diff options
| author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
| commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
| tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /MdeModulePkg/Universal/SetupBrowserDxe/Expression.c | |
| parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
| download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz | |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'MdeModulePkg/Universal/SetupBrowserDxe/Expression.c')
| -rw-r--r-- | MdeModulePkg/Universal/SetupBrowserDxe/Expression.c | 3730 |
1 files changed, 0 insertions, 3730 deletions
diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Expression.c b/MdeModulePkg/Universal/SetupBrowserDxe/Expression.c deleted file mode 100644 index 688a1d66cb..0000000000 --- a/MdeModulePkg/Universal/SetupBrowserDxe/Expression.c +++ /dev/null @@ -1,3730 +0,0 @@ -/** @file
-Utility functions for expression evaluation.
-
-Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "Setup.h"
-
-//
-// 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;
-
-FORM_EXPRESSION **mFormExpressionStack = NULL;
-FORM_EXPRESSION **mFormExpressionEnd = NULL;
-FORM_EXPRESSION **mFormExpressionPointer = NULL;
-
-FORM_EXPRESSION **mStatementExpressionStack = NULL;
-FORM_EXPRESSION **mStatementExpressionEnd = NULL;
-FORM_EXPRESSION **mStatementExpressionPointer = NULL;
-
-FORM_EXPRESSION **mOptionExpressionStack = NULL;
-FORM_EXPRESSION **mOptionExpressionEnd = NULL;
-FORM_EXPRESSION **mOptionExpressionPointer = NULL;
-
-
-//
-// Unicode collation protocol interface
-//
-EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollation = NULL;
-EFI_USER_MANAGER_PROTOCOL *mUserManager = NULL;
-
-/**
- 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));
- if (Data->Type == EFI_IFR_TYPE_BUFFER) {
- (*StackPtr)->Buffer = AllocateCopyPool(Data->BufferLen, Data->Buffer);
- ASSERT ((*StackPtr)->Buffer != NULL);
- }
-
- *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;
- mFormExpressionPointer = mFormExpressionStack;
- mStatementExpressionPointer = mStatementExpressionStack;
- mOptionExpressionPointer = mOptionExpressionStack;
-}
-
-
-/**
- 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;
-}
-
-
-/**
- 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
- @param MemberSize The stack member size.
-
- @retval EFI_SUCCESS Grow stack success.
- @retval EFI_OUT_OF_RESOURCES No enough memory for stack space.
-
-**/
-EFI_STATUS
-GrowConditionalStack (
- IN OUT FORM_EXPRESSION ***Stack,
- IN OUT FORM_EXPRESSION ***StackPtr,
- IN OUT FORM_EXPRESSION ***StackEnd,
- IN UINTN MemberSize
- )
-{
- UINTN Size;
- FORM_EXPRESSION **NewStack;
-
- Size = EXPRESSION_STACK_SIZE_INCREMENT;
- if (*StackPtr != NULL) {
- Size = Size + (*StackEnd - *Stack);
- }
-
- NewStack = AllocatePool (Size * MemberSize);
- if (NewStack == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (*StackPtr != NULL) {
- //
- // Copy from Old Stack to the New Stack
- //
- CopyMem (
- NewStack,
- *Stack,
- (*StackEnd - *Stack) * MemberSize
- );
-
- //
- // 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 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
-PushConditionalStack (
- IN OUT FORM_EXPRESSION ***Stack,
- IN OUT FORM_EXPRESSION ***StackPtr,
- IN OUT FORM_EXPRESSION ***StackEnd,
- IN FORM_EXPRESSION **Data
- )
-{
- EFI_STATUS Status;
-
- //
- // Check for a stack overflow condition
- //
- if (*StackPtr >= *StackEnd) {
- //
- // Grow the stack
- //
- Status = GrowConditionalStack (Stack, StackPtr, StackEnd, sizeof (FORM_EXPRESSION *));
- if (EFI_ERROR (Status)) {
- return Status;
- }
- }
-
- //
- // Push the item onto the stack
- //
- CopyMem (*StackPtr, Data, sizeof (FORM_EXPRESSION *));
- *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
-PopConditionalStack (
- IN FORM_EXPRESSION **Stack,
- IN OUT FORM_EXPRESSION ***StackPtr,
- OUT FORM_EXPRESSION **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 (FORM_EXPRESSION *));
- return EFI_SUCCESS;
-
-}
-
-/**
- Get the expression list count.
-
- @param Level Which type this expression belong to. Form,
- statement or option?
-
- @retval >=0 The expression count
- @retval -1 Input parameter error.
-
-**/
-INTN
-GetConditionalExpressionCount (
- IN EXPRESS_LEVEL Level
- )
-{
- switch (Level) {
- case ExpressForm:
- return mFormExpressionPointer - mFormExpressionStack;
- case ExpressStatement:
- return mStatementExpressionPointer - mStatementExpressionStack;
- case ExpressOption:
- return mOptionExpressionPointer - mOptionExpressionStack;
- default:
- ASSERT (FALSE);
- return -1;
- }
-}
-
-/**
- Get the expression Buffer pointer.
-
- @param Level Which type this expression belong to. Form,
- statement or option?
-
- @retval The start pointer of the expression buffer or NULL.
-
-**/
-FORM_EXPRESSION **
-GetConditionalExpressionList (
- IN EXPRESS_LEVEL Level
- )
-{
- switch (Level) {
- case ExpressForm:
- return mFormExpressionStack;
- case ExpressStatement:
- return mStatementExpressionStack;
- case ExpressOption:
- return mOptionExpressionStack;
- default:
- ASSERT (FALSE);
- return NULL;
- }
-}
-
-
-/**
- Push the expression options onto the Stack.
-
- @param Pointer Pointer to the current expression.
- @param Level Which type this expression belong to. Form,
- statement or option?
-
- @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
-PushConditionalExpression (
- IN FORM_EXPRESSION *Pointer,
- IN EXPRESS_LEVEL Level
- )
-{
- switch (Level) {
- case ExpressForm:
- return PushConditionalStack (
- &mFormExpressionStack,
- &mFormExpressionPointer,
- &mFormExpressionEnd,
- &Pointer
- );
- case ExpressStatement:
- return PushConditionalStack (
- &mStatementExpressionStack,
- &mStatementExpressionPointer,
- &mStatementExpressionEnd,
- &Pointer
- );
- case ExpressOption:
- return PushConditionalStack (
- &mOptionExpressionStack,
- &mOptionExpressionPointer,
- &mOptionExpressionEnd,
- &Pointer
- );
- default:
- ASSERT (FALSE);
- return EFI_INVALID_PARAMETER;
- }
-}
-
-/**
- Pop the expression options from the Stack
-
- @param Level Which type this expression belong to. Form,
- statement or option?
-
- @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
-PopConditionalExpression (
- IN EXPRESS_LEVEL Level
- )
-{
- FORM_EXPRESSION *Pointer;
-
- switch (Level) {
- case ExpressForm:
- return PopConditionalStack (
- mFormExpressionStack,
- &mFormExpressionPointer,
- &Pointer
- );
-
- case ExpressStatement:
- return PopConditionalStack (
- mStatementExpressionStack,
- &mStatementExpressionPointer,
- &Pointer
- );
-
- case ExpressOption:
- return PopConditionalStack (
- mOptionExpressionStack,
- &mOptionExpressionPointer,
- &Pointer
- );
-
- default:
- ASSERT (FALSE);
- return EFI_INVALID_PARAMETER;
- }
-}
-
-
-/**
- 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;
-}
-
-/**
- Get Form given its FormId.
-
- @param FormSet The formset which contains this form.
- @param FormId Id of this form.
-
- @retval Pointer The form.
- @retval NULL Specified Form is not found in the formset.
-
-**/
-FORM_BROWSER_FORM *
-IdToForm (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN UINT16 FormId
- )
-{
- LIST_ENTRY *Link;
- FORM_BROWSER_FORM *Form;
-
- Link = GetFirstNode (&FormSet->FormListHead);
- while (!IsNull (&FormSet->FormListHead, Link)) {
- Form = FORM_BROWSER_FORM_FROM_LINK (Link);
-
- if (Form->FormId == FormId) {
- return Form;
- }
-
- Link = GetNextNode (&FormSet->FormListHead, Link);
- }
-
- return NULL;
-}
-
-
-/**
- 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 || Form == NULL) {
- //
- // 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) {
- //
- // EFI variable storage may be updated by Callback() asynchronous,
- // to keep synchronous, always reload the Question Value.
- //
- if (Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
- GetQuestionValue (FormSet, Form, Question, GetSetValueWithHiiDriver);
- }
-
- 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;
-}
-
-
-/**
- Locate the Unicode Collation Protocol interface for later use.
-
- @retval EFI_SUCCESS Protocol interface initialize success.
- @retval Other Protocol interface initialize failed.
-
-**/
-EFI_STATUS
-InitializeUnicodeCollationProtocol (
- VOID
- )
-{
- EFI_STATUS Status;
-
- if (mUnicodeCollation != NULL) {
- return EFI_SUCCESS;
- }
-
- //
- // BUGBUG: Proper impelmentation is to locate all Unicode Collation Protocol
- // instances first and then select one which support English language.
- // Current implementation just pick the first instance.
- //
- Status = gBS->LocateProtocol (
- &gEfiUnicodeCollation2ProtocolGuid,
- NULL,
- (VOID **) &mUnicodeCollation
- );
- return Status;
-}
-
-/**
- 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++;
- }
-}
-
-/**
- Check whether this value type can be transfer to EFI_IFR_TYPE_BUFFER type.
-
- EFI_IFR_TYPE_REF, EFI_IFR_TYPE_DATE and EFI_IFR_TYPE_TIME are converted to
- EFI_IFR_TYPE_BUFFER when do the value compare.
-
- @param Value Expression value to compare on.
-
- @retval TRUE This value type can be transter to EFI_IFR_TYPE_BUFFER type.
- @retval FALSE This value type can't be transter to EFI_IFR_TYPE_BUFFER type.
-
-**/
-BOOLEAN
-IsTypeInBuffer (
- IN EFI_HII_VALUE *Value
- )
-{
- switch (Value->Type) {
- case EFI_IFR_TYPE_BUFFER:
- case EFI_IFR_TYPE_DATE:
- case EFI_IFR_TYPE_TIME:
- case EFI_IFR_TYPE_REF:
- return TRUE;
-
- default:
- return FALSE;
- }
-}
-
-/**
- Check whether this value type can be transfer to EFI_IFR_TYPE_UINT64
-
- @param Value Expression value to compare on.
-
- @retval TRUE This value type can be transter to EFI_IFR_TYPE_BUFFER type.
- @retval FALSE This value type can't be transter to EFI_IFR_TYPE_BUFFER type.
-
-**/
-BOOLEAN
-IsTypeInUINT64 (
- IN EFI_HII_VALUE *Value
- )
-{
- 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:
- case EFI_IFR_TYPE_BOOLEAN:
- return TRUE;
-
- default:
- return FALSE;
- }
-}
-
-/**
- Return the buffer length for this value.
-
- EFI_IFR_TYPE_REF, EFI_IFR_TYPE_DATE and EFI_IFR_TYPE_TIME are converted to
- EFI_IFR_TYPE_BUFFER when do the value compare.
-
- @param Value Expression value to compare on.
-
- @retval BufLen Return the buffer length.
-
-**/
-UINT16
-GetLengthForValue (
- IN EFI_HII_VALUE *Value
- )
-{
- switch (Value->Type) {
- case EFI_IFR_TYPE_BUFFER:
- return Value->BufferLen;
-
- case EFI_IFR_TYPE_DATE:
- return (UINT16) sizeof (EFI_HII_DATE);
-
- case EFI_IFR_TYPE_TIME:
- return (UINT16) sizeof (EFI_HII_TIME);
-
- case EFI_IFR_TYPE_REF:
- return (UINT16) sizeof (EFI_HII_REF);
-
- default:
- return 0;
- }
-}
-
-/**
- Return the buffer pointer for this value.
-
- EFI_IFR_TYPE_REF, EFI_IFR_TYPE_DATE and EFI_IFR_TYPE_TIME are converted to
- EFI_IFR_TYPE_BUFFER when do the value compare.
-
- @param Value Expression value to compare on.
-
- @retval Buf Return the buffer pointer.
-
-**/
-UINT8 *
-GetBufferForValue (
- IN EFI_HII_VALUE *Value
- )
-{
- switch (Value->Type) {
- case EFI_IFR_TYPE_BUFFER:
- return Value->Buffer;
-
- case EFI_IFR_TYPE_DATE:
- return (UINT8 *) (&Value->Value.date);
-
- case EFI_IFR_TYPE_TIME:
- return (UINT8 *) (&Value->Value.time);
-
- case EFI_IFR_TYPE_REF:
- return (UINT8 *) (&Value->Value.ref);
-
- default:
- return NULL;
- }
-}
-
-/**
- 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 *String;
- CHAR16 *PrintFormat;
- CHAR16 Buffer[MAXIMUM_VALUE_CHARACTERS];
- UINT8 *TmpBuf;
- UINT8 *SrcBuf;
- UINTN SrcLen;
- 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:
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- UnicodeSPrint (Buffer, BufferSize, PrintFormat, Value.Value.u64);
- String = Buffer;
- break;
-
- case EFI_IFR_TYPE_STRING:
- CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));
- return EFI_SUCCESS;
-
- case EFI_IFR_TYPE_BOOLEAN:
- String = (Value.Value.b) ? L"True" : L"False";
- break;
-
- case EFI_IFR_TYPE_BUFFER:
- case EFI_IFR_TYPE_DATE:
- case EFI_IFR_TYPE_TIME:
- case EFI_IFR_TYPE_REF:
- //
- // + 3 is base on the unicode format, the length may be odd number,
- // so need 1 byte to align, also need 2 bytes for L'\0'.
- //
- if (Value.Type == EFI_IFR_TYPE_BUFFER) {
- SrcLen = Value.BufferLen;
- SrcBuf = Value.Buffer;
- } else {
- SrcBuf = GetBufferForValue(&Value);
- SrcLen = GetLengthForValue(&Value);
- }
-
- TmpBuf = AllocateZeroPool (SrcLen + 3);
- ASSERT (TmpBuf != NULL);
- if (Format == EFI_IFR_STRING_ASCII) {
- CopyMem (TmpBuf, SrcBuf, SrcLen);
- PrintFormat = L"%a";
- } else {
- // Format == EFI_IFR_STRING_UNICODE
- CopyMem (TmpBuf, SrcBuf, SrcLen * sizeof (CHAR16));
- PrintFormat = L"%s";
- }
- UnicodeSPrint (Buffer, sizeof (Buffer), PrintFormat, TmpBuf);
- String = Buffer;
- FreePool (TmpBuf);
- if (Value.Type == EFI_IFR_TYPE_BUFFER) {
- FreePool (Value.Buffer);
- }
- break;
-
- default:
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
-
- 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 && !IsTypeInBuffer(&Value)) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
-
- Status = EFI_SUCCESS;
- if (Value.Type == EFI_IFR_TYPE_STRING) {
- String = GetToken (Value.Value.string, FormSet->HiiHandle);
- if (String == NULL) {
- return EFI_NOT_FOUND;
- }
-
- IfrStrToUpper (String);
- StringPtr = StrStr (String, L"0X");
- if (StringPtr != NULL) {
- //
- // Hex string
- //
- Result->Value.u64 = StrHexToUint64 (String);
- } else {
- //
- // decimal string
- //
- Result->Value.u64 = StrDecimalToUint64 (String);
- }
- FreePool (String);
- } else if (IsTypeInBuffer(&Value)) {
- if (GetLengthForValue (&Value) > 8) {
- if (Value.Type == EFI_IFR_TYPE_BUFFER) {
- FreePool (Value.Buffer);
- }
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- Result->Value.u64 = *(UINT64*) GetBufferForValue (&Value);
- if (Value.Type == EFI_IFR_TYPE_BUFFER) {
- FreePool (Value.Buffer);
- }
- } 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[2];
- CHAR16 *String[2];
- UINTN Index;
- CHAR16 *StringPtr;
- UINTN Size;
- UINT16 Length0;
- UINT16 Length1;
- UINT8 *TmpBuf;
- UINTN MaxLen;
-
- //
- // String[0] - The second string
- // String[1] - The first string
- //
- String[0] = NULL;
- String[1] = NULL;
- StringPtr = NULL;
- Status = EFI_SUCCESS;
- ZeroMem (Value, sizeof (Value));
-
- Status = PopExpression (&Value[0]);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = PopExpression (&Value[1]);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- for (Index = 0; Index < 2; Index++) {
- if (Value[Index].Type != EFI_IFR_TYPE_STRING && !IsTypeInBuffer(&Value[Index])) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- if (Value[Index].Type == EFI_IFR_TYPE_STRING) {
- String[Index] = GetToken (Value[Index].Value.string, FormSet->HiiHandle);
- if (String[Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
- }
-
- if (Value[0].Type == EFI_IFR_TYPE_STRING) {
- Size = StrSize (String[0]);
- MaxLen = (StrSize (String[1]) + Size) / sizeof (CHAR16);
- StringPtr= AllocatePool (MaxLen * sizeof (CHAR16));
- ASSERT (StringPtr != NULL);
- StrCpyS (StringPtr, MaxLen, String[1]);
- StrCatS (StringPtr, MaxLen, String[0]);
-
- Result->Type = EFI_IFR_TYPE_STRING;
- Result->Value.string = NewString (StringPtr, FormSet->HiiHandle);
- } else {
- Result->Type = EFI_IFR_TYPE_BUFFER;
- Length0 = GetLengthForValue(&Value[0]);
- Length1 = GetLengthForValue(&Value[1]);
- Result->BufferLen = (UINT16) (Length0 + Length1);
-
- Result->Buffer = AllocateZeroPool (Result->BufferLen);
- ASSERT (Result->Buffer != NULL);
-
- TmpBuf = GetBufferForValue(&Value[0]);
- ASSERT (TmpBuf != NULL);
- CopyMem (Result->Buffer, TmpBuf, Length0);
- TmpBuf = GetBufferForValue(&Value[1]);
- ASSERT (TmpBuf != NULL);
- CopyMem (&Result->Buffer[Length0], TmpBuf, Length1);
- }
-Done:
- if (Value[0].Buffer != NULL) {
- FreePool (Value[0].Buffer);
- }
- if (Value[1].Buffer != NULL) {
- FreePool (Value[1].Buffer);
- }
- 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[2];
- CHAR16 *String[2];
- UINTN Index;
-
- //
- // String[0] - The string to search
- // String[1] - pattern
- //
- String[0] = NULL;
- String[1] = NULL;
- Status = EFI_SUCCESS;
- ZeroMem (Value, sizeof (Value));
-
- Status = PopExpression (&Value[0]);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = PopExpression (&Value[1]);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- for (Index = 0; Index < 2; Index++) {
- if (Value[Index].Type != EFI_IFR_TYPE_STRING) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- String[Index] = GetToken (Value[Index].Value.string, FormSet->HiiHandle);
- if (String [Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- Result->Type = EFI_IFR_TYPE_BOOLEAN;
- Result->Value.b = mUnicodeCollation->MetaiMatch (mUnicodeCollation, 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_MATCH2.
-
- @param FormSet Formset which contains this opcode.
- @param SyntaxType Syntax type for match2.
- @param Result Evaluation result for this opcode.
-
- @retval EFI_SUCCESS Opcode evaluation success.
- @retval Other Opcode evaluation failed.
-
-**/
-EFI_STATUS
-IfrMatch2 (
- IN FORM_BROWSER_FORMSET *FormSet,
- IN EFI_GUID *SyntaxType,
- OUT EFI_HII_VALUE *Result
- )
-{
- EFI_STATUS Status;
- EFI_HII_VALUE Value[2];
- CHAR16 *String[2];
- UINTN Index;
- UINTN GuidIndex;
- EFI_HANDLE *HandleBuffer;
- UINTN BufferSize;
- EFI_REGULAR_EXPRESSION_PROTOCOL *RegularExpressionProtocol;
- UINTN RegExSyntaxTypeListSize;
- EFI_REGEX_SYNTAX_TYPE *RegExSyntaxTypeList;
- UINTN CapturesCount;
-
- //
- // String[0] - The string to search
- // String[1] - pattern
- //
- String[0] = NULL;
- String[1] = NULL;
- HandleBuffer = NULL;
- RegExSyntaxTypeList = NULL;
- Status = EFI_SUCCESS;
- ZeroMem (Value, sizeof (Value));
-
- Status = PopExpression (&Value[0]);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = PopExpression (&Value[1]);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- for (Index = 0; Index < 2; Index++) {
- if (Value[Index].Type != EFI_IFR_TYPE_STRING) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- String[Index] = GetToken (Value[Index].Value.string, FormSet->HiiHandle);
- if (String [Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- BufferSize = 0;
- HandleBuffer = NULL;
- Status = gBS->LocateHandle(
- ByProtocol,
- &gEfiRegularExpressionProtocolGuid,
- NULL,
- &BufferSize,
- HandleBuffer);
- if (Status == EFI_BUFFER_TOO_SMALL) {
- HandleBuffer = AllocateZeroPool(BufferSize);
- if (HandleBuffer == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
- Status = gBS->LocateHandle(
- ByProtocol,
- &gEfiRegularExpressionProtocolGuid,
- NULL,
- &BufferSize,
- HandleBuffer);
-
- }
-
- if (EFI_ERROR (Status)) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- ASSERT (HandleBuffer != NULL);
- for ( Index = 0; Index < BufferSize / sizeof(EFI_HANDLE); Index ++) {
- Status = gBS->HandleProtocol (
- HandleBuffer[Index],
- &gEfiRegularExpressionProtocolGuid,
- (VOID**)&RegularExpressionProtocol
- );
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- RegExSyntaxTypeListSize = 0;
- RegExSyntaxTypeList = NULL;
-
- Status = RegularExpressionProtocol->GetInfo (
- RegularExpressionProtocol,
- &RegExSyntaxTypeListSize,
- RegExSyntaxTypeList
- );
- if (Status == EFI_BUFFER_TOO_SMALL) {
- RegExSyntaxTypeList = AllocateZeroPool(RegExSyntaxTypeListSize);
- if (RegExSyntaxTypeList == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
- Status = RegularExpressionProtocol->GetInfo (
- RegularExpressionProtocol,
- &RegExSyntaxTypeListSize,
- RegExSyntaxTypeList
- );
- } else if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- for (GuidIndex = 0; GuidIndex < RegExSyntaxTypeListSize / sizeof(EFI_GUID); GuidIndex++) {
- if (CompareGuid (&RegExSyntaxTypeList[GuidIndex], SyntaxType)) {
- //
- // Find the match type, return the value.
- //
- Result->Type = EFI_IFR_TYPE_BOOLEAN;
- Status = RegularExpressionProtocol->MatchString (
- RegularExpressionProtocol,
- String[0],
- String[1],
- SyntaxType,
- &Result->Value.b,
- NULL,
- &CapturesCount
- );
- goto Done;
- }
- }
-
- if (RegExSyntaxTypeList != NULL) {
- FreePool (RegExSyntaxTypeList);
- }
- }
-
- //
- // Type specified by SyntaxType is not supported
- // in any of the EFI_REGULAR_EXPRESSION_PROTOCOL instances.
- //
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
-
-Done:
- if (String[0] != NULL) {
- FreePool (String[0]);
- }
- if (String[1] != NULL) {
- FreePool (String[1]);
- }
- if (RegExSyntaxTypeList != NULL) {
- FreePool (RegExSyntaxTypeList);
- }
- if (HandleBuffer != NULL) {
- FreePool (HandleBuffer);
- }
- 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[3];
- CHAR16 *String[2];
- UINTN Base;
- CHAR16 *StringPtr;
- UINTN Index;
-
- ZeroMem (Value, sizeof (Value));
-
- if (Format > EFI_IFR_FF_CASE_INSENSITIVE) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = PopExpression (&Value[0]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[1]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[2]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- Base = (UINTN) Value[0].Value.u64;
-
- //
- // String[0] - sub-string
- // String[1] - The string to search
- //
- String[0] = NULL;
- String[1] = NULL;
- for (Index = 0; Index < 2; Index++) {
- if (Value[Index + 1].Type != EFI_IFR_TYPE_STRING) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- String[Index] = GetToken (Value[Index + 1].Value.string, FormSet->HiiHandle);
- 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 >= StrLen (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[3];
- CHAR16 *String;
- UINTN Base;
- UINTN Length;
- CHAR16 *SubString;
- UINT16 BufferLen;
- UINT8 *Buffer;
-
- ZeroMem (Value, sizeof (Value));
-
- Status = PopExpression (&Value[0]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[1]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[2]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- Length = (UINTN) Value[0].Value.u64;
-
- if (Value[1].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- Base = (UINTN) Value[1].Value.u64;
-
- if (Value[2].Type != EFI_IFR_TYPE_STRING && !IsTypeInBuffer(&Value[2])) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- if (Value[2].Type == EFI_IFR_TYPE_STRING) {
- String = GetToken (Value[2].Value.string, FormSet->HiiHandle);
- if (String == NULL) {
- return EFI_NOT_FOUND;
- }
-
- if (Length == 0 || Base >= StrLen (String)) {
- SubString = gEmptyString;
- } else {
- SubString = String + Base;
- if ((Base + Length) < StrLen (String)) {
- SubString[Length] = L'\0';
- }
- }
-
- Result->Type = EFI_IFR_TYPE_STRING;
- Result->Value.string = NewString (SubString, FormSet->HiiHandle);
-
- FreePool (String);
- } else {
- BufferLen = GetLengthForValue (&Value[2]);
- Buffer = GetBufferForValue (&Value[2]);
-
- Result->Type = EFI_IFR_TYPE_BUFFER;
- if (Length == 0 || Base >= BufferLen) {
- Result->BufferLen = 0;
- Result->Buffer = NULL;
- } else {
- Result->BufferLen = (UINT16)((BufferLen - Base) < Length ? (BufferLen - Base) : Length);
- Result->Buffer = AllocateZeroPool (Result->BufferLen);
- ASSERT (Result->Buffer != NULL);
- CopyMem (Result->Buffer, &Buffer[Base], Result->BufferLen);
- }
-
- if (Value[2].Type == EFI_IFR_TYPE_BUFFER) {
- FreePool (Value[2].Buffer);
- }
- }
-
- 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[3];
- CHAR16 *String[2];
- UINTN Count;
- CHAR16 *Delimiter;
- CHAR16 *SubString;
- CHAR16 *StringPtr;
- UINTN Index;
-
- ZeroMem (Value, sizeof (Value));
-
- Status = PopExpression (&Value[0]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[1]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[2]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- Count = (UINTN) Value[0].Value.u64;
-
- //
- // String[0] - Delimiter
- // String[1] - The string to search
- //
- String[0] = NULL;
- String[1] = NULL;
- for (Index = 0; Index < 2; Index++) {
- if (Value[Index + 1].Type != EFI_IFR_TYPE_STRING) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- String[Index] = GetToken (Value[Index + 1].Value.string, FormSet->HiiHandle);
- 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 + StrLen (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[3];
- CHAR16 *String[2];
- CHAR16 *Charset;
- UINTN Base;
- UINTN Index;
- CHAR16 *StringPtr;
- BOOLEAN Found;
-
- ZeroMem (Value, sizeof (Value));
-
- Status = PopExpression (&Value[0]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[1]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = PopExpression (&Value[2]);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- return EFI_SUCCESS;
- }
- Base = (UINTN) Value[0].Value.u64;
-
- //
- // String[0] - Charset
- // String[1] - The string to search
- //
- String[0] = NULL;
- String[1] = NULL;
- for (Index = 0; Index < 2; Index++) {
- if (Value[Index + 1].Type != EFI_IFR_TYPE_STRING) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- String[Index] = GetToken (Value[Index + 1].Value.string, FormSet->HiiHandle);
- if (String [Index] == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- if (Base >= StrLen (String[1])) {
- Result->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- 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;
-}
-
-/**
- Get UINT64 type value.
-
- @param Value Input Hii value.
-
- @retval UINT64 Return the UINT64 type value.
-
-**/
-UINT64
-HiiValueToUINT64 (
- IN EFI_HII_VALUE *Value
- )
-{
- UINT64 RetVal;
-
- RetVal = 0;
-
- switch (Value->Type) {
- case EFI_IFR_TYPE_NUM_SIZE_8:
- RetVal = Value->Value.u8;
- break;
-
- case EFI_IFR_TYPE_NUM_SIZE_16:
- RetVal = Value->Value.u16;
- break;
-
- case EFI_IFR_TYPE_NUM_SIZE_32:
- RetVal = Value->Value.u32;
- break;
-
- case EFI_IFR_TYPE_BOOLEAN:
- RetVal = Value->Value.b;
- break;
-
- case EFI_IFR_TYPE_DATE:
- RetVal = *(UINT64*) &Value->Value.date;
- break;
-
- case EFI_IFR_TYPE_TIME:
- RetVal = (*(UINT64*) &Value->Value.time) & 0xffffff;
- break;
-
- default:
- RetVal = Value->Value.u64;
- break;
- }
-
- return RetVal;
-}
-
-/**
- Compare two Hii value.
-
- @param Value1 Expression value to compare on left-hand.
- @param Value2 Expression value to compare on right-hand.
- @param Result Return value after compare.
- retval 0 Two operators equal.
- return Positive value if Value1 is greater than Value2.
- retval Negative value if Value1 is less than Value2.
- @param HiiHandle Only required for string compare.
-
- @retval other Could not perform compare on two values.
- @retval EFI_SUCCESS Compare the value success.
-
-**/
-EFI_STATUS
-CompareHiiValue (
- IN EFI_HII_VALUE *Value1,
- IN EFI_HII_VALUE *Value2,
- OUT INTN *Result,
- IN EFI_HII_HANDLE HiiHandle OPTIONAL
- )
-{
- INT64 Temp64;
- CHAR16 *Str1;
- CHAR16 *Str2;
- UINTN Len;
- UINT8 *Buf1;
- UINT16 Buf1Len;
- UINT8 *Buf2;
- UINT16 Buf2Len;
-
- if (Value1->Type == EFI_IFR_TYPE_STRING && Value2->Type == EFI_IFR_TYPE_STRING) {
- if (Value1->Value.string == 0 || Value2->Value.string == 0) {
- //
- // StringId 0 is reserved
- //
- return EFI_INVALID_PARAMETER;
- }
-
- if (Value1->Value.string == Value2->Value.string) {
- *Result = 0;
- return EFI_SUCCESS;
- }
-
- Str1 = GetToken (Value1->Value.string, HiiHandle);
- if (Str1 == NULL) {
- //
- // String not found
- //
- return EFI_NOT_FOUND;
- }
-
- Str2 = GetToken (Value2->Value.string, HiiHandle);
- if (Str2 == NULL) {
- FreePool (Str1);
- return EFI_NOT_FOUND;
- }
-
- *Result = StrCmp (Str1, Str2);
-
- FreePool (Str1);
- FreePool (Str2);
-
- return EFI_SUCCESS;
- }
-
- //
- // Take types(date, time, ref, buffer) as buffer
- //
- if (IsTypeInBuffer(Value1) && IsTypeInBuffer(Value2)) {
- Buf1 = GetBufferForValue(Value1);
- Buf1Len = GetLengthForValue(Value1);
- Buf2 = GetBufferForValue(Value2);
- Buf2Len = GetLengthForValue(Value2);
-
- Len = Buf1Len > Buf2Len ? Buf2Len : Buf1Len;
- *Result = CompareMem (Buf1, Buf2, Len);
- if ((*Result == 0) && (Buf1Len != Buf2Len)) {
- //
- // In this case, means base on samll number buffer, the data is same
- // So which value has more data, which value is bigger.
- //
- *Result = Buf1Len > Buf2Len ? 1 : -1;
- }
- return EFI_SUCCESS;
- }
-
- //
- // Take types(integer, boolean) as integer
- //
- if (IsTypeInUINT64(Value1) && IsTypeInUINT64(Value2)) {
- Temp64 = HiiValueToUINT64(Value1) - HiiValueToUINT64(Value2);
- if (Temp64 > 0) {
- *Result = 1;
- } else if (Temp64 < 0) {
- *Result = -1;
- } else {
- *Result = 0;
- }
-
- return EFI_SUCCESS;
- }
-
- return EFI_UNSUPPORTED;
-}
-
-/**
- Check if current user has the privilege specified by the permissions GUID.
-
- @param[in] Guid A GUID specifying setup access permissions.
-
- @retval TRUE Current user has the privilege.
- @retval FALSE Current user does not have the privilege.
-**/
-BOOLEAN
-CheckUserPrivilege (
- IN EFI_GUID *Guid
- )
-{
- EFI_STATUS Status;
- EFI_USER_PROFILE_HANDLE UserProfileHandle;
- EFI_USER_INFO_HANDLE UserInfoHandle;
- EFI_USER_INFO *UserInfo;
- EFI_GUID *UserPermissionsGuid;
- UINTN UserInfoSize;
- UINTN AccessControlDataSize;
- EFI_USER_INFO_ACCESS_CONTROL *AccessControl;
- UINTN RemainSize;
-
- if (mUserManager == NULL) {
- Status = gBS->LocateProtocol (
- &gEfiUserManagerProtocolGuid,
- NULL,
- (VOID **) &mUserManager
- );
- if (EFI_ERROR (Status)) {
- ///
- /// If the system does not support user management, then it is assumed that
- /// all users have admin privilege and evaluation of each EFI_IFR_SECURITY
- /// op-code is always TRUE.
- ///
- return TRUE;
- }
- }
-
- Status = mUserManager->Current (mUserManager, &UserProfileHandle);
- ASSERT_EFI_ERROR (Status);
-
- ///
- /// Enumerate all user information of the current user profile
- /// to look for any EFI_USER_INFO_ACCESS_SETUP record.
- ///
-
- for (UserInfoHandle = NULL;;) {
- Status = mUserManager->GetNextInfo (mUserManager, UserProfileHandle, &UserInfoHandle);
- if (EFI_ERROR (Status)) {
- break;
- }
-
- UserInfoSize = 0;
- Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, NULL, &UserInfoSize);
- if (Status != EFI_BUFFER_TOO_SMALL) {
- continue;
- }
-
- UserInfo = (EFI_USER_INFO *) AllocatePool (UserInfoSize);
- if (UserInfo == NULL) {
- break;
- }
-
- Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, UserInfo, &UserInfoSize);
- if (EFI_ERROR (Status) ||
- UserInfo->InfoType != EFI_USER_INFO_ACCESS_POLICY_RECORD ||
- UserInfo->InfoSize <= sizeof (EFI_USER_INFO)) {
- FreePool (UserInfo);
- continue;
- }
-
- RemainSize = UserInfo->InfoSize - sizeof (EFI_USER_INFO);
- AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)(UserInfo + 1);
- while (RemainSize >= sizeof (EFI_USER_INFO_ACCESS_CONTROL)) {
- if (RemainSize < AccessControl->Size || AccessControl->Size < sizeof (EFI_USER_INFO_ACCESS_CONTROL)) {
- break;
- }
- if (AccessControl->Type == EFI_USER_INFO_ACCESS_SETUP) {
- ///
- /// Check if current user has the privilege specified by the permissions GUID.
- ///
-
- UserPermissionsGuid = (EFI_GUID *)(AccessControl + 1);
- AccessControlDataSize = AccessControl->Size - sizeof (EFI_USER_INFO_ACCESS_CONTROL);
- while (AccessControlDataSize >= sizeof (EFI_GUID)) {
- if (CompareGuid (Guid, UserPermissionsGuid)) {
- FreePool (UserInfo);
- return TRUE;
- }
- UserPermissionsGuid++;
- AccessControlDataSize -= sizeof (EFI_GUID);
- }
- }
- RemainSize -= AccessControl->Size;
- AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)((UINT8 *)AccessControl + AccessControl->Size);
- }
-
- FreePool (UserInfo);
- }
- return FALSE;
-}
-
-/**
- Get question value from the predefined formset.
-
- @param DevicePath The driver's device path which produece the formset data.
- @param InputHiiHandle The hii handle associate with the formset data.
- @param FormSetGuid The formset guid which include the question.
- @param QuestionId The question id which need to get value from.
- @param Value The return data about question's value.
-
- @retval TRUE Get the question value success.
- @retval FALSE Get the question value failed.
-**/
-BOOLEAN
-GetQuestionValueFromForm (
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
- IN EFI_HII_HANDLE InputHiiHandle,
- IN EFI_GUID *FormSetGuid,
- IN EFI_QUESTION_ID QuestionId,
- OUT EFI_HII_VALUE *Value
- )
-{
- EFI_STATUS Status;
- EFI_HII_HANDLE HiiHandle;
- FORM_BROWSER_STATEMENT *Question;
- FORM_BROWSER_FORMSET *FormSet;
- FORM_BROWSER_FORM *Form;
- BOOLEAN GetTheVal;
- LIST_ENTRY *Link;
-
- //
- // The input parameter DevicePath or InputHiiHandle must have one valid input.
- //
- ASSERT ((DevicePath != NULL && InputHiiHandle == NULL) ||
- (DevicePath == NULL && InputHiiHandle != NULL) );
-
- GetTheVal = TRUE;
- HiiHandle = NULL;
- Question = NULL;
- Form = NULL;
-
- //
- // Get HiiHandle.
- //
- if (DevicePath != NULL) {
- HiiHandle = DevicePathToHiiHandle (DevicePath, FormSetGuid);
- if (HiiHandle == NULL) {
- return FALSE;
- }
- } else {
- HiiHandle = InputHiiHandle;
- }
- ASSERT (HiiHandle != NULL);
-
- //
- // Get the formset data include this question.
- //
- FormSet = AllocateZeroPool (sizeof (FORM_BROWSER_FORMSET));
- ASSERT (FormSet != NULL);
- Status = InitializeFormSet(HiiHandle, FormSetGuid, FormSet);
- if (EFI_ERROR (Status)) {
- GetTheVal = FALSE;
- goto Done;
- }
-
- //
- // Base on the Question Id to get the question info.
- //
- Question = IdToQuestion(FormSet, NULL, QuestionId);
- if (Question == NULL) {
- GetTheVal = FALSE;
- goto Done;
- }
-
- //
- // Search form 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) {
- break;
- }
-
- Link = GetNextNode (&FormSet->FormListHead, Link);
- Form = NULL;
- }
- ASSERT (Form != NULL);
-
- //
- // Get the question value.
- //
- Status = GetQuestionValue(FormSet, Form, Question, GetSetValueWithEditBuffer);
- if (EFI_ERROR (Status)) {
- GetTheVal = FALSE;
- goto Done;
- }
-
- CopyMem (Value, &Question->HiiValue, sizeof (EFI_HII_VALUE));
-
-Done:
- //
- // Clean the formset structure and restore the global parameter.
- //
- if (FormSet != NULL) {
- DestroyFormSet (FormSet);
- }
-
- return GetTheVal;
-}
-
-/**
- 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.
-
- @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
- )
-{
- 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;
- CHAR16 *NameValue;
- UINT32 TempValue;
- LIST_ENTRY *SubExpressionLink;
- FORM_EXPRESSION *SubExpression;
- UINTN StackOffset;
- UINTN TempLength;
- CHAR16 TempStr[5];
- UINT8 DigitUint8;
- UINT8 *TempBuffer;
- EFI_TIME EfiTime;
- EFI_HII_VALUE QuestionVal;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
-
- StrPtr = NULL;
-
- //
- // 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;
-
- switch (OpCode->Operand) {
- //
- // Built-in functions
- //
- case EFI_IFR_EQ_ID_VAL_OP:
- Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);
- if (Question == NULL) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Status = CompareHiiValue (&Question->HiiValue, &OpCode->Value, &Result, NULL);
- if (Status == EFI_UNSUPPORTED) {
- Status = EFI_SUCCESS;
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- if (EFI_ERROR (Status)) {
- 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) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Question2 = IdToQuestion (FormSet, Form, OpCode->QuestionId2);
- if (Question2 == NULL) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Status = CompareHiiValue (&Question->HiiValue, &Question2->HiiValue, &Result, FormSet->HiiHandle);
- if (Status == EFI_UNSUPPORTED) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- break;
- }
- if (EFI_ERROR (Status)) {
- 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) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- 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;
- }
-
- Value = &Question->HiiValue;
- break;
-
- case EFI_IFR_SECURITY_OP:
- Value->Value.b = CheckUserPrivilege (&OpCode->Guid);
- 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_HII_VARSTORE_BUFFER:
- case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
- //
- // Get value from Edit Buffer
- //
- Value->Type = OpCode->ValueType;
- CopyMem (&Value->Value, OpCode->VarStorage->EditBuffer + OpCode->VarStoreInfo.VarOffset, 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, GetSetValueWithEditBuffer);
- if (!EFI_ERROR (Status)) {
- ASSERT (StrPtr != NULL);
- TempLength = StrLen (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) StrHexToUint64 (TempStr);
- if ((Index & 1) == 0) {
- TempBuffer [Index/2] = DigitUint8;
- } else {
- TempBuffer [Index/2] = (UINT8) ((DigitUint8 << 4) + TempBuffer [Index/2]);
- }
- }
- }
- }
- }
- break;
- case EFI_HII_VARSTORE_EFI_VARIABLE:
- //
- // Get value from variable.
- //
- TempLength = OpCode->ValueWidth;
- Value->Type = OpCode->ValueType;
- Status = gRT->GetVariable (
- OpCode->ValueName,
- &OpCode->VarStorage->Guid,
- NULL,
- &TempLength,
- &Value->Value
- );
- if (EFI_ERROR (Status)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- Value->Value.u8 = 0;
- }
- break;
- default:
- //
- // Not recognize storage.
- //
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
- } else {
- //
- // For Time/Date Data
- //
- if (OpCode->ValueType != EFI_IFR_TYPE_DATE && OpCode->ValueType != EFI_IFR_TYPE_TIME) {
- //
- // Only support Data/Time data when storage doesn't exist.
- //
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
- Status = gRT->GetTime (&EfiTime, NULL);
- if (!EFI_ERROR (Status)) {
- if (OpCode->ValueType == EFI_IFR_TYPE_DATE) {
- switch (OpCode->VarStoreInfo.VarOffset) {
- case 0x00:
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
- Value->Value.u16 = EfiTime.Year;
- break;
- case 0x02:
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
- Value->Value.u8 = EfiTime.Month;
- break;
- case 0x03:
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
- Value->Value.u8 = EfiTime.Day;
- break;
- default:
- //
- // Invalid Date field.
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- } else {
- switch (OpCode->VarStoreInfo.VarOffset) {
- case 0x00:
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
- Value->Value.u8 = EfiTime.Hour;
- break;
- case 0x01:
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
- Value->Value.u8 = EfiTime.Minute;
- break;
- case 0x02:
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
- Value->Value.u8 = EfiTime.Second;
- break;
- default:
- //
- // Invalid Time field.
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- }
- }
- }
-
- break;
-
- case EFI_IFR_QUESTION_REF3_OP:
- //
- // 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)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- if (OpCode->DevicePath != 0) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
-
- StrPtr = GetToken (OpCode->DevicePath, FormSet->HiiHandle);
- if (StrPtr != NULL && mPathFromText != NULL) {
- DevicePath = mPathFromText->ConvertTextToDevicePath(StrPtr);
- if (DevicePath != NULL && GetQuestionValueFromForm(DevicePath, NULL, &OpCode->Guid, Value->Value.u16, &QuestionVal)) {
- Value = &QuestionVal;
- }
- if (DevicePath != NULL) {
- FreePool (DevicePath);
- }
- }
-
- if (StrPtr != NULL) {
- FreePool (StrPtr);
- }
- } else if (CompareGuid (&OpCode->Guid, &gZeroGuid) != 0) {
- if (!GetQuestionValueFromForm(NULL, FormSet->HiiHandle, &OpCode->Guid, Value->Value.u16, &QuestionVal)){
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
- Value = &QuestionVal;
- } else {
- Question = IdToQuestion (FormSet, Form, Value->Value.u16);
- if (Question == NULL) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- //
- // push the questions' value on to the expression stack
- //
- Value = &Question->HiiValue;
- }
- break;
-
- case EFI_IFR_RULE_REF_OP:
- //
- // Find expression for this rule
- //
- RuleExpression = RuleIdToExpression (Form, OpCode->RuleId);
- if (RuleExpression == NULL) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- //
- // Evaluate this rule expression
- //
- Status = EvaluateExpression (FormSet, Form, RuleExpression);
- if (EFI_ERROR (Status) || RuleExpression->Result.Type == EFI_IFR_TYPE_UNDEFINED) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- 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 && !IsTypeInBuffer (Value)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- if (Value->Type == EFI_IFR_TYPE_STRING) {
- StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);
- if (StrPtr == NULL) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Value->Value.u64 = StrLen (StrPtr);
- FreePool (StrPtr);
- } else {
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Value->Value.u64 = GetLengthForValue(Value);
- FreePool (Value->Buffer);
- }
- break;
-
- case EFI_IFR_NOT_OP:
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- if (Value->Type != EFI_IFR_TYPE_BOOLEAN) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
- 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)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Question = IdToQuestion (FormSet, Form, Value->Value.u16);
- if (Question == NULL) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- 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)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Value->Type = EFI_IFR_TYPE_STRING;
- StrPtr = GetToken (Value->Value.u16, FormSet->HiiHandle);
- 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) (HiiValueToUINT64(Value) != 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->HiiHandle);
- if (StrPtr == NULL) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- IfrStrToUpper (StrPtr);
- if (StrCmp (StrPtr, L"TRUE") == 0){
- Value->Value.b = TRUE;
- Value->Type = EFI_IFR_TYPE_BOOLEAN;
- } else if (StrCmp (StrPtr, L"FALSE") == 0) {
- Value->Value.b = FALSE;
- Value->Type = EFI_IFR_TYPE_BOOLEAN;
- } else {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- }
- FreePool (StrPtr);
- } else if (Value->Type == EFI_IFR_TYPE_BUFFER) {
- //
- // When converting from a buffer, if the buffer is all zeroes,
- // then push False. Otherwise push True.
- //
- for (Index =0; Index < Value->BufferLen; Index ++) {
- if (Value->Buffer[Index] != 0) {
- break;
- }
- }
-
- if (Index >= Value->BufferLen) {
- Value->Value.b = FALSE;
- } else {
- Value->Value.b = TRUE;
- }
- Value->Type = EFI_IFR_TYPE_BOOLEAN;
- FreePool (Value->Buffer);
- }
- 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 = InitializeUnicodeCollationProtocol ();
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = PopExpression (Value);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Value->Type != EFI_IFR_TYPE_STRING) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);
- if (StrPtr == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- if (OpCode->Operand == EFI_IFR_TO_LOWER_OP) {
- mUnicodeCollation->StrLwr (mUnicodeCollation, StrPtr);
- } else {
- mUnicodeCollation->StrUpr (mUnicodeCollation, StrPtr);
- }
- Value->Value.string = NewString (StrPtr, FormSet->HiiHandle);
- 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) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
- Value->Value.u64 = ~ HiiValueToUINT64(Value);
- 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;
- //
- // Set value to var storage buffer
- //
- if (OpCode->VarStorage != NULL) {
- switch (OpCode->VarStorage->Type) {
- case EFI_HII_VARSTORE_BUFFER:
- case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
- CopyMem (OpCode->VarStorage->EditBuffer + OpCode->VarStoreInfo.VarOffset, &Value->Value, OpCode->ValueWidth);
- Data1.Value.b = TRUE;
- break;
- case EFI_HII_VARSTORE_NAME_VALUE:
- if (OpCode->ValueType != EFI_IFR_TYPE_STRING) {
- NameValue = AllocateZeroPool ((OpCode->ValueWidth * 2 + 1) * sizeof (CHAR16));
- ASSERT (Value != NULL);
- //
- // Convert Buffer to Hex String
- //
- TempBuffer = (UINT8 *) &Value->Value + OpCode->ValueWidth - 1;
- StrPtr = NameValue;
- for (Index = 0; Index < OpCode->ValueWidth; Index ++, TempBuffer --) {
- StrPtr += UnicodeValueToString (StrPtr, PREFIX_ZERO | RADIX_HEX, *TempBuffer, 2);
- }
- Status = SetValueByName (OpCode->VarStorage, OpCode->ValueName, NameValue, GetSetValueWithEditBuffer, NULL);
- FreePool (NameValue);
- if (!EFI_ERROR (Status)) {
- Data1.Value.b = TRUE;
- }
- }
- break;
- case EFI_HII_VARSTORE_EFI_VARIABLE:
- Status = gRT->SetVariable (
- OpCode->ValueName,
- &OpCode->VarStorage->Guid,
- OpCode->VarStorage->Attributes,
- OpCode->ValueWidth,
- &Value->Value
- );
- if (!EFI_ERROR (Status)) {
- Data1.Value.b = TRUE;
- }
- break;
- default:
- //
- // Not recognize storage.
- //
- Status = EFI_UNSUPPORTED;
- goto Done;
- break;
- }
- } else {
- //
- // For Time/Date Data
- //
- if (OpCode->ValueType != EFI_IFR_TYPE_DATE && OpCode->ValueType != EFI_IFR_TYPE_TIME) {
- //
- // Only support Data/Time data when storage doesn't exist.
- //
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
- Status = gRT->GetTime (&EfiTime, NULL);
- if (!EFI_ERROR (Status)) {
- if (OpCode->ValueType == EFI_IFR_TYPE_DATE) {
- switch (OpCode->VarStoreInfo.VarOffset) {
- case 0x00:
- EfiTime.Year = Value->Value.u16;
- break;
- case 0x02:
- EfiTime.Month = Value->Value.u8;
- break;
- case 0x03:
- EfiTime.Day = Value->Value.u8;
- break;
- default:
- //
- // Invalid Date field.
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- } else {
- switch (OpCode->VarStoreInfo.VarOffset) {
- case 0x00:
- EfiTime.Hour = Value->Value.u8;
- break;
- case 0x01:
- EfiTime.Minute = Value->Value.u8;
- break;
- case 0x02:
- EfiTime.Second = Value->Value.u8;
- break;
- default:
- //
- // Invalid Time field.
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
- }
- Status = gRT->SetTime (&EfiTime);
- if (!EFI_ERROR (Status)) {
- Data1.Value.b = TRUE;
- }
- }
- }
- 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;
- }
-
- //
- // Pop another expression from the expression stack
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Data2.Type > EFI_IFR_TYPE_DATE) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
-
- if (Data1.Type > EFI_IFR_TYPE_DATE) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
-
- switch (OpCode->Operand) {
- case EFI_IFR_ADD_OP:
- Value->Value.u64 = HiiValueToUINT64(&Data1) + HiiValueToUINT64(&Data2);
- break;
-
- case EFI_IFR_SUBTRACT_OP:
- Value->Value.u64 = HiiValueToUINT64(&Data1) - HiiValueToUINT64(&Data2);
- break;
-
- case EFI_IFR_MULTIPLY_OP:
- Value->Value.u64 = MultU64x32 (HiiValueToUINT64(&Data1), (UINT32) HiiValueToUINT64(&Data2));
- break;
-
- case EFI_IFR_DIVIDE_OP:
- Value->Value.u64 = DivU64x32 (HiiValueToUINT64(&Data1), (UINT32) HiiValueToUINT64(&Data2));
- break;
-
- case EFI_IFR_MODULO_OP:
- DivU64x32Remainder (HiiValueToUINT64(&Data1), (UINT32) HiiValueToUINT64(&Data2), &TempValue);
- Value->Value.u64 = TempValue;
- break;
-
- case EFI_IFR_BITWISE_AND_OP:
- Value->Value.u64 = HiiValueToUINT64(&Data1) & HiiValueToUINT64(&Data2);
- break;
-
- case EFI_IFR_BITWISE_OR_OP:
- Value->Value.u64 = HiiValueToUINT64(&Data1) | HiiValueToUINT64(&Data2);
- break;
-
- case EFI_IFR_SHIFT_LEFT_OP:
- Value->Value.u64 = LShiftU64 (HiiValueToUINT64(&Data1), (UINTN) HiiValueToUINT64(&Data2));
- break;
-
- case EFI_IFR_SHIFT_RIGHT_OP:
- Value->Value.u64 = RShiftU64 (HiiValueToUINT64(&Data1), (UINTN) HiiValueToUINT64(&Data2));
- 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;
- }
-
- //
- // Pop another expression from the expression stack
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Data2.Type != EFI_IFR_TYPE_BOOLEAN) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- 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;
- }
-
- //
- // Pop another expression from the expression stack
- //
- Status = PopExpression (&Data1);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- if (Data2.Type > EFI_IFR_TYPE_BOOLEAN &&
- Data2.Type != EFI_IFR_TYPE_STRING &&
- !IsTypeInBuffer(&Data2)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- if (Data1.Type > EFI_IFR_TYPE_BOOLEAN &&
- Data1.Type != EFI_IFR_TYPE_STRING &&
- !IsTypeInBuffer(&Data1)) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- Status = CompareHiiValue (&Data1, &Data2, &Result, FormSet->HiiHandle);
- if (Data1.Type == EFI_IFR_TYPE_BUFFER) {
- FreePool (Data1.Buffer);
- }
- if (Data2.Type == EFI_IFR_TYPE_BUFFER) {
- FreePool (Data2.Buffer);
- }
-
- if (Status == EFI_UNSUPPORTED) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- Status = EFI_SUCCESS;
- break;
- }
-
- if (EFI_ERROR (Status)) {
- 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 = InitializeUnicodeCollationProtocol ();
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = IfrMatch (FormSet, Value);
- break;
-
- case EFI_IFR_MATCH2_OP:
- Status = IfrMatch2 (FormSet, &OpCode->Guid, 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) {
- Value->Type = EFI_IFR_TYPE_UNDEFINED;
- break;
- }
-
- 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);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- //
- // Compare the expression value with current value
- //
- if ((CompareHiiValue (&Data1, &SubExpression->Result, &Result, NULL) == EFI_SUCCESS) && (Result == 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);
- 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) || Value->Type == EFI_IFR_TYPE_UNDEFINED) {
- 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;
-}
-
-/**
- Check whether the result is TRUE or FALSE.
-
- For the EFI_HII_VALUE value type is numeric, return TRUE if the
- value is not 0.
-
- @param Result Input the result data.
-
- @retval TRUE The result is TRUE.
- @retval FALSE The result is FALSE.
-
-**/
-BOOLEAN
-IsTrue (
- IN EFI_HII_VALUE *Result
- )
-{
- switch (Result->Type) {
- case EFI_IFR_TYPE_BOOLEAN:
- return Result->Value.b;
-
- case EFI_IFR_TYPE_NUM_SIZE_8:
- return (BOOLEAN)(Result->Value.u8 != 0);
-
- case EFI_IFR_TYPE_NUM_SIZE_16:
- return (BOOLEAN)(Result->Value.u16 != 0);
-
- case EFI_IFR_TYPE_NUM_SIZE_32:
- return (BOOLEAN)(Result->Value.u32 != 0);
-
- case EFI_IFR_TYPE_NUM_SIZE_64:
- return (BOOLEAN)(Result->Value.u64 != 0);
-
- default:
- return FALSE;
- }
-}
-
-/**
- Return the result of the expression list. Check the expression list and
- return the highest priority express result.
- Priority: DisableIf > SuppressIf > GrayOutIf > FALSE
-
- @param ExpList The input expression list.
- @param Evaluate Whether need to evaluate the expression first.
- @param FormSet FormSet associated with this expression.
- @param Form Form associated with this expression.
-
- @retval EXPRESS_RESULT Return the higher priority express result.
- DisableIf > SuppressIf > GrayOutIf > FALSE
-
-**/
-EXPRESS_RESULT
-EvaluateExpressionList (
- IN FORM_EXPRESSION_LIST *ExpList,
- IN BOOLEAN Evaluate,
- IN FORM_BROWSER_FORMSET *FormSet, OPTIONAL
- IN FORM_BROWSER_FORM *Form OPTIONAL
- )
-{
- UINTN Index;
- EXPRESS_RESULT ReturnVal;
- EXPRESS_RESULT CompareOne;
- EFI_STATUS Status;
-
- if (ExpList == NULL) {
- return ExpressFalse;
- }
-
- ASSERT(ExpList->Signature == FORM_EXPRESSION_LIST_SIGNATURE);
- Index = 0;
-
- //
- // Check whether need to evaluate the expression first.
- //
- if (Evaluate) {
- while (ExpList->Count > Index) {
- Status = EvaluateExpression (FormSet, Form, ExpList->Expression[Index++]);
- if (EFI_ERROR (Status)) {
- return ExpressFalse;
- }
- }
- }
-
- //
- // Run the list of expressions.
- //
- ReturnVal = ExpressFalse;
- for (Index = 0; Index < ExpList->Count; Index++) {
- if (IsTrue (&ExpList->Expression[Index]->Result)) {
- switch (ExpList->Expression[Index]->Type) {
- case EFI_HII_EXPRESSION_SUPPRESS_IF:
- CompareOne = ExpressSuppress;
- break;
-
- case EFI_HII_EXPRESSION_GRAY_OUT_IF:
- CompareOne = ExpressGrayOut;
- break;
-
- case EFI_HII_EXPRESSION_DISABLE_IF:
- CompareOne = ExpressDisable;
- break;
-
- default:
- return ExpressFalse;
- }
-
- ReturnVal = ReturnVal < CompareOne ? CompareOne : ReturnVal;
- }
- }
-
- return ReturnVal;
-}
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