ospfd/ospf_lsdb.h

   1 /*
   2  * OSPF LSDB support.
   3  * Copyright (C) 1999, 2000 Alex Zinin, Kunihiro Ishiguro, Toshiaki Takada
   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_LSDB_H
  24 #define _ZEBRA_OSPF_LSDB_H
  25
  26 /* OSPF LSDB structure. */
  27 struct ospf_lsdb
  28 {
  29   struct
  30   {
  31     unsigned long count;
  32     unsigned long count_self;
  33     unsigned int checksum;
  34     struct route_table *db;
  35   } type[OSPF_MAX_LSA];
  36   unsigned long total;
  37 #define MONITOR_LSDB_CHANGE 1 /* XXX */
  38 #ifdef MONITOR_LSDB_CHANGE
  39   /* Hooks for callback functions to catch every add/del event. */
  40   int (* new_lsa_hook)(struct ospf_lsa *);
  41   int (* del_lsa_hook)(struct ospf_lsa *);
  42 #endif /* MONITOR_LSDB_CHANGE */
  43 };
  44
  45 /* Macros. */
  46 #define LSDB_LOOP(T,N,L)                                                      \
  47   if ((T) != NULL)                                                            \
  48   for ((N) = route_top ((T)); ((N)); ((N)) = route_next ((N)))                \
  49     if (((L) = (N)->info))
  50
  51 #define ROUTER_LSDB(A)       ((A)->lsdb->type[OSPF_ROUTER_LSA].db)
  52 #define NETWORK_LSDB(A)      ((A)->lsdb->type[OSPF_NETWORK_LSA].db)
  53 #define SUMMARY_LSDB(A)      ((A)->lsdb->type[OSPF_SUMMARY_LSA].db)
  54 #define ASBR_SUMMARY_LSDB(A) ((A)->lsdb->type[OSPF_ASBR_SUMMARY_LSA].db)
  55 #define EXTERNAL_LSDB(O)     ((O)->lsdb->type[OSPF_AS_EXTERNAL_LSA].db)
  56 #define NSSA_LSDB(A)         ((A)->lsdb->type[OSPF_AS_NSSA_LSA].db)
  57 #define OPAQUE_LINK_LSDB(A)  ((A)->lsdb->type[OSPF_OPAQUE_LINK_LSA].db)
  58 #define OPAQUE_AREA_LSDB(A)  ((A)->lsdb->type[OSPF_OPAQUE_AREA_LSA].db)
  59 #define OPAQUE_AS_LSDB(O)    ((O)->lsdb->type[OSPF_OPAQUE_AS_LSA].db)
  60
  61 #define AREA_LSDB(A,T)       ((A)->lsdb->type[(T)].db)
  62 #define AS_LSDB(O,T)         ((O)->lsdb->type[(T)].db)
  63
  64 /* OSPF LSDB related functions. */
  65 extern struct ospf_lsdb *ospf_lsdb_new (void);
  66 extern void ospf_lsdb_init (struct ospf_lsdb *);
  67 extern void ospf_lsdb_free (struct ospf_lsdb *);
  68 extern void ospf_lsdb_cleanup (struct ospf_lsdb *);
  69 extern void ls_prefix_set (struct prefix_ls *lp, struct ospf_lsa *lsa);
  70 extern void ospf_lsdb_add (struct ospf_lsdb *, struct ospf_lsa *);
  71 extern void ospf_lsdb_delete (struct ospf_lsdb *, struct ospf_lsa *);
  72 extern void ospf_lsdb_delete_all (struct ospf_lsdb *);
  73 /* Set all stats to -1 (LSA_SPF_NOT_EXPLORED). */
  74 extern void ospf_lsdb_clean_stat (struct ospf_lsdb *lsdb);
  75 extern struct ospf_lsa *ospf_lsdb_lookup (struct ospf_lsdb *, struct ospf_lsa *);
  76 extern struct ospf_lsa *ospf_lsdb_lookup_by_id (struct ospf_lsdb *, u_char,
  77                                         struct in_addr, struct in_addr);
  78 extern struct ospf_lsa *ospf_lsdb_lookup_by_id_next (struct ospf_lsdb *, u_char,
  79                                              struct in_addr, struct in_addr,
  80                                              int);
  81 extern unsigned long ospf_lsdb_count_all (struct ospf_lsdb *);
  82 extern unsigned long ospf_lsdb_count (struct ospf_lsdb *, int);
  83 extern unsigned long ospf_lsdb_count_self (struct ospf_lsdb *, int);
  84 extern unsigned int ospf_lsdb_checksum (struct ospf_lsdb *, int);
  85 extern unsigned long ospf_lsdb_isempty (struct ospf_lsdb *);
  86
  87 #endif /* _ZEBRA_OSPF_LSDB_H */