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71 lines
2.9 KiB
C
71 lines
2.9 KiB
C
/* This file is part of Netsukuku system
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* (c) Copyright 2004 Andrea Lo Pumo aka AlpT <alpt@freaknet.org>
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*
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* This source code is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* This source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* Please refer to the GNU Public License for more details.
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*
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* You should have received a copy of the GNU Public License along with
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* this source code; if not, write to:
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* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef ROUTE_H
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#define ROUTE_H
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#include "gmap.h"
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#include "bmap.h"
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#include "if.h"
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#define MAX_MULTIPATH_ROUTES 24 /* The maximum number of
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nexthops used to create a
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single multipath route. */
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/*
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* get_gw_gnode_recurse() uses this array to decide the number of forks per
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* level. The number of forks for the level `x' is located at
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* sub_gw_links[GET_LEVELS(my_family) - x - 1].
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* `x' must be < GET_LEVELS(my_family).
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* For example, at level 3, in ipv4, it will fork in 4 gateway gnodes, then,
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* descending in each gw gnodes (in the lower level) it will fork in other 3
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* gw gnodes. Continuing it will reach the level 1, and there it will choose 2
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* gw gnodes for each forked gw gnode of the higher level. The total number of
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* gateways choosen will be MAX_MULTIPATH_ROUTES, which is 4*3*2.
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* For the ipv6 it's the same thing, but from the level 11 there will be no
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* more forks.
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*/
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const static int sub_gw_links[MAX_LEVELS] = { 4, 3, 2, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1 };
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/* * * Functions declaration * * */
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void **get_gw_gnode(map_node *, map_gnode **, map_bnode **,
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u_int *, map_gnode *, u_char, u_char, int);
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int get_gw_ips(map_node *, map_gnode **, map_bnode **, u_int *,
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quadro_group *, map_gnode *, u_char, u_char,
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inet_prefix *, map_node **, int);
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struct nexthop *rt_build_nexthop_gw(map_node *node, map_gnode *gnode, int level,
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int maxhops);
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void rt_update_node(inet_prefix *dst_ip, void *dst_node, quadro_group *dst_quadg,
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void *void_gw, interface **, u_char level);
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void rt_rnodes_update(int check_update_flag);
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void rt_full_update(int check_update_flag);
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int rt_get_default_gw(inet_prefix *gw, char *dev_name);
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int rt_add_gw(char *dev, inet_prefix to, inet_prefix gw, u_char table);
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int rt_del_gw(char *dev, inet_prefix to, inet_prefix gw, u_char table);
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int rt_change_gw(char *dev, inet_prefix to, inet_prefix gw, u_char table);
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int rt_replace_gw(char *dev, inet_prefix to, inet_prefix gw, u_char table);
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int rt_replace_def_gw(char *dev, inet_prefix gw, u_char table);
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int rt_delete_def_gw(u_char);
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int rt_del_loopback_net(void);
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int rt_append_subnet_src(inet_prefix *src, char *dev);
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#endif /*ROUTE_H*/
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