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 along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef OSPF6_INTERFACE_H
  22 #define OSPF6_INTERFACE_H
  23
  24 #include "qobj.h"
  25 #include "hook.h"
  26 #include "if.h"
  27
  28 /* Debug option */
  29 extern unsigned char conf_debug_ospf6_interface;
  30 #define OSPF6_DEBUG_INTERFACE_ON() \
  31   (conf_debug_ospf6_interface = 1)
  32 #define OSPF6_DEBUG_INTERFACE_OFF() \
  33   (conf_debug_ospf6_interface = 0)
  34 #define IS_OSPF6_DEBUG_INTERFACE \
  35   (conf_debug_ospf6_interface)
  36
  37 /* Interface structure */
  38 struct ospf6_interface
  39 {
  40   /* IF info from zebra */
  41   struct interface *interface;
  42
  43   /* back pointer */
  44   struct ospf6_area *area;
  45
  46   /* list of ospf6 neighbor */
  47   struct list *neighbor_list;
  48
  49   /* linklocal address of this I/F */
  50   struct in6_addr *linklocal_addr;
  51
  52   /* Interface ID; use interface->ifindex */
  53
  54   /* ospf6 instance id */
  55   u_char instance_id;
  56
  57   /* I/F transmission delay */
  58   u_int32_t transdelay;
  59
  60   /* Network Type */
  61   u_char type;
  62
  63   /* Router Priority */
  64   u_char priority;
  65
  66   /* Time Interval */
  67   u_int16_t hello_interval;
  68   u_int16_t dead_interval;
  69   u_int32_t rxmt_interval;
  70
  71   u_int32_t state_change;
  72
  73   /* Cost */
  74   u_int32_t cost;
  75
  76   /* I/F MTU */
  77   u_int32_t ifmtu;
  78
  79   /* Interface State */
  80   u_char state;
  81
  82   /* Interface socket setting trial counter, resets on success */
  83   u_char sso_try_cnt;
  84
  85   /* OSPF6 Interface flag */
  86   char flag;
  87
  88   /* MTU mismatch check */
  89   u_char mtu_ignore;
  90
  91   /* Decision of DR Election */
  92   u_int32_t drouter;
  93   u_int32_t bdrouter;
  94   u_int32_t prev_drouter;
  95   u_int32_t prev_bdrouter;
  96
  97   /* Linklocal LSA Database: includes Link-LSA */
  98   struct ospf6_lsdb *lsdb;
  99   struct ospf6_lsdb *lsdb_self;
 100
 101   struct ospf6_lsdb *lsupdate_list;
 102   struct ospf6_lsdb *lsack_list;
 103
 104   /* Ongoing Tasks */
 105   struct thread *thread_send_hello;
 106   struct thread *thread_send_lsupdate;
 107   struct thread *thread_send_lsack;
 108
 109   struct thread *thread_network_lsa;
 110   struct thread *thread_link_lsa;
 111   struct thread *thread_intra_prefix_lsa;
 112
 113   struct ospf6_route_table *route_connected;
 114
 115   /* prefix-list name to filter connected prefix */
 116   char *plist_name;
 117
 118   /* BFD information */
 119   void *bfd_info;
 120
 121   QOBJ_FIELDS
 122 };
 123 DECLARE_QOBJ_TYPE(ospf6_interface)
 124
 125 /* interface state */
 126 #define OSPF6_INTERFACE_NONE             0
 127 #define OSPF6_INTERFACE_DOWN             1
 128 #define OSPF6_INTERFACE_LOOPBACK         2
 129 #define OSPF6_INTERFACE_WAITING          3
 130 #define OSPF6_INTERFACE_POINTTOPOINT     4
 131 #define OSPF6_INTERFACE_DROTHER          5
 132 #define OSPF6_INTERFACE_BDR              6
 133 #define OSPF6_INTERFACE_DR               7
 134 #define OSPF6_INTERFACE_MAX              8
 135
 136 extern const char *ospf6_interface_state_str[];
 137
 138 /* flags */
 139 #define OSPF6_INTERFACE_DISABLE      0x01
 140 #define OSPF6_INTERFACE_PASSIVE      0x02
 141 #define OSPF6_INTERFACE_NOAUTOCOST   0x04
 142
 143 /* default values */
 144 #define OSPF6_INTERFACE_HELLO_INTERVAL 10
 145 #define OSPF6_INTERFACE_DEAD_INTERVAL  40
 146 #define OSPF6_INTERFACE_RXMT_INTERVAL  5
 147 #define OSPF6_INTERFACE_COST           1
 148 #define OSPF6_INTERFACE_PRIORITY       1
 149 #define OSPF6_INTERFACE_TRANSDELAY     1
 150 #define OSPF6_INTERFACE_INSTANCE_ID    0
 151 #define OSPF6_INTERFACE_BANDWIDTH      10000   /* Mbps */
 152 #define OSPF6_REFERENCE_BANDWIDTH      100000  /* Mbps */
 153 #define OSPF6_INTERFACE_SSO_RETRY_INT  1
 154 #define OSPF6_INTERFACE_SSO_RETRY_MAX  5
 155
 156
 157 /* Function Prototypes */
 158
 159 extern struct ospf6_interface *ospf6_interface_lookup_by_ifindex (ifindex_t);
 160 extern struct ospf6_interface *ospf6_interface_create (struct interface *);
 161 extern void ospf6_interface_delete (struct ospf6_interface *);
 162
 163 extern void ospf6_interface_enable (struct ospf6_interface *);
 164 extern void ospf6_interface_disable (struct ospf6_interface *);
 165
 166 extern void ospf6_interface_if_add (struct interface *);
 167 extern void ospf6_interface_if_del (struct interface *);
 168 extern void ospf6_interface_state_update (struct interface *);
 169 extern void ospf6_interface_connected_route_update (struct interface *);
 170
 171 /* interface event */
 172 extern int interface_up (struct thread *);
 173 extern int interface_down (struct thread *);
 174 extern int wait_timer (struct thread *);
 175 extern int backup_seen (struct thread *);
 176 extern int neighbor_change (struct thread *);
 177
 178 extern void ospf6_interface_init (void);
 179
 180 extern void install_element_ospf6_clear_interface (void);
 181
 182 extern int config_write_ospf6_debug_interface (struct vty *vty);
 183 extern void install_element_ospf6_debug_interface (void);
 184
 185 DECLARE_HOOK(ospf6_interface_change,
 186                 (struct ospf6_interface *oi, int state, int old_state),
 187                 (oi, state, old_state))
 188
 189 #endif /* OSPF6_INTERFACE_H */