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a3bcde70 HT |
1 | /** @file\r |
2 | Driver Binding functions and Service Binding functions\r | |
3 | implementation for Mtftp6 Driver.\r | |
4 | \r | |
75dce340 | 5 | Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>\r |
a3bcde70 HT |
6 | \r |
7 | This program and the accompanying materials\r | |
8 | are licensed and made available under the terms and conditions of the BSD License\r | |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php.\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include "Mtftp6Impl.h"\r | |
18 | \r | |
19 | \r | |
20 | EFI_DRIVER_BINDING_PROTOCOL gMtftp6DriverBinding = {\r | |
21 | Mtftp6DriverBindingSupported,\r | |
22 | Mtftp6DriverBindingStart,\r | |
23 | Mtftp6DriverBindingStop,\r | |
24 | 0xa,\r | |
25 | NULL,\r | |
26 | NULL\r | |
27 | };\r | |
28 | \r | |
29 | EFI_SERVICE_BINDING_PROTOCOL gMtftp6ServiceBindingTemplate = {\r | |
30 | Mtftp6ServiceBindingCreateChild,\r | |
31 | Mtftp6ServiceBindingDestroyChild\r | |
32 | };\r | |
33 | \r | |
34 | \r | |
35 | /**\r | |
75dce340 | 36 | Destroy the MTFTP6 service. The MTFTP6 service may be partly initialized,\r |
a3bcde70 HT |
37 | or partly destroyed. If a resource is destroyed, it is marked as such in\r |
38 | case the destroy failed and is called again later.\r | |
39 | \r | |
40 | @param[in] Service The MTFTP6 service to be destroyed.\r | |
41 | \r | |
42 | **/\r | |
43 | VOID\r | |
44 | Mtftp6DestroyService (\r | |
45 | IN MTFTP6_SERVICE *Service\r | |
46 | )\r | |
47 | {\r | |
48 | //\r | |
75dce340 | 49 | // Make sure all children instances have been already destroyed.\r |
a3bcde70 HT |
50 | //\r |
51 | ASSERT (Service->ChildrenNum == 0);\r | |
52 | \r | |
53 | if (Service->DummyUdpIo != NULL) {\r | |
54 | UdpIoFreeIo (Service->DummyUdpIo);\r | |
55 | }\r | |
56 | \r | |
57 | if (Service->Timer != NULL) {\r | |
58 | gBS->CloseEvent (Service->Timer);\r | |
59 | }\r | |
60 | \r | |
61 | FreePool (Service);\r | |
62 | }\r | |
63 | \r | |
64 | \r | |
65 | /**\r | |
66 | Create then initialize a MTFTP6 service binding instance.\r | |
67 | \r | |
68 | @param[in] Controller The controller to install the MTFTP6 service\r | |
69 | binding on.\r | |
70 | @param[in] Image The driver binding image of the MTFTP6 driver.\r | |
71 | @param[out] Service The variable to receive the created service\r | |
72 | binding instance.\r | |
73 | \r | |
74 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources to create the instance\r | |
75 | @retval EFI_DEVICE_ERROR Failed to create a NULL UDP port to keep connection with UDP.\r | |
76 | @retval EFI_SUCCESS The service instance is created for the controller.\r | |
77 | \r | |
78 | **/\r | |
79 | EFI_STATUS\r | |
80 | Mtftp6CreateService (\r | |
81 | IN EFI_HANDLE Controller,\r | |
82 | IN EFI_HANDLE Image,\r | |
83 | OUT MTFTP6_SERVICE **Service\r | |
84 | )\r | |
85 | {\r | |
86 | MTFTP6_SERVICE *Mtftp6Srv;\r | |
87 | EFI_STATUS Status;\r | |
88 | \r | |
89 | ASSERT (Service != NULL);\r | |
90 | \r | |
91 | *Service = NULL;\r | |
92 | Mtftp6Srv = AllocateZeroPool (sizeof (MTFTP6_SERVICE));\r | |
93 | \r | |
94 | if (Mtftp6Srv == NULL) {\r | |
95 | return EFI_OUT_OF_RESOURCES;\r | |
96 | }\r | |
97 | \r | |
98 | Mtftp6Srv->Signature = MTFTP6_SERVICE_SIGNATURE;\r | |
99 | Mtftp6Srv->Controller = Controller;\r | |
100 | Mtftp6Srv->Image = Image;\r | |
a3bcde70 HT |
101 | Mtftp6Srv->ChildrenNum = 0;\r |
102 | \r | |
103 | CopyMem (\r | |
104 | &Mtftp6Srv->ServiceBinding,\r | |
105 | &gMtftp6ServiceBindingTemplate,\r | |
106 | sizeof (EFI_SERVICE_BINDING_PROTOCOL)\r | |
107 | );\r | |
108 | \r | |
109 | InitializeListHead (&Mtftp6Srv->Children);\r | |
110 | \r | |
111 | //\r | |
112 | // Create a internal timer for all instances.\r | |
113 | //\r | |
114 | Status = gBS->CreateEvent (\r | |
115 | EVT_NOTIFY_SIGNAL | EVT_TIMER,\r | |
116 | TPL_CALLBACK,\r | |
117 | Mtftp6OnTimerTick,\r | |
118 | Mtftp6Srv,\r | |
119 | &Mtftp6Srv->Timer\r | |
120 | );\r | |
121 | \r | |
122 | if (EFI_ERROR (Status)) {\r | |
123 | FreePool (Mtftp6Srv);\r | |
124 | return Status;\r | |
125 | }\r | |
126 | \r | |
127 | //\r | |
128 | // Create a dummy Udp6Io to build parent-child relationship between Udp6 driver\r | |
129 | // and Mtftp6 driver.\r | |
130 | //\r | |
131 | Mtftp6Srv->DummyUdpIo = UdpIoCreateIo (\r | |
132 | Controller,\r | |
133 | Image,\r | |
134 | Mtftp6ConfigDummyUdpIo,\r | |
135 | UDP_IO_UDP6_VERSION,\r | |
136 | NULL\r | |
137 | );\r | |
138 | \r | |
139 | if (Mtftp6Srv->DummyUdpIo == NULL) {\r | |
140 | gBS->CloseEvent (Mtftp6Srv->Timer);\r | |
141 | FreePool (Mtftp6Srv);\r | |
142 | return EFI_DEVICE_ERROR;\r | |
143 | }\r | |
144 | \r | |
145 | *Service = Mtftp6Srv;\r | |
146 | return EFI_SUCCESS;\r | |
147 | }\r | |
148 | \r | |
149 | \r | |
150 | /**\r | |
151 | Destroy the MTFTP6 instance and recycle the resources.\r | |
152 | \r | |
153 | @param[in] Instance The pointer to the MTFTP6 instance.\r | |
154 | \r | |
155 | **/\r | |
156 | VOID\r | |
157 | Mtftp6DestroyInstance (\r | |
158 | IN MTFTP6_INSTANCE *Instance\r | |
159 | )\r | |
160 | {\r | |
161 | LIST_ENTRY *Entry;\r | |
162 | LIST_ENTRY *Next;\r | |
163 | MTFTP6_BLOCK_RANGE *Block;\r | |
164 | \r | |
165 | if (Instance->Config != NULL) {\r | |
166 | FreePool (Instance->Config);\r | |
167 | }\r | |
168 | \r | |
169 | if (Instance->Token != NULL && Instance->Token->Event != NULL) {\r | |
170 | gBS->SignalEvent (Instance->Token->Event);\r | |
171 | }\r | |
172 | \r | |
173 | if (Instance->LastPacket != NULL) {\r | |
174 | NetbufFree (Instance->LastPacket);\r | |
175 | }\r | |
176 | \r | |
177 | if (Instance->UdpIo!= NULL) {\r | |
178 | UdpIoFreeIo (Instance->UdpIo);\r | |
179 | }\r | |
180 | \r | |
181 | if (Instance->McastUdpIo != NULL) {\r | |
182 | UdpIoFreeIo (Instance->McastUdpIo);\r | |
183 | }\r | |
184 | \r | |
185 | NET_LIST_FOR_EACH_SAFE (Entry, Next, &Instance->BlkList) {\r | |
186 | Block = NET_LIST_USER_STRUCT (Entry, MTFTP6_BLOCK_RANGE, Link);\r | |
187 | RemoveEntryList (Entry);\r | |
188 | FreePool (Block);\r | |
189 | }\r | |
190 | \r | |
191 | FreePool (Instance);\r | |
192 | }\r | |
193 | \r | |
194 | \r | |
195 | /**\r | |
196 | Create the MTFTP6 instance and initialize it.\r | |
197 | \r | |
198 | @param[in] Service The pointer to the MTFTP6 service.\r | |
199 | @param[out] Instance The pointer to the MTFTP6 instance.\r | |
200 | \r | |
201 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
202 | @retval EFI_SUCCESS The MTFTP6 instance is created.\r | |
203 | \r | |
204 | **/\r | |
205 | EFI_STATUS\r | |
206 | Mtftp6CreateInstance (\r | |
207 | IN MTFTP6_SERVICE *Service,\r | |
208 | OUT MTFTP6_INSTANCE **Instance\r | |
209 | )\r | |
210 | {\r | |
211 | MTFTP6_INSTANCE *Mtftp6Ins;\r | |
212 | \r | |
213 | *Instance = NULL;\r | |
214 | Mtftp6Ins = AllocateZeroPool (sizeof (MTFTP6_INSTANCE));\r | |
215 | \r | |
216 | if (Mtftp6Ins == NULL) {\r | |
217 | return EFI_OUT_OF_RESOURCES;\r | |
218 | }\r | |
219 | \r | |
220 | Mtftp6Ins->Signature = MTFTP6_INSTANCE_SIGNATURE;\r | |
75dce340 | 221 | Mtftp6Ins->InDestroy = FALSE;\r |
a3bcde70 HT |
222 | Mtftp6Ins->Service = Service;\r |
223 | \r | |
224 | CopyMem (\r | |
225 | &Mtftp6Ins->Mtftp6,\r | |
226 | &gMtftp6ProtocolTemplate,\r | |
227 | sizeof (EFI_MTFTP6_PROTOCOL)\r | |
228 | );\r | |
229 | \r | |
230 | InitializeListHead (&Mtftp6Ins->Link);\r | |
231 | InitializeListHead (&Mtftp6Ins->BlkList);\r | |
232 | \r | |
233 | *Instance = Mtftp6Ins;\r | |
234 | \r | |
235 | return EFI_SUCCESS;\r | |
236 | }\r | |
237 | \r | |
238 | \r | |
216f7970 | 239 | /**\r |
240 | Callback function which provided by user to remove one node in NetDestroyLinkList process.\r | |
241 | \r | |
242 | @param[in] Entry The entry to be removed.\r | |
243 | @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.\r | |
244 | \r | |
245 | @retval EFI_SUCCESS The entry has been removed successfully.\r | |
246 | @retval Others Fail to remove the entry.\r | |
247 | \r | |
248 | **/\r | |
249 | EFI_STATUS\r | |
1f7eb561 | 250 | EFIAPI\r |
216f7970 | 251 | Mtftp6DestroyChildEntryInHandleBuffer (\r |
252 | IN LIST_ENTRY *Entry,\r | |
253 | IN VOID *Context\r | |
1f7eb561 | 254 | )\r |
216f7970 | 255 | {\r |
256 | MTFTP6_INSTANCE *Instance;\r | |
257 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r | |
258 | UINTN NumberOfChildren;\r | |
259 | EFI_HANDLE *ChildHandleBuffer;\r | |
260 | \r | |
261 | if (Entry == NULL || Context == NULL) {\r | |
262 | return EFI_INVALID_PARAMETER;\r | |
263 | }\r | |
264 | \r | |
265 | Instance = NET_LIST_USER_STRUCT_S (Entry, MTFTP6_INSTANCE, Link, MTFTP6_INSTANCE_SIGNATURE);\r | |
266 | ServiceBinding = ((MTFTP6_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ServiceBinding;\r | |
267 | NumberOfChildren = ((MTFTP6_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->NumberOfChildren;\r | |
268 | ChildHandleBuffer = ((MTFTP6_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ChildHandleBuffer;\r | |
269 | \r | |
270 | if (!NetIsInHandleBuffer (Instance->Handle, NumberOfChildren, ChildHandleBuffer)) {\r | |
271 | return EFI_SUCCESS;\r | |
272 | }\r | |
273 | \r | |
274 | return ServiceBinding->DestroyChild (ServiceBinding, Instance->Handle);\r | |
275 | }\r | |
276 | \r | |
277 | \r | |
a3bcde70 HT |
278 | /**\r |
279 | This is the declaration of an EFI image entry point. This entry point is\r | |
280 | the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers, including\r | |
281 | both device drivers and bus drivers.\r | |
282 | \r | |
283 | Entry point of the MTFTP6 driver to install various protocols.\r | |
284 | \r | |
285 | @param[in] ImageHandle The firmware allocated handle for the UEFI image.\r | |
286 | @param[in] SystemTable The pointer to the EFI System Table.\r | |
287 | \r | |
288 | @retval EFI_SUCCESS The operation completed successfully.\r | |
289 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
290 | \r | |
291 | **/\r | |
292 | EFI_STATUS\r | |
293 | EFIAPI\r | |
294 | Mtftp6DriverEntryPoint (\r | |
295 | IN EFI_HANDLE ImageHandle,\r | |
296 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
297 | )\r | |
298 | {\r | |
299 | return EfiLibInstallDriverBindingComponentName2 (\r | |
300 | ImageHandle,\r | |
301 | SystemTable,\r | |
302 | &gMtftp6DriverBinding,\r | |
303 | ImageHandle,\r | |
304 | &gMtftp6ComponentName,\r | |
305 | &gMtftp6ComponentName2\r | |
306 | );\r | |
307 | }\r | |
308 | \r | |
309 | \r | |
310 | /**\r | |
76389e18 | 311 | Test to see if this driver supports Controller. This service\r |
a3bcde70 HT |
312 | is called by the EFI boot service ConnectController(). In\r |
313 | order to make drivers as small as possible, there are calling\r | |
314 | restrictions for this service. ConnectController() must\r | |
315 | follow these calling restrictions. If any other agent wishes to call\r | |
316 | Supported(), it must also follow these calling restrictions.\r | |
317 | \r | |
318 | @param[in] This Protocol instance pointer.\r | |
76389e18 | 319 | @param[in] Controller Handle of device to test\r |
a3bcde70 HT |
320 | @param[in] RemainingDevicePath Optional parameter use to pick a specific child.\r |
321 | device to start.\r | |
322 | \r | |
323 | @retval EFI_SUCCESS This driver supports this device.\r | |
324 | @retval Others This driver does not support this device.\r | |
325 | \r | |
326 | **/\r | |
327 | EFI_STATUS\r | |
328 | EFIAPI\r | |
329 | Mtftp6DriverBindingSupported (\r | |
330 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
331 | IN EFI_HANDLE Controller,\r | |
332 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
333 | )\r | |
334 | {\r | |
335 | return gBS->OpenProtocol (\r | |
336 | Controller,\r | |
337 | &gEfiUdp6ServiceBindingProtocolGuid,\r | |
338 | NULL,\r | |
339 | This->DriverBindingHandle,\r | |
340 | Controller,\r | |
341 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
342 | );\r | |
343 | }\r | |
344 | \r | |
345 | \r | |
346 | /**\r | |
76389e18 | 347 | Start this driver on Controller. This service is called by the\r |
a3bcde70 HT |
348 | EFI boot service ConnectController(). In order to make\r |
349 | drivers as small as possible, there are calling restrictions for\r | |
350 | this service. ConnectController() must follow these\r | |
351 | calling restrictions. If any other agent wishes to call Start() it\r | |
352 | must also follow these calling restrictions.\r | |
353 | \r | |
354 | @param[in] This Protocol instance pointer.\r | |
76389e18 | 355 | @param[in] Controller Handle of device to bind driver to.\r |
a3bcde70 HT |
356 | @param[in] RemainingDevicePath Optional parameter use to pick a specific child\r |
357 | device to start.\r | |
358 | \r | |
76389e18 | 359 | @retval EFI_SUCCESS This driver is added to Controller.\r |
360 | @retval EFI_ALREADY_STARTED This driver is already running on Controller.\r | |
a3bcde70 HT |
361 | @retval Others This driver does not support this device.\r |
362 | \r | |
363 | **/\r | |
364 | EFI_STATUS\r | |
365 | EFIAPI\r | |
366 | Mtftp6DriverBindingStart (\r | |
367 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
368 | IN EFI_HANDLE Controller,\r | |
369 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
370 | )\r | |
371 | {\r | |
372 | MTFTP6_SERVICE *Service;\r | |
373 | EFI_STATUS Status;\r | |
374 | \r | |
375 | //\r | |
376 | // Directly return if driver is already running on this Nic handle.\r | |
377 | //\r | |
378 | Status = gBS->OpenProtocol (\r | |
379 | Controller,\r | |
380 | &gEfiMtftp6ServiceBindingProtocolGuid,\r | |
381 | NULL,\r | |
382 | This->DriverBindingHandle,\r | |
383 | Controller,\r | |
384 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
385 | );\r | |
386 | \r | |
387 | if (!EFI_ERROR (Status)) {\r | |
388 | return EFI_ALREADY_STARTED;\r | |
389 | }\r | |
390 | \r | |
391 | //\r | |
392 | // Create Mtftp6 service for this Nic handle\r | |
393 | //\r | |
394 | Status = Mtftp6CreateService (\r | |
395 | Controller,\r | |
396 | This->DriverBindingHandle,\r | |
397 | &Service\r | |
398 | );\r | |
399 | \r | |
400 | if (EFI_ERROR (Status)) {\r | |
401 | return Status;\r | |
402 | }\r | |
403 | \r | |
404 | ASSERT (Service != NULL);\r | |
405 | \r | |
406 | //\r | |
407 | // Start the internal timer to track the packet retransmission.\r | |
408 | //\r | |
409 | Status = gBS->SetTimer (\r | |
410 | Service->Timer,\r | |
411 | TimerPeriodic,\r | |
412 | TICKS_PER_SECOND\r | |
413 | );\r | |
414 | \r | |
415 | if (EFI_ERROR (Status)) {\r | |
416 | goto ON_ERROR;\r | |
417 | }\r | |
418 | \r | |
419 | //\r | |
420 | // Install the Mtftp6 service on the Nic handle.\r | |
421 | //\r | |
422 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
423 | &Controller,\r | |
424 | &gEfiMtftp6ServiceBindingProtocolGuid,\r | |
425 | &Service->ServiceBinding,\r | |
426 | NULL\r | |
427 | );\r | |
428 | \r | |
429 | if (EFI_ERROR (Status)) {\r | |
430 | goto ON_ERROR;\r | |
431 | }\r | |
432 | \r | |
433 | return EFI_SUCCESS;\r | |
434 | \r | |
435 | ON_ERROR:\r | |
436 | \r | |
437 | Mtftp6DestroyService (Service);\r | |
438 | return Status;\r | |
439 | }\r | |
440 | \r | |
441 | \r | |
442 | /**\r | |
76389e18 | 443 | Stop this driver on Controller. This service is called by the\r |
a3bcde70 | 444 | EFI boot service DisconnectController(). In order to\r |
76389e18 | 445 | make drivers as small as possible, there are calling\r |
a3bcde70 HT |
446 | restrictions for this service. DisconnectController()\r |
447 | must follow these calling restrictions. If any other agent wishes\r | |
76389e18 | 448 | to call Stop(), it must also follow these calling restrictions.\r |
a3bcde70 HT |
449 | \r |
450 | @param[in] This Protocol instance pointer.\r | |
76389e18 | 451 | @param[in] Controller Handle of device to stop driver on\r |
a3bcde70 HT |
452 | @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r |
453 | children is zero, stop the entire bus driver.\r | |
454 | @param[in] ChildHandleBuffer List of Child Handles to Stop.\r | |
455 | \r | |
76389e18 | 456 | @retval EFI_SUCCESS This driver is removed Controller.\r |
a3bcde70 HT |
457 | @retval EFI_DEVICE_ERROR An unexpected error.\r |
458 | @retval Others This driver was not removed from this device.\r | |
459 | \r | |
460 | **/\r | |
461 | EFI_STATUS\r | |
462 | EFIAPI\r | |
463 | Mtftp6DriverBindingStop (\r | |
464 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
465 | IN EFI_HANDLE Controller,\r | |
466 | IN UINTN NumberOfChildren,\r | |
467 | IN EFI_HANDLE *ChildHandleBuffer\r | |
468 | )\r | |
469 | {\r | |
216f7970 | 470 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r |
471 | MTFTP6_SERVICE *Service;\r | |
472 | EFI_HANDLE NicHandle;\r | |
473 | EFI_STATUS Status;\r | |
474 | LIST_ENTRY *List;\r | |
475 | MTFTP6_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;\r | |
476 | \r | |
a3bcde70 HT |
477 | //\r |
478 | // Locate the Nic handle to retrieve the Mtftp6 private data.\r | |
479 | //\r | |
480 | NicHandle = NetLibGetNicHandle (Controller, &gEfiUdp6ProtocolGuid);\r | |
481 | \r | |
482 | if (NicHandle == NULL) {\r | |
216f7970 | 483 | return EFI_SUCCESS;\r |
a3bcde70 HT |
484 | }\r |
485 | \r | |
486 | Status = gBS->OpenProtocol (\r | |
487 | NicHandle,\r | |
488 | &gEfiMtftp6ServiceBindingProtocolGuid,\r | |
489 | (VOID **) &ServiceBinding,\r | |
490 | This->DriverBindingHandle,\r | |
491 | NicHandle,\r | |
492 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
493 | );\r | |
494 | \r | |
495 | if (EFI_ERROR (Status)) {\r | |
496 | return EFI_DEVICE_ERROR;\r | |
497 | }\r | |
498 | \r | |
499 | Service = MTFTP6_SERVICE_FROM_THIS (ServiceBinding);\r | |
500 | \r | |
216f7970 | 501 | if (!IsListEmpty (&Service->Children)) {\r |
502 | //\r | |
503 | // Destroy the Mtftp6 child instance in ChildHandleBuffer.\r | |
504 | //\r | |
505 | List = &Service->Children;\r | |
506 | Context.ServiceBinding = ServiceBinding;\r | |
507 | Context.NumberOfChildren = NumberOfChildren;\r | |
508 | Context.ChildHandleBuffer = ChildHandleBuffer;\r | |
509 | Status = NetDestroyLinkList (\r | |
510 | List,\r | |
511 | Mtftp6DestroyChildEntryInHandleBuffer,\r | |
512 | &Context,\r | |
513 | NULL\r | |
514 | );\r | |
a3bcde70 HT |
515 | }\r |
516 | \r | |
216f7970 | 517 | if (NumberOfChildren == 0 && IsListEmpty (&Service->Children)) {\r |
a3bcde70 | 518 | //\r |
75dce340 | 519 | // Destroy the Mtftp6 service if there is no Mtftp6 child instance left.\r |
a3bcde70 | 520 | //\r |
a3bcde70 HT |
521 | gBS->UninstallProtocolInterface (\r |
522 | NicHandle,\r | |
523 | &gEfiMtftp6ServiceBindingProtocolGuid,\r | |
524 | ServiceBinding\r | |
525 | );\r | |
526 | \r | |
527 | Mtftp6DestroyService (Service);\r | |
216f7970 | 528 | Status = EFI_SUCCESS;\r |
a3bcde70 HT |
529 | }\r |
530 | \r | |
a3bcde70 HT |
531 | return Status;\r |
532 | }\r | |
533 | \r | |
534 | \r | |
535 | /**\r | |
536 | Creates a child handle and installs a protocol.\r | |
537 | \r | |
538 | The CreateChild() function installs a protocol on ChildHandle.\r | |
539 | If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.\r | |
540 | If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.\r | |
541 | \r | |
542 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r | |
543 | @param[in, out] ChildHandle Pointer to the handle of the child to create. If it is NULL,\r | |
544 | then a new handle is created. If it is a pointer to an existing\r | |
545 | UEFI handle, then the protocol is added to the existing UEFI handle.\r | |
546 | \r | |
547 | @retval EFI_SUCCES The protocol was added to ChildHandle.\r | |
548 | @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r | |
549 | @retval Others The child handle was not created.\r | |
550 | \r | |
551 | **/\r | |
552 | EFI_STATUS\r | |
553 | EFIAPI\r | |
554 | Mtftp6ServiceBindingCreateChild (\r | |
555 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
556 | IN OUT EFI_HANDLE *ChildHandle\r | |
557 | )\r | |
558 | {\r | |
559 | MTFTP6_SERVICE *Service;\r | |
560 | MTFTP6_INSTANCE *Instance;\r | |
561 | EFI_STATUS Status;\r | |
562 | EFI_TPL OldTpl;\r | |
563 | VOID *Udp6;\r | |
564 | \r | |
565 | if (This == NULL || ChildHandle == NULL) {\r | |
566 | return EFI_INVALID_PARAMETER;\r | |
567 | }\r | |
568 | \r | |
569 | Service = MTFTP6_SERVICE_FROM_THIS (This);\r | |
570 | \r | |
571 | Status = Mtftp6CreateInstance (Service, &Instance);\r | |
572 | \r | |
573 | if (EFI_ERROR (Status)) {\r | |
574 | return Status;\r | |
575 | }\r | |
576 | \r | |
577 | ASSERT (Instance != NULL);\r | |
578 | \r | |
579 | //\r | |
580 | // Install the Mtftp6 protocol on the new child handle.\r | |
581 | //\r | |
582 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
583 | ChildHandle,\r | |
584 | &gEfiMtftp6ProtocolGuid,\r | |
585 | &Instance->Mtftp6,\r | |
586 | NULL\r | |
587 | );\r | |
588 | \r | |
589 | if (EFI_ERROR (Status)) {\r | |
590 | goto ON_ERROR;\r | |
591 | }\r | |
592 | \r | |
593 | Instance->Handle = *ChildHandle;\r | |
594 | \r | |
595 | //\r | |
596 | // Open the Udp6 protocol by child.\r | |
597 | //\r | |
598 | Status = gBS->OpenProtocol (\r | |
599 | Service->DummyUdpIo->UdpHandle,\r | |
600 | &gEfiUdp6ProtocolGuid,\r | |
601 | (VOID **) &Udp6,\r | |
602 | gMtftp6DriverBinding.DriverBindingHandle,\r | |
603 | Instance->Handle,\r | |
604 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
605 | );\r | |
606 | \r | |
607 | if (EFI_ERROR (Status)) {\r | |
608 | gBS->UninstallMultipleProtocolInterfaces (\r | |
609 | Instance->Handle,\r | |
610 | &gEfiMtftp6ProtocolGuid,\r | |
611 | &Instance->Mtftp6,\r | |
612 | NULL\r | |
613 | );\r | |
614 | \r | |
615 | goto ON_ERROR;\r | |
616 | }\r | |
617 | \r | |
618 | //\r | |
619 | // Add the new Mtftp6 instance into the children list of Mtftp6 service.\r | |
620 | //\r | |
621 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
622 | \r | |
623 | InsertTailList (&Service->Children, &Instance->Link);\r | |
624 | Service->ChildrenNum++;\r | |
625 | \r | |
626 | gBS->RestoreTPL (OldTpl);\r | |
627 | return EFI_SUCCESS;\r | |
628 | \r | |
629 | ON_ERROR:\r | |
630 | \r | |
631 | Mtftp6DestroyInstance (Instance);\r | |
632 | return Status;\r | |
633 | }\r | |
634 | \r | |
635 | \r | |
636 | /**\r | |
637 | Destroys a child handle with a protocol installed on it.\r | |
638 | \r | |
639 | The DestroyChild() function does the opposite of CreateChild(). It removes a protocol\r | |
640 | that was installed by CreateChild() from ChildHandle. If the removed protocol is the\r | |
641 | last protocol on ChildHandle, then ChildHandle is destroyed.\r | |
642 | \r | |
643 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r | |
644 | @param[in] ChildHandle Handle of the child to destroy.\r | |
645 | \r | |
646 | @retval EFI_SUCCES The protocol was removed from ChildHandle.\r | |
647 | @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.\r | |
15ee13fc | 648 | @retval EFI_INVALID_PARAMETER Child handle is NULL.\r |
a3bcde70 HT |
649 | @retval Others The child handle was not destroyed\r |
650 | \r | |
651 | **/\r | |
652 | EFI_STATUS\r | |
653 | EFIAPI\r | |
654 | Mtftp6ServiceBindingDestroyChild (\r | |
655 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
656 | IN EFI_HANDLE ChildHandle\r | |
657 | )\r | |
658 | {\r | |
659 | MTFTP6_SERVICE *Service;\r | |
660 | MTFTP6_INSTANCE *Instance;\r | |
661 | EFI_MTFTP6_PROTOCOL *Mtftp6;\r | |
662 | EFI_STATUS Status;\r | |
663 | EFI_TPL OldTpl;\r | |
664 | \r | |
665 | if (This == NULL || ChildHandle == NULL) {\r | |
666 | return EFI_INVALID_PARAMETER;\r | |
667 | }\r | |
668 | \r | |
669 | //\r | |
670 | // Locate the Nic handle to retrieve the Mtftp6 private data.\r | |
671 | //\r | |
672 | Status = gBS->OpenProtocol (\r | |
673 | ChildHandle,\r | |
674 | &gEfiMtftp6ProtocolGuid,\r | |
675 | (VOID **) &Mtftp6,\r | |
676 | gMtftp6DriverBinding.DriverBindingHandle,\r | |
677 | ChildHandle,\r | |
678 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
679 | );\r | |
680 | \r | |
681 | if (EFI_ERROR (Status)) {\r | |
682 | return EFI_UNSUPPORTED;\r | |
683 | }\r | |
684 | \r | |
685 | Instance = MTFTP6_INSTANCE_FROM_THIS (Mtftp6);\r | |
686 | Service = MTFTP6_SERVICE_FROM_THIS (This);\r | |
687 | \r | |
688 | if (Instance->Service != Service) {\r | |
689 | return EFI_INVALID_PARAMETER;\r | |
690 | }\r | |
691 | \r | |
692 | //\r | |
75dce340 | 693 | // Check whether the instance already in Destroy state.\r |
a3bcde70 | 694 | //\r |
75dce340 | 695 | if (Instance->InDestroy) {\r |
a3bcde70 HT |
696 | return EFI_SUCCESS;\r |
697 | }\r | |
698 | \r | |
699 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
700 | \r | |
75dce340 | 701 | Instance->InDestroy = TRUE;\r |
a3bcde70 HT |
702 | \r |
703 | gBS->CloseProtocol (\r | |
704 | Service->DummyUdpIo->UdpHandle,\r | |
705 | &gEfiUdp6ProtocolGuid,\r | |
706 | gMtftp6DriverBinding.DriverBindingHandle,\r | |
707 | ChildHandle\r | |
708 | );\r | |
709 | \r | |
216f7970 | 710 | if (Instance->UdpIo != NULL) {\r |
711 | gBS->CloseProtocol (\r | |
712 | Instance->UdpIo->UdpHandle,\r | |
713 | &gEfiUdp6ProtocolGuid,\r | |
714 | gMtftp6DriverBinding.DriverBindingHandle,\r | |
715 | Instance->Handle\r | |
716 | );\r | |
717 | }\r | |
718 | \r | |
719 | if (Instance->McastUdpIo != NULL) {\r | |
720 | gBS->CloseProtocol (\r | |
721 | Instance->McastUdpIo->UdpHandle,\r | |
722 | &gEfiUdp6ProtocolGuid,\r | |
723 | gMtftp6DriverBinding.DriverBindingHandle,\r | |
724 | Instance->Handle\r | |
725 | );\r | |
726 | }\r | |
727 | \r | |
a3bcde70 HT |
728 | //\r |
729 | // Uninstall the MTFTP6 protocol first to enable a top down destruction.\r | |
730 | //\r | |
216f7970 | 731 | gBS->RestoreTPL (OldTpl);\r |
a3bcde70 HT |
732 | Status = gBS->UninstallProtocolInterface (\r |
733 | ChildHandle,\r | |
734 | &gEfiMtftp6ProtocolGuid,\r | |
735 | Mtftp6\r | |
736 | );\r | |
216f7970 | 737 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r |
a3bcde70 | 738 | if (EFI_ERROR (Status)) {\r |
75dce340 | 739 | Instance->InDestroy = FALSE;\r |
a3bcde70 HT |
740 | gBS->RestoreTPL (OldTpl);\r |
741 | return Status;\r | |
742 | }\r | |
743 | \r | |
744 | //\r | |
745 | // Remove the Mtftp6 instance from the children list of Mtftp6 service.\r | |
746 | //\r | |
747 | RemoveEntryList (&Instance->Link);\r | |
748 | Service->ChildrenNum --;\r | |
749 | \r | |
a3bcde70 HT |
750 | gBS->RestoreTPL (OldTpl);\r |
751 | \r | |
216f7970 | 752 | Mtftp6DestroyInstance (Instance);\r |
753 | \r | |
a3bcde70 HT |
754 | return EFI_SUCCESS;\r |
755 | }\r |