sys/netinet/if_ether.h

   1 /*      $NetBSD: if_ether.h,v 1.33 2006/09/25 12:24:47 sketch 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  8.3 (Berkeley) 5/2/95
  32  */
  33
  34 #ifndef _NETINET_IF_ETHER_H_
  35 #define _NETINET_IF_ETHER_H_
  36
  37
  38 #ifdef _KERNEL
  39 #error You should NOT be doing this.
  40 /*
  41  * XXX This file is for compatibility to externally maintained packages
  42  * ONLY, or to help porting them if the other way round is not possible.
  43  * Kernel drivers should be properly ported.
  44  */
  45 #endif
  46
  47
  48 #ifndef _netinet_if_ether_compat_h_
  49 #define _netinet_if_ether_compat_h_
  50
  51 /* pull in Ethernet-specific definitions and packet structures */
  52
  53 #include <net/if_ether.h>
  54
  55 /* pull in ARP-specific definitions and packet structures */
  56
  57 #include <net/if_arp.h>
  58
  59 /* pull in ARP-over-Ethernet-specific definitions and packet structures */
  60 #include <netinet/if_inarp.h>
  61
  62 /* ... and define some more which we don't need anymore: */
  63
  64 /*
  65  * Ethernet Address Resolution Protocol.
  66  *
  67  * See RFC 826 for protocol description.  Structure below is not
  68  * used by our kernel!!! Only for userland programs which are externally
  69  * maintained and need it.
  70  */
  71
  72 struct  ether_arp {
  73         struct   arphdr ea_hdr;                 /* fixed-size header */
  74         u_int8_t arp_sha[ETHER_ADDR_LEN];       /* sender hardware address */
  75         u_int8_t arp_spa[4];                    /* sender protocol address */
  76         u_int8_t arp_tha[ETHER_ADDR_LEN];       /* target hardware address */
  77         u_int8_t arp_tpa[4];                    /* target protocol address */
  78 } __packed;
  79 #define arp_hrd ea_hdr.ar_hrd
  80 #define arp_pro ea_hdr.ar_pro
  81 #define arp_hln ea_hdr.ar_hln
  82 #define arp_pln ea_hdr.ar_pln
  83 #define arp_op  ea_hdr.ar_op
  84
  85 #endif /* _netinet_if_ether_compat_h_ */
  86
  87 #endif /* !_NETINET_IF_ETHER_H_ */