[mirror_frr.git] / ospfd / ospf_abr.h

/*
 * 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	-1
};

/* Prototypes. */
struct ospf_area_range *ospf_area_range_lookup (struct ospf_area *,
						struct prefix_ipv4 *);
struct ospf_area_range *ospf_some_area_range_match (struct prefix_ipv4 *);
struct ospf_area_range *ospf_area_range_lookup_next (struct ospf_area *,
						     struct in_addr *, int);
int ospf_area_range_set (struct ospf *, struct in_addr, struct prefix_ipv4 *,
			 int);
int ospf_area_range_cost_set (struct ospf *, struct in_addr,
			      struct prefix_ipv4 *, u_int32_t);
int ospf_area_range_unset (struct ospf *, struct in_addr,
			   struct prefix_ipv4 *);
int ospf_area_range_substitute_set (struct ospf *, struct in_addr,
				    struct prefix_ipv4 *,
				    struct prefix_ipv4 *);
int ospf_area_range_substitute_unset (struct ospf *, struct in_addr,
				      struct prefix_ipv4 *);
struct ospf_area_range *ospf_area_range_match_any (struct ospf *,
						   struct prefix_ipv4 *);
int ospf_area_range_active (struct ospf_area_range *);
int ospf_act_bb_connection ();

void ospf_check_abr_status ();
void ospf_abr_task ();
void ospf_schedule_abr_task ();

#endif /* _ZEBRA_OSPF_ABR_H */
Commit	Line	Data
718e3744	1	/*
	2	* OSPF ABR functions.
	3	* Copyright (C) 1999 Alex Zinin
	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 Free
	19	* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	20	* 02111-1307, USA.
	21	*/
	22
	23	#ifndef _ZEBRA_OSPF_ABR_H
	24	#define _ZEBRA_OSPF_ABR_H
	25
	26	#define OSPF_ABR_TASK_DELAY 7
	27
	28	#define OSPF_AREA_RANGE_ADVERTISE (1 << 0)
	29	#define OSPF_AREA_RANGE_SUBSTITUTE (1 << 1)
	30
	31	/* Area range. */
	32	struct ospf_area_range
	33	{
	34	/* Area range address. */
	35	struct in_addr addr;
	36
	37	/* Area range masklen. */
	38	u_char masklen;
	39
	40	/* Flags. */
	41	u_char flags;
	42
	43	/* Number of more specific prefixes. */
	44	int specifics;
	45
	46	/* Addr and masklen to substitute. */
	47	struct in_addr subst_addr;
	48	u_char subst_masklen;
	49
	50	/* Range cost. */
	51	u_int32_t cost;
	52
	53	/* Configured range cost. */
	54	u_int32_t cost_config;
	55	#define OSPF_AREA_RANGE_COST_UNSPEC -1
	56	};
	57
	58	/* Prototypes. */
	59	struct ospf_area_range ospf_area_range_lookup (struct ospf_area ,
	60	struct prefix_ipv4 *);
	61	struct ospf_area_range ospf_some_area_range_match (struct prefix_ipv4 );
	62	struct ospf_area_range ospf_area_range_lookup_next (struct ospf_area ,
	63	struct in_addr *, int);
	64	int ospf_area_range_set (struct ospf , struct in_addr, struct prefix_ipv4 ,
65	int);
66	int ospf_area_range_cost_set (struct ospf *, struct in_addr,
67	struct prefix_ipv4 *, u_int32_t);
68	int ospf_area_range_unset (struct ospf *, struct in_addr,
69	struct prefix_ipv4 *);
70	int ospf_area_range_substitute_set (struct ospf *, struct in_addr,
71	struct prefix_ipv4 *,
72	struct prefix_ipv4 *);
73	int ospf_area_range_substitute_unset (struct ospf *, struct in_addr,
74	struct prefix_ipv4 *);
75	struct ospf_area_range ospf_area_range_match_any (struct ospf ,
76	struct prefix_ipv4 *);
77	int ospf_area_range_active (struct ospf_area_range *);
78	int ospf_act_bb_connection ();
79
80	void ospf_check_abr_status ();
81	void ospf_abr_task ();
82	void ospf_schedule_abr_task ();
83
84	#endif /* _ZEBRA_OSPF_ABR_H */