51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* linux/fs/ext4/xattr_user.c
|
||
|
|
* Handler for extended user attributes.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/string.h>
|
||
|
|
#include <linux/fs.h>
|
||
|
|
#include "ext4_jbd2.h"
|
||
|
|
#include "ext4.h"
|
||
|
|
#include "xattr.h"
|
||
|
|
|
||
|
|
static bool
|
||
|
|
ext4_xattr_user_list(struct dentry *dentry)
|
||
|
|
{
|
||
|
|
return test_opt(dentry->d_sb, XATTR_USER);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
ext4_xattr_user_get(const struct xattr_handler *handler,
|
||
|
|
struct dentry *unused, struct inode *inode,
|
||
|
|
const char *name, void *buffer, size_t size)
|
||
|
|
{
|
||
|
|
if (!test_opt(inode->i_sb, XATTR_USER))
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_USER,
|
||
|
|
name, buffer, size);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
ext4_xattr_user_set(const struct xattr_handler *handler,
|
||
|
|
struct mnt_idmap *idmap,
|
||
|
|
struct dentry *unused, struct inode *inode,
|
||
|
|
const char *name, const void *value,
|
||
|
|
size_t size, int flags)
|
||
|
|
{
|
||
|
|
if (!test_opt(inode->i_sb, XATTR_USER))
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
return ext4_xattr_set(inode, EXT4_XATTR_INDEX_USER,
|
||
|
|
name, value, size, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
const struct xattr_handler ext4_xattr_user_handler = {
|
||
|
|
.prefix = XATTR_USER_PREFIX,
|
||
|
|
.list = ext4_xattr_user_list,
|
||
|
|
.get = ext4_xattr_user_get,
|
||
|
|
.set = ext4_xattr_user_set,
|
||
|
|
};
|