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a94434b6 1/* RIPng nexthop support
2 * Copyright (C) 6WIND Vincent Jardin <vincent.jardin@6wind.com>
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 *
896014f4
DL
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
a94434b6 19 */
20
21#ifndef _ZEBRA_RIPNG_RIPNG_NEXTHOP_H
22#define _ZEBRA_RIPNG_RIPNG_NEXTHOP_H
23
24#include <zebra.h>
25#include "linklist.h"
26#include "ripngd/ripng_route.h"
27#include "ripngd/ripngd.h"
28
d62a17ae 29extern struct list *ripng_rte_new(void);
6ac29a51
PJ
30extern void ripng_rte_free(struct list *ripng_rte_list);
31extern void ripng_rte_add(struct list *ripng_rte_list, struct prefix_ipv6 *p,
d62a17ae 32 struct ripng_info *rinfo,
33 struct ripng_aggregate *aggregate);
6ac29a51 34extern void ripng_rte_send(struct list *ripng_rte_list, struct interface *ifp,
d62a17ae 35 struct sockaddr_in6 *to);
a94434b6 36
37/***
38 * 1 if A > B
39 * 0 if A = B
40 * -1 if A < B
41 **/
d62a17ae 42static inline int addr6_cmp(struct in6_addr *A, struct in6_addr *B)
5c6ed111 43{
a94434b6 44#define a(i) A->s6_addr32[i]
45#define b(i) B->s6_addr32[i]
46
d62a17ae 47 if (a(3) > b(3))
48 return 1;
49 else if ((a(3) == b(3)) && (a(2) > b(2)))
50 return 1;
51 else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) > b(1)))
52 return 1;
53 else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1))
54 && (a(0) > b(0)))
55 return 1;
a94434b6 56
d62a17ae 57 if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1))
58 && (a(0) == b(0)))
59 return 0;
a94434b6 60
d62a17ae 61 return -1;
a94434b6 62}
63
64#endif /* _ZEBRA_RIPNG_RIPNG_NEXTHOP_H */