include/sys/uuid.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _SYS_UUID_H
  28 #define _SYS_UUID_H
  29
  30 #ifdef  __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 /*
  35  * The copyright in this file is taken from the original Leach
  36  * & Salz UUID specification, from which this implementation
  37  * is derived.
  38  */
  39
  40 /*
  41  * Copyright (c) 1990- 1993, 1996 Open Software Foundation, Inc.
  42  * Copyright (c) 1989 by Hewlett-Packard Company, Palo Alto, Ca. &
  43  * Digital Equipment Corporation, Maynard, Mass.  Copyright (c) 1998
  44  * Microsoft.  To anyone who acknowledges that this file is provided
  45  * "AS IS" without any express or implied warranty: permission to use,
  46  * copy, modify, and distribute this file for any purpose is hereby
  47  * granted without fee, provided that the above copyright notices and
  48  * this notice appears in all source code copies, and that none of the
  49  * names of Open Software Foundation, Inc., Hewlett-Packard Company,
  50  * or Digital Equipment Corporation be used in advertising or
  51  * publicity pertaining to distribution of the software without
  52  * specific, written prior permission.  Neither Open Software
  53  * Foundation, Inc., Hewlett-Packard Company, Microsoft, nor Digital
  54  * Equipment Corporation makes any representations about the
  55  * suitability of this software for any purpose.
  56  */
  57
  58 #include <sys/types.h>
  59 #include <sys/byteorder.h>
  60
  61 typedef struct {
  62         uint8_t         nodeID[6];
  63 } uuid_node_t;
  64
  65 /*
  66  * The uuid type used throughout when referencing uuids themselves
  67  */
  68 struct uuid {
  69         uint32_t        time_low;
  70         uint16_t        time_mid;
  71         uint16_t        time_hi_and_version;
  72         uint8_t         clock_seq_hi_and_reserved;
  73         uint8_t         clock_seq_low;
  74         uint8_t         node_addr[6];
  75 };
  76
  77 #define UUID_PRINTABLE_STRING_LENGTH 37
  78
  79 /*
  80  * Convert a uuid to/from little-endian format
  81  */
  82 #define UUID_LE_CONVERT(dest, src)                                      \
  83 {                                                                       \
  84         (dest) = (src);                                                 \
  85         (dest).time_low = LE_32((dest).time_low);                       \
  86         (dest).time_mid = LE_16((dest).time_mid);                       \
  87         (dest).time_hi_and_version = LE_16((dest).time_hi_and_version); \
  88 }
  89
  90 #ifdef __cplusplus
  91 }
  92 #endif
  93
  94 #endif /* _SYS_UUID_H */