ospfd/ospf_asbr.h

   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 along
  18  * with this program; see the file COPYING; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef _ZEBRA_OSPF_ASBR_H
  23 #define _ZEBRA_OSPF_ASBR_H
  24
  25 struct route_map_set_values
  26 {
  27   int32_t metric;
  28   int32_t metric_type;
  29 };
  30
  31 /* Redistributed external information. */
  32 struct external_info
  33 {
  34   /* Type of source protocol. */
  35   u_char type;
  36
  37   u_short instance;
  38
  39   /* Prefix. */
  40   struct prefix_ipv4 p;
  41
  42   /* Interface index. */
  43   ifindex_t ifindex;
  44
  45   /* Nexthop address. */
  46   struct in_addr nexthop;
  47
  48   /* Additional Route tag. */
  49   route_tag_t tag;
  50
  51   struct route_map_set_values route_map_set;
  52 #define ROUTEMAP_METRIC(E)      (E)->route_map_set.metric
  53 #define ROUTEMAP_METRIC_TYPE(E) (E)->route_map_set.metric_type
  54 };
  55
  56 #define OSPF_ASBR_CHECK_DELAY 30
  57
  58 extern void ospf_external_route_remove (struct ospf *, struct prefix_ipv4 *);
  59 extern struct external_info *ospf_external_info_new (u_char, u_short);
  60 extern void ospf_reset_route_map_set_values (struct route_map_set_values *);
  61 extern int ospf_route_map_set_compare (struct route_map_set_values *,
  62                                 struct route_map_set_values *);
  63 extern struct external_info *ospf_external_info_add (u_char, u_short,
  64                                               struct prefix_ipv4,
  65                                               ifindex_t,
  66                                               struct in_addr,
  67                                               route_tag_t);
  68 extern void ospf_external_info_delete (u_char, u_short, struct prefix_ipv4);
  69 extern struct external_info *ospf_external_info_lookup (u_char, u_short,
  70                                                  struct prefix_ipv4 *);
  71 extern struct ospf_route *ospf_external_route_lookup (struct ospf *,
  72                                                struct prefix_ipv4 *);
  73 extern void ospf_asbr_status_update (struct ospf *, u_char);
  74
  75 extern void ospf_redistribute_withdraw (struct ospf *, u_char, u_short);
  76 extern void ospf_asbr_check (void);
  77 extern void ospf_schedule_asbr_check (void);
  78 extern void ospf_asbr_route_install_lsa (struct ospf_lsa *);
  79 extern struct ospf_lsa *ospf_external_info_find_lsa (struct ospf *,
  80                                               struct prefix_ipv4 *p);
  81
  82 #endif /* _ZEBRA_OSPF_ASBR_H */