1/*	$NetBSD: aarp.h,v 1.3 2011/05/08 13:51:31 bouyer Exp $	*/
 2
 3/*
 4 * Copyright (c) 1990,1991 Regents of The University of Michigan.
 5 * All Rights Reserved.
 6 *
 7 * Permission to use, copy, modify, and distribute this software and
 8 * its documentation for any purpose and without fee is hereby granted,
 9 * provided that the above copyright notice appears in all copies and
10 * that both that copyright notice and this permission notice appear
11 * in supporting documentation, and that the name of The University
12 * of Michigan not be used in advertising or publicity pertaining to
13 * distribution of the software without specific, written prior
14 * permission. This software is supplied as is without expressed or
15 * implied warranties of any kind.
16 *
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 *
20 *	Research Systems Unix Group
21 *	The University of Michigan
22 *	c/o Wesley Craig
23 *	535 W. William Street
24 *	Ann Arbor, Michigan
25 *	+1-313-764-2278
26 *	netatalk@umich.edu
27 */
28#ifndef _NETATALK_AARP_H_
29#define _NETATALK_AARP_H_
30/*
31 * This structure is used for both phase 1 and 2. Under phase 1
32 * the net is not filled in. It is in phase 2. In both cases, the
33 * hardware address length is (for some unknown reason) 4. If
34 * anyone at Apple could program their way out of paper bag, it
35 * would be 1 and 3 respectively for phase 1 and 2.
36 */
37union aapa {
38	u_int8_t ap_pa[4];
39	struct ap_node {
40		u_int8_t an_zero;
41		u_int8_t an_net[2];
42		u_int8_t an_node;
43	} ap_node;
44};
45
46struct ether_aarp {
47	struct arphdr   eaa_hdr;
48	u_int8_t        aarp_sha[6];
49	union aapa      aarp_spu;
50	u_int8_t        aarp_tha[6];
51	union aapa      aarp_tpu;
52};
53#define aarp_hrd	eaa_hdr.ar_hrd
54#define aarp_pro	eaa_hdr.ar_pro
55#define aarp_hln	eaa_hdr.ar_hln
56#define aarp_pln	eaa_hdr.ar_pln
57#define aarp_op		eaa_hdr.ar_op
58#define aarp_spa	aarp_spu.ap_node.an_node
59#define aarp_tpa	aarp_tpu.ap_node.an_node
60#define aarp_spnet	aarp_spu.ap_node.an_net
61#define aarp_tpnet	aarp_tpu.ap_node.an_net
62#define aarp_spnode	aarp_spu.ap_node.an_node
63#define aarp_tpnode	aarp_tpu.ap_node.an_node
64
65struct aarptab {
66	struct at_addr  aat_ataddr;
67	u_int8_t        aat_enaddr[6];
68	u_int8_t        aat_timer;
69	u_int8_t        aat_flags;
70	struct mbuf    *aat_hold;
71};
72
73#define AARPHRD_ETHER	0x0001
74
75#define AARPOP_REQUEST	0x01
76#define AARPOP_RESPONSE	0x02
77#define AARPOP_PROBE	0x03
78
79extern struct mowner aarp_mowner;
80
81#endif /* !_NETATALK_AARP_H_ */