xref: /titanic_41/usr/src/cmd/cmd-inet/usr.lib/in.ripngd/table.h (revision fa9e4066f08beec538e775443c5be79dd423fcab)
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 1999 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 /*
31  * Portions of this source code were derived from Berkeley 4.3 BSD
32  * under license from the Regents of the University of California.
33  */
34 
35 #pragma ident	"%Z%%M%	%I%	%E% SMI"
36 
37 /*
38  * Routing table management daemon.
39  */
40 
41 /*
42  * Routing table structure; differs a bit from kernel tables.
43  */
44 struct rthash {
45 	struct	rt_entry *rt_forw;
46 	struct	rt_entry *rt_back;
47 };
48 
49 struct rt_entry {
50 	struct	rt_entry *rt_forw;
51 	struct	rt_entry *rt_back;
52 	uint_t	rt_hash;		/* for net or host */
53 	struct	in6_addr rt_dst;	/* match value */
54 	struct	in6_addr rt_router;	/* who to forward to */
55 	int	rt_prefix_length;	/* bits in prefix */
56 	struct	interface *rt_ifp;	/* interface to take */
57 	uint_t	rt_flags;		/* kernel flags */
58 	uint_t	rt_state;		/* see below */
59 	int	rt_timer;		/* for invalidation */
60 	int	rt_metric;		/* cost of route including the if */
61 	int	rt_tag;			/* route tag attribute */
62 };
63 
64 #define	ROUTEHASHSIZ	32		/* must be a power of 2 */
65 #define	ROUTEHASHMASK	(ROUTEHASHSIZ - 1)
66 
67 /*
68  * "State" of routing table entry.
69  */
70 #define	RTS_CHANGED	0x1		/* route has been altered recently */
71 #define	RTS_INTERFACE	0x2		/* route is for network interface */
72 #define	RTS_PRIVATE	0x4		/* route is private, do not advertise */
73 
74 /*
75  * XXX This is defined in <inet/ip.h> (but should be defined in <netinet/ip6.h>
76  * for completeness).
77  */
78 #define	IPV6_ABITS	128		/* Number of bits in an IPv6 address */
79 
80 extern struct	rthash	*net_hashes[IPV6_ABITS + 1];
81 
82 extern void	rtadd(struct in6_addr *, struct in6_addr *, int, int, int,
83     boolean_t, struct interface *);
84 extern void	rtchange(struct rt_entry *, struct in6_addr *, short,
85     struct interface *);
86 extern void	rtchangeall(void);
87 extern void	rtcreate_prefix(struct in6_addr *, struct in6_addr *, int);
88 extern void	rtdelete(struct rt_entry *);
89 extern void	rtdown(struct rt_entry *);
90 extern void	rtdump(void);
91 extern struct	rt_entry *rtlookup(struct in6_addr *, int);
92 extern void	rtpurgeif(struct interface *);
93