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/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Copyright (c) 1995 John Hay. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)table.h 5.1 (Berkeley) 6/4/85 (routed/table.h)
*
* @(#)table.h 8.1 (Berkeley) 6/5/93
*
* $Id: table.h,v 1.4 1997/02/22 16:01:02 peter Exp $
*/
/*
* Routing table management daemon.
*/
/*
* Routing table structure; differs a bit from kernel tables.
*
* Note: the union below must agree in the first 4 members
* so the ioctl's will work.
*/
struct rthash {
struct rt_entry *rt_forw;
struct rt_entry *rt_back;
};
#ifdef RTM_ADD
#define rtentry ortentry
#endif
struct rt_entry {
struct rt_entry *rt_forw;
struct rt_entry *rt_back;
union {
struct rtentry rtu_rt;
struct rtuentry {
u_long rtu_hash;
struct sockaddr rtu_dst;
struct sockaddr rtu_router;
short rtu_rtflags; /* used by old rtioctl */
short rtu_wasted; /* XXX routed does it this way. */
int rtu_flags;
int rtu_state;
int rtu_timer;
int rtu_metric;
int rtu_ticks;
struct interface *rtu_ifp;
} rtu_entry;
} rt_rtu;
struct rt_entry *rt_clone;
};
#define rt_rt rt_rtu.rtu_entry /* pass to ioctl */
#define rt_hash rt_rtu.rtu_entry.rtu_hash /* for net or host */
#define rt_dst rt_rtu.rtu_entry.rtu_dst /* match value */
#define rt_router rt_rtu.rtu_entry.rtu_router /* who to forward to */
#define rt_flags rt_rtu.rtu_entry.rtu_flags /* kernel flags */
#define rt_timer rt_rtu.rtu_entry.rtu_timer /* for invalidation */
#define rt_state rt_rtu.rtu_entry.rtu_state /* see below */
#define rt_metric rt_rtu.rtu_entry.rtu_metric /* cost of route */
#define rt_ticks rt_rtu.rtu_entry.rtu_ticks /* time of route */
#define rt_ifp rt_rtu.rtu_entry.rtu_ifp /* interface to take */
#define ROUTEHASHSIZ 128 /* must be a power of 2 */
#define ROUTEHASHMASK (ROUTEHASHSIZ - 1)
/*
* "State" of routing table entry.
*/
#define RTS_CHANGED 0x1 /* route has been altered recently */
#define RTS_PASSIVE IFF_PASSIVE /* don't time out route */
#define RTS_INTERFACE IFF_INTERFACE /* route is for network interface */
#define RTS_REMOTE IFF_REMOTE /* route is for ``remote'' entity */
extern struct rthash nethash[ROUTEHASHSIZ];
struct rt_entry *rtlookup(struct sockaddr *);
struct rt_entry *rtfind(struct sockaddr *);
void rtadd(struct sockaddr *, struct sockaddr *, short, short, int);
void rtadd_clone(struct rt_entry *, struct sockaddr *, struct sockaddr *,
short, short, int);
void rtchange(struct rt_entry *, struct sockaddr *, short, short);
void rtdelete(struct rt_entry *);
int rtioctl(int, struct rtuentry *);
void rtinit(void);
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