aarp.h revision 139827 
1/*-
2 * Copyright (c) 1990,1991 Regents of The University of Michigan.
3 * All Rights Reserved.
4 *
5 * Permission to use, copy, modify, and distribute this software and
6 * its documentation for any purpose and without fee is hereby granted,
7 * provided that the above copyright notice appears in all copies and
8 * that both that copyright notice and this permission notice appear
9 * in supporting documentation, and that the name of The University
10 * of Michigan not be used in advertising or publicity pertaining to
11 * distribution of the software without specific, written prior
12 * permission. This software is supplied as is without expressed or
13 * implied warranties of any kind.
14 *
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 *
18 *	Research Systems Unix Group
19 *	The University of Michigan
20 *	c/o Wesley Craig
21 *	535 W. William Street
22 *	Ann Arbor, Michigan
23 *	+1-313-764-2278
24 *	netatalk@umich.edu
25 *
26 * $FreeBSD: head/sys/netatalk/aarp.h 139827 2005-01-07 02:35:34Z imp $
27 */
28
29#ifndef _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_char		ap_pa[4];
39    struct ap_node {
40	u_char		an_zero;
41	u_char		an_net[2];
42	u_char		an_node;
43    } ap_node;
44};
45
46struct ether_aarp {
47    struct arphdr	eaa_hdr;
48    u_char		aarp_sha[6];
49    union aapa		aarp_spu;
50    u_char		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_char		aat_enaddr[ 6 ];
68    u_char		aat_timer;
69    u_char		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
79#ifdef _KERNEL
80struct aarptab		*aarptnew(struct at_addr      *);
81#endif
82
83#endif /* _NETATALK_AARP_H_ */
84