xref: /kernel/linux/linux-6.6/fs/ext4/xattr_hurd.c (revision 62306a36) 
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/fs/ext4/xattr_hurd.c
4 * Handler for extended gnu attributes for the Hurd.
5 *
6 * Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
7 * Copyright (C) 2020 by Jan (janneke) Nieuwenhuizen, <janneke@gnu.org>
8 */
9
10#include <linux/init.h>
11#include <linux/string.h>
12#include "ext4.h"
13#include "xattr.h"
14
15static bool
16ext4_xattr_hurd_list(struct dentry *dentry)
17{
18	return test_opt(dentry->d_sb, XATTR_USER);
19}
20
21static int
22ext4_xattr_hurd_get(const struct xattr_handler *handler,
23		    struct dentry *unused, struct inode *inode,
24		    const char *name, void *buffer, size_t size)
25{
26	if (!test_opt(inode->i_sb, XATTR_USER))
27		return -EOPNOTSUPP;
28
29	return ext4_xattr_get(inode, EXT4_XATTR_INDEX_HURD,
30			      name, buffer, size);
31}
32
33static int
34ext4_xattr_hurd_set(const struct xattr_handler *handler,
35		    struct mnt_idmap *idmap,
36		    struct dentry *unused, struct inode *inode,
37		    const char *name, const void *value,
38		    size_t size, int flags)
39{
40	if (!test_opt(inode->i_sb, XATTR_USER))
41		return -EOPNOTSUPP;
42
43	return ext4_xattr_set(inode, EXT4_XATTR_INDEX_HURD,
44			      name, value, size, flags);
45}
46
47const struct xattr_handler ext4_xattr_hurd_handler = {
48	.prefix	= XATTR_HURD_PREFIX,
49	.list	= ext4_xattr_hurd_list,
50	.get	= ext4_xattr_hurd_get,
51	.set	= ext4_xattr_hurd_set,
52};
53