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      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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	_UUID_MISC_H
     27 #define	_UUID_MISC_H
     28 
     29 /*
     30  * The copyright in this file is taken from the original Leach
     31  * & Salz UUID specification, from which this implementation
     32  * is derived.
     33  */
     34 
     35 /*
     36  * Copyright (c) 1990- 1993, 1996 Open Software Foundation, Inc.
     37  * Copyright (c) 1989 by Hewlett-Packard Company, Palo Alto, Ca. &
     38  * Digital Equipment Corporation, Maynard, Mass.  Copyright (c) 1998
     39  * Microsoft.  To anyone who acknowledges that this file is provided
     40  * "AS IS" without any express or implied warranty: permission to use,
     41  * copy, modify, and distribute this file for any purpose is hereby
     42  * granted without fee, provided that the above copyright notices and
     43  * this notice appears in all source code copies, and that none of the
     44  * names of Open Software Foundation, Inc., Hewlett-Packard Company,
     45  * or Digital Equipment Corporation be used in advertising or
     46  * publicity pertaining to distribution of the software without
     47  * specific, written prior permission.  Neither Open Software
     48  * Foundation, Inc., Hewlett-Packard Company, Microsoft, nor Digital
     49  * Equipment Corporation makes any representations about the
     50  * suitability of this software for any purpose.
     51  */
     52 
     53 #ifdef	__cplusplus
     54 extern "C" {
     55 #endif
     56 
     57 #include <uuid/uuid.h>
     58 #include <sys/types.h>
     59 #include <thread.h>
     60 
     61 typedef uint64_t		uuid_time_t;
     62 
     63 /*
     64  * data type for UUID generator persistent state
     65  */
     66 typedef struct {
     67 	uuid_time_t		ts;	/* saved timestamp */
     68 	uuid_node_t		node;	/* saved node ID */
     69 	uint16_t		clock;	/* saved clock sequence */
     70 } uuid_state_t;
     71 
     72 typedef struct {
     73 	mutex_t			lock;
     74 	uuid_state_t		state;
     75 } shared_buffer_t;
     76 
     77 #define	STATE_LOCATION		"/var/sadm/system/uuid_state"
     78 #define	URANDOM_PATH		"/dev/urandom"
     79 #define	MAX_RETRY		8
     80 #define	VER1_MASK		0xefff
     81 
     82 #define	STATE_FILE		1
     83 #define	TEMP_FILE		2
     84 
     85 #ifdef	__cplusplus
     86 }
     87 #endif
     88 
     89 #endif /* _UUID_MISC_H */
     90