xref: /openbsd-src/sys/sys/uuid.h (revision 9a210c530b30b010d47b1a14769d2c41703ce80e)
1 /*	$OpenBSD: uuid.h,v 1.3 2014/08/31 09:36:39 miod Exp $	*/
2 /*	$NetBSD: uuid.h,v 1.5 2008/11/18 14:01:03 joerg Exp $	*/
3 
4 /*
5  * Copyright (c) 2002 Marcel Moolenaar
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  *
29  * $FreeBSD: /repoman/r/ncvs/src/sys/sys/uuid.h,v 1.3 2003/05/31 16:47:07 phk Exp $
30  */
31 
32 #ifndef _SYS_UUID_H_
33 #define	_SYS_UUID_H_
34 
35 /* Length of a node address (an IEEE 802 address). */
36 #define	_UUID_NODE_LEN		6
37 
38 /* Length of a printed UUID. */
39 #define	_UUID_BUF_LEN		38
40 
41 /*
42  * See also:
43  *      http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt
44  *      http://www.opengroup.org/onlinepubs/009629399/apdxa.htm
45  *
46  * A DCE 1.1 compatible source representation of UUIDs.
47  */
48 struct uuid {
49 	uint32_t	time_low;
50 	uint16_t	time_mid;
51 	uint16_t	time_hi_and_version;
52 	uint8_t		clock_seq_hi_and_reserved;
53 	uint8_t		clock_seq_low;
54 	uint8_t		node[_UUID_NODE_LEN];
55 };
56 
57 #ifdef _KERNEL
58 
59 #define	UUID_NODE_LEN	_UUID_NODE_LEN
60 #define	UUID_BUF_LEN	_UUID_BUF_LEN
61 
62 int	uuid_snprintf(char *, size_t, const struct uuid *);
63 int	uuid_printf(const struct uuid *);
64 void	uuid_dec_be(const void *, struct uuid *);
65 void	uuid_dec_le(const void *, struct uuid *);
66 void	uuid_enc_be(void *, const struct uuid *);
67 void	uuid_enc_le(void *, const struct uuid *);
68 
69 #else	/* _KERNEL */
70 
71 typedef struct uuid uuid_t;
72 
73 #endif	/* _KERNEL */
74 
75 #endif /* _SYS_UUID_H_ */
76