | Stop the MTFTP driver on controller. The controller is a UDP\r | |
324 | child handle.\r | |
325 | \r | |
326 | @param This The MTFTP driver binding protocol\r | |
327 | @param Controller The controller to stop\r | |
328 | @param NumberOfChildren The number of children\r | |
329 | @param ChildHandleBuffer The array of the child handle.\r | |
330 | \r | |
331 | @retval EFI_SUCCESS The driver is stopped on the controller.\r | |
332 | @retval EFI_DEVICE_ERROR Failed to stop the driver on the controller.\r | |
333 | \r | |
334 | **/\r | |
335 | EFI_STATUS\r | |
dab714aa | 336 | EFIAPI\r |
772db4bb | 337 | Mtftp4DriverBindingStop (\r |
dab714aa | 338 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
339 | IN EFI_HANDLE Controller,\r | |
340 | IN UINTN NumberOfChildren,\r | |
341 | IN EFI_HANDLE *ChildHandleBuffer\r | |
772db4bb | 342 | )\r |
343 | {\r | |
344 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r | |
345 | MTFTP4_SERVICE *MtftpSb;\r | |
346 | MTFTP4_PROTOCOL *Instance;\r | |
347 | EFI_HANDLE NicHandle;\r | |
348 | EFI_STATUS Status;\r | |
349 | EFI_TPL OldTpl;\r | |
350 | \r | |
351 | //\r | |
352 | // MTFTP driver opens UDP child, So, Controller is a UDP\r | |
353 | // child handle. Locate the Nic handle first. Then get the\r | |
354 | // MTFTP private data back.\r | |
355 | //\r | |
356 | NicHandle = NetLibGetNicHandle (Controller, &gEfiUdp4ProtocolGuid);\r | |
357 | \r | |
358 | if (NicHandle == NULL) {\r | |
c4a62a12 | 359 | return EFI_DEVICE_ERROR;\r |
772db4bb | 360 | }\r |
361 | \r | |
362 | Status = gBS->OpenProtocol (\r | |
363 | NicHandle,\r | |
364 | &gEfiMtftp4ServiceBindingProtocolGuid,\r | |
365 | (VOID **) &ServiceBinding,\r | |
366 | This->DriverBindingHandle,\r | |
367 | NicHandle,\r | |
368 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
369 | );\r | |
370 | \r | |
371 | if (EFI_ERROR (Status)) {\r | |
372 | return EFI_DEVICE_ERROR;\r | |
373 | }\r | |
374 | \r | |
375 | MtftpSb = MTFTP4_SERVICE_FROM_THIS (ServiceBinding);\r | |
376 | \r | |
75dce340 | 377 | if (MtftpSb->InDestroy) {\r |
772db4bb | 378 | return EFI_SUCCESS;\r |
379 | }\r | |
380 | \r | |
e48e37fc | 381 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 382 | \r |
c4a62a12 | 383 | if (NumberOfChildren == 0) {\r |
772db4bb | 384 | \r |
75dce340 | 385 | MtftpSb->InDestroy = TRUE;\r |
772db4bb | 386 | \r |
c4a62a12 | 387 | gBS->UninstallProtocolInterface (\r |
388 | NicHandle,\r | |
389 | &gEfiMtftp4ServiceBindingProtocolGuid,\r | |
390 | ServiceBinding\r | |
391 | );\r | |
772db4bb | 392 | \r |
c4a62a12 | 393 | Mtftp4CleanService (MtftpSb);\r |
772db4bb | 394 | \r |
766c7483 | 395 | FreePool (MtftpSb);\r |
c4a62a12 | 396 | } else {\r |
772db4bb | 397 | \r |
e48e37fc | 398 | while (!IsListEmpty (&MtftpSb->Children)) {\r |
c4a62a12 | 399 | Instance = NET_LIST_HEAD (&MtftpSb->Children, MTFTP4_PROTOCOL, Link);\r |
400 | Mtftp4ServiceBindingDestroyChild (ServiceBinding, Instance->Handle);\r | |
401 | }\r | |
772db4bb | 402 | \r |
c4a62a12 | 403 | if (MtftpSb->ChildrenNum != 0) {\r |
404 | Status = EFI_DEVICE_ERROR;\r | |
405 | }\r | |
406 | }\r | |
772db4bb | 407 | \r |
e48e37fc | 408 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 409 | return Status;\r |
410 | }\r | |
411 | \r | |
412 | \r | |
413 | /**\r | |
414 | Initialize a MTFTP protocol instance which is the child of MtftpSb.\r | |
415 | \r | |
416 | @param MtftpSb The MTFTP service binding protocol.\r | |
417 | @param Instance The MTFTP instance to initialize.\r | |
418 | \r | |
772db4bb | 419 | **/\r |
420 | VOID\r | |
421 | Mtftp4InitProtocol (\r | |
dab714aa | 422 | IN MTFTP4_SERVICE *MtftpSb,\r |
423 | OUT MTFTP4_PROTOCOL *Instance\r | |
772db4bb | 424 | )\r |
425 | {\r | |
e48e37fc | 426 | ZeroMem (Instance, sizeof (MTFTP4_PROTOCOL));\r |
772db4bb | 427 | \r |
428 | Instance->Signature = MTFTP4_PROTOCOL_SIGNATURE;\r | |
e48e37fc | 429 | InitializeListHead (&Instance->Link);\r |
687a2e5f | 430 | CopyMem (&Instance->Mtftp4, &gMtftp4ProtocolTemplate, sizeof (Instance->Mtftp4));\r |
772db4bb | 431 | Instance->State = MTFTP4_STATE_UNCONFIGED;\r |
75dce340 | 432 | Instance->InDestroy = FALSE;\r |
772db4bb | 433 | Instance->Service = MtftpSb;\r |
434 | \r | |
e48e37fc | 435 | InitializeListHead (&Instance->Blocks);\r |
772db4bb | 436 | }\r |
437 | \r | |
438 | \r | |
439 | /**\r | |
440 | Create a MTFTP child for the service binding instance, then\r | |
441 | install the MTFTP protocol to the ChildHandle.\r | |
442 | \r | |
443 | @param This The MTFTP service binding instance.\r | |
444 | @param ChildHandle The Child handle to install the MTFTP protocol.\r | |
445 | \r | |
446 | @retval EFI_INVALID_PARAMETER The parameter is invalid.\r | |
447 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource for the new child.\r | |
448 | @retval EFI_SUCCESS The child is successfully create.\r | |
449 | \r | |
450 | **/\r | |
451 | EFI_STATUS\r | |
dab714aa | 452 | EFIAPI\r |
772db4bb | 453 | Mtftp4ServiceBindingCreateChild (\r |
454 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
dab714aa | 455 | IN EFI_HANDLE *ChildHandle\r |
772db4bb | 456 | )\r |
457 | {\r | |
458 | MTFTP4_SERVICE *MtftpSb;\r | |
459 | MTFTP4_PROTOCOL *Instance;\r | |
460 | EFI_STATUS Status;\r | |
461 | EFI_TPL OldTpl;\r | |
462 | VOID *Udp4;\r | |
463 | \r | |
464 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
465 | return EFI_INVALID_PARAMETER;\r | |
466 | }\r | |
467 | \r | |
e48e37fc | 468 | Instance = AllocatePool (sizeof (*Instance));\r |
772db4bb | 469 | \r |
470 | if (Instance == NULL) {\r | |
471 | return EFI_OUT_OF_RESOURCES;\r | |
472 | }\r | |
473 | \r | |
474 | MtftpSb = MTFTP4_SERVICE_FROM_THIS (This);\r | |
475 | \r | |
476 | Mtftp4InitProtocol (MtftpSb, Instance);\r | |
477 | \r | |
b45b45b2 | 478 | Instance->UnicastPort = UdpIoCreateIo (\r |
772db4bb | 479 | MtftpSb->Controller,\r |
480 | MtftpSb->Image,\r | |
481 | Mtftp4ConfigNullUdp,\r | |
b45b45b2 | 482 | UDP_IO_UDP4_VERSION,\r |
772db4bb | 483 | Instance\r |
484 | );\r | |
485 | \r | |
486 | if (Instance->UnicastPort == NULL) {\r | |
766c7483 | 487 | FreePool (Instance);\r |
772db4bb | 488 | return EFI_OUT_OF_RESOURCES;\r |
489 | }\r | |
490 | \r | |
491 | //\r | |
492 | // Install the MTFTP protocol onto ChildHandle\r | |
493 | //\r | |
494 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
495 | ChildHandle,\r | |
496 | &gEfiMtftp4ProtocolGuid,\r | |
497 | &Instance->Mtftp4,\r | |
498 | NULL\r | |
499 | );\r | |
500 | \r | |
501 | if (EFI_ERROR (Status)) {\r | |
502 | goto ON_ERROR;\r | |
503 | }\r | |
504 | \r | |
505 | Instance->Handle = *ChildHandle;\r | |
506 | \r | |
507 | //\r | |
508 | // Open the Udp4 protocol BY_CHILD.\r | |
509 | //\r | |
510 | Status = gBS->OpenProtocol (\r | |
511 | MtftpSb->ConnectUdp->UdpHandle,\r | |
512 | &gEfiUdp4ProtocolGuid,\r | |
513 | (VOID **) &Udp4,\r | |
514 | gMtftp4DriverBinding.DriverBindingHandle,\r | |
515 | Instance->Handle,\r | |
516 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
517 | );\r | |
518 | if (EFI_ERROR (Status)) {\r | |
519 | gBS->UninstallMultipleProtocolInterfaces (\r | |
520 | Instance->Handle,\r | |
521 | &gEfiMtftp4ProtocolGuid,\r | |
522 | &Instance->Mtftp4,\r | |
523 | NULL\r | |
524 | );\r | |
525 | \r | |
526 | goto ON_ERROR;\r | |
527 | }\r | |
528 | \r | |
529 | //\r | |
530 | // Add it to the parent's child list.\r | |
531 | //\r | |
e48e37fc | 532 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 533 | \r |
e48e37fc | 534 | InsertTailList (&MtftpSb->Children, &Instance->Link);\r |
772db4bb | 535 | MtftpSb->ChildrenNum++;\r |
536 | \r | |
e48e37fc | 537 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 538 | \r |
539 | ON_ERROR:\r | |
540 | \r | |
541 | if (EFI_ERROR (Status)) {\r | |
b45b45b2 | 542 | UdpIoFreeIo (Instance->UnicastPort);\r |
766c7483 | 543 | FreePool (Instance);\r |
772db4bb | 544 | }\r |
545 | \r | |
546 | return Status;\r | |
547 | }\r | |
548 | \r | |
549 | \r | |
550 | /**\r | |
75dce340 | 551 | Destroy one of the service binding's child.\r |
772db4bb | 552 | \r |
553 | @param This The service binding instance\r | |
75dce340 | 554 | @param ChildHandle The child handle to destroy\r |
772db4bb | 555 | \r |
556 | @retval EFI_INVALID_PARAMETER The parameter is invaid.\r | |
75dce340 | 557 | @retval EFI_UNSUPPORTED The child may have already been destroyed.\r |
558 | @retval EFI_SUCCESS The child is destroyed and removed from the\r | |
772db4bb | 559 | parent's child list.\r |
560 | \r | |
561 | **/\r | |
562 | EFI_STATUS\r | |
dab714aa | 563 | EFIAPI\r |
772db4bb | 564 | Mtftp4ServiceBindingDestroyChild (\r |
565 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
566 | IN EFI_HANDLE ChildHandle\r | |
567 | )\r | |
568 | {\r | |
569 | MTFTP4_SERVICE *MtftpSb;\r | |
570 | MTFTP4_PROTOCOL *Instance;\r | |
571 | EFI_MTFTP4_PROTOCOL *Mtftp4;\r | |
572 | EFI_STATUS Status;\r | |
573 | EFI_TPL OldTpl;\r | |
574 | \r | |
575 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
576 | return EFI_INVALID_PARAMETER;\r | |
577 | }\r | |
578 | \r | |
579 | //\r | |
580 | // Retrieve the private context data structures\r | |
581 | //\r | |
582 | Status = gBS->OpenProtocol (\r | |
583 | ChildHandle,\r | |
584 | &gEfiMtftp4ProtocolGuid,\r | |
585 | (VOID **) &Mtftp4,\r | |
586 | gMtftp4DriverBinding.DriverBindingHandle,\r | |
587 | ChildHandle,\r | |
588 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
589 | );\r | |
590 | \r | |
591 | if (EFI_ERROR (Status)) {\r | |
592 | return EFI_UNSUPPORTED;\r | |
593 | }\r | |
594 | \r | |
595 | Instance = MTFTP4_PROTOCOL_FROM_THIS (Mtftp4);\r | |
596 | MtftpSb = MTFTP4_SERVICE_FROM_THIS (This);\r | |
597 | \r | |
598 | if (Instance->Service != MtftpSb) {\r | |
599 | return EFI_INVALID_PARAMETER;\r | |
600 | }\r | |
601 | \r | |
75dce340 | 602 | if (Instance->InDestroy) {\r |
772db4bb | 603 | return EFI_SUCCESS;\r |
604 | }\r | |
605 | \r | |
75dce340 | 606 | Instance->InDestroy = TRUE;\r |
772db4bb | 607 | \r |
608 | //\r | |
609 | // Close the Udp4 protocol.\r | |
610 | //\r | |
611 | gBS->CloseProtocol (\r | |
612 | MtftpSb->ConnectUdp->UdpHandle,\r | |
613 | &gEfiUdp4ProtocolGuid,\r | |
614 | gMtftp4DriverBinding.DriverBindingHandle,\r | |
615 | ChildHandle\r | |
616 | );\r | |
617 | \r | |
618 | //\r | |
619 | // Uninstall the MTFTP4 protocol first to enable a top down destruction.\r | |
620 | //\r | |
621 | Status = gBS->UninstallProtocolInterface (\r | |
622 | ChildHandle,\r | |
623 | &gEfiMtftp4ProtocolGuid,\r | |
624 | Mtftp4\r | |
625 | );\r | |
626 | \r | |
627 | if (EFI_ERROR (Status)) {\r | |
75dce340 | 628 | Instance->InDestroy = FALSE;\r |
772db4bb | 629 | return Status;\r |
630 | }\r | |
631 | \r | |
e48e37fc | 632 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
772db4bb | 633 | \r |
634 | Mtftp4CleanOperation (Instance, EFI_DEVICE_ERROR);\r | |
b45b45b2 | 635 | UdpIoFreeIo (Instance->UnicastPort);\r |
772db4bb | 636 | \r |
e48e37fc | 637 | RemoveEntryList (&Instance->Link);\r |
772db4bb | 638 | MtftpSb->ChildrenNum--;\r |
639 | \r | |
e48e37fc | 640 | gBS->RestoreTPL (OldTpl);\r |
772db4bb | 641 | \r |
766c7483 | 642 | FreePool (Instance);\r |
772db4bb | 643 | return EFI_SUCCESS;\r |
644 | }\r |