/** @file

  Vfr common library functions.

Copyright (c) 2004 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#pragma once

#include "string.h"
#include "Common/UefiBaseTypes.h"
#include "EfiVfr.h"
#include "VfrError.h"

#pragma pack(1)
typedef struct {
    EFI_GUID Guid;
} PACKED_EFI_GUID;
#pragma pack()

static EFI_GUID gEdkiiIfrBitVarGuid = EDKII_IFR_BIT_VARSTORE_GUID;

#define MAX_BIT_WIDTH                      32
#define MAX_NAME_LEN                       64
#define MAX_STRING_LEN                     0x100
#define DEFAULT_ALIGN                      1
#define DEFAULT_PACK_ALIGN                 0x8
#define DEFAULT_NAME_TABLE_ITEMS           1024

#define EFI_BITS_SHIFT_PER_UINT32          0x5
#define EFI_BITS_PER_UINT32                (1 << EFI_BITS_SHIFT_PER_UINT32)

#define BUFFER_SAFE_FREE(Buf)              do { if ((Buf) != NULL) { delete (Buf); } } while (0);
#define ARRAY_SAFE_FREE(Buf)               do { if ((Buf) != NULL) { delete[] (Buf); } } while (0);


class CVfrBinaryOutput {
public:
  virtual VOID WriteLine (IN FILE *, IN UINT32, IN CONST CHAR8 *, IN CHAR8 *, IN UINT32);
  virtual VOID WriteEnd (IN FILE *, IN UINT32, IN CONST CHAR8 *, IN CHAR8 *, IN UINT32);
};

UINT32
_STR2U32 (
  IN CHAR8 *Str
  );

struct SConfigInfo {
  UINT16             mOffset;
  UINT16             mWidth;
  UINT8              *mValue;
  SConfigInfo        *mNext;

  SConfigInfo (IN UINT8, IN UINT16, IN UINT32, IN EFI_IFR_TYPE_VALUE);
  ~SConfigInfo (VOID);

private:
  SConfigInfo (IN CONST SConfigInfo&);             // Prevent copy-construction
  SConfigInfo& operator= (IN CONST SConfigInfo&);  // Prevent assignment
};

struct SConfigItem {
  CHAR8         *mName;         // varstore name
  EFI_GUID      *mGuid;         // varstore guid, varstore name + guid deside one varstore
  CHAR8         *mId;           // default ID
  SConfigInfo   *mInfoStrList;  // list of Offset/Value in the varstore
  SConfigItem   *mNext;

public:
  SConfigItem (IN CHAR8 *, IN EFI_GUID *, IN CHAR8 *);
  SConfigItem (IN CHAR8 *, IN EFI_GUID *, IN CHAR8 *, IN UINT8, IN UINT16, IN UINT16, IN EFI_IFR_TYPE_VALUE);
  virtual ~SConfigItem ();

private:
  SConfigItem (IN CONST SConfigItem&);             // Prevent copy-construction
  SConfigItem& operator= (IN CONST SConfigItem&);  // Prevent assignment
};

class CVfrBufferConfig {
private:
  SConfigItem *mItemListHead;
  SConfigItem *mItemListTail;
  SConfigItem *mItemListPos;

public:
  CVfrBufferConfig (VOID);
  virtual ~CVfrBufferConfig (VOID);

  virtual UINT8   Register (IN CHAR8 *, IN EFI_GUID *,IN CHAR8 *Info = NULL);
  virtual VOID    Open (VOID);
  virtual BOOLEAN Eof(VOID);
  virtual UINT8   Select (IN CHAR8 *, IN EFI_GUID *, IN CHAR8 *Info = NULL);
  virtual UINT8   Write (IN CONST CHAR8, IN CHAR8 *, IN EFI_GUID *, IN CHAR8 *, IN UINT8, IN UINT16, IN UINT32, IN EFI_IFR_TYPE_VALUE);
#if 0
  virtual UINT8   Read (OUT CHAR8 **, OUT CHAR8 **, OUT CHAR8 **, OUT CHAR8 **, OUT CHAR8 **);
#endif
  virtual VOID    Close (VOID);
  virtual VOID    OutputCFile (IN FILE *, IN CHAR8 *);

private:
  CVfrBufferConfig (IN CONST CVfrBufferConfig&);             // Prevent copy-construction
  CVfrBufferConfig& operator= (IN CONST CVfrBufferConfig&);  // Prevent assignment
};

extern CVfrBufferConfig gCVfrBufferConfig;

#define ALIGN_STUFF(Size, Align) ((Align) - (Size) % (Align))
#define INVALID_ARRAY_INDEX      0xFFFFFFFF

struct SVfrDataType;

struct SVfrDataField {
  CHAR8                     mFieldName[MAX_NAME_LEN];
  SVfrDataType              *mFieldType;
  UINT32                    mOffset;
  UINT32                    mArrayNum; ///< Holds array length, or zero for non-array.
  BOOLEAN                   mIsBitField;
  UINT8                     mBitWidth;
  UINT32                    mBitOffset;
  SVfrDataField             *mNext;
};

struct SVfrDataType {
  CHAR8                     mTypeName[MAX_NAME_LEN];
  UINT8                     mType;
  UINT32                    mAlign;
  UINT32                    mTotalSize;
  BOOLEAN                   mHasBitField;
  SVfrDataField             *mMembers;
  SVfrDataType              *mNext;
};

#define VFR_PACK_ASSIGN     0x01
#define VFR_PACK_SHOW       0x02
#define VFR_PACK_PUSH       0x04
#define VFR_PACK_POP        0x08

#define PACKSTACK_MAX_SIZE  0x400

struct SVfrPackStackNode {
  CHAR8                     *mIdentifier;
  UINT32                    mNumber;
  SVfrPackStackNode         *mNext;

  SVfrPackStackNode (IN CHAR8 *Identifier, IN UINT32 Number) {
    mIdentifier = NULL;
    mNumber     = Number;
    mNext       = NULL;

    if (Identifier != NULL) {
      mIdentifier = new CHAR8[strlen (Identifier) + 1];
      strcpy (mIdentifier, Identifier);
    }
  }

  ~SVfrPackStackNode (VOID) {
    if (mIdentifier != NULL) {
      delete[] mIdentifier;
    }
    mNext = NULL;
  }

  bool Match (IN CHAR8 *Identifier) {
    if (Identifier == NULL) {
      return TRUE;
    } else if (mIdentifier == NULL) {
      return FALSE;
    } else if (strcmp (Identifier, mIdentifier) == 0) {
      return TRUE;
    } else {
      return FALSE;
    }
  }

private:
  SVfrPackStackNode (IN CONST SVfrPackStackNode&);             // Prevent copy-construction
  SVfrPackStackNode& operator= (IN CONST SVfrPackStackNode&);  // Prevent assignment
};

class CVfrVarDataTypeDB {
private:
  UINT32                    mPackAlign;
  SVfrPackStackNode         *mPackStack;

public:
  EFI_VFR_RETURN_CODE       Pack (IN UINT32, IN UINT8, IN CHAR8 *Identifier = NULL, IN UINT32 Number = DEFAULT_PACK_ALIGN);

private:
  SVfrDataType              *mDataTypeList;

  SVfrDataType              *mNewDataType;
  SVfrDataType              *mCurrDataType;
  SVfrDataField             *mCurrDataField;

  VOID InternalTypesListInit (VOID);
  VOID RegisterNewType (IN SVfrDataType *);

  EFI_VFR_RETURN_CODE ExtractStructTypeName (IN CHAR8 *&, OUT CHAR8 *);
  EFI_VFR_RETURN_CODE GetTypeField (IN CONST CHAR8 *, IN SVfrDataType *, IN SVfrDataField *&);
  EFI_VFR_RETURN_CODE GetFieldOffset (IN SVfrDataField *, IN UINT32, OUT UINT32 &, IN BOOLEAN);
  UINT8               GetFieldType (IN SVfrDataField *);
  UINT32              GetFieldSize (IN SVfrDataField *, IN UINT32, IN BOOLEAN);

public:
  CVfrVarDataTypeDB (VOID);
  ~CVfrVarDataTypeDB (VOID);

  VOID                DeclareDataTypeBegin (VOID);
  EFI_VFR_RETURN_CODE SetNewTypeName (IN CHAR8 *);
  EFI_VFR_RETURN_CODE DataTypeAddField (IN CHAR8 *, IN CHAR8 *, IN UINT32, IN BOOLEAN);
  EFI_VFR_RETURN_CODE DataTypeAddBitField (IN CHAR8 *, IN CHAR8 *, IN UINT32, IN BOOLEAN);
  VOID                DeclareDataTypeEnd (VOID);

  EFI_VFR_RETURN_CODE GetDataType (IN CHAR8 *, OUT SVfrDataType **);
  EFI_VFR_RETURN_CODE GetDataTypeSize (IN CHAR8 *, OUT UINT32 *);
  EFI_VFR_RETURN_CODE GetDataTypeSize (IN UINT8, OUT UINT32 *);
  EFI_VFR_RETURN_CODE GetDataFieldInfo (IN CHAR8 *, OUT UINT16 &, OUT UINT8 &, OUT UINT32 &, OUT BOOLEAN &);

  EFI_VFR_RETURN_CODE GetUserDefinedTypeNameList (OUT CHAR8 ***, OUT UINT32 *);
  EFI_VFR_RETURN_CODE ExtractFieldNameAndArrayIdx (IN CHAR8 *&, OUT CHAR8 *, OUT UINT32 &);
  BOOLEAN             DataTypeHasBitField (IN  CHAR8 *);
  BOOLEAN             IsThisBitField (IN  CHAR8 *);

  BOOLEAN             IsTypeNameDefined (IN CHAR8 *);

  VOID                Dump(IN FILE *);
  //
  // First the declared
  //
  CHAR8               *mFirstNewDataTypeName;
#ifdef CVFR_VARDATATYPEDB_DEBUG
  VOID ParserDB ();
#endif

private:
  CVfrVarDataTypeDB (IN CONST CVfrVarDataTypeDB&);             // Prevent copy-construction
  CVfrVarDataTypeDB& operator= (IN CONST CVfrVarDataTypeDB&);  // Prevent assignment
};

extern CVfrVarDataTypeDB  gCVfrVarDataTypeDB;

typedef enum {
  EFI_VFR_VARSTORE_INVALID,
  EFI_VFR_VARSTORE_BUFFER,
  EFI_VFR_VARSTORE_EFI,
  EFI_VFR_VARSTORE_NAME,
  EFI_VFR_VARSTORE_BUFFER_BITS
} EFI_VFR_VARSTORE_TYPE;

struct SVfrVarStorageNode {
  EFI_GUID                  mGuid;
  CHAR8                     *mVarStoreName;
  EFI_VARSTORE_ID           mVarStoreId;
  BOOLEAN                   mAssignedFlag; //Create varstore opcode
  struct SVfrVarStorageNode *mNext;

  EFI_VFR_VARSTORE_TYPE     mVarStoreType;
  union {
    // EFI Variable
    struct {
      EFI_STRING_ID           mEfiVarName;
      UINT32                  mEfiVarSize;
    } mEfiVar;

    // Buffer Storage
    SVfrDataType            *mDataType;

    // NameValue Storage
  struct {
      EFI_STRING_ID         *mNameTable;
      UINT32                mTableSize;
    } mNameSpace;
  } mStorageInfo;

public:
  SVfrVarStorageNode (IN EFI_GUID *, IN CHAR8 *, IN EFI_VARSTORE_ID, IN EFI_STRING_ID, IN UINT32, IN BOOLEAN Flag = TRUE);
  SVfrVarStorageNode (IN EFI_GUID *, IN CHAR8 *, IN EFI_VARSTORE_ID, IN SVfrDataType *,IN BOOLEAN, IN BOOLEAN Flag = TRUE);
  SVfrVarStorageNode (IN CHAR8 *, IN EFI_VARSTORE_ID);
  ~SVfrVarStorageNode (VOID);

private:
  SVfrVarStorageNode (IN CONST SVfrVarStorageNode&);             // Prevent copy-construction
  SVfrVarStorageNode& operator= (IN CONST SVfrVarStorageNode&);  // Prevent assignment
};

struct EFI_VARSTORE_INFO {
  EFI_VARSTORE_ID           mVarStoreId;
  union {
    EFI_STRING_ID           mVarName;
    UINT16                  mVarOffset;
  } mInfo;
  UINT8                     mVarType;
  UINT32                    mVarTotalSize;
  BOOLEAN                   mIsBitVar;

  EFI_VARSTORE_INFO (VOID);
  EFI_VARSTORE_INFO (IN EFI_VARSTORE_INFO &);
  EFI_VARSTORE_INFO& operator=(IN CONST EFI_VARSTORE_INFO &);
  BOOLEAN operator == (IN EFI_VARSTORE_INFO *);
};

struct BufferVarStoreFieldInfoNode {
  EFI_VARSTORE_INFO  mVarStoreInfo;
  struct BufferVarStoreFieldInfoNode *mNext;

  BufferVarStoreFieldInfoNode( IN EFI_VARSTORE_INFO  *Info );
  ~BufferVarStoreFieldInfoNode ();
};

#define EFI_VARSTORE_ID_MAX              0xFFFF
#define EFI_FREE_VARSTORE_ID_BITMAP_SIZE ((EFI_VARSTORE_ID_MAX + 1) / EFI_BITS_PER_UINT32)

class CVfrDataStorage {
private:
  UINT32                    mFreeVarStoreIdBitMap[EFI_FREE_VARSTORE_ID_BITMAP_SIZE];

  struct SVfrVarStorageNode *mBufferVarStoreList;
  struct SVfrVarStorageNode *mEfiVarStoreList;
  struct SVfrVarStorageNode *mNameVarStoreList;

  struct SVfrVarStorageNode *mCurrVarStorageNode;
  struct SVfrVarStorageNode *mNewVarStorageNode;
  BufferVarStoreFieldInfoNode    *mBufferFieldInfoListHead;
  BufferVarStoreFieldInfoNode    *mBufferFieldInfoListTail;

private:

  EFI_VARSTORE_ID GetFreeVarStoreId (EFI_VFR_VARSTORE_TYPE VarType = EFI_VFR_VARSTORE_BUFFER);
  BOOLEAN         ChekVarStoreIdFree (IN EFI_VARSTORE_ID);
  VOID            MarkVarStoreIdUsed (IN EFI_VARSTORE_ID);
  VOID            MarkVarStoreIdUnused (IN EFI_VARSTORE_ID);
  EFI_VARSTORE_ID CheckGuidField (IN SVfrVarStorageNode *,
                                  IN EFI_GUID *,
                                  IN BOOLEAN *,
                                  OUT EFI_VFR_RETURN_CODE *);

public:
  CVfrDataStorage ();
  ~CVfrDataStorage ();

  SVfrVarStorageNode * GetBufferVarStoreList () {
    return mBufferVarStoreList;
  }
  SVfrVarStorageNode * GetEfiVarStoreList () {
    return mEfiVarStoreList;
  }
  EFI_VFR_RETURN_CODE DeclareNameVarStoreBegin (CHAR8 *, EFI_VARSTORE_ID);
  EFI_VFR_RETURN_CODE NameTableAddItem (EFI_STRING_ID);
  EFI_VFR_RETURN_CODE DeclareNameVarStoreEnd (EFI_GUID *);

  EFI_VFR_RETURN_CODE DeclareEfiVarStore (IN CHAR8 *, IN EFI_GUID *, IN EFI_STRING_ID, IN UINT32, IN BOOLEAN Flag = TRUE);

  EFI_VFR_RETURN_CODE DeclareBufferVarStore (IN CHAR8 *, IN EFI_GUID *, IN CVfrVarDataTypeDB *, IN CHAR8 *, IN EFI_VARSTORE_ID, IN BOOLEAN, IN BOOLEAN Flag = TRUE);

  EFI_VFR_RETURN_CODE GetVarStoreId (IN CHAR8 *, OUT EFI_VARSTORE_ID *, IN EFI_GUID *VarGuid = NULL);
  EFI_VFR_VARSTORE_TYPE GetVarStoreType (IN EFI_VARSTORE_ID);
  EFI_GUID *          GetVarStoreGuid (IN  EFI_VARSTORE_ID);
  EFI_VFR_RETURN_CODE GetVarStoreName (IN EFI_VARSTORE_ID, OUT CHAR8 **);
  EFI_VFR_RETURN_CODE GetVarStoreByDataType (IN CHAR8 *, OUT SVfrVarStorageNode **, IN EFI_GUID *VarGuid = NULL);

  EFI_VFR_RETURN_CODE GetBufferVarStoreDataTypeName (IN EFI_VARSTORE_ID, OUT CHAR8 **);
  EFI_VFR_RETURN_CODE GetEfiVarStoreInfo (IN EFI_VARSTORE_INFO *);
  EFI_VFR_RETURN_CODE GetNameVarStoreInfo (IN EFI_VARSTORE_INFO *, IN UINT32);
  EFI_VFR_RETURN_CODE AddBufferVarStoreFieldInfo (IN EFI_VARSTORE_INFO *);
  EFI_VFR_RETURN_CODE GetBufferVarStoreFieldInfo (IN OUT EFI_VARSTORE_INFO *);

private:
  CVfrDataStorage (IN CONST CVfrDataStorage&);             // Prevent copy-construction
  CVfrDataStorage& operator= (IN CONST CVfrDataStorage&);  // Prevent assignment
};

extern CVfrDataStorage gCVfrDataStorage;

#define EFI_QUESTION_ID_MAX              0xFFFF
#define EFI_FREE_QUESTION_ID_BITMAP_SIZE ((EFI_QUESTION_ID_MAX + 1) / EFI_BITS_PER_UINT32)
#define EFI_QUESTION_ID_INVALID          0x0

#define DATE_YEAR_BITMASK                0x0000FFFF
#define DATE_MONTH_BITMASK               0x00FF0000
#define DATE_DAY_BITMASK                 0xFF000000
#define TIME_HOUR_BITMASK                0x000000FF
#define TIME_MINUTE_BITMASK              0x0000FF00
#define TIME_SECOND_BITMASK              0x00FF0000

struct SVfrQuestionNode {
  CHAR8                     *mName;
  CHAR8                     *mVarIdStr;
  EFI_QUESTION_ID           mQuestionId;
  UINT32                    mBitMask;
  SVfrQuestionNode          *mNext;
  EFI_QUESION_TYPE          mQtype;

  SVfrQuestionNode (IN CHAR8 *, IN CHAR8 *, IN UINT32 BitMask = 0);
  ~SVfrQuestionNode ();

private:
  SVfrQuestionNode (IN CONST SVfrQuestionNode&);             // Prevent copy-construction
  SVfrQuestionNode& operator= (IN CONST SVfrQuestionNode&);  // Prevent assignment
};

class CVfrQuestionDB {
private:
  SVfrQuestionNode          *mQuestionList;
  UINT32                    mFreeQIdBitMap[EFI_FREE_QUESTION_ID_BITMAP_SIZE];

private:
  EFI_QUESTION_ID GetFreeQuestionId (VOID);
  BOOLEAN         ChekQuestionIdFree (IN EFI_QUESTION_ID);
  VOID            MarkQuestionIdUsed (IN EFI_QUESTION_ID);
  VOID            MarkQuestionIdUnused (IN EFI_QUESTION_ID);

public:
  CVfrQuestionDB ();
  ~CVfrQuestionDB();

  EFI_VFR_RETURN_CODE RegisterQuestion (IN CHAR8 *, IN CHAR8 *, IN OUT EFI_QUESTION_ID &);
  VOID                RegisterOldDateQuestion (IN CHAR8 *, IN CHAR8 *, IN CHAR8 *, IN OUT EFI_QUESTION_ID &);
  VOID                RegisterNewDateQuestion (IN CHAR8 *, IN CHAR8 *, IN OUT EFI_QUESTION_ID &);
  VOID                RegisterOldTimeQuestion (IN CHAR8 *, IN CHAR8 *, IN CHAR8 *, IN OUT EFI_QUESTION_ID &);
  VOID                RegisterNewTimeQuestion (IN CHAR8 *, IN CHAR8 *, IN OUT EFI_QUESTION_ID &);
  VOID                RegisterRefQuestion (IN CHAR8 *, IN CHAR8 *, IN OUT EFI_QUESTION_ID &);
  EFI_VFR_RETURN_CODE UpdateQuestionId (IN EFI_QUESTION_ID, IN EFI_QUESTION_ID);
  VOID                GetQuestionId (IN CHAR8 *, IN CHAR8 *, OUT EFI_QUESTION_ID &, OUT UINT32 &, OUT EFI_QUESION_TYPE *QType = NULL);
  EFI_VFR_RETURN_CODE FindQuestion (IN EFI_QUESTION_ID);
  EFI_VFR_RETURN_CODE FindQuestion (IN CHAR8 *);
  VOID                PrintAllQuestion (IN VOID);
  VOID                ResetInit (IN VOID);

private:
  CVfrQuestionDB (IN CONST CVfrQuestionDB&);             // Prevent copy-construction
  CVfrQuestionDB& operator= (IN CONST CVfrQuestionDB&);  // Prevent assignment
};

struct SVfrDefaultStoreNode {
  EFI_IFR_DEFAULTSTORE      *mObjBinAddr;
  CHAR8                     *mRefName;
  EFI_STRING_ID             mDefaultStoreNameId;
  UINT16                    mDefaultId;

  SVfrDefaultStoreNode      *mNext;

  SVfrDefaultStoreNode (IN EFI_IFR_DEFAULTSTORE *, IN CHAR8 *, IN EFI_STRING_ID, IN UINT16);
  ~SVfrDefaultStoreNode();

private:
  SVfrDefaultStoreNode (IN CONST SVfrDefaultStoreNode&);             // Prevent copy-construction
  SVfrDefaultStoreNode& operator= (IN CONST SVfrDefaultStoreNode&);  // Prevent assignment
};

class CVfrDefaultStore {
private:
  SVfrDefaultStoreNode      *mDefaultStoreList;

public:
  CVfrDefaultStore ();
  ~CVfrDefaultStore ();

  EFI_VFR_RETURN_CODE RegisterDefaultStore (IN CHAR8 *, IN CHAR8 *, IN EFI_STRING_ID, IN UINT16);
  EFI_VFR_RETURN_CODE ReRegisterDefaultStoreById (IN UINT16, IN CHAR8 *, IN EFI_STRING_ID);
  BOOLEAN             DefaultIdRegistered (IN UINT16);
  EFI_VFR_RETURN_CODE GetDefaultId (IN CHAR8 *, OUT UINT16 *);
  EFI_VFR_RETURN_CODE BufferVarStoreAltConfigAdd (IN EFI_VARSTORE_ID, IN EFI_VARSTORE_INFO &, IN CHAR8 *, IN EFI_GUID *, IN UINT8, IN EFI_IFR_TYPE_VALUE);

private:
  CVfrDefaultStore (IN CONST CVfrDefaultStore&);             // Prevent copy-construction
  CVfrDefaultStore& operator= (IN CONST CVfrDefaultStore&);  // Prevent assignment
};

extern CVfrDefaultStore gCVfrDefaultStore;

#define EFI_RULE_ID_START    0x01
#define EFI_RULE_ID_INVALID  0x00

struct SVfrRuleNode {
  UINT8                     mRuleId;
  CHAR8                     *mRuleName;
  SVfrRuleNode              *mNext;

  SVfrRuleNode(IN CHAR8 *, IN UINT8);
  ~SVfrRuleNode();

private:
  SVfrRuleNode (IN CONST SVfrRuleNode&);             // Prevent copy-construction
  SVfrRuleNode& operator= (IN CONST SVfrRuleNode&);  // Prevent assignment
};

class CVfrRulesDB {
private:
  SVfrRuleNode              *mRuleList;
  UINT8                     mFreeRuleId;

public:
  CVfrRulesDB ();
  ~CVfrRulesDB();

  VOID RegisterRule (IN CHAR8 *);
  UINT8 GetRuleId (IN CHAR8 *);

private:
  CVfrRulesDB (IN CONST CVfrRulesDB&);             // Prevent copy-construction
  CVfrRulesDB& operator= (IN CONST CVfrRulesDB&);  // Prevent assignment
};

class CVfrStringDB {
private:
  CHAR8   *mStringFileName;

  EFI_STATUS FindStringBlock (
    IN  UINT8            *StringData,
    IN  EFI_STRING_ID    StringId,
    OUT UINT32           *StringTextOffset,
    OUT UINT8            *BlockType
    );

  UINT32 GetUnicodeStringTextSize (
    IN  UINT8            *StringSrc
    );

  BOOLEAN GetBestLanguage (
    IN CONST CHAR8  *SupportedLanguages,
    IN CHAR8        *Language
    );

public:
  CVfrStringDB ();
  ~CVfrStringDB ();

  VOID SetStringFileName (
    IN CHAR8 *StringFileName
    );

  CHAR8 * GetVarStoreNameFormStringId (
    IN EFI_STRING_ID StringId
    );

private:
  CVfrStringDB (IN CONST CVfrStringDB&);             // Prevent copy-construction
  CVfrStringDB& operator= (IN CONST CVfrStringDB&);  // Prevent assignment
};