ospf6d/ospf6_prefix.h

   1 /*
   2  * Copyright (C) 1999 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_PREFIX_H
  23 #define OSPF6_PREFIX_H
  24
  25 #include "linklist.h"
  26
  27 #define OSPF6_PREFIX_OPTION_NU (1 << 0)  /* No Unicast */
  28 #define OSPF6_PREFIX_OPTION_LA (1 << 1)  /* Local Address */
  29 #define OSPF6_PREFIX_OPTION_MC (1 << 2)  /* MultiCast */
  30 #define OSPF6_PREFIX_OPTION_P  (1 << 3)  /* Propagate (NSSA) */
  31
  32 struct ospf6_prefix
  33 {
  34   u_int8_t prefix_length;
  35   u_int8_t prefix_options;
  36   union {
  37     u_int16_t _prefix_metric;
  38     u_int16_t _prefix_referenced_lstype;
  39   } u;
  40 #define prefix_metric u._prefix_metric
  41 #define prefix_refer_lstype u._prefix_referenced_lstype
  42   /* followed by one address_prefix */
  43 };
  44
  45 /* size_t OSPF6_PREFIX_SPACE (int prefixlength); */
  46 #define OSPF6_PREFIX_SPACE(x) ((((x) + 31) / 32) * 4)
  47
  48 /* size_t OSPF6_PREFIX_SIZE (struct ospf6_prefix *); */
  49 #define OSPF6_PREFIX_SIZE(x) \
  50    (OSPF6_PREFIX_SPACE ((x)->prefix_length) + sizeof (struct ospf6_prefix))
  51
  52 /* struct ospf6_prefix *OSPF6_NEXT_PREFIX (struct ospf6_prefix *); */
  53 #define OSPF6_NEXT_PREFIX(x) \
  54    ((struct ospf6_prefix *)((char *)(x) + OSPF6_PREFIX_SIZE (x)))
  55
  56 \f
  57
  58 /* Function Prototypes */
  59 struct ospf6_prefix *
  60   ospf6_prefix_make (u_int8_t, u_int16_t, struct prefix_ipv6 *);
  61 void ospf6_prefix_free (struct ospf6_prefix *);
  62 void ospf6_prefix_in6_addr (struct ospf6_prefix *, struct in6_addr *);
  63 void ospf6_prefix_copy (struct ospf6_prefix *, struct ospf6_prefix *,
  64                         size_t);
  65
  66 void ospf6_prefix_apply_mask (struct ospf6_prefix *);
  67 int ospf6_prefix_issame (struct ospf6_prefix *, struct ospf6_prefix *);
  68
  69 char *ospf6_prefix_options_str (u_int8_t, char *, size_t);
  70 char *ospf6_prefix_string (struct ospf6_prefix *, char *, size_t);
  71
  72 struct ospf6_prefix *
  73 ospf6_prefix_lookup (list l, struct ospf6_prefix *prefix);
  74 void ospf6_prefix_add (list, struct ospf6_prefix *);
  75
  76 struct ospf6_prefix *
  77 ospf6_prefix_create (u_int8_t, u_int16_t, struct prefix_ipv6 *);
  78 void ospf6_prefix_delete (struct ospf6_prefix *);
  79
  80 void ospf6_prefix_init ();
  81
  82 #endif /* OSPF6_PREFIX_H */
  83