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