1#include <linux/reiserfs_fs.h>
2#include <linux/errno.h>
3#include <linux/fs.h>
4#include <linux/pagemap.h>
5#include <linux/xattr.h>
6#include <linux/reiserfs_xattr.h>
7#include <asm/uaccess.h>
8
9#ifdef CONFIG_REISERFS_FS_POSIX_ACL
10# include <linux/reiserfs_acl.h>
11#endif
12
13#define XATTR_USER_PREFIX "user."
14
15static int
16user_get(struct inode *inode, const char *name, void *buffer, size_t size)
17{
18
19	if (strlen(name) < sizeof(XATTR_USER_PREFIX))
20		return -EINVAL;
21	if (!reiserfs_xattrs_user(inode->i_sb))
22		return -EOPNOTSUPP;
23	return reiserfs_xattr_get(inode, name, buffer, size);
24}
25
26static int
27user_set(struct inode *inode, const char *name, const void *buffer,
28	 size_t size, int flags)
29{
30
31	if (strlen(name) < sizeof(XATTR_USER_PREFIX))
32		return -EINVAL;
33
34	if (!reiserfs_xattrs_user(inode->i_sb))
35		return -EOPNOTSUPP;
36	return reiserfs_xattr_set(inode, name, buffer, size, flags);
37}
38
39static int user_del(struct inode *inode, const char *name)
40{
41	if (strlen(name) < sizeof(XATTR_USER_PREFIX))
42		return -EINVAL;
43
44	if (!reiserfs_xattrs_user(inode->i_sb))
45		return -EOPNOTSUPP;
46	return 0;
47}
48
49static int
50user_list(struct inode *inode, const char *name, int namelen, char *out)
51{
52	int len = namelen;
53	if (!reiserfs_xattrs_user(inode->i_sb))
54		return 0;
55
56	if (out)
57		memcpy(out, name, len);
58
59	return len;
60}
61
62struct reiserfs_xattr_handler user_handler = {
63	.prefix = XATTR_USER_PREFIX,
64	.get = user_get,
65	.set = user_set,
66	.del = user_del,
67	.list = user_list,
68};
69