ospf6d/ospf6_abr.h

   1 /*
   2  * Copyright (C) 2004 Yasuhiro Ohara
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GNU Zebra; see the file COPYING.  If not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef OSPF6_ABR_H
  23 #define OSPF6_ABR_H
  24
  25 /* for struct ospf6_route */
  26 #include "ospf6_route.h"
  27
  28 /* Debug option */
  29 extern unsigned char conf_debug_ospf6_abr;
  30 #define OSPF6_DEBUG_ABR_ON() \
  31   (conf_debug_ospf6_abr = 1)
  32 #define OSPF6_DEBUG_ABR_OFF() \
  33   (conf_debug_ospf6_abr = 0)
  34 #define IS_OSPF6_DEBUG_ABR \
  35   (conf_debug_ospf6_abr)
  36
  37 /* Inter-Area-Prefix-LSA */
  38 #define OSPF6_INTER_PREFIX_LSA_MIN_SIZE        4U /* w/o IPv6 prefix */
  39 struct ospf6_inter_prefix_lsa
  40 {
  41   u_int32_t metric;
  42   struct ospf6_prefix prefix;
  43 };
  44
  45 /* Inter-Area-Router-LSA */
  46 #define OSPF6_INTER_ROUTER_LSA_FIX_SIZE       12U
  47 struct ospf6_inter_router_lsa
  48 {
  49   u_char mbz;
  50   u_char options[3];
  51   u_int32_t metric;
  52   u_int32_t router_id;
  53 };
  54
  55 #define OSPF6_ABR_SUMMARY_METRIC(E) (ntohl ((E)->metric & htonl (0x00ffffff)))
  56 #define OSPF6_ABR_SUMMARY_METRIC_SET(E,C) \
  57   { (E)->metric &= htonl (0x00000000); \
  58     (E)->metric |= htonl (0x00ffffff) & htonl (C); }
  59
  60 #define OSPF6_ABR_RANGE_CLEAR_COST(range) (range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC)
  61
  62 extern int ospf6_is_router_abr (struct ospf6 *o);
  63
  64 extern void ospf6_abr_enable_area (struct ospf6_area *oa);
  65 extern void ospf6_abr_disable_area (struct ospf6_area *oa);
  66
  67 extern int ospf6_abr_originate_summary_to_area (struct ospf6_route *route,
  68                                                 struct ospf6_area *area);
  69 extern void ospf6_abr_originate_summary (struct ospf6_route *route);
  70 extern void ospf6_abr_examin_summary (struct ospf6_lsa *lsa, struct ospf6_area *oa);
  71 extern void ospf6_abr_defaults_to_stub (struct ospf6 *);
  72 extern void ospf6_abr_examin_brouter (u_int32_t router_id);
  73 extern void ospf6_abr_reimport (struct ospf6_area *oa);
  74 extern void ospf6_abr_range_reset_cost (struct ospf6 *ospf6);
  75 extern void ospf6_abr_prefix_resummarize (struct ospf6 *ospf6);
  76
  77 extern int config_write_ospf6_debug_abr (struct vty *vty);
  78 extern void install_element_ospf6_debug_abr (void);
  79 extern int ospf6_abr_config_write (struct vty *vty);
  80
  81 extern void ospf6_abr_init (void);
  82
  83 #endif /*OSPF6_ABR_H*/