dist/tcpdump/arcnet.h

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