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Annotation of embedaddon/quagga/ospfd/ospf_lsdb.h, revision 1.1

1.1     ! misho       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 ospf_lsdb_add (struct ospf_lsdb *, struct ospf_lsa *);
        !            70: extern void ospf_lsdb_delete (struct ospf_lsdb *, struct ospf_lsa *);
        !            71: extern void ospf_lsdb_delete_all (struct ospf_lsdb *);
        !            72: /* Set all stats to -1 (LSA_SPF_NOT_EXPLORED). */
        !            73: extern void ospf_lsdb_clean_stat (struct ospf_lsdb *lsdb);
        !            74: extern struct ospf_lsa *ospf_lsdb_lookup (struct ospf_lsdb *, struct ospf_lsa *);
        !            75: extern struct ospf_lsa *ospf_lsdb_lookup_by_id (struct ospf_lsdb *, u_char,
        !            76:                                        struct in_addr, struct in_addr);
        !            77: extern struct ospf_lsa *ospf_lsdb_lookup_by_id_next (struct ospf_lsdb *, u_char,
        !            78:                                             struct in_addr, struct in_addr,
        !            79:                                             int);
        !            80: extern unsigned long ospf_lsdb_count_all (struct ospf_lsdb *);
        !            81: extern unsigned long ospf_lsdb_count (struct ospf_lsdb *, int);
        !            82: extern unsigned long ospf_lsdb_count_self (struct ospf_lsdb *, int);
        !            83: extern unsigned int ospf_lsdb_checksum (struct ospf_lsdb *, int);
        !            84: extern unsigned long ospf_lsdb_isempty (struct ospf_lsdb *);
        !            85: 
        !            86: #endif /* _ZEBRA_OSPF_LSDB_H */