sys/dist/pf/net/if_compat.h

   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
  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_ */