* [PATCH] edk2-staging/RedfishPkg: HII utility helper library
@ 2021-10-28 0:59 Abner Chang
0 siblings, 0 replies; only message in thread
From: Abner Chang @ 2021-10-28 0:59 UTC (permalink / raw)
To: devel; +Cc: nickle.wang, Liming Gao
HiiUtilityLib is a helper library that provides the
functions to manipulate HII options.
Signed-off-by: Nickle Wang <nickle.wang@hpe.com>
Cc: Abner Chang <abner.chang@hpe.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
---
RedfishPkg/RedfishPkg.dec | 4 +
.../Library/HiiUtilityLib/HiiUtilityLib.inf | 61 +
RedfishPkg/Include/Library/HiiUtilityLib.h | 1195 ++++
.../Library/HiiUtilityLib/HiiExpression.h | 190 +
.../Library/HiiUtilityLib/HiiInternal.h | 371 ++
.../Library/HiiUtilityLib/HiiExpression.c | 1367 +++++
.../Library/HiiUtilityLib/HiiIfrParse.c | 2671 +++++++++
.../HiiUtilityLib/HiiUtilityInternal.c | 5045 +++++++++++++++++
.../Library/HiiUtilityLib/HiiUtilityLib.c | 855 +++
9 files changed, 11759 insertions(+)
create mode 100644 RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.inf
create mode 100644 RedfishPkg/Include/Library/HiiUtilityLib.h
create mode 100644 RedfishPkg/Library/HiiUtilityLib/HiiExpression.h
create mode 100644 RedfishPkg/Library/HiiUtilityLib/HiiInternal.h
create mode 100644 RedfishPkg/Library/HiiUtilityLib/HiiExpression.c
create mode 100644 RedfishPkg/Library/HiiUtilityLib/HiiIfrParse.c
create mode 100644 RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c
create mode 100644 RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.c
diff --git a/RedfishPkg/RedfishPkg.dec b/RedfishPkg/RedfishPkg.dec
index 4d80515fe07..eac219ccbb9 100644
--- a/RedfishPkg/RedfishPkg.dec
+++ b/RedfishPkg/RedfishPkg.dec
@@ -55,6 +55,10 @@
#
RedfishContentCodingLib|Include/Library/RedfishContentCodingLib.h
+ ## @libraryclass Provides the library functions to parse IFR binary data.
+ #
+ HiiUtilityLib|Include/Library/HiiUtilityLib.h
+
[LibraryClasses.Common.Private]
## @libraryclass Provides the private C runtime library functions.
# CRT library is currently used by edk2 JsonLib (open source
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.inf b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.inf
new file mode 100644
index 00000000000..36a629a758b
--- /dev/null
+++ b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.inf
@@ -0,0 +1,61 @@
+## @file
+# Library to handle HII IFR data.
+#
+# Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+# (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = HiiUtilityLib
+ FILE_GUID = D00DA028-F19A-47AF-B22A-6EE9E8BD7335
+ MODULE_TYPE = UEFI_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = HiiUtilityLib|DXE_DRIVER UEFI_DRIVER UEFI_APPLICATION
+
+#
+# VALID_ARCHITECTURES = IA32 X64 EBC
+#
+
+[Sources]
+ HiiUtilityLib.c
+ HiiExpression.c
+ HiiUtilityInternal.c
+ HiiIfrParse.c
+ HiiInternal.h
+ HiiExpression.h
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ RedfishPkg/RedfishPkg.dec
+
+[LibraryClasses]
+ PrintLib
+ DebugLib
+ BaseMemoryLib
+ UefiRuntimeServicesTableLib
+ UefiBootServicesTableLib
+ MemoryAllocationLib
+ HiiLib
+
+[Guids]
+ gZeroGuid
+ gEdkiiIfrBitVarstoreGuid
+ gEfiHiiPlatformSetupFormsetGuid
+ gEfiHiiStandardFormGuid
+
+[Protocols]
+ gEfiHiiDatabaseProtocolGuid
+ gEfiHiiConfigRoutingProtocolGuid
+ gEfiHiiConfigAccessProtocolGuid
+ gEfiDevicePathFromTextProtocolGuid
+ gEfiUnicodeCollation2ProtocolGuid
+ gEfiRegularExpressionProtocolGuid
+ gEfiUserManagerProtocolGuid
+
+[Depex]
+ TRUE
diff --git a/RedfishPkg/Include/Library/HiiUtilityLib.h b/RedfishPkg/Include/Library/HiiUtilityLib.h
new file mode 100644
index 00000000000..1f164ba49c6
--- /dev/null
+++ b/RedfishPkg/Include/Library/HiiUtilityLib.h
@@ -0,0 +1,1195 @@
+/** @file
+ Definitinos of RedfishPlatformConfigLib
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#ifndef HII_UTILITY_LIB_
+#define HII_UTILITY_LIB_
+
+#include <Protocol/DisplayProtocol.h>
+#include <Protocol/HiiConfigAccess.h>
+
+//
+// IFR relative definition
+//
+#define EFI_HII_EXPRESSION_INCONSISTENT_IF 0
+#define EFI_HII_EXPRESSION_NO_SUBMIT_IF 1
+#define EFI_HII_EXPRESSION_GRAY_OUT_IF 2
+#define EFI_HII_EXPRESSION_SUPPRESS_IF 3
+#define EFI_HII_EXPRESSION_DISABLE_IF 4
+#define EFI_HII_EXPRESSION_VALUE 5
+#define EFI_HII_EXPRESSION_RULE 6
+#define EFI_HII_EXPRESSION_READ 7
+#define EFI_HII_EXPRESSION_WRITE 8
+#define EFI_HII_EXPRESSION_WARNING_IF 9
+
+#define EFI_HII_VARSTORE_BUFFER 0
+#define EFI_HII_VARSTORE_NAME_VALUE 1
+#define EFI_HII_VARSTORE_EFI_VARIABLE 2 // EFI Varstore type follow UEFI spec before 2.3.1.
+#define EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER 3 // EFI varstore type follow UEFI spec 2.3.1 and later.
+
+//
+// HII_NAME_VALUE_NODE for name/value storage
+//
+typedef struct {
+
+ UINTN Signature;
+ LIST_ENTRY Link;
+ CHAR16 *Name;
+ CHAR16 *Value;
+
+} HII_NAME_VALUE_NODE;
+
+#define HII_NAME_VALUE_NODE_SIGNATURE SIGNATURE_32 ('N', 'V', 'S', 'T')
+#define HII_NAME_VALUE_NODE_FROM_LINK(a) CR (a, HII_NAME_VALUE_NODE, Link, HII_NAME_VALUE_NODE_SIGNATURE)
+
+//
+// Storage info
+//
+typedef union {
+ EFI_STRING_ID VarName;
+ UINT16 VarOffset;
+} HII_VAR_STORE_INFO;
+
+//
+// FormSet storage
+//
+typedef struct {
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ UINT8 Type; // Storage type
+ EFI_HII_HANDLE HiiHandle; // HiiHandle for this varstore.
+
+ //
+ // For all type of storages.
+ //
+ UINT16 VarStoreId; // VarStore ID.
+ EFI_GUID Guid; // VarStore Guid.
+
+ //
+ // For EFI_IFR_VARSTORE, EFI_IFR_VARSTORE_EFI
+ //
+ CHAR16 *Name; // VarStore name
+ UINT16 Size; // Varatore size.
+ UINT8 *Buffer; // Buffer storage.
+ UINT8 *EditBuffer; // Edit copy for Buffer Storage
+
+ //
+ // For EFI_IFR_VARSTORE_EFI: EFI Variable.
+ //
+ UINT32 Attributes;
+
+ //
+ //For EFI_IFR_VARSTORE_NAME_VALUE.
+ //
+ LIST_ENTRY NameValueList; // List of NAME_VALUE_NODE
+
+ CHAR16 *ConfigHdr; // <ConfigHdr>
+ CHAR16 *ConfigRequest; // <ConfigRequest> = <ConfigHdr> + <RequestElement>
+ UINTN ElementCount; // Number of <RequestElement> in the <ConfigRequest>
+ UINTN SpareStrLen; // Spare length of ConfigRequest string buffer
+} HII_FORMSET_STORAGE;
+
+
+#define HII_STORAGE_SIGNATURE SIGNATURE_32 ('B', 'S', 'T', 'G')
+#define HII_STORAGE_FROM_LINK(a) CR (a, HII_FORMSET_STORAGE, Link, HII_STORAGE_SIGNATURE)
+
+//
+// Definition of EXPRESS_RESULT
+//
+typedef enum {
+ ExpressFalse = 0,
+ ExpressGrayOut,
+ ExpressSuppress,
+ ExpressDisable
+} EXPRESS_RESULT;
+
+//
+// Definition of EXPRESS_LEVEL
+//
+typedef enum {
+ ExpressNone = 0,
+ ExpressForm,
+ ExpressStatement,
+ ExpressOption
+} EXPRESS_LEVEL;
+
+//
+// Definition of HII_EXPRESSION_OPCODE_EXTRA
+//
+typedef union {
+
+ EFI_HII_VALUE Value; // EFI_IFR_UINT64, EFI_IFR_UINT32, EFI_IFR_UINT16, EFI_IFR_UINT8, EFI_IFR_STRING_REF1
+ UINT8 Format; // For EFI_IFR_TO_STRING, EFI_IFR_FIND
+ UINT8 Flags; // For EFI_IFR_SPAN
+ UINT8 RuleId; // For EFI_IFR_RULE_REF
+ EFI_GUID Guid; // For EFI_IFR_SECURITY, EFI_IFR_MATCH2
+
+ struct {
+ EFI_QUESTION_ID QuestionId;
+ EFI_HII_VALUE Value;
+ } EqIdValData;
+
+ struct {
+ EFI_QUESTION_ID QuestionId1;
+ EFI_QUESTION_ID QuestionId2;
+ } EqIdIdData;
+
+ struct {
+ EFI_QUESTION_ID QuestionId; // For EFI_IFR_EQ_ID_VAL_LIST
+ UINT16 ListLength;
+ UINT16 *ValueList;
+ } EqIdListData;
+
+ struct {
+ EFI_QUESTION_ID QuestionId;
+ } QuestionRef1Data;
+
+ struct {
+ EFI_STRING_ID DevicePath; // For EFI_IFR_QUESTION_REF3_3
+ EFI_GUID Guid;
+ } QuestionRef3Data;
+
+ struct {
+ HII_FORMSET_STORAGE *VarStorage;
+ HII_VAR_STORE_INFO VarStoreInfo;
+ UINT8 ValueType;
+ UINT8 ValueWidth;
+ CHAR16 *ValueName;
+ } GetSetData;
+
+} HII_EXPRESSION_OPCODE_EXTRA;
+
+typedef union _HII_DEPENDENCY_EXPRESSION HII_DEPENDENCY_EXPRESSION;
+
+//
+// Definition of HII_EXPRESSION_CONSTANT
+//
+// Operand:
+//
+// EFI_IFR_TRUE
+// EFI_IFR_FALSE
+// EFI_IFR_ONE
+// EFI_IFR_ONES
+// EFI_IFR_ZERO
+// EFI_IFR_UNDEFINED
+// EFI_IFR_VERSION
+// EFI_IFR_UINT8
+// EFI_IFR_UINT16
+// EFI_IFR_UINT32
+// EFI_IFR_UINT64
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_HII_VALUE Value;
+} HII_EXPRESSION_CONSTANT;
+
+//
+// Definition of HII_DEPENDENCY_DUP
+//
+typedef struct {
+ UINT8 Operand;
+} HII_DEPENDENCY_DUP;
+
+//
+// Definition of HII_DEPENDENCY_EQ_ID_VAL
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_QUESTION_ID QuestionId;
+ EFI_HII_VALUE Value;
+} HII_DEPENDENCY_EQ_ID_VAL;
+
+//
+// Definition of HII_DEPENDENCY_EQ_ID_VAL
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_QUESTION_ID QuestionId1;
+ EFI_QUESTION_ID QuestionId2;
+} HII_DEPENDENCY_EQ_ID_ID;
+
+//
+// Definition of HII_DEPENDENCY_EQ_ID_VAL_LIST
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_QUESTION_ID QuestionId;
+ UINT16 ListLength;
+ UINT16 *ValueList;
+} HII_DEPENDENCY_EQ_ID_VAL_LIST;
+
+//
+// Definition of HII_DEPENDENCY_QUESTION_REF1
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_QUESTION_ID QuestionId;
+} HII_DEPENDENCY_QUESTION_REF1;
+
+//
+// Definition of HII_DEPENDENCY_RULE_REF
+//
+typedef struct {
+ UINT8 Operand;
+ UINT8 RuleId;
+} HII_DEPENDENCY_RULE_REF;
+
+//
+// Definition of HII_DEPENDENCY_STRING_REF1
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_HII_VALUE Value;
+} HII_DEPENDENCY_STRING_REF1;
+
+//
+// Definition of HII_DEPENDENCY_THIS
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_QUESTION_ID QuestionId;
+} HII_DEPENDENCY_THIS;
+
+//
+// Definition of HII_DEPENDENCY_SECURITY
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_GUID Permissions;
+} HII_DEPENDENCY_SECURITY;
+
+//
+// Definition of HII_DEPENDENCY_GET
+//
+typedef struct {
+ UINT8 Operand;
+ HII_FORMSET_STORAGE *VarStorage;
+ HII_VAR_STORE_INFO VarStoreInfo;
+ UINT8 ValueType;
+ UINT8 ValueWidth;
+ CHAR16 *ValueName;
+} HII_DEPENDENCY_GET;
+
+//
+// Definition of HII_DEPENDENCY_LENGTH
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_LENGTH;
+
+//
+// Definition of HII_DEPENDENCY_BITWISE_NOT
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_BITWISE_NOT;
+
+//
+// Definition of HII_DEPENDENCY_STRING_REF2
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_STRING_REF2;
+
+//
+// Definition of HII_DEPENDENCY_QUESTION_REF2
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_QUESTION_REF2;
+
+//
+// Definition of HII_DEPENDENCY_QUESTION_REF3
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_STRING_ID DevicePath;
+ EFI_GUID Guid;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_QUESTION_REF3;
+
+//
+// Definition of HII_DEPENDENCY_TO_BOOLEAN
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_TO_BOOLEAN;
+
+//
+// Definition of HII_DEPENDENCY_TO_STRING
+//
+typedef struct {
+ UINT8 Operand;
+ UINT8 Format;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_TO_STRING;
+
+//
+// Definition of HII_DEPENDENCY_TO_UINT
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_TO_UINT;
+
+//
+// Definition of HII_DEPENDENCY_TO_UPPER
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_TO_UPPER;
+
+//
+// Definition of HII_DEPENDENCY_TO_LOWER
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_TO_LOWER;
+
+//
+// Definition of HII_DEPENDENCY_SET
+//
+typedef struct {
+ UINT8 Operand;
+ HII_FORMSET_STORAGE *VarStorage;
+ HII_VAR_STORE_INFO VarStoreInfo;
+ UINT8 ValueType;
+ UINT8 ValueWidth;
+ CHAR16 *ValueName;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_SET;
+
+//
+// Definition of HII_DEPENDENCY_NOT
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression;
+} HII_DEPENDENCY_NOT;
+
+//
+// Definition of HII_DEPENDENCY_CATENATE
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *LeftStringExp;
+ HII_DEPENDENCY_EXPRESSION *RightStringExp;
+} HII_DEPENDENCY_CATENATE;
+
+//
+// Definition of HII_DEPENDENCY_MATCH
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *StringExp;
+ HII_DEPENDENCY_EXPRESSION *PatternExp;
+} HII_DEPENDENCY_MATCH;
+
+//
+// Definition of HII_DEPENDENCY_MATCH2
+//
+typedef struct {
+ UINT8 Operand;
+ EFI_GUID SyntaxType;
+ HII_DEPENDENCY_EXPRESSION *StringExp;
+ HII_DEPENDENCY_EXPRESSION *PatternExp;
+} HII_DEPENDENCY_MATCH2;
+
+//
+// Definition of HII_DEPENDENCY_MULT
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp;
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp;
+} HII_DEPENDENCY_MULT;
+
+//
+// Definition of HII_DEPENDENCY_DIV
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp; // right value
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp; // left value
+} HII_DEPENDENCY_DIV;
+
+//
+// Definition of HII_DEPENDENCY_MOD
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp; // right value
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp; // left value
+} HII_DEPENDENCY_MOD;
+
+//
+// Definition of HII_DEPENDENCY_ADD
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp; // right value
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp; // left value
+} HII_DEPENDENCY_ADD;
+
+//
+// Definition of HII_DEPENDENCY_SUBTRACT
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp; // right value
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp; // left value
+} HII_DEPENDENCY_SUBTRACT;
+
+//
+// Definition of HII_DEPENDENCY_SHIFT_LEFT
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp;
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp;
+} HII_DEPENDENCY_SHIFT_LEFT;
+
+//
+// Definition of HII_DEPENDENCY_SHIFT_RIGHT
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp;
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp;
+} HII_DEPENDENCY_SHIFT_RIGHT;
+
+//
+// Definition of HII_DEPENDENCY_GREATER_THAN
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp;
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp;
+} HII_DEPENDENCY_GREATER_THAN;
+
+//
+// Definition of HII_DEPENDENCY_GREATER_EQUAL
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp;
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp;
+} HII_DEPENDENCY_GREATER_EQUAL;
+
+//
+// Definition of HII_DEPENDENCY_LESS_THAN
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp;
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp;
+} HII_DEPENDENCY_LESS_THAN;
+
+//
+// Definition of HII_DEPENDENCY_LESS_EQUAL
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *RightHandExp;
+ HII_DEPENDENCY_EXPRESSION *LeftHandExp;
+} HII_DEPENDENCY_LESS_EQUAL;
+
+//
+// Definition of HII_DEPENDENCY_EQUAL
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression1;
+ HII_DEPENDENCY_EXPRESSION *SubExpression2;
+} HII_DEPENDENCY_EQUAL;
+
+//
+// Definition of HII_DEPENDENCY_NOT_EQUAL
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression1;
+ HII_DEPENDENCY_EXPRESSION *SubExpression2;
+} HII_DEPENDENCY_NOT_EQUAL;
+
+//
+// Definition of HII_DEPENDENCY_BITWISE_AND
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression1;
+ HII_DEPENDENCY_EXPRESSION *SubExpression2;
+} HII_DEPENDENCY_BITWISE_AND;
+
+//
+// Definition of HII_DEPENDENCY_BITWISE_OR
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression1;
+ HII_DEPENDENCY_EXPRESSION *SubExpression2;
+} HII_DEPENDENCY_BITWISE_OR;
+
+//
+// Definition of HII_DEPENDENCY_AND
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression1;
+ HII_DEPENDENCY_EXPRESSION *SubExpression2;
+} HII_DEPENDENCY_AND;
+
+//
+// Definition of HII_DEPENDENCY_OR
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExpression1;
+ HII_DEPENDENCY_EXPRESSION *SubExpression2;
+} HII_DEPENDENCY_OR;
+
+//
+// Definition of HII_DEPENDENCY_CONDITIONAL
+//
+// Ternary expression
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *CondTrueValExp; // right value
+ HII_DEPENDENCY_EXPRESSION *CondFalseValExp; // middle value
+ HII_DEPENDENCY_EXPRESSION *ConditionExp; // left value
+} HII_DEPENDENCY_CONDITIONAL;
+
+//
+// Definition of HII_DEPENDENCY_FIND
+//
+typedef struct {
+ UINT8 Operand;
+ UINT8 Format;
+ HII_DEPENDENCY_EXPRESSION *IndexExp; // right value
+ HII_DEPENDENCY_EXPRESSION *StringToCompWithExp; // middle value
+ HII_DEPENDENCY_EXPRESSION *StringToSearchExp; // left value
+} HII_DEPENDENCY_FIND;
+
+//
+// Definition of HII_DEPENDENCY_MID
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *LengthExp; // right value
+ HII_DEPENDENCY_EXPRESSION *IndexExp; // middle value
+ HII_DEPENDENCY_EXPRESSION *StringOrBufferExp; // left value
+} HII_DEPENDENCY_MID;
+
+//
+// Definition of HII_DEPENDENCY_TOKEN
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *IndexExp; // right value
+ HII_DEPENDENCY_EXPRESSION *DelimiterExp; // middle value
+ HII_DEPENDENCY_EXPRESSION *StringToSearchExp; // left value
+} HII_DEPENDENCY_TOKEN;
+
+//
+// Definition of HII_DEPENDENCY_SPAN
+//
+typedef struct {
+ UINT8 Operand;
+ UINT8 Flags;
+ HII_DEPENDENCY_EXPRESSION *IndeExp; // right value
+ HII_DEPENDENCY_EXPRESSION *CharsetExp; // middle value
+ HII_DEPENDENCY_EXPRESSION *StringToSearchExp; // left value
+} HII_DEPENDENCY_SPAN;
+
+//
+// Map expression
+//
+typedef struct {
+ HII_DEPENDENCY_EXPRESSION *MatchExp;
+ HII_DEPENDENCY_EXPRESSION *ReturnExp;
+} HII_DEPENDENCY_EXPRESSION_PAIR;
+
+//
+// Definition of HII_DEPENDENCY_MAP
+//
+typedef struct {
+ UINT8 Operand;
+ HII_DEPENDENCY_EXPRESSION *SubExp;
+ HII_DEPENDENCY_EXPRESSION_PAIR *ExpPair;
+ UINT8 ExpPairNo;
+} HII_DEPENDENCY_MAP;
+
+//
+// Definition of HII_DEPENDENCY_EXPRESSION
+//
+union _HII_DEPENDENCY_EXPRESSION {
+ //
+ // Constant
+ //
+ HII_EXPRESSION_CONSTANT ContantExp;
+ //
+ // build-in expression
+ //
+ HII_DEPENDENCY_DUP DupExp;
+ HII_DEPENDENCY_EQ_ID_VAL EqIdValExp;
+ HII_DEPENDENCY_EQ_ID_ID EqIdIdExp;
+ HII_DEPENDENCY_EQ_ID_VAL_LIST EqIdListExp;
+ HII_DEPENDENCY_QUESTION_REF1 QuestionRef1Exp;
+ HII_DEPENDENCY_RULE_REF RuleRefExp;
+ HII_DEPENDENCY_STRING_REF1 StringRef1Exp;
+ HII_DEPENDENCY_THIS ThisExp;
+ HII_DEPENDENCY_SECURITY SecurityExp;
+ HII_DEPENDENCY_GET GetExp;
+
+ //
+ //unary expression
+ //
+ HII_DEPENDENCY_LENGTH LengthExp;
+ HII_DEPENDENCY_BITWISE_NOT BitWiseNotExp;
+ HII_DEPENDENCY_STRING_REF2 StringRef2Exp;
+ HII_DEPENDENCY_QUESTION_REF2 QuestionRef2Exp;
+ HII_DEPENDENCY_QUESTION_REF3 QuestionRef3Exp;
+ HII_DEPENDENCY_TO_BOOLEAN ToBooleanExp;
+ HII_DEPENDENCY_TO_STRING ToStringExp;
+ HII_DEPENDENCY_TO_UINT ToUintExp;
+ HII_DEPENDENCY_TO_UPPER ToUpperExp;
+ HII_DEPENDENCY_TO_LOWER ToLowerExp;
+ HII_DEPENDENCY_SET SetExp;
+ HII_DEPENDENCY_NOT NotExp;
+
+ //
+ // Binary expression
+ //
+ HII_DEPENDENCY_CATENATE CatenateExp;
+ HII_DEPENDENCY_MATCH MatchExp;
+ HII_DEPENDENCY_MATCH2 Match2Exp;
+ HII_DEPENDENCY_MULT MultExp;
+ HII_DEPENDENCY_DIV DivExp;
+ HII_DEPENDENCY_MOD ModExp;
+ HII_DEPENDENCY_ADD AddExp;
+ HII_DEPENDENCY_SUBTRACT SubtractExp;
+ HII_DEPENDENCY_SHIFT_LEFT ShiftLeftExp;
+ HII_DEPENDENCY_SHIFT_RIGHT ShiftRightExp;
+ HII_DEPENDENCY_GREATER_THAN GreaterThanExp;
+ HII_DEPENDENCY_GREATER_EQUAL GreaterEqualExp;
+ HII_DEPENDENCY_LESS_THAN LessThanExp;
+ HII_DEPENDENCY_LESS_EQUAL LessEqualExp;
+ HII_DEPENDENCY_EQUAL EqualExp;
+ HII_DEPENDENCY_NOT_EQUAL NotEqualExp;
+ HII_DEPENDENCY_BITWISE_AND BitwiseAndExp;
+ HII_DEPENDENCY_BITWISE_OR BitwiseOrExp;
+ HII_DEPENDENCY_AND AndExp;
+ HII_DEPENDENCY_OR OrExp;
+
+ //
+ // ternary expression
+ //
+ HII_DEPENDENCY_CONDITIONAL ConditionalExp;
+ HII_DEPENDENCY_FIND FindExp;
+ HII_DEPENDENCY_MID MidExp;
+ HII_DEPENDENCY_TOKEN TokenExp;
+ HII_DEPENDENCY_SPAN SpanExp;
+ HII_DEPENDENCY_MAP MapExp;
+};
+
+//
+// Definition of HII_EXPRESSION_OPCODE
+//
+typedef struct {
+
+ UINTN Signature;
+ LIST_ENTRY Link;
+ UINT8 Operand;
+ HII_EXPRESSION_OPCODE_EXTRA ExtraData;
+ LIST_ENTRY MapExpressionList; // nested expressions inside of Map opcode.
+} HII_EXPRESSION_OPCODE;
+
+#define HII_EXPRESSION_OPCODE_SIGNATURE SIGNATURE_32 ('E', 'X', 'O', 'P')
+#define HII_EXPRESSION_OPCODE_FROM_LINK(a) CR (a, HII_EXPRESSION_OPCODE, Link, HII_EXPRESSION_OPCODE_SIGNATURE)
+
+//
+// Definition of HII_EXPRESSION
+//
+typedef struct {
+
+ UINTN Signature;
+ LIST_ENTRY Link;
+ UINT8 Type; // Type for this expression
+ EFI_IFR_OP_HEADER *OpCode; // Save the opcode buffer.
+ LIST_ENTRY OpCodeListHead; // OpCodes consist of this expression (HII_EXPRESSION_OPCODE)
+ HII_DEPENDENCY_EXPRESSION *RootDepdencyExp; // Expression OpCodes tree layout to describe dependency of this expression.
+
+ union {
+ UINT8 RuleId; // For EFI_IFR_RULE only
+ EFI_STRING_ID Error; // For EFI_IFR_NO_SUBMIT_IF, EFI_IFR_INCONSISTENT_IF only
+
+ struct {
+ EFI_STRING_ID WarningIfError;
+ UINT8 TimeOut;
+ } WarningIfData;
+
+ } ExtraData;
+
+ EFI_HII_VALUE Result; // Expression evaluation result
+
+} HII_EXPRESSION;
+
+#define HII_EXPRESSION_SIGNATURE SIGNATURE_32 ('F', 'E', 'X', 'P')
+#define HII_EXPRESSION_FROM_LINK(a) CR (a, HII_EXPRESSION, Link, HII_EXPRESSION_SIGNATURE)
+
+//
+// Definition of HII_EXPRESSION_LIST
+//
+typedef struct {
+ UINTN Signature;
+ UINTN Count;
+ HII_EXPRESSION *Expression[1]; // Array[Count] of expressions
+} HII_EXPRESSION_LIST;
+
+#define HII_EXPRESSION_LIST_SIGNATURE SIGNATURE_32 ('F', 'E', 'X', 'R')
+
+//
+// Definition of HII_STATEMENT_VALUE
+//
+typedef struct {
+
+ //
+ // HII Data Type
+ //
+ UINT8 Type;
+ EFI_IFR_TYPE_VALUE Value;
+ //
+ // Buffer Data and Length if Type is EFI_IFR_TYPE_BUFFER or EFI_IFR_TYPE_STRING
+ //
+ UINT8 *Buffer;
+ UINT16 BufferLen;
+ UINT8 BufferValueType; // Data type for buffer internal data, currently only for orderedlist
+
+} HII_STATEMENT_VALUE;
+
+//
+// Default value
+//
+typedef struct {
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ UINT16 DefaultId;
+ HII_STATEMENT_VALUE Value; // Default value
+
+ HII_EXPRESSION *ValueExpression; // Not-NULL indicates default value is provided by EFI_IFR_VALUE
+} HII_QUESTION_DEFAULT;
+
+#define HII_QUESTION_DEFAULT_SIGNATURE SIGNATURE_32 ('Q', 'D', 'F', 'T')
+#define HII_QUESTION_DEFAULT_FROM_LINK(a) CR (a, HII_QUESTION_DEFAULT, Link, HII_QUESTION_DEFAULT_SIGNATURE)
+
+#define HII_QUESTION_OPTION_SIGNATURE SIGNATURE_32 ('Q', 'O', 'P', 'T')
+
+//
+// Option value
+//
+typedef struct {
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ EFI_IFR_ONE_OF_OPTION *OpCode; // OneOfOption Data
+
+ EFI_STRING_ID Text;
+ UINT8 Flags;
+ HII_STATEMENT_VALUE Value;
+ EFI_IMAGE_ID ImageId;
+
+ HII_EXPRESSION_LIST *SuppressExpression; // Non-NULL indicates nested inside of SuppressIf
+} HII_QUESTION_OPTION;
+
+#define HII_QUESTION_OPTION_FROM_LINK(a) CR (a, HII_QUESTION_OPTION, Link, HII_QUESTION_OPTION_SIGNATURE)
+
+//
+//class of default
+//
+typedef struct {
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ UINT16 DefaultId;
+ EFI_STRING_ID DefaultName;
+} HII_FORMSET_DEFAULTSTORE;
+
+#define HII_FORMSET_DEFAULTSTORE_SIGNATURE SIGNATURE_32 ('F', 'D', 'F', 'S')
+#define HII_FORMSET_DEFAULTSTORE_FROM_LINK(a) CR (a, HII_FORMSET_DEFAULTSTORE, Link, HII_FORMSET_DEFAULTSTORE_SIGNATURE)
+
+//
+// Definition of HII_STATEMENT_EXTRA
+//
+typedef union {
+
+ UINT8 Flags;
+ EFI_STRING_ID TextTwo;
+ EFI_DEFAULT_ID DefaultId;
+ EFI_STRING_ID QuestionConfig;
+ EFI_GUID Guid;
+
+ struct {
+ UINT8 Flags;
+ UINT64 Minimum; // for EFI_IFR_ONE_OF/EFI_IFR_NUMERIC, it's Min/Max value
+ UINT64 Maximum; // for EFI_IFR_STRING/EFI_IFR_PASSWORD, it's Min/Max length
+ UINT64 Step;
+ EFI_GUID Guid;
+ } NumData;
+
+ struct {
+ UINT8 Flags;
+ UINT8 MaxContainers; // for EFI_IFR_ORDERED_LIST
+ } OrderListData;
+
+ struct {
+ UINT8 Flags;
+ UINT8 MinSize;
+ UINT8 MaxSize;
+ } StrData;
+
+ struct {
+ UINT16 MinSize;
+ UINT16 MaxSize;
+ } PwdData;
+
+} HII_STATEMENT_EXTRA;
+
+//
+// Statement (Question)
+//
+typedef struct _HII_STATEMENT HII_STATEMENT;
+struct _HII_STATEMENT{
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ UINT8 Operand; // The operand (first byte) of this Statement or Question
+ EFI_IFR_OP_HEADER *OpCode;
+
+ //
+ // Statement Header
+ //
+ EFI_STRING_ID Prompt;
+ EFI_STRING_ID Help;
+
+ //
+ // Question Header
+ //
+ EFI_QUESTION_ID QuestionId; // Question id, the value of zero is reserved
+ EFI_VARSTORE_ID VarStoreId; // VarStore id, a value of zero indicates no variable storage
+ HII_VAR_STORE_INFO VarStoreInfo; // VarStoreInfoIf VarStoreId refers to Buffer Storage (EFI_IFR_VARSTORE or EFI_IFR_VARSTORE_EFI), then VarStoreInfo contains a 16-bit Buffer Storage offset (VarOffset).
+ // If VarStoreId refers to Name/Value Storage (EFI_IFR_VARSTORE_NAME_VALUE), then VarStoreInfo contains the String ID of the name (VarName) for this name/value pair.
+ UINT8 QuestionFlags; // The flag of this Question.(Readonly, reset required, calback attribute....)
+
+ BOOLEAN QuestionReferToBitField; // Whether the question is stored in a bit field.
+ UINT16 StorageWidth; // The storage width of this Question.
+ UINT16 BitStorageWidth; // The Storage width of this Question in bit level.
+ UINT16 BitVarOffset; // The storahe offset of this Question in bit level.
+ CHAR16 *VariableName; // Name/Value or EFI Variable name
+ CHAR16 *BlockName; // Buffer storage block name: "OFFSET=...WIDTH=..."
+
+ HII_FORMSET_STORAGE *Storage; // Point to the storage that store this question.
+ HII_STATEMENT_EXTRA ExtraData;
+
+ BOOLEAN Locked; // Whether this statement is locked.
+
+ HII_STATEMENT_VALUE Value;
+
+ //
+ // Get from IFR parsing
+ //
+
+ HII_STATEMENT *ParentStatement; // Parent Statement of current statement.
+ HII_EXPRESSION_LIST *ExpressionList; // nesting inside of GrayOutIf/DisableIf/SuppressIf
+ HII_EXPRESSION *ValueExpression; // nested EFI_IFR_VALUE, provide Question value and indicate Question is ReadOnly
+
+ EFI_IMAGE_ID ImageId; // nested EFI_IFR_IMAGE
+ UINT8 RefreshInterval; // nested EFI_IFR_REFRESH, refresh interval(in seconds) for Question value, 0 means no refresh
+
+ LIST_ENTRY DefaultListHead; // nested EFI_IFR_DEFAULT list (HII_QUESTION_DEFAULT), provide default values
+ LIST_ENTRY OptionListHead; // nested EFI_IFR_ONE_OF_OPTION list (HII_QUESTION_OPTION)
+ LIST_ENTRY InconsistentListHead; // nested inconsistent expression list (HII_EXPRESSION)
+ LIST_ENTRY NoSubmitListHead; // nested nosubmit expression list (HII_EXPRESSION)
+ LIST_ENTRY WarningListHead; // nested warning expression list (HII_EXPRESSION)
+
+ HII_EXPRESSION *ReadExpression; // nested EFI_IFR_READ, provide this question value by read expression.
+ HII_EXPRESSION *WriteExpression; // nested EFI_IFR_WRITE, evaluate write expression after this question value is set.
+};
+
+#define HII_STATEMENT_SIGNATURE SIGNATURE_32 ('H', 'S', 'T', 'A')
+#define HII_STATEMENT_FROM_LINK(a) CR (a, HII_STATEMENT, Link, HII_STATEMENT_SIGNATURE)
+
+//
+// Form
+//
+#define STANDARD_MAP_FORM_TYPE 0x01
+
+typedef struct {
+
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ UINT16 FormId; // FormId of normal form or formmap form.
+ EFI_STRING_ID FormTitle; // FormTile of normal form, or FormMapMethod title of formmap form.
+ UINT16 FormType; // Specific form type for the different form.
+
+ EFI_IMAGE_ID ImageId; // The image id.
+
+ BOOLEAN ModalForm; // Whether this is a modal form.
+ BOOLEAN Locked; // Whether this form is locked.
+ EFI_GUID RefreshGuid; // Form refresh event guid.
+
+ LIST_ENTRY StatementListHead; // List of Statements and Questions (HII_STATEMENT)
+ LIST_ENTRY ConfigRequestHead; // List of configreques for all storage.
+ LIST_ENTRY RuleListHead; // nesed EFI_IFR_RULE list, pre-defined expressions attached to the form.
+ HII_EXPRESSION_LIST *SuppressExpression; // nesting inside of SuppressIf
+
+} HII_FORM;
+
+
+#define HII_FORM_SIGNATURE SIGNATURE_32 ('F', 'F', 'R', 'M')
+#define HII_FORM_FROM_LINK(a) CR (a, HII_FORM, Link, HII_FORM_SIGNATURE)
+
+//
+// FormSet
+//
+typedef struct {
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ EFI_HII_HANDLE HiiHandle; // Unique id for formset, HII Hanlde of this FormSet package.
+ EFI_HANDLE DriverHandle; // EFI_HANDLE which was registered with the package list in NewPackageList().
+ EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess; // ConfigAccess Protocol associated with this HiiPackageList
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+
+ UINTN IfrBinaryLength; // Ifr binary data length of this formset.
+ UINT8 *IfrBinaryData; // Point to the Ifr binary data.
+
+ EFI_GUID Guid; // Formset Guid.
+ EFI_STRING_ID FormSetTitle; // String Id of Formset title.
+ EFI_STRING_ID Help; // String Id of Formset title.
+
+ UINT8 NumberOfClassGuid; // Class Guid name
+ EFI_GUID ClassGuid[3]; // Up to three ClassGuid
+
+ EFI_IMAGE_ID ImageId; // The image id.
+
+ LIST_ENTRY StatementListOSF; // Statement list out side of the form.
+ LIST_ENTRY StorageListHead; // Storage list (HII_FORMSET_STORAGE)
+ LIST_ENTRY DefaultStoreListHead; // DefaultStore list (HII_FORMSET_DEFAULTSTORE)
+ LIST_ENTRY FormListHead; // Form list (HII_FORM_BROWSER_FORM)
+
+} HII_FORMSET;
+
+
+#define HII_FORMSET_SIGNATURE SIGNATURE_32 ('H', 'I', 'F', 'S')
+#define HII_FORMSET_FROM_LINK(a) CR (a, HII_FORMSET, Link, HII_FORMSET_SIGNATURE)
+
+//
+// Get/set question value from/to.
+//
+typedef enum {
+ GetSetValueWithBuffer = 0, // Get/Set question value from/to buffer in the storage.
+ GetSetValueWithHiiDriver, // Get/Set question value from/to hii driver.
+ GetSetValueWithBoth, // Compare the editbuffer with buffer for this question, not use the question value.
+ GetSetValueWithMax // Invalid value.
+} GET_SET_QUESTION_VALUE_WITH;
+
+/**
+ Initialize the internal data structure of a FormSet.
+
+ @param Handle PackageList Handle
+ @param FormSetGuid On input, GUID or class GUID of a formset. If not
+ specified (NULL or zero GUID), take the first
+ FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
+ found in package list.
+ On output, GUID of the formset found(if not NULL).
+ @param FormSet FormSet data structure.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_FOUND The specified FormSet could not be found.
+
+**/
+EFI_STATUS
+CreateFormSetFromHiiHandle (
+ IN EFI_HII_HANDLE Handle,
+ IN OUT EFI_GUID *FormSetGuid,
+ OUT HII_FORMSET *FormSet
+ );
+
+/**
+ Initialize a Formset and get current setting for Questions.
+
+ @param FormSet FormSet data structure.
+
+**/
+VOID
+InitializeFormSet (
+ IN OUT HII_FORMSET *FormSet
+ );
+
+/**
+ Free resources allocated for a FormSet.
+
+ @param FormSet Pointer of the FormSet
+
+**/
+VOID
+DestroyFormSet (
+ IN OUT HII_FORMSET *FormSet
+ );
+
+/**
+ Save Question Value to the memory, but not to storage.
+
+ @param FormSet FormSet data structure.
+ @param Form Form data structure.
+ @param Question Pointer to the Question.
+ @param QuestionValue New Question Value to be set.
+
+ @retval EFI_SUCCESS The question value has been set successfully.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+
+**/
+EFI_STATUS
+SetQuestionValue (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_STATEMENT *Question,
+ IN HII_STATEMENT_VALUE *QuestionValue
+ );
+
+/**
+ Get Question's current Value from storage.
+
+ @param FormSet FormSet data structure.
+ @param Form Form data structure.
+ @param Question Question to be initialized.
+
+ @return the current Question Value in storage if success.
+ @return NULL if Question is not found or any error occurs.
+
+**/
+HII_STATEMENT_VALUE *
+RetrieveQuestion (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_STATEMENT *Question
+ );
+
+/**
+ Get Question's current Value.
+
+ @param[in] FormSet FormSet data structure.
+ @param[in] Form Form data structure.
+ @param[out] Question Question to be initialized.
+ @param[in] GetValueFrom Where to get value, may from editbuffer, buffer or hii driver.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Formset, Form or Question is NULL.
+
+**/
+EFI_STATUS
+GetQuestionValue (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_STATEMENT *Question,
+ IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
+ );
+
+/**
+ Submit data for a form.
+
+ @param FormSet FormSet which contains the Form.
+ @param Form Form to submit.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval Others Other errors occur.
+
+**/
+EFI_STATUS
+SubmitForm (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form
+ );
+
+/**
+ 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
+EvaluateHiiExpression (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_EXPRESSION *Expression
+ );
+
+/**
+ Retrieve dependencies within an expression. These dependencies can express how
+ this expression will be evaluated.
+
+ @param Expression Expression to retrieve dependencies.
+
+ @retval EFI_SUCCESS The dependencies were successfully retrieved.
+ @retval EFI_OUT_OF_RESOURCES There is not enough system memory.
+
+**/
+EFI_STATUS
+GetHiiExpressionDependency (
+ IN HII_EXPRESSION *Expression
+ );
+
+/**
+ 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
+HpEvaluateHiiExpression (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_EXPRESSION *Expression
+ );
+
+#endif // _HII_UTILITY_LIB_
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiExpression.h b/RedfishPkg/Library/HiiUtilityLib/HiiExpression.h
new file mode 100644
index 00000000000..e96c07b4de2
--- /dev/null
+++ b/RedfishPkg/Library/HiiUtilityLib/HiiExpression.h
@@ -0,0 +1,190 @@
+/** @file
+ Definitinos of RedfishPlatformConfigLib
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef HII_EXPRESSION_H_
+#define HII_EXPRESSION_H_
+
+#include <Library/HiiUtilityLib.h>
+
+/**
+ Get the expression list count.
+
+ @param[in] 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
+ );
+
+/**
+ Get the expression Buffer pointer.
+
+ @param[in] Level Which type this expression belong to. Form,
+ statement or option?
+
+ @retval The start pointer of the expression buffer or NULL.
+
+**/
+HII_EXPRESSION **
+GetConditionalExpressionList (
+ IN EXPRESS_LEVEL Level
+ );
+
+/**
+ Push the expression options onto the Stack.
+
+ @param[in] Pointer Pointer to the current expression.
+ @param[in] 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 HII_EXPRESSION *Pointer,
+ IN EXPRESS_LEVEL Level
+ );
+
+/**
+ Pop the expression options from the Stack
+
+ @param[in] 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
+ );
+
+/**
+ Reset stack pointer to begin of the stack.
+
+**/
+VOID
+ResetCurrentExpressionStack (
+ VOID
+ );
+
+/**
+ Push current expression onto the Stack
+
+ @param[in] 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
+ );
+
+/**
+ Pop current expression from the Stack
+
+ @param[in] 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
+ );
+
+/**
+ Reset stack pointer to begin of the stack.
+
+**/
+VOID
+ResetMapExpressionListStack (
+ VOID
+ );
+
+/**
+ Push the list of map expression onto the Stack
+
+ @param[in] 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
+ );
+
+/**
+ Pop the list of map expression from the Stack
+
+ @param[in] 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
+ );
+
+/**
+ Reset stack pointer to begin of the stack.
+
+**/
+VOID
+ResetScopeStack (
+ VOID
+ );
+
+/**
+ Push an Operand onto the Stack
+
+ @param[in] 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
+ );
+
+/**
+ Pop an Operand from the Stack
+
+ @param[out] 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
+ );
+
+#endif
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiInternal.h b/RedfishPkg/Library/HiiUtilityLib/HiiInternal.h
new file mode 100644
index 00000000000..1106896dc46
--- /dev/null
+++ b/RedfishPkg/Library/HiiUtilityLib/HiiInternal.h
@@ -0,0 +1,371 @@
+/** @file
+ Definitinos of RedfishPlatformConfigLib
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef HII_INTERNAL_H_
+#define HII_INTERNAL_H_
+
+#include <Uefi.h>
+
+#include <Protocol/UnicodeCollation.h>
+#include <Protocol/HiiConfigRouting.h>
+#include <Protocol/HiiDatabase.h>
+#include <Protocol/UserManager.h>
+#include <Protocol/DevicePathFromText.h>
+#include <Protocol/RegularExpressionProtocol.h>
+
+#include <Guid/MdeModuleHii.h>
+#include <Guid/ZeroGuid.h>
+#include <Guid/HiiPlatformSetupFormset.h>
+#include <Guid/HiiFormMapMethodGuid.h>
+
+#include <Library/PrintLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/HiiLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/UefiLib.h>
+
+#include "HiiExpression.h"
+#include <Library/HiiUtilityLib.h>
+
+typedef struct {
+
+ UINTN Signature;
+ LIST_ENTRY Link;
+
+ CHAR16 *ConfigRequest; // <ConfigRequest> = <ConfigHdr> + <RequestElement>
+ CHAR16 *ConfigAltResp; // Alt config response string for this ConfigRequest.
+ UINTN ElementCount; // Number of <RequestElement> in the <ConfigRequest>
+ UINTN SpareStrLen;
+ CHAR16 *RestoreConfigRequest; // When submit form fail, the element need to be restored
+ CHAR16 *SyncConfigRequest; // When submit form fail, the element need to be synced
+
+ HII_FORMSET_STORAGE *Storage;
+} HII_FORM_CONFIG_REQUEST;
+
+#define HII_FORM_CONFIG_REQUEST_SIGNATURE SIGNATURE_32 ('F', 'C', 'R', 'S')
+#define HII_FORM_CONFIG_REQUEST_FROM_LINK(a) CR (a, HII_FORM_CONFIG_REQUEST, Link, HII_FORM_CONFIG_REQUEST_SIGNATURE)
+
+// Incremental string lenght of ConfigRequest
+//
+#define CONFIG_REQUEST_STRING_INCREMENTAL 1024
+
+/**
+ Allocate new memory and then copy the Unicode string Source to Destination.
+
+ @param Dest Location to copy string
+ @param Src String to copy
+
+**/
+VOID
+NewStringCpy (
+ IN OUT CHAR16 **Dest,
+ IN CHAR16 *Src
+ );
+
+/**
+ Set Value of given Name in a NameValue Storage.
+
+ @param Storage The NameValue Storage.
+ @param Name The Name.
+ @param Value The Value to set.
+ @param ReturnNode The node use the input name.
+
+ @retval EFI_SUCCESS Value found for given Name.
+ @retval EFI_NOT_FOUND No such Name found in NameValue storage.
+
+**/
+EFI_STATUS
+SetValueByName (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *Name,
+ IN CHAR16 *Value,
+ OUT HII_NAME_VALUE_NODE **ReturnNode
+ );
+
+/**
+ Get bit field value from the buffer and then set the value for the question.
+ Note: Data type UINT32 can cover all the bit field value.
+
+ @param Question The question refer to bit field.
+ @param Buffer Point to the buffer which the question value get from.
+ @param QuestionValue The Question Value retrieved from Bits.
+
+**/
+VOID
+GetBitsQuestionValue (
+ IN HII_STATEMENT *Question,
+ IN UINT8 *Buffer,
+ OUT HII_STATEMENT_VALUE *QuestionValue
+ );
+
+/**
+ Set bit field value to the buffer.
+ Note: Data type UINT32 can cover all the bit field value.
+
+ @param Question The question refer to bit field.
+ @param Buffer Point to the buffer which the question value set to.
+ @param Value The bit field value need to set.
+
+**/
+VOID
+SetBitsQuestionValue (
+ IN HII_STATEMENT *Question,
+ IN OUT UINT8 *Buffer,
+ IN UINT32 Value
+ );
+
+/**
+ Convert the buffer value to HiiValue.
+
+ @param Question The question.
+ @param Value Unicode buffer save the question value.
+ @param QuestionValue The Question Value retrieved from Buffer.
+
+ @retval Status whether convert the value success.
+
+**/
+EFI_STATUS
+BufferToValue (
+ IN HII_STATEMENT *Question,
+ IN CHAR16 *Value,
+ OUT HII_STATEMENT_VALUE *QuestionValue
+ );
+
+/**
+ Get the string based on the StringId and HII Package List Handle.
+
+ @param Token The String's ID.
+ @param HiiHandle The package list in the HII database to search for
+ the specified string.
+
+ @return The output string.
+
+**/
+CHAR16*
+GetToken (
+ IN EFI_STRING_ID Token,
+ IN EFI_HII_HANDLE HiiHandle
+ );
+
+/**
+ Converts the unicode character of the string from uppercase to lowercase.
+ This is a internal function.
+
+ @param ConfigString String to be converted
+
+**/
+VOID
+EFIAPI
+HiiToLower (
+ IN EFI_STRING ConfigString
+ );
+
+/**
+ Evaluate if the result is a non-zero value.
+
+ @param Result The result to be evaluated.
+
+ @retval TRUE It is a non-zero value.
+ @retval FALSE It is a zero value.
+
+**/
+BOOLEAN
+IsTrue (
+ IN EFI_HII_VALUE *Result
+ );
+
+/**
+ Set a new string to string package.
+
+ @param[in] String A pointer to the Null-terminated Unicode string
+ to add or update in the String Package associated
+ with HiiHandle.
+ @param[in] HiiHandle A handle that was previously registered in the
+ HII Database.
+
+ @return the Id for this new string.
+
+**/
+EFI_STRING_ID
+NewString (
+ IN CHAR16 *String,
+ IN EFI_HII_HANDLE HiiHandle
+ );
+
+/**
+ Perform nosubmitif check for a Form.
+
+ @param FormSet FormSet data structure.
+ @param Form Form data structure.
+ @param Question The Question to be validated.
+
+ @retval EFI_SUCCESS Form validation pass.
+ @retval other Form validation failed.
+
+**/
+EFI_STATUS
+ValidateNoSubmit (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN HII_STATEMENT *Question
+ );
+
+/**
+ Perform NoSubmit check for each Form in FormSet.
+
+ @param FormSet FormSet data structure.
+ @param CurrentForm Current input form data structure.
+ @param Statement The statement for this check.
+
+ @retval EFI_SUCCESS Form validation pass.
+ @retval other Form validation failed.
+
+**/
+EFI_STATUS
+NoSubmitCheck (
+ IN HII_FORMSET *FormSet,
+ IN OUT HII_FORM **CurrentForm,
+ OUT HII_STATEMENT **Statement
+ );
+
+
+/**
+ Convert setting of Buffer Storage or NameValue Storage to <ConfigResp>.
+
+ @param Storage The Storage to be conveted.
+ @param ConfigResp The returned <ConfigResp>.
+ @param ConfigRequest The ConfigRequest string.
+
+ @retval EFI_SUCCESS Convert success.
+ @retval EFI_INVALID_PARAMETER Incorrect storage type.
+
+**/
+EFI_STATUS
+StorageToConfigResp (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 **ConfigResp,
+ IN CHAR16 *ConfigRequest
+ );
+
+
+/**
+ Convert <ConfigResp> to settings in Buffer Storage or NameValue Storage.
+
+ @param Storage The Storage to receive the settings.
+ @param ConfigResp The <ConfigResp> to be converted.
+
+ @retval EFI_SUCCESS Convert success.
+ @retval EFI_INVALID_PARAMETER Incorrect storage type.
+
+**/
+EFI_STATUS
+ConfigRespToStorage (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *ConfigResp
+ );
+
+/**
+ Fetch the Ifr binary data of a FormSet.
+
+ @param Handle PackageList Handle
+ @param FormSetGuid On input, GUID or class GUID of a formset. If not
+ specified (NULL or zero GUID), take the first
+ FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
+ found in package list.
+ On output, GUID of the formset found(if not NULL).
+ @param BinaryLength The length of the FormSet IFR binary.
+ @param BinaryData The buffer designed to receive the FormSet.
+
+ @retval EFI_SUCCESS Buffer filled with the requested FormSet.
+ BufferLength was updated.
+ @retval EFI_INVALID_PARAMETER The handle is unknown.
+ @retval EFI_NOT_FOUND A form or FormSet on the requested handle cannot
+ be found with the requested FormId.
+
+**/
+EFI_STATUS
+GetIfrBinaryData (
+ IN EFI_HII_HANDLE Handle,
+ IN OUT EFI_GUID *FormSetGuid,
+ OUT UINTN *BinaryLength,
+ OUT UINT8 **BinaryData
+ );
+
+/**
+ Fill storage with settings requested from Configuration Driver.
+
+ @param FormSet FormSet data structure.
+ @param Storage Buffer Storage.
+
+**/
+VOID
+LoadStorage (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORMSET_STORAGE *Storage
+ );
+
+/**
+ Free resources of a Form.
+
+ @param FormSet Pointer of the FormSet
+ @param Form Pointer of the Form.
+
+**/
+VOID
+DestroyForm (
+ IN HII_FORMSET *FormSet,
+ IN OUT HII_FORM *Form
+ );
+
+/**
+ Get formset storage based on the input varstoreid info.
+
+ @param FormSet Pointer of the current FormSet.
+ @param VarStoreId Varstore ID info.
+
+ @return Pointer to a HII_FORMSET_STORAGE data structure.
+
+**/
+HII_FORMSET_STORAGE *
+GetFstStgFromVarId (
+ IN HII_FORMSET *FormSet,
+ IN EFI_VARSTORE_ID VarStoreId
+ );
+
+/**
+ Zero extend integer/boolean/date/time to UINT64 for comparing.
+
+ @param Value HII Value to be converted.
+
+**/
+VOID
+ExtendValueToU64 (
+ IN HII_STATEMENT_VALUE *Value
+ );
+
+/**
+ Parse opcodes in the formset IFR binary.
+
+ @param FormSet Pointer of the FormSet data structure.
+
+ @retval EFI_SUCCESS Opcode parse success.
+ @retval Other Opcode parse fail.
+
+**/
+EFI_STATUS
+ParseOpCodes (
+ IN HII_FORMSET *FormSet
+ );
+
+#endif // _HII_INTERNAL_H_
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiExpression.c b/RedfishPkg/Library/HiiUtilityLib/HiiExpression.c
new file mode 100644
index 00000000000..7111b40acf0
--- /dev/null
+++ b/RedfishPkg/Library/HiiUtilityLib/HiiExpression.c
@@ -0,0 +1,1367 @@
+/** @file
+ Definitinos of RedfishPlatformConfigLib
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include "HiiInternal.h"
+
+//
+// Global stack used to evaluate boolean expresions
+//
+EFI_HII_VALUE *mOpCodeScopeStack = NULL;
+EFI_HII_VALUE *mOpCodeScopeStackEnd = NULL;
+EFI_HII_VALUE *mOpCodeScopeStackPointer = NULL;
+
+//
+// Stack used for Suppressif/grayoutif/dusableif expression list.
+//
+HII_EXPRESSION **mFormExpressionStack = NULL;
+HII_EXPRESSION **mFormExpressionEnd = NULL;
+HII_EXPRESSION **mFormExpressionPointer = NULL;
+
+HII_EXPRESSION **mStatementExpressionStack = NULL;
+HII_EXPRESSION **mStatementExpressionEnd = NULL;
+HII_EXPRESSION **mStatementExpressionPointer = NULL;
+
+HII_EXPRESSION **mOptionExpressionStack = NULL;
+HII_EXPRESSION **mOptionExpressionEnd = NULL;
+HII_EXPRESSION **mOptionExpressionPointer = NULL;
+
+//
+// Stack used for the sub expresion in map expression.
+//
+EFI_HII_VALUE *mCurrentExpressionStack = NULL;
+EFI_HII_VALUE *mCurrentExpressionEnd = NULL;
+EFI_HII_VALUE *mCurrentExpressionPointer = NULL;
+
+//
+// Stack used for the map expression list.
+//
+EFI_HII_VALUE *mMapExpressionListStack = NULL;
+EFI_HII_VALUE *mMapExpressionListEnd = NULL;
+EFI_HII_VALUE *mMapExpressionListPointer = NULL;
+
+//
+// Stack used for dependency expression.
+//
+HII_DEPENDENCY_EXPRESSION **mExpressionDependencyStack = NULL;
+HII_DEPENDENCY_EXPRESSION **mExpressionDependencyEnd = NULL;
+HII_DEPENDENCY_EXPRESSION **mExpressionDependencyPointer = NULL;
+
+#define EXPRESSION_STACK_SIZE_INCREMENT 0x100
+
+/**
+ 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);
+ if ((*StackPtr)->Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ }
+ *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 HII_EXPRESSION ***Stack,
+ IN OUT HII_EXPRESSION ***StackPtr,
+ IN OUT HII_EXPRESSION ***StackEnd,
+ IN UINTN MemberSize
+ )
+{
+ UINTN Size;
+ HII_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 HII_EXPRESSION ***Stack,
+ IN OUT HII_EXPRESSION ***StackPtr,
+ IN OUT HII_EXPRESSION ***StackEnd,
+ IN HII_EXPRESSION **Data
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Check for a stack overflow condition
+ //
+ if (*StackPtr >= *StackEnd) {
+ //
+ // Grow the stack
+ //
+ Status = GrowConditionalStack (Stack, StackPtr, StackEnd, sizeof (HII_EXPRESSION *));
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ //
+ // Push the item onto the stack
+ //
+ CopyMem (*StackPtr, Data, sizeof (HII_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 HII_EXPRESSION **Stack,
+ IN OUT HII_EXPRESSION ***StackPtr,
+ OUT HII_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 (HII_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.
+
+**/
+HII_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 HII_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
+ )
+{
+ HII_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;
+}
+
+/**
+ Grow size of the stack for Expression Dependencies.
+
+ 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 Dependency stack success.
+ @retval EFI_OUT_OF_RESOURCES No enough memory for stack space.
+
+**/
+EFI_STATUS
+GrowDependencyStack (
+ IN OUT HII_DEPENDENCY_EXPRESSION ***Stack,
+ IN OUT HII_DEPENDENCY_EXPRESSION ***StackPtr,
+ IN OUT HII_DEPENDENCY_EXPRESSION ***StackEnd
+ )
+{
+ UINTN Size;
+ HII_DEPENDENCY_EXPRESSION **NewStack;
+
+ Size = EXPRESSION_STACK_SIZE_INCREMENT;
+ if (*StackPtr != NULL) {
+ Size = Size + (*StackEnd - *Stack);
+ }
+
+ NewStack = AllocatePool (Size * sizeof (HII_DEPENDENCY_EXPRESSION *));
+ 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 (HII_DEPENDENCY_EXPRESSION *)
+ );
+
+ //
+ // 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 for Expression Dependencies.
+
+ @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
+PushDependencyStack (
+ IN OUT HII_DEPENDENCY_EXPRESSION ***Stack,
+ IN OUT HII_DEPENDENCY_EXPRESSION ***StackPtr,
+ IN OUT HII_DEPENDENCY_EXPRESSION ***StackEnd,
+ IN HII_DEPENDENCY_EXPRESSION **Data
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Check for a stack overflow condition
+ //
+ if (*StackPtr >= *StackEnd) {
+ //
+ // Grow the stack
+ //
+ Status = GrowDependencyStack (Stack, StackPtr, StackEnd);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ //
+ // Push the item onto the stack
+ //
+ CopyMem (*StackPtr, Data, sizeof (HII_DEPENDENCY_EXPRESSION *));
+ *StackPtr = *StackPtr + 1;
+
+ return EFI_SUCCESS;
+
+}
+
+/**
+ Pop the Expression Dependency options from 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 Data Data 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
+PopDependencyStack (
+ IN HII_DEPENDENCY_EXPRESSION **Stack,
+ IN OUT HII_DEPENDENCY_EXPRESSION ***StackPtr,
+ OUT HII_DEPENDENCY_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 (HII_DEPENDENCY_EXPRESSION *));
+ return EFI_SUCCESS;
+
+}
+
+/**
+ Push the list of Expression Dependencies 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
+PushDependencyExpDes (
+ IN HII_DEPENDENCY_EXPRESSION **Pointer
+ )
+{
+ return PushDependencyStack (
+ &mExpressionDependencyStack,
+ &mExpressionDependencyPointer,
+ &mExpressionDependencyEnd,
+ Pointer
+ );
+}
+
+/**
+ Pop the list of Expression Dependencies 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
+PopDependencyExpDes (
+ OUT HII_DEPENDENCY_EXPRESSION **Pointer
+ )
+{
+ return PopDependencyStack (
+ mExpressionDependencyStack,
+ &mExpressionDependencyPointer,
+ Pointer
+ );
+}
+
+/**
+ Retrieve dependencies within an expression. These dependencies can express how
+ this expression will be evaluated.
+
+ @param Expression Expression to retrieve dependencies.
+
+ @retval EFI_SUCCESS The dependencies were successfully retrieved.
+ @retval EFI_OUT_OF_RESOURCES There is not enough system memory.
+
+**/
+EFI_STATUS
+GetHiiExpressionDependency (
+ IN OUT HII_EXPRESSION *Expression
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ HII_EXPRESSION_OPCODE *ExpressionOpCode;
+ HII_DEPENDENCY_EXPRESSION *DepExpressionOpCode;
+ LIST_ENTRY *SubExpressionLink;
+ HII_EXPRESSION *SubExpression;
+ UINT8 MapPairpCount;
+
+ Link = GetFirstNode (&Expression->OpCodeListHead);
+ while (!IsNull (&Expression->OpCodeListHead, Link)) {
+
+ ExpressionOpCode = HII_EXPRESSION_OPCODE_FROM_LINK (Link);
+ Link = GetNextNode (&Expression->OpCodeListHead, Link);
+ Status = EFI_SUCCESS;
+
+ DepExpressionOpCode = (HII_DEPENDENCY_EXPRESSION *) AllocateZeroPool (sizeof (HII_DEPENDENCY_EXPRESSION));
+ if (DepExpressionOpCode == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ switch (ExpressionOpCode->Operand) {
+ //
+ // Constant
+ //
+ case EFI_IFR_FALSE_OP:
+ case EFI_IFR_ONE_OP:
+ case EFI_IFR_ONES_OP:
+ case EFI_IFR_TRUE_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:
+ DepExpressionOpCode->ContantExp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->ContantExp.Value, &ExpressionOpCode->ExtraData.Value, sizeof (EFI_HII_VALUE));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ //
+ // Built-in functions
+ //
+ case EFI_IFR_DUP_OP:
+ DepExpressionOpCode->DupExp.Operand = ExpressionOpCode->Operand;
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_EQ_ID_VAL_OP:
+ DepExpressionOpCode->EqIdValExp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->EqIdValExp.QuestionId, &ExpressionOpCode->ExtraData.EqIdValData.QuestionId, sizeof (EFI_QUESTION_ID));
+ CopyMem (&DepExpressionOpCode->EqIdValExp.Value, &ExpressionOpCode->ExtraData.EqIdValData.Value, sizeof (EFI_HII_VALUE));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_EQ_ID_ID_OP:
+ DepExpressionOpCode->EqIdIdExp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->EqIdIdExp.QuestionId1, &ExpressionOpCode->ExtraData.EqIdIdData.QuestionId1, sizeof (EFI_QUESTION_ID));
+ CopyMem (&DepExpressionOpCode->EqIdIdExp.QuestionId2, &ExpressionOpCode->ExtraData.EqIdIdData.QuestionId2, sizeof (EFI_QUESTION_ID));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_EQ_ID_VAL_LIST_OP:
+ DepExpressionOpCode->EqIdListExp.Operand = ExpressionOpCode->Operand;
+ DepExpressionOpCode->EqIdListExp.ListLength = ExpressionOpCode->ExtraData.EqIdListData.ListLength;
+ CopyMem (&DepExpressionOpCode->EqIdListExp.QuestionId, &ExpressionOpCode->ExtraData.EqIdListData.QuestionId, sizeof (EFI_QUESTION_ID));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ DepExpressionOpCode->EqIdListExp.ValueList = AllocateCopyPool (
+ DepExpressionOpCode->EqIdListExp.ListLength * sizeof (UINT16), ExpressionOpCode->ExtraData.EqIdListData.ValueList);
+ if (DepExpressionOpCode->EqIdListExp.ValueList == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_GET_OP:
+ DepExpressionOpCode->GetExp.Operand = ExpressionOpCode->Operand;
+ DepExpressionOpCode->GetExp.VarStorage = ExpressionOpCode->ExtraData.GetSetData.VarStorage;
+ CopyMem (&DepExpressionOpCode->GetExp.VarStoreInfo.VarName, &ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo.VarName, sizeof (EFI_STRING_ID));
+ CopyMem (&DepExpressionOpCode->GetExp.VarStoreInfo.VarOffset, &ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset, sizeof (UINT16));
+ DepExpressionOpCode->GetExp.VarStoreInfo = ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo;
+ if (ExpressionOpCode->ExtraData.GetSetData.ValueName != NULL) {
+ DepExpressionOpCode->GetExp.ValueName = (CHAR16*)AllocateCopyPool (sizeof (ExpressionOpCode->ExtraData.GetSetData.ValueName), ExpressionOpCode->ExtraData.GetSetData.ValueName);
+ if (DepExpressionOpCode->GetExp.ValueName == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ }
+ DepExpressionOpCode->GetExp.ValueType = ExpressionOpCode->ExtraData.GetSetData.ValueType;
+ DepExpressionOpCode->GetExp.ValueWidth = ExpressionOpCode->ExtraData.GetSetData.ValueWidth;
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_QUESTION_REF1_OP:
+ DepExpressionOpCode->QuestionRef1Exp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->QuestionRef1Exp.QuestionId, &ExpressionOpCode->ExtraData.QuestionRef1Data.QuestionId, sizeof (EFI_QUESTION_ID));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_RULE_REF_OP:
+ DepExpressionOpCode->RuleRefExp.Operand = ExpressionOpCode->Operand;
+ DepExpressionOpCode->RuleRefExp.RuleId = ExpressionOpCode->ExtraData.RuleId;
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_STRING_REF1_OP:
+ DepExpressionOpCode->StringRef1Exp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->StringRef1Exp.Value.Value.string, &ExpressionOpCode->ExtraData.Value.Value.string, sizeof (EFI_STRING_ID));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_THIS_OP:
+ DepExpressionOpCode->ThisExp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->ThisExp.QuestionId, &ExpressionOpCode->ExtraData.QuestionRef1Data.QuestionId, sizeof (EFI_QUESTION_ID));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_SECURITY_OP:
+ DepExpressionOpCode->SecurityExp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->SecurityExp.Permissions, &ExpressionOpCode->ExtraData.Guid, sizeof (EFI_GUID));
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ //
+ // unary-op
+ //
+ case EFI_IFR_LENGTH_OP:
+ DepExpressionOpCode->LengthExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->LengthExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_NOT_OP:
+ DepExpressionOpCode->NotExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->NotExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_BITWISE_NOT_OP:
+ DepExpressionOpCode->BitWiseNotExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->BitWiseNotExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_QUESTION_REF2_OP:
+ DepExpressionOpCode->QuestionRef2Exp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->QuestionRef2Exp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_QUESTION_REF3_OP:
+ DepExpressionOpCode->QuestionRef3Exp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->QuestionRef3Exp.DevicePath, &ExpressionOpCode->ExtraData.QuestionRef3Data.DevicePath, sizeof (EFI_DEVICE_PATH));
+ CopyMem (&DepExpressionOpCode->QuestionRef3Exp.Guid, &ExpressionOpCode->ExtraData.QuestionRef3Data.Guid, sizeof (EFI_GUID));
+ PopDependencyExpDes (&DepExpressionOpCode->QuestionRef3Exp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_SET_OP:
+ DepExpressionOpCode->SetExp.Operand = ExpressionOpCode->Operand;
+ DepExpressionOpCode->SetExp.VarStorage = ExpressionOpCode->ExtraData.GetSetData.VarStorage;
+ CopyMem (&DepExpressionOpCode->SetExp.VarStoreInfo.VarName, &ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo.VarName, sizeof (EFI_STRING_ID));
+ CopyMem (&DepExpressionOpCode->SetExp.VarStoreInfo.VarOffset, &ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset, sizeof (UINT16));
+ DepExpressionOpCode->SetExp.VarStoreInfo = ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo;
+ if (ExpressionOpCode->ExtraData.GetSetData.ValueName != NULL) {
+ DepExpressionOpCode->SetExp.ValueName = (CHAR16*)AllocateCopyPool (sizeof (ExpressionOpCode->ExtraData.GetSetData.ValueName), ExpressionOpCode->ExtraData.GetSetData.ValueName);
+ if (DepExpressionOpCode->SetExp.ValueName == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ }
+ DepExpressionOpCode->SetExp.ValueType = ExpressionOpCode->ExtraData.GetSetData.ValueType;
+ DepExpressionOpCode->SetExp.ValueWidth = ExpressionOpCode->ExtraData.GetSetData.ValueWidth;
+ PopDependencyExpDes (&DepExpressionOpCode->SetExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_STRING_REF2_OP:
+ DepExpressionOpCode->StringRef2Exp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->StringRef2Exp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_TO_BOOLEAN_OP:
+ DepExpressionOpCode->ToBooleanExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ToBooleanExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_TO_STRING_OP:
+ DepExpressionOpCode->ToStringExp.Operand = ExpressionOpCode->Operand;
+ DepExpressionOpCode->ToStringExp.Format = ExpressionOpCode->ExtraData.Format;
+ PopDependencyExpDes (&DepExpressionOpCode->ToStringExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_TO_UINT_OP:
+ DepExpressionOpCode->ToUintExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ToUintExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_TO_LOWER_OP:
+ DepExpressionOpCode->ToLowerExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ToLowerExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_TO_UPPER_OP:
+ DepExpressionOpCode->ToUpperExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ToUpperExp.SubExpression);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ //
+ // binary-op
+ //
+ case EFI_IFR_ADD_OP:
+ DepExpressionOpCode->AddExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->AddExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->AddExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_AND_OP:
+ DepExpressionOpCode->AndExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->AndExp.SubExpression1);
+ PopDependencyExpDes (&DepExpressionOpCode->AndExp.SubExpression2);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_BITWISE_AND_OP:
+ DepExpressionOpCode->BitwiseAndExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->BitwiseAndExp.SubExpression1);
+ PopDependencyExpDes (&DepExpressionOpCode->BitwiseAndExp.SubExpression2);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_BITWISE_OR_OP:
+ DepExpressionOpCode->BitwiseOrExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->BitwiseOrExp.SubExpression1);
+ PopDependencyExpDes (&DepExpressionOpCode->BitwiseOrExp.SubExpression2);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_CATENATE_OP:
+ DepExpressionOpCode->CatenateExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->CatenateExp.LeftStringExp);
+ PopDependencyExpDes (&DepExpressionOpCode->CatenateExp.RightStringExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_DIVIDE_OP:
+ DepExpressionOpCode->DivExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->DivExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->DivExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_EQUAL_OP:
+ DepExpressionOpCode->EqualExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->EqualExp.SubExpression1);
+ PopDependencyExpDes (&DepExpressionOpCode->EqualExp.SubExpression2);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_GREATER_EQUAL_OP:
+ DepExpressionOpCode->GreaterEqualExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->GreaterEqualExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->GreaterEqualExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_GREATER_THAN_OP:
+ DepExpressionOpCode->GreaterThanExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->GreaterThanExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->GreaterThanExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_LESS_EQUAL_OP:
+ DepExpressionOpCode->LessEqualExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->LessEqualExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->LessEqualExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_LESS_THAN_OP:
+ DepExpressionOpCode->LessThanExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->LessThanExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->LessThanExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_MATCH_OP:
+ DepExpressionOpCode->MatchExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->MatchExp.PatternExp);
+ PopDependencyExpDes (&DepExpressionOpCode->MatchExp.StringExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_MATCH2_OP:
+ DepExpressionOpCode->Match2Exp.Operand = ExpressionOpCode->Operand;
+ CopyMem (&DepExpressionOpCode->Match2Exp.SyntaxType, &ExpressionOpCode->ExtraData.Guid, sizeof (EFI_GUID));
+ PopDependencyExpDes (&DepExpressionOpCode->Match2Exp.PatternExp);
+ PopDependencyExpDes (&DepExpressionOpCode->Match2Exp.StringExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_MODULO_OP:
+ DepExpressionOpCode->ModExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ModExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->ModExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_MULTIPLY_OP:
+ DepExpressionOpCode->MultExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->MultExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->MultExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_NOT_EQUAL_OP:
+ DepExpressionOpCode->NotEqualExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->NotEqualExp.SubExpression1);
+ PopDependencyExpDes (&DepExpressionOpCode->NotEqualExp.SubExpression2);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_OR_OP:
+ DepExpressionOpCode->OrExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->OrExp.SubExpression1);
+ PopDependencyExpDes (&DepExpressionOpCode->OrExp.SubExpression2);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_SHIFT_LEFT_OP:
+ DepExpressionOpCode->ShiftLeftExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ShiftLeftExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->ShiftLeftExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_SHIFT_RIGHT_OP:
+ DepExpressionOpCode->ShiftRightExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ShiftRightExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->ShiftRightExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_SUBTRACT_OP:
+ DepExpressionOpCode->SubtractExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->SubtractExp.LeftHandExp);
+ PopDependencyExpDes (&DepExpressionOpCode->SubtractExp.RightHandExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ //
+ // ternary-op
+ //
+ case EFI_IFR_CONDITIONAL_OP:
+ DepExpressionOpCode->ConditionalExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->ConditionalExp.CondTrueValExp);
+ PopDependencyExpDes (&DepExpressionOpCode->ConditionalExp.CondFalseValExp);
+ PopDependencyExpDes (&DepExpressionOpCode->ConditionalExp.ConditionExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_FIND_OP:
+ DepExpressionOpCode->FindExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->FindExp.StringToSearchExp);
+ PopDependencyExpDes (&DepExpressionOpCode->FindExp.StringToCompWithExp);
+ PopDependencyExpDes (&DepExpressionOpCode->FindExp.IndexExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_MID_OP:
+ DepExpressionOpCode->MidExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->MidExp.StringOrBufferExp);
+ PopDependencyExpDes (&DepExpressionOpCode->MidExp.IndexExp);
+ PopDependencyExpDes (&DepExpressionOpCode->MidExp.LengthExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_TOKEN_OP:
+ DepExpressionOpCode->TokenExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->TokenExp.StringToSearchExp);
+ PopDependencyExpDes (&DepExpressionOpCode->TokenExp.DelimiterExp);
+ PopDependencyExpDes (&DepExpressionOpCode->TokenExp.IndexExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ case EFI_IFR_SPAN_OP:
+ DepExpressionOpCode->SpanExp.Operand = ExpressionOpCode->Operand;
+ PopDependencyExpDes (&DepExpressionOpCode->SpanExp.StringToSearchExp);
+ PopDependencyExpDes (&DepExpressionOpCode->SpanExp.CharsetExp);
+ PopDependencyExpDes (&DepExpressionOpCode->SpanExp.IndeExp);
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ //
+ // Map
+ //
+ case EFI_IFR_MAP_OP:
+ //
+ // Go through map expression list.
+ //
+ DepExpressionOpCode->MapExp.Operand = ExpressionOpCode->Operand;
+ MapPairpCount = 0;
+ SubExpressionLink = GetFirstNode(&ExpressionOpCode->MapExpressionList);
+ while (!IsNull (&ExpressionOpCode->MapExpressionList, SubExpressionLink)) {
+ MapPairpCount ++;
+ SubExpressionLink = GetNextNode (&ExpressionOpCode->MapExpressionList, SubExpressionLink);
+ if (IsNull (&ExpressionOpCode->MapExpressionList, SubExpressionLink)) {
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+ //
+ // Goto the first expression on next pair.
+ //
+ SubExpressionLink = GetNextNode (&ExpressionOpCode->MapExpressionList, SubExpressionLink);
+ }
+ DepExpressionOpCode->MapExp.ExpPair = (HII_DEPENDENCY_EXPRESSION_PAIR*) AllocateZeroPool (
+ MapPairpCount * sizeof (HII_DEPENDENCY_EXPRESSION_PAIR));
+ if (DepExpressionOpCode->MapExp.ExpPair == NULL) {
+
+ Status = EFI_OUT_OF_RESOURCES;
+ goto Done;
+ }
+
+ DepExpressionOpCode->MapExp.ExpPairNo = MapPairpCount;
+ MapPairpCount = 0;
+ PopDependencyExpDes (&DepExpressionOpCode->MapExp.SubExp);
+
+ //
+ // Go through map expression list.
+ //
+ SubExpressionLink = GetFirstNode(&ExpressionOpCode->MapExpressionList);
+ while (!IsNull (&ExpressionOpCode->MapExpressionList, SubExpressionLink)) {
+ SubExpression = HII_EXPRESSION_FROM_LINK (SubExpressionLink);
+ //
+ // Get the first expression description in this pair.
+ //
+ GetHiiExpressionDependency (SubExpression);
+ DepExpressionOpCode->MapExp.ExpPair[MapPairpCount].MatchExp= SubExpression->RootDepdencyExp;
+
+ //
+ // Get the second expression description in this pair.
+ //
+ SubExpressionLink = GetNextNode (&ExpressionOpCode->MapExpressionList, SubExpressionLink);
+ SubExpression = HII_EXPRESSION_FROM_LINK (SubExpressionLink);
+ GetHiiExpressionDependency (SubExpression);
+ DepExpressionOpCode->MapExp.ExpPair[MapPairpCount].ReturnExp= SubExpression->RootDepdencyExp;
+ //
+ // Goto the first expression on next pair.
+ //
+ SubExpressionLink = GetNextNode (&ExpressionOpCode->MapExpressionList, SubExpressionLink);
+ MapPairpCount++;
+ }
+ PushDependencyExpDes (&DepExpressionOpCode);
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ PopDependencyExpDes (&Expression->RootDepdencyExp);
+
+Done:
+ return Status;
+}
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiIfrParse.c b/RedfishPkg/Library/HiiUtilityLib/HiiIfrParse.c
new file mode 100644
index 00000000000..3546f92c1e7
--- /dev/null
+++ b/RedfishPkg/Library/HiiUtilityLib/HiiIfrParse.c
@@ -0,0 +1,2671 @@
+/** @file
+ Definitinos of RedfishPlatformConfigLib
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "HiiInternal.h"
+
+#define EFI_IFR_SPECIFICATION_VERSION (UINT16) (((EFI_SYSTEM_TABLE_REVISION >> 16) << 8) | (((EFI_SYSTEM_TABLE_REVISION & 0xFFFF) / 10) << 4) | ((EFI_SYSTEM_TABLE_REVISION & 0xFFFF) % 10))
+
+/**
+ Initialize Statement header members.
+
+ @param[in] OpCodeData Pointer of the raw OpCode data.
+ @param[in,out] FormSet Pointer of the current FormSet.
+ @param[in,out] Form Pointer of the current Form.
+
+ @return The Statement.
+
+**/
+HII_STATEMENT *
+CreateStatement (
+ IN UINT8 *OpCodeData,
+ IN OUT HII_FORMSET *FormSet,
+ IN OUT HII_FORM *Form
+ )
+{
+ HII_STATEMENT *Statement;
+ EFI_IFR_STATEMENT_HEADER *StatementHdr;
+ INTN ConditionalExprCount;
+
+ if (Form == NULL) {
+ //
+ // Only guid op may out side the form level.
+ //
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode != EFI_IFR_GUID_OP) {
+ return NULL;
+ }
+ }
+
+ Statement = (HII_STATEMENT *) AllocateZeroPool (sizeof (HII_STATEMENT));
+ if (Statement == NULL) {
+ return NULL;
+ }
+
+ InitializeListHead (&Statement->DefaultListHead);
+ InitializeListHead (&Statement->OptionListHead);
+ InitializeListHead (&Statement->InconsistentListHead);
+ InitializeListHead (&Statement->NoSubmitListHead);
+ InitializeListHead (&Statement->WarningListHead);
+
+ Statement->Signature = HII_STATEMENT_SIGNATURE;
+ Statement->Operand = ((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode;
+ Statement->OpCode = (EFI_IFR_OP_HEADER *) OpCodeData;
+ Statement->QuestionReferToBitField = FALSE;
+
+ StatementHdr = (EFI_IFR_STATEMENT_HEADER *) (OpCodeData + sizeof (EFI_IFR_OP_HEADER));
+ CopyMem (&Statement->Prompt, &StatementHdr->Prompt, sizeof (EFI_STRING_ID));
+ CopyMem (&Statement->Help, &StatementHdr->Help, sizeof (EFI_STRING_ID));
+
+ ConditionalExprCount = GetConditionalExpressionCount(ExpressStatement);
+ if (ConditionalExprCount > 0) {
+
+ //
+ // Form is inside of suppressif
+ //
+ Statement->ExpressionList = (HII_EXPRESSION_LIST *) AllocatePool(
+ (UINTN) (sizeof(HII_EXPRESSION_LIST) + ((ConditionalExprCount - 1) * sizeof (HII_EXPRESSION *))));
+ if (Statement->ExpressionList == NULL) {
+ return NULL;
+ }
+
+ Statement->ExpressionList->Count = (UINTN) ConditionalExprCount;
+ Statement->ExpressionList->Signature = HII_EXPRESSION_LIST_SIGNATURE;
+ CopyMem (Statement->ExpressionList->Expression,
+ GetConditionalExpressionList(ExpressStatement), (UINTN) (sizeof (HII_EXPRESSION *) * ConditionalExprCount));
+ }
+
+ //
+ // Insert this Statement into current Form
+ //
+ if (Form == NULL) {
+ InsertTailList (&FormSet->StatementListOSF, &Statement->Link);
+ } else {
+ InsertTailList (&Form->StatementListHead, &Statement->Link);
+ }
+ return Statement;
+}
+
+/**
+ Initialize Question's members.
+
+ @param[in] OpCodeData Pointer of the raw OpCode data.
+ @param[in,out] FormSet Pointer of the current FormSet.
+ @param[in,out] Form Pointer of the current Form.
+
+ @return The Question.
+
+**/
+HII_STATEMENT *
+CreateQuestion (
+ IN UINT8 *OpCodeData,
+ IN OUT HII_FORMSET *FormSet,
+ IN OUT HII_FORM *Form
+ )
+{
+ HII_STATEMENT *Statement;
+ EFI_IFR_QUESTION_HEADER *QuestionHdr;
+ LIST_ENTRY *Link;
+ HII_FORMSET_STORAGE *Storage;
+ HII_NAME_VALUE_NODE *NameValueNode;
+ BOOLEAN Find;
+
+ Statement = CreateStatement (OpCodeData, FormSet, Form);
+ if (Statement == NULL) {
+ return NULL;
+ }
+
+ QuestionHdr = (EFI_IFR_QUESTION_HEADER *) (OpCodeData + sizeof (EFI_IFR_OP_HEADER));
+ CopyMem (&Statement->QuestionId, &QuestionHdr->QuestionId, sizeof (EFI_QUESTION_ID));
+ CopyMem (&Statement->VarStoreId, &QuestionHdr->VarStoreId, sizeof (EFI_VARSTORE_ID));
+ CopyMem (&Statement->VarStoreInfo.VarOffset, &QuestionHdr->VarStoreInfo.VarOffset, sizeof (UINT16));
+
+ Statement->QuestionFlags = QuestionHdr->Flags;
+
+ if (Statement->VarStoreId == 0) {
+ //
+ // VarStoreId of zero indicates no variable storage
+ //
+ return Statement;
+ }
+
+ //
+ // Find Storage for this Question
+ //
+ Link = GetFirstNode (&FormSet->StorageListHead);
+ while (!IsNull (&FormSet->StorageListHead, Link)) {
+ Storage = HII_STORAGE_FROM_LINK (Link);
+
+ if (Statement->VarStoreId == Storage->VarStoreId) {
+
+ Statement->Storage = Storage;
+ break;
+ }
+
+ Link = GetNextNode (&FormSet->StorageListHead, Link);
+ }
+ if (Statement->Storage == NULL) {
+ return NULL;
+ }
+
+ //
+ // Initialilze varname for Name/Value or EFI Variable
+ //
+ if ((Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) ||
+ (Statement->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) {
+
+ Statement->VariableName = GetToken (Statement->VarStoreInfo.VarName, FormSet->HiiHandle);
+ if (Statement->VariableName == NULL) {
+ return NULL;
+ }
+
+ if (Statement->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
+
+ //
+ // Check whether old string node already exist.
+ //
+ Find = FALSE;
+ if (!IsListEmpty(&Statement->Storage->NameValueList)) {
+ Link = GetFirstNode (&Statement->Storage->NameValueList);
+ while (!IsNull (&Statement->Storage->NameValueList, Link)) {
+ NameValueNode = HII_NAME_VALUE_NODE_FROM_LINK (Link);
+
+ if (StrCmp (Statement->VariableName, NameValueNode->Name) == 0) {
+ Find = TRUE;
+ break;
+ }
+
+ Link = GetNextNode (&Statement->Storage->NameValueList, Link);
+ }
+ }
+
+
+ if (!Find) {
+ //
+ // Insert to Name/Value varstore list
+ //
+ NameValueNode = AllocateZeroPool (sizeof (HII_NAME_VALUE_NODE));
+ if (NameValueNode == NULL) {
+ return NULL;
+ }
+
+ NameValueNode->Signature = HII_NAME_VALUE_NODE_SIGNATURE;
+ NameValueNode->Name = AllocateCopyPool (StrSize (Statement->VariableName), Statement->VariableName);
+ if (NameValueNode->Name == NULL) {
+
+ FreePool (NameValueNode);
+ return NULL;
+ }
+
+ NameValueNode->Value = AllocateZeroPool (0x10);
+ if (NameValueNode->Value == NULL) {
+
+ FreePool (NameValueNode->Name);
+ FreePool (NameValueNode);
+ return NULL;
+ }
+
+
+ InsertTailList (&Statement->Storage->NameValueList, &NameValueNode->Link);
+ }
+ }
+ }
+
+ return Statement;
+}
+
+
+/**
+ Allocate a HII_EXPRESSION node.
+
+ @param[in,out] Form The Form associated with this Expression
+ @param[in] OpCode The binary opcode data.
+
+ @return Pointer to a HII_EXPRESSION data structure.
+
+**/
+HII_EXPRESSION *
+CreateExpression (
+ IN OUT HII_FORM *Form,
+ IN UINT8 *OpCode
+ )
+{
+ HII_EXPRESSION *Expression;
+
+ Expression = AllocateZeroPool (sizeof (HII_EXPRESSION));
+ if (Expression == NULL) {
+ return NULL;
+ }
+
+ Expression->Signature = HII_EXPRESSION_SIGNATURE;
+ InitializeListHead (&Expression->OpCodeListHead);
+ Expression->OpCode = (EFI_IFR_OP_HEADER *) OpCode;
+
+ return Expression;
+}
+
+/**
+ Create ConfigHdr string for a storage.
+
+ @param[in] FormSet Pointer of the current FormSet
+ @param[in,out] Storage Pointer of the storage
+
+ @retval EFI_SUCCESS Initialize ConfigHdr success
+
+**/
+EFI_STATUS
+InitializeConfigHdr (
+ IN HII_FORMSET *FormSet,
+ IN OUT HII_FORMSET_STORAGE *Storage
+ )
+{
+ CHAR16 *Name;
+
+ if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
+ Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
+
+ Name = Storage->Name;
+ } else {
+ Name = NULL;
+ }
+
+ Storage->ConfigHdr = HiiConstructConfigHdr (
+ &FormSet->Guid,
+ Name,
+ FormSet->DriverHandle
+ );
+
+ if (Storage->ConfigHdr == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Convert Ascii string to Unicode.
+
+ This is an internal function.
+
+ @param[in] AsciiString The Ascii string to be converted.
+ @param[out] UnicodeString The Unicode string retrieved.
+
+**/
+VOID
+AsciiToUnicode (
+ IN CHAR8 *AsciiString,
+ OUT CHAR16 *UnicodeString
+ )
+{
+ UINT8 Index;
+
+ Index = 0;
+ while (AsciiString[Index] != 0) {
+ UnicodeString[Index] = (CHAR16)AsciiString[Index];
+ Index++;
+ }
+
+ UnicodeString[Index] = L'\0';
+}
+
+/**
+ Allocate a HII_FORMSET_STORAGE data structure and insert to FormSet Storage List.
+
+ @param[in] FormSet Pointer of the current FormSet
+ @param[in] StorageType Storage type.
+ @param[in] OpCodeData Binary data for this opcode.
+
+ @return Pointer to a HII_FORMSET_STORAGE data structure.
+
+**/
+HII_FORMSET_STORAGE *
+CreateStorage (
+ IN HII_FORMSET *FormSet,
+ IN UINT8 StorageType,
+ IN UINT8 *OpCodeData
+ )
+{
+ HII_FORMSET_STORAGE *Storage;
+ CHAR8 *AsciiStorageName;
+
+ AsciiStorageName = NULL;
+
+ Storage = AllocateZeroPool (sizeof (HII_FORMSET_STORAGE));
+ if (Storage == NULL) {
+ return NULL;
+ }
+
+ Storage->Signature = HII_STORAGE_SIGNATURE;
+ Storage->Type = StorageType;
+
+ switch (StorageType) {
+ case EFI_HII_VARSTORE_BUFFER:
+
+ CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE *) OpCodeData)->Guid, sizeof (EFI_GUID));
+ CopyMem (&Storage->Size, &((EFI_IFR_VARSTORE *) OpCodeData)->Size, sizeof (UINT16));
+
+ Storage->Buffer = AllocateZeroPool (Storage->Size);
+ if (Storage->Buffer == NULL) {
+
+ FreePool (Storage);
+ return NULL;
+ }
+
+ AsciiStorageName = (CHAR8 *) ((EFI_IFR_VARSTORE *) OpCodeData)->Name;
+ Storage->Name = AllocatePool (sizeof (CHAR16) * (AsciiStrLen (AsciiStorageName) + 1));
+ if (Storage->Name == NULL) {
+
+ FreePool (Storage);
+ return NULL;
+ }
+
+ AsciiToUnicode (AsciiStorageName, Storage->Name);
+
+ break;
+
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+ CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Guid, sizeof (EFI_GUID));
+ CopyMem (&Storage->Attributes, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Attributes, sizeof (UINT32));
+ CopyMem (&Storage->Size, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Size, sizeof (UINT16));
+
+ if (StorageType == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
+ Storage->Buffer = AllocateZeroPool (Storage->Size);
+ if (Storage->Buffer == NULL) {
+
+ FreePool (Storage);
+ return NULL;
+ }
+ }
+
+ AsciiStorageName = (CHAR8 *) ((EFI_IFR_VARSTORE_EFI *) OpCodeData)->Name;
+ Storage->Name = AllocatePool (sizeof (CHAR16) * (AsciiStrLen (AsciiStorageName) + 1));
+ if (Storage->Name == NULL) {
+
+ FreePool (Storage);
+ return NULL;
+ }
+ AsciiToUnicode (AsciiStorageName, Storage->Name);
+
+ break;
+
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ CopyMem (&Storage->Guid, &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->Guid, sizeof (EFI_GUID));
+ InitializeListHead (&Storage->NameValueList);
+
+ break;
+
+ default:
+ break;
+ }
+
+ InitializeConfigHdr (FormSet, Storage);
+ InsertTailList (&FormSet->StorageListHead, &Storage->Link);
+
+ return Storage;
+}
+
+/**
+ Get formset storage based on the input varstoreid info.
+
+ @param[in] FormSet Pointer of the current FormSet.
+ @param[in] VarStoreId Varstore ID info.
+
+ @return Pointer to a HII_FORMSET_STORAGE data structure.
+
+**/
+HII_FORMSET_STORAGE *
+GetFstStgFromVarId (
+ IN HII_FORMSET *FormSet,
+ IN EFI_VARSTORE_ID VarStoreId
+ )
+{
+ HII_FORMSET_STORAGE *Storage;
+ LIST_ENTRY *Link;
+ BOOLEAN Found;
+
+ Found = FALSE;
+ Storage = NULL;
+ //
+ // Find Formset Storage for this Question
+ //
+ Link = GetFirstNode (&FormSet->StorageListHead);
+ while (!IsNull (&FormSet->StorageListHead, Link)) {
+ Storage = HII_STORAGE_FROM_LINK (Link);
+
+ if (Storage->VarStoreId == VarStoreId) {
+ Found = TRUE;
+ break;
+ }
+
+ Link = GetNextNode (&FormSet->StorageListHead, Link);
+ }
+
+ return Found ? Storage : NULL;
+}
+
+/**
+ Initialize Request Element of a Question. <RequestElement> ::= '&'<BlockName> | '&'<Label>
+
+ @param[in,out] FormSet Pointer of the current FormSet.
+ @param[in,out] Question The Question to be initialized.
+ @param[in,out] Form Pointer of the current form.
+
+ @retval EFI_SUCCESS Function success.
+ @retval EFI_INVALID_PARAMETER No storage associated with the Question.
+
+**/
+EFI_STATUS
+InitializeRequestElement (
+ IN OUT HII_FORMSET *FormSet,
+ IN OUT HII_STATEMENT *Question,
+ IN OUT HII_FORM *Form
+ )
+{
+ HII_FORMSET_STORAGE *Storage;
+ HII_FORM_CONFIG_REQUEST *ConfigInfo;
+ UINTN StrLen;
+ UINTN StringSize;
+ CHAR16 *NewStr;
+ CHAR16 RequestElement[30];
+ LIST_ENTRY *Link;
+ BOOLEAN Find;
+ UINTN MaxLen;
+
+ Storage = Question->Storage;
+ if (Storage == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
+ //
+ // <ConfigRequest> is unnecessary for EFI variable storage,
+ // GetVariable()/SetVariable() will be used to retrieve/save values
+ //
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Prepare <RequestElement>
+ //
+ if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
+ Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
+ StrLen = UnicodeSPrint (
+ RequestElement,
+ 30 * sizeof (CHAR16),
+ L"&OFFSET=%04x&WIDTH=%04x",
+ Question->VarStoreInfo.VarOffset,
+ Question->StorageWidth
+ );
+ HiiToLower(RequestElement);
+ Question->BlockName = AllocateCopyPool ((StrLen + 1) * sizeof (CHAR16), RequestElement);
+ if (Question->BlockName == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ } else {
+ StrLen = UnicodeSPrint (RequestElement, 30 * sizeof (CHAR16), L"&%s", Question->VariableName);
+ }
+
+ if ((Question->Operand == EFI_IFR_PASSWORD_OP) &&
+ ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) == EFI_IFR_FLAG_CALLBACK)) {
+
+ //
+ // Password with CALLBACK flag is stored in encoded format,
+ // so don't need to append it to <ConfigRequest>
+ //
+ return EFI_SUCCESS;
+ }
+
+ StringSize = (Storage->ConfigRequest != NULL) ? StrSize (Storage->ConfigRequest) : sizeof (CHAR16);
+ MaxLen = StringSize / sizeof (CHAR16) + Storage->SpareStrLen;
+
+ //
+ // Append <RequestElement> to <ConfigRequest>
+ //
+ if (StrLen > Storage->SpareStrLen) {
+
+ //
+ // Old String buffer is not sufficient for RequestElement, allocate a new one
+ //
+ MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL;
+ NewStr = AllocatePool (MaxLen * sizeof (CHAR16));
+ if (NewStr == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (Storage->ConfigRequest != NULL) {
+ CopyMem (NewStr, Storage->ConfigRequest, StringSize);
+ FreePool (Storage->ConfigRequest);
+ } else {
+ NewStr[0] = L'\0';
+ }
+ Storage->ConfigRequest = NewStr;
+ Storage->SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
+ }
+
+ StrCatS (Storage->ConfigRequest, MaxLen, RequestElement);
+ Storage->ElementCount++;
+ Storage->SpareStrLen -= StrLen;
+
+ //
+ // Update the Config Request info saved in the form.
+ //
+ ConfigInfo = NULL;
+ Find = FALSE;
+ Link = GetFirstNode (&Form->ConfigRequestHead);
+ while (!IsNull (&Form->ConfigRequestHead, Link)) {
+
+ ConfigInfo = HII_FORM_CONFIG_REQUEST_FROM_LINK (Link);
+ if (ConfigInfo != NULL && ConfigInfo->Storage == Storage) {
+ Find = TRUE;
+ break;
+ }
+
+ Link = GetNextNode (&Form->ConfigRequestHead, Link);
+ }
+
+ if (!Find) {
+ ConfigInfo = AllocateZeroPool(sizeof (HII_FORM_CONFIG_REQUEST));
+ if (ConfigInfo == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ ConfigInfo->Signature = HII_FORM_CONFIG_REQUEST_SIGNATURE;
+ ConfigInfo->ConfigRequest = AllocateCopyPool (StrSize (Storage->ConfigHdr), Storage->ConfigHdr);
+ if (ConfigInfo->ConfigRequest == NULL) {
+
+ FreePool (ConfigInfo);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ ConfigInfo->SpareStrLen = 0;
+ ConfigInfo->Storage = Storage;
+ InsertTailList(&Form->ConfigRequestHead, &ConfigInfo->Link);
+ }
+ StringSize = (ConfigInfo->ConfigRequest != NULL) ? StrSize (ConfigInfo->ConfigRequest) : sizeof (CHAR16);
+ MaxLen = StringSize / sizeof (CHAR16) + ConfigInfo->SpareStrLen;
+
+ //
+ // Append <RequestElement> to <ConfigRequest>
+ //
+ if (StrLen > ConfigInfo->SpareStrLen) {
+
+ //
+ // Old String buffer is not sufficient for RequestElement, allocate a new one
+ //
+ MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL;
+ NewStr = AllocatePool (MaxLen * sizeof (CHAR16));
+ if (NewStr == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (ConfigInfo->ConfigRequest != NULL) {
+
+ CopyMem (NewStr, ConfigInfo->ConfigRequest, StringSize);
+ FreePool (ConfigInfo->ConfigRequest);
+ } else {
+ NewStr[0] = L'\0';
+ }
+ ConfigInfo->ConfigRequest = NewStr;
+ ConfigInfo->SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
+ }
+
+ StrCatS (ConfigInfo->ConfigRequest, MaxLen, RequestElement);
+ ConfigInfo->ElementCount++;
+ ConfigInfo->SpareStrLen -= StrLen;
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Free resources of a Expression.
+
+ @param[in] FormSet Pointer of the Expression
+
+**/
+VOID
+DestroyExpression (
+ IN HII_EXPRESSION *Expression
+ )
+{
+ LIST_ENTRY *Link;
+ HII_EXPRESSION_OPCODE *OpCode;
+ LIST_ENTRY *SubExpressionLink;
+ HII_EXPRESSION *SubExpression;
+
+ while (!IsListEmpty (&Expression->OpCodeListHead)) {
+ Link = GetFirstNode (&Expression->OpCodeListHead);
+ OpCode = HII_EXPRESSION_OPCODE_FROM_LINK (Link);
+
+ RemoveEntryList (&OpCode->Link);
+ if (OpCode->Operand == EFI_IFR_EQ_ID_VAL_LIST_OP && OpCode->ExtraData.EqIdListData.ValueList != NULL) {
+ FreePool (OpCode->ExtraData.EqIdListData.ValueList);
+ }
+ if ((OpCode->Operand == EFI_IFR_GET_OP || OpCode->Operand == EFI_IFR_SET_OP) &&
+ OpCode->ExtraData.GetSetData.ValueName != NULL) {
+ FreePool (OpCode->ExtraData.GetSetData.ValueName);
+ }
+
+ if (OpCode->MapExpressionList.ForwardLink != NULL) {
+ while (!IsListEmpty (&OpCode->MapExpressionList)) {
+
+ SubExpressionLink = GetFirstNode(&OpCode->MapExpressionList);
+ SubExpression = HII_EXPRESSION_FROM_LINK (SubExpressionLink);
+ RemoveEntryList(&SubExpression->Link);
+ DestroyExpression (SubExpression);
+ }
+ }
+ }
+
+ //
+ // Free this Expression
+ //
+ FreePool (Expression);
+}
+
+/**
+ Delete a string from HII Package List.
+
+ @param[in] StringId Id of the string in HII database.
+ @param[in] HiiHandle The HII package list handle.
+
+ @retval EFI_SUCCESS The string was deleted successfully.
+
+**/
+EFI_STATUS
+DeleteString (
+ IN EFI_STRING_ID StringId,
+ IN EFI_HII_HANDLE HiiHandle
+ )
+{
+ CHAR16 NullChar;
+
+ NullChar = CHAR_NULL;
+ HiiSetString (HiiHandle, StringId, &NullChar, NULL);
+ return EFI_SUCCESS;
+}
+
+/**
+ Free resources of a Statement.
+
+ @param[in] FormSet Pointer of the FormSet
+ @param[in,out] Statement Pointer of the Statement
+
+**/
+VOID
+DestroyStatement (
+ IN HII_FORMSET *FormSet,
+ IN OUT HII_STATEMENT *Statement
+ )
+{
+ LIST_ENTRY *Link;
+ HII_QUESTION_DEFAULT *Default;
+ HII_QUESTION_OPTION *Option;
+ HII_EXPRESSION *Expression;
+
+ //
+ // Free Default value List
+ //
+ while (!IsListEmpty (&Statement->DefaultListHead)) {
+ Link = GetFirstNode (&Statement->DefaultListHead);
+ Default = HII_QUESTION_DEFAULT_FROM_LINK (Link);
+ RemoveEntryList (&Default->Link);
+
+ if (Default->Value.Buffer != NULL) {
+ FreePool (Default->Value.Buffer);
+ }
+ FreePool (Default);
+ }
+
+ //
+ // Free Options List
+ //
+ while (!IsListEmpty (&Statement->OptionListHead)) {
+ Link = GetFirstNode (&Statement->OptionListHead);
+ Option = HII_QUESTION_OPTION_FROM_LINK (Link);
+
+ if (Option->SuppressExpression != NULL) {
+ FreePool (Option->SuppressExpression);
+ }
+ RemoveEntryList (&Option->Link);
+
+ FreePool (Option);
+ }
+
+ //
+ // Free Inconsistent List
+ //
+ while (!IsListEmpty (&Statement->InconsistentListHead)) {
+ Link = GetFirstNode (&Statement->InconsistentListHead);
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+ RemoveEntryList (&Expression->Link);
+
+ DestroyExpression (Expression);
+ }
+
+ //
+ // Free NoSubmit List
+ //
+ while (!IsListEmpty (&Statement->NoSubmitListHead)) {
+ Link = GetFirstNode (&Statement->NoSubmitListHead);
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+ RemoveEntryList (&Expression->Link);
+
+ DestroyExpression (Expression);
+ }
+
+ //
+ // Free WarningIf List
+ //
+ while (!IsListEmpty (&Statement->WarningListHead)) {
+ Link = GetFirstNode (&Statement->WarningListHead);
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+ RemoveEntryList (&Expression->Link);
+
+ DestroyExpression (Expression);
+ }
+
+ if (Statement->ExpressionList != NULL) {
+ FreePool (Statement->ExpressionList);
+ }
+
+ if (Statement->VariableName != NULL) {
+ FreePool (Statement->VariableName);
+ }
+ if (Statement->BlockName != NULL) {
+ FreePool (Statement->BlockName);
+ }
+ if (Statement->Value.Buffer!= NULL) {
+ FreePool (Statement->Value.Buffer);
+ }
+ if (Statement->Operand == EFI_IFR_STRING_OP || Statement->Operand == EFI_IFR_PASSWORD_OP) {
+ DeleteString(Statement->Value.Value.string, FormSet->HiiHandle);
+ }
+}
+
+/**
+ Free resources of a Form.
+
+ @param[in] FormSet Pointer of the FormSet
+ @param[in,out] Form Pointer of the Form.
+
+**/
+VOID
+DestroyForm (
+ IN HII_FORMSET *FormSet,
+ IN OUT HII_FORM *Form
+ )
+{
+ LIST_ENTRY *Link;
+ HII_EXPRESSION *Expression;
+ HII_STATEMENT *Statement;
+ HII_FORM_CONFIG_REQUEST *ConfigInfo;
+
+ //
+ // Free Rule Expressions
+ //
+ while (!IsListEmpty (&Form->RuleListHead)) {
+
+ Link = GetFirstNode (&Form->RuleListHead);
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+ RemoveEntryList (&Expression->Link);
+ DestroyExpression (Expression);
+ }
+
+ //
+ // Free Statements/Questions
+ //
+ while (!IsListEmpty (&Form->StatementListHead)) {
+
+ Link = GetFirstNode (&Form->StatementListHead);
+ Statement = HII_STATEMENT_FROM_LINK (Link);
+ RemoveEntryList (&Statement->Link);
+ DestroyStatement (FormSet, Statement);
+ }
+
+ //
+ // Free ConfigRequest string.
+ //
+ while (!IsListEmpty (&Form->ConfigRequestHead)) {
+ Link = GetFirstNode (&Form->ConfigRequestHead);
+ ConfigInfo = HII_FORM_CONFIG_REQUEST_FROM_LINK (Link);
+
+ RemoveEntryList (&ConfigInfo->Link);
+
+ FreePool (ConfigInfo->ConfigRequest);
+ FreePool (ConfigInfo);
+ }
+
+ if (Form->SuppressExpression != NULL) {
+ FreePool (Form->SuppressExpression);
+ }
+
+ //
+ // Free this Form
+ //
+ FreePool (Form);
+}
+
+/**
+ Tell whether this Operand is an Expression OpCode or not
+
+ @param[in] Operand Operand of an IFR OpCode.
+
+ @retval TRUE This is an Expression OpCode.
+ @retval FALSE Not an Expression OpCode.
+
+**/
+BOOLEAN
+IsExpressionOpCode (
+ IN UINT8 Operand
+ )
+{
+ if (((Operand >= EFI_IFR_EQ_ID_VAL_OP) && (Operand <= EFI_IFR_NOT_OP)) ||
+ ((Operand >= EFI_IFR_MATCH_OP) && (Operand <= EFI_IFR_SET_OP)) ||
+ ((Operand >= EFI_IFR_EQUAL_OP) && (Operand <= EFI_IFR_SPAN_OP)) ||
+ (Operand == EFI_IFR_CATENATE_OP) ||
+ (Operand == EFI_IFR_TO_LOWER_OP) ||
+ (Operand == EFI_IFR_TO_UPPER_OP) ||
+ (Operand == EFI_IFR_MAP_OP) ||
+ (Operand == EFI_IFR_VERSION_OP) ||
+ (Operand == EFI_IFR_SECURITY_OP) ||
+ (Operand == EFI_IFR_MATCH2_OP)) {
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+/**
+ Tell whether this Operand is an Statement OpCode.
+
+ @param[in] Operand Operand of an IFR OpCode.
+
+ @retval TRUE This is an Statement OpCode.
+ @retval FALSE Not an Statement OpCode.
+
+**/
+BOOLEAN
+IsStatementOpCode (
+ IN UINT8 Operand
+ )
+{
+ if ((Operand == EFI_IFR_SUBTITLE_OP) ||
+ (Operand == EFI_IFR_TEXT_OP) ||
+ (Operand == EFI_IFR_RESET_BUTTON_OP) ||
+ (Operand == EFI_IFR_REF_OP) ||
+ (Operand == EFI_IFR_ACTION_OP) ||
+ (Operand == EFI_IFR_NUMERIC_OP) ||
+ (Operand == EFI_IFR_ORDERED_LIST_OP) ||
+ (Operand == EFI_IFR_CHECKBOX_OP) ||
+ (Operand == EFI_IFR_STRING_OP) ||
+ (Operand == EFI_IFR_PASSWORD_OP) ||
+ (Operand == EFI_IFR_DATE_OP) ||
+ (Operand == EFI_IFR_TIME_OP) ||
+ (Operand == EFI_IFR_GUID_OP) ||
+ (Operand == EFI_IFR_ONE_OF_OP)) {
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+/**
+ Tell whether this Operand is an known OpCode.
+
+ @param[in] Operand Operand of an IFR OpCode.
+
+ @retval TRUE This is an Statement OpCode.
+ @retval FALSE Not an Statement OpCode.
+
+**/
+BOOLEAN
+IsUnKnownOpCode (
+ IN UINT8 Operand
+ )
+{
+ return Operand > EFI_IFR_MATCH2_OP ? TRUE : FALSE;
+}
+
+/**
+ Calculate number of Statemens(Questions) and Expression OpCodes.
+
+ @param[in] FormSet The FormSet to be counted.
+ @param[in,out] NumberOfStatement Number of Statemens(Questions)
+ @param[in,out] NumberOfExpression Number of Expression OpCodes
+
+**/
+VOID
+CountOpCodes (
+ IN HII_FORMSET *FormSet,
+ IN OUT UINT16 *NumberOfStatement,
+ IN OUT UINT16 *NumberOfExpression
+ )
+{
+ UINT16 StatementCount;
+ UINT16 ExpressionCount;
+ UINT8 *OpCodeData;
+ UINTN Offset;
+ UINTN OpCodeLen;
+
+ Offset = 0;
+ StatementCount = 0;
+ ExpressionCount = 0;
+
+ while (Offset < FormSet->IfrBinaryLength) {
+ OpCodeData = FormSet->IfrBinaryData + Offset;
+ OpCodeLen = ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
+ Offset += OpCodeLen;
+
+ if (IsExpressionOpCode (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode)) {
+ ExpressionCount++;
+ } else {
+ StatementCount++;
+ }
+ }
+
+ *NumberOfStatement = StatementCount;
+ *NumberOfExpression = ExpressionCount;
+}
+
+
+/**
+ Parse opcodes in the formset IFR binary.
+
+ @param[in] FormSet Pointer of the FormSet data structure.
+
+ @retval EFI_SUCCESS Opcode parse success.
+ @retval Other Opcode parse fail.
+
+**/
+EFI_STATUS
+ParseOpCodes (
+ IN HII_FORMSET *FormSet
+ )
+{
+ EFI_STATUS Status;
+ HII_FORM *CurrentForm;
+ HII_STATEMENT *CurrentStatement;
+ HII_STATEMENT *ParentStatement;
+ HII_EXPRESSION_OPCODE *ExpressionOpCode;
+ HII_EXPRESSION *CurrentExpression;
+ UINT8 Operand;
+ UINT8 Scope;
+ UINTN OpCodeOffset;
+ UINTN OpCodeLength;
+ UINT8 *OpCodeData;
+ UINT8 ScopeOpCode;
+ HII_FORMSET_DEFAULTSTORE *DefaultStore;
+ HII_QUESTION_DEFAULT *CurrentDefault;
+ HII_QUESTION_OPTION *CurrentOption;
+ UINT8 Width;
+ UINT16 NumberOfStatement;
+ UINT16 NumberOfExpression;
+ EFI_IMAGE_ID *ImageId;
+ BOOLEAN SuppressForQuestion;
+ BOOLEAN SuppressForOption;
+ UINT16 DepthOfDisable;
+ BOOLEAN OpCodeDisabled;
+ BOOLEAN SingleOpCodeExpression;
+ BOOLEAN InScopeDefault;
+ EFI_HII_VALUE *ExpressionValue;
+ HII_STATEMENT_VALUE *StatementValue;
+ EFI_IFR_FORM_MAP_METHOD *MapMethod;
+ UINT8 MapScopeDepth;
+ LIST_ENTRY *Link;
+ HII_FORMSET_STORAGE *Storage;
+ LIST_ENTRY *MapExpressionList;
+ EFI_VARSTORE_ID TempVarstoreId;
+ BOOLEAN InScopeDisable;
+ INTN ConditionalExprCount;
+ BOOLEAN InUnknownScope;
+ UINT8 UnknownDepth;
+ HII_FORMSET_DEFAULTSTORE *PreDefaultStore;
+ LIST_ENTRY *DefaultLink;
+ BOOLEAN HaveInserted;
+ UINT16 TotalBits;
+ BOOLEAN QuestionReferBitField;
+
+ SuppressForQuestion = FALSE;
+ SuppressForOption = FALSE;
+ InScopeDisable = FALSE;
+ DepthOfDisable = 0;
+ OpCodeDisabled = FALSE;
+ SingleOpCodeExpression = FALSE;
+ InScopeDefault = FALSE;
+ CurrentExpression = NULL;
+ CurrentDefault = NULL;
+ CurrentOption = NULL;
+ ImageId = NULL;
+ MapMethod = NULL;
+ MapScopeDepth = 0;
+ Link = NULL;
+ MapExpressionList = NULL;
+ TempVarstoreId = 0;
+ ConditionalExprCount = 0;
+ InUnknownScope = FALSE;
+ UnknownDepth = 0;
+ QuestionReferBitField = FALSE;
+
+ //
+ // Get the number of Statements and Expressions
+ //
+ CountOpCodes (FormSet, &NumberOfStatement, &NumberOfExpression);
+
+ InitializeListHead (&FormSet->StatementListOSF);
+ InitializeListHead (&FormSet->StorageListHead);
+ InitializeListHead (&FormSet->DefaultStoreListHead);
+ InitializeListHead (&FormSet->FormListHead);
+ ResetCurrentExpressionStack ();
+ ResetMapExpressionListStack ();
+
+ CurrentForm = NULL;
+ CurrentStatement = NULL;
+ ParentStatement = NULL;
+
+ ResetScopeStack ();
+
+ OpCodeOffset = 0;
+ while (OpCodeOffset < FormSet->IfrBinaryLength) {
+ OpCodeData = FormSet->IfrBinaryData + OpCodeOffset;
+
+ OpCodeLength = ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
+ OpCodeOffset += OpCodeLength;
+ Operand = ((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode;
+ Scope = ((EFI_IFR_OP_HEADER *) OpCodeData)->Scope;
+ if (InUnknownScope) {
+ if (Operand == EFI_IFR_END_OP) {
+ UnknownDepth --;
+
+ if (UnknownDepth == 0) {
+ InUnknownScope = FALSE;
+ }
+ } else {
+ if (Scope != 0) {
+ UnknownDepth ++;
+ }
+ }
+
+ continue;
+ }
+
+ if (IsUnKnownOpCode(Operand)) {
+ if (Scope != 0) {
+ InUnknownScope = TRUE;
+ UnknownDepth ++;
+ }
+
+ continue;
+ }
+
+ //
+ // If scope bit set, push onto scope stack
+ //
+ if (Scope != 0) {
+ PushScope (Operand);
+ }
+
+ if (OpCodeDisabled) {
+ //
+ // DisableIf Expression is evaluated to be TRUE, try to find its end.
+ // Here only cares the EFI_IFR_DISABLE_IF and EFI_IFR_END
+ //
+ if (Operand == EFI_IFR_DISABLE_IF_OP) {
+ DepthOfDisable++;
+ } else if (Operand == EFI_IFR_END_OP) {
+ Status = PopScope (&ScopeOpCode);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (ScopeOpCode == EFI_IFR_DISABLE_IF_OP) {
+ if (DepthOfDisable == 0) {
+ InScopeDisable = FALSE;
+ OpCodeDisabled = FALSE;
+ } else {
+ DepthOfDisable--;
+ }
+ }
+ }
+ continue;
+ }
+
+ if (IsExpressionOpCode (Operand)) {
+ ExpressionOpCode = (HII_EXPRESSION_OPCODE *) AllocateZeroPool (sizeof (HII_EXPRESSION_OPCODE));
+ if (ExpressionOpCode == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ ExpressionOpCode->Signature = HII_EXPRESSION_OPCODE_SIGNATURE;
+ ExpressionOpCode->Operand = Operand;
+
+ switch (Operand) {
+ case EFI_IFR_EQ_ID_VAL_OP:
+
+ CopyMem (&ExpressionOpCode->ExtraData.EqIdValData.QuestionId, &((EFI_IFR_EQ_ID_VAL *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.EqIdValData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_16;
+ CopyMem (&ExpressionValue->Value.u16, &((EFI_IFR_EQ_ID_VAL *) OpCodeData)->Value, sizeof (UINT16));
+ break;
+
+ case EFI_IFR_EQ_ID_ID_OP:
+ CopyMem (&ExpressionOpCode->ExtraData.EqIdIdData.QuestionId1, &((EFI_IFR_EQ_ID_ID *) OpCodeData)->QuestionId1, sizeof (EFI_QUESTION_ID));
+ CopyMem (&ExpressionOpCode->ExtraData.EqIdIdData.QuestionId2, &((EFI_IFR_EQ_ID_ID *) OpCodeData)->QuestionId2, sizeof (EFI_QUESTION_ID));
+ break;
+
+ case EFI_IFR_EQ_ID_VAL_LIST_OP:
+
+ CopyMem (&ExpressionOpCode->ExtraData.EqIdListData.QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
+ CopyMem (&ExpressionOpCode->ExtraData.EqIdListData.ListLength, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->ListLength, sizeof (UINT16));
+ ExpressionOpCode->ExtraData.EqIdListData.ValueList = AllocateCopyPool (
+ ExpressionOpCode->ExtraData.EqIdListData.ListLength * sizeof (UINT16), &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->ValueList);
+ if (ExpressionOpCode->ExtraData.EqIdListData.ValueList == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ break;
+
+ case EFI_IFR_TO_STRING_OP:
+ case EFI_IFR_FIND_OP:
+
+ ExpressionOpCode->ExtraData.Format = (( EFI_IFR_TO_STRING *) OpCodeData)->Format;
+ break;
+
+ case EFI_IFR_STRING_REF1_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_STRING;
+ CopyMem (&ExpressionValue->Value.string, &(( EFI_IFR_STRING_REF1 *) OpCodeData)->StringId, sizeof (EFI_STRING_ID));
+ break;
+
+ case EFI_IFR_RULE_REF_OP:
+
+ ExpressionOpCode->ExtraData.RuleId = (( EFI_IFR_RULE_REF *) OpCodeData)->RuleId;
+ break;
+
+ case EFI_IFR_SPAN_OP:
+
+ ExpressionOpCode->ExtraData.Flags = (( EFI_IFR_SPAN *) OpCodeData)->Flags;
+ break;
+
+ case EFI_IFR_THIS_OP:
+
+ if (ParentStatement != NULL) {
+ ExpressionOpCode->ExtraData.QuestionRef1Data.QuestionId = ParentStatement->QuestionId;
+ }
+
+ break;
+
+ case EFI_IFR_SECURITY_OP:
+
+ CopyMem (&ExpressionOpCode->ExtraData.Guid, &((EFI_IFR_SECURITY *) OpCodeData)->Permissions, sizeof (EFI_GUID));
+ break;
+
+ case EFI_IFR_MATCH2_OP:
+
+ CopyMem (&ExpressionOpCode->ExtraData.Guid, &((EFI_IFR_MATCH2 *) OpCodeData)->SyntaxType, sizeof (EFI_GUID));
+ break;
+
+ case EFI_IFR_GET_OP:
+ case EFI_IFR_SET_OP:
+
+ CopyMem (&TempVarstoreId, &((EFI_IFR_GET *) OpCodeData)->VarStoreId, sizeof (TempVarstoreId));
+ if (TempVarstoreId != 0) {
+ if (FormSet->StorageListHead.ForwardLink != NULL) {
+ Link = GetFirstNode (&FormSet->StorageListHead);
+ while (!IsNull (&FormSet->StorageListHead, Link)) {
+ Storage = HII_STORAGE_FROM_LINK (Link);
+ if (Storage->VarStoreId == ((EFI_IFR_GET *) OpCodeData)->VarStoreId) {
+ ExpressionOpCode->ExtraData.GetSetData.VarStorage = Storage;
+ break;
+ }
+ Link = GetNextNode (&FormSet->StorageListHead, Link);
+ }
+ }
+ if (ExpressionOpCode->ExtraData.GetSetData.VarStorage == NULL) {
+ //
+ // VarStorage is not found.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ ExpressionOpCode->ExtraData.GetSetData.ValueType = ((EFI_IFR_GET *) OpCodeData)->VarStoreType;
+ switch (ExpressionOpCode->ExtraData.GetSetData.ValueType) {
+ case EFI_IFR_TYPE_BOOLEAN:
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ ExpressionOpCode->ExtraData.GetSetData.ValueWidth = 1;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ case EFI_IFR_TYPE_STRING:
+ ExpressionOpCode->ExtraData.GetSetData.ValueWidth = 2;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ ExpressionOpCode->ExtraData.GetSetData.ValueWidth = 4;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_64:
+ ExpressionOpCode->ExtraData.GetSetData.ValueWidth = 8;
+ break;
+
+ case EFI_IFR_TYPE_DATE:
+ ExpressionOpCode->ExtraData.GetSetData.ValueWidth = (UINT8) sizeof (EFI_IFR_DATE);
+ break;
+
+ case EFI_IFR_TYPE_TIME:
+ ExpressionOpCode->ExtraData.GetSetData.ValueWidth = (UINT8) sizeof (EFI_IFR_TIME);
+ break;
+
+ case EFI_IFR_TYPE_REF:
+ ExpressionOpCode->ExtraData.GetSetData.ValueWidth = (UINT8) sizeof (EFI_IFR_REF);
+ break;
+
+ case EFI_IFR_TYPE_OTHER:
+ case EFI_IFR_TYPE_UNDEFINED:
+ case EFI_IFR_TYPE_ACTION:
+ case EFI_IFR_TYPE_BUFFER:
+ default:
+ //
+ // Invalid value type for Get/Set opcode.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+ CopyMem (&ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo.VarName,
+ &((EFI_IFR_GET *) OpCodeData)->VarStoreInfo.VarName, sizeof (EFI_STRING_ID));
+ CopyMem (&ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset,
+ &((EFI_IFR_GET *) OpCodeData)->VarStoreInfo.VarOffset, sizeof (UINT16));
+ if ((ExpressionOpCode->ExtraData.GetSetData.VarStorage != NULL) &&
+ (ExpressionOpCode->ExtraData.GetSetData.VarStorage->Type == EFI_HII_VARSTORE_NAME_VALUE ||
+ ExpressionOpCode->ExtraData.GetSetData.VarStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) {
+
+ ExpressionOpCode->ExtraData.GetSetData.ValueName = GetToken (ExpressionOpCode->ExtraData.GetSetData.VarStoreInfo.VarName, FormSet->HiiHandle);
+ if (ExpressionOpCode->ExtraData.GetSetData.ValueName == NULL) {
+ //
+ // String ID is invalid.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ break;
+
+ case EFI_IFR_QUESTION_REF1_OP:
+
+ CopyMem (&ExpressionOpCode->ExtraData.QuestionRef1Data.QuestionId, &((EFI_IFR_EQ_ID_VAL_LIST *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
+ break;
+
+ case EFI_IFR_QUESTION_REF3_OP:
+
+ if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_2)) {
+ CopyMem (&ExpressionOpCode->ExtraData.QuestionRef3Data.DevicePath, &(( EFI_IFR_QUESTION_REF3_2 *) OpCodeData)->DevicePath, sizeof (EFI_STRING_ID));
+
+ if (OpCodeLength >= sizeof (EFI_IFR_QUESTION_REF3_3)) {
+ CopyMem (&ExpressionOpCode->ExtraData.QuestionRef3Data.Guid, &(( EFI_IFR_QUESTION_REF3_3 *) OpCodeData)->Guid, sizeof (EFI_GUID));
+ }
+ }
+ break;
+
+ //
+ // constant
+ //
+ case EFI_IFR_TRUE_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_BOOLEAN;
+ ExpressionValue->Value.b = TRUE;
+ break;
+
+ case EFI_IFR_FALSE_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_BOOLEAN;
+ ExpressionValue->Value.b = FALSE;
+ break;
+
+ case EFI_IFR_ONE_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ ExpressionValue->Value.u8 = 1;
+ break;
+
+ case EFI_IFR_ZERO_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ ExpressionValue->Value.u8 = 0;
+ break;
+
+ case EFI_IFR_ONES_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ ExpressionValue->Value.u64 = 0xffffffffffffffffULL;
+ break;
+
+ case EFI_IFR_UINT8_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ ExpressionValue->Value.u8 = (( EFI_IFR_UINT8 *) OpCodeData)->Value;
+ break;
+
+ case EFI_IFR_UINT16_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_16;
+ CopyMem (&ExpressionValue->Value.u16, &(( EFI_IFR_UINT16 *) OpCodeData)->Value, sizeof (UINT16));
+ break;
+
+ case EFI_IFR_UINT32_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_32;
+ CopyMem (&ExpressionValue->Value.u32, &(( EFI_IFR_UINT32 *) OpCodeData)->Value, sizeof (UINT32));
+ break;
+
+ case EFI_IFR_UINT64_OP:
+
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ CopyMem (&ExpressionValue->Value.u64, &(( EFI_IFR_UINT64 *) OpCodeData)->Value, sizeof (UINT64));
+ break;
+
+ case EFI_IFR_UNDEFINED_OP:
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+
+ case EFI_IFR_VERSION_OP:
+ ExpressionValue = &ExpressionOpCode->ExtraData.Value;
+ ExpressionValue->Type = EFI_IFR_TYPE_NUM_SIZE_16;
+ ExpressionValue->Value.u16 = EFI_IFR_SPECIFICATION_VERSION;
+ break;
+
+ default:
+ break;
+ }
+
+ //
+ // Create sub expression nested in MAP opcode
+ //
+ if (CurrentExpression == NULL && MapScopeDepth > 0) {
+
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ if (CurrentExpression == NULL) {
+ continue;
+ }
+
+ InsertTailList (MapExpressionList, &CurrentExpression->Link);
+ if (Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ }
+
+ InsertTailList (&CurrentExpression->OpCodeListHead, &ExpressionOpCode->Link);
+ if (Operand == EFI_IFR_MAP_OP) {
+ //
+ // Store current Map Expression List.
+ //
+ if (MapExpressionList != NULL) {
+ PushMapExpressionList (MapExpressionList);
+ }
+ //
+ // Initialize new Map Expression List.
+ //
+ MapExpressionList = &ExpressionOpCode->MapExpressionList;
+ InitializeListHead (MapExpressionList);
+ //
+ // Store current expression.
+ //
+ PushCurrentExpression (CurrentExpression);
+ CurrentExpression = NULL;
+ MapScopeDepth ++;
+ } else if (SingleOpCodeExpression) {
+ //
+ // There are two cases to indicate the end of an Expression:
+ // for single OpCode expression: one Expression OpCode
+ // for expression consists of more than one OpCode: EFI_IFR_END
+ //
+ SingleOpCodeExpression = FALSE;
+
+ if (InScopeDisable && CurrentForm == NULL) {
+ //
+ // This is DisableIf expression for Form, it should be a constant expression
+ //
+ Status = EvaluateHiiExpression (FormSet, CurrentForm, CurrentExpression);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ OpCodeDisabled = IsTrue (&CurrentExpression->Result);
+ }
+
+ CurrentExpression = NULL;
+ }
+
+ continue;
+ }
+
+ //
+ // Parse the Opcode
+ //
+ switch (Operand) {
+
+ case EFI_IFR_FORM_SET_OP:
+ //
+ // Check the formset GUID
+ //
+
+ if (CompareMem (&FormSet->Guid, &((EFI_IFR_FORM_SET *) OpCodeData)->Guid, sizeof (EFI_GUID)) != 0) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ CopyMem (&FormSet->FormSetTitle, &((EFI_IFR_FORM_SET *) OpCodeData)->FormSetTitle, sizeof (EFI_STRING_ID));
+ CopyMem (&FormSet->Help, &((EFI_IFR_FORM_SET *) OpCodeData)->Help, sizeof (EFI_STRING_ID));
+
+ if (OpCodeLength > OFFSET_OF (EFI_IFR_FORM_SET, Flags)) {
+ //
+ // The formset OpCode contains ClassGuid
+ //
+ FormSet->NumberOfClassGuid = (UINT8) (((EFI_IFR_FORM_SET *) OpCodeData)->Flags & 0x3);
+ CopyMem (FormSet->ClassGuid, OpCodeData + sizeof (EFI_IFR_FORM_SET), FormSet->NumberOfClassGuid * sizeof (EFI_GUID));
+ }
+ break;
+
+ case EFI_IFR_FORM_OP:
+
+ //
+ // Create a new Form for this FormSet
+ //
+ CurrentForm = AllocateZeroPool (sizeof (HII_FORM));
+ if (CurrentForm == NULL) {
+ break;
+ }
+
+ CurrentForm->Signature = HII_FORM_SIGNATURE;
+ InitializeListHead (&CurrentForm->StatementListHead);
+ InitializeListHead (&CurrentForm->ConfigRequestHead);
+ InitializeListHead (&CurrentForm->RuleListHead);
+
+ CurrentForm->FormType = STANDARD_MAP_FORM_TYPE;
+ CopyMem (&CurrentForm->FormId, &((EFI_IFR_FORM *) OpCodeData)->FormId, sizeof (UINT16));
+ CopyMem (&CurrentForm->FormTitle, &((EFI_IFR_FORM *) OpCodeData)->FormTitle, sizeof (EFI_STRING_ID));
+
+ ConditionalExprCount = GetConditionalExpressionCount(ExpressForm);
+ if ( ConditionalExprCount > 0) {
+ //
+ // Form is inside of suppressif
+ //
+ CurrentForm->SuppressExpression = (HII_EXPRESSION_LIST *) AllocatePool(
+ (UINTN) (sizeof(HII_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof(HII_EXPRESSION *))));
+ if (CurrentForm->SuppressExpression == NULL) {
+ break;
+ }
+
+ CurrentForm->SuppressExpression->Count = (UINTN) ConditionalExprCount;
+ CurrentForm->SuppressExpression->Signature = HII_EXPRESSION_LIST_SIGNATURE;
+ CopyMem (CurrentForm->SuppressExpression->Expression, GetConditionalExpressionList(ExpressForm), (UINTN) (sizeof (HII_EXPRESSION *) * ConditionalExprCount));
+ }
+
+ if (Scope != 0) {
+ //
+ // Enter scope of a Form, suppressif will be used for Question or Option
+ //
+ SuppressForQuestion = TRUE;
+ }
+
+ //
+ // Insert into Form list of this FormSet
+ //
+ InsertTailList (&FormSet->FormListHead, &CurrentForm->Link);
+ break;
+
+ case EFI_IFR_FORM_MAP_OP:
+
+ //
+ // Create a new Form for this FormSet
+ //
+ CurrentForm = AllocateZeroPool (sizeof (HII_FORM));
+ if (CurrentForm == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CurrentForm->Signature = HII_FORM_SIGNATURE;
+ InitializeListHead (&CurrentForm->StatementListHead);
+ InitializeListHead (&CurrentForm->ConfigRequestHead);
+ InitializeListHead (&CurrentForm->RuleListHead);
+
+ CopyMem (&CurrentForm->FormId, &((EFI_IFR_FORM *) OpCodeData)->FormId, sizeof (UINT16));
+
+ MapMethod = (EFI_IFR_FORM_MAP_METHOD *) (OpCodeData + sizeof (EFI_IFR_FORM_MAP));
+ //
+ // FormMap Form must contain at least one Map Method.
+ //
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->Length < ((UINTN) (UINT8 *) (MapMethod + 1) - (UINTN) OpCodeData)) {
+ return EFI_INVALID_PARAMETER;
+ }
+ //
+ // Try to find the standard form map method.
+ //
+ while (((UINTN) (UINT8 *) MapMethod - (UINTN) OpCodeData) < ((EFI_IFR_OP_HEADER *) OpCodeData)->Length) {
+ if (CompareGuid ((EFI_GUID *) (VOID *) &MapMethod->MethodIdentifier, &gEfiHiiStandardFormGuid)) {
+ CopyMem (&CurrentForm->FormTitle, &MapMethod->MethodTitle, sizeof (EFI_STRING_ID));
+ CurrentForm->FormType = STANDARD_MAP_FORM_TYPE;
+ break;
+ }
+ MapMethod ++;
+ }
+ //
+ // If the standard form map method is not found, the first map method title will be used.
+ //
+ if (CurrentForm->FormTitle == 0) {
+ MapMethod = (EFI_IFR_FORM_MAP_METHOD *) (OpCodeData + sizeof (EFI_IFR_FORM_MAP));
+ CopyMem (&CurrentForm->FormTitle, &MapMethod->MethodTitle, sizeof (EFI_STRING_ID));
+ }
+
+ ConditionalExprCount = GetConditionalExpressionCount(ExpressForm);
+ if ( ConditionalExprCount > 0) {
+ //
+ // Form is inside of suppressif
+ //
+ CurrentForm->SuppressExpression = (HII_EXPRESSION_LIST *) AllocateZeroPool (
+ (UINTN) (sizeof(HII_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof(HII_EXPRESSION *))));
+ if (CurrentForm->SuppressExpression == NULL) {
+
+ FreePool (CurrentForm);
+ return EFI_OUT_OF_RESOURCES;
+ }
+ CurrentForm->SuppressExpression->Count = (UINTN) ConditionalExprCount;
+ CurrentForm->SuppressExpression->Signature = HII_EXPRESSION_LIST_SIGNATURE;
+ CopyMem (CurrentForm->SuppressExpression->Expression, GetConditionalExpressionList(ExpressForm), (UINTN) (sizeof (HII_EXPRESSION *) * ConditionalExprCount));
+ }
+
+ if (Scope != 0) {
+ //
+ // Enter scope of a Form, suppressif will be used for Question or Option
+ //
+ SuppressForQuestion = TRUE;
+ }
+
+ //
+ // Insert into Form list of this FormSet
+ //
+ InsertTailList (&FormSet->FormListHead, &CurrentForm->Link);
+ break;
+
+ //
+ // Storage
+ //
+ case EFI_IFR_VARSTORE_OP:
+
+ //
+ // Create a buffer Storage for this FormSet
+ //
+ Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_BUFFER, OpCodeData);
+ CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
+ break;
+
+ case EFI_IFR_VARSTORE_NAME_VALUE_OP:
+
+ //
+ // Create a name/value Storage for this FormSet
+ //
+ Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_NAME_VALUE, OpCodeData);
+ CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_NAME_VALUE *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
+ break;
+
+ case EFI_IFR_VARSTORE_EFI_OP:
+
+ //
+ // Create a EFI variable Storage for this FormSet
+ //
+ if (OpCodeLength < sizeof (EFI_IFR_VARSTORE_EFI)) {
+ //
+ // Create efi varstore with format follow UEFI spec before 2.3.1.
+ //
+ Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_EFI_VARIABLE, OpCodeData);
+ } else {
+ //
+ // Create efi varstore with format follow UEFI spec 2.3.1 and later.
+ //
+ Storage = CreateStorage (FormSet, EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER, OpCodeData);
+ }
+ CopyMem (&Storage->VarStoreId, &((EFI_IFR_VARSTORE_EFI *) OpCodeData)->VarStoreId, sizeof (EFI_VARSTORE_ID));
+ break;
+
+ //
+ // DefaultStore
+ //
+ case EFI_IFR_DEFAULTSTORE_OP:
+
+ HaveInserted = FALSE;
+ DefaultStore = AllocateZeroPool (sizeof (HII_FORMSET_DEFAULTSTORE));
+ if (DefaultStore == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ DefaultStore->Signature = HII_FORMSET_DEFAULTSTORE_SIGNATURE;
+
+ CopyMem (&DefaultStore->DefaultId, &((EFI_IFR_DEFAULTSTORE *) OpCodeData)->DefaultId, sizeof (UINT16));
+ CopyMem (&DefaultStore->DefaultName, &((EFI_IFR_DEFAULTSTORE *) OpCodeData)->DefaultName, sizeof (EFI_STRING_ID));
+ //
+ // Insert it to the DefaultStore list of this Formset with ascending order.
+ //
+ if (!IsListEmpty (&FormSet->DefaultStoreListHead)) {
+ DefaultLink = GetFirstNode (&FormSet->DefaultStoreListHead);
+ while (!IsNull (&FormSet->DefaultStoreListHead, DefaultLink)) {
+ PreDefaultStore = HII_FORMSET_DEFAULTSTORE_FROM_LINK(DefaultLink);
+ DefaultLink = GetNextNode (&FormSet->DefaultStoreListHead, DefaultLink);
+ if (DefaultStore->DefaultId < PreDefaultStore->DefaultId) {
+ InsertTailList (&PreDefaultStore->Link, &DefaultStore->Link);
+ HaveInserted = TRUE;
+ break;
+ }
+ }
+ }
+ if (!HaveInserted) {
+ InsertTailList (&FormSet->DefaultStoreListHead, &DefaultStore->Link);
+ }
+ break;
+
+ //
+ // Statements
+ //
+ case EFI_IFR_SUBTITLE_OP:
+
+ CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
+ break;
+
+ case EFI_IFR_TEXT_OP:
+
+ CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
+ CopyMem (&CurrentStatement->ExtraData.TextTwo, &((EFI_IFR_TEXT *) OpCodeData)->TextTwo, sizeof (EFI_STRING_ID));
+ break;
+
+ case EFI_IFR_RESET_BUTTON_OP:
+
+ CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
+ CopyMem (&CurrentStatement->ExtraData.DefaultId, &((EFI_IFR_RESET_BUTTON *) OpCodeData)->DefaultId, sizeof (EFI_DEFAULT_ID));
+ break;
+
+ //
+ // Questions
+ //
+ case EFI_IFR_ACTION_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+ CurrentStatement->Value.Type = EFI_IFR_TYPE_ACTION;
+
+ if (OpCodeLength == sizeof (EFI_IFR_ACTION_1)) {
+ //
+ // No QuestionConfig present, so no configuration string will be processed
+ //
+ CurrentStatement->ExtraData.QuestionConfig = 0;
+ } else {
+ CopyMem (&CurrentStatement->ExtraData.QuestionConfig, &((EFI_IFR_ACTION *) OpCodeData)->QuestionConfig, sizeof (EFI_STRING_ID));
+ }
+ break;
+
+ case EFI_IFR_REF_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+ StatementValue = &CurrentStatement->Value;
+ StatementValue->Type = EFI_IFR_TYPE_REF;
+ if (OpCodeLength >= sizeof (EFI_IFR_REF)) {
+ CopyMem (&StatementValue->Value.ref.FormId, &((EFI_IFR_REF *) OpCodeData)->FormId, sizeof (EFI_FORM_ID));
+
+ if (OpCodeLength >= sizeof (EFI_IFR_REF2)) {
+ CopyMem (&StatementValue->Value.ref.QuestionId, &((EFI_IFR_REF2 *) OpCodeData)->QuestionId, sizeof (EFI_QUESTION_ID));
+
+ if (OpCodeLength >= sizeof (EFI_IFR_REF3)) {
+ CopyMem (&StatementValue->Value.ref.FormSetGuid, &((EFI_IFR_REF3 *) OpCodeData)->FormSetId, sizeof (EFI_GUID));
+
+ if (OpCodeLength >= sizeof (EFI_IFR_REF4)) {
+ CopyMem (&StatementValue->Value.ref.DevicePath, &((EFI_IFR_REF4 *) OpCodeData)->DevicePath, sizeof (EFI_STRING_ID));
+ }
+ }
+ }
+ }
+ CurrentStatement->StorageWidth = (UINT16) sizeof (EFI_HII_REF);
+ InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
+ break;
+
+ case EFI_IFR_ONE_OF_OP:
+ case EFI_IFR_NUMERIC_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+ CurrentStatement->ExtraData.NumData.Flags = ((EFI_IFR_ONE_OF *) OpCodeData)->Flags;
+ StatementValue = &CurrentStatement->Value;
+
+ if (QuestionReferBitField) {
+ //
+ // Get the bit var store info (bit/byte offset, bit/byte offset)
+ //
+ CurrentStatement->QuestionReferToBitField = TRUE;
+ CurrentStatement->BitStorageWidth = CurrentStatement->ExtraData.NumData.Flags & EDKII_IFR_NUMERIC_SIZE_BIT;
+ CurrentStatement->BitVarOffset = CurrentStatement->VarStoreInfo.VarOffset;
+ CurrentStatement->VarStoreInfo.VarOffset = CurrentStatement->BitVarOffset / 8;
+ TotalBits = CurrentStatement->BitVarOffset % 8 + CurrentStatement->BitStorageWidth;
+ CurrentStatement->StorageWidth = (TotalBits % 8 == 0? TotalBits / 8: TotalBits / 8 + 1);
+
+ //
+ // Get the Minimum/Maximum/Step value(Note: bit field type has been stored as UINT32 type)
+ //
+ CurrentStatement->ExtraData.NumData.Minimum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MinValue;
+ CurrentStatement->ExtraData.NumData.Maximum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MaxValue;
+ CurrentStatement->ExtraData.NumData.Step = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.Step;
+
+ //
+ // Update the Flag and type of Minimum/Maximum/Step according to the actual width of bit field,
+ // in order to make Browser handle these question with bit varstore correctly.
+ //
+ ((EFI_IFR_NUMERIC *) OpCodeData)->Flags &= EDKII_IFR_DISPLAY_BIT;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->Flags >>= 2;
+ switch (CurrentStatement->StorageWidth) {
+ case 1:
+ ((EFI_IFR_NUMERIC *) OpCodeData)->Flags |= EFI_IFR_TYPE_NUM_SIZE_8;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MinValue = (UINT8)CurrentStatement->ExtraData.NumData.Minimum;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MaxValue = (UINT8)CurrentStatement->ExtraData.NumData.Maximum;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.Step = (UINT8)CurrentStatement->ExtraData.NumData.Step;
+ StatementValue->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ break;
+ case 2:
+ ((EFI_IFR_NUMERIC *) OpCodeData)->Flags |= EFI_IFR_TYPE_NUM_SIZE_16;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MinValue = (UINT16)CurrentStatement->ExtraData.NumData.Minimum;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MaxValue = (UINT16)CurrentStatement->ExtraData.NumData.Maximum;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.Step = (UINT16)CurrentStatement->ExtraData.NumData.Step;
+ StatementValue->Type = EFI_IFR_TYPE_NUM_SIZE_16;
+ break;
+ case 3:
+ case 4:
+ ((EFI_IFR_NUMERIC *) OpCodeData)->Flags |= EFI_IFR_TYPE_NUM_SIZE_32;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MinValue = (UINT32)CurrentStatement->ExtraData.NumData.Minimum;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MaxValue = (UINT32)CurrentStatement->ExtraData.NumData.Maximum;
+ ((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.Step = (UINT32)CurrentStatement->ExtraData.NumData.Step;
+ StatementValue->Type = EFI_IFR_TYPE_NUM_SIZE_32;
+ break;
+ default:
+ break;
+ }
+ } else {
+ switch (CurrentStatement->ExtraData.NumData.Flags & EFI_IFR_NUMERIC_SIZE) {
+ case EFI_IFR_NUMERIC_SIZE_1:
+ CurrentStatement->ExtraData.NumData.Minimum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MinValue;
+ CurrentStatement->ExtraData.NumData.Maximum = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.MaxValue;
+ CurrentStatement->ExtraData.NumData.Step = ((EFI_IFR_NUMERIC *) OpCodeData)->data.u8.Step;
+ CurrentStatement->StorageWidth = (UINT16) sizeof (UINT8);
+ StatementValue->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+
+ break;
+
+ case EFI_IFR_NUMERIC_SIZE_2:
+ CopyMem (&CurrentStatement->ExtraData.NumData.Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MinValue, sizeof (UINT16));
+ CopyMem (&CurrentStatement->ExtraData.NumData.Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.MaxValue, sizeof (UINT16));
+ CopyMem (&CurrentStatement->ExtraData.NumData.Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u16.Step, sizeof (UINT16));
+ CurrentStatement->StorageWidth = (UINT16) sizeof (UINT16);
+ StatementValue->Type = EFI_IFR_TYPE_NUM_SIZE_16;
+
+ break;
+
+ case EFI_IFR_NUMERIC_SIZE_4:
+ CopyMem (&CurrentStatement->ExtraData.NumData.Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MinValue, sizeof (UINT32));
+ CopyMem (&CurrentStatement->ExtraData.NumData.Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.MaxValue, sizeof (UINT32));
+ CopyMem (&CurrentStatement->ExtraData.NumData.Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u32.Step, sizeof (UINT32));
+ CurrentStatement->StorageWidth = (UINT16) sizeof (UINT32);
+ StatementValue->Type = EFI_IFR_TYPE_NUM_SIZE_32;
+
+ break;
+
+ case EFI_IFR_NUMERIC_SIZE_8:
+ CopyMem (&CurrentStatement->ExtraData.NumData.Minimum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.MinValue, sizeof (UINT64));
+ CopyMem (&CurrentStatement->ExtraData.NumData.Maximum, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.MaxValue, sizeof (UINT64));
+ CopyMem (&CurrentStatement->ExtraData.NumData.Step, &((EFI_IFR_NUMERIC *) OpCodeData)->data.u64.Step, sizeof (UINT64));
+ CurrentStatement->StorageWidth = (UINT16) sizeof (UINT64);
+ StatementValue->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+
+ break;
+
+ default:
+
+ break;
+ }
+ }
+ InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
+
+ if ((Operand == EFI_IFR_ONE_OF_OP) && Scope != 0) {
+ SuppressForOption = TRUE;
+ }
+ break;
+
+ case EFI_IFR_ORDERED_LIST_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+ CurrentStatement->ExtraData.OrderListData.Flags = ((EFI_IFR_ORDERED_LIST *) OpCodeData)->Flags;
+ CurrentStatement->ExtraData.OrderListData.MaxContainers = ((EFI_IFR_ORDERED_LIST *) OpCodeData)->MaxContainers;
+ CurrentStatement->Value.Type = EFI_IFR_TYPE_BUFFER;
+ CurrentStatement->Value.Buffer = NULL;
+
+ if (Scope != 0) {
+ SuppressForOption = TRUE;
+ }
+ break;
+
+ case EFI_IFR_CHECKBOX_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+ CurrentStatement->ExtraData.Flags = ((EFI_IFR_CHECKBOX *) OpCodeData)->Flags;
+ CurrentStatement->StorageWidth = (UINT16) sizeof (BOOLEAN);
+ CurrentStatement->Value.Type = EFI_IFR_TYPE_BOOLEAN;
+
+ if (QuestionReferBitField) {
+ //
+ // Get the bit var store info (bit/byte offset, bit/byte offset)
+ //
+ CurrentStatement->QuestionReferToBitField = TRUE;
+ CurrentStatement->BitStorageWidth = 1;
+ CurrentStatement->BitVarOffset = CurrentStatement->VarStoreInfo.VarOffset;
+ CurrentStatement->VarStoreInfo.VarOffset = CurrentStatement->BitVarOffset / 8;
+ TotalBits = CurrentStatement->BitVarOffset % 8 + CurrentStatement->BitStorageWidth;
+ CurrentStatement->StorageWidth = (TotalBits % 8 == 0? TotalBits / 8: TotalBits / 8 + 1);
+ }
+
+ InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
+
+ break;
+
+ case EFI_IFR_STRING_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+
+ //
+ // MinSize is the minimum number of characters that can be accepted for this opcode,
+ // MaxSize is the maximum number of characters that can be accepted for this opcode.
+ // The characters are stored as Unicode, so the storage width should multiply 2.
+ //
+ CurrentStatement->ExtraData.StrData.MinSize = ((EFI_IFR_STRING *) OpCodeData)->MinSize;
+ CurrentStatement->ExtraData.StrData.MaxSize = ((EFI_IFR_STRING *) OpCodeData)->MaxSize;
+ CurrentStatement->ExtraData.StrData.Flags = ((EFI_IFR_STRING *) OpCodeData)->Flags;
+ CurrentStatement->StorageWidth = (UINT16)((UINTN) CurrentStatement->ExtraData.StrData.MaxSize * sizeof (CHAR16));
+
+ CurrentStatement->Value.Type = EFI_IFR_TYPE_STRING;
+ CurrentStatement->Value.Buffer = AllocateZeroPool (CurrentStatement->StorageWidth + sizeof (CHAR16));
+ if (CurrentStatement->Value.Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ CurrentStatement->Value.Value.string = NewString ((CHAR16*) CurrentStatement->Value.Buffer, FormSet->HiiHandle);
+
+ InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
+ break;
+
+ case EFI_IFR_PASSWORD_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+
+ //
+ // MinSize is the minimum number of characters that can be accepted for this opcode,
+ // MaxSize is the maximum number of characters that can be accepted for this opcode.
+ // The characters are stored as Unicode, so the storage width should multiply 2.
+ //
+ CopyMem (&CurrentStatement->ExtraData.PwdData.MinSize, &((EFI_IFR_PASSWORD *) OpCodeData)->MinSize, sizeof (UINT16));
+ CopyMem (&CurrentStatement->ExtraData.PwdData.MaxSize, &((EFI_IFR_PASSWORD *) OpCodeData)->MaxSize, sizeof (UINT16));
+ CurrentStatement->StorageWidth = (UINT16)((UINTN) CurrentStatement->ExtraData.PwdData.MaxSize * sizeof (CHAR16));
+
+ CurrentStatement->Value.Type = EFI_IFR_TYPE_STRING;
+ CurrentStatement->Value.Buffer = AllocateZeroPool ((CurrentStatement->StorageWidth + sizeof (CHAR16)));
+ if (CurrentStatement->Value.Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ CurrentStatement->Value.Value.string = NewString ((CHAR16*) CurrentStatement->Value.Buffer, FormSet->HiiHandle);
+
+ InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
+ break;
+
+ case EFI_IFR_DATE_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+ CurrentStatement->ExtraData.Flags = ((EFI_IFR_DATE *) OpCodeData)->Flags;
+ CurrentStatement->Value.Type = EFI_IFR_TYPE_DATE;
+
+ if ((CurrentStatement->ExtraData.Flags & EFI_QF_DATE_STORAGE) == QF_DATE_STORAGE_NORMAL) {
+ CurrentStatement->StorageWidth = (UINT16) sizeof (EFI_HII_DATE);
+
+ InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
+ } else {
+ //
+ // Don't assign storage for RTC type of date/time
+ //
+ CurrentStatement->Storage = NULL;
+ CurrentStatement->StorageWidth = 0;
+ }
+ break;
+
+ case EFI_IFR_TIME_OP:
+
+ CurrentStatement = CreateQuestion (OpCodeData, FormSet, CurrentForm);
+ CurrentStatement->ExtraData.Flags = ((EFI_IFR_TIME *) OpCodeData)->Flags;
+ CurrentStatement->Value.Type = EFI_IFR_TYPE_TIME;
+
+ if ((CurrentStatement->ExtraData.Flags & QF_TIME_STORAGE) == QF_TIME_STORAGE_NORMAL) {
+ CurrentStatement->StorageWidth = (UINT16) sizeof (EFI_HII_TIME);
+
+ InitializeRequestElement (FormSet, CurrentStatement, CurrentForm);
+ } else {
+ //
+ // Don't assign storage for RTC type of date/time
+ //
+ CurrentStatement->Storage = NULL;
+ CurrentStatement->StorageWidth = 0;
+ }
+ break;
+
+ //
+ // Default
+ //
+ case EFI_IFR_DEFAULT_OP:
+
+ //
+ // EFI_IFR_DEFAULT appear in scope of a Question,
+ // It creates a default value for the current question.
+ // A Question may have more than one Default value which have different default types.
+ //
+ CurrentDefault = AllocateZeroPool (sizeof (HII_QUESTION_DEFAULT));
+ if (CurrentDefault == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ CurrentDefault->Signature = HII_QUESTION_DEFAULT_SIGNATURE;
+
+ CurrentDefault->Value.Type = ((EFI_IFR_DEFAULT *) OpCodeData)->Type;
+ CopyMem (&CurrentDefault->DefaultId, &((EFI_IFR_DEFAULT *) OpCodeData)->DefaultId, sizeof (UINT16));
+ if (CurrentDefault->Value.Type == EFI_IFR_TYPE_BUFFER) {
+
+ CurrentDefault->Value.BufferLen = (UINT16) (OpCodeLength - OFFSET_OF (EFI_IFR_DEFAULT, Value));
+ CurrentDefault->Value.Buffer = AllocateCopyPool (CurrentDefault->Value.BufferLen, &((EFI_IFR_DEFAULT *) OpCodeData)->Value);
+ if (CurrentDefault->Value.Buffer == NULL) {
+
+ FreePool (CurrentDefault);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (ParentStatement->Operand == EFI_IFR_ORDERED_LIST_OP) {
+
+ ParentStatement->Value.BufferLen = CurrentDefault->Value.BufferLen;
+ CopyMem (ParentStatement->Value.Buffer, CurrentDefault->Value.Buffer, ParentStatement->Value.BufferLen);
+ }
+
+ } else {
+
+ CopyMem (&CurrentDefault->Value.Value, &((EFI_IFR_DEFAULT *) OpCodeData)->Value, OpCodeLength - OFFSET_OF (EFI_IFR_DEFAULT, Value));
+ ExtendValueToU64 (&CurrentDefault->Value);
+
+ CopyMem (&ParentStatement->Value.Value, &((EFI_IFR_DEFAULT *) OpCodeData)->Value, OpCodeLength - OFFSET_OF (EFI_IFR_DEFAULT, Value));
+ ExtendValueToU64 (&ParentStatement->Value);
+ }
+
+ //
+ // Insert to Default Value list of current Question
+ //
+ InsertTailList (&ParentStatement->DefaultListHead, &CurrentDefault->Link);
+
+ if (Scope != 0) {
+ InScopeDefault = TRUE;
+ }
+ break;
+
+ //
+ // Option
+ //
+ case EFI_IFR_ONE_OF_OPTION_OP:
+
+ if (ParentStatement == NULL) {
+ break;
+ }
+
+ CurrentDefault = NULL;
+ if ((ParentStatement->Operand == EFI_IFR_ORDERED_LIST_OP || ParentStatement->Operand == EFI_IFR_ONE_OF_OP) &&
+ ((((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Flags & (EFI_IFR_OPTION_DEFAULT | EFI_IFR_OPTION_DEFAULT_MFG)) != 0)) {
+
+ CurrentDefault = AllocateZeroPool (sizeof (HII_QUESTION_DEFAULT));
+ if (CurrentDefault == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CurrentDefault->Signature = HII_QUESTION_DEFAULT_SIGNATURE;
+ if ((((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Flags & EFI_IFR_OPTION_DEFAULT) != 0) {
+ CurrentDefault->DefaultId = EFI_HII_DEFAULT_CLASS_STANDARD;
+ } else {
+ CurrentDefault->DefaultId = EFI_HII_DEFAULT_CLASS_MANUFACTURING;
+ }
+
+ if (ParentStatement->Operand == EFI_IFR_ORDERED_LIST_OP) {
+
+ CurrentDefault->Value.Type = EFI_IFR_TYPE_BUFFER;
+ CurrentDefault->Value.BufferLen = (UINT16) (OpCodeLength - OFFSET_OF (EFI_IFR_ONE_OF_OPTION, Value));
+ CurrentDefault->Value.Buffer = AllocateCopyPool (CurrentDefault->Value.BufferLen, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Value);
+ if (CurrentDefault->Value.Buffer == NULL) {
+
+ FreePool (CurrentDefault);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ } else {
+
+ CurrentDefault->Value.Type = ((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Type;
+ CopyMem (&CurrentDefault->Value.Value, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Value, sizeof (EFI_IFR_TYPE_VALUE));
+ ExtendValueToU64 (&CurrentDefault->Value);
+ }
+
+ //
+ // Insert to Default Value list of current Question
+ //
+ InsertTailList (&ParentStatement->DefaultListHead, &CurrentDefault->Link);
+ }
+
+ //
+ // EFI_IFR_ONE_OF_OPTION appear in scope of a Question.
+ // It create a selection for use in current Question.
+ //
+ CurrentOption = AllocateZeroPool (sizeof (HII_QUESTION_OPTION));
+ if (CurrentOption == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CurrentOption->Signature = HII_QUESTION_OPTION_SIGNATURE;
+ CurrentOption->OpCode = (EFI_IFR_ONE_OF_OPTION *) OpCodeData;
+ CurrentOption->Flags = ((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Flags;
+ CurrentOption->Value.Type = ((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Type;
+ CopyMem (&CurrentOption->Text, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Option, sizeof (EFI_STRING_ID));
+ CopyMem (&CurrentOption->Value.Value, &((EFI_IFR_ONE_OF_OPTION *) OpCodeData)->Value, OpCodeLength - OFFSET_OF (EFI_IFR_ONE_OF_OPTION, Value));
+ ExtendValueToU64 (&CurrentOption->Value);
+
+ ConditionalExprCount = GetConditionalExpressionCount(ExpressOption);
+ if ( ConditionalExprCount > 0) {
+
+ //
+ // Form is inside of suppressif
+ //
+ CurrentOption->SuppressExpression = (HII_EXPRESSION_LIST *) AllocatePool(
+ (UINTN) (sizeof(HII_EXPRESSION_LIST) + ((ConditionalExprCount -1) * sizeof(HII_EXPRESSION *))));
+ if (CurrentOption->SuppressExpression == NULL) {
+
+ FreePool (CurrentOption);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CurrentOption->SuppressExpression->Count = (UINTN) ConditionalExprCount;
+ CurrentOption->SuppressExpression->Signature = HII_EXPRESSION_LIST_SIGNATURE;
+ CopyMem (CurrentOption->SuppressExpression->Expression, GetConditionalExpressionList(ExpressOption), (UINTN) (sizeof (HII_EXPRESSION *) * ConditionalExprCount));
+ }
+
+ //
+ // Insert to Option list of current Question
+ //
+ InsertTailList (&ParentStatement->OptionListHead, &CurrentOption->Link);
+
+ //
+ // Now we know the Storage width of nested Ordered List
+ //
+ if ((ParentStatement->Operand == EFI_IFR_ORDERED_LIST_OP) && (ParentStatement->Value.Buffer == NULL)) {
+
+ Width = 1;
+ switch (CurrentOption->Value.Type) {
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ Width = 1;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ Width = 2;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ Width = 4;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_64:
+ Width = 8;
+ break;
+
+ default:
+ //
+ // Invalid type for Ordered List
+ //
+ break;
+ }
+
+ ParentStatement->StorageWidth = (UINT16) (ParentStatement->ExtraData.OrderListData.MaxContainers * Width);
+ ParentStatement->Value.Buffer = AllocateZeroPool (ParentStatement->StorageWidth);
+ if (ParentStatement->Value.Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ ParentStatement->Value.BufferLen = 0;
+ ParentStatement->Value.BufferValueType = CurrentOption->Value.Type;
+ InitializeRequestElement (FormSet, ParentStatement, CurrentForm);
+ }
+
+ break;
+
+ //
+ // Conditional
+ //
+ case EFI_IFR_NO_SUBMIT_IF_OP:
+ case EFI_IFR_INCONSISTENT_IF_OP:
+
+ //
+ // Create an Expression node
+ //
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CopyMem (&CurrentExpression->ExtraData.Error, &((EFI_IFR_INCONSISTENT_IF *) OpCodeData)->Error, sizeof (EFI_STRING_ID));
+
+ if (Operand == EFI_IFR_NO_SUBMIT_IF_OP) {
+ CurrentExpression->Type = EFI_HII_EXPRESSION_NO_SUBMIT_IF;
+ InsertTailList (&ParentStatement->NoSubmitListHead, &CurrentExpression->Link);
+ } else {
+ CurrentExpression->Type = EFI_HII_EXPRESSION_INCONSISTENT_IF;
+ InsertTailList (&ParentStatement->InconsistentListHead, &CurrentExpression->Link);
+ }
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+
+ case EFI_IFR_WARNING_IF_OP:
+
+ //
+ // Create an Expression node
+ //
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CopyMem (&CurrentExpression->ExtraData.WarningIfData.WarningIfError, &((EFI_IFR_WARNING_IF *) OpCodeData)->Warning, sizeof (EFI_STRING_ID));
+ CurrentExpression->ExtraData.WarningIfData.TimeOut = ((EFI_IFR_WARNING_IF *) OpCodeData)->TimeOut;
+ CurrentExpression->Type = EFI_HII_EXPRESSION_WARNING_IF;
+ InsertTailList (&ParentStatement->WarningListHead, &CurrentExpression->Link);
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ case EFI_IFR_SUPPRESS_IF_OP:
+
+ //
+ // Question and Option will appear in scope of this OpCode
+ //
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CurrentExpression->Type = EFI_HII_EXPRESSION_SUPPRESS_IF;
+
+ if (SuppressForOption) {
+ PushConditionalExpression(CurrentExpression, ExpressOption);
+ } else if (SuppressForQuestion) {
+ PushConditionalExpression(CurrentExpression, ExpressStatement);
+ } else {
+ PushConditionalExpression(CurrentExpression, ExpressForm);
+ }
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ case EFI_IFR_GRAY_OUT_IF_OP:
+
+ //
+ // Questions will appear in scope of this OpCode
+ //
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CurrentExpression->Type = EFI_HII_EXPRESSION_GRAY_OUT_IF;
+ PushConditionalExpression(CurrentExpression, ExpressStatement);
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ case EFI_IFR_DISABLE_IF_OP:
+
+ //
+ // The DisableIf expression should only rely on constant, so it could be
+ // evaluated at initialization and it will not be queued
+ //
+ CurrentExpression = AllocateZeroPool (sizeof (HII_EXPRESSION));
+ if (CurrentExpression == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CurrentExpression->Signature = HII_EXPRESSION_SIGNATURE;
+ CurrentExpression->Type = EFI_HII_EXPRESSION_DISABLE_IF;
+ InitializeListHead (&CurrentExpression->OpCodeListHead);
+
+ if (CurrentForm != NULL) {
+ //
+ // This is DisableIf for Question, enqueue it to Form expression list
+ //
+ PushConditionalExpression(CurrentExpression, ExpressStatement);
+ }
+
+ OpCodeDisabled = FALSE;
+ InScopeDisable = TRUE;
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ //
+ // Expression
+ //
+ case EFI_IFR_VALUE_OP:
+
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CurrentExpression->Type = EFI_HII_EXPRESSION_VALUE;
+
+ if (InScopeDefault) {
+ //
+ // Used for default (EFI_IFR_DEFAULT)
+ //
+ CurrentDefault->ValueExpression = CurrentExpression;
+ } else {
+
+ //
+ // If used for a question, then the question will be read-only
+ //
+ // Make sure CurrentStatement is not NULL.
+ // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
+ // file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler.
+ //
+ if (ParentStatement == NULL) {
+ break;
+ }
+ ParentStatement->ValueExpression = CurrentExpression;
+ }
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ case EFI_IFR_RULE_OP:
+
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CurrentExpression->Type = EFI_HII_EXPRESSION_RULE;
+
+ CurrentExpression->ExtraData.RuleId = ((EFI_IFR_RULE *) OpCodeData)->RuleId;
+ InsertTailList (&CurrentForm->RuleListHead, &CurrentExpression->Link);
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ case EFI_IFR_READ_OP:
+
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CurrentExpression->Type = EFI_HII_EXPRESSION_READ;
+
+ //
+ // Make sure CurrentStatement is not NULL.
+ // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
+ // file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler.
+ //
+ if (ParentStatement == NULL) {
+ break;
+ }
+ ParentStatement->ReadExpression = CurrentExpression;
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ case EFI_IFR_WRITE_OP:
+
+ CurrentExpression = CreateExpression (CurrentForm, OpCodeData);
+ CurrentExpression->Type = EFI_HII_EXPRESSION_WRITE;
+
+ //
+ // Make sure CurrentStatement is not NULL.
+ // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
+ // file is wrongly generated by tools such as VFR Compiler. There may be a bug in VFR Compiler.
+ //
+ if (ParentStatement == NULL) {
+ break;
+ }
+ ParentStatement->WriteExpression = CurrentExpression;
+
+ //
+ // Take a look at next OpCode to see whether current expression consists
+ // of single OpCode
+ //
+ if (((EFI_IFR_OP_HEADER *) (OpCodeData + OpCodeLength))->Scope == 0) {
+ SingleOpCodeExpression = TRUE;
+ }
+ break;
+
+ //
+ // Image
+ //
+ case EFI_IFR_IMAGE_OP:
+ //
+ // Get ScopeOpcode from top of stack
+ //
+ PopScope (&ScopeOpCode);
+ PushScope (ScopeOpCode);
+
+ switch (ScopeOpCode) {
+ case EFI_IFR_FORM_SET_OP:
+
+ ImageId = &FormSet->ImageId;
+ break;
+
+ case EFI_IFR_FORM_OP:
+ case EFI_IFR_FORM_MAP_OP:
+
+ if (CurrentForm != NULL) {
+ ImageId = &CurrentForm->ImageId;
+ }
+ break;
+
+ case EFI_IFR_ONE_OF_OPTION_OP:
+
+ if (CurrentOption != NULL) {
+ ImageId = &CurrentOption->ImageId;
+ }
+ break;
+
+ default:
+
+ //
+ // Make sure CurrentStatement is not NULL.
+ // If it is NULL, 1) ParseOpCodes functions may parse the IFR wrongly. Or 2) the IFR
+ // file is wrongly generated by tools such as VFR Compiler.
+ //
+ if (ParentStatement != NULL) {
+ ImageId = &ParentStatement->ImageId;
+ }
+ break;
+ }
+
+ CopyMem (ImageId, &((EFI_IFR_IMAGE *) OpCodeData)->Id, sizeof (EFI_IMAGE_ID));
+ break;
+
+ //
+ // Refresh
+ //
+ case EFI_IFR_REFRESH_OP:
+
+ if (ParentStatement != NULL) {
+ ParentStatement->RefreshInterval = ((EFI_IFR_REFRESH *) OpCodeData)->RefreshInterval;
+ }
+ break;
+
+ //
+ // Refresh guid.
+ //
+ case EFI_IFR_REFRESH_ID_OP:
+ //
+ // Get ScopeOpcode from top of stack
+ //
+ PopScope (&ScopeOpCode);
+ PushScope (ScopeOpCode);
+
+ switch (ScopeOpCode) {
+ case EFI_IFR_FORM_OP:
+ case EFI_IFR_FORM_MAP_OP:
+
+ if (CurrentForm != NULL) {
+
+ CopyMem (&CurrentForm->RefreshGuid, &((EFI_IFR_REFRESH_ID *) OpCodeData)->RefreshEventGroupId, sizeof (EFI_GUID));
+ }
+ break;
+
+ default:
+
+ if (ParentStatement != NULL) {
+ if (ParentStatement->Operand == EFI_IFR_NUMERIC_OP) {
+ CopyMem (&ParentStatement->ExtraData.NumData.Guid, &((EFI_IFR_REFRESH_ID *) OpCodeData)->RefreshEventGroupId, sizeof (EFI_GUID));
+ }
+ }
+ break;
+ }
+ break;
+
+ //
+ // Modal tag
+ //
+ case EFI_IFR_MODAL_TAG_OP:
+
+ if (CurrentForm != NULL) {
+ CurrentForm->ModalForm = TRUE;
+ }
+ break;
+
+ //
+ // Lock tag, used by form and statement.
+ //
+ case EFI_IFR_LOCKED_OP:
+ //
+ // Get ScopeOpcode from top of stack
+ //
+ PopScope (&ScopeOpCode);
+ PushScope (ScopeOpCode);
+
+ switch (ScopeOpCode) {
+ case EFI_IFR_FORM_OP:
+ case EFI_IFR_FORM_MAP_OP:
+
+ if (CurrentForm != NULL) {
+ CurrentForm->Locked = TRUE;
+ }
+ break;
+
+ default:
+
+ if (ParentStatement != NULL) {
+ ParentStatement->Locked = TRUE;
+ }
+ }
+ break;
+
+ //
+ // Vendor specific
+ //
+ case EFI_IFR_GUID_OP:
+ CurrentStatement = CreateStatement (OpCodeData, FormSet, CurrentForm);
+ if (CompareGuid ((EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)), &gEdkiiIfrBitVarstoreGuid)) {
+ Scope = 0;
+ QuestionReferBitField = TRUE;
+ }
+ break;
+
+ //
+ // Scope End
+ //
+ case EFI_IFR_END_OP:
+ QuestionReferBitField = FALSE;
+ Status = PopScope (&ScopeOpCode);
+ if (EFI_ERROR (Status)) {
+ ResetScopeStack ();
+ return Status;
+ }
+
+ //
+ // Parent statement end tag found, update ParentStatement info.
+ //
+ if (IsStatementOpCode(ScopeOpCode) && (ParentStatement != NULL) && (ParentStatement->Operand == ScopeOpCode)) {
+ ParentStatement = ParentStatement->ParentStatement;
+ }
+
+ switch (ScopeOpCode) {
+ case EFI_IFR_FORM_SET_OP:
+ //
+ // End of FormSet, update FormSet IFR binary length
+ // to stop parsing substantial OpCodes
+ //
+ FormSet->IfrBinaryLength = OpCodeOffset;
+ break;
+
+ case EFI_IFR_FORM_OP:
+ case EFI_IFR_FORM_MAP_OP:
+ //
+ // End of Form
+ //
+ CurrentForm = NULL;
+ SuppressForQuestion = FALSE;
+ break;
+
+ case EFI_IFR_ONE_OF_OPTION_OP:
+ //
+ // End of Option
+ //
+ CurrentOption = NULL;
+ break;
+
+ case EFI_IFR_NO_SUBMIT_IF_OP:
+ case EFI_IFR_INCONSISTENT_IF_OP:
+ case EFI_IFR_WARNING_IF_OP:
+ //
+ // Ignore end of EFI_IFR_NO_SUBMIT_IF and EFI_IFR_INCONSISTENT_IF
+ //
+ break;
+
+ case EFI_IFR_SUPPRESS_IF_OP:
+ if (SuppressForOption) {
+ PopConditionalExpression(ExpressOption);
+ } else if (SuppressForQuestion) {
+ PopConditionalExpression(ExpressStatement);
+ } else {
+ PopConditionalExpression(ExpressForm);
+ }
+ break;
+
+ case EFI_IFR_GRAY_OUT_IF_OP:
+ PopConditionalExpression(ExpressStatement);
+ break;
+
+ case EFI_IFR_DISABLE_IF_OP:
+ if (CurrentForm != NULL) {
+ PopConditionalExpression(ExpressStatement);
+ }
+ InScopeDisable = FALSE;
+ OpCodeDisabled = FALSE;
+ break;
+
+ case EFI_IFR_ONE_OF_OP:
+ case EFI_IFR_ORDERED_LIST_OP:
+ SuppressForOption = FALSE;
+ break;
+
+ case EFI_IFR_DEFAULT_OP:
+ InScopeDefault = FALSE;
+ break;
+
+ case EFI_IFR_MAP_OP:
+
+ //
+ // Get current Map Expression List.
+ //
+ Status = PopMapExpressionList ((VOID **) &MapExpressionList);
+ if (Status == EFI_ACCESS_DENIED) {
+ MapExpressionList = NULL;
+ }
+ //
+ // Get current expression.
+ //
+ Status = PopCurrentExpression ((VOID **) &CurrentExpression);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (MapScopeDepth > 0) {
+ MapScopeDepth --;
+ }
+ break;
+
+ default:
+
+ if (IsExpressionOpCode (ScopeOpCode)) {
+ if (InScopeDisable && CurrentForm == NULL) {
+
+ //
+ // This is DisableIf expression for Form, it should be a constant expression
+ //
+ Status = EvaluateHiiExpression (FormSet, CurrentForm, CurrentExpression);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ OpCodeDisabled = IsTrue (&CurrentExpression->Result);
+
+ //
+ // DisableIf Expression is only used once and not queued, free it
+ //
+ DestroyExpression (CurrentExpression);
+ }
+
+ //
+ // End of current Expression
+ //
+ CurrentExpression = NULL;
+ }
+ break;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ if (IsStatementOpCode(Operand)) {
+ CurrentStatement->ParentStatement = ParentStatement;
+ if (Scope != 0) {
+ //
+ // Scope != 0, other statements or options may nest in this statement.
+ // Update the ParentStatement info.
+ //
+ ParentStatement = CurrentStatement;
+ }
+ }
+ }
+
+ return EFI_SUCCESS;
+}
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c
new file mode 100644
index 00000000000..55b78315d1d
--- /dev/null
+++ b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c
@@ -0,0 +1,5045 @@
+/** @file
+ Definitinos of RedfishPlatformConfigLib
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "HiiInternal.h"
+
+CHAR16 *mUnknownString = L"!";
+CHAR16 *gEmptyString = L"";
+
+EFI_HII_VALUE *mExpressionEvaluationStack = NULL;
+EFI_HII_VALUE *mExpressionEvaluationStackEnd = NULL;
+EFI_HII_VALUE *mExpressionEvaluationStackPointer = NULL;
+UINTN mExpressionEvaluationStackOffset = 0;
+
+//
+// Unicode collation protocol interface
+//
+EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollation = NULL;
+EFI_USER_MANAGER_PROTOCOL *mUserManager = NULL;
+
+
+/**
+ Allocate new memory and then copy the Unicode string Source to Destination.
+
+ @param Dest Location to copy string
+ @param Src String to copy
+
+**/
+VOID
+NewStringCpy (
+ IN OUT CHAR16 **Dest,
+ IN CHAR16 *Src
+ )
+{
+ if (*Dest != NULL) {
+ FreePool (*Dest);
+ }
+ *Dest = AllocateCopyPool (StrSize (Src), Src);
+}
+
+/**
+ Set Value of given Name in a NameValue Storage.
+
+ @param Storage The NameValue Storage.
+ @param Name The Name.
+ @param Value The Value to set.
+ @param ReturnNode The node use the input name.
+
+ @retval EFI_SUCCESS Value found for given Name.
+ @retval EFI_NOT_FOUND No such Name found in NameValue storage.
+
+**/
+EFI_STATUS
+SetValueByName (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *Name,
+ IN CHAR16 *Value,
+ OUT HII_NAME_VALUE_NODE **ReturnNode
+ )
+{
+ LIST_ENTRY *Link;
+ HII_NAME_VALUE_NODE *Node;
+ CHAR16 *Buffer;
+
+ Link = GetFirstNode (&Storage->NameValueList);
+ while (!IsNull (&Storage->NameValueList, Link)) {
+ Node = HII_NAME_VALUE_NODE_FROM_LINK (Link);
+
+ if (StrCmp (Name, Node->Name) == 0) {
+
+ Buffer = Node->Value;
+ if (Buffer != NULL) {
+ FreePool (Buffer);
+ }
+ Buffer = AllocateCopyPool (StrSize (Value), Value);
+ if (Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Node->Value = Buffer;
+
+ if (ReturnNode != NULL) {
+ *ReturnNode = Node;
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ Link = GetNextNode (&Storage->NameValueList, Link);
+ }
+
+ return EFI_NOT_FOUND;
+}
+
+
+/**
+ Get bit field value from the buffer and then set the value for the question.
+ Note: Data type UINT32 can cover all the bit field value.
+
+ @param Question The question refer to bit field.
+ @param Buffer Point to the buffer which the question value get from.
+ @param QuestionValue The Question Value retrieved from Bits.
+
+**/
+VOID
+GetBitsQuestionValue (
+ IN HII_STATEMENT *Question,
+ IN UINT8 *Buffer,
+ OUT HII_STATEMENT_VALUE *QuestionValue
+ )
+{
+ UINTN StartBit;
+ UINTN EndBit;
+ UINT32 RetVal;
+ UINT32 BufferValue;
+
+ StartBit = Question->BitVarOffset % 8;
+ EndBit = StartBit + Question->BitStorageWidth - 1;
+
+ CopyMem ((UINT8 *) &BufferValue, Buffer, Question->StorageWidth);
+
+ RetVal = BitFieldRead32 (BufferValue, StartBit, EndBit);
+
+ //
+ // Set question value.
+ // Note: Since Question with BufferValue (orderedlist, password, string)are not supported to refer bit field.
+ // Only oneof/checkbox/oneof can support bit field.So we can copy the value to the Hiivalue of Question directly.
+ //
+ CopyMem ((UINT8 *) &QuestionValue->Value, (UINT8 *) &RetVal, Question->StorageWidth);
+}
+
+/**
+ Set bit field value to the buffer.
+ Note: Data type UINT32 can cover all the bit field value.
+
+ @param Question The question refer to bit field.
+ @param Buffer Point to the buffer which the question value set to.
+ @param Value The bit field value need to set.
+
+**/
+VOID
+SetBitsQuestionValue (
+ IN HII_STATEMENT *Question,
+ IN OUT UINT8 *Buffer,
+ IN UINT32 Value
+ )
+{
+ UINT32 Operand;
+ UINTN StartBit;
+ UINTN EndBit;
+ UINT32 RetVal;
+
+ StartBit = Question->BitVarOffset % 8;
+ EndBit = StartBit + Question->BitStorageWidth - 1;
+
+ CopyMem ((UINT8*) &Operand, Buffer, Question->StorageWidth);
+ RetVal = BitFieldWrite32 (Operand, StartBit, EndBit, Value);
+ CopyMem (Buffer, (UINT8*) &RetVal, Question->StorageWidth);
+}
+
+/**
+ Convert the buffer value to HiiValue.
+
+ @param Question The question.
+ @param Value Unicode buffer save the question value.
+ @param QuestionValue The Question Value retrieved from Buffer.
+
+ @retval Status whether convert the value success.
+
+**/
+EFI_STATUS
+BufferToValue (
+ IN HII_STATEMENT *Question,
+ IN CHAR16 *Value,
+ OUT HII_STATEMENT_VALUE *QuestionValue
+ )
+{
+ CHAR16 *StringPtr;
+ BOOLEAN IsBufferStorage;
+ CHAR16 *DstBuf;
+ CHAR16 TempChar;
+ UINTN LengthStr;
+ UINT8 *Dst;
+ CHAR16 TemStr[5];
+ UINTN Index;
+ UINT8 DigitUint8;
+ BOOLEAN IsString;
+ UINTN Length;
+ EFI_STATUS Status;
+ UINT8 *Buffer;
+
+ Buffer = NULL;
+
+ IsString = (BOOLEAN) ((QuestionValue->Type == EFI_IFR_TYPE_STRING) ? TRUE : FALSE);
+ if (Question->Storage->Type == EFI_HII_VARSTORE_BUFFER ||
+ Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
+ IsBufferStorage = TRUE;
+ } else {
+ IsBufferStorage = FALSE;
+ }
+
+ //
+ // Question Value is provided by Buffer Storage or NameValue Storage
+ //
+ if (QuestionValue->Type == EFI_IFR_TYPE_STRING || QuestionValue->Type == EFI_IFR_TYPE_BUFFER) {
+ //
+ // This Question is password or orderedlist
+ //
+ if (QuestionValue->Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Dst = QuestionValue->Buffer;
+ } else {
+ //
+ // Other type of Questions
+ //
+ if (Question->QuestionReferToBitField) {
+ Buffer = (UINT8 *)AllocateZeroPool (Question->StorageWidth);
+ if (Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Dst = Buffer;
+ } else {
+ Dst = (UINT8 *) &QuestionValue->Value;
+ }
+ }
+
+ //
+ // Temp cut at the end of this section, end with '\0' or '&'.
+ //
+ StringPtr = Value;
+ while (*StringPtr != L'\0' && *StringPtr != L'&') {
+ StringPtr++;
+ }
+ TempChar = *StringPtr;
+ *StringPtr = L'\0';
+
+ LengthStr = StrLen (Value);
+
+ //
+ // Value points to a Unicode hexadecimal string, we need to convert the string to the value with CHAR16/UINT8...type.
+ // When generating the Value string, we follow this rule: 1 byte -> 2 Unicode characters (for string: 2 byte(CHAR16) ->4 Unicode characters).
+ // So the maximum value string length of a question is : Question->StorageWidth * 2.
+ // If the value string length > Question->StorageWidth * 2, only set the string length as Question->StorageWidth * 2, then convert.
+ //
+ if (LengthStr > (UINTN) Question->StorageWidth * 2) {
+ Length = (UINTN) Question->StorageWidth * 2;
+ } else {
+ Length = LengthStr;
+ }
+
+ Status = EFI_SUCCESS;
+ if (!IsBufferStorage && IsString) {
+ //
+ // Convert Config String to Unicode String, e.g "0041004200430044" => "ABCD"
+ // Add string tail char L'\0' into Length
+ //
+ DstBuf = (CHAR16 *) Dst;
+ ZeroMem (TemStr, sizeof (TemStr));
+ for (Index = 0; Index < Length; Index += 4) {
+ StrnCpyS (TemStr, sizeof (TemStr) / sizeof (CHAR16), Value + Index, 4);
+ DstBuf[Index/4] = (CHAR16) StrHexToUint64 (TemStr);
+ }
+ //
+ // Add tailing L'\0' character
+ //
+ DstBuf[Index/4] = L'\0';
+ } else {
+ ZeroMem (TemStr, sizeof (TemStr));
+ for (Index = 0; Index < Length; Index ++) {
+ TemStr[0] = Value[LengthStr - Index - 1];
+ DigitUint8 = (UINT8) StrHexToUint64 (TemStr);
+ if ((Index & 1) == 0) {
+ Dst [Index/2] = DigitUint8;
+ } else {
+ Dst [Index/2] = (UINT8) ((DigitUint8 << 4) + Dst [Index/2]);
+ }
+ }
+ }
+
+ *StringPtr = TempChar;
+
+ if (Buffer != NULL && Question->QuestionReferToBitField) {
+ GetBitsQuestionValue (Question, Buffer, QuestionValue);
+ FreePool (Buffer);
+ }
+
+ return Status;
+}
+
+/**
+ Get the string based on the StringId and HII Package List Handle.
+
+ @param Token The String's ID.
+ @param HiiHandle The package list in the HII database to search for
+ the specified string.
+
+ @return The output string.
+
+**/
+CHAR16*
+GetToken (
+ IN EFI_STRING_ID Token,
+ IN EFI_HII_HANDLE HiiHandle
+ )
+{
+ EFI_STRING String;
+
+ if (HiiHandle == NULL) {
+ return NULL;
+ }
+
+ String = HiiGetString (HiiHandle, Token, NULL);
+ if (String == NULL) {
+ String = AllocateCopyPool (StrSize (mUnknownString), mUnknownString);
+ if (String == NULL) {
+ return NULL;
+ }
+
+ }
+ return (CHAR16 *) String;
+}
+
+/**
+ Converts the unicode character of the string from uppercase to lowercase.
+ This is a internal function.
+
+ @param ConfigString String to be converted
+
+**/
+VOID
+EFIAPI
+HiiToLower (
+ IN EFI_STRING ConfigString
+ )
+{
+ EFI_STRING String;
+ BOOLEAN Lower;
+
+ //
+ // Convert all hex digits in range [A-F] in the configuration header to [a-f]
+ //
+ for (String = ConfigString, Lower = FALSE; *String != L'\0'; String++) {
+ if (*String == L'=') {
+ Lower = TRUE;
+ } else if (*String == L'&') {
+ Lower = FALSE;
+ } else if (Lower && *String >= L'A' && *String <= L'F') {
+ *String = (CHAR16) (*String - L'A' + L'a');
+ }
+ }
+}
+
+/**
+ Evaluate if the result is a non-zero value.
+
+ @param Result The result to be evaluated.
+
+ @retval TRUE It is a non-zero value.
+ @retval FALSE It is a zero value.
+
+**/
+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;
+ }
+}
+
+/**
+ Set a new string to string package.
+
+ @param[in] String A pointer to the Null-terminated Unicode string
+ to add or update in the String Package associated
+ with HiiHandle.
+ @param[in] HiiHandle A handle that was previously registered in the
+ HII Database.
+
+ @return the Id for this new string.
+
+**/
+EFI_STRING_ID
+NewString (
+ IN CHAR16 *String,
+ IN EFI_HII_HANDLE HiiHandle
+ )
+{
+ EFI_STRING_ID StringId;
+
+ StringId = HiiSetString (HiiHandle, 0, String, NULL);
+ return StringId;
+}
+
+/**
+ Perform nosubmitif check for a Form.
+
+ @param FormSet FormSet data structure.
+ @param Form Form data structure.
+ @param Question The Question to be validated.
+
+ @retval EFI_SUCCESS Form validation pass.
+ @retval other Form validation failed.
+
+**/
+EFI_STATUS
+ValidateNoSubmit (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN HII_STATEMENT *Question
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ LIST_ENTRY *ListHead;
+ HII_EXPRESSION *Expression;
+
+ ListHead = &Question->NoSubmitListHead;
+ Link = GetFirstNode (ListHead);
+ while (!IsNull (ListHead, Link)) {
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+
+ //
+ // Evaluate the expression
+ //
+ Status = EvaluateHiiExpression (FormSet, Form, Expression);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (IsTrue (&Expression->Result)) {
+ return EFI_NOT_READY;
+ }
+
+ Link = GetNextNode (ListHead, Link);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Perform NoSubmit check for each Form in FormSet.
+
+ @param FormSet FormSet data structure.
+ @param CurrentForm Current input form data structure.
+ @param Statement The statement for this check.
+
+ @retval EFI_SUCCESS Form validation pass.
+ @retval other Form validation failed.
+
+**/
+EFI_STATUS
+NoSubmitCheck (
+ IN HII_FORMSET *FormSet,
+ IN OUT HII_FORM **CurrentForm,
+ OUT HII_STATEMENT **Statement
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ HII_STATEMENT *Question;
+ HII_FORM *Form;
+ LIST_ENTRY *LinkForm;
+
+ LinkForm = GetFirstNode (&FormSet->FormListHead);
+ while (!IsNull (&FormSet->FormListHead, LinkForm)) {
+ Form = HII_FORM_FROM_LINK (LinkForm);
+ LinkForm = GetNextNode (&FormSet->FormListHead, LinkForm);
+
+ if (*CurrentForm != NULL && *CurrentForm != Form) {
+ continue;
+ }
+
+ Link = GetFirstNode (&Form->StatementListHead);
+ while (!IsNull (&Form->StatementListHead, Link)) {
+ Question = HII_STATEMENT_FROM_LINK (Link);
+ Status = ValidateNoSubmit (FormSet, Form, Question);
+ if (EFI_ERROR (Status)) {
+ if (*CurrentForm == NULL) {
+ *CurrentForm = Form;
+ }
+ if (Statement != NULL) {
+ *Statement = Question;
+ }
+ return Status;
+ }
+
+ Link = GetNextNode (&Form->StatementListHead, Link);
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Allocate new memory and concatinate Source on the end of Destination.
+
+ @param Dest String to added to the end of.
+ @param Src String to concatinate.
+
+**/
+VOID
+NewStringCat (
+ IN OUT CHAR16 **Dest,
+ IN CHAR16 *Src
+ )
+{
+ CHAR16 *NewString;
+ UINTN MaxLen;
+
+ if (*Dest == NULL) {
+
+ NewStringCpy (Dest, Src);
+ return;
+ }
+
+ MaxLen = (StrSize (*Dest) + StrSize (Src) - 2) / sizeof (CHAR16);
+ NewString = AllocatePool (MaxLen * sizeof (CHAR16));
+ if (NewString == NULL) {
+ return;
+ }
+
+ StrCpyS (NewString, MaxLen, *Dest);
+ StrCatS (NewString, MaxLen, Src);
+
+ FreePool (*Dest);
+ *Dest = NewString;
+}
+
+
+/**
+ Convert setting of Buffer Storage or NameValue Storage to <ConfigResp>.
+
+ @param Storage The Storage to be conveted.
+ @param ConfigResp The returned <ConfigResp>.
+ @param ConfigRequest The ConfigRequest string.
+
+ @retval EFI_SUCCESS Convert success.
+ @retval EFI_INVALID_PARAMETER Incorrect storage type.
+
+**/
+EFI_STATUS
+StorageToConfigResp (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 **ConfigResp,
+ IN CHAR16 *ConfigRequest
+ )
+{
+ EFI_STATUS Status;
+ EFI_STRING Progress;
+ LIST_ENTRY *Link;
+ HII_NAME_VALUE_NODE *Node;
+ UINT8 *SourceBuf;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+ EFI_STRING TempConfigRequest;
+ UINTN RequestStrSize;
+
+ Status = EFI_SUCCESS;
+
+ if (Storage->ConfigHdr == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (ConfigRequest != NULL) {
+
+ TempConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
+ if (TempConfigRequest == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ } else {
+
+ RequestStrSize = (StrLen (Storage->ConfigHdr) + StrLen (Storage->ConfigRequest) + 1) * sizeof (CHAR16);
+ TempConfigRequest = AllocatePool (RequestStrSize);
+ if (TempConfigRequest == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ UnicodeSPrint (
+ TempConfigRequest,
+ RequestStrSize,
+ L"%s%s",
+ Storage->ConfigHdr,
+ Storage->ConfigRequest
+ );
+ }
+
+ switch (Storage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **) &HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ SourceBuf = Storage->Buffer;
+ Status = HiiConfigRouting->BlockToConfig (
+ HiiConfigRouting,
+ TempConfigRequest,
+ SourceBuf,
+ Storage->Size,
+ ConfigResp,
+ &Progress
+ );
+ break;
+
+ case EFI_HII_VARSTORE_NAME_VALUE:
+
+ *ConfigResp = NULL;
+ NewStringCat (ConfigResp, Storage->ConfigHdr);
+
+ Link = GetFirstNode (&Storage->NameValueList);
+ while (!IsNull (&Storage->NameValueList, Link)) {
+ Node = HII_NAME_VALUE_NODE_FROM_LINK (Link);
+
+ if (StrStr (TempConfigRequest, Node->Name) != NULL) {
+ NewStringCat (ConfigResp, L"&");
+ NewStringCat (ConfigResp, Node->Name);
+ NewStringCat (ConfigResp, L"=");
+ NewStringCat (ConfigResp, Node->Value);
+ }
+ Link = GetNextNode (&Storage->NameValueList, Link);
+ }
+ break;
+
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ default:
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ }
+
+ return Status;
+}
+
+
+/**
+ Convert <ConfigResp> to settings in Buffer Storage or NameValue Storage.
+
+ @param Storage The Storage to receive the settings.
+ @param ConfigResp The <ConfigResp> to be converted.
+
+ @retval EFI_SUCCESS Convert success.
+ @retval EFI_INVALID_PARAMETER Incorrect storage type.
+
+**/
+EFI_STATUS
+ConfigRespToStorage (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *ConfigResp
+ )
+{
+ EFI_STATUS Status;
+ EFI_STRING Progress;
+ UINTN BufferSize;
+ CHAR16 *StrPtr;
+ CHAR16 *Name;
+ CHAR16 *Value;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+
+ Status = EFI_SUCCESS;
+
+ switch (Storage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **) &HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ BufferSize = Storage->Size;
+ Status = HiiConfigRouting->ConfigToBlock (
+ HiiConfigRouting,
+ ConfigResp,
+ Storage->Buffer,
+ &BufferSize,
+ &Progress
+ );
+ break;
+
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ StrPtr = StrStr (ConfigResp, L"PATH");
+ if (StrPtr == NULL) {
+ break;
+ }
+ StrPtr = StrStr (ConfigResp, L"&");
+ while (StrPtr != NULL) {
+ //
+ // Skip '&'
+ //
+ StrPtr = StrPtr + 1;
+ Name = StrPtr;
+ StrPtr = StrStr (StrPtr, L"=");
+ if (StrPtr == NULL) {
+ break;
+ }
+ *StrPtr = 0;
+
+ //
+ // Skip '='
+ //
+ StrPtr = StrPtr + 1;
+ Value = StrPtr;
+ StrPtr = StrStr (StrPtr, L"&");
+ if (StrPtr != NULL) {
+ *StrPtr = 0;
+ }
+ SetValueByName (Storage, Name, Value, NULL);
+ }
+ break;
+
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ default:
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ }
+
+ return Status;
+}
+
+/**
+ Fetch the Ifr binary data of a FormSet.
+
+ @param Handle PackageList Handle
+ @param FormSetGuid On input, GUID or class GUID of a formset. If not
+ specified (NULL or zero GUID), take the first
+ FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
+ found in package list.
+ On output, GUID of the formset found(if not NULL).
+ @param BinaryLength The length of the FormSet IFR binary.
+ @param BinaryData The buffer designed to receive the FormSet.
+
+ @retval EFI_SUCCESS Buffer filled with the requested FormSet.
+ BufferLength was updated.
+ @retval EFI_INVALID_PARAMETER The handle is unknown.
+ @retval EFI_NOT_FOUND A form or FormSet on the requested handle cannot
+ be found with the requested FormId.
+
+**/
+EFI_STATUS
+GetIfrBinaryData (
+ IN EFI_HII_HANDLE Handle,
+ IN OUT EFI_GUID *FormSetGuid,
+ OUT UINTN *BinaryLength,
+ OUT UINT8 **BinaryData
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
+ UINTN BufferSize;
+ UINT8 *Package;
+ UINT8 *OpCodeData;
+ UINT32 Offset;
+ UINT32 Offset2;
+ UINT32 PackageListLength;
+ EFI_HII_PACKAGE_HEADER PackageHeader;
+ UINT8 Index;
+ UINT8 NumberOfClassGuid;
+ BOOLEAN ClassGuidMatch;
+ EFI_GUID *ClassGuid;
+ EFI_GUID *ComparingGuid;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+
+ OpCodeData = NULL;
+ Package = NULL;
+ ZeroMem (&PackageHeader, sizeof (EFI_HII_PACKAGE_HEADER));
+
+ //
+ // if FormSetGuid is NULL or zero GUID, return first Setup FormSet in the package list
+ //
+ if (FormSetGuid == NULL) {
+ ComparingGuid = &gZeroGuid;
+ } else {
+ ComparingGuid = FormSetGuid;
+ }
+
+ //
+ // Get HII PackageList
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ (VOID **) &HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ *BinaryData = NULL;
+ return Status;
+ }
+
+ BufferSize = 0;
+ HiiPackageList = NULL;
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+
+ HiiPackageList = AllocatePool (BufferSize);
+ if (HiiPackageList == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
+ }
+ if (EFI_ERROR (Status)) {
+ if (HiiPackageList != NULL) {
+ FreePool (HiiPackageList);
+ }
+ *BinaryData = NULL;
+ return Status;
+ }
+
+ //
+ // Get Form package from this HII package List
+ //
+ Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ Offset2 = 0;
+ CopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
+
+ ClassGuidMatch = FALSE;
+ while (Offset < PackageListLength) {
+
+ Package = ((UINT8 *) HiiPackageList) + Offset;
+ CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
+
+ if (PackageHeader.Type == EFI_HII_PACKAGE_FORMS) {
+ //
+ // Search FormSet in this Form Package
+ //
+
+ Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
+ while (Offset2 < PackageHeader.Length) {
+ OpCodeData = Package + Offset2;
+
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
+ //
+ // Try to compare against formset GUID
+ //
+
+ if (IsZeroGuid (FormSetGuid) ||
+ CompareGuid (ComparingGuid, (EFI_GUID *) (OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
+ break;
+ }
+
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->Length > OFFSET_OF (EFI_IFR_FORM_SET, Flags)) {
+ //
+ // Try to compare against formset class GUID
+ //
+ NumberOfClassGuid = (UINT8) (((EFI_IFR_FORM_SET *) OpCodeData)->Flags & 0x3);
+ ClassGuid = (EFI_GUID *) (OpCodeData + sizeof (EFI_IFR_FORM_SET));
+ for (Index = 0; Index < NumberOfClassGuid; Index++) {
+ if (CompareGuid (ComparingGuid, ClassGuid + Index)) {
+ ClassGuidMatch = TRUE;
+ break;
+ }
+ }
+ if (ClassGuidMatch) {
+ break;
+ }
+ } else if (ComparingGuid == &gEfiHiiPlatformSetupFormsetGuid) {
+ ClassGuidMatch = TRUE;
+ break;
+ }
+ }
+
+ Offset2 += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
+ }
+
+ if (Offset2 < PackageHeader.Length) {
+ //
+ // Target formset found
+ //
+ break;
+ }
+ }
+
+ Offset += PackageHeader.Length;
+ }
+
+ if (Offset >= PackageListLength) {
+ //
+ // Form package not found in this Package List
+ //
+ FreePool (HiiPackageList);
+ *BinaryData = NULL;
+ return EFI_NOT_FOUND;
+ }
+
+ if (FormSetGuid != NULL) {
+ //
+ // Return the FormSet GUID
+ //
+ CopyMem (FormSetGuid, &((EFI_IFR_FORM_SET *) OpCodeData)->Guid, sizeof (EFI_GUID));
+ }
+
+ //
+ // To determine the length of a whole FormSet IFR binary, one have to parse all the Opcodes
+ // in this FormSet; So, here just simply copy the data from start of a FormSet to the end
+ // of the Form Package.
+ //
+
+ *BinaryLength = PackageHeader.Length - Offset2;
+ *BinaryData = AllocateCopyPool (*BinaryLength, OpCodeData);
+ FreePool (HiiPackageList);
+ if (*BinaryData == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Check if the requested element is in storage.
+
+ @param Storage The storage contains elements.
+ @param RequestElement The element to be searched.
+
+**/
+BOOLEAN
+ElementValidation (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *RequestElement
+ )
+{
+ return StrStr (Storage->ConfigRequest, RequestElement) != NULL ? TRUE : FALSE;
+}
+
+/**
+ Append the Request element to the Config Request.
+
+ @param ConfigRequest Current ConfigRequest info.
+ @param SpareStrLen Current remain free buffer for config reqeust.
+ @param RequestElement New Request element.
+
+**/
+VOID
+AppendConfigRequest (
+ IN OUT CHAR16 **ConfigRequest,
+ IN OUT UINTN *SpareStrLen,
+ IN CHAR16 *RequestElement
+ )
+{
+ CHAR16 *NewStr;
+ UINTN StringSize;
+ UINTN StrLength;
+ UINTN MaxLen;
+
+ StrLength = StrLen (RequestElement);
+ StringSize = (*ConfigRequest != NULL) ? StrSize (*ConfigRequest) : sizeof (CHAR16);
+ MaxLen = StringSize / sizeof (CHAR16) + *SpareStrLen;
+
+ //
+ // Append <RequestElement> to <ConfigRequest>
+ //
+ if (StrLength > *SpareStrLen) {
+ //
+ // Old String buffer is not sufficient for RequestElement, allocate a new one
+ //
+ MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL;
+ NewStr = AllocatePool (MaxLen * sizeof (CHAR16));
+ if (NewStr == NULL) {
+ return;
+ }
+
+ if (*ConfigRequest != NULL) {
+ CopyMem (NewStr, *ConfigRequest, StringSize);
+ FreePool (*ConfigRequest);
+ } else {
+ NewStr[0] = L'\0';
+ }
+ *ConfigRequest = NewStr;
+ *SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
+ }
+
+ StrCatS (*ConfigRequest, MaxLen, RequestElement);
+ *SpareStrLen -= StrLength;
+}
+
+
+/**
+ Adjust the config request info, remove the request elements which already in AllConfigRequest string.
+
+ @param Storage Form set Storage.
+ @param Request The input request string.
+ @param RespString Whether the input is ConfigRequest or ConfigResp format.
+
+ @retval TRUE Has element not covered by current used elements, need to continue to call ExtractConfig
+ @retval FALSE All elements covered by current used elements.
+
+**/
+BOOLEAN
+ConfigRequestAdjust (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *Request,
+ IN BOOLEAN RespString
+ )
+{
+ CHAR16 *RequestElement;
+ CHAR16 *NextRequestElement;
+ CHAR16 *NextElementBakup;
+ CHAR16 *SearchKey;
+ CHAR16 *ValueKey;
+ BOOLEAN RetVal;
+ CHAR16 *ConfigRequest;
+
+ RetVal = FALSE;
+ NextElementBakup = NULL;
+ ValueKey = NULL;
+
+ if (Request != NULL) {
+ ConfigRequest = Request;
+ } else {
+ ConfigRequest = Storage->ConfigRequest;
+ }
+
+ if (Storage->ConfigRequest == NULL) {
+
+ Storage->ConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
+ if (Storage->ConfigRequest == NULL) {
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
+ //
+ // "&Name1&Name2" section for EFI_HII_VARSTORE_NAME_VALUE storage
+ //
+ SearchKey = L"&";
+ } else {
+ //
+ // "&OFFSET=####&WIDTH=####" section for EFI_HII_VARSTORE_BUFFER storage
+ //
+ SearchKey = L"&OFFSET";
+ ValueKey = L"&VALUE";
+ }
+
+ //
+ // Find SearchKey storage
+ //
+ if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
+
+ RequestElement = StrStr (ConfigRequest, L"PATH");
+ if (RequestElement == NULL) {
+ return FALSE;
+ }
+ RequestElement = StrStr (RequestElement, SearchKey);
+ } else {
+ RequestElement = StrStr (ConfigRequest, SearchKey);
+ }
+
+ while (RequestElement != NULL) {
+
+ //
+ // +1 to avoid find header itself.
+ //
+ NextRequestElement = StrStr (RequestElement + 1, SearchKey);
+
+ //
+ // The last Request element in configRequest string.
+ //
+ if (NextRequestElement != NULL) {
+ if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
+
+ NextElementBakup = NextRequestElement;
+ NextRequestElement = StrStr (RequestElement, ValueKey);
+ if (NextRequestElement == NULL) {
+ return FALSE;
+ }
+ }
+ //
+ // Replace "&" with '\0'.
+ //
+ *NextRequestElement = L'\0';
+ } else {
+ if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
+
+ NextElementBakup = NextRequestElement;
+ NextRequestElement = StrStr (RequestElement, ValueKey);
+ if (NextRequestElement == NULL) {
+ return FALSE;
+ }
+
+ //
+ // Replace "&" with '\0'.
+ //
+ *NextRequestElement = L'\0';
+ }
+ }
+
+ if (!ElementValidation (Storage, RequestElement)) {
+ //
+ // Add this element to the Storage->BrowserStorage->AllRequestElement.
+ //
+ AppendConfigRequest (&Storage->ConfigRequest, &Storage->SpareStrLen, RequestElement);
+ RetVal = TRUE;
+ }
+
+ if (NextRequestElement != NULL) {
+ //
+ // Restore '&' with '\0' for later used.
+ //
+ *NextRequestElement = L'&';
+ }
+
+ if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
+ RequestElement = NextElementBakup;
+ } else {
+ RequestElement = NextRequestElement;
+ }
+ }
+
+ return RetVal;
+}
+
+
+/**
+ Fill storage with settings requested from Configuration Driver.
+
+ @param FormSet FormSet data structure.
+ @param Storage Buffer Storage.
+
+**/
+VOID
+LoadStorage (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORMSET_STORAGE *Storage
+ )
+{
+ EFI_STATUS Status;
+ EFI_STRING Progress;
+ EFI_STRING Result;
+ CHAR16 *StrPtr;
+ EFI_STRING ConfigRequest;
+ UINTN RequestStrSize;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+
+ ConfigRequest = NULL;
+
+ switch (Storage->Type) {
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ return;
+
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+#if 0 // bug fix for efivarstore
+ if (Storage->ConfigRequest != NULL) {
+ ConfigRequestAdjust (Storage, Storage->ConfigRequest, FALSE);
+ return;
+ }
+#endif
+ break;
+
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ //
+ // Skip if there is no RequestElement.
+ //
+ if (Storage->ElementCount == 0) {
+ return;
+ }
+ break;
+
+ default:
+ return;
+ }
+
+ if (Storage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
+ //
+ // Create the config request string to get all fields for this storage.
+ // Allocate and fill a buffer large enough to hold the <ConfigHdr> template
+ // followed by "&OFFSET=0&WIDTH=WWWW"followed by a Null-terminator
+ //
+ RequestStrSize = StrSize (Storage->ConfigHdr) + 20 * sizeof (CHAR16);
+ ConfigRequest = AllocatePool (RequestStrSize);
+ if (ConfigRequest == NULL) {
+ return;
+ }
+
+ UnicodeSPrint (
+ ConfigRequest,
+ RequestStrSize,
+ L"%s&OFFSET=0&WIDTH=%04x",
+ Storage->ConfigHdr,
+ Storage->Size);
+ } else {
+
+ RequestStrSize = (StrLen (Storage->ConfigHdr) + StrLen (Storage->ConfigRequest) + 1) * sizeof (CHAR16);
+ ConfigRequest = AllocatePool (RequestStrSize);
+ if (ConfigRequest == NULL) {
+ return;
+ }
+
+ UnicodeSPrint (
+ ConfigRequest,
+ RequestStrSize,
+ L"%s%s",
+ Storage->ConfigHdr,
+ Storage->ConfigRequest);
+ }
+
+ //
+ // Request current settings from Configuration Driver
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **) &HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return;
+ }
+ Status = HiiConfigRouting->ExtractConfig (
+ HiiConfigRouting,
+ ConfigRequest,
+ &Progress,
+ &Result
+ );
+ if (!EFI_ERROR (Status)) {
+
+ //
+ // Convert Result from <ConfigAltResp> to <ConfigResp>
+ //
+ StrPtr = StrStr (Result, L"&GUID=");
+ if (StrPtr != NULL) {
+ *StrPtr = L'\0';
+ }
+
+ Status = ConfigRespToStorage (Storage, Result);
+ FreePool (Result);
+ }
+
+ Storage->ConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
+ if (Storage->ConfigRequest == NULL) {
+
+ if (ConfigRequest != NULL) {
+ FreePool (ConfigRequest);
+ }
+ return;
+ }
+
+ if (Storage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
+ if (ConfigRequest != NULL) {
+ FreePool (ConfigRequest);
+ }
+ }
+}
+
+/**
+ Zero extend integer/boolean/date/time to UINT64 for comparing.
+
+ @param Value HII Value to be converted.
+
+**/
+VOID
+ExtendValueToU64 (
+ IN HII_STATEMENT_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;
+}
+
+
+/**
+ 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
+ );
+
+/**
+ 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
+ );
+
+/**
+ Initialize the internal data structure of a FormSet.
+
+ @param Handle PackageList Handle
+ @param FormSetGuid On input, GUID or class GUID of a formset. If not
+ specified (NULL or zero GUID), take the first
+ FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
+ found in package list.
+ On output, GUID of the formset found(if not NULL).
+ @param FormSet FormSet data structure.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_FOUND The specified FormSet could not be found.
+
+**/
+EFI_STATUS
+CreateFormSetFromHiiHandle (
+ IN EFI_HII_HANDLE Handle,
+ IN OUT EFI_GUID *FormSetGuid,
+ OUT HII_FORMSET *FormSet
+ );
+
+/**
+ Initialize a Formset and get current setting for Questions.
+
+ @param FormSet FormSet data structure.
+
+**/
+VOID
+InitializeFormSet (
+ IN OUT HII_FORMSET *FormSet
+ );
+
+/**
+ Get Value for given Name from a NameValue Storage.
+
+ @param[in] Storage The NameValue Storage.
+ @param[in] Name The Name.
+ @param[in,out] Value The retured Value.
+
+ @retval EFI_SUCCESS Value found for given Name.
+ @retval EFI_NOT_FOUND No such Name found in NameValue storage.
+ @retval EFI_INVALID_PARAMETER Storage or Value is NULL.
+
+**/
+EFI_STATUS
+GetValueByName (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *Name,
+ IN OUT CHAR16 **Value
+ )
+{
+ LIST_ENTRY *Link;
+ HII_NAME_VALUE_NODE *Node;
+
+ if (Storage == NULL || Value == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *Value = NULL;
+
+ Link = GetFirstNode (&Storage->NameValueList);
+ while (!IsNull (&Storage->NameValueList, Link)) {
+ Node = HII_NAME_VALUE_NODE_FROM_LINK (Link);
+
+ if (StrCmp (Name, Node->Name) == 0) {
+ NewStringCpy (Value, Node->Value);
+ return EFI_SUCCESS;
+ }
+
+ Link = GetNextNode (&Storage->NameValueList, Link);
+ }
+
+ return EFI_NOT_FOUND;
+}
+
+/**
+ Get Question's current Value.
+
+ @param[in] FormSet FormSet data structure.
+ @param[in] Form Form data structure.
+ @param[out] Question Question to be initialized.
+ @param[in] GetValueFrom Where to get value, may from editbuffer, buffer or hii driver.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Formset, Form or Question is NULL.
+
+**/
+EFI_STATUS
+GetQuestionValue (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_STATEMENT *Question,
+ IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
+ )
+{
+ EFI_STATUS Status;
+ BOOLEAN Enabled;
+ BOOLEAN Pending;
+ UINT8 *Dst;
+ UINTN StorageWidth;
+ EFI_TIME EfiTime;
+ HII_FORMSET_STORAGE *Storage;
+ HII_FORMSET_STORAGE *FormsetStorage;
+ EFI_IFR_TYPE_VALUE *QuestionValue;
+ CHAR16 *ConfigRequest;
+ CHAR16 *Progress;
+ CHAR16 *Result;
+ CHAR16 *Value;
+ UINTN Length;
+ BOOLEAN IsBufferStorage;
+ UINTN MaxLen;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+
+ if (FormSet == NULL || Form == NULL || Question == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_SUCCESS;
+ Value = NULL;
+ Result = NULL;
+
+ if (GetValueFrom >= GetSetValueWithMax) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Question value is provided by an Expression, evaluate it
+ //
+ if (Question->ValueExpression != NULL) {
+ Status = EvaluateHiiExpression (FormSet, Form, Question->ValueExpression);
+ if (!EFI_ERROR (Status)) {
+ if (Question->ValueExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
+ ASSERT (Question->Value.Type == EFI_IFR_TYPE_BUFFER && Question->Value.Buffer != NULL);
+ if (Question->StorageWidth > Question->ValueExpression->Result.BufferLen) {
+ CopyMem (Question->Value.Buffer, Question->ValueExpression->Result.Buffer, Question->ValueExpression->Result.BufferLen);
+ Question->Value.BufferLen = Question->ValueExpression->Result.BufferLen;
+ } else {
+ CopyMem (Question->Value.Buffer, Question->ValueExpression->Result.Buffer, Question->StorageWidth);
+ Question->Value.BufferLen = Question->StorageWidth;
+ }
+ FreePool (Question->ValueExpression->Result.Buffer);
+ }
+ Question->Value.Type = Question->ValueExpression->Result.Type;
+ CopyMem (&Question->Value.Value, &Question->ValueExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
+ }
+ return Status;
+ }
+
+ //
+ // Get question value by read expression.
+ //
+ if (Question->ReadExpression != NULL && Form->FormType == STANDARD_MAP_FORM_TYPE) {
+ Status = EvaluateHiiExpression (FormSet, Form, Question->ReadExpression);
+ if (!EFI_ERROR (Status) &&
+ ((Question->ReadExpression->Result.Type < EFI_IFR_TYPE_OTHER) || (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER))) {
+ //
+ // Only update question value to the valid result.
+ //
+ if (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
+ ASSERT (Question->Value.Type == EFI_IFR_TYPE_BUFFER && Question->Value.Buffer != NULL);
+ if (Question->StorageWidth > Question->ReadExpression->Result.BufferLen) {
+ CopyMem (Question->Value.Buffer, Question->ReadExpression->Result.Buffer, Question->ReadExpression->Result.BufferLen);
+ Question->Value.BufferLen = Question->ReadExpression->Result.BufferLen;
+ } else {
+ CopyMem (Question->Value.Buffer, Question->ReadExpression->Result.Buffer, Question->StorageWidth);
+ Question->Value.BufferLen = Question->StorageWidth;
+ }
+ FreePool (Question->ReadExpression->Result.Buffer);
+ }
+ Question->Value.Type = Question->ReadExpression->Result.Type;
+ CopyMem (&Question->Value.Value, &Question->ReadExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
+ return EFI_SUCCESS;
+ }
+ }
+
+ //
+ // Question value is provided by RTC
+ //
+ Storage = Question->Storage;
+ QuestionValue = &Question->Value.Value;
+ if (Storage == NULL) {
+ //
+ // It's a Question without storage, or RTC date/time
+ //
+ if (Question->Operand == EFI_IFR_DATE_OP || Question->Operand == EFI_IFR_TIME_OP) {
+ //
+ // Date and time define the same Flags bit
+ //
+ switch (Question->ExtraData.Flags & EFI_QF_DATE_STORAGE) {
+ case QF_DATE_STORAGE_TIME:
+ Status = gRT->GetTime (&EfiTime, NULL);
+ break;
+
+ case QF_DATE_STORAGE_WAKEUP:
+ Status = gRT->GetWakeupTime (&Enabled, &Pending, &EfiTime);
+ break;
+
+ case QF_DATE_STORAGE_NORMAL:
+ default:
+ //
+ // For date/time without storage
+ //
+ return EFI_SUCCESS;
+ }
+
+ if (EFI_ERROR (Status)) {
+ if (Question->Operand == EFI_IFR_DATE_OP){
+ QuestionValue->date.Year = 0xff;
+ QuestionValue->date.Month = 0xff;
+ QuestionValue->date.Day = 0xff;
+ } else {
+ QuestionValue->time.Hour = 0xff;
+ QuestionValue->time.Minute = 0xff;
+ QuestionValue->time.Second = 0xff;
+ }
+ return EFI_SUCCESS;
+ }
+
+ if (Question->Operand == EFI_IFR_DATE_OP) {
+ QuestionValue->date.Year = EfiTime.Year;
+ QuestionValue->date.Month = EfiTime.Month;
+ QuestionValue->date.Day = EfiTime.Day;
+ } else {
+ QuestionValue->time.Hour = EfiTime.Hour;
+ QuestionValue->time.Minute = EfiTime.Minute;
+ QuestionValue->time.Second = EfiTime.Second;
+ }
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Question value is provided by EFI variable
+ //
+ StorageWidth = Question->StorageWidth;
+ if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
+ if (Question->Value.Buffer != NULL) {
+ Dst = Question->Value.Buffer;
+ } else {
+ Dst = (UINT8 *) QuestionValue;
+ }
+
+ Status = gRT->GetVariable (
+ Question->VariableName,
+ &Storage->Guid,
+ NULL,
+ &StorageWidth,
+ Dst
+ );
+ //
+ // Always return success, even this EFI variable doesn't exist
+ //
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Question Value is provided by Buffer Storage or NameValue Storage
+ //
+ if (Question->Value.Buffer != NULL) {
+ //
+ // This Question is password or orderedlist
+ //
+ Dst = Question->Value.Buffer;
+ } else {
+ //
+ // Other type of Questions
+ //
+ Dst = (UINT8 *) &Question->Value.Value;
+ }
+
+ if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
+ Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
+ IsBufferStorage = TRUE;
+ } else {
+ IsBufferStorage = FALSE;
+ }
+ if (GetValueFrom == GetSetValueWithBuffer ) {
+ if (IsBufferStorage) {
+ //
+ // Copy from storage Edit buffer
+ // If the Question refer to bit filed, get the value in the related bit filed.
+ //
+ if (Question->QuestionReferToBitField) {
+ GetBitsQuestionValue (Question, Storage->Buffer + Question->VarStoreInfo.VarOffset, &Question->Value);
+ } else {
+ CopyMem (Dst, Storage->Buffer + Question->VarStoreInfo.VarOffset, StorageWidth);
+ }
+ } else {
+ Value = NULL;
+ Status = GetValueByName (Storage, Question->VariableName, &Value);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ ASSERT (Value != NULL);
+ Status = BufferToValue (Question, Value, &Question->Value);
+ FreePool (Value);
+ }
+ } else {
+ FormsetStorage = GetFstStgFromVarId (FormSet, Question->VarStoreId);
+ ASSERT (FormsetStorage != NULL);
+ //
+ // <ConfigRequest> ::= <ConfigHdr> + <BlockName> ||
+ // <ConfigHdr> + "&" + <VariableName>
+ //
+ if (IsBufferStorage) {
+ Length = StrLen (FormsetStorage->ConfigHdr);
+ Length += StrLen (Question->BlockName);
+ } else {
+ Length = StrLen (FormsetStorage->ConfigHdr);
+ Length += StrLen (Question->VariableName) + 1;
+ }
+ // Allocate buffer include '\0'
+ MaxLen = Length + 1;
+ ConfigRequest = AllocatePool (MaxLen * sizeof (CHAR16));
+ ASSERT (ConfigRequest != NULL);
+
+ StrCpyS (ConfigRequest, MaxLen, FormsetStorage->ConfigHdr);
+ if (IsBufferStorage) {
+ StrCatS (ConfigRequest, MaxLen, Question->BlockName);
+ } else {
+ StrCatS (ConfigRequest, MaxLen, L"&");
+ StrCatS (ConfigRequest, MaxLen, Question->VariableName);
+ }
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **) &HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Request current settings from Configuration Driver
+ //
+ Status = HiiConfigRouting->ExtractConfig (
+ HiiConfigRouting,
+ ConfigRequest,
+ &Progress,
+ &Result
+ );
+ FreePool (ConfigRequest);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Skip <ConfigRequest>
+ //
+ if (IsBufferStorage) {
+ Value = StrStr (Result, L"&VALUE");
+ if (Value == NULL) {
+ FreePool (Result);
+ return EFI_NOT_FOUND;
+ }
+ //
+ // Skip "&VALUE"
+ //
+ Value = Value + 6;
+ } else {
+ Value = Result + Length;
+ }
+ if (*Value != '=') {
+ FreePool (Result);
+ return EFI_NOT_FOUND;
+ }
+ //
+ // Skip '=', point to value
+ //
+ Value = Value + 1;
+
+ Status = BufferToValue (Question, Value, &Question->Value);
+ if (EFI_ERROR (Status)) {
+ FreePool (Result);
+ return Status;
+ }
+
+ //
+ // Synchronize Buffer
+ //
+ if (IsBufferStorage) {
+ CopyMem (Storage->Buffer + Question->VarStoreInfo.VarOffset, Dst, StorageWidth);
+ } else {
+ SetValueByName (Storage, Question->VariableName, Value, NULL);
+ }
+
+ if (Result != NULL) {
+ FreePool (Result);
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Convert the input Unicode character to upper.
+
+ @param[in] String Th Unicode character to be converted.
+
+**/
+VOID
+IfrStrToUpper (
+ IN CHAR16 *String
+ )
+{
+ if (String == NULL) {
+ return;
+ }
+
+ 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[in] 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
+ )
+{
+ if (Value == NULL) {
+ return FALSE;
+ }
+
+ 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[in] 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
+ )
+{
+ if (Value == NULL) {
+ return FALSE;
+ }
+
+ 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 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[in] Value Expression value to compare on.
+
+ @retval Buf Return the buffer pointer.
+
+**/
+UINT8 *
+GetBufferForValue (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return NULL;
+ }
+
+ 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;
+ }
+}
+
+/**
+ 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[in] Value Expression value to compare on.
+
+ @retval BufLen Return the buffer length.
+
+**/
+UINT16
+GetLengthForValue (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return 0;
+ }
+
+ 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;
+ }
+}
+
+/**
+ Get UINT64 type value.
+
+ @param[in] Value Input Hii value.
+
+ @retval UINT64 Return the UINT64 type value.
+
+**/
+UINT64
+HiiValueToUINT64 (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ UINT64 RetVal;
+
+ if (Value == NULL) {
+ return 0;
+ }
+
+ 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[in] Value1 Expression value to compare on left-hand.
+ @param[in] Value2 Expression value to compare on right-hand.
+ @param[out] 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[in] HiiHandle Only required for string compare.
+
+ @retval other Could not perform compare on two values.
+ @retval EFI_SUCCESS Compare the value success.
+ @retval EFI_INVALID_PARAMETER Value1, Value2 or Result is NULL.
+
+**/
+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 == NULL || Value2 == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ 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;
+}
+
+/**
+ Search a Question in Form scope using its QuestionId.
+
+ @param[in] Form The form which contains this Question.
+ @param[in] QuestionId Id of this Question.
+
+ @retval Pointer The Question.
+ @retval NULL Specified Question not found in the form.
+
+**/
+HII_STATEMENT *
+QuestionIdInForm (
+ IN HII_FORM *Form,
+ IN UINT16 QuestionId
+ )
+{
+ LIST_ENTRY *Link;
+ HII_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 = HII_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[in] FormSet The formset which contains this form.
+ @param[in] Form The form which contains this Question.
+ @param[in] QuestionId Id of this Question.
+
+ @retval Pointer The Question.
+ @retval NULL Specified Question not found in the form.
+
+**/
+HII_STATEMENT *
+QuestionIdInFormset (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN UINT16 QuestionId
+ )
+{
+ LIST_ENTRY *Link;
+ HII_STATEMENT *Question;
+
+ if (FormSet == NULL || Form == NULL) {
+ return NULL;
+ }
+
+ //
+ // Search in the form scope first
+ //
+ Question = QuestionIdInForm (Form, QuestionId);
+ if (Question != NULL) {
+ return Question;
+ }
+
+ //
+ // Search in the formset scope
+ //
+ Link = GetFirstNode (&FormSet->FormListHead);
+ while (!IsNull (&FormSet->FormListHead, Link)) {
+ Form = HII_FORM_FROM_LINK (Link);
+
+ Question = QuestionIdInForm (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;
+}
+
+/**
+ Push an Expression value onto the Stack
+
+ @param[in] 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.
+ @retval EFI_INVALID_PARAMETER Value is NULL.
+
+**/
+EFI_STATUS
+PushExpression (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return PushStack (
+ &mExpressionEvaluationStack,
+ &mExpressionEvaluationStackPointer,
+ &mExpressionEvaluationStackEnd,
+ Value
+ );
+}
+
+
+/**
+ Pop an Expression value from the stack.
+
+ @param[in] 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
+ @retval EFI_INVALID_PARAMETER Value is NULL.
+
+**/
+EFI_STATUS
+PopExpression (
+ OUT EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return PopStack (
+ mExpressionEvaluationStack + mExpressionEvaluationStackOffset,
+ &mExpressionEvaluationStackPointer,
+ Value
+ );
+}
+
+/**
+ Get current stack offset from stack start.
+
+ @return Stack offset to stack start.
+**/
+UINTN
+SaveExpressionEvaluationStackOffset (
+ VOID
+ )
+{
+ UINTN TempStackOffset;
+ TempStackOffset = mExpressionEvaluationStackOffset;
+ mExpressionEvaluationStackOffset = mExpressionEvaluationStackPointer - mExpressionEvaluationStack;
+ return TempStackOffset;
+}
+
+/**
+ Restore stack offset based on input stack offset
+
+ @param[in] StackOffset Offset to stack start.
+
+**/
+VOID
+RestoreExpressionEvaluationStackOffset (
+ UINTN StackOffset
+ )
+{
+ mExpressionEvaluationStackOffset = StackOffset;
+}
+
+
+/**
+ Evaluate opcode EFI_IFR_TO_STRING.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[in] Format String format in EFI_IFR_TO_STRING.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrToString (
+ IN HII_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 *SrcBuf;
+ UINTN BufferSize;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ 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) {
+ SrcBuf = Value.Buffer;
+ } else {
+ SrcBuf = GetBufferForValue(&Value);
+ }
+
+ if (Format == EFI_IFR_STRING_ASCII) {
+ PrintFormat = L"%a";
+ } else {
+ // Format == EFI_IFR_STRING_UNICODE
+ PrintFormat = L"%s";
+ }
+ UnicodeSPrint (Buffer, sizeof (Buffer), PrintFormat, SrcBuf);
+ String = Buffer;
+ 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[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrToUint (
+ IN HII_FORMSET *FormSet,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value;
+ CHAR16 *String;
+ CHAR16 *StringPtr;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ 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[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrCatenate (
+ IN HII_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;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // 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 = AllocatePool (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[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrMatch (
+ IN HII_FORMSET *FormSet,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[2];
+ CHAR16 *String[2];
+ UINTN Index;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // 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[in] FormSet Formset which contains this opcode.
+ @param[in] SyntaxType Syntax type for match2.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrMatch2 (
+ IN HII_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;
+
+ if (FormSet == NULL || SyntaxType == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // 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 = AllocatePool (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 = AllocatePool (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[in] FormSet Formset which contains this opcode.
+ @param[in] Format Case sensitive or insensitive.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrFind (
+ IN HII_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;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ 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[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrMid (
+ IN HII_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;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ 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 = AllocatePool (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[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrToken (
+ IN HII_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;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ 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[in] FormSet Formset which contains this opcode.
+ @param[in] Flags FIRST_MATCHING or FIRST_NON_MATCHING.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrSpan (
+ IN HII_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;
+
+ if (FormSet == NULL || Result == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ 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;
+}
+
+/**
+ Get Expression given its RuleId.
+
+ @param[in] Form The form which contains this Expression.
+ @param[in] RuleId Id of this Expression.
+
+ @retval Pointer The Expression.
+ @retval NULL Specified Expression not found in the form.
+
+**/
+HII_EXPRESSION *
+RuleIdToExpression (
+ IN HII_FORM *Form,
+ IN UINT8 RuleId
+ )
+{
+ LIST_ENTRY *Link;
+ HII_EXPRESSION *Expression;
+
+ if (Form == NULL) {
+ return NULL;
+ }
+
+ Link = GetFirstNode (&Form->RuleListHead);
+ while (!IsNull (&Form->RuleListHead, Link)) {
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+
+ if (Expression->Type == EFI_HII_EXPRESSION_RULE && Expression->ExtraData.RuleId == RuleId) {
+ return Expression;
+ }
+
+ Link = GetNextNode (&Form->RuleListHead, 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;
+}
+
+/**
+ Check whether the formset guid is in this Hii package list.
+
+ @param[in] HiiHandle The HiiHandle for this HII package list.
+ @param[in] FormSetGuid The formset guid for the request formset.
+
+ @retval TRUE Find the formset guid.
+ @retval FALSE Not found the formset guid.
+
+**/
+BOOLEAN
+IsFormsetGuidInHiiHandle (
+ IN EFI_HII_HANDLE HiiHandle,
+ IN EFI_GUID *FormSetGuid
+ )
+{
+ EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
+ UINTN BufferSize;
+ UINT32 Offset;
+ UINT32 Offset2;
+ UINT32 PackageListLength;
+ EFI_HII_PACKAGE_HEADER *PackageHeader;
+ UINT8 *Package;
+ UINT8 *OpCodeData;
+ EFI_STATUS Status;
+ BOOLEAN FindGuid;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+
+ if (FormSetGuid == NULL) {
+ return FALSE;
+ }
+
+ BufferSize = 0;
+ HiiPackageList = NULL;
+ FindGuid = FALSE;
+
+ //
+ // Locate required Hii Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ (VOID **) &HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return FALSE;
+ }
+
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, HiiHandle, &BufferSize, HiiPackageList);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ HiiPackageList = AllocatePool (BufferSize);
+ if (HiiPackageList == NULL) {
+ ASSERT (HiiPackageList != NULL);
+ return FALSE;
+ }
+
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, HiiHandle, &BufferSize, HiiPackageList);
+ } else {
+ //
+ // Fix coverity: 14253 Explicit null dereferenced.
+ // When calling ExportPackageLists with BufferSize = 0, only EFI_BUFFER_TOO_SMALL is expected.
+ // Otherwise, return FALSE immediately.
+ //
+ return FALSE;
+ }
+ if (EFI_ERROR (Status)) {
+ if (HiiPackageList != NULL) {
+ FreePool (HiiPackageList);
+ }
+ return FALSE;
+ }
+
+ //
+ // Get Form package from this HII package List
+ //
+ Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ Offset2 = 0;
+ PackageListLength = HiiPackageList->PackageLength;
+
+ while (Offset < PackageListLength) {
+ Package = ((UINT8 *) HiiPackageList) + Offset;
+ PackageHeader = (EFI_HII_PACKAGE_HEADER *)Package;
+ Offset += PackageHeader->Length;
+
+ if (PackageHeader->Type == EFI_HII_PACKAGE_FORMS) {
+ //
+ // Search FormSet in this Form Package
+ //
+ Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
+ while (Offset2 < PackageHeader->Length) {
+ OpCodeData = Package + Offset2;
+
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
+ if (CompareGuid (FormSetGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))){
+ FindGuid = TRUE;
+ break;
+ }
+ }
+
+ Offset2 += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
+ }
+ }
+ if (FindGuid) {
+ break;
+ }
+ }
+
+ FreePool (HiiPackageList);
+
+ return FindGuid;
+}
+
+/**
+ Find HII Handle in the HII database associated with given Device Path.
+
+ If DevicePath is NULL, then ASSERT.
+
+ @param[in] DevicePath Device Path associated with the HII package list
+ handle.
+ @param[in] FormsetGuid The formset guid for this formset.
+
+ @retval Handle HII package list Handle associated with the Device
+ Path.
+ @retval NULL Hii Package list handle is not found.
+
+**/
+EFI_HII_HANDLE
+DevicePathToHiiHandle (
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN EFI_GUID *FormsetGuid
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;
+ UINTN Index;
+ EFI_HANDLE Handle;
+ EFI_HANDLE DriverHandle;
+ EFI_HII_HANDLE *HiiHandles;
+ EFI_HII_HANDLE HiiHandle;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+
+ if (DevicePath == NULL || FormsetGuid == NULL) {
+ return NULL;
+ }
+
+ TmpDevicePath = DevicePath;
+ //
+ // Locate Device Path Protocol handle buffer
+ //
+ Status = gBS->LocateDevicePath (
+ &gEfiDevicePathProtocolGuid,
+ &TmpDevicePath,
+ &DriverHandle
+ );
+ if (EFI_ERROR (Status) || !IsDevicePathEnd (TmpDevicePath)) {
+ return NULL;
+ }
+
+ //
+ // Locate required Hii Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ (VOID **) &HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return NULL;
+ }
+
+ //
+ // Retrieve all HII Handles from HII database
+ //
+ HiiHandles = HiiGetHiiHandles (NULL);
+ if (HiiHandles == NULL) {
+ return NULL;
+ }
+
+ //
+ // Search Hii Handle by Driver Handle
+ //
+ HiiHandle = NULL;
+ for (Index = 0; HiiHandles[Index] != NULL; Index++) {
+ Status = HiiDatabase->GetPackageListHandle (
+ HiiDatabase,
+ HiiHandles[Index],
+ &Handle
+ );
+ if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {
+ if (IsFormsetGuidInHiiHandle (HiiHandles[Index], FormsetGuid)) {
+ HiiHandle = HiiHandles[Index];
+ break;
+ }
+
+ if (HiiHandle != NULL) {
+ break;
+ }
+ }
+ }
+
+ FreePool (HiiHandles);
+ return HiiHandle;
+}
+
+/**
+ Get question value from the predefined formset.
+
+ @param[in] DevicePath The driver's device path which produece the formset data.
+ @param[in] InputHiiHandle The hii handle associate with the formset data.
+ @param[in] FormSetGuid The formset guid which include the question.
+ @param[in] QuestionId The question id which need to get value from.
+ @param[out] 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;
+ HII_STATEMENT *Question;
+ HII_FORMSET *FormSet;
+ HII_FORM *Form;
+ BOOLEAN GetTheVal;
+ LIST_ENTRY *Link;
+
+ //
+ // The input parameter DevicePath or InputHiiHandle must have one valid input.
+ //
+ if (DevicePath == NULL && InputHiiHandle == NULL) {
+ ASSERT ((DevicePath != NULL && InputHiiHandle == NULL) ||
+ (DevicePath == NULL && InputHiiHandle != NULL) );
+ return FALSE;
+ }
+
+ if (FormSetGuid == NULL || Value == NULL) {
+ return FALSE;
+ }
+
+ 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 (HII_FORMSET));
+ ASSERT (FormSet != NULL);
+
+ Status = CreateFormSetFromHiiHandle (HiiHandle, FormSetGuid, FormSet);
+ if (EFI_ERROR (Status)) {
+ GetTheVal = FALSE;
+ goto Done;
+ }
+
+ InitializeFormSet (FormSet);
+
+ //
+ // Base on the Question Id to get the question info.
+ //
+ Question = QuestionIdInFormset (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 = HII_FORM_FROM_LINK (Link);
+
+ Question = QuestionIdInForm (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, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ GetTheVal = FALSE;
+ goto Done;
+ }
+
+ CopyMem (Value, &Question->Value, sizeof (EFI_HII_VALUE));
+
+Done:
+ //
+ // Clean the formset structure and restore the global parameter.
+ //
+ if (FormSet != NULL) {
+ DestroyFormSet (FormSet);
+ }
+
+ return GetTheVal;
+}
+
+/**
+ Covert HII_STATEMENT_VALUE to EFI_HII_VALUE.
+
+ The HiiValue->Buffer is allocated from EFI boot services memory. It is the
+ responsibility of the caller to free the memory allocated.
+
+ @param[in] StatementValue Source to be converted.
+ @param[out] HiiValue The buffer that is converted from StatementValue
+
+ @retval EFI_SUCCESS Convert successfully.
+ @retval EFI_INVALID_PARAMETER StatementValue is NULL or HiiValue is NULL.
+
+**/
+EFI_STATUS
+HiiStatementValueToHiiValue (
+ IN HII_STATEMENT_VALUE *StatementValue,
+ OUT EFI_HII_VALUE *HiiValue
+ )
+{
+ if (StatementValue == NULL || HiiValue == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ZeroMem (HiiValue, sizeof (EFI_HII_VALUE));
+
+ HiiValue->Type = StatementValue->Type;
+ HiiValue->BufferLen = StatementValue->BufferLen;
+ if (StatementValue->Buffer != NULL && StatementValue->BufferLen > 0) {
+ HiiValue->Buffer = AllocateCopyPool (HiiValue->BufferLen, StatementValue->Buffer);
+ }
+ CopyMem (&HiiValue->Value, &StatementValue->Value, sizeof (EFI_IFR_TYPE_VALUE));
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Release the buffer in EFI_HII_VALUE if the buffer is not NULL.
+
+ @param[in] HiiValue The buffer to be released.
+
+ @retval EFI_SUCCESS release HiiValue successfully.
+ @retval EFI_INVALID_PARAMETER HiiValue is NULL.
+
+**/
+EFI_STATUS
+ReleaseHiiValue (
+ IN EFI_HII_VALUE *HiiValue
+ )
+{
+ if (HiiValue == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (HiiValue->Buffer == NULL) {
+ return EFI_SUCCESS;
+ }
+
+ FreePool (HiiValue->Buffer);
+ ZeroMem (HiiValue, sizeof (EFI_HII_VALUE));
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Evaluate the result of a HII expression.
+
+ If Expression is NULL, then ASSERT.
+
+ @param[in] FormSet FormSet associated with this expression.
+ @param[in] Form Form associated with this expression.
+ @param[in,out] 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.
+ @retval EFI_INVALID_PARAMETER Formset, Form or Expression is NULL.
+
+**/
+EFI_STATUS
+EvaluateHiiExpression (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_EXPRESSION *Expression
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ HII_EXPRESSION_OPCODE *OpCode;
+ HII_STATEMENT *Question;
+ HII_STATEMENT *Question2;
+ UINT16 Index;
+ EFI_HII_VALUE Data1;
+ EFI_HII_VALUE Data2;
+ EFI_HII_VALUE Data3;
+ HII_EXPRESSION *RuleExpression;
+ EFI_HII_VALUE *Value;
+ INTN Result;
+ CHAR16 *StrPtr;
+ CHAR16 *NameValue;
+ UINT32 TempValue;
+ LIST_ENTRY *SubExpressionLink;
+ HII_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;
+ EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL *PathFromText;
+
+ if (FormSet == NULL || Form == NULL || Expression == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ StrPtr = NULL;
+ DevicePath = NULL;
+ PathFromText = 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 = HII_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 = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdValData.QuestionId);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = HiiStatementValueToHiiValue (&Question->Value, &Data1);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = CompareHiiValue (&Data1, &OpCode->ExtraData.EqIdValData.Value, &Result, NULL);
+ ReleaseHiiValue (&Data1);
+ 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 = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdIdData.QuestionId1);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = HiiStatementValueToHiiValue (&Question->Value, &Data1);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Question2 = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdIdData.QuestionId2);
+ if (Question2 == NULL) {
+ ReleaseHiiValue (&Data1);
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question2, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = HiiStatementValueToHiiValue (&Question2->Value, &Data2);
+ if (EFI_ERROR (Status)) {
+ ReleaseHiiValue (&Data1);
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = CompareHiiValue (&Data1, &Data2, &Result, FormSet->HiiHandle);
+ ReleaseHiiValue (&Data1);
+ ReleaseHiiValue (&Data2);
+ 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 = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdListData.QuestionId);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value->Value.b = FALSE;
+ for (Index =0; Index < OpCode->ExtraData.EqIdListData.ListLength; Index++) {
+ if (Question->Value.Value.u16 == OpCode->ExtraData.EqIdListData.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 = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.QuestionRef1Data.QuestionId);
+ if (Question == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Value = (EFI_HII_VALUE *)&Question->Value;
+ break;
+
+ case EFI_IFR_SECURITY_OP:
+ Value->Value.b = CheckUserPrivilege (&OpCode->ExtraData.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->ExtraData.GetSetData.VarStorage != NULL) {
+ switch (OpCode->ExtraData.GetSetData.VarStorage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+ //
+ // Get value from Edit Buffer
+ //
+ Value->Type = OpCode->ExtraData.GetSetData.ValueType;
+ CopyMem (&Value->Value, OpCode->ExtraData.GetSetData.VarStorage->EditBuffer + OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset, OpCode->ExtraData.GetSetData.ValueWidth);
+ break;
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ if (OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_STRING) {
+ //
+ // Get value from string except for STRING value.
+ //
+ Status = GetValueByName (OpCode->ExtraData.GetSetData.VarStorage, OpCode->ExtraData.GetSetData.ValueName, &StrPtr);
+ if (!EFI_ERROR (Status)) {
+ ASSERT (StrPtr != NULL);
+ TempLength = StrLen (StrPtr);
+ if (OpCode->ExtraData.GetSetData.ValueWidth >= ((TempLength + 1) / 2)) {
+ Value->Type = OpCode->ExtraData.GetSetData.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->ExtraData.GetSetData.ValueWidth;
+ Value->Type = OpCode->ExtraData.GetSetData.ValueType;
+ Status = gRT->GetVariable (
+ OpCode->ExtraData.GetSetData.ValueName,
+ &OpCode->ExtraData.GetSetData.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->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_DATE && OpCode->ExtraData.GetSetData.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->ExtraData.GetSetData.ValueType == EFI_IFR_TYPE_DATE) {
+ switch (OpCode->ExtraData.GetSetData.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->ExtraData.GetSetData.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->ExtraData.QuestionRef3Data.DevicePath != 0) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+
+ Status = gBS->LocateProtocol (
+ &gEfiDevicePathFromTextProtocolGuid,
+ NULL,
+ (VOID **) &PathFromText
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ StrPtr = GetToken (OpCode->ExtraData.QuestionRef3Data.DevicePath, FormSet->HiiHandle);
+ if (StrPtr != NULL && PathFromText != NULL) {
+ DevicePath = PathFromText->ConvertTextToDevicePath(StrPtr);
+ if (DevicePath != NULL && GetQuestionValueFromForm(DevicePath, NULL, &OpCode->ExtraData.Guid, Value->Value.u16, &QuestionVal)) {
+ Value = &QuestionVal;
+ }
+ if (DevicePath != NULL) {
+ FreePool (DevicePath);
+ }
+ }
+
+ if (StrPtr != NULL) {
+ FreePool (StrPtr);
+ }
+ } else if (IsZeroGuid (&OpCode->ExtraData.Guid)) {
+ if (!GetQuestionValueFromForm(NULL, FormSet->HiiHandle, &OpCode->ExtraData.Guid, Value->Value.u16, &QuestionVal)){
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+ Value = &QuestionVal;
+ } else {
+ Question = QuestionIdInFormset (FormSet, Form, Value->Value.u16);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // push the questions' value on to the expression stack
+ //
+ Value = (EFI_HII_VALUE *)&Question->Value;
+ }
+ break;
+
+ case EFI_IFR_RULE_REF_OP:
+ //
+ // Find expression for this rule
+ //
+ RuleExpression = RuleIdToExpression (Form, OpCode->ExtraData.RuleId);
+ if (RuleExpression == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Evaluate this rule expression
+ //
+ Status = EvaluateHiiExpression (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->ExtraData.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->ExtraData.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 = QuestionIdInFormset (FormSet, Form, Value->Value.u16);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value = (EFI_HII_VALUE *)&Question->Value;
+ 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->ExtraData.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->ExtraData.GetSetData.VarStorage != NULL) {
+ switch (OpCode->ExtraData.GetSetData.VarStorage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+ CopyMem (OpCode->ExtraData.GetSetData.VarStorage->EditBuffer + OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset, &Value->Value, OpCode->ExtraData.GetSetData.ValueWidth);
+ Data1.Value.b = TRUE;
+ break;
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ if (OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_STRING) {
+ NameValue = AllocatePool ((OpCode->ExtraData.GetSetData.ValueWidth * 2 + 1) * sizeof (CHAR16));
+ ASSERT (NameValue != NULL);
+ //
+ // Convert Buffer to Hex String
+ //
+ TempBuffer = (UINT8 *) &Value->Value + OpCode->ExtraData.GetSetData.ValueWidth - 1;
+ StrPtr = NameValue;
+ for (Index = 0; Index < OpCode->ExtraData.GetSetData.ValueWidth; Index ++, TempBuffer --) {
+ UnicodeValueToStringS (
+ StrPtr,
+ (OpCode->ExtraData.GetSetData.ValueWidth * 2 + 1) * sizeof (CHAR16) - ((UINTN)StrPtr - (UINTN)NameValue),
+ PREFIX_ZERO | RADIX_HEX,
+ *TempBuffer,
+ 2
+ );
+ StrPtr += StrnLenS (StrPtr, OpCode->ExtraData.GetSetData.ValueWidth * 2 + 1 - ((UINTN)StrPtr - (UINTN)NameValue) / sizeof (CHAR16));
+ }
+ Status = SetValueByName (OpCode->ExtraData.GetSetData.VarStorage, OpCode->ExtraData.GetSetData.ValueName, NameValue, NULL);
+ FreePool (NameValue);
+ if (!EFI_ERROR (Status)) {
+ Data1.Value.b = TRUE;
+ }
+ }
+ break;
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ Status = gRT->SetVariable (
+ OpCode->ExtraData.GetSetData.ValueName,
+ &OpCode->ExtraData.GetSetData.VarStorage->Guid,
+ OpCode->ExtraData.GetSetData.VarStorage->Attributes,
+ OpCode->ExtraData.GetSetData.ValueWidth,
+ &Value->Value
+ );
+ if (!EFI_ERROR (Status)) {
+ Data1.Value.b = TRUE;
+ }
+ break;
+ default:
+ //
+ // Not recognize storage.
+ //
+ Status = EFI_UNSUPPORTED;
+ goto Done;
+ }
+ } else {
+ //
+ // For Time/Date Data
+ //
+ if (OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_DATE && OpCode->ExtraData.GetSetData.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->ExtraData.GetSetData.ValueType == EFI_IFR_TYPE_DATE) {
+ switch (OpCode->ExtraData.GetSetData.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->ExtraData.GetSetData.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->ExtraData.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->ExtraData.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->ExtraData.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 = HII_EXPRESSION_FROM_LINK (SubExpressionLink);
+ //
+ // Evaluate the first expression in this pair.
+ //
+ Status = EvaluateHiiExpression (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 = HII_EXPRESSION_FROM_LINK (SubExpressionLink);
+ Status = EvaluateHiiExpression (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;
+}
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.c b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.c
new file mode 100644
index 00000000000..f6b8a20fbb8
--- /dev/null
+++ b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityLib.c
@@ -0,0 +1,855 @@
+/** @file
+ Definitinos of RedfishPlatformConfigLib
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "HiiInternal.h"
+
+/**
+ Initialize the internal data structure of a FormSet.
+
+ @param Handle PackageList Handle
+ @param FormSetGuid On input, GUID or class GUID of a formset. If not
+ specified (NULL or zero GUID), take the first
+ FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
+ found in package list.
+ On output, GUID of the formset found(if not NULL).
+ @param FormSet FormSet data structure.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_FOUND The specified FormSet could not be found.
+
+**/
+EFI_STATUS
+CreateFormSetFromHiiHandle (
+ IN EFI_HII_HANDLE Handle,
+ IN OUT EFI_GUID *FormSetGuid,
+ OUT HII_FORMSET *FormSet
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE DriverHandle;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+
+ if (FormSetGuid == NULL || FormSet == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Locate required Hii Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ (VOID **) &HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = GetIfrBinaryData (Handle, FormSetGuid, &FormSet->IfrBinaryLength, &FormSet->IfrBinaryData);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ FormSet->Signature = HII_FORMSET_SIGNATURE;
+ FormSet->HiiHandle = Handle;
+ CopyMem (&FormSet->Guid, FormSetGuid, sizeof (EFI_GUID));
+ //
+ // Retrieve ConfigAccess Protocol associated with this HiiPackageList
+ //
+ Status = HiiDatabase->GetPackageListHandle (HiiDatabase, Handle, &DriverHandle);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ FormSet->DriverHandle = DriverHandle;
+ Status = gBS->HandleProtocol (
+ DriverHandle,
+ &gEfiHiiConfigAccessProtocolGuid,
+ (VOID **) &FormSet->ConfigAccess
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // Configuration Driver don't attach ConfigAccess protocol to its HII package
+ // list, then there will be no configuration action required
+ //
+ FormSet->ConfigAccess = NULL;
+ }
+
+ Status = gBS->HandleProtocol (
+ DriverHandle,
+ &gEfiDevicePathProtocolGuid,
+ (VOID **) &FormSet->DevicePath
+ );
+ if (EFI_ERROR (Status)) {
+
+ //
+ // Configuration Driver don't attach ConfigAccess protocol to its HII package
+ // list, then there will be no configuration action required
+ //
+ FormSet->DevicePath = NULL;
+ }
+
+ //
+ // Parse the IFR binary OpCodes
+ //
+ Status = ParseOpCodes (FormSet);
+
+ return Status;
+}
+
+/**
+ Initialize a Formset and get current setting for Questions.
+
+ @param FormSet FormSet data structure.
+
+**/
+VOID
+InitializeFormSet (
+ IN OUT HII_FORMSET *FormSet
+ )
+{
+ LIST_ENTRY *Link;
+ HII_FORMSET_STORAGE *Storage;
+ LIST_ENTRY *FormLink;
+ HII_STATEMENT *Question;
+ HII_FORM *Form;
+
+ if (FormSet == NULL) {
+ return;
+ }
+
+ //
+ // Load Storage for all questions with storage
+ //
+ Link = GetFirstNode (&FormSet->StorageListHead);
+ while (!IsNull (&FormSet->StorageListHead, Link)) {
+
+ Storage = HII_STORAGE_FROM_LINK (Link);
+ LoadStorage (FormSet, Storage);
+ Link = GetNextNode (&FormSet->StorageListHead, Link);
+ }
+
+ //
+ // Get Current Value for all no storage questions
+ //
+ FormLink = GetFirstNode (&FormSet->FormListHead);
+ while (!IsNull (&FormSet->FormListHead, FormLink)) {
+
+ Form = HII_FORM_FROM_LINK (FormLink);
+ Link = GetFirstNode (&Form->StatementListHead);
+ while (!IsNull (&Form->StatementListHead, Link)) {
+
+ Question = HII_STATEMENT_FROM_LINK (Link);
+ if (Question->Storage == NULL) {
+ RetrieveQuestion (FormSet, Form, Question);
+ }
+ Link = GetNextNode (&Form->StatementListHead, Link);
+ }
+ FormLink = GetNextNode (&FormSet->FormListHead, FormLink);
+ }
+}
+
+/**
+ Free resources allocated for a FormSet.
+
+ @param FormSet Pointer of the FormSet
+
+**/
+VOID
+DestroyFormSet (
+ IN OUT HII_FORMSET *FormSet
+ )
+{
+ LIST_ENTRY *Link;
+ HII_FORMSET_STORAGE *Storage;
+ HII_FORMSET_DEFAULTSTORE *DefaultStore;
+ HII_FORM *Form;
+
+ if (FormSet->IfrBinaryData == NULL) {
+ //
+ // Uninitialized FormSet
+ //
+ FreePool (FormSet);
+ return;
+ }
+
+ //
+ // Free IFR binary buffer
+ //
+ FreePool (FormSet->IfrBinaryData);
+
+ //
+ // Free FormSet Storage
+ //
+ if (FormSet->StorageListHead.ForwardLink != NULL) {
+ while (!IsListEmpty (&FormSet->StorageListHead)) {
+
+ Link = GetFirstNode (&FormSet->StorageListHead);
+ Storage = HII_STORAGE_FROM_LINK (Link);
+ RemoveEntryList (&Storage->Link);
+
+ if (Storage != NULL) {
+ FreePool (Storage);
+ }
+ }
+ }
+
+ //
+ // Free FormSet Default Store
+ //
+ if (FormSet->DefaultStoreListHead.ForwardLink != NULL) {
+ while (!IsListEmpty (&FormSet->DefaultStoreListHead)) {
+
+ Link = GetFirstNode (&FormSet->DefaultStoreListHead);
+ DefaultStore = HII_FORMSET_DEFAULTSTORE_FROM_LINK (Link);
+ RemoveEntryList (&DefaultStore->Link);
+
+ FreePool (DefaultStore);
+ }
+ }
+
+ //
+ // Free Forms
+ //
+ if (FormSet->FormListHead.ForwardLink != NULL) {
+ while (!IsListEmpty (&FormSet->FormListHead)) {
+
+ Link = GetFirstNode (&FormSet->FormListHead);
+ Form = HII_FORM_FROM_LINK (Link);
+ RemoveEntryList (&Form->Link);
+
+ DestroyForm (FormSet, Form);
+ }
+ }
+
+ FreePool (FormSet);
+}
+
+/**
+ Submit data for a form.
+
+ @param FormSet FormSet which contains the Form.
+ @param Form Form to submit.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval Others Other errors occur.
+
+**/
+EFI_STATUS
+SubmitForm (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+ LIST_ENTRY *Link;
+ EFI_STRING ConfigResp;
+ EFI_STRING Progress;
+ HII_FORMSET_STORAGE *Storage;
+ HII_FORM_CONFIG_REQUEST *ConfigInfo;
+
+ if (FormSet == NULL || Form == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = NoSubmitCheck (FormSet, &Form, NULL);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Link = GetFirstNode (&Form->ConfigRequestHead);
+ while (!IsNull (&Form->ConfigRequestHead, Link)) {
+
+ ConfigInfo = HII_FORM_CONFIG_REQUEST_FROM_LINK (Link);
+ Link = GetNextNode (&Form->ConfigRequestHead, Link);
+
+ Storage = ConfigInfo->Storage;
+ if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
+ continue;
+ }
+
+ //
+ // Skip if there is no RequestElement
+ //
+ if (ConfigInfo->ElementCount == 0) {
+ continue;
+ }
+
+ Status = StorageToConfigResp (ConfigInfo->Storage, &ConfigResp, ConfigInfo->ConfigRequest);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **) &HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = HiiConfigRouting->RouteConfig (
+ HiiConfigRouting,
+ ConfigResp,
+ &Progress
+ );
+
+ if (EFI_ERROR (Status)) {
+
+ FreePool (ConfigResp);
+ continue;
+ }
+
+ FreePool (ConfigResp);
+ }
+
+ return Status;
+}
+
+/**
+ Save Question Value to the memory, but not to storage.
+
+ @param FormSet FormSet data structure.
+ @param Form Form data structure.
+ @param Question Pointer to the Question.
+ @param QuestionValue New Question Value to be set.
+
+ @retval EFI_SUCCESS The question value has been set successfully.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+
+**/
+EFI_STATUS
+SetQuestionValue (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_STATEMENT *Question,
+ IN HII_STATEMENT_VALUE *QuestionValue
+ )
+{
+ UINT8 *Src;
+ UINTN BufferLen;
+ UINTN StorageWidth;
+ HII_FORMSET_STORAGE *Storage;
+ CHAR16 *ValueStr;
+ BOOLEAN IsBufferStorage;
+ UINT8 *TemBuffer;
+ CHAR16 *TemName;
+ CHAR16 *TemString;
+ UINTN Index;
+ HII_NAME_VALUE_NODE *Node;
+ EFI_STATUS Status;
+
+ if (FormSet == NULL || Form == NULL || Question == NULL || QuestionValue == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_SUCCESS;
+ Node = NULL;
+
+ //
+ // If Question value is provided by an Expression, then it is read only
+ //
+ if (Question->ValueExpression != NULL || Question->Value.Type != QuestionValue->Type) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Before set question value, evaluate its write expression.
+ //
+ if (Question->WriteExpression != NULL && Form->FormType == STANDARD_MAP_FORM_TYPE) {
+
+ Status = EvaluateHiiExpression (FormSet, Form, Question->WriteExpression);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ Storage = Question->Storage;
+ if (Storage != NULL) {
+
+ StorageWidth = Question->StorageWidth;
+ if (Question->Value.Type == EFI_IFR_TYPE_BUFFER) {
+
+ Question->Value.BufferLen = QuestionValue->BufferLen;
+ Question->Value.Buffer = AllocateCopyPool (QuestionValue->BufferLen, QuestionValue->Buffer);
+ if (Question->Value.Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Question->Value.BufferValueType = QuestionValue->BufferValueType;
+ Src = Question->Value.Buffer;
+
+ } else if (Question->Value.Type == EFI_IFR_TYPE_STRING) {
+
+ Question->Value.Value.string = QuestionValue->Value.string;
+ TemString = HiiGetString (FormSet->HiiHandle, QuestionValue->Value.string, NULL);
+ if (TemString == NULL) {
+ return EFI_ABORTED;
+ }
+
+ Question->Value.BufferLen = Question->StorageWidth;
+ Question->Value.Buffer = AllocateZeroPool (Question->StorageWidth);
+ if (Question->Value.Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CopyMem (Question->Value.Buffer, TemString, StrSize (TemString));
+ Src = Question->Value.Buffer;
+
+ } else {
+
+ CopyMem (&Question->Value.Value, &QuestionValue->Value, sizeof (EFI_IFR_TYPE_VALUE));
+ Src = (UINT8 *) &Question->Value.Value;
+ }
+
+ if (Storage->Type == EFI_HII_VARSTORE_BUFFER || Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
+ IsBufferStorage = TRUE;
+ } else {
+ IsBufferStorage = FALSE;
+ }
+
+ if (IsBufferStorage) {
+
+ //
+ // If the Question refer to bit filed, copy the value in related bit filed to storage edit buffer.
+ //
+ if (Question->QuestionReferToBitField) {
+ SetBitsQuestionValue (Question, Storage->Buffer + Question->VarStoreInfo.VarOffset, (UINT32)(*Src));
+ } else {
+ CopyMem (Storage->Buffer + Question->VarStoreInfo.VarOffset, Src, StorageWidth);
+ }
+ } else {
+
+ if (Question->Value.Type == EFI_IFR_TYPE_STRING) {
+
+ //
+ // Allocate enough string buffer.
+ //
+ ValueStr = NULL;
+ BufferLen = ((StrLen ((CHAR16 *) Src) * 4) + 1) * sizeof (CHAR16);
+ ValueStr = AllocatePool (BufferLen);
+ if (ValueStr == NULL) {
+
+ if (Question->Value.Buffer != NULL) {
+ FreePool (Question->Value.Buffer);
+ }
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"
+ //
+ TemName = (CHAR16 *) Src;
+ TemString = ValueStr;
+ for (; *TemName != L'\0'; TemName++) {
+
+ UnicodeValueToStringS (
+ TemString,
+ BufferLen - ((UINTN)TemString - (UINTN) ValueStr),
+ PREFIX_ZERO | RADIX_HEX,
+ *TemName,
+ 4
+ );
+ TemString += StrnLenS (TemString, (BufferLen - ((UINTN)TemString - (UINTN) ValueStr)) / sizeof (CHAR16));
+ }
+ } else {
+
+ BufferLen = StorageWidth * 2 + 1;
+ ValueStr = AllocateZeroPool (BufferLen * sizeof (CHAR16));
+ if (ValueStr == NULL) {
+
+ if (Question->Value.Buffer != NULL) {
+ FreePool (Question->Value.Buffer);
+ }
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Convert Buffer to Hex String
+ //
+ TemBuffer = Src + StorageWidth - 1;
+ TemString = ValueStr;
+ for (Index = 0; Index < StorageWidth; Index ++, TemBuffer --) {
+
+ UnicodeValueToStringS (
+ TemString,
+ BufferLen * sizeof (CHAR16) - ((UINTN)TemString - (UINTN) ValueStr),
+ PREFIX_ZERO | RADIX_HEX,
+ *TemBuffer,
+ 2
+ );
+ TemString += StrnLenS (TemString, BufferLen - ((UINTN)TemString - (UINTN) ValueStr) / sizeof (CHAR16));
+ }
+ }
+
+ Status = SetValueByName (Storage, Question->VariableName, ValueStr, &Node);
+ FreePool (ValueStr);
+ if (EFI_ERROR (Status)) {
+
+ if (Question->Value.Buffer != NULL) {
+ FreePool (Question->Value.Buffer);
+ }
+ return Status;
+ }
+ }
+ } else {
+
+ if (Question->Value.Type == EFI_IFR_TYPE_BUFFER) {
+
+ Question->Value.BufferLen = QuestionValue->BufferLen;
+ Question->Value.Buffer = AllocateCopyPool (QuestionValue->BufferLen, QuestionValue->Buffer);
+ if (Question->Value.Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Question->Value.BufferValueType = QuestionValue->BufferValueType;
+
+ } else if (Question->Value.Type == EFI_IFR_TYPE_STRING) {
+
+ Question->Value.Value.string = QuestionValue->Value.string;
+ TemString = HiiGetString (FormSet->HiiHandle, QuestionValue->Value.string, NULL);
+ if (TemString == NULL) {
+ return EFI_ABORTED;
+ }
+
+ Question->Value.BufferLen = (UINT16) StrSize (TemString);
+ Question->Value.Buffer = AllocateZeroPool (QuestionValue->BufferLen);
+ if (Question->Value.Buffer == NULL) {
+
+ FreePool (TemString);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CopyMem (Question->Value.Buffer, TemString, StrSize (TemString));
+ FreePool (TemString);
+
+ } else {
+ CopyMem (&Question->Value.Value, &QuestionValue->Value, sizeof (EFI_IFR_TYPE_VALUE));
+ }
+
+ }
+
+ return Status;
+}
+
+
+/**
+ Get Question's current Value from storage.
+
+ @param FormSet FormSet data structure.
+ @param Form Form data structure.
+ @param Question Question to be initialized.
+
+ @return the current Question Value in storage if success.
+ @return NULL if Question is not found or any error occurs.
+
+**/
+HII_STATEMENT_VALUE*
+RetrieveQuestion (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_STATEMENT *Question
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+ EFI_BROWSER_ACTION_REQUEST ActionRequest;
+ HII_FORMSET_STORAGE *Storage;
+ HII_STATEMENT_VALUE *QuestionValue;
+ EFI_IFR_TYPE_VALUE *TypeValue;
+ EFI_TIME EfiTime;
+ BOOLEAN Enabled;
+ BOOLEAN Pending;
+ UINT8 *Dst;
+ UINTN StorageWidth;
+ CHAR16 *ConfigRequest;
+ CHAR16 *Progress;
+ CHAR16 *Result;
+ CHAR16 *ValueStr;
+ UINTN Length;
+ BOOLEAN IsBufferStorage;
+ CHAR16 *NewString;
+
+ if (FormSet == NULL || Form == NULL || Question == NULL) {
+ return NULL;
+ }
+
+ Status = EFI_SUCCESS;
+ ValueStr = NULL;
+ Result = NULL;
+
+ QuestionValue = AllocateZeroPool (sizeof (HII_STATEMENT_VALUE));
+ if (QuestionValue == NULL) {
+ return NULL;
+ }
+
+ QuestionValue->Type = Question->Value.Type;
+ QuestionValue->BufferLen = Question->Value.BufferLen;
+ if (QuestionValue->BufferLen != 0) {
+
+ QuestionValue->Buffer = AllocateZeroPool (QuestionValue->BufferLen);
+ if (QuestionValue->Buffer == NULL) {
+
+ FreePool (QuestionValue);
+ return NULL;
+ }
+ }
+
+ //
+ // Question value is provided by RTC
+ //
+ Storage = Question->Storage;
+ StorageWidth = Question->StorageWidth;
+
+ if (Storage == NULL) {
+
+ //
+ // It's a Question without storage, or RTC date/time
+ //
+ if (Question->Operand == EFI_IFR_DATE_OP || Question->Operand == EFI_IFR_TIME_OP) {
+
+ //
+ // Date and time define the same Flags bit
+ //
+ switch (Question->ExtraData.Flags & EFI_QF_DATE_STORAGE) {
+
+ case QF_DATE_STORAGE_TIME:
+
+ Status = gRT->GetTime (&EfiTime, NULL);
+ break;
+
+ case QF_DATE_STORAGE_WAKEUP:
+
+ Status = gRT->GetWakeupTime (&Enabled, &Pending, &EfiTime);
+ break;
+
+ case QF_DATE_STORAGE_NORMAL:
+ default:
+
+ goto ON_ERROR;
+ }
+
+ if (EFI_ERROR (Status)) {
+
+ if (Question->Operand == EFI_IFR_DATE_OP){
+
+ QuestionValue->Value.date.Year = 0xff;
+ QuestionValue->Value.date.Month = 0xff;
+ QuestionValue->Value.date.Day = 0xff;
+ } else {
+
+ QuestionValue->Value.time.Hour = 0xff;
+ QuestionValue->Value.time.Minute = 0xff;
+ QuestionValue->Value.time.Second = 0xff;
+ }
+ return QuestionValue;
+ }
+
+ if (Question->Operand == EFI_IFR_DATE_OP) {
+
+ QuestionValue->Value.date.Year = EfiTime.Year;
+ QuestionValue->Value.date.Month = EfiTime.Month;
+ QuestionValue->Value.date.Day = EfiTime.Day;
+ } else {
+
+ QuestionValue->Value.time.Hour = EfiTime.Hour;
+ QuestionValue->Value.time.Minute = EfiTime.Minute;
+ QuestionValue->Value.time.Second = EfiTime.Second;
+ }
+ } else {
+
+ if (((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != EFI_IFR_FLAG_CALLBACK) ||
+ FormSet->ConfigAccess == NULL) {
+
+ goto ON_ERROR;
+ }
+
+ if (QuestionValue->Type == EFI_IFR_TYPE_BUFFER) {
+ //
+ // For OrderedList, passing in the value buffer to Callback()
+ //
+ TypeValue = (EFI_IFR_TYPE_VALUE *) QuestionValue->Buffer;
+ } else {
+ TypeValue = &QuestionValue->Value;
+ }
+
+ ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
+ Status = FormSet->ConfigAccess->Callback (
+ FormSet->ConfigAccess,
+ EFI_BROWSER_ACTION_RETRIEVE,
+ Question->QuestionId,
+ QuestionValue->Type,
+ TypeValue,
+ &ActionRequest
+ );
+
+ if (!EFI_ERROR (Status) && QuestionValue->Type == EFI_IFR_TYPE_STRING) {
+
+ if (TypeValue->string == 0) {
+ goto ON_ERROR;
+ }
+
+ NewString = GetToken (TypeValue->string, FormSet->HiiHandle);
+ if (NewString == NULL) {
+ goto ON_ERROR;
+ }
+
+ QuestionValue->Buffer = AllocatePool (StrSize (NewString));
+ if (QuestionValue->Buffer == NULL) {
+
+ FreePool (NewString);
+ goto ON_ERROR;
+ }
+ CopyMem (QuestionValue->Buffer, NewString, StrSize (NewString));
+ QuestionValue->BufferLen = (UINT16) StrSize (NewString);
+
+ FreePool (NewString);
+ }
+ }
+
+ return QuestionValue;
+ }
+
+ //
+ // Question value is provided by EFI variable
+ //
+ if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
+ if (QuestionValue->Type != EFI_IFR_TYPE_BUFFER && QuestionValue->Type != EFI_IFR_TYPE_STRING) {
+
+ Dst = QuestionValue->Buffer;
+ StorageWidth = QuestionValue->BufferLen;
+ } else {
+
+ Dst = (UINT8 *) &QuestionValue->Value;
+ StorageWidth = sizeof (EFI_IFR_TYPE_VALUE);
+ }
+
+ Status = gRT->GetVariable (
+ Question->VariableName,
+ &Storage->Guid,
+ NULL,
+ &StorageWidth,
+ Dst
+ );
+
+ return QuestionValue;
+ }
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **) &HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ if (QuestionValue->BufferLen != 0) {
+ Dst = QuestionValue->Buffer;
+ } else {
+ Dst = (UINT8 *) &QuestionValue->Value;
+ }
+
+ if (Storage->Type == EFI_HII_VARSTORE_BUFFER || Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
+ IsBufferStorage = TRUE;
+ } else {
+ IsBufferStorage = FALSE;
+ }
+
+ Storage = GetFstStgFromVarId(FormSet, Question->VarStoreId);
+ if (Storage == NULL) {
+ goto ON_ERROR;
+ }
+
+ //
+ // <ConfigRequest> ::= <ConfigHdr> + <BlockName> || <ConfigHdr> + "&" + <VariableName>
+ //
+ if (IsBufferStorage) {
+
+ Length = StrLen (Storage->ConfigHdr);
+ Length += StrLen (Question->BlockName);
+ } else {
+
+ Length = StrLen (Storage->ConfigHdr);
+ Length += StrLen (Question->VariableName) + 1;
+ }
+
+ ConfigRequest = AllocatePool ((Length + 1) * sizeof (CHAR16));
+ if (ConfigRequest == NULL) {
+ goto ON_ERROR;
+ }
+
+ StrCpyS (ConfigRequest, Length + 1, Storage->ConfigHdr);
+ if (IsBufferStorage) {
+
+ StrCatS (ConfigRequest, Length + 1, Question->BlockName);
+ } else {
+
+ StrCatS (ConfigRequest, Length + 1, L"&");
+ StrCatS (ConfigRequest, Length + 1, Question->VariableName);
+ }
+
+ //
+ // Request current settings from Configuration Driver
+ //
+ Status = HiiConfigRouting->ExtractConfig (
+ HiiConfigRouting,
+ ConfigRequest,
+ &Progress,
+ &Result
+ );
+ FreePool (ConfigRequest);
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ if (IsBufferStorage) {
+
+ ValueStr = StrStr (Result, L"&VALUE");
+ if (ValueStr == NULL) {
+
+ FreePool (Result);
+ goto ON_ERROR;
+ }
+ ValueStr = ValueStr + 6;
+
+ } else {
+ ValueStr = Result + Length;
+ }
+
+ if (*ValueStr != '=') {
+
+ FreePool (Result);
+ goto ON_ERROR;
+ }
+
+ ValueStr ++;
+ Status = BufferToValue (Question, ValueStr, QuestionValue);
+ if (EFI_ERROR (Status)) {
+
+ FreePool (Result);
+ goto ON_ERROR;
+ }
+
+ if (Result != NULL) {
+ FreePool (Result);
+ }
+ return QuestionValue;
+
+ON_ERROR:
+
+ if (QuestionValue->Buffer != NULL) {
+ FreePool (QuestionValue->Buffer);
+ }
+ FreePool (QuestionValue);
+
+ return NULL;
+}
--
2.21.0.windows.1
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2021-10-28 0:59 [PATCH] edk2-staging/RedfishPkg: HII utility helper library Abner Chang
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