1 /** @file 2 Parser for IFR binary encoding. 3 4 Copyright (c) 2007 - 2016, 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 UINT16 mStatementIndex; 18 UINT16 mExpressionOpCodeIndex; 19 EFI_QUESTION_ID mUsedQuestionId; 20 extern LIST_ENTRY gBrowserStorageList; 21 /** 22 Initialize Statement header members. 23 24 @param OpCodeData Pointer of the raw OpCode data. 25 @param FormSet Pointer of the current FormSet. 26 @param Form Pointer of the current Form. 27 28 @return The Statement. 29 30 **/ 31 FORM_BROWSER_STATEMENT * 32 CreateStatement ( 33 IN UINT8 *OpCodeData, 34 IN OUT FORM_BROWSER_FORMSET *FormSet, 35 IN OUT FORM_BROWSER_FORM *Form 36 ) 37 { 38 FORM_BROWSER_STATEMENT *Statement; 39 EFI_IFR_STATEMENT_HEADER *StatementHdr; 40 INTN ConditionalExprCount; 41 42 if (Form == NULL) { 43 // 44 // Only guid op may out side the form level. 45 // 46 ASSERT (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_GUID_OP); 47 } 48 49 Statement = &FormSet->StatementBuffer[mStatementIndex]; 50 mStatementIndex++; 51 52 InitializeListHead (&Statement->DefaultListHead); 53 InitializeListHead (&Statement->OptionListHead); 54 InitializeListHead (&Statement->InconsistentListHead); 55 InitializeListHead (&Statement->NoSubmitListHead); 56 InitializeListHead (&Statement->WarningListHead); 57 58 Statement->Signature = FORM_BROWSER_STATEMENT_SIGNATURE; 59 60 Statement->Operand = ((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode; 61 Statement->OpCode = (EFI_IFR_OP_HEADER *) OpCodeData; 62 63 StatementHdr = (EFI_IFR_STATEMENT_HEADER *) (OpCodeData + sizeof (EFI_IFR_OP_HEADER)); 64 CopyMem (&Statement->Prompt, &StatementHdr->Prompt, sizeof (EFI_STRING_ID)); 65 CopyMem (&Statement->Help, &StatementHdr->Help, sizeof (EFI_STRING_ID)); 66 67 ConditionalExprCount = GetConditionalExpressionCount(ExpressStatement); 68 if (ConditionalExprCount > 0) { 69 // 70 // Form is inside of suppressif 71 // 72 73 Statement->Expression = (FORM_EXPRESSION_LIST *) AllocatePool( 74 (UINTN) (sizeof(FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof(FORM_EXPRESSION *)))); 75 ASSERT (Statement->Expression != NULL); 76 Statement->Expression->Count = (UINTN) ConditionalExprCount; 77 Statement->Expression->Signature = FORM_EXPRESSION_LIST_SIGNATURE; 78 CopyMem (Statement->Expression->Expression, GetConditionalExpressionList(ExpressStatement), (UINTN) (sizeof (FORM_EXPRESSION *) * ConditionalExprCount)); 79 } 80 81 // 82 // Insert this Statement into current Form 83 // 84 if (Form == NULL) { 85 InsertTailList (&FormSet->StatementListOSF, &Statement->Link); 86 } else { 87 InsertTailList (&Form->StatementListHead, &Statement->Link); 88 } 89 return Statement; 90 } 91 92 /** 93 Convert a numeric value to a Unicode String and insert it to String Package. 94 This string is used as the Unicode Name for the EFI Variable. This is to support 95 the deprecated vareqval opcode. 96 97 @param FormSet The FormSet. 98 @param Statement The numeric question whose VarStoreInfo.VarName is the 99 numeric value which is used to produce the Unicode Name 100 for the EFI Variable. 101 102 If the Statement is NULL, the ASSERT. 103 If the opcode is not Numeric, then ASSERT. 104 105 @retval EFI_SUCCESS The funtion always succeeds. 106 **/ 107 EFI_STATUS 108 UpdateCheckBoxStringToken ( 109 IN CONST FORM_BROWSER_FORMSET *FormSet, 110 IN FORM_BROWSER_STATEMENT *Statement 111 ) 112 { 113 CHAR16 Str[MAXIMUM_VALUE_CHARACTERS]; 114 EFI_STRING_ID Id; 115 116 ASSERT (Statement != NULL); 117 ASSERT (Statement->Operand == EFI_IFR_NUMERIC_OP); 118 119 UnicodeValueToString (Str, 0, Statement->VarStoreInfo.VarName, MAXIMUM_VALUE_CHARACTERS - 1); 120 121 Id = HiiSetString (FormSet->HiiHandle, 0, Str, NULL); 122 if (Id == 0) { 123 return EFI_OUT_OF_RESOURCES; 124 } 125 126 Statement->VarStoreInfo.VarName = Id; 127 128 return EFI_SUCCESS; 129 } 130 131 /** 132 Check if the next opcode is the EFI_IFR_EXTEND_OP_VAREQNAME. 133 134 @param OpCodeData The current opcode. 135 136 @retval TRUE Yes. 137 @retval FALSE No. 138 **/ 139 BOOLEAN 140 IsNextOpCodeGuidedVarEqName ( 141 IN UINT8 *OpCodeData 142 ) 143 { 144 // 145 // Get next opcode 146 // 147 OpCodeData += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length; 148 if (*OpCodeData == EFI_IFR_GUID_OP) { 149 if (CompareGuid (&gEfiIfrFrameworkGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) { 150 // 151 // Specific GUIDed opcodes to support IFR generated from Framework HII VFR 152 // 153 if ((((EFI_IFR_GUID_VAREQNAME *) OpCodeData)->ExtendOpCode) == EFI_IFR_EXTEND_OP_VAREQNAME) { 154 return TRUE; 155 } 156 } 157 } 158 159 return FALSE; 160 } 161 162 /** 163 Initialize Question's members. 164 165 @param OpCodeData Pointer of the raw OpCode data. 166 @param FormSet Pointer of the current FormSet. 167 @param Form Pointer of the current Form. 168 169 @return The Question. 170 171 **/ 172 FORM_BROWSER_STATEMENT * 173 CreateQuestion ( 174 IN UINT8 *OpCodeData, 175 IN OUT FORM_BROWSER_FORMSET *FormSet, 176 IN OUT FORM_BROWSER_FORM *Form 177 ) 178 { 179 FORM_BROWSER_STATEMENT *Statement; 180 EFI_IFR_QUESTION_HEADER *QuestionHdr; 181 LIST_ENTRY *Link; 182 FORMSET_STORAGE *Storage; 183 NAME_VALUE_NODE *NameValueNode; 184 EFI_STATUS Status; 185 BOOLEAN Find; 186 187 Statement = CreateStatement (OpCodeData, FormSet, Form); 188 if (Statement == NULL) { 189 return NULL; 190 } 191 192 QuestionHdr = (EFI_IFR_QUESTION_HEADER *) (OpCodeData + sizeof (EFI_IFR_OP_HEADER)); 193 CopyMem (&Statement->QuestionId, &QuestionHdr->QuestionId, sizeof (EFI_QUESTION_ID)); 194 CopyMem (&Statement->VarStoreId, &QuestionHdr->VarStoreId, sizeof (EFI_VARSTORE_ID)); 195 CopyMem (&Statement->VarStoreInfo.VarOffset, &QuestionHdr->VarStoreInfo.VarOffset, sizeof (UINT16)); 196 197 Statement->QuestionFlags = QuestionHdr->Flags; 198 199 if (Statement->VarStoreId == 0) { 200 // 201 // VarStoreId of zero indicates no variable storage 202 // 203 return Statement; 204 } 205 206 // 207 // Take a look at next OpCode to see whether it is a GUIDed opcode to support 208 // Framework Compatibility 209 // 210 if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) { 211 if ((*OpCodeData == EFI_IFR_NUMERIC_OP) && IsNextOpCodeGuidedVarEqName (OpCodeData)) { 212 Status = UpdateCheckBoxStringToken (FormSet, Statement); 213 if (EFI_ERROR (Status)) { 214 return NULL; 215 } 216 } 217 } 218 219 // 220 // Find Storage for this Question 221 // 222 Link = GetFirstNode (&FormSet->StorageListHead); 223 while (!IsNull (&FormSet->StorageListHead, Link)) { 224 Storage = FORMSET_STORAGE_FROM_LINK (Link); 225 226 if (Storage->VarStoreId == Statement->VarStoreId) { 227 Statement->Storage = Storage->BrowserStorage; 228 break; 229 } 230 231 Link = GetNextNode (&FormSet->StorageListHead, Link); 232 } 233 ASSERT (Statement->Storage != NULL); 234 235 // 236 // Initialilze varname for Name/Value or EFI Variable 237 // 238 if ((Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) || 239 (Statement->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) { 240 Statement->VariableName = GetToken (Statement->VarStoreInfo.VarName, FormSet->HiiHandle); 241 ASSERT (Statement->VariableName != NULL); 242 243 if (Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) { 244 // 245 // Check whether old string node already exist. 246 // 247 Find = FALSE; 248 if (!IsListEmpty(&Statement->Storage->NameValueListHead)) { 249 Link = GetFirstNode (&Statement->Storage->NameValueListHead); 250 while (!IsNull (&Statement->Storage->NameValueListHead, Link)) { 251 NameValueNode = NAME_VALUE_NODE_FROM_LINK (Link); 252 253 if (StrCmp (Statement->VariableName, NameValueNode->Name) == 0) { 254 Find = TRUE; 255 break; 256 } 257 258 Link = GetNextNode (&Statement->Storage->NameValueListHead, Link); 259 } 260 } 261 262 if (!Find) { 263 // 264 // Insert to Name/Value varstore list 265 // 266 NameValueNode = AllocateZeroPool (sizeof (NAME_VALUE_NODE)); 267 ASSERT (NameValueNode != NULL); 268 NameValueNode->Signature = NAME_VALUE_NODE_SIGNATURE; 269 NameValueNode->Name = AllocateCopyPool (StrSize (Statement->VariableName), Statement->VariableName); 270 ASSERT (NameValueNode->Name != NULL); 271 NameValueNode->Value = AllocateZeroPool (0x10); 272 ASSERT (NameValueNode->Value != NULL); 273 NameValueNode->EditValue = AllocateZeroPool (0x10); 274 ASSERT (NameValueNode->EditValue != NULL); 275 276 InsertTailList (&Statement->Storage->NameValueListHead, &NameValueNode->Link); 277 } 278 } 279 } 280 281 return Statement; 282 } 283 284 285 /** 286 Allocate a FORM_EXPRESSION node. 287 288 @param Form The Form associated with this Expression 289 @param OpCode The binary opcode data. 290 291 @return Pointer to a FORM_EXPRESSION data structure. 292 293 **/ 294 FORM_EXPRESSION * 295 CreateExpression ( 296 IN OUT FORM_BROWSER_FORM *Form, 297 IN UINT8 *OpCode 298 ) 299 { 300 FORM_EXPRESSION *Expression; 301 302 Expression = AllocateZeroPool (sizeof (FORM_EXPRESSION)); 303 ASSERT (Expression != NULL); 304 Expression->Signature = FORM_EXPRESSION_SIGNATURE; 305 InitializeListHead (&Expression->OpCodeListHead); 306 Expression->OpCode = (EFI_IFR_OP_HEADER *) OpCode; 307 308 return Expression; 309 } 310 311 /** 312 Create ConfigHdr string for a storage. 313 314 @param FormSet Pointer of the current FormSet 315 @param Storage Pointer of the storage 316 317 @retval EFI_SUCCESS Initialize ConfigHdr success 318 319 **/ 320 EFI_STATUS 321 InitializeConfigHdr ( 322 IN FORM_BROWSER_FORMSET *FormSet, 323 IN OUT FORMSET_STORAGE *Storage 324 ) 325 { 326 CHAR16 *Name; 327 328 if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_BUFFER || 329 Storage->BrowserStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) { 330 Name = Storage->BrowserStorage->Name; 331 } else { 332 Name = NULL; 333 } 334 335 Storage->ConfigHdr = HiiConstructConfigHdr ( 336 &Storage->BrowserStorage->Guid, 337 Name, 338 FormSet->DriverHandle 339 ); 340 341 if (Storage->ConfigHdr == NULL) { 342 return EFI_NOT_FOUND; 343 } 344 345 return EFI_SUCCESS; 346 } 347 348 /** 349 Find the global storage link base on the input storate type, name and guid. 350 351 For EFI_HII_VARSTORE_EFI_VARIABLE and EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER, 352 same guid + name = same storage 353 354 For EFI_HII_VARSTORE_NAME_VALUE: 355 same guid + HiiHandle = same storage 356 357 For EFI_HII_VARSTORE_BUFFER: 358 same guid + name + HiiHandle = same storage 359 360 @param StorageType Storage type. 361 @param StorageGuid Storage guid. 362 @param StorageName Storage Name. 363 @param HiiHandle HiiHandle for this varstore. 364 365 @return Pointer to a GLOBAL_STORAGE data structure. 366 367 **/ 368 BROWSER_STORAGE * 369 FindStorageInList ( 370 IN UINT8 StorageType, 371 IN EFI_GUID *StorageGuid, 372 IN CHAR16 *StorageName, 373 IN EFI_HII_HANDLE HiiHandle 374 ) 375 { 376 LIST_ENTRY *Link; 377 BROWSER_STORAGE *BrowserStorage; 378 379 Link = GetFirstNode (&gBrowserStorageList); 380 while (!IsNull (&gBrowserStorageList, Link)) { 381 BrowserStorage = BROWSER_STORAGE_FROM_LINK (Link); 382 Link = GetNextNode (&gBrowserStorageList, Link); 383 384 if ((BrowserStorage->Type == StorageType) && CompareGuid (&BrowserStorage->Guid, StorageGuid)) { 385 if (StorageType == EFI_HII_VARSTORE_NAME_VALUE) { 386 if (BrowserStorage->HiiHandle == HiiHandle) { 387 return BrowserStorage; 388 } 389 390 continue; 391 } 392 393 ASSERT (StorageName != NULL); 394 if (StrCmp (BrowserStorage->Name, StorageName) == 0) { 395 if (StorageType == EFI_HII_VARSTORE_EFI_VARIABLE || StorageType == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) { 396 return BrowserStorage; 397 } else if (StorageType == EFI_HII_VARSTORE_BUFFER && BrowserStorage->HiiHandle == HiiHandle) { 398 return BrowserStorage; 399 } 400 } 401 } 402 } 403 404 return NULL; 405 } 406 407 /** 408 Intialize the Global Storage. 409 410 @param BrowserStorage Pointer to the global storage. 411 @param StorageType Storage type. 412 @param OpCodeData Binary data for this opcode. 413 414 **/ 415 VOID 416 IntializeBrowserStorage ( 417 IN BROWSER_STORAGE *BrowserStorage, 418 IN UINT8 StorageType, 419 IN UINT8 *OpCodeData 420 ) 421 { 422 switch (StorageType) { 423 case EFI_HII_VARSTORE_BUFFER: 424 CopyMem (&BrowserStorage->Guid, &((EFI_IFR_VARSTORE *) OpCodeData)->Guid, sizeof (EFI_GUID)); 425 CopyMem (&BrowserStorage->Size, &((EFI_IFR_VARSTORE *) OpCodeData)->Size, sizeof (UINT16)); 426 427 BrowserStorage->Buffer = AllocateZeroPool (BrowserStorage->Size); 428 BrowserStorage->EditBuffer = AllocateZeroPool (BrowserStorage->Size); 429 break; 430 431 case EFI_HII_VARSTORE_EFI_VARIABLE: 432 case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER: 433 CopyMem (&BrowserStorage->Guid, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Guid, sizeof (EFI_GUID)); 434 CopyMem (&BrowserStorage->Attributes, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Attributes, sizeof (UINT32)); 435 CopyMem (&BrowserStorage->Size, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Size, sizeof (UINT16)); 436 437 if (StorageType == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) { 438 BrowserStorage->Buffer = AllocateZeroPool (BrowserStorage->Size); 439 BrowserStorage->EditBuffer = AllocateZeroPool (BrowserStorage->Size); 440 } 441 break; 442 443 case EFI_HII_VARSTORE_NAME_VALUE: 444 CopyMem (&BrowserStorage->Guid, &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->Guid, sizeof (EFI_GUID)); 445 446 InitializeListHead (&BrowserStorage->NameValueListHead); 447 break; 448 449 default: 450 break; 451 } 452 } 453 454 /** 455 Check whether exist device path info in the ConfigHdr string. 456 457 @param String UEFI configuration string 458 459 @retval TRUE Device Path exist. 460 @retval FALSE Not exist device path info. 461 462 **/ 463 BOOLEAN 464 IsDevicePathExist ( 465 IN EFI_STRING String 466 ) 467 { 468 UINTN Length; 469 470 for (; (*String != 0 && StrnCmp (String, L"PATH=", StrLen (L"PATH=")) != 0); String++); 471 if (*String == 0) { 472 return FALSE; 473 } 474 475 String += StrLen (L"PATH="); 476 if (*String == 0) { 477 return FALSE; 478 } 479 480 for (Length = 0; *String != 0 && *String != L'&'; String++, Length++); 481 if (((Length + 1) / 2) < sizeof (EFI_DEVICE_PATH_PROTOCOL)) { 482 return FALSE; 483 } 484 485 return TRUE; 486 } 487 488 /** 489 Allocate a FORMSET_STORAGE data structure and insert to FormSet Storage List. 490 491 @param FormSet Pointer of the current FormSet 492 @param StorageType Storage type. 493 @param OpCodeData Binary data for this opcode. 494 495 @return Pointer to a FORMSET_STORAGE data structure. 496 497 **/ 498 FORMSET_STORAGE * 499 CreateStorage ( 500 IN FORM_BROWSER_FORMSET *FormSet, 501 IN UINT8 StorageType, 502 IN UINT8 *OpCodeData 503 ) 504 { 505 FORMSET_STORAGE *Storage; 506 CHAR16 *UnicodeString; 507 UINT16 Index; 508 BROWSER_STORAGE *BrowserStorage; 509 EFI_GUID *StorageGuid; 510 CHAR8 *StorageName; 511 512 UnicodeString = NULL; 513 StorageName = NULL; 514 switch (StorageType) { 515 case EFI_HII_VARSTORE_BUFFER: 516 StorageGuid = (EFI_GUID *) (CHAR8*) &((EFI_IFR_VARSTORE *) OpCodeData)->Guid; 517 StorageName = (CHAR8 *) ((EFI_IFR_VARSTORE *) OpCodeData)->Name; 518 break; 519 520 case EFI_HII_VARSTORE_EFI_VARIABLE: 521 case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER: 522 StorageGuid = (EFI_GUID *) (CHAR8*) &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Guid; 523 StorageName = (CHAR8 *) ((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Name; 524 break; 525 526 default: 527 ASSERT (StorageType == EFI_HII_VARSTORE_NAME_VALUE); 528 StorageGuid = &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->Guid; 529 break; 530 } 531 532 if (StorageType != EFI_HII_VARSTORE_NAME_VALUE) { 533 ASSERT (StorageName != NULL); 534 535 UnicodeString = AllocateZeroPool (AsciiStrSize (StorageName) * 2); 536 ASSERT (UnicodeString != NULL); 537 for (Index = 0; StorageName[Index] != 0; Index++) { 538 UnicodeString[Index] = (CHAR16) StorageName[Index]; 539 } 540 } 541 542 Storage = AllocateZeroPool (sizeof (FORMSET_STORAGE)); 543 ASSERT (Storage != NULL); 544 Storage->Signature = FORMSET_STORAGE_SIGNATURE; 545 InsertTailList (&FormSet->StorageListHead, &Storage->Link); 546 547 BrowserStorage = FindStorageInList(StorageType, StorageGuid, UnicodeString, FormSet->HiiHandle); 548 if (BrowserStorage == NULL) { 549 BrowserStorage = AllocateZeroPool (sizeof (BROWSER_STORAGE)); 550 ASSERT (BrowserStorage != NULL); 551 552 BrowserStorage->Signature = BROWSER_STORAGE_SIGNATURE; 553 InsertTailList (&gBrowserStorageList, &BrowserStorage->Link); 554 555 IntializeBrowserStorage (BrowserStorage, StorageType, OpCodeData); 556 BrowserStorage->Type = StorageType; 557 if (StorageType != EFI_HII_VARSTORE_NAME_VALUE) { 558 BrowserStorage->Name = UnicodeString; 559 } 560 561 BrowserStorage->HiiHandle = FormSet->HiiHandle; 562 563 BrowserStorage->Initialized = FALSE; 564 } 565 566 Storage->BrowserStorage = BrowserStorage; 567 InitializeConfigHdr (FormSet, Storage); 568 Storage->ConfigRequest = AllocateCopyPool (StrSize (Storage->ConfigHdr), Storage->ConfigHdr); 569 Storage->SpareStrLen = 0; 570 571 return Storage; 572 } 573 574 /** 575 Get Formset_storage base on the input varstoreid info. 576 577 @param FormSet Pointer of the current FormSet. 578 @param VarStoreId Varstore ID info. 579 580 @return Pointer to a FORMSET_STORAGE data structure. 581 582 **/ 583 FORMSET_STORAGE * 584 GetFstStgFromVarId ( 585 IN FORM_BROWSER_FORMSET *FormSet, 586 IN EFI_VARSTORE_ID VarStoreId 587 ) 588 { 589 FORMSET_STORAGE *FormsetStorage; 590 LIST_ENTRY *Link; 591 BOOLEAN Found; 592 593 Found = FALSE; 594 FormsetStorage = NULL; 595 // 596 // Find Formset Storage for this Question 597 // 598 Link = GetFirstNode (&FormSet->StorageListHead); 599 while (!IsNull (&FormSet->StorageListHead, Link)) { 600 FormsetStorage = FORMSET_STORAGE_FROM_LINK (Link); 601 602 if (FormsetStorage->VarStoreId == VarStoreId) { 603 Found = TRUE; 604 break; 605 } 606 607 Link = GetNextNode (&FormSet->StorageListHead, Link); 608 } 609 610 return Found ? FormsetStorage : NULL; 611 } 612 613 /** 614 Get Formset_storage base on the input browser storage. 615 616 More than one formsets may share the same browser storage, 617 this function just get the first formset storage which 618 share the browser storage. 619 620 @param Storage browser storage info. 621 622 @return Pointer to a FORMSET_STORAGE data structure. 623 624 625 **/ 626 FORMSET_STORAGE * 627 GetFstStgFromBrsStg ( 628 IN BROWSER_STORAGE *Storage 629 ) 630 { 631 FORMSET_STORAGE *FormsetStorage; 632 LIST_ENTRY *Link; 633 LIST_ENTRY *FormsetLink; 634 FORM_BROWSER_FORMSET *FormSet; 635 BOOLEAN Found; 636 637 Found = FALSE; 638 FormsetStorage = NULL; 639 640 FormsetLink = GetFirstNode (&gBrowserFormSetList); 641 while (!IsNull (&gBrowserFormSetList, FormsetLink)) { 642 FormSet = FORM_BROWSER_FORMSET_FROM_LINK (FormsetLink); 643 FormsetLink = GetNextNode (&gBrowserFormSetList, FormsetLink); 644 645 Link = GetFirstNode (&FormSet->StorageListHead); 646 while (!IsNull (&FormSet->StorageListHead, Link)) { 647 FormsetStorage = FORMSET_STORAGE_FROM_LINK (Link); 648 Link = GetNextNode (&FormSet->StorageListHead, Link); 649 650 if (FormsetStorage->BrowserStorage == Storage) { 651 Found = TRUE; 652 break; 653 } 654 } 655 656 if (Found) { 657 break; 658 } 659 } 660 661 return Found ? FormsetStorage : NULL; 662 } 663 664 /** 665 Initialize Request Element of a Question. <RequestElement> ::= '&'<BlockName> | '&'<Label> 666 667 @param FormSet Pointer of the current FormSet. 668 @param Question The Question to be initialized. 669 @param Form Pointer of the current form. 670 671 @retval EFI_SUCCESS Function success. 672 @retval EFI_INVALID_PARAMETER No storage associated with the Question. 673 674 **/ 675 EFI_STATUS 676 InitializeRequestElement ( 677 IN OUT FORM_BROWSER_FORMSET *FormSet, 678 IN OUT FORM_BROWSER_STATEMENT *Question, 679 IN OUT FORM_BROWSER_FORM *Form 680 ) 681 { 682 BROWSER_STORAGE *Storage; 683 FORMSET_STORAGE *FormsetStorage; 684 UINTN StrLen; 685 UINTN StringSize; 686 CHAR16 *NewStr; 687 CHAR16 RequestElement[30]; 688 LIST_ENTRY *Link; 689 BOOLEAN Find; 690 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo; 691 UINTN MaxLen; 692 693 Storage = Question->Storage; 694 if (Storage == NULL) { 695 return EFI_INVALID_PARAMETER; 696 } 697 698 if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) { 699 // 700 // <ConfigRequest> is unnecessary for EFI variable storage, 701 // GetVariable()/SetVariable() will be used to retrieve/save values 702 // 703 return EFI_SUCCESS; 704 } 705 706 // 707 // Prepare <RequestElement> 708 // 709 if (Storage->Type == EFI_HII_VARSTORE_BUFFER || 710 Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) { 711 StrLen = UnicodeSPrint ( 712 RequestElement, 713 30 * sizeof (CHAR16), 714 L"&OFFSET=%04x&WIDTH=%04x", 715 Question->VarStoreInfo.VarOffset, 716 Question->StorageWidth 717 ); 718 HiiToLower(RequestElement); 719 Question->BlockName = AllocateCopyPool ((StrLen + 1) * sizeof (CHAR16), RequestElement); 720 } else { 721 StrLen = UnicodeSPrint (RequestElement, 30 * sizeof (CHAR16), L"&%s", Question->VariableName); 722 } 723 724 if ((Question->Operand == EFI_IFR_PASSWORD_OP) && ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) == EFI_IFR_FLAG_CALLBACK)) { 725 // 726 // Password with CALLBACK flag is stored in encoded format, 727 // so don't need to append it to <ConfigRequest> 728 // 729 return EFI_SUCCESS; 730 } 731 732 // 733 // Find Formset Storage for this Question 734 // 735 FormsetStorage = GetFstStgFromVarId(FormSet, Question->VarStoreId); 736 ASSERT (FormsetStorage != NULL); 737 StringSize = (FormsetStorage->ConfigRequest != NULL) ? StrSize (FormsetStorage->ConfigRequest) : sizeof (CHAR16); 738 MaxLen = StringSize / sizeof (CHAR16) + FormsetStorage->SpareStrLen; 739 740 // 741 // Append <RequestElement> to <ConfigRequest> 742 // 743 if (StrLen > FormsetStorage->SpareStrLen) { 744 // 745 // Old String buffer is not sufficient for RequestElement, allocate a new one 746 // 747 MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL; 748 NewStr = AllocateZeroPool (MaxLen * sizeof (CHAR16)); 749 ASSERT (NewStr != NULL); 750 if (FormsetStorage->ConfigRequest != NULL) { 751 CopyMem (NewStr, FormsetStorage->ConfigRequest, StringSize); 752 FreePool (FormsetStorage->ConfigRequest); 753 } 754 FormsetStorage->ConfigRequest = NewStr; 755 FormsetStorage->SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL; 756 } 757 758 StrCatS (FormsetStorage->ConfigRequest, MaxLen, RequestElement); 759 FormsetStorage->ElementCount++; 760 FormsetStorage->SpareStrLen -= StrLen; 761 762 // 763 // Update the Config Request info saved in the form. 764 // 765 ConfigInfo = NULL; 766 Find = FALSE; 767 Link = GetFirstNode (&Form->ConfigRequestHead); 768 while (!IsNull (&Form->ConfigRequestHead, Link)) { 769 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link); 770 771 if (ConfigInfo != NULL && ConfigInfo->Storage == FormsetStorage->BrowserStorage) { 772 Find = TRUE; 773 break; 774 } 775 776 Link = GetNextNode (&Form->ConfigRequestHead, Link); 777 } 778 779 if (!Find) { 780 ConfigInfo = AllocateZeroPool(sizeof (FORM_BROWSER_CONFIG_REQUEST)); 781 ASSERT (ConfigInfo != NULL); 782 ConfigInfo->Signature = FORM_BROWSER_CONFIG_REQUEST_SIGNATURE; 783 ConfigInfo->ConfigRequest = AllocateCopyPool (StrSize (FormsetStorage->ConfigHdr), FormsetStorage->ConfigHdr); 784 ASSERT (ConfigInfo->ConfigRequest != NULL); 785 ConfigInfo->SpareStrLen = 0; 786 ConfigInfo->Storage = FormsetStorage->BrowserStorage; 787 InsertTailList(&Form->ConfigRequestHead, &ConfigInfo->Link); 788 } 789 StringSize = (ConfigInfo->ConfigRequest != NULL) ? StrSize (ConfigInfo->ConfigRequest) : sizeof (CHAR16); 790 MaxLen = StringSize / sizeof (CHAR16) + ConfigInfo->SpareStrLen; 791 792 // 793 // Append <RequestElement> to <ConfigRequest> 794 // 795 if (StrLen > ConfigInfo->SpareStrLen) { 796 // 797 // Old String buffer is not sufficient for RequestElement, allocate a new one 798 // 799 MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL; 800 NewStr = AllocateZeroPool (MaxLen * sizeof (CHAR16)); 801 ASSERT (NewStr != NULL); 802 if (ConfigInfo->ConfigRequest != NULL) { 803 CopyMem (NewStr, ConfigInfo->ConfigRequest, StringSize); 804 FreePool (ConfigInfo->ConfigRequest); 805 } 806 ConfigInfo->ConfigRequest = NewStr; 807 ConfigInfo->SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL; 808 } 809 810 StrCatS (ConfigInfo->ConfigRequest, MaxLen, RequestElement); 811 ConfigInfo->ElementCount++; 812 ConfigInfo->SpareStrLen -= StrLen; 813 return EFI_SUCCESS; 814 } 815 816 817 /** 818 Free resources of a Expression. 819 820 @param FormSet Pointer of the Expression 821 822 **/ 823 VOID 824 DestroyExpression ( 825 IN FORM_EXPRESSION *Expression 826 ) 827 { 828 LIST_ENTRY *Link; 829 EXPRESSION_OPCODE *OpCode; 830 LIST_ENTRY *SubExpressionLink; 831 FORM_EXPRESSION *SubExpression; 832 833 while (!IsListEmpty (&Expression->OpCodeListHead)) { 834 Link = GetFirstNode (&Expression->OpCodeListHead); 835 OpCode = EXPRESSION_OPCODE_FROM_LINK (Link); 836 RemoveEntryList (&OpCode->Link); 837 838 if (OpCode->ValueList != NULL) { 839 FreePool (OpCode->ValueList); 840 } 841 842 if (OpCode->ValueName != NULL) { 843 FreePool (OpCode->ValueName); 844 } 845 846 if (OpCode->MapExpressionList.ForwardLink != NULL) { 847 while (!IsListEmpty (&OpCode->MapExpressionList)) { 848 SubExpressionLink = GetFirstNode(&OpCode->MapExpressionList); 849 SubExpression = FORM_EXPRESSION_FROM_LINK (SubExpressionLink); 850 RemoveEntryList(&SubExpression->Link); 851 DestroyExpression (SubExpression); 852 } 853 } 854 } 855 856 // 857 // Free this Expression 858 // 859 FreePool (Expression); 860 } 861 862 /** 863 Free resources of a storage. 864 865 @param Storage Pointer of the storage 866 867 **/ 868 VOID 869 DestroyStorage ( 870 IN FORMSET_STORAGE *Storage 871 ) 872 { 873 if (Storage == NULL) { 874 return; 875 } 876 877 if (Storage->ConfigRequest != NULL) { 878 FreePool (Storage->ConfigRequest); 879 } 880 881 FreePool (Storage); 882 } 883 884 885 /** 886 Free resources of a Statement. 887 888 @param FormSet Pointer of the FormSet 889 @param Statement Pointer of the Statement 890 891 **/ 892 VOID 893 DestroyStatement ( 894 IN FORM_BROWSER_FORMSET *FormSet, 895 IN OUT FORM_BROWSER_STATEMENT *Statement 896 ) 897 { 898 LIST_ENTRY *Link; 899 QUESTION_DEFAULT *Default; 900 QUESTION_OPTION *Option; 901 FORM_EXPRESSION *Expression; 902 903 // 904 // Free Default value List 905 // 906 while (!IsListEmpty (&Statement->DefaultListHead)) { 907 Link = GetFirstNode (&Statement->DefaultListHead); 908 Default = QUESTION_DEFAULT_FROM_LINK (Link); 909 RemoveEntryList (&Default->Link); 910 911 if (Default->Value.Buffer != NULL) { 912 FreePool (Default->Value.Buffer); 913 } 914 FreePool (Default); 915 } 916 917 // 918 // Free Options List 919 // 920 while (!IsListEmpty (&Statement->OptionListHead)) { 921 Link = GetFirstNode (&Statement->OptionListHead); 922 Option = QUESTION_OPTION_FROM_LINK (Link); 923 if (Option->SuppressExpression != NULL) { 924 FreePool (Option->SuppressExpression); 925 } 926 RemoveEntryList (&Option->Link); 927 928 FreePool (Option); 929 } 930 931 // 932 // Free Inconsistent List 933 // 934 while (!IsListEmpty (&Statement->InconsistentListHead)) { 935 Link = GetFirstNode (&Statement->InconsistentListHead); 936 Expression = FORM_EXPRESSION_FROM_LINK (Link); 937 RemoveEntryList (&Expression->Link); 938 939 DestroyExpression (Expression); 940 } 941 942 // 943 // Free NoSubmit List 944 // 945 while (!IsListEmpty (&Statement->NoSubmitListHead)) { 946 Link = GetFirstNode (&Statement->NoSubmitListHead); 947 Expression = FORM_EXPRESSION_FROM_LINK (Link); 948 RemoveEntryList (&Expression->Link); 949 950 DestroyExpression (Expression); 951 } 952 953 // 954 // Free WarningIf List 955 // 956 while (!IsListEmpty (&Statement->WarningListHead)) { 957 Link = GetFirstNode (&Statement->WarningListHead); 958 Expression = FORM_EXPRESSION_FROM_LINK (Link); 959 RemoveEntryList (&Expression->Link); 960 961 DestroyExpression (Expression); 962 } 963 964 if (Statement->Expression != NULL) { 965 FreePool (Statement->Expression); 966 } 967 968 if (Statement->VariableName != NULL) { 969 FreePool (Statement->VariableName); 970 } 971 if (Statement->BlockName != NULL) { 972 FreePool (Statement->BlockName); 973 } 974 if (Statement->BufferValue != NULL) { 975 FreePool (Statement->BufferValue); 976 } 977 if (Statement->Operand == EFI_IFR_STRING_OP || Statement->Operand == EFI_IFR_PASSWORD_OP) { 978 DeleteString(Statement->HiiValue.Value.string, FormSet->HiiHandle); 979 } 980 } 981 982 983 /** 984 Free resources of a Form. 985 986 @param FormSet Pointer of the FormSet 987 @param Form Pointer of the Form. 988 989 **/ 990 VOID 991 DestroyForm ( 992 IN FORM_BROWSER_FORMSET *FormSet, 993 IN OUT FORM_BROWSER_FORM *Form 994 ) 995 { 996 LIST_ENTRY *Link; 997 FORM_EXPRESSION *Expression; 998 FORM_BROWSER_STATEMENT *Statement; 999 FORM_BROWSER_CONFIG_REQUEST *ConfigInfo; 1000 1001 // 1002 // Free Form Expressions 1003 // 1004 while (!IsListEmpty (&Form->ExpressionListHead)) { 1005 Link = GetFirstNode (&Form->ExpressionListHead); 1006 Expression = FORM_EXPRESSION_FROM_LINK (Link); 1007 RemoveEntryList (&Expression->Link); 1008 1009 DestroyExpression (Expression); 1010 } 1011 1012 // 1013 // Free Statements/Questions 1014 // 1015 while (!IsListEmpty (&Form->StatementListHead)) { 1016 Link = GetFirstNode (&Form->StatementListHead); 1017 Statement = FORM_BROWSER_STATEMENT_FROM_LINK (Link); 1018 RemoveEntryList (&Statement->Link); 1019 1020 DestroyStatement (FormSet, Statement); 1021 } 1022 1023 // 1024 // Free ConfigRequest string. 1025 // 1026 while (!IsListEmpty (&Form->ConfigRequestHead)) { 1027 Link = GetFirstNode (&Form->ConfigRequestHead); 1028 ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link); 1029 RemoveEntryList (&ConfigInfo->Link); 1030 1031 FreePool (ConfigInfo->ConfigRequest); 1032 FreePool (ConfigInfo); 1033 } 1034 1035 if (Form->SuppressExpression != NULL) { 1036 FreePool (Form->SuppressExpression); 1037 } 1038 1039 UiFreeMenuList (&Form->FormViewListHead); 1040 1041 // 1042 // Free this Form 1043 // 1044 FreePool (Form); 1045 } 1046 1047 1048 /** 1049 Free resources allocated for a FormSet. 1050 1051 @param FormSet Pointer of the FormSet 1052 1053 **/ 1054 VOID 1055 DestroyFormSet ( 1056 IN OUT FORM_BROWSER_FORMSET *FormSet 1057 ) 1058 { 1059 LIST_ENTRY *Link; 1060 FORMSET_STORAGE *Storage; 1061 FORMSET_DEFAULTSTORE *DefaultStore; 1062 FORM_EXPRESSION *Expression; 1063 FORM_BROWSER_FORM *Form; 1064 1065 if (FormSet->IfrBinaryData == NULL) { 1066 // 1067 // Uninitialized FormSet 1068 // 1069 FreePool (FormSet); 1070 return; 1071 } 1072 1073 // 1074 // Free IFR binary buffer 1075 // 1076 FreePool (FormSet->IfrBinaryData); 1077 1078 // 1079 // Free FormSet Storage 1080 // 1081 if (FormSet->StorageListHead.ForwardLink != NULL) { 1082 while (!IsListEmpty (&FormSet->StorageListHead)) { 1083 Link = GetFirstNode (&FormSet->StorageListHead); 1084 Storage = FORMSET_STORAGE_FROM_LINK (Link); 1085 RemoveEntryList (&Storage->Link); 1086 1087 DestroyStorage (Storage); 1088 } 1089 } 1090 1091 // 1092 // Free FormSet Default Store 1093 // 1094 if (FormSet->DefaultStoreListHead.ForwardLink != NULL) { 1095 while (!IsListEmpty (&FormSet->DefaultStoreListHead)) { 1096 Link = GetFirstNode (&FormSet->DefaultStoreListHead); 1097 DefaultStore = FORMSET_DEFAULTSTORE_FROM_LINK (Link); 1098 RemoveEntryList (&DefaultStore->Link); 1099 1100 FreePool (DefaultStore); 1101 } 1102 } 1103 1104 // 1105 // Free Formset Expressions 1106 // 1107 while (!IsListEmpty (&FormSet->ExpressionListHead)) { 1108 Link = GetFirstNode (&FormSet->ExpressionListHead); 1109 Expression = FORM_EXPRESSION_FROM_LINK (Link); 1110 RemoveEntryList (&Expression->Link); 1111 1112 DestroyExpression (Expression); 1113 } 1114 1115 // 1116 // Free Forms 1117 // 1118 if (FormSet->FormListHead.ForwardLink != NULL) { 1119 while (!IsListEmpty (&FormSet->FormListHead)) { 1120 Link = GetFirstNode (&FormSet->FormListHead); 1121 Form = FORM_BROWSER_FORM_FROM_LINK (Link); 1122 RemoveEntryList (&Form->Link); 1123 1124 DestroyForm (FormSet, Form); 1125 } 1126 } 1127 1128 if (FormSet->StatementBuffer != NULL) { 1129 FreePool (FormSet->StatementBuffer); 1130 } 1131 if (FormSet->ExpressionBuffer != NULL) { 1132 FreePool (FormSet->ExpressionBuffer); 1133 } 1134 1135 FreePool (FormSet); 1136 } 1137 1138 1139 /** 1140 Tell whether this Operand is an Expression OpCode or not 1141 1142 @param Operand Operand of an IFR OpCode. 1143 1144 @retval TRUE This is an Expression OpCode. 1145 @retval FALSE Not an Expression OpCode. 1146 1147 **/ 1148 BOOLEAN 1149 IsExpressionOpCode ( 1150 IN UINT8 Operand 1151 ) 1152 { 1153 if (((Operand >= EFI_IFR_EQ_ID_VAL_OP) && (Operand <= EFI_IFR_NOT_OP)) || 1154 ((Operand >= EFI_IFR_MATCH_OP) && (Operand <= EFI_IFR_SET_OP)) || 1155 ((Operand >= EFI_IFR_EQUAL_OP) && (Operand <= EFI_IFR_SPAN_OP)) || 1156 (Operand == EFI_IFR_CATENATE_OP) || 1157 (Operand == EFI_IFR_TO_LOWER_OP) || 1158 (Operand == EFI_IFR_TO_UPPER_OP) || 1159 (Operand == EFI_IFR_MAP_OP) || 1160 (Operand == EFI_IFR_VERSION_OP) || 1161 (Operand == EFI_IFR_SECURITY_OP) || 1162 (Operand == EFI_IFR_MATCH2_OP)) { 1163 return TRUE; 1164 } else { 1165 return FALSE; 1166 } 1167 } 1168 1169 /** 1170 Tell whether this Operand is an Statement OpCode. 1171 1172 @param Operand Operand of an IFR OpCode. 1173 1174 @retval TRUE This is an Statement OpCode. 1175 @retval FALSE Not an Statement OpCode. 1176 1177 **/ 1178 BOOLEAN 1179 IsStatementOpCode ( 1180 IN UINT8 Operand 1181 ) 1182 { 1183 if ((Operand == EFI_IFR_SUBTITLE_OP) || 1184 (Operand == EFI_IFR_TEXT_OP) || 1185 (Operand == EFI_IFR_RESET_BUTTON_OP) || 1186 (Operand == EFI_IFR_REF_OP) || 1187 (Operand == EFI_IFR_ACTION_OP) || 1188 (Operand == EFI_IFR_NUMERIC_OP) || 1189 (Operand == EFI_IFR_ORDERED_LIST_OP) || 1190 (Operand == EFI_IFR_CHECKBOX_OP) || 1191 (Operand == EFI_IFR_STRING_OP) || 1192 (Operand == EFI_IFR_PASSWORD_OP) || 1193 (Operand == EFI_IFR_DATE_OP) || 1194 (Operand == EFI_IFR_TIME_OP) || 1195 (Operand == EFI_IFR_GUID_OP) || 1196 (Operand == EFI_IFR_ONE_OF_OP)) { 1197 return TRUE; 1198 } else { 1199 return FALSE; 1200 } 1201 } 1202 1203 /** 1204 Tell whether this Operand is an known OpCode. 1205 1206 @param Operand Operand of an IFR OpCode. 1207 1208 @retval TRUE This is an Statement OpCode. 1209 @retval FALSE Not an Statement OpCode. 1210 1211 **/ 1212 BOOLEAN 1213 IsUnKnownOpCode ( 1214 IN UINT8 Operand 1215 ) 1216 { 1217 return Operand > EFI_IFR_MATCH2_OP ? TRUE : FALSE; 1218 } 1219 1220 /** 1221 Calculate number of Statemens(Questions) and Expression OpCodes. 1222 1223 @param FormSet The FormSet to be counted. 1224 @param NumberOfStatement Number of Statemens(Questions) 1225 @param NumberOfExpression Number of Expression OpCodes 1226 1227 **/ 1228 VOID 1229 CountOpCodes ( 1230 IN FORM_BROWSER_FORMSET *FormSet, 1231 IN OUT UINT16 *NumberOfStatement, 1232 IN OUT UINT16 *NumberOfExpression 1233 ) 1234 { 1235 UINT16 StatementCount; 1236 UINT16 ExpressionCount; 1237 UINT8 *OpCodeData; 1238 UINTN Offset; 1239 UINTN OpCodeLen; 1240 1241 Offset = 0; 1242 StatementCount = 0; 1243 ExpressionCount = 0; 1244 1245 while (Offset < FormSet->IfrBinaryLength) { 1246 OpCodeData = FormSet->IfrBinaryData + Offset; 1247 OpCodeLen = ((EFI_IFR_OP_HEADER *) OpCodeData)->Length; 1248 Offset += OpCodeLen; 1249 1250 if (IsExpressionOpCode (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode)) { 1251 ExpressionCount++; 1252 } else { 1253 StatementCount++; 1254 } 1255 } 1256 1257 *NumberOfStatement = StatementCount; 1258 *NumberOfExpression = ExpressionCount; 1259 } 1260 1261 1262 1263 /** 1264 Parse opcodes in the formset IFR binary. 1265 1266 @param FormSet Pointer of the FormSet data structure. 1267 1268 @retval EFI_SUCCESS Opcode parse success. 1269 @retval Other Opcode parse fail. 1270 1271 **/ 1272 EFI_STATUS 1273 ParseOpCodes ( 1274 IN FORM_BROWSER_FORMSET *FormSet 1275 ) 1276 { 1277 EFI_STATUS Status; 1278 FORM_BROWSER_FORM *CurrentForm; 1279 FORM_BROWSER_STATEMENT *CurrentStatement; 1280 FORM_BROWSER_STATEMENT *ParentStatement; 1281 EXPRESSION_OPCODE *ExpressionOpCode; 1282 FORM_EXPRESSION *CurrentExpression; 1283 UINT8 Operand; 1284 UINT8 Scope; 1285 UINTN OpCodeOffset; 1286 UINTN OpCodeLength; 1287 UINT8 *OpCodeData; 1288 UINT8 ScopeOpCode; 1289 FORMSET_STORAGE *Storage; 1290 FORMSET_DEFAULTSTORE *DefaultStore; 1291 QUESTION_DEFAULT *CurrentDefault; 1292 QUESTION_OPTION *CurrentOption; 1293 UINT8 Width; 1294 UINT16 NumberOfStatement; 1295 UINT16 NumberOfExpression; 1296 EFI_IMAGE_ID *ImageId; 1297 BOOLEAN SuppressForQuestion; 1298 BOOLEAN SuppressForOption; 1299 UINT16 DepthOfDisable; 1300 BOOLEAN OpCodeDisabled; 1301 BOOLEAN SingleOpCodeExpression; 1302 BOOLEAN InScopeDefault; 1303 EFI_HII_VALUE *Value; 1304 EFI_IFR_FORM_MAP_METHOD *MapMethod; 1305 UINT8 MapScopeDepth; 1306 LIST_ENTRY *Link; 1307 FORMSET_STORAGE *VarStorage; 1308 LIST_ENTRY *MapExpressionList; 1309 EFI_VARSTORE_ID TempVarstoreId; 1310 BOOLEAN InScopeDisable; 1311 INTN ConditionalExprCount; 1312 BOOLEAN InUnknownScope; 1313 UINT8 UnknownDepth; 1314 FORMSET_DEFAULTSTORE *PreDefaultStore; 1315 LIST_ENTRY *DefaultLink; 1316 BOOLEAN HaveInserted; 1317 1318 SuppressForQuestion = FALSE; 1319 SuppressForOption = FALSE; 1320 InScopeDisable = FALSE; 1321 DepthOfDisable = 0; 1322 OpCodeDisabled = FALSE; 1323 SingleOpCodeExpression = FALSE; 1324 InScopeDefault = FALSE; 1325 CurrentExpression = NULL; 1326 CurrentDefault = NULL; 1327 CurrentOption = NULL; 1328 ImageId = NULL; 1329 MapMethod = NULL; 1330 MapScopeDepth = 0; 1331 Link = NULL; 1332 VarStorage = NULL; 1333 MapExpressionList = NULL; 1334 TempVarstoreId = 0; 1335 ConditionalExprCount = 0; 1336 InUnknownScope = FALSE; 1337 UnknownDepth = 0; 1338 1339 // 1340 // Get the number of Statements and Expressions 1341 // 1342 CountOpCodes (FormSet, &NumberOfStatement, &NumberOfExpression); 1343 1344 mStatementIndex = 0; 1345 mUsedQuestionId = 1; 1346 FormSet->StatementBuffer = AllocateZeroPool (NumberOfStatement * sizeof (FORM_BROWSER_STATEMENT)); 1347 if (FormSet->StatementBuffer == NULL) { 1348 return EFI_OUT_OF_RESOURCES; 1349 } 1350 1351 mExpressionOpCodeIndex = 0; 1352 FormSet->ExpressionBuffer = AllocateZeroPool (NumberOfExpression * sizeof (EXPRESSION_OPCODE)); 1353 if (FormSet->ExpressionBuffer == NULL) { 1354 return EFI_OUT_OF_RESOURCES; 1355 } 1356 1357 InitializeListHead (&FormSet->StatementListOSF); 1358 InitializeListHead (&FormSet->StorageListHead); 1359 InitializeListHead (&FormSet->SaveFailStorageListHead); 1360 InitializeListHead (&FormSet->DefaultStoreListHead); 1361 InitializeListHead (&FormSet->FormListHead); 1362 InitializeListHead (&FormSet->ExpressionListHead); 1363 ResetCurrentExpressionStack (); 1364 ResetMapExpressionListStack (); 1365 1366 CurrentForm = NULL; 1367 CurrentStatement = NULL; 1368 ParentStatement = NULL; 1369 1370 ResetScopeStack (); 1371 1372 OpCodeOffset = 0; 1373 while (OpCodeOffset < FormSet->IfrBinaryLength) { 1374 OpCodeData = FormSet->IfrBinaryData + OpCodeOffset; 1375 1376 OpCodeLength = ((EFI_IFR_OP_HEADER *) OpCodeData)->Length; 1377 OpCodeOffset += OpCodeLength; 1378 Operand = ((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode; 1379 Scope = ((EFI_IFR_OP_HEADER *) OpCodeData)->Scope; 1380 1381 if (InUnknownScope) { 1382 if (Operand == EFI_IFR_END_OP) { 1383 UnknownDepth --; 1384 1385 if (UnknownDepth == 0) { 1386 InUnknownScope = FALSE; 1387 } 1388 } else { 1389 if (Scope != 0) { 1390 UnknownDepth ++; 1391 } 1392 } 1393 1394 continue; 1395 } 1396 1397 if (IsUnKnownOpCode(Operand)) { 1398 if (Scope != 0) { 1399 InUnknownScope = TRUE; 1400 UnknownDepth ++; 1401 } 1402 1403 continue; 1404 } 1405 1406 // 1407 // If scope bit set, push onto scope stack 1408 // 1409 if (Scope != 0) { 1410 PushScope (Operand); 1411 } 1412 1413 if (OpCodeDisabled) { 1414 // 1415 // DisableIf Expression is evaluated to be TRUE, try to find its end. 1416 // Here only cares the EFI_IFR_DISABLE_IF and EFI_IFR_END 1417 // 1418 if (Operand == EFI_IFR_DISABLE_IF_OP) { 1419 DepthOfDisable++; 1420 } else if (Operand == EFI_IFR_END_OP) { 1421 Status = PopScope (&ScopeOpCode); 1422 if (EFI_ERROR (Status)) { 1423 return Status; 1424 } 1425 1426 if (ScopeOpCode == EFI_IFR_DISABLE_IF_OP) { 1427 if (DepthOfDisable == 0) { 1428 InScopeDisable = FALSE; 1429 OpCodeDisabled = FALSE; 1430 } else { 1431 DepthOfDisable--; 1432 } 1433 } 1434 } 1435 continue; 1436 } 1437 1438 if (IsExpressionOpCode (Operand)) { 1439 ExpressionOpCode = &FormSet->ExpressionBuffer[mExpressionOpCodeIndex]; 1440 mExpressionOpCodeIndex++; 1441 1442 ExpressionOpCode->Signature = EXPRESSION_OPCODE_SIGNATURE; 1443 ExpressionOpCode->Operand = Operand; 1444 Value = &ExpressionOpCode->Value; 1445 1446 switch (Operand) { 1447 case EFI_IFR_EQ_ID_VAL_OP: 1448 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID)); 1449 1450 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16; 1451 CopyMem (&Value->Value.u16, &((EFI_IFR_EQ_ID_VAL *) OpCodeData)->Value, sizeof (UINT16)); 1452 break; 1453 1454 case EFI_IFR_EQ_ID_ID_OP: 1455 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_ID *) OpCodeData)->QuestionId1, sizeof (EFI_QUESTION_ID)); 1456 CopyMem (&ExpressionOpCode->QuestionId2, &((EFI_IFR_EQ_ID_ID *) OpCodeData)->QuestionId2, sizeof (EFI_QUESTION_ID)); 1457 break; 1458 1459 case EFI_IFR_EQ_ID_VAL_LIST_OP: 1460 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID)); 1461 CopyMem (&ExpressionOpCode->ListLength, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->ListLength, sizeof (UINT16)); 1462 ExpressionOpCode->ValueList = AllocateCopyPool (ExpressionOpCode->ListLength * sizeof (UINT16), &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->ValueList); 1463 break; 1464 1465 case EFI_IFR_TO_STRING_OP: 1466 case EFI_IFR_FIND_OP: 1467 ExpressionOpCode->Format = (( EFI_IFR_TO_STRING *) OpCodeData)->Format; 1468 break; 1469 1470 case EFI_IFR_STRING_REF1_OP: 1471 Value->Type = EFI_IFR_TYPE_STRING; 1472 CopyMem (&Value->Value.string, &(( EFI_IFR_STRING_REF1 *) OpCodeData)->StringId, sizeof (EFI_STRING_ID)); 1473 break; 1474 1475 case EFI_IFR_RULE_REF_OP: 1476 ExpressionOpCode->RuleId = (( EFI_IFR_RULE_REF *) OpCodeData)->RuleId; 1477 break; 1478 1479 case EFI_IFR_SPAN_OP: 1480 ExpressionOpCode->Flags = (( EFI_IFR_SPAN *) OpCodeData)->Flags; 1481 break; 1482 1483 case EFI_IFR_THIS_OP: 1484 ASSERT (ParentStatement != NULL); 1485 ExpressionOpCode->QuestionId = ParentStatement->QuestionId; 1486 break; 1487 1488 case EFI_IFR_SECURITY_OP: 1489 CopyMem (&ExpressionOpCode->Guid, &((EFI_IFR_SECURITY *) OpCodeData)->Permissions, sizeof (EFI_GUID)); 1490 break; 1491 1492 case EFI_IFR_MATCH2_OP: 1493 CopyMem (&ExpressionOpCode->Guid, &((EFI_IFR_MATCH2 *) OpCodeData)->SyntaxType, sizeof (EFI_GUID)); 1494 break; 1495 1496 case EFI_IFR_GET_OP: 1497 case EFI_IFR_SET_OP: 1498 CopyMem (&TempVarstoreId, &((EFI_IFR_GET *) OpCodeData)->VarStoreId, sizeof (TempVarstoreId)); 1499 if (TempVarstoreId != 0) { 1500 if (FormSet->StorageListHead.ForwardLink != NULL) { 1501 Link = GetFirstNode (&FormSet->StorageListHead); 1502 while (!IsNull (&FormSet->StorageListHead, Link)) { 1503 VarStorage = FORMSET_STORAGE_FROM_LINK (Link); 1504 if (VarStorage->VarStoreId == ((EFI_IFR_GET *) OpCodeData)->VarStoreId) { 1505 ExpressionOpCode->VarStorage = VarStorage->BrowserStorage; 1506 break; 1507 } 1508 Link = GetNextNode (&FormSet->StorageListHead, Link); 1509 } 1510 } 1511 if (ExpressionOpCode->VarStorage == NULL) { 1512 // 1513 // VarStorage is not found. 1514 // 1515 return EFI_INVALID_PARAMETER; 1516 } 1517 } 1518 ExpressionOpCode->ValueType = ((EFI_IFR_GET *) OpCodeData)->VarStoreType; 1519 switch (ExpressionOpCode->ValueType) { 1520 case EFI_IFR_TYPE_BOOLEAN: 1521 case EFI_IFR_TYPE_NUM_SIZE_8: 1522 ExpressionOpCode->ValueWidth = 1; 1523 break; 1524 1525 case EFI_IFR_TYPE_NUM_SIZE_16: 1526 case EFI_IFR_TYPE_STRING: 1527 ExpressionOpCode->ValueWidth = 2; 1528 break; 1529 1530 case EFI_IFR_TYPE_NUM_SIZE_32: 1531 ExpressionOpCode->ValueWidth = 4; 1532 break; 1533 1534 case EFI_IFR_TYPE_NUM_SIZE_64: 1535 ExpressionOpCode->ValueWidth = 8; 1536 break; 1537 1538 case EFI_IFR_TYPE_DATE: 1539 ExpressionOpCode->ValueWidth = (UINT8) sizeof (EFI_IFR_DATE); 1540 break; 1541 1542 case EFI_IFR_TYPE_TIME: 1543 ExpressionOpCode->ValueWidth = (UINT8) sizeof (EFI_IFR_TIME); 1544 break; 1545 1546 case EFI_IFR_TYPE_REF: 1547 ExpressionOpCode->ValueWidth = (UINT8) sizeof (EFI_IFR_REF); 1548 break; 1549 1550 case EFI_IFR_TYPE_OTHER: 1551 case EFI_IFR_TYPE_UNDEFINED: 1552 case EFI_IFR_TYPE_ACTION: 1553 case EFI_IFR_TYPE_BUFFER: 1554 default: 1555 // 1556 // Invalid value type for Get/Set opcode. 1557 // 1558 return EFI_INVALID_PARAMETER; 1559 } 1560 CopyMem (&ExpressionOpCode->VarStoreInfo.VarName, &((EFI_IFR_GET *) OpCodeData)->VarStoreInfo.VarName, sizeof (EFI_STRING_ID)); 1561 CopyMem (&ExpressionOpCode->VarStoreInfo.VarOffset, &((EFI_IFR_GET *) OpCodeData)->VarStoreInfo.VarOffset, sizeof (UINT16)); 1562 if ((ExpressionOpCode->VarStorage != NULL) && 1563 (ExpressionOpCode->VarStorage->Type == EFI_HII_VARSTORE_NAME_VALUE || 1564 ExpressionOpCode->VarStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) { 1565 ExpressionOpCode->ValueName = GetToken (ExpressionOpCode->VarStoreInfo.VarName, FormSet->HiiHandle); 1566 if (ExpressionOpCode->ValueName == NULL) { 1567 // 1568 // String ID is invalid. 1569 // 1570 return EFI_INVALID_PARAMETER; 1571 } 1572 } 1573 break; 1574 1575 case EFI_IFR_QUESTION_REF1_OP: 1576 CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID)); 1577 break; 1578 1579 case EFI_IFR_QUESTION_REF3_OP: 1580 if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_2)) { 1581 CopyMem (&ExpressionOpCode->DevicePath, &(( EFI_IFR_QUESTION_REF3_2 *) OpCodeData)->DevicePath, sizeof (EFI_STRING_ID)); 1582 1583 if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_3)) { 1584 CopyMem (&ExpressionOpCode->Guid, &(( EFI_IFR_QUESTION_REF3_3 *) OpCodeData)->Guid, sizeof (EFI_GUID)); 1585 } 1586 } 1587 break; 1588 1589 // 1590 // constant 1591 // 1592 case EFI_IFR_TRUE_OP: 1593 Value->Type = EFI_IFR_TYPE_BOOLEAN; 1594 Value->Value.b = TRUE; 1595 break; 1596 1597 case EFI_IFR_FALSE_OP: 1598 Value->Type = EFI_IFR_TYPE_BOOLEAN; 1599 Value->Value.b = FALSE; 1600 break; 1601 1602 case EFI_IFR_ONE_OP: 1603 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8; 1604 Value->Value.u8 = 1; 1605 break; 1606 1607 case EFI_IFR_ZERO_OP: 1608 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8; 1609 Value->Value.u8 = 0; 1610 break; 1611 1612 case EFI_IFR_ONES_OP: 1613 Value->Type = EFI_IFR_TYPE_NUM_SIZE_64; 1614 Value->Value.u64 = 0xffffffffffffffffULL; 1615 break; 1616 1617 case EFI_IFR_UINT8_OP: 1618 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8; 1619 Value->Value.u8 = (( EFI_IFR_UINT8 *) OpCodeData)->Value; 1620 break; 1621 1622 case EFI_IFR_UINT16_OP: 1623 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16; 1624 CopyMem (&Value->Value.u16, &(( EFI_IFR_UINT16 *) OpCodeData)->Value, sizeof (UINT16)); 1625 break; 1626 1627 case EFI_IFR_UINT32_OP: 1628 Value->Type = EFI_IFR_TYPE_NUM_SIZE_32; 1629 CopyMem (&Value->Value.u32, &(( EFI_IFR_UINT32 *) OpCodeData)->Value, sizeof (UINT32)); 1630 break; 1631 1632 case EFI_IFR_UINT64_OP: 1633 Value->Type = EFI_IFR_TYPE_NUM_SIZE_64; 1634 CopyMem (&Value->Value.u64, &(( EFI_IFR_UINT64 *) OpCodeData)->Value, sizeof (UINT64)); 1635 break; 1636 1637 case EFI_IFR_UNDEFINED_OP: 1638 Value->Type = EFI_IFR_TYPE_UNDEFINED; 1639 break; 1640 1641 case EFI_IFR_VERSION_OP: 1642 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16; 1643 Value->Value.u16 = EFI_IFR_SPECIFICATION_VERSION; 1644 break; 1645 1646 default: 1647 break; 1648 } 1649 // 1650 // Create sub expression nested in MAP opcode 1651 // 1652 if (CurrentExpression == NULL && MapScopeDepth > 0) { 1653 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 1654 ASSERT (MapExpressionList != NULL); 1655 InsertTailList (MapExpressionList, &CurrentExpression->Link); 1656 if (Scope == 0) { 1657 SingleOpCodeExpression = TRUE; 1658 } 1659 } 1660 ASSERT (CurrentExpression != NULL); 1661 InsertTailList (&CurrentExpression->OpCodeListHead, &ExpressionOpCode->Link); 1662 if (Operand == EFI_IFR_MAP_OP) { 1663 // 1664 // Store current Map Expression List. 1665 // 1666 if (MapExpressionList != NULL) { 1667 PushMapExpressionList (MapExpressionList); 1668 } 1669 // 1670 // Initialize new Map Expression List. 1671 // 1672 MapExpressionList = &ExpressionOpCode->MapExpressionList; 1673 InitializeListHead (MapExpressionList); 1674 // 1675 // Store current expression. 1676 // 1677 PushCurrentExpression (CurrentExpression); 1678 CurrentExpression = NULL; 1679 MapScopeDepth ++; 1680 } else if (SingleOpCodeExpression) { 1681 // 1682 // There are two cases to indicate the end of an Expression: 1683 // for single OpCode expression: one Expression OpCode 1684 // for expression consists of more than one OpCode: EFI_IFR_END 1685 // 1686 SingleOpCodeExpression = FALSE; 1687 1688 if (InScopeDisable && CurrentForm == NULL) { 1689 // 1690 // This is DisableIf expression for Form, it should be a constant expression 1691 // 1692 Status = EvaluateExpression (FormSet, CurrentForm, CurrentExpression); 1693 if (EFI_ERROR (Status)) { 1694 return Status; 1695 } 1696 1697 OpCodeDisabled = IsTrue(&CurrentExpression->Result); 1698 } 1699 1700 CurrentExpression = NULL; 1701 } 1702 1703 continue; 1704 } 1705 1706 // 1707 // Parse the Opcode 1708 // 1709 switch (Operand) { 1710 1711 case EFI_IFR_FORM_SET_OP: 1712 // 1713 // Check the formset GUID 1714 // 1715 if (CompareMem (&FormSet->Guid, &((EFI_IFR_FORM_SET *) OpCodeData)->Guid, sizeof (EFI_GUID)) != 0) { 1716 return EFI_INVALID_PARAMETER; 1717 } 1718 1719 CopyMem (&FormSet->FormSetTitle, &((EFI_IFR_FORM_SET *) OpCodeData)->FormSetTitle, sizeof (EFI_STRING_ID)); 1720 CopyMem (&FormSet->Help, &((EFI_IFR_FORM_SET *) OpCodeData)->Help, sizeof (EFI_STRING_ID)); 1721 FormSet->OpCode = (EFI_IFR_OP_HEADER *) OpCodeData;//save the opcode address of formset 1722 1723 if (OpCodeLength > OFFSET_OF (EFI_IFR_FORM_SET, Flags)) { 1724 // 1725 // The formset OpCode contains ClassGuid 1726 // 1727 FormSet->NumberOfClassGuid = (UINT8) (((EFI_IFR_FORM_SET *) OpCodeData)->Flags & 0x3); 1728 CopyMem (FormSet->ClassGuid, OpCodeData + sizeof (EFI_IFR_FORM_SET), FormSet->NumberOfClassGuid * sizeof (EFI_GUID)); 1729 } 1730 break; 1731 1732 case EFI_IFR_FORM_OP: 1733 // 1734 // Create a new Form for this FormSet 1735 // 1736 CurrentForm = AllocateZeroPool (sizeof (FORM_BROWSER_FORM)); 1737 ASSERT (CurrentForm != NULL); 1738 CurrentForm->Signature = FORM_BROWSER_FORM_SIGNATURE; 1739 InitializeListHead (&CurrentForm->ExpressionListHead); 1740 InitializeListHead (&CurrentForm->StatementListHead); 1741 InitializeListHead (&CurrentForm->ConfigRequestHead); 1742 InitializeListHead (&CurrentForm->FormViewListHead); 1743 1744 CurrentForm->FormType = STANDARD_MAP_FORM_TYPE; 1745 CopyMem (&CurrentForm->FormId, &((EFI_IFR_FORM *) OpCodeData)->FormId, sizeof (UINT16)); 1746 CopyMem (&CurrentForm->FormTitle, &((EFI_IFR_FORM *) OpCodeData)->FormTitle, sizeof (EFI_STRING_ID)); 1747 1748 ConditionalExprCount = GetConditionalExpressionCount(ExpressForm); 1749 if ( ConditionalExprCount > 0) { 1750 // 1751 // Form is inside of suppressif 1752 // 1753 CurrentForm->SuppressExpression = (FORM_EXPRESSION_LIST *) AllocatePool( 1754 (UINTN) (sizeof(FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof(FORM_EXPRESSION *)))); 1755 ASSERT (CurrentForm->SuppressExpression != NULL); 1756 CurrentForm->SuppressExpression->Count = (UINTN) ConditionalExprCount; 1757 CurrentForm->SuppressExpression->Signature = FORM_EXPRESSION_LIST_SIGNATURE; 1758 CopyMem (CurrentForm->SuppressExpression->Expression, GetConditionalExpressionList(ExpressForm), (UINTN) (sizeof (FORM_EXPRESSION *) * ConditionalExprCount)); 1759 } 1760 1761 if (Scope != 0) { 1762 // 1763 // Enter scope of a Form, suppressif will be used for Question or Option 1764 // 1765 SuppressForQuestion = TRUE; 1766 } 1767 1768 // 1769 // Insert into Form list of this FormSet 1770 // 1771 InsertTailList (&FormSet->FormListHead, &CurrentForm->Link); 1772 break; 1773 1774 case EFI_IFR_FORM_MAP_OP: 1775 // 1776 // Create a new Form for this FormSet 1777 // 1778 CurrentForm = AllocateZeroPool (sizeof (FORM_BROWSER_FORM)); 1779 ASSERT (CurrentForm != NULL); 1780 CurrentForm->Signature = FORM_BROWSER_FORM_SIGNATURE; 1781 InitializeListHead (&CurrentForm->ExpressionListHead); 1782 InitializeListHead (&CurrentForm->StatementListHead); 1783 InitializeListHead (&CurrentForm->ConfigRequestHead); 1784 InitializeListHead (&CurrentForm->FormViewListHead); 1785 1786 CopyMem (&CurrentForm->FormId, &((EFI_IFR_FORM *) OpCodeData)->FormId, sizeof (UINT16)); 1787 1788 MapMethod = (EFI_IFR_FORM_MAP_METHOD *) (OpCodeData + sizeof (EFI_IFR_FORM_MAP)); 1789 // 1790 // FormMap Form must contain at least one Map Method. 1791 // 1792 if (((EFI_IFR_OP_HEADER *) OpCodeData)->Length < ((UINTN) (UINT8 *) (MapMethod + 1) - (UINTN) OpCodeData)) { 1793 return EFI_INVALID_PARAMETER; 1794 } 1795 // 1796 // Try to find the standard form map method. 1797 // 1798 while (((UINTN) (UINT8 *) MapMethod - (UINTN) OpCodeData) < ((EFI_IFR_OP_HEADER *) OpCodeData)->Length) { 1799 if (CompareGuid ((EFI_GUID *) (VOID *) &MapMethod->MethodIdentifier, &gEfiHiiStandardFormGuid)) { 1800 CopyMem (&CurrentForm->FormTitle, &MapMethod->MethodTitle, sizeof (EFI_STRING_ID)); 1801 CurrentForm->FormType = STANDARD_MAP_FORM_TYPE; 1802 break; 1803 } 1804 MapMethod ++; 1805 } 1806 // 1807 // If the standard form map method is not found, the first map method title will be used. 1808 // 1809 if (CurrentForm->FormTitle == 0) { 1810 MapMethod = (EFI_IFR_FORM_MAP_METHOD *) (OpCodeData + sizeof (EFI_IFR_FORM_MAP)); 1811 CopyMem (&CurrentForm->FormTitle, &MapMethod->MethodTitle, sizeof (EFI_STRING_ID)); 1812 } 1813 1814 ConditionalExprCount = GetConditionalExpressionCount(ExpressForm); 1815 if ( ConditionalExprCount > 0) { 1816 // 1817 // Form is inside of suppressif 1818 // 1819 CurrentForm->SuppressExpression = (FORM_EXPRESSION_LIST *) AllocatePool( 1820 (UINTN) (sizeof(FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof(FORM_EXPRESSION *)))); 1821 ASSERT (CurrentForm->SuppressExpression != NULL); 1822 CurrentForm->SuppressExpression->Count = (UINTN) ConditionalExprCount; 1823 CurrentForm->SuppressExpression->Signature = FORM_EXPRESSION_LIST_SIGNATURE; 1824 CopyMem (CurrentForm->SuppressExpression->Expression, GetConditionalExpressionList(ExpressForm), (UINTN) (sizeof (FORM_EXPRESSION *) * ConditionalExprCount)); 1825 } 1826 1827 if (Scope != 0) { 1828 // 1829 // Enter scope of a Form, suppressif will be used for Question or Option 1830 // 1831 SuppressForQuestion = TRUE; 1832 } 1833 1834 // 1835 // Insert into Form list of this FormSet 1836 // 1837 InsertTailList (&FormSet->FormListHead, &CurrentForm->Link); 1838 break; 1839 1840 // 1841 // Storage 1842 // 1843 case EFI_IFR_VARSTORE_OP: 1844 // 1845 // Create a buffer Storage for this FormSet 1846 // 1847 Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_BUFFER, OpCodeData); 1848 CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID)); 1849 break; 1850 1851 case EFI_IFR_VARSTORE_NAME_VALUE_OP: 1852 // 1853 // Create a name/value Storage for this FormSet 1854 // 1855 Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_NAME_VALUE, OpCodeData); 1856 CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID)); 1857 break; 1858 1859 case EFI_IFR_VARSTORE_EFI_OP: 1860 // 1861 // Create a EFI variable Storage for this FormSet 1862 // 1863 if (OpCodeLength < sizeof (EFI_IFR_VARSTORE_EFI)) { 1864 // 1865 // Create efi varstore with format follow UEFI spec before 2.3.1. 1866 // 1867 Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_EFI_VARIABLE, OpCodeData); 1868 } else { 1869 // 1870 // Create efi varstore with format follow UEFI spec 2.3.1 and later. 1871 // 1872 Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER, OpCodeData); 1873 } 1874 CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID)); 1875 break; 1876 1877 // 1878 // DefaultStore 1879 // 1880 case EFI_IFR_DEFAULTSTORE_OP: 1881 HaveInserted = FALSE; 1882 DefaultStore = AllocateZeroPool (sizeof (FORMSET_DEFAULTSTORE)); 1883 ASSERT (DefaultStore != NULL); 1884 DefaultStore->Signature = FORMSET_DEFAULTSTORE_SIGNATURE; 1885 1886 CopyMem (&DefaultStore->DefaultId, &((EFI_IFR_DEFAULTSTORE *) OpCodeData)->DefaultId, sizeof (UINT16)); 1887 CopyMem (&DefaultStore->DefaultName, &((EFI_IFR_DEFAULTSTORE *) OpCodeData)->DefaultName, sizeof (EFI_STRING_ID)); 1888 // 1889 // Insert it to the DefaultStore list of this Formset with ascending order. 1890 // 1891 if (!IsListEmpty (&FormSet->DefaultStoreListHead)) { 1892 DefaultLink = GetFirstNode (&FormSet->DefaultStoreListHead); 1893 while (!IsNull (&FormSet->DefaultStoreListHead, DefaultLink)) { 1894 PreDefaultStore = FORMSET_DEFAULTSTORE_FROM_LINK(DefaultLink); 1895 DefaultLink = GetNextNode (&FormSet->DefaultStoreListHead, DefaultLink); 1896 if (DefaultStore->DefaultId < PreDefaultStore->DefaultId) { 1897 InsertTailList (&PreDefaultStore->Link, &DefaultStore->Link); 1898 HaveInserted = TRUE; 1899 break; 1900 } 1901 } 1902 } 1903 if (!HaveInserted) { 1904 InsertTailList (&FormSet->DefaultStoreListHead, &DefaultStore->Link); 1905 } 1906 break; 1907 1908 // 1909 // Statements 1910 // 1911 case EFI_IFR_SUBTITLE_OP: 1912 CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm); 1913 ASSERT (CurrentStatement != NULL); 1914 1915 CurrentStatement->Flags = ((EFI_IFR_SUBTITLE *) OpCodeData)->Flags; 1916 CurrentStatement->FakeQuestionId = mUsedQuestionId++; 1917 break; 1918 1919 case EFI_IFR_TEXT_OP: 1920 CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm); 1921 ASSERT (CurrentStatement != NULL); 1922 CurrentStatement->FakeQuestionId = mUsedQuestionId++; 1923 CopyMem (&CurrentStatement->TextTwo, &((EFI_IFR_TEXT *) OpCodeData)->TextTwo, sizeof (EFI_STRING_ID)); 1924 break; 1925 1926 case EFI_IFR_RESET_BUTTON_OP: 1927 CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm); 1928 ASSERT (CurrentStatement != NULL); 1929 CurrentStatement->FakeQuestionId = mUsedQuestionId++; 1930 CopyMem (&CurrentStatement->DefaultId, &((EFI_IFR_RESET_BUTTON *) OpCodeData)->DefaultId, sizeof (EFI_DEFAULT_ID)); 1931 break; 1932 1933 // 1934 // Questions 1935 // 1936 case EFI_IFR_ACTION_OP: 1937 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 1938 ASSERT (CurrentStatement != NULL); 1939 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_ACTION; 1940 1941 if (OpCodeLength == sizeof (EFI_IFR_ACTION_1)) { 1942 // 1943 // No QuestionConfig present, so no configuration string will be processed 1944 // 1945 CurrentStatement->QuestionConfig = 0; 1946 } else { 1947 CopyMem (&CurrentStatement->QuestionConfig, &((EFI_IFR_ACTION *) OpCodeData)->QuestionConfig, sizeof (EFI_STRING_ID)); 1948 } 1949 break; 1950 1951 case EFI_IFR_REF_OP: 1952 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 1953 ASSERT (CurrentStatement != NULL); 1954 Value = &CurrentStatement->HiiValue; 1955 Value->Type = EFI_IFR_TYPE_REF; 1956 if (OpCodeLength >= sizeof (EFI_IFR_REF)) { 1957 CopyMem (&Value->Value.ref.FormId, &((EFI_IFR_REF *) OpCodeData)->FormId, sizeof (EFI_FORM_ID)); 1958 1959 if (OpCodeLength >= sizeof (EFI_IFR_REF2)) { 1960 CopyMem (&Value->Value.ref.QuestionId, &((EFI_IFR_REF2 *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID)); 1961 1962 if (OpCodeLength >= sizeof (EFI_IFR_REF3)) { 1963 CopyMem (&Value->Value.ref.FormSetGuid, &((EFI_IFR_REF3 *) OpCodeData)->FormSetId, sizeof (EFI_GUID)); 1964 1965 if (OpCodeLength >= sizeof (EFI_IFR_REF4)) { 1966 CopyMem (&Value->Value.ref.DevicePath, &((EFI_IFR_REF4 *) OpCodeData)->DevicePath, sizeof (EFI_STRING_ID)); 1967 } 1968 } 1969 } 1970 } 1971 CurrentStatement->StorageWidth = (UINT16) sizeof (EFI_HII_REF); 1972 InitializeRequestElement (FormSet, CurrentStatement, CurrentForm); 1973 break; 1974 1975 case EFI_IFR_ONE_OF_OP: 1976 case EFI_IFR_NUMERIC_OP: 1977 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 1978 ASSERT(CurrentStatement != NULL); 1979 1980 CurrentStatement->Flags = ((EFI_IFR_ONE_OF *) OpCodeData)->Flags; 1981 Value = &CurrentStatement->HiiValue; 1982 1983 switch (CurrentStatement->Flags & EFI_IFR_NUMERIC_SIZE) { 1984 case EFI_IFR_NUMERIC_SIZE_1: 1985 CurrentStatement->Minimum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MinValue; 1986 CurrentStatement->Maximum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MaxValue; 1987 CurrentStatement->Step = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.Step; 1988 CurrentStatement->StorageWidth = (UINT16) sizeof (UINT8); 1989 Value->Type = EFI_IFR_TYPE_NUM_SIZE_8; 1990 break; 1991 1992 case EFI_IFR_NUMERIC_SIZE_2: 1993 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MinValue, sizeof (UINT16)); 1994 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MaxValue, sizeof (UINT16)); 1995 CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.Step, sizeof (UINT16)); 1996 CurrentStatement->StorageWidth = (UINT16) sizeof (UINT16); 1997 Value->Type = EFI_IFR_TYPE_NUM_SIZE_16; 1998 break; 1999 2000 case EFI_IFR_NUMERIC_SIZE_4: 2001 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MinValue, sizeof (UINT32)); 2002 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MaxValue, sizeof (UINT32)); 2003 CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.Step, sizeof (UINT32)); 2004 CurrentStatement->StorageWidth = (UINT16) sizeof (UINT32); 2005 Value->Type = EFI_IFR_TYPE_NUM_SIZE_32; 2006 break; 2007 2008 case EFI_IFR_NUMERIC_SIZE_8: 2009 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.MinValue, sizeof (UINT64)); 2010 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.MaxValue, sizeof (UINT64)); 2011 CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.Step, sizeof (UINT64)); 2012 CurrentStatement->StorageWidth = (UINT16) sizeof (UINT64); 2013 Value->Type = EFI_IFR_TYPE_NUM_SIZE_64; 2014 break; 2015 2016 default: 2017 break; 2018 } 2019 2020 InitializeRequestElement (FormSet, CurrentStatement, CurrentForm); 2021 2022 if ((Operand == EFI_IFR_ONE_OF_OP) && Scope != 0) { 2023 SuppressForOption = TRUE; 2024 } 2025 break; 2026 2027 case EFI_IFR_ORDERED_LIST_OP: 2028 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 2029 ASSERT(CurrentStatement != NULL); 2030 2031 CurrentStatement->Flags = ((EFI_IFR_ORDERED_LIST *) OpCodeData)->Flags; 2032 CurrentStatement->MaxContainers = ((EFI_IFR_ORDERED_LIST *) OpCodeData)->MaxContainers; 2033 2034 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_BUFFER; 2035 CurrentStatement->BufferValue = NULL; 2036 2037 if (Scope != 0) { 2038 SuppressForOption = TRUE; 2039 } 2040 break; 2041 2042 case EFI_IFR_CHECKBOX_OP: 2043 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 2044 ASSERT(CurrentStatement != NULL); 2045 2046 CurrentStatement->Flags = ((EFI_IFR_CHECKBOX *) OpCodeData)->Flags; 2047 CurrentStatement->StorageWidth = (UINT16) sizeof (BOOLEAN); 2048 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_BOOLEAN; 2049 2050 InitializeRequestElement (FormSet, CurrentStatement, CurrentForm); 2051 2052 break; 2053 2054 case EFI_IFR_STRING_OP: 2055 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 2056 ASSERT (CurrentStatement != NULL); 2057 // 2058 // MinSize is the minimum number of characters that can be accepted for this opcode, 2059 // MaxSize is the maximum number of characters that can be accepted for this opcode. 2060 // The characters are stored as Unicode, so the storage width should multiply 2. 2061 // 2062 CurrentStatement->Minimum = ((EFI_IFR_STRING *) OpCodeData)->MinSize; 2063 CurrentStatement->Maximum = ((EFI_IFR_STRING *) OpCodeData)->MaxSize; 2064 CurrentStatement->StorageWidth = (UINT16)((UINTN) CurrentStatement->Maximum * sizeof (CHAR16)); 2065 CurrentStatement->Flags = ((EFI_IFR_STRING *) OpCodeData)->Flags; 2066 2067 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_STRING; 2068 CurrentStatement->BufferValue = AllocateZeroPool (CurrentStatement->StorageWidth + sizeof (CHAR16)); 2069 CurrentStatement->HiiValue.Value.string = NewString ((CHAR16*) CurrentStatement->BufferValue, FormSet->HiiHandle); 2070 2071 InitializeRequestElement (FormSet, CurrentStatement, CurrentForm); 2072 break; 2073 2074 case EFI_IFR_PASSWORD_OP: 2075 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 2076 ASSERT (CurrentStatement != NULL); 2077 // 2078 // MinSize is the minimum number of characters that can be accepted for this opcode, 2079 // MaxSize is the maximum number of characters that can be accepted for this opcode. 2080 // The characters are stored as Unicode, so the storage width should multiply 2. 2081 // 2082 CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_PASSWORD *) OpCodeData)->MinSize, sizeof (UINT16)); 2083 CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_PASSWORD *) OpCodeData)->MaxSize, sizeof (UINT16)); 2084 CurrentStatement->StorageWidth = (UINT16)((UINTN) CurrentStatement->Maximum * sizeof (CHAR16)); 2085 2086 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_STRING; 2087 CurrentStatement->BufferValue = AllocateZeroPool ((CurrentStatement->StorageWidth + sizeof (CHAR16))); 2088 CurrentStatement->HiiValue.Value.string = NewString ((CHAR16*) CurrentStatement->BufferValue, FormSet->HiiHandle); 2089 2090 InitializeRequestElement (FormSet, CurrentStatement, CurrentForm); 2091 break; 2092 2093 case EFI_IFR_DATE_OP: 2094 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 2095 ASSERT(CurrentStatement != NULL); 2096 2097 CurrentStatement->Flags = ((EFI_IFR_DATE *) OpCodeData)->Flags; 2098 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_DATE; 2099 2100 if ((CurrentStatement->Flags & EFI_QF_DATE_STORAGE) == QF_DATE_STORAGE_NORMAL) { 2101 CurrentStatement->StorageWidth = (UINT16) sizeof (EFI_HII_DATE); 2102 2103 InitializeRequestElement (FormSet, CurrentStatement, CurrentForm); 2104 } else { 2105 // 2106 // Don't assign storage for RTC type of date/time 2107 // 2108 CurrentStatement->Storage = NULL; 2109 CurrentStatement->StorageWidth = 0; 2110 } 2111 break; 2112 2113 case EFI_IFR_TIME_OP: 2114 CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm); 2115 ASSERT(CurrentStatement != NULL); 2116 2117 CurrentStatement->Flags = ((EFI_IFR_TIME *) OpCodeData)->Flags; 2118 CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_TIME; 2119 2120 if ((CurrentStatement->Flags & QF_TIME_STORAGE) == QF_TIME_STORAGE_NORMAL) { 2121 CurrentStatement->StorageWidth = (UINT16) sizeof (EFI_HII_TIME); 2122 2123 InitializeRequestElement (FormSet, CurrentStatement, CurrentForm); 2124 } else { 2125 // 2126 // Don't assign storage for RTC type of date/time 2127 // 2128 CurrentStatement->Storage = NULL; 2129 CurrentStatement->StorageWidth = 0; 2130 } 2131 break; 2132 2133 // 2134 // Default 2135 // 2136 case EFI_IFR_DEFAULT_OP: 2137 // 2138 // EFI_IFR_DEFAULT appear in scope of a Question, 2139 // It creates a default value for the current question. 2140 // A Question may have more than one Default value which have different default types. 2141 // 2142 CurrentDefault = AllocateZeroPool (sizeof (QUESTION_DEFAULT)); 2143 ASSERT (CurrentDefault != NULL); 2144 CurrentDefault->Signature = QUESTION_DEFAULT_SIGNATURE; 2145 2146 CurrentDefault->Value.Type = ((EFI_IFR_DEFAULT *) OpCodeData)->Type; 2147 CopyMem (&CurrentDefault->DefaultId, &((EFI_IFR_DEFAULT *) OpCodeData)->DefaultId, sizeof (UINT16)); 2148 if (CurrentDefault->Value.Type == EFI_IFR_TYPE_BUFFER) { 2149 CurrentDefault->Value.BufferLen = (UINT16) (OpCodeLength - OFFSET_OF (EFI_IFR_DEFAULT, Value)); 2150 CurrentDefault->Value.Buffer = AllocateCopyPool (CurrentDefault->Value.BufferLen, &((EFI_IFR_DEFAULT *) OpCodeData)->Value); 2151 ASSERT (CurrentDefault->Value.Buffer != NULL); 2152 } else { 2153 CopyMem (&CurrentDefault->Value.Value, &((EFI_IFR_DEFAULT *) OpCodeData)->Value, OpCodeLength - OFFSET_OF (EFI_IFR_DEFAULT, Value)); 2154 ExtendValueToU64 (&CurrentDefault->Value); 2155 } 2156 2157 // 2158 // Insert to Default Value list of current Question 2159 // 2160 InsertTailList (&ParentStatement->DefaultListHead, &CurrentDefault->Link); 2161 2162 if (Scope != 0) { 2163 InScopeDefault = TRUE; 2164 } 2165 break; 2166 2167 // 2168 // Option 2169 // 2170 case EFI_IFR_ONE_OF_OPTION_OP: 2171 ASSERT (ParentStatement != NULL); 2172 if (ParentStatement->Operand == EFI_IFR_ORDERED_LIST_OP && ((((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Flags & (EFI_IFR_OPTION_DEFAULT | EFI_IFR_OPTION_DEFAULT_MFG)) != 0)) { 2173 // 2174 // It's keep the default value for ordered list opcode. 2175 // 2176 CurrentDefault = AllocateZeroPool (sizeof (QUESTION_DEFAULT)); 2177 ASSERT (CurrentDefault != NULL); 2178 CurrentDefault->Signature = QUESTION_DEFAULT_SIGNATURE; 2179 2180 CurrentDefault->Value.Type = EFI_IFR_TYPE_BUFFER; 2181 if ((((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Flags & EFI_IFR_OPTION_DEFAULT) != 0) { 2182 CurrentDefault->DefaultId = EFI_HII_DEFAULT_CLASS_STANDARD; 2183 } else { 2184 CurrentDefault->DefaultId = EFI_HII_DEFAULT_CLASS_MANUFACTURING; 2185 } 2186 2187 CurrentDefault->Value.BufferLen = (UINT16) (OpCodeLength - OFFSET_OF (EFI_IFR_ONE_OF_OPTION, Value)); 2188 CurrentDefault->Value.Buffer = AllocateCopyPool (CurrentDefault->Value.BufferLen, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Value); 2189 ASSERT (CurrentDefault->Value.Buffer != NULL); 2190 2191 // 2192 // Insert to Default Value list of current Question 2193 // 2194 InsertTailList (&ParentStatement->DefaultListHead, &CurrentDefault->Link); 2195 break; 2196 } 2197 2198 // 2199 // EFI_IFR_ONE_OF_OPTION appear in scope of a Question. 2200 // It create a selection for use in current Question. 2201 // 2202 CurrentOption = AllocateZeroPool (sizeof (QUESTION_OPTION)); 2203 ASSERT (CurrentOption != NULL); 2204 CurrentOption->Signature = QUESTION_OPTION_SIGNATURE; 2205 CurrentOption->OpCode = (EFI_IFR_ONE_OF_OPTION *) OpCodeData; 2206 2207 CurrentOption->Flags = ((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Flags; 2208 CurrentOption->Value.Type = ((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Type; 2209 CopyMem (&CurrentOption->Text, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Option, sizeof (EFI_STRING_ID)); 2210 CopyMem (&CurrentOption->Value.Value, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Value, OpCodeLength - OFFSET_OF (EFI_IFR_ONE_OF_OPTION, Value)); 2211 ExtendValueToU64 (&CurrentOption->Value); 2212 2213 ConditionalExprCount = GetConditionalExpressionCount(ExpressOption); 2214 if ( ConditionalExprCount > 0) { 2215 // 2216 // Form is inside of suppressif 2217 // 2218 CurrentOption->SuppressExpression = (FORM_EXPRESSION_LIST *) AllocatePool( 2219 (UINTN) (sizeof(FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof(FORM_EXPRESSION *)))); 2220 ASSERT (CurrentOption->SuppressExpression != NULL); 2221 CurrentOption->SuppressExpression->Count = (UINTN) ConditionalExprCount; 2222 CurrentOption->SuppressExpression->Signature = FORM_EXPRESSION_LIST_SIGNATURE; 2223 CopyMem (CurrentOption->SuppressExpression->Expression, GetConditionalExpressionList(ExpressOption), (UINTN) (sizeof (FORM_EXPRESSION *) * ConditionalExprCount)); 2224 } 2225 2226 // 2227 // Insert to Option list of current Question 2228 // 2229 InsertTailList (&ParentStatement->OptionListHead, &CurrentOption->Link); 2230 // 2231 // Now we know the Storage width of nested Ordered List 2232 // 2233 if ((ParentStatement->Operand == EFI_IFR_ORDERED_LIST_OP) && (ParentStatement->BufferValue == NULL)) { 2234 Width = 1; 2235 switch (CurrentOption->Value.Type) { 2236 case EFI_IFR_TYPE_NUM_SIZE_8: 2237 Width = 1; 2238 break; 2239 2240 case EFI_IFR_TYPE_NUM_SIZE_16: 2241 Width = 2; 2242 break; 2243 2244 case EFI_IFR_TYPE_NUM_SIZE_32: 2245 Width = 4; 2246 break; 2247 2248 case EFI_IFR_TYPE_NUM_SIZE_64: 2249 Width = 8; 2250 break; 2251 2252 default: 2253 // 2254 // Invalid type for Ordered List 2255 // 2256 break; 2257 } 2258 2259 ParentStatement->StorageWidth = (UINT16) (ParentStatement->MaxContainers * Width); 2260 ParentStatement->BufferValue = AllocateZeroPool (ParentStatement->StorageWidth); 2261 ParentStatement->ValueType = CurrentOption->Value.Type; 2262 if (ParentStatement->HiiValue.Type == EFI_IFR_TYPE_BUFFER) { 2263 ParentStatement->HiiValue.Buffer = ParentStatement->BufferValue; 2264 ParentStatement->HiiValue.BufferLen = ParentStatement->StorageWidth; 2265 } 2266 2267 InitializeRequestElement (FormSet, ParentStatement, CurrentForm); 2268 } 2269 break; 2270 2271 // 2272 // Conditional 2273 // 2274 case EFI_IFR_NO_SUBMIT_IF_OP: 2275 case EFI_IFR_INCONSISTENT_IF_OP: 2276 // 2277 // Create an Expression node 2278 // 2279 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2280 CopyMem (&CurrentExpression->Error, &((EFI_IFR_INCONSISTENT_IF *) OpCodeData)->Error, sizeof (EFI_STRING_ID)); 2281 2282 if (Operand == EFI_IFR_NO_SUBMIT_IF_OP) { 2283 CurrentExpression->Type = EFI_HII_EXPRESSION_NO_SUBMIT_IF; 2284 InsertTailList (&ParentStatement->NoSubmitListHead, &CurrentExpression->Link); 2285 } else { 2286 CurrentExpression->Type = EFI_HII_EXPRESSION_INCONSISTENT_IF; 2287 InsertTailList (&ParentStatement->InconsistentListHead, &CurrentExpression->Link); 2288 } 2289 2290 // 2291 // Take a look at next OpCode to see whether current expression consists 2292 // of single OpCode 2293 // 2294 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2295 SingleOpCodeExpression = TRUE; 2296 } 2297 break; 2298 2299 case EFI_IFR_WARNING_IF_OP: 2300 // 2301 // Create an Expression node 2302 // 2303 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2304 CopyMem (&CurrentExpression->Error, &((EFI_IFR_WARNING_IF *) OpCodeData)->Warning, sizeof (EFI_STRING_ID)); 2305 CurrentExpression->TimeOut = ((EFI_IFR_WARNING_IF *) OpCodeData)->TimeOut; 2306 CurrentExpression->Type = EFI_HII_EXPRESSION_WARNING_IF; 2307 InsertTailList (&ParentStatement->WarningListHead, &CurrentExpression->Link); 2308 2309 // 2310 // Take a look at next OpCode to see whether current expression consists 2311 // of single OpCode 2312 // 2313 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2314 SingleOpCodeExpression = TRUE; 2315 } 2316 break; 2317 2318 case EFI_IFR_SUPPRESS_IF_OP: 2319 // 2320 // Question and Option will appear in scope of this OpCode 2321 // 2322 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2323 CurrentExpression->Type = EFI_HII_EXPRESSION_SUPPRESS_IF; 2324 2325 if (CurrentForm == NULL) { 2326 InsertTailList (&FormSet->ExpressionListHead, &CurrentExpression->Link); 2327 } else { 2328 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link); 2329 } 2330 2331 if (SuppressForOption) { 2332 PushConditionalExpression(CurrentExpression, ExpressOption); 2333 } else if (SuppressForQuestion) { 2334 PushConditionalExpression(CurrentExpression, ExpressStatement); 2335 } else { 2336 PushConditionalExpression(CurrentExpression, ExpressForm); 2337 } 2338 2339 // 2340 // Take a look at next OpCode to see whether current expression consists 2341 // of single OpCode 2342 // 2343 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2344 SingleOpCodeExpression = TRUE; 2345 } 2346 break; 2347 2348 case EFI_IFR_GRAY_OUT_IF_OP: 2349 // 2350 // Questions will appear in scope of this OpCode 2351 // 2352 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2353 CurrentExpression->Type = EFI_HII_EXPRESSION_GRAY_OUT_IF; 2354 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link); 2355 PushConditionalExpression(CurrentExpression, ExpressStatement); 2356 2357 // 2358 // Take a look at next OpCode to see whether current expression consists 2359 // of single OpCode 2360 // 2361 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2362 SingleOpCodeExpression = TRUE; 2363 } 2364 break; 2365 2366 case EFI_IFR_DISABLE_IF_OP: 2367 // 2368 // The DisableIf expression should only rely on constant, so it could be 2369 // evaluated at initialization and it will not be queued 2370 // 2371 CurrentExpression = AllocateZeroPool (sizeof (FORM_EXPRESSION)); 2372 ASSERT (CurrentExpression != NULL); 2373 CurrentExpression->Signature = FORM_EXPRESSION_SIGNATURE; 2374 CurrentExpression->Type = EFI_HII_EXPRESSION_DISABLE_IF; 2375 InitializeListHead (&CurrentExpression->OpCodeListHead); 2376 2377 if (CurrentForm != NULL) { 2378 // 2379 // This is DisableIf for Question, enqueue it to Form expression list 2380 // 2381 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link); 2382 PushConditionalExpression(CurrentExpression, ExpressStatement); 2383 } 2384 2385 OpCodeDisabled = FALSE; 2386 InScopeDisable = TRUE; 2387 // 2388 // Take a look at next OpCode to see whether current expression consists 2389 // of single OpCode 2390 // 2391 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2392 SingleOpCodeExpression = TRUE; 2393 } 2394 break; 2395 2396 // 2397 // Expression 2398 // 2399 case EFI_IFR_VALUE_OP: 2400 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2401 CurrentExpression->Type = EFI_HII_EXPRESSION_VALUE; 2402 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link); 2403 2404 if (InScopeDefault) { 2405 // 2406 // Used for default (EFI_IFR_DEFAULT) 2407 // 2408 CurrentDefault->ValueExpression = CurrentExpression; 2409 } else { 2410 // 2411 // If used for a question, then the question will be read-only 2412 // 2413 // 2414 // Make sure CurrentStatement is not NULL. 2415 // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR 2416 // file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler. 2417 // 2418 ASSERT (ParentStatement != NULL); 2419 ParentStatement->ValueExpression = CurrentExpression; 2420 } 2421 2422 // 2423 // Take a look at next OpCode to see whether current expression consists 2424 // of single OpCode 2425 // 2426 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2427 SingleOpCodeExpression = TRUE; 2428 } 2429 break; 2430 2431 case EFI_IFR_RULE_OP: 2432 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2433 CurrentExpression->Type = EFI_HII_EXPRESSION_RULE; 2434 2435 CurrentExpression->RuleId = ((EFI_IFR_RULE *) OpCodeData)->RuleId; 2436 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link); 2437 2438 // 2439 // Take a look at next OpCode to see whether current expression consists 2440 // of single OpCode 2441 // 2442 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2443 SingleOpCodeExpression = TRUE; 2444 } 2445 break; 2446 2447 case EFI_IFR_READ_OP: 2448 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2449 CurrentExpression->Type = EFI_HII_EXPRESSION_READ; 2450 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link); 2451 2452 // 2453 // Make sure CurrentStatement is not NULL. 2454 // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR 2455 // file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler. 2456 // 2457 ASSERT (ParentStatement != NULL); 2458 ParentStatement->ReadExpression = CurrentExpression; 2459 2460 // 2461 // Take a look at next OpCode to see whether current expression consists 2462 // of single OpCode 2463 // 2464 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2465 SingleOpCodeExpression = TRUE; 2466 } 2467 break; 2468 2469 case EFI_IFR_WRITE_OP: 2470 CurrentExpression = CreateExpression (CurrentForm, OpCodeData); 2471 CurrentExpression->Type = EFI_HII_EXPRESSION_WRITE; 2472 InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link); 2473 2474 // 2475 // Make sure CurrentStatement is not NULL. 2476 // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR 2477 // file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler. 2478 // 2479 ASSERT (ParentStatement != NULL); 2480 ParentStatement->WriteExpression = CurrentExpression; 2481 2482 // 2483 // Take a look at next OpCode to see whether current expression consists 2484 // of single OpCode 2485 // 2486 if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) { 2487 SingleOpCodeExpression = TRUE; 2488 } 2489 break; 2490 2491 // 2492 // Image 2493 // 2494 case EFI_IFR_IMAGE_OP: 2495 // 2496 // Get ScopeOpcode from top of stack 2497 // 2498 PopScope (&ScopeOpCode); 2499 PushScope (ScopeOpCode); 2500 2501 switch (ScopeOpCode) { 2502 case EFI_IFR_FORM_SET_OP: 2503 ImageId = &FormSet->ImageId; 2504 break; 2505 2506 case EFI_IFR_FORM_OP: 2507 case EFI_IFR_FORM_MAP_OP: 2508 ASSERT (CurrentForm != NULL); 2509 ImageId = &CurrentForm->ImageId; 2510 break; 2511 2512 case EFI_IFR_ONE_OF_OPTION_OP: 2513 ASSERT (CurrentOption != NULL); 2514 ImageId = &CurrentOption->ImageId; 2515 break; 2516 2517 default: 2518 // 2519 // Make sure CurrentStatement is not NULL. 2520 // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR 2521 // file is wrongly generated by tools such as VFR Compiler. 2522 // 2523 ASSERT (ParentStatement != NULL); 2524 ImageId = &ParentStatement->ImageId; 2525 break; 2526 } 2527 2528 ASSERT (ImageId != NULL); 2529 CopyMem (ImageId, &((EFI_IFR_IMAGE *) OpCodeData)->Id, sizeof (EFI_IMAGE_ID)); 2530 break; 2531 2532 // 2533 // Refresh 2534 // 2535 case EFI_IFR_REFRESH_OP: 2536 ASSERT (ParentStatement != NULL); 2537 ParentStatement->RefreshInterval = ((EFI_IFR_REFRESH *) OpCodeData)->RefreshInterval; 2538 break; 2539 2540 // 2541 // Refresh guid. 2542 // 2543 case EFI_IFR_REFRESH_ID_OP: 2544 // 2545 // Get ScopeOpcode from top of stack 2546 // 2547 PopScope (&ScopeOpCode); 2548 PushScope (ScopeOpCode); 2549 2550 switch (ScopeOpCode) { 2551 case EFI_IFR_FORM_OP: 2552 case EFI_IFR_FORM_MAP_OP: 2553 ASSERT (CurrentForm != NULL); 2554 CopyMem (&CurrentForm->RefreshGuid, &((EFI_IFR_REFRESH_ID *) OpCodeData)->RefreshEventGroupId, sizeof (EFI_GUID)); 2555 break; 2556 2557 default: 2558 ASSERT (ParentStatement != NULL); 2559 CopyMem (&ParentStatement->RefreshGuid, &((EFI_IFR_REFRESH_ID *) OpCodeData)->RefreshEventGroupId, sizeof (EFI_GUID)); 2560 break; 2561 } 2562 break; 2563 2564 // 2565 // Modal tag 2566 // 2567 case EFI_IFR_MODAL_TAG_OP: 2568 ASSERT (CurrentForm != NULL); 2569 CurrentForm->ModalForm = TRUE; 2570 break; 2571 2572 // 2573 // Lock tag, used by form and statement. 2574 // 2575 case EFI_IFR_LOCKED_OP: 2576 // 2577 // Get ScopeOpcode from top of stack 2578 // 2579 PopScope (&ScopeOpCode); 2580 PushScope (ScopeOpCode); 2581 switch (ScopeOpCode) { 2582 case EFI_IFR_FORM_OP: 2583 case EFI_IFR_FORM_MAP_OP: 2584 ASSERT (CurrentForm != NULL); 2585 CurrentForm->Locked = TRUE; 2586 break; 2587 2588 default: 2589 ASSERT (ParentStatement != NULL); 2590 ParentStatement->Locked = TRUE; 2591 } 2592 break; 2593 2594 // 2595 // Vendor specific 2596 // 2597 case EFI_IFR_GUID_OP: 2598 CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm); 2599 break; 2600 2601 // 2602 // Scope End 2603 // 2604 case EFI_IFR_END_OP: 2605 Status = PopScope (&ScopeOpCode); 2606 if (EFI_ERROR (Status)) { 2607 ResetScopeStack (); 2608 return Status; 2609 } 2610 2611 // 2612 // Parent statement end tag found, update ParentStatement info. 2613 // 2614 if (IsStatementOpCode(ScopeOpCode) && (ParentStatement != NULL) && (ParentStatement->Operand == ScopeOpCode)) { 2615 ParentStatement = ParentStatement->ParentStatement; 2616 } 2617 2618 switch (ScopeOpCode) { 2619 case EFI_IFR_FORM_SET_OP: 2620 // 2621 // End of FormSet, update FormSet IFR binary length 2622 // to stop parsing substantial OpCodes 2623 // 2624 FormSet->IfrBinaryLength = OpCodeOffset; 2625 break; 2626 2627 case EFI_IFR_FORM_OP: 2628 case EFI_IFR_FORM_MAP_OP: 2629 // 2630 // End of Form 2631 // 2632 CurrentForm = NULL; 2633 SuppressForQuestion = FALSE; 2634 break; 2635 2636 case EFI_IFR_ONE_OF_OPTION_OP: 2637 // 2638 // End of Option 2639 // 2640 CurrentOption = NULL; 2641 break; 2642 2643 case EFI_IFR_NO_SUBMIT_IF_OP: 2644 case EFI_IFR_INCONSISTENT_IF_OP: 2645 case EFI_IFR_WARNING_IF_OP: 2646 // 2647 // Ignore end of EFI_IFR_NO_SUBMIT_IF and EFI_IFR_INCONSISTENT_IF 2648 // 2649 break; 2650 2651 case EFI_IFR_SUPPRESS_IF_OP: 2652 if (SuppressForOption) { 2653 PopConditionalExpression(ExpressOption); 2654 } else if (SuppressForQuestion) { 2655 PopConditionalExpression(ExpressStatement); 2656 } else { 2657 PopConditionalExpression(ExpressForm); 2658 } 2659 break; 2660 2661 case EFI_IFR_GRAY_OUT_IF_OP: 2662 PopConditionalExpression(ExpressStatement); 2663 break; 2664 2665 case EFI_IFR_DISABLE_IF_OP: 2666 if (CurrentForm != NULL) { 2667 PopConditionalExpression(ExpressStatement); 2668 } 2669 InScopeDisable = FALSE; 2670 OpCodeDisabled = FALSE; 2671 break; 2672 2673 case EFI_IFR_ONE_OF_OP: 2674 case EFI_IFR_ORDERED_LIST_OP: 2675 SuppressForOption = FALSE; 2676 break; 2677 2678 case EFI_IFR_DEFAULT_OP: 2679 InScopeDefault = FALSE; 2680 break; 2681 2682 case EFI_IFR_MAP_OP: 2683 // 2684 // Get current Map Expression List. 2685 // 2686 Status = PopMapExpressionList ((VOID **) &MapExpressionList); 2687 if (Status == EFI_ACCESS_DENIED) { 2688 MapExpressionList = NULL; 2689 } 2690 // 2691 // Get current expression. 2692 // 2693 Status = PopCurrentExpression ((VOID **) &CurrentExpression); 2694 ASSERT_EFI_ERROR (Status); 2695 ASSERT (MapScopeDepth > 0); 2696 MapScopeDepth --; 2697 break; 2698 2699 default: 2700 if (IsExpressionOpCode (ScopeOpCode)) { 2701 if (InScopeDisable && CurrentForm == NULL) { 2702 // 2703 // This is DisableIf expression for Form, it should be a constant expression 2704 // 2705 ASSERT (CurrentExpression != NULL); 2706 Status = EvaluateExpression (FormSet, CurrentForm, CurrentExpression); 2707 if (EFI_ERROR (Status)) { 2708 return Status; 2709 } 2710 2711 OpCodeDisabled = IsTrue (&CurrentExpression->Result); 2712 2713 // 2714 // DisableIf Expression is only used once and not queued, free it 2715 // 2716 DestroyExpression (CurrentExpression); 2717 } 2718 2719 // 2720 // End of current Expression 2721 // 2722 CurrentExpression = NULL; 2723 } 2724 break; 2725 } 2726 break; 2727 2728 default: 2729 break; 2730 } 2731 2732 if (IsStatementOpCode(Operand)) { 2733 CurrentStatement->ParentStatement = ParentStatement; 2734 if (Scope != 0) { 2735 // 2736 // Scope != 0, other statements or options may nest in this statement. 2737 // Update the ParentStatement info. 2738 // 2739 ParentStatement = CurrentStatement; 2740 } 2741 } 2742 } 2743 2744 return EFI_SUCCESS; 2745 } 2746
