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111 lines
4.0 KiB
111 lines
4.0 KiB
/* $NetBSD: if_ether.h,v 1.34 2007/12/25 18:33:46 perry Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_ether.h 8.3 (Berkeley) 5/2/95
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*/
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#ifndef _NETINET_IF_ETHER_H_
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#define _NETINET_IF_ETHER_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#if defined(__USE_BSD)
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/* pull in Ethernet-specific definitions and packet structures */
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#include <linux/if_ether.h>
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/* pull in ARP-specific definitions and packet structures */
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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/* ... and define some more which we don't need anymore: */
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/*
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* Ethernet Address Resolution Protocol.
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*
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* See RFC 826 for protocol description. Structure below is not
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* used by our kernel!!! Only for userland programs which are externally
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* maintained and need it.
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*/
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struct ether_arp {
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struct arphdr ea_hdr; /* fixed-size header */
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u_int8_t arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */
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u_int8_t arp_spa[4]; /* sender protocol address */
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u_int8_t arp_tha[ETHER_ADDR_LEN]; /* target hardware address */
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u_int8_t arp_tpa[4]; /* target protocol address */
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} __packed;
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#define arp_hrd ea_hdr.ar_hrd
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#define arp_pro ea_hdr.ar_pro
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#define arp_hln ea_hdr.ar_hln
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#define arp_pln ea_hdr.ar_pln
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#define arp_op ea_hdr.ar_op
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/*
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* Macro to map an IP multicast address to an Ethernet multicast address.
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* The high-order 25 bits of the Ethernet address are statically assigned,
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* and the low-order 23 bits are taken from the low end of the IP address.
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*/
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#define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr) \
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/* struct in_addr *ipaddr; */ \
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/* u_int8_t enaddr[ETHER_ADDR_LEN]; */ \
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{ \
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(enaddr)[0] = 0x01; \
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(enaddr)[1] = 0x00; \
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(enaddr)[2] = 0x5e; \
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(enaddr)[3] = ((u_int8_t *)ipaddr)[1] & 0x7f; \
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(enaddr)[4] = ((u_int8_t *)ipaddr)[2]; \
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(enaddr)[5] = ((u_int8_t *)ipaddr)[3]; \
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}
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/*
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* Macro to map an IP6 multicast address to an Ethernet multicast address.
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* The high-order 16 bits of the Ethernet address are statically assigned,
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* and the low-order 32 bits are taken from the low end of the IP6 address.
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*/
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#define ETHER_MAP_IPV6_MULTICAST(ip6addr, enaddr) \
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/* struct in6_addr *ip6addr; */ \
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/* u_int8_t enaddr[ETHER_ADDR_LEN]; */ \
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{ \
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(enaddr)[0] = 0x33; \
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(enaddr)[1] = 0x33; \
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(enaddr)[2] = ((u_int8_t *)ip6addr)[12]; \
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(enaddr)[3] = ((u_int8_t *)ip6addr)[13]; \
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(enaddr)[4] = ((u_int8_t *)ip6addr)[14]; \
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(enaddr)[5] = ((u_int8_t *)ip6addr)[15]; \
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}
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#endif /* __USE_BSD */
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#endif /* !_NET_IF_ETHER_H_ */
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