/** @file\r
Utility functions for expression evaluation.\r
\r
-Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2007 - 2017, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
**/\r
UINTN\r
SaveExpressionEvaluationStackOffset (\r
+ VOID\r
)\r
{\r
UINTN TempStackOffset;\r
UINT16 Length0;\r
UINT16 Length1;\r
UINT8 *TmpBuf;\r
+ UINTN MaxLen;\r
\r
//\r
// String[0] - The second string\r
\r
if (Value[0].Type == EFI_IFR_TYPE_STRING) {\r
Size = StrSize (String[0]);\r
- StringPtr= AllocatePool (StrSize (String[1]) + Size);\r
+ MaxLen = (StrSize (String[1]) + Size) / sizeof (CHAR16);\r
+ StringPtr= AllocatePool (MaxLen * sizeof (CHAR16));\r
ASSERT (StringPtr != NULL);\r
- StrCpy (StringPtr, String[1]);\r
- StrCat (StringPtr, String[0]);\r
+ StrCpyS (StringPtr, MaxLen, String[1]);\r
+ StrCatS (StringPtr, MaxLen, String[0]);\r
\r
Result->Type = EFI_IFR_TYPE_STRING;\r
Result->Value.string = NewString (StringPtr, FormSet->HiiHandle);\r
return Status;\r
}\r
\r
+/**\r
+ Evaluate opcode EFI_IFR_MATCH2.\r
+\r
+ @param FormSet Formset which contains this opcode.\r
+ @param SyntaxType Syntax type for match2.\r
+ @param Result Evaluation result for this opcode.\r
+\r
+ @retval EFI_SUCCESS Opcode evaluation success.\r
+ @retval Other Opcode evaluation failed.\r
+\r
+**/\r
+EFI_STATUS\r
+IfrMatch2 (\r
+ IN FORM_BROWSER_FORMSET *FormSet,\r
+ IN EFI_GUID *SyntaxType,\r
+ OUT EFI_HII_VALUE *Result\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HII_VALUE Value[2];\r
+ CHAR16 *String[2];\r
+ UINTN Index;\r
+ UINTN GuidIndex;\r
+ EFI_HANDLE *HandleBuffer;\r
+ UINTN BufferSize;\r
+ EFI_REGULAR_EXPRESSION_PROTOCOL *RegularExpressionProtocol;\r
+ UINTN RegExSyntaxTypeListSize;\r
+ EFI_REGEX_SYNTAX_TYPE *RegExSyntaxTypeList;\r
+ UINTN CapturesCount;\r
+\r
+ //\r
+ // String[0] - The string to search\r
+ // String[1] - pattern\r
+ //\r
+ String[0] = NULL;\r
+ String[1] = NULL;\r
+ HandleBuffer = NULL;\r
+ RegExSyntaxTypeList = NULL;\r
+ Status = EFI_SUCCESS;\r
+ ZeroMem (Value, sizeof (Value));\r
+\r
+ Status = PopExpression (&Value[0]);\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Status = PopExpression (&Value[1]);\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ for (Index = 0; Index < 2; Index++) {\r
+ if (Value[Index].Type != EFI_IFR_TYPE_STRING) {\r
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+\r
+ String[Index] = GetToken (Value[Index].Value.string, FormSet->HiiHandle);\r
+ if (String [Index] == NULL) {\r
+ Status = EFI_NOT_FOUND;\r
+ goto Done;\r
+ }\r
+ }\r
+\r
+ BufferSize = 0;\r
+ HandleBuffer = NULL;\r
+ Status = gBS->LocateHandle(\r
+ ByProtocol,\r
+ &gEfiRegularExpressionProtocolGuid,\r
+ NULL,\r
+ &BufferSize,\r
+ HandleBuffer);\r
+ if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ HandleBuffer = AllocateZeroPool(BufferSize);\r
+ if (HandleBuffer == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+ Status = gBS->LocateHandle(\r
+ ByProtocol,\r
+ &gEfiRegularExpressionProtocolGuid,\r
+ NULL,\r
+ &BufferSize,\r
+ HandleBuffer);\r
+\r
+ }\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+\r
+ ASSERT (HandleBuffer != NULL);\r
+ for ( Index = 0; Index < BufferSize / sizeof(EFI_HANDLE); Index ++) {\r
+ Status = gBS->HandleProtocol (\r
+ HandleBuffer[Index],\r
+ &gEfiRegularExpressionProtocolGuid,\r
+ (VOID**)&RegularExpressionProtocol\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ RegExSyntaxTypeListSize = 0;\r
+ RegExSyntaxTypeList = NULL;\r
+\r
+ Status = RegularExpressionProtocol->GetInfo (\r
+ RegularExpressionProtocol, \r
+ &RegExSyntaxTypeListSize, \r
+ RegExSyntaxTypeList\r
+ );\r
+ if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ RegExSyntaxTypeList = AllocateZeroPool(RegExSyntaxTypeListSize);\r
+ if (RegExSyntaxTypeList == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+ Status = RegularExpressionProtocol->GetInfo (\r
+ RegularExpressionProtocol, \r
+ &RegExSyntaxTypeListSize, \r
+ RegExSyntaxTypeList\r
+ );\r
+ } else if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ for (GuidIndex = 0; GuidIndex < RegExSyntaxTypeListSize / sizeof(EFI_GUID); GuidIndex++) {\r
+ if (CompareGuid (&RegExSyntaxTypeList[GuidIndex], SyntaxType)) {\r
+ //\r
+ // Find the match type, return the value.\r
+ //\r
+ Result->Type = EFI_IFR_TYPE_BOOLEAN;\r
+ Status = RegularExpressionProtocol->MatchString (\r
+ RegularExpressionProtocol, \r
+ String[0],\r
+ String[1],\r
+ SyntaxType,\r
+ &Result->Value.b,\r
+ NULL,\r
+ &CapturesCount\r
+ );\r
+ goto Done;\r
+ }\r
+ }\r
+\r
+ if (RegExSyntaxTypeList != NULL) {\r
+ FreePool (RegExSyntaxTypeList);\r
+ }\r
+ }\r
+\r
+ //\r
+ // Type specified by SyntaxType is not supported \r
+ // in any of the EFI_REGULAR_EXPRESSION_PROTOCOL instances.\r
+ //\r
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;\r
+ Status = EFI_SUCCESS;\r
+\r
+Done:\r
+ if (String[0] != NULL) {\r
+ FreePool (String[0]);\r
+ }\r
+ if (String[1] != NULL) {\r
+ FreePool (String[1]);\r
+ }\r
+ if (RegExSyntaxTypeList != NULL) {\r
+ FreePool (RegExSyntaxTypeList);\r
+ }\r
+ if (HandleBuffer != NULL) {\r
+ FreePool (HandleBuffer);\r
+ }\r
+ return Status;\r
+}\r
\r
/**\r
Evaluate opcode EFI_IFR_FIND.\r
//\r
// Get the question value.\r
//\r
- Status = GetQuestionValue(FormSet, Form, Question, GetSetValueWithHiiDriver);\r
+ Status = GetQuestionValue(FormSet, Form, Question, GetSetValueWithEditBuffer);\r
if (EFI_ERROR (Status)) {\r
GetTheVal = FALSE;\r
goto Done;\r
if (StrPtr != NULL) {\r
FreePool (StrPtr);\r
}\r
- } else if (CompareGuid (&OpCode->Guid, &gZeroGuid) != 0) {\r
+ } else if (IsZeroGuid (&OpCode->Guid)) {\r
if (!GetQuestionValueFromForm(NULL, FormSet->HiiHandle, &OpCode->Guid, Value->Value.u16, &QuestionVal)){\r
Value->Type = EFI_IFR_TYPE_UNDEFINED;\r
break;\r
case EFI_HII_VARSTORE_NAME_VALUE:\r
if (OpCode->ValueType != EFI_IFR_TYPE_STRING) {\r
NameValue = AllocateZeroPool ((OpCode->ValueWidth * 2 + 1) * sizeof (CHAR16));\r
- ASSERT (Value != NULL);\r
+ ASSERT (NameValue != NULL);\r
//\r
// Convert Buffer to Hex String\r
//\r
TempBuffer = (UINT8 *) &Value->Value + OpCode->ValueWidth - 1;\r
StrPtr = NameValue;\r
for (Index = 0; Index < OpCode->ValueWidth; Index ++, TempBuffer --) {\r
- StrPtr += UnicodeValueToString (StrPtr, PREFIX_ZERO | RADIX_HEX, *TempBuffer, 2);\r
+ UnicodeValueToStringS (\r
+ StrPtr,\r
+ (OpCode->ValueWidth * 2 + 1) * sizeof (CHAR16) - ((UINTN)StrPtr - (UINTN)NameValue),\r
+ PREFIX_ZERO | RADIX_HEX,\r
+ *TempBuffer,\r
+ 2\r
+ );\r
+ StrPtr += StrnLenS (StrPtr, OpCode->ValueWidth * 2 + 1 - ((UINTN)StrPtr - (UINTN)NameValue) / sizeof (CHAR16));\r
}\r
Status = SetValueByName (OpCode->VarStorage, OpCode->ValueName, NameValue, GetSetValueWithEditBuffer, NULL);\r
FreePool (NameValue);\r
//\r
Status = EFI_UNSUPPORTED;\r
goto Done;\r
- break;\r
}\r
} else {\r
//\r
Status = IfrMatch (FormSet, Value);\r
break;\r
\r
+ case EFI_IFR_MATCH2_OP:\r
+ Status = IfrMatch2 (FormSet, &OpCode->Guid, Value);\r
+ break;\r
+\r
case EFI_IFR_CATENATE_OP:\r
Status = IfrCatenate (FormSet, Value);\r
break;\r
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