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() (conf_debug_ospf6_abr = 1)
  32 #define OSPF6_DEBUG_ABR_OFF() (conf_debug_ospf6_abr = 0)
  33 #define IS_OSPF6_DEBUG_ABR (conf_debug_ospf6_abr)
  34
  35 /* Inter-Area-Prefix-LSA */
  36 #define OSPF6_INTER_PREFIX_LSA_MIN_SIZE        4U /* w/o IPv6 prefix */
  37 struct ospf6_inter_prefix_lsa {
  38         uint32_t metric;
  39         struct ospf6_prefix prefix;
  40 };
  41
  42 /* Inter-Area-Router-LSA */
  43 #define OSPF6_INTER_ROUTER_LSA_FIX_SIZE       12U
  44 struct ospf6_inter_router_lsa {
  45         uint8_t mbz;
  46         uint8_t options[3];
  47         uint32_t metric;
  48         uint32_t router_id;
  49 };
  50
  51 #define OSPF6_ABR_SUMMARY_METRIC(E) (ntohl ((E)->metric & htonl (0x00ffffff)))
  52 #define OSPF6_ABR_SUMMARY_METRIC_SET(E, C)                                     \
  53         {                                                                      \
  54                 (E)->metric &= htonl(0x00000000);                              \
  55                 (E)->metric |= htonl(0x00ffffff) & htonl(C);                   \
  56         }
  57
  58 #define OSPF6_ABR_RANGE_CLEAR_COST(range) (range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC)
  59
  60 extern int ospf6_is_router_abr(struct ospf6 *o);
  61
  62 extern void ospf6_abr_enable_area(struct ospf6_area *oa);
  63 extern void ospf6_abr_disable_area(struct ospf6_area *oa);
  64
  65 extern int ospf6_abr_originate_summary_to_area(struct ospf6_route *route,
  66                                                struct ospf6_area *area);
  67 extern void ospf6_abr_originate_summary(struct ospf6_route *route);
  68 extern void ospf6_abr_examin_summary(struct ospf6_lsa *lsa,
  69                                      struct ospf6_area *oa);
  70 extern void ospf6_abr_defaults_to_stub(struct ospf6 *);
  71 extern void ospf6_abr_examin_brouter(uint32_t router_id);
  72 extern void ospf6_abr_reimport(struct ospf6_area *oa);
  73 extern void ospf6_abr_range_reset_cost(struct ospf6 *ospf6);
  74 extern void ospf6_abr_prefix_resummarize(struct ospf6 *ospf6);
  75
  76 extern int config_write_ospf6_debug_abr(struct vty *vty);
  77 extern void install_element_ospf6_debug_abr(void);
  78 extern int ospf6_abr_config_write(struct vty *vty);
  79 extern void ospf6_abr_old_route_remove(struct ospf6_lsa *lsa,
  80                                        struct ospf6_route *old,
  81                                        struct ospf6_route_table *table);
  82 extern void ospf6_abr_old_path_update(struct ospf6_route *old_route,
  83                                       struct ospf6_route *route,
  84                                       struct ospf6_route_table *table);
  85 extern void ospf6_abr_init(void);
  86
  87 #endif /*OSPF6_ABR_H*/