ospf6d/ospf6_interface.h

   1 /*
   2  * Copyright (C) 2003 Yasuhiro Ohara
   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
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef OSPF6_INTERFACE_H
  23 #define OSPF6_INTERFACE_H
  24
  25 #include "qobj.h"
  26 #include "hook.h"
  27 #include "if.h"
  28
  29 /* Debug option */
  30 extern unsigned char conf_debug_ospf6_interface;
  31 #define OSPF6_DEBUG_INTERFACE_ON() \
  32   (conf_debug_ospf6_interface = 1)
  33 #define OSPF6_DEBUG_INTERFACE_OFF() \
  34   (conf_debug_ospf6_interface = 0)
  35 #define IS_OSPF6_DEBUG_INTERFACE \
  36   (conf_debug_ospf6_interface)
  37
  38 /* Interface structure */
  39 struct ospf6_interface
  40 {
  41   /* IF info from zebra */
  42   struct interface *interface;
  43
  44   /* back pointer */
  45   struct ospf6_area *area;
  46
  47   /* list of ospf6 neighbor */
  48   struct list *neighbor_list;
  49
  50   /* linklocal address of this I/F */
  51   struct in6_addr *linklocal_addr;
  52
  53   /* Interface ID; use interface->ifindex */
  54
  55   /* ospf6 instance id */
  56   u_char instance_id;
  57
  58   /* I/F transmission delay */
  59   u_int32_t transdelay;
  60
  61   /* Network Type */
  62   u_char type;
  63
  64   /* Router Priority */
  65   u_char priority;
  66
  67   /* Time Interval */
  68   u_int16_t hello_interval;
  69   u_int16_t dead_interval;
  70   u_int32_t rxmt_interval;
  71
  72   u_int32_t state_change;
  73
  74   /* Cost */
  75   u_int32_t cost;
  76
  77   /* I/F MTU */
  78   u_int32_t ifmtu;
  79
  80   /* Interface State */
  81   u_char state;
  82
  83   /* Interface socket setting trial counter, resets on success */
  84   u_char sso_try_cnt;
  85
  86   /* OSPF6 Interface flag */
  87   char flag;
  88
  89   /* MTU mismatch check */
  90   u_char mtu_ignore;
  91
  92   /* Decision of DR Election */
  93   u_int32_t drouter;
  94   u_int32_t bdrouter;
  95   u_int32_t prev_drouter;
  96   u_int32_t prev_bdrouter;
  97
  98   /* Linklocal LSA Database: includes Link-LSA */
  99   struct ospf6_lsdb *lsdb;
 100   struct ospf6_lsdb *lsdb_self;
 101
 102   struct ospf6_lsdb *lsupdate_list;
 103   struct ospf6_lsdb *lsack_list;
 104
 105   /* Ongoing Tasks */
 106   struct thread *thread_send_hello;
 107   struct thread *thread_send_lsupdate;
 108   struct thread *thread_send_lsack;
 109
 110   struct thread *thread_network_lsa;
 111   struct thread *thread_link_lsa;
 112   struct thread *thread_intra_prefix_lsa;
 113
 114   struct ospf6_route_table *route_connected;
 115
 116   /* prefix-list name to filter connected prefix */
 117   char *plist_name;
 118
 119   /* BFD information */
 120   void *bfd_info;
 121
 122   QOBJ_FIELDS
 123 };
 124 DECLARE_QOBJ_TYPE(ospf6_interface)
 125
 126 /* interface state */
 127 #define OSPF6_INTERFACE_NONE             0
 128 #define OSPF6_INTERFACE_DOWN             1
 129 #define OSPF6_INTERFACE_LOOPBACK         2
 130 #define OSPF6_INTERFACE_WAITING          3
 131 #define OSPF6_INTERFACE_POINTTOPOINT     4
 132 #define OSPF6_INTERFACE_DROTHER          5
 133 #define OSPF6_INTERFACE_BDR              6
 134 #define OSPF6_INTERFACE_DR               7
 135 #define OSPF6_INTERFACE_MAX              8
 136
 137 extern const char *ospf6_interface_state_str[];
 138
 139 /* flags */
 140 #define OSPF6_INTERFACE_DISABLE      0x01
 141 #define OSPF6_INTERFACE_PASSIVE      0x02
 142 #define OSPF6_INTERFACE_NOAUTOCOST   0x04
 143
 144 /* default values */
 145 #define OSPF6_INTERFACE_HELLO_INTERVAL 10
 146 #define OSPF6_INTERFACE_DEAD_INTERVAL  40
 147 #define OSPF6_INTERFACE_RXMT_INTERVAL  5
 148 #define OSPF6_INTERFACE_COST           1
 149 #define OSPF6_INTERFACE_PRIORITY       1
 150 #define OSPF6_INTERFACE_TRANSDELAY     1
 151 #define OSPF6_INTERFACE_INSTANCE_ID    0
 152 #define OSPF6_INTERFACE_BANDWIDTH      10000   /* Mbps */
 153 #define OSPF6_REFERENCE_BANDWIDTH      100000  /* Mbps */
 154 #define OSPF6_INTERFACE_SSO_RETRY_INT  1
 155 #define OSPF6_INTERFACE_SSO_RETRY_MAX  5
 156
 157
 158 /* Function Prototypes */
 159
 160 extern struct ospf6_interface *ospf6_interface_lookup_by_ifindex (ifindex_t);
 161 extern struct ospf6_interface *ospf6_interface_create (struct interface *);
 162 extern void ospf6_interface_delete (struct ospf6_interface *);
 163
 164 extern void ospf6_interface_enable (struct ospf6_interface *);
 165 extern void ospf6_interface_disable (struct ospf6_interface *);
 166
 167 extern void ospf6_interface_if_add (struct interface *);
 168 extern void ospf6_interface_if_del (struct interface *);
 169 extern void ospf6_interface_state_update (struct interface *);
 170 extern void ospf6_interface_connected_route_update (struct interface *);
 171
 172 /* interface event */
 173 extern int interface_up (struct thread *);
 174 extern int interface_down (struct thread *);
 175 extern int wait_timer (struct thread *);
 176 extern int backup_seen (struct thread *);
 177 extern int neighbor_change (struct thread *);
 178
 179 extern void ospf6_interface_init (void);
 180
 181 extern void install_element_ospf6_clear_interface (void);
 182
 183 extern int config_write_ospf6_debug_interface (struct vty *vty);
 184 extern void install_element_ospf6_debug_interface (void);
 185
 186 DECLARE_HOOK(ospf6_interface_change,
 187                 (struct ospf6_interface *oi, int state, int old_state),
 188                 (oi, state, old_state))
 189
 190 #endif /* OSPF6_INTERFACE_H */