release/src/router/zebra/zebra/interface.h

   1 /* Interface function header.
   2  * Copyright (C) 1999 Kunihiro Ishiguro
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
  18  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19  * 02111-1307, USA.
  20  */
  21
  22 /* For interface multicast configuration. */
  23 #define IF_ZEBRA_MULTICAST_UNSPEC 0
  24 #define IF_ZEBRA_MULTICAST_ON     1
  25 #define IF_ZEBRA_MULTICAST_OFF    2
  26
  27 /* For interface shutdown configuration. */
  28 #define IF_ZEBRA_SHUTDOWN_UNSPEC 0
  29 #define IF_ZEBRA_SHUTDOWN_ON     1
  30 #define IF_ZEBRA_SHUTDOWN_OFF    2
  31
  32 /* Router advertisement feature. */
  33 #if (defined(LINUX_IPV6) && (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1)) || defined(KAME)
  34 #define RTADV
  35 #endif
  36
  37 #ifdef RTADV
  38 /* Router advertisement parameter.  From RFC2461. */
  39 struct rtadvconf
  40 {
  41   /* A flag indicating whether or not the router sends periodic Router
  42      Advertisements and responds to Router Solicitations.
  43      Default: FALSE */
  44   int AdvSendAdvertisements;
  45
  46   /* The maximum time allowed between sending unsolicited multicast
  47      Router Advertisements from the interface, in seconds.  MUST be no
  48      less than 4 seconds and no greater than 1800 seconds.
  49
  50      Default: 600 seconds */
  51   int MaxRtrAdvInterval;
  52 #define RTADV_MAX_RTR_ADV_INTERVAL 600
  53
  54   /* The minimum time allowed between sending unsolicited multicast
  55      Router Advertisements from the interface, in seconds.  MUST be no
  56      less than 3 seconds and no greater than .75 * MaxRtrAdvInterval.
  57
  58      Default: 0.33 * MaxRtrAdvInterval */
  59   int MinRtrAdvInterval;
  60 #define RTADV_MIN_RTR_ADV_INTERVAL (0.33 * RTADV_MAX_RTR_ADV_INTERVAL)
  61
  62   /* Unsolicited Router Advertisements' interval timer. */
  63   int AdvIntervalTimer;
  64
  65   /* The TRUE/FALSE value to be placed in the "Managed address
  66      configuration" flag field in the Router Advertisement.  See
  67      [ADDRCONF].
  68
  69      Default: FALSE */
  70   int AdvManagedFlag;
  71
  72
  73   /* The TRUE/FALSE value to be placed in the "Other stateful
  74      configuration" flag field in the Router Advertisement.  See
  75      [ADDRCONF].
  76
  77      Default: FALSE */
  78   int AdvOtherConfigFlag;
  79
  80   /* The value to be placed in MTU options sent by the router.  A
  81      value of zero indicates that no MTU options are sent.
  82
  83      Default: 0 */
  84   int AdvLinkMTU;
  85
  86
  87   /* The value to be placed in the Reachable Time field in the Router
  88      Advertisement messages sent by the router.  The value zero means
  89      unspecified (by this router).  MUST be no greater than 3,600,000
  90      milliseconds (1 hour).
  91
  92      Default: 0 */
  93   u_int32_t AdvReachableTime;
  94 #define RTADV_MAX_REACHABLE_TIME 3600000
  95
  96
  97   /* The value to be placed in the Retrans Timer field in the Router
  98      Advertisement messages sent by the router.  The value zero means
  99      unspecified (by this router).
 100
 101      Default: 0 */
 102   int AdvRetransTimer;
 103
 104   /* The default value to be placed in the Cur Hop Limit field in the
 105      Router Advertisement messages sent by the router.  The value
 106      should be set to that current diameter of the Internet.  The
 107      value zero means unspecified (by this router).
 108
 109      Default: The value specified in the "Assigned Numbers" RFC
 110      [ASSIGNED] that was in effect at the time of implementation. */
 111   int AdvCurHopLimit;
 112
 113   /* The value to be placed in the Router Lifetime field of Router
 114      Advertisements sent from the interface, in seconds.  MUST be
 115      either zero or between MaxRtrAdvInterval and 9000 seconds.  A
 116      value of zero indicates that the router is not to be used as a
 117      default router.
 118
 119      Default: 3 * MaxRtrAdvInterval */
 120   int AdvDefaultLifetime;
 121 #define RTADV_ADV_DEFAULT_LIFETIME (3 * RTADV_MAX_RTR_ADV_INTERVAL)
 122
 123
 124   /* A list of prefixes to be placed in Prefix Information options in
 125      Router Advertisement messages sent from the interface.
 126
 127      Default: all prefixes that the router advertises via routing
 128      protocols as being on-link for the interface from which the
 129      advertisement is sent. The link-local prefix SHOULD NOT be
 130      included in the list of advertised prefixes. */
 131   list AdvPrefixList;
 132 };
 133
 134 #endif /* RTADV */
 135
 136 /* `zebra' daemon local interface structure. */
 137 struct zebra_if
 138 {
 139   /* Shutdown configuration. */
 140   u_char shutdown;
 141
 142   /* Multicast configuration. */
 143   u_char multicast;
 144
 145   /* Router advertise configuration. */
 146   u_char rtadv_enable;
 147
 148   /* Interface's address. */
 149   list address;
 150
 151 #ifdef RTADV
 152   struct rtadvconf rtadv;
 153 #endif /* RTADV */
 154
 155 #ifdef HAVE_IRDP
 156 #include "irdp.h"
 157   struct irdp_interface irdp;
 158 #endif
 159
 160 };
 161
 162 void if_delete_update (struct interface *ifp);
 163 void if_add_update (struct interface *ifp);
 164 void if_up (struct interface *);
 165 void if_down (struct interface *);
 166 void if_refresh (struct interface *);
 167 void zebra_interface_up_update (struct interface *ifp);
 168 void zebra_interface_down_update (struct interface *ifp);
 169
 170 #ifdef HAVE_PROC_NET_DEV
 171 int ifstat_update_proc ();
 172 #endif /* HAVE_PROC_NET_DEV */
 173 #ifdef HAVE_NET_RT_IFLIST
 174 void ifstat_update_sysctl ();
 175
 176 #endif /* HAVE_NET_RT_IFLIST */
 177 #ifdef HAVE_PROC_NET_DEV
 178 int interface_list_proc ();
 179 #endif /* HAVE_PROC_NET_DEV */
 180 #ifdef HAVE_PROC_NET_IF_INET6
 181 int ifaddr_proc_ipv6 ();
 182 #endif /* HAVE_PROC_NET_IF_INET6 */
 183
 184 #ifdef BSDI
 185 int if_kvm_get_mtu (struct interface *);
 186 #endif /* BSDI */