/*
 * Argus Software
 * Copyright (c) 2000-2014 QoSient, LLC
 * All rights reserved.
 *
 * 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, or (at your option)
 * any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/*
 * Copyright (c) 1992, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 */

/* 
 * $Id: //depot/argus/clients/include/argus/fddi.h#5 $
 * $DateTime: 2014/05/12 10:49:40 $
 * $Change: 2818 $
 */

/*
 * Based on Ultrix if_fddi.h
 */

/*
 * This stuff should come from a system header file, but there's no
 * obviously portable way to do that and it's not really going
 * to change from system to system (except for the padding business).
 */

struct fddi_header {
#if defined(ultrix) || defined(__alpha)
	/* Ultrix pads to make everything line up on a nice boundary */
#define	FDDIPAD	3
	u_char  fddi_ph[FDDIPAD];
#else
#define	FDDIPAD	0
#endif
	u_char  fddi_fc;		/* frame control */
	u_char  fddi_dhost[6];
	u_char  fddi_shost[6];
};


/* Useful values for fddi_fc (frame control) field */

/*
 * FDDI Frame Control bits
 */
#define	FDDIFC_C		0x80		/* Class bit */
#define	FDDIFC_L		0x40		/* Address length bit */
#define	FDDIFC_F		0x30		/* Frame format bits */
#define	FDDIFC_Z		0x0f		/* Control bits */

/*
 * FDDI Frame Control values. (48-bit addressing only).
 */
#define	FDDIFC_VOID		0x40		/* Void frame */
#define	FDDIFC_NRT		0x80		/* Nonrestricted token */
#define	FDDIFC_RT		0xc0		/* Restricted token */
#define	FDDIFC_SMT_INFO		0x41		/* SMT Info */
#define	FDDIFC_SMT_NSA		0x4F		/* SMT Next station adrs */
#define	FDDIFC_MAC_BEACON	0xc2		/* MAC Beacon frame */
#define	FDDIFC_MAC_CLAIM	0xc3		/* MAC Claim frame */
#define	FDDIFC_LLC_ASYNC	0x50		/* Async. LLC frame */
#define	FDDIFC_LLC_SYNC		0xd0		/* Sync. LLC frame */
#define	FDDIFC_IMP_ASYNC	0x60		/* Implementor Async. */
#define	FDDIFC_IMP_SYNC		0xe0		/* Implementor Synch. */
#define FDDIFC_SMT		0x40		/* SMT frame */
#define FDDIFC_MAC		0xc0		/* MAC frame */

#define	FDDIFC_CLFF		0xF0		/* Class/Length/Format bits */
#define	FDDIFC_ZZZZ		0x0F		/* Control bits */
