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99c048ef | 1 | /** @file\r |
2 | The driver binding and service binding protocol for DnsDxe driver.\r | |
3 | \r | |
62a623de | 4 | Copyright (c) 2015 - 2019, Intel Corporation. All rights reserved.<BR>\r |
ecf98fbc | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
99c048ef | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "DnsImpl.h"\r | |
10 | \r | |
d1050b9d | 11 | EFI_DRIVER_BINDING_PROTOCOL gDns4DriverBinding = {\r |
99c048ef | 12 | Dns4DriverBindingSupported,\r |
13 | Dns4DriverBindingStart,\r | |
14 | Dns4DriverBindingStop,\r | |
15 | DNS_VERSION,\r | |
16 | NULL,\r | |
17 | NULL\r | |
18 | };\r | |
19 | \r | |
d1050b9d | 20 | EFI_DRIVER_BINDING_PROTOCOL gDns6DriverBinding = {\r |
99c048ef | 21 | Dns6DriverBindingSupported,\r |
22 | Dns6DriverBindingStart,\r | |
23 | Dns6DriverBindingStop,\r | |
24 | DNS_VERSION,\r | |
25 | NULL,\r | |
26 | NULL\r | |
27 | };\r | |
28 | \r | |
d1050b9d | 29 | EFI_SERVICE_BINDING_PROTOCOL mDns4ServiceBinding = {\r |
99c048ef | 30 | Dns4ServiceBindingCreateChild,\r |
31 | Dns4ServiceBindingDestroyChild\r | |
32 | };\r | |
33 | \r | |
d1050b9d | 34 | EFI_SERVICE_BINDING_PROTOCOL mDns6ServiceBinding = {\r |
99c048ef | 35 | Dns6ServiceBindingCreateChild,\r |
36 | Dns6ServiceBindingDestroyChild\r | |
37 | };\r | |
38 | \r | |
d1050b9d | 39 | DNS_DRIVER_DATA *mDriverData = NULL;\r |
99c048ef | 40 | \r |
41 | /**\r | |
42 | Destroy the DNS instance and recycle the resources.\r | |
43 | \r | |
44 | @param[in] Instance The pointer to the DNS instance.\r | |
45 | \r | |
46 | **/\r | |
47 | VOID\r | |
48 | DnsDestroyInstance (\r | |
d1050b9d | 49 | IN DNS_INSTANCE *Instance\r |
99c048ef | 50 | )\r |
51 | {\r | |
52 | ZeroMem (&Instance->Dns4CfgData, sizeof (EFI_DNS4_CONFIG_DATA));\r | |
f75a7f56 | 53 | \r |
99c048ef | 54 | ZeroMem (&Instance->Dns6CfgData, sizeof (EFI_DNS6_CONFIG_DATA));\r |
f75a7f56 | 55 | \r |
99c048ef | 56 | if (!NetMapIsEmpty (&Instance->Dns4TxTokens)) {\r |
57 | Dns4InstanceCancelToken (Instance, NULL);\r | |
58 | }\r | |
59 | \r | |
60 | if (!NetMapIsEmpty (&Instance->Dns6TxTokens)) {\r | |
61 | Dns6InstanceCancelToken (Instance, NULL);\r | |
62 | }\r | |
f75a7f56 | 63 | \r |
d1050b9d | 64 | if (Instance->UdpIo != NULL) {\r |
99c048ef | 65 | UdpIoFreeIo (Instance->UdpIo);\r |
66 | }\r | |
f75a7f56 | 67 | \r |
99c048ef | 68 | FreePool (Instance);\r |
69 | }\r | |
70 | \r | |
71 | /**\r | |
72 | Create the DNS instance and initialize it.\r | |
73 | \r | |
74 | @param[in] Service The pointer to the DNS service.\r | |
75 | @param[out] Instance The pointer to the DNS instance.\r | |
76 | \r | |
77 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r | |
78 | @retval EFI_SUCCESS The DNS instance is created.\r | |
79 | \r | |
80 | **/\r | |
81 | EFI_STATUS\r | |
82 | DnsCreateInstance (\r | |
d1050b9d MK |
83 | IN DNS_SERVICE *Service,\r |
84 | OUT DNS_INSTANCE **Instance\r | |
99c048ef | 85 | )\r |
86 | {\r | |
d1050b9d | 87 | DNS_INSTANCE *DnsIns;\r |
99c048ef | 88 | \r |
89 | *Instance = NULL;\r | |
f75a7f56 | 90 | \r |
99c048ef | 91 | DnsIns = AllocateZeroPool (sizeof (DNS_INSTANCE));\r |
92 | if (DnsIns == NULL) {\r | |
93 | return EFI_OUT_OF_RESOURCES;\r | |
94 | }\r | |
95 | \r | |
96 | DnsIns->Signature = DNS_INSTANCE_SIGNATURE;\r | |
97 | InitializeListHead (&DnsIns->Link);\r | |
98 | DnsIns->State = DNS_STATE_UNCONFIGED;\r | |
99 | DnsIns->InDestroy = FALSE;\r | |
100 | DnsIns->Service = Service;\r | |
f75a7f56 | 101 | \r |
99c048ef | 102 | if (Service->IpVersion == IP_VERSION_4) {\r |
103 | CopyMem (&DnsIns->Dns4, &mDns4Protocol, sizeof (DnsIns->Dns4));\r | |
104 | NetMapInit (&DnsIns->Dns4TxTokens);\r | |
105 | } else {\r | |
106 | CopyMem (&DnsIns->Dns6, &mDns6Protocol, sizeof (DnsIns->Dns6));\r | |
107 | NetMapInit (&DnsIns->Dns6TxTokens);\r | |
108 | }\r | |
109 | \r | |
110 | DnsIns->UdpIo = UdpIoCreateIo (\r | |
111 | Service->ControllerHandle, /// NicHandle\r | |
112 | Service->ImageHandle,\r | |
113 | DnsConfigNullUdp,\r | |
114 | Service->IpVersion,\r | |
115 | DnsIns\r | |
116 | );\r | |
117 | if (DnsIns->UdpIo == NULL) {\r | |
118 | FreePool (DnsIns);\r | |
119 | return EFI_OUT_OF_RESOURCES;\r | |
120 | }\r | |
f75a7f56 | 121 | \r |
99c048ef | 122 | *Instance = DnsIns;\r |
123 | \r | |
124 | return EFI_SUCCESS;\r | |
125 | }\r | |
126 | \r | |
127 | /**\r | |
128 | Callback function which provided by user to remove one node in NetDestroyLinkList process.\r | |
f75a7f56 | 129 | \r |
99c048ef | 130 | @param[in] Entry The entry to be removed.\r |
131 | @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.\r | |
132 | \r | |
133 | @retval EFI_SUCCESS The entry has been removed successfully.\r | |
134 | @retval Others Fail to remove the entry.\r | |
135 | \r | |
136 | **/\r | |
137 | EFI_STATUS\r | |
138 | EFIAPI\r | |
139 | DnsDestroyChildEntryInHandleBuffer (\r | |
d1050b9d MK |
140 | IN LIST_ENTRY *Entry,\r |
141 | IN VOID *Context\r | |
99c048ef | 142 | )\r |
143 | {\r | |
144 | DNS_INSTANCE *Instance;\r | |
145 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r | |
146 | UINTN NumberOfChildren;\r | |
147 | EFI_HANDLE *ChildHandleBuffer;\r | |
148 | \r | |
d1050b9d | 149 | if ((Entry == NULL) || (Context == NULL)) {\r |
99c048ef | 150 | return EFI_INVALID_PARAMETER;\r |
151 | }\r | |
152 | \r | |
d1050b9d MK |
153 | Instance = NET_LIST_USER_STRUCT_S (Entry, DNS_INSTANCE, Link, DNS_INSTANCE_SIGNATURE);\r |
154 | ServiceBinding = ((DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *)Context)->ServiceBinding;\r | |
155 | NumberOfChildren = ((DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *)Context)->NumberOfChildren;\r | |
156 | ChildHandleBuffer = ((DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *)Context)->ChildHandleBuffer;\r | |
99c048ef | 157 | \r |
158 | if (!NetIsInHandleBuffer (Instance->ChildHandle, NumberOfChildren, ChildHandleBuffer)) {\r | |
159 | return EFI_SUCCESS;\r | |
160 | }\r | |
161 | \r | |
162 | return ServiceBinding->DestroyChild (ServiceBinding, Instance->ChildHandle);\r | |
163 | }\r | |
164 | \r | |
165 | /**\r | |
166 | Config a NULL UDP that is used to keep the connection between UDP and DNS.\r | |
167 | \r | |
168 | Just leave the Udp child unconfigured. When UDP is unloaded,\r | |
169 | DNS will be informed with DriverBinding Stop.\r | |
170 | \r | |
171 | @param UdpIo The UDP_IO to configure\r | |
172 | @param Context The opaque parameter to the callback\r | |
173 | \r | |
174 | @retval EFI_SUCCESS It always return EFI_SUCCESS directly.\r | |
175 | \r | |
176 | **/\r | |
177 | EFI_STATUS\r | |
178 | EFIAPI\r | |
179 | DnsConfigNullUdp (\r | |
d1050b9d MK |
180 | IN UDP_IO *UdpIo,\r |
181 | IN VOID *Context\r | |
99c048ef | 182 | )\r |
183 | {\r | |
184 | return EFI_SUCCESS;\r | |
185 | }\r | |
186 | \r | |
187 | /**\r | |
188 | Release all the resource used the DNS service binding instance.\r | |
189 | \r | |
190 | @param DnsSb The Dns service binding instance.\r | |
191 | \r | |
192 | **/\r | |
193 | VOID\r | |
194 | DnsDestroyService (\r | |
d1050b9d | 195 | IN DNS_SERVICE *DnsSb\r |
99c048ef | 196 | )\r |
197 | {\r | |
198 | UdpIoFreeIo (DnsSb->ConnectUdp);\r | |
f75a7f56 | 199 | \r |
4ad1bd63 | 200 | if (DnsSb->TimerToGetMap != NULL) {\r |
99c048ef | 201 | gBS->CloseEvent (DnsSb->TimerToGetMap);\r |
202 | }\r | |
203 | \r | |
4ad1bd63 | 204 | if (DnsSb->Timer != NULL) {\r |
99c048ef | 205 | gBS->CloseEvent (DnsSb->Timer);\r |
206 | }\r | |
207 | \r | |
208 | FreePool (DnsSb);\r | |
209 | }\r | |
210 | \r | |
211 | /**\r | |
212 | Create then initialize a Dns service binding instance.\r | |
213 | \r | |
214 | @param Controller The controller to install the DNS service\r | |
215 | binding on\r | |
216 | @param Image The driver binding image of the DNS driver\r | |
217 | @param IpVersion IpVersion for this service\r | |
218 | @param Service The variable to receive the created service\r | |
219 | binding instance.\r | |
220 | \r | |
221 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to create the instance.\r | |
222 | @retval EFI_DEVICE_ERROR Failed to create a NULL UDP port to keep\r | |
223 | connection with UDP.\r | |
224 | @retval EFI_SUCCESS The service instance is created for the\r | |
225 | controller.\r | |
226 | \r | |
227 | **/\r | |
228 | EFI_STATUS\r | |
229 | DnsCreateService (\r | |
d1050b9d MK |
230 | IN EFI_HANDLE Controller,\r |
231 | IN EFI_HANDLE Image,\r | |
232 | IN UINT8 IpVersion,\r | |
233 | OUT DNS_SERVICE **Service\r | |
99c048ef | 234 | )\r |
235 | {\r | |
d1050b9d MK |
236 | EFI_STATUS Status;\r |
237 | DNS_SERVICE *DnsSb;\r | |
f75a7f56 | 238 | \r |
d1050b9d MK |
239 | Status = EFI_SUCCESS;\r |
240 | DnsSb = NULL;\r | |
99c048ef | 241 | \r |
d1050b9d | 242 | *Service = NULL;\r |
99c048ef | 243 | \r |
244 | DnsSb = AllocateZeroPool (sizeof (DNS_SERVICE));\r | |
245 | if (DnsSb == NULL) {\r | |
246 | return EFI_OUT_OF_RESOURCES;\r | |
247 | }\r | |
248 | \r | |
249 | DnsSb->Signature = DNS_SERVICE_SIGNATURE;\r | |
250 | \r | |
251 | if (IpVersion == IP_VERSION_4) {\r | |
252 | DnsSb->ServiceBinding = mDns4ServiceBinding;\r | |
253 | } else {\r | |
254 | DnsSb->ServiceBinding = mDns6ServiceBinding;\r | |
255 | }\r | |
f75a7f56 | 256 | \r |
99c048ef | 257 | DnsSb->Dns4ChildrenNum = 0;\r |
258 | InitializeListHead (&DnsSb->Dns4ChildrenList);\r | |
259 | \r | |
260 | DnsSb->Dns6ChildrenNum = 0;\r | |
261 | InitializeListHead (&DnsSb->Dns6ChildrenList);\r | |
262 | \r | |
263 | DnsSb->ControllerHandle = Controller;\r | |
264 | DnsSb->ImageHandle = Image;\r | |
265 | \r | |
d1050b9d | 266 | DnsSb->TimerToGetMap = NULL;\r |
f75a7f56 | 267 | \r |
d1050b9d | 268 | DnsSb->Timer = NULL;\r |
f75a7f56 | 269 | \r |
d1050b9d | 270 | DnsSb->IpVersion = IpVersion;\r |
99c048ef | 271 | \r |
272 | //\r | |
273 | // Create the timer used to time out the procedure which is used to\r | |
274 | // get the default IP address.\r | |
275 | //\r | |
eed4585b JW |
276 | Status = gBS->CreateEvent (\r |
277 | EVT_TIMER,\r | |
278 | TPL_CALLBACK,\r | |
279 | NULL,\r | |
280 | NULL,\r | |
281 | &DnsSb->TimerToGetMap\r | |
282 | );\r | |
283 | if (EFI_ERROR (Status)) {\r | |
284 | FreePool (DnsSb);\r | |
285 | return Status;\r | |
99c048ef | 286 | }\r |
f75a7f56 | 287 | \r |
99c048ef | 288 | //\r |
289 | // Create the timer to retransmit packets.\r | |
290 | //\r | |
291 | Status = gBS->CreateEvent (\r | |
292 | EVT_NOTIFY_SIGNAL | EVT_TIMER,\r | |
293 | TPL_CALLBACK,\r | |
294 | DnsOnTimerRetransmit,\r | |
295 | DnsSb,\r | |
296 | &DnsSb->Timer\r | |
297 | );\r | |
298 | if (EFI_ERROR (Status)) {\r | |
299 | if (DnsSb->TimerToGetMap != NULL) {\r | |
300 | gBS->CloseEvent (DnsSb->TimerToGetMap);\r | |
301 | }\r | |
d1050b9d | 302 | \r |
99c048ef | 303 | FreePool (DnsSb);\r |
304 | return Status;\r | |
305 | }\r | |
f75a7f56 | 306 | \r |
99c048ef | 307 | DnsSb->ConnectUdp = NULL;\r |
308 | DnsSb->ConnectUdp = UdpIoCreateIo (\r | |
309 | Controller,\r | |
310 | Image,\r | |
311 | DnsConfigNullUdp,\r | |
312 | DnsSb->IpVersion,\r | |
313 | NULL\r | |
314 | );\r | |
315 | if (DnsSb->ConnectUdp == NULL) {\r | |
316 | if (DnsSb->TimerToGetMap != NULL) {\r | |
317 | gBS->CloseEvent (DnsSb->TimerToGetMap);\r | |
318 | }\r | |
d1050b9d | 319 | \r |
99c048ef | 320 | gBS->CloseEvent (DnsSb->Timer);\r |
321 | FreePool (DnsSb);\r | |
322 | return EFI_DEVICE_ERROR;\r | |
323 | }\r | |
324 | \r | |
325 | *Service = DnsSb;\r | |
326 | return Status;\r | |
327 | }\r | |
328 | \r | |
329 | /**\r | |
330 | Unloads an image.\r | |
331 | \r | |
332 | @param ImageHandle Handle that identifies the image to be unloaded.\r | |
333 | \r | |
334 | @retval EFI_SUCCESS The image has been unloaded.\r | |
335 | @retval EFI_INVALID_PARAMETER ImageHandle is not a valid image handle.\r | |
336 | \r | |
337 | **/\r | |
f75a7f56 | 338 | EFI_STATUS\r |
99c048ef | 339 | EFIAPI\r |
340 | DnsUnload (\r | |
341 | IN EFI_HANDLE ImageHandle\r | |
342 | )\r | |
343 | {\r | |
344 | EFI_STATUS Status;\r | |
345 | \r | |
d1050b9d MK |
346 | LIST_ENTRY *Entry;\r |
347 | DNS4_CACHE *ItemCache4;\r | |
348 | DNS4_SERVER_IP *ItemServerIp4;\r | |
349 | DNS6_CACHE *ItemCache6;\r | |
350 | DNS6_SERVER_IP *ItemServerIp6;\r | |
99c048ef | 351 | \r |
352 | ItemCache4 = NULL;\r | |
353 | ItemServerIp4 = NULL;\r | |
354 | ItemCache6 = NULL;\r | |
355 | ItemServerIp6 = NULL;\r | |
f75a7f56 | 356 | \r |
99c048ef | 357 | //\r |
358 | // Disconnect the driver specified by ImageHandle\r | |
359 | //\r | |
d1050b9d | 360 | Status = NetLibDefaultUnload (ImageHandle);\r |
99c048ef | 361 | if (EFI_ERROR (Status)) {\r |
362 | return Status;\r | |
363 | }\r | |
364 | \r | |
365 | //\r | |
366 | // Free mDriverData.\r | |
367 | //\r | |
368 | if (mDriverData != NULL) {\r | |
369 | if (mDriverData->Timer != NULL) {\r | |
370 | gBS->CloseEvent (mDriverData->Timer);\r | |
371 | }\r | |
f75a7f56 | 372 | \r |
99c048ef | 373 | while (!IsListEmpty (&mDriverData->Dns4CacheList)) {\r |
374 | Entry = NetListRemoveHead (&mDriverData->Dns4CacheList);\r | |
62a623de | 375 | ASSERT (Entry != NULL);\r |
99c048ef | 376 | ItemCache4 = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);\r |
62a623de JW |
377 | FreePool (ItemCache4->DnsCache.HostName);\r |
378 | FreePool (ItemCache4->DnsCache.IpAddress);\r | |
99c048ef | 379 | FreePool (ItemCache4);\r |
380 | }\r | |
381 | \r | |
382 | while (!IsListEmpty (&mDriverData->Dns4ServerList)) {\r | |
383 | Entry = NetListRemoveHead (&mDriverData->Dns4ServerList);\r | |
62a623de | 384 | ASSERT (Entry != NULL);\r |
99c048ef | 385 | ItemServerIp4 = NET_LIST_USER_STRUCT (Entry, DNS4_SERVER_IP, AllServerLink);\r |
386 | FreePool (ItemServerIp4);\r | |
387 | }\r | |
388 | \r | |
389 | while (!IsListEmpty (&mDriverData->Dns6CacheList)) {\r | |
390 | Entry = NetListRemoveHead (&mDriverData->Dns6CacheList);\r | |
62a623de | 391 | ASSERT (Entry != NULL);\r |
99c048ef | 392 | ItemCache6 = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);\r |
62a623de JW |
393 | FreePool (ItemCache6->DnsCache.HostName);\r |
394 | FreePool (ItemCache6->DnsCache.IpAddress);\r | |
99c048ef | 395 | FreePool (ItemCache6);\r |
396 | }\r | |
397 | \r | |
398 | while (!IsListEmpty (&mDriverData->Dns6ServerList)) {\r | |
399 | Entry = NetListRemoveHead (&mDriverData->Dns6ServerList);\r | |
62a623de | 400 | ASSERT (Entry != NULL);\r |
99c048ef | 401 | ItemServerIp6 = NET_LIST_USER_STRUCT (Entry, DNS6_SERVER_IP, AllServerLink);\r |
402 | FreePool (ItemServerIp6);\r | |
403 | }\r | |
f75a7f56 | 404 | \r |
99c048ef | 405 | FreePool (mDriverData);\r |
406 | }\r | |
f75a7f56 | 407 | \r |
99c048ef | 408 | return Status;\r |
409 | }\r | |
410 | \r | |
411 | /**\r | |
412 | This is the declaration of an EFI image entry point. This entry point is\r | |
413 | the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including\r | |
414 | both device drivers and bus drivers.\r | |
415 | \r | |
416 | @param ImageHandle The firmware allocated handle for the UEFI image.\r | |
417 | @param SystemTable A pointer to the EFI System Table.\r | |
418 | \r | |
419 | @retval EFI_SUCCESS The operation completed successfully.\r | |
420 | @retval Others An unexpected error occurred.\r | |
421 | **/\r | |
422 | EFI_STATUS\r | |
423 | EFIAPI\r | |
424 | DnsDriverEntryPoint (\r | |
425 | IN EFI_HANDLE ImageHandle,\r | |
426 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
427 | )\r | |
428 | {\r | |
429 | EFI_STATUS Status;\r | |
430 | \r | |
431 | Status = EFI_SUCCESS;\r | |
432 | \r | |
433 | //\r | |
434 | // Install the Dns4 Driver Binding Protocol.\r | |
435 | //\r | |
436 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
437 | ImageHandle,\r | |
438 | SystemTable,\r | |
439 | &gDns4DriverBinding,\r | |
440 | ImageHandle,\r | |
441 | &gDnsComponentName,\r | |
442 | &gDnsComponentName2\r | |
443 | );\r | |
444 | if (EFI_ERROR (Status)) {\r | |
445 | return Status;\r | |
446 | }\r | |
447 | \r | |
448 | //\r | |
449 | // Install the Dns6 Driver Binding Protocol.\r | |
450 | //\r | |
451 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
452 | ImageHandle,\r | |
453 | SystemTable,\r | |
454 | &gDns6DriverBinding,\r | |
455 | NULL,\r | |
456 | &gDnsComponentName,\r | |
457 | &gDnsComponentName2\r | |
458 | );\r | |
459 | if (EFI_ERROR (Status)) {\r | |
460 | goto Error1;\r | |
461 | }\r | |
462 | \r | |
463 | //\r | |
464 | // Create the driver data structures.\r | |
465 | //\r | |
466 | mDriverData = AllocateZeroPool (sizeof (DNS_DRIVER_DATA));\r | |
467 | if (mDriverData == NULL) {\r | |
468 | Status = EFI_OUT_OF_RESOURCES;\r | |
469 | goto Error2;\r | |
470 | }\r | |
471 | \r | |
472 | //\r | |
473 | // Create the timer event to update DNS cache list.\r | |
474 | //\r | |
475 | Status = gBS->CreateEvent (\r | |
476 | EVT_NOTIFY_SIGNAL | EVT_TIMER,\r | |
477 | TPL_CALLBACK,\r | |
478 | DnsOnTimerUpdate,\r | |
479 | NULL,\r | |
480 | &mDriverData->Timer\r | |
481 | );\r | |
482 | if (EFI_ERROR (Status)) {\r | |
483 | goto Error3;\r | |
484 | }\r | |
f75a7f56 | 485 | \r |
99c048ef | 486 | Status = gBS->SetTimer (mDriverData->Timer, TimerPeriodic, TICKS_PER_SECOND);\r |
487 | if (EFI_ERROR (Status)) {\r | |
488 | goto Error4;\r | |
489 | }\r | |
490 | \r | |
491 | InitializeListHead (&mDriverData->Dns4CacheList);\r | |
492 | InitializeListHead (&mDriverData->Dns4ServerList);\r | |
493 | InitializeListHead (&mDriverData->Dns6CacheList);\r | |
494 | InitializeListHead (&mDriverData->Dns6ServerList);\r | |
f75a7f56 | 495 | \r |
99c048ef | 496 | return Status;\r |
497 | \r | |
d1050b9d MK |
498 | Error4:\r |
499 | gBS->CloseEvent (mDriverData->Timer);\r | |
99c048ef | 500 | \r |
d1050b9d MK |
501 | Error3:\r |
502 | FreePool (mDriverData);\r | |
f75a7f56 | 503 | \r |
d1050b9d MK |
504 | Error2:\r |
505 | EfiLibUninstallDriverBindingComponentName2 (\r | |
506 | &gDns6DriverBinding,\r | |
507 | &gDnsComponentName,\r | |
508 | &gDnsComponentName2\r | |
509 | );\r | |
99c048ef | 510 | \r |
d1050b9d MK |
511 | Error1:\r |
512 | EfiLibUninstallDriverBindingComponentName2 (\r | |
513 | &gDns4DriverBinding,\r | |
514 | &gDnsComponentName,\r | |
515 | &gDnsComponentName2\r | |
516 | );\r | |
f75a7f56 | 517 | \r |
99c048ef | 518 | return Status;\r |
519 | }\r | |
520 | \r | |
521 | /**\r | |
f75a7f56 | 522 | Tests to see if this driver supports a given controller. If a child device is provided,\r |
99c048ef | 523 | it further tests to see if this driver supports creating a handle for the specified child device.\r |
524 | \r | |
f75a7f56 LG |
525 | This function checks to see if the driver specified by This supports the device specified by\r |
526 | ControllerHandle. Drivers will typically use the device path attached to\r | |
527 | ControllerHandle and/or the services from the bus I/O abstraction attached to\r | |
528 | ControllerHandle to determine if the driver supports ControllerHandle. This function\r | |
529 | may be called many times during platform initialization. In order to reduce boot times, the tests\r | |
530 | performed by this function must be very small, and take as little time as possible to execute. This\r | |
531 | function must not change the state of any hardware devices, and this function must be aware that the\r | |
532 | device specified by ControllerHandle may already be managed by the same driver or a\r | |
533 | different driver. This function must match its calls to AllocatePages() with FreePages(),\r | |
534 | AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().\r | |
535 | Because ControllerHandle may have been previously started by the same driver, if a protocol is\r | |
536 | already in the opened state, then it must not be closed with CloseProtocol(). This is required\r | |
99c048ef | 537 | to guarantee the state of ControllerHandle is not modified by this function.\r |
538 | \r | |
539 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
f75a7f56 LG |
540 | @param[in] ControllerHandle The handle of the controller to test. This handle\r |
541 | must support a protocol interface that supplies\r | |
99c048ef | 542 | an I/O abstraction to the driver.\r |
f75a7f56 LG |
543 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r |
544 | parameter is ignored by device drivers, and is optional for bus\r | |
545 | drivers. For bus drivers, if this parameter is not NULL, then\r | |
546 | the bus driver must determine if the bus controller specified\r | |
547 | by ControllerHandle and the child controller specified\r | |
548 | by RemainingDevicePath are both supported by this\r | |
99c048ef | 549 | bus driver.\r |
550 | \r | |
551 | @retval EFI_SUCCESS The device specified by ControllerHandle and\r | |
552 | RemainingDevicePath is supported by the driver specified by This.\r | |
553 | @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r | |
554 | RemainingDevicePath is already being managed by the driver\r | |
555 | specified by This.\r | |
556 | @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r | |
557 | RemainingDevicePath is already being managed by a different\r | |
558 | driver or an application that requires exclusive access.\r | |
559 | Currently not implemented.\r | |
560 | @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r | |
561 | RemainingDevicePath is not supported by the driver specified by This.\r | |
562 | **/\r | |
563 | EFI_STATUS\r | |
564 | EFIAPI\r | |
565 | Dns4DriverBindingSupported (\r | |
566 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
567 | IN EFI_HANDLE ControllerHandle,\r | |
568 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r | |
569 | )\r | |
570 | {\r | |
571 | EFI_STATUS Status;\r | |
572 | \r | |
573 | //\r | |
574 | // Test for the Dns4ServiceBinding Protocol.\r | |
575 | //\r | |
576 | Status = gBS->OpenProtocol (\r | |
577 | ControllerHandle,\r | |
578 | &gEfiDns4ServiceBindingProtocolGuid,\r | |
579 | NULL,\r | |
580 | This->DriverBindingHandle,\r | |
581 | ControllerHandle,\r | |
582 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
583 | );\r | |
584 | if (!EFI_ERROR (Status)) {\r | |
585 | return EFI_ALREADY_STARTED;\r | |
586 | }\r | |
587 | \r | |
588 | //\r | |
589 | // Test for the Udp4ServiceBinding Protocol.\r | |
590 | //\r | |
591 | Status = gBS->OpenProtocol (\r | |
592 | ControllerHandle,\r | |
593 | &gEfiUdp4ServiceBindingProtocolGuid,\r | |
594 | NULL,\r | |
595 | This->DriverBindingHandle,\r | |
596 | ControllerHandle,\r | |
597 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
598 | );\r | |
599 | \r | |
600 | return Status;\r | |
601 | }\r | |
602 | \r | |
603 | /**\r | |
604 | Starts a device controller or a bus controller.\r | |
605 | \r | |
606 | The Start() function is designed to be invoked from the EFI boot service ConnectController().\r | |
f75a7f56 LG |
607 | As a result, much of the error checking on the parameters to Start() has been moved into this\r |
608 | common boot service. It is legal to call Start() from other locations,\r | |
99c048ef | 609 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
610 | 1. ControllerHandle must be a valid EFI_HANDLE.\r | |
611 | 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r | |
612 | EFI_DEVICE_PATH_PROTOCOL.\r | |
613 | 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r | |
f75a7f56 | 614 | have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.\r |
99c048ef | 615 | \r |
616 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
f75a7f56 LG |
617 | @param[in] ControllerHandle The handle of the controller to start. This handle\r |
618 | must support a protocol interface that supplies\r | |
99c048ef | 619 | an I/O abstraction to the driver.\r |
f75a7f56 LG |
620 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r |
621 | parameter is ignored by device drivers, and is optional for bus\r | |
622 | drivers. For a bus driver, if this parameter is NULL, then handles\r | |
623 | for all the children of Controller are created by this driver.\r | |
624 | If this parameter is not NULL and the first Device Path Node is\r | |
625 | not the End of Device Path Node, then only the handle for the\r | |
626 | child device specified by the first Device Path Node of\r | |
99c048ef | 627 | RemainingDevicePath is created by this driver.\r |
f75a7f56 | 628 | If the first Device Path Node of RemainingDevicePath is\r |
99c048ef | 629 | the End of Device Path Node, no child handle is created by this\r |
630 | driver.\r | |
631 | \r | |
632 | @retval EFI_SUCCESS The device was started.\r | |
633 | @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r | |
634 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
81a46615 | 635 | @retval Others The driver failed to start the device.\r |
99c048ef | 636 | \r |
637 | **/\r | |
638 | EFI_STATUS\r | |
639 | EFIAPI\r | |
640 | Dns4DriverBindingStart (\r | |
641 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
642 | IN EFI_HANDLE ControllerHandle,\r | |
643 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r | |
644 | )\r | |
645 | {\r | |
d1050b9d MK |
646 | DNS_SERVICE *DnsSb;\r |
647 | EFI_STATUS Status;\r | |
99c048ef | 648 | \r |
649 | Status = DnsCreateService (ControllerHandle, This->DriverBindingHandle, IP_VERSION_4, &DnsSb);\r | |
650 | if (EFI_ERROR (Status)) {\r | |
651 | return Status;\r | |
652 | }\r | |
f75a7f56 | 653 | \r |
99c048ef | 654 | ASSERT (DnsSb != NULL);\r |
f75a7f56 | 655 | \r |
99c048ef | 656 | Status = gBS->SetTimer (DnsSb->Timer, TimerPeriodic, TICKS_PER_SECOND);\r |
657 | if (EFI_ERROR (Status)) {\r | |
658 | goto ON_ERROR;\r | |
659 | }\r | |
f75a7f56 | 660 | \r |
99c048ef | 661 | //\r |
662 | // Install the Dns4ServiceBinding Protocol onto ControllerHandle.\r | |
663 | //\r | |
664 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
665 | &ControllerHandle,\r | |
666 | &gEfiDns4ServiceBindingProtocolGuid,\r | |
667 | &DnsSb->ServiceBinding,\r | |
668 | NULL\r | |
669 | );\r | |
670 | if (EFI_ERROR (Status)) {\r | |
671 | goto ON_ERROR;\r | |
672 | }\r | |
673 | \r | |
674 | return EFI_SUCCESS;\r | |
675 | \r | |
676 | ON_ERROR:\r | |
677 | DnsDestroyService (DnsSb);\r | |
678 | \r | |
679 | return Status;\r | |
680 | }\r | |
681 | \r | |
682 | /**\r | |
683 | Stops a device controller or a bus controller.\r | |
f75a7f56 LG |
684 | \r |
685 | The Stop() function is designed to be invoked from the EFI boot service DisconnectController().\r | |
686 | As a result, much of the error checking on the parameters to Stop() has been moved\r | |
687 | into this common boot service. It is legal to call Stop() from other locations,\r | |
99c048ef | 688 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
689 | 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r | |
690 | same driver's Start() function.\r | |
691 | 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r | |
692 | EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r | |
693 | Start() function, and the Start() function must have called OpenProtocol() on\r | |
694 | ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r | |
f75a7f56 | 695 | \r |
99c048ef | 696 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
f75a7f56 LG |
697 | @param[in] ControllerHandle A handle to the device being stopped. The handle must\r |
698 | support a bus specific I/O protocol for the driver\r | |
99c048ef | 699 | to use to stop the device.\r |
700 | @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r | |
f75a7f56 | 701 | @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r |
99c048ef | 702 | if NumberOfChildren is 0.\r |
703 | \r | |
704 | @retval EFI_SUCCESS The device was stopped.\r | |
705 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r | |
706 | \r | |
707 | **/\r | |
708 | EFI_STATUS\r | |
709 | EFIAPI\r | |
710 | Dns4DriverBindingStop (\r | |
711 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
712 | IN EFI_HANDLE ControllerHandle,\r | |
713 | IN UINTN NumberOfChildren,\r | |
714 | IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r | |
715 | )\r | |
716 | {\r | |
d1050b9d MK |
717 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r |
718 | DNS_SERVICE *DnsSb;\r | |
719 | EFI_HANDLE NicHandle;\r | |
720 | EFI_STATUS Status;\r | |
721 | LIST_ENTRY *List;\r | |
722 | DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;\r | |
99c048ef | 723 | \r |
724 | //\r | |
725 | // DNS driver opens UDP child, So, Controller is a UDP\r | |
726 | // child handle. Locate the Nic handle first. Then get the\r | |
727 | // DNS private data back.\r | |
728 | //\r | |
729 | NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiUdp4ProtocolGuid);\r | |
730 | \r | |
731 | if (NicHandle == NULL) {\r | |
732 | return EFI_SUCCESS;\r | |
733 | }\r | |
734 | \r | |
735 | Status = gBS->OpenProtocol (\r | |
736 | NicHandle,\r | |
737 | &gEfiDns4ServiceBindingProtocolGuid,\r | |
d1050b9d | 738 | (VOID **)&ServiceBinding,\r |
99c048ef | 739 | This->DriverBindingHandle,\r |
740 | NicHandle,\r | |
741 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
742 | );\r | |
743 | if (EFI_ERROR (Status)) {\r | |
744 | return EFI_DEVICE_ERROR;\r | |
745 | }\r | |
746 | \r | |
747 | DnsSb = DNS_SERVICE_FROM_THIS (ServiceBinding);\r | |
748 | \r | |
749 | if (!IsListEmpty (&DnsSb->Dns4ChildrenList)) {\r | |
750 | //\r | |
751 | // Destroy the Dns child instance in ChildHandleBuffer.\r | |
752 | //\r | |
d1050b9d | 753 | List = &DnsSb->Dns4ChildrenList;\r |
99c048ef | 754 | Context.ServiceBinding = ServiceBinding;\r |
755 | Context.NumberOfChildren = NumberOfChildren;\r | |
756 | Context.ChildHandleBuffer = ChildHandleBuffer;\r | |
d1050b9d MK |
757 | Status = NetDestroyLinkList (\r |
758 | List,\r | |
759 | DnsDestroyChildEntryInHandleBuffer,\r | |
760 | &Context,\r | |
761 | NULL\r | |
762 | );\r | |
99c048ef | 763 | }\r |
764 | \r | |
d1050b9d | 765 | if ((NumberOfChildren == 0) && IsListEmpty (&DnsSb->Dns4ChildrenList)) {\r |
99c048ef | 766 | gBS->UninstallProtocolInterface (\r |
767 | NicHandle,\r | |
768 | &gEfiDns4ServiceBindingProtocolGuid,\r | |
769 | ServiceBinding\r | |
770 | );\r | |
771 | \r | |
772 | DnsDestroyService (DnsSb);\r | |
f75a7f56 | 773 | \r |
99c048ef | 774 | if (gDnsControllerNameTable != NULL) {\r |
775 | FreeUnicodeStringTable (gDnsControllerNameTable);\r | |
776 | gDnsControllerNameTable = NULL;\r | |
777 | }\r | |
778 | \r | |
779 | Status = EFI_SUCCESS;\r | |
780 | }\r | |
781 | \r | |
782 | return Status;\r | |
783 | }\r | |
784 | \r | |
785 | /**\r | |
f75a7f56 | 786 | Tests to see if this driver supports a given controller. If a child device is provided,\r |
99c048ef | 787 | it further tests to see if this driver supports creating a handle for the specified child device.\r |
788 | \r | |
f75a7f56 LG |
789 | This function checks to see if the driver specified by This supports the device specified by\r |
790 | ControllerHandle. Drivers will typically use the device path attached to\r | |
791 | ControllerHandle and/or the services from the bus I/O abstraction attached to\r | |
792 | ControllerHandle to determine if the driver supports ControllerHandle. This function\r | |
793 | may be called many times during platform initialization. In order to reduce boot times, the tests\r | |
794 | performed by this function must be very small, and take as little time as possible to execute. This\r | |
795 | function must not change the state of any hardware devices, and this function must be aware that the\r | |
796 | device specified by ControllerHandle may already be managed by the same driver or a\r | |
797 | different driver. This function must match its calls to AllocatePages() with FreePages(),\r | |
798 | AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().\r | |
799 | Because ControllerHandle may have been previously started by the same driver, if a protocol is\r | |
800 | already in the opened state, then it must not be closed with CloseProtocol(). This is required\r | |
99c048ef | 801 | to guarantee the state of ControllerHandle is not modified by this function.\r |
802 | \r | |
803 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
f75a7f56 LG |
804 | @param[in] ControllerHandle The handle of the controller to test. This handle\r |
805 | must support a protocol interface that supplies\r | |
99c048ef | 806 | an I/O abstraction to the driver.\r |
f75a7f56 LG |
807 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r |
808 | parameter is ignored by device drivers, and is optional for bus\r | |
809 | drivers. For bus drivers, if this parameter is not NULL, then\r | |
810 | the bus driver must determine if the bus controller specified\r | |
811 | by ControllerHandle and the child controller specified\r | |
812 | by RemainingDevicePath are both supported by this\r | |
99c048ef | 813 | bus driver.\r |
814 | \r | |
815 | @retval EFI_SUCCESS The device specified by ControllerHandle and\r | |
816 | RemainingDevicePath is supported by the driver specified by This.\r | |
817 | @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r | |
818 | RemainingDevicePath is already being managed by the driver\r | |
819 | specified by This.\r | |
820 | @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r | |
821 | RemainingDevicePath is already being managed by a different\r | |
822 | driver or an application that requires exclusive access.\r | |
823 | Currently not implemented.\r | |
824 | @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r | |
825 | RemainingDevicePath is not supported by the driver specified by This.\r | |
826 | **/\r | |
827 | EFI_STATUS\r | |
828 | EFIAPI\r | |
829 | Dns6DriverBindingSupported (\r | |
830 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
831 | IN EFI_HANDLE ControllerHandle,\r | |
832 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r | |
833 | )\r | |
834 | {\r | |
835 | EFI_STATUS Status;\r | |
836 | \r | |
837 | //\r | |
838 | // Test for the Dns6ServiceBinding Protocol\r | |
839 | //\r | |
840 | Status = gBS->OpenProtocol (\r | |
841 | ControllerHandle,\r | |
842 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
843 | NULL,\r | |
844 | This->DriverBindingHandle,\r | |
845 | ControllerHandle,\r | |
846 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
847 | );\r | |
848 | if (!EFI_ERROR (Status)) {\r | |
849 | return EFI_ALREADY_STARTED;\r | |
850 | }\r | |
851 | \r | |
852 | //\r | |
853 | // Test for the Udp6ServiceBinding Protocol\r | |
854 | //\r | |
855 | Status = gBS->OpenProtocol (\r | |
856 | ControllerHandle,\r | |
857 | &gEfiUdp6ServiceBindingProtocolGuid,\r | |
858 | NULL,\r | |
859 | This->DriverBindingHandle,\r | |
860 | ControllerHandle,\r | |
861 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
862 | );\r | |
863 | \r | |
864 | return Status;\r | |
865 | }\r | |
866 | \r | |
867 | /**\r | |
868 | Starts a device controller or a bus controller.\r | |
869 | \r | |
870 | The Start() function is designed to be invoked from the EFI boot service ConnectController().\r | |
f75a7f56 LG |
871 | As a result, much of the error checking on the parameters to Start() has been moved into this\r |
872 | common boot service. It is legal to call Start() from other locations,\r | |
99c048ef | 873 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
874 | 1. ControllerHandle must be a valid EFI_HANDLE.\r | |
875 | 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r | |
876 | EFI_DEVICE_PATH_PROTOCOL.\r | |
877 | 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r | |
f75a7f56 | 878 | have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.\r |
99c048ef | 879 | \r |
880 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
f75a7f56 LG |
881 | @param[in] ControllerHandle The handle of the controller to start. This handle\r |
882 | must support a protocol interface that supplies\r | |
99c048ef | 883 | an I/O abstraction to the driver.\r |
f75a7f56 LG |
884 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r |
885 | parameter is ignored by device drivers, and is optional for bus\r | |
886 | drivers. For a bus driver, if this parameter is NULL, then handles\r | |
887 | for all the children of Controller are created by this driver.\r | |
888 | If this parameter is not NULL and the first Device Path Node is\r | |
889 | not the End of Device Path Node, then only the handle for the\r | |
890 | child device specified by the first Device Path Node of\r | |
99c048ef | 891 | RemainingDevicePath is created by this driver.\r |
f75a7f56 | 892 | If the first Device Path Node of RemainingDevicePath is\r |
99c048ef | 893 | the End of Device Path Node, no child handle is created by this\r |
894 | driver.\r | |
895 | \r | |
896 | @retval EFI_SUCCESS The device was started.\r | |
897 | @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r | |
898 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
81a46615 | 899 | @retval Others The driver failed to start the device.\r |
99c048ef | 900 | \r |
901 | **/\r | |
902 | EFI_STATUS\r | |
903 | EFIAPI\r | |
904 | Dns6DriverBindingStart (\r | |
905 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
906 | IN EFI_HANDLE ControllerHandle,\r | |
907 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r | |
908 | )\r | |
909 | {\r | |
d1050b9d MK |
910 | DNS_SERVICE *DnsSb;\r |
911 | EFI_STATUS Status;\r | |
99c048ef | 912 | \r |
913 | Status = DnsCreateService (ControllerHandle, This->DriverBindingHandle, IP_VERSION_6, &DnsSb);\r | |
914 | if (EFI_ERROR (Status)) {\r | |
915 | return Status;\r | |
916 | }\r | |
f75a7f56 | 917 | \r |
99c048ef | 918 | ASSERT (DnsSb != NULL);\r |
f75a7f56 | 919 | \r |
99c048ef | 920 | Status = gBS->SetTimer (DnsSb->Timer, TimerPeriodic, TICKS_PER_SECOND);\r |
921 | if (EFI_ERROR (Status)) {\r | |
922 | goto ON_ERROR;\r | |
923 | }\r | |
f75a7f56 | 924 | \r |
99c048ef | 925 | //\r |
926 | // Install the Dns6ServiceBinding Protocol onto ControllerHandle\r | |
927 | //\r | |
928 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
929 | &ControllerHandle,\r | |
930 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
931 | &DnsSb->ServiceBinding,\r | |
932 | NULL\r | |
933 | );\r | |
934 | \r | |
935 | if (EFI_ERROR (Status)) {\r | |
936 | goto ON_ERROR;\r | |
937 | }\r | |
938 | \r | |
939 | return EFI_SUCCESS;\r | |
940 | \r | |
941 | ON_ERROR:\r | |
942 | DnsDestroyService (DnsSb);\r | |
943 | \r | |
944 | return Status;\r | |
945 | }\r | |
946 | \r | |
947 | /**\r | |
948 | Stops a device controller or a bus controller.\r | |
f75a7f56 LG |
949 | \r |
950 | The Stop() function is designed to be invoked from the EFI boot service DisconnectController().\r | |
951 | As a result, much of the error checking on the parameters to Stop() has been moved\r | |
952 | into this common boot service. It is legal to call Stop() from other locations,\r | |
99c048ef | 953 | but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r |
954 | 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r | |
955 | same driver's Start() function.\r | |
956 | 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r | |
957 | EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r | |
958 | Start() function, and the Start() function must have called OpenProtocol() on\r | |
959 | ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r | |
f75a7f56 | 960 | \r |
99c048ef | 961 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r |
f75a7f56 LG |
962 | @param[in] ControllerHandle A handle to the device being stopped. The handle must\r |
963 | support a bus specific I/O protocol for the driver\r | |
99c048ef | 964 | to use to stop the device.\r |
965 | @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r | |
f75a7f56 | 966 | @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r |
99c048ef | 967 | if NumberOfChildren is 0.\r |
968 | \r | |
969 | @retval EFI_SUCCESS The device was stopped.\r | |
970 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r | |
971 | \r | |
972 | **/\r | |
973 | EFI_STATUS\r | |
974 | EFIAPI\r | |
975 | Dns6DriverBindingStop (\r | |
976 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
977 | IN EFI_HANDLE ControllerHandle,\r | |
978 | IN UINTN NumberOfChildren,\r | |
979 | IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r | |
980 | )\r | |
981 | {\r | |
d1050b9d MK |
982 | EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r |
983 | DNS_SERVICE *DnsSb;\r | |
984 | EFI_HANDLE NicHandle;\r | |
985 | EFI_STATUS Status;\r | |
986 | LIST_ENTRY *List;\r | |
987 | DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;\r | |
99c048ef | 988 | \r |
989 | //\r | |
990 | // DNS driver opens UDP child, So, Controller is a UDP\r | |
991 | // child handle. Locate the Nic handle first. Then get the\r | |
992 | // DNS private data back.\r | |
993 | //\r | |
994 | NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiUdp6ProtocolGuid);\r | |
995 | \r | |
996 | if (NicHandle == NULL) {\r | |
997 | return EFI_SUCCESS;\r | |
998 | }\r | |
999 | \r | |
1000 | Status = gBS->OpenProtocol (\r | |
1001 | NicHandle,\r | |
1002 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
d1050b9d | 1003 | (VOID **)&ServiceBinding,\r |
99c048ef | 1004 | This->DriverBindingHandle,\r |
1005 | NicHandle,\r | |
1006 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1007 | );\r | |
1008 | if (EFI_ERROR (Status)) {\r | |
1009 | return EFI_DEVICE_ERROR;\r | |
1010 | }\r | |
1011 | \r | |
1012 | DnsSb = DNS_SERVICE_FROM_THIS (ServiceBinding);\r | |
1013 | \r | |
1014 | if (!IsListEmpty (&DnsSb->Dns6ChildrenList)) {\r | |
1015 | //\r | |
1016 | // Destroy the Dns child instance in ChildHandleBuffer.\r | |
1017 | //\r | |
d1050b9d | 1018 | List = &DnsSb->Dns6ChildrenList;\r |
99c048ef | 1019 | Context.ServiceBinding = ServiceBinding;\r |
1020 | Context.NumberOfChildren = NumberOfChildren;\r | |
1021 | Context.ChildHandleBuffer = ChildHandleBuffer;\r | |
d1050b9d MK |
1022 | Status = NetDestroyLinkList (\r |
1023 | List,\r | |
1024 | DnsDestroyChildEntryInHandleBuffer,\r | |
1025 | &Context,\r | |
1026 | NULL\r | |
1027 | );\r | |
99c048ef | 1028 | }\r |
1029 | \r | |
d1050b9d | 1030 | if ((NumberOfChildren == 0) && IsListEmpty (&DnsSb->Dns6ChildrenList)) {\r |
99c048ef | 1031 | gBS->UninstallProtocolInterface (\r |
1032 | NicHandle,\r | |
1033 | &gEfiDns6ServiceBindingProtocolGuid,\r | |
1034 | ServiceBinding\r | |
1035 | );\r | |
1036 | \r | |
1037 | DnsDestroyService (DnsSb);\r | |
f75a7f56 | 1038 | \r |
99c048ef | 1039 | if (gDnsControllerNameTable != NULL) {\r |
1040 | FreeUnicodeStringTable (gDnsControllerNameTable);\r | |
1041 | gDnsControllerNameTable = NULL;\r | |
1042 | }\r | |
f75a7f56 | 1043 | \r |
99c048ef | 1044 | Status = EFI_SUCCESS;\r |
1045 | }\r | |
1046 | \r | |
1047 | return Status;\r | |
1048 | }\r | |
1049 | \r | |
1050 | /**\r | |
1051 | Creates a child handle and installs a protocol.\r | |
f75a7f56 LG |
1052 | \r |
1053 | The CreateChild() function installs a protocol on ChildHandle.\r | |
1054 | If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.\r | |
99c048ef | 1055 | If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.\r |
1056 | \r | |
1057 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r | |
1058 | @param[in] ChildHandle Pointer to the handle of the child to create. If it is NULL,\r | |
f75a7f56 | 1059 | then a new handle is created. If it is a pointer to an existing UEFI handle,\r |
99c048ef | 1060 | then the protocol is added to the existing UEFI handle.\r |
1061 | \r | |
81a46615 | 1062 | @retval EFI_SUCCESS The protocol was added to ChildHandle.\r |
99c048ef | 1063 | @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r |
c2adf51f | 1064 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create\r |
99c048ef | 1065 | the child\r |
1066 | @retval other The child handle was not created\r | |
1067 | \r | |
1068 | **/\r | |
1069 | EFI_STATUS\r | |
1070 | EFIAPI\r | |
1071 | Dns4ServiceBindingCreateChild (\r | |
1072 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
1073 | IN EFI_HANDLE *ChildHandle\r | |
1074 | )\r | |
1075 | {\r | |
d1050b9d MK |
1076 | DNS_SERVICE *DnsSb;\r |
1077 | DNS_INSTANCE *Instance;\r | |
1078 | EFI_STATUS Status;\r | |
1079 | EFI_TPL OldTpl;\r | |
1080 | VOID *Udp4;\r | |
99c048ef | 1081 | \r |
1082 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
1083 | return EFI_INVALID_PARAMETER;\r | |
1084 | }\r | |
1085 | \r | |
1086 | DnsSb = DNS_SERVICE_FROM_THIS (This);\r | |
1087 | \r | |
1088 | Status = DnsCreateInstance (DnsSb, &Instance);\r | |
1089 | if (EFI_ERROR (Status)) {\r | |
1090 | return Status;\r | |
1091 | }\r | |
d1050b9d | 1092 | \r |
99c048ef | 1093 | ASSERT (Instance != NULL);\r |
1094 | \r | |
1095 | //\r | |
1096 | // Install the DNS protocol onto ChildHandle\r | |
1097 | //\r | |
1098 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1099 | ChildHandle,\r | |
1100 | &gEfiDns4ProtocolGuid,\r | |
1101 | &Instance->Dns4,\r | |
1102 | NULL\r | |
1103 | );\r | |
1104 | if (EFI_ERROR (Status)) {\r | |
1105 | goto ON_ERROR;\r | |
1106 | }\r | |
1107 | \r | |
1108 | Instance->ChildHandle = *ChildHandle;\r | |
1109 | \r | |
1110 | //\r | |
1111 | // Open the Udp4 protocol BY_CHILD.\r | |
1112 | //\r | |
1113 | Status = gBS->OpenProtocol (\r | |
1114 | DnsSb->ConnectUdp->UdpHandle,\r | |
1115 | &gEfiUdp4ProtocolGuid,\r | |
d1050b9d | 1116 | (VOID **)&Udp4,\r |
99c048ef | 1117 | gDns4DriverBinding.DriverBindingHandle,\r |
1118 | Instance->ChildHandle,\r | |
1119 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
1120 | );\r | |
1121 | if (EFI_ERROR (Status)) {\r | |
1122 | gBS->UninstallMultipleProtocolInterfaces (\r | |
1123 | Instance->ChildHandle,\r | |
1124 | &gEfiDns4ProtocolGuid,\r | |
1125 | &Instance->Dns4,\r | |
1126 | NULL\r | |
1127 | );\r | |
f75a7f56 | 1128 | \r |
99c048ef | 1129 | goto ON_ERROR;\r |
1130 | }\r | |
1131 | \r | |
1132 | //\r | |
1133 | // Open the Udp4 protocol by child.\r | |
1134 | //\r | |
1135 | Status = gBS->OpenProtocol (\r | |
1136 | Instance->UdpIo->UdpHandle,\r | |
1137 | &gEfiUdp4ProtocolGuid,\r | |
d1050b9d | 1138 | (VOID **)&Udp4,\r |
99c048ef | 1139 | gDns4DriverBinding.DriverBindingHandle,\r |
1140 | Instance->ChildHandle,\r | |
1141 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
1142 | );\r | |
1143 | if (EFI_ERROR (Status)) {\r | |
1144 | //\r | |
1145 | // Close the Udp4 protocol.\r | |
1146 | //\r | |
1147 | gBS->CloseProtocol (\r | |
1148 | DnsSb->ConnectUdp->UdpHandle,\r | |
1149 | &gEfiUdp4ProtocolGuid,\r | |
1150 | gDns4DriverBinding.DriverBindingHandle,\r | |
bf7249df | 1151 | *ChildHandle\r |
99c048ef | 1152 | );\r |
f75a7f56 | 1153 | \r |
d1050b9d MK |
1154 | gBS->UninstallMultipleProtocolInterfaces (\r |
1155 | Instance->ChildHandle,\r | |
1156 | &gEfiDns4ProtocolGuid,\r | |
1157 | &Instance->Dns4,\r | |
1158 | NULL\r | |
1159 | );\r | |
f75a7f56 | 1160 | \r |
99c048ef | 1161 | goto ON_ERROR;\r |
1162 | }\r | |
1163 | \r | |
1164 | //\r | |
1165 | // Add it to the parent's child list.\r | |
1166 | //\r | |
1167 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1168 | \r | |
1169 | InsertTailList (&DnsSb->Dns4ChildrenList, &Instance->Link);\r | |
1170 | DnsSb->Dns4ChildrenNum++;\r | |
1171 | \r | |
1172 | gBS->RestoreTPL (OldTpl);\r | |
1173 | \r | |
1174 | return EFI_SUCCESS;\r | |
1175 | \r | |
1176 | ON_ERROR:\r | |
1177 | \r | |
1178 | DnsDestroyInstance (Instance);\r | |
1179 | return Status;\r | |
1180 | }\r | |
1181 | \r | |
1182 | /**\r | |
1183 | Destroys a child handle with a protocol installed on it.\r | |
f75a7f56 LG |
1184 | \r |
1185 | The DestroyChild() function does the opposite of CreateChild(). It removes a protocol\r | |
1186 | that was installed by CreateChild() from ChildHandle. If the removed protocol is the\r | |
99c048ef | 1187 | last protocol on ChildHandle, then ChildHandle is destroyed.\r |
1188 | \r | |
1189 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r | |
1190 | @param[in] ChildHandle Handle of the child to destroy\r | |
1191 | \r | |
81a46615 | 1192 | @retval EFI_SUCCESS The protocol was removed from ChildHandle.\r |
99c048ef | 1193 | @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.\r |
1194 | @retval EFI_INVALID_PARAMETER Child handle is NULL.\r | |
1195 | @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle\r | |
1196 | because its services are being used.\r | |
1197 | @retval other The child handle was not destroyed\r | |
1198 | \r | |
1199 | **/\r | |
1200 | EFI_STATUS\r | |
1201 | EFIAPI\r | |
1202 | Dns4ServiceBindingDestroyChild (\r | |
1203 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
1204 | IN EFI_HANDLE ChildHandle\r | |
1205 | )\r | |
1206 | {\r | |
d1050b9d MK |
1207 | DNS_SERVICE *DnsSb;\r |
1208 | DNS_INSTANCE *Instance;\r | |
99c048ef | 1209 | \r |
d1050b9d MK |
1210 | EFI_DNS4_PROTOCOL *Dns4;\r |
1211 | EFI_STATUS Status;\r | |
1212 | EFI_TPL OldTpl;\r | |
99c048ef | 1213 | \r |
1214 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
1215 | return EFI_INVALID_PARAMETER;\r | |
1216 | }\r | |
1217 | \r | |
1218 | //\r | |
1219 | // Retrieve the private context data structures\r | |
1220 | //\r | |
1221 | Status = gBS->OpenProtocol (\r | |
1222 | ChildHandle,\r | |
1223 | &gEfiDns4ProtocolGuid,\r | |
d1050b9d | 1224 | (VOID **)&Dns4,\r |
99c048ef | 1225 | gDns4DriverBinding.DriverBindingHandle,\r |
1226 | ChildHandle,\r | |
1227 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1228 | );\r | |
1229 | \r | |
1230 | if (EFI_ERROR (Status)) {\r | |
1231 | return EFI_UNSUPPORTED;\r | |
1232 | }\r | |
1233 | \r | |
d1050b9d MK |
1234 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (Dns4);\r |
1235 | DnsSb = DNS_SERVICE_FROM_THIS (This);\r | |
99c048ef | 1236 | \r |
1237 | if (Instance->Service != DnsSb) {\r | |
1238 | return EFI_INVALID_PARAMETER;\r | |
1239 | }\r | |
1240 | \r | |
1241 | if (Instance->InDestroy) {\r | |
1242 | return EFI_SUCCESS;\r | |
1243 | }\r | |
1244 | \r | |
1245 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
f75a7f56 | 1246 | \r |
99c048ef | 1247 | Instance->InDestroy = TRUE;\r |
1248 | \r | |
1249 | //\r | |
1250 | // Close the Udp4 protocol.\r | |
1251 | //\r | |
1252 | gBS->CloseProtocol (\r | |
1253 | DnsSb->ConnectUdp->UdpHandle,\r | |
1254 | &gEfiUdp4ProtocolGuid,\r | |
1255 | gDns4DriverBinding.DriverBindingHandle,\r | |
1256 | ChildHandle\r | |
1257 | );\r | |
1258 | \r | |
1259 | gBS->CloseProtocol (\r | |
1260 | Instance->UdpIo->UdpHandle,\r | |
1261 | &gEfiUdp4ProtocolGuid,\r | |
1262 | gDns4DriverBinding.DriverBindingHandle,\r | |
1263 | ChildHandle\r | |
1264 | );\r | |
1265 | \r | |
1266 | gBS->RestoreTPL (OldTpl);\r | |
1267 | \r | |
1268 | //\r | |
1269 | // Uninstall the DNS protocol first to enable a top down destruction.\r | |
1270 | //\r | |
1271 | Status = gBS->UninstallProtocolInterface (\r | |
1272 | ChildHandle,\r | |
1273 | &gEfiDns4ProtocolGuid,\r | |
1274 | Dns4\r | |
1275 | );\r | |
1276 | \r | |
1277 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
f75a7f56 | 1278 | \r |
99c048ef | 1279 | if (EFI_ERROR (Status)) {\r |
1280 | Instance->InDestroy = FALSE;\r | |
1281 | gBS->RestoreTPL (OldTpl);\r | |
1282 | return Status;\r | |
1283 | }\r | |
1284 | \r | |
1285 | RemoveEntryList (&Instance->Link);\r | |
1286 | DnsSb->Dns4ChildrenNum--;\r | |
1287 | \r | |
1288 | gBS->RestoreTPL (OldTpl);\r | |
1289 | \r | |
1290 | DnsDestroyInstance (Instance);\r | |
1291 | return EFI_SUCCESS;\r | |
1292 | }\r | |
1293 | \r | |
1294 | /**\r | |
1295 | Creates a child handle and installs a protocol.\r | |
f75a7f56 LG |
1296 | \r |
1297 | The CreateChild() function installs a protocol on ChildHandle.\r | |
1298 | If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.\r | |
99c048ef | 1299 | If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.\r |
1300 | \r | |
1301 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r | |
1302 | @param[in] ChildHandle Pointer to the handle of the child to create. If it is NULL,\r | |
f75a7f56 | 1303 | then a new handle is created. If it is a pointer to an existing UEFI handle,\r |
99c048ef | 1304 | then the protocol is added to the existing UEFI handle.\r |
1305 | \r | |
81a46615 | 1306 | @retval EFI_SUCCESS The protocol was added to ChildHandle.\r |
99c048ef | 1307 | @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r |
c2adf51f | 1308 | @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create\r |
99c048ef | 1309 | the child\r |
1310 | @retval other The child handle was not created\r | |
1311 | \r | |
1312 | **/\r | |
1313 | EFI_STATUS\r | |
1314 | EFIAPI\r | |
1315 | Dns6ServiceBindingCreateChild (\r | |
1316 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
1317 | IN EFI_HANDLE *ChildHandle\r | |
1318 | )\r | |
1319 | {\r | |
d1050b9d MK |
1320 | DNS_SERVICE *DnsSb;\r |
1321 | DNS_INSTANCE *Instance;\r | |
1322 | EFI_STATUS Status;\r | |
1323 | EFI_TPL OldTpl;\r | |
1324 | VOID *Udp6;\r | |
99c048ef | 1325 | \r |
1326 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
1327 | return EFI_INVALID_PARAMETER;\r | |
1328 | }\r | |
1329 | \r | |
1330 | DnsSb = DNS_SERVICE_FROM_THIS (This);\r | |
1331 | \r | |
1332 | Status = DnsCreateInstance (DnsSb, &Instance);\r | |
1333 | if (EFI_ERROR (Status)) {\r | |
1334 | return Status;\r | |
1335 | }\r | |
d1050b9d | 1336 | \r |
99c048ef | 1337 | ASSERT (Instance != NULL);\r |
1338 | \r | |
1339 | //\r | |
1340 | // Install the DNS protocol onto ChildHandle\r | |
1341 | //\r | |
1342 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1343 | ChildHandle,\r | |
1344 | &gEfiDns6ProtocolGuid,\r | |
1345 | &Instance->Dns6,\r | |
1346 | NULL\r | |
1347 | );\r | |
1348 | if (EFI_ERROR (Status)) {\r | |
1349 | goto ON_ERROR;\r | |
1350 | }\r | |
1351 | \r | |
1352 | Instance->ChildHandle = *ChildHandle;\r | |
1353 | \r | |
1354 | //\r | |
1355 | // Open the Udp6 protocol BY_CHILD.\r | |
1356 | //\r | |
1357 | Status = gBS->OpenProtocol (\r | |
1358 | DnsSb->ConnectUdp->UdpHandle,\r | |
1359 | &gEfiUdp6ProtocolGuid,\r | |
d1050b9d | 1360 | (VOID **)&Udp6,\r |
99c048ef | 1361 | gDns6DriverBinding.DriverBindingHandle,\r |
1362 | Instance->ChildHandle,\r | |
1363 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
1364 | );\r | |
1365 | if (EFI_ERROR (Status)) {\r | |
1366 | gBS->UninstallMultipleProtocolInterfaces (\r | |
1367 | Instance->ChildHandle,\r | |
1368 | &gEfiDns6ProtocolGuid,\r | |
1369 | &Instance->Dns6,\r | |
1370 | NULL\r | |
1371 | );\r | |
f75a7f56 | 1372 | \r |
99c048ef | 1373 | goto ON_ERROR;\r |
1374 | }\r | |
1375 | \r | |
1376 | //\r | |
1377 | // Open the Udp6 protocol by child.\r | |
1378 | //\r | |
1379 | Status = gBS->OpenProtocol (\r | |
1380 | Instance->UdpIo->UdpHandle,\r | |
1381 | &gEfiUdp6ProtocolGuid,\r | |
d1050b9d | 1382 | (VOID **)&Udp6,\r |
99c048ef | 1383 | gDns6DriverBinding.DriverBindingHandle,\r |
1384 | Instance->ChildHandle,\r | |
1385 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
1386 | );\r | |
1387 | if (EFI_ERROR (Status)) {\r | |
1388 | //\r | |
1389 | // Close the Udp6 protocol.\r | |
1390 | //\r | |
1391 | gBS->CloseProtocol (\r | |
1392 | DnsSb->ConnectUdp->UdpHandle,\r | |
1393 | &gEfiUdp6ProtocolGuid,\r | |
1394 | gDns6DriverBinding.DriverBindingHandle,\r | |
bf7249df | 1395 | *ChildHandle\r |
99c048ef | 1396 | );\r |
f75a7f56 | 1397 | \r |
d1050b9d MK |
1398 | gBS->UninstallMultipleProtocolInterfaces (\r |
1399 | Instance->ChildHandle,\r | |
1400 | &gEfiDns6ProtocolGuid,\r | |
1401 | &Instance->Dns6,\r | |
1402 | NULL\r | |
1403 | );\r | |
f75a7f56 | 1404 | \r |
99c048ef | 1405 | goto ON_ERROR;\r |
1406 | }\r | |
1407 | \r | |
1408 | //\r | |
1409 | // Add it to the parent's child list.\r | |
1410 | //\r | |
1411 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1412 | \r | |
1413 | InsertTailList (&DnsSb->Dns6ChildrenList, &Instance->Link);\r | |
1414 | DnsSb->Dns6ChildrenNum++;\r | |
1415 | \r | |
1416 | gBS->RestoreTPL (OldTpl);\r | |
1417 | \r | |
1418 | return EFI_SUCCESS;\r | |
1419 | \r | |
1420 | ON_ERROR:\r | |
1421 | \r | |
1422 | DnsDestroyInstance (Instance);\r | |
1423 | return Status;\r | |
1424 | }\r | |
1425 | \r | |
1426 | /**\r | |
1427 | Destroys a child handle with a protocol installed on it.\r | |
f75a7f56 LG |
1428 | \r |
1429 | The DestroyChild() function does the opposite of CreateChild(). It removes a protocol\r | |
1430 | that was installed by CreateChild() from ChildHandle. If the removed protocol is the\r | |
99c048ef | 1431 | last protocol on ChildHandle, then ChildHandle is destroyed.\r |
1432 | \r | |
1433 | @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r | |
1434 | @param[in] ChildHandle Handle of the child to destroy\r | |
1435 | \r | |
81a46615 | 1436 | @retval EFI_SUCCESS The protocol was removed from ChildHandle.\r |
99c048ef | 1437 | @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.\r |
1438 | @retval EFI_INVALID_PARAMETER Child handle is NULL.\r | |
1439 | @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle\r | |
1440 | because its services are being used.\r | |
1441 | @retval other The child handle was not destroyed\r | |
1442 | \r | |
1443 | **/\r | |
1444 | EFI_STATUS\r | |
1445 | EFIAPI\r | |
1446 | Dns6ServiceBindingDestroyChild (\r | |
1447 | IN EFI_SERVICE_BINDING_PROTOCOL *This,\r | |
1448 | IN EFI_HANDLE ChildHandle\r | |
1449 | )\r | |
1450 | {\r | |
d1050b9d MK |
1451 | DNS_SERVICE *DnsSb;\r |
1452 | DNS_INSTANCE *Instance;\r | |
99c048ef | 1453 | \r |
d1050b9d MK |
1454 | EFI_DNS6_PROTOCOL *Dns6;\r |
1455 | EFI_STATUS Status;\r | |
1456 | EFI_TPL OldTpl;\r | |
99c048ef | 1457 | \r |
1458 | if ((This == NULL) || (ChildHandle == NULL)) {\r | |
1459 | return EFI_INVALID_PARAMETER;\r | |
1460 | }\r | |
1461 | \r | |
1462 | //\r | |
1463 | // Retrieve the private context data structures\r | |
1464 | //\r | |
1465 | Status = gBS->OpenProtocol (\r | |
1466 | ChildHandle,\r | |
1467 | &gEfiDns6ProtocolGuid,\r | |
d1050b9d | 1468 | (VOID **)&Dns6,\r |
99c048ef | 1469 | gDns6DriverBinding.DriverBindingHandle,\r |
1470 | ChildHandle,\r | |
1471 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1472 | );\r | |
1473 | \r | |
1474 | if (EFI_ERROR (Status)) {\r | |
1475 | return EFI_UNSUPPORTED;\r | |
1476 | }\r | |
1477 | \r | |
d1050b9d MK |
1478 | Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (Dns6);\r |
1479 | DnsSb = DNS_SERVICE_FROM_THIS (This);\r | |
99c048ef | 1480 | \r |
1481 | if (Instance->Service != DnsSb) {\r | |
1482 | return EFI_INVALID_PARAMETER;\r | |
1483 | }\r | |
1484 | \r | |
1485 | if (Instance->InDestroy) {\r | |
1486 | return EFI_SUCCESS;\r | |
1487 | }\r | |
1488 | \r | |
1489 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1490 | \r | |
1491 | Instance->InDestroy = TRUE;\r | |
1492 | \r | |
1493 | //\r | |
1494 | // Close the Udp6 protocol.\r | |
1495 | //\r | |
1496 | gBS->CloseProtocol (\r | |
1497 | DnsSb->ConnectUdp->UdpHandle,\r | |
1498 | &gEfiUdp6ProtocolGuid,\r | |
1499 | gDns6DriverBinding.DriverBindingHandle,\r | |
1500 | ChildHandle\r | |
1501 | );\r | |
1502 | \r | |
1503 | gBS->CloseProtocol (\r | |
1504 | Instance->UdpIo->UdpHandle,\r | |
1505 | &gEfiUdp6ProtocolGuid,\r | |
1506 | gDns6DriverBinding.DriverBindingHandle,\r | |
1507 | ChildHandle\r | |
1508 | );\r | |
1509 | \r | |
1510 | gBS->RestoreTPL (OldTpl);\r | |
1511 | \r | |
1512 | //\r | |
1513 | // Uninstall the DNS protocol first to enable a top down destruction.\r | |
1514 | //\r | |
1515 | Status = gBS->UninstallProtocolInterface (\r | |
1516 | ChildHandle,\r | |
1517 | &gEfiDns6ProtocolGuid,\r | |
1518 | Dns6\r | |
1519 | );\r | |
1520 | \r | |
1521 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
1522 | \r | |
1523 | if (EFI_ERROR (Status)) {\r | |
1524 | Instance->InDestroy = FALSE;\r | |
1525 | gBS->RestoreTPL (OldTpl);\r | |
1526 | return Status;\r | |
1527 | }\r | |
1528 | \r | |
1529 | RemoveEntryList (&Instance->Link);\r | |
1530 | DnsSb->Dns6ChildrenNum--;\r | |
1531 | \r | |
1532 | gBS->RestoreTPL (OldTpl);\r | |
1533 | \r | |
1534 | DnsDestroyInstance (Instance);\r | |
1535 | return EFI_SUCCESS;\r | |
1536 | }\r |