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if_inarp.h revision 1.26 
      1 /*	$NetBSD: if_inarp.h,v 1.26 1997/03/15 18:12:35 is Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1982, 1986, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)if_ether.h	8.1 (Berkeley) 6/10/93
     36  */
     37 
     38 struct llinfo_arp {
     39 	LIST_ENTRY(llinfo_arp) la_list;
     40 	struct	rtentry *la_rt;
     41 	struct	mbuf *la_hold;		/* last packet until resolved/timeout */
     42 	long	la_asked;		/* last time we QUERIED for this addr */
     43 #define la_timer la_rt->rt_rmx.rmx_expire /* deletion time in seconds */
     44 };
     45 
     46 struct sockaddr_inarp {
     47 	u_int8_t  sin_len;
     48 	u_int8_t  sin_family;
     49 	u_int16_t sin_port;
     50 	struct	  in_addr sin_addr;
     51 	struct	  in_addr sin_srcaddr;
     52 	u_int16_t sin_tos;
     53 	u_int16_t sin_other;
     54 #define SIN_PROXY 1
     55 };
     56 
     57 /*
     58  * IP and ethernet specific routing flags
     59  */
     60 #define	RTF_USETRAILERS	RTF_PROTO1	/* use trailers */
     61 #define	RTF_ANNOUNCE	RTF_PROTO2	/* announce new arp entry */
     62 
     63 #ifdef _KERNEL
     64 struct	ifqueue arpintrq;
     65 void arp_ifinit __P((struct ifnet *, struct ifaddr *));
     66 void arp_rtrequest __P((int, struct rtentry *, struct sockaddr *));
     67 int arpresolve __P((struct ifnet *, struct rtentry *, struct mbuf *,
     68 		    struct sockaddr *, u_char *));
     69 void arpintr __P((void));
     70 int arpioctl __P((u_long, caddr_t));
     71 void arpwhohas __P((struct ifnet *, struct in_addr *));
     72 
     73 void revarpinput __P((struct mbuf *));
     74 void in_revarpinput __P((struct mbuf *));
     75 void revarprequest __P((struct ifnet *));
     76 int revarpwhoarewe __P((struct ifnet *, struct in_addr *, struct in_addr *));
     77 int revarpwhoami __P((struct in_addr *, struct ifnet *));
     78 int db_show_arptab __P((void));
     79 #endif
     80