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   1 /*
   2  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  * @(#) $Header: /tcpdump/master/tcpdump/ipfc.h,v 1.2 2002-11-09 17:19:19 itojun Exp $ (LBL)
  22  */
  23
  24 struct ipfc_header {
  25         u_char  ipfc_dhost[8];
  26         u_char  ipfc_shost[8];
  27 } __attribute__((packed));
  28
  29 #define IPFC_HDRLEN 16
  30
  31 /* Useful values for fddi_fc (frame control) field */
  32
  33 /*
  34  * FDDI Frame Control bits
  35  */
  36 #define FDDIFC_C                0x80            /* Class bit */
  37 #define FDDIFC_L                0x40            /* Address length bit */
  38 #define FDDIFC_F                0x30            /* Frame format bits */
  39 #define FDDIFC_Z                0x0f            /* Control bits */
  40
  41 /*
  42  * FDDI Frame Control values. (48-bit addressing only).
  43  */
  44 #define FDDIFC_VOID             0x40            /* Void frame */
  45 #define FDDIFC_NRT              0x80            /* Nonrestricted token */
  46 #define FDDIFC_RT               0xc0            /* Restricted token */
  47 #define FDDIFC_SMT_INFO         0x41            /* SMT Info */
  48 #define FDDIFC_SMT_NSA          0x4F            /* SMT Next station adrs */
  49 #define FDDIFC_MAC_BEACON       0xc2            /* MAC Beacon frame */
  50 #define FDDIFC_MAC_CLAIM        0xc3            /* MAC Claim frame */
  51 #define FDDIFC_LLC_ASYNC        0x50            /* Async. LLC frame */
  52 #define FDDIFC_LLC_SYNC         0xd0            /* Sync. LLC frame */
  53 #define FDDIFC_IMP_ASYNC        0x60            /* Implementor Async. */
  54 #define FDDIFC_IMP_SYNC         0xe0            /* Implementor Synch. */
  55 #define FDDIFC_SMT              0x40            /* SMT frame */
  56 #define FDDIFC_MAC              0xc0            /* MAC frame */
  57
  58 #define FDDIFC_CLFF             0xF0            /* Class/Length/Format bits */
  59 #define FDDIFC_ZZZZ             0x0F            /* Control bits */