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