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/* $OpenBSD: rtable.h,v 1.22 2018/11/23 16:24:11 claudio Exp $ */
/*
* Copyright (c) 2014-2016 Martin Pieuchot
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _NET_RTABLE_H_
#define _NET_RTABLE_H_
#if !defined(_KERNEL) && !defined(ART)
/*
* Traditional BSD routing table implementation based on a radix tree.
*/
#include <net/radix.h>
#define rt_key(rt) (((struct sockaddr *)(rt)->rt_nodes[0].rn_key))
#define rt_mask(rt) (((struct sockaddr *)(rt)->rt_nodes[0].rn_mask))
#define rt_plen(rt) (rtable_satoplen(rt_key(rt)->sa_family, rt_mask(rt)))
#define RT_ROOT(rt) ((rt)->rt_nodes[0].rn_flags & RNF_ROOT)
#else /* defined(_KERNEL) || defined(ART) */
/*
* Newer routing table implementation based on ART (Allotment Routing
* Table).
*/
#include <net/art.h>
#define rt_key(rt) ((rt)->rt_dest)
#define rt_plen(rt) ((rt)->rt_plen)
#define RT_ROOT(rt) (0)
#endif /* defined(_KERNEL) || defined(ART) */
int rtable_satoplen(sa_family_t, struct sockaddr *);
void rtable_init(void);
int rtable_exists(unsigned int);
int rtable_empty(unsigned int);
int rtable_add(unsigned int);
unsigned int rtable_l2(unsigned int);
unsigned int rtable_loindex(unsigned int);
void rtable_l2set(unsigned int, unsigned int, unsigned int);
struct rtentry *rtable_lookup(unsigned int, struct sockaddr *,
struct sockaddr *, struct sockaddr *, uint8_t);
struct rtentry *rtable_match(unsigned int, struct sockaddr *, uint32_t *);
struct rtentry *rtable_iterate(struct rtentry *);
int rtable_insert(unsigned int, struct sockaddr *,
struct sockaddr *, struct sockaddr *, uint8_t,
struct rtentry *);
int rtable_delete(unsigned int, struct sockaddr *,
struct sockaddr *, struct rtentry *);
int rtable_walk(unsigned int, sa_family_t,
int (*)(struct rtentry *, void *, unsigned int), void *);
int rtable_mpath_capable(unsigned int, sa_family_t);
struct rtentry *rtable_mpath_match(unsigned int, struct rtentry *,
struct sockaddr *, uint8_t);
int rtable_mpath_reprio(unsigned int, struct sockaddr *, int,
uint8_t, struct rtentry *);
#endif /* _NET_RTABLE_H_ */
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