| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 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 */ |