1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * Copyright (c) 1988, 1993 30 * The Regents of the University of California. All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by the University of 43 * California, Berkeley and its contributors. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)if_llc.h 8.1 (Berkeley) 6/10/93 61 */ 62 63#ifndef _NET_IF_LLC_H_ 64#define _NET_IF_LLC_H_ 65#include <sys/appleapiopts.h> 66 67/* 68 * IEEE 802.2 Link Level Control headers, for use in conjunction with 69 * 802.{3,4,5} media access control methods. 70 * 71 * Headers here do not use bit fields due to shortcomings in many 72 * compilers. 73 */ 74 75struct llc { 76 u_char llc_dsap; 77 u_char llc_ssap; 78 union { 79 struct { 80 u_char control; 81 u_char format_id; 82 u_char class_id; 83 u_char window_x2; 84 } type_u; 85 struct { 86 u_char num_snd_x2; 87 u_char num_rcv_x2; 88 } type_i; 89 struct { 90 u_char control; 91 u_char num_rcv_x2; 92 } type_s; 93 struct { 94 u_char control; 95 struct frmrinfo { 96 u_char rej_pdu_0; 97 u_char rej_pdu_1; 98 u_char frmr_control; 99 u_char frmr_control_ext; 100 u_char frmr_cause; 101 } frmrinfo; 102 } type_frmr; 103 struct { 104 u_char control; 105 u_char org_code[3]; 106 u_short ether_type; 107 } type_snap; 108 struct { 109 u_char control; 110 u_char control_ext; 111 } type_raw; 112 } llc_un; 113}; 114#define llc_control llc_un.type_u.control 115#define llc_control_ext llc_un.type_raw.control_ext 116#define llc_fid llc_un.type_u.format_id 117#define llc_class llc_un.type_u.class_id 118#define llc_window llc_un.type_u.window_x2 119#define llc_frmrinfo llc_un.type_frmr.frmrinfo 120#define llc_frmr_pdu0 llc_un.type_frmr.frmrinfo.rej_pdu0 121#define llc_frmr_pdu1 llc_un.type_frmr.frmrinfo.rej_pdu1 122#define llc_frmr_control llc_un.type_frmr.frmrinfo.frmr_control 123#define llc_frmr_control_ext llc_un.type_frmr.frmrinfo.frmr_control_ext 124#define llc_frmr_cause llc_un.type_frmr.frmrinfo.frmr_control_ext 125 126/* 127 * Don't use sizeof(struct llc_un) for LLC header sizes 128 */ 129#define LLC_ISFRAMELEN 4 130#define LLC_UFRAMELEN 3 131#define LLC_FRMRLEN 7 132 133/* 134 * Unnumbered LLC format commands 135 */ 136#define LLC_UI 0x3 137#define LLC_UI_P 0x13 138#define LLC_DISC 0x43 139#define LLC_DISC_P 0x53 140#define LLC_UA 0x63 141#define LLC_UA_P 0x73 142#define LLC_TEST 0xe3 143#define LLC_TEST_P 0xf3 144#define LLC_FRMR 0x87 145#define LLC_FRMR_P 0x97 146#define LLC_DM 0x0f 147#define LLC_DM_P 0x1f 148#define LLC_XID 0xaf 149#define LLC_XID_P 0xbf 150#define LLC_SABME 0x6f 151#define LLC_SABME_P 0x7f 152 153/* 154 * Supervisory LLC commands 155 */ 156#define LLC_RR 0x01 157#define LLC_RNR 0x05 158#define LLC_REJ 0x09 159 160/* 161 * Info format - dummy only 162 */ 163#define LLC_INFO 0x00 164 165/* 166 * ISO PDTR 10178 contains among others 167 */ 168#define LLC_X25_LSAP 0x7e 169#define LLC_SNAP_LSAP 0xaa 170#define LLC_ISO_LSAP 0xfe 171 172#endif 173