Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / fddi.h
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1/*
2 * Copyright (c) 1992, 1993, 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 *
21 * @(#) $Header: /tcpdump/master/tcpdump/fddi.h,v 1.11 2002/12/11 07:13:51 guy Exp $ (LBL)
22 */
23
24/*
25 * Based on Ultrix if_fddi.h
26 */
27
28/*
29 * This stuff should come from a system header file, but there's no
30 * obviously portable way to do that and it's not really going
31 * to change from system to system (except for the padding business).
32 */
33
34struct fddi_header {
35 u_char fddi_fc; /* frame control */
36 u_char fddi_dhost[6];
37 u_char fddi_shost[6];
38};
39
40/*
41 * Length of an FDDI header; note that some compilers may pad
42 * "struct fddi_header" to a multiple of 4 bytes, for example, so
43 * "sizeof (struct fddi_header)" may not give the right
44 * answer.
45 */
46#define FDDI_HDRLEN 13
47
48/* Useful values for fddi_fc (frame control) field */
49
50/*
51 * FDDI Frame Control bits
52 */
53#define FDDIFC_C 0x80 /* Class bit */
54#define FDDIFC_L 0x40 /* Address length bit */
55#define FDDIFC_F 0x30 /* Frame format bits */
56#define FDDIFC_Z 0x0f /* Control bits */
57
58/*
59 * FDDI Frame Control values. (48-bit addressing only).
60 */
61#define FDDIFC_VOID 0x40 /* Void frame */
62#define FDDIFC_NRT 0x80 /* Nonrestricted token */
63#define FDDIFC_RT 0xc0 /* Restricted token */
64#define FDDIFC_SMT_INFO 0x41 /* SMT Info */
65#define FDDIFC_SMT_NSA 0x4F /* SMT Next station adrs */
66#define FDDIFC_MAC_BEACON 0xc2 /* MAC Beacon frame */
67#define FDDIFC_MAC_CLAIM 0xc3 /* MAC Claim frame */
68#define FDDIFC_LLC_ASYNC 0x50 /* Async. LLC frame */
69#define FDDIFC_LLC_SYNC 0xd0 /* Sync. LLC frame */
70#define FDDIFC_IMP_ASYNC 0x60 /* Implementor Async. */
71#define FDDIFC_IMP_SYNC 0xe0 /* Implementor Synch. */
72#define FDDIFC_SMT 0x40 /* SMT frame */
73#define FDDIFC_MAC 0xc0 /* MAC frame */
74
75#define FDDIFC_CLFF 0xF0 /* Class/Length/Format bits */
76#define FDDIFC_ZZZZ 0x0F /* Control bits */