1 // SPDX-License-Identifier: GPL-2.0
2 #include "reiserfs.h"
3 #include <linux/errno.h>
4 #include <linux/fs.h>
5 #include <linux/pagemap.h>
6 #include <linux/xattr.h>
7 #include "xattr.h"
8 #include <linux/uaccess.h>
9 
10 static int
user_get(const struct xattr_handler * handler,struct dentry * unused,struct inode * inode,const char * name,void * buffer,size_t size)11 user_get(const struct xattr_handler *handler, struct dentry *unused,
12 	 struct inode *inode, const char *name, void *buffer, size_t size)
13 {
14 	if (!reiserfs_xattrs_user(inode->i_sb))
15 		return -EOPNOTSUPP;
16 	return reiserfs_xattr_get(inode, xattr_full_name(handler, name),
17 				  buffer, size);
18 }
19 
20 static int
user_set(const struct xattr_handler * handler,struct mnt_idmap * idmap,struct dentry * unused,struct inode * inode,const char * name,const void * buffer,size_t size,int flags)21 user_set(const struct xattr_handler *handler, struct mnt_idmap *idmap,
22 	 struct dentry *unused,
23 	 struct inode *inode, const char *name, const void *buffer,
24 	 size_t size, int flags)
25 {
26 	if (!reiserfs_xattrs_user(inode->i_sb))
27 		return -EOPNOTSUPP;
28 	return reiserfs_xattr_set(inode,
29 				  xattr_full_name(handler, name),
30 				  buffer, size, flags);
31 }
32 
user_list(struct dentry * dentry)33 static bool user_list(struct dentry *dentry)
34 {
35 	return reiserfs_xattrs_user(dentry->d_sb);
36 }
37 
38 const struct xattr_handler reiserfs_xattr_user_handler = {
39 	.prefix = XATTR_USER_PREFIX,
40 	.get = user_get,
41 	.set = user_set,
42 	.list = user_list,
43 };
44