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- /*
- * 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.
- *
- * @(#) $Header: fddi.h,v 1.6 94/06/14 20:12:35 leres Exp $ (LBL)
- */
-
- /*
- * 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 */
-