The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netinet/if_inarp.h

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    1 /*      $NetBSD: if_inarp.h,v 1.41 2008/10/24 17:07:33 dyoung 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. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      @(#)if_ether.h  8.1 (Berkeley) 6/10/93
   32  */
   33 
   34 #ifndef _NETINET_IF_INARP_H_
   35 #define _NETINET_IF_INARP_H_
   36 
   37 struct llinfo_arp {
   38         LIST_ENTRY(llinfo_arp) la_list;
   39         struct  rtentry *la_rt;
   40         struct  mbuf *la_hold;          /* last packet until resolved/timeout */
   41         long    la_asked;               /* last time we QUERIED for this addr */
   42 #define la_timer la_rt->rt_rmx.rmx_expire /* deletion time in seconds */
   43 };
   44 
   45 struct sockaddr_inarp {
   46         u_int8_t  sin_len;
   47         u_int8_t  sin_family;
   48         u_int16_t sin_port;
   49         struct    in_addr sin_addr;
   50         struct    in_addr sin_srcaddr;
   51         u_int16_t sin_tos;
   52         u_int16_t sin_other;
   53 #define SIN_PROXY 1
   54 };
   55 
   56 /*
   57  * IP and ethernet specific routing flags
   58  */
   59 #define RTF_USETRAILERS RTF_PROTO1      /* use trailers */
   60 #define RTF_ANNOUNCE    RTF_PROTO2      /* announce new arp entry */
   61 
   62 #ifdef _KERNEL
   63 extern struct ifqueue arpintrq;
   64 void arp_ifinit(struct ifnet *, struct ifaddr *);
   65 void arp_rtrequest(int, struct rtentry *, const struct rt_addrinfo *);
   66 int arpresolve(struct ifnet *, struct rtentry *, struct mbuf *,
   67                     const struct sockaddr *, u_char *);
   68 void arpintr(void);
   69 void arprequest(struct ifnet *, const struct in_addr *, const struct in_addr *,
   70     const u_int8_t *);
   71 void arp_init(void);
   72 void arp_drain(void);
   73 int arpioctl(u_long, void *);
   74 void arpwhohas(struct ifnet *, struct in_addr *);
   75 
   76 void revarpinput(struct mbuf *);
   77 void in_revarpinput(struct mbuf *);
   78 void revarprequest(struct ifnet *);
   79 int revarpwhoarewe(struct ifnet *, struct in_addr *, struct in_addr *);
   80 #endif
   81 
   82 #endif /* !_NETINET_IF_INARP_H_ */

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