contrib/tcpdump/arcnet.h

   1 /*
   2  * Copyright (c) 1982, 1986, 1993
   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 the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#) $Id: arcnet.h,v 1.3 2003-01-23 09:05:37 guy Exp $ (LBL)
  34  *
  35  * from: NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp
  36  */
  37
  38 /*
  39  * Structure of a 2.5MB/s Arcnet header on the BSDs,
  40  * as given to interface code.
  41  */
  42 struct  arc_header {
  43         u_int8_t  arc_shost;
  44         u_int8_t  arc_dhost;
  45         u_int8_t  arc_type;
  46         /*
  47          * only present for newstyle encoding with LL fragmentation.
  48          * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead.
  49          */
  50         u_int8_t  arc_flag;
  51         u_int16_t arc_seqid;
  52
  53         /*
  54          * only present in exception packets (arc_flag == 0xff)
  55          */
  56         u_int8_t  arc_type2;    /* same as arc_type */
  57         u_int8_t  arc_flag2;    /* real flag value */
  58         u_int16_t arc_seqid2;   /* real seqid value */
  59 };
  60
  61 #define ARC_HDRLEN              3
  62 #define ARC_HDRNEWLEN           6
  63 #define ARC_HDRNEWLEN_EXC       10
  64
  65 /* RFC 1051 */
  66 #define ARCTYPE_IP_OLD          240     /* IP protocol */
  67 #define ARCTYPE_ARP_OLD         241     /* address resolution protocol */
  68
  69 /* RFC 1201 */
  70 #define ARCTYPE_IP              212     /* IP protocol */
  71 #define ARCTYPE_ARP             213     /* address resolution protocol */
  72 #define ARCTYPE_REVARP          214     /* reverse addr resolution protocol */
  73
  74 #define ARCTYPE_ATALK           221     /* Appletalk */
  75 #define ARCTYPE_BANIAN          247     /* Banyan Vines */
  76 #define ARCTYPE_IPX             250     /* Novell IPX */
  77
  78 #define ARCTYPE_INET6           0xc4    /* IPng */
  79 #define ARCTYPE_DIAGNOSE        0x80    /* as per ANSI/ATA 878.1 */
  80
  81 /*
  82  * Structure of a 2.5MB/s Arcnet header on Linux.  Linux has
  83  * an extra "offset" field when given to interface code, and
  84  * never presents packets that look like exception frames.
  85  */
  86 struct  arc_linux_header {
  87         u_int8_t  arc_shost;
  88         u_int8_t  arc_dhost;
  89         u_int16_t arc_offset;
  90         u_int8_t  arc_type;
  91         /*
  92          * only present for newstyle encoding with LL fragmentation.
  93          * Don't use sizeof(anything), use ARC_LINUX_HDR{,NEW}LEN
  94          * instead.
  95          */
  96         u_int8_t  arc_flag;
  97         u_int16_t arc_seqid;
  98 };
  99
 100 #define ARC_LINUX_HDRLEN        5
 101 #define ARC_LINUX_HDRNEWLEN     8