fddi.h

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/******************************************************************************
 *
 *  (C)Copyright 1998,1999 SysKonnect,
 *  a business unit of Schneider & Koch & Co. Datensysteme GmbH.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  The information in this file is provided "AS IS" without warranty.
 *
 ******************************************************************************/

#ifndef _FDDI_
#define _FDDI_

struct fddi_addr {
    u_char  a[6] ;
} ;

#define GROUP_ADDR  0x80        /* MSB in a[0] */

struct fddi_mac {
    struct fddi_addr    mac_dest ;
    struct fddi_addr    mac_source ;
    u_char          mac_info[4478] ;
} ;

#define FDDI_MAC_SIZE   (12)
#define FDDI_RAW_MTU    (4500-5)    /* exl. Pr,SD, ED/FS */
#define FDDI_RAW    (4500)

/*
 * FC values
 */
#define FC_VOID     0x40        /* void frame */
#define FC_TOKEN    0x80        /* token */
#define FC_RES_TOKEN    0xc0        /* restricted token */
#define FC_SMT_INFO 0x41        /* SMT Info frame */
/*
 * FC_SMT_LAN_LOC && FC_SMT_LOC are SK specific !
 */
#define FC_SMT_LAN_LOC  0x42        /* local SMT Info frame */
#define FC_SMT_LOC  0x43        /* local SMT Info frame */
#define FC_SMT_NSA  0x4f        /* SMT NSA frame */
#define FC_MAC      0xc0        /* MAC frame */
#define FC_BEACON   0xc2        /* MAC beacon frame */
#define FC_CLAIM    0xc3        /* MAC claim frame */
#define FC_SYNC_LLC 0xd0        /* sync. LLC frame */
#define FC_ASYNC_LLC    0x50        /* async. LLC frame */
#define FC_SYNC_BIT 0x80        /* sync. bit in FC */

#define FC_LLC_PRIOR    0x07        /* priority bits */

#define BEACON_INFO 0       /* beacon type */
#define DBEACON_INFO    1       /* beacon type DIRECTED */


/*
 * indicator bits
 */
#define C_INDICATOR (1<<0)
#define A_INDICATOR (1<<1)
#define E_INDICATOR (1<<2)
#define I_INDICATOR (1<<6)      /* SK specific */ 
#define L_INDICATOR (1<<7)      /* SK specific */

#endif  /* _FDDI_ */