xref: /netbsd-src/sys/sys/xattr.h (revision 803cf262432e866a9b48d6feba6c75d98e7e32b4)
1 /*	$NetBSD: xattr.h,v 1.5 2011/09/27 01:40:32 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 2005 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * Support for file system extended attributes.
34  *
35  * This provides an interface that is compatible with Linux's extended
36  * attribute support.  These calls operate on the same extended attributes
37  * as <sys/extattr.h>, but access only the "user" namespace.
38  */
39 
40 #ifndef _SYS_XATTR_H_
41 #define	_SYS_XATTR_H_
42 
43 #include <sys/types.h>
44 #include <sys/param.h>
45 
46 /*
47  * This is compatible with EXTATTR_MAXNAMELEN, and also happens to be
48  * the same as Linux (255).
49  */
50 #define	XATTR_NAME_MAX		KERNEL_NAME_MAX
51 
52 #define	XATTR_SIZE_MAX		65536	/* NetBSD does not enforce this */
53 
54 #define	XATTR_CREATE		0x01	/* create, don't replace xattr */
55 #define	XATTR_REPLACE		0x02	/* replace, don't create xattr */
56 
57 #ifndef _KERNEL
58 
59 #include <sys/cdefs.h>
60 
61 __BEGIN_DECLS
62 int	setxattr(const char *, const char *, const void *, size_t, int);
63 int	lsetxattr(const char *, const char *, const void *, size_t, int);
64 int	fsetxattr(int, const char *, const void *, size_t, int);
65 
66 ssize_t	getxattr(const char *, const char *, void *, size_t);
67 ssize_t	lgetxattr(const char *, const char *, void *, size_t);
68 ssize_t	fgetxattr(int, const char *, void *, size_t);
69 
70 ssize_t	listxattr(const char *, char *, size_t);
71 ssize_t	llistxattr(const char *, char *, size_t);
72 ssize_t	flistxattr(int, char *, size_t);
73 
74 int	removexattr(const char *, const char *);
75 int	lremovexattr(const char *, const char *);
76 int	fremovexattr(int, const char *);
77 __END_DECLS
78 
79 #endif /* ! _KERNEL */
80 
81 #endif /* _SYS_XATTR_H_ */
82