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15637ed4 RG |
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 | * | |
78ed81a3 | 33 | * from: @(#)if_llc.h 7.2 (Berkeley) 6/28/90 |
34 | * $Id$ | |
15637ed4 RG |
35 | */ |
36 | ||
37 | /* | |
38 | * IEEE 802.2 Link Level Control headers, for use in conjunction with | |
39 | * 802.{3,4,5} media access control methods. | |
40 | * | |
41 | * Headers here do not use bit fields due to shortcommings in many | |
42 | * compilers. | |
43 | */ | |
44 | ||
45 | struct llc { | |
46 | u_char llc_dsap; | |
47 | u_char llc_ssap; | |
48 | union { | |
49 | struct { | |
50 | u_char control; | |
51 | u_char format_id; | |
52 | u_char class; | |
53 | u_char window_x2; | |
54 | } type_u; | |
55 | struct { | |
56 | u_char num_snd_x2; | |
57 | u_char num_rcv_x2; | |
58 | } type_i; | |
59 | struct { | |
60 | u_char control; | |
61 | u_char num_rcv_x2; | |
62 | } type_s; | |
63 | struct { | |
64 | u_char control; | |
65 | u_char org_code[3]; | |
66 | u_short ether_type; | |
67 | } type_snap; | |
68 | } llc_un; | |
69 | }; | |
70 | #define llc_control llc_un.type_u.control | |
71 | #define llc_fid llc_un.type_u.format_id | |
72 | #define llc_class llc_un.type_u.class | |
73 | #define llc_window llc_un.type_u.window_x2 | |
74 | ||
75 | #define LLC_UI 0x3 | |
76 | #define LLC_UI_P 0x13 | |
77 | #define LLC_XID 0xaf | |
78 | #define LLC_XID_P 0xbf | |
79 | #define LLC_TEST 0xe3 | |
80 | #define LLC_TEST_P 0xf3 | |
81 | ||
82 | #define LLC_ISO_LSAP 0xfe | |
83 | #define LLC_SNAP_LSAP 0xaa |