diff options
Diffstat (limited to 'ripngd/ripng_nexthop.h')
-rw-r--r-- | ripngd/ripng_nexthop.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/ripngd/ripng_nexthop.h b/ripngd/ripng_nexthop.h new file mode 100644 index 0000000..92ab7e0 --- /dev/null +++ b/ripngd/ripng_nexthop.h @@ -0,0 +1,64 @@ +/* RIPng nexthop support + * Copyright (C) 6WIND Vincent Jardin <vincent.jardin@6wind.com> + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _ZEBRA_RIPNG_RIPNG_NEXTHOP_H +#define _ZEBRA_RIPNG_RIPNG_NEXTHOP_H + +#include <zebra.h> +#include "linklist.h" +#include "ripngd/ripng_route.h" +#include "ripngd/ripngd.h" + +extern struct list *ripng_rte_new(void); +extern void ripng_rte_free(struct list *ripng_rte_list); +extern void ripng_rte_add(struct list *ripng_rte_list, struct prefix_ipv6 *p, + struct ripng_info *rinfo, + struct ripng_aggregate *aggregate); +extern void ripng_rte_send(struct list *ripng_rte_list, struct interface *ifp, + struct sockaddr_in6 *to); + +/*** + * 1 if A > B + * 0 if A = B + * -1 if A < B + **/ +static inline int addr6_cmp(struct in6_addr *A, struct in6_addr *B) +{ +#define a(i) A->s6_addr32[i] +#define b(i) B->s6_addr32[i] + + if (a(3) > b(3)) + return 1; + else if ((a(3) == b(3)) && (a(2) > b(2))) + return 1; + else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) > b(1))) + return 1; + else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1)) + && (a(0) > b(0))) + return 1; + + if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1)) + && (a(0) == b(0))) + return 0; + + return -1; +} + +#endif /* _ZEBRA_RIPNG_RIPNG_NEXTHOP_H */ |