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
32struct 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
57
58/* Function Prototypes */
59struct ospf6_prefix *
60  ospf6_prefix_make (u_int8_t, u_int16_t, struct prefix_ipv6 *);
61void ospf6_prefix_free (struct ospf6_prefix *);
62void ospf6_prefix_in6_addr (struct ospf6_prefix *, struct in6_addr *);
63void ospf6_prefix_copy (struct ospf6_prefix *, struct ospf6_prefix *,
64                        size_t);
65
66void ospf6_prefix_apply_mask (struct ospf6_prefix *);
67int ospf6_prefix_issame (struct ospf6_prefix *, struct ospf6_prefix *);
68
69char *ospf6_prefix_options_str (u_int8_t, char *, size_t);
70char *ospf6_prefix_string (struct ospf6_prefix *, char *, size_t);
71
72struct ospf6_prefix *
73ospf6_prefix_lookup (list l, struct ospf6_prefix *prefix);
74void ospf6_prefix_add (list, struct ospf6_prefix *);
75
76struct ospf6_prefix *
77ospf6_prefix_create (u_int8_t, u_int16_t, struct prefix_ipv6 *);
78void ospf6_prefix_delete (struct ospf6_prefix *);
79
80void ospf6_prefix_init ();
81
82#endif /* OSPF6_PREFIX_H */
83
84