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audk/ShellPkg/Library/UefiShellLevel2CommandsLib/Vol.c

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/** @file
Main file for vol shell level 2 function.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UefiShellLevel2CommandsLib.h"
#include <Guid/FileSystemInfo.h>
#include <Guid/FileSystemVolumeLabelInfo.h>
/**
Print the info or change the volume info.
@param[in] Path String with starting path.
@param[in] Delete TRUE to delete the volume label. FALSE otherwise.
@param[in] Name New name to set to the volume label.
@retval SHELL_SUCCESS The operation was sucessful.
**/
SHELL_STATUS
HandleVol (
IN CONST CHAR16 *Path,
IN CONST BOOLEAN Delete,
IN CONST CHAR16 *Name OPTIONAL
)
{
EFI_STATUS Status;
SHELL_STATUS ShellStatus;
EFI_FILE_SYSTEM_INFO *SysInfo;
UINTN SysInfoSize;
SHELL_FILE_HANDLE ShellFileHandle;
EFI_FILE_PROTOCOL *EfiFpHandle;
UINTN Size1;
UINTN Size2;
ShellStatus = SHELL_SUCCESS;
if (
(Name != NULL) && (
(StrStr (Name, L"%") != NULL) ||
(StrStr (Name, L"^") != NULL) ||
(StrStr (Name, L"*") != NULL) ||
(StrStr (Name, L"+") != NULL) ||
(StrStr (Name, L"=") != NULL) ||
(StrStr (Name, L"[") != NULL) ||
(StrStr (Name, L"]") != NULL) ||
(StrStr (Name, L"|") != NULL) ||
(StrStr (Name, L":") != NULL) ||
(StrStr (Name, L";") != NULL) ||
(StrStr (Name, L"\"") != NULL) ||
(StrStr (Name, L"<") != NULL) ||
(StrStr (Name, L">") != NULL) ||
(StrStr (Name, L"?") != NULL) ||
(StrStr (Name, L"/") != NULL) ||
(StrStr (Name, L" ") != NULL))
)
{
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellLevel2HiiHandle, L"vol", Name);
return (SHELL_INVALID_PARAMETER);
}
Status = gEfiShellProtocol->OpenFileByName (
Path,
&ShellFileHandle,
Name != NULL ? EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE : EFI_FILE_MODE_READ
);
if (EFI_ERROR (Status) || (ShellFileHandle == NULL)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellLevel2HiiHandle, L"vol", Path);
return (SHELL_ACCESS_DENIED);
}
//
// Get the Volume Info from ShellFileHandle
//
SysInfo = NULL;
SysInfoSize = 0;
EfiFpHandle = ConvertShellHandleToEfiFileProtocol (ShellFileHandle);
Status = EfiFpHandle->GetInfo (
EfiFpHandle,
&gEfiFileSystemInfoGuid,
&SysInfoSize,
SysInfo
);
if (Status == EFI_BUFFER_TOO_SMALL) {
SysInfo = AllocateZeroPool (SysInfoSize);
Status = EfiFpHandle->GetInfo (
EfiFpHandle,
&gEfiFileSystemInfoGuid,
&SysInfoSize,
SysInfo
);
}
ASSERT (SysInfo != NULL);
if (Delete) {
*((CHAR16 *)SysInfo->VolumeLabel) = CHAR_NULL;
SysInfo->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (SysInfo->VolumeLabel);
Status = EfiFpHandle->SetInfo (
EfiFpHandle,
&gEfiFileSystemInfoGuid,
(UINTN)SysInfo->Size,
SysInfo
);
} else if (Name != NULL) {
Size1 = StrSize (Name);
Size2 = StrSize (SysInfo->VolumeLabel);
if (Size1 > Size2) {
SysInfo = ReallocatePool ((UINTN)SysInfo->Size, (UINTN)SysInfo->Size + Size1 - Size2, SysInfo);
if (SysInfo == NULL) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellLevel2HiiHandle, L"vol");
ShellStatus = SHELL_OUT_OF_RESOURCES;
}
}
if (SysInfo != NULL) {
StrCpyS (
(CHAR16 *)SysInfo->VolumeLabel,
(Size1 > Size2 ? Size1/sizeof (CHAR16) : Size2/sizeof (CHAR16)),
Name
);
SysInfo->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + Size1;
Status = EfiFpHandle->SetInfo (
EfiFpHandle,
&gEfiFileSystemInfoGuid,
(UINTN)SysInfo->Size,
SysInfo
);
}
}
FreePool (SysInfo);
if (Delete || (Name != NULL)) {
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_AD), gShellLevel2HiiHandle, L"vol", Path);
ShellStatus = SHELL_ACCESS_DENIED;
}
}
SysInfoSize = 0;
SysInfo = NULL;
Status = EfiFpHandle->GetInfo (
EfiFpHandle,
&gEfiFileSystemInfoGuid,
&SysInfoSize,
SysInfo
);
if (Status == EFI_BUFFER_TOO_SMALL) {
SysInfo = AllocateZeroPool (SysInfoSize);
Status = EfiFpHandle->GetInfo (
EfiFpHandle,
&gEfiFileSystemInfoGuid,
&SysInfoSize,
SysInfo
);
}
gEfiShellProtocol->CloseFile (ShellFileHandle);
ASSERT (SysInfo != NULL);
if (SysInfo != NULL) {
//
// print VolumeInfo table
//
ShellPrintHiiEx (
0,
gST->ConOut->Mode->CursorRow,
NULL,
STRING_TOKEN (STR_VOL_VOLINFO),
gShellLevel2HiiHandle,
SysInfo->VolumeLabel,
SysInfo->ReadOnly ? L"r" : L"rw",
SysInfo->VolumeSize,
SysInfo->FreeSpace,
SysInfo->BlockSize
);
SHELL_FREE_NON_NULL (SysInfo);
}
return (ShellStatus);
}
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{ L"-d", TypeFlag },
{ L"-n", TypeValue },
{ NULL, TypeMax }
};
/**
Function for 'Vol' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunVol (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
CONST CHAR16 *PathName;
CONST CHAR16 *CurDir;
BOOLEAN DeleteMode;
CHAR16 *FullPath;
CHAR16 *TempSpot;
UINTN Length;
CONST CHAR16 *NewName;
Length = 0;
ProblemParam = NULL;
ShellStatus = SHELL_SUCCESS;
PathName = NULL;
CurDir = NULL;
FullPath = NULL;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize ();
ASSERT_EFI_ERROR (Status);
//
// Fix local copies of the protocol pointers
//
Status = CommandInit ();
ASSERT_EFI_ERROR (Status);
//
// parse the command line
//
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR (Status)) {
if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"vol", ProblemParam);
FreePool (ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT (FALSE);
}
} else {
//
// check for "-?"
//
if (ShellCommandLineGetFlag (Package, L"-?")) {
ASSERT (FALSE);
}
if (ShellCommandLineGetCount (Package) > 2) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"vol");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
PathName = ShellCommandLineGetRawValue (Package, 1);
if (PathName == NULL) {
CurDir = gEfiShellProtocol->GetCurDir (NULL);
if (CurDir == NULL) {
ShellStatus = SHELL_NOT_FOUND;
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"vol");
} else {
PathName = CurDir;
}
}
if (PathName != NULL) {
TempSpot = StrStr (PathName, L":");
if (TempSpot != NULL) {
*TempSpot = CHAR_NULL;
}
TempSpot = StrStr (PathName, L"\\");
if (TempSpot != NULL) {
*TempSpot = CHAR_NULL;
}
StrnCatGrow (&FullPath, &Length, PathName, 0);
StrnCatGrow (&FullPath, &Length, L":\\", 0);
DeleteMode = ShellCommandLineGetFlag (Package, L"-d");
NewName = ShellCommandLineGetValue (Package, L"-n");
if (DeleteMode && ShellCommandLineGetFlag (Package, L"-n")) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CONFLICT), gShellLevel2HiiHandle, L"vol", L"-d", L"-n");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetFlag (Package, L"-n") && (NewName == NULL)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellLevel2HiiHandle, L"vol", L"-n");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if ((NewName != NULL) && (StrLen (NewName) > 11)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellLevel2HiiHandle, L"vol", NewName, L"-n");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellStatus == SHELL_SUCCESS) {
ShellStatus = HandleVol (
FullPath,
DeleteMode,
NewName
);
}
}
}
}
SHELL_FREE_NON_NULL (FullPath);
//
// free the command line package
//
ShellCommandLineFreeVarList (Package);
return (ShellStatus);
}
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