83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2012-2013 Samsung Electronics Co., Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301, USA.
|
|
*/
|
|
|
|
/************************************************************************/
|
|
/* */
|
|
/* PROJECT : exFAT & FAT12/16/32 File System */
|
|
/* FILE : xattr.c */
|
|
/* PURPOSE : sdFAT code for supporting xattr(Extended File Attributes) */
|
|
/* */
|
|
/*----------------------------------------------------------------------*/
|
|
/* NOTES */
|
|
/* */
|
|
/* */
|
|
/************************************************************************/
|
|
|
|
#include <linux/file.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/xattr.h>
|
|
#include <linux/dcache.h>
|
|
#include "sdfat.h"
|
|
|
|
#ifndef CONFIG_SDFAT_VIRTUAL_XATTR_SELINUX_LABEL
|
|
#define CONFIG_SDFAT_VIRTUAL_XATTR_SELINUX_LABEL ("undefined")
|
|
#endif
|
|
|
|
static const char default_xattr[] = CONFIG_SDFAT_VIRTUAL_XATTR_SELINUX_LABEL;
|
|
|
|
static int can_support(const char *name)
|
|
{
|
|
if (!name || strcmp(name, "security.selinux"))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
int sdfat_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags)
|
|
{
|
|
if (can_support(name))
|
|
return -EOPNOTSUPP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
ssize_t sdfat_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
|
|
{
|
|
if (can_support(name))
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((size > strlen(default_xattr)+1) && value)
|
|
strcpy(value, default_xattr);
|
|
|
|
return strlen(default_xattr);
|
|
}
|
|
|
|
ssize_t sdfat_listxattr(struct dentry *dentry, char *list, size_t size)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int sdfat_removexattr(struct dentry *dentry, const char *name)
|
|
{
|
|
if (can_support(name))
|
|
return -EOPNOTSUPP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|