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/*
* Copyright (C) 2003 Yasuhiro Ohara
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef OSPF_AREA_H
#define OSPF_AREA_H
#include "ospf6_top.h"
struct ospf6_area
{
/* Reference to Top data structure */
struct ospf6 *ospf6;
/* Area-ID */
u_int32_t area_id;
/* Area-ID string */
char name[16];
/* flag */
u_char flag;
/* OSPF Option */
u_char options[3];
/* Summary routes to be originated (includes Configured Address Ranges) */
struct ospf6_route_table *range_table;
struct ospf6_route_table *summary_prefix;
struct ospf6_route_table *summary_router;
/* OSPF interface list */
struct list *if_list;
struct ospf6_lsdb *lsdb;
struct ospf6_lsdb *lsdb_self;
struct ospf6_route_table *spf_table;
struct ospf6_route_table *route_table;
struct thread *thread_spf_calculation;
struct thread *thread_route_calculation;
struct thread *thread_router_lsa;
struct thread *thread_intra_prefix_lsa;
u_int32_t router_lsa_size_limit;
};
#define OSPF6_AREA_ENABLE 0x01
#define OSPF6_AREA_ACTIVE 0x02
#define OSPF6_AREA_TRANSIT 0x04 /* TransitCapability */
#define OSPF6_AREA_STUB 0x08
#define BACKBONE_AREA_ID (htonl (0))
#define IS_AREA_BACKBONE(oa) ((oa)->area_id == BACKBONE_AREA_ID)
#define IS_AREA_ENABLED(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ENABLE))
#define IS_AREA_ACTIVE(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ACTIVE))
#define IS_AREA_TRANSIT(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_TRANSIT))
#define IS_AREA_STUB(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_STUB))
/* prototypes */
int ospf6_area_cmp (void *va, void *vb);
struct ospf6_area *ospf6_area_create (u_int32_t, struct ospf6 *);
void ospf6_area_delete (struct ospf6_area *);
struct ospf6_area *ospf6_area_lookup (u_int32_t, struct ospf6 *);
void ospf6_area_enable (struct ospf6_area *);
void ospf6_area_disable (struct ospf6_area *);
void ospf6_area_show (struct vty *, struct ospf6_area *);
void ospf6_area_config_write (struct vty *vty);
void ospf6_area_init ();
#endif /* OSPF_AREA_H */
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