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 *	Research Systems Unix Group
16 *	The University of Michigan
17 *	c/o Mike Clark
18 *	535 W. William Street
19 *	Ann Arbor, Michigan
20 *	+1-313-763-0525
21 *	netatalk@itd.umich.edu
22 *
23 * $FreeBSD$
24 */
25
26#ifndef _NETATALK_AT_H_
27#define	_NETATALK_AT_H_
28
29/*
30 * Supported protocols
31 */
32#define	ATPROTO_DDP	0
33#define	ATPROTO_AARP	254
34
35#define	DDP_MAXSZ	587
36
37/*
38 * If ATPORT_FIRST <= Port < ATPORT_RESERVED, the port was created by a
39 * privileged process.
40 *
41 * If ATPORT_RESERVED <= Port < ATPORT_LAST, the port was not necessarily
42 * created by a privileged process.
43 */
44#define	ATPORT_FIRST	1
45#define	ATPORT_RESERVED	128
46#define	ATPORT_LAST	255
47
48/*
49 * AppleTalk address.
50 */
51struct at_addr {
52	u_short	s_net;
53	u_char	s_node;
54};
55
56#define	ATADDR_ANYNET	(u_short)0x0000
57#define	ATADDR_ANYNODE	(u_char)0x00
58#define	ATADDR_ANYPORT	(u_char)0x00
59#define	ATADDR_BCAST	(u_char)0xff	/* There is no BCAST for NET. */
60
61struct netrange {
62	u_char	nr_phase;
63	u_short	nr_firstnet;
64	u_short	nr_lastnet;
65};
66
67/*
68 * Socket address, AppleTalk style.  We keep magic information in the zero
69 * bytes.  There are three types, NONE, CONFIG which has the phase and a net
70 * range, and IFACE which has the network address of an interface.  IFACE may
71 * be filled in by the client, and is filled in by the kernel.
72 */
73struct sockaddr_at {
74	u_char		sat_len;
75	u_char		sat_family;
76	u_char		sat_port;
77	struct at_addr	sat_addr;
78	union {
79		struct netrange	r_netrange;
80		char		r_zero[8];	/* Hide struct netrange here. */
81	} sat_range;
82};
83
84#define	sat_zero	sat_range.r_zero
85
86#endif /* !_NETATALK_AT_H_ */
87