tcpdump.tproj/llc.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Copyright (c) 1993, 1994
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that: (1) source code distributions
  30  * retain the above copyright notice and this paragraph in its entirety, (2)
  31  * distributions including binary code include the above copyright notice and
  32  * this paragraph in its entirety in the documentation or other materials
  33  * provided with the distribution, and (3) all advertising materials mentioning
  34  * features or use of this software display the following acknowledgement:
  35  * ``This product includes software developed by the University of California,
  36  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  37  * the University nor the names of its contributors may be used to endorse
  38  * or promote products derived from this software without specific prior
  39  * written permission.
  40  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  41  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  42  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  43  *
  44  * @(#) $Header: /cvs/Darwin/Commands/NeXT/network_cmds/tcpdump.tproj/llc.h,v 1.1.1.1 1999/05/02 03:58:32 wsanchez Exp $ (LBL)
  45  */
  46
  47 /*
  48  * This stuff should come from a system header file, but there's no
  49  * obviously portable way to do that and it's not really going
  50  * to change from system to system.
  51  */
  52
  53 /*
  54  * A somewhat abstracted view of the LLC header
  55  */
  56
  57 struct llc {
  58         u_char dsap;
  59         u_char ssap;
  60         union {
  61                 u_char u_ctl;
  62                 u_short is_ctl;
  63                 struct {
  64                         u_char snap_ui;
  65                         u_char snap_pi[5];
  66                 } snap;
  67                 struct {
  68                         u_char snap_ui;
  69                         u_char snap_orgcode[3];
  70                         u_char snap_ethertype[2];
  71                 } snap_ether;
  72         } ctl;
  73 };
  74
  75 #define llcui           ctl.snap.snap_ui
  76 #define llcpi           ctl.snap.snap_pi
  77 #define orgcode         ctl.snap_ether.snap_orgcode
  78 #define ethertype       ctl.snap_ether.snap_ethertype
  79 #define llcis           ctl.is_ctl
  80 #define llcu            ctl.u_ctl
  81
  82 #define LLC_U_FMT       3
  83 #define LLC_GSAP        1
  84 #define LLC_S_FMT       1
  85
  86 #define LLC_U_POLL      0x10
  87 #define LLC_IS_POLL     0x0001
  88 #define LLC_XID_FI      0x81
  89
  90 #define LLC_U_CMD(u)    ((u) & 0xef)
  91 #define LLC_UI          0x03
  92 #define LLC_UA          0x63
  93 #define LLC_DISC        0x43
  94 #define LLC_DM          0x0f
  95 #define LLC_SABME       0x6f
  96 #define LLC_TEST        0xe3
  97 #define LLC_XID         0xaf
  98 #define LLC_FRMR        0x87
  99
 100 #define LLC_S_CMD(is)   (((is) >> 10) & 0x03)
 101 #define LLC_RR          0x0100
 102 #define LLC_RNR         0x0500
 103 #define LLC_REJ         0x0900
 104
 105 #define LLC_IS_NR(is)   (((is) >> 9) & 0x7f)
 106 #define LLC_I_NS(is)    (((is) >> 1) & 0x7f)
 107
 108 #ifndef LLCSAP_NULL
 109 #define LLCSAP_NULL             0x00
 110 #endif
 111 #ifndef LLCSAP_GLOBAL
 112 #define LLCSAP_GLOBAL           0xff
 113 #endif
 114 #ifndef LLCSAP_8021B
 115 #define LLCSAP_8021B_I          0x02
 116 #endif
 117 #ifndef LLCSAP_8021B
 118 #define LLCSAP_8021B_G          0x03
 119 #endif
 120 #ifndef LLCSAP_IP
 121 #define LLCSAP_IP               0x06
 122 #endif
 123 #ifndef LLCSAP_PROWAYNM
 124 #define LLCSAP_PROWAYNM         0x0e
 125 #endif
 126 #ifndef LLCSAP_8021D
 127 #define LLCSAP_8021D            0x42
 128 #endif
 129 #ifndef LLCSAP_RS511
 130 #define LLCSAP_RS511            0x4e
 131 #endif
 132 #ifndef LLCSAP_ISO8208
 133 #define LLCSAP_ISO8208          0x7e
 134 #endif
 135 #ifndef LLCSAP_PROWAY
 136 #define LLCSAP_PROWAY           0x8e
 137 #endif
 138 #ifndef LLCSAP_SNAP
 139 #define LLCSAP_SNAP             0xaa
 140 #endif
 141 #ifndef LLCSAP_ISONS
 142 #define LLCSAP_ISONS            0xfe
 143 #endif