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