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 (c) 2000-2001 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #ifndef _DHCP_NETWORK_H
28 #define	_DHCP_NETWORK_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/param.h>
33 
34 /*
35  * Implementation-specific data structures and constants for the files0
36  * dhcp_network container.  These are subject to change at any time.
37  */
38 
39 #ifdef	__cplusplus
40 extern "C" {
41 #endif
42 
43 /*
44  * Per-record state describing the underlying record, including its
45  * position on-disk.
46  */
47 typedef struct dn_recpos {
48 	dn_rec_t	dnp_rec;	/* traditional record */
49 	size_t		dnp_size;	/* its size in the file */
50 	off_t		dnp_off;	/* its starting offset in the file */
51 } dn_recpos_t;
52 
53 /*
54  * Per-instance state for each instance of an open_dn().
55  */
56 typedef struct dn_handle {
57 	unsigned int	dh_oflags;	/* flags passed into open_dn() */
58 	char		dh_location[MAXPATHLEN];
59 	ipaddr_t	dh_net;
60 } dn_handle_t;
61 
62 /*
63  * Order of the fields in the on-disk record.
64  */
65 enum { DNF_CID, DNF_FLAGS, DNF_CIP, DNF_SIP, DNF_LEASE, DNF_MACRO,
66     DNF_COMMENT };
67 
68 #define	DNF_MAX_FIELDS		7	/* maximum number of fields */
69 #define	DNF_REQ_FIELDS		5	/* number of required fields */
70 #define	DNF_COMMENT_CHAR	'#'
71 
72 /*
73  * Constants for use with find_dn().
74  */
75 #define	FIND_PARTIAL	0x0001		/* allow partial success */
76 #define	FIND_POSITION	0x0002 		/* return dn_recpos_t's */
77 
78 #ifdef	__cplusplus
79 }
80 #endif
81 
82 #endif	/* _DHCP_NETWORK_H */
83