Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chen A Chen <chen.a.chen@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Ruiyu Ni <Ruiyu.ni@intel.com>
		
			
				
	
	
		
			314 lines
		
	
	
		
			9.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			314 lines
		
	
	
		
			9.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
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  Main file for vol shell level 2 function.
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  (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
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  Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.<BR>
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  This program and the accompanying materials
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  are licensed and made available under the terms and conditions of the BSD License
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  which accompanies this distribution.  The full text of the license may be found at
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  http://opensource.org/licenses/bsd-license.php
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  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "UefiShellLevel2CommandsLib.h"
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#include <Guid/FileSystemInfo.h>
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#include <Guid/FileSystemVolumeLabelInfo.h>
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/**
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  Print the info or change the volume info.
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  @param[in] Path           String with starting path.
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  @param[in] Delete         TRUE to delete the volume label. FALSE otherwise.
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  @param[in] Name           New name to set to the volume label.
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  @retval SHELL_SUCCESS     The operation was sucessful.
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**/
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SHELL_STATUS
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HandleVol(
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  IN CONST CHAR16  *Path,
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  IN CONST BOOLEAN Delete,
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  IN CONST CHAR16  *Name OPTIONAL
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  )
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{
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  EFI_STATUS            Status;
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  SHELL_STATUS          ShellStatus;
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  EFI_FILE_SYSTEM_INFO  *SysInfo;
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  UINTN                 SysInfoSize;
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  SHELL_FILE_HANDLE     ShellFileHandle;
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  EFI_FILE_PROTOCOL     *EfiFpHandle;
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  UINTN                 Size1;
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  UINTN                 Size2;
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  ShellStatus   = SHELL_SUCCESS;
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  if (
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      Name != NULL && (
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      StrStr(Name, L"%") != NULL ||
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      StrStr(Name, L"^") != NULL ||
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      StrStr(Name, L"*") != NULL ||
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      StrStr(Name, L"+") != NULL ||
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      StrStr(Name, L"=") != NULL ||
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      StrStr(Name, L"[") != NULL ||
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      StrStr(Name, L"]") != NULL ||
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      StrStr(Name, L"|") != NULL ||
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      StrStr(Name, L":") != NULL ||
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      StrStr(Name, L";") != NULL ||
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      StrStr(Name, L"\"") != NULL ||
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      StrStr(Name, L"<") != NULL ||
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      StrStr(Name, L">") != NULL ||
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      StrStr(Name, L"?") != NULL ||
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      StrStr(Name, L"/") != NULL ||
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      StrStr(Name, L" ") != NULL )
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      ){
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    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellLevel2HiiHandle, L"vol", Name);  
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    return (SHELL_INVALID_PARAMETER);
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  }
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  Status = gEfiShellProtocol->OpenFileByName(
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    Path,
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    &ShellFileHandle,
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    Name != NULL?EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE:EFI_FILE_MODE_READ);
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  if (EFI_ERROR(Status) || ShellFileHandle == NULL) {
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    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellLevel2HiiHandle, L"vol", Path);  
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    return (SHELL_ACCESS_DENIED);
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  }
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  //
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  // Get the Volume Info from ShellFileHandle
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  //
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  SysInfo     = NULL;
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  SysInfoSize = 0;
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  EfiFpHandle = ConvertShellHandleToEfiFileProtocol(ShellFileHandle);
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  Status = EfiFpHandle->GetInfo(
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    EfiFpHandle,
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    &gEfiFileSystemInfoGuid,
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    &SysInfoSize,
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    SysInfo);
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  if (Status == EFI_BUFFER_TOO_SMALL) {
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    SysInfo = AllocateZeroPool(SysInfoSize);
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    Status = EfiFpHandle->GetInfo(
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      EfiFpHandle,
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      &gEfiFileSystemInfoGuid,
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      &SysInfoSize,
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      SysInfo);
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  }
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  ASSERT(SysInfo != NULL);
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  if (Delete) {
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    *((CHAR16 *) SysInfo->VolumeLabel) = CHAR_NULL;
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    SysInfo->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize(SysInfo->VolumeLabel);
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    Status = EfiFpHandle->SetInfo(
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      EfiFpHandle,
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      &gEfiFileSystemInfoGuid,
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      (UINTN)SysInfo->Size,
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      SysInfo);
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  } else if (Name != NULL) {
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    Size1 = StrSize(Name);
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    Size2 = StrSize(SysInfo->VolumeLabel);
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    if (Size1 > Size2) {
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      SysInfo = ReallocatePool((UINTN)SysInfo->Size, (UINTN)SysInfo->Size + Size1 - Size2, SysInfo);
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      if (SysInfo == NULL) {
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        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellLevel2HiiHandle, L"vol");  
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        ShellStatus = SHELL_OUT_OF_RESOURCES;
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      } 
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    }
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    if (SysInfo != NULL) {
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      StrCpyS ( (CHAR16 *) SysInfo->VolumeLabel, 
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                  (Size1>Size2? Size1/sizeof(CHAR16) : Size2/sizeof(CHAR16)), 
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                  Name
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                  );
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      SysInfo->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + Size1;
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      Status = EfiFpHandle->SetInfo(
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        EfiFpHandle,
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        &gEfiFileSystemInfoGuid,
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        (UINTN)SysInfo->Size,
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        SysInfo);
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    }
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  }  
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  FreePool(SysInfo);
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  if (Delete || Name != NULL) {
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    if (EFI_ERROR(Status)) {
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      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_AD), gShellLevel2HiiHandle, L"vol", Path);  
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      ShellStatus = SHELL_ACCESS_DENIED;
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    }
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  }
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  SysInfoSize = 0;
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  SysInfo = NULL;
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  Status = EfiFpHandle->GetInfo(
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    EfiFpHandle,
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    &gEfiFileSystemInfoGuid,
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    &SysInfoSize,
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    SysInfo);
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  if (Status == EFI_BUFFER_TOO_SMALL) {
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    SysInfo = AllocateZeroPool(SysInfoSize);
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    Status = EfiFpHandle->GetInfo(
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      EfiFpHandle,
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      &gEfiFileSystemInfoGuid,
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      &SysInfoSize,
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      SysInfo);
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  }
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  gEfiShellProtocol->CloseFile(ShellFileHandle);
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  ASSERT(SysInfo != NULL);
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  if (SysInfo != NULL) {
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    //
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    // print VolumeInfo table
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    //
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    ShellPrintHiiEx (
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      0,
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      gST->ConOut->Mode->CursorRow,
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      NULL,
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      STRING_TOKEN (STR_VOL_VOLINFO),
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      gShellLevel2HiiHandle,
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      SysInfo->VolumeLabel,
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      SysInfo->ReadOnly?L"r":L"rw",
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      SysInfo->VolumeSize,
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      SysInfo->FreeSpace,
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      SysInfo->BlockSize
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     );
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    SHELL_FREE_NON_NULL(SysInfo);
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  }
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  return (ShellStatus);
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}
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STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
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  {L"-d", TypeFlag},
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  {L"-n", TypeValue},
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  {NULL, TypeMax}
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  };
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/**
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  Function for 'Vol' command.
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  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
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  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
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**/
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SHELL_STATUS
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EFIAPI
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ShellCommandRunVol (
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  IN EFI_HANDLE        ImageHandle,
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  IN EFI_SYSTEM_TABLE  *SystemTable
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  )
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{
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  EFI_STATUS    Status;
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  LIST_ENTRY    *Package;
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  CHAR16        *ProblemParam;
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  SHELL_STATUS  ShellStatus;
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  CONST CHAR16  *PathName;
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  CONST CHAR16  *CurDir;
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  BOOLEAN       DeleteMode;
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  CHAR16        *FullPath;
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  CHAR16        *TempSpot;
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  UINTN         Length;
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  CONST CHAR16  *NewName;
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  Length              = 0;
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  ProblemParam        = NULL;
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  ShellStatus         = SHELL_SUCCESS;
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  PathName            = NULL;
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  CurDir              = NULL;
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  FullPath            = NULL;
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  //
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  // initialize the shell lib (we must be in non-auto-init...)
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  //
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  Status = ShellInitialize();
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  ASSERT_EFI_ERROR(Status);
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  //
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  // Fix local copies of the protocol pointers
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  //
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  Status = CommandInit();
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  ASSERT_EFI_ERROR(Status);
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  //
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  // parse the command line
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  //
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  Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
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  if (EFI_ERROR(Status)) {
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    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
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      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"vol", ProblemParam);  
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      FreePool(ProblemParam);
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      ShellStatus = SHELL_INVALID_PARAMETER;
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    } else {
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      ASSERT(FALSE);
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    }
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  } else {
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    //
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    // check for "-?"
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    //
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    if (ShellCommandLineGetFlag(Package, L"-?")) {
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      ASSERT(FALSE);
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    }
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    if (ShellCommandLineGetCount(Package) > 2) {
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      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"vol");  
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      ShellStatus = SHELL_INVALID_PARAMETER;
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    } else {
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      PathName = ShellCommandLineGetRawValue(Package, 1);
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      if (PathName == NULL) {
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        CurDir = gEfiShellProtocol->GetCurDir(NULL);
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        if (CurDir == NULL) {
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          ShellStatus = SHELL_NOT_FOUND;
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          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"vol");  
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        } else {
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          PathName = CurDir;
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        }
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      }
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      if (PathName != NULL) {
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        TempSpot = StrStr(PathName, L":");
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        if (TempSpot != NULL) {
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          *TempSpot = CHAR_NULL;
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        }
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        TempSpot = StrStr(PathName, L"\\");
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        if (TempSpot != NULL) {
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          *TempSpot = CHAR_NULL;
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        }
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        StrnCatGrow(&FullPath, &Length, PathName, 0);
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        StrnCatGrow(&FullPath, &Length, L":\\", 0);
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        DeleteMode = ShellCommandLineGetFlag(Package, L"-d");
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        NewName    = ShellCommandLineGetValue(Package, L"-n");
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        if (DeleteMode && ShellCommandLineGetFlag(Package, L"-n")) {
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          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CONFLICT), gShellLevel2HiiHandle, L"vol", L"-d", L"-n");  
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          ShellStatus = SHELL_INVALID_PARAMETER;
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        } else if (ShellCommandLineGetFlag(Package, L"-n") && NewName == NULL) {
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          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellLevel2HiiHandle, L"vol", L"-n");  
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          ShellStatus = SHELL_INVALID_PARAMETER;
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        } else if (NewName != NULL && StrLen(NewName) > 11) {
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          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellLevel2HiiHandle, L"vol", NewName, L"-n");  
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          ShellStatus = SHELL_INVALID_PARAMETER;
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        } else if (ShellStatus == SHELL_SUCCESS) {
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          ShellStatus = HandleVol(
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            FullPath,
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            DeleteMode,
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            NewName
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           );
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        }
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      }
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    }
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  }
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  SHELL_FREE_NON_NULL(FullPath);
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  //
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  // free the command line package
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  //
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  ShellCommandLineFreeVarList (Package);
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  return (ShellStatus);
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}
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