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BaseTools: Enhance the check for numeric opcode with EFI_IFR_DISPLAY_INT_DEC attribute.
[mirror_edk2.git] / MdeModulePkg / Universal / SetupBrowserDxe / Setup.c
1 /** @file
2 Entry and initialization module for the browser.
3
4 Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include "Setup.h"
16
17 SETUP_DRIVER_PRIVATE_DATA mPrivateData = {
18 SETUP_DRIVER_SIGNATURE,
19 NULL,
20 {
21 SendForm,
22 BrowserCallback
23 },
24 {
25 SetScope,
26 RegisterHotKey,
27 RegiserExitHandler,
28 SaveReminder
29 },
30 {
31 BROWSER_EXTENSION2_VERSION_1_1,
32 SetScope,
33 RegisterHotKey,
34 RegiserExitHandler,
35 IsBrowserDataModified,
36 ExecuteAction,
37 {NULL,NULL},
38 {NULL,NULL},
39 IsResetRequired
40 }
41 };
42
43 EFI_HII_DATABASE_PROTOCOL *mHiiDatabase;
44 EFI_HII_CONFIG_ROUTING_PROTOCOL *mHiiConfigRouting;
45 EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL *mPathFromText;
46 EDKII_FORM_DISPLAY_ENGINE_PROTOCOL *mFormDisplay;
47
48 UINTN gBrowserContextCount = 0;
49 LIST_ENTRY gBrowserContextList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserContextList);
50 LIST_ENTRY gBrowserFormSetList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserFormSetList);
51 LIST_ENTRY gBrowserHotKeyList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserHotKeyList);
52 LIST_ENTRY gBrowserStorageList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserStorageList);
53 LIST_ENTRY gBrowserSaveFailFormSetList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserSaveFailFormSetList);
54
55 BOOLEAN mSystemSubmit = FALSE;
56 BOOLEAN gResetRequired;
57 BOOLEAN gExitRequired;
58 BROWSER_SETTING_SCOPE gBrowserSettingScope = FormSetLevel;
59 BOOLEAN mBrowserScopeFirstSet = TRUE;
60 EXIT_HANDLER ExitHandlerFunction = NULL;
61 FORM_BROWSER_FORMSET *mSystemLevelFormSet;
62
63 //
64 // Browser Global Strings
65 //
66 CHAR16 *gEmptyString;
67 CHAR16 *mUnknownString = L"!";
68
69 EFI_GUID gZeroGuid = {0, 0, 0, {0, 0, 0, 0, 0, 0, 0, 0}};
70
71 extern EFI_GUID mCurrentFormSetGuid;
72 extern EFI_HII_HANDLE mCurrentHiiHandle;
73 extern UINT16 mCurrentFormId;
74 extern FORM_DISPLAY_ENGINE_FORM gDisplayFormData;
75
76 /**
77 Create a menu with specified formset GUID and form ID, and add it as a child
78 of the given parent menu.
79
80 @param HiiHandle Hii handle related to this formset.
81 @param FormSetGuid The Formset Guid of menu to be added.
82 @param FormId The Form ID of menu to be added.
83 @param QuestionId The question id of this menu to be added.
84
85 @return A pointer to the newly added menu or NULL if memory is insufficient.
86
87 **/
88 FORM_ENTRY_INFO *
89 UiAddMenuList (
90 IN EFI_HII_HANDLE HiiHandle,
91 IN EFI_GUID *FormSetGuid,
92 IN UINT16 FormId,
93 IN UINT16 QuestionId
94 )
95 {
96 FORM_ENTRY_INFO *MenuList;
97
98 MenuList = AllocateZeroPool (sizeof (FORM_ENTRY_INFO));
99 if (MenuList == NULL) {
100 return NULL;
101 }
102
103 MenuList->Signature = FORM_ENTRY_INFO_SIGNATURE;
104
105 MenuList->HiiHandle = HiiHandle;
106 CopyMem (&MenuList->FormSetGuid, FormSetGuid, sizeof (EFI_GUID));
107 MenuList->FormId = FormId;
108 MenuList->QuestionId = QuestionId;
109
110 //
111 // If parent is not specified, it is the root Form of a Formset
112 //
113 InsertTailList (&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &MenuList->Link);
114
115 return MenuList;
116 }
117
118 /**
119 Return the form id for the input hiihandle and formset.
120
121 @param HiiHandle HiiHandle for FormSet.
122 @param FormSetGuid The Formset GUID of the menu to search.
123
124 @return First form's id for this form set.
125
126 **/
127 EFI_FORM_ID
128 GetFirstFormId (
129 IN EFI_HII_HANDLE HiiHandle,
130 IN EFI_GUID *FormSetGuid
131 )
132 {
133 LIST_ENTRY *Link;
134 FORM_BROWSER_FORM *Form;
135
136 Link = GetFirstNode (&gCurrentSelection->FormSet->FormListHead);
137 Form = FORM_BROWSER_FORM_FROM_LINK (Link);
138
139 return Form->FormId;
140 }
141
142 /**
143 Search Menu with given FormSetGuid and FormId in all cached menu list.
144
145 @param HiiHandle HiiHandle for FormSet.
146 @param FormSetGuid The Formset GUID of the menu to search.
147 @param FormId The Form ID of menu to search.
148
149 @return A pointer to menu found or NULL if not found.
150
151 **/
152 FORM_ENTRY_INFO *
153 UiFindMenuList (
154 IN EFI_HII_HANDLE HiiHandle,
155 IN EFI_GUID *FormSetGuid,
156 IN UINT16 FormId
157 )
158 {
159 LIST_ENTRY *Link;
160 FORM_ENTRY_INFO *MenuList;
161 FORM_ENTRY_INFO *RetMenu;
162 EFI_FORM_ID FirstFormId;
163
164 RetMenu = NULL;
165
166 Link = GetFirstNode (&mPrivateData.FormBrowserEx2.FormViewHistoryHead);
167 while (!IsNull (&mPrivateData.FormBrowserEx2.FormViewHistoryHead, Link)) {
168 MenuList = FORM_ENTRY_INFO_FROM_LINK (Link);
169 Link = GetNextNode (&mPrivateData.FormBrowserEx2.FormViewHistoryHead, Link);
170
171 //
172 // If already find the menu, free the menus behind it.
173 //
174 if (RetMenu != NULL) {
175 RemoveEntryList (&MenuList->Link);
176 FreePool (MenuList);
177 continue;
178 }
179
180 //
181 // Find the same FromSet.
182 //
183 if (MenuList->HiiHandle == HiiHandle) {
184 if (CompareGuid (&MenuList->FormSetGuid, &gZeroGuid)) {
185 //
186 // FormSetGuid is not specified.
187 //
188 RetMenu = MenuList;
189 } else if (CompareGuid (&MenuList->FormSetGuid, FormSetGuid)) {
190 if (MenuList->FormId == FormId) {
191 RetMenu = MenuList;
192 } else if (FormId == 0 || MenuList->FormId == 0 ) {
193 FirstFormId = GetFirstFormId (HiiHandle, FormSetGuid);
194 if ((FormId == 0 && FirstFormId == MenuList->FormId) || (MenuList->FormId ==0 && FirstFormId == FormId)) {
195 RetMenu = MenuList;
196 }
197 }
198 }
199 }
200 }
201
202 return RetMenu;
203 }
204
205 /**
206 Find parent menu for current menu.
207
208 @param CurrentMenu Current Menu
209 @param SettingLevel Whether find parent menu in Form Level or Formset level.
210 In form level, just find the parent menu;
211 In formset level, find the parent menu which has different
212 formset guid value.
213
214 @retval The parent menu for current menu.
215 **/
216 FORM_ENTRY_INFO *
217 UiFindParentMenu (
218 IN FORM_ENTRY_INFO *CurrentMenu,
219 IN BROWSER_SETTING_SCOPE SettingLevel
220 )
221 {
222 FORM_ENTRY_INFO *ParentMenu;
223 LIST_ENTRY *Link;
224
225 ASSERT (SettingLevel == FormLevel || SettingLevel == FormSetLevel);
226
227 if (CurrentMenu == NULL) {
228 return NULL;
229 }
230
231 ParentMenu = NULL;
232 Link = &CurrentMenu->Link;
233
234 while (Link->BackLink != &mPrivateData.FormBrowserEx2.FormViewHistoryHead) {
235 ParentMenu = FORM_ENTRY_INFO_FROM_LINK (Link->BackLink);
236
237 if (SettingLevel == FormLevel) {
238 //
239 // For FormLevel, just find the parent menu, return.
240 //
241 break;
242 }
243
244 if (!CompareGuid (&CurrentMenu->FormSetGuid, &ParentMenu->FormSetGuid)) {
245 //
246 // For SystemLevel, must find the menu which has different formset.
247 //
248 break;
249 }
250
251 Link = Link->BackLink;
252 }
253
254 //
255 // Not find the parent menu, just return NULL.
256 //
257 if (Link->BackLink == &mPrivateData.FormBrowserEx2.FormViewHistoryHead) {
258 return NULL;
259 }
260
261 return ParentMenu;
262 }
263
264 /**
265 Free Menu list linked list.
266
267 @param MenuListHead One Menu list point in the menu list.
268
269 **/
270 VOID
271 UiFreeMenuList (
272 LIST_ENTRY *MenuListHead
273 )
274 {
275 FORM_ENTRY_INFO *MenuList;
276
277 while (!IsListEmpty (MenuListHead)) {
278 MenuList = FORM_ENTRY_INFO_FROM_LINK (MenuListHead->ForwardLink);
279 RemoveEntryList (&MenuList->Link);
280
281 FreePool (MenuList);
282 }
283 }
284
285 /**
286 Copy current Menu list to the new menu list.
287
288 @param NewMenuListHead New create Menu list.
289 @param CurrentMenuListHead Current Menu list.
290
291 **/
292 VOID
293 UiCopyMenuList (
294 OUT LIST_ENTRY *NewMenuListHead,
295 IN LIST_ENTRY *CurrentMenuListHead
296 )
297 {
298 LIST_ENTRY *Link;
299 FORM_ENTRY_INFO *MenuList;
300 FORM_ENTRY_INFO *NewMenuEntry;
301
302 //
303 // If new menu list not empty, free it first.
304 //
305 UiFreeMenuList (NewMenuListHead);
306
307 Link = GetFirstNode (CurrentMenuListHead);
308 while (!IsNull (CurrentMenuListHead, Link)) {
309 MenuList = FORM_ENTRY_INFO_FROM_LINK (Link);
310 Link = GetNextNode (CurrentMenuListHead, Link);
311
312 NewMenuEntry = AllocateZeroPool (sizeof (FORM_ENTRY_INFO));
313 ASSERT (NewMenuEntry != NULL);
314 NewMenuEntry->Signature = FORM_ENTRY_INFO_SIGNATURE;
315 NewMenuEntry->HiiHandle = MenuList->HiiHandle;
316 CopyMem (&NewMenuEntry->FormSetGuid, &MenuList->FormSetGuid, sizeof (EFI_GUID));
317 NewMenuEntry->FormId = MenuList->FormId;
318 NewMenuEntry->QuestionId = MenuList->QuestionId;
319
320 InsertTailList (NewMenuListHead, &NewMenuEntry->Link);
321 }
322 }
323
324 /**
325 Load all hii formset to the browser.
326
327 **/
328 VOID
329 LoadAllHiiFormset (
330 VOID
331 )
332 {
333 FORM_BROWSER_FORMSET *LocalFormSet;
334 EFI_HII_HANDLE *HiiHandles;
335 UINTN Index;
336 EFI_GUID ZeroGuid;
337 EFI_STATUS Status;
338 FORM_BROWSER_FORMSET *OldFormset;
339
340 OldFormset = mSystemLevelFormSet;
341
342 //
343 // Get all the Hii handles
344 //
345 HiiHandles = HiiGetHiiHandles (NULL);
346 ASSERT (HiiHandles != NULL);
347
348 //
349 // Search for formset of each class type
350 //
351 for (Index = 0; HiiHandles[Index] != NULL; Index++) {
352 //
353 // Check HiiHandles[Index] does exist in global maintain list.
354 //
355 if (GetFormSetFromHiiHandle (HiiHandles[Index]) != NULL) {
356 continue;
357 }
358
359 //
360 // Initilize FormSet Setting
361 //
362 LocalFormSet = AllocateZeroPool (sizeof (FORM_BROWSER_FORMSET));
363 ASSERT (LocalFormSet != NULL);
364 mSystemLevelFormSet = LocalFormSet;
365
366 ZeroMem (&ZeroGuid, sizeof (ZeroGuid));
367 Status = InitializeFormSet (HiiHandles[Index], &ZeroGuid, LocalFormSet);
368 if (EFI_ERROR (Status) || IsListEmpty (&LocalFormSet->FormListHead)) {
369 DestroyFormSet (LocalFormSet);
370 continue;
371 }
372 InitializeCurrentSetting (LocalFormSet);
373
374 //
375 // Initilize Questions' Value
376 //
377 Status = LoadFormSetConfig (NULL, LocalFormSet);
378 if (EFI_ERROR (Status)) {
379 DestroyFormSet (LocalFormSet);
380 continue;
381 }
382 }
383
384 //
385 // Free resources, and restore gOldFormSet and gClassOfVfr
386 //
387 FreePool (HiiHandles);
388
389 mSystemLevelFormSet = OldFormset;
390 }
391
392 /**
393 Pop up the error info.
394
395 @param BrowserStatus The input browser status.
396 @param HiiHandle The Hiihandle for this opcode.
397 @param OpCode The opcode use to get the erro info and timeout value.
398 @param ErrorString Error string used by BROWSER_NO_SUBMIT_IF.
399
400 **/
401 UINT32
402 PopupErrorMessage (
403 IN UINT32 BrowserStatus,
404 IN EFI_HII_HANDLE HiiHandle,
405 IN EFI_IFR_OP_HEADER *OpCode, OPTIONAL
406 IN CHAR16 *ErrorString
407 )
408 {
409 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
410 USER_INPUT UserInputData;
411
412 Statement = NULL;
413
414 if (OpCode != NULL) {
415 Statement = AllocateZeroPool (sizeof(FORM_DISPLAY_ENGINE_STATEMENT));
416 ASSERT (Statement != NULL);
417 Statement->OpCode = OpCode;
418 gDisplayFormData.HighLightedStatement = Statement;
419 }
420
421 //
422 // Used to compatible with old display engine.
423 // New display engine not use this field.
424 //
425 gDisplayFormData.ErrorString = ErrorString;
426 gDisplayFormData.BrowserStatus = BrowserStatus;
427
428 if (HiiHandle != NULL) {
429 gDisplayFormData.HiiHandle = HiiHandle;
430 }
431
432 mFormDisplay->FormDisplay (&gDisplayFormData, &UserInputData);
433
434 gDisplayFormData.BrowserStatus = BROWSER_SUCCESS;
435 gDisplayFormData.ErrorString = NULL;
436
437 if (OpCode != NULL) {
438 FreePool (Statement);
439 }
440
441 return UserInputData.Action;
442 }
443
444 /**
445 This is the routine which an external caller uses to direct the browser
446 where to obtain it's information.
447
448
449 @param This The Form Browser protocol instanse.
450 @param Handles A pointer to an array of Handles. If HandleCount > 1 we
451 display a list of the formsets for the handles specified.
452 @param HandleCount The number of Handles specified in Handle.
453 @param FormSetGuid This field points to the EFI_GUID which must match the Guid
454 field in the EFI_IFR_FORM_SET op-code for the specified
455 forms-based package. If FormSetGuid is NULL, then this
456 function will display the first found forms package.
457 @param FormId This field specifies which EFI_IFR_FORM to render as the first
458 displayable page. If this field has a value of 0x0000, then
459 the forms browser will render the specified forms in their encoded order.
460 @param ScreenDimensions Points to recommended form dimensions, including any non-content area, in
461 characters.
462 @param ActionRequest Points to the action recommended by the form.
463
464 @retval EFI_SUCCESS The function completed successfully.
465 @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
466 @retval EFI_NOT_FOUND No valid forms could be found to display.
467
468 **/
469 EFI_STATUS
470 EFIAPI
471 SendForm (
472 IN CONST EFI_FORM_BROWSER2_PROTOCOL *This,
473 IN EFI_HII_HANDLE *Handles,
474 IN UINTN HandleCount,
475 IN EFI_GUID *FormSetGuid, OPTIONAL
476 IN UINT16 FormId, OPTIONAL
477 IN CONST EFI_SCREEN_DESCRIPTOR *ScreenDimensions, OPTIONAL
478 OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest OPTIONAL
479 )
480 {
481 EFI_STATUS Status;
482 UI_MENU_SELECTION *Selection;
483 UINTN Index;
484 FORM_BROWSER_FORMSET *FormSet;
485 FORM_ENTRY_INFO *MenuList;
486
487 //
488 // If EDKII_FORM_DISPLAY_ENGINE_PROTOCOL not found, return EFI_UNSUPPORTED.
489 //
490 if (mFormDisplay == NULL) {
491 return EFI_UNSUPPORTED;
492 }
493
494 //
495 // Save globals used by SendForm()
496 //
497 SaveBrowserContext ();
498
499 gResetRequired = FALSE;
500 gExitRequired = FALSE;
501 Status = EFI_SUCCESS;
502 gEmptyString = L"";
503 gDisplayFormData.ScreenDimensions = (EFI_SCREEN_DESCRIPTOR *) ScreenDimensions;
504
505 for (Index = 0; Index < HandleCount; Index++) {
506 Selection = AllocateZeroPool (sizeof (UI_MENU_SELECTION));
507 ASSERT (Selection != NULL);
508
509 Selection->Handle = Handles[Index];
510 if (FormSetGuid != NULL) {
511 CopyMem (&Selection->FormSetGuid, FormSetGuid, sizeof (EFI_GUID));
512 Selection->FormId = FormId;
513 } else {
514 CopyMem (&Selection->FormSetGuid, &gEfiHiiPlatformSetupFormsetGuid, sizeof (EFI_GUID));
515 }
516
517 do {
518 FormSet = AllocateZeroPool (sizeof (FORM_BROWSER_FORMSET));
519 ASSERT (FormSet != NULL);
520
521 //
522 // Validate the HiiHandle
523 // if validate failed, find the first validate parent HiiHandle.
524 //
525 if (!ValidateHiiHandle(Selection->Handle)) {
526 FindNextMenu (Selection, FormSetLevel);
527 }
528
529 //
530 // Initialize internal data structures of FormSet
531 //
532 Status = InitializeFormSet (Selection->Handle, &Selection->FormSetGuid, FormSet);
533 if (EFI_ERROR (Status) || IsListEmpty (&FormSet->FormListHead)) {
534 DestroyFormSet (FormSet);
535 break;
536 }
537 Selection->FormSet = FormSet;
538 mSystemLevelFormSet = FormSet;
539
540 //
541 // Display this formset
542 //
543 gCurrentSelection = Selection;
544
545 Status = SetupBrowser (Selection);
546
547 gCurrentSelection = NULL;
548 mSystemLevelFormSet = NULL;
549
550 //
551 // If no data is changed, don't need to save current FormSet into the maintain list.
552 //
553 if (!IsNvUpdateRequiredForFormSet (FormSet)) {
554 CleanBrowserStorage(FormSet);
555 RemoveEntryList (&FormSet->Link);
556 DestroyFormSet (FormSet);
557 }
558
559 if (EFI_ERROR (Status)) {
560 break;
561 }
562 } while (Selection->Action == UI_ACTION_REFRESH_FORMSET);
563
564 FreePool (Selection);
565 }
566
567 if (ActionRequest != NULL) {
568 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
569 if (gResetRequired) {
570 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_RESET;
571 }
572 }
573
574 mFormDisplay->ExitDisplay();
575
576 //
577 // Clear the menu history data.
578 //
579 while (!IsListEmpty (&mPrivateData.FormBrowserEx2.FormViewHistoryHead)) {
580 MenuList = FORM_ENTRY_INFO_FROM_LINK (mPrivateData.FormBrowserEx2.FormViewHistoryHead.ForwardLink);
581 RemoveEntryList (&MenuList->Link);
582 FreePool (MenuList);
583 }
584
585 //
586 // Restore globals used by SendForm()
587 //
588 RestoreBrowserContext ();
589
590 return Status;
591 }
592
593 /**
594 Get or set data to the storage.
595
596 @param ResultsDataSize The size of the buffer associatedwith ResultsData.
597 @param ResultsData A string returned from an IFR browser or
598 equivalent. The results string will have no
599 routing information in them.
600 @param RetrieveData A BOOLEAN field which allows an agent to retrieve
601 (if RetrieveData = TRUE) data from the uncommitted
602 browser state information or set (if RetrieveData
603 = FALSE) data in the uncommitted browser state
604 information.
605 @param Storage The pointer to the storage.
606
607 @retval EFI_SUCCESS The results have been distributed or are awaiting
608 distribution.
609
610 **/
611 EFI_STATUS
612 ProcessStorage (
613 IN OUT UINTN *ResultsDataSize,
614 IN OUT EFI_STRING *ResultsData,
615 IN BOOLEAN RetrieveData,
616 IN BROWSER_STORAGE *Storage
617 )
618 {
619 CHAR16 *ConfigResp;
620 EFI_STATUS Status;
621 CHAR16 *StrPtr;
622 UINTN BufferSize;
623 UINTN TmpSize;
624 FORMSET_STORAGE *BrowserStorage;
625
626 if (RetrieveData) {
627 //
628 // Generate <ConfigResp>
629 //
630 Status = StorageToConfigResp (Storage, &ConfigResp, Storage->ConfigRequest, TRUE);
631 if (EFI_ERROR (Status)) {
632 return Status;
633 }
634
635 //
636 // Skip <ConfigHdr> and '&' to point to <ConfigBody> when first copy the configbody.
637 // Also need to consider add "\0" at first time.
638 //
639 StrPtr = StrStr (ConfigResp, L"PATH");
640 ASSERT (StrPtr != NULL);
641 StrPtr = StrStr (StrPtr, L"&");
642 StrPtr += 1;
643 BufferSize = StrSize (StrPtr);
644
645 //
646 // Copy the data if the input buffer is bigger enough.
647 //
648 if (*ResultsDataSize >= BufferSize) {
649 StrCpy (*ResultsData, StrPtr);
650 }
651
652 *ResultsDataSize = BufferSize;
653 FreePool (ConfigResp);
654 } else {
655 //
656 // Prepare <ConfigResp>
657 //
658 BrowserStorage = GetFstStgFromBrsStg (Storage);
659 ASSERT (BrowserStorage != NULL);
660 TmpSize = StrLen (*ResultsData);
661 BufferSize = (TmpSize + StrLen (BrowserStorage->ConfigHdr) + 2) * sizeof (CHAR16);
662 ConfigResp = AllocateZeroPool (BufferSize);
663 ASSERT (ConfigResp != NULL);
664
665 StrCpy (ConfigResp, BrowserStorage->ConfigHdr);
666 StrCat (ConfigResp, L"&");
667 StrCat (ConfigResp, *ResultsData);
668
669 //
670 // Update Browser uncommited data
671 //
672 Status = ConfigRespToStorage (Storage, ConfigResp);
673 FreePool (ConfigResp);
674 if (EFI_ERROR (Status)) {
675 return Status;
676 }
677 }
678
679 return EFI_SUCCESS;
680 }
681
682 /**
683 This routine called this service in the browser to retrieve or set certain uncommitted
684 state information that resides in the open formsets.
685
686 @param This A pointer to the EFI_FORM_BROWSER2_PROTOCOL
687 instance.
688 @param ResultsDataSize A pointer to the size of the buffer associated
689 with ResultsData.
690 @param ResultsData A string returned from an IFR browser or
691 equivalent. The results string will have no
692 routing information in them.
693 @param RetrieveData A BOOLEAN field which allows an agent to retrieve
694 (if RetrieveData = TRUE) data from the uncommitted
695 browser state information or set (if RetrieveData
696 = FALSE) data in the uncommitted browser state
697 information.
698 @param VariableGuid An optional field to indicate the target variable
699 GUID name to use.
700 @param VariableName An optional field to indicate the target
701 human-readable variable name.
702
703 @retval EFI_SUCCESS The results have been distributed or are awaiting
704 distribution.
705 @retval EFI_BUFFER_TOO_SMALL The ResultsDataSize specified was too small to
706 contain the results data.
707
708 **/
709 EFI_STATUS
710 EFIAPI
711 BrowserCallback (
712 IN CONST EFI_FORM_BROWSER2_PROTOCOL *This,
713 IN OUT UINTN *ResultsDataSize,
714 IN OUT EFI_STRING ResultsData,
715 IN BOOLEAN RetrieveData,
716 IN CONST EFI_GUID *VariableGuid, OPTIONAL
717 IN CONST CHAR16 *VariableName OPTIONAL
718 )
719 {
720 EFI_STATUS Status;
721 LIST_ENTRY *Link;
722 BROWSER_STORAGE *Storage;
723 FORMSET_STORAGE *FormsetStorage;
724 UINTN TotalSize;
725 BOOLEAN Found;
726
727 if (ResultsDataSize == NULL || ResultsData == NULL) {
728 return EFI_INVALID_PARAMETER;
729 }
730
731 TotalSize = *ResultsDataSize;
732 Storage = NULL;
733 Found = FALSE;
734 Status = EFI_SUCCESS;
735
736 if (VariableGuid != NULL) {
737 //
738 // Try to find target storage in the current formset.
739 //
740 Link = GetFirstNode (&gBrowserStorageList);
741 while (!IsNull (&gBrowserStorageList, Link)) {
742 Storage = BROWSER_STORAGE_FROM_LINK (Link);
743 Link = GetNextNode (&gBrowserStorageList, Link);
744 //
745 // Check the current storage.
746 //
747 if (!CompareGuid (&Storage->Guid, (EFI_GUID *) VariableGuid)) {
748 continue;
749 }
750
751 if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
752 Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
753 //
754 // Buffer storage require both GUID and Name
755 //
756 if (VariableName == NULL) {
757 return EFI_NOT_FOUND;
758 }
759
760 if (StrCmp (Storage->Name, (CHAR16 *) VariableName) != 0) {
761 continue;
762 }
763 }
764
765 if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE ||
766 Storage->Type == EFI_HII_VARSTORE_BUFFER) {
767 if (mSystemLevelFormSet == NULL || mSystemLevelFormSet->HiiHandle == NULL) {
768 return EFI_NOT_FOUND;
769 }
770
771 if (Storage->HiiHandle != mSystemLevelFormSet->HiiHandle) {
772 continue;
773 }
774 }
775
776 Status = ProcessStorage (&TotalSize, &ResultsData, RetrieveData, Storage);
777 if (EFI_ERROR (Status)) {
778 return Status;
779 }
780
781 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
782 ConfigRequestAdjust (Storage, ResultsData, TRUE);
783 }
784
785 //
786 // Different formsets may have same varstore, so here just set the flag
787 // not exit the circle.
788 //
789 Found = TRUE;
790 break;
791 }
792
793 if (!Found) {
794 return EFI_NOT_FOUND;
795 }
796 } else {
797 //
798 // GUID/Name is not specified, take the first storage in FormSet
799 //
800 if (mSystemLevelFormSet == NULL) {
801 return EFI_NOT_READY;
802 }
803
804 //
805 // Generate <ConfigResp>
806 //
807 Link = GetFirstNode (&mSystemLevelFormSet->StorageListHead);
808 if (IsNull (&mSystemLevelFormSet->StorageListHead, Link)) {
809 return EFI_UNSUPPORTED;
810 }
811
812 FormsetStorage = FORMSET_STORAGE_FROM_LINK (Link);
813
814 Status = ProcessStorage (&TotalSize, &ResultsData, RetrieveData, FormsetStorage->BrowserStorage);
815 if (EFI_ERROR (Status)) {
816 return Status;
817 }
818 }
819
820 if (RetrieveData) {
821 Status = TotalSize <= *ResultsDataSize ? EFI_SUCCESS : EFI_BUFFER_TOO_SMALL;
822 *ResultsDataSize = TotalSize;
823 }
824
825 return Status;
826
827 }
828
829
830 /**
831 Callback function for SimpleTextInEx protocol install events
832
833 @param Event the event that is signaled.
834 @param Context not used here.
835
836 **/
837 VOID
838 EFIAPI
839 FormDisplayCallback (
840 IN EFI_EVENT Event,
841 IN VOID *Context
842 )
843 {
844 if (mFormDisplay != NULL) {
845 return;
846 }
847
848 gBS->LocateProtocol (
849 &gEdkiiFormDisplayEngineProtocolGuid,
850 NULL,
851 (VOID **) &mFormDisplay
852 );
853 }
854
855 /**
856 Initialize Setup Browser driver.
857
858 @param ImageHandle The image handle.
859 @param SystemTable The system table.
860
861 @retval EFI_SUCCESS The Setup Browser module is initialized correctly..
862 @return Other value if failed to initialize the Setup Browser module.
863
864 **/
865 EFI_STATUS
866 EFIAPI
867 InitializeSetup (
868 IN EFI_HANDLE ImageHandle,
869 IN EFI_SYSTEM_TABLE *SystemTable
870 )
871 {
872 EFI_STATUS Status;
873 VOID *Registration;
874
875 //
876 // Locate required Hii relative protocols
877 //
878 Status = gBS->LocateProtocol (
879 &gEfiHiiDatabaseProtocolGuid,
880 NULL,
881 (VOID **) &mHiiDatabase
882 );
883 ASSERT_EFI_ERROR (Status);
884
885 Status = gBS->LocateProtocol (
886 &gEfiHiiConfigRoutingProtocolGuid,
887 NULL,
888 (VOID **) &mHiiConfigRouting
889 );
890 ASSERT_EFI_ERROR (Status);
891
892 Status = gBS->LocateProtocol (
893 &gEfiDevicePathFromTextProtocolGuid,
894 NULL,
895 (VOID **) &mPathFromText
896 );
897
898 //
899 // Install FormBrowser2 protocol
900 //
901 mPrivateData.Handle = NULL;
902 Status = gBS->InstallProtocolInterface (
903 &mPrivateData.Handle,
904 &gEfiFormBrowser2ProtocolGuid,
905 EFI_NATIVE_INTERFACE,
906 &mPrivateData.FormBrowser2
907 );
908 ASSERT_EFI_ERROR (Status);
909
910 //
911 // Install FormBrowserEx2 protocol
912 //
913 InitializeListHead (&mPrivateData.FormBrowserEx2.FormViewHistoryHead);
914 InitializeListHead (&mPrivateData.FormBrowserEx2.OverrideQestListHead);
915 mPrivateData.Handle = NULL;
916 Status = gBS->InstallProtocolInterface (
917 &mPrivateData.Handle,
918 &gEdkiiFormBrowserEx2ProtocolGuid,
919 EFI_NATIVE_INTERFACE,
920 &mPrivateData.FormBrowserEx2
921 );
922 ASSERT_EFI_ERROR (Status);
923
924 Status = gBS->InstallProtocolInterface (
925 &mPrivateData.Handle,
926 &gEfiFormBrowserExProtocolGuid,
927 EFI_NATIVE_INTERFACE,
928 &mPrivateData.FormBrowserEx
929 );
930 ASSERT_EFI_ERROR (Status);
931
932 InitializeDisplayFormData ();
933
934 Status = gBS->LocateProtocol (
935 &gEdkiiFormDisplayEngineProtocolGuid,
936 NULL,
937 (VOID **) &mFormDisplay
938 );
939
940 if (EFI_ERROR (Status)) {
941 EfiCreateProtocolNotifyEvent (
942 &gEdkiiFormDisplayEngineProtocolGuid,
943 TPL_CALLBACK,
944 FormDisplayCallback,
945 NULL,
946 &Registration
947 );
948 }
949
950 return EFI_SUCCESS;
951 }
952
953
954 /**
955 Create a new string in HII Package List.
956
957 @param String The String to be added
958 @param HiiHandle The package list in the HII database to insert the
959 specified string.
960
961 @return The output string.
962
963 **/
964 EFI_STRING_ID
965 NewString (
966 IN CHAR16 *String,
967 IN EFI_HII_HANDLE HiiHandle
968 )
969 {
970 EFI_STRING_ID StringId;
971
972 StringId = HiiSetString (HiiHandle, 0, String, NULL);
973 ASSERT (StringId != 0);
974
975 return StringId;
976 }
977
978
979 /**
980 Delete a string from HII Package List.
981
982 @param StringId Id of the string in HII database.
983 @param HiiHandle The HII package list handle.
984
985 @retval EFI_SUCCESS The string was deleted successfully.
986
987 **/
988 EFI_STATUS
989 DeleteString (
990 IN EFI_STRING_ID StringId,
991 IN EFI_HII_HANDLE HiiHandle
992 )
993 {
994 CHAR16 NullChar;
995
996 NullChar = CHAR_NULL;
997 HiiSetString (HiiHandle, StringId, &NullChar, NULL);
998 return EFI_SUCCESS;
999 }
1000
1001
1002 /**
1003 Get the string based on the StringId and HII Package List Handle.
1004
1005 @param Token The String's ID.
1006 @param HiiHandle The package list in the HII database to search for
1007 the specified string.
1008
1009 @return The output string.
1010
1011 **/
1012 CHAR16 *
1013 GetToken (
1014 IN EFI_STRING_ID Token,
1015 IN EFI_HII_HANDLE HiiHandle
1016 )
1017 {
1018 EFI_STRING String;
1019
1020 if (HiiHandle == NULL) {
1021 return NULL;
1022 }
1023
1024 String = HiiGetString (HiiHandle, Token, NULL);
1025 if (String == NULL) {
1026 String = AllocateCopyPool (StrSize (mUnknownString), mUnknownString);
1027 ASSERT (String != NULL);
1028 }
1029 return (CHAR16 *) String;
1030 }
1031
1032
1033 /**
1034 Allocate new memory and then copy the Unicode string Source to Destination.
1035
1036 @param Dest Location to copy string
1037 @param Src String to copy
1038
1039 **/
1040 VOID
1041 NewStringCpy (
1042 IN OUT CHAR16 **Dest,
1043 IN CHAR16 *Src
1044 )
1045 {
1046 if (*Dest != NULL) {
1047 FreePool (*Dest);
1048 }
1049 *Dest = AllocateCopyPool (StrSize (Src), Src);
1050 ASSERT (*Dest != NULL);
1051 }
1052
1053
1054 /**
1055 Allocate new memory and concatinate Source on the end of Destination.
1056
1057 @param Dest String to added to the end of.
1058 @param Src String to concatinate.
1059
1060 **/
1061 VOID
1062 NewStringCat (
1063 IN OUT CHAR16 **Dest,
1064 IN CHAR16 *Src
1065 )
1066 {
1067 CHAR16 *NewString;
1068 UINTN TmpSize;
1069
1070 if (*Dest == NULL) {
1071 NewStringCpy (Dest, Src);
1072 return;
1073 }
1074
1075 TmpSize = StrSize (*Dest);
1076 NewString = AllocateZeroPool (TmpSize + StrSize (Src) - 1);
1077 ASSERT (NewString != NULL);
1078
1079 StrCpy (NewString, *Dest);
1080 StrCat (NewString, Src);
1081
1082 FreePool (*Dest);
1083 *Dest = NewString;
1084 }
1085
1086 /**
1087 Get Value for given Name from a NameValue Storage.
1088
1089 @param Storage The NameValue Storage.
1090 @param Name The Name.
1091 @param Value The retured Value.
1092 @param GetValueFrom Where to get source value, from EditValue or Value.
1093
1094 @retval EFI_SUCCESS Value found for given Name.
1095 @retval EFI_NOT_FOUND No such Name found in NameValue storage.
1096
1097 **/
1098 EFI_STATUS
1099 GetValueByName (
1100 IN BROWSER_STORAGE *Storage,
1101 IN CHAR16 *Name,
1102 IN OUT CHAR16 **Value,
1103 IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
1104 )
1105 {
1106 LIST_ENTRY *Link;
1107 NAME_VALUE_NODE *Node;
1108
1109 if (GetValueFrom != GetSetValueWithEditBuffer && GetValueFrom != GetSetValueWithBuffer) {
1110 return EFI_INVALID_PARAMETER;
1111 }
1112
1113 *Value = NULL;
1114
1115 Link = GetFirstNode (&Storage->NameValueListHead);
1116 while (!IsNull (&Storage->NameValueListHead, Link)) {
1117 Node = NAME_VALUE_NODE_FROM_LINK (Link);
1118
1119 if (StrCmp (Name, Node->Name) == 0) {
1120 if (GetValueFrom == GetSetValueWithEditBuffer) {
1121 NewStringCpy (Value, Node->EditValue);
1122 } else {
1123 NewStringCpy (Value, Node->Value);
1124 }
1125 return EFI_SUCCESS;
1126 }
1127
1128 Link = GetNextNode (&Storage->NameValueListHead, Link);
1129 }
1130
1131 return EFI_NOT_FOUND;
1132 }
1133
1134
1135 /**
1136 Set Value of given Name in a NameValue Storage.
1137
1138 @param Storage The NameValue Storage.
1139 @param Name The Name.
1140 @param Value The Value to set.
1141 @param SetValueTo Whether update editValue or Value.
1142 @param ReturnNode The node use the input name.
1143
1144 @retval EFI_SUCCESS Value found for given Name.
1145 @retval EFI_NOT_FOUND No such Name found in NameValue storage.
1146
1147 **/
1148 EFI_STATUS
1149 SetValueByName (
1150 IN BROWSER_STORAGE *Storage,
1151 IN CHAR16 *Name,
1152 IN CHAR16 *Value,
1153 IN GET_SET_QUESTION_VALUE_WITH SetValueTo,
1154 OUT NAME_VALUE_NODE **ReturnNode
1155 )
1156 {
1157 LIST_ENTRY *Link;
1158 NAME_VALUE_NODE *Node;
1159 CHAR16 *Buffer;
1160
1161 if (SetValueTo != GetSetValueWithEditBuffer && SetValueTo != GetSetValueWithBuffer) {
1162 return EFI_INVALID_PARAMETER;
1163 }
1164
1165 Link = GetFirstNode (&Storage->NameValueListHead);
1166 while (!IsNull (&Storage->NameValueListHead, Link)) {
1167 Node = NAME_VALUE_NODE_FROM_LINK (Link);
1168
1169 if (StrCmp (Name, Node->Name) == 0) {
1170 if (SetValueTo == GetSetValueWithEditBuffer) {
1171 Buffer = Node->EditValue;
1172 } else {
1173 Buffer = Node->Value;
1174 }
1175 if (Buffer != NULL) {
1176 FreePool (Buffer);
1177 }
1178 Buffer = AllocateCopyPool (StrSize (Value), Value);
1179 ASSERT (Buffer != NULL);
1180 if (SetValueTo == GetSetValueWithEditBuffer) {
1181 Node->EditValue = Buffer;
1182 } else {
1183 Node->Value = Buffer;
1184 }
1185
1186 if (ReturnNode != NULL) {
1187 *ReturnNode = Node;
1188 }
1189
1190 return EFI_SUCCESS;
1191 }
1192
1193 Link = GetNextNode (&Storage->NameValueListHead, Link);
1194 }
1195
1196 return EFI_NOT_FOUND;
1197 }
1198
1199
1200 /**
1201 Convert setting of Buffer Storage or NameValue Storage to <ConfigResp>.
1202
1203 @param Storage The Storage to be conveted.
1204 @param ConfigResp The returned <ConfigResp>.
1205 @param ConfigRequest The ConfigRequest string.
1206 @param GetEditBuf Get the data from editbuffer or buffer.
1207
1208 @retval EFI_SUCCESS Convert success.
1209 @retval EFI_INVALID_PARAMETER Incorrect storage type.
1210
1211 **/
1212 EFI_STATUS
1213 StorageToConfigResp (
1214 IN BROWSER_STORAGE *Storage,
1215 IN CHAR16 **ConfigResp,
1216 IN CHAR16 *ConfigRequest,
1217 IN BOOLEAN GetEditBuf
1218 )
1219 {
1220 EFI_STATUS Status;
1221 EFI_STRING Progress;
1222 LIST_ENTRY *Link;
1223 NAME_VALUE_NODE *Node;
1224 UINT8 *SourceBuf;
1225 FORMSET_STORAGE *FormsetStorage;
1226
1227 Status = EFI_SUCCESS;
1228
1229 switch (Storage->Type) {
1230 case EFI_HII_VARSTORE_BUFFER:
1231 case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
1232 SourceBuf = GetEditBuf ? Storage->EditBuffer : Storage->Buffer;
1233 Status = mHiiConfigRouting->BlockToConfig (
1234 mHiiConfigRouting,
1235 ConfigRequest,
1236 SourceBuf,
1237 Storage->Size,
1238 ConfigResp,
1239 &Progress
1240 );
1241 break;
1242
1243 case EFI_HII_VARSTORE_NAME_VALUE:
1244 *ConfigResp = NULL;
1245 FormsetStorage = GetFstStgFromBrsStg(Storage);
1246 ASSERT (FormsetStorage != NULL);
1247 NewStringCat (ConfigResp, FormsetStorage->ConfigHdr);
1248
1249 Link = GetFirstNode (&Storage->NameValueListHead);
1250 while (!IsNull (&Storage->NameValueListHead, Link)) {
1251 Node = NAME_VALUE_NODE_FROM_LINK (Link);
1252
1253 if (StrStr (ConfigRequest, Node->Name) != NULL) {
1254 NewStringCat (ConfigResp, L"&");
1255 NewStringCat (ConfigResp, Node->Name);
1256 NewStringCat (ConfigResp, L"=");
1257 if (GetEditBuf) {
1258 NewStringCat (ConfigResp, Node->EditValue);
1259 } else {
1260 NewStringCat (ConfigResp, Node->Value);
1261 }
1262 }
1263 Link = GetNextNode (&Storage->NameValueListHead, Link);
1264 }
1265 break;
1266
1267 case EFI_HII_VARSTORE_EFI_VARIABLE:
1268 default:
1269 Status = EFI_INVALID_PARAMETER;
1270 break;
1271 }
1272
1273 return Status;
1274 }
1275
1276
1277 /**
1278 Convert <ConfigResp> to settings in Buffer Storage or NameValue Storage.
1279
1280 @param Storage The Storage to receive the settings.
1281 @param ConfigResp The <ConfigResp> to be converted.
1282
1283 @retval EFI_SUCCESS Convert success.
1284 @retval EFI_INVALID_PARAMETER Incorrect storage type.
1285
1286 **/
1287 EFI_STATUS
1288 ConfigRespToStorage (
1289 IN BROWSER_STORAGE *Storage,
1290 IN CHAR16 *ConfigResp
1291 )
1292 {
1293 EFI_STATUS Status;
1294 EFI_STRING Progress;
1295 UINTN BufferSize;
1296 CHAR16 *StrPtr;
1297 CHAR16 *Name;
1298 CHAR16 *Value;
1299
1300 Status = EFI_SUCCESS;
1301
1302 switch (Storage->Type) {
1303 case EFI_HII_VARSTORE_BUFFER:
1304 case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
1305 BufferSize = Storage->Size;
1306 Status = mHiiConfigRouting->ConfigToBlock (
1307 mHiiConfigRouting,
1308 ConfigResp,
1309 Storage->EditBuffer,
1310 &BufferSize,
1311 &Progress
1312 );
1313 break;
1314
1315 case EFI_HII_VARSTORE_NAME_VALUE:
1316 StrPtr = StrStr (ConfigResp, L"PATH");
1317 if (StrPtr == NULL) {
1318 break;
1319 }
1320 StrPtr = StrStr (ConfigResp, L"&");
1321 while (StrPtr != NULL) {
1322 //
1323 // Skip '&'
1324 //
1325 StrPtr = StrPtr + 1;
1326 Name = StrPtr;
1327 StrPtr = StrStr (StrPtr, L"=");
1328 if (StrPtr == NULL) {
1329 break;
1330 }
1331 *StrPtr = 0;
1332
1333 //
1334 // Skip '='
1335 //
1336 StrPtr = StrPtr + 1;
1337 Value = StrPtr;
1338 StrPtr = StrStr (StrPtr, L"&");
1339 if (StrPtr != NULL) {
1340 *StrPtr = 0;
1341 }
1342 SetValueByName (Storage, Name, Value, GetSetValueWithEditBuffer, NULL);
1343 }
1344 break;
1345
1346 case EFI_HII_VARSTORE_EFI_VARIABLE:
1347 default:
1348 Status = EFI_INVALID_PARAMETER;
1349 break;
1350 }
1351
1352 return Status;
1353 }
1354
1355 /**
1356 Convert the buffer value to HiiValue.
1357
1358 @param Question The question.
1359 @param Value Unicode buffer save the question value.
1360
1361 @retval Status whether convert the value success.
1362
1363 **/
1364 EFI_STATUS
1365 BufferToValue (
1366 IN OUT FORM_BROWSER_STATEMENT *Question,
1367 IN CHAR16 *Value
1368 )
1369 {
1370 CHAR16 *StringPtr;
1371 BOOLEAN IsBufferStorage;
1372 CHAR16 *DstBuf;
1373 CHAR16 TempChar;
1374 UINTN LengthStr;
1375 UINT8 *Dst;
1376 CHAR16 TemStr[5];
1377 UINTN Index;
1378 UINT8 DigitUint8;
1379 BOOLEAN IsString;
1380 UINTN Length;
1381 EFI_STATUS Status;
1382
1383 IsString = (BOOLEAN) ((Question->HiiValue.Type == EFI_IFR_TYPE_STRING) ? TRUE : FALSE);
1384 if (Question->Storage->Type == EFI_HII_VARSTORE_BUFFER ||
1385 Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
1386 IsBufferStorage = TRUE;
1387 } else {
1388 IsBufferStorage = FALSE;
1389 }
1390
1391 //
1392 // Question Value is provided by Buffer Storage or NameValue Storage
1393 //
1394 if (Question->BufferValue != NULL) {
1395 //
1396 // This Question is password or orderedlist
1397 //
1398 Dst = Question->BufferValue;
1399 } else {
1400 //
1401 // Other type of Questions
1402 //
1403 Dst = (UINT8 *) &Question->HiiValue.Value;
1404 }
1405
1406 //
1407 // Temp cut at the end of this section, end with '\0' or '&'.
1408 //
1409 StringPtr = Value;
1410 while (*StringPtr != L'\0' && *StringPtr != L'&') {
1411 StringPtr++;
1412 }
1413 TempChar = *StringPtr;
1414 *StringPtr = L'\0';
1415
1416 LengthStr = StrLen (Value);
1417 Status = EFI_SUCCESS;
1418 if (!IsBufferStorage && IsString) {
1419 //
1420 // Convert Config String to Unicode String, e.g "0041004200430044" => "ABCD"
1421 // Add string tail char L'\0' into Length
1422 //
1423 Length = Question->StorageWidth + sizeof (CHAR16);
1424 if (Length < ((LengthStr / 4 + 1) * 2)) {
1425 Status = EFI_BUFFER_TOO_SMALL;
1426 } else {
1427 DstBuf = (CHAR16 *) Dst;
1428 ZeroMem (TemStr, sizeof (TemStr));
1429 for (Index = 0; Index < LengthStr; Index += 4) {
1430 StrnCpy (TemStr, Value + Index, 4);
1431 DstBuf[Index/4] = (CHAR16) StrHexToUint64 (TemStr);
1432 }
1433 //
1434 // Add tailing L'\0' character
1435 //
1436 DstBuf[Index/4] = L'\0';
1437 }
1438 } else {
1439 if (Question->StorageWidth < ((LengthStr + 1) / 2)) {
1440 Status = EFI_BUFFER_TOO_SMALL;
1441 } else {
1442 ZeroMem (TemStr, sizeof (TemStr));
1443 for (Index = 0; Index < LengthStr; Index ++) {
1444 TemStr[0] = Value[LengthStr - Index - 1];
1445 DigitUint8 = (UINT8) StrHexToUint64 (TemStr);
1446 if ((Index & 1) == 0) {
1447 Dst [Index/2] = DigitUint8;
1448 } else {
1449 Dst [Index/2] = (UINT8) ((DigitUint8 << 4) + Dst [Index/2]);
1450 }
1451 }
1452 }
1453 }
1454
1455 *StringPtr = TempChar;
1456
1457 return Status;
1458 }
1459
1460 /**
1461 Get Question's current Value.
1462
1463 @param FormSet FormSet data structure.
1464 @param Form Form data structure.
1465 @param Question Question to be initialized.
1466 @param GetValueFrom Where to get value, may from editbuffer, buffer or hii driver.
1467
1468 @retval EFI_SUCCESS The function completed successfully.
1469
1470 **/
1471 EFI_STATUS
1472 GetQuestionValue (
1473 IN FORM_BROWSER_FORMSET *FormSet,
1474 IN FORM_BROWSER_FORM *Form,
1475 IN OUT FORM_BROWSER_STATEMENT *Question,
1476 IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
1477 )
1478 {
1479 EFI_STATUS Status;
1480 BOOLEAN Enabled;
1481 BOOLEAN Pending;
1482 UINT8 *Dst;
1483 UINTN StorageWidth;
1484 EFI_TIME EfiTime;
1485 BROWSER_STORAGE *Storage;
1486 FORMSET_STORAGE *FormsetStorage;
1487 EFI_IFR_TYPE_VALUE *QuestionValue;
1488 CHAR16 *ConfigRequest;
1489 CHAR16 *Progress;
1490 CHAR16 *Result;
1491 CHAR16 *Value;
1492 UINTN Length;
1493 BOOLEAN IsBufferStorage;
1494
1495 Status = EFI_SUCCESS;
1496 Value = NULL;
1497 Result = NULL;
1498
1499 if (GetValueFrom >= GetSetValueWithMax) {
1500 return EFI_INVALID_PARAMETER;
1501 }
1502
1503 //
1504 // Question value is provided by an Expression, evaluate it
1505 //
1506 if (Question->ValueExpression != NULL) {
1507 Status = EvaluateExpression (FormSet, Form, Question->ValueExpression);
1508 if (!EFI_ERROR (Status)) {
1509 if (Question->ValueExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
1510 ASSERT (Question->HiiValue.Type == EFI_IFR_TYPE_BUFFER && Question->HiiValue.Buffer != NULL);
1511 if (Question->StorageWidth > Question->ValueExpression->Result.BufferLen) {
1512 CopyMem (Question->HiiValue.Buffer, Question->ValueExpression->Result.Buffer, Question->ValueExpression->Result.BufferLen);
1513 Question->HiiValue.BufferLen = Question->ValueExpression->Result.BufferLen;
1514 } else {
1515 CopyMem (Question->HiiValue.Buffer, Question->ValueExpression->Result.Buffer, Question->StorageWidth);
1516 Question->HiiValue.BufferLen = Question->StorageWidth;
1517 }
1518 FreePool (Question->ValueExpression->Result.Buffer);
1519 }
1520 Question->HiiValue.Type = Question->ValueExpression->Result.Type;
1521 CopyMem (&Question->HiiValue.Value, &Question->ValueExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
1522 }
1523 return Status;
1524 }
1525
1526 //
1527 // Get question value by read expression.
1528 //
1529 if (Question->ReadExpression != NULL && Form->FormType == STANDARD_MAP_FORM_TYPE) {
1530 Status = EvaluateExpression (FormSet, Form, Question->ReadExpression);
1531 if (!EFI_ERROR (Status) &&
1532 ((Question->ReadExpression->Result.Type < EFI_IFR_TYPE_OTHER) || (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER))) {
1533 //
1534 // Only update question value to the valid result.
1535 //
1536 if (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
1537 ASSERT (Question->HiiValue.Type == EFI_IFR_TYPE_BUFFER && Question->HiiValue.Buffer != NULL);
1538 if (Question->StorageWidth > Question->ReadExpression->Result.BufferLen) {
1539 CopyMem (Question->HiiValue.Buffer, Question->ReadExpression->Result.Buffer, Question->ReadExpression->Result.BufferLen);
1540 Question->HiiValue.BufferLen = Question->ReadExpression->Result.BufferLen;
1541 } else {
1542 CopyMem (Question->HiiValue.Buffer, Question->ReadExpression->Result.Buffer, Question->StorageWidth);
1543 Question->HiiValue.BufferLen = Question->StorageWidth;
1544 }
1545 FreePool (Question->ReadExpression->Result.Buffer);
1546 }
1547 Question->HiiValue.Type = Question->ReadExpression->Result.Type;
1548 CopyMem (&Question->HiiValue.Value, &Question->ReadExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
1549 return EFI_SUCCESS;
1550 }
1551 }
1552
1553 //
1554 // Question value is provided by RTC
1555 //
1556 Storage = Question->Storage;
1557 QuestionValue = &Question->HiiValue.Value;
1558 if (Storage == NULL) {
1559 //
1560 // It's a Question without storage, or RTC date/time
1561 //
1562 if (Question->Operand == EFI_IFR_DATE_OP || Question->Operand == EFI_IFR_TIME_OP) {
1563 //
1564 // Date and time define the same Flags bit
1565 //
1566 switch (Question->Flags & EFI_QF_DATE_STORAGE) {
1567 case QF_DATE_STORAGE_TIME:
1568 Status = gRT->GetTime (&EfiTime, NULL);
1569 break;
1570
1571 case QF_DATE_STORAGE_WAKEUP:
1572 Status = gRT->GetWakeupTime (&Enabled, &Pending, &EfiTime);
1573 break;
1574
1575 case QF_DATE_STORAGE_NORMAL:
1576 default:
1577 //
1578 // For date/time without storage
1579 //
1580 return EFI_SUCCESS;
1581 }
1582
1583 if (EFI_ERROR (Status)) {
1584 return Status;
1585 }
1586
1587 if (Question->Operand == EFI_IFR_DATE_OP) {
1588 QuestionValue->date.Year = EfiTime.Year;
1589 QuestionValue->date.Month = EfiTime.Month;
1590 QuestionValue->date.Day = EfiTime.Day;
1591 } else {
1592 QuestionValue->time.Hour = EfiTime.Hour;
1593 QuestionValue->time.Minute = EfiTime.Minute;
1594 QuestionValue->time.Second = EfiTime.Second;
1595 }
1596 }
1597
1598 return EFI_SUCCESS;
1599 }
1600
1601 //
1602 // Question value is provided by EFI variable
1603 //
1604 StorageWidth = Question->StorageWidth;
1605 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
1606 if (Question->BufferValue != NULL) {
1607 Dst = Question->BufferValue;
1608 } else {
1609 Dst = (UINT8 *) QuestionValue;
1610 }
1611
1612 Status = gRT->GetVariable (
1613 Question->VariableName,
1614 &Storage->Guid,
1615 NULL,
1616 &StorageWidth,
1617 Dst
1618 );
1619 //
1620 // Always return success, even this EFI variable doesn't exist
1621 //
1622 return EFI_SUCCESS;
1623 }
1624
1625 //
1626 // Question Value is provided by Buffer Storage or NameValue Storage
1627 //
1628 if (Question->BufferValue != NULL) {
1629 //
1630 // This Question is password or orderedlist
1631 //
1632 Dst = Question->BufferValue;
1633 } else {
1634 //
1635 // Other type of Questions
1636 //
1637 Dst = (UINT8 *) &Question->HiiValue.Value;
1638 }
1639
1640 if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
1641 Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
1642 IsBufferStorage = TRUE;
1643 } else {
1644 IsBufferStorage = FALSE;
1645 }
1646 if (GetValueFrom == GetSetValueWithEditBuffer || GetValueFrom == GetSetValueWithBuffer ) {
1647 if (IsBufferStorage) {
1648 if (GetValueFrom == GetSetValueWithEditBuffer) {
1649 //
1650 // Copy from storage Edit buffer
1651 //
1652 CopyMem (Dst, Storage->EditBuffer + Question->VarStoreInfo.VarOffset, StorageWidth);
1653 } else {
1654 //
1655 // Copy from storage Edit buffer
1656 //
1657 CopyMem (Dst, Storage->Buffer + Question->VarStoreInfo.VarOffset, StorageWidth);
1658 }
1659 } else {
1660 Value = NULL;
1661 Status = GetValueByName (Storage, Question->VariableName, &Value, GetValueFrom);
1662 if (EFI_ERROR (Status)) {
1663 return Status;
1664 }
1665
1666 ASSERT (Value != NULL);
1667 Status = BufferToValue (Question, Value);
1668 FreePool (Value);
1669 }
1670 } else {
1671 FormsetStorage = GetFstStgFromVarId(FormSet, Question->VarStoreId);
1672 ASSERT (FormsetStorage != NULL);
1673 //
1674 // <ConfigRequest> ::= <ConfigHdr> + <BlockName> ||
1675 // <ConfigHdr> + "&" + <VariableName>
1676 //
1677 if (IsBufferStorage) {
1678 Length = StrLen (FormsetStorage->ConfigHdr);
1679 Length += StrLen (Question->BlockName);
1680 } else {
1681 Length = StrLen (FormsetStorage->ConfigHdr);
1682 Length += StrLen (Question->VariableName) + 1;
1683 }
1684 ConfigRequest = AllocateZeroPool ((Length + 1) * sizeof (CHAR16));
1685 ASSERT (ConfigRequest != NULL);
1686
1687 StrCpy (ConfigRequest, FormsetStorage->ConfigHdr);
1688 if (IsBufferStorage) {
1689 StrCat (ConfigRequest, Question->BlockName);
1690 } else {
1691 StrCat (ConfigRequest, L"&");
1692 StrCat (ConfigRequest, Question->VariableName);
1693 }
1694
1695 //
1696 // Request current settings from Configuration Driver
1697 //
1698 Status = mHiiConfigRouting->ExtractConfig (
1699 mHiiConfigRouting,
1700 ConfigRequest,
1701 &Progress,
1702 &Result
1703 );
1704 FreePool (ConfigRequest);
1705 if (EFI_ERROR (Status)) {
1706 return Status;
1707 }
1708
1709 //
1710 // Skip <ConfigRequest>
1711 //
1712 if (IsBufferStorage) {
1713 Value = StrStr (Result, L"&VALUE");
1714 if (Value == NULL) {
1715 FreePool (Result);
1716 return EFI_NOT_FOUND;
1717 }
1718 //
1719 // Skip "&VALUE"
1720 //
1721 Value = Value + 6;
1722 } else {
1723 Value = Result + Length;
1724 }
1725 if (*Value != '=') {
1726 FreePool (Result);
1727 return EFI_NOT_FOUND;
1728 }
1729 //
1730 // Skip '=', point to value
1731 //
1732 Value = Value + 1;
1733
1734 Status = BufferToValue (Question, Value);
1735 if (EFI_ERROR (Status)) {
1736 FreePool (Result);
1737 return Status;
1738 }
1739
1740 //
1741 // Synchronize Edit Buffer
1742 //
1743 if (IsBufferStorage) {
1744 CopyMem (Storage->EditBuffer + Question->VarStoreInfo.VarOffset, Dst, StorageWidth);
1745 } else {
1746 SetValueByName (Storage, Question->VariableName, Value, GetSetValueWithEditBuffer, NULL);
1747 }
1748
1749 if (Result != NULL) {
1750 FreePool (Result);
1751 }
1752 }
1753
1754 return Status;
1755 }
1756
1757
1758 /**
1759 Save Question Value to edit copy(cached) or Storage(uncached).
1760
1761 @param FormSet FormSet data structure.
1762 @param Form Form data structure.
1763 @param Question Pointer to the Question.
1764 @param SetValueTo Update the question value to editbuffer , buffer or hii driver.
1765
1766 @retval EFI_SUCCESS The function completed successfully.
1767
1768 **/
1769 EFI_STATUS
1770 SetQuestionValue (
1771 IN FORM_BROWSER_FORMSET *FormSet,
1772 IN FORM_BROWSER_FORM *Form,
1773 IN OUT FORM_BROWSER_STATEMENT *Question,
1774 IN GET_SET_QUESTION_VALUE_WITH SetValueTo
1775 )
1776 {
1777 EFI_STATUS Status;
1778 BOOLEAN Enabled;
1779 BOOLEAN Pending;
1780 UINT8 *Src;
1781 EFI_TIME EfiTime;
1782 UINTN BufferLen;
1783 UINTN StorageWidth;
1784 BROWSER_STORAGE *Storage;
1785 FORMSET_STORAGE *FormsetStorage;
1786 EFI_IFR_TYPE_VALUE *QuestionValue;
1787 CHAR16 *ConfigResp;
1788 CHAR16 *Progress;
1789 CHAR16 *Value;
1790 UINTN Length;
1791 BOOLEAN IsBufferStorage;
1792 BOOLEAN IsString;
1793 UINT8 *TemBuffer;
1794 CHAR16 *TemName;
1795 CHAR16 *TemString;
1796 UINTN Index;
1797 NAME_VALUE_NODE *Node;
1798
1799 Status = EFI_SUCCESS;
1800 Node = NULL;
1801
1802 if (SetValueTo >= GetSetValueWithMax) {
1803 return EFI_INVALID_PARAMETER;
1804 }
1805
1806 //
1807 // If Question value is provided by an Expression, then it is read only
1808 //
1809 if (Question->ValueExpression != NULL) {
1810 return Status;
1811 }
1812
1813 //
1814 // Before set question value, evaluate its write expression.
1815 //
1816 if (Question->WriteExpression != NULL && Form->FormType == STANDARD_MAP_FORM_TYPE) {
1817 Status = EvaluateExpression (FormSet, Form, Question->WriteExpression);
1818 if (EFI_ERROR (Status)) {
1819 return Status;
1820 }
1821 }
1822
1823 //
1824 // Question value is provided by RTC
1825 //
1826 Storage = Question->Storage;
1827 QuestionValue = &Question->HiiValue.Value;
1828 if (Storage == NULL) {
1829 //
1830 // It's a Question without storage, or RTC date/time
1831 //
1832 if (Question->Operand == EFI_IFR_DATE_OP || Question->Operand == EFI_IFR_TIME_OP) {
1833 //
1834 // Date and time define the same Flags bit
1835 //
1836 switch (Question->Flags & EFI_QF_DATE_STORAGE) {
1837 case QF_DATE_STORAGE_TIME:
1838 Status = gRT->GetTime (&EfiTime, NULL);
1839 break;
1840
1841 case QF_DATE_STORAGE_WAKEUP:
1842 Status = gRT->GetWakeupTime (&Enabled, &Pending, &EfiTime);
1843 break;
1844
1845 case QF_DATE_STORAGE_NORMAL:
1846 default:
1847 //
1848 // For date/time without storage
1849 //
1850 return EFI_SUCCESS;
1851 }
1852
1853 if (EFI_ERROR (Status)) {
1854 return Status;
1855 }
1856
1857 if (Question->Operand == EFI_IFR_DATE_OP) {
1858 EfiTime.Year = QuestionValue->date.Year;
1859 EfiTime.Month = QuestionValue->date.Month;
1860 EfiTime.Day = QuestionValue->date.Day;
1861 } else {
1862 EfiTime.Hour = QuestionValue->time.Hour;
1863 EfiTime.Minute = QuestionValue->time.Minute;
1864 EfiTime.Second = QuestionValue->time.Second;
1865 }
1866
1867 if ((Question->Flags & EFI_QF_DATE_STORAGE) == QF_DATE_STORAGE_TIME) {
1868 Status = gRT->SetTime (&EfiTime);
1869 } else {
1870 Status = gRT->SetWakeupTime (TRUE, &EfiTime);
1871 }
1872 }
1873
1874 return Status;
1875 }
1876
1877 //
1878 // Question value is provided by EFI variable
1879 //
1880 StorageWidth = Question->StorageWidth;
1881 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
1882 if (Question->BufferValue != NULL) {
1883 Src = Question->BufferValue;
1884 } else {
1885 Src = (UINT8 *) QuestionValue;
1886 }
1887
1888 Status = gRT->SetVariable (
1889 Question->VariableName,
1890 &Storage->Guid,
1891 Storage->Attributes,
1892 StorageWidth,
1893 Src
1894 );
1895 return Status;
1896 }
1897
1898 //
1899 // Question Value is provided by Buffer Storage or NameValue Storage
1900 //
1901 if (Question->BufferValue != NULL) {
1902 Src = Question->BufferValue;
1903 } else {
1904 Src = (UINT8 *) &Question->HiiValue.Value;
1905 }
1906
1907 if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
1908 Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
1909 IsBufferStorage = TRUE;
1910 } else {
1911 IsBufferStorage = FALSE;
1912 }
1913 IsString = (BOOLEAN) ((Question->HiiValue.Type == EFI_IFR_TYPE_STRING) ? TRUE : FALSE);
1914
1915 if (SetValueTo == GetSetValueWithEditBuffer || SetValueTo == GetSetValueWithBuffer) {
1916 if (IsBufferStorage) {
1917 if (SetValueTo == GetSetValueWithEditBuffer) {
1918 //
1919 // Copy to storage edit buffer
1920 //
1921 CopyMem (Storage->EditBuffer + Question->VarStoreInfo.VarOffset, Src, StorageWidth);
1922 } else if (SetValueTo == GetSetValueWithBuffer) {
1923 //
1924 // Copy to storage edit buffer
1925 //
1926 CopyMem (Storage->Buffer + Question->VarStoreInfo.VarOffset, Src, StorageWidth);
1927 }
1928 } else {
1929 if (IsString) {
1930 //
1931 // Allocate enough string buffer.
1932 //
1933 Value = NULL;
1934 BufferLen = ((StrLen ((CHAR16 *) Src) * 4) + 1) * sizeof (CHAR16);
1935 Value = AllocateZeroPool (BufferLen);
1936 ASSERT (Value != NULL);
1937 //
1938 // Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"
1939 //
1940 TemName = (CHAR16 *) Src;
1941 TemString = Value;
1942 for (; *TemName != L'\0'; TemName++) {
1943 TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemName, 4);
1944 }
1945 } else {
1946 BufferLen = StorageWidth * 2 + 1;
1947 Value = AllocateZeroPool (BufferLen * sizeof (CHAR16));
1948 ASSERT (Value != NULL);
1949 //
1950 // Convert Buffer to Hex String
1951 //
1952 TemBuffer = Src + StorageWidth - 1;
1953 TemString = Value;
1954 for (Index = 0; Index < StorageWidth; Index ++, TemBuffer --) {
1955 TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemBuffer, 2);
1956 }
1957 }
1958
1959 Status = SetValueByName (Storage, Question->VariableName, Value, SetValueTo, &Node);
1960 FreePool (Value);
1961 if (EFI_ERROR (Status)) {
1962 return Status;
1963 }
1964 }
1965 } else if (SetValueTo == GetSetValueWithHiiDriver) {
1966 //
1967 // <ConfigResp> ::= <ConfigHdr> + <BlockName> + "&VALUE=" + "<HexCh>StorageWidth * 2" ||
1968 // <ConfigHdr> + "&" + <VariableName> + "=" + "<string>"
1969 //
1970 if (IsBufferStorage) {
1971 Length = StrLen (Question->BlockName) + 7;
1972 } else {
1973 Length = StrLen (Question->VariableName) + 2;
1974 }
1975 if (!IsBufferStorage && IsString) {
1976 Length += (StrLen ((CHAR16 *) Src) * 4);
1977 } else {
1978 Length += (StorageWidth * 2);
1979 }
1980 FormsetStorage = GetFstStgFromVarId(FormSet, Question->VarStoreId);
1981 ASSERT (FormsetStorage != NULL);
1982 ConfigResp = AllocateZeroPool ((StrLen (FormsetStorage->ConfigHdr) + Length + 1) * sizeof (CHAR16));
1983 ASSERT (ConfigResp != NULL);
1984
1985 StrCpy (ConfigResp, FormsetStorage->ConfigHdr);
1986 if (IsBufferStorage) {
1987 StrCat (ConfigResp, Question->BlockName);
1988 StrCat (ConfigResp, L"&VALUE=");
1989 } else {
1990 StrCat (ConfigResp, L"&");
1991 StrCat (ConfigResp, Question->VariableName);
1992 StrCat (ConfigResp, L"=");
1993 }
1994
1995 Value = ConfigResp + StrLen (ConfigResp);
1996
1997 if (!IsBufferStorage && IsString) {
1998 //
1999 // Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"
2000 //
2001 TemName = (CHAR16 *) Src;
2002 TemString = Value;
2003 for (; *TemName != L'\0'; TemName++) {
2004 TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemName, 4);
2005 }
2006 } else {
2007 //
2008 // Convert Buffer to Hex String
2009 //
2010 TemBuffer = Src + StorageWidth - 1;
2011 TemString = Value;
2012 for (Index = 0; Index < StorageWidth; Index ++, TemBuffer --) {
2013 TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemBuffer, 2);
2014 }
2015 }
2016
2017 //
2018 // Convert to lower char.
2019 //
2020 for (TemString = Value; *Value != L'\0'; Value++) {
2021 if (*Value >= L'A' && *Value <= L'Z') {
2022 *Value = (CHAR16) (*Value - L'A' + L'a');
2023 }
2024 }
2025
2026 //
2027 // Submit Question Value to Configuration Driver
2028 //
2029 Status = mHiiConfigRouting->RouteConfig (
2030 mHiiConfigRouting,
2031 ConfigResp,
2032 &Progress
2033 );
2034 if (EFI_ERROR (Status)) {
2035 FreePool (ConfigResp);
2036 return Status;
2037 }
2038 FreePool (ConfigResp);
2039
2040 //
2041 // Sync storage, from editbuffer to buffer.
2042 //
2043 CopyMem (Storage->Buffer + Question->VarStoreInfo.VarOffset, Src, StorageWidth);
2044 }
2045
2046 return Status;
2047 }
2048
2049
2050 /**
2051 Perform nosubmitif check for a Form.
2052
2053 @param FormSet FormSet data structure.
2054 @param Form Form data structure.
2055 @param Question The Question to be validated.
2056 @param Type Validation type: NoSubmit
2057
2058 @retval EFI_SUCCESS Form validation pass.
2059 @retval other Form validation failed.
2060
2061 **/
2062 EFI_STATUS
2063 ValidateQuestion (
2064 IN FORM_BROWSER_FORMSET *FormSet,
2065 IN FORM_BROWSER_FORM *Form,
2066 IN FORM_BROWSER_STATEMENT *Question,
2067 IN UINTN Type
2068 )
2069 {
2070 EFI_STATUS Status;
2071 LIST_ENTRY *Link;
2072 LIST_ENTRY *ListHead;
2073 FORM_EXPRESSION *Expression;
2074 UINT32 BrowserStatus;
2075 CHAR16 *ErrorStr;
2076
2077 BrowserStatus = BROWSER_SUCCESS;
2078 ErrorStr = NULL;
2079
2080 switch (Type) {
2081 case EFI_HII_EXPRESSION_INCONSISTENT_IF:
2082 ListHead = &Question->InconsistentListHead;
2083 break;
2084
2085 case EFI_HII_EXPRESSION_WARNING_IF:
2086 ListHead = &Question->WarningListHead;
2087 break;
2088
2089 case EFI_HII_EXPRESSION_NO_SUBMIT_IF:
2090 ListHead = &Question->NoSubmitListHead;
2091 break;
2092
2093 default:
2094 ASSERT (FALSE);
2095 return EFI_UNSUPPORTED;
2096 }
2097
2098 Link = GetFirstNode (ListHead);
2099 while (!IsNull (ListHead, Link)) {
2100 Expression = FORM_EXPRESSION_FROM_LINK (Link);
2101
2102 //
2103 // Evaluate the expression
2104 //
2105 Status = EvaluateExpression (FormSet, Form, Expression);
2106 if (EFI_ERROR (Status)) {
2107 return Status;
2108 }
2109
2110 if (IsTrue (&Expression->Result)) {
2111 switch (Type) {
2112 case EFI_HII_EXPRESSION_INCONSISTENT_IF:
2113 BrowserStatus = BROWSER_INCONSISTENT_IF;
2114 break;
2115
2116 case EFI_HII_EXPRESSION_WARNING_IF:
2117 BrowserStatus = BROWSER_WARNING_IF;
2118 break;
2119
2120 case EFI_HII_EXPRESSION_NO_SUBMIT_IF:
2121 BrowserStatus = BROWSER_NO_SUBMIT_IF;
2122 //
2123 // This code only used to compatible with old display engine,
2124 // New display engine will not use this field.
2125 //
2126 if (Expression->Error != 0) {
2127 ErrorStr = GetToken (Expression->Error, FormSet->HiiHandle);
2128 }
2129 break;
2130
2131 default:
2132 ASSERT (FALSE);
2133 break;
2134 }
2135
2136 if (!((Type == EFI_HII_EXPRESSION_NO_SUBMIT_IF) && mSystemSubmit)) {
2137 //
2138 // If in system submit process and for no_submit_if check, not popup this error message.
2139 // Will process this fail again later in not system submit process.
2140 //
2141 PopupErrorMessage(BrowserStatus, FormSet->HiiHandle, Expression->OpCode, ErrorStr);
2142 }
2143
2144 if (ErrorStr != NULL) {
2145 FreePool (ErrorStr);
2146 }
2147
2148 if (Type == EFI_HII_EXPRESSION_WARNING_IF) {
2149 return EFI_SUCCESS;
2150 } else {
2151 return EFI_NOT_READY;
2152 }
2153 }
2154
2155 Link = GetNextNode (ListHead, Link);
2156 }
2157
2158 return EFI_SUCCESS;
2159 }
2160
2161 /**
2162 Perform question check.
2163
2164 If one question has more than one check, process form high priority to low.
2165 Only one error info will be popup.
2166
2167 @param FormSet FormSet data structure.
2168 @param Form Form data structure.
2169 @param Question The Question to be validated.
2170
2171 @retval EFI_SUCCESS Form validation pass.
2172 @retval other Form validation failed.
2173
2174 **/
2175 EFI_STATUS
2176 ValueChangedValidation (
2177 IN FORM_BROWSER_FORMSET *FormSet,
2178 IN FORM_BROWSER_FORM *Form,
2179 IN FORM_BROWSER_STATEMENT *Question
2180 )
2181 {
2182 EFI_STATUS Status;
2183
2184 Status = EFI_SUCCESS;
2185
2186 //
2187 // Do the inconsistentif check.
2188 //
2189 if (!IsListEmpty (&Question->InconsistentListHead)) {
2190 Status = ValidateQuestion (FormSet, Form, Question, EFI_HII_EXPRESSION_INCONSISTENT_IF);
2191 if (EFI_ERROR (Status)) {
2192 return Status;
2193 }
2194 }
2195
2196 //
2197 // Do the warningif check.
2198 //
2199 if (!IsListEmpty (&Question->WarningListHead)) {
2200 Status = ValidateQuestion (FormSet, Form, Question, EFI_HII_EXPRESSION_WARNING_IF);
2201 }
2202
2203 return Status;
2204 }
2205
2206 /**
2207 Perform NoSubmit check for each Form in FormSet.
2208
2209 @param FormSet FormSet data structure.
2210 @param CurrentForm Current input form data structure.
2211 @param Statement The statement for this check.
2212
2213 @retval EFI_SUCCESS Form validation pass.
2214 @retval other Form validation failed.
2215
2216 **/
2217 EFI_STATUS
2218 NoSubmitCheck (
2219 IN FORM_BROWSER_FORMSET *FormSet,
2220 IN OUT FORM_BROWSER_FORM **CurrentForm,
2221 OUT FORM_BROWSER_STATEMENT **Statement
2222 )
2223 {
2224 EFI_STATUS Status;
2225 LIST_ENTRY *Link;
2226 FORM_BROWSER_STATEMENT *Question;
2227 FORM_BROWSER_FORM *Form;
2228 LIST_ENTRY *LinkForm;
2229
2230 LinkForm = GetFirstNode (&FormSet->FormListHead);
2231 while (!IsNull (&FormSet->FormListHead, LinkForm)) {
2232 Form = FORM_BROWSER_FORM_FROM_LINK (LinkForm);
2233 LinkForm = GetNextNode (&FormSet->FormListHead, LinkForm);
2234
2235 if (*CurrentForm != NULL && *CurrentForm != Form) {
2236 continue;
2237 }
2238
2239 Link = GetFirstNode (&Form->StatementListHead);
2240 while (!IsNull (&Form->StatementListHead, Link)) {
2241 Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
2242 Status = ValidateQuestion (FormSet, Form, Question, EFI_HII_EXPRESSION_NO_SUBMIT_IF);
2243 if (EFI_ERROR (Status)) {
2244 if (*CurrentForm == NULL) {
2245 *CurrentForm = Form;
2246 }
2247 if (Statement != NULL) {
2248 *Statement = Question;
2249 }
2250 return Status;
2251 }
2252
2253 Link = GetNextNode (&Form->StatementListHead, Link);
2254 }
2255 }
2256
2257 return EFI_SUCCESS;
2258 }
2259
2260 /**
2261 Fill storage's edit copy with settings requested from Configuration Driver.
2262
2263 @param Storage The storage which need to sync.
2264 @param ConfigRequest The config request string which used to sync storage.
2265 @param SyncOrRestore Sync the buffer to editbuffer or Restore the
2266 editbuffer to buffer
2267 if TRUE, copy the editbuffer to the buffer.
2268 if FALSE, copy the buffer to the editbuffer.
2269
2270 @retval EFI_SUCCESS The function completed successfully.
2271
2272 **/
2273 EFI_STATUS
2274 SynchronizeStorage (
2275 OUT BROWSER_STORAGE *Storage,
2276 IN CHAR16 *ConfigRequest,
2277 IN BOOLEAN SyncOrRestore
2278 )
2279 {
2280 EFI_STATUS Status;
2281 EFI_STRING Progress;
2282 EFI_STRING Result;
2283 UINTN BufferSize;
2284 LIST_ENTRY *Link;
2285 NAME_VALUE_NODE *Node;
2286 UINT8 *Src;
2287 UINT8 *Dst;
2288
2289 Status = EFI_SUCCESS;
2290 Result = NULL;
2291
2292 if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
2293 (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
2294 BufferSize = Storage->Size;
2295
2296 if (SyncOrRestore) {
2297 Src = Storage->EditBuffer;
2298 Dst = Storage->Buffer;
2299 } else {
2300 Src = Storage->Buffer;
2301 Dst = Storage->EditBuffer;
2302 }
2303
2304 if (ConfigRequest != NULL) {
2305 Status = mHiiConfigRouting->BlockToConfig(
2306 mHiiConfigRouting,
2307 ConfigRequest,
2308 Src,
2309 BufferSize,
2310 &Result,
2311 &Progress
2312 );
2313 if (EFI_ERROR (Status)) {
2314 return Status;
2315 }
2316
2317 Status = mHiiConfigRouting->ConfigToBlock (
2318 mHiiConfigRouting,
2319 Result,
2320 Dst,
2321 &BufferSize,
2322 &Progress
2323 );
2324 if (Result != NULL) {
2325 FreePool (Result);
2326 }
2327 } else {
2328 CopyMem (Dst, Src, BufferSize);
2329 }
2330 } else if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
2331 Link = GetFirstNode (&Storage->NameValueListHead);
2332 while (!IsNull (&Storage->NameValueListHead, Link)) {
2333 Node = NAME_VALUE_NODE_FROM_LINK (Link);
2334
2335 if ((ConfigRequest != NULL && StrStr (ConfigRequest, Node->Name) != NULL) ||
2336 (ConfigRequest == NULL)) {
2337 if (SyncOrRestore) {
2338 NewStringCpy (&Node->Value, Node->EditValue);
2339 } else {
2340 NewStringCpy (&Node->EditValue, Node->Value);
2341 }
2342 }
2343
2344 Link = GetNextNode (&Storage->NameValueListHead, Link);
2345 }
2346 }
2347
2348 return Status;
2349 }
2350
2351 /**
2352 When discard the question value, call the callback function with Changed type
2353 to inform the hii driver.
2354
2355 @param FormSet FormSet data structure.
2356 @param Form Form data structure.
2357
2358 **/
2359 VOID
2360 SendDiscardInfoToDriver (
2361 IN FORM_BROWSER_FORMSET *FormSet,
2362 IN FORM_BROWSER_FORM *Form
2363 )
2364 {
2365 LIST_ENTRY *Link;
2366 FORM_BROWSER_STATEMENT *Question;
2367 EFI_IFR_TYPE_VALUE *TypeValue;
2368 EFI_BROWSER_ACTION_REQUEST ActionRequest;
2369
2370 if (FormSet->ConfigAccess == NULL) {
2371 return;
2372 }
2373
2374 Link = GetFirstNode (&Form->StatementListHead);
2375 while (!IsNull (&Form->StatementListHead, Link)) {
2376 Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
2377 Link = GetNextNode (&Form->StatementListHead, Link);
2378
2379 if (Question->Storage == NULL || Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
2380 continue;
2381 }
2382
2383 if ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != EFI_IFR_FLAG_CALLBACK) {
2384 continue;
2385 }
2386
2387 if (Question->Operand == EFI_IFR_PASSWORD_OP) {
2388 continue;
2389 }
2390
2391 if (!Question->ValueChanged) {
2392 continue;
2393 }
2394
2395 //
2396 // Restore the question value before call the CHANGED callback type.
2397 //
2398 GetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
2399
2400 if (Question->HiiValue.Type == EFI_IFR_TYPE_BUFFER) {
2401 TypeValue = (EFI_IFR_TYPE_VALUE *) Question->BufferValue;
2402 } else {
2403 TypeValue = &Question->HiiValue.Value;
2404 }
2405
2406 ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
2407 FormSet->ConfigAccess->Callback (
2408 FormSet->ConfigAccess,
2409 EFI_BROWSER_ACTION_CHANGED,
2410 Question->QuestionId,
2411 Question->HiiValue.Type,
2412 TypeValue,
2413 &ActionRequest
2414 );
2415 }
2416 }
2417
2418 /**
2419 Validate the HiiHandle.
2420
2421 @param HiiHandle The input HiiHandle which need to validate.
2422
2423 @retval TRUE The handle is validate.
2424 @retval FALSE The handle is invalidate.
2425
2426 **/
2427 BOOLEAN
2428 ValidateHiiHandle (
2429 EFI_HII_HANDLE HiiHandle
2430 )
2431 {
2432 EFI_HII_HANDLE *HiiHandles;
2433 UINTN Index;
2434 BOOLEAN Find;
2435
2436 if (HiiHandle == NULL) {
2437 return FALSE;
2438 }
2439
2440 Find = FALSE;
2441
2442 HiiHandles = HiiGetHiiHandles (NULL);
2443 ASSERT (HiiHandles != NULL);
2444
2445 for (Index = 0; HiiHandles[Index] != NULL; Index++) {
2446 if (HiiHandles[Index] == HiiHandle) {
2447 Find = TRUE;
2448 break;
2449 }
2450 }
2451
2452 FreePool (HiiHandles);
2453
2454 return Find;
2455 }
2456
2457 /**
2458 Validate the FormSet. If the formset is not validate, remove it from the list.
2459
2460 @param FormSet The input FormSet which need to validate.
2461
2462 @retval TRUE The handle is validate.
2463 @retval FALSE The handle is invalidate.
2464
2465 **/
2466 BOOLEAN
2467 ValidateFormSet (
2468 FORM_BROWSER_FORMSET *FormSet
2469 )
2470 {
2471 BOOLEAN Find;
2472
2473 ASSERT (FormSet != NULL);
2474
2475 Find = ValidateHiiHandle(FormSet->HiiHandle);
2476 //
2477 // Should not remove the formset which is being used.
2478 //
2479 if (!Find && (FormSet != gCurrentSelection->FormSet)) {
2480 CleanBrowserStorage(FormSet);
2481 RemoveEntryList (&FormSet->Link);
2482 DestroyFormSet (FormSet);
2483 }
2484
2485 return Find;
2486 }
2487 /**
2488 Check whether need to enable the reset flag in form level.
2489 Also clean all ValueChanged flag in question.
2490
2491 @param SetFlag Whether need to set the Reset Flag.
2492 @param FormSet FormSet data structure.
2493 @param Form Form data structure.
2494
2495 **/
2496 VOID
2497 UpdateFlagForForm (
2498 IN BOOLEAN SetFlag,
2499 IN FORM_BROWSER_FORMSET *FormSet,
2500 IN FORM_BROWSER_FORM *Form
2501 )
2502 {
2503 LIST_ENTRY *Link;
2504 FORM_BROWSER_STATEMENT *Question;
2505 BOOLEAN OldValue;
2506
2507 Link = GetFirstNode (&Form->StatementListHead);
2508 while (!IsNull (&Form->StatementListHead, Link)) {
2509 Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
2510 Link = GetNextNode (&Form->StatementListHead, Link);
2511
2512 if (!Question->ValueChanged) {
2513 continue;
2514 }
2515
2516 OldValue = Question->ValueChanged;
2517
2518 //
2519 // Compare the buffer and editbuffer data to see whether the data has been saved.
2520 //
2521 Question->ValueChanged = IsQuestionValueChanged(FormSet, Form, Question, GetSetValueWithBothBuffer);
2522
2523 //
2524 // Only the changed data has been saved, then need to set the reset flag.
2525 //
2526 if (SetFlag && OldValue && !Question->ValueChanged && ((Question->QuestionFlags & EFI_IFR_FLAG_RESET_REQUIRED) != 0)) {
2527 gResetRequired = TRUE;
2528 }
2529 }
2530 }
2531
2532 /**
2533 Check whether need to enable the reset flag.
2534 Also clean ValueChanged flag for all statements.
2535
2536 Form level or formset level, only one.
2537
2538 @param SetFlag Whether need to set the Reset Flag.
2539 @param FormSet FormSet data structure.
2540 @param Form Form data structure.
2541
2542 **/
2543 VOID
2544 ValueChangeResetFlagUpdate (
2545 IN BOOLEAN SetFlag,
2546 IN FORM_BROWSER_FORMSET *FormSet,
2547 IN FORM_BROWSER_FORM *Form
2548 )
2549 {
2550 FORM_BROWSER_FORM *CurrentForm;
2551 LIST_ENTRY *Link;
2552
2553 if (Form != NULL) {
2554 UpdateFlagForForm(SetFlag, FormSet, Form);
2555 return;
2556 }
2557
2558 Link = GetFirstNode (&FormSet->FormListHead);
2559 while (!IsNull (&FormSet->FormListHead, Link)) {
2560 CurrentForm = FORM_BROWSER_FORM_FROM_LINK (Link);
2561 Link = GetNextNode (&FormSet->FormListHead, Link);
2562
2563 UpdateFlagForForm(SetFlag, FormSet, CurrentForm);
2564 }
2565 }
2566
2567 /**
2568 Base on the return Progress string to find the form.
2569
2570 Base on the first return Offset/Width (Name) string to find the form
2571 which keep this string.
2572
2573 @param FormSet FormSet data structure.
2574 @param Storage Storage which has this Progress string.
2575 @param Progress The Progress string which has the first fail string.
2576 @param RetForm The return form for this progress string.
2577 @param RetQuestion The return question for the error progress string.
2578
2579 @retval TRUE Find the error form and statement for this error progress string.
2580 @retval FALSE Not find the error form.
2581
2582 **/
2583 BOOLEAN
2584 FindQuestionFromProgress (
2585 IN FORM_BROWSER_FORMSET *FormSet,
2586 IN BROWSER_STORAGE *Storage,
2587 IN EFI_STRING Progress,
2588 OUT FORM_BROWSER_FORM **RetForm,
2589 OUT FORM_BROWSER_STATEMENT **RetQuestion
2590 )
2591 {
2592 LIST_ENTRY *Link;
2593 LIST_ENTRY *LinkStorage;
2594 LIST_ENTRY *LinkStatement;
2595 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
2596 FORM_BROWSER_FORM *Form;
2597 EFI_STRING EndStr;
2598 FORM_BROWSER_STATEMENT *Statement;
2599
2600 ASSERT ((*Progress == '&') || (*Progress == 'G'));
2601
2602 ConfigInfo = NULL;
2603 *RetForm = NULL;
2604 *RetQuestion = NULL;
2605
2606 //
2607 // Skip the first "&" or the ConfigHdr part.
2608 //
2609 if (*Progress == '&') {
2610 Progress++;
2611 } else {
2612 //
2613 // Prepare the "NAME" or "OFFSET=0x####&WIDTH=0x####" string.
2614 //
2615 if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
2616 //
2617 // For Name/Value type, Skip the ConfigHdr part.
2618 //
2619 EndStr = StrStr (Progress, L"PATH=");
2620 ASSERT (EndStr != NULL);
2621 while (*EndStr != '&') {
2622 EndStr++;
2623 }
2624
2625 *EndStr = '\0';
2626 } else {
2627 //
2628 // For Buffer type, Skip the ConfigHdr part.
2629 //
2630 EndStr = StrStr (Progress, L"&OFFSET=");
2631 ASSERT (EndStr != NULL);
2632 *EndStr = '\0';
2633 }
2634
2635 Progress = EndStr + 1;
2636 }
2637
2638 //
2639 // Prepare the "NAME" or "OFFSET=0x####&WIDTH=0x####" string.
2640 //
2641 if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
2642 //
2643 // For Name/Value type, the data is "&Fred=16&George=16&Ron=12" formset,
2644 // here, just keep the "Fred" string.
2645 //
2646 EndStr = StrStr (Progress, L"=");
2647 ASSERT (EndStr != NULL);
2648 *EndStr = '\0';
2649 } else {
2650 //
2651 // For Buffer type, the data is "OFFSET=0x####&WIDTH=0x####&VALUE=0x####",
2652 // here, just keep the "OFFSET=0x####&WIDTH=0x####" string.
2653 //
2654 EndStr = StrStr (Progress, L"&VALUE=");
2655 ASSERT (EndStr != NULL);
2656 *EndStr = '\0';
2657 }
2658
2659 //
2660 // Search in the form list.
2661 //
2662 Link = GetFirstNode (&FormSet->FormListHead);
2663 while (!IsNull (&FormSet->FormListHead, Link)) {
2664 Form = FORM_BROWSER_FORM_FROM_LINK (Link);
2665 Link = GetNextNode (&FormSet->FormListHead, Link);
2666
2667 //
2668 // Search in the ConfigReqeust list in this form.
2669 //
2670 LinkStorage = GetFirstNode (&Form->ConfigRequestHead);
2671 while (!IsNull (&Form->ConfigRequestHead, LinkStorage)) {
2672 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (LinkStorage);
2673 LinkStorage = GetNextNode (&Form->ConfigRequestHead, LinkStorage);
2674
2675 if (Storage != ConfigInfo->Storage) {
2676 continue;
2677 }
2678
2679 if (StrStr (ConfigInfo->ConfigRequest, Progress) != NULL) {
2680 //
2681 // Find the OffsetWidth string in this form.
2682 //
2683 *RetForm = Form;
2684 break;
2685 }
2686 }
2687
2688 if (*RetForm != NULL) {
2689 LinkStatement = GetFirstNode (&Form->StatementListHead);
2690 while (!IsNull (&Form->StatementListHead, LinkStatement)) {
2691 Statement = FORM_BROWSER_STATEMENT_FROM_LINK (LinkStatement);
2692 LinkStatement = GetNextNode (&Form->StatementListHead, LinkStatement);
2693
2694 if (Statement->BlockName != NULL && StrStr (Statement->BlockName, Progress) != NULL) {
2695 *RetQuestion = Statement;
2696 break;
2697 }
2698
2699 if (Statement->VariableName != NULL && StrStr (Statement->VariableName, Progress) != NULL) {
2700 *RetQuestion = Statement;
2701 break;
2702 }
2703 }
2704 }
2705
2706 if (*RetForm != NULL) {
2707 break;
2708 }
2709 }
2710
2711 //
2712 // restore the OffsetWidth string to the original format.
2713 //
2714 if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
2715 *EndStr = '=';
2716 } else {
2717 *EndStr = '&';
2718 }
2719
2720 return (BOOLEAN) (*RetForm != NULL);
2721 }
2722
2723 /**
2724 Popup an save error info and get user input.
2725
2726 @param TitleId The form title id.
2727 @param HiiHandle The hii handle for this package.
2728
2729 @retval UINT32 The user select option for the save fail.
2730 BROWSER_ACTION_DISCARD or BROWSER_ACTION_JUMP_TO_FORMSET
2731 **/
2732 UINT32
2733 ConfirmSaveFail (
2734 IN EFI_STRING_ID TitleId,
2735 IN EFI_HII_HANDLE HiiHandle
2736 )
2737 {
2738 CHAR16 *FormTitle;
2739 CHAR16 *StringBuffer;
2740 UINT32 RetVal;
2741
2742 FormTitle = GetToken (TitleId, HiiHandle);
2743
2744 StringBuffer = AllocateZeroPool (256 * sizeof (CHAR16));
2745 ASSERT (StringBuffer != NULL);
2746
2747 UnicodeSPrint (
2748 StringBuffer,
2749 24 * sizeof (CHAR16) + StrSize (FormTitle),
2750 L"Submit Fail For Form: %s.",
2751 FormTitle
2752 );
2753
2754 RetVal = PopupErrorMessage(BROWSER_SUBMIT_FAIL, NULL, NULL, StringBuffer);
2755
2756 FreePool (StringBuffer);
2757 FreePool (FormTitle);
2758
2759 return RetVal;
2760 }
2761
2762 /**
2763 Popup an NO_SUBMIT_IF error info and get user input.
2764
2765 @param TitleId The form title id.
2766 @param HiiHandle The hii handle for this package.
2767
2768 @retval UINT32 The user select option for the save fail.
2769 BROWSER_ACTION_DISCARD or BROWSER_ACTION_JUMP_TO_FORMSET
2770 **/
2771 UINT32
2772 ConfirmNoSubmitFail (
2773 IN EFI_STRING_ID TitleId,
2774 IN EFI_HII_HANDLE HiiHandle
2775 )
2776 {
2777 CHAR16 *FormTitle;
2778 CHAR16 *StringBuffer;
2779 UINT32 RetVal;
2780
2781 FormTitle = GetToken (TitleId, HiiHandle);
2782
2783 StringBuffer = AllocateZeroPool (256 * sizeof (CHAR16));
2784 ASSERT (StringBuffer != NULL);
2785
2786 UnicodeSPrint (
2787 StringBuffer,
2788 24 * sizeof (CHAR16) + StrSize (FormTitle),
2789 L"NO_SUBMIT_IF error For Form: %s.",
2790 FormTitle
2791 );
2792
2793 RetVal = PopupErrorMessage(BROWSER_SUBMIT_FAIL_NO_SUBMIT_IF, NULL, NULL, StringBuffer);
2794
2795 FreePool (StringBuffer);
2796 FreePool (FormTitle);
2797
2798 return RetVal;
2799 }
2800
2801 /**
2802 Discard data based on the input setting scope (Form, FormSet or System).
2803
2804 @param FormSet FormSet data structure.
2805 @param Form Form data structure.
2806 @param SettingScope Setting Scope for Discard action.
2807
2808 @retval EFI_SUCCESS The function completed successfully.
2809 @retval EFI_UNSUPPORTED Unsupport SettingScope.
2810
2811 **/
2812 EFI_STATUS
2813 DiscardForm (
2814 IN FORM_BROWSER_FORMSET *FormSet,
2815 IN FORM_BROWSER_FORM *Form,
2816 IN BROWSER_SETTING_SCOPE SettingScope
2817 )
2818 {
2819 LIST_ENTRY *Link;
2820 FORMSET_STORAGE *Storage;
2821 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
2822 FORM_BROWSER_FORMSET *LocalFormSet;
2823 FORM_BROWSER_FORMSET *OldFormSet;
2824
2825 //
2826 // Check the supported setting level.
2827 //
2828 if (SettingScope >= MaxLevel) {
2829 return EFI_UNSUPPORTED;
2830 }
2831
2832 if (SettingScope == FormLevel && IsNvUpdateRequiredForForm (Form)) {
2833 ConfigInfo = NULL;
2834 Link = GetFirstNode (&Form->ConfigRequestHead);
2835 while (!IsNull (&Form->ConfigRequestHead, Link)) {
2836 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
2837 Link = GetNextNode (&Form->ConfigRequestHead, Link);
2838
2839 if (ConfigInfo->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
2840 continue;
2841 }
2842
2843 //
2844 // Skip if there is no RequestElement
2845 //
2846 if (ConfigInfo->ElementCount == 0) {
2847 continue;
2848 }
2849
2850 //
2851 // Prepare <ConfigResp>
2852 //
2853 SynchronizeStorage(ConfigInfo->Storage, ConfigInfo->ConfigRequest, FALSE);
2854
2855 //
2856 // Call callback with Changed type to inform the driver.
2857 //
2858 SendDiscardInfoToDriver (FormSet, Form);
2859 }
2860
2861 ValueChangeResetFlagUpdate (FALSE, FormSet, Form);
2862 } else if (SettingScope == FormSetLevel && IsNvUpdateRequiredForFormSet (FormSet)) {
2863
2864 //
2865 // Discard Buffer storage or Name/Value storage
2866 //
2867 Link = GetFirstNode (&FormSet->StorageListHead);
2868 while (!IsNull (&FormSet->StorageListHead, Link)) {
2869 Storage = FORMSET_STORAGE_FROM_LINK (Link);
2870 Link = GetNextNode (&FormSet->StorageListHead, Link);
2871
2872 if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
2873 continue;
2874 }
2875
2876 //
2877 // Skip if there is no RequestElement
2878 //
2879 if (Storage->ElementCount == 0) {
2880 continue;
2881 }
2882
2883 SynchronizeStorage(Storage->BrowserStorage, Storage->ConfigRequest, FALSE);
2884 }
2885
2886 Link = GetFirstNode (&FormSet->FormListHead);
2887 while (!IsNull (&FormSet->FormListHead, Link)) {
2888 Form = FORM_BROWSER_FORM_FROM_LINK (Link);
2889 Link = GetNextNode (&FormSet->FormListHead, Link);
2890
2891 //
2892 // Call callback with Changed type to inform the driver.
2893 //
2894 SendDiscardInfoToDriver (FormSet, Form);
2895 }
2896
2897 ValueChangeResetFlagUpdate(FALSE, FormSet, NULL);
2898 } else if (SettingScope == SystemLevel) {
2899 //
2900 // System Level Discard.
2901 //
2902 OldFormSet = mSystemLevelFormSet;
2903
2904 //
2905 // Discard changed value for each FormSet in the maintain list.
2906 //
2907 Link = GetFirstNode (&gBrowserFormSetList);
2908 while (!IsNull (&gBrowserFormSetList, Link)) {
2909 LocalFormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
2910 Link = GetNextNode (&gBrowserFormSetList, Link);
2911 if (!ValidateFormSet(LocalFormSet)) {
2912 continue;
2913 }
2914
2915 mSystemLevelFormSet = LocalFormSet;
2916
2917 DiscardForm (LocalFormSet, NULL, FormSetLevel);
2918 if (!IsHiiHandleInBrowserContext (LocalFormSet->HiiHandle)) {
2919 //
2920 // Remove maintain backup list after discard except for the current using FormSet.
2921 //
2922 CleanBrowserStorage(LocalFormSet);
2923 RemoveEntryList (&LocalFormSet->Link);
2924 DestroyFormSet (LocalFormSet);
2925 }
2926 }
2927
2928 mSystemLevelFormSet = OldFormSet;
2929 }
2930
2931 return EFI_SUCCESS;
2932 }
2933
2934 /**
2935 Submit data for a form.
2936
2937 @param FormSet FormSet data structure.
2938 @param Form Form data structure.
2939
2940 @retval EFI_SUCCESS The function completed successfully.
2941 @retval EFI_UNSUPPORTED Unsupport SettingScope.
2942
2943 **/
2944 EFI_STATUS
2945 SubmitForForm (
2946 IN FORM_BROWSER_FORMSET *FormSet,
2947 IN FORM_BROWSER_FORM *Form
2948 )
2949 {
2950 EFI_STATUS Status;
2951 LIST_ENTRY *Link;
2952 EFI_STRING ConfigResp;
2953 EFI_STRING Progress;
2954 BROWSER_STORAGE *Storage;
2955 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
2956
2957 if (!IsNvUpdateRequiredForForm (Form)) {
2958 return EFI_SUCCESS;
2959 }
2960
2961 Status = NoSubmitCheck (FormSet, &Form, NULL);
2962 if (EFI_ERROR (Status)) {
2963 return Status;
2964 }
2965
2966 Link = GetFirstNode (&Form->ConfigRequestHead);
2967 while (!IsNull (&Form->ConfigRequestHead, Link)) {
2968 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
2969 Link = GetNextNode (&Form->ConfigRequestHead, Link);
2970
2971 Storage = ConfigInfo->Storage;
2972 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
2973 continue;
2974 }
2975
2976 //
2977 // Skip if there is no RequestElement
2978 //
2979 if (ConfigInfo->ElementCount == 0) {
2980 continue;
2981 }
2982
2983 //
2984 // 1. Prepare <ConfigResp>
2985 //
2986 Status = StorageToConfigResp (ConfigInfo->Storage, &ConfigResp, ConfigInfo->ConfigRequest, TRUE);
2987 if (EFI_ERROR (Status)) {
2988 return Status;
2989 }
2990
2991 //
2992 // 2. Set value to hii config routine protocol.
2993 //
2994 Status = mHiiConfigRouting->RouteConfig (
2995 mHiiConfigRouting,
2996 ConfigResp,
2997 &Progress
2998 );
2999 FreePool (ConfigResp);
3000
3001 if (EFI_ERROR (Status)) {
3002 InsertTailList (&gBrowserSaveFailFormSetList, &ConfigInfo->SaveFailLink);
3003 continue;
3004 }
3005
3006 //
3007 // 3. Config success, update storage shadow Buffer, only update the data belong to this form.
3008 //
3009 SynchronizeStorage (ConfigInfo->Storage, ConfigInfo->ConfigRequest, TRUE);
3010 }
3011
3012 //
3013 // 4. Process the save failed storage.
3014 //
3015 if (!IsListEmpty (&gBrowserSaveFailFormSetList)) {
3016 if (ConfirmSaveFail (Form->FormTitle, FormSet->HiiHandle) == BROWSER_ACTION_DISCARD) {
3017 Link = GetFirstNode (&gBrowserSaveFailFormSetList);
3018 while (!IsNull (&gBrowserSaveFailFormSetList, Link)) {
3019 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_SAVE_FAIL_LINK (Link);
3020 Link = GetNextNode (&gBrowserSaveFailFormSetList, Link);
3021
3022 SynchronizeStorage(ConfigInfo->Storage, ConfigInfo->ConfigRequest, FALSE);
3023
3024 Status = EFI_SUCCESS;
3025 }
3026 } else {
3027 Status = EFI_UNSUPPORTED;
3028 }
3029
3030 //
3031 // Free Form save fail list.
3032 //
3033 while (!IsListEmpty (&gBrowserSaveFailFormSetList)) {
3034 Link = GetFirstNode (&gBrowserSaveFailFormSetList);
3035 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_SAVE_FAIL_LINK (Link);
3036 RemoveEntryList (&ConfigInfo->SaveFailLink);
3037 }
3038 }
3039
3040 //
3041 // 5. Update the NV flag.
3042 //
3043 ValueChangeResetFlagUpdate(TRUE, FormSet, Form);
3044
3045 return Status;
3046 }
3047
3048 /**
3049 Submit data for a formset.
3050
3051 @param FormSet FormSet data structure.
3052 @param SkipProcessFail Whether skip to process the save failed storage.
3053 If submit formset is called when do system level save,
3054 set this value to true and process the failed formset
3055 together.
3056 if submit formset is called when do formset level save,
3057 set the value to false and process the failed storage
3058 right after process all storages for this formset.
3059
3060 @retval EFI_SUCCESS The function completed successfully.
3061 @retval EFI_UNSUPPORTED Unsupport SettingScope.
3062
3063 **/
3064 EFI_STATUS
3065 SubmitForFormSet (
3066 IN FORM_BROWSER_FORMSET *FormSet,
3067 IN BOOLEAN SkipProcessFail
3068 )
3069 {
3070 EFI_STATUS Status;
3071 LIST_ENTRY *Link;
3072 EFI_STRING ConfigResp;
3073 EFI_STRING Progress;
3074 BROWSER_STORAGE *Storage;
3075 FORMSET_STORAGE *FormSetStorage;
3076 FORM_BROWSER_FORM *Form;
3077 BOOLEAN HasInserted;
3078 FORM_BROWSER_STATEMENT *Question;
3079
3080 HasInserted = FALSE;
3081
3082 if (!IsNvUpdateRequiredForFormSet (FormSet)) {
3083 return EFI_SUCCESS;
3084 }
3085
3086 Form = NULL;
3087 Status = NoSubmitCheck (FormSet, &Form, &Question);
3088 if (EFI_ERROR (Status)) {
3089 if (SkipProcessFail) {
3090 //
3091 // Process NO_SUBMIT check first, so insert it at head.
3092 //
3093 FormSet->SaveFailForm = Form;
3094 FormSet->SaveFailStatement = Question;
3095 InsertHeadList (&gBrowserSaveFailFormSetList, &FormSet->SaveFailLink);
3096 }
3097
3098 return Status;
3099 }
3100
3101 Form = NULL;
3102 Question = NULL;
3103 //
3104 // Submit Buffer storage or Name/Value storage
3105 //
3106 Link = GetFirstNode (&FormSet->StorageListHead);
3107 while (!IsNull (&FormSet->StorageListHead, Link)) {
3108 FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
3109 Storage = FormSetStorage->BrowserStorage;
3110 Link = GetNextNode (&FormSet->StorageListHead, Link);
3111
3112 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
3113 continue;
3114 }
3115
3116 //
3117 // Skip if there is no RequestElement
3118 //
3119 if (FormSetStorage->ElementCount == 0) {
3120 continue;
3121 }
3122
3123 //
3124 // 1. Prepare <ConfigResp>
3125 //
3126 Status = StorageToConfigResp (Storage, &ConfigResp, FormSetStorage->ConfigRequest, TRUE);
3127 if (EFI_ERROR (Status)) {
3128 return Status;
3129 }
3130
3131 //
3132 // 2. Send <ConfigResp> to Routine config Protocol.
3133 //
3134 Status = mHiiConfigRouting->RouteConfig (
3135 mHiiConfigRouting,
3136 ConfigResp,
3137 &Progress
3138 );
3139 if (EFI_ERROR (Status)) {
3140 InsertTailList (&FormSet->SaveFailStorageListHead, &FormSetStorage->SaveFailLink);
3141 if (!HasInserted) {
3142 //
3143 // Call submit formset for system level, save the formset info
3144 // and process later.
3145 //
3146 FindQuestionFromProgress(FormSet, Storage, Progress, &Form, &Question);
3147 ASSERT (Form != NULL && Question != NULL);
3148 FormSet->SaveFailForm = Form;
3149 FormSet->SaveFailStatement = Question;
3150 if (SkipProcessFail) {
3151 InsertTailList (&gBrowserSaveFailFormSetList, &FormSet->SaveFailLink);
3152 }
3153 HasInserted = TRUE;
3154 }
3155
3156 FreePool (ConfigResp);
3157 continue;
3158 }
3159
3160 FreePool (ConfigResp);
3161 //
3162 // 3. Config success, update storage shadow Buffer
3163 //
3164 SynchronizeStorage (Storage, FormSetStorage->ConfigRequest, TRUE);
3165 }
3166
3167 //
3168 // 4. Has save fail storage need to handle.
3169 //
3170 if (Form != NULL) {
3171 if (!SkipProcessFail) {
3172 //
3173 // If not in system level, just handl the save failed storage here.
3174 //
3175 if (ConfirmSaveFail (Form->FormTitle, FormSet->HiiHandle) == BROWSER_ACTION_DISCARD) {
3176 Link = GetFirstNode (&FormSet->SaveFailStorageListHead);
3177 while (!IsNull (&FormSet->SaveFailStorageListHead, Link)) {
3178 FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (Link);
3179 Storage = FormSetStorage->BrowserStorage;
3180 Link = GetNextNode (&FormSet->SaveFailStorageListHead, Link);
3181
3182 SynchronizeStorage(FormSetStorage->BrowserStorage, FormSetStorage->ConfigRequest, FALSE);
3183
3184 Status = EFI_SUCCESS;
3185 }
3186 } else {
3187 UiCopyMenuList(&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &Form->FormViewListHead);
3188
3189 gCurrentSelection->Action = UI_ACTION_REFRESH_FORMSET;
3190 gCurrentSelection->Handle = FormSet->HiiHandle;
3191 CopyGuid (&gCurrentSelection->FormSetGuid, &FormSet->Guid);
3192 gCurrentSelection->FormId = Form->FormId;
3193 gCurrentSelection->QuestionId = Question->QuestionId;
3194
3195 Status = EFI_UNSUPPORTED;
3196 }
3197
3198 //
3199 // Free FormSet save fail list.
3200 //
3201 while (!IsListEmpty (&FormSet->SaveFailStorageListHead)) {
3202 Link = GetFirstNode (&FormSet->SaveFailStorageListHead);
3203 FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (Link);
3204 RemoveEntryList (&FormSetStorage->SaveFailLink);
3205 }
3206 } else {
3207 //
3208 // If in system level, just return error and handle the failed formset later.
3209 //
3210 Status = EFI_UNSUPPORTED;
3211 }
3212 }
3213
3214 //
3215 // 5. Update the NV flag.
3216 //
3217 ValueChangeResetFlagUpdate(TRUE, FormSet, NULL);
3218
3219 return Status;
3220 }
3221
3222 /**
3223 Submit data for all formsets.
3224
3225 @retval EFI_SUCCESS The function completed successfully.
3226 @retval EFI_UNSUPPORTED Unsupport SettingScope.
3227
3228 **/
3229 EFI_STATUS
3230 SubmitForSystem (
3231 VOID
3232 )
3233 {
3234 EFI_STATUS Status;
3235 LIST_ENTRY *Link;
3236 LIST_ENTRY *StorageLink;
3237 FORMSET_STORAGE *FormSetStorage;
3238 FORM_BROWSER_FORM *Form;
3239 FORM_BROWSER_FORMSET *LocalFormSet;
3240 UINT32 UserSelection;
3241 FORM_BROWSER_STATEMENT *Question;
3242
3243 mSystemSubmit = TRUE;
3244 Link = GetFirstNode (&gBrowserFormSetList);
3245 while (!IsNull (&gBrowserFormSetList, Link)) {
3246 LocalFormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
3247 Link = GetNextNode (&gBrowserFormSetList, Link);
3248 if (!ValidateFormSet(LocalFormSet)) {
3249 continue;
3250 }
3251
3252 Status = SubmitForFormSet (LocalFormSet, TRUE);
3253 if (EFI_ERROR (Status)) {
3254 continue;
3255 }
3256
3257 //
3258 // Remove maintain backup list after save except for the current using FormSet.
3259 //
3260 if (!IsHiiHandleInBrowserContext (LocalFormSet->HiiHandle)) {
3261 CleanBrowserStorage(LocalFormSet);
3262 RemoveEntryList (&LocalFormSet->Link);
3263 DestroyFormSet (LocalFormSet);
3264 }
3265 }
3266 mSystemSubmit = FALSE;
3267
3268 Status = EFI_SUCCESS;
3269
3270 //
3271 // Process the save failed formsets.
3272 //
3273 Link = GetFirstNode (&gBrowserSaveFailFormSetList);
3274 while (!IsNull (&gBrowserSaveFailFormSetList, Link)) {
3275 LocalFormSet = FORM_BROWSER_FORMSET_FROM_SAVE_FAIL_LINK (Link);
3276 Link = GetNextNode (&gBrowserSaveFailFormSetList, Link);
3277
3278 if (!ValidateFormSet(LocalFormSet)) {
3279 continue;
3280 }
3281
3282 Form = LocalFormSet->SaveFailForm;
3283 Question= LocalFormSet->SaveFailStatement;
3284
3285 //
3286 // Confirm with user, get user input.
3287 //
3288 if (IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
3289 //
3290 // NULL for SaveFailStorageListHead means error caused by NO_SUBMIT_IF check.
3291 //
3292 UserSelection = ConfirmNoSubmitFail (Form->FormTitle, LocalFormSet->HiiHandle);
3293 } else {
3294 UserSelection = ConfirmSaveFail (Form->FormTitle, LocalFormSet->HiiHandle);
3295 }
3296
3297 if (UserSelection == BROWSER_ACTION_DISCARD) {
3298 if (IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
3299 StorageLink = GetFirstNode (&LocalFormSet->StorageListHead);
3300 while (!IsNull (&LocalFormSet->StorageListHead, StorageLink)) {
3301 FormSetStorage = FORMSET_STORAGE_FROM_LINK (StorageLink);
3302 StorageLink = GetNextNode (&LocalFormSet->StorageListHead, StorageLink);
3303
3304 SynchronizeStorage(FormSetStorage->BrowserStorage, FormSetStorage->ConfigRequest, FALSE);
3305 }
3306 } else {
3307 StorageLink = GetFirstNode (&LocalFormSet->SaveFailStorageListHead);
3308 while (!IsNull (&LocalFormSet->SaveFailStorageListHead, StorageLink)) {
3309 FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (StorageLink);
3310 StorageLink = GetNextNode (&LocalFormSet->SaveFailStorageListHead, StorageLink);
3311
3312 SynchronizeStorage(FormSetStorage->BrowserStorage, FormSetStorage->ConfigRequest, FALSE);
3313 }
3314 }
3315
3316 if (!IsHiiHandleInBrowserContext (LocalFormSet->HiiHandle)) {
3317 CleanBrowserStorage(LocalFormSet);
3318 RemoveEntryList (&LocalFormSet->Link);
3319 RemoveEntryList (&LocalFormSet->SaveFailLink);
3320 DestroyFormSet (LocalFormSet);
3321 } else {
3322 ValueChangeResetFlagUpdate(FALSE, LocalFormSet, NULL);
3323 }
3324 } else {
3325 if (IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
3326 NoSubmitCheck (LocalFormSet, &Form, &Question);
3327 }
3328
3329 UiCopyMenuList(&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &Form->FormViewListHead);
3330
3331 gCurrentSelection->Action = UI_ACTION_REFRESH_FORMSET;
3332 gCurrentSelection->Handle = LocalFormSet->HiiHandle;
3333 CopyGuid (&gCurrentSelection->FormSetGuid, &LocalFormSet->Guid);
3334 gCurrentSelection->FormId = Form->FormId;
3335 gCurrentSelection->QuestionId = Question->QuestionId;
3336
3337 Status = EFI_UNSUPPORTED;
3338 break;
3339 }
3340 }
3341
3342 //
3343 // Clean the list which will not process.
3344 //
3345 while (!IsListEmpty (&gBrowserSaveFailFormSetList)) {
3346 Link = GetFirstNode (&gBrowserSaveFailFormSetList);
3347 LocalFormSet = FORM_BROWSER_FORMSET_FROM_SAVE_FAIL_LINK (Link);
3348 RemoveEntryList (&LocalFormSet->SaveFailLink);
3349
3350 while (!IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
3351 StorageLink = GetFirstNode (&LocalFormSet->SaveFailStorageListHead);
3352 FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (StorageLink);
3353 RemoveEntryList (&FormSetStorage->SaveFailLink);
3354 }
3355 }
3356
3357 return Status;
3358 }
3359
3360 /**
3361 Submit data based on the input Setting level (Form, FormSet or System).
3362
3363 @param FormSet FormSet data structure.
3364 @param Form Form data structure.
3365 @param SettingScope Setting Scope for Submit action.
3366
3367 @retval EFI_SUCCESS The function completed successfully.
3368 @retval EFI_UNSUPPORTED Unsupport SettingScope.
3369
3370 **/
3371 EFI_STATUS
3372 SubmitForm (
3373 IN FORM_BROWSER_FORMSET *FormSet,
3374 IN FORM_BROWSER_FORM *Form,
3375 IN BROWSER_SETTING_SCOPE SettingScope
3376 )
3377 {
3378 EFI_STATUS Status;
3379
3380 switch (SettingScope) {
3381 case FormLevel:
3382 Status = SubmitForForm(FormSet, Form);
3383 break;
3384
3385 case FormSetLevel:
3386 Status = SubmitForFormSet (FormSet, FALSE);
3387 break;
3388
3389 case SystemLevel:
3390 Status = SubmitForSystem ();
3391 break;
3392
3393 default:
3394 Status = EFI_UNSUPPORTED;
3395 break;
3396 }
3397
3398 return Status;
3399 }
3400
3401 /**
3402 Converts the unicode character of the string from uppercase to lowercase.
3403 This is a internal function.
3404
3405 @param ConfigString String to be converted
3406
3407 **/
3408 VOID
3409 EFIAPI
3410 HiiToLower (
3411 IN EFI_STRING ConfigString
3412 )
3413 {
3414 EFI_STRING String;
3415 BOOLEAN Lower;
3416
3417 ASSERT (ConfigString != NULL);
3418
3419 //
3420 // Convert all hex digits in range [A-F] in the configuration header to [a-f]
3421 //
3422 for (String = ConfigString, Lower = FALSE; *String != L'\0'; String++) {
3423 if (*String == L'=') {
3424 Lower = TRUE;
3425 } else if (*String == L'&') {
3426 Lower = FALSE;
3427 } else if (Lower && *String >= L'A' && *String <= L'F') {
3428 *String = (CHAR16) (*String - L'A' + L'a');
3429 }
3430 }
3431 }
3432
3433 /**
3434 Find the point in the ConfigResp string for this question.
3435
3436 @param Question The question.
3437 @param ConfigResp Get ConfigResp string.
3438
3439 @retval point to the offset where is for this question.
3440
3441 **/
3442 CHAR16 *
3443 GetOffsetFromConfigResp (
3444 IN FORM_BROWSER_STATEMENT *Question,
3445 IN CHAR16 *ConfigResp
3446 )
3447 {
3448 CHAR16 *RequestElement;
3449 CHAR16 *BlockData;
3450
3451 //
3452 // Type is EFI_HII_VARSTORE_NAME_VALUE.
3453 //
3454 if (Question->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
3455 RequestElement = StrStr (ConfigResp, Question->VariableName);
3456 if (RequestElement != NULL) {
3457 //
3458 // Skip the "VariableName=" field.
3459 //
3460 RequestElement += StrLen (Question->VariableName) + 1;
3461 }
3462
3463 return RequestElement;
3464 }
3465
3466 //
3467 // Type is EFI_HII_VARSTORE_EFI_VARIABLE or EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER
3468 //
3469
3470 //
3471 // 1. Directly use Question->BlockName to find.
3472 //
3473 RequestElement = StrStr (ConfigResp, Question->BlockName);
3474 if (RequestElement != NULL) {
3475 //
3476 // Skip the "Question->BlockName&VALUE=" field.
3477 //
3478 RequestElement += StrLen (Question->BlockName) + StrLen (L"&VALUE=");
3479 return RequestElement;
3480 }
3481
3482 //
3483 // 2. Change all hex digits in Question->BlockName to lower and compare again.
3484 //
3485 BlockData = AllocateCopyPool (StrSize(Question->BlockName), Question->BlockName);
3486 ASSERT (BlockData != NULL);
3487 HiiToLower (BlockData);
3488 RequestElement = StrStr (ConfigResp, BlockData);
3489 FreePool (BlockData);
3490
3491 if (RequestElement != NULL) {
3492 //
3493 // Skip the "Question->BlockName&VALUE=" field.
3494 //
3495 RequestElement += StrLen (Question->BlockName) + StrLen (L"&VALUE=");
3496 }
3497
3498 return RequestElement;
3499 }
3500
3501 /**
3502 Get Question default value from AltCfg string.
3503
3504 @param FormSet The form set.
3505 @param Form The form
3506 @param Question The question.
3507
3508 @retval EFI_SUCCESS Question is reset to default value.
3509
3510 **/
3511 EFI_STATUS
3512 GetDefaultValueFromAltCfg (
3513 IN FORM_BROWSER_FORMSET *FormSet,
3514 IN FORM_BROWSER_FORM *Form,
3515 IN OUT FORM_BROWSER_STATEMENT *Question
3516 )
3517 {
3518 BROWSER_STORAGE *Storage;
3519 FORMSET_STORAGE *FormSetStorage;
3520 CHAR16 *ConfigResp;
3521 CHAR16 *Value;
3522 LIST_ENTRY *Link;
3523 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
3524
3525 Storage = Question->Storage;
3526 if ((Storage == NULL) || (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) {
3527 return EFI_NOT_FOUND;
3528 }
3529
3530 //
3531 // Try to get AltCfg string from form. If not found it, then
3532 // try to get it from formset.
3533 //
3534 ConfigResp = NULL;
3535 Link = GetFirstNode (&Form->ConfigRequestHead);
3536 while (!IsNull (&Form->ConfigRequestHead, Link)) {
3537 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
3538 Link = GetNextNode (&Form->ConfigRequestHead, Link);
3539
3540 if (Storage == ConfigInfo->Storage) {
3541 ConfigResp = ConfigInfo->ConfigAltResp;
3542 break;
3543 }
3544 }
3545
3546 if (ConfigResp == NULL) {
3547 Link = GetFirstNode (&FormSet->StorageListHead);
3548 while (!IsNull (&FormSet->StorageListHead, Link)) {
3549 FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
3550 Link = GetNextNode (&FormSet->StorageListHead, Link);
3551
3552 if (Storage == FormSetStorage->BrowserStorage) {
3553 ConfigResp = FormSetStorage->ConfigAltResp;
3554 break;
3555 }
3556 }
3557 }
3558
3559 if (ConfigResp == NULL) {
3560 return EFI_NOT_FOUND;
3561 }
3562
3563 Value = GetOffsetFromConfigResp (Question, ConfigResp);
3564 if (Value == NULL) {
3565 return EFI_NOT_FOUND;
3566 }
3567
3568 return BufferToValue (Question, Value);
3569 }
3570
3571 /**
3572 Get default Id value used for browser.
3573
3574 @param DefaultId The default id value used by hii.
3575
3576 @retval Browser used default value.
3577
3578 **/
3579 INTN
3580 GetDefaultIdForCallBack (
3581 UINTN DefaultId
3582 )
3583 {
3584 if (DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) {
3585 return EFI_BROWSER_ACTION_DEFAULT_STANDARD;
3586 } else if (DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
3587 return EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING;
3588 } else if (DefaultId == EFI_HII_DEFAULT_CLASS_SAFE) {
3589 return EFI_BROWSER_ACTION_DEFAULT_SAFE;
3590 } else if (DefaultId >= EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN && DefaultId < EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN + 0x1000) {
3591 return EFI_BROWSER_ACTION_DEFAULT_PLATFORM + DefaultId - EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN;
3592 } else if (DefaultId >= EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN && DefaultId < EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN + 0x1000) {
3593 return EFI_BROWSER_ACTION_DEFAULT_HARDWARE + DefaultId - EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN;
3594 } else if (DefaultId >= EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN && DefaultId < EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN + 0x1000) {
3595 return EFI_BROWSER_ACTION_DEFAULT_FIRMWARE + DefaultId - EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN;
3596 } else {
3597 return -1;
3598 }
3599 }
3600
3601
3602
3603 /**
3604 Return data element in an Array by its Index.
3605
3606 @param Array The data array.
3607 @param Type Type of the data in this array.
3608 @param Index Zero based index for data in this array.
3609
3610 @retval Value The data to be returned
3611
3612 **/
3613 UINT64
3614 GetArrayData (
3615 IN VOID *Array,
3616 IN UINT8 Type,
3617 IN UINTN Index
3618 )
3619 {
3620 UINT64 Data;
3621
3622 ASSERT (Array != NULL);
3623
3624 Data = 0;
3625 switch (Type) {
3626 case EFI_IFR_TYPE_NUM_SIZE_8:
3627 Data = (UINT64) *(((UINT8 *) Array) + Index);
3628 break;
3629
3630 case EFI_IFR_TYPE_NUM_SIZE_16:
3631 Data = (UINT64) *(((UINT16 *) Array) + Index);
3632 break;
3633
3634 case EFI_IFR_TYPE_NUM_SIZE_32:
3635 Data = (UINT64) *(((UINT32 *) Array) + Index);
3636 break;
3637
3638 case EFI_IFR_TYPE_NUM_SIZE_64:
3639 Data = (UINT64) *(((UINT64 *) Array) + Index);
3640 break;
3641
3642 default:
3643 break;
3644 }
3645
3646 return Data;
3647 }
3648
3649
3650 /**
3651 Set value of a data element in an Array by its Index.
3652
3653 @param Array The data array.
3654 @param Type Type of the data in this array.
3655 @param Index Zero based index for data in this array.
3656 @param Value The value to be set.
3657
3658 **/
3659 VOID
3660 SetArrayData (
3661 IN VOID *Array,
3662 IN UINT8 Type,
3663 IN UINTN Index,
3664 IN UINT64 Value
3665 )
3666 {
3667
3668 ASSERT (Array != NULL);
3669
3670 switch (Type) {
3671 case EFI_IFR_TYPE_NUM_SIZE_8:
3672 *(((UINT8 *) Array) + Index) = (UINT8) Value;
3673 break;
3674
3675 case EFI_IFR_TYPE_NUM_SIZE_16:
3676 *(((UINT16 *) Array) + Index) = (UINT16) Value;
3677 break;
3678
3679 case EFI_IFR_TYPE_NUM_SIZE_32:
3680 *(((UINT32 *) Array) + Index) = (UINT32) Value;
3681 break;
3682
3683 case EFI_IFR_TYPE_NUM_SIZE_64:
3684 *(((UINT64 *) Array) + Index) = (UINT64) Value;
3685 break;
3686
3687 default:
3688 break;
3689 }
3690 }
3691
3692 /**
3693 Search an Option of a Question by its value.
3694
3695 @param Question The Question
3696 @param OptionValue Value for Option to be searched.
3697
3698 @retval Pointer Pointer to the found Option.
3699 @retval NULL Option not found.
3700
3701 **/
3702 QUESTION_OPTION *
3703 ValueToOption (
3704 IN FORM_BROWSER_STATEMENT *Question,
3705 IN EFI_HII_VALUE *OptionValue
3706 )
3707 {
3708 LIST_ENTRY *Link;
3709 QUESTION_OPTION *Option;
3710 INTN Result;
3711
3712 Link = GetFirstNode (&Question->OptionListHead);
3713 while (!IsNull (&Question->OptionListHead, Link)) {
3714 Option = QUESTION_OPTION_FROM_LINK (Link);
3715
3716 if ((CompareHiiValue (&Option->Value, OptionValue, &Result, NULL) == EFI_SUCCESS) && (Result == 0)) {
3717 //
3718 // Check the suppressif condition, only a valid option can be return.
3719 //
3720 if ((Option->SuppressExpression == NULL) ||
3721 ((EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) == ExpressFalse))) {
3722 return Option;
3723 }
3724 }
3725
3726 Link = GetNextNode (&Question->OptionListHead, Link);
3727 }
3728
3729 return NULL;
3730 }
3731
3732
3733 /**
3734 Reset Question to its default value.
3735
3736 @param FormSet The form set.
3737 @param Form The form.
3738 @param Question The question.
3739 @param DefaultId The Class of the default.
3740
3741 @retval EFI_SUCCESS Question is reset to default value.
3742
3743 **/
3744 EFI_STATUS
3745 GetQuestionDefault (
3746 IN FORM_BROWSER_FORMSET *FormSet,
3747 IN FORM_BROWSER_FORM *Form,
3748 IN FORM_BROWSER_STATEMENT *Question,
3749 IN UINT16 DefaultId
3750 )
3751 {
3752 EFI_STATUS Status;
3753 LIST_ENTRY *Link;
3754 QUESTION_DEFAULT *Default;
3755 QUESTION_OPTION *Option;
3756 EFI_HII_VALUE *HiiValue;
3757 UINT8 Index;
3758 EFI_STRING StrValue;
3759 EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
3760 EFI_BROWSER_ACTION_REQUEST ActionRequest;
3761 INTN Action;
3762 CHAR16 *NewString;
3763
3764 Status = EFI_NOT_FOUND;
3765 StrValue = NULL;
3766
3767 //
3768 // Statement don't have storage, skip them
3769 //
3770 if (Question->QuestionId == 0) {
3771 return Status;
3772 }
3773
3774 //
3775 // There are Five ways to specify default value for a Question:
3776 // 1, use call back function (highest priority)
3777 // 2, use ExtractConfig function
3778 // 3, use nested EFI_IFR_DEFAULT
3779 // 4, set flags of EFI_ONE_OF_OPTION (provide Standard and Manufacturing default)
3780 // 5, set flags of EFI_IFR_CHECKBOX (provide Standard and Manufacturing default) (lowest priority)
3781 //
3782 HiiValue = &Question->HiiValue;
3783
3784 //
3785 // Get Question defaut value from call back function.
3786 //
3787 ConfigAccess = FormSet->ConfigAccess;
3788 Action = GetDefaultIdForCallBack (DefaultId);
3789 if ((Action > 0) && ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != 0) && (ConfigAccess != NULL)) {
3790 ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
3791 Status = ConfigAccess->Callback (
3792 ConfigAccess,
3793 Action,
3794 Question->QuestionId,
3795 HiiValue->Type,
3796 &HiiValue->Value,
3797 &ActionRequest
3798 );
3799 if (!EFI_ERROR (Status)) {
3800 if (HiiValue->Type == EFI_IFR_TYPE_STRING) {
3801 NewString = GetToken (Question->HiiValue.Value.string, FormSet->HiiHandle);
3802 ASSERT (NewString != NULL);
3803
3804 ASSERT (StrLen (NewString) * sizeof (CHAR16) <= Question->StorageWidth);
3805 if (StrLen (NewString) * sizeof (CHAR16) <= Question->StorageWidth) {
3806 CopyMem (Question->BufferValue, NewString, StrSize (NewString));
3807 } else {
3808 CopyMem (Question->BufferValue, NewString, Question->StorageWidth);
3809 }
3810
3811 FreePool (NewString);
3812 }
3813 return Status;
3814 }
3815 }
3816
3817 //
3818 // Get default value from altcfg string.
3819 //
3820 if (ConfigAccess != NULL) {
3821 Status = GetDefaultValueFromAltCfg(FormSet, Form, Question);
3822 if (!EFI_ERROR (Status)) {
3823 return Status;
3824 }
3825 }
3826
3827 //
3828 // EFI_IFR_DEFAULT has highest priority
3829 //
3830 if (!IsListEmpty (&Question->DefaultListHead)) {
3831 Link = GetFirstNode (&Question->DefaultListHead);
3832 while (!IsNull (&Question->DefaultListHead, Link)) {
3833 Default = QUESTION_DEFAULT_FROM_LINK (Link);
3834
3835 if (Default->DefaultId == DefaultId) {
3836 if (Default->ValueExpression != NULL) {
3837 //
3838 // Default is provided by an Expression, evaluate it
3839 //
3840 Status = EvaluateExpression (FormSet, Form, Default->ValueExpression);
3841 if (EFI_ERROR (Status)) {
3842 return Status;
3843 }
3844
3845 if (Default->ValueExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
3846 ASSERT (HiiValue->Type == EFI_IFR_TYPE_BUFFER && Question->BufferValue != NULL);
3847 if (Question->StorageWidth > Default->ValueExpression->Result.BufferLen) {
3848 CopyMem (Question->HiiValue.Buffer, Default->ValueExpression->Result.Buffer, Default->ValueExpression->Result.BufferLen);
3849 Question->HiiValue.BufferLen = Default->ValueExpression->Result.BufferLen;
3850 } else {
3851 CopyMem (Question->HiiValue.Buffer, Default->ValueExpression->Result.Buffer, Question->StorageWidth);
3852 Question->HiiValue.BufferLen = Question->StorageWidth;
3853 }
3854 FreePool (Default->ValueExpression->Result.Buffer);
3855 }
3856 HiiValue->Type = Default->ValueExpression->Result.Type;
3857 CopyMem (&HiiValue->Value, &Default->ValueExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
3858 } else {
3859 //
3860 // Default value is embedded in EFI_IFR_DEFAULT
3861 //
3862 if (Default->Value.Type == EFI_IFR_TYPE_BUFFER) {
3863 ASSERT (HiiValue->Buffer != NULL);
3864 CopyMem (HiiValue->Buffer, Default->Value.Buffer, Default->Value.BufferLen);
3865 } else {
3866 CopyMem (HiiValue, &Default->Value, sizeof (EFI_HII_VALUE));
3867 }
3868 }
3869
3870 if (HiiValue->Type == EFI_IFR_TYPE_STRING) {
3871 StrValue = HiiGetString (FormSet->HiiHandle, HiiValue->Value.string, NULL);
3872 if (StrValue == NULL) {
3873 return EFI_NOT_FOUND;
3874 }
3875 if (Question->StorageWidth > StrSize (StrValue)) {
3876 CopyMem (Question->BufferValue, StrValue, StrSize (StrValue));
3877 } else {
3878 CopyMem (Question->BufferValue, StrValue, Question->StorageWidth);
3879 }
3880 }
3881
3882 return EFI_SUCCESS;
3883 }
3884
3885 Link = GetNextNode (&Question->DefaultListHead, Link);
3886 }
3887 }
3888
3889 //
3890 // EFI_ONE_OF_OPTION
3891 //
3892 if ((Question->Operand == EFI_IFR_ONE_OF_OP) && !IsListEmpty (&Question->OptionListHead)) {
3893 if (DefaultId <= EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
3894 //
3895 // OneOfOption could only provide Standard and Manufacturing default
3896 //
3897 Link = GetFirstNode (&Question->OptionListHead);
3898 while (!IsNull (&Question->OptionListHead, Link)) {
3899 Option = QUESTION_OPTION_FROM_LINK (Link);
3900 Link = GetNextNode (&Question->OptionListHead, Link);
3901
3902 if ((Option->SuppressExpression != NULL) &&
3903 EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse) {
3904 continue;
3905 }
3906
3907 if (((DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) && ((Option->Flags & EFI_IFR_OPTION_DEFAULT) != 0)) ||
3908 ((DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) && ((Option->Flags & EFI_IFR_OPTION_DEFAULT_MFG) != 0))
3909 ) {
3910 CopyMem (HiiValue, &Option->Value, sizeof (EFI_HII_VALUE));
3911
3912 return EFI_SUCCESS;
3913 }
3914 }
3915 }
3916 }
3917
3918 //
3919 // EFI_IFR_CHECKBOX - lowest priority
3920 //
3921 if (Question->Operand == EFI_IFR_CHECKBOX_OP) {
3922 if (DefaultId <= EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
3923 //
3924 // Checkbox could only provide Standard and Manufacturing default
3925 //
3926 if (((DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) && ((Question->Flags & EFI_IFR_CHECKBOX_DEFAULT) != 0)) ||
3927 ((DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) && ((Question->Flags & EFI_IFR_CHECKBOX_DEFAULT_MFG) != 0))
3928 ) {
3929 HiiValue->Value.b = TRUE;
3930 } else {
3931 HiiValue->Value.b = FALSE;
3932 }
3933
3934 return EFI_SUCCESS;
3935 }
3936 }
3937
3938 //
3939 // For Questions without default
3940 //
3941 Status = EFI_NOT_FOUND;
3942 switch (Question->Operand) {
3943 case EFI_IFR_NUMERIC_OP:
3944 //
3945 // Take minimum value as numeric default value
3946 //
3947 if ((HiiValue->Value.u64 < Question->Minimum) || (HiiValue->Value.u64 > Question->Maximum)) {
3948 HiiValue->Value.u64 = Question->Minimum;
3949 Status = EFI_SUCCESS;
3950 }
3951 break;
3952
3953 case EFI_IFR_ONE_OF_OP:
3954 //
3955 // Take first oneof option as oneof's default value
3956 //
3957 if (ValueToOption (Question, HiiValue) == NULL) {
3958 Link = GetFirstNode (&Question->OptionListHead);
3959 while (!IsNull (&Question->OptionListHead, Link)) {
3960 Option = QUESTION_OPTION_FROM_LINK (Link);
3961 Link = GetNextNode (&Question->OptionListHead, Link);
3962
3963 if ((Option->SuppressExpression != NULL) &&
3964 EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse) {
3965 continue;
3966 }
3967
3968 CopyMem (HiiValue, &Option->Value, sizeof (EFI_HII_VALUE));
3969 Status = EFI_SUCCESS;
3970 break;
3971 }
3972 }
3973 break;
3974
3975 case EFI_IFR_ORDERED_LIST_OP:
3976 //
3977 // Take option sequence in IFR as ordered list's default value
3978 //
3979 Index = 0;
3980 Link = GetFirstNode (&Question->OptionListHead);
3981 while (!IsNull (&Question->OptionListHead, Link)) {
3982 Status = EFI_SUCCESS;
3983 Option = QUESTION_OPTION_FROM_LINK (Link);
3984 Link = GetNextNode (&Question->OptionListHead, Link);
3985
3986 if ((Option->SuppressExpression != NULL) &&
3987 EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse) {
3988 continue;
3989 }
3990
3991 SetArrayData (Question->BufferValue, Question->ValueType, Index, Option->Value.Value.u64);
3992
3993 Index++;
3994 if (Index >= Question->MaxContainers) {
3995 break;
3996 }
3997 }
3998 break;
3999
4000 default:
4001 break;
4002 }
4003
4004 return Status;
4005 }
4006
4007 /**
4008 Get AltCfg string for current form.
4009
4010 @param FormSet Form data structure.
4011 @param Form Form data structure.
4012 @param DefaultId The Class of the default.
4013 @param BrowserStorage The input request storage for the questions.
4014
4015 **/
4016 VOID
4017 ExtractAltCfgForForm (
4018 IN FORM_BROWSER_FORMSET *FormSet,
4019 IN FORM_BROWSER_FORM *Form,
4020 IN UINT16 DefaultId,
4021 IN BROWSER_STORAGE *BrowserStorage
4022 )
4023 {
4024 EFI_STATUS Status;
4025 LIST_ENTRY *Link;
4026 CHAR16 *ConfigResp;
4027 CHAR16 *Progress;
4028 CHAR16 *Result;
4029 BROWSER_STORAGE *Storage;
4030 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
4031 FORMSET_STORAGE *FormSetStorage;
4032
4033 //
4034 // Check whether has get AltCfg string for this formset.
4035 // If yes, no need to get AltCfg for form.
4036 //
4037 Link = GetFirstNode (&FormSet->StorageListHead);
4038 while (!IsNull (&FormSet->StorageListHead, Link)) {
4039 FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
4040 Storage = FormSetStorage->BrowserStorage;
4041 Link = GetNextNode (&FormSet->StorageListHead, Link);
4042 if (BrowserStorage != NULL && BrowserStorage != Storage) {
4043 continue;
4044 }
4045
4046 if (Storage->Type != EFI_HII_VARSTORE_EFI_VARIABLE &&
4047 FormSetStorage->ElementCount != 0 &&
4048 FormSetStorage->HasCallAltCfg) {
4049 return;
4050 }
4051 }
4052
4053 //
4054 // Get AltCfg string for each form.
4055 //
4056 Link = GetFirstNode (&Form->ConfigRequestHead);
4057 while (!IsNull (&Form->ConfigRequestHead, Link)) {
4058 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
4059 Link = GetNextNode (&Form->ConfigRequestHead, Link);
4060
4061 Storage = ConfigInfo->Storage;
4062 if (BrowserStorage != NULL && BrowserStorage != Storage) {
4063 continue;
4064 }
4065
4066 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
4067 continue;
4068 }
4069
4070 //
4071 // 1. Skip if there is no RequestElement
4072 //
4073 if (ConfigInfo->ElementCount == 0) {
4074 continue;
4075 }
4076
4077 //
4078 // 2. Get value through hii config routine protocol.
4079 //
4080 Status = mHiiConfigRouting->ExtractConfig (
4081 mHiiConfigRouting,
4082 ConfigInfo->ConfigRequest,
4083 &Progress,
4084 &Result
4085 );
4086 if (EFI_ERROR (Status)) {
4087 continue;
4088 }
4089
4090 //
4091 // 3. Call ConfigRouting GetAltCfg(ConfigRoute, <ConfigResponse>, Guid, Name, DevicePath, AltCfgId, AltCfgResp)
4092 // Get the default configuration string according to the default ID.
4093 //
4094 Status = mHiiConfigRouting->GetAltConfig (
4095 mHiiConfigRouting,
4096 Result,
4097 &Storage->Guid,
4098 Storage->Name,
4099 NULL,
4100 &DefaultId, // it can be NULL to get the current setting.
4101 &ConfigResp
4102 );
4103 FreePool (Result);
4104 if (EFI_ERROR (Status)) {
4105 continue;
4106 }
4107
4108 ConfigInfo->ConfigAltResp = ConfigResp;
4109 }
4110 }
4111
4112 /**
4113 Clean AltCfg string for current form.
4114
4115 @param Form Form data structure.
4116
4117 **/
4118 VOID
4119 CleanAltCfgForForm (
4120 IN FORM_BROWSER_FORM *Form
4121 )
4122 {
4123 LIST_ENTRY *Link;
4124 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
4125
4126 Link = GetFirstNode (&Form->ConfigRequestHead);
4127 while (!IsNull (&Form->ConfigRequestHead, Link)) {
4128 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
4129 Link = GetNextNode (&Form->ConfigRequestHead, Link);
4130
4131 if (ConfigInfo->ConfigAltResp != NULL) {
4132 FreePool (ConfigInfo->ConfigAltResp);
4133 ConfigInfo->ConfigAltResp = NULL;
4134 }
4135 }
4136 }
4137
4138 /**
4139 Get AltCfg string for current formset.
4140
4141 @param FormSet Form data structure.
4142 @param DefaultId The Class of the default.
4143 @param BrowserStorage The input request storage for the questions.
4144
4145 **/
4146 VOID
4147 ExtractAltCfgForFormSet (
4148 IN FORM_BROWSER_FORMSET *FormSet,
4149 IN UINT16 DefaultId,
4150 IN BROWSER_STORAGE *BrowserStorage
4151 )
4152 {
4153 EFI_STATUS Status;
4154 LIST_ENTRY *Link;
4155 CHAR16 *ConfigResp;
4156 CHAR16 *Progress;
4157 CHAR16 *Result;
4158 BROWSER_STORAGE *Storage;
4159 FORMSET_STORAGE *FormSetStorage;
4160
4161 Link = GetFirstNode (&FormSet->StorageListHead);
4162 while (!IsNull (&FormSet->StorageListHead, Link)) {
4163 FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
4164 Storage = FormSetStorage->BrowserStorage;
4165 Link = GetNextNode (&FormSet->StorageListHead, Link);
4166
4167 if (BrowserStorage != NULL && BrowserStorage != Storage) {
4168 continue;
4169 }
4170
4171 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
4172 continue;
4173 }
4174
4175 //
4176 // 1. Skip if there is no RequestElement
4177 //
4178 if (FormSetStorage->ElementCount == 0) {
4179 continue;
4180 }
4181
4182 FormSetStorage->HasCallAltCfg = TRUE;
4183
4184 //
4185 // 2. Get value through hii config routine protocol.
4186 //
4187 Status = mHiiConfigRouting->ExtractConfig (
4188 mHiiConfigRouting,
4189 FormSetStorage->ConfigRequest,
4190 &Progress,
4191 &Result
4192 );
4193 if (EFI_ERROR (Status)) {
4194 continue;
4195 }
4196
4197 //
4198 // 3. Call ConfigRouting GetAltCfg(ConfigRoute, <ConfigResponse>, Guid, Name, DevicePath, AltCfgId, AltCfgResp)
4199 // Get the default configuration string according to the default ID.
4200 //
4201 Status = mHiiConfigRouting->GetAltConfig (
4202 mHiiConfigRouting,
4203 Result,
4204 &Storage->Guid,
4205 Storage->Name,
4206 NULL,
4207 &DefaultId, // it can be NULL to get the current setting.
4208 &ConfigResp
4209 );
4210
4211 FreePool (Result);
4212 if (EFI_ERROR (Status)) {
4213 continue;
4214 }
4215
4216 FormSetStorage->ConfigAltResp = ConfigResp;
4217 }
4218
4219 }
4220
4221 /**
4222 Clean AltCfg string for current formset.
4223
4224 @param FormSet Form data structure.
4225
4226 **/
4227 VOID
4228 CleanAltCfgForFormSet (
4229 IN FORM_BROWSER_FORMSET *FormSet
4230 )
4231 {
4232 LIST_ENTRY *Link;
4233 FORMSET_STORAGE *FormSetStorage;
4234
4235 Link = GetFirstNode (&FormSet->StorageListHead);
4236 while (!IsNull (&FormSet->StorageListHead, Link)) {
4237 FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
4238 Link = GetNextNode (&FormSet->StorageListHead, Link);
4239
4240 if (FormSetStorage->ConfigAltResp != NULL) {
4241 FreePool (FormSetStorage->ConfigAltResp);
4242 FormSetStorage->ConfigAltResp = NULL;
4243 }
4244
4245 FormSetStorage->HasCallAltCfg = FALSE;
4246 }
4247 }
4248
4249 /**
4250 Reset Questions to their initial value or default value in a Form, Formset or System.
4251
4252 GetDefaultValueScope parameter decides which questions will reset
4253 to its default value.
4254
4255 @param FormSet FormSet data structure.
4256 @param Form Form data structure.
4257 @param DefaultId The Class of the default.
4258 @param SettingScope Setting Scope for Default action.
4259 @param GetDefaultValueScope Get default value scope.
4260 @param Storage Get default value only for this storage.
4261 @param RetrieveValueFirst Whether call the retrieve call back to
4262 get the initial value before get default
4263 value.
4264 @param SkipGetAltCfg Whether skip the get altcfg string process.
4265
4266 @retval EFI_SUCCESS The function completed successfully.
4267 @retval EFI_UNSUPPORTED Unsupport SettingScope.
4268
4269 **/
4270 EFI_STATUS
4271 ExtractDefault (
4272 IN FORM_BROWSER_FORMSET *FormSet,
4273 IN FORM_BROWSER_FORM *Form,
4274 IN UINT16 DefaultId,
4275 IN BROWSER_SETTING_SCOPE SettingScope,
4276 IN BROWSER_GET_DEFAULT_VALUE GetDefaultValueScope,
4277 IN BROWSER_STORAGE *Storage OPTIONAL,
4278 IN BOOLEAN RetrieveValueFirst,
4279 IN BOOLEAN SkipGetAltCfg
4280 )
4281 {
4282 EFI_STATUS Status;
4283 LIST_ENTRY *FormLink;
4284 LIST_ENTRY *Link;
4285 FORM_BROWSER_STATEMENT *Question;
4286 FORM_BROWSER_FORMSET *LocalFormSet;
4287 FORM_BROWSER_FORMSET *OldFormSet;
4288
4289 Status = EFI_SUCCESS;
4290
4291 //
4292 // Check the supported setting level.
4293 //
4294 if (SettingScope >= MaxLevel || GetDefaultValueScope >= GetDefaultForMax) {
4295 return EFI_UNSUPPORTED;
4296 }
4297
4298 if (GetDefaultValueScope == GetDefaultForStorage && Storage == NULL) {
4299 return EFI_UNSUPPORTED;
4300 }
4301
4302 if (SettingScope == FormLevel) {
4303 //
4304 // Prepare the AltCfg String for form.
4305 //
4306 if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
4307 ExtractAltCfgForForm (FormSet, Form, DefaultId, Storage);
4308 }
4309
4310 //
4311 // Extract Form default
4312 //
4313 Link = GetFirstNode (&Form->StatementListHead);
4314 while (!IsNull (&Form->StatementListHead, Link)) {
4315 Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
4316 Link = GetNextNode (&Form->StatementListHead, Link);
4317
4318 //
4319 // If get default value only for this storage, check the storage first.
4320 //
4321 if ((GetDefaultValueScope == GetDefaultForStorage) && (Question->Storage != Storage)) {
4322 continue;
4323 }
4324
4325 //
4326 // If get default value only for no storage question, just skip the question which has storage.
4327 //
4328 if ((GetDefaultValueScope == GetDefaultForNoStorage) && (Question->Storage != NULL)) {
4329 continue;
4330 }
4331
4332 //
4333 // If Question is disabled, don't reset it to default
4334 //
4335 if (Question->Expression != NULL) {
4336 if (EvaluateExpressionList(Question->Expression, TRUE, FormSet, Form) == ExpressDisable) {
4337 continue;
4338 }
4339 }
4340
4341 if (RetrieveValueFirst) {
4342 //
4343 // Call the Retrieve call back to get the initial question value.
4344 //
4345 Status = ProcessRetrieveForQuestion(FormSet->ConfigAccess, Question, FormSet);
4346 }
4347
4348 //
4349 // If not request to get the initial value or get initial value fail, then get default value.
4350 //
4351 if (!RetrieveValueFirst || EFI_ERROR (Status)) {
4352 Status = GetQuestionDefault (FormSet, Form, Question, DefaultId);
4353 if (EFI_ERROR (Status)) {
4354 continue;
4355 }
4356 }
4357
4358 //
4359 // Synchronize Buffer storage's Edit buffer
4360 //
4361 if ((Question->Storage != NULL) &&
4362 (Question->Storage->Type != EFI_HII_VARSTORE_EFI_VARIABLE)) {
4363 SetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
4364 }
4365 }
4366
4367 //
4368 // Clean the AltCfg String.
4369 //
4370 if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
4371 CleanAltCfgForForm(Form);
4372 }
4373 } else if (SettingScope == FormSetLevel) {
4374 //
4375 // Prepare the AltCfg String for formset.
4376 //
4377 if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
4378 ExtractAltCfgForFormSet (FormSet, DefaultId, Storage);
4379 }
4380
4381 FormLink = GetFirstNode (&FormSet->FormListHead);
4382 while (!IsNull (&FormSet->FormListHead, FormLink)) {
4383 Form = FORM_BROWSER_FORM_FROM_LINK (FormLink);
4384 ExtractDefault (FormSet, Form, DefaultId, FormLevel, GetDefaultValueScope, Storage, RetrieveValueFirst, SkipGetAltCfg);
4385 FormLink = GetNextNode (&FormSet->FormListHead, FormLink);
4386 }
4387
4388 //
4389 // Clean the AltCfg String.
4390 //
4391 if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
4392 CleanAltCfgForFormSet (FormSet);
4393 }
4394 } else if (SettingScope == SystemLevel) {
4395 //
4396 // Preload all Hii formset.
4397 //
4398 LoadAllHiiFormset();
4399
4400 OldFormSet = mSystemLevelFormSet;
4401
4402 //
4403 // Set Default Value for each FormSet in the maintain list.
4404 //
4405 Link = GetFirstNode (&gBrowserFormSetList);
4406 while (!IsNull (&gBrowserFormSetList, Link)) {
4407 LocalFormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
4408 Link = GetNextNode (&gBrowserFormSetList, Link);
4409 if (!ValidateFormSet(LocalFormSet)) {
4410 continue;
4411 }
4412
4413 mSystemLevelFormSet = LocalFormSet;
4414
4415 ExtractDefault (LocalFormSet, NULL, DefaultId, FormSetLevel, GetDefaultValueScope, Storage, RetrieveValueFirst, SkipGetAltCfg);
4416 }
4417
4418 mSystemLevelFormSet = OldFormSet;
4419 }
4420
4421 return EFI_SUCCESS;
4422 }
4423
4424
4425 /**
4426 Validate whether this question's value has changed.
4427
4428 @param FormSet FormSet data structure.
4429 @param Form Form data structure.
4430 @param Question Question to be initialized.
4431 @param GetValueFrom Where to get value, may from editbuffer, buffer or hii driver.
4432
4433 @retval TRUE Question's value has changed.
4434 @retval FALSE Question's value has not changed
4435
4436 **/
4437 BOOLEAN
4438 IsQuestionValueChanged (
4439 IN FORM_BROWSER_FORMSET *FormSet,
4440 IN FORM_BROWSER_FORM *Form,
4441 IN OUT FORM_BROWSER_STATEMENT *Question,
4442 IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
4443 )
4444 {
4445 EFI_HII_VALUE BackUpValue;
4446 CHAR8 *BackUpBuffer;
4447 EFI_HII_VALUE BackUpValue2;
4448 CHAR8 *BackUpBuffer2;
4449 EFI_STATUS Status;
4450 BOOLEAN ValueChanged;
4451 UINTN BufferWidth;
4452
4453 //
4454 // For quetion without storage, always mark it as data not changed.
4455 //
4456 if (Question->Storage == NULL && Question->Operand != EFI_IFR_TIME_OP && Question->Operand != EFI_IFR_DATE_OP) {
4457 return FALSE;
4458 }
4459
4460 BackUpBuffer = NULL;
4461 BackUpBuffer2 = NULL;
4462 ValueChanged = FALSE;
4463
4464 switch (Question->Operand) {
4465 case EFI_IFR_ORDERED_LIST_OP:
4466 BufferWidth = Question->StorageWidth;
4467 BackUpBuffer = AllocateCopyPool (BufferWidth, Question->BufferValue);
4468 ASSERT (BackUpBuffer != NULL);
4469 break;
4470
4471 case EFI_IFR_STRING_OP:
4472 case EFI_IFR_PASSWORD_OP:
4473 BufferWidth = (UINTN) Question->Maximum * sizeof (CHAR16);
4474 BackUpBuffer = AllocateCopyPool (BufferWidth, Question->BufferValue);
4475 ASSERT (BackUpBuffer != NULL);
4476 break;
4477
4478 default:
4479 BufferWidth = 0;
4480 break;
4481 }
4482 CopyMem (&BackUpValue, &Question->HiiValue, sizeof (EFI_HII_VALUE));
4483
4484 if (GetValueFrom == GetSetValueWithBothBuffer) {
4485 Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
4486 ASSERT_EFI_ERROR(Status);
4487
4488 switch (Question->Operand) {
4489 case EFI_IFR_ORDERED_LIST_OP:
4490 BufferWidth = Question->StorageWidth;
4491 BackUpBuffer2 = AllocateCopyPool (BufferWidth, Question->BufferValue);
4492 ASSERT (BackUpBuffer2 != NULL);
4493 break;
4494
4495 case EFI_IFR_STRING_OP:
4496 case EFI_IFR_PASSWORD_OP:
4497 BufferWidth = (UINTN) Question->Maximum * sizeof (CHAR16);
4498 BackUpBuffer2 = AllocateCopyPool (BufferWidth, Question->BufferValue);
4499 ASSERT (BackUpBuffer2 != NULL);
4500 break;
4501
4502 default:
4503 BufferWidth = 0;
4504 break;
4505 }
4506 CopyMem (&BackUpValue2, &Question->HiiValue, sizeof (EFI_HII_VALUE));
4507
4508 Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
4509 ASSERT_EFI_ERROR(Status);
4510
4511 if (CompareMem (&BackUpValue2, &Question->HiiValue, sizeof (EFI_HII_VALUE)) != 0 ||
4512 CompareMem (BackUpBuffer2, Question->BufferValue, BufferWidth) != 0) {
4513 ValueChanged = TRUE;
4514 }
4515 } else {
4516 Status = GetQuestionValue (FormSet, Form, Question, GetValueFrom);
4517 ASSERT_EFI_ERROR(Status);
4518
4519 if (CompareMem (&BackUpValue, &Question->HiiValue, sizeof (EFI_HII_VALUE)) != 0 ||
4520 CompareMem (BackUpBuffer, Question->BufferValue, BufferWidth) != 0) {
4521 ValueChanged = TRUE;
4522 }
4523 }
4524
4525 CopyMem (&Question->HiiValue, &BackUpValue, sizeof (EFI_HII_VALUE));
4526 if (BackUpBuffer != NULL) {
4527 CopyMem (Question->BufferValue, BackUpBuffer, BufferWidth);
4528 FreePool (BackUpBuffer);
4529 }
4530
4531 if (BackUpBuffer2 != NULL) {
4532 FreePool (BackUpBuffer2);
4533 }
4534
4535 Question->ValueChanged = ValueChanged;
4536
4537 return ValueChanged;
4538 }
4539
4540 /**
4541 Initialize Question's Edit copy from Storage.
4542
4543 @param Selection Selection contains the information about
4544 the Selection, form and formset to be displayed.
4545 Selection action may be updated in retrieve callback.
4546 If Selection is NULL, only initialize Question value.
4547 @param FormSet FormSet data structure.
4548 @param Form Form data structure.
4549
4550 @retval EFI_SUCCESS The function completed successfully.
4551
4552 **/
4553 EFI_STATUS
4554 LoadFormConfig (
4555 IN OUT UI_MENU_SELECTION *Selection,
4556 IN FORM_BROWSER_FORMSET *FormSet,
4557 IN FORM_BROWSER_FORM *Form
4558 )
4559 {
4560 EFI_STATUS Status;
4561 LIST_ENTRY *Link;
4562 FORM_BROWSER_STATEMENT *Question;
4563
4564 Link = GetFirstNode (&Form->StatementListHead);
4565 while (!IsNull (&Form->StatementListHead, Link)) {
4566 Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
4567
4568 //
4569 // Initialize local copy of Value for each Question
4570 //
4571 if (Question->Operand == EFI_IFR_PASSWORD_OP && (Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK)== 0) {
4572 Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithHiiDriver);
4573 } else {
4574 Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
4575 }
4576 if (EFI_ERROR (Status)) {
4577 return Status;
4578 }
4579
4580 if ((Question->Operand == EFI_IFR_STRING_OP) || (Question->Operand == EFI_IFR_PASSWORD_OP)) {
4581 HiiSetString (FormSet->HiiHandle, Question->HiiValue.Value.string, (CHAR16*)Question->BufferValue, NULL);
4582 }
4583
4584 Link = GetNextNode (&Form->StatementListHead, Link);
4585 }
4586
4587 return EFI_SUCCESS;
4588 }
4589
4590 /**
4591 Initialize Question's Edit copy from Storage for the whole Formset.
4592
4593 @param Selection Selection contains the information about
4594 the Selection, form and formset to be displayed.
4595 Selection action may be updated in retrieve callback.
4596 If Selection is NULL, only initialize Question value.
4597 @param FormSet FormSet data structure.
4598
4599 @retval EFI_SUCCESS The function completed successfully.
4600
4601 **/
4602 EFI_STATUS
4603 LoadFormSetConfig (
4604 IN OUT UI_MENU_SELECTION *Selection,
4605 IN FORM_BROWSER_FORMSET *FormSet
4606 )
4607 {
4608 EFI_STATUS Status;
4609 LIST_ENTRY *Link;
4610 FORM_BROWSER_FORM *Form;
4611
4612 Link = GetFirstNode (&FormSet->FormListHead);
4613 while (!IsNull (&FormSet->FormListHead, Link)) {
4614 Form = FORM_BROWSER_FORM_FROM_LINK (Link);
4615
4616 //
4617 // Initialize local copy of Value for each Form
4618 //
4619 Status = LoadFormConfig (Selection, FormSet, Form);
4620 if (EFI_ERROR (Status)) {
4621 return Status;
4622 }
4623
4624 Link = GetNextNode (&FormSet->FormListHead, Link);
4625 }
4626
4627 //
4628 // Finished question initialization.
4629 //
4630 FormSet->QuestionInited = TRUE;
4631
4632 return EFI_SUCCESS;
4633 }
4634
4635 /**
4636 Remove the Request element from the Config Request.
4637
4638 @param Storage Pointer to the browser storage.
4639 @param RequestElement The pointer to the Request element.
4640
4641 **/
4642 VOID
4643 RemoveElement (
4644 IN OUT BROWSER_STORAGE *Storage,
4645 IN CHAR16 *RequestElement
4646 )
4647 {
4648 CHAR16 *NewStr;
4649 CHAR16 *DestStr;
4650
4651 ASSERT (Storage->ConfigRequest != NULL && RequestElement != NULL);
4652
4653 NewStr = StrStr (Storage->ConfigRequest, RequestElement);
4654
4655 if (NewStr == NULL) {
4656 return;
4657 }
4658
4659 //
4660 // Remove this element from this ConfigRequest.
4661 //
4662 DestStr = NewStr;
4663 NewStr += StrLen (RequestElement);
4664 CopyMem (DestStr, NewStr, StrSize (NewStr));
4665
4666 Storage->SpareStrLen += StrLen (RequestElement);
4667 }
4668
4669 /**
4670 Adjust config request in storage, remove the request elements existed in the input ConfigRequest.
4671
4672 @param Storage Pointer to the formset storage.
4673 @param ConfigRequest The pointer to the Request element.
4674
4675 **/
4676 VOID
4677 RemoveConfigRequest (
4678 FORMSET_STORAGE *Storage,
4679 CHAR16 *ConfigRequest
4680 )
4681 {
4682 CHAR16 *RequestElement;
4683 CHAR16 *NextRequestElement;
4684 CHAR16 *SearchKey;
4685
4686 //
4687 // No request element in it, just return.
4688 //
4689 if (ConfigRequest == NULL) {
4690 return;
4691 }
4692
4693 if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
4694 //
4695 // "&Name1&Name2" section for EFI_HII_VARSTORE_NAME_VALUE storage
4696 //
4697 SearchKey = L"&";
4698 } else {
4699 //
4700 // "&OFFSET=####&WIDTH=####" section for EFI_HII_VARSTORE_BUFFER storage
4701 //
4702 SearchKey = L"&OFFSET";
4703 }
4704
4705 //
4706 // Find SearchKey storage
4707 //
4708 if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
4709 RequestElement = StrStr (ConfigRequest, L"PATH");
4710 ASSERT (RequestElement != NULL);
4711 RequestElement = StrStr (RequestElement, SearchKey);
4712 } else {
4713 RequestElement = StrStr (ConfigRequest, SearchKey);
4714 }
4715
4716 while (RequestElement != NULL) {
4717 //
4718 // +1 to avoid find header itself.
4719 //
4720 NextRequestElement = StrStr (RequestElement + 1, SearchKey);
4721
4722 //
4723 // The last Request element in configRequest string.
4724 //
4725 if (NextRequestElement != NULL) {
4726 //
4727 // Replace "&" with '\0'.
4728 //
4729 *NextRequestElement = L'\0';
4730 }
4731
4732 RemoveElement (Storage->BrowserStorage, RequestElement);
4733
4734 if (NextRequestElement != NULL) {
4735 //
4736 // Restore '&' with '\0' for later used.
4737 //
4738 *NextRequestElement = L'&';
4739 }
4740
4741 RequestElement = NextRequestElement;
4742 }
4743
4744 //
4745 // If no request element remain, just remove the ConfigRequest string.
4746 //
4747 if (StrCmp (Storage->BrowserStorage->ConfigRequest, Storage->ConfigHdr) == 0) {
4748 FreePool (Storage->BrowserStorage->ConfigRequest);
4749 Storage->BrowserStorage->ConfigRequest = NULL;
4750 Storage->BrowserStorage->SpareStrLen = 0;
4751 }
4752 }
4753
4754 /**
4755 Base on the current formset info, clean the ConfigRequest string in browser storage.
4756
4757 @param FormSet Pointer of the FormSet
4758
4759 **/
4760 VOID
4761 CleanBrowserStorage (
4762 IN OUT FORM_BROWSER_FORMSET *FormSet
4763 )
4764 {
4765 LIST_ENTRY *Link;
4766 FORMSET_STORAGE *Storage;
4767
4768 Link = GetFirstNode (&FormSet->StorageListHead);
4769 while (!IsNull (&FormSet->StorageListHead, Link)) {
4770 Storage = FORMSET_STORAGE_FROM_LINK (Link);
4771 Link = GetNextNode (&FormSet->StorageListHead, Link);
4772
4773 if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
4774 if (Storage->ConfigRequest == NULL || Storage->BrowserStorage->ConfigRequest == NULL) {
4775 continue;
4776 }
4777
4778 RemoveConfigRequest (Storage, Storage->ConfigRequest);
4779 } else if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_BUFFER ||
4780 Storage->BrowserStorage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
4781 if (Storage->BrowserStorage->ConfigRequest != NULL) {
4782 FreePool (Storage->BrowserStorage->ConfigRequest);
4783 Storage->BrowserStorage->ConfigRequest = NULL;
4784 }
4785 Storage->BrowserStorage->Initialized = FALSE;
4786 }
4787 }
4788 }
4789
4790 /**
4791 Check whether current element in the ConfigReqeust string.
4792
4793 @param BrowserStorage Storage which includes ConfigReqeust.
4794 @param RequestElement New element need to check.
4795
4796 @retval TRUE The Element is in the ConfigReqeust string.
4797 @retval FALSE The Element not in the configReqeust String.
4798
4799 **/
4800 BOOLEAN
4801 ElementValidation (
4802 BROWSER_STORAGE *BrowserStorage,
4803 CHAR16 *RequestElement
4804 )
4805 {
4806 return StrStr (BrowserStorage->ConfigRequest, RequestElement) != NULL ? TRUE : FALSE;
4807 }
4808
4809 /**
4810 Append the Request element to the Config Request.
4811
4812 @param ConfigRequest Current ConfigRequest info.
4813 @param SpareStrLen Current remain free buffer for config reqeust.
4814 @param RequestElement New Request element.
4815
4816 **/
4817 VOID
4818 AppendConfigRequest (
4819 IN OUT CHAR16 **ConfigRequest,
4820 IN OUT UINTN *SpareStrLen,
4821 IN CHAR16 *RequestElement
4822 )
4823 {
4824 CHAR16 *NewStr;
4825 UINTN StringSize;
4826 UINTN StrLength;
4827
4828 StrLength = StrLen (RequestElement);
4829
4830 //
4831 // Append <RequestElement> to <ConfigRequest>
4832 //
4833 if (StrLength > *SpareStrLen) {
4834 //
4835 // Old String buffer is not sufficient for RequestElement, allocate a new one
4836 //
4837 StringSize = (*ConfigRequest != NULL) ? StrSize (*ConfigRequest) : sizeof (CHAR16);
4838 NewStr = AllocateZeroPool (StringSize + CONFIG_REQUEST_STRING_INCREMENTAL * sizeof (CHAR16));
4839 ASSERT (NewStr != NULL);
4840
4841 if (*ConfigRequest != NULL) {
4842 CopyMem (NewStr, *ConfigRequest, StringSize);
4843 FreePool (*ConfigRequest);
4844 }
4845 *ConfigRequest = NewStr;
4846 *SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
4847 }
4848
4849 StrCat (*ConfigRequest, RequestElement);
4850 *SpareStrLen -= StrLength;
4851 }
4852
4853 /**
4854 Adjust the config request info, remove the request elements which already in AllConfigRequest string.
4855
4856 @param Storage Form set Storage.
4857 @param Request The input request string.
4858 @param RespString Whether the input is ConfigRequest or ConfigResp format.
4859
4860 @retval TRUE Has element not covered by current used elements, need to continue to call ExtractConfig
4861 @retval FALSE All elements covered by current used elements.
4862
4863 **/
4864 BOOLEAN
4865 ConfigRequestAdjust (
4866 IN BROWSER_STORAGE *Storage,
4867 IN CHAR16 *Request,
4868 IN BOOLEAN RespString
4869 )
4870 {
4871 CHAR16 *RequestElement;
4872 CHAR16 *NextRequestElement;
4873 CHAR16 *NextElementBakup;
4874 CHAR16 *SearchKey;
4875 CHAR16 *ValueKey;
4876 BOOLEAN RetVal;
4877 CHAR16 *ConfigRequest;
4878
4879 RetVal = FALSE;
4880 NextElementBakup = NULL;
4881 ValueKey = NULL;
4882
4883 if (Request != NULL) {
4884 ConfigRequest = Request;
4885 } else {
4886 ConfigRequest = Storage->ConfigRequest;
4887 }
4888
4889 if (Storage->ConfigRequest == NULL) {
4890 Storage->ConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
4891 return TRUE;
4892 }
4893
4894 if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
4895 //
4896 // "&Name1&Name2" section for EFI_HII_VARSTORE_NAME_VALUE storage
4897 //
4898 SearchKey = L"&";
4899 } else {
4900 //
4901 // "&OFFSET=####&WIDTH=####" section for EFI_HII_VARSTORE_BUFFER storage
4902 //
4903 SearchKey = L"&OFFSET";
4904 ValueKey = L"&VALUE";
4905 }
4906
4907 //
4908 // Find SearchKey storage
4909 //
4910 if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
4911 RequestElement = StrStr (ConfigRequest, L"PATH");
4912 ASSERT (RequestElement != NULL);
4913 RequestElement = StrStr (RequestElement, SearchKey);
4914 } else {
4915 RequestElement = StrStr (ConfigRequest, SearchKey);
4916 }
4917
4918 while (RequestElement != NULL) {
4919
4920 //
4921 // +1 to avoid find header itself.
4922 //
4923 NextRequestElement = StrStr (RequestElement + 1, SearchKey);
4924
4925 //
4926 // The last Request element in configRequest string.
4927 //
4928 if (NextRequestElement != NULL) {
4929 if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
4930 NextElementBakup = NextRequestElement;
4931 NextRequestElement = StrStr (RequestElement, ValueKey);
4932 ASSERT (NextRequestElement != NULL);
4933 }
4934 //
4935 // Replace "&" with '\0'.
4936 //
4937 *NextRequestElement = L'\0';
4938 } else {
4939 if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
4940 NextElementBakup = NextRequestElement;
4941 NextRequestElement = StrStr (RequestElement, ValueKey);
4942 ASSERT (NextRequestElement != NULL);
4943 //
4944 // Replace "&" with '\0'.
4945 //
4946 *NextRequestElement = L'\0';
4947 }
4948 }
4949
4950 if (!ElementValidation (Storage, RequestElement)) {
4951 //
4952 // Add this element to the Storage->BrowserStorage->AllRequestElement.
4953 //
4954 AppendConfigRequest(&Storage->ConfigRequest, &Storage->SpareStrLen, RequestElement);
4955 RetVal = TRUE;
4956 }
4957
4958 if (NextRequestElement != NULL) {
4959 //
4960 // Restore '&' with '\0' for later used.
4961 //
4962 *NextRequestElement = L'&';
4963 }
4964
4965 if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
4966 RequestElement = NextElementBakup;
4967 } else {
4968 RequestElement = NextRequestElement;
4969 }
4970 }
4971
4972 return RetVal;
4973 }
4974
4975 /**
4976 Fill storage's edit copy with settings requested from Configuration Driver.
4977
4978 @param FormSet FormSet data structure.
4979 @param Storage Buffer Storage.
4980
4981 **/
4982 VOID
4983 LoadStorage (
4984 IN FORM_BROWSER_FORMSET *FormSet,
4985 IN FORMSET_STORAGE *Storage
4986 )
4987 {
4988 EFI_STATUS Status;
4989 EFI_STRING Progress;
4990 EFI_STRING Result;
4991 CHAR16 *StrPtr;
4992 EFI_STRING ConfigRequest;
4993 UINTN StrLen;
4994
4995 ConfigRequest = NULL;
4996
4997 switch (Storage->BrowserStorage->Type) {
4998 case EFI_HII_VARSTORE_EFI_VARIABLE:
4999 return;
5000
5001 case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
5002 if (Storage->BrowserStorage->ConfigRequest != NULL) {
5003 ConfigRequestAdjust(Storage->BrowserStorage, Storage->ConfigRequest, FALSE);
5004 return;
5005 }
5006 break;
5007
5008 case EFI_HII_VARSTORE_BUFFER:
5009 case EFI_HII_VARSTORE_NAME_VALUE:
5010 //
5011 // Skip if there is no RequestElement.
5012 //
5013 if (Storage->ElementCount == 0) {
5014 return;
5015 }
5016
5017 //
5018 // Just update the ConfigRequest, if storage already initialized.
5019 //
5020 if (Storage->BrowserStorage->Initialized) {
5021 ConfigRequestAdjust(Storage->BrowserStorage, Storage->ConfigRequest, FALSE);
5022 return;
5023 }
5024
5025 Storage->BrowserStorage->Initialized = TRUE;
5026 break;
5027
5028 default:
5029 return;
5030 }
5031
5032 if (Storage->BrowserStorage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
5033 //
5034 // Create the config request string to get all fields for this storage.
5035 // Allocate and fill a buffer large enough to hold the <ConfigHdr> template
5036 // followed by "&OFFSET=0&WIDTH=WWWW"followed by a Null-terminator
5037 //
5038 StrLen = StrSize (Storage->ConfigHdr) + 20 * sizeof (CHAR16);
5039 ConfigRequest = AllocateZeroPool (StrLen);
5040 ASSERT (ConfigRequest != NULL);
5041 UnicodeSPrint (
5042 ConfigRequest,
5043 StrLen,
5044 L"%s&OFFSET=0&WIDTH=%04x",
5045 Storage->ConfigHdr,
5046 Storage->BrowserStorage->Size);
5047 } else {
5048 ConfigRequest = Storage->ConfigRequest;
5049 }
5050
5051 //
5052 // Request current settings from Configuration Driver
5053 //
5054 Status = mHiiConfigRouting->ExtractConfig (
5055 mHiiConfigRouting,
5056 ConfigRequest,
5057 &Progress,
5058 &Result
5059 );
5060
5061 //
5062 // If get value fail, extract default from IFR binary
5063 //
5064 if (EFI_ERROR (Status)) {
5065 ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD, FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE, TRUE);
5066 } else {
5067 //
5068 // Convert Result from <ConfigAltResp> to <ConfigResp>
5069 //
5070 StrPtr = StrStr (Result, L"&GUID=");
5071 if (StrPtr != NULL) {
5072 *StrPtr = L'\0';
5073 }
5074
5075 Status = ConfigRespToStorage (Storage->BrowserStorage, Result);
5076 FreePool (Result);
5077 }
5078
5079 Storage->BrowserStorage->ConfigRequest = AllocateCopyPool (StrSize (Storage->ConfigRequest), Storage->ConfigRequest);
5080
5081 //
5082 // Input NULL for ConfigRequest field means sync all fields from editbuffer to buffer.
5083 //
5084 SynchronizeStorage(Storage->BrowserStorage, NULL, TRUE);
5085
5086 if (Storage->BrowserStorage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
5087 if (ConfigRequest != NULL) {
5088 FreePool (ConfigRequest);
5089 }
5090 }
5091 }
5092
5093 /**
5094 Get Value changed status from old question.
5095
5096 @param NewFormSet FormSet data structure.
5097 @param OldQuestion Old question which has value changed.
5098
5099 **/
5100 VOID
5101 SyncStatusForQuestion (
5102 IN OUT FORM_BROWSER_FORMSET *NewFormSet,
5103 IN FORM_BROWSER_STATEMENT *OldQuestion
5104 )
5105 {
5106 LIST_ENTRY *Link;
5107 LIST_ENTRY *QuestionLink;
5108 FORM_BROWSER_FORM *Form;
5109 FORM_BROWSER_STATEMENT *Question;
5110
5111 //
5112 // For each form in one formset.
5113 //
5114 Link = GetFirstNode (&NewFormSet->FormListHead);
5115 while (!IsNull (&NewFormSet->FormListHead, Link)) {
5116 Form = FORM_BROWSER_FORM_FROM_LINK (Link);
5117 Link = GetNextNode (&NewFormSet->FormListHead, Link);
5118
5119 //
5120 // for each question in one form.
5121 //
5122 QuestionLink = GetFirstNode (&Form->StatementListHead);
5123 while (!IsNull (&Form->StatementListHead, QuestionLink)) {
5124 Question = FORM_BROWSER_STATEMENT_FROM_LINK (QuestionLink);
5125 QuestionLink = GetNextNode (&Form->StatementListHead, QuestionLink);
5126
5127 if (Question->QuestionId == OldQuestion->QuestionId) {
5128 Question->ValueChanged = TRUE;
5129 return;
5130 }
5131 }
5132 }
5133 }
5134
5135 /**
5136 Get Value changed status from old formset.
5137
5138 @param NewFormSet FormSet data structure.
5139 @param OldFormSet FormSet data structure.
5140
5141 **/
5142 VOID
5143 SyncStatusForFormSet (
5144 IN OUT FORM_BROWSER_FORMSET *NewFormSet,
5145 IN FORM_BROWSER_FORMSET *OldFormSet
5146 )
5147 {
5148 LIST_ENTRY *Link;
5149 LIST_ENTRY *QuestionLink;
5150 FORM_BROWSER_FORM *Form;
5151 FORM_BROWSER_STATEMENT *Question;
5152
5153 //
5154 // For each form in one formset.
5155 //
5156 Link = GetFirstNode (&OldFormSet->FormListHead);
5157 while (!IsNull (&OldFormSet->FormListHead, Link)) {
5158 Form = FORM_BROWSER_FORM_FROM_LINK (Link);
5159 Link = GetNextNode (&OldFormSet->FormListHead, Link);
5160
5161 //
5162 // for each question in one form.
5163 //
5164 QuestionLink = GetFirstNode (&Form->StatementListHead);
5165 while (!IsNull (&Form->StatementListHead, QuestionLink)) {
5166 Question = FORM_BROWSER_STATEMENT_FROM_LINK (QuestionLink);
5167 QuestionLink = GetNextNode (&Form->StatementListHead, QuestionLink);
5168
5169 if (!Question->ValueChanged) {
5170 continue;
5171 }
5172
5173 //
5174 // Find the same question in new formset and update the value changed flag.
5175 //
5176 SyncStatusForQuestion (NewFormSet, Question);
5177 }
5178 }
5179 }
5180
5181 /**
5182 Get current setting of Questions.
5183
5184 @param FormSet FormSet data structure.
5185
5186 **/
5187 VOID
5188 InitializeCurrentSetting (
5189 IN OUT FORM_BROWSER_FORMSET *FormSet
5190 )
5191 {
5192 LIST_ENTRY *Link;
5193 FORMSET_STORAGE *Storage;
5194 FORM_BROWSER_FORMSET *OldFormSet;
5195
5196 //
5197 // Try to find pre FormSet in the maintain backup list.
5198 // If old formset != NULL, destroy this formset. Add new formset to gBrowserFormSetList.
5199 //
5200 OldFormSet = GetFormSetFromHiiHandle (FormSet->HiiHandle);
5201 if (OldFormSet != NULL) {
5202 SyncStatusForFormSet (FormSet, OldFormSet);
5203 RemoveEntryList (&OldFormSet->Link);
5204 DestroyFormSet (OldFormSet);
5205 }
5206 InsertTailList (&gBrowserFormSetList, &FormSet->Link);
5207
5208 //
5209 // Extract default from IFR binary for no storage questions.
5210 //
5211 ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD, FormSetLevel, GetDefaultForNoStorage, NULL, TRUE, FALSE);
5212
5213 //
5214 // Request current settings from Configuration Driver
5215 //
5216 Link = GetFirstNode (&FormSet->StorageListHead);
5217 while (!IsNull (&FormSet->StorageListHead, Link)) {
5218 Storage = FORMSET_STORAGE_FROM_LINK (Link);
5219
5220 LoadStorage (FormSet, Storage);
5221
5222 Link = GetNextNode (&FormSet->StorageListHead, Link);
5223 }
5224 }
5225
5226
5227 /**
5228 Fetch the Ifr binary data of a FormSet.
5229
5230 @param Handle PackageList Handle
5231 @param FormSetGuid On input, GUID or class GUID of a formset. If not
5232 specified (NULL or zero GUID), take the first
5233 FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
5234 found in package list.
5235 On output, GUID of the formset found(if not NULL).
5236 @param BinaryLength The length of the FormSet IFR binary.
5237 @param BinaryData The buffer designed to receive the FormSet.
5238
5239 @retval EFI_SUCCESS Buffer filled with the requested FormSet.
5240 BufferLength was updated.
5241 @retval EFI_INVALID_PARAMETER The handle is unknown.
5242 @retval EFI_NOT_FOUND A form or FormSet on the requested handle cannot
5243 be found with the requested FormId.
5244
5245 **/
5246 EFI_STATUS
5247 GetIfrBinaryData (
5248 IN EFI_HII_HANDLE Handle,
5249 IN OUT EFI_GUID *FormSetGuid,
5250 OUT UINTN *BinaryLength,
5251 OUT UINT8 **BinaryData
5252 )
5253 {
5254 EFI_STATUS Status;
5255 EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
5256 UINTN BufferSize;
5257 UINT8 *Package;
5258 UINT8 *OpCodeData;
5259 UINT32 Offset;
5260 UINT32 Offset2;
5261 UINT32 PackageListLength;
5262 EFI_HII_PACKAGE_HEADER PackageHeader;
5263 UINT8 Index;
5264 UINT8 NumberOfClassGuid;
5265 BOOLEAN ClassGuidMatch;
5266 EFI_GUID *ClassGuid;
5267 EFI_GUID *ComparingGuid;
5268
5269 OpCodeData = NULL;
5270 Package = NULL;
5271 ZeroMem (&PackageHeader, sizeof (EFI_HII_PACKAGE_HEADER));
5272
5273 //
5274 // if FormSetGuid is NULL or zero GUID, return first Setup FormSet in the package list
5275 //
5276 if (FormSetGuid == NULL) {
5277 ComparingGuid = &gZeroGuid;
5278 } else {
5279 ComparingGuid = FormSetGuid;
5280 }
5281
5282 //
5283 // Get HII PackageList
5284 //
5285 BufferSize = 0;
5286 HiiPackageList = NULL;
5287 Status = mHiiDatabase->ExportPackageLists (mHiiDatabase, Handle, &BufferSize, HiiPackageList);
5288 if (Status == EFI_BUFFER_TOO_SMALL) {
5289 HiiPackageList = AllocatePool (BufferSize);
5290 ASSERT (HiiPackageList != NULL);
5291
5292 Status = mHiiDatabase->ExportPackageLists (mHiiDatabase, Handle, &BufferSize, HiiPackageList);
5293 }
5294 if (EFI_ERROR (Status)) {
5295 return Status;
5296 }
5297 ASSERT (HiiPackageList != NULL);
5298
5299 //
5300 // Get Form package from this HII package List
5301 //
5302 Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
5303 Offset2 = 0;
5304 CopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
5305
5306 ClassGuidMatch = FALSE;
5307 while (Offset < PackageListLength) {
5308 Package = ((UINT8 *) HiiPackageList) + Offset;
5309 CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
5310
5311 if (PackageHeader.Type == EFI_HII_PACKAGE_FORMS) {
5312 //
5313 // Search FormSet in this Form Package
5314 //
5315 Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
5316 while (Offset2 < PackageHeader.Length) {
5317 OpCodeData = Package + Offset2;
5318
5319 if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
5320 //
5321 // Try to compare against formset GUID
5322 //
5323 if (CompareGuid (FormSetGuid, &gZeroGuid) ||
5324 CompareGuid (ComparingGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
5325 break;
5326 }
5327
5328 if (((EFI_IFR_OP_HEADER *) OpCodeData)->Length > OFFSET_OF (EFI_IFR_FORM_SET, Flags)) {
5329 //
5330 // Try to compare against formset class GUID
5331 //
5332 NumberOfClassGuid = (UINT8) (((EFI_IFR_FORM_SET *) OpCodeData)->Flags & 0x3);
5333 ClassGuid = (EFI_GUID *) (OpCodeData + sizeof (EFI_IFR_FORM_SET));
5334 for (Index = 0; Index < NumberOfClassGuid; Index++) {
5335 if (CompareGuid (ComparingGuid, ClassGuid + Index)) {
5336 ClassGuidMatch = TRUE;
5337 break;
5338 }
5339 }
5340 if (ClassGuidMatch) {
5341 break;
5342 }
5343 } else if (ComparingGuid == &gEfiHiiPlatformSetupFormsetGuid) {
5344 ClassGuidMatch = TRUE;
5345 break;
5346 }
5347 }
5348
5349 Offset2 += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
5350 }
5351
5352 if (Offset2 < PackageHeader.Length) {
5353 //
5354 // Target formset found
5355 //
5356 break;
5357 }
5358 }
5359
5360 Offset += PackageHeader.Length;
5361 }
5362
5363 if (Offset >= PackageListLength) {
5364 //
5365 // Form package not found in this Package List
5366 //
5367 FreePool (HiiPackageList);
5368 return EFI_NOT_FOUND;
5369 }
5370
5371 if (FormSetGuid != NULL) {
5372 //
5373 // Return the FormSet GUID
5374 //
5375 CopyMem (FormSetGuid, &((EFI_IFR_FORM_SET *) OpCodeData)->Guid, sizeof (EFI_GUID));
5376 }
5377
5378 //
5379 // To determine the length of a whole FormSet IFR binary, one have to parse all the Opcodes
5380 // in this FormSet; So, here just simply copy the data from start of a FormSet to the end
5381 // of the Form Package.
5382 //
5383 *BinaryLength = PackageHeader.Length - Offset2;
5384 *BinaryData = AllocateCopyPool (*BinaryLength, OpCodeData);
5385
5386 FreePool (HiiPackageList);
5387
5388 if (*BinaryData == NULL) {
5389 return EFI_OUT_OF_RESOURCES;
5390 }
5391
5392 return EFI_SUCCESS;
5393 }
5394
5395
5396 /**
5397 Initialize the internal data structure of a FormSet.
5398
5399 @param Handle PackageList Handle
5400 @param FormSetGuid On input, GUID or class GUID of a formset. If not
5401 specified (NULL or zero GUID), take the first
5402 FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
5403 found in package list.
5404 On output, GUID of the formset found(if not NULL).
5405 @param FormSet FormSet data structure.
5406
5407 @retval EFI_SUCCESS The function completed successfully.
5408 @retval EFI_NOT_FOUND The specified FormSet could not be found.
5409
5410 **/
5411 EFI_STATUS
5412 InitializeFormSet (
5413 IN EFI_HII_HANDLE Handle,
5414 IN OUT EFI_GUID *FormSetGuid,
5415 OUT FORM_BROWSER_FORMSET *FormSet
5416 )
5417 {
5418 EFI_STATUS Status;
5419 EFI_HANDLE DriverHandle;
5420
5421 Status = GetIfrBinaryData (Handle, FormSetGuid, &FormSet->IfrBinaryLength, &FormSet->IfrBinaryData);
5422 if (EFI_ERROR (Status)) {
5423 return Status;
5424 }
5425
5426 FormSet->Signature = FORM_BROWSER_FORMSET_SIGNATURE;
5427 FormSet->HiiHandle = Handle;
5428 CopyMem (&FormSet->Guid, FormSetGuid, sizeof (EFI_GUID));
5429 FormSet->QuestionInited = FALSE;
5430
5431 //
5432 // Retrieve ConfigAccess Protocol associated with this HiiPackageList
5433 //
5434 Status = mHiiDatabase->GetPackageListHandle (mHiiDatabase, Handle, &DriverHandle);
5435 if (EFI_ERROR (Status)) {
5436 return Status;
5437 }
5438 FormSet->DriverHandle = DriverHandle;
5439 Status = gBS->HandleProtocol (
5440 DriverHandle,
5441 &gEfiHiiConfigAccessProtocolGuid,
5442 (VOID **) &FormSet->ConfigAccess
5443 );
5444 if (EFI_ERROR (Status)) {
5445 //
5446 // Configuration Driver don't attach ConfigAccess protocol to its HII package
5447 // list, then there will be no configuration action required
5448 //
5449 FormSet->ConfigAccess = NULL;
5450 }
5451
5452 //
5453 // Parse the IFR binary OpCodes
5454 //
5455 Status = ParseOpCodes (FormSet);
5456
5457 return Status;
5458 }
5459
5460
5461 /**
5462 Save globals used by previous call to SendForm(). SendForm() may be called from
5463 HiiConfigAccess.Callback(), this will cause SendForm() be reentried.
5464 So, save globals of previous call to SendForm() and restore them upon exit.
5465
5466 **/
5467 VOID
5468 SaveBrowserContext (
5469 VOID
5470 )
5471 {
5472 BROWSER_CONTEXT *Context;
5473 FORM_ENTRY_INFO *MenuList;
5474
5475 gBrowserContextCount++;
5476 if (gBrowserContextCount == 1) {
5477 //
5478 // This is not reentry of SendForm(), no context to save
5479 //
5480 return;
5481 }
5482
5483 Context = AllocatePool (sizeof (BROWSER_CONTEXT));
5484 ASSERT (Context != NULL);
5485
5486 Context->Signature = BROWSER_CONTEXT_SIGNATURE;
5487
5488 //
5489 // Save FormBrowser context
5490 //
5491 Context->Selection = gCurrentSelection;
5492 Context->ResetRequired = gResetRequired;
5493 Context->ExitRequired = gExitRequired;
5494 Context->HiiHandle = mCurrentHiiHandle;
5495 Context->FormId = mCurrentFormId;
5496 CopyGuid (&Context->FormSetGuid, &mCurrentFormSetGuid);
5497
5498 //
5499 // Save the menu history data.
5500 //
5501 InitializeListHead(&Context->FormHistoryList);
5502 while (!IsListEmpty (&mPrivateData.FormBrowserEx2.FormViewHistoryHead)) {
5503 MenuList = FORM_ENTRY_INFO_FROM_LINK (mPrivateData.FormBrowserEx2.FormViewHistoryHead.ForwardLink);
5504 RemoveEntryList (&MenuList->Link);
5505
5506 InsertTailList(&Context->FormHistoryList, &MenuList->Link);
5507 }
5508
5509 //
5510 // Insert to FormBrowser context list
5511 //
5512 InsertHeadList (&gBrowserContextList, &Context->Link);
5513 }
5514
5515
5516 /**
5517 Restore globals used by previous call to SendForm().
5518
5519 **/
5520 VOID
5521 RestoreBrowserContext (
5522 VOID
5523 )
5524 {
5525 LIST_ENTRY *Link;
5526 BROWSER_CONTEXT *Context;
5527 FORM_ENTRY_INFO *MenuList;
5528
5529 ASSERT (gBrowserContextCount != 0);
5530 gBrowserContextCount--;
5531 if (gBrowserContextCount == 0) {
5532 //
5533 // This is not reentry of SendForm(), no context to restore
5534 //
5535 return;
5536 }
5537
5538 ASSERT (!IsListEmpty (&gBrowserContextList));
5539
5540 Link = GetFirstNode (&gBrowserContextList);
5541 Context = BROWSER_CONTEXT_FROM_LINK (Link);
5542
5543 //
5544 // Restore FormBrowser context
5545 //
5546 gCurrentSelection = Context->Selection;
5547 gResetRequired = Context->ResetRequired;
5548 gExitRequired = Context->ExitRequired;
5549 mCurrentHiiHandle = Context->HiiHandle;
5550 mCurrentFormId = Context->FormId;
5551 CopyGuid (&mCurrentFormSetGuid, &Context->FormSetGuid);
5552
5553 //
5554 // Restore the menu history data.
5555 //
5556 while (!IsListEmpty (&Context->FormHistoryList)) {
5557 MenuList = FORM_ENTRY_INFO_FROM_LINK (Context->FormHistoryList.ForwardLink);
5558 RemoveEntryList (&MenuList->Link);
5559
5560 InsertTailList(&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &MenuList->Link);
5561 }
5562
5563 //
5564 // Remove from FormBrowser context list
5565 //
5566 RemoveEntryList (&Context->Link);
5567 gBS->FreePool (Context);
5568 }
5569
5570 /**
5571 Find the matched FormSet context in the backup maintain list based on HiiHandle.
5572
5573 @param Handle The Hii Handle.
5574
5575 @return the found FormSet context. If no found, NULL will return.
5576
5577 **/
5578 FORM_BROWSER_FORMSET *
5579 GetFormSetFromHiiHandle (
5580 EFI_HII_HANDLE Handle
5581 )
5582 {
5583 LIST_ENTRY *Link;
5584 FORM_BROWSER_FORMSET *FormSet;
5585
5586 Link = GetFirstNode (&gBrowserFormSetList);
5587 while (!IsNull (&gBrowserFormSetList, Link)) {
5588 FormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
5589 Link = GetNextNode (&gBrowserFormSetList, Link);
5590 if (!ValidateFormSet(FormSet)) {
5591 continue;
5592 }
5593 if (FormSet->HiiHandle == Handle) {
5594 return FormSet;
5595 }
5596 }
5597
5598 return NULL;
5599 }
5600
5601 /**
5602 Check whether the input HII handle is the FormSet that is being used.
5603
5604 @param Handle The Hii Handle.
5605
5606 @retval TRUE HII handle is being used.
5607 @retval FALSE HII handle is not being used.
5608
5609 **/
5610 BOOLEAN
5611 IsHiiHandleInBrowserContext (
5612 EFI_HII_HANDLE Handle
5613 )
5614 {
5615 LIST_ENTRY *Link;
5616 BROWSER_CONTEXT *Context;
5617
5618 //
5619 // HiiHandle is Current FormSet.
5620 //
5621 if (mCurrentHiiHandle == Handle) {
5622 return TRUE;
5623 }
5624
5625 //
5626 // Check whether HiiHandle is in BrowserContext.
5627 //
5628 Link = GetFirstNode (&gBrowserContextList);
5629 while (!IsNull (&gBrowserContextList, Link)) {
5630 Context = BROWSER_CONTEXT_FROM_LINK (Link);
5631 if (Context->HiiHandle == Handle) {
5632 //
5633 // HiiHandle is in BrowserContext
5634 //
5635 return TRUE;
5636 }
5637 Link = GetNextNode (&gBrowserContextList, Link);
5638 }
5639
5640 return FALSE;
5641 }
5642
5643 /**
5644 Perform Password check.
5645 Passwork may be encrypted by driver that requires the specific check.
5646
5647 @param Form Form where Password Statement is in.
5648 @param Statement Password statement
5649 @param PasswordString Password string to be checked. It may be NULL.
5650 NULL means to restore password.
5651 "" string can be used to checked whether old password does exist.
5652
5653 @return Status Status of Password check.
5654 **/
5655 EFI_STATUS
5656 EFIAPI
5657 PasswordCheck (
5658 IN FORM_DISPLAY_ENGINE_FORM *Form,
5659 IN FORM_DISPLAY_ENGINE_STATEMENT *Statement,
5660 IN EFI_STRING PasswordString OPTIONAL
5661 )
5662 {
5663 EFI_STATUS Status;
5664 EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
5665 EFI_BROWSER_ACTION_REQUEST ActionRequest;
5666 EFI_IFR_TYPE_VALUE IfrTypeValue;
5667 FORM_BROWSER_STATEMENT *Question;
5668
5669 ConfigAccess = gCurrentSelection->FormSet->ConfigAccess;
5670 Question = GetBrowserStatement(Statement);
5671 ASSERT (Question != NULL);
5672
5673 if ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) == EFI_IFR_FLAG_CALLBACK) {
5674 if (ConfigAccess == NULL) {
5675 return EFI_UNSUPPORTED;
5676 }
5677 } else {
5678 if (PasswordString == NULL) {
5679 return EFI_SUCCESS;
5680 }
5681
5682 //
5683 // Check whether has preexisted password.
5684 //
5685 if (PasswordString[0] == 0) {
5686 if (*((CHAR16 *) Question->BufferValue) == 0) {
5687 return EFI_SUCCESS;
5688 } else {
5689 return EFI_NOT_READY;
5690 }
5691 }
5692
5693 //
5694 // Check whether the input password is same as preexisted password.
5695 //
5696 if (StrnCmp (PasswordString, (CHAR16 *) Question->BufferValue, Question->StorageWidth/sizeof (CHAR16)) == 0) {
5697 return EFI_SUCCESS;
5698 } else {
5699 return EFI_NOT_READY;
5700 }
5701 }
5702
5703 //
5704 // Prepare password string in HII database
5705 //
5706 if (PasswordString != NULL) {
5707 IfrTypeValue.string = NewString (PasswordString, gCurrentSelection->FormSet->HiiHandle);
5708 } else {
5709 IfrTypeValue.string = 0;
5710 }
5711
5712 //
5713 // Send password to Configuration Driver for validation
5714 //
5715 Status = ConfigAccess->Callback (
5716 ConfigAccess,
5717 EFI_BROWSER_ACTION_CHANGING,
5718 Question->QuestionId,
5719 Question->HiiValue.Type,
5720 &IfrTypeValue,
5721 &ActionRequest
5722 );
5723
5724 //
5725 // Remove password string from HII database
5726 //
5727 if (PasswordString != NULL) {
5728 DeleteString (IfrTypeValue.string, gCurrentSelection->FormSet->HiiHandle);
5729 }
5730
5731 return Status;
5732 }
5733
5734 /**
5735 Find the registered HotKey based on KeyData.
5736
5737 @param[in] KeyData A pointer to a buffer that describes the keystroke
5738 information for the hot key.
5739
5740 @return The registered HotKey context. If no found, NULL will return.
5741 **/
5742 BROWSER_HOT_KEY *
5743 GetHotKeyFromRegisterList (
5744 IN EFI_INPUT_KEY *KeyData
5745 )
5746 {
5747 LIST_ENTRY *Link;
5748 BROWSER_HOT_KEY *HotKey;
5749
5750 Link = GetFirstNode (&gBrowserHotKeyList);
5751 while (!IsNull (&gBrowserHotKeyList, Link)) {
5752 HotKey = BROWSER_HOT_KEY_FROM_LINK (Link);
5753 if (HotKey->KeyData->ScanCode == KeyData->ScanCode) {
5754 return HotKey;
5755 }
5756 Link = GetNextNode (&gBrowserHotKeyList, Link);
5757 }
5758
5759 return NULL;
5760 }
5761
5762 /**
5763 Configure what scope the hot key will impact.
5764 All hot keys have the same scope. The mixed hot keys with the different level are not supported.
5765 If no scope is set, the default scope will be FormSet level.
5766 After all registered hot keys are removed, previous Scope can reset to another level.
5767
5768 @param[in] Scope Scope level to be set.
5769
5770 @retval EFI_SUCCESS Scope is set correctly.
5771 @retval EFI_INVALID_PARAMETER Scope is not the valid value specified in BROWSER_SETTING_SCOPE.
5772 @retval EFI_UNSPPORTED Scope level is different from current one that the registered hot keys have.
5773
5774 **/
5775 EFI_STATUS
5776 EFIAPI
5777 SetScope (
5778 IN BROWSER_SETTING_SCOPE Scope
5779 )
5780 {
5781 if (Scope >= MaxLevel) {
5782 return EFI_INVALID_PARAMETER;
5783 }
5784
5785 //
5786 // When no hot key registered in system or on the first setting,
5787 // Scope can be set.
5788 //
5789 if (mBrowserScopeFirstSet || IsListEmpty (&gBrowserHotKeyList)) {
5790 gBrowserSettingScope = Scope;
5791 mBrowserScopeFirstSet = FALSE;
5792 } else if (Scope != gBrowserSettingScope) {
5793 return EFI_UNSUPPORTED;
5794 }
5795
5796 return EFI_SUCCESS;
5797 }
5798
5799 /**
5800 Register the hot key with its browser action, or unregistered the hot key.
5801 Only support hot key that is not printable character (control key, function key, etc.).
5802 If the action value is zero, the hot key will be unregistered if it has been registered.
5803 If the same hot key has been registered, the new action and help string will override the previous ones.
5804
5805 @param[in] KeyData A pointer to a buffer that describes the keystroke
5806 information for the hot key. Its type is EFI_INPUT_KEY to
5807 be supported by all ConsoleIn devices.
5808 @param[in] Action Action value that describes what action will be trigged when the hot key is pressed.
5809 @param[in] DefaultId Specifies the type of defaults to retrieve, which is only for DEFAULT action.
5810 @param[in] HelpString Help string that describes the hot key information.
5811 Its value may be NULL for the unregistered hot key.
5812
5813 @retval EFI_SUCCESS Hot key is registered or unregistered.
5814 @retval EFI_INVALID_PARAMETER KeyData is NULL or HelpString is NULL on register.
5815 @retval EFI_NOT_FOUND KeyData is not found to be unregistered.
5816 @retval EFI_UNSUPPORTED Key represents a printable character. It is conflicted with Browser.
5817 **/
5818 EFI_STATUS
5819 EFIAPI
5820 RegisterHotKey (
5821 IN EFI_INPUT_KEY *KeyData,
5822 IN UINT32 Action,
5823 IN UINT16 DefaultId,
5824 IN EFI_STRING HelpString OPTIONAL
5825 )
5826 {
5827 BROWSER_HOT_KEY *HotKey;
5828
5829 //
5830 // Check input parameters.
5831 //
5832 if (KeyData == NULL || KeyData->UnicodeChar != CHAR_NULL ||
5833 (Action != BROWSER_ACTION_UNREGISTER && HelpString == NULL)) {
5834 return EFI_INVALID_PARAMETER;
5835 }
5836
5837 //
5838 // Check whether the input KeyData is in BrowserHotKeyList.
5839 //
5840 HotKey = GetHotKeyFromRegisterList (KeyData);
5841
5842 //
5843 // Unregister HotKey
5844 //
5845 if (Action == BROWSER_ACTION_UNREGISTER) {
5846 if (HotKey != NULL) {
5847 //
5848 // The registered HotKey is found.
5849 // Remove it from List, and free its resource.
5850 //
5851 RemoveEntryList (&HotKey->Link);
5852 FreePool (HotKey->KeyData);
5853 FreePool (HotKey->HelpString);
5854 return EFI_SUCCESS;
5855 } else {
5856 //
5857 // The registered HotKey is not found.
5858 //
5859 return EFI_NOT_FOUND;
5860 }
5861 }
5862
5863 //
5864 // Register HotKey into List.
5865 //
5866 if (HotKey == NULL) {
5867 //
5868 // Create new Key, and add it into List.
5869 //
5870 HotKey = AllocateZeroPool (sizeof (BROWSER_HOT_KEY));
5871 ASSERT (HotKey != NULL);
5872 HotKey->Signature = BROWSER_HOT_KEY_SIGNATURE;
5873 HotKey->KeyData = AllocateCopyPool (sizeof (EFI_INPUT_KEY), KeyData);
5874 InsertTailList (&gBrowserHotKeyList, &HotKey->Link);
5875 }
5876
5877 //
5878 // Fill HotKey information.
5879 //
5880 HotKey->Action = Action;
5881 HotKey->DefaultId = DefaultId;
5882 if (HotKey->HelpString != NULL) {
5883 FreePool (HotKey->HelpString);
5884 }
5885 HotKey->HelpString = AllocateCopyPool (StrSize (HelpString), HelpString);
5886
5887 return EFI_SUCCESS;
5888 }
5889
5890 /**
5891 Register Exit handler function.
5892 When more than one handler function is registered, the latter one will override the previous one.
5893 When NULL handler is specified, the previous Exit handler will be unregistered.
5894
5895 @param[in] Handler Pointer to handler function.
5896
5897 **/
5898 VOID
5899 EFIAPI
5900 RegiserExitHandler (
5901 IN EXIT_HANDLER Handler
5902 )
5903 {
5904 ExitHandlerFunction = Handler;
5905 return;
5906 }
5907
5908 /**
5909 Check whether the browser data has been modified.
5910
5911 @retval TRUE Browser data is modified.
5912 @retval FALSE No browser data is modified.
5913
5914 **/
5915 BOOLEAN
5916 EFIAPI
5917 IsBrowserDataModified (
5918 VOID
5919 )
5920 {
5921 LIST_ENTRY *Link;
5922 FORM_BROWSER_FORMSET *FormSet;
5923
5924 switch (gBrowserSettingScope) {
5925 case FormLevel:
5926 if (gCurrentSelection == NULL) {
5927 return FALSE;
5928 }
5929 return IsNvUpdateRequiredForForm (gCurrentSelection->Form);
5930
5931 case FormSetLevel:
5932 if (gCurrentSelection == NULL) {
5933 return FALSE;
5934 }
5935 return IsNvUpdateRequiredForFormSet (gCurrentSelection->FormSet);
5936
5937 case SystemLevel:
5938 Link = GetFirstNode (&gBrowserFormSetList);
5939 while (!IsNull (&gBrowserFormSetList, Link)) {
5940 FormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
5941 if (!ValidateFormSet(FormSet)) {
5942 continue;
5943 }
5944
5945 if (IsNvUpdateRequiredForFormSet (FormSet)) {
5946 return TRUE;
5947 }
5948 Link = GetNextNode (&gBrowserFormSetList, Link);
5949 }
5950 return FALSE;
5951
5952 default:
5953 return FALSE;
5954 }
5955 }
5956
5957 /**
5958 Execute the action requested by the Action parameter.
5959
5960 @param[in] Action Execute the request action.
5961 @param[in] DefaultId The default Id info when need to load default value. Only used when Action is BROWSER_ACTION_DEFAULT.
5962
5963 @retval EFI_SUCCESS Execute the request action succss.
5964 @retval EFI_INVALID_PARAMETER The input action value is invalid.
5965
5966 **/
5967 EFI_STATUS
5968 EFIAPI
5969 ExecuteAction (
5970 IN UINT32 Action,
5971 IN UINT16 DefaultId
5972 )
5973 {
5974 EFI_STATUS Status;
5975 FORM_BROWSER_FORMSET *FormSet;
5976 FORM_BROWSER_FORM *Form;
5977
5978 if (gBrowserSettingScope < SystemLevel && gCurrentSelection == NULL) {
5979 return EFI_NOT_READY;
5980 }
5981
5982 Status = EFI_SUCCESS;
5983 FormSet = NULL;
5984 Form = NULL;
5985 if (gBrowserSettingScope < SystemLevel) {
5986 FormSet = gCurrentSelection->FormSet;
5987 Form = gCurrentSelection->Form;
5988 }
5989
5990 //
5991 // Executet the discard action.
5992 //
5993 if ((Action & BROWSER_ACTION_DISCARD) != 0) {
5994 Status = DiscardForm (FormSet, Form, gBrowserSettingScope);
5995 if (EFI_ERROR (Status)) {
5996 return Status;
5997 }
5998 }
5999
6000 //
6001 // Executet the difault action.
6002 //
6003 if ((Action & BROWSER_ACTION_DEFAULT) != 0) {
6004 Status = ExtractDefault (FormSet, Form, DefaultId, gBrowserSettingScope, GetDefaultForAll, NULL, FALSE, FALSE);
6005 if (EFI_ERROR (Status)) {
6006 return Status;
6007 }
6008 UpdateStatementStatus (FormSet, Form, gBrowserSettingScope);
6009 }
6010
6011 //
6012 // Executet the submit action.
6013 //
6014 if ((Action & BROWSER_ACTION_SUBMIT) != 0) {
6015 Status = SubmitForm (FormSet, Form, gBrowserSettingScope);
6016 if (EFI_ERROR (Status)) {
6017 return Status;
6018 }
6019 }
6020
6021 //
6022 // Executet the reset action.
6023 //
6024 if ((Action & BROWSER_ACTION_RESET) != 0) {
6025 gResetRequired = TRUE;
6026 }
6027
6028 //
6029 // Executet the exit action.
6030 //
6031 if ((Action & BROWSER_ACTION_EXIT) != 0) {
6032 DiscardForm (FormSet, Form, gBrowserSettingScope);
6033 if (gBrowserSettingScope == SystemLevel) {
6034 if (ExitHandlerFunction != NULL) {
6035 ExitHandlerFunction ();
6036 }
6037 }
6038
6039 gExitRequired = TRUE;
6040 }
6041
6042 return Status;
6043 }
6044
6045 /**
6046 Create reminder to let user to choose save or discard the changed browser data.
6047 Caller can use it to actively check the changed browser data.
6048
6049 @retval BROWSER_NO_CHANGES No browser data is changed.
6050 @retval BROWSER_SAVE_CHANGES The changed browser data is saved.
6051 @retval BROWSER_DISCARD_CHANGES The changed browser data is discard.
6052 @retval BROWSER_KEEP_CURRENT Browser keep current changes.
6053
6054 **/
6055 UINT32
6056 EFIAPI
6057 SaveReminder (
6058 VOID
6059 )
6060 {
6061 LIST_ENTRY *Link;
6062 FORM_BROWSER_FORMSET *FormSet;
6063 BOOLEAN IsDataChanged;
6064 UINT32 DataSavedAction;
6065 UINT32 ConfirmRet;
6066
6067 DataSavedAction = BROWSER_NO_CHANGES;
6068 IsDataChanged = FALSE;
6069 Link = GetFirstNode (&gBrowserFormSetList);
6070 while (!IsNull (&gBrowserFormSetList, Link)) {
6071 FormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
6072 Link = GetNextNode (&gBrowserFormSetList, Link);
6073 if (!ValidateFormSet(FormSet)) {
6074 continue;
6075 }
6076 if (IsNvUpdateRequiredForFormSet (FormSet)) {
6077 IsDataChanged = TRUE;
6078 break;
6079 }
6080 }
6081
6082 //
6083 // No data is changed. No save is required.
6084 //
6085 if (!IsDataChanged) {
6086 return DataSavedAction;
6087 }
6088
6089 //
6090 // If data is changed, prompt user to save or discard it.
6091 //
6092 do {
6093 ConfirmRet = (UINT32) mFormDisplay->ConfirmDataChange();
6094
6095 if (ConfirmRet == BROWSER_ACTION_SUBMIT) {
6096 SubmitForm (NULL, NULL, SystemLevel);
6097 DataSavedAction = BROWSER_SAVE_CHANGES;
6098 break;
6099 } else if (ConfirmRet == BROWSER_ACTION_DISCARD) {
6100 DiscardForm (NULL, NULL, SystemLevel);
6101 DataSavedAction = BROWSER_DISCARD_CHANGES;
6102 break;
6103 } else if (ConfirmRet == BROWSER_ACTION_NONE) {
6104 DataSavedAction = BROWSER_KEEP_CURRENT;
6105 break;
6106 }
6107 } while (1);
6108
6109 return DataSavedAction;
6110 }
6111
6112 /**
6113 Check whether the Reset Required for the browser
6114
6115 @retval TRUE Browser required to reset after exit.
6116 @retval FALSE Browser not need to reset after exit.
6117
6118 **/
6119 BOOLEAN
6120 EFIAPI
6121 IsResetRequired (
6122 VOID
6123 )
6124 {
6125 return gResetRequired;
6126 }
6127
EFI Development Kit II mirror for PVE