1 /* $NetBSD: if_ether.h,v 1.1.1.2 2014/07/12 11:57:57 spz Exp $ */ 2 /* NetBSD: if_ether.h,v 1.20 1995/06/12 00:47:27 mycroft Exp */ 3 4 /* 5 * Copyright (c) 1982, 1986, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)if_ether.h 8.1 (Berkeley) 6/10/93 33 */ 34 35 #ifndef netinet_if_ether_h 36 #define netinet_if_ether_h 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)) 62 63 #endif 64