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0.99.22

    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 */