1/*	$NetBSD: if_ether.h,v 1.37 2021/02/03 17:10:13 roy Exp $	*/
2
3/*
4 * Copyright (c) 1982, 1986, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)if_ether.h	8.3 (Berkeley) 5/2/95
32 */
33
34#ifndef _NETINET_IF_ETHER_H_
35#define _NETINET_IF_ETHER_H_
36
37
38#ifdef _KERNEL
39#error You should NOT be doing this.
40/*
41 * XXX This file is for compatibility to externally maintained packages
42 * ONLY, or to help porting them if the other way round is not possible.
43 * Kernel drivers should be properly ported.
44 */
45#endif
46
47
48#ifndef _netinet_if_ether_compat_h_
49#define _netinet_if_ether_compat_h_
50
51/* pull in Ethernet-specific definitions and packet structures */
52
53#include <net/if_ether.h>
54
55/* pull in ARP-specific definitions and packet structures */
56
57#include <net/if_arp.h>
58
59/* pull in ARP-over-Ethernet-specific definitions and packet structures */
60#include <netinet/if_inarp.h>
61
62/* ... and define some more which we don't need anymore: */
63
64/*
65 * Ethernet Address Resolution Protocol.
66 *
67 * See RFC 826 for protocol description.  Structure below is not
68 * used by our kernel!!! Only for userland programs which are externally
69 * maintained and need it.
70 */
71
72struct	ether_arp {
73	struct	 arphdr ea_hdr;			/* fixed-size header */
74	u_int8_t arp_sha[ETHER_ADDR_LEN];	/* sender hardware address */
75	u_int8_t arp_spa[4];			/* sender protocol address */
76	u_int8_t arp_tha[ETHER_ADDR_LEN];	/* target hardware address */
77	u_int8_t arp_tpa[4];			/* target protocol address */
78};
79#ifdef CTASSERT
80CTASSERT(sizeof(struct ether_arp) == 28);
81#endif
82#define	arp_hrd	ea_hdr.ar_hrd
83#define	arp_pro	ea_hdr.ar_pro
84#define	arp_hln	ea_hdr.ar_hln
85#define	arp_pln	ea_hdr.ar_pln
86#define	arp_op	ea_hdr.ar_op
87
88#endif /* _netinet_if_ether_compat_h_ */
89
90#endif /* !_NETINET_IF_ETHER_H_ */
91