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Add PI complied S3 implementation. Include the Opcode definition and EFI_BOOT_SCRIPT_...
[mirror_edk2.git] / MdeModulePkg / Universal / SetupBrowserDxe / IfrParse.c
1 /** @file
2 Parser for IFR binary encoding.
3
4 Copyright (c) 2007 - 2009, Intel Corporation
5 All rights reserved. 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 UINT16 mStatementIndex;
18 UINT16 mExpressionOpCodeIndex;
19
20 BOOLEAN mInScopeSubtitle;
21 BOOLEAN mInScopeSuppress;
22 BOOLEAN mInScopeGrayOut;
23 BOOLEAN mInScopeDisable;
24 FORM_EXPRESSION *mSuppressExpression;
25 FORM_EXPRESSION *mGrayOutExpression;
26 FORM_EXPRESSION *mDisableExpression;
27
28 /**
29 Initialize Statement header members.
30
31 @param OpCodeData Pointer of the raw OpCode data.
32 @param FormSet Pointer of the current FormSe.
33 @param Form Pointer of the current Form.
34
35 @return The Statement.
36
37 **/
38 FORM_BROWSER_STATEMENT *
39 CreateStatement (
40 IN UINT8 *OpCodeData,
41 IN OUT FORM_BROWSER_FORMSET *FormSet,
42 IN OUT FORM_BROWSER_FORM *Form
43 )
44 {
45 FORM_BROWSER_STATEMENT *Statement;
46 EFI_IFR_STATEMENT_HEADER *StatementHdr;
47
48 if (Form == NULL) {
49 //
50 // We are currently not in a Form Scope, so just skip this Statement
51 //
52 return NULL;
53 }
54
55 Statement = &FormSet->StatementBuffer[mStatementIndex];
56 mStatementIndex++;
57
58 InitializeListHead (&Statement->DefaultListHead);
59 InitializeListHead (&Statement->OptionListHead);
60 InitializeListHead (&Statement->InconsistentListHead);
61 InitializeListHead (&Statement->NoSubmitListHead);
62
63 Statement->Signature = FORM_BROWSER_STATEMENT_SIGNATURE;
64
65 Statement->Operand = ((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode;
66
67 StatementHdr = (EFI_IFR_STATEMENT_HEADER *) (OpCodeData + sizeof (EFI_IFR_OP_HEADER));
68 CopyMem (&Statement->Prompt, &StatementHdr->Prompt, sizeof (EFI_STRING_ID));
69 CopyMem (&Statement->Help, &StatementHdr->Help, sizeof (EFI_STRING_ID));
70
71 if (mInScopeSuppress) {
72 Statement->SuppressExpression = mSuppressExpression;
73 }
74
75 if (mInScopeGrayOut) {
76 Statement->GrayOutExpression = mGrayOutExpression;
77 }
78
79
80 if (mInScopeDisable) {
81 Statement->DisableExpression = mDisableExpression;
82 }
83
84 Statement->InSubtitle = mInScopeSubtitle;
85
86 //
87 // Insert this Statement into current Form
88 //
89 InsertTailList (&Form->StatementListHead, &Statement->Link);
90
91 return Statement;
92 }
93
94 /**
95 Convert a numeric value to a Unicode String and insert it to String Package.
96 This string is used as the Unicode Name for the EFI Variable. This is to support
97 the deprecated vareqval opcode.
98
99 @param FormSet The FormSet.
100 @param Statement The numeric question whose VarStoreInfo.VarName is the
101 numeric value which is used to produce the Unicode Name
102 for the EFI Variable.
103
104 If the Statement is NULL, the ASSERT.
105 If the opcode is not Numeric, then ASSERT.
106
107 @retval EFI_SUCCESS The funtion always succeeds.
108 **/
109 EFI_STATUS
110 UpdateCheckBoxStringToken (
111 IN CONST FORM_BROWSER_FORMSET *FormSet,
112 IN FORM_BROWSER_STATEMENT *Statement
113 )
114 {
115 CHAR16 Str[MAXIMUM_VALUE_CHARACTERS];
116 EFI_STRING_ID Id;
117
118 ASSERT (Statement != NULL);
119 ASSERT (Statement->Operand == EFI_IFR_NUMERIC_OP);
120
121 UnicodeValueToString (Str, 0, Statement->VarStoreInfo.VarName, MAXIMUM_VALUE_CHARACTERS - 1);
122
123 Id = HiiSetString (FormSet->HiiHandle, 0, Str, NULL);
124 if (Id == 0) {
125 return EFI_OUT_OF_RESOURCES;
126 }
127
128 Statement->VarStoreInfo.VarName = Id;
129
130 return EFI_SUCCESS;
131 }
132
133 /**
134 Check if the next opcode is the EFI_IFR_EXTEND_OP_VAREQNAME.
135
136 @param OpCodeData The current opcode.
137
138 @retval TRUE Yes.
139 @retval FALSE No.
140 **/
141 BOOLEAN
142 IsNextOpCodeGuidedVarEqName (
143 IN UINT8 *OpCodeData
144 )
145 {
146 //
147 // Get next opcode
148 //
149 OpCodeData += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
150 if (*OpCodeData == EFI_IFR_GUID_OP) {
151 if (CompareGuid (&gEfiIfrFrameworkGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
152 //
153 // Specific GUIDed opcodes to support IFR generated from Framework HII VFR
154 //
155 if ((((EFI_IFR_GUID_VAREQNAME *) OpCodeData)->ExtendOpCode) == EFI_IFR_EXTEND_OP_VAREQNAME) {
156 return TRUE;
157 }
158 }
159 }
160
161 return FALSE;
162 }
163
164 /**
165 Initialize Question's members.
166
167 @param OpCodeData Pointer of the raw OpCode data.
168 @param FormSet Pointer of the current FormSet.
169 @param Form Pointer of the current Form.
170
171 @return The Question.
172
173 **/
174 FORM_BROWSER_STATEMENT *
175 CreateQuestion (
176 IN UINT8 *OpCodeData,
177 IN OUT FORM_BROWSER_FORMSET *FormSet,
178 IN OUT FORM_BROWSER_FORM *Form
179 )
180 {
181 FORM_BROWSER_STATEMENT *Statement;
182 EFI_IFR_QUESTION_HEADER *QuestionHdr;
183 LIST_ENTRY *Link;
184 FORMSET_STORAGE *Storage;
185 NAME_VALUE_NODE *NameValueNode;
186 EFI_STATUS Status;
187
188 Statement = CreateStatement (OpCodeData, FormSet, Form);
189 if (Statement == NULL) {
190 return NULL;
191 }
192
193 QuestionHdr = (EFI_IFR_QUESTION_HEADER *) (OpCodeData + sizeof (EFI_IFR_OP_HEADER));
194 CopyMem (&Statement->QuestionId, &QuestionHdr->QuestionId, sizeof (EFI_QUESTION_ID));
195 CopyMem (&Statement->VarStoreId, &QuestionHdr->VarStoreId, sizeof (EFI_VARSTORE_ID));
196 CopyMem (&Statement->VarStoreInfo.VarOffset, &QuestionHdr->VarStoreInfo.VarOffset, sizeof (UINT16));
197
198 Statement->QuestionFlags = QuestionHdr->Flags;
199
200 if (Statement->VarStoreId == 0) {
201 //
202 // VarStoreId of zero indicates no variable storage
203 //
204 return Statement;
205 }
206
207 //
208 // Take a look at next OpCode to see whether it is a GUIDed opcode to support
209 // Framework Compatibility
210 //
211 if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {
212 if ((*OpCodeData == EFI_IFR_NUMERIC_OP) && IsNextOpCodeGuidedVarEqName (OpCodeData)) {
213 Status = UpdateCheckBoxStringToken (FormSet, Statement);
214 if (EFI_ERROR (Status)) {
215 return NULL;
216 }
217 }
218 }
219
220 //
221 // Find Storage for this Question
222 //
223 Link = GetFirstNode (&FormSet->StorageListHead);
224 while (!IsNull (&FormSet->StorageListHead, Link)) {
225 Storage = FORMSET_STORAGE_FROM_LINK (Link);
226
227 if (Storage->VarStoreId == Statement->VarStoreId) {
228 Statement->Storage = Storage;
229 break;
230 }
231
232 Link = GetNextNode (&FormSet->StorageListHead, Link);
233 }
234 ASSERT (Statement->Storage != NULL);
235
236 //
237 // Initialilze varname for Name/Value or EFI Variable
238 //
239 if ((Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) ||
240 (Statement->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) {
241 Statement->VariableName = GetToken (Statement->VarStoreInfo.VarName, FormSet->HiiHandle);
242 ASSERT (Statement->VariableName != NULL);
243
244 if (Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
245 //
246 // Insert to Name/Value varstore list
247 //
248 NameValueNode = AllocateZeroPool (sizeof (NAME_VALUE_NODE));
249 ASSERT (NameValueNode != NULL);
250 NameValueNode->Signature = NAME_VALUE_NODE_SIGNATURE;
251 NameValueNode->Name = AllocateCopyPool (StrSize (Statement->VariableName), Statement->VariableName);
252 ASSERT (NameValueNode->Name != NULL);
253 NameValueNode->Value = AllocateZeroPool (0x10);
254 ASSERT (NameValueNode->Value != NULL);
255 NameValueNode->EditValue = AllocateZeroPool (0x10);
256 ASSERT (NameValueNode->EditValue != NULL);
257
258 InsertTailList (&Statement->Storage->NameValueListHead, &NameValueNode->Link);
259 }
260 }
261
262 return Statement;
263 }
264
265
266 /**
267 Allocate a FORM_EXPRESSION node.
268
269 @param Form The Form associated with this Expression
270
271 @return Pointer to a FORM_EXPRESSION data structure.
272
273 **/
274 FORM_EXPRESSION *
275 CreateExpression (
276 IN OUT FORM_BROWSER_FORM *Form
277 )
278 {
279 FORM_EXPRESSION *Expression;
280
281 Expression = AllocateZeroPool (sizeof (FORM_EXPRESSION));
282 ASSERT (Expression != NULL);
283 Expression->Signature = FORM_EXPRESSION_SIGNATURE;
284 InitializeListHead (&Expression->OpCodeListHead);
285
286 return Expression;
287 }
288
289
290 /**
291 Allocate a FORMSET_STORAGE data structure and insert to FormSet Storage List.
292
293 @param FormSet Pointer of the current FormSet
294
295 @return Pointer to a FORMSET_STORAGE data structure.
296
297 **/
298 FORMSET_STORAGE *
299 CreateStorage (
300 IN FORM_BROWSER_FORMSET *FormSet
301 )
302 {
303 FORMSET_STORAGE *Storage;
304
305 Storage = AllocateZeroPool (sizeof (FORMSET_STORAGE));
306 ASSERT (Storage != NULL);
307 Storage->Signature = FORMSET_STORAGE_SIGNATURE;
308 InitializeListHead (&Storage->NameValueListHead);
309 InsertTailList (&FormSet->StorageListHead, &Storage->Link);
310
311 return Storage;
312 }
313
314
315 /**
316 Create ConfigHdr string for a storage.
317
318 @param FormSet Pointer of the current FormSet
319 @param Storage Pointer of the storage
320
321 @retval EFI_SUCCESS Initialize ConfigHdr success
322
323 **/
324 EFI_STATUS
325 InitializeConfigHdr (
326 IN FORM_BROWSER_FORMSET *FormSet,
327 IN OUT FORMSET_STORAGE *Storage
328 )
329 {
330 CHAR16 *Name;
331
332 if (Storage->Type == EFI_HII_VARSTORE_BUFFER) {
333 Name = Storage->Name;
334 } else {
335 Name = NULL;
336 }
337
338 Storage->ConfigHdr = HiiConstructConfigHdr (
339 &Storage->Guid,
340 Name,
341 FormSet->DriverHandle
342 );
343
344 if (Storage->ConfigHdr == NULL) {
345 return EFI_NOT_FOUND;
346 }
347
348 Storage->ConfigRequest = AllocateCopyPool (StrSize (Storage->ConfigHdr), Storage->ConfigHdr);
349 Storage->SpareStrLen = 0;
350
351 return EFI_SUCCESS;
352 }
353
354
355 /**
356 Initialize Request Element of a Question. <RequestElement> ::= '&'<BlockName> | '&'<Label>
357
358 @param FormSet Pointer of the current FormSet.
359 @param Question The Question to be initialized.
360
361 @retval EFI_SUCCESS Function success.
362 @retval EFI_INVALID_PARAMETER No storage associated with the Question.
363
364 **/
365 EFI_STATUS
366 InitializeRequestElement (
367 IN OUT FORM_BROWSER_FORMSET *FormSet,
368 IN OUT FORM_BROWSER_STATEMENT *Question
369 )
370 {
371 FORMSET_STORAGE *Storage;
372 UINTN StrLen;
373 UINTN StringSize;
374 CHAR16 *NewStr;
375 CHAR16 RequestElement[30];
376
377 Storage = Question->Storage;
378 if (Storage == NULL) {
379 return EFI_INVALID_PARAMETER;
380 }
381
382 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
383 //
384 // <ConfigRequest> is unnecessary for EFI variable storage,
385 // GetVariable()/SetVariable() will be used to retrieve/save values
386 //
387 return EFI_SUCCESS;
388 }
389
390 //
391 // Prepare <RequestElement>
392 //
393 if (Storage->Type == EFI_HII_VARSTORE_BUFFER) {
394 StrLen = UnicodeSPrint (
395 RequestElement,
396 30 * sizeof (CHAR16),
397 L"&OFFSET=%x&WIDTH=%x",
398 Question->VarStoreInfo.VarOffset,
399 Question->StorageWidth
400 );
401 Question->BlockName = AllocateCopyPool ((StrLen + 1) * sizeof (CHAR16), RequestElement);
402 } else {
403 StrLen = UnicodeSPrint (RequestElement, 30 * sizeof (CHAR16), L"&%s", Question->VariableName);
404 }
405
406 if ((Question->Operand == EFI_IFR_PASSWORD_OP) && ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) == EFI_IFR_FLAG_CALLBACK)) {
407 //
408 // Password with CALLBACK flag is stored in encoded format,
409 // so don't need to append it to <ConfigRequest>
410 //
411 return EFI_SUCCESS;
412 }
413
414 //
415 // Append <RequestElement> to <ConfigRequest>
416 //
417 if (StrLen > Storage->SpareStrLen) {
418 //
419 // Old String buffer is not sufficient for RequestElement, allocate a new one
420 //
421 StringSize = (Storage->ConfigRequest != NULL) ? StrSize (Storage->ConfigRequest) : sizeof (CHAR16);
422 NewStr = AllocateZeroPool (StringSize + CONFIG_REQUEST_STRING_INCREMENTAL * sizeof (CHAR16));
423 ASSERT (NewStr != NULL);
424 if (Storage->ConfigRequest != NULL) {
425 CopyMem (NewStr, Storage->ConfigRequest, StringSize);
426 FreePool (Storage->ConfigRequest);
427 }
428 Storage->ConfigRequest = NewStr;
429 Storage->SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
430 }
431
432 StrCat (Storage->ConfigRequest, RequestElement);
433 Storage->ElementCount++;
434 Storage->SpareStrLen -= StrLen;
435
436 return EFI_SUCCESS;
437 }
438
439
440 /**
441 Free resources of a Expression.
442
443 @param FormSet Pointer of the Expression
444
445 **/
446 VOID
447 DestroyExpression (
448 IN FORM_EXPRESSION *Expression
449 )
450 {
451 LIST_ENTRY *Link;
452 EXPRESSION_OPCODE *OpCode;
453
454 while (!IsListEmpty (&Expression->OpCodeListHead)) {
455 Link = GetFirstNode (&Expression->OpCodeListHead);
456 OpCode = EXPRESSION_OPCODE_FROM_LINK (Link);
457 RemoveEntryList (&OpCode->Link);
458
459 if (OpCode->ValueList != NULL) {
460 FreePool (OpCode->ValueList);
461 }
462 }
463
464 //
465 // Free this Expression
466 //
467 FreePool (Expression);
468 }
469
470
471 /**
472 Free resources of a storage.
473
474 @param Storage Pointer of the storage
475
476 **/
477 VOID
478 DestroyStorage (
479 IN FORMSET_STORAGE *Storage
480 )
481 {
482 LIST_ENTRY *Link;
483 NAME_VALUE_NODE *NameValueNode;
484
485 if (Storage == NULL) {
486 return;
487 }
488
489 if (Storage->Name != NULL) {
490 FreePool (Storage->Name);
491 }
492 if (Storage->Buffer != NULL) {
493 FreePool (Storage->Buffer);
494 }
495 if (Storage->EditBuffer != NULL) {
496 FreePool (Storage->EditBuffer);
497 }
498
499 while (!IsListEmpty (&Storage->NameValueListHead)) {
500 Link = GetFirstNode (&Storage->NameValueListHead);
501 NameValueNode = NAME_VALUE_NODE_FROM_LINK (Link);
502 RemoveEntryList (&NameValueNode->Link);
503
504 if (NameValueNode->Name != NULL) {
505 FreePool (NameValueNode->Name);
506 }
507 if (NameValueNode->Value != NULL) {
508 FreePool (NameValueNode->Value);
509 }
510 if (NameValueNode->EditValue != NULL) {
511 FreePool (NameValueNode->EditValue);
512 }
513 FreePool (NameValueNode);
514 }
515
516 if (Storage->ConfigHdr != NULL) {
517 FreePool (Storage->ConfigHdr);
518 }
519 if (Storage->ConfigRequest != NULL) {
520 FreePool (Storage->ConfigRequest);
521 }
522
523 FreePool (Storage);
524 }
525
526
527 /**
528 Free resources of a Statement.
529
530 @param Statement Pointer of the Statement
531
532 **/
533 VOID
534 DestroyStatement (
535 IN OUT FORM_BROWSER_STATEMENT *Statement
536 )
537 {
538 LIST_ENTRY *Link;
539 QUESTION_DEFAULT *Default;
540 QUESTION_OPTION *Option;
541 FORM_EXPRESSION *Expression;
542
543 //
544 // Free Default value List
545 //
546 while (!IsListEmpty (&Statement->DefaultListHead)) {
547 Link = GetFirstNode (&Statement->DefaultListHead);
548 Default = QUESTION_DEFAULT_FROM_LINK (Link);
549 RemoveEntryList (&Default->Link);
550
551 FreePool (Default);
552 }
553
554 //
555 // Free Options List
556 //
557 while (!IsListEmpty (&Statement->OptionListHead)) {
558 Link = GetFirstNode (&Statement->OptionListHead);
559 Option = QUESTION_OPTION_FROM_LINK (Link);
560 RemoveEntryList (&Option->Link);
561
562 FreePool (Option);
563 }
564
565 //
566 // Free Inconsistent List
567 //
568 while (!IsListEmpty (&Statement->InconsistentListHead)) {
569 Link = GetFirstNode (&Statement->InconsistentListHead);
570 Expression = FORM_EXPRESSION_FROM_LINK (Link);
571 RemoveEntryList (&Expression->Link);
572
573 DestroyExpression (Expression);
574 }
575
576 //
577 // Free NoSubmit List
578 //
579 while (!IsListEmpty (&Statement->NoSubmitListHead)) {
580 Link = GetFirstNode (&Statement->NoSubmitListHead);
581 Expression = FORM_EXPRESSION_FROM_LINK (Link);
582 RemoveEntryList (&Expression->Link);
583
584 DestroyExpression (Expression);
585 }
586
587 if (Statement->VariableName != NULL) {
588 FreePool (Statement->VariableName);
589 }
590 if (Statement->BlockName != NULL) {
591 FreePool (Statement->BlockName);
592 }
593 }
594
595
596 /**
597 Free resources of a Form.
598
599 @param Form Pointer of the Form.
600
601 **/
602 VOID
603 DestroyForm (
604 IN OUT FORM_BROWSER_FORM *Form
605 )
606 {
607 LIST_ENTRY *Link;
608 FORM_EXPRESSION *Expression;
609 FORM_BROWSER_STATEMENT *Statement;
610
611 //
612 // Free Form Expressions
613 //
614 while (!IsListEmpty (&Form->ExpressionListHead)) {
615 Link = GetFirstNode (&Form->ExpressionListHead);
616 Expression = FORM_EXPRESSION_FROM_LINK (Link);
617 RemoveEntryList (&Expression->Link);
618
619 DestroyExpression (Expression);
620 }
621
622 //
623 // Free Statements/Questions
624 //
625 while (!IsListEmpty (&Form->StatementListHead)) {
626 Link = GetFirstNode (&Form->StatementListHead);
627 Statement = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
628 RemoveEntryList (&Statement->Link);
629
630 DestroyStatement (Statement);
631 }
632
633 //
634 // Free this Form
635 //
636 FreePool (Form);
637 }
638
639
640 /**
641 Free resources allocated for a FormSet.
642
643 @param FormSet Pointer of the FormSet
644
645 **/
646 VOID
647 DestroyFormSet (
648 IN OUT FORM_BROWSER_FORMSET *FormSet
649 )
650 {
651 LIST_ENTRY *Link;
652 FORMSET_STORAGE *Storage;
653 FORMSET_DEFAULTSTORE *DefaultStore;
654 FORM_EXPRESSION *Expression;
655 FORM_BROWSER_FORM *Form;
656
657 if (FormSet->IfrBinaryData == NULL) {
658 //
659 // Uninitialized FormSet
660 //
661 FreePool (FormSet);
662 return;
663 }
664
665 //
666 // Free IFR binary buffer
667 //
668 FreePool (FormSet->IfrBinaryData);
669
670 //
671 // Free FormSet Storage
672 //
673 if (FormSet->StorageListHead.ForwardLink != NULL) {
674 while (!IsListEmpty (&FormSet->StorageListHead)) {
675 Link = GetFirstNode (&FormSet->StorageListHead);
676 Storage = FORMSET_STORAGE_FROM_LINK (Link);
677 RemoveEntryList (&Storage->Link);
678
679 DestroyStorage (Storage);
680 }
681 }
682
683 //
684 // Free FormSet Default Store
685 //
686 if (FormSet->DefaultStoreListHead.ForwardLink != NULL) {
687 while (!IsListEmpty (&FormSet->DefaultStoreListHead)) {
688 Link = GetFirstNode (&FormSet->DefaultStoreListHead);
689 DefaultStore = FORMSET_DEFAULTSTORE_FROM_LINK (Link);
690 RemoveEntryList (&DefaultStore->Link);
691
692 FreePool (DefaultStore);
693 }
694 }
695
696 //
697 // Free Formset Expressions
698 //
699 while (!IsListEmpty (&FormSet->ExpressionListHead)) {
700 Link = GetFirstNode (&FormSet->ExpressionListHead);
701 Expression = FORM_EXPRESSION_FROM_LINK (Link);
702 RemoveEntryList (&Expression->Link);
703
704 DestroyExpression (Expression);
705 }
706
707 //
708 // Free Forms
709 //
710 if (FormSet->FormListHead.ForwardLink != NULL) {
711 while (!IsListEmpty (&FormSet->FormListHead)) {
712 Link = GetFirstNode (&FormSet->FormListHead);
713 Form = FORM_BROWSER_FORM_FROM_LINK (Link);
714 RemoveEntryList (&Form->Link);
715
716 DestroyForm (Form);
717 }
718 }
719
720 if (FormSet->StatementBuffer != NULL) {
721 FreePool (FormSet->StatementBuffer);
722 }
723 if (FormSet->ExpressionBuffer != NULL) {
724 FreePool (FormSet->ExpressionBuffer);
725 }
726
727 FreePool (FormSet);
728 }
729
730
731 /**
732 Tell whether this Operand is an Expression OpCode or not
733
734 @param Operand Operand of an IFR OpCode.
735
736 @retval TRUE This is an Expression OpCode.
737 @retval FALSE Not an Expression OpCode.
738
739 **/
740 BOOLEAN
741 IsExpressionOpCode (
742 IN UINT8 Operand
743 )
744 {
745 if (((Operand >= EFI_IFR_EQ_ID_VAL_OP) && (Operand <= EFI_IFR_NOT_OP)) ||
746 ((Operand >= EFI_IFR_MATCH_OP) && (Operand <= EFI_IFR_SPAN_OP)) ||
747 (Operand == EFI_IFR_CATENATE_OP) ||
748 (Operand == EFI_IFR_TO_LOWER_OP) ||
749 (Operand == EFI_IFR_TO_UPPER_OP) ||
750 (Operand == EFI_IFR_VERSION_OP)
751 ) {
752 return TRUE;
753 } else {
754 return FALSE;
755 }
756 }
757
758
759 /**
760 Calculate number of Statemens(Questions) and Expression OpCodes.
761
762 @param FormSet The FormSet to be counted.
763 @param NumberOfStatement Number of Statemens(Questions)
764 @param NumberOfExpression Number of Expression OpCodes
765
766 **/
767 VOID
768 CountOpCodes (
769 IN FORM_BROWSER_FORMSET *FormSet,
770 IN OUT UINT16 *NumberOfStatement,
771 IN OUT UINT16 *NumberOfExpression
772 )
773 {
774 UINT16 StatementCount;
775 UINT16 ExpressionCount;
776 UINT8 *OpCodeData;
777 UINTN Offset;
778 UINTN OpCodeLen;
779
780 Offset = 0;
781 StatementCount = 0;
782 ExpressionCount = 0;
783
784 while (Offset < FormSet->IfrBinaryLength) {
785 OpCodeData = FormSet->IfrBinaryData + Offset;
786 OpCodeLen = ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
787 Offset += OpCodeLen;
788
789 if (IsExpressionOpCode (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode)) {
790 ExpressionCount++;
791 } else {
792 StatementCount++;
793 }
794 }
795
796 *NumberOfStatement = StatementCount;
797 *NumberOfExpression = ExpressionCount;
798 }
799
800
801
802 /**
803 Parse opcodes in the formset IFR binary.
804
805 @param FormSet Pointer of the FormSet data structure.
806
807 @retval EFI_SUCCESS Opcode parse success.
808 @retval Other Opcode parse fail.
809
810 **/
811 EFI_STATUS
812 ParseOpCodes (
813 IN FORM_BROWSER_FORMSET *FormSet
814 )
815 {
816 EFI_STATUS Status;
817 UINT16 Index;
818 FORM_BROWSER_FORM *CurrentForm;
819 FORM_BROWSER_STATEMENT *CurrentStatement;
820 EXPRESSION_OPCODE *ExpressionOpCode;
821 FORM_EXPRESSION *CurrentExpression;
822 UINT8 Operand;
823 UINT8 Scope;
824 UINTN OpCodeOffset;
825 UINTN OpCodeLength;
826 UINT8 *OpCodeData;
827 UINT8 ScopeOpCode;
828 FORMSET_STORAGE *Storage;
829 FORMSET_DEFAULTSTORE *DefaultStore;
830 QUESTION_DEFAULT *CurrentDefault;
831 QUESTION_OPTION *CurrentOption;
832 UINT8 Width;
833 CHAR8 *AsciiString;
834 UINT16 NumberOfStatement;
835 UINT16 NumberOfExpression;
836 EFI_IMAGE_ID *ImageId;
837 BOOLEAN SuppressForQuestion;
838 BOOLEAN SuppressForOption;
839 BOOLEAN InScopeOptionSuppress;
840 FORM_EXPRESSION *OptionSuppressExpression;
841 BOOLEAN InScopeFormSuppress;
842 FORM_EXPRESSION *FormSuppressExpression;
843 UINT16 DepthOfDisable;
844 BOOLEAN OpCodeDisabled;
845 BOOLEAN SingleOpCodeExpression;
846 BOOLEAN InScopeDefault;
847 EFI_HII_VALUE *Value;
848
849 mInScopeSubtitle = FALSE;
850 SuppressForQuestion = FALSE;
851 SuppressForOption = FALSE;
852 InScopeFormSuppress = FALSE;
853 mInScopeSuppress = FALSE;
854 InScopeOptionSuppress = FALSE;
855 mInScopeGrayOut = FALSE;
856 mInScopeDisable = FALSE;
857 DepthOfDisable = 0;
858 OpCodeDisabled = FALSE;
859 SingleOpCodeExpression = FALSE;
860 InScopeDefault = FALSE;
861 CurrentExpression = NULL;
862 CurrentDefault = NULL;
863 CurrentOption = NULL;
864 OptionSuppressExpression = NULL;
865 FormSuppressExpression = NULL;
866 ImageId = NULL;
867
868 //
869 // Get the number of Statements and Expressions
870 //
871 CountOpCodes (FormSet, &NumberOfStatement, &NumberOfExpression);
872
873 mStatementIndex = 0;
874 FormSet->StatementBuffer = AllocateZeroPool (NumberOfStatement * sizeof (FORM_BROWSER_STATEMENT));
875 if (FormSet->StatementBuffer == NULL) {
876 return EFI_OUT_OF_RESOURCES;
877 }
878
879 mExpressionOpCodeIndex = 0;
880 FormSet->ExpressionBuffer = AllocateZeroPool (NumberOfExpression * sizeof (EXPRESSION_OPCODE));
881 if (FormSet->ExpressionBuffer == NULL) {
882 return EFI_OUT_OF_RESOURCES;
883 }
884
885 InitializeListHead (&FormSet->StorageListHead);
886 InitializeListHead (&FormSet->DefaultStoreListHead);
887 InitializeListHead (&FormSet->FormListHead);
888
889 CurrentForm = NULL;
890 CurrentStatement = NULL;
891
892 ResetScopeStack ();
893
894 OpCodeOffset = 0;
895 while (OpCodeOffset < FormSet->IfrBinaryLength) {
896 OpCodeData = FormSet->IfrBinaryData + OpCodeOffset;
897
898 OpCodeLength = ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
899 OpCodeOffset += OpCodeLength;
900 Operand = ((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode;
901 Scope = ((EFI_IFR_OP_HEADER *) OpCodeData)->Scope;
902
903 //
904 // If scope bit set, push onto scope stack
905 //
906 if (Scope != 0) {
907 PushScope (Operand);
908 }
909
910 if (OpCodeDisabled) {
911 //
912 // DisableIf Expression is evaluated to be TRUE, try to find its end.
913 // Here only cares the EFI_IFR_DISABLE_IF and EFI_IFR_END
914 //
915 if (Operand == EFI_IFR_DISABLE_IF_OP) {
916 DepthOfDisable++;
917 } else if (Operand == EFI_IFR_END_OP) {
918 Status = PopScope (&ScopeOpCode);
919 if (EFI_ERROR (Status)) {
920 return Status;
921 }
922
923 if (ScopeOpCode == EFI_IFR_DISABLE_IF_OP) {
924 if (DepthOfDisable == 0) {
925 mInScopeDisable = FALSE;
926 OpCodeDisabled = FALSE;
927 } else {
928 DepthOfDisable--;
929 }
930 }
931 }
932 continue;
933 }
934
935 if (IsExpressionOpCode (Operand)) {
936 ExpressionOpCode = &FormSet->ExpressionBuffer[mExpressionOpCodeIndex];
937 mExpressionOpCodeIndex++;
938
939 ExpressionOpCode->Signature = EXPRESSION_OPCODE_SIGNATURE;
940 ExpressionOpCode->Operand = Operand;
941 Value = &ExpressionOpCode->Value;
942
943 switch (Operand) {
944 case EFI_IFR_EQ_ID_VAL_OP:
945 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
946
947 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
948 CopyMem (&Value->Value.u16, &((EFI_IFR_EQ_ID_VAL *) OpCodeData)->Value, sizeof (UINT16));
949 break;
950
951 case EFI_IFR_EQ_ID_ID_OP:
952 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_ID *) OpCodeData)->QuestionId1, sizeof (EFI_QUESTION_ID));
953 CopyMem (&ExpressionOpCode->QuestionId2, &((EFI_IFR_EQ_ID_ID *) OpCodeData)->QuestionId2, sizeof (EFI_QUESTION_ID));
954 break;
955
956 case EFI_IFR_EQ_ID_LIST_OP:
957 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
958 CopyMem (&ExpressionOpCode->ListLength, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->ListLength, sizeof (UINT16));
959 ExpressionOpCode->ValueList = AllocateCopyPool (ExpressionOpCode->ListLength * sizeof (UINT16), &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->ValueList);
960 break;
961
962 case EFI_IFR_TO_STRING_OP:
963 case EFI_IFR_FIND_OP:
964 ExpressionOpCode->Format = (( EFI_IFR_TO_STRING *) OpCodeData)->Format;
965 break;
966
967 case EFI_IFR_STRING_REF1_OP:
968 Value->Type = EFI_IFR_TYPE_STRING;
969 CopyMem (&Value->Value.string, &(( EFI_IFR_STRING_REF1 *) OpCodeData)->StringId, sizeof (EFI_STRING_ID));
970 break;
971
972 case EFI_IFR_RULE_REF_OP:
973 ExpressionOpCode->RuleId = (( EFI_IFR_RULE_REF *) OpCodeData)->RuleId;
974 break;
975
976 case EFI_IFR_SPAN_OP:
977 ExpressionOpCode->Flags = (( EFI_IFR_SPAN *) OpCodeData)->Flags;
978 break;
979
980 case EFI_IFR_THIS_OP:
981 ASSERT (CurrentStatement != NULL);
982 ExpressionOpCode->QuestionId = CurrentStatement->QuestionId;
983 break;
984
985 case EFI_IFR_QUESTION_REF1_OP:
986 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
987 break;
988
989 case EFI_IFR_QUESTION_REF3_OP:
990 if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_2)) {
991 CopyMem (&ExpressionOpCode->DevicePath, &(( EFI_IFR_QUESTION_REF3_2 *) OpCodeData)->DevicePath, sizeof (EFI_STRING_ID));
992
993 if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_3)) {
994 CopyMem (&ExpressionOpCode->Guid, &(( EFI_IFR_QUESTION_REF3_3 *) OpCodeData)->Guid, sizeof (EFI_GUID));
995 }
996 }
997 break;
998
999 //
1000 // constant
1001 //
1002 case EFI_IFR_TRUE_OP:
1003 Value->Type = EFI_IFR_TYPE_BOOLEAN;
1004 Value->Value.b = TRUE;
1005 break;
1006
1007 case EFI_IFR_FALSE_OP:
1008 Value->Type = EFI_IFR_TYPE_BOOLEAN;
1009 Value->Value.b = FALSE;
1010 break;
1011
1012 case EFI_IFR_ONE_OP:
1013 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
1014 Value->Value.u8 = 1;
1015 break;
1016
1017 case EFI_IFR_ZERO_OP:
1018 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
1019 Value->Value.u8 = 0;
1020 break;
1021
1022 case EFI_IFR_ONES_OP:
1023 Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
1024 Value->Value.u64 = 0xffffffffffffffffULL;
1025 break;
1026
1027 case EFI_IFR_UINT8_OP:
1028 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
1029 Value->Value.u8 = (( EFI_IFR_UINT8 *) OpCodeData)->Value;
1030 break;
1031
1032 case EFI_IFR_UINT16_OP:
1033 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
1034 CopyMem (&Value->Value.u16, &(( EFI_IFR_UINT16 *) OpCodeData)->Value, sizeof (UINT16));
1035 break;
1036
1037 case EFI_IFR_UINT32_OP:
1038 Value->Type = EFI_IFR_TYPE_NUM_SIZE_32;
1039 CopyMem (&Value->Value.u32, &(( EFI_IFR_UINT32 *) OpCodeData)->Value, sizeof (UINT32));
1040 break;
1041
1042 case EFI_IFR_UINT64_OP:
1043 Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
1044 CopyMem (&Value->Value.u64, &(( EFI_IFR_UINT64 *) OpCodeData)->Value, sizeof (UINT64));
1045 break;
1046
1047 case EFI_IFR_UNDEFINED_OP:
1048 Value->Type = EFI_IFR_TYPE_UNDEFINED;
1049 break;
1050
1051 case EFI_IFR_VERSION_OP:
1052 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
1053 Value->Value.u16 = EFI_IFR_SPECIFICATION_VERSION;
1054 break;
1055
1056 default:
1057 break;
1058 }
1059
1060 ASSERT (CurrentExpression != NULL);
1061 InsertTailList (&CurrentExpression->OpCodeListHead, &ExpressionOpCode->Link);
1062
1063 if (SingleOpCodeExpression) {
1064 //
1065 // There are two cases to indicate the end of an Expression:
1066 // for single OpCode expression: one Expression OpCode
1067 // for expression consists of more than one OpCode: EFI_IFR_END
1068 //
1069 SingleOpCodeExpression = FALSE;
1070
1071 if (mInScopeDisable && CurrentForm == NULL) {
1072 //
1073 // This is DisableIf expression for Form, it should be a constant expression
1074 //
1075 Status = EvaluateExpression (FormSet, CurrentForm, CurrentExpression);
1076 if (EFI_ERROR (Status)) {
1077 return Status;
1078 }
1079
1080 if (CurrentExpression->Result.Type != EFI_IFR_TYPE_BOOLEAN) {
1081 return EFI_INVALID_PARAMETER;
1082 }
1083
1084 OpCodeDisabled = CurrentExpression->Result.Value.b;
1085 }
1086
1087 CurrentExpression = NULL;
1088 }
1089
1090 continue;
1091 }
1092
1093 //
1094 // Parse the Opcode
1095 //
1096 switch (Operand) {
1097
1098 case EFI_IFR_FORM_SET_OP:
1099 //
1100 // Check the formset GUID
1101 //
1102 if (CompareMem (&FormSet->Guid, &((EFI_IFR_FORM_SET *) OpCodeData)->Guid, sizeof (EFI_GUID)) != 0) {
1103 return EFI_INVALID_PARAMETER;
1104 }
1105
1106 CopyMem (&FormSet->FormSetTitle, &((EFI_IFR_FORM_SET *) OpCodeData)->FormSetTitle, sizeof (EFI_STRING_ID));
1107 CopyMem (&FormSet->Help, &((EFI_IFR_FORM_SET *) OpCodeData)->Help, sizeof (EFI_STRING_ID));
1108
1109 //
1110 // The formset OpCode contains ClassGuid
1111 //
1112 FormSet->NumberOfClassGuid = (UINT8) (((EFI_IFR_FORM_SET *) OpCodeData)->Flags & 0x3);
1113 CopyMem (FormSet->ClassGuid, OpCodeData + sizeof (EFI_IFR_FORM_SET), FormSet->NumberOfClassGuid * sizeof (EFI_GUID));
1114
1115 InitializeListHead (&FormSet->ExpressionListHead);
1116 break;
1117
1118 case EFI_IFR_FORM_OP:
1119 //
1120 // Create a new Form for this FormSet
1121 //
1122 CurrentForm = AllocateZeroPool (sizeof (FORM_BROWSER_FORM));
1123 ASSERT (CurrentForm != NULL);
1124 CurrentForm->Signature = FORM_BROWSER_FORM_SIGNATURE;
1125 InitializeListHead (&CurrentForm->ExpressionListHead);
1126 InitializeListHead (&CurrentForm->StatementListHead);
1127
1128 CopyMem (&CurrentForm->FormId, &((EFI_IFR_FORM *) OpCodeData)->FormId, sizeof (UINT16));
1129 CopyMem (&CurrentForm->FormTitle, &((EFI_IFR_FORM *) OpCodeData)->FormTitle, sizeof (EFI_STRING_ID));
1130
1131 if (InScopeFormSuppress) {
1132 //
1133 // Form is inside of suppressif
1134 //
1135 CurrentForm->SuppressExpression = FormSuppressExpression;
1136 }
1137
1138 if (Scope != 0) {
1139 //
1140 // Enter scope of a Form, suppressif will be used for Question or Option
1141 //
1142 SuppressForQuestion = TRUE;
1143 }
1144
1145 //
1146 // Insert into Form list of this FormSet
1147 //
1148 InsertTailList (&FormSet->FormListHead, &CurrentForm->Link);
1149 break;
1150
1151 //
1152 // Storage
1153 //
1154 case EFI_IFR_VARSTORE_OP:
1155 //
1156 // Create a buffer Storage for this FormSet
1157 //
1158 Storage = CreateStorage (FormSet);
1159 Storage->Type = EFI_HII_VARSTORE_BUFFER;
1160
1161 CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
1162 CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE *) OpCodeData)->Guid, sizeof (EFI_GUID));
1163 CopyMem (&Storage->Size, &((EFI_IFR_VARSTORE *) OpCodeData)->Size, sizeof (UINT16));
1164
1165 Storage->Buffer = AllocateZeroPool (Storage->Size);
1166 Storage->EditBuffer = AllocateZeroPool (Storage->Size);
1167
1168 AsciiString = (CHAR8 *) ((EFI_IFR_VARSTORE *) OpCodeData)->Name;
1169 Storage->Name = AllocateZeroPool (AsciiStrSize (AsciiString) * 2);
1170 ASSERT (Storage->Name != NULL);
1171 for (Index = 0; AsciiString[Index] != 0; Index++) {
1172 Storage->Name[Index] = (CHAR16) AsciiString[Index];
1173 }
1174
1175 //
1176 // Initialize <ConfigHdr>
1177 //
1178 InitializeConfigHdr (FormSet, Storage);
1179 break;
1180
1181 case EFI_IFR_VARSTORE_NAME_VALUE_OP:
1182 //
1183 // Create a name/value Storage for this FormSet
1184 //
1185 Storage = CreateStorage (FormSet);
1186 Storage->Type = EFI_HII_VARSTORE_NAME_VALUE;
1187
1188 CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
1189 CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->Guid, sizeof (EFI_GUID));
1190
1191 //
1192 // Initialize <ConfigHdr>
1193 //
1194 InitializeConfigHdr (FormSet, Storage);
1195 break;
1196
1197 case EFI_IFR_VARSTORE_EFI_OP:
1198 //
1199 // Create a EFI variable Storage for this FormSet
1200 //
1201 Storage = CreateStorage (FormSet);
1202 Storage->Type = EFI_HII_VARSTORE_EFI_VARIABLE;
1203
1204 CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
1205 CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Guid, sizeof (EFI_GUID));
1206 CopyMem (&Storage->Attributes, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Attributes, sizeof (UINT32));
1207 break;
1208
1209 //
1210 // DefaultStore
1211 //
1212 case EFI_IFR_DEFAULTSTORE_OP:
1213 DefaultStore = AllocateZeroPool (sizeof (FORMSET_DEFAULTSTORE));
1214 ASSERT (DefaultStore != NULL);
1215 DefaultStore->Signature = FORMSET_DEFAULTSTORE_SIGNATURE;
1216
1217 CopyMem (&DefaultStore->DefaultId, &((EFI_IFR_DEFAULTSTORE *) OpCodeData)->DefaultId, sizeof (UINT16));
1218 CopyMem (&DefaultStore->DefaultName, &((EFI_IFR_DEFAULTSTORE *) OpCodeData)->DefaultName, sizeof (EFI_STRING_ID));
1219
1220 //
1221 // Insert to DefaultStore list of this Formset
1222 //
1223 InsertTailList (&FormSet->DefaultStoreListHead, &DefaultStore->Link);
1224 break;
1225
1226 //
1227 // Statements
1228 //
1229 case EFI_IFR_SUBTITLE_OP:
1230 CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
1231 ASSERT (CurrentStatement != NULL);
1232
1233 CurrentStatement->Flags = ((EFI_IFR_SUBTITLE *) OpCodeData)->Flags;
1234
1235 if (Scope != 0) {
1236 mInScopeSubtitle = TRUE;
1237 }
1238 break;
1239
1240 case EFI_IFR_TEXT_OP:
1241 CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
1242 ASSERT (CurrentStatement != NULL);
1243
1244 CopyMem (&CurrentStatement->TextTwo, &((EFI_IFR_TEXT *) OpCodeData)->TextTwo, sizeof (EFI_STRING_ID));
1245 break;
1246
1247 case EFI_IFR_RESET_BUTTON_OP:
1248 CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
1249 ASSERT (CurrentStatement != NULL);
1250 CopyMem (&CurrentStatement->DefaultId, &((EFI_IFR_RESET_BUTTON *) OpCodeData)->DefaultId, sizeof (EFI_DEFAULT_ID));
1251 break;
1252
1253 //
1254 // Questions
1255 //
1256 case EFI_IFR_ACTION_OP:
1257 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1258 ASSERT (CurrentStatement != NULL);
1259 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_ACTION;
1260
1261 if (OpCodeLength == sizeof (EFI_IFR_ACTION_1)) {
1262 //
1263 // No QuestionConfig present, so no configuration string will be processed
1264 //
1265 CurrentStatement->QuestionConfig = 0;
1266 } else {
1267 CopyMem (&CurrentStatement->QuestionConfig, &((EFI_IFR_ACTION *) OpCodeData)->QuestionConfig, sizeof (EFI_STRING_ID));
1268 }
1269 break;
1270
1271 case EFI_IFR_REF_OP:
1272 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1273 ASSERT (CurrentStatement != NULL);
1274 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_UNDEFINED;
1275 CopyMem (&CurrentStatement->RefFormId, &((EFI_IFR_REF *) OpCodeData)->FormId, sizeof (EFI_FORM_ID));
1276 if (OpCodeLength >= sizeof (EFI_IFR_REF2)) {
1277 CopyMem (&CurrentStatement->RefQuestionId, &((EFI_IFR_REF2 *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
1278
1279 if (OpCodeLength >= sizeof (EFI_IFR_REF3)) {
1280 CopyMem (&CurrentStatement->RefFormSetId, &((EFI_IFR_REF3 *) OpCodeData)->FormSetId, sizeof (EFI_GUID));
1281
1282 if (OpCodeLength >= sizeof (EFI_IFR_REF4)) {
1283 CopyMem (&CurrentStatement->RefDevicePath, &((EFI_IFR_REF4 *) OpCodeData)->DevicePath, sizeof (EFI_STRING_ID));
1284 }
1285 }
1286 }
1287 break;
1288
1289 case EFI_IFR_ONE_OF_OP:
1290 case EFI_IFR_NUMERIC_OP:
1291 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1292 ASSERT(CurrentStatement != NULL);
1293
1294 CurrentStatement->Flags = ((EFI_IFR_ONE_OF *) OpCodeData)->Flags;
1295 Value = &CurrentStatement->HiiValue;
1296
1297 switch (CurrentStatement->Flags & EFI_IFR_NUMERIC_SIZE) {
1298 case EFI_IFR_NUMERIC_SIZE_1:
1299 CurrentStatement->Minimum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MinValue;
1300 CurrentStatement->Maximum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MaxValue;
1301 CurrentStatement->Step = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.Step;
1302 CurrentStatement->StorageWidth = sizeof (UINT8);
1303 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
1304 break;
1305
1306 case EFI_IFR_NUMERIC_SIZE_2:
1307 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MinValue, sizeof (UINT16));
1308 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MaxValue, sizeof (UINT16));
1309 CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.Step, sizeof (UINT16));
1310 CurrentStatement->StorageWidth = sizeof (UINT16);
1311 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
1312 break;
1313
1314 case EFI_IFR_NUMERIC_SIZE_4:
1315 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MinValue, sizeof (UINT32));
1316 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MaxValue, sizeof (UINT32));
1317 CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.Step, sizeof (UINT32));
1318 CurrentStatement->StorageWidth = sizeof (UINT32);
1319 Value->Type = EFI_IFR_TYPE_NUM_SIZE_32;
1320 break;
1321
1322 case EFI_IFR_NUMERIC_SIZE_8:
1323 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.MinValue, sizeof (UINT64));
1324 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.MaxValue, sizeof (UINT64));
1325 CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.Step, sizeof (UINT64));
1326 CurrentStatement->StorageWidth = sizeof (UINT64);
1327 Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
1328 break;
1329
1330 default:
1331 break;
1332 }
1333
1334 InitializeRequestElement (FormSet, CurrentStatement);
1335
1336 if ((Operand == EFI_IFR_ONE_OF_OP) && Scope != 0) {
1337 SuppressForOption = TRUE;
1338 }
1339 break;
1340
1341 case EFI_IFR_ORDERED_LIST_OP:
1342 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1343 ASSERT(CurrentStatement != NULL);
1344
1345 CurrentStatement->Flags = ((EFI_IFR_ORDERED_LIST *) OpCodeData)->Flags;
1346 CurrentStatement->MaxContainers = ((EFI_IFR_ORDERED_LIST *) OpCodeData)->MaxContainers;
1347
1348 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_BUFFER;
1349
1350 if (Scope != 0) {
1351 SuppressForOption = TRUE;
1352 }
1353 break;
1354
1355 case EFI_IFR_CHECKBOX_OP:
1356 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1357 ASSERT(CurrentStatement != NULL);
1358
1359 CurrentStatement->Flags = ((EFI_IFR_CHECKBOX *) OpCodeData)->Flags;
1360 CurrentStatement->StorageWidth = sizeof (BOOLEAN);
1361 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_BOOLEAN;
1362
1363 InitializeRequestElement (FormSet, CurrentStatement);
1364
1365 break;
1366
1367 case EFI_IFR_STRING_OP:
1368 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1369 ASSERT (CurrentStatement != NULL);
1370 //
1371 // MinSize is the minimum number of characters that can be accepted for this opcode,
1372 // MaxSize is the maximum number of characters that can be accepted for this opcode.
1373 // The characters are stored as Unicode, so the storage width should multiply 2.
1374 //
1375 CurrentStatement->Minimum = ((EFI_IFR_STRING *) OpCodeData)->MinSize;
1376 CurrentStatement->Maximum = ((EFI_IFR_STRING *) OpCodeData)->MaxSize;
1377 CurrentStatement->StorageWidth = (UINT16)((UINTN) CurrentStatement->Maximum * sizeof (CHAR16));
1378 CurrentStatement->Flags = ((EFI_IFR_STRING *) OpCodeData)->Flags;
1379
1380 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_STRING;
1381 CurrentStatement->BufferValue = AllocateZeroPool (CurrentStatement->StorageWidth + sizeof (CHAR16));
1382
1383 InitializeRequestElement (FormSet, CurrentStatement);
1384 break;
1385
1386 case EFI_IFR_PASSWORD_OP:
1387 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1388 ASSERT (CurrentStatement != NULL);
1389 //
1390 // MinSize is the minimum number of characters that can be accepted for this opcode,
1391 // MaxSize is the maximum number of characters that can be accepted for this opcode.
1392 // The characters are stored as Unicode, so the storage width should multiply 2.
1393 //
1394 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_PASSWORD *) OpCodeData)->MinSize, sizeof (UINT16));
1395 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_PASSWORD *) OpCodeData)->MaxSize, sizeof (UINT16));
1396 CurrentStatement->StorageWidth = (UINT16)((UINTN) CurrentStatement->Maximum * sizeof (CHAR16));
1397
1398 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_STRING;
1399 CurrentStatement->BufferValue = AllocateZeroPool ((CurrentStatement->StorageWidth + sizeof (CHAR16)));
1400
1401 InitializeRequestElement (FormSet, CurrentStatement);
1402 break;
1403
1404 case EFI_IFR_DATE_OP:
1405 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1406 ASSERT(CurrentStatement != NULL);
1407
1408 CurrentStatement->Flags = ((EFI_IFR_DATE *) OpCodeData)->Flags;
1409 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_DATE;
1410
1411 if ((CurrentStatement->Flags & EFI_QF_DATE_STORAGE) == QF_DATE_STORAGE_NORMAL) {
1412 CurrentStatement->StorageWidth = sizeof (EFI_HII_DATE);
1413
1414 InitializeRequestElement (FormSet, CurrentStatement);
1415 } else {
1416 //
1417 // Don't assign storage for RTC type of date/time
1418 //
1419 CurrentStatement->Storage = NULL;
1420 CurrentStatement->StorageWidth = 0;
1421 }
1422 break;
1423
1424 case EFI_IFR_TIME_OP:
1425 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
1426 ASSERT(CurrentStatement != NULL);
1427
1428 CurrentStatement->Flags = ((EFI_IFR_TIME *) OpCodeData)->Flags;
1429 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_TIME;
1430
1431 if ((CurrentStatement->Flags & QF_TIME_STORAGE) == QF_TIME_STORAGE_NORMAL) {
1432 CurrentStatement->StorageWidth = sizeof (EFI_IFR_TIME);
1433
1434 InitializeRequestElement (FormSet, CurrentStatement);
1435 } else {
1436 //
1437 // Don't assign storage for RTC type of date/time
1438 //
1439 CurrentStatement->Storage = NULL;
1440 CurrentStatement->StorageWidth = 0;
1441 }
1442 break;
1443
1444 //
1445 // Default
1446 //
1447 case EFI_IFR_DEFAULT_OP:
1448 //
1449 // EFI_IFR_DEFAULT appear in scope of a Question,
1450 // It creates a default value for the current question.
1451 // A Question may have more than one Default value which have different default types.
1452 //
1453 CurrentDefault = AllocateZeroPool (sizeof (QUESTION_DEFAULT));
1454 ASSERT (CurrentDefault != NULL);
1455 CurrentDefault->Signature = QUESTION_DEFAULT_SIGNATURE;
1456
1457 CurrentDefault->Value.Type = ((EFI_IFR_DEFAULT *) OpCodeData)->Type;
1458 CopyMem (&CurrentDefault->DefaultId, &((EFI_IFR_DEFAULT *) OpCodeData)->DefaultId, sizeof (UINT16));
1459 CopyMem (&CurrentDefault->Value.Value, &((EFI_IFR_DEFAULT *) OpCodeData)->Value, sizeof (EFI_IFR_TYPE_VALUE));
1460 ExtendValueToU64 (&CurrentDefault->Value);
1461
1462 //
1463 // Insert to Default Value list of current Question
1464 //
1465 InsertTailList (&CurrentStatement->DefaultListHead, &CurrentDefault->Link);
1466
1467 if (Scope != 0) {
1468 InScopeDefault = TRUE;
1469 }
1470 break;
1471
1472 //
1473 // Option
1474 //
1475 case EFI_IFR_ONE_OF_OPTION_OP:
1476 //
1477 // EFI_IFR_ONE_OF_OPTION appear in scope of a Question.
1478 // It create a selection for use in current Question.
1479 //
1480 CurrentOption = AllocateZeroPool (sizeof (QUESTION_OPTION));
1481 ASSERT (CurrentOption != NULL);
1482 CurrentOption->Signature = QUESTION_OPTION_SIGNATURE;
1483
1484 CurrentOption->Flags = ((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Flags;
1485 CurrentOption->Value.Type = ((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Type;
1486 CopyMem (&CurrentOption->Text, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Option, sizeof (EFI_STRING_ID));
1487 CopyMem (&CurrentOption->Value.Value, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Value, sizeof (EFI_IFR_TYPE_VALUE));
1488 ExtendValueToU64 (&CurrentOption->Value);
1489
1490 if (InScopeOptionSuppress) {
1491 CurrentOption->SuppressExpression = OptionSuppressExpression;
1492 }
1493
1494 //
1495 // Insert to Option list of current Question
1496 //
1497 InsertTailList (&CurrentStatement->OptionListHead, &CurrentOption->Link);
1498
1499 //
1500 // Now we know the Storage width of nested Ordered List
1501 //
1502 if ((CurrentStatement->Operand == EFI_IFR_ORDERED_LIST_OP) && (CurrentStatement->BufferValue == NULL)) {
1503 Width = 1;
1504 switch (CurrentOption->Value.Type) {
1505 case EFI_IFR_TYPE_NUM_SIZE_8:
1506 Width = 1;
1507 break;
1508
1509 case EFI_IFR_TYPE_NUM_SIZE_16:
1510 Width = 2;
1511 break;
1512
1513 case EFI_IFR_TYPE_NUM_SIZE_32:
1514 Width = 4;
1515 break;
1516
1517 case EFI_IFR_TYPE_NUM_SIZE_64:
1518 Width = 8;
1519 break;
1520
1521 default:
1522 //
1523 // Invalid type for Ordered List
1524 //
1525 break;
1526 }
1527
1528 CurrentStatement->StorageWidth = (UINT16) (CurrentStatement->MaxContainers * Width);
1529 CurrentStatement->BufferValue = AllocateZeroPool (CurrentStatement->StorageWidth);
1530 CurrentStatement->ValueType = CurrentOption->Value.Type;
1531
1532 InitializeRequestElement (FormSet, CurrentStatement);
1533 }
1534 break;
1535
1536 //
1537 // Conditional
1538 //
1539 case EFI_IFR_NO_SUBMIT_IF_OP:
1540 case EFI_IFR_INCONSISTENT_IF_OP:
1541 //
1542 // Create an Expression node
1543 //
1544 CurrentExpression = CreateExpression (CurrentForm);
1545 CopyMem (&CurrentExpression->Error, &((EFI_IFR_INCONSISTENT_IF *) OpCodeData)->Error, sizeof (EFI_STRING_ID));
1546
1547 if (Operand == EFI_IFR_NO_SUBMIT_IF_OP) {
1548 CurrentExpression->Type = EFI_HII_EXPRESSION_NO_SUBMIT_IF;
1549 InsertTailList (&CurrentStatement->NoSubmitListHead, &CurrentExpression->Link);
1550 } else {
1551 CurrentExpression->Type = EFI_HII_EXPRESSION_INCONSISTENT_IF;
1552 InsertTailList (&CurrentStatement->InconsistentListHead, &CurrentExpression->Link);
1553 }
1554
1555 //
1556 // Take a look at next OpCode to see whether current expression consists
1557 // of single OpCode
1558 //
1559 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
1560 SingleOpCodeExpression = TRUE;
1561 }
1562 break;
1563
1564 case EFI_IFR_SUPPRESS_IF_OP:
1565 //
1566 // Question and Option will appear in scope of this OpCode
1567 //
1568 CurrentExpression = CreateExpression (CurrentForm);
1569 CurrentExpression->Type = EFI_HII_EXPRESSION_SUPPRESS_IF;
1570
1571 if (CurrentForm == NULL) {
1572 InsertTailList (&FormSet->ExpressionListHead, &CurrentExpression->Link);
1573 } else {
1574 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
1575 }
1576
1577 if (SuppressForOption) {
1578 InScopeOptionSuppress = TRUE;
1579 OptionSuppressExpression = CurrentExpression;
1580 } else if (SuppressForQuestion) {
1581 mInScopeSuppress = TRUE;
1582 mSuppressExpression = CurrentExpression;
1583 } else {
1584 InScopeFormSuppress = TRUE;
1585 FormSuppressExpression = CurrentExpression;
1586 }
1587
1588 //
1589 // Take a look at next OpCode to see whether current expression consists
1590 // of single OpCode
1591 //
1592 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
1593 SingleOpCodeExpression = TRUE;
1594 }
1595 break;
1596
1597 case EFI_IFR_GRAY_OUT_IF_OP:
1598 //
1599 // Questions will appear in scope of this OpCode
1600 //
1601 CurrentExpression = CreateExpression (CurrentForm);
1602 CurrentExpression->Type = EFI_HII_EXPRESSION_GRAY_OUT_IF;
1603 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
1604
1605 mInScopeGrayOut = TRUE;
1606 mGrayOutExpression = CurrentExpression;
1607
1608 //
1609 // Take a look at next OpCode to see whether current expression consists
1610 // of single OpCode
1611 //
1612 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
1613 SingleOpCodeExpression = TRUE;
1614 }
1615 break;
1616
1617 case EFI_IFR_DISABLE_IF_OP:
1618 //
1619 // The DisableIf expression should only rely on constant, so it could be
1620 // evaluated at initialization and it will not be queued
1621 //
1622 CurrentExpression = AllocateZeroPool (sizeof (FORM_EXPRESSION));
1623 ASSERT (CurrentExpression != NULL);
1624 CurrentExpression->Signature = FORM_EXPRESSION_SIGNATURE;
1625 CurrentExpression->Type = EFI_HII_EXPRESSION_DISABLE_IF;
1626 InitializeListHead (&CurrentExpression->OpCodeListHead);
1627
1628 if (CurrentForm != NULL) {
1629 //
1630 // This is DisableIf for Question, enqueue it to Form expression list
1631 //
1632 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
1633 }
1634
1635 mDisableExpression = CurrentExpression;
1636 mInScopeDisable = TRUE;
1637 OpCodeDisabled = FALSE;
1638
1639 //
1640 // Take a look at next OpCode to see whether current expression consists
1641 // of single OpCode
1642 //
1643 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
1644 SingleOpCodeExpression = TRUE;
1645 }
1646 break;
1647
1648 //
1649 // Expression
1650 //
1651 case EFI_IFR_VALUE_OP:
1652 CurrentExpression = CreateExpression (CurrentForm);
1653 CurrentExpression->Type = EFI_HII_EXPRESSION_VALUE;
1654 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
1655
1656 if (InScopeDefault) {
1657 //
1658 // Used for default (EFI_IFR_DEFAULT)
1659 //
1660 CurrentDefault->ValueExpression = CurrentExpression;
1661 } else {
1662 //
1663 // If used for a question, then the question will be read-only
1664 //
1665 //
1666 // Make sure CurrentStatement is not NULL.
1667 // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
1668 // file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler.
1669 //
1670 ASSERT (CurrentStatement != NULL);
1671 CurrentStatement->ValueExpression = CurrentExpression;
1672 }
1673
1674 //
1675 // Take a look at next OpCode to see whether current expression consists
1676 // of single OpCode
1677 //
1678 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
1679 SingleOpCodeExpression = TRUE;
1680 }
1681 break;
1682
1683 case EFI_IFR_RULE_OP:
1684 CurrentExpression = CreateExpression (CurrentForm);
1685 CurrentExpression->Type = EFI_HII_EXPRESSION_RULE;
1686
1687 CurrentExpression->RuleId = ((EFI_IFR_RULE *) OpCodeData)->RuleId;
1688 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
1689
1690 //
1691 // Take a look at next OpCode to see whether current expression consists
1692 // of single OpCode
1693 //
1694 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
1695 SingleOpCodeExpression = TRUE;
1696 }
1697 break;
1698
1699 //
1700 // Image
1701 //
1702 case EFI_IFR_IMAGE_OP:
1703 //
1704 // Get ScopeOpcode from top of stack
1705 //
1706 PopScope (&ScopeOpCode);
1707 PushScope (ScopeOpCode);
1708
1709 switch (ScopeOpCode) {
1710 case EFI_IFR_FORM_SET_OP:
1711 ImageId = &FormSet->ImageId;
1712 break;
1713
1714 case EFI_IFR_FORM_OP:
1715 ASSERT (CurrentForm != NULL);
1716 ImageId = &CurrentForm->ImageId;
1717 break;
1718
1719 case EFI_IFR_ONE_OF_OPTION_OP:
1720 ImageId = &CurrentOption->ImageId;
1721 break;
1722
1723 default:
1724 //
1725 // Make sure CurrentStatement is not NULL.
1726 // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
1727 // file is wrongly generated by tools such as VFR Compiler.
1728 //
1729 ASSERT (CurrentStatement != NULL);
1730 ImageId = &CurrentStatement->ImageId;
1731 break;
1732 }
1733
1734 ASSERT (ImageId != NULL);
1735 CopyMem (ImageId, &((EFI_IFR_IMAGE *) OpCodeData)->Id, sizeof (EFI_IMAGE_ID));
1736 break;
1737
1738 //
1739 // Refresh
1740 //
1741 case EFI_IFR_REFRESH_OP:
1742 ASSERT (CurrentStatement != NULL);
1743 CurrentStatement->RefreshInterval = ((EFI_IFR_REFRESH *) OpCodeData)->RefreshInterval;
1744 break;
1745
1746 //
1747 // Vendor specific
1748 //
1749 case EFI_IFR_GUID_OP:
1750 if (CompareGuid (&gEfiIfrTianoGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
1751 //
1752 // Tiano specific GUIDed opcodes
1753 //
1754 switch (((EFI_IFR_GUID_LABEL *) OpCodeData)->ExtendOpCode) {
1755 case EFI_IFR_EXTEND_OP_LABEL:
1756 //
1757 // just ignore label
1758 //
1759 break;
1760
1761 case EFI_IFR_EXTEND_OP_BANNER:
1762 //
1763 // By SubClass to get Banner Data from Front Page
1764 //
1765 if (FormSet->SubClass == EFI_FRONT_PAGE_SUBCLASS) {
1766 CopyMem (
1767 &gBannerData->Banner[((EFI_IFR_GUID_BANNER *) OpCodeData)->LineNumber][
1768 ((EFI_IFR_GUID_BANNER *) OpCodeData)->Alignment],
1769 &((EFI_IFR_GUID_BANNER *) OpCodeData)->Title,
1770 sizeof (EFI_STRING_ID)
1771 );
1772 }
1773 break;
1774
1775 case EFI_IFR_EXTEND_OP_CLASS:
1776 CopyMem (&FormSet->Class, &((EFI_IFR_GUID_CLASS *) OpCodeData)->Class, sizeof (UINT16));
1777 break;
1778
1779 case EFI_IFR_EXTEND_OP_SUBCLASS:
1780 CopyMem (&FormSet->SubClass, &((EFI_IFR_GUID_SUBCLASS *) OpCodeData)->SubClass, sizeof (UINT16));
1781 break;
1782
1783 default:
1784 break;
1785 }
1786 }
1787
1788 break;
1789
1790 //
1791 // Scope End
1792 //
1793 case EFI_IFR_END_OP:
1794 Status = PopScope (&ScopeOpCode);
1795 if (EFI_ERROR (Status)) {
1796 ResetScopeStack ();
1797 return Status;
1798 }
1799
1800 switch (ScopeOpCode) {
1801 case EFI_IFR_FORM_SET_OP:
1802 //
1803 // End of FormSet, update FormSet IFR binary length
1804 // to stop parsing substantial OpCodes
1805 //
1806 FormSet->IfrBinaryLength = OpCodeOffset;
1807 break;
1808
1809 case EFI_IFR_FORM_OP:
1810 //
1811 // End of Form
1812 //
1813 CurrentForm = NULL;
1814 SuppressForQuestion = FALSE;
1815 break;
1816
1817 case EFI_IFR_ONE_OF_OPTION_OP:
1818 //
1819 // End of Option
1820 //
1821 CurrentOption = NULL;
1822 break;
1823
1824 case EFI_IFR_SUBTITLE_OP:
1825 mInScopeSubtitle = FALSE;
1826 break;
1827
1828 case EFI_IFR_NO_SUBMIT_IF_OP:
1829 case EFI_IFR_INCONSISTENT_IF_OP:
1830 //
1831 // Ignore end of EFI_IFR_NO_SUBMIT_IF and EFI_IFR_INCONSISTENT_IF
1832 //
1833 break;
1834
1835 case EFI_IFR_SUPPRESS_IF_OP:
1836 if (SuppressForOption) {
1837 InScopeOptionSuppress = FALSE;
1838 } else if (SuppressForQuestion) {
1839 mInScopeSuppress = FALSE;
1840 } else {
1841 InScopeFormSuppress = FALSE;
1842 }
1843 break;
1844
1845 case EFI_IFR_GRAY_OUT_IF_OP:
1846 mInScopeGrayOut = FALSE;
1847 break;
1848
1849 case EFI_IFR_DISABLE_IF_OP:
1850 mInScopeDisable = FALSE;
1851 OpCodeDisabled = FALSE;
1852 break;
1853
1854 case EFI_IFR_ONE_OF_OP:
1855 case EFI_IFR_ORDERED_LIST_OP:
1856 SuppressForOption = FALSE;
1857 break;
1858
1859 case EFI_IFR_DEFAULT_OP:
1860 InScopeDefault = FALSE;
1861 break;
1862
1863 default:
1864 if (IsExpressionOpCode (ScopeOpCode)) {
1865 if (mInScopeDisable && CurrentForm == NULL) {
1866 //
1867 // This is DisableIf expression for Form, it should be a constant expression
1868 //
1869 ASSERT (CurrentExpression != NULL);
1870 Status = EvaluateExpression (FormSet, CurrentForm, CurrentExpression);
1871 if (EFI_ERROR (Status)) {
1872 return Status;
1873 }
1874
1875 if (CurrentExpression->Result.Type != EFI_IFR_TYPE_BOOLEAN) {
1876 return EFI_INVALID_PARAMETER;
1877 }
1878
1879 OpCodeDisabled = CurrentExpression->Result.Value.b;
1880 //
1881 // DisableIf Expression is only used once and not quequed, free it
1882 //
1883 DestroyExpression (CurrentExpression);
1884 }
1885
1886 //
1887 // End of current Expression
1888 //
1889 CurrentExpression = NULL;
1890 }
1891 break;
1892 }
1893 break;
1894
1895 default:
1896 break;
1897 }
1898 }
1899
1900 return EFI_SUCCESS;
1901 }
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