| /* $NetBSD: if_ether.h,v 1.34 2007/12/25 18:33:46 perry 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 8.3 (Berkeley) 5/2/95 |
| */ |
| |
| #ifndef _NETINET_IF_ETHER_H_ |
| #define _NETINET_IF_ETHER_H_ |
| |
| #include <sys/cdefs.h> |
| #include <sys/types.h> |
| |
| #if defined(__USE_BSD) |
| |
| /* pull in Ethernet-specific definitions and packet structures */ |
| |
| #include <linux/if_ether.h> |
| |
| /* pull in ARP-specific definitions and packet structures */ |
| |
| #include <net/if_arp.h> |
| |
| #include <net/ethernet.h> |
| |
| /* ... and define some more which we don't need anymore: */ |
| |
| /* |
| * Ethernet Address Resolution Protocol. |
| * |
| * See RFC 826 for protocol description. Structure below is not |
| * used by our kernel!!! Only for userland programs which are externally |
| * maintained and need it. |
| */ |
| |
| struct ether_arp { |
| struct arphdr ea_hdr; /* fixed-size header */ |
| u_int8_t arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */ |
| u_int8_t arp_spa[4]; /* sender protocol address */ |
| u_int8_t arp_tha[ETHER_ADDR_LEN]; /* target hardware address */ |
| u_int8_t arp_tpa[4]; /* target protocol address */ |
| } __packed; |
| #define arp_hrd ea_hdr.ar_hrd |
| #define arp_pro ea_hdr.ar_pro |
| #define arp_hln ea_hdr.ar_hln |
| #define arp_pln ea_hdr.ar_pln |
| #define arp_op ea_hdr.ar_op |
| |
| /* |
| * Macro to map an IP multicast address to an Ethernet multicast address. |
| * The high-order 25 bits of the Ethernet address are statically assigned, |
| * and the low-order 23 bits are taken from the low end of the IP address. |
| */ |
| #define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr) \ |
| /* struct in_addr *ipaddr; */ \ |
| /* u_int8_t enaddr[ETHER_ADDR_LEN]; */ \ |
| { \ |
| (enaddr)[0] = 0x01; \ |
| (enaddr)[1] = 0x00; \ |
| (enaddr)[2] = 0x5e; \ |
| (enaddr)[3] = ((u_int8_t *)ipaddr)[1] & 0x7f; \ |
| (enaddr)[4] = ((u_int8_t *)ipaddr)[2]; \ |
| (enaddr)[5] = ((u_int8_t *)ipaddr)[3]; \ |
| } |
| /* |
| * Macro to map an IP6 multicast address to an Ethernet multicast address. |
| * The high-order 16 bits of the Ethernet address are statically assigned, |
| * and the low-order 32 bits are taken from the low end of the IP6 address. |
| */ |
| #define ETHER_MAP_IPV6_MULTICAST(ip6addr, enaddr) \ |
| /* struct in6_addr *ip6addr; */ \ |
| /* u_int8_t enaddr[ETHER_ADDR_LEN]; */ \ |
| { \ |
| (enaddr)[0] = 0x33; \ |
| (enaddr)[1] = 0x33; \ |
| (enaddr)[2] = ((u_int8_t *)ip6addr)[12]; \ |
| (enaddr)[3] = ((u_int8_t *)ip6addr)[13]; \ |
| (enaddr)[4] = ((u_int8_t *)ip6addr)[14]; \ |
| (enaddr)[5] = ((u_int8_t *)ip6addr)[15]; \ |
| } |
| |
| #endif /* __USE_BSD */ |
| |
| #endif /* !_NET_IF_ETHER_H_ */ |