1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * 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 * from: @(#)if_llc.h 7.2 (Berkeley) 6/28/90 34 * $Id: if_llc.h,v 1.3 1993/05/20 03:06:00 cgd Exp $ 35 */ 36 37 #ifndef _NET_IF_LLC_H_ 38 #define _NET_IF_LLC_H_ 39 40 /* 41 * IEEE 802.2 Link Level Control headers, for use in conjunction with 42 * 802.{3,4,5} media access control methods. 43 * 44 * Headers here do not use bit fields due to shortcommings in many 45 * compilers. 46 */ 47 48 struct llc { 49 u_char llc_dsap; 50 u_char llc_ssap; 51 union { 52 struct { 53 u_char control; 54 u_char format_id; 55 u_char class; 56 u_char window_x2; 57 } type_u; 58 struct { 59 u_char num_snd_x2; 60 u_char num_rcv_x2; 61 } type_i; 62 struct { 63 u_char control; 64 u_char num_rcv_x2; 65 } type_s; 66 struct { 67 u_char control; 68 u_char org_code[3]; 69 u_short ether_type; 70 } type_snap; 71 } llc_un; 72 }; 73 #define llc_control llc_un.type_u.control 74 #define llc_fid llc_un.type_u.format_id 75 #define llc_class llc_un.type_u.class 76 #define llc_window llc_un.type_u.window_x2 77 78 #define LLC_UI 0x3 79 #define LLC_UI_P 0x13 80 #define LLC_XID 0xaf 81 #define LLC_XID_P 0xbf 82 #define LLC_TEST 0xe3 83 #define LLC_TEST_P 0xf3 84 85 #define LLC_ISO_LSAP 0xfe 86 #define LLC_SNAP_LSAP 0xaa 87 88 #endif /* !_NET_IF_LLC_H_ */ 89