1 |
1275 |
phoenix |
/*
|
2 |
|
|
* Copyright (c) International Business Machines Corp., 2000-2002
|
3 |
|
|
*
|
4 |
|
|
* This program is free software; you can redistribute it and/or modify
|
5 |
|
|
* it under the terms of the GNU General Public License as published by
|
6 |
|
|
* the Free Software Foundation; either version 2 of the License, or
|
7 |
|
|
* (at your option) any later version.
|
8 |
|
|
*
|
9 |
|
|
* This program is distributed in the hope that it will be useful,
|
10 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
11 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
12 |
|
|
* the GNU General Public License for more details.
|
13 |
|
|
*
|
14 |
|
|
* You should have received a copy of the GNU General Public License
|
15 |
|
|
* along with this program; if not, write to the Free Software
|
16 |
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
17 |
|
|
*/
|
18 |
|
|
|
19 |
|
|
#ifndef H_JFS_XATTR
|
20 |
|
|
#define H_JFS_XATTR
|
21 |
|
|
|
22 |
|
|
/*
|
23 |
|
|
* jfs_ea_list describe the on-disk format of the extended attributes.
|
24 |
|
|
* I know the null-terminator is redundant since namelen is stored, but
|
25 |
|
|
* I am maintaining compatibility with OS/2 where possible.
|
26 |
|
|
*/
|
27 |
|
|
struct jfs_ea {
|
28 |
|
|
u8 flag; /* Unused? */
|
29 |
|
|
u8 namelen; /* Length of name */
|
30 |
|
|
u16 valuelen; /* Length of value */
|
31 |
|
|
char name[0]; /* Attribute name (includes null-terminator) */
|
32 |
|
|
}; /* Value immediately follows name */
|
33 |
|
|
|
34 |
|
|
struct jfs_ea_list {
|
35 |
|
|
u32 size; /* overall size */
|
36 |
|
|
struct jfs_ea ea[0]; /* Variable length list */
|
37 |
|
|
};
|
38 |
|
|
|
39 |
|
|
/* Macros for defining maxiumum number of bytes supported for EAs */
|
40 |
|
|
#define MAXEASIZE 65535
|
41 |
|
|
#define MAXEALISTSIZE MAXEASIZE
|
42 |
|
|
|
43 |
|
|
/*
|
44 |
|
|
* some macros for dealing with variable length EA lists.
|
45 |
|
|
*/
|
46 |
|
|
#define EA_SIZE(ea) \
|
47 |
|
|
(sizeof (struct jfs_ea) + (ea)->namelen + 1 + \
|
48 |
|
|
le16_to_cpu((ea)->valuelen))
|
49 |
|
|
#define NEXT_EA(ea) ((struct jfs_ea *) (((char *) (ea)) + (EA_SIZE (ea))))
|
50 |
|
|
#define FIRST_EA(ealist) ((ealist)->ea)
|
51 |
|
|
#define EALIST_SIZE(ealist) le32_to_cpu((ealist)->size)
|
52 |
|
|
#define END_EALIST(ealist) \
|
53 |
|
|
((struct jfs_ea *) (((char *) (ealist)) + EALIST_SIZE(ealist)))
|
54 |
|
|
|
55 |
|
|
extern int __jfs_setxattr(struct inode *, const char *, void *, size_t, int);
|
56 |
|
|
extern int jfs_setxattr(struct dentry *, const char *, void *, size_t, int);
|
57 |
|
|
extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t);
|
58 |
|
|
extern ssize_t jfs_getxattr(struct dentry *, const char *, void *, size_t);
|
59 |
|
|
extern ssize_t jfs_listxattr(struct dentry *, char *, size_t);
|
60 |
|
|
extern int jfs_removexattr(struct dentry *, const char *);
|
61 |
|
|
|
62 |
|
|
#endif /* H_JFS_XATTR */
|