ospf6d/ospf6_asbr.h

   1 /*
   2  * Copyright (C) 2001 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_ASBR_H
  22 #define OSPF6_ASBR_H
  23
  24 /* for struct ospf6_prefix */
  25 #include "ospf6_proto.h"
  26 /* for struct ospf6_lsa */
  27 #include "ospf6_lsa.h"
  28 /* for struct ospf6_route */
  29 #include "ospf6_route.h"
  30
  31 /* Debug option */
  32 extern unsigned char conf_debug_ospf6_asbr;
  33 #define OSPF6_DEBUG_ASBR_ON() \
  34   (conf_debug_ospf6_asbr = 1)
  35 #define OSPF6_DEBUG_ASBR_OFF() \
  36   (conf_debug_ospf6_asbr = 0)
  37 #define IS_OSPF6_DEBUG_ASBR \
  38   (conf_debug_ospf6_asbr)
  39
  40 struct ospf6_external_info
  41 {
  42   /* External route type */
  43   int type;
  44
  45   /* Originating Link State ID */
  46   u_int32_t id;
  47
  48   struct in6_addr forwarding;
  49
  50   route_tag_t tag;
  51
  52   ifindex_t ifindex;
  53 };
  54
  55 /* AS-External-LSA */
  56 #define OSPF6_AS_EXTERNAL_LSA_MIN_SIZE         4U /* w/o IPv6 prefix */
  57 struct ospf6_as_external_lsa
  58 {
  59   u_int32_t bits_metric;
  60
  61   struct ospf6_prefix prefix;
  62   /* followed by none or one forwarding address */
  63   /* followed by none or one external route tag */
  64   /* followed by none or one referenced LS-ID */
  65 };
  66
  67 #define OSPF6_ASBR_BIT_T  ntohl (0x01000000)
  68 #define OSPF6_ASBR_BIT_F  ntohl (0x02000000)
  69 #define OSPF6_ASBR_BIT_E  ntohl (0x04000000)
  70
  71 #define OSPF6_ASBR_METRIC(E) (ntohl ((E)->bits_metric & htonl (0x00ffffff)))
  72 #define OSPF6_ASBR_METRIC_SET(E,C) \
  73   { (E)->bits_metric &= htonl (0xff000000); \
  74     (E)->bits_metric |= htonl (0x00ffffff) & htonl (C); }
  75
  76 extern void ospf6_asbr_lsa_add (struct ospf6_lsa *lsa);
  77 extern void ospf6_asbr_lsa_remove (struct ospf6_lsa *lsa);
  78 extern void ospf6_asbr_lsentry_add (struct ospf6_route *asbr_entry);
  79 extern void ospf6_asbr_lsentry_remove (struct ospf6_route *asbr_entry);
  80
  81 extern int ospf6_asbr_is_asbr (struct ospf6 *o);
  82 extern void ospf6_asbr_redistribute_add (int type, ifindex_t ifindex,
  83                                          struct prefix *prefix,
  84                                          u_int nexthop_num,
  85                                          struct in6_addr *nexthop,
  86                                          route_tag_t tag);
  87 extern void ospf6_asbr_redistribute_remove (int type, ifindex_t ifindex,
  88                                             struct prefix *prefix);
  89
  90 extern int ospf6_redistribute_config_write (struct vty *vty);
  91
  92 extern void ospf6_asbr_init (void);
  93 extern void ospf6_asbr_redistribute_reset (void);
  94 extern void ospf6_asbr_terminate (void);
  95 extern void ospf6_asbr_send_externals_to_area (struct ospf6_area *);
  96
  97 extern int config_write_ospf6_debug_asbr (struct vty *vty);
  98 extern void install_element_ospf6_debug_asbr (void);
  99
 100 #endif /* OSPF6_ASBR_H */