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12618416 | 1 | /** @file\r |
fd82de4e | 2 | The entry point of IScsi driver.\r |
6a690e23 | 3 | \r |
fd627b16 | 4 | Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 5 | This program and the accompanying materials\r |
7a444476 | 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 | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
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 | |
6a690e23 | 12 | \r |
12618416 | 13 | **/\r |
6a690e23 | 14 | \r |
15 | #include "IScsiImpl.h"\r | |
16 | \r | |
17 | EFI_DRIVER_BINDING_PROTOCOL gIScsiDriverBinding = {\r | |
18 | IScsiDriverBindingSupported,\r | |
19 | IScsiDriverBindingStart,\r | |
20 | IScsiDriverBindingStop,\r | |
21 | 0xa,\r | |
22 | NULL,\r | |
23 | NULL\r | |
24 | };\r | |
25 | \r | |
5af5b3fd | 26 | EFI_GUID gIScsiPrivateGuid = ISCSI_PRIVATE_GUID;\r |
6a690e23 | 27 | \r |
6a690e23 | 28 | \r |
fd82de4e | 29 | /**\r |
30 | Tests to see if this driver supports a given controller. If a child device is provided, \r | |
31 | it further tests to see if this driver supports creating a handle for the specified child device.\r | |
32 | \r | |
33 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
34 | @param[in] ControllerHandle The handle of the controller to test. This handle \r | |
35 | must support a protocol interface that supplies \r | |
36 | an I/O abstraction to the driver.\r | |
37 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. \r | |
38 | This parameter is ignored by device drivers, and is optional for bus drivers.\r | |
39 | \r | |
40 | \r | |
41 | @retval EFI_SUCCESS The device specified by ControllerHandle and\r | |
42 | RemainingDevicePath is supported by the driver specified by This.\r | |
43 | @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r | |
44 | RemainingDevicePath is already being managed by the driver\r | |
45 | specified by This.\r | |
46 | @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r | |
47 | RemainingDevicePath is already being managed by a different\r | |
48 | driver or an application that requires exclusive acces.\r | |
49 | Currently not implemented.\r | |
50 | @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r | |
51 | RemainingDevicePath is not supported by the driver specified by This.\r | |
12618416 | 52 | **/\r |
53 | EFI_STATUS\r | |
54 | EFIAPI\r | |
55 | IScsiDriverBindingSupported (\r | |
fd82de4e | 56 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
12618416 | 57 | IN EFI_HANDLE ControllerHandle,\r |
fd82de4e | 58 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
12618416 | 59 | )\r |
6a690e23 | 60 | {\r |
61 | EFI_STATUS Status;\r | |
62 | EFI_DEVICE_PATH_PROTOCOL *CurrentDevicePath;\r | |
63 | \r | |
64 | Status = gBS->OpenProtocol (\r | |
65 | ControllerHandle,\r | |
5af5b3fd | 66 | &gIScsiPrivateGuid,\r |
6a690e23 | 67 | NULL,\r |
68 | This->DriverBindingHandle,\r | |
69 | ControllerHandle,\r | |
70 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
71 | );\r | |
72 | if (!EFI_ERROR (Status)) {\r | |
73 | return EFI_ALREADY_STARTED;\r | |
74 | }\r | |
75 | \r | |
76 | Status = gBS->OpenProtocol (\r | |
77 | ControllerHandle,\r | |
78 | &gEfiTcp4ServiceBindingProtocolGuid,\r | |
79 | NULL,\r | |
80 | This->DriverBindingHandle,\r | |
81 | ControllerHandle,\r | |
82 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
83 | );\r | |
84 | if (EFI_ERROR (Status)) {\r | |
85 | return EFI_UNSUPPORTED;\r | |
86 | }\r | |
87 | \r | |
88 | CurrentDevicePath = RemainingDevicePath;\r | |
89 | if (CurrentDevicePath != NULL) {\r | |
90 | while (!IsDevicePathEnd (CurrentDevicePath)) {\r | |
91 | if ((CurrentDevicePath->Type == MESSAGING_DEVICE_PATH) && (CurrentDevicePath->SubType == MSG_ISCSI_DP)) {\r | |
92 | return EFI_SUCCESS;\r | |
93 | }\r | |
94 | \r | |
95 | CurrentDevicePath = NextDevicePathNode (CurrentDevicePath);\r | |
96 | }\r | |
97 | \r | |
98 | return EFI_UNSUPPORTED;\r | |
99 | }\r | |
100 | \r | |
101 | return EFI_SUCCESS;\r | |
102 | }\r | |
103 | \r | |
12618416 | 104 | /**\r |
55a64ae0 | 105 | Start this driver on ControllerHandle. \r |
106 | \r | |
107 | The Start() function is designed to be invoked from the EFI boot service ConnectController(). \r | |
108 | As a result, much of the error checking on the parameters to Start() has been moved into this \r | |
109 | common boot service. It is legal to call Start() from other locations, but the following calling \r | |
110 | restrictions must be followed or the system behavior will not be deterministic.\r | |
fd82de4e | 111 | 1. ControllerHandle must be a valid EFI_HANDLE.\r |
112 | 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r | |
113 | EFI_DEVICE_PATH_PROTOCOL.\r | |
114 | 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r | |
115 | have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. \r | |
116 | \r | |
117 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
118 | @param[in] ControllerHandle The handle of the controller to start. This handle \r | |
119 | must support a protocol interface that supplies \r | |
120 | an I/O abstraction to the driver.\r | |
121 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. \r | |
122 | This parameter is ignored by device drivers, and is optional for bus drivers.\r | |
123 | \r | |
124 | @retval EFI_SUCCESS The device was started.\r | |
125 | @retval EFI_DEVICE_ERROR The device could not be started due to a device error.\r | |
126 | Currently not implemented.\r | |
127 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
128 | @retval Others The driver failded to start the device.\r | |
12618416 | 129 | **/\r |
6a690e23 | 130 | EFI_STATUS\r |
131 | EFIAPI\r | |
132 | IScsiDriverBindingStart (\r | |
fd82de4e | 133 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
6a690e23 | 134 | IN EFI_HANDLE ControllerHandle,\r |
fd82de4e | 135 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r |
6a690e23 | 136 | )\r |
6a690e23 | 137 | {\r |
138 | EFI_STATUS Status;\r | |
139 | ISCSI_DRIVER_DATA *Private;\r | |
fd627b16 | 140 | VOID *Interface;\r |
141 | \r | |
142 | Private = IScsiCreateDriverData (This->DriverBindingHandle, ControllerHandle);\r | |
143 | if (Private == NULL) {\r | |
144 | return EFI_OUT_OF_RESOURCES;\r | |
145 | }\r | |
146 | \r | |
147 | //\r | |
148 | // Create a underlayer child instance, but not need to configure it. Just open ChildHandle\r | |
149 | // via BY_DRIVER. That is, establishing the relationship between ControllerHandle and ChildHandle.\r | |
150 | // Therefore, when DisconnectController(), especially VLAN virtual controller handle,\r | |
151 | // IScsiDriverBindingStop() will be called.\r | |
152 | //\r | |
153 | Status = NetLibCreateServiceChild (\r | |
154 | ControllerHandle,\r | |
155 | This->DriverBindingHandle,\r | |
156 | &gEfiTcp4ServiceBindingProtocolGuid,\r | |
157 | &Private->ChildHandle\r | |
158 | );\r | |
159 | \r | |
160 | if (EFI_ERROR (Status)) {\r | |
161 | goto ON_ERROR;\r | |
162 | }\r | |
163 | \r | |
164 | Status = gBS->OpenProtocol (\r | |
165 | Private->ChildHandle,\r | |
166 | &gEfiTcp4ProtocolGuid,\r | |
167 | &Interface,\r | |
168 | This->DriverBindingHandle,\r | |
169 | ControllerHandle,\r | |
170 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
171 | );\r | |
172 | if (EFI_ERROR (Status)) {\r | |
173 | goto ON_ERROR;\r | |
174 | }\r | |
175 | \r | |
176 | // | |
177 | // Always install private protocol no matter what happens later. We need to \r | |
178 | // keep the relationship between ControllerHandle and ChildHandle.\r | |
179 | //\r | |
180 | Status = gBS->InstallProtocolInterface (\r | |
181 | &ControllerHandle,\r | |
182 | &gIScsiPrivateGuid,\r | |
183 | EFI_NATIVE_INTERFACE,\r | |
184 | &Private->IScsiIdentifier\r | |
185 | );\r | |
186 | if (EFI_ERROR (Status)) {\r | |
187 | goto ON_ERROR;\r | |
188 | }\r | |
6a690e23 | 189 | \r |
190 | //\r | |
191 | // Try to add a port configuration page for this controller.\r | |
192 | //\r | |
193 | IScsiConfigUpdateForm (This->DriverBindingHandle, ControllerHandle, TRUE);\r | |
194 | \r | |
6a690e23 | 195 | //\r |
196 | // Get the iSCSI configuration data of this controller.\r | |
197 | //\r | |
198 | Status = IScsiGetConfigData (Private);\r | |
199 | if (EFI_ERROR (Status)) {\r | |
200 | goto ON_ERROR;\r | |
201 | }\r | |
202 | //\r | |
203 | // Try to login and create an iSCSI session according to the configuration.\r | |
204 | //\r | |
205 | Status = IScsiSessionLogin (Private);\r | |
206 | if (Status == EFI_MEDIA_CHANGED) {\r | |
207 | //\r | |
208 | // The specified target is not available and the redirection information is\r | |
209 | // got, login the session again with the updated target address.\r | |
210 | //\r | |
211 | Status = IScsiSessionLogin (Private);\r | |
212 | }\r | |
213 | \r | |
214 | if (EFI_ERROR (Status)) {\r | |
215 | goto ON_ERROR;\r | |
216 | }\r | |
217 | //\r | |
218 | // Duplicate the Session's tcp connection device path. The source port field\r | |
219 | // will be set to zero as one iSCSI session is comprised of several iSCSI\r | |
220 | // connections.\r | |
221 | //\r | |
222 | Private->DevicePath = IScsiGetTcpConnDevicePath (Private);\r | |
223 | if (Private->DevicePath == NULL) {\r | |
224 | goto ON_ERROR;\r | |
225 | }\r | |
226 | //\r | |
227 | // Install the updated device path onto the ExtScsiPassThruHandle.\r | |
228 | //\r | |
229 | Status = gBS->InstallProtocolInterface (\r | |
230 | &Private->ExtScsiPassThruHandle,\r | |
231 | &gEfiDevicePathProtocolGuid,\r | |
232 | EFI_NATIVE_INTERFACE,\r | |
233 | Private->DevicePath\r | |
234 | );\r | |
235 | if (EFI_ERROR (Status)) {\r | |
236 | goto ON_ERROR;\r | |
237 | }\r | |
fd627b16 | 238 | \r |
6a690e23 | 239 | //\r |
240 | // Update/Publish the iSCSI Boot Firmware Table.\r | |
241 | //\r | |
242 | IScsiPublishIbft ();\r | |
243 | \r | |
244 | return EFI_SUCCESS;\r | |
245 | \r | |
246 | ON_ERROR:\r | |
247 | \r | |
248 | IScsiSessionAbort (&Private->Session);\r | |
6a690e23 | 249 | \r |
250 | return Status;\r | |
251 | }\r | |
252 | \r | |
12618416 | 253 | /**\r |
fd82de4e | 254 | Stop this driver on ControllerHandle. \r |
255 | \r | |
256 | Release the control of this controller and remove the IScsi functions. The Stop()\r | |
257 | function is designed to be invoked from the EFI boot service DisconnectController(). \r | |
258 | As a result, much of the error checking on the parameters to Stop() has been moved \r | |
259 | into this common boot service. It is legal to call Stop() from other locations, \r | |
260 | but the following calling restrictions must be followed or the system behavior will not be deterministic.\r | |
261 | 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r | |
262 | same driver's Start() function.\r | |
263 | 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r | |
264 | EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r | |
265 | Start() function, and the Start() function must have called OpenProtocol() on\r | |
266 | ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r | |
267 | \r | |
268 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
269 | @param[in] ControllerHandle A handle to the device being stopped. The handle must \r | |
270 | support a bus specific I/O protocol for the driver \r | |
271 | to use to stop the device.\r | |
272 | @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.Not used.\r | |
273 | @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL \r | |
274 | if NumberOfChildren is 0.Not used.\r | |
275 | \r | |
276 | @retval EFI_SUCCESS The device was stopped.\r | |
277 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r | |
12618416 | 278 | **/\r |
6a690e23 | 279 | EFI_STATUS\r |
280 | EFIAPI\r | |
281 | IScsiDriverBindingStop (\r | |
282 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
283 | IN EFI_HANDLE ControllerHandle,\r | |
284 | IN UINTN NumberOfChildren,\r | |
c5de0d55 | 285 | IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r |
6a690e23 | 286 | )\r |
6a690e23 | 287 | {\r |
288 | EFI_HANDLE IScsiController;\r | |
289 | EFI_STATUS Status;\r | |
290 | ISCSI_PRIVATE_PROTOCOL *IScsiIdentifier;\r | |
291 | ISCSI_DRIVER_DATA *Private;\r | |
292 | EFI_EXT_SCSI_PASS_THRU_PROTOCOL *PassThru;\r | |
293 | ISCSI_CONNECTION *Conn;\r | |
294 | \r | |
295 | if (NumberOfChildren != 0) {\r | |
296 | //\r | |
297 | // We should have only one child.\r | |
298 | //\r | |
299 | Status = gBS->OpenProtocol (\r | |
300 | ChildHandleBuffer[0],\r | |
301 | &gEfiExtScsiPassThruProtocolGuid,\r | |
302 | (VOID **) &PassThru,\r | |
303 | This->DriverBindingHandle,\r | |
304 | ControllerHandle,\r | |
305 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
306 | );\r | |
307 | if (EFI_ERROR (Status)) {\r | |
308 | return EFI_DEVICE_ERROR;\r | |
309 | }\r | |
310 | \r | |
311 | Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (PassThru);\r | |
312 | Conn = NET_LIST_HEAD (&Private->Session.Conns, ISCSI_CONNECTION, Link);\r | |
313 | \r | |
314 | //\r | |
315 | // Previously the TCP4 protocol is opened BY_CHILD_CONTROLLER. Just close\r | |
316 | // the protocol here but not uninstall the device path protocol and\r | |
317 | // EXT SCSI PASS THRU protocol installed on ExtScsiPassThruHandle.\r | |
318 | //\r | |
319 | gBS->CloseProtocol (\r | |
320 | Conn->Tcp4Io.Handle,\r | |
321 | &gEfiTcp4ProtocolGuid,\r | |
322 | Private->Image,\r | |
323 | Private->ExtScsiPassThruHandle\r | |
324 | );\r | |
325 | \r | |
326 | return EFI_SUCCESS;\r | |
327 | }\r | |
328 | //\r | |
329 | // Get the handle of the controller we are controling.\r | |
330 | //\r | |
331 | IScsiController = NetLibGetNicHandle (ControllerHandle, &gEfiTcp4ProtocolGuid);\r | |
332 | \r | |
333 | Status = gBS->OpenProtocol (\r | |
334 | IScsiController,\r | |
5af5b3fd | 335 | &gIScsiPrivateGuid,\r |
6a690e23 | 336 | (VOID **)&IScsiIdentifier,\r |
337 | This->DriverBindingHandle,\r | |
338 | ControllerHandle,\r | |
339 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
340 | );\r | |
341 | if (EFI_ERROR (Status)) {\r | |
342 | return EFI_DEVICE_ERROR;\r | |
343 | }\r | |
344 | \r | |
345 | Private = ISCSI_DRIVER_DATA_FROM_IDENTIFIER (IScsiIdentifier);\r | |
346 | \r | |
fd627b16 | 347 | if (Private->ChildHandle != NULL) {\r |
348 | Status = gBS->CloseProtocol (\r | |
349 | Private->ChildHandle,\r | |
350 | &gEfiTcp4ProtocolGuid,\r | |
351 | This->DriverBindingHandle,\r | |
352 | IScsiController\r | |
353 | );\r | |
354 | \r | |
355 | ASSERT (!EFI_ERROR (Status));\r | |
356 | \r | |
357 | Status = NetLibDestroyServiceChild (\r | |
358 | IScsiController,\r | |
359 | This->DriverBindingHandle,\r | |
360 | &gEfiTcp4ServiceBindingProtocolGuid,\r | |
361 | Private->ChildHandle\r | |
362 | );\r | |
363 | ASSERT (!EFI_ERROR (Status));\r | |
364 | }\r | |
365 | \r | |
366 | IScsiConfigUpdateForm (This->DriverBindingHandle, IScsiController, FALSE);\r | |
367 | \r | |
6a690e23 | 368 | //\r |
369 | // Uninstall the private protocol.\r | |
370 | //\r | |
371 | gBS->UninstallProtocolInterface (\r | |
372 | IScsiController,\r | |
5af5b3fd | 373 | &gIScsiPrivateGuid,\r |
6a690e23 | 374 | &Private->IScsiIdentifier\r |
375 | );\r | |
376 | \r | |
377 | //\r | |
378 | // Update the iSCSI Boot Firware Table.\r | |
379 | //\r | |
380 | IScsiPublishIbft ();\r | |
381 | \r | |
382 | IScsiSessionAbort (&Private->Session);\r | |
383 | IScsiCleanDriverData (Private);\r | |
384 | \r | |
385 | return EFI_SUCCESS;\r | |
386 | }\r | |
387 | \r | |
12618416 | 388 | /**\r |
fd82de4e | 389 | Unloads an image(the iSCSI driver).\r |
6a690e23 | 390 | \r |
fd82de4e | 391 | @param[in] ImageHandle Handle that identifies the image to be unloaded.\r |
6a690e23 | 392 | \r |
fd82de4e | 393 | @retval EFI_SUCCESS The image has been unloaded.\r |
963dbb30 | 394 | @retval Others Other errors as indicated.\r |
12618416 | 395 | **/\r |
396 | EFI_STATUS\r | |
397 | EFIAPI\r | |
398 | EfiIScsiUnload (\r | |
399 | IN EFI_HANDLE ImageHandle\r | |
400 | )\r | |
6a690e23 | 401 | {\r |
402 | EFI_STATUS Status;\r | |
403 | UINTN DeviceHandleCount;\r | |
404 | EFI_HANDLE *DeviceHandleBuffer;\r | |
405 | UINTN Index;\r | |
406 | \r | |
407 | //\r | |
408 | // Try to disonnect the driver from the devices it's controlling.\r | |
409 | //\r | |
410 | Status = gBS->LocateHandleBuffer (\r | |
411 | AllHandles,\r | |
412 | NULL,\r | |
413 | NULL,\r | |
414 | &DeviceHandleCount,\r | |
415 | &DeviceHandleBuffer\r | |
416 | );\r | |
417 | if (!EFI_ERROR (Status)) {\r | |
418 | for (Index = 0; Index < DeviceHandleCount; Index++) {\r | |
419 | Status = gBS->DisconnectController (\r | |
420 | DeviceHandleBuffer[Index],\r | |
421 | ImageHandle,\r | |
422 | NULL\r | |
423 | );\r | |
424 | }\r | |
425 | \r | |
426 | if (DeviceHandleBuffer != NULL) {\r | |
766c7483 | 427 | FreePool (DeviceHandleBuffer);\r |
6a690e23 | 428 | }\r |
429 | }\r | |
430 | //\r | |
431 | // Unload the iSCSI configuration form.\r | |
432 | //\r | |
433 | IScsiConfigFormUnload (gIScsiDriverBinding.DriverBindingHandle);\r | |
434 | \r | |
435 | //\r | |
436 | // Uninstall the protocols installed by iSCSI driver.\r | |
437 | //\r | |
438 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
439 | ImageHandle,\r | |
440 | &gEfiDriverBindingProtocolGuid,\r | |
441 | &gIScsiDriverBinding,\r | |
442 | &gEfiComponentName2ProtocolGuid,\r | |
443 | &gIScsiComponentName2,\r | |
444 | &gEfiComponentNameProtocolGuid,\r | |
445 | &gIScsiComponentName,\r | |
446 | &gEfiIScsiInitiatorNameProtocolGuid,\r | |
447 | &gIScsiInitiatorName,\r | |
448 | NULL\r | |
449 | );\r | |
450 | \r | |
451 | return Status;\r | |
452 | }\r | |
453 | \r | |
12618416 | 454 | /**\r |
fd82de4e | 455 | This is the declaration of an EFI image entry point. This entry point is\r |
456 | the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including\r | |
457 | both device drivers and bus drivers. It initialize the global variables and \r | |
458 | publish the driver binding protocol.\r | |
6a690e23 | 459 | \r |
fd82de4e | 460 | @param[in] ImageHandle The firmware allocated handle for the UEFI image.\r |
461 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
6a690e23 | 462 | \r |
fd82de4e | 463 | @retval EFI_SUCCESS The operation completed successfully.\r |
464 | @retval EFI_ACCESS_DENIED EFI_ISCSI_INITIATOR_NAME_PROTOCOL was installed unexpectedly.\r | |
963dbb30 | 465 | @retval Others Other errors as indicated.\r |
12618416 | 466 | **/\r |
467 | EFI_STATUS\r | |
468 | EFIAPI\r | |
469 | IScsiDriverEntryPoint (\r | |
470 | IN EFI_HANDLE ImageHandle,\r | |
471 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
472 | )\r | |
6a690e23 | 473 | {\r |
f2a94e25 | 474 | EFI_STATUS Status;\r |
475 | EFI_ISCSI_INITIATOR_NAME_PROTOCOL *IScsiInitiatorName;\r | |
476 | \r | |
477 | //\r | |
478 | // There should be only one EFI_ISCSI_INITIATOR_NAME_PROTOCOL.\r | |
479 | //\r | |
480 | Status = gBS->LocateProtocol (\r | |
481 | &gEfiIScsiInitiatorNameProtocolGuid,\r | |
482 | NULL,\r | |
b4df5011 | 483 | (VOID**) &IScsiInitiatorName\r |
f2a94e25 | 484 | );\r |
485 | \r | |
486 | if (!EFI_ERROR (Status)) {\r | |
487 | return EFI_ACCESS_DENIED;\r | |
488 | }\r | |
6a690e23 | 489 | \r |
490 | //\r | |
491 | // Initialize the EFI Driver Library\r | |
492 | //\r | |
493 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
494 | ImageHandle,\r | |
495 | SystemTable,\r | |
496 | &gIScsiDriverBinding,\r | |
497 | ImageHandle,\r | |
498 | &gIScsiComponentName,\r | |
499 | &gIScsiComponentName2\r | |
500 | );\r | |
6a690e23 | 501 | \r |
502 | if (!EFI_ERROR (Status)) {\r | |
f2a94e25 | 503 | //\r |
504 | // Install the iSCSI Initiator Name Protocol.\r | |
505 | //\r | |
6a690e23 | 506 | Status = gBS->InstallProtocolInterface (\r |
507 | &ImageHandle,\r | |
508 | &gEfiIScsiInitiatorNameProtocolGuid,\r | |
509 | EFI_NATIVE_INTERFACE,\r | |
510 | &gIScsiInitiatorName\r | |
511 | );\r | |
512 | if (EFI_ERROR (Status)) {\r | |
513 | gBS->UninstallMultipleProtocolInterfaces (\r | |
514 | ImageHandle,\r | |
515 | &gEfiDriverBindingProtocolGuid,\r | |
516 | &gIScsiDriverBinding,\r | |
517 | &gEfiComponentName2ProtocolGuid,\r | |
518 | &gIScsiComponentName2,\r | |
519 | &gEfiComponentNameProtocolGuid,\r | |
520 | &gIScsiComponentName,\r | |
521 | NULL\r | |
522 | );\r | |
f2a94e25 | 523 | return Status;\r |
524 | }\r | |
525 | \r | |
526 | //\r | |
527 | // Initialize the configuration form of iSCSI.\r | |
528 | //\r | |
963dbb30 | 529 | Status = IScsiConfigFormInit ();\r |
f2a94e25 | 530 | if (EFI_ERROR (Status)) {\r |
531 | gBS->UninstallMultipleProtocolInterfaces (\r | |
532 | ImageHandle,\r | |
533 | &gEfiDriverBindingProtocolGuid,\r | |
534 | &gIScsiDriverBinding,\r | |
535 | &gEfiComponentName2ProtocolGuid,\r | |
536 | &gIScsiComponentName2,\r | |
537 | &gEfiComponentNameProtocolGuid,\r | |
538 | &gIScsiComponentName,\r | |
539 | &gEfiIScsiInitiatorNameProtocolGuid,\r | |
540 | &gIScsiInitiatorName,\r | |
541 | NULL\r | |
542 | );\r | |
6a690e23 | 543 | }\r |
544 | }\r | |
6a690e23 | 545 | return Status;\r |
546 | }\r | |
547 | \r |