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      1 /*	$NetBSD: if_ether.h,v 1.2 2018/04/07 22:37:30 christos Exp $	*/
      2 
      3 /*	NetBSD: if_ether.h,v 1.20 1995/06/12 00:47:27 mycroft Exp 	*/
      4 
      5 /*
      6  * Copyright (c) 1982, 1986, 1993
      7  *	The Regents of the University of California.  All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	@(#)if_ether.h	8.1 (Berkeley) 6/10/93
     34  */
     35 
     36 #ifndef netinet_if_ether_h
     37 #define netinet_if_ether_h
     38 
     39 /*
     40  * Ethernet address - 6 octets
     41  * this is only used by the ethers(3) functions.
     42  */
     43 struct ether_addr {
     44 	u_int8_t ether_addr_octet[6];
     45 };
     46 
     47 /*
     48  * Structure of a 10Mb/s Ethernet header.
     49  */
     50 #define	ETHER_ADDR_LEN	6
     51 
     52 struct	isc_ether_header {
     53 	u_int8_t  ether_dhost[ETHER_ADDR_LEN];
     54 	u_int8_t  ether_shost[ETHER_ADDR_LEN];
     55 	u_int16_t ether_type;
     56 };
     57 
     58 #define       ETHERTYPE_PUP           0x0200  /* PUP protocol */
     59 #define       ETHERTYPE_IP            0x0800  /* IP protocol */
     60 #define       ETHERTYPE_ARP           0x0806  /* address resolution protocol */
     61 
     62 #define ETHER_HEADER_SIZE (ETHER_ADDR_LEN * 2 + sizeof (u_int16_t))
     63 
     64 #endif
     65