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a06875e1 ED |
1 | /** @file\r |
2 | Entrypoint of Opal UEFI Driver and contains all the logic to\r | |
3 | register for new Opal device instances.\r | |
4 | \r | |
5 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | // This UEFI driver consumes EFI_STORAGE_SECURITY_PROTOCOL instances and installs an\r | |
17 | // HII GUI to manage Opal features if the device is Opal capable\r | |
18 | // If the Opal device is being managed by the UEFI Driver, it shall provide a popup\r | |
19 | // window during boot requesting a user password\r | |
20 | \r | |
21 | #include "OpalDriver.h"\r | |
22 | #include "OpalDriverPrivate.h"\r | |
23 | #include "OpalHii.h"\r | |
24 | \r | |
25 | OPAL_DRIVER mOpalDriver;\r | |
26 | \r | |
a06875e1 ED |
27 | #define MAX_PASSWORD_SIZE 32\r |
28 | #define MAX_PASSWORD_TRY_COUNT 5\r | |
29 | \r | |
30 | //\r | |
31 | // Globals\r | |
32 | //\r | |
33 | EFI_DRIVER_BINDING_PROTOCOL gOpalDriverBinding = {\r | |
34 | OpalEfiDriverBindingSupported,\r | |
35 | OpalEfiDriverBindingStart,\r | |
36 | OpalEfiDriverBindingStop,\r | |
37 | 0x1b,\r | |
38 | NULL,\r | |
39 | NULL\r | |
40 | };\r | |
41 | \r | |
42 | \r | |
43 | /**\r | |
44 | Add new device to the global device list.\r | |
45 | \r | |
46 | @param Dev New create device.\r | |
47 | \r | |
48 | **/\r | |
49 | VOID\r | |
50 | AddDeviceToTail(\r | |
51 | IN OPAL_DRIVER_DEVICE *Dev\r | |
52 | )\r | |
53 | {\r | |
54 | OPAL_DRIVER_DEVICE *TmpDev;\r | |
55 | \r | |
56 | if (mOpalDriver.DeviceList == NULL) {\r | |
57 | mOpalDriver.DeviceList = Dev;\r | |
58 | } else {\r | |
59 | TmpDev = mOpalDriver.DeviceList;\r | |
60 | while (TmpDev->Next != NULL) {\r | |
61 | TmpDev = TmpDev->Next;\r | |
62 | }\r | |
63 | \r | |
64 | TmpDev->Next = Dev;\r | |
65 | }\r | |
66 | }\r | |
67 | \r | |
68 | /**\r | |
69 | Remove one device in the global device list.\r | |
70 | \r | |
71 | @param Dev The device need to be removed.\r | |
72 | \r | |
73 | **/\r | |
74 | VOID\r | |
75 | RemoveDevice (\r | |
76 | IN OPAL_DRIVER_DEVICE *Dev\r | |
77 | )\r | |
78 | {\r | |
79 | OPAL_DRIVER_DEVICE *TmpDev;\r | |
80 | \r | |
81 | if (mOpalDriver.DeviceList == NULL) {\r | |
82 | return;\r | |
83 | }\r | |
84 | \r | |
85 | if (mOpalDriver.DeviceList == Dev) {\r | |
86 | mOpalDriver.DeviceList = NULL;\r | |
87 | return;\r | |
88 | }\r | |
89 | \r | |
90 | TmpDev = mOpalDriver.DeviceList;\r | |
91 | while (TmpDev->Next != NULL) {\r | |
92 | if (TmpDev->Next == Dev) {\r | |
93 | TmpDev->Next = Dev->Next;\r | |
94 | break;\r | |
95 | }\r | |
96 | }\r | |
97 | }\r | |
98 | \r | |
99 | /**\r | |
100 | Get current device count.\r | |
101 | \r | |
102 | @retval return the current created device count.\r | |
103 | \r | |
104 | **/\r | |
105 | UINT8\r | |
106 | GetDeviceCount (\r | |
107 | VOID\r | |
108 | )\r | |
109 | {\r | |
110 | UINT8 Count;\r | |
111 | OPAL_DRIVER_DEVICE *TmpDev;\r | |
112 | \r | |
113 | Count = 0;\r | |
114 | TmpDev = mOpalDriver.DeviceList;\r | |
115 | \r | |
116 | while (TmpDev != NULL) {\r | |
117 | Count++;\r | |
118 | TmpDev = TmpDev->Next;\r | |
119 | }\r | |
120 | \r | |
121 | return Count;\r | |
122 | }\r | |
123 | \r | |
124 | /**\r | |
125 | Get password input from the popup windows, and unlock the device.\r | |
126 | \r | |
127 | @param[in] Dev The device which need to be unlock.\r | |
128 | @param[out] PressEsc Whether user escape function through Press ESC.\r | |
129 | \r | |
130 | @retval Password string if success. NULL if failed.\r | |
131 | \r | |
132 | **/\r | |
133 | CHAR8 *\r | |
134 | OpalDriverPopUpHddPassword (\r | |
135 | IN OPAL_DRIVER_DEVICE *Dev,\r | |
136 | OUT BOOLEAN *PressEsc\r | |
137 | )\r | |
138 | {\r | |
139 | EFI_INPUT_KEY InputKey;\r | |
140 | UINTN InputLength;\r | |
141 | CHAR16 Mask[MAX_PASSWORD_SIZE + 1];\r | |
142 | CHAR16 Unicode[MAX_PASSWORD_SIZE + 1];\r | |
143 | CHAR8 *Ascii;\r | |
144 | CHAR16 *PopUpString;\r | |
145 | UINTN StrLength;\r | |
146 | \r | |
147 | ZeroMem(Unicode, sizeof(Unicode));\r | |
148 | ZeroMem(Mask, sizeof(Mask));\r | |
149 | \r | |
150 | StrLength = StrLen(Dev->Name16);\r | |
151 | PopUpString = (CHAR16*) AllocateZeroPool ((8 + StrLength) * 2);\r | |
152 | *PressEsc = FALSE;\r | |
153 | \r | |
154 | if (Dev->Name16 == NULL) {\r | |
155 | UnicodeSPrint(PopUpString, StrLen(L"Unlock Disk") + 1, L"Unlock Disk");\r | |
156 | } else {\r | |
157 | UnicodeSPrint(PopUpString, StrLen(L"Unlock ") + StrLength + 1, L"Unlock %s", Dev->Name16);\r | |
158 | }\r | |
159 | \r | |
160 | gST->ConOut->ClearScreen(gST->ConOut);\r | |
161 | \r | |
162 | InputLength = 0;\r | |
163 | while (TRUE) {\r | |
164 | Mask[InputLength] = L'_';\r | |
165 | CreatePopUp(\r | |
166 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
167 | &InputKey,\r | |
168 | PopUpString,\r | |
169 | L"---------------------",\r | |
170 | Mask,\r | |
171 | NULL\r | |
172 | );\r | |
173 | \r | |
174 | //\r | |
175 | // Check key.\r | |
176 | //\r | |
177 | if (InputKey.ScanCode == SCAN_NULL) {\r | |
178 | //\r | |
179 | // password finished\r | |
180 | //\r | |
181 | if (InputKey.UnicodeChar == CHAR_CARRIAGE_RETURN) {\r | |
182 | //\r | |
183 | // Add the null terminator.\r | |
184 | //\r | |
185 | Unicode[InputLength] = 0;\r | |
186 | InputLength++;\r | |
187 | break;\r | |
188 | } else if ((InputKey.UnicodeChar == CHAR_NULL) ||\r | |
189 | (InputKey.UnicodeChar == CHAR_TAB) ||\r | |
190 | (InputKey.UnicodeChar == CHAR_LINEFEED)\r | |
191 | ) {\r | |
192 | continue;\r | |
193 | } else {\r | |
194 | //\r | |
195 | // delete last key entered\r | |
196 | //\r | |
197 | if (InputKey.UnicodeChar == CHAR_BACKSPACE) {\r | |
198 | if (InputLength > 0) {\r | |
199 | Unicode[InputLength] = 0;\r | |
200 | Mask[InputLength] = 0;\r | |
201 | InputLength--;\r | |
202 | }\r | |
203 | } else {\r | |
204 | //\r | |
205 | // add Next key entry\r | |
206 | //\r | |
207 | Unicode[InputLength] = InputKey.UnicodeChar;\r | |
208 | Mask[InputLength] = L'*';\r | |
209 | InputLength++;\r | |
210 | if (InputLength == MAX_PASSWORD_SIZE) {\r | |
211 | //\r | |
212 | // Add the null terminator.\r | |
213 | //\r | |
214 | Unicode[InputLength] = 0;\r | |
215 | Mask[InputLength] = 0;\r | |
216 | break;\r | |
217 | }\r | |
218 | }\r | |
219 | }\r | |
220 | }\r | |
221 | \r | |
222 | //\r | |
223 | // exit on ESC\r | |
224 | //\r | |
225 | if (InputKey.ScanCode == SCAN_ESC) {\r | |
226 | *PressEsc = TRUE;\r | |
227 | break;\r | |
228 | }\r | |
229 | }\r | |
230 | \r | |
231 | gST->ConOut->ClearScreen(gST->ConOut);\r | |
232 | \r | |
233 | if (InputLength == 0 || InputKey.ScanCode == SCAN_ESC) {\r | |
234 | return NULL;\r | |
235 | }\r | |
236 | \r | |
237 | Ascii = AllocateZeroPool (MAX_PASSWORD_SIZE + 1);\r | |
238 | if (Ascii == NULL) {\r | |
239 | return NULL;\r | |
240 | }\r | |
241 | \r | |
b7c71793 | 242 | UnicodeStrToAsciiStrS (Unicode, Ascii, MAX_PASSWORD_SIZE + 1);\r |
a06875e1 ED |
243 | \r |
244 | return Ascii;\r | |
245 | }\r | |
246 | \r | |
247 | /**\r | |
248 | Check if disk is locked, show popup window and ask for password if it is\r | |
249 | \r | |
250 | @param[in] Dev The device which need to be unlock.\r | |
251 | \r | |
252 | **/\r | |
253 | VOID\r | |
254 | OpalDriverRequestPassword (\r | |
255 | OPAL_DRIVER_DEVICE *Dev\r | |
256 | )\r | |
257 | {\r | |
258 | UINT8 Count;\r | |
259 | BOOLEAN IsEnabled;\r | |
260 | CHAR8 *Password;\r | |
261 | UINT32 PasswordLen;\r | |
262 | TCG_RESULT Ret;\r | |
263 | EFI_INPUT_KEY Key;\r | |
264 | OPAL_SESSION Session;\r | |
265 | BOOLEAN PressEsc;\r | |
72a05f84 | 266 | BOOLEAN Locked;\r |
a06875e1 ED |
267 | \r |
268 | if (Dev == NULL) {\r | |
269 | return;\r | |
270 | }\r | |
271 | \r | |
272 | Count = 0;\r | |
273 | \r | |
274 | IsEnabled = OpalFeatureEnabled (&Dev->OpalDisk.SupportedAttributes, &Dev->OpalDisk.LockingFeature);\r | |
275 | if (IsEnabled) {\r | |
276 | ZeroMem(&Session, sizeof(Session));\r | |
277 | Session.Sscp = Dev->OpalDisk.Sscp;\r | |
278 | Session.MediaId = Dev->OpalDisk.MediaId;\r | |
279 | Session.OpalBaseComId = Dev->OpalDisk.OpalBaseComId;\r | |
280 | \r | |
72a05f84 ED |
281 | Locked = OpalDeviceLocked (&Dev->OpalDisk.SupportedAttributes, &Dev->OpalDisk.LockingFeature);\r |
282 | \r | |
a06875e1 ED |
283 | while (Count < MAX_PASSWORD_TRY_COUNT) {\r |
284 | Password = OpalDriverPopUpHddPassword (Dev, &PressEsc);\r | |
285 | if (PressEsc) {\r | |
72a05f84 | 286 | if (Locked) {\r |
a06875e1 | 287 | //\r |
72a05f84 ED |
288 | // Current device in the lock status and\r |
289 | // User not input password and press ESC,\r | |
290 | // keep device in lock status and continue boot.\r | |
a06875e1 | 291 | //\r |
72a05f84 ED |
292 | do {\r |
293 | CreatePopUp (\r | |
294 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
295 | &Key,\r | |
296 | L"Press ENTER to skip password, Press ESC to input password",\r | |
297 | NULL\r | |
298 | );\r | |
299 | } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));\r | |
300 | \r | |
301 | if (Key.UnicodeChar == CHAR_CARRIAGE_RETURN) {\r | |
302 | gST->ConOut->ClearScreen(gST->ConOut);\r | |
303 | //\r | |
304 | // Keep lock and continue boot.\r | |
305 | //\r | |
306 | return;\r | |
307 | } else {\r | |
308 | //\r | |
309 | // Let user input password again.\r | |
310 | //\r | |
311 | continue;\r | |
312 | }\r | |
a06875e1 ED |
313 | } else {\r |
314 | //\r | |
72a05f84 ED |
315 | // Current device in the unlock status and\r |
316 | // User not input password and press ESC,\r | |
317 | // Shutdown the device.\r | |
a06875e1 | 318 | //\r |
72a05f84 ED |
319 | do {\r |
320 | CreatePopUp (\r | |
321 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
322 | &Key,\r | |
323 | L"Press ENTER to shutdown, Press ESC to input password",\r | |
324 | NULL\r | |
325 | );\r | |
326 | } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));\r | |
327 | \r | |
328 | if (Key.UnicodeChar == CHAR_CARRIAGE_RETURN) {\r | |
329 | gRT->ResetSystem (EfiResetShutdown, EFI_SUCCESS, 0, NULL);\r | |
330 | } else {\r | |
331 | //\r | |
332 | // Let user input password again.\r | |
333 | //\r | |
334 | continue;\r | |
335 | }\r | |
a06875e1 ED |
336 | }\r |
337 | }\r | |
338 | \r | |
339 | if (Password == NULL) {\r | |
340 | Count ++;\r | |
341 | continue;\r | |
342 | }\r | |
343 | PasswordLen = (UINT32) AsciiStrLen(Password);\r | |
344 | \r | |
72a05f84 | 345 | if (Locked) {\r |
a06875e1 ED |
346 | Ret = OpalSupportUnlock(&Session, Password, PasswordLen, Dev->OpalDevicePath);\r |
347 | } else {\r | |
348 | Ret = OpalSupportLock(&Session, Password, PasswordLen, Dev->OpalDevicePath);\r | |
349 | if (Ret == TcgResultSuccess) {\r | |
350 | Ret = OpalSupportUnlock(&Session, Password, PasswordLen, Dev->OpalDevicePath);\r | |
351 | }\r | |
352 | }\r | |
353 | \r | |
354 | if (Password != NULL) {\r | |
355 | ZeroMem (Password, PasswordLen);\r | |
356 | FreePool (Password);\r | |
357 | }\r | |
358 | \r | |
359 | if (Ret == TcgResultSuccess) {\r | |
360 | break;\r | |
361 | }\r | |
362 | \r | |
363 | Count++;\r | |
364 | \r | |
365 | do {\r | |
366 | CreatePopUp (\r | |
367 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
368 | &Key,\r | |
369 | L"Invalid password.",\r | |
370 | L"Press ENTER to retry",\r | |
371 | NULL\r | |
372 | );\r | |
373 | } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);\r | |
374 | }\r | |
375 | \r | |
376 | if (Count >= MAX_PASSWORD_TRY_COUNT) {\r | |
377 | do {\r | |
378 | CreatePopUp (\r | |
379 | EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,\r | |
380 | &Key,\r | |
72a05f84 ED |
381 | L"Opal password retry count exceeds the limit. Must shutdown!",\r |
382 | L"Press ENTER to shutdown",\r | |
a06875e1 ED |
383 | NULL\r |
384 | );\r | |
385 | } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);\r | |
72a05f84 ED |
386 | \r |
387 | gRT->ResetSystem (EfiResetShutdown, EFI_SUCCESS, 0, NULL);\r | |
a06875e1 ED |
388 | }\r |
389 | }\r | |
390 | }\r | |
391 | \r | |
392 | /**\r | |
393 | Get devcie list info.\r | |
394 | \r | |
395 | @retval return the device list pointer.\r | |
396 | **/\r | |
397 | OPAL_DRIVER_DEVICE*\r | |
398 | OpalDriverGetDeviceList(\r | |
399 | VOID\r | |
400 | )\r | |
401 | {\r | |
402 | return mOpalDriver.DeviceList;\r | |
403 | }\r | |
404 | \r | |
405 | /**\r | |
406 | ReadyToBoot callback to send BlockSid command.\r | |
407 | \r | |
408 | @param Event Pointer to this event\r | |
0ab475c9 | 409 | @param Context Event handler private Data\r |
a06875e1 ED |
410 | \r |
411 | **/\r | |
412 | VOID\r | |
413 | EFIAPI\r | |
414 | ReadyToBootCallback (\r | |
415 | IN EFI_EVENT Event,\r | |
416 | IN VOID *Context\r | |
417 | )\r | |
418 | {\r | |
419 | EFI_STATUS Status;\r | |
420 | OPAL_DRIVER_DEVICE* Itr;\r | |
a06875e1 ED |
421 | TCG_RESULT Result;\r |
422 | OPAL_EXTRA_INFO_VAR OpalExtraInfo;\r | |
423 | UINTN DataSize;\r | |
424 | OPAL_SESSION Session;\r | |
425 | \r | |
a06875e1 ED |
426 | gBS->CloseEvent (Event);\r |
427 | \r | |
428 | DataSize = sizeof (OPAL_EXTRA_INFO_VAR);\r | |
429 | Status = gRT->GetVariable (\r | |
430 | OPAL_EXTRA_INFO_VAR_NAME,\r | |
431 | &gOpalExtraInfoVariableGuid,\r | |
432 | NULL,\r | |
433 | &DataSize,\r | |
434 | &OpalExtraInfo\r | |
435 | );\r | |
436 | if (EFI_ERROR (Status)) {\r | |
437 | return;\r | |
438 | }\r | |
439 | \r | |
440 | if (OpalExtraInfo.EnableBlockSid == TRUE) {\r | |
441 | //\r | |
442 | // Send BlockSID command to each Opal disk\r | |
443 | //\r | |
444 | Itr = mOpalDriver.DeviceList;\r | |
a06875e1 | 445 | while (Itr != NULL) {\r |
be087553 ED |
446 | if (Itr->OpalDisk.SupportedAttributes.BlockSid) {\r |
447 | ZeroMem(&Session, sizeof(Session));\r | |
448 | Session.Sscp = Itr->OpalDisk.Sscp;\r | |
449 | Session.MediaId = Itr->OpalDisk.MediaId;\r | |
450 | Session.OpalBaseComId = Itr->OpalDisk.OpalBaseComId;\r | |
451 | \r | |
452 | Result = OpalBlockSid (&Session, TRUE); // HardwareReset must always be TRUE\r | |
453 | if (Result != TcgResultSuccess) {\r | |
454 | DEBUG ((DEBUG_ERROR, "OpalBlockSid fail\n"));\r | |
455 | break;\r | |
456 | }\r | |
a06875e1 ED |
457 | }\r |
458 | \r | |
459 | Itr = Itr->Next;\r | |
a06875e1 ED |
460 | }\r |
461 | }\r | |
462 | }\r | |
463 | \r | |
464 | /**\r | |
465 | Stop this Controller.\r | |
466 | \r | |
467 | @param Dev The device need to be stopped.\r | |
468 | \r | |
469 | **/\r | |
470 | VOID\r | |
471 | OpalDriverStopDevice (\r | |
472 | OPAL_DRIVER_DEVICE *Dev\r | |
473 | )\r | |
474 | {\r | |
475 | //\r | |
476 | // free each name\r | |
477 | //\r | |
478 | FreePool(Dev->Name16);\r | |
479 | \r | |
480 | //\r | |
481 | // remove OPAL_DRIVER_DEVICE from the list\r | |
482 | // it updates the controllerList pointer\r | |
483 | //\r | |
484 | RemoveDevice(Dev);\r | |
485 | \r | |
486 | //\r | |
487 | // close protocols that were opened\r | |
488 | //\r | |
489 | gBS->CloseProtocol(\r | |
490 | Dev->Handle,\r | |
491 | &gEfiStorageSecurityCommandProtocolGuid,\r | |
492 | gOpalDriverBinding.DriverBindingHandle,\r | |
493 | Dev->Handle\r | |
494 | );\r | |
495 | \r | |
496 | gBS->CloseProtocol(\r | |
497 | Dev->Handle,\r | |
498 | &gEfiBlockIoProtocolGuid,\r | |
499 | gOpalDriverBinding.DriverBindingHandle,\r | |
500 | Dev->Handle\r | |
501 | );\r | |
502 | \r | |
503 | FreePool(Dev);\r | |
504 | }\r | |
505 | \r | |
506 | /**\r | |
507 | Get devcie name through the component name protocol.\r | |
508 | \r | |
509 | @param[in] AllHandlesBuffer The handle buffer for current system.\r | |
510 | @param[in] NumAllHandles The number of handles for the handle buffer.\r | |
511 | @param[in] Dev The device which need to get name.\r | |
512 | @param[in] UseComp1 Whether use component name or name2 protocol.\r | |
513 | \r | |
514 | @retval TRUE Find the name for this device.\r | |
515 | @retval FALSE Not found the name for this device.\r | |
516 | **/\r | |
517 | BOOLEAN\r | |
518 | OpalDriverGetDeviceNameByProtocol(\r | |
519 | EFI_HANDLE *AllHandlesBuffer,\r | |
520 | UINTN NumAllHandles,\r | |
521 | OPAL_DRIVER_DEVICE *Dev,\r | |
522 | BOOLEAN UseComp1\r | |
523 | )\r | |
524 | {\r | |
525 | EFI_HANDLE* ProtocolHandlesBuffer;\r | |
526 | UINTN NumProtocolHandles;\r | |
527 | EFI_STATUS Status;\r | |
528 | EFI_COMPONENT_NAME2_PROTOCOL* Cnp1_2; // efi component name and componentName2 have same layout\r | |
529 | EFI_GUID Protocol;\r | |
530 | UINTN StrLength;\r | |
531 | EFI_DEVICE_PATH_PROTOCOL* TmpDevPath;\r | |
532 | UINTN Index1;\r | |
533 | UINTN Index2;\r | |
534 | EFI_HANDLE TmpHandle;\r | |
535 | CHAR16 *DevName;\r | |
536 | \r | |
537 | if (Dev == NULL || AllHandlesBuffer == NULL || NumAllHandles == 0) {\r | |
538 | return FALSE;\r | |
539 | }\r | |
540 | \r | |
541 | Protocol = UseComp1 ? gEfiComponentNameProtocolGuid : gEfiComponentName2ProtocolGuid;\r | |
542 | \r | |
543 | //\r | |
544 | // Find all EFI_HANDLES with protocol\r | |
545 | //\r | |
546 | Status = gBS->LocateHandleBuffer(\r | |
547 | ByProtocol,\r | |
548 | &Protocol,\r | |
549 | NULL,\r | |
550 | &NumProtocolHandles,\r | |
551 | &ProtocolHandlesBuffer\r | |
552 | );\r | |
553 | if (EFI_ERROR(Status)) {\r | |
554 | return FALSE;\r | |
555 | }\r | |
556 | \r | |
557 | \r | |
558 | //\r | |
559 | // Exit early if no supported devices\r | |
560 | //\r | |
561 | if (NumProtocolHandles == 0) {\r | |
562 | return FALSE;\r | |
563 | }\r | |
564 | \r | |
565 | //\r | |
566 | // Get printable name by iterating through all protocols\r | |
567 | // using the handle as the child, and iterate through all handles for the controller\r | |
568 | // exit loop early once found, if not found, then delete device\r | |
569 | // storage security protocol instances already exist, add them to internal list\r | |
570 | //\r | |
571 | Status = EFI_DEVICE_ERROR;\r | |
572 | for (Index1 = 0; Index1 < NumProtocolHandles; Index1++) {\r | |
573 | DevName = NULL;\r | |
574 | \r | |
575 | if (Dev->Name16 != NULL) {\r | |
576 | return TRUE;\r | |
577 | }\r | |
578 | \r | |
579 | TmpHandle = ProtocolHandlesBuffer[Index1];\r | |
580 | \r | |
581 | Status = gBS->OpenProtocol(\r | |
582 | TmpHandle,\r | |
583 | &Protocol,\r | |
584 | (VOID**)&Cnp1_2,\r | |
585 | gImageHandle,\r | |
586 | NULL,\r | |
587 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
588 | );\r | |
589 | if (EFI_ERROR(Status) || Cnp1_2 == NULL) {\r | |
590 | continue;\r | |
591 | }\r | |
592 | \r | |
593 | //\r | |
594 | // Use all handles array as controller handle\r | |
595 | //\r | |
596 | for (Index2 = 0; Index2 < NumAllHandles; Index2++) {\r | |
597 | Status = Cnp1_2->GetControllerName(\r | |
598 | Cnp1_2,\r | |
599 | AllHandlesBuffer[Index2],\r | |
600 | Dev->Handle,\r | |
601 | LANGUAGE_ISO_639_2_ENGLISH,\r | |
602 | &DevName\r | |
603 | );\r | |
604 | if (EFI_ERROR(Status)) {\r | |
605 | Status = Cnp1_2->GetControllerName(\r | |
606 | Cnp1_2,\r | |
607 | AllHandlesBuffer[Index2],\r | |
608 | Dev->Handle,\r | |
609 | LANGUAGE_RFC_3066_ENGLISH,\r | |
610 | &DevName\r | |
611 | );\r | |
612 | }\r | |
613 | if (!EFI_ERROR(Status) && DevName != NULL) {\r | |
614 | StrLength = StrLen(DevName) + 1; // Add one for NULL terminator\r | |
615 | Dev->Name16 = AllocateZeroPool(StrLength * sizeof (CHAR16));\r | |
616 | ASSERT (Dev->Name16 != NULL);\r | |
617 | StrCpyS (Dev->Name16, StrLength, DevName);\r | |
618 | Dev->NameZ = (CHAR8*)AllocateZeroPool(StrLength);\r | |
b7c71793 | 619 | UnicodeStrToAsciiStrS (DevName, Dev->NameZ, StrLength);\r |
a06875e1 ED |
620 | \r |
621 | //\r | |
622 | // Retrieve bridge BDF info and port number or namespace depending on type\r | |
623 | //\r | |
624 | TmpDevPath = NULL;\r | |
625 | Status = gBS->OpenProtocol(\r | |
626 | Dev->Handle,\r | |
627 | &gEfiDevicePathProtocolGuid,\r | |
628 | (VOID**)&TmpDevPath,\r | |
629 | gImageHandle,\r | |
630 | NULL,\r | |
631 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
632 | );\r | |
633 | if (!EFI_ERROR(Status)) {\r | |
634 | Dev->OpalDevicePath = DuplicateDevicePath (TmpDevPath);\r | |
635 | return TRUE;\r | |
636 | }\r | |
637 | \r | |
638 | if (Dev->Name16 != NULL) {\r | |
639 | FreePool(Dev->Name16);\r | |
640 | Dev->Name16 = NULL;\r | |
641 | }\r | |
642 | if (Dev->NameZ != NULL) {\r | |
643 | FreePool(Dev->NameZ);\r | |
644 | Dev->NameZ = NULL;\r | |
645 | }\r | |
646 | }\r | |
647 | }\r | |
648 | }\r | |
649 | \r | |
650 | return FALSE;\r | |
651 | }\r | |
652 | \r | |
653 | /**\r | |
654 | Get devcie name through the component name protocol.\r | |
655 | \r | |
656 | @param[in] Dev The device which need to get name.\r | |
657 | \r | |
658 | @retval TRUE Find the name for this device.\r | |
659 | @retval FALSE Not found the name for this device.\r | |
660 | **/\r | |
661 | BOOLEAN\r | |
662 | OpalDriverGetDriverDeviceName(\r | |
663 | OPAL_DRIVER_DEVICE *Dev\r | |
664 | )\r | |
665 | {\r | |
666 | EFI_HANDLE* AllHandlesBuffer;\r | |
667 | UINTN NumAllHandles;\r | |
668 | EFI_STATUS Status;\r | |
669 | \r | |
670 | if (Dev == NULL) {\r | |
671 | DEBUG((DEBUG_ERROR | DEBUG_INIT, "OpalDriverGetDriverDeviceName Exiting, Dev=NULL\n"));\r | |
672 | return FALSE;\r | |
673 | }\r | |
674 | \r | |
675 | //\r | |
676 | // Iterate through ComponentName2 handles to get name, if fails, try ComponentName\r | |
677 | //\r | |
678 | if (Dev->Name16 == NULL) {\r | |
679 | DEBUG((DEBUG_ERROR | DEBUG_INIT, "Name is null, update it\n"));\r | |
680 | //\r | |
681 | // Find all EFI_HANDLES\r | |
682 | //\r | |
683 | Status = gBS->LocateHandleBuffer(\r | |
684 | AllHandles,\r | |
685 | NULL,\r | |
686 | NULL,\r | |
687 | &NumAllHandles,\r | |
688 | &AllHandlesBuffer\r | |
689 | );\r | |
690 | if (EFI_ERROR(Status)) {\r | |
691 | DEBUG ((DEBUG_INFO, "LocateHandleBuffer for AllHandles failed %r\n", Status ));\r | |
692 | return FALSE;\r | |
693 | }\r | |
694 | \r | |
695 | //\r | |
696 | // Try component Name2\r | |
697 | //\r | |
698 | if (!OpalDriverGetDeviceNameByProtocol(AllHandlesBuffer, NumAllHandles, Dev, FALSE)) {\r | |
699 | DEBUG((DEBUG_ERROR | DEBUG_INIT, "ComponentName2 failed to get device name, try ComponentName\n"));\r | |
700 | if (!OpalDriverGetDeviceNameByProtocol(AllHandlesBuffer, NumAllHandles, Dev, TRUE)) {\r | |
701 | DEBUG((DEBUG_ERROR | DEBUG_INIT, "ComponentName failed to get device name, skip device\n"));\r | |
702 | return FALSE;\r | |
703 | }\r | |
704 | }\r | |
705 | }\r | |
706 | \r | |
707 | return TRUE;\r | |
708 | }\r | |
709 | \r | |
710 | /**\r | |
711 | Main entry for this driver.\r | |
712 | \r | |
713 | @param ImageHandle Image Handle this driver.\r | |
714 | @param SystemTable Pointer to SystemTable.\r | |
715 | \r | |
716 | @retval EFI_SUCESS This function always complete successfully.\r | |
717 | **/\r | |
718 | EFI_STATUS\r | |
719 | EFIAPI\r | |
720 | EfiDriverEntryPoint(\r | |
721 | IN EFI_HANDLE ImageHandle,\r | |
722 | IN EFI_SYSTEM_TABLE* SystemTable\r | |
723 | )\r | |
724 | {\r | |
725 | EFI_STATUS Status;\r | |
726 | EFI_EVENT ReadyToBootEvent;\r | |
727 | \r | |
728 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
729 | ImageHandle,\r | |
730 | SystemTable,\r | |
731 | &gOpalDriverBinding,\r | |
732 | ImageHandle,\r | |
733 | &gOpalComponentName,\r | |
734 | &gOpalComponentName2\r | |
735 | );\r | |
736 | \r | |
737 | if (EFI_ERROR(Status)) {\r | |
738 | DEBUG((DEBUG_ERROR, "Install protocols to Opal driver Handle failed\n"));\r | |
739 | return Status ;\r | |
740 | }\r | |
741 | \r | |
742 | //\r | |
743 | // Initialize Driver object\r | |
744 | //\r | |
745 | ZeroMem(&mOpalDriver, sizeof(mOpalDriver));\r | |
746 | mOpalDriver.Handle = ImageHandle;\r | |
747 | \r | |
748 | //\r | |
749 | // register a ReadyToBoot event callback for sending BlockSid command\r | |
750 | //\r | |
751 | Status = EfiCreateEventReadyToBootEx (\r | |
752 | TPL_CALLBACK,\r | |
753 | ReadyToBootCallback,\r | |
754 | (VOID *) &ImageHandle,\r | |
755 | &ReadyToBootEvent\r | |
756 | );\r | |
757 | \r | |
f1430748 ED |
758 | //\r |
759 | // Install Hii packages.\r | |
760 | //\r | |
761 | HiiInstall();\r | |
762 | \r | |
a06875e1 ED |
763 | return Status;\r |
764 | }\r | |
765 | \r | |
766 | /**\r | |
767 | Tests to see if this driver supports a given controller.\r | |
768 | \r | |
769 | This function checks to see if the controller contains an instance of the\r | |
770 | EFI_STORAGE_SECURITY_COMMAND_PROTOCOL and the EFI_BLOCK_IO_PROTOCL\r | |
771 | and returns EFI_SUCCESS if it does.\r | |
772 | \r | |
773 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
774 | @param[in] ControllerHandle The Handle of the controller to test. This Handle\r | |
775 | must support a protocol interface that supplies\r | |
776 | an I/O abstraction to the driver.\r | |
777 | @param[in] RemainingDevicePath This parameter is ignored.\r | |
778 | \r | |
779 | @retval EFI_SUCCESS The device contains required protocols\r | |
780 | @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r | |
781 | RemainingDevicePath is already being managed by the driver\r | |
782 | specified by This.\r | |
783 | @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r | |
784 | RemainingDevicePath is already being managed by a different\r | |
785 | driver or an application that requires exclusive access.\r | |
786 | Currently not implemented.\r | |
787 | @retval EFI_UNSUPPORTED The device does not contain requires protocols\r | |
788 | \r | |
789 | **/\r | |
790 | EFI_STATUS\r | |
791 | EFIAPI\r | |
792 | OpalEfiDriverBindingSupported(\r | |
793 | IN EFI_DRIVER_BINDING_PROTOCOL* This,\r | |
794 | IN EFI_HANDLE Controller,\r | |
795 | IN EFI_DEVICE_PATH_PROTOCOL* RemainingDevicePath\r | |
796 | )\r | |
797 | {\r | |
798 | EFI_STATUS Status;\r | |
799 | EFI_STORAGE_SECURITY_COMMAND_PROTOCOL* SecurityCommand;\r | |
800 | EFI_BLOCK_IO_PROTOCOL* BlkIo;\r | |
801 | \r | |
802 | //\r | |
803 | // Test EFI_STORAGE_SECURITY_COMMAND_PROTOCOL on controller Handle.\r | |
804 | //\r | |
805 | Status = gBS->OpenProtocol(\r | |
806 | Controller,\r | |
807 | &gEfiStorageSecurityCommandProtocolGuid,\r | |
808 | ( VOID ** )&SecurityCommand,\r | |
809 | This->DriverBindingHandle,\r | |
810 | Controller,\r | |
811 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
812 | );\r | |
813 | \r | |
814 | if (Status == EFI_ALREADY_STARTED) {\r | |
815 | return EFI_SUCCESS;\r | |
816 | }\r | |
817 | \r | |
818 | if (EFI_ERROR(Status)) {\r | |
819 | return Status;\r | |
820 | }\r | |
821 | \r | |
822 | //\r | |
823 | // Close protocol and reopen in Start call\r | |
824 | //\r | |
825 | gBS->CloseProtocol(\r | |
826 | Controller,\r | |
827 | &gEfiStorageSecurityCommandProtocolGuid,\r | |
828 | This->DriverBindingHandle,\r | |
829 | Controller\r | |
830 | );\r | |
831 | \r | |
832 | //\r | |
833 | // Test EFI_BLOCK_IO_PROTOCOL on controller Handle, required by EFI_STORAGE_SECURITY_COMMAND_PROTOCOL\r | |
834 | // function APIs\r | |
835 | //\r | |
836 | Status = gBS->OpenProtocol(\r | |
837 | Controller,\r | |
838 | &gEfiBlockIoProtocolGuid,\r | |
839 | (VOID **)&BlkIo,\r | |
840 | This->DriverBindingHandle,\r | |
841 | Controller,\r | |
842 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
843 | );\r | |
844 | \r | |
845 | if (EFI_ERROR(Status)) {\r | |
846 | DEBUG((DEBUG_INFO, "No EFI_BLOCK_IO_PROTOCOL on controller\n"));\r | |
847 | return Status;\r | |
848 | }\r | |
849 | \r | |
850 | //\r | |
851 | // Close protocol and reopen in Start call\r | |
852 | //\r | |
853 | gBS->CloseProtocol(\r | |
854 | Controller,\r | |
855 | &gEfiBlockIoProtocolGuid,\r | |
856 | This->DriverBindingHandle,\r | |
857 | Controller\r | |
858 | );\r | |
859 | \r | |
860 | return EFI_SUCCESS;\r | |
861 | }\r | |
862 | \r | |
863 | /**\r | |
864 | Enables Opal Management on a supported device if available.\r | |
865 | \r | |
866 | The start function is designed to be called after the Opal UEFI Driver has confirmed the\r | |
867 | "controller", which is a child Handle, contains the EF_STORAGE_SECURITY_COMMAND protocols.\r | |
868 | This function will complete the other necessary checks, such as verifying the device supports\r | |
869 | the correct version of Opal. Upon verification, it will add the device to the\r | |
870 | Opal HII list in order to expose Opal managmeent options.\r | |
871 | \r | |
872 | @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
873 | @param[in] ControllerHandle The Handle of the controller to start. This Handle\r | |
874 | must support a protocol interface that supplies\r | |
875 | an I/O abstraction to the driver.\r | |
876 | @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r | |
877 | parameter is ignored by device drivers, and is optional for bus\r | |
878 | drivers. For a bus driver, if this parameter is NULL, then handles\r | |
879 | for all the children of Controller are created by this driver.\r | |
880 | If this parameter is not NULL and the first Device Path Node is\r | |
881 | not the End of Device Path Node, then only the Handle for the\r | |
882 | child device specified by the first Device Path Node of\r | |
883 | RemainingDevicePath is created by this driver.\r | |
884 | If the first Device Path Node of RemainingDevicePath is\r | |
885 | the End of Device Path Node, no child Handle is created by this\r | |
886 | driver.\r | |
887 | \r | |
888 | @retval EFI_SUCCESS Opal management was enabled.\r | |
889 | @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r | |
890 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r | |
891 | @retval Others The driver failed to start the device.\r | |
892 | \r | |
893 | **/\r | |
894 | EFI_STATUS\r | |
895 | EFIAPI\r | |
896 | OpalEfiDriverBindingStart(\r | |
897 | IN EFI_DRIVER_BINDING_PROTOCOL* This,\r | |
898 | IN EFI_HANDLE Controller,\r | |
899 | IN EFI_DEVICE_PATH_PROTOCOL* RemainingDevicePath\r | |
900 | )\r | |
901 | {\r | |
902 | EFI_STATUS Status;\r | |
903 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
904 | OPAL_DRIVER_DEVICE *Dev;\r | |
905 | OPAL_DRIVER_DEVICE *Itr;\r | |
906 | BOOLEAN Result;\r | |
907 | \r | |
908 | Itr = mOpalDriver.DeviceList;\r | |
909 | while (Itr != NULL) {\r | |
910 | if (Controller == Itr->Handle) {\r | |
911 | return EFI_SUCCESS;\r | |
912 | }\r | |
913 | Itr = Itr->Next;\r | |
914 | }\r | |
915 | \r | |
916 | //\r | |
917 | // Create internal device for tracking. This allows all disks to be tracked\r | |
918 | // by same HII form\r | |
919 | //\r | |
920 | Dev = (OPAL_DRIVER_DEVICE*)AllocateZeroPool(sizeof(OPAL_DRIVER_DEVICE));\r | |
921 | if (Dev == NULL) {\r | |
922 | return EFI_OUT_OF_RESOURCES;\r | |
923 | }\r | |
924 | Dev->Handle = Controller;\r | |
925 | \r | |
926 | //\r | |
927 | // Open EFI_STORAGE_SECURITY_COMMAND_PROTOCOL to perform Opal supported checks\r | |
928 | //\r | |
929 | Status = gBS->OpenProtocol(\r | |
930 | Controller,\r | |
931 | &gEfiStorageSecurityCommandProtocolGuid,\r | |
932 | (VOID **)&Dev->Sscp,\r | |
933 | This->DriverBindingHandle,\r | |
934 | Controller,\r | |
935 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
936 | );\r | |
937 | if (EFI_ERROR(Status)) {\r | |
938 | FreePool(Dev);\r | |
939 | return Status;\r | |
940 | }\r | |
941 | \r | |
942 | //\r | |
943 | // Open EFI_BLOCK_IO_PROTOCOL on controller Handle, required by EFI_STORAGE_SECURITY_COMMAND_PROTOCOL\r | |
944 | // function APIs\r | |
945 | //\r | |
946 | Status = gBS->OpenProtocol(\r | |
947 | Controller,\r | |
948 | &gEfiBlockIoProtocolGuid,\r | |
949 | (VOID **)&BlkIo,\r | |
950 | This->DriverBindingHandle,\r | |
951 | Controller,\r | |
952 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
953 | );\r | |
954 | if (EFI_ERROR(Status)) {\r | |
955 | //\r | |
956 | // Close storage security that was opened\r | |
957 | //\r | |
958 | gBS->CloseProtocol(\r | |
959 | Controller,\r | |
960 | &gEfiStorageSecurityCommandProtocolGuid,\r | |
961 | This->DriverBindingHandle,\r | |
962 | Controller\r | |
963 | );\r | |
964 | \r | |
965 | FreePool(Dev);\r | |
966 | return Status;\r | |
967 | }\r | |
968 | \r | |
969 | //\r | |
970 | // Save mediaId\r | |
971 | //\r | |
972 | Dev->MediaId = BlkIo->Media->MediaId;\r | |
973 | \r | |
974 | gBS->CloseProtocol(\r | |
975 | Controller,\r | |
976 | &gEfiBlockIoProtocolGuid,\r | |
977 | This->DriverBindingHandle,\r | |
978 | Controller\r | |
979 | );\r | |
980 | \r | |
981 | //\r | |
982 | // Acquire Ascii printable name of child, if not found, then ignore device\r | |
983 | //\r | |
984 | Result = OpalDriverGetDriverDeviceName (Dev);\r | |
985 | if (!Result) {\r | |
986 | goto Done;\r | |
987 | }\r | |
988 | \r | |
989 | Status = OpalDiskInitialize (Dev);\r | |
990 | if (EFI_ERROR (Status)) {\r | |
991 | goto Done;\r | |
992 | }\r | |
993 | \r | |
994 | AddDeviceToTail(Dev);\r | |
995 | \r | |
a06875e1 ED |
996 | //\r |
997 | // check if device is locked and prompt for password\r | |
998 | //\r | |
999 | OpalDriverRequestPassword (Dev);\r | |
1000 | \r | |
1001 | return EFI_SUCCESS;\r | |
1002 | \r | |
1003 | Done:\r | |
1004 | //\r | |
1005 | // free device, close protocols and exit\r | |
1006 | //\r | |
1007 | gBS->CloseProtocol(\r | |
1008 | Controller,\r | |
1009 | &gEfiStorageSecurityCommandProtocolGuid,\r | |
1010 | This->DriverBindingHandle,\r | |
1011 | Controller\r | |
1012 | );\r | |
1013 | \r | |
1014 | FreePool(Dev);\r | |
1015 | \r | |
1016 | return EFI_DEVICE_ERROR;\r | |
1017 | }\r | |
1018 | \r | |
1019 | /**\r | |
1020 | Stop this driver on Controller.\r | |
1021 | \r | |
1022 | @param This Protocol instance pointer.\r | |
1023 | @param Controller Handle of device to stop driver on\r | |
1024 | @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r | |
1025 | children is zero stop the entire bus driver.\r | |
1026 | @param ChildHandleBuffer List of Child Handles to Stop.\r | |
1027 | \r | |
1028 | @retval EFI_SUCCESS This driver is removed Controller.\r | |
1029 | @retval other This driver could not be removed from this device.\r | |
1030 | \r | |
1031 | **/\r | |
1032 | EFI_STATUS\r | |
1033 | EFIAPI\r | |
1034 | OpalEfiDriverBindingStop(\r | |
1035 | EFI_DRIVER_BINDING_PROTOCOL* This,\r | |
1036 | EFI_HANDLE Controller,\r | |
1037 | UINTN NumberOfChildren,\r | |
1038 | EFI_HANDLE* ChildHandleBuffer\r | |
1039 | )\r | |
1040 | {\r | |
1041 | OPAL_DRIVER_DEVICE* Itr;\r | |
1042 | \r | |
1043 | Itr = mOpalDriver.DeviceList;\r | |
1044 | \r | |
1045 | //\r | |
1046 | // does Controller match any of the devices we are managing for Opal\r | |
1047 | //\r | |
1048 | while (Itr != NULL) {\r | |
1049 | if (Itr->Handle == Controller) {\r | |
1050 | OpalDriverStopDevice (Itr);\r | |
1051 | return EFI_SUCCESS;\r | |
1052 | }\r | |
1053 | \r | |
1054 | Itr = Itr->Next;\r | |
1055 | }\r | |
1056 | \r | |
1057 | return EFI_NOT_FOUND;\r | |
1058 | }\r | |
1059 | \r | |
1060 | \r | |
1061 | /**\r | |
1062 | Unloads UEFI Driver. Very useful for debugging and testing.\r | |
1063 | \r | |
1064 | @param ImageHandle Image Handle this driver.\r | |
1065 | \r | |
1066 | @retval EFI_SUCCESS This function always complete successfully.\r | |
1067 | @retval EFI_INVALID_PARAMETER The input ImageHandle is not valid.\r | |
1068 | **/\r | |
1069 | EFI_STATUS\r | |
1070 | EFIAPI\r | |
1071 | OpalEfiDriverUnload (\r | |
1072 | IN EFI_HANDLE ImageHandle\r | |
1073 | )\r | |
1074 | {\r | |
1075 | EFI_STATUS Status;\r | |
1076 | OPAL_DRIVER_DEVICE *Itr;\r | |
1077 | \r | |
1078 | Status = EFI_SUCCESS;\r | |
1079 | \r | |
1080 | if (ImageHandle != gImageHandle) {\r | |
1081 | return (EFI_INVALID_PARAMETER);\r | |
1082 | }\r | |
1083 | \r | |
1084 | //\r | |
1085 | // Uninstall any interface added to each device by us\r | |
1086 | //\r | |
1087 | while (mOpalDriver.DeviceList) {\r | |
1088 | Itr = mOpalDriver.DeviceList;\r | |
1089 | //\r | |
1090 | // Remove OPAL_DRIVER_DEVICE from the list\r | |
1091 | // it updates the controllerList pointer\r | |
1092 | //\r | |
1093 | OpalDriverStopDevice(Itr);\r | |
1094 | }\r | |
1095 | \r | |
1096 | //\r | |
1097 | // Uninstall the HII capability\r | |
1098 | //\r | |
1099 | Status = HiiUninstall();\r | |
1100 | \r | |
1101 | return Status;\r | |
1102 | }\r | |
1103 | \r |