sys/sys/uuid.h

   1 /*-
   2  * Copyright (c) 2002 Marcel Moolenaar
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/sys/uuid.h,v 1.6 2005/10/07 13:37:10 marcel Exp $
  27  * $DragonFly: src/sys/sys/uuid.h,v 1.4 2007/06/19 06:07:51 dillon Exp $
  28  */
  29
  30 #ifndef _SYS_UUID_H_
  31 #define _SYS_UUID_H_
  32
  33 #include <sys/cdefs.h>
  34
  35 /* Length of a node address (an IEEE 802 address). */
  36 #define _UUID_NODE_LEN          6
  37
  38 /*
  39  * See also:
  40  *      http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt
  41  *      http://www.opengroup.org/onlinepubs/009629399/apdxa.htm
  42  *
  43  * A DCE 1.1 compatible source representation of UUIDs.
  44  */
  45 struct uuid {
  46         uint32_t        time_low;
  47         uint16_t        time_mid;
  48         uint16_t        time_hi_and_version;
  49         uint8_t         clock_seq_hi_and_reserved;
  50         uint8_t         clock_seq_low;
  51         uint8_t         node[_UUID_NODE_LEN];
  52 };
  53
  54 #ifdef _KERNEL
  55
  56 #define UUID_NODE_LEN   _UUID_NODE_LEN
  57
  58 struct sbuf;
  59
  60 int kuuid_compare(const struct uuid *, const struct uuid *);
  61 int kuuid_is_nil(const struct uuid *);
  62 int kuuid_is_ccd(const struct uuid *);
  63 int kuuid_is_vinum(const struct uuid *);
  64
  65 int snprintf_uuid(char *, size_t, struct uuid *);
  66 int printf_uuid(struct uuid *);
  67 int sbuf_printf_uuid(struct sbuf *, struct uuid *);
  68 int parse_uuid(const char *, struct uuid *);
  69
  70 void be_uuid_dec(void const *buf, struct uuid *uuid);
  71 void be_uuid_enc(void *buf, struct uuid const *uuid);
  72 void le_uuid_dec(void const *buf, struct uuid *uuid);
  73 void le_uuid_enc(void *buf, struct uuid const *uuid);
  74
  75 #else   /* _KERNEL */
  76
  77 /* XXX namespace pollution? */
  78 typedef struct uuid uuid_t;
  79
  80 __BEGIN_DECLS
  81 int     uuidgen(struct uuid *, int);
  82 __END_DECLS
  83
  84 #endif  /* _KERNEL */
  85
  86 #endif /* _SYS_UUID_H_ */