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// 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 user_namespace *mnt_userns,
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,
};
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