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 /* for struct ospf6_prefix */
  28 #include "ospf6_proto.h"
  29
  30 /* Debug option */
  31 extern unsigned char conf_debug_ospf6_abr;
  32 #define OSPF6_DEBUG_ABR_ON() \
  33   (conf_debug_ospf6_abr = 1)
  34 #define OSPF6_DEBUG_ABR_OFF() \
  35   (conf_debug_ospf6_abr = 0)
  36 #define IS_OSPF6_DEBUG_ABR \
  37   (conf_debug_ospf6_abr)
  38
  39 /* Inter-Area-Prefix-LSA */
  40 #define OSPF6_INTER_PREFIX_LSA_MIN_SIZE        4U /* w/o IPv6 prefix */
  41 struct ospf6_inter_prefix_lsa
  42 {
  43   u_int32_t metric;
  44   struct ospf6_prefix prefix;
  45 };
  46
  47 /* Inter-Area-Router-LSA */
  48 #define OSPF6_INTER_ROUTER_LSA_FIX_SIZE       12U
  49 struct ospf6_inter_router_lsa
  50 {
  51   u_char mbz;
  52   u_char options[3];
  53   u_int32_t metric;
  54   u_int32_t router_id;
  55 };
  56
  57 #define OSPF6_ABR_SUMMARY_METRIC(E) (ntohl ((E)->metric & htonl (0x00ffffff)))
  58 #define OSPF6_ABR_SUMMARY_METRIC_SET(E,C) \
  59   { (E)->metric &= htonl (0x00000000); \
  60     (E)->metric |= htonl (0x00ffffff) & htonl (C); }
  61
  62 #define OSPF6_ABR_RANGE_CLEAR_COST(range) (range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC)
  63
  64 extern int ospf6_is_router_abr (struct ospf6 *o);
  65
  66 extern void ospf6_abr_enable_area (struct ospf6_area *oa);
  67 extern void ospf6_abr_disable_area (struct ospf6_area *oa);
  68
  69 extern int ospf6_abr_originate_summary_to_area (struct ospf6_route *route,
  70                                                 struct ospf6_area *area);
  71 extern void ospf6_abr_originate_summary (struct ospf6_route *route);
  72 extern void ospf6_abr_examin_summary (struct ospf6_lsa *lsa, struct ospf6_area *oa);
  73 extern void ospf6_abr_defaults_to_stub (struct ospf6 *);
  74 extern void ospf6_abr_examin_brouter (u_int32_t router_id);
  75 extern void ospf6_abr_reimport (struct ospf6_area *oa);
  76 extern void ospf6_abr_range_reset_cost (struct ospf6 *ospf6);
  77 extern void ospf6_abr_prefix_resummarize (struct ospf6 *ospf6);
  78
  79 extern int config_write_ospf6_debug_abr (struct vty *vty);
  80 extern void install_element_ospf6_debug_abr (void);
  81 extern int ospf6_abr_config_write (struct vty *vty);
  82
  83 extern void ospf6_abr_init (void);
  84
  85 #endif /*OSPF6_ABR_H*/