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