1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/fs/ext4/xattr_hurd.c
4*4882a593Smuzhiyun * Handler for extended gnu attributes for the Hurd.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
7*4882a593Smuzhiyun * Copyright (C) 2020 by Jan (janneke) Nieuwenhuizen, <janneke@gnu.org>
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/init.h>
11*4882a593Smuzhiyun #include <linux/string.h>
12*4882a593Smuzhiyun #include "ext4.h"
13*4882a593Smuzhiyun #include "xattr.h"
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun static bool
ext4_xattr_hurd_list(struct dentry * dentry)16*4882a593Smuzhiyun ext4_xattr_hurd_list(struct dentry *dentry)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun return test_opt(dentry->d_sb, XATTR_USER);
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun static int
ext4_xattr_hurd_get(const struct xattr_handler * handler,struct dentry * unused,struct inode * inode,const char * name,void * buffer,size_t size,int flags)22*4882a593Smuzhiyun ext4_xattr_hurd_get(const struct xattr_handler *handler,
23*4882a593Smuzhiyun struct dentry *unused, struct inode *inode,
24*4882a593Smuzhiyun const char *name, void *buffer, size_t size,
25*4882a593Smuzhiyun int flags)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun if (!test_opt(inode->i_sb, XATTR_USER))
28*4882a593Smuzhiyun return -EOPNOTSUPP;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun return ext4_xattr_get(inode, EXT4_XATTR_INDEX_HURD,
31*4882a593Smuzhiyun name, buffer, size);
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun static int
ext4_xattr_hurd_set(const struct xattr_handler * handler,struct dentry * unused,struct inode * inode,const char * name,const void * value,size_t size,int flags)35*4882a593Smuzhiyun ext4_xattr_hurd_set(const struct xattr_handler *handler,
36*4882a593Smuzhiyun struct dentry *unused, struct inode *inode,
37*4882a593Smuzhiyun const char *name, const void *value,
38*4882a593Smuzhiyun size_t size, int flags)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun if (!test_opt(inode->i_sb, XATTR_USER))
41*4882a593Smuzhiyun return -EOPNOTSUPP;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun return ext4_xattr_set(inode, EXT4_XATTR_INDEX_HURD,
44*4882a593Smuzhiyun name, value, size, flags);
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun const struct xattr_handler ext4_xattr_hurd_handler = {
48*4882a593Smuzhiyun .prefix = XATTR_HURD_PREFIX,
49*4882a593Smuzhiyun .list = ext4_xattr_hurd_list,
50*4882a593Smuzhiyun .get = ext4_xattr_hurd_get,
51*4882a593Smuzhiyun .set = ext4_xattr_hurd_set,
52*4882a593Smuzhiyun };
53