includes/netinet/if_ether.h

   1 /*      $NetBSD: if_ether.h,v 1.20 1995/06/12 00:47:27 mycroft 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 /*
  39  * Ethernet address - 6 octets
  40  * this is only used by the ethers(3) functions.
  41  */
  42 struct ether_addr {
  43         u_int8_t ether_addr_octet[6];
  44 };
  45
  46 /*
  47  * Structure of a 10Mb/s Ethernet header.
  48  */
  49 #define ETHER_ADDR_LEN  6
  50
  51 struct  isc_ether_header {
  52         u_int8_t  ether_dhost[ETHER_ADDR_LEN];
  53         u_int8_t  ether_shost[ETHER_ADDR_LEN];
  54         u_int16_t ether_type;
  55 };
  56
  57 #define       ETHERTYPE_PUP           0x0200  /* PUP protocol */
  58 #define       ETHERTYPE_IP            0x0800  /* IP protocol */
  59 #define       ETHERTYPE_ARP           0x0806  /* address resolution protocol */
  60
  61 #define ETHER_HEADER_SIZE (ETHER_ADDR_LEN * 2 + sizeof (u_int16_t))