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