1 /*	$OpenBSD: if.h,v 1.91 2007/06/25 16:37:58 henning Exp $	*/
2 /*	$NetBSD: if_compat.h,v 1.2 2008/06/18 09:06:27 yamt Exp $	*/
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 
47 struct 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 
56 struct ifg_member {
57 	TAILQ_ENTRY(ifg_member)	 ifgm_next;
58 	struct ifnet		*ifgm_ifp;
59 };
60 
61 struct ifg_list {
62 	struct ifg_group	*ifgl_group;
63 	TAILQ_ENTRY(ifg_list)	 ifgl_next;
64 };
65 
66 TAILQ_HEAD(ifg_list_head, ifg_list);
67 
68 struct 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 
77 struct ifg_attrib {
78 	int	ifg_carp_demoted;
79 };
80 
81 /*
82  * Used to lookup groups for an interface
83  */
84 struct 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
98 void	if_init_groups(struct ifnet *);
99 void	if_destroy_groups(struct ifnet *);
100 struct	ifg_list_head *if_get_groups(struct ifnet *);
101 
102 struct	ifg_group *if_creategroup(const char *);
103 int	if_addgroup(struct ifnet *, const char *);
104 int	if_delgroup(struct ifnet *, const char *);
105 void	if_group_routechange(struct sockaddr *, struct sockaddr *);
106 #endif /* _KERNEL */
107 
108 #endif /* !_NET_IF_COMPAT_H_ */
109