1 /* Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef __NETINET_IF_ETHER_H 20 21 #define __NETINET_IF_ETHER_H 1 22 #include <features.h> 23 #include <sys/types.h> 24 25 /* Get definitions from kernel header file. */ 26 #include <linux/if_ether.h> 27 28 #ifdef __USE_BSD 29 /* 30 * Copyright (c) 1982, 1986, 1993 31 * The Regents of the University of California. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 4. Neither the name of the University nor the names of its contributors 42 * may be used to endorse or promote products derived from this software 43 * without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 * 57 * @(#)if_ether.h 8.3 (Berkeley) 5/2/95 58 * $FreeBSD$ 59 */ 60 61 #include <net/ethernet.h> 62 #include <net/if_arp.h> 63 64 __BEGIN_DECLS 65 /* 66 * Ethernet Address Resolution Protocol. 67 * 68 * See RFC 826 for protocol description. Structure below is adapted 69 * to resolving internet addresses. Field names used correspond to 70 * RFC 826. 71 */ 72 struct ether_arp { 73 struct arphdr ea_hdr; /* fixed-size header */ 74 u_int8_t arp_sha[ETH_ALEN]; /* sender hardware address */ 75 u_int8_t arp_spa[4]; /* sender protocol address */ 76 u_int8_t arp_tha[ETH_ALEN]; /* target hardware address */ 77 u_int8_t arp_tpa[4]; /* target protocol address */ 78 }; 79 #define arp_hrd ea_hdr.ar_hrd 80 #define arp_pro ea_hdr.ar_pro 81 #define arp_hln ea_hdr.ar_hln 82 #define arp_pln ea_hdr.ar_pln 83 #define arp_op ea_hdr.ar_op 84 85 /* 86 * Macro to map an IP multicast address to an Ethernet multicast address. 87 * The high-order 25 bits of the Ethernet address are statically assigned, 88 * and the low-order 23 bits are taken from the low end of the IP address. 89 */ 90 #define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr) \ 91 /* struct in_addr *ipaddr; */ \ 92 /* u_char enaddr[ETH_ALEN]; */ \ 93 { \ 94 (enaddr)[0] = 0x01; \ 95 (enaddr)[1] = 0x00; \ 96 (enaddr)[2] = 0x5e; \ 97 (enaddr)[3] = ((u_int8_t *)ipaddr)[1] & 0x7f; \ 98 (enaddr)[4] = ((u_int8_t *)ipaddr)[2]; \ 99 (enaddr)[5] = ((u_int8_t *)ipaddr)[3]; \ 100 } 101 102 __END_DECLS 103 #endif /* __USE_BSD */ 104 105 #endif /* netinet/if_ether.h */ 106