/* * Copyright (c) 1992, 1993, 1994, 1995, 1996 * 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: /tcpdump/master/tcpdump/fddi.h,v 1.8.1.1 1999/10/07 23:47:10 mcr 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 { 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 */