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    1: /*
    2:  * OSPF AS Boundary Router functions.
    3:  * Copyright (C) 1999, 2000 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_ASBR_H
   24: #define _ZEBRA_OSPF_ASBR_H
   25: 
   26: struct route_map_set_values
   27: {
   28:   int32_t metric;
   29:   int32_t metric_type;
   30: };
   31: 
   32: /* Redistributed external information. */
   33: struct external_info
   34: {
   35:   /* Type of source protocol. */
   36:   u_char type;
   37: 
   38:   /* Prefix. */
   39:   struct prefix_ipv4 p;
   40: 
   41:   /* Interface index. */
   42:   unsigned int ifindex;
   43: 
   44:   /* Nexthop address. */
   45:   struct in_addr nexthop;
   46: 
   47:   /* Additional Route tag. */
   48:   u_int32_t tag;
   49: 
   50:   struct route_map_set_values route_map_set;
   51: #define ROUTEMAP_METRIC(E)      (E)->route_map_set.metric
   52: #define ROUTEMAP_METRIC_TYPE(E) (E)->route_map_set.metric_type
   53: };
   54: 
   55: #define OSPF_ASBR_CHECK_DELAY 30
   56: 
   57: extern void ospf_external_route_remove (struct ospf *, struct prefix_ipv4 *);
   58: extern struct external_info *ospf_external_info_new (u_char);
   59: extern void ospf_reset_route_map_set_values (struct route_map_set_values *);
   60: extern int ospf_route_map_set_compare (struct route_map_set_values *,
   61: 				struct route_map_set_values *);
   62: extern struct external_info *ospf_external_info_add (u_char, 
   63:                                               struct prefix_ipv4,
   64: 					      unsigned int, 
   65: 					      struct in_addr);
   66: extern void ospf_external_info_delete (u_char, struct prefix_ipv4);
   67: extern struct external_info *ospf_external_info_lookup (u_char, 
   68:                                                  struct prefix_ipv4 *);
   69: extern struct ospf_route *ospf_external_route_lookup (struct ospf *, 
   70:                                                struct prefix_ipv4 *);
   71: extern void ospf_asbr_status_update (struct ospf *, u_char);
   72: 
   73: extern void ospf_redistribute_withdraw (struct ospf *, u_char);
   74: extern void ospf_asbr_check (void);
   75: extern void ospf_schedule_asbr_check (void);
   76: extern void ospf_asbr_route_install_lsa (struct ospf_lsa *);
   77: extern struct ospf_lsa *ospf_external_info_find_lsa (struct ospf *,
   78: 					      struct prefix_ipv4 *p);
   79: 
   80: #endif /* _ZEBRA_OSPF_ASBR_H */