1/*
2 * OSPF6 Area Data Structure
3 * Copyright (C) 1999 Yasuhiro Ohara
4 *
5 * This file is part of GNU Zebra.
6 *
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
10 * later version.
11 *
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Zebra; see the file COPYING.  If not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
21 */
22
23#ifndef OSPF_AREA_H
24#define OSPF_AREA_H
25
26/* This file defines area parameters and data structures. */
27
28#define OSPF6_AREA_RANGE_ADVERTISE     0
29#define OSPF6_AREA_RANGE_NOT_ADVERTISE 1
30
31#include "ospf6_spf.h"
32#include "ospf6_top.h"
33
34struct ospf6_area
35{
36  char            str[16];
37
38  struct ospf6   *ospf6;      /* back pointer */
39  u_int32_t       area_id;
40  u_char          options[3]; /* OSPF Option including ExternalCapability */
41
42  list            if_list; /* OSPF interface to this area */
43
44  struct ospf6_lsdb *lsdb;
45
46  struct thread  *spf_calc;
47  struct thread  *route_calc;
48  int             stat_spf_execed;
49  int             stat_route_execed;
50
51  struct route_table *table; /* new route table */
52
53  struct prefix_ipv6 area_range;
54  struct ospf6_spftree *spf_tree;
55
56  struct ospf6_route_table *route_table;
57  struct ospf6_route_table *table_topology;
58
59  void (*foreach_if)  (struct ospf6_area *, void *, int,
60                       void (*func) (void *, int, void *));
61  void (*foreach_nei) (struct ospf6_area *, void *, int,
62                       void (*func) (void *, int, void *));
63
64  struct thread *maxage_remover;
65};
66
67
68/* prototypes */
69
70int
71ospf6_area_count_neighbor_in_state (u_char state, struct ospf6_area *o6a);
72
73void
74ospf6_area_schedule_maxage_remover (void *arg, int val, void *obj);
75
76int ospf6_area_is_stub (struct ospf6_area *o6a);
77int ospf6_area_is_transit (struct ospf6_area *o6a);
78struct ospf6_area *ospf6_area_lookup (u_int32_t, struct ospf6 *);
79struct ospf6_area *ospf6_area_create (u_int32_t);
80void ospf6_area_delete (struct ospf6_area *);
81void ospf6_area_show (struct vty *, struct ospf6_area *);
82void
83ospf6_area_statistics_show (struct vty *vty, struct ospf6_area *o6a);
84
85void ospf6_area_init ();
86
87#endif /* OSPF_AREA_H */
88
89