| /* |
| * 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 1.11 2002-12-11 07:13:51 guy 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]; |
| }; |
| |
| /* |
| * Length of an FDDI header; note that some compilers may pad |
| * "struct fddi_header" to a multiple of 4 bytes, for example, so |
| * "sizeof (struct fddi_header)" may not give the right |
| * answer. |
| */ |
| #define FDDI_HDRLEN 13 |
| |
| /* 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 */ |
