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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>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#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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