FreeBSD/Linux Kernel Cross Reference
sys/netatalk/at.h
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: src/sys/netatalk/at.h,v 1.8 2007/01/12 13:18:08 rwatson Exp $
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 */
51 struct 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
61 struct 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 */
73 struct 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
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