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audk/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c

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/** @file
Parser for IFR binary encoding.
Copyright (c) 2007 - 2020, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Setup.h"
UINTN mStatementIndex;
UINTN mExpressionOpCodeIndex;
EFI_QUESTION_ID mUsedQuestionId;
extern LIST_ENTRY gBrowserStorageList;
/**
Initialize Statement header members.
@param OpCodeData Pointer of the raw OpCode data.
@param FormSet Pointer of the current FormSet.
@param Form Pointer of the current Form.
@return The Statement.
**/
FORM_BROWSER_STATEMENT *
CreateStatement (
IN UINT8 *OpCodeData,
IN OUT FORM_BROWSER_FORMSET *FormSet,
IN OUT FORM_BROWSER_FORM *Form
)
{
FORM_BROWSER_STATEMENT *Statement;
EFI_IFR_STATEMENT_HEADER *StatementHdr;
INTN ConditionalExprCount;
if (Form == NULL) {
//
// Only guid op may out side the form level.
//
ASSERT (((EFI_IFR_OP_HEADER *)OpCodeData)->OpCode == EFI_IFR_GUID_OP);
}
Statement = &FormSet->StatementBuffer[mStatementIndex];
mStatementIndex++;
InitializeListHead (&Statement->DefaultListHead);
InitializeListHead (&Statement->OptionListHead);
InitializeListHead (&Statement->InconsistentListHead);
InitializeListHead (&Statement->NoSubmitListHead);
InitializeListHead (&Statement->WarningListHead);
Statement->Signature = FORM_BROWSER_STATEMENT_SIGNATURE;
Statement->Operand = ((EFI_IFR_OP_HEADER *)OpCodeData)->OpCode;
Statement->OpCode = (EFI_IFR_OP_HEADER *)OpCodeData;
Statement->QuestionReferToBitField = FALSE;
StatementHdr = (EFI_IFR_STATEMENT_HEADER *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER));
CopyMem (&Statement->Prompt, &StatementHdr->Prompt, sizeof (EFI_STRING_ID));
CopyMem (&Statement->Help, &StatementHdr->Help, sizeof (EFI_STRING_ID));
ConditionalExprCount = GetConditionalExpressionCount (ExpressStatement);
if (ConditionalExprCount > 0) {
//
// Form is inside of suppressif
//
Statement->Expression = (FORM_EXPRESSION_LIST *)AllocatePool (
(UINTN)(sizeof (FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof (FORM_EXPRESSION *)))
);
ASSERT (Statement->Expression != NULL);
Statement->Expression->Count = (UINTN)ConditionalExprCount;
Statement->Expression->Signature = FORM_EXPRESSION_LIST_SIGNATURE;
CopyMem (Statement->Expression->Expression, GetConditionalExpressionList (ExpressStatement), (UINTN)(sizeof (FORM_EXPRESSION *) * ConditionalExprCount));
}
//
// Insert this Statement into current Form
//
if (Form == NULL) {
InsertTailList (&FormSet->StatementListOSF, &Statement->Link);
} else {
InsertTailList (&Form->StatementListHead, &Statement->Link);
}
return Statement;
}
/**
Initialize Question's members.
@param OpCodeData Pointer of the raw OpCode data.
@param FormSet Pointer of the current FormSet.
@param Form Pointer of the current Form.
@return The Question.
**/
FORM_BROWSER_STATEMENT *
CreateQuestion (
IN UINT8 *OpCodeData,
IN OUT FORM_BROWSER_FORMSET *FormSet,
IN OUT FORM_BROWSER_FORM *Form
)
{
FORM_BROWSER_STATEMENT *Statement;
EFI_IFR_QUESTION_HEADER *QuestionHdr;
LIST_ENTRY *Link;
FORMSET_STORAGE *Storage;
NAME_VALUE_NODE *NameValueNode;
BOOLEAN Find;
Statement = CreateStatement (OpCodeData, FormSet, Form);
if (Statement == NULL) {
return NULL;
}
QuestionHdr = (EFI_IFR_QUESTION_HEADER *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER));
CopyMem (&Statement->QuestionId, &QuestionHdr->QuestionId, sizeof (EFI_QUESTION_ID));
CopyMem (&Statement->VarStoreId, &QuestionHdr->VarStoreId, sizeof (EFI_VARSTORE_ID));
CopyMem (&Statement->VarStoreInfo.VarOffset, &QuestionHdr->VarStoreInfo.VarOffset, sizeof (UINT16));
Statement->QuestionFlags = QuestionHdr->Flags;
if (Statement->VarStoreId == 0) {
//
// VarStoreId of zero indicates no variable storage
//
return Statement;
}
//
// Find Storage for this Question
//
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
Storage = FORMSET_STORAGE_FROM_LINK (Link);
if (Storage->VarStoreId == Statement->VarStoreId) {
Statement->Storage = Storage->BrowserStorage;
break;
}
Link = GetNextNode (&FormSet->StorageListHead, Link);
}
ASSERT (Statement->Storage != NULL);
//
// Initialilze varname for Name/Value or EFI Variable
//
if ((Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) ||
(Statement->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE))
{
Statement->VariableName = GetToken (Statement->VarStoreInfo.VarName, FormSet->HiiHandle);
ASSERT (Statement->VariableName != NULL);
if (Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
//
// Check whether old string node already exist.
//
Find = FALSE;
if (!IsListEmpty (&Statement->Storage->NameValueListHead)) {
Link = GetFirstNode (&Statement->Storage->NameValueListHead);
while (!IsNull (&Statement->Storage->NameValueListHead, Link)) {
NameValueNode = NAME_VALUE_NODE_FROM_LINK (Link);
if (StrCmp (Statement->VariableName, NameValueNode->Name) == 0) {
Find = TRUE;
break;
}
Link = GetNextNode (&Statement->Storage->NameValueListHead, Link);
}
}
if (!Find) {
//
// Insert to Name/Value varstore list
//
NameValueNode = AllocateZeroPool (sizeof (NAME_VALUE_NODE));
ASSERT (NameValueNode != NULL);
NameValueNode->Signature = NAME_VALUE_NODE_SIGNATURE;
NameValueNode->Name = AllocateCopyPool (StrSize (Statement->VariableName), Statement->VariableName);
ASSERT (NameValueNode->Name != NULL);
NameValueNode->Value = AllocateZeroPool (0x10);
ASSERT (NameValueNode->Value != NULL);
NameValueNode->EditValue = AllocateZeroPool (0x10);
ASSERT (NameValueNode->EditValue != NULL);
InsertTailList (&Statement->Storage->NameValueListHead, &NameValueNode->Link);
}
}
}
return Statement;
}
/**
Allocate a FORM_EXPRESSION node.
@param Form The Form associated with this Expression
@param OpCode The binary opcode data.
@return Pointer to a FORM_EXPRESSION data structure.
**/
FORM_EXPRESSION *
CreateExpression (
IN OUT FORM_BROWSER_FORM *Form,
IN UINT8 *OpCode
)
{
FORM_EXPRESSION *Expression;
Expression = AllocateZeroPool (sizeof (FORM_EXPRESSION));
ASSERT (Expression != NULL);
Expression->Signature = FORM_EXPRESSION_SIGNATURE;
InitializeListHead (&Expression->OpCodeListHead);
Expression->OpCode = (EFI_IFR_OP_HEADER *)OpCode;
return Expression;
}
/**
Create ConfigHdr string for a storage.
@param FormSet Pointer of the current FormSet
@param Storage Pointer of the storage
@retval EFI_SUCCESS Initialize ConfigHdr success
**/
EFI_STATUS
InitializeConfigHdr (
IN FORM_BROWSER_FORMSET *FormSet,
IN OUT FORMSET_STORAGE *Storage
)
{
CHAR16 *Name;
if ((Storage->BrowserStorage->Type == EFI_HII_VARSTORE_BUFFER) ||
(Storage->BrowserStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER))
{
Name = Storage->BrowserStorage->Name;
} else {
Name = NULL;
}
Storage->ConfigHdr = HiiConstructConfigHdr (
&Storage->BrowserStorage->Guid,
Name,
FormSet->DriverHandle
);
if (Storage->ConfigHdr == NULL) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**
Find the global storage link base on the input storate type, name and guid.
For EFI_HII_VARSTORE_EFI_VARIABLE and EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER,
same guid + name = same storage
For EFI_HII_VARSTORE_NAME_VALUE:
same guid + HiiHandle = same storage
For EFI_HII_VARSTORE_BUFFER:
same guid + name + HiiHandle = same storage
@param StorageType Storage type.
@param StorageGuid Storage guid.
@param StorageName Storage Name.
@param HiiHandle HiiHandle for this varstore.
@return Pointer to a GLOBAL_STORAGE data structure.
**/
BROWSER_STORAGE *
FindStorageInList (
IN UINT8 StorageType,
IN EFI_GUID *StorageGuid,
IN CHAR16 *StorageName,
IN EFI_HII_HANDLE HiiHandle
)
{
LIST_ENTRY *Link;
BROWSER_STORAGE *BrowserStorage;
Link = GetFirstNode (&gBrowserStorageList);
while (!IsNull (&gBrowserStorageList, Link)) {
BrowserStorage = BROWSER_STORAGE_FROM_LINK (Link);
Link = GetNextNode (&gBrowserStorageList, Link);
if ((BrowserStorage->Type == StorageType) && CompareGuid (&BrowserStorage->Guid, StorageGuid)) {
if (StorageType == EFI_HII_VARSTORE_NAME_VALUE) {
if (BrowserStorage->HiiHandle == HiiHandle) {
return BrowserStorage;
}
continue;
}
ASSERT (StorageName != NULL);
if (StrCmp (BrowserStorage->Name, StorageName) == 0) {
if ((StorageType == EFI_HII_VARSTORE_EFI_VARIABLE) || (StorageType == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
return BrowserStorage;
} else if ((StorageType == EFI_HII_VARSTORE_BUFFER) && (BrowserStorage->HiiHandle == HiiHandle)) {
return BrowserStorage;
}
}
}
}
return NULL;
}
/**
Intialize the Global Storage.
@param BrowserStorage Pointer to the global storage.
@param StorageType Storage type.
@param OpCodeData Binary data for this opcode.
**/
VOID
IntializeBrowserStorage (
IN BROWSER_STORAGE *BrowserStorage,
IN UINT8 StorageType,
IN UINT8 *OpCodeData
)
{
switch (StorageType) {
case EFI_HII_VARSTORE_BUFFER:
CopyMem (&BrowserStorage->Guid, &((EFI_IFR_VARSTORE *)OpCodeData)->Guid, sizeof (EFI_GUID));
CopyMem (&BrowserStorage->Size, &((EFI_IFR_VARSTORE *)OpCodeData)->Size, sizeof (UINT16));
BrowserStorage->Buffer = AllocateZeroPool (BrowserStorage->Size);
BrowserStorage->EditBuffer = AllocateZeroPool (BrowserStorage->Size);
break;
case EFI_HII_VARSTORE_EFI_VARIABLE:
case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
CopyMem (&BrowserStorage->Guid, &((EFI_IFR_VARSTORE_EFI *)OpCodeData)->Guid, sizeof (EFI_GUID));
CopyMem (&BrowserStorage->Attributes, &((EFI_IFR_VARSTORE_EFI *)OpCodeData)->Attributes, sizeof (UINT32));
CopyMem (&BrowserStorage->Size, &((EFI_IFR_VARSTORE_EFI *)OpCodeData)->Size, sizeof (UINT16));
if (StorageType == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
BrowserStorage->Buffer = AllocateZeroPool (BrowserStorage->Size);
BrowserStorage->EditBuffer = AllocateZeroPool (BrowserStorage->Size);
}
break;
case EFI_HII_VARSTORE_NAME_VALUE:
CopyMem (&BrowserStorage->Guid, &((EFI_IFR_VARSTORE_NAME_VALUE *)OpCodeData)->Guid, sizeof (EFI_GUID));
InitializeListHead (&BrowserStorage->NameValueListHead);
break;
default:
break;
}
}
/**
Allocate a FORMSET_STORAGE data structure and insert to FormSet Storage List.
@param FormSet Pointer of the current FormSet
@param StorageType Storage type.
@param OpCodeData Binary data for this opcode.
@return Pointer to a FORMSET_STORAGE data structure.
**/
FORMSET_STORAGE *
CreateStorage (
IN FORM_BROWSER_FORMSET *FormSet,
IN UINT8 StorageType,
IN UINT8 *OpCodeData
)
{
FORMSET_STORAGE *Storage;
CHAR16 *UnicodeString;
UINT16 Index;
BROWSER_STORAGE *BrowserStorage;
EFI_GUID *StorageGuid;
CHAR8 *StorageName;
UnicodeString = NULL;
StorageName = NULL;
switch (StorageType) {
case EFI_HII_VARSTORE_BUFFER:
StorageGuid = (EFI_GUID *)(CHAR8 *)&((EFI_IFR_VARSTORE *)OpCodeData)->Guid;
StorageName = (CHAR8 *)((EFI_IFR_VARSTORE *)OpCodeData)->Name;
break;
case EFI_HII_VARSTORE_EFI_VARIABLE:
case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
StorageGuid = (EFI_GUID *)(CHAR8 *)&((EFI_IFR_VARSTORE_EFI *)OpCodeData)->Guid;
StorageName = (CHAR8 *)((EFI_IFR_VARSTORE_EFI *)OpCodeData)->Name;
break;
default:
ASSERT (StorageType == EFI_HII_VARSTORE_NAME_VALUE);
StorageGuid = &((EFI_IFR_VARSTORE_NAME_VALUE *)OpCodeData)->Guid;
break;
}
if (StorageType != EFI_HII_VARSTORE_NAME_VALUE) {
ASSERT (StorageName != NULL);
UnicodeString = AllocateZeroPool (AsciiStrSize (StorageName) * 2);
ASSERT (UnicodeString != NULL);
for (Index = 0; StorageName[Index] != 0; Index++) {
UnicodeString[Index] = (CHAR16)StorageName[Index];
}
}
Storage = AllocateZeroPool (sizeof (FORMSET_STORAGE));
ASSERT (Storage != NULL);
Storage->Signature = FORMSET_STORAGE_SIGNATURE;
InsertTailList (&FormSet->StorageListHead, &Storage->Link);
BrowserStorage = FindStorageInList (StorageType, StorageGuid, UnicodeString, FormSet->HiiHandle);
if (BrowserStorage == NULL) {
BrowserStorage = AllocateZeroPool (sizeof (BROWSER_STORAGE));
ASSERT (BrowserStorage != NULL);
BrowserStorage->Signature = BROWSER_STORAGE_SIGNATURE;
InsertTailList (&gBrowserStorageList, &BrowserStorage->Link);
IntializeBrowserStorage (BrowserStorage, StorageType, OpCodeData);
BrowserStorage->Type = StorageType;
if (StorageType != EFI_HII_VARSTORE_NAME_VALUE) {
BrowserStorage->Name = UnicodeString;
}
BrowserStorage->HiiHandle = FormSet->HiiHandle;
BrowserStorage->Initialized = FALSE;
}
Storage->BrowserStorage = BrowserStorage;
InitializeConfigHdr (FormSet, Storage);
Storage->ConfigRequest = AllocateCopyPool (StrSize (Storage->ConfigHdr), Storage->ConfigHdr);
Storage->SpareStrLen = 0;
return Storage;
}
/**
Get Formset_storage base on the input varstoreid info.
@param FormSet Pointer of the current FormSet.
@param VarStoreId Varstore ID info.
@return Pointer to a FORMSET_STORAGE data structure.
**/
FORMSET_STORAGE *
GetFstStgFromVarId (
IN FORM_BROWSER_FORMSET *FormSet,
IN EFI_VARSTORE_ID VarStoreId
)
{
FORMSET_STORAGE *FormsetStorage;
LIST_ENTRY *Link;
BOOLEAN Found;
Found = FALSE;
FormsetStorage = NULL;
//
// Find Formset Storage for this Question
//
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
FormsetStorage = FORMSET_STORAGE_FROM_LINK (Link);
if (FormsetStorage->VarStoreId == VarStoreId) {
Found = TRUE;
break;
}
Link = GetNextNode (&FormSet->StorageListHead, Link);
}
return Found ? FormsetStorage : NULL;
}
/**
Get Formset_storage base on the input browser storage.
More than one formsets may share the same browser storage,
this function just get the first formset storage which
share the browser storage.
@param Storage browser storage info.
@return Pointer to a FORMSET_STORAGE data structure.
**/
FORMSET_STORAGE *
GetFstStgFromBrsStg (
IN BROWSER_STORAGE *Storage
)
{
FORMSET_STORAGE *FormsetStorage;
LIST_ENTRY *Link;
LIST_ENTRY *FormsetLink;
FORM_BROWSER_FORMSET *FormSet;
BOOLEAN Found;
Found = FALSE;
FormsetStorage = NULL;
FormsetLink = GetFirstNode (&gBrowserFormSetList);
while (!IsNull (&gBrowserFormSetList, FormsetLink)) {
FormSet = FORM_BROWSER_FORMSET_FROM_LINK (FormsetLink);
FormsetLink = GetNextNode (&gBrowserFormSetList, FormsetLink);
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
FormsetStorage = FORMSET_STORAGE_FROM_LINK (Link);
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (FormsetStorage->BrowserStorage == Storage) {
Found = TRUE;
break;
}
}
if (Found) {
break;
}
}
return Found ? FormsetStorage : NULL;
}
/**
Initialize Request Element of a Question. <RequestElement> ::= '&'<BlockName> | '&'<Label>
@param FormSet Pointer of the current FormSet.
@param Question The Question to be initialized.
@param Form Pointer of the current form.
@retval EFI_SUCCESS Function success.
@retval EFI_INVALID_PARAMETER No storage associated with the Question.
**/
EFI_STATUS
InitializeRequestElement (
IN OUT FORM_BROWSER_FORMSET *FormSet,
IN OUT FORM_BROWSER_STATEMENT *Question,
IN OUT FORM_BROWSER_FORM *Form
)
{
BROWSER_STORAGE *Storage;
FORMSET_STORAGE *FormsetStorage;
UINTN StrLen;
UINTN StringSize;
CHAR16 *NewStr;
CHAR16 RequestElement[30];
LIST_ENTRY *Link;
BOOLEAN Find;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
UINTN MaxLen;
Storage = Question->Storage;
if (Storage == NULL) {
return EFI_INVALID_PARAMETER;
}
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
//
// <ConfigRequest> is unnecessary for EFI variable storage,
// GetVariable()/SetVariable() will be used to retrieve/save values
//
return EFI_SUCCESS;
}
//
// Prepare <RequestElement>
//
if ((Storage->Type == EFI_HII_VARSTORE_BUFFER) ||
(Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER))
{
StrLen = UnicodeSPrint (
RequestElement,
30 * sizeof (CHAR16),
L"&OFFSET=%04x&WIDTH=%04x",
Question->VarStoreInfo.VarOffset,
Question->StorageWidth
);
HiiToLower (RequestElement);
Question->BlockName = AllocateCopyPool ((StrLen + 1) * sizeof (CHAR16), RequestElement);
} else {
StrLen = UnicodeSPrint (RequestElement, 30 * sizeof (CHAR16), L"&%s", Question->VariableName);
}
if ((Question->Operand == EFI_IFR_PASSWORD_OP) && ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) == EFI_IFR_FLAG_CALLBACK)) {
//
// Password with CALLBACK flag is stored in encoded format,
// so don't need to append it to <ConfigRequest>
//
return EFI_SUCCESS;
}
//
// Find Formset Storage for this Question
//
FormsetStorage = GetFstStgFromVarId (FormSet, Question->VarStoreId);
ASSERT (FormsetStorage != NULL);
StringSize = (FormsetStorage->ConfigRequest != NULL) ? StrSize (FormsetStorage->ConfigRequest) : sizeof (CHAR16);
MaxLen = StringSize / sizeof (CHAR16) + FormsetStorage->SpareStrLen;
//
// Append <RequestElement> to <ConfigRequest>
//
if (StrLen > FormsetStorage->SpareStrLen) {
//
// Old String buffer is not sufficient for RequestElement, allocate a new one
//
MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL;
NewStr = AllocateZeroPool (MaxLen * sizeof (CHAR16));
ASSERT (NewStr != NULL);
if (FormsetStorage->ConfigRequest != NULL) {
CopyMem (NewStr, FormsetStorage->ConfigRequest, StringSize);
FreePool (FormsetStorage->ConfigRequest);
}
FormsetStorage->ConfigRequest = NewStr;
FormsetStorage->SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
}
StrCatS (FormsetStorage->ConfigRequest, MaxLen, RequestElement);
FormsetStorage->ElementCount++;
FormsetStorage->SpareStrLen -= StrLen;
//
// Update the Config Request info saved in the form.
//
ConfigInfo = NULL;
Find = FALSE;
Link = GetFirstNode (&Form->ConfigRequestHead);
while (!IsNull (&Form->ConfigRequestHead, Link)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
if ((ConfigInfo != NULL) && (ConfigInfo->Storage == FormsetStorage->BrowserStorage)) {
Find = TRUE;
break;
}
Link = GetNextNode (&Form->ConfigRequestHead, Link);
}
if (!Find) {
ConfigInfo = AllocateZeroPool (sizeof (FORM_BROWSER_CONFIG_REQUEST));
ASSERT (ConfigInfo != NULL);
ConfigInfo->Signature = FORM_BROWSER_CONFIG_REQUEST_SIGNATURE;
ConfigInfo->ConfigRequest = AllocateCopyPool (StrSize (FormsetStorage->ConfigHdr), FormsetStorage->ConfigHdr);
ASSERT (ConfigInfo->ConfigRequest != NULL);
ConfigInfo->SpareStrLen = 0;
ConfigInfo->Storage = FormsetStorage->BrowserStorage;
InsertTailList (&Form->ConfigRequestHead, &ConfigInfo->Link);
}
StringSize = (ConfigInfo->ConfigRequest != NULL) ? StrSize (ConfigInfo->ConfigRequest) : sizeof (CHAR16);
MaxLen = StringSize / sizeof (CHAR16) + ConfigInfo->SpareStrLen;
//
// Append <RequestElement> to <ConfigRequest>
//
if (StrLen > ConfigInfo->SpareStrLen) {
//
// Old String buffer is not sufficient for RequestElement, allocate a new one
//
MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL;
NewStr = AllocateZeroPool (MaxLen * sizeof (CHAR16));
ASSERT (NewStr != NULL);
if (ConfigInfo->ConfigRequest != NULL) {
CopyMem (NewStr, ConfigInfo->ConfigRequest, StringSize);
FreePool (ConfigInfo->ConfigRequest);
}
ConfigInfo->ConfigRequest = NewStr;
ConfigInfo->SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
}
StrCatS (ConfigInfo->ConfigRequest, MaxLen, RequestElement);
ConfigInfo->ElementCount++;
ConfigInfo->SpareStrLen -= StrLen;
return EFI_SUCCESS;
}
/**
Free resources of a Expression.
@param FormSet Pointer of the Expression
**/
VOID
DestroyExpression (
IN FORM_EXPRESSION *Expression
)
{
LIST_ENTRY *Link;
EXPRESSION_OPCODE *OpCode;
LIST_ENTRY *SubExpressionLink;
FORM_EXPRESSION *SubExpression;
while (!IsListEmpty (&Expression->OpCodeListHead)) {
Link = GetFirstNode (&Expression->OpCodeListHead);
OpCode = EXPRESSION_OPCODE_FROM_LINK (Link);
RemoveEntryList (&OpCode->Link);
if (OpCode->ValueList != NULL) {
FreePool (OpCode->ValueList);
}
if (OpCode->ValueName != NULL) {
FreePool (OpCode->ValueName);
}
if (OpCode->MapExpressionList.ForwardLink != NULL) {
while (!IsListEmpty (&OpCode->MapExpressionList)) {
SubExpressionLink = GetFirstNode (&OpCode->MapExpressionList);
SubExpression = FORM_EXPRESSION_FROM_LINK (SubExpressionLink);
RemoveEntryList (&SubExpression->Link);
DestroyExpression (SubExpression);
}
}
}
//
// Free this Expression
//
FreePool (Expression);
}
/**
Free resources of a storage.
@param Storage Pointer of the storage
**/
VOID
DestroyStorage (
IN FORMSET_STORAGE *Storage
)
{
if (Storage == NULL) {
return;
}
if (Storage->ConfigRequest != NULL) {
FreePool (Storage->ConfigRequest);
}
FreePool (Storage);
}
/**
Free resources of a Statement.
@param FormSet Pointer of the FormSet
@param Statement Pointer of the Statement
**/
VOID
DestroyStatement (
IN FORM_BROWSER_FORMSET *FormSet,
IN OUT FORM_BROWSER_STATEMENT *Statement
)
{
LIST_ENTRY *Link;
QUESTION_DEFAULT *Default;
QUESTION_OPTION *Option;
FORM_EXPRESSION *Expression;
//
// Free Default value List
//
while (!IsListEmpty (&Statement->DefaultListHead)) {
Link = GetFirstNode (&Statement->DefaultListHead);
Default = QUESTION_DEFAULT_FROM_LINK (Link);
RemoveEntryList (&Default->Link);
if (Default->Value.Buffer != NULL) {
FreePool (Default->Value.Buffer);
}
FreePool (Default);
}
//
// Free Options List
//
while (!IsListEmpty (&Statement->OptionListHead)) {
Link = GetFirstNode (&Statement->OptionListHead);
Option = QUESTION_OPTION_FROM_LINK (Link);
if (Option->SuppressExpression != NULL) {
FreePool (Option->SuppressExpression);
}
RemoveEntryList (&Option->Link);
FreePool (Option);
}
//
// Free Inconsistent List
//
while (!IsListEmpty (&Statement->InconsistentListHead)) {
Link = GetFirstNode (&Statement->InconsistentListHead);
Expression = FORM_EXPRESSION_FROM_LINK (Link);
RemoveEntryList (&Expression->Link);
DestroyExpression (Expression);
}
//
// Free NoSubmit List
//
while (!IsListEmpty (&Statement->NoSubmitListHead)) {
Link = GetFirstNode (&Statement->NoSubmitListHead);
Expression = FORM_EXPRESSION_FROM_LINK (Link);
RemoveEntryList (&Expression->Link);
DestroyExpression (Expression);
}
//
// Free WarningIf List
//
while (!IsListEmpty (&Statement->WarningListHead)) {
Link = GetFirstNode (&Statement->WarningListHead);
Expression = FORM_EXPRESSION_FROM_LINK (Link);
RemoveEntryList (&Expression->Link);
DestroyExpression (Expression);
}
if (Statement->Expression != NULL) {
FreePool (Statement->Expression);
}
if (Statement->VariableName != NULL) {
FreePool (Statement->VariableName);
}
if (Statement->BlockName != NULL) {
FreePool (Statement->BlockName);
}
if (Statement->BufferValue != NULL) {
FreePool (Statement->BufferValue);
}
if ((Statement->Operand == EFI_IFR_STRING_OP) || (Statement->Operand == EFI_IFR_PASSWORD_OP)) {
DeleteString (Statement->HiiValue.Value.string, FormSet->HiiHandle);
}
}
/**
Free resources of a Form.
@param FormSet Pointer of the FormSet
@param Form Pointer of the Form.
**/
VOID
DestroyForm (
IN FORM_BROWSER_FORMSET *FormSet,
IN OUT FORM_BROWSER_FORM *Form
)
{
LIST_ENTRY *Link;
FORM_EXPRESSION *Expression;
FORM_BROWSER_STATEMENT *Statement;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
//
// Free Form Expressions
//
while (!IsListEmpty (&Form->ExpressionListHead)) {
Link = GetFirstNode (&Form->ExpressionListHead);
Expression = FORM_EXPRESSION_FROM_LINK (Link);
RemoveEntryList (&Expression->Link);
DestroyExpression (Expression);
}
//
// Free Statements/Questions
//
while (!IsListEmpty (&Form->StatementListHead)) {
Link = GetFirstNode (&Form->StatementListHead);
Statement = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
RemoveEntryList (&Statement->Link);
DestroyStatement (FormSet, Statement);
}
//
// Free ConfigRequest string.
//
while (!IsListEmpty (&Form->ConfigRequestHead)) {
Link = GetFirstNode (&Form->ConfigRequestHead);
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
RemoveEntryList (&ConfigInfo->Link);
FreePool (ConfigInfo->ConfigRequest);
FreePool (ConfigInfo);
}
if (Form->SuppressExpression != NULL) {
FreePool (Form->SuppressExpression);
}
UiFreeMenuList (&Form->FormViewListHead);
//
// Free this Form
//
FreePool (Form);
}
/**
Free resources allocated for a FormSet.
@param FormSet Pointer of the FormSet
**/
VOID
DestroyFormSet (
IN OUT FORM_BROWSER_FORMSET *FormSet
)
{
LIST_ENTRY *Link;
FORMSET_STORAGE *Storage;
FORMSET_DEFAULTSTORE *DefaultStore;
FORM_EXPRESSION *Expression;
FORM_BROWSER_FORM *Form;
if (FormSet->IfrBinaryData == NULL) {
//
// Uninitialized FormSet
//
FreePool (FormSet);
return;
}
//
// Free IFR binary buffer
//
FreePool (FormSet->IfrBinaryData);
//
// Free FormSet Storage
//
if (FormSet->StorageListHead.ForwardLink != NULL) {
while (!IsListEmpty (&FormSet->StorageListHead)) {
Link = GetFirstNode (&FormSet->StorageListHead);
Storage = FORMSET_STORAGE_FROM_LINK (Link);
RemoveEntryList (&Storage->Link);
DestroyStorage (Storage);
}
}
//
// Free FormSet Default Store
//
if (FormSet->DefaultStoreListHead.ForwardLink != NULL) {
while (!IsListEmpty (&FormSet->DefaultStoreListHead)) {
Link = GetFirstNode (&FormSet->DefaultStoreListHead);
DefaultStore = FORMSET_DEFAULTSTORE_FROM_LINK (Link);
RemoveEntryList (&DefaultStore->Link);
FreePool (DefaultStore);
}
}
//
// Free Formset Expressions
//
while (!IsListEmpty (&FormSet->ExpressionListHead)) {
Link = GetFirstNode (&FormSet->ExpressionListHead);
Expression = FORM_EXPRESSION_FROM_LINK (Link);
RemoveEntryList (&Expression->Link);
DestroyExpression (Expression);
}
//
// Free Forms
//
if (FormSet->FormListHead.ForwardLink != NULL) {
while (!IsListEmpty (&FormSet->FormListHead)) {
Link = GetFirstNode (&FormSet->FormListHead);
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
RemoveEntryList (&Form->Link);
DestroyForm (FormSet, Form);
}
}
if (FormSet->StatementBuffer != NULL) {
FreePool (FormSet->StatementBuffer);
}
if (FormSet->ExpressionBuffer != NULL) {
FreePool (FormSet->ExpressionBuffer);
}
FreePool (FormSet);
}
/**
Tell whether this Operand is an Expression OpCode or not
@param Operand Operand of an IFR OpCode.
@retval TRUE This is an Expression OpCode.
@retval FALSE Not an Expression OpCode.
**/
BOOLEAN
IsExpressionOpCode (
IN UINT8 Operand
)
{
if (((Operand >= EFI_IFR_EQ_ID_VAL_OP) && (Operand <= EFI_IFR_NOT_OP)) ||
((Operand >= EFI_IFR_MATCH_OP) && (Operand <= EFI_IFR_SET_OP)) ||
((Operand >= EFI_IFR_EQUAL_OP) && (Operand <= EFI_IFR_SPAN_OP)) ||
(Operand == EFI_IFR_CATENATE_OP) ||
(Operand == EFI_IFR_TO_LOWER_OP) ||
(Operand == EFI_IFR_TO_UPPER_OP) ||
(Operand == EFI_IFR_MAP_OP) ||
(Operand == EFI_IFR_VERSION_OP) ||
(Operand == EFI_IFR_SECURITY_OP) ||
(Operand == EFI_IFR_MATCH2_OP))
{
return TRUE;
} else {
return FALSE;
}
}
/**
Tell whether this Operand is an Statement OpCode.
@param Operand Operand of an IFR OpCode.
@retval TRUE This is an Statement OpCode.
@retval FALSE Not an Statement OpCode.
**/
BOOLEAN
IsStatementOpCode (
IN UINT8 Operand
)
{
if ((Operand == EFI_IFR_SUBTITLE_OP) ||
(Operand == EFI_IFR_TEXT_OP) ||
(Operand == EFI_IFR_RESET_BUTTON_OP) ||
(Operand == EFI_IFR_REF_OP) ||
(Operand == EFI_IFR_ACTION_OP) ||
(Operand == EFI_IFR_NUMERIC_OP) ||
(Operand == EFI_IFR_ORDERED_LIST_OP) ||
(Operand == EFI_IFR_CHECKBOX_OP) ||
(Operand == EFI_IFR_STRING_OP) ||
(Operand == EFI_IFR_PASSWORD_OP) ||
(Operand == EFI_IFR_DATE_OP) ||
(Operand == EFI_IFR_TIME_OP) ||
(Operand == EFI_IFR_GUID_OP) ||
(Operand == EFI_IFR_ONE_OF_OP))
{
return TRUE;
} else {
return FALSE;
}
}
/**
Tell whether this Operand is an known OpCode.
@param Operand Operand of an IFR OpCode.
@retval TRUE This is an Statement OpCode.
@retval FALSE Not an Statement OpCode.
**/
BOOLEAN
IsUnKnownOpCode (
IN UINT8 Operand
)
{
return Operand > EFI_IFR_MATCH2_OP ? TRUE : FALSE;
}
/**
Calculate number of Statemens(Questions) and Expression OpCodes.
@param FormSet The FormSet to be counted.
@param NumberOfStatement Number of Statemens(Questions)
@param NumberOfExpression Number of Expression OpCodes
**/
VOID
CountOpCodes (
IN FORM_BROWSER_FORMSET *FormSet,
OUT UINTN *NumberOfStatement,
OUT UINTN *NumberOfExpression
)
{
UINTN StatementCount;
UINTN ExpressionCount;
UINT8 *OpCodeData;
UINTN Offset;
UINTN OpCodeLen;
Offset = 0;
StatementCount = 0;
ExpressionCount = 0;
while (Offset < FormSet->IfrBinaryLength) {
OpCodeData = FormSet->IfrBinaryData + Offset;
OpCodeLen = ((EFI_IFR_OP_HEADER *)OpCodeData)->Length;
Offset += OpCodeLen;
if (IsExpressionOpCode (((EFI_IFR_OP_HEADER *)OpCodeData)->OpCode)) {
ExpressionCount++;
} else {
StatementCount++;
}
}
*NumberOfStatement = StatementCount;
*NumberOfExpression = ExpressionCount;
}
/**
Parse opcodes in the formset IFR binary.
@param FormSet Pointer of the FormSet data structure.
@retval EFI_SUCCESS Opcode parse success.
@retval Other Opcode parse fail.
**/
EFI_STATUS
ParseOpCodes (
IN FORM_BROWSER_FORMSET *FormSet
)
{
EFI_STATUS Status;
FORM_BROWSER_FORM *CurrentForm;
FORM_BROWSER_STATEMENT *CurrentStatement;
FORM_BROWSER_STATEMENT *ParentStatement;
EXPRESSION_OPCODE *ExpressionOpCode;
FORM_EXPRESSION *CurrentExpression;
UINT8 Operand;
UINT8 Scope;
UINTN OpCodeOffset;
UINTN OpCodeLength;
UINT8 *OpCodeData;
UINT8 ScopeOpCode;
FORMSET_STORAGE *Storage;
FORMSET_DEFAULTSTORE *DefaultStore;
QUESTION_DEFAULT *CurrentDefault;
QUESTION_OPTION *CurrentOption;
UINT8 Width;
UINTN NumberOfStatement;
UINTN NumberOfExpression;
EFI_IMAGE_ID *ImageId;
BOOLEAN SuppressForQuestion;
BOOLEAN SuppressForOption;
UINT16 DepthOfDisable;
BOOLEAN OpCodeDisabled;
BOOLEAN SingleOpCodeExpression;
BOOLEAN InScopeDefault;
EFI_HII_VALUE *Value;
EFI_IFR_FORM_MAP_METHOD *MapMethod;
UINT8 MapScopeDepth;
LIST_ENTRY *Link;
FORMSET_STORAGE *VarStorage;
LIST_ENTRY *MapExpressionList;
EFI_VARSTORE_ID TempVarstoreId;
BOOLEAN InScopeDisable;
INTN ConditionalExprCount;
BOOLEAN InUnknownScope;
UINT8 UnknownDepth;
FORMSET_DEFAULTSTORE *PreDefaultStore;
LIST_ENTRY *DefaultLink;
BOOLEAN HaveInserted;
UINT16 TotalBits;
BOOLEAN QuestionReferBitField;
SuppressForQuestion = FALSE;
SuppressForOption = FALSE;
InScopeDisable = FALSE;
DepthOfDisable = 0;
OpCodeDisabled = FALSE;
SingleOpCodeExpression = FALSE;
InScopeDefault = FALSE;
CurrentExpression = NULL;
CurrentDefault = NULL;
CurrentOption = NULL;
ImageId = NULL;
MapMethod = NULL;
MapScopeDepth = 0;
Link = NULL;
VarStorage = NULL;
MapExpressionList = NULL;
TempVarstoreId = 0;
ConditionalExprCount = 0;
InUnknownScope = FALSE;
UnknownDepth = 0;
QuestionReferBitField = FALSE;
//
// Get the number of Statements and Expressions
//
CountOpCodes (FormSet, &NumberOfStatement, &NumberOfExpression);
mStatementIndex = 0;
mUsedQuestionId = 1;
FormSet->StatementBuffer = AllocateZeroPool (NumberOfStatement * sizeof (FORM_BROWSER_STATEMENT));
if (FormSet->StatementBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
mExpressionOpCodeIndex = 0;
FormSet->ExpressionBuffer = AllocateZeroPool (NumberOfExpression * sizeof (EXPRESSION_OPCODE));
if (FormSet->ExpressionBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
InitializeListHead (&FormSet->StatementListOSF);
InitializeListHead (&FormSet->StorageListHead);
InitializeListHead (&FormSet->SaveFailStorageListHead);
InitializeListHead (&FormSet->DefaultStoreListHead);
InitializeListHead (&FormSet->FormListHead);
InitializeListHead (&FormSet->ExpressionListHead);
ResetCurrentExpressionStack ();
ResetMapExpressionListStack ();
CurrentForm = NULL;
CurrentStatement = NULL;
ParentStatement = NULL;
ResetScopeStack ();
OpCodeOffset = 0;
while (OpCodeOffset < FormSet->IfrBinaryLength) {
OpCodeData = FormSet->IfrBinaryData + OpCodeOffset;
OpCodeLength = ((EFI_IFR_OP_HEADER *)OpCodeData)->Length;
OpCodeOffset += OpCodeLength;
Operand = ((EFI_IFR_OP_HEADER *)OpCodeData)->OpCode;
Scope = ((EFI_IFR_OP_HEADER *)OpCodeData)->Scope;
if (InUnknownScope) {
if (Operand == EFI_IFR_END_OP) {
UnknownDepth--;
if (UnknownDepth == 0) {
InUnknownScope = FALSE;
}
} else {
if (Scope != 0) {
UnknownDepth++;
}
}
continue;
}
if (IsUnKnownOpCode (Operand)) {
if (Scope != 0) {
InUnknownScope = TRUE;
UnknownDepth++;
}
continue;
}
//
// If scope bit set, push onto scope stack
//
if (Scope != 0) {
PushScope (Operand);
}
if (OpCodeDisabled) {
//
// DisableIf Expression is evaluated to be TRUE, try to find its end.
// Here only cares the EFI_IFR_DISABLE_IF and EFI_IFR_END
//
if (Operand == EFI_IFR_DISABLE_IF_OP) {
DepthOfDisable++;
} else if (Operand == EFI_IFR_END_OP) {
Status = PopScope (&ScopeOpCode);
if (EFI_ERROR (Status)) {
return Status;
}
if (ScopeOpCode == EFI_IFR_DISABLE_IF_OP) {
if (DepthOfDisable == 0) {
InScopeDisable = FALSE;
OpCodeDisabled = FALSE;
} else {
DepthOfDisable--;
}
}
}
continue;
}
if (IsExpressionOpCode (Operand)) {
ExpressionOpCode = &FormSet->ExpressionBuffer[mExpressionOpCodeIndex];
mExpressionOpCodeIndex++;
ExpressionOpCode->Signature = EXPRESSION_OPCODE_SIGNATURE;
ExpressionOpCode->Operand = Operand;
Value = &ExpressionOpCode->Value;
switch (Operand) {
case EFI_IFR_EQ_ID_VAL_OP:
CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL *)OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
CopyMem (&Value->Value.u16, &((EFI_IFR_EQ_ID_VAL *)OpCodeData)->Value, sizeof (UINT16));
break;
case EFI_IFR_EQ_ID_ID_OP:
CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_ID *)OpCodeData)->QuestionId1, sizeof (EFI_QUESTION_ID));
CopyMem (&ExpressionOpCode->QuestionId2, &((EFI_IFR_EQ_ID_ID *)OpCodeData)->QuestionId2, sizeof (EFI_QUESTION_ID));
break;
case EFI_IFR_EQ_ID_VAL_LIST_OP:
CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *)OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
CopyMem (&ExpressionOpCode->ListLength, &((EFI_IFR_EQ_ID_VAL_LIST *)OpCodeData)->ListLength, sizeof (UINT16));
ExpressionOpCode->ValueList = AllocateCopyPool (ExpressionOpCode->ListLength * sizeof (UINT16), &((EFI_IFR_EQ_ID_VAL_LIST *)OpCodeData)->ValueList);
break;
case EFI_IFR_TO_STRING_OP:
case EFI_IFR_FIND_OP:
ExpressionOpCode->Format = ((EFI_IFR_TO_STRING *)OpCodeData)->Format;
break;
case EFI_IFR_STRING_REF1_OP:
Value->Type = EFI_IFR_TYPE_STRING;
CopyMem (&Value->Value.string, &((EFI_IFR_STRING_REF1 *)OpCodeData)->StringId, sizeof (EFI_STRING_ID));
break;
case EFI_IFR_RULE_REF_OP:
ExpressionOpCode->RuleId = ((EFI_IFR_RULE_REF *)OpCodeData)->RuleId;
break;
case EFI_IFR_SPAN_OP:
ExpressionOpCode->Flags = ((EFI_IFR_SPAN *)OpCodeData)->Flags;
break;
case EFI_IFR_THIS_OP:
ASSERT (ParentStatement != NULL);
ExpressionOpCode->QuestionId = ParentStatement->QuestionId;
break;
case EFI_IFR_SECURITY_OP:
CopyMem (&ExpressionOpCode->Guid, &((EFI_IFR_SECURITY *)OpCodeData)->Permissions, sizeof (EFI_GUID));
break;
case EFI_IFR_MATCH2_OP:
CopyMem (&ExpressionOpCode->Guid, &((EFI_IFR_MATCH2 *)OpCodeData)->SyntaxType, sizeof (EFI_GUID));
break;
case EFI_IFR_GET_OP:
case EFI_IFR_SET_OP:
CopyMem (&TempVarstoreId, &((EFI_IFR_GET *)OpCodeData)->VarStoreId, sizeof (TempVarstoreId));
if (TempVarstoreId != 0) {
if (FormSet->StorageListHead.ForwardLink != NULL) {
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
VarStorage = FORMSET_STORAGE_FROM_LINK (Link);
if (VarStorage->VarStoreId == ((EFI_IFR_GET *)OpCodeData)->VarStoreId) {
ExpressionOpCode->VarStorage = VarStorage->BrowserStorage;
break;
}
Link = GetNextNode (&FormSet->StorageListHead, Link);
}
}
if (ExpressionOpCode->VarStorage == NULL) {
//
// VarStorage is not found.
//
return EFI_INVALID_PARAMETER;
}
}
ExpressionOpCode->ValueType = ((EFI_IFR_GET *)OpCodeData)->VarStoreType;
switch (ExpressionOpCode->ValueType) {
case EFI_IFR_TYPE_BOOLEAN:
case EFI_IFR_TYPE_NUM_SIZE_8:
ExpressionOpCode->ValueWidth = 1;
break;
case EFI_IFR_TYPE_NUM_SIZE_16:
case EFI_IFR_TYPE_STRING:
ExpressionOpCode->ValueWidth = 2;
break;
case EFI_IFR_TYPE_NUM_SIZE_32:
ExpressionOpCode->ValueWidth = 4;
break;
case EFI_IFR_TYPE_NUM_SIZE_64:
ExpressionOpCode->ValueWidth = 8;
break;
case EFI_IFR_TYPE_DATE:
ExpressionOpCode->ValueWidth = (UINT8)sizeof (EFI_IFR_DATE);
break;
case EFI_IFR_TYPE_TIME:
ExpressionOpCode->ValueWidth = (UINT8)sizeof (EFI_IFR_TIME);
break;
case EFI_IFR_TYPE_REF:
ExpressionOpCode->ValueWidth = (UINT8)sizeof (EFI_IFR_REF);
break;
case EFI_IFR_TYPE_OTHER:
case EFI_IFR_TYPE_UNDEFINED:
case EFI_IFR_TYPE_ACTION:
case EFI_IFR_TYPE_BUFFER:
default:
//
// Invalid value type for Get/Set opcode.
//
return EFI_INVALID_PARAMETER;
}
CopyMem (&ExpressionOpCode->VarStoreInfo.VarName, &((EFI_IFR_GET *)OpCodeData)->VarStoreInfo.VarName, sizeof (EFI_STRING_ID));
CopyMem (&ExpressionOpCode->VarStoreInfo.VarOffset, &((EFI_IFR_GET *)OpCodeData)->VarStoreInfo.VarOffset, sizeof (UINT16));
if ((ExpressionOpCode->VarStorage != NULL) &&
((ExpressionOpCode->VarStorage->Type == EFI_HII_VARSTORE_NAME_VALUE) ||
(ExpressionOpCode->VarStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)))
{
ExpressionOpCode->ValueName = GetToken (ExpressionOpCode->VarStoreInfo.VarName, FormSet->HiiHandle);
if (ExpressionOpCode->ValueName == NULL) {
//
// String ID is invalid.
//
return EFI_INVALID_PARAMETER;
}
}
break;
case EFI_IFR_QUESTION_REF1_OP:
CopyMem (&ExpressionOpCode->QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *)OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
break;
case EFI_IFR_QUESTION_REF3_OP:
if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_2)) {
CopyMem (&ExpressionOpCode->DevicePath, &((EFI_IFR_QUESTION_REF3_2 *)OpCodeData)->DevicePath, sizeof (EFI_STRING_ID));
if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_3)) {
CopyMem (&ExpressionOpCode->Guid, &((EFI_IFR_QUESTION_REF3_3 *)OpCodeData)->Guid, sizeof (EFI_GUID));
}
}
break;
//
// constant
//
case EFI_IFR_TRUE_OP:
Value->Type = EFI_IFR_TYPE_BOOLEAN;
Value->Value.b = TRUE;
break;
case EFI_IFR_FALSE_OP:
Value->Type = EFI_IFR_TYPE_BOOLEAN;
Value->Value.b = FALSE;
break;
case EFI_IFR_ONE_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
Value->Value.u8 = 1;
break;
case EFI_IFR_ZERO_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
Value->Value.u8 = 0;
break;
case EFI_IFR_ONES_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
Value->Value.u64 = 0xffffffffffffffffULL;
break;
case EFI_IFR_UINT8_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
Value->Value.u8 = ((EFI_IFR_UINT8 *)OpCodeData)->Value;
break;
case EFI_IFR_UINT16_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
CopyMem (&Value->Value.u16, &((EFI_IFR_UINT16 *)OpCodeData)->Value, sizeof (UINT16));
break;
case EFI_IFR_UINT32_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_32;
CopyMem (&Value->Value.u32, &((EFI_IFR_UINT32 *)OpCodeData)->Value, sizeof (UINT32));
break;
case EFI_IFR_UINT64_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
CopyMem (&Value->Value.u64, &((EFI_IFR_UINT64 *)OpCodeData)->Value, sizeof (UINT64));
break;
case EFI_IFR_UNDEFINED_OP:
Value->Type = EFI_IFR_TYPE_UNDEFINED;
break;
case EFI_IFR_VERSION_OP:
Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
Value->Value.u16 = EFI_IFR_SPECIFICATION_VERSION;
break;
default:
break;
}
//
// Create sub expression nested in MAP opcode
//
if ((CurrentExpression == NULL) && (MapScopeDepth > 0)) {
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
ASSERT (MapExpressionList != NULL);
InsertTailList (MapExpressionList, &CurrentExpression->Link);
if (Scope == 0) {
SingleOpCodeExpression = TRUE;
}
}
ASSERT (CurrentExpression != NULL);
InsertTailList (&CurrentExpression->OpCodeListHead, &ExpressionOpCode->Link);
if (Operand == EFI_IFR_MAP_OP) {
//
// Store current Map Expression List.
//
if (MapExpressionList != NULL) {
PushMapExpressionList (MapExpressionList);
}
//
// Initialize new Map Expression List.
//
MapExpressionList = &ExpressionOpCode->MapExpressionList;
InitializeListHead (MapExpressionList);
//
// Store current expression.
//
PushCurrentExpression (CurrentExpression);
CurrentExpression = NULL;
MapScopeDepth++;
} else if (SingleOpCodeExpression) {
//
// There are two cases to indicate the end of an Expression:
// for single OpCode expression: one Expression OpCode
// for expression consists of more than one OpCode: EFI_IFR_END
//
SingleOpCodeExpression = FALSE;
if (InScopeDisable && (CurrentForm == NULL)) {
//
// This is DisableIf expression for Form, it should be a constant expression
//
Status = EvaluateExpression (FormSet, CurrentForm, CurrentExpression);
if (EFI_ERROR (Status)) {
return Status;
}
OpCodeDisabled = IsTrue (&CurrentExpression->Result);
}
CurrentExpression = NULL;
}
continue;
}
//
// Parse the Opcode
//
switch (Operand) {
case EFI_IFR_FORM_SET_OP:
//
// Check the formset GUID
//
if (CompareMem (&FormSet->Guid, &((EFI_IFR_FORM_SET *)OpCodeData)->Guid, sizeof (EFI_GUID)) != 0) {
return EFI_INVALID_PARAMETER;
}
CopyMem (&FormSet->FormSetTitle, &((EFI_IFR_FORM_SET *)OpCodeData)->FormSetTitle, sizeof (EFI_STRING_ID));
CopyMem (&FormSet->Help, &((EFI_IFR_FORM_SET *)OpCodeData)->Help, sizeof (EFI_STRING_ID));
FormSet->OpCode = (EFI_IFR_OP_HEADER *)OpCodeData;// save the opcode address of formset
if (OpCodeLength > OFFSET_OF (EFI_IFR_FORM_SET, Flags)) {
//
// The formset OpCode contains ClassGuid
//
FormSet->NumberOfClassGuid = (UINT8)(((EFI_IFR_FORM_SET *)OpCodeData)->Flags & 0x3);
CopyMem (FormSet->ClassGuid, OpCodeData + sizeof (EFI_IFR_FORM_SET), FormSet->NumberOfClassGuid * sizeof (EFI_GUID));
}
break;
case EFI_IFR_FORM_OP:
//
// Create a new Form for this FormSet
//
CurrentForm = AllocateZeroPool (sizeof (FORM_BROWSER_FORM));
ASSERT (CurrentForm != NULL);
CurrentForm->Signature = FORM_BROWSER_FORM_SIGNATURE;
InitializeListHead (&CurrentForm->ExpressionListHead);
InitializeListHead (&CurrentForm->StatementListHead);
InitializeListHead (&CurrentForm->ConfigRequestHead);
InitializeListHead (&CurrentForm->FormViewListHead);
CurrentForm->FormType = STANDARD_MAP_FORM_TYPE;
CopyMem (&CurrentForm->FormId, &((EFI_IFR_FORM *)OpCodeData)->FormId, sizeof (UINT16));
CopyMem (&CurrentForm->FormTitle, &((EFI_IFR_FORM *)OpCodeData)->FormTitle, sizeof (EFI_STRING_ID));
ConditionalExprCount = GetConditionalExpressionCount (ExpressForm);
if ( ConditionalExprCount > 0) {
//
// Form is inside of suppressif
//
CurrentForm->SuppressExpression = (FORM_EXPRESSION_LIST *)AllocatePool (
(UINTN)(sizeof (FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof (FORM_EXPRESSION *)))
);
ASSERT (CurrentForm->SuppressExpression != NULL);
CurrentForm->SuppressExpression->Count = (UINTN)ConditionalExprCount;
CurrentForm->SuppressExpression->Signature = FORM_EXPRESSION_LIST_SIGNATURE;
CopyMem (CurrentForm->SuppressExpression->Expression, GetConditionalExpressionList (ExpressForm), (UINTN)(sizeof (FORM_EXPRESSION *) * ConditionalExprCount));
}
if (Scope != 0) {
//
// Enter scope of a Form, suppressif will be used for Question or Option
//
SuppressForQuestion = TRUE;
}
//
// Insert into Form list of this FormSet
//
InsertTailList (&FormSet->FormListHead, &CurrentForm->Link);
break;
case EFI_IFR_FORM_MAP_OP:
//
// Create a new Form for this FormSet
//
CurrentForm = AllocateZeroPool (sizeof (FORM_BROWSER_FORM));
ASSERT (CurrentForm != NULL);
CurrentForm->Signature = FORM_BROWSER_FORM_SIGNATURE;
InitializeListHead (&CurrentForm->ExpressionListHead);
InitializeListHead (&CurrentForm->StatementListHead);
InitializeListHead (&CurrentForm->ConfigRequestHead);
InitializeListHead (&CurrentForm->FormViewListHead);
CopyMem (&CurrentForm->FormId, &((EFI_IFR_FORM *)OpCodeData)->FormId, sizeof (UINT16));
MapMethod = (EFI_IFR_FORM_MAP_METHOD *)(OpCodeData + sizeof (EFI_IFR_FORM_MAP));
//
// FormMap Form must contain at least one Map Method.
//
if (((EFI_IFR_OP_HEADER *)OpCodeData)->Length < ((UINTN)(UINT8 *)(MapMethod + 1) - (UINTN)OpCodeData)) {
return EFI_INVALID_PARAMETER;
}
//
// Try to find the standard form map method.
//
while (((UINTN)(UINT8 *)MapMethod - (UINTN)OpCodeData) < ((EFI_IFR_OP_HEADER *)OpCodeData)->Length) {
if (CompareGuid ((EFI_GUID *)(VOID *)&MapMethod->MethodIdentifier, &gEfiHiiStandardFormGuid)) {
CopyMem (&CurrentForm->FormTitle, &MapMethod->MethodTitle, sizeof (EFI_STRING_ID));
CurrentForm->FormType = STANDARD_MAP_FORM_TYPE;
break;
}
MapMethod++;
}
//
// If the standard form map method is not found, the first map method title will be used.
//
if (CurrentForm->FormTitle == 0) {
MapMethod = (EFI_IFR_FORM_MAP_METHOD *)(OpCodeData + sizeof (EFI_IFR_FORM_MAP));
CopyMem (&CurrentForm->FormTitle, &MapMethod->MethodTitle, sizeof (EFI_STRING_ID));
}
ConditionalExprCount = GetConditionalExpressionCount (ExpressForm);
if ( ConditionalExprCount > 0) {
//
// Form is inside of suppressif
//
CurrentForm->SuppressExpression = (FORM_EXPRESSION_LIST *)AllocatePool (
(UINTN)(sizeof (FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof (FORM_EXPRESSION *)))
);
ASSERT (CurrentForm->SuppressExpression != NULL);
CurrentForm->SuppressExpression->Count = (UINTN)ConditionalExprCount;
CurrentForm->SuppressExpression->Signature = FORM_EXPRESSION_LIST_SIGNATURE;
CopyMem (CurrentForm->SuppressExpression->Expression, GetConditionalExpressionList (ExpressForm), (UINTN)(sizeof (FORM_EXPRESSION *) * ConditionalExprCount));
}
if (Scope != 0) {
//
// Enter scope of a Form, suppressif will be used for Question or Option
//
SuppressForQuestion = TRUE;
}
//
// Insert into Form list of this FormSet
//
InsertTailList (&FormSet->FormListHead, &CurrentForm->Link);
break;
//
// Storage
//
case EFI_IFR_VARSTORE_OP:
//
// Create a buffer Storage for this FormSet
//
Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_BUFFER, OpCodeData);
CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE *)OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
break;
case EFI_IFR_VARSTORE_NAME_VALUE_OP:
//
// Create a name/value Storage for this FormSet
//
Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_NAME_VALUE, OpCodeData);
CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_NAME_VALUE *)OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
break;
case EFI_IFR_VARSTORE_EFI_OP:
//
// Create a EFI variable Storage for this FormSet
//
if (OpCodeLength < sizeof (EFI_IFR_VARSTORE_EFI)) {
//
// Create efi varstore with format follow UEFI spec before 2.3.1.
//
Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_EFI_VARIABLE, OpCodeData);
} else {
//
// Create efi varstore with format follow UEFI spec 2.3.1 and later.
//
Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER, OpCodeData);
}
CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_EFI *)OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
break;
//
// DefaultStore
//
case EFI_IFR_DEFAULTSTORE_OP:
HaveInserted = FALSE;
DefaultStore = AllocateZeroPool (sizeof (FORMSET_DEFAULTSTORE));
ASSERT (DefaultStore != NULL);
DefaultStore->Signature = FORMSET_DEFAULTSTORE_SIGNATURE;
CopyMem (&DefaultStore->DefaultId, &((EFI_IFR_DEFAULTSTORE *)OpCodeData)->DefaultId, sizeof (UINT16));
CopyMem (&DefaultStore->DefaultName, &((EFI_IFR_DEFAULTSTORE *)OpCodeData)->DefaultName, sizeof (EFI_STRING_ID));
//
// Insert it to the DefaultStore list of this Formset with ascending order.
//
if (!IsListEmpty (&FormSet->DefaultStoreListHead)) {
DefaultLink = GetFirstNode (&FormSet->DefaultStoreListHead);
while (!IsNull (&FormSet->DefaultStoreListHead, DefaultLink)) {
PreDefaultStore = FORMSET_DEFAULTSTORE_FROM_LINK (DefaultLink);
DefaultLink = GetNextNode (&FormSet->DefaultStoreListHead, DefaultLink);
if (DefaultStore->DefaultId < PreDefaultStore->DefaultId) {
InsertTailList (&PreDefaultStore->Link, &DefaultStore->Link);
HaveInserted = TRUE;
break;
}
}
}
if (!HaveInserted) {
InsertTailList (&FormSet->DefaultStoreListHead, &DefaultStore->Link);
}
break;
//
// Statements
//
case EFI_IFR_SUBTITLE_OP:
CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->Flags = ((EFI_IFR_SUBTITLE *)OpCodeData)->Flags;
CurrentStatement->FakeQuestionId = mUsedQuestionId++;
break;
case EFI_IFR_TEXT_OP:
CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->FakeQuestionId = mUsedQuestionId++;
CopyMem (&CurrentStatement->TextTwo, &((EFI_IFR_TEXT *)OpCodeData)->TextTwo, sizeof (EFI_STRING_ID));
break;
case EFI_IFR_RESET_BUTTON_OP:
CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->FakeQuestionId = mUsedQuestionId++;
CopyMem (&CurrentStatement->DefaultId, &((EFI_IFR_RESET_BUTTON *)OpCodeData)->DefaultId, sizeof (EFI_DEFAULT_ID));
break;
//
// Questions
//
case EFI_IFR_ACTION_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_ACTION;
if (OpCodeLength == sizeof (EFI_IFR_ACTION_1)) {
//
// No QuestionConfig present, so no configuration string will be processed
//
CurrentStatement->QuestionConfig = 0;
} else {
CopyMem (&CurrentStatement->QuestionConfig, &((EFI_IFR_ACTION *)OpCodeData)->QuestionConfig, sizeof (EFI_STRING_ID));
}
break;
case EFI_IFR_REF_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
Value = &CurrentStatement->HiiValue;
Value->Type = EFI_IFR_TYPE_REF;
if (OpCodeLength >= sizeof (EFI_IFR_REF)) {
CopyMem (&Value->Value.ref.FormId, &((EFI_IFR_REF *)OpCodeData)->FormId, sizeof (EFI_FORM_ID));
if (OpCodeLength >= sizeof (EFI_IFR_REF2)) {
CopyMem (&Value->Value.ref.QuestionId, &((EFI_IFR_REF2 *)OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
if (OpCodeLength >= sizeof (EFI_IFR_REF3)) {
CopyMem (&Value->Value.ref.FormSetGuid, &((EFI_IFR_REF3 *)OpCodeData)->FormSetId, sizeof (EFI_GUID));
if (OpCodeLength >= sizeof (EFI_IFR_REF4)) {
CopyMem (&Value->Value.ref.DevicePath, &((EFI_IFR_REF4 *)OpCodeData)->DevicePath, sizeof (EFI_STRING_ID));
}
}
}
}
CurrentStatement->StorageWidth = (UINT16)sizeof (EFI_HII_REF);
InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
break;
case EFI_IFR_ONE_OF_OP:
case EFI_IFR_NUMERIC_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->Flags = ((EFI_IFR_ONE_OF *)OpCodeData)->Flags;
Value = &CurrentStatement->HiiValue;
if (QuestionReferBitField) {
//
// Get the bit var store info (bit/byte offset, bit/byte offset)
//
CurrentStatement->QuestionReferToBitField = TRUE;
CurrentStatement->BitStorageWidth = CurrentStatement->Flags & EDKII_IFR_NUMERIC_SIZE_BIT;
CurrentStatement->BitVarOffset = CurrentStatement->VarStoreInfo.VarOffset;
CurrentStatement->VarStoreInfo.VarOffset = CurrentStatement->BitVarOffset / 8;
TotalBits = CurrentStatement->BitVarOffset % 8 + CurrentStatement->BitStorageWidth;
CurrentStatement->StorageWidth = (TotalBits % 8 == 0 ? TotalBits / 8 : TotalBits / 8 + 1);
//
// Get the Minimum/Maximum/Step value(Note: bit field type has been stored as UINT32 type)
//
CurrentStatement->Minimum = ((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.MinValue;
CurrentStatement->Maximum = ((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.MaxValue;
CurrentStatement->Step = ((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.Step;
//
// Update the Flag and type of Minimum/Maximum/Step according to the actual width of bit field,
// in order to make Browser handle these question with bit varstore correctly.
//
((EFI_IFR_NUMERIC *)OpCodeData)->Flags &= EDKII_IFR_DISPLAY_BIT;
((EFI_IFR_NUMERIC *)OpCodeData)->Flags >>= 2;
switch (CurrentStatement->StorageWidth) {
case 1:
((EFI_IFR_NUMERIC *)OpCodeData)->Flags |= EFI_IFR_TYPE_NUM_SIZE_8;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u8.MinValue = (UINT8)CurrentStatement->Minimum;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u8.MaxValue = (UINT8)CurrentStatement->Maximum;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u8.Step = (UINT8)CurrentStatement->Step;
Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
break;
case 2:
((EFI_IFR_NUMERIC *)OpCodeData)->Flags |= EFI_IFR_TYPE_NUM_SIZE_16;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u16.MinValue = (UINT16)CurrentStatement->Minimum;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u16.MaxValue = (UINT16)CurrentStatement->Maximum;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u16.Step = (UINT16)CurrentStatement->Step;
Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
break;
case 3:
case 4:
((EFI_IFR_NUMERIC *)OpCodeData)->Flags |= EFI_IFR_TYPE_NUM_SIZE_32;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.MinValue = (UINT32)CurrentStatement->Minimum;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.MaxValue = (UINT32)CurrentStatement->Maximum;
((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.Step = (UINT32)CurrentStatement->Step;
Value->Type = EFI_IFR_TYPE_NUM_SIZE_32;
break;
default:
break;
}
} else {
switch (CurrentStatement->Flags & EFI_IFR_NUMERIC_SIZE) {
case EFI_IFR_NUMERIC_SIZE_1:
CurrentStatement->Minimum = ((EFI_IFR_NUMERIC *)OpCodeData)->data.u8.MinValue;
CurrentStatement->Maximum = ((EFI_IFR_NUMERIC *)OpCodeData)->data.u8.MaxValue;
CurrentStatement->Step = ((EFI_IFR_NUMERIC *)OpCodeData)->data.u8.Step;
CurrentStatement->StorageWidth = (UINT16)sizeof (UINT8);
Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
break;
case EFI_IFR_NUMERIC_SIZE_2:
CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u16.MinValue, sizeof (UINT16));
CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u16.MaxValue, sizeof (UINT16));
CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u16.Step, sizeof (UINT16));
CurrentStatement->StorageWidth = (UINT16)sizeof (UINT16);
Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
break;
case EFI_IFR_NUMERIC_SIZE_4:
CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.MinValue, sizeof (UINT32));
CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.MaxValue, sizeof (UINT32));
CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u32.Step, sizeof (UINT32));
CurrentStatement->StorageWidth = (UINT16)sizeof (UINT32);
Value->Type = EFI_IFR_TYPE_NUM_SIZE_32;
break;
case EFI_IFR_NUMERIC_SIZE_8:
CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u64.MinValue, sizeof (UINT64));
CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u64.MaxValue, sizeof (UINT64));
CopyMem (&CurrentStatement->Step, &((EFI_IFR_NUMERIC *)OpCodeData)->data.u64.Step, sizeof (UINT64));
CurrentStatement->StorageWidth = (UINT16)sizeof (UINT64);
Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
break;
default:
break;
}
}
InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
if ((Operand == EFI_IFR_ONE_OF_OP) && (Scope != 0)) {
SuppressForOption = TRUE;
}
break;
case EFI_IFR_ORDERED_LIST_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->Flags = ((EFI_IFR_ORDERED_LIST *)OpCodeData)->Flags;
CurrentStatement->MaxContainers = ((EFI_IFR_ORDERED_LIST *)OpCodeData)->MaxContainers;
CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_BUFFER;
CurrentStatement->BufferValue = NULL;
if (Scope != 0) {
SuppressForOption = TRUE;
}
break;
case EFI_IFR_CHECKBOX_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->Flags = ((EFI_IFR_CHECKBOX *)OpCodeData)->Flags;
CurrentStatement->StorageWidth = (UINT16)sizeof (BOOLEAN);
CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_BOOLEAN;
if (QuestionReferBitField) {
//
// Get the bit var store info (bit/byte offset, bit/byte offset)
//
CurrentStatement->QuestionReferToBitField = TRUE;
CurrentStatement->BitStorageWidth = 1;
CurrentStatement->BitVarOffset = CurrentStatement->VarStoreInfo.VarOffset;
CurrentStatement->VarStoreInfo.VarOffset = CurrentStatement->BitVarOffset / 8;
TotalBits = CurrentStatement->BitVarOffset % 8 + CurrentStatement->BitStorageWidth;
CurrentStatement->StorageWidth = (TotalBits % 8 == 0 ? TotalBits / 8 : TotalBits / 8 + 1);
}
InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
break;
case EFI_IFR_STRING_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
//
// MinSize is the minimum number of characters that can be accepted for this opcode,
// MaxSize is the maximum number of characters that can be accepted for this opcode.
// The characters are stored as Unicode, so the storage width should multiply 2.
//
CurrentStatement->Minimum = ((EFI_IFR_STRING *)OpCodeData)->MinSize;
CurrentStatement->Maximum = ((EFI_IFR_STRING *)OpCodeData)->MaxSize;
CurrentStatement->StorageWidth = (UINT16)((UINTN)CurrentStatement->Maximum * sizeof (CHAR16));
CurrentStatement->Flags = ((EFI_IFR_STRING *)OpCodeData)->Flags;
CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_STRING;
CurrentStatement->BufferValue = AllocateZeroPool (CurrentStatement->StorageWidth + sizeof (CHAR16));
CurrentStatement->HiiValue.Value.string = NewString ((CHAR16 *)CurrentStatement->BufferValue, FormSet->HiiHandle);
InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
break;
case EFI_IFR_PASSWORD_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
//
// MinSize is the minimum number of characters that can be accepted for this opcode,
// MaxSize is the maximum number of characters that can be accepted for this opcode.
// The characters are stored as Unicode, so the storage width should multiply 2.
//
CopyMem (&CurrentStatement->Minimum, &((EFI_IFR_PASSWORD *)OpCodeData)->MinSize, sizeof (UINT16));
CopyMem (&CurrentStatement->Maximum, &((EFI_IFR_PASSWORD *)OpCodeData)->MaxSize, sizeof (UINT16));
CurrentStatement->StorageWidth = (UINT16)((UINTN)CurrentStatement->Maximum * sizeof (CHAR16));
CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_STRING;
CurrentStatement->BufferValue = AllocateZeroPool ((CurrentStatement->StorageWidth + sizeof (CHAR16)));
CurrentStatement->HiiValue.Value.string = NewString ((CHAR16 *)CurrentStatement->BufferValue, FormSet->HiiHandle);
InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
break;
case EFI_IFR_DATE_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->Flags = ((EFI_IFR_DATE *)OpCodeData)->Flags;
CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_DATE;
if ((CurrentStatement->Flags & EFI_QF_DATE_STORAGE) == QF_DATE_STORAGE_NORMAL) {
CurrentStatement->StorageWidth = (UINT16)sizeof (EFI_HII_DATE);
InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
} else {
//
// Don't assign storage for RTC type of date/time
//
CurrentStatement->Storage = NULL;
CurrentStatement->StorageWidth = 0;
}
break;
case EFI_IFR_TIME_OP:
CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
ASSERT (CurrentStatement != NULL);
CurrentStatement->Flags = ((EFI_IFR_TIME *)OpCodeData)->Flags;
CurrentStatement->HiiValue.Type = EFI_IFR_TYPE_TIME;
if ((CurrentStatement->Flags & QF_TIME_STORAGE) == QF_TIME_STORAGE_NORMAL) {
CurrentStatement->StorageWidth = (UINT16)sizeof (EFI_HII_TIME);
InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
} else {
//
// Don't assign storage for RTC type of date/time
//
CurrentStatement->Storage = NULL;
CurrentStatement->StorageWidth = 0;
}
break;
//
// Default
//
case EFI_IFR_DEFAULT_OP:
//
// EFI_IFR_DEFAULT appear in scope of a Question,
// It creates a default value for the current question.
// A Question may have more than one Default value which have different default types.
//
CurrentDefault = AllocateZeroPool (sizeof (QUESTION_DEFAULT));
ASSERT (CurrentDefault != NULL);
CurrentDefault->Signature = QUESTION_DEFAULT_SIGNATURE;
CurrentDefault->Value.Type = ((EFI_IFR_DEFAULT *)OpCodeData)->Type;
CopyMem (&CurrentDefault->DefaultId, &((EFI_IFR_DEFAULT *)OpCodeData)->DefaultId, sizeof (UINT16));
if (CurrentDefault->Value.Type == EFI_IFR_TYPE_BUFFER) {
CurrentDefault->Value.BufferLen = (UINT16)(OpCodeLength - OFFSET_OF (EFI_IFR_DEFAULT, Value));
CurrentDefault->Value.Buffer = AllocateCopyPool (CurrentDefault->Value.BufferLen, &((EFI_IFR_DEFAULT *)OpCodeData)->Value);
ASSERT (CurrentDefault->Value.Buffer != NULL);
} else {
CopyMem (&CurrentDefault->Value.Value, &((EFI_IFR_DEFAULT *)OpCodeData)->Value, OpCodeLength - OFFSET_OF (EFI_IFR_DEFAULT, Value));
ExtendValueToU64 (&CurrentDefault->Value);
}
//
// Insert to Default Value list of current Question
//
InsertTailList (&ParentStatement->DefaultListHead, &CurrentDefault->Link);
if (Scope != 0) {
InScopeDefault = TRUE;
}
break;
//
// Option
//
case EFI_IFR_ONE_OF_OPTION_OP:
ASSERT (ParentStatement != NULL);
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)) {
//
// It's keep the default value for ordered list opcode.
//
CurrentDefault = AllocateZeroPool (sizeof (QUESTION_DEFAULT));
ASSERT (CurrentDefault != NULL);
CurrentDefault->Signature = QUESTION_DEFAULT_SIGNATURE;
CurrentDefault->Value.Type = EFI_IFR_TYPE_BUFFER;
if ((((EFI_IFR_ONE_OF_OPTION *)OpCodeData)->Flags & EFI_IFR_OPTION_DEFAULT) != 0) {
CurrentDefault->DefaultId = EFI_HII_DEFAULT_CLASS_STANDARD;
} else {
CurrentDefault->DefaultId = EFI_HII_DEFAULT_CLASS_MANUFACTURING;
}
CurrentDefault->Value.BufferLen = (UINT16)(OpCodeLength - OFFSET_OF (EFI_IFR_ONE_OF_OPTION, Value));
CurrentDefault->Value.Buffer = AllocateCopyPool (CurrentDefault->Value.BufferLen, &((EFI_IFR_ONE_OF_OPTION *)OpCodeData)->Value);
ASSERT (CurrentDefault->Value.Buffer != NULL);
//
// Insert to Default Value list of current Question
//
InsertTailList (&ParentStatement->DefaultListHead, &CurrentDefault->Link);
break;
}
//
// EFI_IFR_ONE_OF_OPTION appear in scope of a Question.
// It create a selection for use in current Question.
//
CurrentOption = AllocateZeroPool (sizeof (QUESTION_OPTION));
ASSERT (CurrentOption != NULL);
CurrentOption->Signature = QUESTION_OPTION_SIGNATURE;
CurrentOption->OpCode = (EFI_IFR_ONE_OF_OPTION *)OpCodeData;
CurrentOption->Flags = ((EFI_IFR_ONE_OF_OPTION *)OpCodeData)->Flags;
CurrentOption->Value.Type = ((EFI_IFR_ONE_OF_OPTION *)OpCodeData)->Type;
CopyMem (&CurrentOption->Text, &((EFI_IFR_ONE_OF_OPTION *)OpCodeData)->Option, sizeof (EFI_STRING_ID));
CopyMem (&CurrentOption->Value.Value, &((EFI_IFR_ONE_OF_OPTION *)OpCodeData)->Value, OpCodeLength - OFFSET_OF (EFI_IFR_ONE_OF_OPTION, Value));
ExtendValueToU64 (&CurrentOption->Value);
ConditionalExprCount = GetConditionalExpressionCount (ExpressOption);
if ( ConditionalExprCount > 0) {
//
// Form is inside of suppressif
//
CurrentOption->SuppressExpression = (FORM_EXPRESSION_LIST *)AllocatePool (
(UINTN)(sizeof (FORM_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof (FORM_EXPRESSION *)))
);
ASSERT (CurrentOption->SuppressExpression != NULL);
CurrentOption->SuppressExpression->Count = (UINTN)ConditionalExprCount;
CurrentOption->SuppressExpression->Signature = FORM_EXPRESSION_LIST_SIGNATURE;
CopyMem (CurrentOption->SuppressExpression->Expression, GetConditionalExpressionList (ExpressOption), (UINTN)(sizeof (FORM_EXPRESSION *) * ConditionalExprCount));
}
//
// Insert to Option list of current Question
//
InsertTailList (&ParentStatement->OptionListHead, &CurrentOption->Link);
//
// Now we know the Storage width of nested Ordered List
//
if ((ParentStatement->Operand == EFI_IFR_ORDERED_LIST_OP) && (ParentStatement->BufferValue == NULL)) {
Width = 1;
switch (CurrentOption->Value.Type) {
case EFI_IFR_TYPE_NUM_SIZE_8:
Width = 1;
break;
case EFI_IFR_TYPE_NUM_SIZE_16:
Width = 2;
break;
case EFI_IFR_TYPE_NUM_SIZE_32:
Width = 4;
break;
case EFI_IFR_TYPE_NUM_SIZE_64:
Width = 8;
break;
default:
//
// Invalid type for Ordered List
//
break;
}
ParentStatement->StorageWidth = (UINT16)(ParentStatement->MaxContainers * Width);
ParentStatement->BufferValue = AllocateZeroPool (ParentStatement->StorageWidth);
ParentStatement->ValueType = CurrentOption->Value.Type;
if (ParentStatement->HiiValue.Type == EFI_IFR_TYPE_BUFFER) {
ParentStatement->HiiValue.Buffer = ParentStatement->BufferValue;
ParentStatement->HiiValue.BufferLen = ParentStatement->StorageWidth;
}
InitializeRequestElement (FormSet, ParentStatement, CurrentForm);
}
break;
//
// Conditional
//
case EFI_IFR_NO_SUBMIT_IF_OP:
case EFI_IFR_INCONSISTENT_IF_OP:
//
// Create an Expression node
//
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CopyMem (&CurrentExpression->Error, &((EFI_IFR_INCONSISTENT_IF *)OpCodeData)->Error, sizeof (EFI_STRING_ID));
if (Operand == EFI_IFR_NO_SUBMIT_IF_OP) {
CurrentExpression->Type = EFI_HII_EXPRESSION_NO_SUBMIT_IF;
InsertTailList (&ParentStatement->NoSubmitListHead, &CurrentExpression->Link);
} else {
CurrentExpression->Type = EFI_HII_EXPRESSION_INCONSISTENT_IF;
InsertTailList (&ParentStatement->InconsistentListHead, &CurrentExpression->Link);
}
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
case EFI_IFR_WARNING_IF_OP:
//
// Create an Expression node
//
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CopyMem (&CurrentExpression->Error, &((EFI_IFR_WARNING_IF *)OpCodeData)->Warning, sizeof (EFI_STRING_ID));
CurrentExpression->TimeOut = ((EFI_IFR_WARNING_IF *)OpCodeData)->TimeOut;
CurrentExpression->Type = EFI_HII_EXPRESSION_WARNING_IF;
InsertTailList (&ParentStatement->WarningListHead, &CurrentExpression->Link);
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
case EFI_IFR_SUPPRESS_IF_OP:
//
// Question and Option will appear in scope of this OpCode
//
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CurrentExpression->Type = EFI_HII_EXPRESSION_SUPPRESS_IF;
if (CurrentForm == NULL) {
InsertTailList (&FormSet->ExpressionListHead, &CurrentExpression->Link);
} else {
InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
}
if (SuppressForOption) {
PushConditionalExpression (CurrentExpression, ExpressOption);
} else if (SuppressForQuestion) {
PushConditionalExpression (CurrentExpression, ExpressStatement);
} else {
PushConditionalExpression (CurrentExpression, ExpressForm);
}
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
case EFI_IFR_GRAY_OUT_IF_OP:
//
// Questions will appear in scope of this OpCode
//
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CurrentExpression->Type = EFI_HII_EXPRESSION_GRAY_OUT_IF;
InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
PushConditionalExpression (CurrentExpression, ExpressStatement);
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
case EFI_IFR_DISABLE_IF_OP:
//
// The DisableIf expression should only rely on constant, so it could be
// evaluated at initialization and it will not be queued
//
CurrentExpression = AllocateZeroPool (sizeof (FORM_EXPRESSION));
ASSERT (CurrentExpression != NULL);
CurrentExpression->Signature = FORM_EXPRESSION_SIGNATURE;
CurrentExpression->Type = EFI_HII_EXPRESSION_DISABLE_IF;
InitializeListHead (&CurrentExpression->OpCodeListHead);
if (CurrentForm != NULL) {
//
// This is DisableIf for Question, enqueue it to Form expression list
//
InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
PushConditionalExpression (CurrentExpression, ExpressStatement);
}
OpCodeDisabled = FALSE;
InScopeDisable = TRUE;
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
//
// Expression
//
case EFI_IFR_VALUE_OP:
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CurrentExpression->Type = EFI_HII_EXPRESSION_VALUE;
InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
if (InScopeDefault) {
//
// Used for default (EFI_IFR_DEFAULT)
//
CurrentDefault->ValueExpression = CurrentExpression;
} else {
//
// If used for a question, then the question will be read-only
//
//
// Make sure CurrentStatement is not NULL.
// If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
// file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler.
//
ASSERT (ParentStatement != NULL);
ParentStatement->ValueExpression = CurrentExpression;
}
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
case EFI_IFR_RULE_OP:
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CurrentExpression->Type = EFI_HII_EXPRESSION_RULE;
CurrentExpression->RuleId = ((EFI_IFR_RULE *)OpCodeData)->RuleId;
InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
case EFI_IFR_READ_OP:
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CurrentExpression->Type = EFI_HII_EXPRESSION_READ;
InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
//
// Make sure CurrentStatement is not NULL.
// If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
// file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler.
//
ASSERT (ParentStatement != NULL);
ParentStatement->ReadExpression = CurrentExpression;
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
case EFI_IFR_WRITE_OP:
CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
CurrentExpression->Type = EFI_HII_EXPRESSION_WRITE;
InsertTailList (&CurrentForm->ExpressionListHead, &CurrentExpression->Link);
//
// Make sure CurrentStatement is not NULL.
// If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
// file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler.
//
ASSERT (ParentStatement != NULL);
ParentStatement->WriteExpression = CurrentExpression;
//
// Take a look at next OpCode to see whether current expression consists
// of single OpCode
//
if (((EFI_IFR_OP_HEADER *)(OpCodeData + OpCodeLength))->Scope == 0) {
SingleOpCodeExpression = TRUE;
}
break;
//
// Image
//
case EFI_IFR_IMAGE_OP:
//
// Get ScopeOpcode from top of stack
//
PopScope (&ScopeOpCode);
PushScope (ScopeOpCode);
switch (ScopeOpCode) {
case EFI_IFR_FORM_SET_OP:
ImageId = &FormSet->ImageId;
break;
case EFI_IFR_FORM_OP:
case EFI_IFR_FORM_MAP_OP:
ASSERT (CurrentForm != NULL);
ImageId = &CurrentForm->ImageId;
break;
case EFI_IFR_ONE_OF_OPTION_OP:
ASSERT (CurrentOption != NULL);
ImageId = &CurrentOption->ImageId;
break;
default:
//
// Make sure CurrentStatement is not NULL.
// If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
// file is wrongly generated by tools such as VFR Compiler.
//
ASSERT (ParentStatement != NULL);
ImageId = &ParentStatement->ImageId;
break;
}
ASSERT (ImageId != NULL);
CopyMem (ImageId, &((EFI_IFR_IMAGE *)OpCodeData)->Id, sizeof (EFI_IMAGE_ID));
break;
//
// Refresh
//
case EFI_IFR_REFRESH_OP:
ASSERT (ParentStatement != NULL);
ParentStatement->RefreshInterval = ((EFI_IFR_REFRESH *)OpCodeData)->RefreshInterval;
break;
//
// Refresh guid.
//
case EFI_IFR_REFRESH_ID_OP:
//
// Get ScopeOpcode from top of stack
//
PopScope (&ScopeOpCode);
PushScope (ScopeOpCode);
switch (ScopeOpCode) {
case EFI_IFR_FORM_OP:
case EFI_IFR_FORM_MAP_OP:
ASSERT (CurrentForm != NULL);
CopyMem (&CurrentForm->RefreshGuid, &((EFI_IFR_REFRESH_ID *)OpCodeData)->RefreshEventGroupId, sizeof (EFI_GUID));
break;
default:
ASSERT (ParentStatement != NULL);
CopyMem (&ParentStatement->RefreshGuid, &((EFI_IFR_REFRESH_ID *)OpCodeData)->RefreshEventGroupId, sizeof (EFI_GUID));
break;
}
break;
//
// Modal tag
//
case EFI_IFR_MODAL_TAG_OP:
ASSERT (CurrentForm != NULL);
CurrentForm->ModalForm = TRUE;
break;
//
// Lock tag, used by form and statement.
//
case EFI_IFR_LOCKED_OP:
//
// Get ScopeOpcode from top of stack
//
PopScope (&ScopeOpCode);
PushScope (ScopeOpCode);
switch (ScopeOpCode) {
case EFI_IFR_FORM_OP:
case EFI_IFR_FORM_MAP_OP:
ASSERT (CurrentForm != NULL);
CurrentForm->Locked = TRUE;
break;
default:
ASSERT (ParentStatement != NULL);
ParentStatement->Locked = TRUE;
}
break;
//
// Vendor specific
//
case EFI_IFR_GUID_OP:
CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
if (CompareGuid ((EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)), &gEdkiiIfrBitVarstoreGuid)) {
Scope = 0;
QuestionReferBitField = TRUE;
}
break;
//
// Scope End
//
case EFI_IFR_END_OP:
QuestionReferBitField = FALSE;
Status = PopScope (&ScopeOpCode);
if (EFI_ERROR (Status)) {
ResetScopeStack ();
return Status;
}
//
// Parent statement end tag found, update ParentStatement info.
//
if (IsStatementOpCode (ScopeOpCode) && (ParentStatement != NULL) && (ParentStatement->Operand == ScopeOpCode)) {
ParentStatement = ParentStatement->ParentStatement;
}
switch (ScopeOpCode) {
case EFI_IFR_FORM_SET_OP:
//
// End of FormSet, update FormSet IFR binary length
// to stop parsing substantial OpCodes
//
FormSet->IfrBinaryLength = OpCodeOffset;
break;
case EFI_IFR_FORM_OP:
case EFI_IFR_FORM_MAP_OP:
//
// End of Form
//
CurrentForm = NULL;
SuppressForQuestion = FALSE;
break;
case EFI_IFR_ONE_OF_OPTION_OP:
//
// End of Option
//
CurrentOption = NULL;
break;
case EFI_IFR_NO_SUBMIT_IF_OP:
case EFI_IFR_INCONSISTENT_IF_OP:
case EFI_IFR_WARNING_IF_OP:
//
// Ignore end of EFI_IFR_NO_SUBMIT_IF and EFI_IFR_INCONSISTENT_IF
//
break;
case EFI_IFR_SUPPRESS_IF_OP:
if (SuppressForOption) {
PopConditionalExpression (ExpressOption);
} else if (SuppressForQuestion) {
PopConditionalExpression (ExpressStatement);
} else {
PopConditionalExpression (ExpressForm);
}
break;
case EFI_IFR_GRAY_OUT_IF_OP:
PopConditionalExpression (ExpressStatement);
break;
case EFI_IFR_DISABLE_IF_OP:
if (CurrentForm != NULL) {
PopConditionalExpression (ExpressStatement);
}
InScopeDisable = FALSE;
OpCodeDisabled = FALSE;
break;
case EFI_IFR_ONE_OF_OP:
case EFI_IFR_ORDERED_LIST_OP:
SuppressForOption = FALSE;
break;
case EFI_IFR_DEFAULT_OP:
InScopeDefault = FALSE;
break;
case EFI_IFR_MAP_OP:
//
// Get current Map Expression List.
//
Status = PopMapExpressionList ((VOID **)&MapExpressionList);
if (Status == EFI_ACCESS_DENIED) {
MapExpressionList = NULL;
}
//
// Get current expression.
//
Status = PopCurrentExpression ((VOID **)&CurrentExpression);
ASSERT_EFI_ERROR (Status);
ASSERT (MapScopeDepth > 0);
MapScopeDepth--;
break;
default:
if (IsExpressionOpCode (ScopeOpCode)) {
if (InScopeDisable && (CurrentForm == NULL)) {
//
// This is DisableIf expression for Form, it should be a constant expression
//
ASSERT (CurrentExpression != NULL);
Status = EvaluateExpression (FormSet, CurrentForm, CurrentExpression);
if (EFI_ERROR (Status)) {
return Status;
}
OpCodeDisabled = IsTrue (&CurrentExpression->Result);
//
// DisableIf Expression is only used once and not queued, free it
//
DestroyExpression (CurrentExpression);
}
//
// End of current Expression
//
CurrentExpression = NULL;
}
break;
}
break;
default:
break;
}
if (IsStatementOpCode (Operand)) {
CurrentStatement->ParentStatement = ParentStatement;
if (Scope != 0) {
//
// Scope != 0, other statements or options may nest in this statement.
// Update the ParentStatement info.
//
ParentStatement = CurrentStatement;
}
}
}
return EFI_SUCCESS;
}
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