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 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/types.h>
33 #include <sys/param.h>
34 #include <netinet/in.h>
35 #include <dhcp_svc_public.h>
36 
37 /*
38  * Implementation-specific data structures for the files dhcp_network
39  * container.  These structures are subject to change at any time.
40  */
41 
42 #ifdef	__cplusplus
43 extern "C" {
44 #endif
45 
46 /*
47  * Per-record state describing the underlying record, including its
48  * position on-disk.
49  */
50 typedef struct dn_recpos {
51 	dn_rec_t	dnp_rec;	/* traditional record */
52 	size_t		dnp_size;	/* its size in the file */
53 	off_t		dnp_off;	/* its starting offset in the file */
54 } dn_recpos_t;
55 
56 /*
57  * Per-record state for the underlying on-disk record representation.  Note
58  * that `dnf_cid' is twice its usual maximum length (plus room for a NUL
59  * byte) since it doubles in size when converted to ASCII; `dnf_macro' and
60  * `dnf_comment' are twice their usual maximum length in case we need to
61  * escape every character in them.
62  */
63 typedef struct dn_filerec {
64 	char		dnf_cip[INET_ADDRSTRLEN];
65 	char		dnf_cid[DN_MAX_CID_LEN * 2 + 1];
66 	uint16_t	dnf_flags;
67 	char		dnf_sip[INET_ADDRSTRLEN];
68 	uint32_t	dnf_lease;
69 	uint64_t	dnf_sig;
70 	char		dnf_macro[DSVC_MAX_MACSYM_LEN * 2 + 1];
71 	char		dnf_comment[DN_MAX_COMMENT_LEN * 2 + 1];
72 } dn_filerec_t;
73 
74 /*
75  * Per-instance state for each instance of an open_dn()
76  */
77 typedef struct dn_handle {
78 	unsigned int	dh_oflags;	/* flags passed into open_dn() */
79 	char		dh_location[MAXPATHLEN];
80 	ipaddr_t	dh_net;
81 } dn_handle_t;
82 
83 /*
84  * Order of the fields in the on-disk record.
85  */
86 enum { DNF_CIP, DNF_CID, DNF_FLAGS, DNF_SIP, DNF_LEASE, DNF_SIG, DNF_MACRO,
87 	DNF_COMMENT };
88 
89 #define	DNF_FIELDS		8	/* number of fields per record */
90 #define	DNF_COMMENT_CHAR	'#'
91 
92 /*
93  * Constants for use with find_dn()
94  */
95 #define	FIND_PARTIAL	0x0001		/* allow partial success */
96 #define	FIND_POSITION	0x0002 		/* return dn_recpos_t's */
97 
98 #ifdef	__cplusplus
99 }
100 #endif
101 
102 #endif	/* _DHCP_NETWORK_H */
103