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 along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef OSPF6_ABR_H
  22 #define OSPF6_ABR_H
  23
  24 /* for struct ospf6_route */
  25 #include "ospf6_route.h"
  26 /* for struct ospf6_prefix */
  27 #include "ospf6_proto.h"
  28
  29 /* Debug option */
  30 extern unsigned char conf_debug_ospf6_abr;
  31 #define OSPF6_DEBUG_ABR_ON() \
  32   (conf_debug_ospf6_abr = 1)
  33 #define OSPF6_DEBUG_ABR_OFF() \
  34   (conf_debug_ospf6_abr = 0)
  35 #define IS_OSPF6_DEBUG_ABR \
  36   (conf_debug_ospf6_abr)
  37
  38 /* Inter-Area-Prefix-LSA */
  39 #define OSPF6_INTER_PREFIX_LSA_MIN_SIZE        4U /* w/o IPv6 prefix */
  40 struct ospf6_inter_prefix_lsa
  41 {
  42   u_int32_t metric;
  43   struct ospf6_prefix prefix;
  44 };
  45
  46 /* Inter-Area-Router-LSA */
  47 #define OSPF6_INTER_ROUTER_LSA_FIX_SIZE       12U
  48 struct ospf6_inter_router_lsa
  49 {
  50   u_char mbz;
  51   u_char options[3];
  52   u_int32_t metric;
  53   u_int32_t router_id;
  54 };
  55
  56 #define OSPF6_ABR_SUMMARY_METRIC(E) (ntohl ((E)->metric & htonl (0x00ffffff)))
  57 #define OSPF6_ABR_SUMMARY_METRIC_SET(E,C) \
  58   { (E)->metric &= htonl (0x00000000); \
  59     (E)->metric |= htonl (0x00ffffff) & htonl (C); }
  60
  61 #define OSPF6_ABR_RANGE_CLEAR_COST(range) (range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC)
  62
  63 extern int ospf6_is_router_abr (struct ospf6 *o);
  64
  65 extern void ospf6_abr_enable_area (struct ospf6_area *oa);
  66 extern void ospf6_abr_disable_area (struct ospf6_area *oa);
  67
  68 extern int ospf6_abr_originate_summary_to_area (struct ospf6_route *route,
  69                                                 struct ospf6_area *area);
  70 extern void ospf6_abr_originate_summary (struct ospf6_route *route);
  71 extern void ospf6_abr_examin_summary (struct ospf6_lsa *lsa, struct ospf6_area *oa);
  72 extern void ospf6_abr_defaults_to_stub (struct ospf6 *);
  73 extern void ospf6_abr_examin_brouter (u_int32_t router_id);
  74 extern void ospf6_abr_reimport (struct ospf6_area *oa);
  75 extern void ospf6_abr_range_reset_cost (struct ospf6 *ospf6);
  76 extern void ospf6_abr_prefix_resummarize (struct ospf6 *ospf6);
  77
  78 extern int config_write_ospf6_debug_abr (struct vty *vty);
  79 extern void install_element_ospf6_debug_abr (void);
  80 extern int ospf6_abr_config_write (struct vty *vty);
  81
  82 extern void ospf6_abr_init (void);
  83
  84 #endif /*OSPF6_ABR_H*/