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         int32_t metric;
  27         int32_t metric_type;
  28 };
  29
  30 /* Redistributed external information. */
  31 struct external_info {
  32         /* Type of source protocol. */
  33         uint8_t type;
  34
  35         unsigned short instance;
  36
  37         /* Prefix. */
  38         struct prefix_ipv4 p;
  39
  40         /* Interface index. */
  41         ifindex_t ifindex;
  42
  43         /* Nexthop address. */
  44         struct in_addr nexthop;
  45
  46         /* Additional Route tag. */
  47         route_tag_t tag;
  48
  49         struct route_map_set_values route_map_set;
  50 #define ROUTEMAP_METRIC(E)      (E)->route_map_set.metric
  51 #define ROUTEMAP_METRIC_TYPE(E) (E)->route_map_set.metric_type
  52 };
  53
  54 #define OSPF_ASBR_CHECK_DELAY 30
  55
  56 extern void ospf_external_route_remove(struct ospf *, struct prefix_ipv4 *);
  57 extern struct external_info *ospf_external_info_new(uint8_t, unsigned short);
  58 extern void ospf_reset_route_map_set_values(struct route_map_set_values *);
  59 extern int ospf_route_map_set_compare(struct route_map_set_values *,
  60                                       struct route_map_set_values *);
  61 extern struct external_info *ospf_external_info_add(struct ospf *, uint8_t,
  62                                                     unsigned short,
  63                                                     struct prefix_ipv4,
  64                                                     ifindex_t, struct in_addr,
  65                                                     route_tag_t);
  66 extern void ospf_external_info_delete(struct ospf *, uint8_t, unsigned short,
  67                                       struct prefix_ipv4);
  68 extern struct external_info *ospf_external_info_lookup(struct ospf *, uint8_t,
  69                                                        unsigned short,
  70                                                        struct prefix_ipv4 *);
  71 extern void ospf_asbr_status_update(struct ospf *, uint8_t);
  72
  73 extern void ospf_redistribute_withdraw(struct ospf *, uint8_t, unsigned short);
  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 */