88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/*
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* Copyright (c) 1988 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_llc.h 7.2 (Berkeley) 6/28/90
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*/
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#ifndef _NET_IF_LLC_H_
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#define _NET_IF_LLC_H_
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/*
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* IEEE 802.2 Link Level Control headers, for use in conjunction with
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* 802.{3,4,5} media access control methods.
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*
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* Headers here do not use bit fields due to shortcommings in many
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* compilers.
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*/
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struct llc {
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u_char llc_dsap;
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u_char llc_ssap;
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union {
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struct {
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u_char control;
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u_char format_id;
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u_char class;
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u_char window_x2;
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} type_u;
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struct {
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u_char num_snd_x2;
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u_char num_rcv_x2;
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} type_i;
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struct {
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u_char control;
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u_char num_rcv_x2;
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} type_s;
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struct {
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u_char control;
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u_char org_code[3];
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u_short ether_type;
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} type_snap;
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} llc_un;
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};
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#define llc_control llc_un.type_u.control
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#define llc_fid llc_un.type_u.format_id
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#define llc_class llc_un.type_u.class
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#define llc_window llc_un.type_u.window_x2
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#define LLC_UI 0x3
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#define LLC_UI_P 0x13
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#define LLC_XID 0xaf
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#define LLC_XID_P 0xbf
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#define LLC_TEST 0xe3
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#define LLC_TEST_P 0xf3
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#define LLC_ISO_LSAP 0xfe
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#define LLC_SNAP_LSAP 0xaa
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#endif /* !_NET_IF_LLC_H_ */
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