if_llc.h

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    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
    7  * 
    8  * This file contains Original Code and/or Modifications of Original Code
    9  * as defined in and that are subject to the Apple Public Source License
   10  * Version 2.0 (the 'License'). You may not use this file except in
   11  * compliance with the License. Please obtain a copy of the License at
   12  * http://www.opensource.apple.com/apsl/ and read it before using this
   13  * file.
   14  * 
   15  * The Original Code and all software distributed under the License are
   16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   20  * Please see the License for the specific language governing rights and
   21  * limitations under the License.
   22  * 
   23  * @APPLE_LICENSE_HEADER_END@
   24  */
   25 /*
   26  * Copyright (c) 1988, 1993
   27  *      The Regents of the University of California.  All rights reserved.
   28  *
   29  * Redistribution and use in source and binary forms, with or without
   30  * modification, are permitted provided that the following conditions
   31  * are met:
   32  * 1. Redistributions of source code must retain the above copyright
   33  *    notice, this list of conditions and the following disclaimer.
   34  * 2. Redistributions in binary form must reproduce the above copyright
   35  *    notice, this list of conditions and the following disclaimer in the
   36  *    documentation and/or other materials provided with the distribution.
   37  * 3. All advertising materials mentioning features or use of this software
   38  *    must display the following acknowledgement:
   39  *      This product includes software developed by the University of
   40  *      California, Berkeley and its contributors.
   41  * 4. Neither the name of the University nor the names of its contributors
   42  *    may be used to endorse or promote products derived from this software
   43  *    without specific prior written permission.
   44  *
   45  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   48  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   55  * SUCH DAMAGE.
   56  *
   57  *      @(#)if_llc.h    8.1 (Berkeley) 6/10/93
   58  */
   59 
   60 #ifndef _NET_IF_LLC_H_
   61 #define _NET_IF_LLC_H_
   62 #include <sys/appleapiopts.h>
   63 
   64 /*
   65  * IEEE 802.2 Link Level Control headers, for use in conjunction with
   66  * 802.{3,4,5} media access control methods.
   67  *
   68  * Headers here do not use bit fields due to shortcomings in many
   69  * compilers.
   70  */
   71 
   72 struct llc {
   73         u_char  llc_dsap;
   74         u_char  llc_ssap;
   75         union {
   76             struct {
   77                 u_char control;
   78                 u_char format_id;
   79                 u_char class_id;
   80                 u_char window_x2;
   81             } type_u;
   82             struct {
   83                 u_char num_snd_x2;
   84                 u_char num_rcv_x2;
   85             } type_i;
   86             struct {
   87                 u_char control;
   88                 u_char num_rcv_x2;
   89             } type_s;
   90             struct {
   91                 u_char control;
   92                 struct frmrinfo {
   93                         u_char rej_pdu_0;
   94                         u_char rej_pdu_1;
   95                         u_char frmr_control;
   96                         u_char frmr_control_ext;
   97                         u_char frmr_cause;
   98                 } frmrinfo;
   99             } type_frmr;
  100             struct {
  101                 u_char control;
  102                 u_char org_code[3];
  103                 u_short ether_type;
  104             } type_snap;
  105             struct {
  106                 u_char control;
  107                 u_char control_ext;
  108             } type_raw;
  109         } llc_un;
  110 };
  111 #define llc_control            llc_un.type_u.control
  112 #define llc_control_ext        llc_un.type_raw.control_ext
  113 #define llc_fid                llc_un.type_u.format_id
  114 #define llc_class              llc_un.type_u.class_id
  115 #define llc_window             llc_un.type_u.window_x2
  116 #define llc_frmrinfo           llc_un.type_frmr.frmrinfo
  117 #define llc_frmr_pdu0          llc_un.type_frmr.frmrinfo.rej_pdu0
  118 #define llc_frmr_pdu1          llc_un.type_frmr.frmrinfo.rej_pdu1
  119 #define llc_frmr_control       llc_un.type_frmr.frmrinfo.frmr_control
  120 #define llc_frmr_control_ext   llc_un.type_frmr.frmrinfo.frmr_control_ext
  121 #define llc_frmr_cause         llc_un.type_frmr.frmrinfo.frmr_control_ext
  122 
  123 /*
  124  * Don't use sizeof(struct llc_un) for LLC header sizes
  125  */
  126 #define LLC_ISFRAMELEN 4
  127 #define LLC_UFRAMELEN  3
  128 #define LLC_FRMRLEN    7
  129 
  130 /*
  131  * Unnumbered LLC format commands
  132  */
  133 #define LLC_UI          0x3
  134 #define LLC_UI_P        0x13
  135 #define LLC_DISC        0x43
  136 #define LLC_DISC_P      0x53
  137 #define LLC_UA          0x63
  138 #define LLC_UA_P        0x73
  139 #define LLC_TEST        0xe3
  140 #define LLC_TEST_P      0xf3
  141 #define LLC_FRMR        0x87
  142 #define LLC_FRMR_P      0x97
  143 #define LLC_DM          0x0f
  144 #define LLC_DM_P        0x1f
  145 #define LLC_XID         0xaf
  146 #define LLC_XID_P       0xbf
  147 #define LLC_SABME       0x6f
  148 #define LLC_SABME_P     0x7f
  149 
  150 /*
  151  * Supervisory LLC commands
  152  */
  153 #define LLC_RR          0x01
  154 #define LLC_RNR         0x05
  155 #define LLC_REJ         0x09
  156 
  157 /*
  158  * Info format - dummy only
  159  */
  160 #define LLC_INFO        0x00
  161 
  162 /*
  163  * ISO PDTR 10178 contains among others
  164  */
  165 #define LLC_X25_LSAP    0x7e
  166 #define LLC_SNAP_LSAP   0xaa
  167 #define LLC_ISO_LSAP    0xfe
  168 
  169 #endif

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FreeBSD/Linux Kernel Cross Reference sys/bsd/net/if_llc.h

FreeBSD/Linux Kernel Cross Reference
sys/bsd/net/if_llc.h