includes/netinet/if_ether.h

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00001 /*      $NetBSD: if_ether.h,v 1.20 1995/06/12 00:47:27 mycroft Exp $    */
00002 
00003 /*
00004  * Copyright (c) 1982, 1986, 1993
00005  *      The Regents of the University of California.  All rights reserved.
00006  *
00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions
00009  * are met:
00010  * 1. Redistributions of source code must retain the above copyright
00011  *    notice, this list of conditions and the following disclaimer.
00012  * 2. Redistributions in binary form must reproduce the above copyright
00013  *    notice, this list of conditions and the following disclaimer in the
00014  *    documentation and/or other materials provided with the distribution.
00015  * 3. Neither the name of the University nor the names of its contributors
00016  *    may be used to endorse or promote products derived from this software
00017  *    without specific prior written permission.
00018  *
00019  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
00020  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00021  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00022  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
00023  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00024  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00025  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00026  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00027  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00028  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00029  * SUCH DAMAGE.
00030  *
00031  *      @(#)if_ether.h  8.1 (Berkeley) 6/10/93
00032  */
00033 
00034 #ifndef netinet_if_ether_h
00035 #define netinet_if_ether_h
00036 
00037 /*
00038  * Ethernet address - 6 octets
00039  * this is only used by the ethers(3) functions.
00040  */
00041 struct ether_addr {
00042         u_int8_t ether_addr_octet[6];
00043 };
00044 
00045 /*
00046  * Structure of a 10Mb/s Ethernet header.
00047  */
00048 #define ETHER_ADDR_LEN  6
00049 
00050 struct  isc_ether_header {
00051         u_int8_t  ether_dhost[ETHER_ADDR_LEN];
00052         u_int8_t  ether_shost[ETHER_ADDR_LEN];
00053         u_int16_t ether_type;
00054 };
00055 
00056 #define       ETHERTYPE_PUP           0x0200  /* PUP protocol */
00057 #define       ETHERTYPE_IP            0x0800  /* IP protocol */
00058 #define       ETHERTYPE_ARP           0x0806  /* address resolution protocol */
00059 
00060 #define ETHER_HEADER_SIZE (ETHER_ADDR_LEN * 2 + sizeof (u_int16_t))
00061 
00062 #endif

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