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1/*
2 * Copyright (c) 1988 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
70c5ff60 33 * from: @(#)if_llc.h 7.2 (Berkeley) 6/28/90
8ace4366 34 * $Id: if_llc.h,v 1.2 1993/10/16 17:43:17 rgrimes Exp $
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35 */
36
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37#ifndef _NET_IF_LLC_H_
38#define _NET_IF_LLC_H_ 1
39
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40/*
41 * IEEE 802.2 Link Level Control headers, for use in conjunction with
42 * 802.{3,4,5} media access control methods.
43 *
44 * Headers here do not use bit fields due to shortcommings in many
45 * compilers.
46 */
47
48struct llc {
49 u_char llc_dsap;
50 u_char llc_ssap;
51 union {
52 struct {
53 u_char control;
54 u_char format_id;
55 u_char class;
56 u_char window_x2;
57 } type_u;
58 struct {
59 u_char num_snd_x2;
60 u_char num_rcv_x2;
61 } type_i;
62 struct {
63 u_char control;
64 u_char num_rcv_x2;
65 } type_s;
66 struct {
67 u_char control;
68 u_char org_code[3];
69 u_short ether_type;
70 } type_snap;
71 } llc_un;
72};
73#define llc_control llc_un.type_u.control
74#define llc_fid llc_un.type_u.format_id
75#define llc_class llc_un.type_u.class
76#define llc_window llc_un.type_u.window_x2
77
78#define LLC_UI 0x3
79#define LLC_UI_P 0x13
80#define LLC_XID 0xaf
81#define LLC_XID_P 0xbf
82#define LLC_TEST 0xe3
83#define LLC_TEST_P 0xf3
84
85#define LLC_ISO_LSAP 0xfe
86#define LLC_SNAP_LSAP 0xaa
8ace4366 87#endif /* _NET_IF_LLC_H_ */