xref: /src/external/mpl/dhcp/dist/includes/netinet/if_ether.h

/*	$NetBSD: if_ether.h,v 1.2 2018/04/07 22:37:30 christos Exp $	*/

/*	NetBSD: if_ether.h,v 1.20 1995/06/12 00:47:27 mycroft Exp 	*/

/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)if_ether.h	8.1 (Berkeley) 6/10/93
 */

#ifndef netinet_if_ether_h
#define netinet_if_ether_h

/*
 * Ethernet address - 6 octets
 * this is only used by the ethers(3) functions.
 */
struct ether_addr {
	u_int8_t ether_addr_octet[6];
};

/*
 * Structure of a 10Mb/s Ethernet header.
 */
#define	ETHER_ADDR_LEN	6

struct	isc_ether_header {
	u_int8_t  ether_dhost[ETHER_ADDR_LEN];
	u_int8_t  ether_shost[ETHER_ADDR_LEN];
	u_int16_t ether_type;
};

#define       ETHERTYPE_PUP           0x0200  /* PUP protocol */
#define       ETHERTYPE_IP            0x0800  /* IP protocol */
#define       ETHERTYPE_ARP           0x0806  /* address resolution protocol */

#define ETHER_HEADER_SIZE (ETHER_ADDR_LEN * 2 + sizeof (u_int16_t))

#endif