1 /******************************************************************************
2 *
3 * (C)Copyright 1998,1999 SysKonnect,
4 * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * The information in this file is provided "AS IS" without warranty.
12 *
13 ******************************************************************************/
14
15 #ifndef _FDDI_
16 #define _FDDI_
17
18 struct fddi_addr {
19 u_char a[6] ;
20 } ;
21
22 #define GROUP_ADDR 0x80 /* MSB in a[0] */
23
24 struct fddi_mac {
25 struct fddi_addr mac_dest ;
26 struct fddi_addr mac_source ;
27 u_char mac_info[4478] ;
28 } ;
29
30 #define FDDI_MAC_SIZE (12)
31 #define FDDI_RAW_MTU (4500-5) /* exl. Pr,SD, ED/FS */
32 #define FDDI_RAW (4500)
33
34 /*
35 * FC values
36 */
37 #define FC_VOID 0x40 /* void frame */
38 #define FC_TOKEN 0x80 /* token */
39 #define FC_RES_TOKEN 0xc0 /* restricted token */
40 #define FC_SMT_INFO 0x41 /* SMT Info frame */
41 /*
42 * FC_SMT_LAN_LOC && FC_SMT_LOC are SK specific !
43 */
44 #define FC_SMT_LAN_LOC 0x42 /* local SMT Info frame */
45 #define FC_SMT_LOC 0x43 /* local SMT Info frame */
46 #define FC_SMT_NSA 0x4f /* SMT NSA frame */
47 #define FC_MAC 0xc0 /* MAC frame */
48 #define FC_BEACON 0xc2 /* MAC beacon frame */
49 #define FC_CLAIM 0xc3 /* MAC claim frame */
50 #define FC_SYNC_LLC 0xd0 /* sync. LLC frame */
51 #define FC_ASYNC_LLC 0x50 /* async. LLC frame */
52 #define FC_SYNC_BIT 0x80 /* sync. bit in FC */
53
54 #define FC_LLC_PRIOR 0x07 /* priority bits */
55
56 #define BEACON_INFO 0 /* beacon type */
57 #define DBEACON_INFO 1 /* beacon type DIRECTED */
58
59
60 /*
61 * indicator bits
62 */
63 #define C_INDICATOR (1<<0)
64 #define A_INDICATOR (1<<1)
65 #define E_INDICATOR (1<<2)
66 #define I_INDICATOR (1<<6) /* SK specific */
67 #define L_INDICATOR (1<<7) /* SK specific */
68
69 #endif /* _FDDI_ */
70
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