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/*
* OSPF LSDB support.
* Copyright (C) 1999, 2000 Alex Zinin, Kunihiro Ishiguro, Toshiaki Takada
*
* 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_LSDB_H
#define _ZEBRA_OSPF_LSDB_H
/* OSPF LSDB structure. */
struct ospf_lsdb
{
struct
{
unsigned long count;
unsigned long count_self;
unsigned int checksum;
struct route_table *db;
} type[OSPF_MAX_LSA];
unsigned long total;
#define MONITOR_LSDB_CHANGE 1 /* XXX */
#ifdef MONITOR_LSDB_CHANGE
/* Hooks for callback functions to catch every add/del event. */
int (* new_lsa_hook)(struct ospf_lsa *);
int (* del_lsa_hook)(struct ospf_lsa *);
#endif /* MONITOR_LSDB_CHANGE */
};
/* Macros. */
#define LSDB_LOOP(T,N,L) \
if ((T) != NULL) \
for ((N) = route_top ((T)); ((N)); ((N)) = route_next ((N))) \
if (((L) = (N)->info))
#define ROUTER_LSDB(A) ((A)->lsdb->type[OSPF_ROUTER_LSA].db)
#define NETWORK_LSDB(A) ((A)->lsdb->type[OSPF_NETWORK_LSA].db)
#define SUMMARY_LSDB(A) ((A)->lsdb->type[OSPF_SUMMARY_LSA].db)
#define ASBR_SUMMARY_LSDB(A) ((A)->lsdb->type[OSPF_ASBR_SUMMARY_LSA].db)
#define EXTERNAL_LSDB(O) ((O)->lsdb->type[OSPF_AS_EXTERNAL_LSA].db)
#define NSSA_LSDB(A) ((A)->lsdb->type[OSPF_AS_NSSA_LSA].db)
#define OPAQUE_LINK_LSDB(A) ((A)->lsdb->type[OSPF_OPAQUE_LINK_LSA].db)
#define OPAQUE_AREA_LSDB(A) ((A)->lsdb->type[OSPF_OPAQUE_AREA_LSA].db)
#define OPAQUE_AS_LSDB(O) ((O)->lsdb->type[OSPF_OPAQUE_AS_LSA].db)
#define AREA_LSDB(A,T) ((A)->lsdb->type[(T)].db)
#define AS_LSDB(O,T) ((O)->lsdb->type[(T)].db)
/* OSPF LSDB related functions. */
extern struct ospf_lsdb *ospf_lsdb_new (void);
extern void ospf_lsdb_init (struct ospf_lsdb *);
extern void ospf_lsdb_free (struct ospf_lsdb *);
extern void ospf_lsdb_cleanup (struct ospf_lsdb *);
extern void ls_prefix_set (struct prefix_ls *lp, struct ospf_lsa *lsa);
extern void ospf_lsdb_add (struct ospf_lsdb *, struct ospf_lsa *);
extern void ospf_lsdb_delete (struct ospf_lsdb *, struct ospf_lsa *);
extern void ospf_lsdb_delete_all (struct ospf_lsdb *);
/* Set all stats to -1 (LSA_SPF_NOT_EXPLORED). */
extern void ospf_lsdb_clean_stat (struct ospf_lsdb *lsdb);
extern struct ospf_lsa *ospf_lsdb_lookup (struct ospf_lsdb *, struct ospf_lsa *);
extern struct ospf_lsa *ospf_lsdb_lookup_by_id (struct ospf_lsdb *, u_char,
struct in_addr, struct in_addr);
extern struct ospf_lsa *ospf_lsdb_lookup_by_id_next (struct ospf_lsdb *, u_char,
struct in_addr, struct in_addr,
int);
extern unsigned long ospf_lsdb_count_all (struct ospf_lsdb *);
extern unsigned long ospf_lsdb_count (struct ospf_lsdb *, int);
extern unsigned long ospf_lsdb_count_self (struct ospf_lsdb *, int);
extern unsigned int ospf_lsdb_checksum (struct ospf_lsdb *, int);
extern unsigned long ospf_lsdb_isempty (struct ospf_lsdb *);
#endif /* _ZEBRA_OSPF_LSDB_H */
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