1/*	$OpenBSD: if.h,v 1.91 2007/06/25 16:37:58 henning Exp $	*/
2/*	$NetBSD$	*/
3
4/*
5 * Copyright (c) 1982, 1986, 1989, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	@(#)if.h	8.1 (Berkeley) 6/10/93
33 */
34
35#ifndef _NET_IF_COMPAT_H_
36#define _NET_IF_COMPAT_H_
37
38#include <sys/queue.h>
39
40/*
41 * interface groups
42 */
43
44#define	IFG_ALL		"all"		/* group contains all interfaces */
45#define	IFG_EGRESS	"egress"	/* if(s) default route(s) point to */
46
47struct ifg_group {
48	char				 ifg_group[IFNAMSIZ];
49	u_int				 ifg_refcnt;
50	void				*ifg_pf_kif;
51	int				 ifg_carp_demoted;
52	TAILQ_HEAD(, ifg_member)	 ifg_members;
53	TAILQ_ENTRY(ifg_group)		 ifg_next;
54};
55
56struct ifg_member {
57	TAILQ_ENTRY(ifg_member)	 ifgm_next;
58	struct ifnet		*ifgm_ifp;
59};
60
61struct ifg_list {
62	struct ifg_group	*ifgl_group;
63	TAILQ_ENTRY(ifg_list)	 ifgl_next;
64};
65
66TAILQ_HEAD(ifg_list_head, ifg_list);
67
68struct ifg_req {
69	union {
70		char			 ifgrqu_group[IFNAMSIZ];
71		char			 ifgrqu_member[IFNAMSIZ];
72	} ifgrq_ifgrqu;
73#define	ifgrq_group	ifgrq_ifgrqu.ifgrqu_group
74#define	ifgrq_member	ifgrq_ifgrqu.ifgrqu_member
75};
76
77struct ifg_attrib {
78	int	ifg_carp_demoted;
79};
80
81/*
82 * Used to lookup groups for an interface
83 */
84struct ifgroupreq {
85	char	ifgr_name[IFNAMSIZ];
86	u_int	ifgr_len;
87	union {
88		char			 ifgru_group[IFNAMSIZ];
89		struct	ifg_req		*ifgru_groups;
90		struct	ifg_attrib	 ifgru_attrib;
91	} ifgr_ifgru;
92#define ifgr_group	ifgr_ifgru.ifgru_group
93#define ifgr_groups	ifgr_ifgru.ifgru_groups
94#define ifgr_attrib	ifgr_ifgru.ifgru_attrib
95};
96
97#ifdef _KERNEL
98void	if_init_groups(struct ifnet *);
99void	if_destroy_groups(struct ifnet *);
100struct	ifg_list_head *if_get_groups(struct ifnet *);
101
102struct	ifg_group *if_creategroup(const char *);
103int	if_addgroup(struct ifnet *, const char *);
104int	if_delgroup(struct ifnet *, const char *);
105void	if_group_routechange(struct sockaddr *, struct sockaddr *);
106#endif /* _KERNEL */
107
108#endif /* !_NET_IF_COMPAT_H_ */
109