diff options
Diffstat (limited to 'BaseTools/Source/C/FCE/Expression.c')
| -rw-r--r-- | BaseTools/Source/C/FCE/Expression.c | 2367 |
1 files changed, 0 insertions, 2367 deletions
diff --git a/BaseTools/Source/C/FCE/Expression.c b/BaseTools/Source/C/FCE/Expression.c deleted file mode 100644 index 34b310d97f..0000000000 --- a/BaseTools/Source/C/FCE/Expression.c +++ /dev/null @@ -1,2367 +0,0 @@ -/** @file
-
- Utility functions for expression evaluation.
-
- Copyright (c) 2011-2019, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "IfrParse.h"
-
-#define gEmptyString L""
-//
-// Global stack used to evaluate boolean expresions
-//
-EFI_HII_VALUE *mOpCodeScopeStack = NULL;
-EFI_HII_VALUE *mOpCodeScopeStackEnd = NULL;
-EFI_HII_VALUE *mOpCodeScopeStackPointer = NULL;
-
-EFI_HII_VALUE *mExpressionEvaluationStack = NULL;
-EFI_HII_VALUE *mExpressionEvaluationStackEnd = NULL;
-EFI_HII_VALUE *mExpressionEvaluationStackPointer = NULL;
-UINTN mExpressionEvaluationStackOffset = 0;
-
-EFI_HII_VALUE *mCurrentExpressionStack = NULL;
-EFI_HII_VALUE *mCurrentExpressionEnd = NULL;
-EFI_HII_VALUE *mCurrentExpressionPointer = NULL;
-
-EFI_HII_VALUE *mMapExpressionListStack = NULL;
-EFI_HII_VALUE *mMapExpressionListEnd = NULL;
-EFI_HII_VALUE *mMapExpressionListPointer = NULL;
-
-/**
- Get Value for given Name from a NameValue Storage.
-
- @param Storage The NameValue Storage.
- @param Name The Name.
- @param Value The retured Value.
-
- @retval EFI_SUCCESS Value found for given Name.
- @retval EFI_NOT_FOUND No such Name found in NameValue storage.
-
-**/
-EFI_STATUS
-GetValueByName (
- IN FORMSET_STORAGE *Storage,
- IN CHAR16 *Name,
- IN OUT CHAR16 **Value
- )
-{
- LIST_ENTRY *Link;
- NAME_VALUE_NODE *Node;
-
- *Value = NULL;
-
- Link = GetFirstNode (&Storage->NameValueListHead);
- while (!IsNull (&Storage->NameValueListHead, Link)) {
- Node = NAME_VALUE_NODE_FROM_LINK (Link);
-
- if (FceStrCmp (Name, Node->Name) == 0) {
- NewStringCpy (Value, Node->EditValue);
- return EFI_SUCCESS;
- }
-
- Link = GetNextNode (&Storage->NameValueListHead, Link);
- }
-
- return EFI_NOT_FOUND;
-}
-
-/**
- Grow size of the stack.
-
- This is an internal function.
-
- @param Stack On input: old stack; On output: new stack
- @param StackPtr On input: old stack pointer; On output: new stack
- pointer
- @param StackEnd On input: old stack end; On output: new stack end
-
- @retval EFI_SUCCESS Grow stack success.
- @retval EFI_OUT_OF_RESOURCES No enough memory for stack space.
-
-**/
-EFI_STATUS
-GrowStack (
- IN OUT EFI_HII_VALUE **Stack,
- IN OUT EFI_HII_VALUE **StackPtr,
- IN OUT EFI_HII_VALUE **StackEnd
- )
-{
- UINTN Size;
- EFI_HII_VALUE *NewStack;
-
- Size = EXPRESSION_STACK_SIZE_INCREMENT;
- if (*StackPtr != NULL) {
- Size = Size + (*StackEnd - *Stack);
- }
-
- NewStack = AllocatePool (Size * sizeof (EFI_HII_VALUE));
- if (NewStack == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (*StackPtr != NULL) {
- //
- // Copy from Old Stack to the New Stack
- //
- CopyMem (
- NewStack,
- *Stack,
- (*StackEnd - *Stack) * sizeof (EFI_HII_VALUE)
- );
-
- //
- // Free The Old Stack
- //
- FreePool (*Stack);
- }
-
- //
- // Make the Stack pointer point to the old data in the new stack
- //
- *StackPtr = NewStack + (*StackPtr - *Stack);
- *Stack = NewStack;
- *StackEnd = NewStack + Size;
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Push an element onto the Boolean Stack.
-
- @param Stack On input: old stack; On output: new stack
- @param StackPtr On input: old stack pointer; On output: new stack
- pointer
- @param StackEnd On input: old stack end; On output: new stack end
- @param Data Data to push.
-
- @retval EFI_SUCCESS Push stack success.
-
-**/
-EFI_STATUS
-PushStack (
- IN OUT EFI_HII_VALUE **Stack,
- IN OUT EFI_HII_VALUE **StackPtr,
- IN OUT EFI_HII_VALUE **StackEnd,
- IN EFI_HII_VALUE *Data
- )
-{
- EFI_STATUS Status;
-
- //
- // Check for a stack overflow condition
- //
- if (*StackPtr >= *StackEnd) {
- //
- // Grow the stack
- //
- Status = GrowStack (Stack, StackPtr, StackEnd);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- }
-
- //
- // Push the item onto the stack
- //
- CopyMem (*StackPtr, Data, sizeof (EFI_HII_VALUE));
- *StackPtr = *StackPtr + 1;
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Pop an element from the stack.
-
- @param Stack On input: old stack
- @param StackPtr On input: old stack pointer; On output: new stack pointer
- @param Data Data to pop.
-
- @retval EFI_SUCCESS The value was popped onto the stack.
- @retval EFI_ACCESS_DENIED The pop operation underflowed the stack
-
-**/
-EFI_STATUS
-PopStack (
- IN EFI_HII_VALUE *Stack,
- IN OUT EFI_HII_VALUE **StackPtr,
- OUT EFI_HII_VALUE *Data
- )
-{
- //
- // Check for a stack underflow condition
- //
- if (*StackPtr == Stack) {
- return EFI_ACCESS_DENIED;
- }
-
- //
- // Pop the item off the stack
- //
- *StackPtr = *StackPtr - 1;
- CopyMem (Data, *StackPtr, sizeof (EFI_HII_VALUE));
- return EFI_SUCCESS;
-}
-
-
-/**
- Reset stack pointer to begin of the stack.
-
-**/
-VOID
-ResetCurrentExpressionStack (
- VOID
- )
-{
- mCurrentExpressionPointer = mCurrentExpressionStack;
-}
-
-
-/**
- Push current expression onto the Stack
-
- @param Pointer Pointer to current expression.
-
- @retval EFI_SUCCESS The value was pushed onto the stack.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.
-
-**/
-EFI_STATUS
-PushCurrentExpression (
- IN VOID *Pointer
- )
-{
- EFI_HII_VALUE Data;
-
- Data.Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Data.Value.u64 = (UINT64) (UINTN) Pointer;
-
- return PushStack (
- &mCurrentExpressionStack,
- &mCurrentExpressionPointer,
- &mCurrentExpressionEnd,
- &Data
- );
-}
-
-
-/**
- Pop current expression from the Stack
-
- @param Pointer Pointer to current expression to be pop.
-
- @retval EFI_SUCCESS The value was pushed onto the stack.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.
-
-**/
-EFI_STATUS
-PopCurrentExpression (
- OUT VOID **Pointer
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Data;
-
- Status = PopStack (
- mCurrentExpressionStack,
- &mCurrentExpressionPointer,
- &Data
- );
-
- *Pointer = (VOID *) (UINTN) Data.Value.u64;
-
- return Status;
-}
-
-/**
- Reset stack pointer to begin of the stack.
-
-**/
-VOID
-ResetMapExpressionListStack (
- VOID
- )
-{
- mMapExpressionListPointer = mMapExpressionListStack;
-}
-
-
-/**
- Push the list of map expression onto the Stack
-
- @param Pointer Pointer to the list of map expression to be pushed.
-
- @retval EFI_SUCCESS The value was pushed onto the stack.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.
-
-**/
-EFI_STATUS
-PushMapExpressionList (
- IN VOID *Pointer
- )
-{
- EFI_HII_VALUE Data;
-
- Data.Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Data.Value.u64 = (UINT64) (UINTN) Pointer;
-
- return PushStack (
- &mMapExpressionListStack,
- &mMapExpressionListPointer,
- &mMapExpressionListEnd,
- &Data
- );
-}
-
-
-/**
- Pop the list of map expression from the Stack
-
- @param Pointer Pointer to the list of map expression to be pop.
-
- @retval EFI_SUCCESS The value was pushed onto the stack.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.
-
-**/
-EFI_STATUS
-PopMapExpressionList (
- OUT VOID **Pointer
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Data;
-
- Status = PopStack (
- mMapExpressionListStack,
- &mMapExpressionListPointer,
- &Data
- );
-
- *Pointer = (VOID *) (UINTN) Data.Value.u64;
-
- return Status;
-}
-
-/**
- Reset stack pointer to begin of the stack.
-
-**/
-VOID
-ResetScopeStack (
- VOID
- )
-{
- mOpCodeScopeStackPointer = mOpCodeScopeStack;
-}
-
-
-/**
- Push an Operand onto the Stack
-
- @param Operand Operand to push.
-
- @retval EFI_SUCCESS The value was pushed onto the stack.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the
- stack.
-
-**/
-EFI_STATUS
-PushScope (
- IN UINT8 Operand
- )
-{
- EFI_HII_VALUE Data;
-
- Data.Type = EFI_IFR_TYPE_NUM_SIZE_8;
- Data.Value.u8 = Operand;
-
- return PushStack (
- &mOpCodeScopeStack,
- &mOpCodeScopeStackPointer,
- &mOpCodeScopeStackEnd,
- &Data
- );
-}
-
-
-/**
- Pop an Operand from the Stack
-
- @param Operand Operand to pop.
-
- @retval EFI_SUCCESS The value was pushed onto the stack.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the
- stack.
-
-**/
-EFI_STATUS
-PopScope (
- OUT UINT8 *Operand
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Data;
-
- Status = PopStack (
- mOpCodeScopeStack,
- &mOpCodeScopeStackPointer,
- &Data
- );
-
- *Operand = Data.Value.u8;
-
- return Status;
-}
-
-
-/**
- Push an Expression value onto the Stack
-
- @param Value Expression value to push.
-
- @retval EFI_SUCCESS The value was pushed onto the stack.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the
- stack.
-
-**/
-EFI_STATUS
-PushExpression (
- IN EFI_HII_VALUE *Value
- )
-{
- return PushStack (
- &mExpressionEvaluationStack,
- &mExpressionEvaluationStackPointer,
- &mExpressionEvaluationStackEnd,
- Value
- );
-}
-
-
-/**
- Pop an Expression value from the stack.
-
- @param Value Expression value to pop.
-
- @retval EFI_SUCCESS The value was popped onto the stack.
- @retval EFI_ACCESS_DENIED The pop operation underflowed the stack
-
-**/
-EFI_STATUS
-PopExpression (
- OUT EFI_HII_VALUE *Value
- )
-{
- return PopStack (
- mExpressionEvaluationStack + mExpressionEvaluationStackOffset,
- &mExpressionEvaluationStackPointer,
- Value
- );
-}
-
-/**
- Get current stack offset from stack start.
-
- @return Stack offset to stack start.
-**/
-UINTN
-SaveExpressionEvaluationStackOffset (
- )
-{
- UINTN TempStackOffset;
- TempStackOffset = mExpressionEvaluationStackOffset;
- mExpressionEvaluationStackOffset = mExpressionEvaluationStackPointer - mExpressionEvaluationStack;
- return TempStackOffset;
-}
-
-/**
- Restore stack offset based on input stack offset
-
- @param StackOffset Offset to stack start.
-
-**/
-VOID
-RestoreExpressionEvaluationStackOffset (
- UINTN StackOffset
- )
-{
- mExpressionEvaluationStackOffset = StackOffset;
-}
-
-
-/**
- Search a Question in Form scope using its QuestionId.
-
- @param Form The form which contains this Question.
- @param QuestionId Id of this Question.
-
- @retval Pointer The Question.
- @retval NULL Specified Question not found in the form.
-
-**/
-FORM_BROWSER_STATEMENT *
-IdToQuestion2 (
- IN FORM_BROWSER_FORM *Form,
- IN UINT16 QuestionId
- )
-{
- LIST_ENTRY *Link;
- FORM_BROWSER_STATEMENT *Question;
-
- if (QuestionId == 0) {
- //
- // The value of zero is reserved
- //
- return NULL;
- }
-
- Link = GetFirstNode (&Form->StatementListHead);
- while (!IsNull (&Form->StatementListHead, Link)) {
- Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
-
- if (Question->QuestionId == QuestionId) {
- return Question;
- }
-
- Link = GetNextNode (&Form->StatementListHead, Link);
- }
-
- return NULL;
-}
-
-
-/**
- Search a Question in Formset scope using its QuestionId.
-
- @param FormSet The formset which contains this form.
- @param Form The form which contains this Question.
- @param QuestionId Id of this Question.
-
- @retval Pointer The Question.
- @retval NULL Specified Question not found in the form.
-
-**/
-FORM_BROWSER_STATEMENT *
-IdToQuestion (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN FORM_BROWSER_FORM *Form,
- IN UINT16 QuestionId
- )
-{
- LIST_ENTRY *Link;
- FORM_BROWSER_STATEMENT *Question;
-
- //
- // Search in the form scope first
- //
- Question = IdToQuestion2 (Form, QuestionId);
- if (Question != NULL) {
- return Question;
- }
-
- //
- // Search in the formset scope
- //
- Link = GetFirstNode (&FormSet->FormListHead);
- while (!IsNull (&FormSet->FormListHead, Link)) {
- Form = FORM_BROWSER_FORM_FROM_LINK (Link);
-
- Question = IdToQuestion2 (Form, QuestionId);
- if (Question != NULL) {
- return Question;
- }
-
- Link = GetNextNode (&FormSet->FormListHead, Link);
- }
-
- return NULL;
-}
-
-
-/**
- Get Expression given its RuleId.
-
- @param Form The form which contains this Expression.
- @param RuleId Id of this Expression.
-
- @retval Pointer The Expression.
- @retval NULL Specified Expression not found in the form.
-
-**/
-FORM_EXPRESSION *
-RuleIdToExpression (
- IN FORM_BROWSER_FORM *Form,
- IN UINT8 RuleId
- )
-{
- LIST_ENTRY *Link;
- FORM_EXPRESSION *Expression;
-
- Link = GetFirstNode (&Form->ExpressionListHead);
- while (!IsNull (&Form->ExpressionListHead, Link)) {
- Expression = FORM_EXPRESSION_FROM_LINK (Link);
-
- if ((Expression->Type == EFI_HII_EXPRESSION_RULE) && (Expression->RuleId == RuleId)) {
- return Expression;
- }
-
- Link = GetNextNode (&Form->ExpressionListHead, Link);
- }
-
- return NULL;
-}
-
-/**
- Convert the input Unicode character to upper.
-
- @param String Th Unicode character to be converted.
-
-**/
-VOID
-IfrStrToUpper (
- IN CHAR16 *String
- )
-{
- while (*String != 0) {
- if ((*String >= 'a') && (*String <= 'z')) {
- *String = (UINT16) ((*String) & ((UINT16) ~0x20));
- }
- String++;
- }
-}
-
-/**
- Evaluate opcode EFI_IFR_TO_STRING.
-
- @param FormSet Formset which contains this opcode.
- @param Format String format in EFI_IFR_TO_STRING.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrToString (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN UINT8 Format,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *PrintFormat;
- CHAR16 Buffer[MAXIMUM_VALUE_CHARACTERS];
- UINTN BufferSize;
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- switch (Value.Type) {
- case EFI_IFR_TYPE_NUM_SIZE_8:
- case EFI_IFR_TYPE_NUM_SIZE_16:
- case EFI_IFR_TYPE_NUM_SIZE_32:
- case EFI_IFR_TYPE_NUM_SIZE_64:
- BufferSize = MAXIMUM_VALUE_CHARACTERS * sizeof (CHAR16);
- switch (Format) {
- case EFI_IFR_STRING_UNSIGNED_DEC:
- case EFI_IFR_STRING_SIGNED_DEC:
- PrintFormat = L"%ld";
- break;
-
- case EFI_IFR_STRING_LOWERCASE_HEX:
- PrintFormat = L"%lx";
- break;
-
- case EFI_IFR_STRING_UPPERCASE_HEX:
- PrintFormat = L"%lX";
- break;
-
- default:
- return EFI_UNSUPPORTED;
- }
- UnicodeSPrint (Buffer, BufferSize, PrintFormat, Value.Value.u64);
- break;
-
- case EFI_IFR_TYPE_STRING:
- CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));
- return EFI_SUCCESS;
-
- case EFI_IFR_TYPE_BOOLEAN:
- break;
-
- default:
- return EFI_UNSUPPORTED;
- }
-
- Result->Type = EFI_IFR_TYPE_STRING;
- //Result->Value.string = NewString (String, FormSet->HiiHandle);
- return EFI_SUCCESS;
-}
-
-/**
- Evaluate opcode EFI_IFR_TO_UINT.
-
- @param FormSet Formset which contains this opcode.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrToUint (
- IN FORM_BROWSER_FORMSET *FormSet,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *String;
- CHAR16 *StringPtr;
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if (Value.Type >= EFI_IFR_TYPE_OTHER) {
- return EFI_UNSUPPORTED;
- }
-
- Status = EFI_SUCCESS;
- if (Value.Type == EFI_IFR_TYPE_STRING) {
- String = GetToken (Value.Value.string, FormSet->UnicodeBinary);
- if (String == NULL) {
- return EFI_NOT_FOUND;
- }
-
- IfrStrToUpper (String);
- StringPtr = StrStr (String, L"0X");
- if (StringPtr != NULL) {
- //
- // Hex string
- //
- Result->Value.u64 = FceStrHexToUint64 (String);
- } else {
- //
- // decimal string
- //
- Result->Value.u64 = FceStrDecimalToUint64 (String);
- }
- FreePool (String);
- } else {
- CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));
- }
-
- Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- return Status;
-}
-
-/**
- Evaluate opcode EFI_IFR_CATENATE.
-
- @param FormSet Formset which contains this opcode.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrCatenate (
- IN FORM_BROWSER_FORMSET *FormSet,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *String[2];
- UINTN Index;
- CHAR16 *StringPtr;
- UINTN Size;
-
- //
- // String[0] - The second string
- // String[1] - The first string
- //
- String[0] = NULL;
- String[1] = NULL;
- StringPtr = NULL;
- Status = EFI_SUCCESS;
-
- for (Index = 0; Index < 2; Index++) {
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Value.Type != EFI_IFR_TYPE_STRING) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
-
- String[Index] = GetToken (Value.Value.string, FormSet->UnicodeBinary);
- if (String[Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- Size = FceStrSize (String[0]);
- StringPtr= AllocatePool (FceStrSize (String[1]) + Size);
- ASSERT (StringPtr != NULL);
- StrCpy (StringPtr, String[1]);
- StrCat (StringPtr, String[0]);
-
- Result->Type = EFI_IFR_TYPE_STRING;
- //Result->Value.string = NewString (StringPtr, FormSet->HiiHandle);
-
-Done:
- if (String[0] != NULL) {
- FreePool (String[0]);
- }
- if (String[1] != NULL) {
- FreePool (String[1]);
- }
- if (StringPtr != NULL) {
- FreePool (StringPtr);
- }
-
- return Status;
-}
-
-/**
- Evaluate opcode EFI_IFR_MATCH.
-
- @param FormSet Formset which contains this opcode.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrMatch (
- IN FORM_BROWSER_FORMSET *FormSet,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *String[2];
- UINTN Index;
-
- //
- // String[0] - The string to search
- // String[1] - pattern
- //
- String[0] = NULL;
- String[1] = NULL;
- Status = EFI_SUCCESS;
- for (Index = 0; Index < 2; Index++) {
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Value.Type != EFI_IFR_TYPE_STRING) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
-
- String[Index] = GetToken (Value.Value.string, FormSet->UnicodeBinary);
- if (String [Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- Result->Type = EFI_IFR_TYPE_BOOLEAN;
- Result->Value.b = MetaiMatch (String[0], String[1]);
-
-Done:
- if (String[0] != NULL) {
- FreePool (String[0]);
- }
- if (String[1] != NULL) {
- FreePool (String[1]);
- }
-
- return Status;
-}
-
-
-/**
- Evaluate opcode EFI_IFR_FIND.
-
- @param FormSet Formset which contains this opcode.
- @param Format Case sensitive or insensitive.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrFind (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN UINT8 Format,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *String[2];
- UINTN Base;
- CHAR16 *StringPtr;
- UINTN Index;
-
- if (Format > EFI_IFR_FF_CASE_INSENSITIVE) {
- return EFI_UNSUPPORTED;
- }
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- return EFI_UNSUPPORTED;
- }
- Base = (UINTN) Value.Value.u64;
-
- //
- // String[0] - sub-string
- // String[1] - The string to search
- //
- String[0] = NULL;
- String[1] = NULL;
- for (Index = 0; Index < 2; Index++) {
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Value.Type != EFI_IFR_TYPE_STRING) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
-
- String[Index] = GetToken (Value.Value.string, FormSet->UnicodeBinary);
- if (String[Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- if (Format == EFI_IFR_FF_CASE_INSENSITIVE) {
- //
- // Case insensitive, convert both string to upper case
- //
- IfrStrToUpper (String[Index]);
- }
- }
-
- Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- if (Base >= FceStrLen (String[1])) {
- Result->Value.u64 = 0xFFFFFFFFFFFFFFFFULL;
- } else {
- StringPtr = StrStr (String[1] + Base, String[0]);
- Result->Value.u64 = (StringPtr == NULL) ? 0xFFFFFFFFFFFFFFFFULL : (StringPtr - String[1]);
- }
-
-Done:
- if (String[0] != NULL) {
- FreePool (String[0]);
- }
- if (String[1] != NULL) {
- FreePool (String[1]);
- }
-
- return Status;
-}
-
-
-/**
- Evaluate opcode EFI_IFR_MID.
-
- @param FormSet Formset which contains this opcode.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrMid (
- IN FORM_BROWSER_FORMSET *FormSet,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *String;
- UINTN Base;
- UINTN Length;
- CHAR16 *SubString;
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- return EFI_UNSUPPORTED;
- }
- Length = (UINTN) Value.Value.u64;
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- return EFI_UNSUPPORTED;
- }
- Base = (UINTN) Value.Value.u64;
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Value.Type != EFI_IFR_TYPE_STRING) {
- return EFI_UNSUPPORTED;
- }
- String = GetToken (Value.Value.string, FormSet->UnicodeBinary);
- if (String == NULL) {
- return EFI_NOT_FOUND;
- }
-
- if ((Length == 0) || (Base >= FceStrLen (String))) {
- SubString = gEmptyString;
- } else {
- SubString = String + Base;
- if ((Base + Length) < FceStrLen (String)) {
- SubString[Length] = L'\0';
- }
- }
-
- Result->Type = EFI_IFR_TYPE_STRING;
- //Result->Value.string = NewString (SubString, FormSet->HiiHandle);
-
- FreePool (String);
-
- return Status;
-}
-
-/**
- Evaluate opcode EFI_IFR_TOKEN.
-
- @param FormSet Formset which contains this opcode.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrToken (
- IN FORM_BROWSER_FORMSET *FormSet,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *String[2];
- UINTN Count;
- CHAR16 *Delimiter;
- CHAR16 *SubString;
- CHAR16 *StringPtr;
- UINTN Index;
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- return EFI_UNSUPPORTED;
- }
- Count = (UINTN) Value.Value.u64;
-
- //
- // String[0] - Delimiter
- // String[1] - The string to search
- //
- String[0] = NULL;
- String[1] = NULL;
- for (Index = 0; Index < 2; Index++) {
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Value.Type != EFI_IFR_TYPE_STRING) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
-
- String[Index] = GetToken (Value.Value.string, FormSet->UnicodeBinary);
- if (String[Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- Delimiter = String[0];
- SubString = String[1];
- while (Count > 0) {
- SubString = StrStr (SubString, Delimiter);
- if (SubString != NULL) {
- //
- // Skip over the delimiter
- //
- SubString = SubString + FceStrLen (Delimiter);
- } else {
- break;
- }
- Count--;
- }
-
- if (SubString == NULL) {
- //
- // nth delimited sub-string not found, push an empty string
- //
- SubString = gEmptyString;
- } else {
- //
- // Put a NULL terminator for nth delimited sub-string
- //
- StringPtr = StrStr (SubString, Delimiter);
- if (StringPtr != NULL) {
- *StringPtr = L'\0';
- }
- }
-
- Result->Type = EFI_IFR_TYPE_STRING;
- //Result->Value.string = NewString (SubString, FormSet->HiiHandle);
-
-Done:
- if (String[0] != NULL) {
- FreePool (String[0]);
- }
- if (String[1] != NULL) {
- FreePool (String[1]);
- }
-
- return Status;
-}
-
-
-/**
- Evaluate opcode EFI_IFR_SPAN.
-
- @param FormSet Formset which contains this opcode.
- @param Flags FIRST_MATCHING or FIRST_NON_MATCHING.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrSpan (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN UINT8 Flags,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value;
- CHAR16 *String[2];
- CHAR16 *Charset;
- UINTN Base;
- UINTN Index;
- CHAR16 *StringPtr;
- BOOLEAN Found;
-
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- return EFI_UNSUPPORTED;
- }
- Base = (UINTN) Value.Value.u64;
-
- //
- // String[0] - Charset
- // String[1] - The string to search
- //
- String[0] = NULL;
- String[1] = NULL;
- for (Index = 0; Index < 2; Index++) {
- Status = PopExpression (&Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Value.Type != EFI_IFR_TYPE_STRING) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
-
- String[Index] = GetToken (Value.Value.string, FormSet->UnicodeBinary);
- if (String [Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- if (Base >= FceStrLen (String[1])) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
-
- Found = FALSE;
- StringPtr = String[1] + Base;
- Charset = String[0];
- while (*StringPtr != 0 && !Found) {
- Index = 0;
- while (Charset[Index] != 0) {
- if ((*StringPtr >= Charset[Index]) && (*StringPtr <= Charset[Index + 1])) {
- if (Flags == EFI_IFR_FLAGS_FIRST_MATCHING) {
- Found = TRUE;
- break;
- }
- } else {
- if (Flags == EFI_IFR_FLAGS_FIRST_NON_MATCHING) {
- Found = TRUE;
- break;
- }
- }
- //
- // Skip characters pair representing low-end of a range and high-end of a range
- //
- Index += 2;
- }
-
- if (!Found) {
- StringPtr++;
- }
- }
-
- Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Result->Value.u64 = StringPtr - String[1];
-
-Done:
- if (String[0] != NULL) {
- FreePool (String[0]);
- }
- if (String[1] != NULL) {
- FreePool (String[1]);
- }
-
- return Status;
-}
-
-
-/**
- Zero extend integer/boolean/date/time to UINT64 for comparing.
-
- @param Value HII Value to be converted.
-
-**/
-VOID
-ExtendValueToU64 (
- IN EFI_HII_VALUE *Value
- )
-{
- UINT64 Temp;
-
- Temp = 0;
- switch (Value->Type) {
- case EFI_IFR_TYPE_NUM_SIZE_8:
- Temp = Value->Value.u8;
- break;
-
- case EFI_IFR_TYPE_NUM_SIZE_16:
- Temp = Value->Value.u16;
- break;
-
- case EFI_IFR_TYPE_NUM_SIZE_32:
- Temp = Value->Value.u32;
- break;
-
- case EFI_IFR_TYPE_BOOLEAN:
- Temp = Value->Value.b;
- break;
-
- case EFI_IFR_TYPE_TIME:
- Temp = Value->Value.u32 & 0xffffff;
- break;
-
- case EFI_IFR_TYPE_DATE:
- Temp = Value->Value.u32;
- break;
-
- default:
- return;
- }
-
- Value->Value.u64 = Temp;
-}
-
-
-/**
- Compare two Hii value.
-
- @param Value1 Expression value to compare on left-hand.
- @param Value2 Expression value to compare on right-hand.
- @param FormSet The pointer to the Formset.
-
- @retval EFI_INVALID_PARAMETER Could not perform compare on two values.
- @retval 0 Two operators equal.
- @return Positive value if Value1 is greater than Value2.
- @retval Negative value if Value1 is less than Value2.
-
-**/
-INTN
-CompareHiiValue (
- IN EFI_HII_VALUE *Value1,
- IN EFI_HII_VALUE *Value2,
- IN FORM_BROWSER_FORMSET *FormSet
- )
-{
- INTN Result;
- INT64 Temp64;
- CHAR16 *Str1;
- CHAR16 *Str2;
-
- if ((Value1->Type >= EFI_IFR_TYPE_OTHER) || (Value2->Type >= EFI_IFR_TYPE_OTHER) ) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((Value1->Type == EFI_IFR_TYPE_STRING) || (Value2->Type == EFI_IFR_TYPE_STRING) ) {
- if (Value1->Type != Value2->Type) {
- //
- // Both Operator should be type of String
- //
- return EFI_INVALID_PARAMETER;
- }
-
- if ((Value1->Value.string == 0) || (Value2->Value.string == 0)) {
- //
- // StringId 0 is reserved
- //
- return EFI_INVALID_PARAMETER;
- }
-
- if (Value1->Value.string == Value2->Value.string) {
- return 0;
- }
-
- Str1 = GetToken (Value1->Value.string, FormSet->UnicodeBinary);
- if (Str1 == NULL) {
- //
- // String not found
- //
- return EFI_INVALID_PARAMETER;
- }
-
- Str2 = GetToken (Value2->Value.string, FormSet->UnicodeBinary);
- if (Str2 == NULL) {
- FreePool (Str1);
- return EFI_INVALID_PARAMETER;
- }
-
- Result = FceStrCmp (Str1, Str2);
-
- FreePool (Str1);
- FreePool (Str2);
-
- return Result;
- }
-
- //
- // Take remain types(integer, boolean, date/time) as integer
- //
- Temp64 = (INT64) (Value1->Value.u64 - Value2->Value.u64);
- if (Temp64 > 0) {
- Result = 1;
- } else if (Temp64 < 0) {
- Result = -1;
- } else {
- Result = 0;
- }
-
- return Result;
-}
-
-/**
- Tell whether this Operand is an constant Expression or not
-
- @param Operand Operand of an IFR OpCode.
-
- @retval TRUE This is an Expression OpCode.
- @retval FALSE Not an Expression OpCode.
-
-**/
-BOOLEAN
-IsConstantExpressionOpCode (
- IN UINT8 Operand
- )
-{
- if ((Operand == EFI_IFR_EQ_ID_VAL_OP) ||
- (Operand == EFI_IFR_EQ_ID_ID_OP) ||
- (Operand == EFI_IFR_EQ_ID_VAL_LIST_OP )||
- (Operand == EFI_IFR_QUESTION_REF1_OP) ||
- (Operand == EFI_IFR_QUESTION_REF2_OP) ||
- (Operand == EFI_IFR_QUESTION_REF3_OP) ||
- (Operand == EFI_IFR_THIS_OP ) ||
- (Operand == EFI_IFR_SECURITY_OP) ||
- (Operand == EFI_IFR_GET_OP) ||
- (Operand == EFI_IFR_SET_OP)
- ) {
- return FALSE;
- } else {
- return TRUE;
- }
-}
-
-/**
- Update the HiiValue of question from its variable.
-
- @param FormSet FormSet associated with this expression.
- @param Question The pointer to the Question
-
- @return EFI_SUCCESS
- @return EFI_NOT_FOUND
-**/
-EFI_STATUS
-UpdateHiiValue (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN FORM_BROWSER_STATEMENT *Question
- )
-{
- EFI_STATUS Status;
- FORMSET_STORAGE *VarList;
- UINT8 *VarBuffer;
- EFI_HII_VALUE *HiiValue;
-
- Status = EFI_SUCCESS;
- HiiValue = &Question->HiiValue;
-
- Status = SearchVarStorage (
- Question,
- NULL,
- Question->VarStoreInfo.VarOffset,
- FormSet->StorageListHead,
- (CHAR8 **)&VarBuffer,
- &VarList
- );
- if (EFI_ERROR(Status)) {
- return Status;
- }
- if (Question->QuestionReferToBitField) {
- GetBitsQuestionValue (Question, VarBuffer, &HiiValue->Value.u32);
- } else {
- CopyMem (&HiiValue->Value.u64, VarBuffer, Question->StorageWidth);
- }
- return Status;
-}
-/**
- Evaluate the result of a HII expression.
-
- If Expression is NULL, then ASSERT.
-
- @param FormSet FormSet associated with this expression.
- @param Form Form associated with this expression.
- @param Expression Expression to be evaluated.
- @param ConstantExpression The pointer to the flag of constant expression. If constant, will return TRUE.
-
- @retval EFI_SUCCESS The expression evaluated successfuly
- @retval EFI_NOT_FOUND The Question which referenced by a QuestionId
- could not be found.
- @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the
- stack.
- @retval EFI_ACCESS_DENIED The pop operation underflowed the stack
- @retval EFI_INVALID_PARAMETER Syntax error with the Expression
-
-**/
-EFI_STATUS
-EvaluateExpression (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN FORM_BROWSER_FORM *Form,
- IN OUT FORM_EXPRESSION *Expression,
- IN OUT BOOLEAN *ConstantExpression
- )
-{
- EFI_STATUS Status;
- LIST_ENTRY *Link;
- EXPRESSION_OPCODE *OpCode;
- FORM_BROWSER_STATEMENT *Question;
- FORM_BROWSER_STATEMENT *Question2;
- UINT16 Index;
- EFI_HII_VALUE Data1;
- EFI_HII_VALUE Data2;
- EFI_HII_VALUE Data3;
- FORM_EXPRESSION *RuleExpression;
- EFI_HII_VALUE *Value;
- INTN Result;
- CHAR16 *StrPtr;
- UINT32 TempValue;
- LIST_ENTRY *SubExpressionLink;
- FORM_EXPRESSION *SubExpression;
- UINTN StackOffset;
- UINTN TempLength;
- CHAR16 TempStr[5];
- UINT8 DigitUint8;
- UINT8 *TempBuffer;
-
- //
- // Save current stack offset.
- //
- StackOffset = SaveExpressionEvaluationStackOffset ();
-
- ASSERT (Expression != NULL);
- Expression->Result.Type = EFI_IFR_TYPE_OTHER;
-
- Link = GetFirstNode (&Expression->OpCodeListHead);
- while (!IsNull (&Expression->OpCodeListHead, Link)) {
- OpCode = EXPRESSION_OPCODE_FROM_LINK (Link);
-
- Link = GetNextNode (&Expression->OpCodeListHead, Link);
-
- ZeroMem (&Data1, sizeof (EFI_HII_VALUE));
- ZeroMem (&Data2, sizeof (EFI_HII_VALUE));
- ZeroMem (&Data3, sizeof (EFI_HII_VALUE));
-
- Value = &Data3;
- Value->Type = EFI_IFR_TYPE_BOOLEAN;
- Status = EFI_SUCCESS;
-
- //
- // Check whether it is a constant expression or not
- //
- if (*ConstantExpression) {
- *ConstantExpression = IsConstantExpressionOpCode (OpCode->Operand);
- }
-
- switch (OpCode->Operand) {
- //
- // Built-in functions
- //
- case EFI_IFR_EQ_ID_VAL_OP:
- Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);
- if (Question == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- UpdateHiiValue (FormSet, Question);
- Result = CompareHiiValue (&Question->HiiValue, &OpCode->Value, FormSet);
- if ((EFI_STATUS)Result == EFI_INVALID_PARAMETER) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);
- break;
-
- case EFI_IFR_EQ_ID_ID_OP:
- Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);
- if (Question == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Question2 = IdToQuestion (FormSet, Form, OpCode->QuestionId2);
- if (Question2 == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- UpdateHiiValue (FormSet, Question);
- UpdateHiiValue (FormSet, Question2);
- Result = CompareHiiValue (&Question->HiiValue, &Question2->HiiValue, FormSet);
- if ((EFI_STATUS)Result == EFI_INVALID_PARAMETER) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);
- break;
-
- case EFI_IFR_EQ_ID_VAL_LIST_OP:
-
- Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);
- if (Question == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- UpdateHiiValue (FormSet, Question);
- Value->Value.b = FALSE;
- for (Index =0; Index < OpCode->ListLength; Index++) {
- if (Question->HiiValue.Value.u16 == OpCode->ValueList[Index]) {
- Value->Value.b = TRUE;
- break;
- }
- }
- break;
-
- case EFI_IFR_DUP_OP:
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = PushExpression (Value);
- break;
-
- case EFI_IFR_QUESTION_REF1_OP:
- case EFI_IFR_THIS_OP:
- Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);
- if (Question == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- UpdateHiiValue (FormSet, Question);
- Value = &Question->HiiValue;
- break;
-
- case EFI_IFR_SECURITY_OP:
- //
- // Do nothing, as no need for static scaning
- //
- break;
-
- case EFI_IFR_GET_OP:
- //
- // Get Value from VarStore buffer, EFI VarStore, Name/Value VarStore.
- //
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- Value->Value.u8 = 0;
- if (OpCode->VarStorage != NULL) {
- switch (OpCode->VarStorage->Type) {
- case EFI_IFR_VARSTORE_OP:
- //
- // Get value from Buffer
- //
- Value->Type = OpCode->ValueType;
- CopyMem (&Value->Value, OpCode->VarStorage->Buffer + OpCode->VarStoreInfo.VarOffset, OpCode->ValueWidth);
- break;
-
- case EFI_IFR_VARSTORE_EFI_OP:
- //
- // Get value from Buffer
- //
- if (OpCode->VarStorage->NewEfiVarstore) {
- Value->Type = OpCode->ValueType;
- CopyMem (&Value->Value, OpCode->VarStorage->Buffer + OpCode->VarStoreInfo.VarOffset, OpCode->ValueWidth);
- } else {
- CopyMem (&Value->Value, OpCode->VarStorage->Buffer, OpCode->ValueWidth);
- }
-
-
- break;
- case EFI_HII_VARSTORE_NAME_VALUE:
- if (OpCode->ValueType != EFI_IFR_TYPE_STRING) {
- //
- // Get value from string except for STRING value.
- //
- Status = GetValueByName (OpCode->VarStorage, OpCode->ValueName, &StrPtr);
- if (!EFI_ERROR (Status)) {
- ASSERT (StrPtr != NULL);
- TempLength = FceStrLen (StrPtr);
- if (OpCode->ValueWidth >= ((TempLength + 1) / 2)) {
- Value->Type = OpCode->ValueType;
- TempBuffer = (UINT8 *) &Value->Value;
- ZeroMem (TempStr, sizeof (TempStr));
- for (Index = 0; Index < TempLength; Index ++) {
- TempStr[0] = StrPtr[TempLength - Index - 1];
- DigitUint8 = (UINT8) FceStrHexToUint64 (TempStr);
- if ((Index & 1) == 0) {
- TempBuffer [Index/2] = DigitUint8;
- } else {
- TempBuffer [Index/2] = (UINT8) ((DigitUint8 << 4) + TempBuffer [Index/2]);
- }
- }
- }
- free (StrPtr);
- StrPtr = NULL;
- }
- }
- break;
- default:
- //
- // Not recognize storage.
- //
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
- }
-
- break;
-
- case EFI_IFR_QUESTION_REF3_OP:
- if (OpCode->DevicePath == 0) {
- //
- // EFI_IFR_QUESTION_REF3
- // Pop an expression from the expression stack
- //
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // Validate the expression value
- //
- if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Question = IdToQuestion (FormSet, Form, Value->Value.u16);
- if (Question == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- //
- // push the questions' value on to the expression stack
- //
- Value = &Question->HiiValue;
- } else {
- //
- // BUGBUG: push 0 for EFI_IFR_QUESTION_REF3_2 and EFI_IFR_QUESTION_REF3_3,
- // since it is impractical to evaluate the value of a Question in another
- // Hii Package list.
- //
- ZeroMem (Value, sizeof (EFI_HII_VALUE));
- }
- break;
-
- case EFI_IFR_RULE_REF_OP:
- //
- // Find expression for this rule
- //
- RuleExpression = RuleIdToExpression (Form, OpCode->RuleId);
- if (RuleExpression == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- //
- // Evaluate this rule expression
- //
- Status = EvaluateExpression (FormSet, Form, RuleExpression, ConstantExpression);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Value = &RuleExpression->Result;
- break;
-
- case EFI_IFR_STRING_REF1_OP:
- Value->Type = EFI_IFR_TYPE_STRING;
- Value->Value.string = OpCode->Value.Value.string;
- break;
-
- //
- // Constant
- //
- case EFI_IFR_TRUE_OP:
- case EFI_IFR_FALSE_OP:
- case EFI_IFR_ONE_OP:
- case EFI_IFR_ONES_OP:
- case EFI_IFR_UINT8_OP:
- case EFI_IFR_UINT16_OP:
- case EFI_IFR_UINT32_OP:
- case EFI_IFR_UINT64_OP:
- case EFI_IFR_UNDEFINED_OP:
- case EFI_IFR_VERSION_OP:
- case EFI_IFR_ZERO_OP:
- Value = &OpCode->Value;
- break;
-
- //
- // unary-op
- //
- case EFI_IFR_LENGTH_OP:
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Value->Type != EFI_IFR_TYPE_STRING) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- StrPtr = GetToken (Value->Value.string, FormSet->UnicodeBinary);
- if (StrPtr == NULL) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Value->Value.u64 = FceStrLen (StrPtr);
- FreePool (StrPtr);
- break;
-
- case EFI_IFR_NOT_OP:
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Value->Type != EFI_IFR_TYPE_BOOLEAN) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- Value->Value.b = (BOOLEAN) (!Value->Value.b);
- break;
-
- case EFI_IFR_QUESTION_REF2_OP:
- //
- // Pop an expression from the expression stack
- //
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // Validate the expression value
- //
- if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Question = IdToQuestion (FormSet, Form, Value->Value.u16);
- if (Question == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Value = &Question->HiiValue;
- break;
-
- case EFI_IFR_STRING_REF2_OP:
- //
- // Pop an expression from the expression stack
- //
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // Validate the expression value
- //
- if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Value->Type = EFI_IFR_TYPE_STRING;
- StrPtr = GetToken (Value->Value.u16, FormSet->UnicodeBinary);
- if (StrPtr == NULL) {
- //
- // If String not exit, push an empty string
- //
- //Value->Value.string = NewString (gEmptyString, FormSet->HiiHandle);
- } else {
- Index = (UINT16) Value->Value.u64;
- Value->Value.string = Index;
- FreePool (StrPtr);
- }
- break;
-
- case EFI_IFR_TO_BOOLEAN_OP:
- //
- // Pop an expression from the expression stack
- //
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // Convert an expression to a Boolean
- //
- if (Value->Type <= EFI_IFR_TYPE_DATE) {
- //
- // When converting from an unsigned integer, zero will be converted to
- // FALSE and any other value will be converted to TRUE.
- //
- Value->Value.b = (BOOLEAN) (Value->Value.u64 != 0);
-
- Value->Type = EFI_IFR_TYPE_BOOLEAN;
- } else if (Value->Type == EFI_IFR_TYPE_STRING) {
- //
- // When converting from a string, if case-insensitive compare
- // with "true" is True, then push True. If a case-insensitive compare
- // with "false" is True, then push False. Otherwise, push Undefined.
- //
- StrPtr = GetToken (Value->Value.string, FormSet->UnicodeBinary);
- if (StrPtr == NULL) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- IfrStrToUpper (StrPtr);
- if (FceStrCmp (StrPtr, L"TRUE") == 0){
- Value->Value.b = TRUE;
- } else if (FceStrCmp (StrPtr, L"FALSE") == 0) {
- Value->Value.b = FALSE;
- } else {
- Status = EFI_INVALID_PARAMETER;
- FreePool (StrPtr);
- goto Done;
- }
- FreePool (StrPtr);
- Value->Type = EFI_IFR_TYPE_BOOLEAN;
- }
- break;
-
- case EFI_IFR_TO_STRING_OP:
- //Status = IfrToString (FormSet, OpCode->Format, Value);
- break;
-
- case EFI_IFR_TO_UINT_OP:
- Status = IfrToUint (FormSet, Value);
- break;
-
- case EFI_IFR_TO_LOWER_OP:
- case EFI_IFR_TO_UPPER_OP:
-
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Value->Type != EFI_IFR_TYPE_STRING) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
-
- StrPtr = GetToken (Value->Value.string, FormSet->UnicodeBinary);
- if (StrPtr == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- //
- // Do nothing here, as these two Opcode are to change or update the String Package
- //
- FreePool (StrPtr);
- break;
-
- case EFI_IFR_BITWISE_NOT_OP:
- //
- // Pop an expression from the expression stack
- //
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Value->Type > EFI_IFR_TYPE_DATE) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Value->Value.u64 = ~Value->Value.u64;
- break;
-
- case EFI_IFR_SET_OP:
- //
- // Pop an expression from the expression stack
- //
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- Data1.Type = EFI_IFR_TYPE_BOOLEAN;
- Data1.Value.b = FALSE;
- //
- // Not support SetOpcode for static scaning
- //
- if (OpCode->VarStorage != NULL) {
- switch (OpCode->VarStorage->Type) {
-
- case EFI_IFR_VARSTORE_OP:
- CopyMem (OpCode->VarStorage->Buffer + OpCode->VarStoreInfo.VarOffset, &Value->Value, OpCode->ValueWidth);
- Data1.Value.b = TRUE;
- break;
- case EFI_IFR_VARSTORE_EFI_OP:
- if (OpCode->VarStorage->NewEfiVarstore) {
- CopyMem (OpCode->VarStorage->Buffer + OpCode->VarStoreInfo.VarOffset, &Value->Value, OpCode->ValueWidth);
- Data1.Value.b = TRUE;
- } else {
- CopyMem (OpCode->VarStorage->Buffer, &Value->Value, OpCode->ValueWidth);
- Data1.Value.b = TRUE;
- }
- break;
- case EFI_HII_VARSTORE_NAME_VALUE:
-
- break;
- break;
- default:
- //
- // Not recognize storage.
- //
- Status = EFI_UNSUPPORTED;
- goto Done;
- break;
- }
- Value = &Data1;
- }
- break;
-
- //
- // binary-op
- //
- case EFI_IFR_ADD_OP:
- case EFI_IFR_SUBTRACT_OP:
- case EFI_IFR_MULTIPLY_OP:
- case EFI_IFR_DIVIDE_OP:
- case EFI_IFR_MODULO_OP:
- case EFI_IFR_BITWISE_AND_OP:
- case EFI_IFR_BITWISE_OR_OP:
- case EFI_IFR_SHIFT_LEFT_OP:
- case EFI_IFR_SHIFT_RIGHT_OP:
- //
- // Pop an expression from the expression stack
- //
- Status = PopExpression (&Data2);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Data2.Type > EFI_IFR_TYPE_DATE) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- //
- // Pop another expression from the expression stack
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Data1.Type > EFI_IFR_TYPE_DATE) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
-
- switch (OpCode->Operand) {
- case EFI_IFR_ADD_OP:
- Value->Value.u64 = Data1.Value.u64 + Data2.Value.u64;
- break;
-
- case EFI_IFR_SUBTRACT_OP:
- Value->Value.u64 = Data1.Value.u64 - Data2.Value.u64;
- break;
-
- case EFI_IFR_MULTIPLY_OP:
- Value->Value.u64 = MultU64x32 (Data1.Value.u64, (UINT32) Data2.Value.u64);
- break;
-
- case EFI_IFR_DIVIDE_OP:
- Value->Value.u64 = DivU64x32 (Data1.Value.u64, (UINT32) Data2.Value.u64);
- break;
-
- case EFI_IFR_MODULO_OP:
- DivU64x32Remainder (Data1.Value.u64, (UINT32) Data2.Value.u64, &TempValue);
- Value->Value.u64 = TempValue;
- break;
-
- case EFI_IFR_BITWISE_AND_OP:
- Value->Value.u64 = Data1.Value.u64 & Data2.Value.u64;
- break;
-
- case EFI_IFR_BITWISE_OR_OP:
- Value->Value.u64 = Data1.Value.u64 | Data2.Value.u64;
- break;
-
- case EFI_IFR_SHIFT_LEFT_OP:
- Value->Value.u64 = LShiftU64 (Data1.Value.u64, (UINTN) Data2.Value.u64);
- break;
-
- case EFI_IFR_SHIFT_RIGHT_OP:
- Value->Value.u64 = RShiftU64 (Data1.Value.u64, (UINTN) Data2.Value.u64);
- break;
-
- default:
- break;
- }
- break;
-
- case EFI_IFR_AND_OP:
- case EFI_IFR_OR_OP:
- //
- // Two Boolean operator
- //
- Status = PopExpression (&Data2);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Data2.Type != EFI_IFR_TYPE_BOOLEAN) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- //
- // Pop another expression from the expression stack
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- if (OpCode->Operand == EFI_IFR_AND_OP) {
- Value->Value.b = (BOOLEAN) (Data1.Value.b && Data2.Value.b);
- } else {
- Value->Value.b = (BOOLEAN) (Data1.Value.b || Data2.Value.b);
- }
- break;
-
- case EFI_IFR_EQUAL_OP:
- case EFI_IFR_NOT_EQUAL_OP:
- case EFI_IFR_GREATER_EQUAL_OP:
- case EFI_IFR_GREATER_THAN_OP:
- case EFI_IFR_LESS_EQUAL_OP:
- case EFI_IFR_LESS_THAN_OP:
- //
- // Compare two integer, string, boolean or date/time
- //
- Status = PopExpression (&Data2);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if ((Data2.Type > EFI_IFR_TYPE_BOOLEAN) && (Data2.Type != EFI_IFR_TYPE_STRING)) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- //
- // Pop another expression from the expression stack
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Result = CompareHiiValue (&Data1, &Data2, FormSet);
- if ((EFI_STATUS)Result == EFI_INVALID_PARAMETER) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- switch (OpCode->Operand) {
- case EFI_IFR_EQUAL_OP:
- Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);
- break;
-
- case EFI_IFR_NOT_EQUAL_OP:
- Value->Value.b = (BOOLEAN) ((Result != 0) ? TRUE : FALSE);
- break;
-
- case EFI_IFR_GREATER_EQUAL_OP:
- Value->Value.b = (BOOLEAN) ((Result >= 0) ? TRUE : FALSE);
- break;
-
- case EFI_IFR_GREATER_THAN_OP:
- Value->Value.b = (BOOLEAN) ((Result > 0) ? TRUE : FALSE);
- break;
-
- case EFI_IFR_LESS_EQUAL_OP:
- Value->Value.b = (BOOLEAN) ((Result <= 0) ? TRUE : FALSE);
- break;
-
- case EFI_IFR_LESS_THAN_OP:
- Value->Value.b = (BOOLEAN) ((Result < 0) ? TRUE : FALSE);
- break;
-
- default:
- break;
- }
- break;
-
- case EFI_IFR_MATCH_OP:
- Status = IfrMatch (FormSet, Value);
- break;
-
- case EFI_IFR_CATENATE_OP:
- Status = IfrCatenate (FormSet, Value);
- break;
-
- //
- // ternary-op
- //
- case EFI_IFR_CONDITIONAL_OP:
- //
- // Pop third expression from the expression stack
- //
- Status = PopExpression (&Data3);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // Pop second expression from the expression stack
- //
- Status = PopExpression (&Data2);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // Pop first expression from the expression stack
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- if (Data1.Value.b) {
- Value = &Data3;
- } else {
- Value = &Data2;
- }
- break;
-
- case EFI_IFR_FIND_OP:
- Status = IfrFind (FormSet, OpCode->Format, Value);
- break;
-
- case EFI_IFR_MID_OP:
- Status = IfrMid (FormSet, Value);
- break;
-
- case EFI_IFR_TOKEN_OP:
- Status = IfrToken (FormSet, Value);
- break;
-
- case EFI_IFR_SPAN_OP:
- Status = IfrSpan (FormSet, OpCode->Flags, Value);
- break;
-
- case EFI_IFR_MAP_OP:
- //
- // Pop the check value
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- //
- // Check MapExpression list is valid.
- //
- if (OpCode->MapExpressionList.ForwardLink == NULL) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- //
- // Go through map expression list.
- //
- SubExpressionLink = GetFirstNode(&OpCode->MapExpressionList);
- while (!IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
- SubExpression = FORM_EXPRESSION_FROM_LINK (SubExpressionLink);
- //
- // Evaluate the first expression in this pair.
- //
- Status = EvaluateExpression (FormSet, Form, SubExpression, ConstantExpression);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- //
- // Compare the expression value with current value
- //
- if (CompareHiiValue (&Data1, &SubExpression->Result, FormSet) == 0) {
- //
- // Try get the map value.
- //
- SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);
- if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- SubExpression = FORM_EXPRESSION_FROM_LINK (SubExpressionLink);
- Status = EvaluateExpression (FormSet, Form, SubExpression, ConstantExpression);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- Value = &SubExpression->Result;
- break;
- }
- //
- // Skip the second expression on this pair.
- //
- SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);
- if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- //
- // Goto the first expression on next pair.
- //
- SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);
- }
-
- //
- // No map value is found.
- //
- if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- Value->Value.u8 = 0;
- }
- break;
-
- default:
- break;
- }
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = PushExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- }
-
- //
- // Pop the final result from expression stack
- //
- Value = &Data1;
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // After evaluating an expression, there should be only one value left on the expression stack
- //
- if (PopExpression (Value) != EFI_ACCESS_DENIED) {
- Status = EFI_INVALID_PARAMETER;
- }
-
-Done:
- RestoreExpressionEvaluationStackOffset (StackOffset);
- if (!EFI_ERROR (Status)) {
- CopyMem (&Expression->Result, Value, sizeof (EFI_HII_VALUE));
- }
-
- return Status;
-}
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