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MdeModulePkg: Add match2 opcode support in SetupBrowserDxe and sample code in DriverSampleDxe

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@hp.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17340 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Eric Dong
2015-05-06 10:40:53 +00:00
committed by ydong10
parent 7cc80bfd7c
commit 9bd22b08d1
7 changed files with 200 additions and 4 deletions
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177
MdeModulePkg/Universal/SetupBrowserDxe/Expression.c
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@@ -1,7 +1,7 @@
/** @file
Utility functions for expression evaluation.
Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
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
@@ -1475,6 +1475,177 @@ Done:
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);
} else if (EFI_ERROR (Status)) {
Value->Type = EFI_IFR_TYPE_UNDEFINED;
Status = EFI_SUCCESS;
goto Done;
}
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.
//
Value->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.
@@ -3267,6 +3438,10 @@ EvaluateExpression (
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;