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/*
* OSPF ABR functions.
* Copyright (C) 1999 Alex Zinin
*
* 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 _ZEBRA_OSPF_ABR_H
#define _ZEBRA_OSPF_ABR_H
#define OSPF_ABR_TASK_DELAY 7
#define OSPF_AREA_RANGE_ADVERTISE (1 << 0)
#define OSPF_AREA_RANGE_SUBSTITUTE (1 << 1)
/* Area range. */
struct ospf_area_range
{
/* Area range address. */
struct in_addr addr;
/* Area range masklen. */
u_char masklen;
/* Flags. */
u_char flags;
/* Number of more specific prefixes. */
int specifics;
/* Addr and masklen to substitute. */
struct in_addr subst_addr;
u_char subst_masklen;
/* Range cost. */
u_int32_t cost;
/* Configured range cost. */
u_int32_t cost_config;
#define OSPF_AREA_RANGE_COST_UNSPEC -1U
};
/* Prototypes. */
extern struct ospf_area_range *ospf_area_range_lookup (struct ospf_area *,
struct prefix_ipv4 *);
extern struct ospf_area_range *ospf_some_area_range_match (struct prefix_ipv4
*);
extern struct ospf_area_range *ospf_area_range_lookup_next (struct ospf_area
*,
struct in_addr *,
int);
extern int ospf_area_range_set (struct ospf *, struct in_addr,
struct prefix_ipv4 *, int);
extern int ospf_area_range_cost_set (struct ospf *, struct in_addr,
struct prefix_ipv4 *, u_int32_t);
extern int ospf_area_range_unset (struct ospf *, struct in_addr,
struct prefix_ipv4 *);
extern int ospf_area_range_substitute_set (struct ospf *, struct in_addr,
struct prefix_ipv4 *,
struct prefix_ipv4 *);
extern int ospf_area_range_substitute_unset (struct ospf *, struct in_addr,
struct prefix_ipv4 *);
extern struct ospf_area_range *ospf_area_range_match_any (struct ospf *,
struct prefix_ipv4
*);
extern int ospf_area_range_active (struct ospf_area_range *);
extern int ospf_act_bb_connection (struct ospf *);
extern void ospf_check_abr_status (struct ospf *);
extern void ospf_abr_task (struct ospf *);
extern void ospf_schedule_abr_task (struct ospf *);
extern void ospf_abr_announce_network_to_area (struct prefix_ipv4 *,
u_int32_t,
struct ospf_area *);
#endif /* _ZEBRA_OSPF_ABR_H */
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