Renormalized end-of-lines from master@27b044605cd5f6b33a3d231576003850b3fe305btrunk

7 files changed, 2138 insertions, 2138 deletions

diff --git a/MdeModulePkg/Library/FileExplorerLib/FileExplorer.c b/MdeModulePkg/Library/FileExplorerLib/FileExplorer.c
index 804a03d868..5710f2cd09 100644
--- a/MdeModulePkg/Library/FileExplorerLib/FileExplorer.c
+++ b/MdeModulePkg/Library/FileExplorerLib/FileExplorer.c
@@ -1,1666 +1,1666 @@
-/** @file

-File explorer related functions.

-

-Copyright (c) 2004 - 2019, Intel Corporation. All rights reserved.<BR>

-SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#include "FileExplorer.h"

-

-EFI_GUID  FileExplorerGuid = EFI_FILE_EXPLORE_FORMSET_GUID;

-

-///

-/// File system selection menu

-///

-MENU_OPTION  mFsOptionMenu = {

-  MENU_OPTION_SIGNATURE,

-  { NULL },

-  0,

-  FALSE

-};

-

-FILE_EXPLORER_CALLBACK_DATA  gFileExplorerPrivate = {

-  FILE_EXPLORER_CALLBACK_DATA_SIGNATURE,

-  NULL,

-  NULL,

-  {

-    LibExtractConfig,

-    LibRouteConfig,

-    LibCallback

-  },

-  NULL,

-  &mFsOptionMenu,

-  0

-};

-

-HII_VENDOR_DEVICE_PATH  *gHiiVendorDevicePath;

-

-HII_VENDOR_DEVICE_PATH  FeHiiVendorDevicePath = {

-  {

-    {

-      HARDWARE_DEVICE_PATH,

-      HW_VENDOR_DP,

-      {

-        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),

-        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)

-      }

-    },

-    //

-    // Will be replace with gEfiCallerIdGuid in code.

-    //

-    { 0x0, 0x0, 0x0, { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }

-    }

-  },

-  {

-    END_DEVICE_PATH_TYPE,

-    END_ENTIRE_DEVICE_PATH_SUBTYPE,

-    {

-      (UINT8)(END_DEVICE_PATH_LENGTH),

-      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)

-    }

-  }

-};

-

-VOID                *mLibStartOpCodeHandle = NULL;

-VOID                *mLibEndOpCodeHandle   = NULL;

-EFI_IFR_GUID_LABEL  *mLibStartLabel        = NULL;

-EFI_IFR_GUID_LABEL  *mLibEndLabel          = NULL;

-UINT16              mQuestionIdUpdate;

-CHAR16              mNewFileName[MAX_FILE_NAME_LEN];

-CHAR16              mNewFolderName[MAX_FOLDER_NAME_LEN];

-UINTN               mNewFileQuestionId   = NEW_FILE_QUESTION_ID_BASE;

-UINTN               mNewFolderQuestionId = NEW_FOLDER_QUESTION_ID_BASE;

-

-/**

-  Create a new file or folder in current directory.

-

-  @param FileName              Point to the fileNmae or folder.

-  @param CreateFile            CreateFile== TRUE  means create a new file.

-                               CreateFile== FALSE means create a new Folder.

-

-**/

-EFI_STATUS

-LibCreateNewFile (

-  IN CHAR16   *FileName,

-  IN BOOLEAN  CreateFile

-  );

-

-/**

-  This function allows a caller to extract the current configuration for one

-  or more named elements from the target driver.

-

-

-  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.

-  @param Request         A null-terminated Unicode string in <ConfigRequest> format.

-  @param Progress        On return, points to a character in the Request string.

-                         Points to the string's null terminator if request was successful.

-                         Points to the most recent '&' before the first failing name/value

-                         pair (or the beginning of the string if the failure is in the

-                         first name/value pair) if the request was not successful.

-  @param Results         A null-terminated Unicode string in <ConfigAltResp> format which

-                         has all values filled in for the names in the Request string.

-                         String to be allocated by the called function.

-

-  @retval  EFI_INVALID_PARAMETER  Request is illegal syntax, or unknown name.

-  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.

-

-**/

-EFI_STATUS

-EFIAPI

-LibExtractConfig (

-  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,

-  IN  CONST EFI_STRING                      Request,

-  OUT EFI_STRING                            *Progress,

-  OUT EFI_STRING                            *Results

-  )

-{

-  if ((Progress == NULL) || (Results == NULL)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  *Progress = Request;

-  return EFI_NOT_FOUND;

-}

-

-/**

-  This function processes the results of changes in configuration.

-

-

-  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.

-  @param Configuration   A null-terminated Unicode string in <ConfigResp> format.

-  @param Progress        A pointer to a string filled in with the offset of the most

-                         recent '&' before the first failing name/value pair (or the

-                         beginning of the string if the failure is in the first

-                         name/value pair) or the terminating NULL if all was successful.

-

-  @retval  EFI_INVALID_PARAMETER  Configuration is NULL.

-  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.

-

-**/

-EFI_STATUS

-EFIAPI

-LibRouteConfig (

-  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,

-  IN  CONST EFI_STRING                      Configuration,

-  OUT EFI_STRING                            *Progress

-  )

-{

-  if ((Configuration == NULL) || (Progress == NULL)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  *Progress = Configuration;

-  return EFI_NOT_FOUND;

-}

-

-/**

-  This function processes the results of changes in configuration.

-  When user select a interactive opcode, this callback will be triggered.

-  Based on the Question(QuestionId) that triggers the callback, the corresponding

-  actions is performed. It handles:

-

-  1) Process the axtra action or exit file explorer when user select one file .

-  2) update of file content if a dir is selected.

-

-  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.

-  @param Action          Specifies the type of action taken by the browser.

-  @param QuestionId      A unique value which is sent to the original exporting driver

-                         so that it can identify the type of data to expect.

-  @param Type            The type of value for the question.

-  @param Value           A pointer to the data being sent to the original exporting driver.

-  @param ActionRequest   On return, points to the action requested by the callback function.

-

-  @retval  EFI_SUCCESS           The callback successfully handled the action.

-  @retval  other error           Error occur when parse one directory.

-**/

-EFI_STATUS

-EFIAPI

-LibCallback (

-  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,

-  IN  EFI_BROWSER_ACTION                    Action,

-  IN  EFI_QUESTION_ID                       QuestionId,

-  IN  UINT8                                 Type,

-  IN  EFI_IFR_TYPE_VALUE                    *Value,

-  OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest

-  )

-{

-  EFI_STATUS  Status;

-  BOOLEAN     NeedExit;

-  CHAR16      *NewFileName;

-  CHAR16      *NewFolderName;

-

-  NeedExit      = TRUE;

-  NewFileName   = NULL;

-  NewFolderName = NULL;

-

-  if ((Action != EFI_BROWSER_ACTION_CHANGING) && (Action != EFI_BROWSER_ACTION_CHANGED)) {

-    //

-    // Do nothing for other UEFI Action. Only do call back when data is changed.

-    //

-    return EFI_UNSUPPORTED;

-  }

-

-  if (Action == EFI_BROWSER_ACTION_CHANGED) {

-    if ((Value == NULL) || (ActionRequest == NULL)) {

-      return EFI_INVALID_PARAMETER;

-    }

-

-    if (QuestionId == KEY_VALUE_CREATE_FILE_AND_EXIT) {

-      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;

-      if (!IsZeroBuffer (mNewFileName, sizeof (mNewFileName))) {

-        Status = LibCreateNewFile (mNewFileName, TRUE);

-        ZeroMem (mNewFileName, sizeof (mNewFileName));

-      }

-    }

-

-    if (QuestionId == KEY_VALUE_NO_CREATE_FILE_AND_EXIT) {

-      ZeroMem (mNewFileName, sizeof (mNewFileName));

-      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;

-    }

-

-    if (QuestionId == KEY_VALUE_CREATE_FOLDER_AND_EXIT) {

-      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;

-      if (!IsZeroBuffer (mNewFolderName, sizeof (mNewFolderName))) {

-        Status = LibCreateNewFile (mNewFolderName, FALSE);

-        ZeroMem (mNewFolderName, sizeof (mNewFolderName));

-      }

-    }

-

-    if (QuestionId == KEY_VALUE_NO_CREATE_FOLDER_AND_EXIT) {

-      ZeroMem (mNewFolderName, sizeof (mNewFolderName));

-      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;

-    }

-

-    if (QuestionId == NEW_FILE_NAME_ID) {

-      NewFileName = HiiGetString (gFileExplorerPrivate.FeHiiHandle, Value->string, NULL);

-      if (NewFileName != NULL) {

-        StrCpyS (mNewFileName, MAX_FILE_NAME_LEN, NewFileName);

-        FreePool (NewFileName);

-        NewFileName = NULL;

-      } else {

-        return EFI_INVALID_PARAMETER;

-      }

-    }

-

-    if (QuestionId == NEW_FOLDER_NAME_ID) {

-      NewFolderName = HiiGetString (gFileExplorerPrivate.FeHiiHandle, Value->string, NULL);

-      if (NewFolderName != NULL) {

-        StrCpyS (mNewFolderName, MAX_FOLDER_NAME_LEN, NewFolderName);

-        FreePool (NewFolderName);

-        NewFolderName = NULL;

-      } else {

-        return EFI_INVALID_PARAMETER;

-      }

-    }

-

-    if (QuestionId >= FILE_OPTION_OFFSET) {

-      LibGetDevicePath (QuestionId);

-

-      //

-      // Process the extra action.

-      //

-      if (gFileExplorerPrivate.ChooseHandler != NULL) {

-        NeedExit = gFileExplorerPrivate.ChooseHandler (gFileExplorerPrivate.RetDevicePath);

-      }

-

-      if (NeedExit) {

-        *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;

-      }

-    }

-  } else if (Action == EFI_BROWSER_ACTION_CHANGING) {

-    if (Value == NULL) {

-      return EFI_INVALID_PARAMETER;

-    }

-

-    if (QuestionId >= FILE_OPTION_OFFSET) {

-      LibGetDevicePath (QuestionId);

-      Status = LibUpdateFileExplorer (QuestionId);

-      if (EFI_ERROR (Status)) {

-        return Status;

-      }

-    }

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Create a menu entry by given menu type.

-

-  @retval NULL           If failed to create the menu.

-  @return the new menu entry.

-

-**/

-MENU_ENTRY *

-LibCreateMenuEntry (

-  VOID

-  )

-{

-  MENU_ENTRY  *MenuEntry;

-

-  //

-  // Create new menu entry

-  //

-  MenuEntry = AllocateZeroPool (sizeof (MENU_ENTRY));

-  if (MenuEntry == NULL) {

-    return NULL;

-  }

-

-  MenuEntry->VariableContext = AllocateZeroPool (sizeof (FILE_CONTEXT));

-  if (MenuEntry->VariableContext == NULL) {

-    FreePool (MenuEntry);

-    return NULL;

-  }

-

-  MenuEntry->Signature = MENU_ENTRY_SIGNATURE;

-  return MenuEntry;

-}

-

-/**

-  Get the Menu Entry from the list in Menu Entry List.

-

-  If MenuNumber is great or equal to the number of Menu

-  Entry in the list, then ASSERT.

-

-  @param MenuOption      The Menu Entry List to read the menu entry.

-  @param MenuNumber      The index of Menu Entry.

-

-  @return The Menu Entry.

-

-**/

-MENU_ENTRY *

-LibGetMenuEntry (

-  MENU_OPTION  *MenuOption,

-  UINTN        MenuNumber

-  )

-{

-  MENU_ENTRY  *NewMenuEntry;

-  UINTN       Index;

-  LIST_ENTRY  *List;

-

-  ASSERT (MenuNumber < MenuOption->MenuNumber);

-

-  List = MenuOption->Head.ForwardLink;

-  for (Index = 0; Index < MenuNumber; Index++) {

-    List = List->ForwardLink;

-  }

-

-  NewMenuEntry = CR (List, MENU_ENTRY, Link, MENU_ENTRY_SIGNATURE);

-

-  return NewMenuEntry;

-}

-

-/**

-  Free up all resource allocated for a BM_MENU_ENTRY.

-

-  @param MenuEntry   A pointer to BM_MENU_ENTRY.

-

-**/

-VOID

-LibDestroyMenuEntry (

-  MENU_ENTRY  *MenuEntry

-  )

-{

-  FILE_CONTEXT  *FileContext;

-

-  FileContext = (FILE_CONTEXT *)MenuEntry->VariableContext;

-

-  if (!FileContext->IsRoot) {

-    if (FileContext->DevicePath != NULL) {

-      FreePool (FileContext->DevicePath);

-    }

-  } else {

-    if (FileContext->FileHandle != NULL) {

-      FileContext->FileHandle->Close (FileContext->FileHandle);

-    }

-  }

-

-  if (FileContext->FileName != NULL) {

-    FreePool (FileContext->FileName);

-  }

-

-  FreePool (FileContext);

-

-  if (MenuEntry->DisplayString != NULL) {

-    FreePool (MenuEntry->DisplayString);

-  }

-

-  if (MenuEntry->HelpString != NULL) {

-    FreePool (MenuEntry->HelpString);

-  }

-

-  FreePool (MenuEntry);

-}

-

-/**

-  Free resources allocated in Allocate Rountine.

-

-  @param FreeMenu        Menu to be freed

-**/

-VOID

-LibFreeMenu (

-  MENU_OPTION  *FreeMenu

-  )

-{

-  MENU_ENTRY  *MenuEntry;

-

-  while (!IsListEmpty (&FreeMenu->Head)) {

-    MenuEntry = CR (

-                  FreeMenu->Head.ForwardLink,

-                  MENU_ENTRY,

-                  Link,

-                  MENU_ENTRY_SIGNATURE

-                  );

-    RemoveEntryList (&MenuEntry->Link);

-    LibDestroyMenuEntry (MenuEntry);

-  }

-

-  FreeMenu->MenuNumber = 0;

-}

-

-/**

-

-  Function opens and returns a file handle to the root directory of a volume.

-

-  @param DeviceHandle    A handle for a device

-

-  @return A valid file handle or NULL is returned

-

-**/

-EFI_FILE_HANDLE

-LibOpenRoot (

-  IN EFI_HANDLE  DeviceHandle

-  )

-{

-  EFI_STATUS                       Status;

-  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL  *Volume;

-  EFI_FILE_HANDLE                  File;

-

-  File = NULL;

-

-  //

-  // File the file system interface to the device

-  //

-  Status = gBS->HandleProtocol (

-                  DeviceHandle,

-                  &gEfiSimpleFileSystemProtocolGuid,

-                  (VOID *)&Volume

-                  );

-

-  //

-  // Open the root directory of the volume

-  //

-  if (!EFI_ERROR (Status)) {

-    Status = Volume->OpenVolume (

-                       Volume,

-                       &File

-                       );

-  }

-

-  //

-  // Done

-  //

-  return EFI_ERROR (Status) ? NULL : File;

-}

-

-/**

-  This function converts an input device structure to a Unicode string.

-

-  @param DevPath                  A pointer to the device path structure.

-

-  @return A new allocated Unicode string that represents the device path.

-

-**/

-CHAR16 *

-LibDevicePathToStr (

-  IN EFI_DEVICE_PATH_PROTOCOL  *DevPath

-  )

-{

-  EFI_STATUS                        Status;

-  CHAR16                            *ToText;

-  EFI_DEVICE_PATH_TO_TEXT_PROTOCOL  *DevPathToText;

-

-  if (DevPath == NULL) {

-    return NULL;

-  }

-

-  Status = gBS->LocateProtocol (

-                  &gEfiDevicePathToTextProtocolGuid,

-                  NULL,

-                  (VOID **)&DevPathToText

-                  );

-  ASSERT_EFI_ERROR (Status);

-  ToText = DevPathToText->ConvertDevicePathToText (

-                            DevPath,

-                            FALSE,

-                            TRUE

-                            );

-  ASSERT (ToText != NULL);

-

-  return ToText;

-}

-

-/**

-  Duplicate a string.

-

-  @param Src             The source.

-

-  @return A new string which is duplicated copy of the source.

-  @retval NULL If there is not enough memory.

-

-**/

-CHAR16 *

-LibStrDuplicate (

-  IN CHAR16  *Src

-  )

-{

-  CHAR16  *Dest;

-  UINTN   Size;

-

-  Size = StrSize (Src);

-  Dest = AllocateZeroPool (Size);

-  ASSERT (Dest != NULL);

-  if (Dest != NULL) {

-    CopyMem (Dest, Src, Size);

-  }

-

-  return Dest;

-}

-

-/**

-

-  Function gets the file information from an open file descriptor, and stores it

-  in a buffer allocated from pool.

-

-  @param FHand           File Handle.

-  @param InfoType        Info type need to get.

-

-  @retval                A pointer to a buffer with file information or NULL is returned

-

-**/

-VOID *

-LibFileInfo (

-  IN EFI_FILE_HANDLE  FHand,

-  IN EFI_GUID         *InfoType

-  )

-{

-  EFI_STATUS     Status;

-  EFI_FILE_INFO  *Buffer;

-  UINTN          BufferSize;

-

-  Buffer     = NULL;

-  BufferSize = 0;

-

-  Status = FHand->GetInfo (

-                    FHand,

-                    InfoType,

-                    &BufferSize,

-                    Buffer

-                    );

-  if (Status == EFI_BUFFER_TOO_SMALL) {

-    Buffer = AllocatePool (BufferSize);

-    ASSERT (Buffer != NULL);

-  }

-

-  Status = FHand->GetInfo (

-                    FHand,

-                    InfoType,

-                    &BufferSize,

-                    Buffer

-                    );

-

-  return Buffer;

-}

-

-/**

-

-  Get file type base on the file name.

-  Just cut the file name, from the ".". eg ".efi"

-

-  @param FileName  File need to be checked.

-

-  @retval the file type string.

-

-**/

-CHAR16 *

-LibGetTypeFromName (

-  IN CHAR16  *FileName

-  )

-{

-  UINTN  Index;

-

-  Index = StrLen (FileName) - 1;

-  while ((FileName[Index] != L'.') && (Index != 0)) {

-    Index--;

-  }

-

-  return Index == 0 ? NULL : &FileName[Index];

-}

-

-/**

-  Converts the unicode character of the string from uppercase to lowercase.

-  This is a internal function.

-

-  @param ConfigString  String to be converted

-

-**/

-VOID

-LibToLowerString (

-  IN CHAR16  *String

-  )

-{

-  CHAR16  *TmpStr;

-

-  for (TmpStr = String; *TmpStr != L'\0'; TmpStr++) {

-    if ((*TmpStr >= L'A') && (*TmpStr <= L'Z')) {

-      *TmpStr = (CHAR16)(*TmpStr - L'A' + L'a');

-    }

-  }

-}

-

-/**

-

-  Check whether current FileName point to a valid

-  Efi Image File.

-

-  @param FileName  File need to be checked.

-

-  @retval TRUE  Is Efi Image

-  @retval FALSE Not a valid Efi Image

-

-**/

-BOOLEAN

-LibIsSupportedFileType (

-  IN UINT16  *FileName

-  )

-{

-  CHAR16   *InputFileType;

-  CHAR16   *TmpStr;

-  BOOLEAN  IsSupported;

-

-  if (gFileExplorerPrivate.FileType == NULL) {

-    return TRUE;

-  }

-

-  InputFileType = LibGetTypeFromName (FileName);

-  //

-  // If the file not has *.* style, always return TRUE.

-  //

-  if (InputFileType == NULL) {

-    return TRUE;

-  }

-

-  TmpStr = AllocateCopyPool (StrSize (InputFileType), InputFileType);

-  ASSERT (TmpStr != NULL);

-  LibToLowerString (TmpStr);

-

-  IsSupported = (StrStr (gFileExplorerPrivate.FileType, TmpStr) == NULL ? FALSE : TRUE);

-

-  FreePool (TmpStr);

-  return IsSupported;

-}

-

-/**

-

-  Append file name to existing file name.

-

-  @param Str1  The existing file name

-  @param Str2  The file name to be appended

-

-  @return Allocate a new string to hold the appended result.

-          Caller is responsible to free the returned string.

-

-**/

-CHAR16 *

-LibAppendFileName (

-  IN  CHAR16  *Str1,

-  IN  CHAR16  *Str2

-  )

-{

-  UINTN   Size1;

-  UINTN   Size2;

-  UINTN   MaxLen;

-  CHAR16  *Str;

-  CHAR16  *TmpStr;

-  CHAR16  *Ptr;

-  CHAR16  *LastSlash;

-

-  Size1 = StrSize (Str1);

-  Size2 = StrSize (Str2);

-

-  //

-  // Check overflow

-  //

-  if (((MAX_UINTN - Size1) < Size2) || ((MAX_UINTN - Size1 - Size2) < sizeof (CHAR16))) {

-    return NULL;

-  }

-

-  MaxLen = (Size1 + Size2 + sizeof (CHAR16))/ sizeof (CHAR16);

-  Str    = AllocateZeroPool (Size1 + Size2 + sizeof (CHAR16));

-  ASSERT (Str != NULL);

-

-  TmpStr = AllocateZeroPool (Size1 + Size2 + sizeof (CHAR16));

-  ASSERT (TmpStr != NULL);

-

-  StrCpyS (Str, MaxLen, Str1);

-  if (!((*Str == '\\') && (*(Str + 1) == 0))) {

-    StrCatS (Str, MaxLen, L"\\");

-  }

-

-  StrCatS (Str, MaxLen, Str2);

-

-  Ptr       = Str;

-  LastSlash = Str;

-  while (*Ptr != 0) {

-    if ((*Ptr == '\\') && (*(Ptr + 1) == '.') && (*(Ptr + 2) == '.') && (*(Ptr + 3) == L'\\')) {

-      //

-      // Convert "\Name\..\" to "\"

-      // DO NOT convert the .. if it is at the end of the string. This will

-      // break the .. behavior in changing directories.

-      //

-

-      //

-      // Use TmpStr as a backup, as StrCpyS in BaseLib does not handle copy of two strings

-      // that overlap.

-      //

-      StrCpyS (TmpStr, MaxLen, Ptr + 3);

-      StrCpyS (LastSlash, MaxLen - ((UINTN)LastSlash - (UINTN)Str) / sizeof (CHAR16), TmpStr);

-      Ptr = LastSlash;

-    } else if ((*Ptr == '\\') && (*(Ptr + 1) == '.') && (*(Ptr + 2) == '\\')) {

-      //

-      // Convert a "\.\" to a "\"

-      //

-

-      //

-      // Use TmpStr as a backup, as StrCpyS in BaseLib does not handle copy of two strings

-      // that overlap.

-      //

-      StrCpyS (TmpStr, MaxLen, Ptr + 2);

-      StrCpyS (Ptr, MaxLen - ((UINTN)Ptr - (UINTN)Str) / sizeof (CHAR16), TmpStr);

-      Ptr = LastSlash;

-    } else if (*Ptr == '\\') {

-      LastSlash = Ptr;

-    }

-

-    Ptr++;

-  }

-

-  FreePool (TmpStr);

-

-  return Str;

-}

-

-/**

-  This function build the FsOptionMenu list which records all

-  available file system in the system. They includes all instances

-  of EFI_SIMPLE_FILE_SYSTEM_PROTOCOL, all instances of EFI_LOAD_FILE_SYSTEM.

-

-

-  @retval  EFI_SUCCESS             Success find the file system

-  @retval  EFI_OUT_OF_RESOURCES    Can not create menu entry

-

-**/

-EFI_STATUS

-LibFindFileSystem (

-  VOID

-  )

-{

-  UINTN                         NoSimpleFsHandles;

-  EFI_HANDLE                    *SimpleFsHandle;

-  UINT16                        *VolumeLabel;

-  UINTN                         Index;

-  EFI_STATUS                    Status;

-  MENU_ENTRY                    *MenuEntry;

-  FILE_CONTEXT                  *FileContext;

-  UINTN                         OptionNumber;

-  EFI_FILE_SYSTEM_VOLUME_LABEL  *Info;

-

-  NoSimpleFsHandles = 0;

-  OptionNumber      = 0;

-

-  //

-  // Locate Handles that support Simple File System protocol

-  //

-  Status = gBS->LocateHandleBuffer (

-                  ByProtocol,

-                  &gEfiSimpleFileSystemProtocolGuid,

-                  NULL,

-                  &NoSimpleFsHandles,

-                  &SimpleFsHandle

-                  );

-  if (!EFI_ERROR (Status)) {

-    //

-    // Find all the instances of the File System prototocol

-    //

-    for (Index = 0; Index < NoSimpleFsHandles; Index++) {

-      //

-      // Allocate pool for this load option

-      //

-      MenuEntry = LibCreateMenuEntry ();

-      if (NULL == MenuEntry) {

-        FreePool (SimpleFsHandle);

-        return EFI_OUT_OF_RESOURCES;

-      }

-

-      FileContext               = (FILE_CONTEXT *)MenuEntry->VariableContext;

-      FileContext->DeviceHandle = SimpleFsHandle[Index];

-      FileContext->FileHandle   = LibOpenRoot (FileContext->DeviceHandle);

-      if (FileContext->FileHandle == NULL) {

-        LibDestroyMenuEntry (MenuEntry);

-        continue;

-      }

-

-      MenuEntry->HelpString   = LibDevicePathToStr (DevicePathFromHandle (FileContext->DeviceHandle));

-      FileContext->FileName   = LibStrDuplicate (L"\\");

-      FileContext->DevicePath = FileDevicePath (FileContext->DeviceHandle, FileContext->FileName);

-      FileContext->IsDir      = TRUE;

-      FileContext->IsRoot     = TRUE;

-

-      //

-      // Get current file system's Volume Label

-      //

-      Info = (EFI_FILE_SYSTEM_VOLUME_LABEL *)LibFileInfo (FileContext->FileHandle, &gEfiFileSystemVolumeLabelInfoIdGuid);

-      if (Info == NULL) {

-        VolumeLabel = L"NO FILE SYSTEM INFO";

-      } else {

-        VolumeLabel = Info->VolumeLabel;

-        if (*VolumeLabel == 0x0000) {

-          VolumeLabel = L"NO VOLUME LABEL";

-        }

-      }

-

-      MenuEntry->DisplayString = AllocateZeroPool (MAX_CHAR);

-      ASSERT (MenuEntry->DisplayString != NULL);

-      UnicodeSPrint (

-        MenuEntry->DisplayString,

-        MAX_CHAR,

-        L"%s, [%s]",

-        VolumeLabel,

-        MenuEntry->HelpString

-        );

-      MenuEntry->DisplayStringToken = HiiSetString (

-                                        gFileExplorerPrivate.FeHiiHandle,

-                                        0,

-                                        MenuEntry->DisplayString,

-                                        NULL

-                                        );

-

-      if (Info != NULL) {

-        FreePool (Info);

-      }

-

-      OptionNumber++;

-      InsertTailList (&gFileExplorerPrivate.FsOptionMenu->Head, &MenuEntry->Link);

-    }

-  }

-

-  if (NoSimpleFsHandles != 0) {

-    FreePool (SimpleFsHandle);

-  }

-

-  gFileExplorerPrivate.FsOptionMenu->MenuNumber = OptionNumber;

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Find the file handle from the input menu info.

-

-  @param  MenuEntry        Input Menu info.

-  @param  RetFileHandle    Return the file handle for the input device path.

-

-  @retval EFI_SUCESS       Find the file handle success.

-  @retval Other            Find the file handle failure.

-**/

-EFI_STATUS

-LibGetFileHandleFromMenu (

-  IN  MENU_ENTRY       *MenuEntry,

-  OUT EFI_FILE_HANDLE  *RetFileHandle

-  )

-{

-  EFI_FILE_HANDLE  Dir;

-  EFI_FILE_HANDLE  NewDir;

-  FILE_CONTEXT     *FileContext;

-  EFI_STATUS       Status;

-

-  FileContext = (FILE_CONTEXT *)MenuEntry->VariableContext;

-  Dir         = FileContext->FileHandle;

-

-  //

-  // Open current directory to get files from it

-  //

-  Status = Dir->Open (

-                  Dir,

-                  &NewDir,

-                  FileContext->FileName,

-                  EFI_FILE_READ_ONLY,

-                  0

-                  );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  if (!FileContext->IsRoot) {

-    Dir->Close (Dir);

-  }

-

-  *RetFileHandle = NewDir;

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Find the file handle from the input device path info.

-

-  @param  RootDirectory    Device path info.

-  @param  RetFileHandle    Return the file handle for the input device path.

-  @param  ParentFileName   Parent file name.

-  @param  DeviceHandle     Driver handle for this partition.

-

-  @retval EFI_SUCESS       Find the file handle success.

-  @retval Other            Find the file handle failure.

-**/

-EFI_STATUS

-LibGetFileHandleFromDevicePath (

-  IN  EFI_DEVICE_PATH_PROTOCOL  *RootDirectory,

-  OUT EFI_FILE_HANDLE           *RetFileHandle,

-  OUT UINT16                    **ParentFileName,

-  OUT EFI_HANDLE                *DeviceHandle

-  )

-{

-  EFI_DEVICE_PATH_PROTOCOL         *DevicePathNode;

-  EFI_DEVICE_PATH_PROTOCOL         *TempDevicePathNode;

-  EFI_STATUS                       Status;

-  EFI_HANDLE                       Handle;

-  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL  *Volume;

-  EFI_FILE_HANDLE                  FileHandle;

-  EFI_FILE_HANDLE                  LastHandle;

-  CHAR16                           *TempPath;

-

-  *ParentFileName = NULL;

-

-  //

-  // Attempt to access the file via a file system interface

-  //

-  DevicePathNode = RootDirectory;

-  Status         = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &DevicePathNode, &Handle);

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  Status = gBS->HandleProtocol (Handle, &gEfiSimpleFileSystemProtocolGuid, (VOID **)&Volume);

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Open the Volume to get the File System handle

-  //

-  Status = Volume->OpenVolume (Volume, &FileHandle);

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  *DeviceHandle = Handle;

-

-  if (IsDevicePathEnd (DevicePathNode)) {

-    *ParentFileName = AllocateCopyPool (StrSize (L"\\"), L"\\");

-    *RetFileHandle  = FileHandle;

-    return EFI_SUCCESS;

-  }

-

-  //

-  // Duplicate the device path to avoid the access to unaligned device path node.

-  // Because the device path consists of one or more FILE PATH MEDIA DEVICE PATH

-  // nodes, It assures the fields in device path nodes are 2 byte aligned.

-  //

-  TempDevicePathNode = DuplicateDevicePath (DevicePathNode);

-  if (TempDevicePathNode == NULL) {

-    //

-    // Setting Status to an EFI_ERROR value will cause the rest of

-    // the file system support below to be skipped.

-    //

-    Status = EFI_OUT_OF_RESOURCES;

-    goto Done;

-  }

-

-  //

-  // Parse each MEDIA_FILEPATH_DP node. There may be more than one, since the

-  // directory information and filename can be seperate. The goal is to inch

-  // our way down each device path node and close the previous node

-  //

-  DevicePathNode = TempDevicePathNode;

-  while (!EFI_ERROR (Status) && !IsDevicePathEnd (DevicePathNode)) {

-    if ((DevicePathType (DevicePathNode) != MEDIA_DEVICE_PATH) ||

-        (DevicePathSubType (DevicePathNode) != MEDIA_FILEPATH_DP))

-    {

-      Status = EFI_UNSUPPORTED;

-      goto Done;

-    }

-

-    LastHandle = FileHandle;

-    FileHandle = NULL;

-

-    Status = LastHandle->Open (

-                           LastHandle,

-                           &FileHandle,

-                           ((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName,

-                           EFI_FILE_MODE_READ,

-                           0

-                           );

-    if (*ParentFileName == NULL) {

-      *ParentFileName = AllocateCopyPool (StrSize (((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName), ((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName);

-    } else {

-      TempPath = LibAppendFileName (*ParentFileName, ((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName);

-      if (TempPath == NULL) {

-        LastHandle->Close (LastHandle);

-        Status = EFI_OUT_OF_RESOURCES;

-        goto Done;

-      }

-

-      FreePool (*ParentFileName);

-      *ParentFileName = TempPath;

-    }

-

-    //

-    // Close the previous node

-    //

-    LastHandle->Close (LastHandle);

-

-    DevicePathNode = NextDevicePathNode (DevicePathNode);

-  }

-

-  if (EFI_ERROR (Status)) {

-    goto Done;

-  }

-

-  *RetFileHandle = FileHandle;

-

-  Status = EFI_SUCCESS;

-

-Done:

-  if (TempDevicePathNode != NULL) {

-    FreePool (TempDevicePathNode);

-  }

-

-  if ((FileHandle != NULL) && (EFI_ERROR (Status))) {

-    FileHandle->Close (FileHandle);

-  }

-

-  return Status;

-}

-

-/**

-  Create a new file or folder in current directory.

-

-  @param FileName              Point to the fileNmae or folder name.

-  @param CreateFile            CreateFile== TRUE  means create a new file.

-                               CreateFile== FALSE means create a new Folder.

-

-**/

-EFI_STATUS

-LibCreateNewFile (

-  IN CHAR16   *FileName,

-  IN BOOLEAN  CreateFile

-  )

-{

-  EFI_FILE_HANDLE  FileHandle;

-  EFI_FILE_HANDLE  NewHandle;

-  EFI_HANDLE       DeviceHandle;

-  EFI_STATUS       Status;

-  CHAR16           *ParentName;

-  CHAR16           *FullFileName;

-

-  NewHandle    = NULL;

-  FullFileName = NULL;

-

-  if (EFI_ERROR (LibGetFileHandleFromDevicePath (gFileExplorerPrivate.RetDevicePath, &FileHandle, &ParentName, &DeviceHandle))) {

-    return EFI_DEVICE_ERROR;

-  }

-

-  FullFileName = LibAppendFileName (ParentName, FileName);

-  if (FullFileName == NULL) {

-    return EFI_OUT_OF_RESOURCES;

-  }

-

-  if (CreateFile) {

-    Status = FileHandle->Open (

-                           FileHandle,

-                           &NewHandle,

-                           FullFileName,

-                           EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE| EFI_FILE_MODE_CREATE,

-                           0

-                           );

-    if (EFI_ERROR (Status)) {

-      FileHandle->Close (FileHandle);

-      return Status;

-    }

-  } else {

-    Status = FileHandle->Open (

-                           FileHandle,

-                           &NewHandle,

-                           FullFileName,

-                           EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE| EFI_FILE_MODE_CREATE,

-                           EFI_FILE_DIRECTORY

-                           );

-    if (EFI_ERROR (Status)) {

-      FileHandle->Close (FileHandle);

-      return Status;

-    }

-  }

-

-  FileHandle->Close (FileHandle);

-

-  //

-  // Return the DevicePath of the new created file or folder.

-  //

-  gFileExplorerPrivate.RetDevicePath = FileDevicePath (DeviceHandle, FullFileName);

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Find files under current directory.

-

-  All files and sub-directories in current directory

-  will be stored in DirectoryMenu for future use.

-

-  @param FileHandle    Parent file handle.

-  @param FileName      Parent file name.

-  @param DeviceHandle  Driver handle for this partition.

-

-  @retval EFI_SUCCESS         Get files from current dir successfully.

-  @return Other value if can't get files from current dir.

-

-**/

-EFI_STATUS

-LibFindFiles (

-  IN EFI_FILE_HANDLE  FileHandle,

-  IN UINT16           *FileName,

-  IN EFI_HANDLE       DeviceHandle

-  )

-{

-  EFI_FILE_INFO  *DirInfo;

-  UINTN          BufferSize;

-  UINTN          DirBufferSize;

-  MENU_ENTRY     *NewMenuEntry;

-  FILE_CONTEXT   *NewFileContext;

-  UINTN          Pass;

-  EFI_STATUS     Status;

-  UINTN          OptionNumber;

-

-  OptionNumber = 0;

-

-  DirBufferSize = sizeof (EFI_FILE_INFO) + 1024;

-  DirInfo       = AllocateZeroPool (DirBufferSize);

-  if (DirInfo == NULL) {

-    return EFI_OUT_OF_RESOURCES;

-  }

-

-  //

-  // Get all files in current directory

-  // Pass 1 to get Directories

-  // Pass 2 to get files that are EFI images

-  //

-  Status = EFI_SUCCESS;

-  for (Pass = 1; Pass <= 2; Pass++) {

-    FileHandle->SetPosition (FileHandle, 0);

-    for ( ; ;) {

-      BufferSize = DirBufferSize;

-      Status     = FileHandle->Read (FileHandle, &BufferSize, DirInfo);

-      if (EFI_ERROR (Status) || (BufferSize == 0)) {

-        Status = EFI_SUCCESS;

-        break;

-      }

-

-      if ((((DirInfo->Attribute & EFI_FILE_DIRECTORY) != 0) && (Pass == 2)) ||

-          (((DirInfo->Attribute & EFI_FILE_DIRECTORY) == 0) && (Pass == 1))

-          )

-      {

-        //

-        // Pass 1 is for Directories

-        // Pass 2 is for file names

-        //

-        continue;

-      }

-

-      if (!(((DirInfo->Attribute & EFI_FILE_DIRECTORY) != 0) || LibIsSupportedFileType (DirInfo->FileName))) {

-        //

-        // Slip file unless it is a directory entry or a .EFI file

-        //

-        continue;

-      }

-

-      NewMenuEntry = LibCreateMenuEntry ();

-      if (NULL == NewMenuEntry) {

-        Status = EFI_OUT_OF_RESOURCES;

-        goto Done;

-      }

-

-      NewFileContext               = (FILE_CONTEXT *)NewMenuEntry->VariableContext;

-      NewFileContext->DeviceHandle = DeviceHandle;

-      NewFileContext->FileName     = LibAppendFileName (FileName, DirInfo->FileName);

-      if (NewFileContext->FileName == NULL) {

-        LibDestroyMenuEntry (NewMenuEntry);

-        Status = EFI_OUT_OF_RESOURCES;

-        goto Done;

-      }

-

-      NewFileContext->FileHandle = FileHandle;

-      NewFileContext->DevicePath = FileDevicePath (NewFileContext->DeviceHandle, NewFileContext->FileName);

-      NewMenuEntry->HelpString   = NULL;

-      NewFileContext->IsDir      = (BOOLEAN)((DirInfo->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY);

-

-      if (NewFileContext->IsDir) {

-        BufferSize                  = StrLen (DirInfo->FileName) * 2 + 6;

-        NewMenuEntry->DisplayString = AllocateZeroPool (BufferSize);

-        UnicodeSPrint (

-          NewMenuEntry->DisplayString,

-          BufferSize,

-          L"<%s>",

-          DirInfo->FileName

-          );

-      } else {

-        NewMenuEntry->DisplayString = LibStrDuplicate (DirInfo->FileName);

-      }

-

-      NewMenuEntry->DisplayStringToken = HiiSetString (

-                                           gFileExplorerPrivate.FeHiiHandle,

-                                           0,

-                                           NewMenuEntry->DisplayString,

-                                           NULL

-                                           );

-

-      NewFileContext->IsRoot = FALSE;

-

-      OptionNumber++;

-      InsertTailList (&gFileExplorerPrivate.FsOptionMenu->Head, &NewMenuEntry->Link);

-    }

-  }

-

-  gFileExplorerPrivate.FsOptionMenu->MenuNumber = OptionNumber;

-

-Done:

-

-  FreePool (DirInfo);

-

-  return Status;

-}

-

-/**

-  Refresh the global UpdateData structure.

-

-**/

-VOID

-LibRefreshUpdateData (

-  VOID

-  )

-{

-  //

-  // Free current updated date

-  //

-  if (mLibStartOpCodeHandle != NULL) {

-    HiiFreeOpCodeHandle (mLibStartOpCodeHandle);

-  }

-

-  if (mLibEndOpCodeHandle != NULL) {

-    HiiFreeOpCodeHandle (mLibEndOpCodeHandle);

-  }

-

-  //

-  // Create new OpCode Handle

-  //

-  mLibStartOpCodeHandle = HiiAllocateOpCodeHandle ();

-  mLibEndOpCodeHandle   = HiiAllocateOpCodeHandle ();

-

-  //

-  // Create Hii Extend Label OpCode as the start opcode

-  //

-  mLibStartLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (

-                                           mLibStartOpCodeHandle,

-                                           &gEfiIfrTianoGuid,

-                                           NULL,

-                                           sizeof (EFI_IFR_GUID_LABEL)

-                                           );

-  mLibStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;

-

-  mLibStartLabel->Number = FORM_FILE_EXPLORER_ID;

-

-  //

-  // Create Hii Extend Label OpCode as the start opcode

-  //

-  mLibEndLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (

-                                         mLibEndOpCodeHandle,

-                                         &gEfiIfrTianoGuid,

-                                         NULL,

-                                         sizeof (EFI_IFR_GUID_LABEL)

-                                         );

-  mLibEndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;

-

-  mLibEndLabel->Number = LABEL_END;

-}

-

-/**

-

-  Update the File Explore page.

-

-**/

-VOID

-LibUpdateFileExplorePage (

-  VOID

-  )

-{

-  UINTN         Index;

-  MENU_ENTRY    *NewMenuEntry;

-  FILE_CONTEXT  *NewFileContext;

-  MENU_OPTION   *MenuOption;

-  BOOLEAN       CreateNewFile;

-

-  NewMenuEntry   = NULL;

-  NewFileContext = NULL;

-  CreateNewFile  = FALSE;

-

-  LibRefreshUpdateData ();

-  MenuOption = gFileExplorerPrivate.FsOptionMenu;

-

-  mQuestionIdUpdate += QUESTION_ID_UPDATE_STEP;

-

-  for (Index = 0; Index < MenuOption->MenuNumber; Index++) {

-    NewMenuEntry   = LibGetMenuEntry (MenuOption, Index);

-    NewFileContext = (FILE_CONTEXT *)NewMenuEntry->VariableContext;

-

-    if (!NewFileContext->IsRoot && !CreateNewFile) {

-      HiiCreateGotoOpCode (

-        mLibStartOpCodeHandle,

-        FORM_ADD_NEW_FILE_ID,

-        STRING_TOKEN (STR_NEW_FILE),

-        STRING_TOKEN (STR_NEW_FILE_HELP),

-        EFI_IFR_FLAG_CALLBACK,

-        (UINT16)(mNewFileQuestionId++)

-        );

-      HiiCreateGotoOpCode (

-        mLibStartOpCodeHandle,

-        FORM_ADD_NEW_FOLDER_ID,

-        STRING_TOKEN (STR_NEW_FOLDER),

-        STRING_TOKEN (STR_NEW_FOLDER_HELP),

-        EFI_IFR_FLAG_CALLBACK,

-        (UINT16)(mNewFolderQuestionId++)

-        );

-      HiiCreateTextOpCode (

-        mLibStartOpCodeHandle,

-        STRING_TOKEN (STR_NULL_STRING),

-        STRING_TOKEN (STR_NULL_STRING),

-        0

-        );

-      CreateNewFile = TRUE;

-    }

-

-    if (!NewFileContext->IsDir) {

-      //

-      // Create Text opcode for directory, also create Text opcode for file in FileExplorerStateBootFromFile.

-      //

-      HiiCreateActionOpCode (

-        mLibStartOpCodeHandle,

-        (UINT16)(FILE_OPTION_OFFSET + Index + mQuestionIdUpdate),

-        NewMenuEntry->DisplayStringToken,

-        STRING_TOKEN (STR_NULL_STRING),

-        EFI_IFR_FLAG_CALLBACK,

-        0

-        );

-    } else {

-      //

-      // Create Goto opcode for file in FileExplorerStateAddBootOption or FileExplorerStateAddDriverOptionState.

-      //

-      HiiCreateGotoOpCode (

-        mLibStartOpCodeHandle,

-        FORM_FILE_EXPLORER_ID,

-        NewMenuEntry->DisplayStringToken,

-        STRING_TOKEN (STR_NULL_STRING),

-        EFI_IFR_FLAG_CALLBACK,

-        (UINT16)(FILE_OPTION_OFFSET + Index + mQuestionIdUpdate)

-        );

-    }

-  }

-

-  HiiUpdateForm (

-    gFileExplorerPrivate.FeHiiHandle,

-    &FileExplorerGuid,

-    FORM_FILE_EXPLORER_ID,

-    mLibStartOpCodeHandle, // Label FORM_FILE_EXPLORER_ID

-    mLibEndOpCodeHandle    // LABEL_END

-    );

-}

-

-/**

-  Update the file explower page with the refershed file system.

-

-  @param KeyValue        Key value to identify the type of data to expect.

-

-  @retval  EFI_SUCCESS   Update the file explorer form success.

-  @retval  other errors  Error occur when parse one directory.

-

-**/

-EFI_STATUS

-LibUpdateFileExplorer (

-  IN UINT16  KeyValue

-  )

-{

-  UINT16           FileOptionMask;

-  MENU_ENTRY       *NewMenuEntry;

-  FILE_CONTEXT     *NewFileContext;

-  EFI_STATUS       Status;

-  EFI_FILE_HANDLE  FileHandle;

-

-  Status         = EFI_SUCCESS;

-  FileOptionMask = (UINT16)(FILE_OPTION_MASK & KeyValue) - mQuestionIdUpdate;

-  NewMenuEntry   = LibGetMenuEntry (gFileExplorerPrivate.FsOptionMenu, FileOptionMask);

-  NewFileContext = (FILE_CONTEXT *)NewMenuEntry->VariableContext;

-

-  if (NewFileContext->IsDir) {

-    RemoveEntryList (&NewMenuEntry->Link);

-    LibFreeMenu (gFileExplorerPrivate.FsOptionMenu);

-    Status = LibGetFileHandleFromMenu (NewMenuEntry, &FileHandle);

-    if (!EFI_ERROR (Status)) {

-      Status = LibFindFiles (FileHandle, NewFileContext->FileName, NewFileContext->DeviceHandle);

-      if (!EFI_ERROR (Status)) {

-        LibUpdateFileExplorePage ();

-      } else {

-        LibFreeMenu (gFileExplorerPrivate.FsOptionMenu);

-      }

-    }

-

-    LibDestroyMenuEntry (NewMenuEntry);

-  }

-

-  return Status;

-}

-

-/**

-  Get the device path info saved in the menu structure.

-

-  @param KeyValue        Key value to identify the type of data to expect.

-

-**/

-VOID

-LibGetDevicePath (

-  IN UINT16  KeyValue

-  )

-{

-  UINT16        FileOptionMask;

-  MENU_ENTRY    *NewMenuEntry;

-  FILE_CONTEXT  *NewFileContext;

-

-  FileOptionMask = (UINT16)(FILE_OPTION_MASK & KeyValue) - mQuestionIdUpdate;

-

-  NewMenuEntry = LibGetMenuEntry (gFileExplorerPrivate.FsOptionMenu, FileOptionMask);

-

-  NewFileContext = (FILE_CONTEXT *)NewMenuEntry->VariableContext;

-

-  if (gFileExplorerPrivate.RetDevicePath != NULL) {

-    FreePool (gFileExplorerPrivate.RetDevicePath);

-  }

-

-  gFileExplorerPrivate.RetDevicePath = DuplicateDevicePath (NewFileContext->DevicePath);

-}

-

-/**

-  Choose a file in the specified directory.

-

-  If user input NULL for the RootDirectory, will choose file in the system.

-

-  If user input *File != NULL, function will return the allocate device path

-  info for the choosed file, caller has to free the memory after use it.

-

-  @param  RootDirectory    Pointer to the root directory.

-  @param  FileType         The file type need to choose.

-  @param  ChooseHandler    Function pointer to the extra task need to do

-                           after choose one file.

-  @param  File             Return the device path for the last time chosed file.

-

-  @retval EFI_SUCESS             Choose file success.

-  @retval EFI_INVALID_PARAMETER  Both ChooseHandler and return device path are NULL

-                                 One of them must not NULL.

-  @retval Other errors           Choose file failed.

-**/

-EFI_STATUS

-EFIAPI

-ChooseFile (

-  IN  EFI_DEVICE_PATH_PROTOCOL  *RootDirectory,

-  IN  CHAR16                    *FileType   OPTIONAL,

-  IN  CHOOSE_HANDLER            ChooseHandler   OPTIONAL,

-  OUT EFI_DEVICE_PATH_PROTOCOL  **File  OPTIONAL

-  )

-{

-  EFI_FILE_HANDLE  FileHandle;

-  EFI_STATUS       Status;

-  UINT16           *FileName;

-  EFI_HANDLE       DeviceHandle;

-

-  if ((ChooseHandler == NULL) && (File == NULL)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  mQuestionIdUpdate = 0;

-  FileName          = NULL;

-

-  gFileExplorerPrivate.RetDevicePath = NULL;

-  gFileExplorerPrivate.ChooseHandler = ChooseHandler;

-  if (FileType != NULL) {

-    gFileExplorerPrivate.FileType = AllocateCopyPool (StrSize (FileType), FileType);

-    ASSERT (gFileExplorerPrivate.FileType != NULL);

-    LibToLowerString (gFileExplorerPrivate.FileType);

-  } else {

-    gFileExplorerPrivate.FileType = NULL;

-  }

-

-  if (RootDirectory == NULL) {

-    Status = LibFindFileSystem ();

-  } else {

-    Status = LibGetFileHandleFromDevicePath (RootDirectory, &FileHandle, &FileName, &DeviceHandle);

-    if (EFI_ERROR (Status)) {

-      goto Done;

-    }

-

-    Status = LibFindFiles (FileHandle, FileName, DeviceHandle);

-  }

-

-  if (EFI_ERROR (Status)) {

-    goto Done;

-  }

-

-  LibUpdateFileExplorePage ();

-

-  gFileExplorerPrivate.FormBrowser2->SendForm (

-                                       gFileExplorerPrivate.FormBrowser2,

-                                       &gFileExplorerPrivate.FeHiiHandle,

-                                       1,

-                                       &FileExplorerGuid,

-                                       0,

-                                       NULL,

-                                       NULL

-                                       );

-

-Done:

-  if ((Status == EFI_SUCCESS) && (File != NULL)) {

-    *File = gFileExplorerPrivate.RetDevicePath;

-  } else if (gFileExplorerPrivate.RetDevicePath != NULL) {

-    FreePool (gFileExplorerPrivate.RetDevicePath);

-  }

-

-  if (gFileExplorerPrivate.FileType != NULL) {

-    FreePool (gFileExplorerPrivate.FileType);

-  }

-

-  LibFreeMenu (gFileExplorerPrivate.FsOptionMenu);

-

-  if (FileName != NULL) {

-    FreePool (FileName);

-  }

-

-  return Status;

-}

-

-/**

-

-  Install Boot Manager Menu driver.

-

-  @param ImageHandle     The image handle.

-  @param SystemTable     The system table.

-

-  @retval  EFI_SUCEESS  Install File explorer library success.

-

-**/

-EFI_STATUS

-EFIAPI

-FileExplorerLibConstructor (

-  IN EFI_HANDLE        ImageHandle,

-  IN EFI_SYSTEM_TABLE  *SystemTable

-  )

-{

-  EFI_STATUS  Status;

-

-  gHiiVendorDevicePath = (HII_VENDOR_DEVICE_PATH *)DuplicateDevicePath ((EFI_DEVICE_PATH_PROTOCOL *)&FeHiiVendorDevicePath);

-  ASSERT (gHiiVendorDevicePath != NULL);

-  CopyGuid (&gHiiVendorDevicePath->VendorDevicePath.Guid, &gEfiCallerIdGuid);

-

-  //

-  // Install Device Path Protocol and Config Access protocol to driver handle

-  //

-  Status = gBS->InstallMultipleProtocolInterfaces (

-                  &gFileExplorerPrivate.FeDriverHandle,

-                  &gEfiDevicePathProtocolGuid,

-                  gHiiVendorDevicePath,

-                  &gEfiHiiConfigAccessProtocolGuid,

-                  &gFileExplorerPrivate.FeConfigAccess,

-                  NULL

-                  );

-  if (Status == EFI_ALREADY_STARTED) {

-    return EFI_SUCCESS;

-  }

-

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Post our File Explorer VFR binary to the HII database.

-  //

-  gFileExplorerPrivate.FeHiiHandle = HiiAddPackages (

-                                       &FileExplorerGuid,

-                                       gFileExplorerPrivate.FeDriverHandle,

-                                       FileExplorerVfrBin,

-                                       FileExplorerLibStrings,

-                                       NULL

-                                       );

-  ASSERT (gFileExplorerPrivate.FeHiiHandle != NULL);

-

-  //

-  // Locate Formbrowser2 protocol

-  //

-  Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **)&gFileExplorerPrivate.FormBrowser2);

-  ASSERT_EFI_ERROR (Status);

-

-  InitializeListHead (&gFileExplorerPrivate.FsOptionMenu->Head);

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Unloads the application and its installed protocol.

-

-  @param[in]  ImageHandle       Handle that identifies the image to be unloaded.

-  @param[in]  SystemTable       The system table.

-

-  @retval EFI_SUCCESS           The image has been unloaded.

-**/

-EFI_STATUS

-EFIAPI

-FileExplorerLibDestructor (

-  IN EFI_HANDLE        ImageHandle,

-  IN EFI_SYSTEM_TABLE  *SystemTable

-  )

-{

-  EFI_STATUS  Status;

-

-  ASSERT (gHiiVendorDevicePath != NULL);

-

-  if (gFileExplorerPrivate.FeDriverHandle != NULL) {

-    Status = gBS->UninstallMultipleProtocolInterfaces (

-                    gFileExplorerPrivate.FeDriverHandle,

-                    &gEfiDevicePathProtocolGuid,

-                    gHiiVendorDevicePath,

-                    &gEfiHiiConfigAccessProtocolGuid,

-                    &gFileExplorerPrivate.FeConfigAccess,

-                    NULL

-                    );

-    ASSERT_EFI_ERROR (Status);

-

-    HiiRemovePackages (gFileExplorerPrivate.FeHiiHandle);

-    gFileExplorerPrivate.FeDriverHandle = NULL;

-  }

-

-  FreePool (gHiiVendorDevicePath);

-

-  return EFI_SUCCESS;

-}

+/** @file
+File explorer related functions.
+
+Copyright (c) 2004 - 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "FileExplorer.h"
+
+EFI_GUID  FileExplorerGuid = EFI_FILE_EXPLORE_FORMSET_GUID;
+
+///
+/// File system selection menu
+///
+MENU_OPTION  mFsOptionMenu = {
+  MENU_OPTION_SIGNATURE,
+  { NULL },
+  0,
+  FALSE
+};
+
+FILE_EXPLORER_CALLBACK_DATA  gFileExplorerPrivate = {
+  FILE_EXPLORER_CALLBACK_DATA_SIGNATURE,
+  NULL,
+  NULL,
+  {
+    LibExtractConfig,
+    LibRouteConfig,
+    LibCallback
+  },
+  NULL,
+  &mFsOptionMenu,
+  0
+};
+
+HII_VENDOR_DEVICE_PATH  *gHiiVendorDevicePath;
+
+HII_VENDOR_DEVICE_PATH  FeHiiVendorDevicePath = {
+  {
+    {
+      HARDWARE_DEVICE_PATH,
+      HW_VENDOR_DP,
+      {
+        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
+        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
+      }
+    },
+    //
+    // Will be replace with gEfiCallerIdGuid in code.
+    //
+    { 0x0, 0x0, 0x0, { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }
+    }
+  },
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    {
+      (UINT8)(END_DEVICE_PATH_LENGTH),
+      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
+    }
+  }
+};
+
+VOID                *mLibStartOpCodeHandle = NULL;
+VOID                *mLibEndOpCodeHandle   = NULL;
+EFI_IFR_GUID_LABEL  *mLibStartLabel        = NULL;
+EFI_IFR_GUID_LABEL  *mLibEndLabel          = NULL;
+UINT16              mQuestionIdUpdate;
+CHAR16              mNewFileName[MAX_FILE_NAME_LEN];
+CHAR16              mNewFolderName[MAX_FOLDER_NAME_LEN];
+UINTN               mNewFileQuestionId   = NEW_FILE_QUESTION_ID_BASE;
+UINTN               mNewFolderQuestionId = NEW_FOLDER_QUESTION_ID_BASE;
+
+/**
+  Create a new file or folder in current directory.
+
+  @param FileName              Point to the fileNmae or folder.
+  @param CreateFile            CreateFile== TRUE  means create a new file.
+                               CreateFile== FALSE means create a new Folder.
+
+**/
+EFI_STATUS
+LibCreateNewFile (
+  IN CHAR16   *FileName,
+  IN BOOLEAN  CreateFile
+  );
+
+/**
+  This function allows a caller to extract the current configuration for one
+  or more named elements from the target driver.
+
+
+  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param Request         A null-terminated Unicode string in <ConfigRequest> format.
+  @param Progress        On return, points to a character in the Request string.
+                         Points to the string's null terminator if request was successful.
+                         Points to the most recent '&' before the first failing name/value
+                         pair (or the beginning of the string if the failure is in the
+                         first name/value pair) if the request was not successful.
+  @param Results         A null-terminated Unicode string in <ConfigAltResp> format which
+                         has all values filled in for the names in the Request string.
+                         String to be allocated by the called function.
+
+  @retval  EFI_INVALID_PARAMETER  Request is illegal syntax, or unknown name.
+  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.
+
+**/
+EFI_STATUS
+EFIAPI
+LibExtractConfig (
+  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN  CONST EFI_STRING                      Request,
+  OUT EFI_STRING                            *Progress,
+  OUT EFI_STRING                            *Results
+  )
+{
+  if ((Progress == NULL) || (Results == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *Progress = Request;
+  return EFI_NOT_FOUND;
+}
+
+/**
+  This function processes the results of changes in configuration.
+
+
+  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param Configuration   A null-terminated Unicode string in <ConfigResp> format.
+  @param Progress        A pointer to a string filled in with the offset of the most
+                         recent '&' before the first failing name/value pair (or the
+                         beginning of the string if the failure is in the first
+                         name/value pair) or the terminating NULL if all was successful.
+
+  @retval  EFI_INVALID_PARAMETER  Configuration is NULL.
+  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.
+
+**/
+EFI_STATUS
+EFIAPI
+LibRouteConfig (
+  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN  CONST EFI_STRING                      Configuration,
+  OUT EFI_STRING                            *Progress
+  )
+{
+  if ((Configuration == NULL) || (Progress == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  *Progress = Configuration;
+  return EFI_NOT_FOUND;
+}
+
+/**
+  This function processes the results of changes in configuration.
+  When user select a interactive opcode, this callback will be triggered.
+  Based on the Question(QuestionId) that triggers the callback, the corresponding
+  actions is performed. It handles:
+
+  1) Process the axtra action or exit file explorer when user select one file .
+  2) update of file content if a dir is selected.
+
+  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param Action          Specifies the type of action taken by the browser.
+  @param QuestionId      A unique value which is sent to the original exporting driver
+                         so that it can identify the type of data to expect.
+  @param Type            The type of value for the question.
+  @param Value           A pointer to the data being sent to the original exporting driver.
+  @param ActionRequest   On return, points to the action requested by the callback function.
+
+  @retval  EFI_SUCCESS           The callback successfully handled the action.
+  @retval  other error           Error occur when parse one directory.
+**/
+EFI_STATUS
+EFIAPI
+LibCallback (
+  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN  EFI_BROWSER_ACTION                    Action,
+  IN  EFI_QUESTION_ID                       QuestionId,
+  IN  UINT8                                 Type,
+  IN  EFI_IFR_TYPE_VALUE                    *Value,
+  OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest
+  )
+{
+  EFI_STATUS  Status;
+  BOOLEAN     NeedExit;
+  CHAR16      *NewFileName;
+  CHAR16      *NewFolderName;
+
+  NeedExit      = TRUE;
+  NewFileName   = NULL;
+  NewFolderName = NULL;
+
+  if ((Action != EFI_BROWSER_ACTION_CHANGING) && (Action != EFI_BROWSER_ACTION_CHANGED)) {
+    //
+    // Do nothing for other UEFI Action. Only do call back when data is changed.
+    //
+    return EFI_UNSUPPORTED;
+  }
+
+  if (Action == EFI_BROWSER_ACTION_CHANGED) {
+    if ((Value == NULL) || (ActionRequest == NULL)) {
+      return EFI_INVALID_PARAMETER;
+    }
+
+    if (QuestionId == KEY_VALUE_CREATE_FILE_AND_EXIT) {
+      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
+      if (!IsZeroBuffer (mNewFileName, sizeof (mNewFileName))) {
+        Status = LibCreateNewFile (mNewFileName, TRUE);
+        ZeroMem (mNewFileName, sizeof (mNewFileName));
+      }
+    }
+
+    if (QuestionId == KEY_VALUE_NO_CREATE_FILE_AND_EXIT) {
+      ZeroMem (mNewFileName, sizeof (mNewFileName));
+      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
+    }
+
+    if (QuestionId == KEY_VALUE_CREATE_FOLDER_AND_EXIT) {
+      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
+      if (!IsZeroBuffer (mNewFolderName, sizeof (mNewFolderName))) {
+        Status = LibCreateNewFile (mNewFolderName, FALSE);
+        ZeroMem (mNewFolderName, sizeof (mNewFolderName));
+      }
+    }
+
+    if (QuestionId == KEY_VALUE_NO_CREATE_FOLDER_AND_EXIT) {
+      ZeroMem (mNewFolderName, sizeof (mNewFolderName));
+      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
+    }
+
+    if (QuestionId == NEW_FILE_NAME_ID) {
+      NewFileName = HiiGetString (gFileExplorerPrivate.FeHiiHandle, Value->string, NULL);
+      if (NewFileName != NULL) {
+        StrCpyS (mNewFileName, MAX_FILE_NAME_LEN, NewFileName);
+        FreePool (NewFileName);
+        NewFileName = NULL;
+      } else {
+        return EFI_INVALID_PARAMETER;
+      }
+    }
+
+    if (QuestionId == NEW_FOLDER_NAME_ID) {
+      NewFolderName = HiiGetString (gFileExplorerPrivate.FeHiiHandle, Value->string, NULL);
+      if (NewFolderName != NULL) {
+        StrCpyS (mNewFolderName, MAX_FOLDER_NAME_LEN, NewFolderName);
+        FreePool (NewFolderName);
+        NewFolderName = NULL;
+      } else {
+        return EFI_INVALID_PARAMETER;
+      }
+    }
+
+    if (QuestionId >= FILE_OPTION_OFFSET) {
+      LibGetDevicePath (QuestionId);
+
+      //
+      // Process the extra action.
+      //
+      if (gFileExplorerPrivate.ChooseHandler != NULL) {
+        NeedExit = gFileExplorerPrivate.ChooseHandler (gFileExplorerPrivate.RetDevicePath);
+      }
+
+      if (NeedExit) {
+        *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
+      }
+    }
+  } else if (Action == EFI_BROWSER_ACTION_CHANGING) {
+    if (Value == NULL) {
+      return EFI_INVALID_PARAMETER;
+    }
+
+    if (QuestionId >= FILE_OPTION_OFFSET) {
+      LibGetDevicePath (QuestionId);
+      Status = LibUpdateFileExplorer (QuestionId);
+      if (EFI_ERROR (Status)) {
+        return Status;
+      }
+    }
+  }
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Create a menu entry by given menu type.
+
+  @retval NULL           If failed to create the menu.
+  @return the new menu entry.
+
+**/
+MENU_ENTRY *
+LibCreateMenuEntry (
+  VOID
+  )
+{
+  MENU_ENTRY  *MenuEntry;
+
+  //
+  // Create new menu entry
+  //
+  MenuEntry = AllocateZeroPool (sizeof (MENU_ENTRY));
+  if (MenuEntry == NULL) {
+    return NULL;
+  }
+
+  MenuEntry->VariableContext = AllocateZeroPool (sizeof (FILE_CONTEXT));
+  if (MenuEntry->VariableContext == NULL) {
+    FreePool (MenuEntry);
+    return NULL;
+  }
+
+  MenuEntry->Signature = MENU_ENTRY_SIGNATURE;
+  return MenuEntry;
+}
+
+/**
+  Get the Menu Entry from the list in Menu Entry List.
+
+  If MenuNumber is great or equal to the number of Menu
+  Entry in the list, then ASSERT.
+
+  @param MenuOption      The Menu Entry List to read the menu entry.
+  @param MenuNumber      The index of Menu Entry.
+
+  @return The Menu Entry.
+
+**/
+MENU_ENTRY *
+LibGetMenuEntry (
+  MENU_OPTION  *MenuOption,
+  UINTN        MenuNumber
+  )
+{
+  MENU_ENTRY  *NewMenuEntry;
+  UINTN       Index;
+  LIST_ENTRY  *List;
+
+  ASSERT (MenuNumber < MenuOption->MenuNumber);
+
+  List = MenuOption->Head.ForwardLink;
+  for (Index = 0; Index < MenuNumber; Index++) {
+    List = List->ForwardLink;
+  }
+
+  NewMenuEntry = CR (List, MENU_ENTRY, Link, MENU_ENTRY_SIGNATURE);
+
+  return NewMenuEntry;
+}
+
+/**
+  Free up all resource allocated for a BM_MENU_ENTRY.
+
+  @param MenuEntry   A pointer to BM_MENU_ENTRY.
+
+**/
+VOID
+LibDestroyMenuEntry (
+  MENU_ENTRY  *MenuEntry
+  )
+{
+  FILE_CONTEXT  *FileContext;
+
+  FileContext = (FILE_CONTEXT *)MenuEntry->VariableContext;
+
+  if (!FileContext->IsRoot) {
+    if (FileContext->DevicePath != NULL) {
+      FreePool (FileContext->DevicePath);
+    }
+  } else {
+    if (FileContext->FileHandle != NULL) {
+      FileContext->FileHandle->Close (FileContext->FileHandle);
+    }
+  }
+
+  if (FileContext->FileName != NULL) {
+    FreePool (FileContext->FileName);
+  }
+
+  FreePool (FileContext);
+
+  if (MenuEntry->DisplayString != NULL) {
+    FreePool (MenuEntry->DisplayString);
+  }
+
+  if (MenuEntry->HelpString != NULL) {
+    FreePool (MenuEntry->HelpString);
+  }
+
+  FreePool (MenuEntry);
+}
+
+/**
+  Free resources allocated in Allocate Rountine.
+
+  @param FreeMenu        Menu to be freed
+**/
+VOID
+LibFreeMenu (
+  MENU_OPTION  *FreeMenu
+  )
+{
+  MENU_ENTRY  *MenuEntry;
+
+  while (!IsListEmpty (&FreeMenu->Head)) {
+    MenuEntry = CR (
+                  FreeMenu->Head.ForwardLink,
+                  MENU_ENTRY,
+                  Link,
+                  MENU_ENTRY_SIGNATURE
+                  );
+    RemoveEntryList (&MenuEntry->Link);
+    LibDestroyMenuEntry (MenuEntry);
+  }
+
+  FreeMenu->MenuNumber = 0;
+}
+
+/**
+
+  Function opens and returns a file handle to the root directory of a volume.
+
+  @param DeviceHandle    A handle for a device
+
+  @return A valid file handle or NULL is returned
+
+**/
+EFI_FILE_HANDLE
+LibOpenRoot (
+  IN EFI_HANDLE  DeviceHandle
+  )
+{
+  EFI_STATUS                       Status;
+  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL  *Volume;
+  EFI_FILE_HANDLE                  File;
+
+  File = NULL;
+
+  //
+  // File the file system interface to the device
+  //
+  Status = gBS->HandleProtocol (
+                  DeviceHandle,
+                  &gEfiSimpleFileSystemProtocolGuid,
+                  (VOID *)&Volume
+                  );
+
+  //
+  // Open the root directory of the volume
+  //
+  if (!EFI_ERROR (Status)) {
+    Status = Volume->OpenVolume (
+                       Volume,
+                       &File
+                       );
+  }
+
+  //
+  // Done
+  //
+  return EFI_ERROR (Status) ? NULL : File;
+}
+
+/**
+  This function converts an input device structure to a Unicode string.
+
+  @param DevPath                  A pointer to the device path structure.
+
+  @return A new allocated Unicode string that represents the device path.
+
+**/
+CHAR16 *
+LibDevicePathToStr (
+  IN EFI_DEVICE_PATH_PROTOCOL  *DevPath
+  )
+{
+  EFI_STATUS                        Status;
+  CHAR16                            *ToText;
+  EFI_DEVICE_PATH_TO_TEXT_PROTOCOL  *DevPathToText;
+
+  if (DevPath == NULL) {
+    return NULL;
+  }
+
+  Status = gBS->LocateProtocol (
+                  &gEfiDevicePathToTextProtocolGuid,
+                  NULL,
+                  (VOID **)&DevPathToText
+                  );
+  ASSERT_EFI_ERROR (Status);
+  ToText = DevPathToText->ConvertDevicePathToText (
+                            DevPath,
+                            FALSE,
+                            TRUE
+                            );
+  ASSERT (ToText != NULL);
+
+  return ToText;
+}
+
+/**
+  Duplicate a string.
+
+  @param Src             The source.
+
+  @return A new string which is duplicated copy of the source.
+  @retval NULL If there is not enough memory.
+
+**/
+CHAR16 *
+LibStrDuplicate (
+  IN CHAR16  *Src
+  )
+{
+  CHAR16  *Dest;
+  UINTN   Size;
+
+  Size = StrSize (Src);
+  Dest = AllocateZeroPool (Size);
+  ASSERT (Dest != NULL);
+  if (Dest != NULL) {
+    CopyMem (Dest, Src, Size);
+  }
+
+  return Dest;
+}
+
+/**
+
+  Function gets the file information from an open file descriptor, and stores it
+  in a buffer allocated from pool.
+
+  @param FHand           File Handle.
+  @param InfoType        Info type need to get.
+
+  @retval                A pointer to a buffer with file information or NULL is returned
+
+**/
+VOID *
+LibFileInfo (
+  IN EFI_FILE_HANDLE  FHand,
+  IN EFI_GUID         *InfoType
+  )
+{
+  EFI_STATUS     Status;
+  EFI_FILE_INFO  *Buffer;
+  UINTN          BufferSize;
+
+  Buffer     = NULL;
+  BufferSize = 0;
+
+  Status = FHand->GetInfo (
+                    FHand,
+                    InfoType,
+                    &BufferSize,
+                    Buffer
+                    );
+  if (Status == EFI_BUFFER_TOO_SMALL) {
+    Buffer = AllocatePool (BufferSize);
+    ASSERT (Buffer != NULL);
+  }
+
+  Status = FHand->GetInfo (
+                    FHand,
+                    InfoType,
+                    &BufferSize,
+                    Buffer
+                    );
+
+  return Buffer;
+}
+
+/**
+
+  Get file type base on the file name.
+  Just cut the file name, from the ".". eg ".efi"
+
+  @param FileName  File need to be checked.
+
+  @retval the file type string.
+
+**/
+CHAR16 *
+LibGetTypeFromName (
+  IN CHAR16  *FileName
+  )
+{
+  UINTN  Index;
+
+  Index = StrLen (FileName) - 1;
+  while ((FileName[Index] != L'.') && (Index != 0)) {
+    Index--;
+  }
+
+  return Index == 0 ? NULL : &FileName[Index];
+}
+
+/**
+  Converts the unicode character of the string from uppercase to lowercase.
+  This is a internal function.
+
+  @param ConfigString  String to be converted
+
+**/
+VOID
+LibToLowerString (
+  IN CHAR16  *String
+  )
+{
+  CHAR16  *TmpStr;
+
+  for (TmpStr = String; *TmpStr != L'\0'; TmpStr++) {
+    if ((*TmpStr >= L'A') && (*TmpStr <= L'Z')) {
+      *TmpStr = (CHAR16)(*TmpStr - L'A' + L'a');
+    }
+  }
+}
+
+/**
+
+  Check whether current FileName point to a valid
+  Efi Image File.
+
+  @param FileName  File need to be checked.
+
+  @retval TRUE  Is Efi Image
+  @retval FALSE Not a valid Efi Image
+
+**/
+BOOLEAN
+LibIsSupportedFileType (
+  IN UINT16  *FileName
+  )
+{
+  CHAR16   *InputFileType;
+  CHAR16   *TmpStr;
+  BOOLEAN  IsSupported;
+
+  if (gFileExplorerPrivate.FileType == NULL) {
+    return TRUE;
+  }
+
+  InputFileType = LibGetTypeFromName (FileName);
+  //
+  // If the file not has *.* style, always return TRUE.
+  //
+  if (InputFileType == NULL) {
+    return TRUE;
+  }
+
+  TmpStr = AllocateCopyPool (StrSize (InputFileType), InputFileType);
+  ASSERT (TmpStr != NULL);
+  LibToLowerString (TmpStr);
+
+  IsSupported = (StrStr (gFileExplorerPrivate.FileType, TmpStr) == NULL ? FALSE : TRUE);
+
+  FreePool (TmpStr);
+  return IsSupported;
+}
+
+/**
+
+  Append file name to existing file name.
+
+  @param Str1  The existing file name
+  @param Str2  The file name to be appended
+
+  @return Allocate a new string to hold the appended result.
+          Caller is responsible to free the returned string.
+
+**/
+CHAR16 *
+LibAppendFileName (
+  IN  CHAR16  *Str1,
+  IN  CHAR16  *Str2
+  )
+{
+  UINTN   Size1;
+  UINTN   Size2;
+  UINTN   MaxLen;
+  CHAR16  *Str;
+  CHAR16  *TmpStr;
+  CHAR16  *Ptr;
+  CHAR16  *LastSlash;
+
+  Size1 = StrSize (Str1);
+  Size2 = StrSize (Str2);
+
+  //
+  // Check overflow
+  //
+  if (((MAX_UINTN - Size1) < Size2) || ((MAX_UINTN - Size1 - Size2) < sizeof (CHAR16))) {
+    return NULL;
+  }
+
+  MaxLen = (Size1 + Size2 + sizeof (CHAR16))/ sizeof (CHAR16);
+  Str    = AllocateZeroPool (Size1 + Size2 + sizeof (CHAR16));
+  ASSERT (Str != NULL);
+
+  TmpStr = AllocateZeroPool (Size1 + Size2 + sizeof (CHAR16));
+  ASSERT (TmpStr != NULL);
+
+  StrCpyS (Str, MaxLen, Str1);
+  if (!((*Str == '\\') && (*(Str + 1) == 0))) {
+    StrCatS (Str, MaxLen, L"\\");
+  }
+
+  StrCatS (Str, MaxLen, Str2);
+
+  Ptr       = Str;
+  LastSlash = Str;
+  while (*Ptr != 0) {
+    if ((*Ptr == '\\') && (*(Ptr + 1) == '.') && (*(Ptr + 2) == '.') && (*(Ptr + 3) == L'\\')) {
+      //
+      // Convert "\Name\..\" to "\"
+      // DO NOT convert the .. if it is at the end of the string. This will
+      // break the .. behavior in changing directories.
+      //
+
+      //
+      // Use TmpStr as a backup, as StrCpyS in BaseLib does not handle copy of two strings
+      // that overlap.
+      //
+      StrCpyS (TmpStr, MaxLen, Ptr + 3);
+      StrCpyS (LastSlash, MaxLen - ((UINTN)LastSlash - (UINTN)Str) / sizeof (CHAR16), TmpStr);
+      Ptr = LastSlash;
+    } else if ((*Ptr == '\\') && (*(Ptr + 1) == '.') && (*(Ptr + 2) == '\\')) {
+      //
+      // Convert a "\.\" to a "\"
+      //
+
+      //
+      // Use TmpStr as a backup, as StrCpyS in BaseLib does not handle copy of two strings
+      // that overlap.
+      //
+      StrCpyS (TmpStr, MaxLen, Ptr + 2);
+      StrCpyS (Ptr, MaxLen - ((UINTN)Ptr - (UINTN)Str) / sizeof (CHAR16), TmpStr);
+      Ptr = LastSlash;
+    } else if (*Ptr == '\\') {
+      LastSlash = Ptr;
+    }
+
+    Ptr++;
+  }
+
+  FreePool (TmpStr);
+
+  return Str;
+}
+
+/**
+  This function build the FsOptionMenu list which records all
+  available file system in the system. They includes all instances
+  of EFI_SIMPLE_FILE_SYSTEM_PROTOCOL, all instances of EFI_LOAD_FILE_SYSTEM.
+
+
+  @retval  EFI_SUCCESS             Success find the file system
+  @retval  EFI_OUT_OF_RESOURCES    Can not create menu entry
+
+**/
+EFI_STATUS
+LibFindFileSystem (
+  VOID
+  )
+{
+  UINTN                         NoSimpleFsHandles;
+  EFI_HANDLE                    *SimpleFsHandle;
+  UINT16                        *VolumeLabel;
+  UINTN                         Index;
+  EFI_STATUS                    Status;
+  MENU_ENTRY                    *MenuEntry;
+  FILE_CONTEXT                  *FileContext;
+  UINTN                         OptionNumber;
+  EFI_FILE_SYSTEM_VOLUME_LABEL  *Info;
+
+  NoSimpleFsHandles = 0;
+  OptionNumber      = 0;
+
+  //
+  // Locate Handles that support Simple File System protocol
+  //
+  Status = gBS->LocateHandleBuffer (
+                  ByProtocol,
+                  &gEfiSimpleFileSystemProtocolGuid,
+                  NULL,
+                  &NoSimpleFsHandles,
+                  &SimpleFsHandle
+                  );
+  if (!EFI_ERROR (Status)) {
+    //
+    // Find all the instances of the File System prototocol
+    //
+    for (Index = 0; Index < NoSimpleFsHandles; Index++) {
+      //
+      // Allocate pool for this load option
+      //
+      MenuEntry = LibCreateMenuEntry ();
+      if (NULL == MenuEntry) {
+        FreePool (SimpleFsHandle);
+        return EFI_OUT_OF_RESOURCES;
+      }
+
+      FileContext               = (FILE_CONTEXT *)MenuEntry->VariableContext;
+      FileContext->DeviceHandle = SimpleFsHandle[Index];
+      FileContext->FileHandle   = LibOpenRoot (FileContext->DeviceHandle);
+      if (FileContext->FileHandle == NULL) {
+        LibDestroyMenuEntry (MenuEntry);
+        continue;
+      }
+
+      MenuEntry->HelpString   = LibDevicePathToStr (DevicePathFromHandle (FileContext->DeviceHandle));
+      FileContext->FileName   = LibStrDuplicate (L"\\");
+      FileContext->DevicePath = FileDevicePath (FileContext->DeviceHandle, FileContext->FileName);
+      FileContext->IsDir      = TRUE;
+      FileContext->IsRoot     = TRUE;
+
+      //
+      // Get current file system's Volume Label
+      //
+      Info = (EFI_FILE_SYSTEM_VOLUME_LABEL *)LibFileInfo (FileContext->FileHandle, &gEfiFileSystemVolumeLabelInfoIdGuid);
+      if (Info == NULL) {
+        VolumeLabel = L"NO FILE SYSTEM INFO";
+      } else {
+        VolumeLabel = Info->VolumeLabel;
+        if (*VolumeLabel == 0x0000) {
+          VolumeLabel = L"NO VOLUME LABEL";
+        }
+      }
+
+      MenuEntry->DisplayString = AllocateZeroPool (MAX_CHAR);
+      ASSERT (MenuEntry->DisplayString != NULL);
+      UnicodeSPrint (
+        MenuEntry->DisplayString,
+        MAX_CHAR,
+        L"%s, [%s]",
+        VolumeLabel,
+        MenuEntry->HelpString
+        );
+      MenuEntry->DisplayStringToken = HiiSetString (
+                                        gFileExplorerPrivate.FeHiiHandle,
+                                        0,
+                                        MenuEntry->DisplayString,
+                                        NULL
+                                        );
+
+      if (Info != NULL) {
+        FreePool (Info);
+      }
+
+      OptionNumber++;
+      InsertTailList (&gFileExplorerPrivate.FsOptionMenu->Head, &MenuEntry->Link);
+    }
+  }
+
+  if (NoSimpleFsHandles != 0) {
+    FreePool (SimpleFsHandle);
+  }
+
+  gFileExplorerPrivate.FsOptionMenu->MenuNumber = OptionNumber;
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Find the file handle from the input menu info.
+
+  @param  MenuEntry        Input Menu info.
+  @param  RetFileHandle    Return the file handle for the input device path.
+
+  @retval EFI_SUCESS       Find the file handle success.
+  @retval Other            Find the file handle failure.
+**/
+EFI_STATUS
+LibGetFileHandleFromMenu (
+  IN  MENU_ENTRY       *MenuEntry,
+  OUT EFI_FILE_HANDLE  *RetFileHandle
+  )
+{
+  EFI_FILE_HANDLE  Dir;
+  EFI_FILE_HANDLE  NewDir;
+  FILE_CONTEXT     *FileContext;
+  EFI_STATUS       Status;
+
+  FileContext = (FILE_CONTEXT *)MenuEntry->VariableContext;
+  Dir         = FileContext->FileHandle;
+
+  //
+  // Open current directory to get files from it
+  //
+  Status = Dir->Open (
+                  Dir,
+                  &NewDir,
+                  FileContext->FileName,
+                  EFI_FILE_READ_ONLY,
+                  0
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  if (!FileContext->IsRoot) {
+    Dir->Close (Dir);
+  }
+
+  *RetFileHandle = NewDir;
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Find the file handle from the input device path info.
+
+  @param  RootDirectory    Device path info.
+  @param  RetFileHandle    Return the file handle for the input device path.
+  @param  ParentFileName   Parent file name.
+  @param  DeviceHandle     Driver handle for this partition.
+
+  @retval EFI_SUCESS       Find the file handle success.
+  @retval Other            Find the file handle failure.
+**/
+EFI_STATUS
+LibGetFileHandleFromDevicePath (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *RootDirectory,
+  OUT EFI_FILE_HANDLE           *RetFileHandle,
+  OUT UINT16                    **ParentFileName,
+  OUT EFI_HANDLE                *DeviceHandle
+  )
+{
+  EFI_DEVICE_PATH_PROTOCOL         *DevicePathNode;
+  EFI_DEVICE_PATH_PROTOCOL         *TempDevicePathNode;
+  EFI_STATUS                       Status;
+  EFI_HANDLE                       Handle;
+  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL  *Volume;
+  EFI_FILE_HANDLE                  FileHandle;
+  EFI_FILE_HANDLE                  LastHandle;
+  CHAR16                           *TempPath;
+
+  *ParentFileName = NULL;
+
+  //
+  // Attempt to access the file via a file system interface
+  //
+  DevicePathNode = RootDirectory;
+  Status         = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &DevicePathNode, &Handle);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = gBS->HandleProtocol (Handle, &gEfiSimpleFileSystemProtocolGuid, (VOID **)&Volume);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Open the Volume to get the File System handle
+  //
+  Status = Volume->OpenVolume (Volume, &FileHandle);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  *DeviceHandle = Handle;
+
+  if (IsDevicePathEnd (DevicePathNode)) {
+    *ParentFileName = AllocateCopyPool (StrSize (L"\\"), L"\\");
+    *RetFileHandle  = FileHandle;
+    return EFI_SUCCESS;
+  }
+
+  //
+  // Duplicate the device path to avoid the access to unaligned device path node.
+  // Because the device path consists of one or more FILE PATH MEDIA DEVICE PATH
+  // nodes, It assures the fields in device path nodes are 2 byte aligned.
+  //
+  TempDevicePathNode = DuplicateDevicePath (DevicePathNode);
+  if (TempDevicePathNode == NULL) {
+    //
+    // Setting Status to an EFI_ERROR value will cause the rest of
+    // the file system support below to be skipped.
+    //
+    Status = EFI_OUT_OF_RESOURCES;
+    goto Done;
+  }
+
+  //
+  // Parse each MEDIA_FILEPATH_DP node. There may be more than one, since the
+  // directory information and filename can be seperate. The goal is to inch
+  // our way down each device path node and close the previous node
+  //
+  DevicePathNode = TempDevicePathNode;
+  while (!EFI_ERROR (Status) && !IsDevicePathEnd (DevicePathNode)) {
+    if ((DevicePathType (DevicePathNode) != MEDIA_DEVICE_PATH) ||
+        (DevicePathSubType (DevicePathNode) != MEDIA_FILEPATH_DP))
+    {
+      Status = EFI_UNSUPPORTED;
+      goto Done;
+    }
+
+    LastHandle = FileHandle;
+    FileHandle = NULL;
+
+    Status = LastHandle->Open (
+                           LastHandle,
+                           &FileHandle,
+                           ((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName,
+                           EFI_FILE_MODE_READ,
+                           0
+                           );
+    if (*ParentFileName == NULL) {
+      *ParentFileName = AllocateCopyPool (StrSize (((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName), ((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName);
+    } else {
+      TempPath = LibAppendFileName (*ParentFileName, ((FILEPATH_DEVICE_PATH *)DevicePathNode)->PathName);
+      if (TempPath == NULL) {
+        LastHandle->Close (LastHandle);
+        Status = EFI_OUT_OF_RESOURCES;
+        goto Done;
+      }
+
+      FreePool (*ParentFileName);
+      *ParentFileName = TempPath;
+    }
+
+    //
+    // Close the previous node
+    //
+    LastHandle->Close (LastHandle);
+
+    DevicePathNode = NextDevicePathNode (DevicePathNode);
+  }
+
+  if (EFI_ERROR (Status)) {
+    goto Done;
+  }
+
+  *RetFileHandle = FileHandle;
+
+  Status = EFI_SUCCESS;
+
+Done:
+  if (TempDevicePathNode != NULL) {
+    FreePool (TempDevicePathNode);
+  }
+
+  if ((FileHandle != NULL) && (EFI_ERROR (Status))) {
+    FileHandle->Close (FileHandle);
+  }
+
+  return Status;
+}
+
+/**
+  Create a new file or folder in current directory.
+
+  @param FileName              Point to the fileNmae or folder name.
+  @param CreateFile            CreateFile== TRUE  means create a new file.
+                               CreateFile== FALSE means create a new Folder.
+
+**/
+EFI_STATUS
+LibCreateNewFile (
+  IN CHAR16   *FileName,
+  IN BOOLEAN  CreateFile
+  )
+{
+  EFI_FILE_HANDLE  FileHandle;
+  EFI_FILE_HANDLE  NewHandle;
+  EFI_HANDLE       DeviceHandle;
+  EFI_STATUS       Status;
+  CHAR16           *ParentName;
+  CHAR16           *FullFileName;
+
+  NewHandle    = NULL;
+  FullFileName = NULL;
+
+  if (EFI_ERROR (LibGetFileHandleFromDevicePath (gFileExplorerPrivate.RetDevicePath, &FileHandle, &ParentName, &DeviceHandle))) {
+    return EFI_DEVICE_ERROR;
+  }
+
+  FullFileName = LibAppendFileName (ParentName, FileName);
+  if (FullFileName == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  if (CreateFile) {
+    Status = FileHandle->Open (
+                           FileHandle,
+                           &NewHandle,
+                           FullFileName,
+                           EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE| EFI_FILE_MODE_CREATE,
+                           0
+                           );
+    if (EFI_ERROR (Status)) {
+      FileHandle->Close (FileHandle);
+      return Status;
+    }
+  } else {
+    Status = FileHandle->Open (
+                           FileHandle,
+                           &NewHandle,
+                           FullFileName,
+                           EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE| EFI_FILE_MODE_CREATE,
+                           EFI_FILE_DIRECTORY
+                           );
+    if (EFI_ERROR (Status)) {
+      FileHandle->Close (FileHandle);
+      return Status;
+    }
+  }
+
+  FileHandle->Close (FileHandle);
+
+  //
+  // Return the DevicePath of the new created file or folder.
+  //
+  gFileExplorerPrivate.RetDevicePath = FileDevicePath (DeviceHandle, FullFileName);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Find files under current directory.
+
+  All files and sub-directories in current directory
+  will be stored in DirectoryMenu for future use.
+
+  @param FileHandle    Parent file handle.
+  @param FileName      Parent file name.
+  @param DeviceHandle  Driver handle for this partition.
+
+  @retval EFI_SUCCESS         Get files from current dir successfully.
+  @return Other value if can't get files from current dir.
+
+**/
+EFI_STATUS
+LibFindFiles (
+  IN EFI_FILE_HANDLE  FileHandle,
+  IN UINT16           *FileName,
+  IN EFI_HANDLE       DeviceHandle
+  )
+{
+  EFI_FILE_INFO  *DirInfo;
+  UINTN          BufferSize;
+  UINTN          DirBufferSize;
+  MENU_ENTRY     *NewMenuEntry;
+  FILE_CONTEXT   *NewFileContext;
+  UINTN          Pass;
+  EFI_STATUS     Status;
+  UINTN          OptionNumber;
+
+  OptionNumber = 0;
+
+  DirBufferSize = sizeof (EFI_FILE_INFO) + 1024;
+  DirInfo       = AllocateZeroPool (DirBufferSize);
+  if (DirInfo == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  //
+  // Get all files in current directory
+  // Pass 1 to get Directories
+  // Pass 2 to get files that are EFI images
+  //
+  Status = EFI_SUCCESS;
+  for (Pass = 1; Pass <= 2; Pass++) {
+    FileHandle->SetPosition (FileHandle, 0);
+    for ( ; ;) {
+      BufferSize = DirBufferSize;
+      Status     = FileHandle->Read (FileHandle, &BufferSize, DirInfo);
+      if (EFI_ERROR (Status) || (BufferSize == 0)) {
+        Status = EFI_SUCCESS;
+        break;
+      }
+
+      if ((((DirInfo->Attribute & EFI_FILE_DIRECTORY) != 0) && (Pass == 2)) ||
+          (((DirInfo->Attribute & EFI_FILE_DIRECTORY) == 0) && (Pass == 1))
+          )
+      {
+        //
+        // Pass 1 is for Directories
+        // Pass 2 is for file names
+        //
+        continue;
+      }
+
+      if (!(((DirInfo->Attribute & EFI_FILE_DIRECTORY) != 0) || LibIsSupportedFileType (DirInfo->FileName))) {
+        //
+        // Slip file unless it is a directory entry or a .EFI file
+        //
+        continue;
+      }
+
+      NewMenuEntry = LibCreateMenuEntry ();
+      if (NULL == NewMenuEntry) {
+        Status = EFI_OUT_OF_RESOURCES;
+        goto Done;
+      }
+
+      NewFileContext               = (FILE_CONTEXT *)NewMenuEntry->VariableContext;
+      NewFileContext->DeviceHandle = DeviceHandle;
+      NewFileContext->FileName     = LibAppendFileName (FileName, DirInfo->FileName);
+      if (NewFileContext->FileName == NULL) {
+        LibDestroyMenuEntry (NewMenuEntry);
+        Status = EFI_OUT_OF_RESOURCES;
+        goto Done;
+      }
+
+      NewFileContext->FileHandle = FileHandle;
+      NewFileContext->DevicePath = FileDevicePath (NewFileContext->DeviceHandle, NewFileContext->FileName);
+      NewMenuEntry->HelpString   = NULL;
+      NewFileContext->IsDir      = (BOOLEAN)((DirInfo->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY);
+
+      if (NewFileContext->IsDir) {
+        BufferSize                  = StrLen (DirInfo->FileName) * 2 + 6;
+        NewMenuEntry->DisplayString = AllocateZeroPool (BufferSize);
+        UnicodeSPrint (
+          NewMenuEntry->DisplayString,
+          BufferSize,
+          L"<%s>",
+          DirInfo->FileName
+          );
+      } else {
+        NewMenuEntry->DisplayString = LibStrDuplicate (DirInfo->FileName);
+      }
+
+      NewMenuEntry->DisplayStringToken = HiiSetString (
+                                           gFileExplorerPrivate.FeHiiHandle,
+                                           0,
+                                           NewMenuEntry->DisplayString,
+                                           NULL
+                                           );
+
+      NewFileContext->IsRoot = FALSE;
+
+      OptionNumber++;
+      InsertTailList (&gFileExplorerPrivate.FsOptionMenu->Head, &NewMenuEntry->Link);
+    }
+  }
+
+  gFileExplorerPrivate.FsOptionMenu->MenuNumber = OptionNumber;
+
+Done:
+
+  FreePool (DirInfo);
+
+  return Status;
+}
+
+/**
+  Refresh the global UpdateData structure.
+
+**/
+VOID
+LibRefreshUpdateData (
+  VOID
+  )
+{
+  //
+  // Free current updated date
+  //
+  if (mLibStartOpCodeHandle != NULL) {
+    HiiFreeOpCodeHandle (mLibStartOpCodeHandle);
+  }
+
+  if (mLibEndOpCodeHandle != NULL) {
+    HiiFreeOpCodeHandle (mLibEndOpCodeHandle);
+  }
+
+  //
+  // Create new OpCode Handle
+  //
+  mLibStartOpCodeHandle = HiiAllocateOpCodeHandle ();
+  mLibEndOpCodeHandle   = HiiAllocateOpCodeHandle ();
+
+  //
+  // Create Hii Extend Label OpCode as the start opcode
+  //
+  mLibStartLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                           mLibStartOpCodeHandle,
+                                           &gEfiIfrTianoGuid,
+                                           NULL,
+                                           sizeof (EFI_IFR_GUID_LABEL)
+                                           );
+  mLibStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+
+  mLibStartLabel->Number = FORM_FILE_EXPLORER_ID;
+
+  //
+  // Create Hii Extend Label OpCode as the start opcode
+  //
+  mLibEndLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                         mLibEndOpCodeHandle,
+                                         &gEfiIfrTianoGuid,
+                                         NULL,
+                                         sizeof (EFI_IFR_GUID_LABEL)
+                                         );
+  mLibEndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+
+  mLibEndLabel->Number = LABEL_END;
+}
+
+/**
+
+  Update the File Explore page.
+
+**/
+VOID
+LibUpdateFileExplorePage (
+  VOID
+  )
+{
+  UINTN         Index;
+  MENU_ENTRY    *NewMenuEntry;
+  FILE_CONTEXT  *NewFileContext;
+  MENU_OPTION   *MenuOption;
+  BOOLEAN       CreateNewFile;
+
+  NewMenuEntry   = NULL;
+  NewFileContext = NULL;
+  CreateNewFile  = FALSE;
+
+  LibRefreshUpdateData ();
+  MenuOption = gFileExplorerPrivate.FsOptionMenu;
+
+  mQuestionIdUpdate += QUESTION_ID_UPDATE_STEP;
+
+  for (Index = 0; Index < MenuOption->MenuNumber; Index++) {
+    NewMenuEntry   = LibGetMenuEntry (MenuOption, Index);
+    NewFileContext = (FILE_CONTEXT *)NewMenuEntry->VariableContext;
+
+    if (!NewFileContext->IsRoot && !CreateNewFile) {
+      HiiCreateGotoOpCode (
+        mLibStartOpCodeHandle,
+        FORM_ADD_NEW_FILE_ID,
+        STRING_TOKEN (STR_NEW_FILE),
+        STRING_TOKEN (STR_NEW_FILE_HELP),
+        EFI_IFR_FLAG_CALLBACK,
+        (UINT16)(mNewFileQuestionId++)
+        );
+      HiiCreateGotoOpCode (
+        mLibStartOpCodeHandle,
+        FORM_ADD_NEW_FOLDER_ID,
+        STRING_TOKEN (STR_NEW_FOLDER),
+        STRING_TOKEN (STR_NEW_FOLDER_HELP),
+        EFI_IFR_FLAG_CALLBACK,
+        (UINT16)(mNewFolderQuestionId++)
+        );
+      HiiCreateTextOpCode (
+        mLibStartOpCodeHandle,
+        STRING_TOKEN (STR_NULL_STRING),
+        STRING_TOKEN (STR_NULL_STRING),
+        0
+        );
+      CreateNewFile = TRUE;
+    }
+
+    if (!NewFileContext->IsDir) {
+      //
+      // Create Text opcode for directory, also create Text opcode for file in FileExplorerStateBootFromFile.
+      //
+      HiiCreateActionOpCode (
+        mLibStartOpCodeHandle,
+        (UINT16)(FILE_OPTION_OFFSET + Index + mQuestionIdUpdate),
+        NewMenuEntry->DisplayStringToken,
+        STRING_TOKEN (STR_NULL_STRING),
+        EFI_IFR_FLAG_CALLBACK,
+        0
+        );
+    } else {
+      //
+      // Create Goto opcode for file in FileExplorerStateAddBootOption or FileExplorerStateAddDriverOptionState.
+      //
+      HiiCreateGotoOpCode (
+        mLibStartOpCodeHandle,
+        FORM_FILE_EXPLORER_ID,
+        NewMenuEntry->DisplayStringToken,
+        STRING_TOKEN (STR_NULL_STRING),
+        EFI_IFR_FLAG_CALLBACK,
+        (UINT16)(FILE_OPTION_OFFSET + Index + mQuestionIdUpdate)
+        );
+    }
+  }
+
+  HiiUpdateForm (
+    gFileExplorerPrivate.FeHiiHandle,
+    &FileExplorerGuid,
+    FORM_FILE_EXPLORER_ID,
+    mLibStartOpCodeHandle, // Label FORM_FILE_EXPLORER_ID
+    mLibEndOpCodeHandle    // LABEL_END
+    );
+}
+
+/**
+  Update the file explower page with the refershed file system.
+
+  @param KeyValue        Key value to identify the type of data to expect.
+
+  @retval  EFI_SUCCESS   Update the file explorer form success.
+  @retval  other errors  Error occur when parse one directory.
+
+**/
+EFI_STATUS
+LibUpdateFileExplorer (
+  IN UINT16  KeyValue
+  )
+{
+  UINT16           FileOptionMask;
+  MENU_ENTRY       *NewMenuEntry;
+  FILE_CONTEXT     *NewFileContext;
+  EFI_STATUS       Status;
+  EFI_FILE_HANDLE  FileHandle;
+
+  Status         = EFI_SUCCESS;
+  FileOptionMask = (UINT16)(FILE_OPTION_MASK & KeyValue) - mQuestionIdUpdate;
+  NewMenuEntry   = LibGetMenuEntry (gFileExplorerPrivate.FsOptionMenu, FileOptionMask);
+  NewFileContext = (FILE_CONTEXT *)NewMenuEntry->VariableContext;
+
+  if (NewFileContext->IsDir) {
+    RemoveEntryList (&NewMenuEntry->Link);
+    LibFreeMenu (gFileExplorerPrivate.FsOptionMenu);
+    Status = LibGetFileHandleFromMenu (NewMenuEntry, &FileHandle);
+    if (!EFI_ERROR (Status)) {
+      Status = LibFindFiles (FileHandle, NewFileContext->FileName, NewFileContext->DeviceHandle);
+      if (!EFI_ERROR (Status)) {
+        LibUpdateFileExplorePage ();
+      } else {
+        LibFreeMenu (gFileExplorerPrivate.FsOptionMenu);
+      }
+    }
+
+    LibDestroyMenuEntry (NewMenuEntry);
+  }
+
+  return Status;
+}
+
+/**
+  Get the device path info saved in the menu structure.
+
+  @param KeyValue        Key value to identify the type of data to expect.
+
+**/
+VOID
+LibGetDevicePath (
+  IN UINT16  KeyValue
+  )
+{
+  UINT16        FileOptionMask;
+  MENU_ENTRY    *NewMenuEntry;
+  FILE_CONTEXT  *NewFileContext;
+
+  FileOptionMask = (UINT16)(FILE_OPTION_MASK & KeyValue) - mQuestionIdUpdate;
+
+  NewMenuEntry = LibGetMenuEntry (gFileExplorerPrivate.FsOptionMenu, FileOptionMask);
+
+  NewFileContext = (FILE_CONTEXT *)NewMenuEntry->VariableContext;
+
+  if (gFileExplorerPrivate.RetDevicePath != NULL) {
+    FreePool (gFileExplorerPrivate.RetDevicePath);
+  }
+
+  gFileExplorerPrivate.RetDevicePath = DuplicateDevicePath (NewFileContext->DevicePath);
+}
+
+/**
+  Choose a file in the specified directory.
+
+  If user input NULL for the RootDirectory, will choose file in the system.
+
+  If user input *File != NULL, function will return the allocate device path
+  info for the choosed file, caller has to free the memory after use it.
+
+  @param  RootDirectory    Pointer to the root directory.
+  @param  FileType         The file type need to choose.
+  @param  ChooseHandler    Function pointer to the extra task need to do
+                           after choose one file.
+  @param  File             Return the device path for the last time chosed file.
+
+  @retval EFI_SUCESS             Choose file success.
+  @retval EFI_INVALID_PARAMETER  Both ChooseHandler and return device path are NULL
+                                 One of them must not NULL.
+  @retval Other errors           Choose file failed.
+**/
+EFI_STATUS
+EFIAPI
+ChooseFile (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *RootDirectory,
+  IN  CHAR16                    *FileType   OPTIONAL,
+  IN  CHOOSE_HANDLER            ChooseHandler   OPTIONAL,
+  OUT EFI_DEVICE_PATH_PROTOCOL  **File  OPTIONAL
+  )
+{
+  EFI_FILE_HANDLE  FileHandle;
+  EFI_STATUS       Status;
+  UINT16           *FileName;
+  EFI_HANDLE       DeviceHandle;
+
+  if ((ChooseHandler == NULL) && (File == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  mQuestionIdUpdate = 0;
+  FileName          = NULL;
+
+  gFileExplorerPrivate.RetDevicePath = NULL;
+  gFileExplorerPrivate.ChooseHandler = ChooseHandler;
+  if (FileType != NULL) {
+    gFileExplorerPrivate.FileType = AllocateCopyPool (StrSize (FileType), FileType);
+    ASSERT (gFileExplorerPrivate.FileType != NULL);
+    LibToLowerString (gFileExplorerPrivate.FileType);
+  } else {
+    gFileExplorerPrivate.FileType = NULL;
+  }
+
+  if (RootDirectory == NULL) {
+    Status = LibFindFileSystem ();
+  } else {
+    Status = LibGetFileHandleFromDevicePath (RootDirectory, &FileHandle, &FileName, &DeviceHandle);
+    if (EFI_ERROR (Status)) {
+      goto Done;
+    }
+
+    Status = LibFindFiles (FileHandle, FileName, DeviceHandle);
+  }
+
+  if (EFI_ERROR (Status)) {
+    goto Done;
+  }
+
+  LibUpdateFileExplorePage ();
+
+  gFileExplorerPrivate.FormBrowser2->SendForm (
+                                       gFileExplorerPrivate.FormBrowser2,
+                                       &gFileExplorerPrivate.FeHiiHandle,
+                                       1,
+                                       &FileExplorerGuid,
+                                       0,
+                                       NULL,
+                                       NULL
+                                       );
+
+Done:
+  if ((Status == EFI_SUCCESS) && (File != NULL)) {
+    *File = gFileExplorerPrivate.RetDevicePath;
+  } else if (gFileExplorerPrivate.RetDevicePath != NULL) {
+    FreePool (gFileExplorerPrivate.RetDevicePath);
+  }
+
+  if (gFileExplorerPrivate.FileType != NULL) {
+    FreePool (gFileExplorerPrivate.FileType);
+  }
+
+  LibFreeMenu (gFileExplorerPrivate.FsOptionMenu);
+
+  if (FileName != NULL) {
+    FreePool (FileName);
+  }
+
+  return Status;
+}
+
+/**
+
+  Install Boot Manager Menu driver.
+
+  @param ImageHandle     The image handle.
+  @param SystemTable     The system table.
+
+  @retval  EFI_SUCEESS  Install File explorer library success.
+
+**/
+EFI_STATUS
+EFIAPI
+FileExplorerLibConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  gHiiVendorDevicePath = (HII_VENDOR_DEVICE_PATH *)DuplicateDevicePath ((EFI_DEVICE_PATH_PROTOCOL *)&FeHiiVendorDevicePath);
+  ASSERT (gHiiVendorDevicePath != NULL);
+  CopyGuid (&gHiiVendorDevicePath->VendorDevicePath.Guid, &gEfiCallerIdGuid);
+
+  //
+  // Install Device Path Protocol and Config Access protocol to driver handle
+  //
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &gFileExplorerPrivate.FeDriverHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  gHiiVendorDevicePath,
+                  &gEfiHiiConfigAccessProtocolGuid,
+                  &gFileExplorerPrivate.FeConfigAccess,
+                  NULL
+                  );
+  if (Status == EFI_ALREADY_STARTED) {
+    return EFI_SUCCESS;
+  }
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Post our File Explorer VFR binary to the HII database.
+  //
+  gFileExplorerPrivate.FeHiiHandle = HiiAddPackages (
+                                       &FileExplorerGuid,
+                                       gFileExplorerPrivate.FeDriverHandle,
+                                       FileExplorerVfrBin,
+                                       FileExplorerLibStrings,
+                                       NULL
+                                       );
+  ASSERT (gFileExplorerPrivate.FeHiiHandle != NULL);
+
+  //
+  // Locate Formbrowser2 protocol
+  //
+  Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **)&gFileExplorerPrivate.FormBrowser2);
+  ASSERT_EFI_ERROR (Status);
+
+  InitializeListHead (&gFileExplorerPrivate.FsOptionMenu->Head);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Unloads the application and its installed protocol.
+
+  @param[in]  ImageHandle       Handle that identifies the image to be unloaded.
+  @param[in]  SystemTable       The system table.
+
+  @retval EFI_SUCCESS           The image has been unloaded.
+**/
+EFI_STATUS
+EFIAPI
+FileExplorerLibDestructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  ASSERT (gHiiVendorDevicePath != NULL);
+
+  if (gFileExplorerPrivate.FeDriverHandle != NULL) {
+    Status = gBS->UninstallMultipleProtocolInterfaces (
+                    gFileExplorerPrivate.FeDriverHandle,
+                    &gEfiDevicePathProtocolGuid,
+                    gHiiVendorDevicePath,
+                    &gEfiHiiConfigAccessProtocolGuid,
+                    &gFileExplorerPrivate.FeConfigAccess,
+                    NULL
+                    );
+    ASSERT_EFI_ERROR (Status);
+
+    HiiRemovePackages (gFileExplorerPrivate.FeHiiHandle);
+    gFileExplorerPrivate.FeDriverHandle = NULL;
+  }
+
+  FreePool (gHiiVendorDevicePath);
+
+  return EFI_SUCCESS;
+}
diff --git a/MdeModulePkg/Library/FileExplorerLib/FileExplorer.h b/MdeModulePkg/Library/FileExplorerLib/FileExplorer.h
index c7587c166b..0b844acf34 100644
--- a/MdeModulePkg/Library/FileExplorerLib/FileExplorer.h
+++ b/MdeModulePkg/Library/FileExplorerLib/FileExplorer.h
@@ -1,232 +1,232 @@
-/** @file

-   File explorer lib.

-

-Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>

-SPDX-License-Identifier: BSD-2-Clause-Patent

-**/

-

-#ifndef _FILE_EXPLORER_H_

-#define _FILE_EXPLORER_H_

-

-#include <PiDxe.h>

-#include <Guid/FileSystemVolumeLabelInfo.h>

-#include <Guid/FileInfo.h>

-#include <Guid/MdeModuleHii.h>

-

-#include <Protocol/HiiConfigAccess.h>

-#include <Protocol/DevicePath.h>

-#include <Protocol/SimpleFileSystem.h>

-#include <Protocol/DevicePathToText.h>

-#include <Protocol/FormBrowser2.h>

-

-#include <Library/DebugLib.h>

-#include <Library/BaseMemoryLib.h>

-#include <Library/UefiBootServicesTableLib.h>

-#include <Library/MemoryAllocationLib.h>

-#include <Library/BaseLib.h>

-#include <Library/UefiLib.h>

-#include <Library/DevicePathLib.h>

-#include <Library/FileExplorerLib.h>

-#include <Library/HiiLib.h>

-#include <Library/PrintLib.h>

-

-#include "FormGuid.h"

-

-#define FILE_EXPLORER_CALLBACK_DATA_SIGNATURE  SIGNATURE_32 ('f', 'e', 'c', 'k')

-

-#pragma pack(1)

-

-///

-/// HII specific Vendor Device Path definition.

-///

-typedef struct {

-  VENDOR_DEVICE_PATH          VendorDevicePath;

-  EFI_DEVICE_PATH_PROTOCOL    End;

-} HII_VENDOR_DEVICE_PATH;

-

-#pragma pack()

-

-typedef struct {

-  EFI_HANDLE                  DeviceHandle;

-  EFI_DEVICE_PATH_PROTOCOL    *DevicePath;

-  EFI_FILE_HANDLE             FileHandle;

-  UINT16                      *FileName;

-

-  BOOLEAN                     IsRoot;

-  BOOLEAN                     IsDir;

-} FILE_CONTEXT;

-

-typedef struct {

-  UINTN            Signature;

-  LIST_ENTRY       Link;

-  UINT16           *DisplayString;

-  UINT16           *HelpString;

-  EFI_STRING_ID    DisplayStringToken;

-  EFI_STRING_ID    HelpStringToken;

-  VOID             *VariableContext;

-} MENU_ENTRY;

-

-typedef struct {

-  UINTN         Signature;

-  LIST_ENTRY    Head;

-  UINTN         MenuNumber;

-  BOOLEAN       Used;

-} MENU_OPTION;

-

-typedef struct {

-  //

-  // Shared callback data.

-  //

-  UINTN                             Signature;

-

-  //

-  // File explorer formset callback data.

-  //

-  EFI_HII_HANDLE                    FeHiiHandle;

-  EFI_HANDLE                        FeDriverHandle;

-  EFI_HII_CONFIG_ACCESS_PROTOCOL    FeConfigAccess;

-  EFI_FORM_BROWSER2_PROTOCOL        *FormBrowser2;

-  MENU_OPTION                       *FsOptionMenu;

-  CHAR16                            *FileType;

-  CHOOSE_HANDLER                    ChooseHandler;

-  EFI_DEVICE_PATH_PROTOCOL          *RetDevicePath;

-} FILE_EXPLORER_CALLBACK_DATA;

-

-#define FILE_EXPLORER_PRIVATE_FROM_THIS(a)  CR (a, FILE_EXPLORER_CALLBACK_DATA, FeConfigAccess, FILE_EXPLORER_CALLBACK_DATA_SIGNATURE)

-

-extern UINT8  FileExplorerVfrBin[];

-

-#define MENU_OPTION_SIGNATURE  SIGNATURE_32 ('m', 'e', 'n', 'u')

-#define MENU_ENTRY_SIGNATURE   SIGNATURE_32 ('e', 'n', 't', 'r')

-

-///

-/// Define the maximum characters that will be accepted.

-///

-#define MAX_CHAR                     480

-#define FILE_OPTION_OFFSET           0x8000

-#define FILE_OPTION_MASK             0x7FFF

-#define QUESTION_ID_UPDATE_STEP      200

-#define MAX_FILE_NAME_LEN            20

-#define MAX_FOLDER_NAME_LEN          20

-#define NEW_FILE_QUESTION_ID_BASE    0x5000;

-#define NEW_FOLDER_QUESTION_ID_BASE  0x6000;

-

-/**

-  This function processes the results of changes in configuration.

-  When user select a interactive opcode, this callback will be triggered.

-  Based on the Question(QuestionId) that triggers the callback, the corresponding

-  actions is performed. It handles:

-

-  1) the addition of boot option.

-  2) the addition of driver option.

-  3) exit from file browser

-  4) update of file content if a dir is selected.

-  5) boot the file if a file is selected in "boot from file"

-

-

-  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.

-  @param Action          Specifies the type of action taken by the browser.

-  @param QuestionId      A unique value which is sent to the original exporting driver

-                         so that it can identify the type of data to expect.

-  @param Type            The type of value for the question.

-  @param Value           A pointer to the data being sent to the original exporting driver.

-  @param ActionRequest   On return, points to the action requested by the callback function.

-

-  @retval  EFI_SUCCESS           The callback successfully handled the action.

-  @retval  EFI_OUT_OF_RESOURCES  Not enough storage is available to hold the variable and its data.

-  @retval  EFI_DEVICE_ERROR      The variable could not be saved.

-  @retval  EFI_UNSUPPORTED       The specified Action is not supported by the callback.

-

-**/

-EFI_STATUS

-EFIAPI

-LibCallback (

-  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,

-  IN  EFI_BROWSER_ACTION                    Action,

-  IN  EFI_QUESTION_ID                       QuestionId,

-  IN  UINT8                                 Type,

-  IN  EFI_IFR_TYPE_VALUE                    *Value,

-  OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest

-  );

-

-/**

-  This function allows a caller to extract the current configuration for one

-  or more named elements from the target driver.

-

-

-  @param This            - Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.

-  @param Request         - A null-terminated Unicode string in <ConfigRequest> format.

-  @param Progress        - On return, points to a character in the Request string.

-                         Points to the string's null terminator if request was successful.

-                         Points to the most recent '&' before the first failing name/value

-                         pair (or the beginning of the string if the failure is in the

-                         first name/value pair) if the request was not successful.

-  @param Results         - A null-terminated Unicode string in <ConfigAltResp> format which

-                         has all values filled in for the names in the Request string.

-                         String to be allocated by the called function.

-

-  @retval  EFI_SUCCESS            The Results is filled with the requested values.

-  @retval  EFI_OUT_OF_RESOURCES   Not enough memory to store the results.

-  @retval  EFI_INVALID_PARAMETER  Request is NULL, illegal syntax, or unknown name.

-  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.

-

-**/

-EFI_STATUS

-EFIAPI

-LibExtractConfig (

-  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,

-  IN  CONST EFI_STRING                      Request,

-  OUT EFI_STRING                            *Progress,

-  OUT EFI_STRING                            *Results

-  );

-

-/**

-  This function processes the results of changes in configuration.

-

-

-  @param This            - Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.

-  @param Configuration   - A null-terminated Unicode string in <ConfigResp> format.

-  @param Progress        - A pointer to a string filled in with the offset of the most

-                         recent '&' before the first failing name/value pair (or the

-                         beginning of the string if the failure is in the first

-                         name/value pair) or the terminating NULL if all was successful.

-

-  @retval  EFI_SUCCESS            The Results is processed successfully.

-  @retval  EFI_INVALID_PARAMETER  Configuration is NULL.

-  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.

-

-**/

-EFI_STATUS

-EFIAPI

-LibRouteConfig (

-  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,

-  IN  CONST EFI_STRING                      Configuration,

-  OUT EFI_STRING                            *Progress

-  );

-

-/**

-  Update the file explower page with the refershed file system.

-

-  @param KeyValue        Key value to identify the type of data to expect.

-

-  @retval  EFI_SUCCESS   Update the file explorer form success.

-  @retval  other errors  Error occur when parse one directory.

-

-**/

-EFI_STATUS

-LibUpdateFileExplorer (

-  IN UINT16  KeyValue

-  );

-

-/**

-  Get the device path info saved in the menu structure.

-

-  @param KeyValue        Key value to identify the type of data to expect.

-

-**/

-VOID

-LibGetDevicePath (

-  IN UINT16  KeyValue

-  );

-

-#endif

+/** @file
+   File explorer lib.
+
+Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef _FILE_EXPLORER_H_
+#define _FILE_EXPLORER_H_
+
+#include <PiDxe.h>
+#include <Guid/FileSystemVolumeLabelInfo.h>
+#include <Guid/FileInfo.h>
+#include <Guid/MdeModuleHii.h>
+
+#include <Protocol/HiiConfigAccess.h>
+#include <Protocol/DevicePath.h>
+#include <Protocol/SimpleFileSystem.h>
+#include <Protocol/DevicePathToText.h>
+#include <Protocol/FormBrowser2.h>
+
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/FileExplorerLib.h>
+#include <Library/HiiLib.h>
+#include <Library/PrintLib.h>
+
+#include "FormGuid.h"
+
+#define FILE_EXPLORER_CALLBACK_DATA_SIGNATURE  SIGNATURE_32 ('f', 'e', 'c', 'k')
+
+#pragma pack(1)
+
+///
+/// HII specific Vendor Device Path definition.
+///
+typedef struct {
+  VENDOR_DEVICE_PATH          VendorDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL    End;
+} HII_VENDOR_DEVICE_PATH;
+
+#pragma pack()
+
+typedef struct {
+  EFI_HANDLE                  DeviceHandle;
+  EFI_DEVICE_PATH_PROTOCOL    *DevicePath;
+  EFI_FILE_HANDLE             FileHandle;
+  UINT16                      *FileName;
+
+  BOOLEAN                     IsRoot;
+  BOOLEAN                     IsDir;
+} FILE_CONTEXT;
+
+typedef struct {
+  UINTN            Signature;
+  LIST_ENTRY       Link;
+  UINT16           *DisplayString;
+  UINT16           *HelpString;
+  EFI_STRING_ID    DisplayStringToken;
+  EFI_STRING_ID    HelpStringToken;
+  VOID             *VariableContext;
+} MENU_ENTRY;
+
+typedef struct {
+  UINTN         Signature;
+  LIST_ENTRY    Head;
+  UINTN         MenuNumber;
+  BOOLEAN       Used;
+} MENU_OPTION;
+
+typedef struct {
+  //
+  // Shared callback data.
+  //
+  UINTN                             Signature;
+
+  //
+  // File explorer formset callback data.
+  //
+  EFI_HII_HANDLE                    FeHiiHandle;
+  EFI_HANDLE                        FeDriverHandle;
+  EFI_HII_CONFIG_ACCESS_PROTOCOL    FeConfigAccess;
+  EFI_FORM_BROWSER2_PROTOCOL        *FormBrowser2;
+  MENU_OPTION                       *FsOptionMenu;
+  CHAR16                            *FileType;
+  CHOOSE_HANDLER                    ChooseHandler;
+  EFI_DEVICE_PATH_PROTOCOL          *RetDevicePath;
+} FILE_EXPLORER_CALLBACK_DATA;
+
+#define FILE_EXPLORER_PRIVATE_FROM_THIS(a)  CR (a, FILE_EXPLORER_CALLBACK_DATA, FeConfigAccess, FILE_EXPLORER_CALLBACK_DATA_SIGNATURE)
+
+extern UINT8  FileExplorerVfrBin[];
+
+#define MENU_OPTION_SIGNATURE  SIGNATURE_32 ('m', 'e', 'n', 'u')
+#define MENU_ENTRY_SIGNATURE   SIGNATURE_32 ('e', 'n', 't', 'r')
+
+///
+/// Define the maximum characters that will be accepted.
+///
+#define MAX_CHAR                     480
+#define FILE_OPTION_OFFSET           0x8000
+#define FILE_OPTION_MASK             0x7FFF
+#define QUESTION_ID_UPDATE_STEP      200
+#define MAX_FILE_NAME_LEN            20
+#define MAX_FOLDER_NAME_LEN          20
+#define NEW_FILE_QUESTION_ID_BASE    0x5000;
+#define NEW_FOLDER_QUESTION_ID_BASE  0x6000;
+
+/**
+  This function processes the results of changes in configuration.
+  When user select a interactive opcode, this callback will be triggered.
+  Based on the Question(QuestionId) that triggers the callback, the corresponding
+  actions is performed. It handles:
+
+  1) the addition of boot option.
+  2) the addition of driver option.
+  3) exit from file browser
+  4) update of file content if a dir is selected.
+  5) boot the file if a file is selected in "boot from file"
+
+
+  @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param Action          Specifies the type of action taken by the browser.
+  @param QuestionId      A unique value which is sent to the original exporting driver
+                         so that it can identify the type of data to expect.
+  @param Type            The type of value for the question.
+  @param Value           A pointer to the data being sent to the original exporting driver.
+  @param ActionRequest   On return, points to the action requested by the callback function.
+
+  @retval  EFI_SUCCESS           The callback successfully handled the action.
+  @retval  EFI_OUT_OF_RESOURCES  Not enough storage is available to hold the variable and its data.
+  @retval  EFI_DEVICE_ERROR      The variable could not be saved.
+  @retval  EFI_UNSUPPORTED       The specified Action is not supported by the callback.
+
+**/
+EFI_STATUS
+EFIAPI
+LibCallback (
+  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN  EFI_BROWSER_ACTION                    Action,
+  IN  EFI_QUESTION_ID                       QuestionId,
+  IN  UINT8                                 Type,
+  IN  EFI_IFR_TYPE_VALUE                    *Value,
+  OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest
+  );
+
+/**
+  This function allows a caller to extract the current configuration for one
+  or more named elements from the target driver.
+
+
+  @param This            - Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param Request         - A null-terminated Unicode string in <ConfigRequest> format.
+  @param Progress        - On return, points to a character in the Request string.
+                         Points to the string's null terminator if request was successful.
+                         Points to the most recent '&' before the first failing name/value
+                         pair (or the beginning of the string if the failure is in the
+                         first name/value pair) if the request was not successful.
+  @param Results         - A null-terminated Unicode string in <ConfigAltResp> format which
+                         has all values filled in for the names in the Request string.
+                         String to be allocated by the called function.
+
+  @retval  EFI_SUCCESS            The Results is filled with the requested values.
+  @retval  EFI_OUT_OF_RESOURCES   Not enough memory to store the results.
+  @retval  EFI_INVALID_PARAMETER  Request is NULL, illegal syntax, or unknown name.
+  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.
+
+**/
+EFI_STATUS
+EFIAPI
+LibExtractConfig (
+  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN  CONST EFI_STRING                      Request,
+  OUT EFI_STRING                            *Progress,
+  OUT EFI_STRING                            *Results
+  );
+
+/**
+  This function processes the results of changes in configuration.
+
+
+  @param This            - Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param Configuration   - A null-terminated Unicode string in <ConfigResp> format.
+  @param Progress        - A pointer to a string filled in with the offset of the most
+                         recent '&' before the first failing name/value pair (or the
+                         beginning of the string if the failure is in the first
+                         name/value pair) or the terminating NULL if all was successful.
+
+  @retval  EFI_SUCCESS            The Results is processed successfully.
+  @retval  EFI_INVALID_PARAMETER  Configuration is NULL.
+  @retval  EFI_NOT_FOUND          Routing data doesn't match any storage in this driver.
+
+**/
+EFI_STATUS
+EFIAPI
+LibRouteConfig (
+  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
+  IN  CONST EFI_STRING                      Configuration,
+  OUT EFI_STRING                            *Progress
+  );
+
+/**
+  Update the file explower page with the refershed file system.
+
+  @param KeyValue        Key value to identify the type of data to expect.
+
+  @retval  EFI_SUCCESS   Update the file explorer form success.
+  @retval  other errors  Error occur when parse one directory.
+
+**/
+EFI_STATUS
+LibUpdateFileExplorer (
+  IN UINT16  KeyValue
+  );
+
+/**
+  Get the device path info saved in the menu structure.
+
+  @param KeyValue        Key value to identify the type of data to expect.
+
+**/
+VOID
+LibGetDevicePath (
+  IN UINT16  KeyValue
+  );
+
+#endif
diff --git a/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.inf b/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.inf
index 4e14cbc04c..ec0f6adf4b 100644
--- a/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.inf
+++ b/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.inf
@@ -1,57 +1,57 @@
-## @file

-#  library defines a set of interfaces for how to do file explorer.

-#

-#  Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>

-#  SPDX-License-Identifier: BSD-2-Clause-Patent

-#

-##

-[Defines]

-  INF_VERSION                    = 0x00010005

-  BASE_NAME                      = FileExplorerLib

-  MODULE_UNI_FILE                = FileExplorerLib.uni

-  FILE_GUID                      = 4FC9C630-0F90-4053-8F13-264CBD22FC58

-  MODULE_TYPE                    = DXE_DRIVER

-  VERSION_STRING                 = 1.0

-  LIBRARY_CLASS                  = FileExplorerLib|DXE_DRIVER UEFI_APPLICATION

-  CONSTRUCTOR                    = FileExplorerLibConstructor

-  DESTRUCTOR                     = FileExplorerLibDestructor

-

-#

-# The following information is for reference only and not required by the build tools.

-#

-#  VALID_ARCHITECTURES           = IA32 X64 EBC

-#

-

-[Sources]

-  FileExplorer.h

-  FileExplorerVfr.vfr

-  FileExplorerString.uni

-  FileExplorer.c

-  FormGuid.h

-

-[Packages]

-  MdePkg/MdePkg.dec

-  MdeModulePkg/MdeModulePkg.dec

-

-[LibraryClasses]

-  DevicePathLib

-  BaseLib

-  MemoryAllocationLib

-  UefiBootServicesTableLib

-  BaseMemoryLib

-  DebugLib

-  HiiLib

-  UefiHiiServicesLib

-

-[Guids]

-  gEfiFileSystemVolumeLabelInfoIdGuid           ## SOMETIMES_CONSUMES ## GUID (Indicate the information type is volume)

-  gEfiIfrTianoGuid                              ## SOMETIMES_CONSUMES ## GUID (Extended IFR Guid Opcode)

-

-[Protocols]

-  gEfiSimpleFileSystemProtocolGuid              ## SOMETIMES_CONSUMES

-  gEfiHiiConfigAccessProtocolGuid               ## PRODUCES

-  gEfiFormBrowser2ProtocolGuid                  ## CONSUMES

-  gEfiDevicePathToTextProtocolGuid              ## PRODUCES

-

-[Depex.common.DXE_DRIVER]

-  gEfiFormBrowser2ProtocolGuid AND gEfiHiiDatabaseProtocolGuid

+## @file
+#  library defines a set of interfaces for how to do file explorer.
+#
+#  Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = FileExplorerLib
+  MODULE_UNI_FILE                = FileExplorerLib.uni
+  FILE_GUID                      = 4FC9C630-0F90-4053-8F13-264CBD22FC58
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = FileExplorerLib|DXE_DRIVER UEFI_APPLICATION
+  CONSTRUCTOR                    = FileExplorerLibConstructor
+  DESTRUCTOR                     = FileExplorerLibDestructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+
+[Sources]
+  FileExplorer.h
+  FileExplorerVfr.vfr
+  FileExplorerString.uni
+  FileExplorer.c
+  FormGuid.h
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  DevicePathLib
+  BaseLib
+  MemoryAllocationLib
+  UefiBootServicesTableLib
+  BaseMemoryLib
+  DebugLib
+  HiiLib
+  UefiHiiServicesLib
+
+[Guids]
+  gEfiFileSystemVolumeLabelInfoIdGuid           ## SOMETIMES_CONSUMES ## GUID (Indicate the information type is volume)
+  gEfiIfrTianoGuid                              ## SOMETIMES_CONSUMES ## GUID (Extended IFR Guid Opcode)
+
+[Protocols]
+  gEfiSimpleFileSystemProtocolGuid              ## SOMETIMES_CONSUMES
+  gEfiHiiConfigAccessProtocolGuid               ## PRODUCES
+  gEfiFormBrowser2ProtocolGuid                  ## CONSUMES
+  gEfiDevicePathToTextProtocolGuid              ## PRODUCES
+
+[Depex.common.DXE_DRIVER]
+  gEfiFormBrowser2ProtocolGuid AND gEfiHiiDatabaseProtocolGuid
diff --git a/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.uni b/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.uni
index 5e7a99cb92..fb33285e4e 100644
--- a/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.uni
+++ b/MdeModulePkg/Library/FileExplorerLib/FileExplorerLib.uni
@@ -1,20 +1,20 @@
-// /** @file

-// library defines a set of interfaces for how to do file explorer.

-//

-// library defines a set of interfaces for how to do file explorer.

-//

-// Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>

-//

-// SPDX-License-Identifier: BSD-2-Clause-Patent

-//

-// **/

-

-#string STR_MODULE_ABSTRACT

-#language en-US

-"library defines a set of interfaces for how to do file explorer."

-

-#string STR_MODULE_DESCRIPTION

-#language en-US

-"library defines a set of interfaces for how to do file explorer."

-

-

+// /** @file
+// library defines a set of interfaces for how to do file explorer.
+//
+// library defines a set of interfaces for how to do file explorer.
+//
+// Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+#string STR_MODULE_ABSTRACT
+#language en-US
+"library defines a set of interfaces for how to do file explorer."
+
+#string STR_MODULE_DESCRIPTION
+#language en-US
+"library defines a set of interfaces for how to do file explorer."
+
+
diff --git a/MdeModulePkg/Library/FileExplorerLib/FileExplorerString.uni b/MdeModulePkg/Library/FileExplorerLib/FileExplorerString.uni
index 070cdf38ea..7d58fd5923 100644
--- a/MdeModulePkg/Library/FileExplorerLib/FileExplorerString.uni
+++ b/MdeModulePkg/Library/FileExplorerLib/FileExplorerString.uni
@@ -1,55 +1,55 @@
-///** @file

-//

-// Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>

-// SPDX-License-Identifier: BSD-2-Clause-Patent

-//

-// Module Name:

-//

-//   FileExplorerString.uni

-//

-// Abstract:

-//

-//   String definitions for file explorer library.

-//

-// Revision History:

-//

-// --*/

-/=#

-

-#langdef   en-US "English"

-#langdef   fr-FR "Français"

-

-#string STR_NULL_STRING                #language en-US  " "

-                                       #language fr-FR  " "

-#string STR_FILE_EXPLORER_TITLE        #language en-US  "File Explorer"

-                                       #language fr-FR  "File Explorer"

-#string STR_NEW_FILE                   #language en-US  "***NEW FILE***"

-                                       #language fr-FR  "***NEW FILE***"

-#string STR_NEW_FILE_HELP              #language en-US  "This menu used to create a new file in current directory, jump to next page to name the new file"

-                                       #language fr-FR  "This menu used to create a new file in current directory, jump to next page to name the new file"

-#string STR_ADD_NEW_FILE_TITLE         #language en-US  "Create a new file"

-                                       #language fr-FR  "Create a new file"

-#string STR_ADD_NEW_FOLDER_TITLE       #language en-US  "Create a new folder"

-                                       #language fr-FR  "Create a new folder"

-#string STR_NEW_FILE_NAME_PROMPT       #language en-US  "File Name"

-                                       #language fr-FR  "File Name"

-#string STR_NEW_FILE_NAME_HELP         #language en-US  "Please input a name for the new file"

-                                       #language fr-FR  "Please input a name for the new file"

-#string STR_CREATE_FILE_AND_EXIT       #language en-US  "Create File and Exit"

-                                       #language fr-FR  "Create File and Exit"

-#string STR_NO_CREATE_FILE_AND_EXIT    #language en-US  "Discard Create and Exit"

-                                       #language fr-FR  "Discard Create and Exit"

-#string STR_NEW_FOLDER                 #language en-US  "***NEW FOLDER***"

-                                       #language fr-FR  "***NEW FOLDER***"

-#string STR_NEW_FOLDER_HELP            #language en-US  "This menu used to create a new folder in current directory, jump to next page to name the new folder"

-                                       #language fr-FR  "This menu used to create a new folder in current directory, jump to next page to name the new folder"

-#string STR_ADD_NEW_FOLDER_TITLE       #language en-US  "Create a new folder"

-                                       #language fr-FR  "Create a new folder"

-#string STR_NEW_FOLDER_NAME_PROMPT     #language en-US  "Folder Name"

-                                       #language fr-FR  "Folder Name"

-#string STR_NEW_FOLDER_NAME_HELP       #language en-US  "Please input a name for the new folder"

-                                       #language fr-FR  "Please input a name for the new folder"

-#string STR_CREATE_FOLDER_AND_EXIT     #language en-US  "Create Folder and Exit"

-                                       #language fr-FR  "Create Folder and Exit"

-#string STR_NO_CREATE_FOLDER_AND_EXIT  #language en-US  "Discard Create and Exit"

-                                       #language fr-FR  "Discard Create and Exit"

+///** @file
+//
+// Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// Module Name:
+//
+//   FileExplorerString.uni
+//
+// Abstract:
+//
+//   String definitions for file explorer library.
+//
+// Revision History:
+//
+// --*/
+/=#
+
+#langdef   en-US "English"
+#langdef   fr-FR "Français"
+
+#string STR_NULL_STRING                #language en-US  " "
+                                       #language fr-FR  " "
+#string STR_FILE_EXPLORER_TITLE        #language en-US  "File Explorer"
+                                       #language fr-FR  "File Explorer"
+#string STR_NEW_FILE                   #language en-US  "***NEW FILE***"
+                                       #language fr-FR  "***NEW FILE***"
+#string STR_NEW_FILE_HELP              #language en-US  "This menu used to create a new file in current directory, jump to next page to name the new file"
+                                       #language fr-FR  "This menu used to create a new file in current directory, jump to next page to name the new file"
+#string STR_ADD_NEW_FILE_TITLE         #language en-US  "Create a new file"
+                                       #language fr-FR  "Create a new file"
+#string STR_ADD_NEW_FOLDER_TITLE       #language en-US  "Create a new folder"
+                                       #language fr-FR  "Create a new folder"
+#string STR_NEW_FILE_NAME_PROMPT       #language en-US  "File Name"
+                                       #language fr-FR  "File Name"
+#string STR_NEW_FILE_NAME_HELP         #language en-US  "Please input a name for the new file"
+                                       #language fr-FR  "Please input a name for the new file"
+#string STR_CREATE_FILE_AND_EXIT       #language en-US  "Create File and Exit"
+                                       #language fr-FR  "Create File and Exit"
+#string STR_NO_CREATE_FILE_AND_EXIT    #language en-US  "Discard Create and Exit"
+                                       #language fr-FR  "Discard Create and Exit"
+#string STR_NEW_FOLDER                 #language en-US  "***NEW FOLDER***"
+                                       #language fr-FR  "***NEW FOLDER***"
+#string STR_NEW_FOLDER_HELP            #language en-US  "This menu used to create a new folder in current directory, jump to next page to name the new folder"
+                                       #language fr-FR  "This menu used to create a new folder in current directory, jump to next page to name the new folder"
+#string STR_ADD_NEW_FOLDER_TITLE       #language en-US  "Create a new folder"
+                                       #language fr-FR  "Create a new folder"
+#string STR_NEW_FOLDER_NAME_PROMPT     #language en-US  "Folder Name"
+                                       #language fr-FR  "Folder Name"
+#string STR_NEW_FOLDER_NAME_HELP       #language en-US  "Please input a name for the new folder"
+                                       #language fr-FR  "Please input a name for the new folder"
+#string STR_CREATE_FOLDER_AND_EXIT     #language en-US  "Create Folder and Exit"
+                                       #language fr-FR  "Create Folder and Exit"
+#string STR_NO_CREATE_FOLDER_AND_EXIT  #language en-US  "Discard Create and Exit"
+                                       #language fr-FR  "Discard Create and Exit"
diff --git a/MdeModulePkg/Library/FileExplorerLib/FileExplorerVfr.vfr b/MdeModulePkg/Library/FileExplorerLib/FileExplorerVfr.vfr
index a8f273299c..9507aed53e 100644
--- a/MdeModulePkg/Library/FileExplorerLib/FileExplorerVfr.vfr
+++ b/MdeModulePkg/Library/FileExplorerLib/FileExplorerVfr.vfr
@@ -1,79 +1,79 @@
-///** @file

-//

-//    File Explorer Formset

-//

-//  Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>

-//  SPDX-License-Identifier: BSD-2-Clause-Patent

-//

-//**/

-

-#include "FormGuid.h"

-

-formset

-  guid = EFI_FILE_EXPLORE_FORMSET_GUID,

-  title = STRING_TOKEN(STR_FILE_EXPLORER_TITLE),

-  help = STRING_TOKEN(STR_NULL_STRING),

-  classguid = EFI_FILE_EXPLORE_FORMSET_GUID,

-

-  form formid = FORM_FILE_EXPLORER_ID,

-       title = STRING_TOKEN(STR_FILE_EXPLORER_TITLE);

-

-       label FORM_FILE_EXPLORER_ID;

-       label LABEL_END;

-  endform;

-

-  form formid = FORM_ADD_NEW_FILE_ID,

-       title = STRING_TOKEN(STR_ADD_NEW_FILE_TITLE);

-

-      string

-          prompt   = STRING_TOKEN(STR_NEW_FILE_NAME_PROMPT),

-          help     = STRING_TOKEN(STR_NEW_FILE_NAME_HELP),

-          flags    = INTERACTIVE,

-          key      = NEW_FILE_NAME_ID,

-          minsize  = 2,

-          maxsize  = 20,

-      endstring;

-

-      subtitle text = STRING_TOKEN(STR_NULL_STRING);

-

-       text

-         help   = STRING_TOKEN(STR_CREATE_FILE_AND_EXIT),

-         text   = STRING_TOKEN(STR_CREATE_FILE_AND_EXIT),

-         flags  = INTERACTIVE,

-         key    = KEY_VALUE_CREATE_FILE_AND_EXIT;

-

-       text

-         help   = STRING_TOKEN(STR_NO_CREATE_FILE_AND_EXIT),

-         text   = STRING_TOKEN(STR_NO_CREATE_FILE_AND_EXIT),

-         flags  = INTERACTIVE,

-         key    = KEY_VALUE_NO_CREATE_FILE_AND_EXIT;

-  endform;

-

-  form formid = FORM_ADD_NEW_FOLDER_ID,

-      title = STRING_TOKEN(STR_ADD_NEW_FOLDER_TITLE);

-

-      string

-          prompt   = STRING_TOKEN(STR_NEW_FOLDER_NAME_PROMPT),

-          help     = STRING_TOKEN(STR_NEW_FOLDER_NAME_HELP),

-          flags    = INTERACTIVE,

-          key      = NEW_FOLDER_NAME_ID,

-          minsize  = 2,

-          maxsize  = 20,

-      endstring;

-

-      subtitle text = STRING_TOKEN(STR_NULL_STRING);

-

-      text

-        help   = STRING_TOKEN(STR_CREATE_FOLDER_AND_EXIT),

-        text   = STRING_TOKEN(STR_CREATE_FOLDER_AND_EXIT),

-        flags  = INTERACTIVE,

-        key    = KEY_VALUE_CREATE_FOLDER_AND_EXIT;

-

-      text

-        help   = STRING_TOKEN(STR_NO_CREATE_FOLDER_AND_EXIT),

-        text   = STRING_TOKEN(STR_NO_CREATE_FOLDER_AND_EXIT),

-        flags  = INTERACTIVE,

-        key    = KEY_VALUE_NO_CREATE_FOLDER_AND_EXIT;

-  endform;

-

-endformset;

+///** @file
+//
+//    File Explorer Formset
+//
+//  Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
+//  SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+//**/
+
+#include "FormGuid.h"
+
+formset
+  guid = EFI_FILE_EXPLORE_FORMSET_GUID,
+  title = STRING_TOKEN(STR_FILE_EXPLORER_TITLE),
+  help = STRING_TOKEN(STR_NULL_STRING),
+  classguid = EFI_FILE_EXPLORE_FORMSET_GUID,
+
+  form formid = FORM_FILE_EXPLORER_ID,
+       title = STRING_TOKEN(STR_FILE_EXPLORER_TITLE);
+
+       label FORM_FILE_EXPLORER_ID;
+       label LABEL_END;
+  endform;
+
+  form formid = FORM_ADD_NEW_FILE_ID,
+       title = STRING_TOKEN(STR_ADD_NEW_FILE_TITLE);
+
+      string
+          prompt   = STRING_TOKEN(STR_NEW_FILE_NAME_PROMPT),
+          help     = STRING_TOKEN(STR_NEW_FILE_NAME_HELP),
+          flags    = INTERACTIVE,
+          key      = NEW_FILE_NAME_ID,
+          minsize  = 2,
+          maxsize  = 20,
+      endstring;
+
+      subtitle text = STRING_TOKEN(STR_NULL_STRING);
+
+       text
+         help   = STRING_TOKEN(STR_CREATE_FILE_AND_EXIT),
+         text   = STRING_TOKEN(STR_CREATE_FILE_AND_EXIT),
+         flags  = INTERACTIVE,
+         key    = KEY_VALUE_CREATE_FILE_AND_EXIT;
+
+       text
+         help   = STRING_TOKEN(STR_NO_CREATE_FILE_AND_EXIT),
+         text   = STRING_TOKEN(STR_NO_CREATE_FILE_AND_EXIT),
+         flags  = INTERACTIVE,
+         key    = KEY_VALUE_NO_CREATE_FILE_AND_EXIT;
+  endform;
+
+  form formid = FORM_ADD_NEW_FOLDER_ID,
+      title = STRING_TOKEN(STR_ADD_NEW_FOLDER_TITLE);
+
+      string
+          prompt   = STRING_TOKEN(STR_NEW_FOLDER_NAME_PROMPT),
+          help     = STRING_TOKEN(STR_NEW_FOLDER_NAME_HELP),
+          flags    = INTERACTIVE,
+          key      = NEW_FOLDER_NAME_ID,
+          minsize  = 2,
+          maxsize  = 20,
+      endstring;
+
+      subtitle text = STRING_TOKEN(STR_NULL_STRING);
+
+      text
+        help   = STRING_TOKEN(STR_CREATE_FOLDER_AND_EXIT),
+        text   = STRING_TOKEN(STR_CREATE_FOLDER_AND_EXIT),
+        flags  = INTERACTIVE,
+        key    = KEY_VALUE_CREATE_FOLDER_AND_EXIT;
+
+      text
+        help   = STRING_TOKEN(STR_NO_CREATE_FOLDER_AND_EXIT),
+        text   = STRING_TOKEN(STR_NO_CREATE_FOLDER_AND_EXIT),
+        flags  = INTERACTIVE,
+        key    = KEY_VALUE_NO_CREATE_FOLDER_AND_EXIT;
+  endform;
+
+endformset;
diff --git a/MdeModulePkg/Library/FileExplorerLib/FormGuid.h b/MdeModulePkg/Library/FileExplorerLib/FormGuid.h
index 52a34dc283..fb35e084e2 100644
--- a/MdeModulePkg/Library/FileExplorerLib/FormGuid.h
+++ b/MdeModulePkg/Library/FileExplorerLib/FormGuid.h
@@ -1,29 +1,29 @@
-/** @file

-Formset guids, form id and VarStore data structure for File explorer library.

-

-Copyright (c) 2004 - 2017, Intel Corporation. All rights reserved.<BR>

-SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#ifndef _FILE_EXPLORER_FORM_GUID_H_

-#define _FILE_EXPLORER_FORM_GUID_H_

-

-#define EFI_FILE_EXPLORE_FORMSET_GUID \

-  { \

-  0xfe561596, 0xe6bf, 0x41a6, {0x83, 0x76, 0xc7, 0x2b, 0x71, 0x98, 0x74, 0xd0} \

-  }

-

-#define FORM_FILE_EXPLORER_ID                0x1000

-#define FORM_ADD_NEW_FILE_ID                 0x2000

-#define NEW_FILE_NAME_ID                     0x2001

-#define KEY_VALUE_CREATE_FILE_AND_EXIT       0x2002

-#define KEY_VALUE_NO_CREATE_FILE_AND_EXIT    0x2003

-#define FORM_ADD_NEW_FOLDER_ID               0x3000

-#define NEW_FOLDER_NAME_ID                   0x3001

-#define KEY_VALUE_CREATE_FOLDER_AND_EXIT     0x3002

-#define KEY_VALUE_NO_CREATE_FOLDER_AND_EXIT  0x3003

-

-#define LABEL_END  0xffff

-

-#endif

+/** @file
+Formset guids, form id and VarStore data structure for File explorer library.
+
+Copyright (c) 2004 - 2017, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _FILE_EXPLORER_FORM_GUID_H_
+#define _FILE_EXPLORER_FORM_GUID_H_
+
+#define EFI_FILE_EXPLORE_FORMSET_GUID \
+  { \
+  0xfe561596, 0xe6bf, 0x41a6, {0x83, 0x76, 0xc7, 0x2b, 0x71, 0x98, 0x74, 0xd0} \
+  }
+
+#define FORM_FILE_EXPLORER_ID                0x1000
+#define FORM_ADD_NEW_FILE_ID                 0x2000
+#define NEW_FILE_NAME_ID                     0x2001
+#define KEY_VALUE_CREATE_FILE_AND_EXIT       0x2002
+#define KEY_VALUE_NO_CREATE_FILE_AND_EXIT    0x2003
+#define FORM_ADD_NEW_FOLDER_ID               0x3000
+#define NEW_FOLDER_NAME_ID                   0x3001
+#define KEY_VALUE_CREATE_FOLDER_AND_EXIT     0x3002
+#define KEY_VALUE_NO_CREATE_FOLDER_AND_EXIT  0x3003
+
+#define LABEL_END  0xffff
+
+#endif