/* * Copyright (c) 2000,2009 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)if_llc.h 8.1 (Berkeley) 6/10/93 */ #ifndef _NET_IF_LLC_H_ #define _NET_IF_LLC_H_ #include <sys/appleapiopts.h> /* * IEEE 802.2 Link Level Control headers, for use in conjunction with * 802.{3,4,5} media access control methods. * * Headers here do not use bit fields due to shortcomings in many * compilers. */ struct llc { u_int8_t llc_dsap; u_int8_t llc_ssap; union { struct { u_int8_t control; u_int8_t format_id; u_int8_t class_id; u_int8_t window_x2; } type_u; struct { u_int8_t num_snd_x2; u_int8_t num_rcv_x2; } type_i; struct { u_int8_t control; u_int8_t num_rcv_x2; } type_s; struct { u_int8_t control; /* * We cannot put the following fields in a structure because * the structure rounding might cause padding. */ u_int8_t frmr_rej_pdu0; u_int8_t frmr_rej_pdu1; u_int8_t frmr_control; u_int8_t frmr_control_ext; u_int8_t frmr_cause; } type_frmr; struct { u_int8_t control; u_int8_t org_code[3]; u_int16_t ether_type; } type_snap __attribute__((__packed__)); struct { u_int8_t control; u_int8_t control_ext; } type_raw; } llc_un; } __attribute__((__packed__)); struct frmrinfo { u_int8_t frmr_rej_pdu0; u_int8_t frmr_rej_pdu1; u_int8_t frmr_control; u_int8_t frmr_control_ext; u_int8_t frmr_cause; } __attribute__((__packed__)); #define llc_control llc_un.type_u.control #define llc_control_ext llc_un.type_raw.control_ext #define llc_fid llc_un.type_u.format_id #define llc_class llc_un.type_u.class #define llc_window llc_un.type_u.window_x2 #define llc_frmrinfo llc_un.type_frmr.frmr_rej_pdu0 #define llc_frmr_pdu0 llc_un.type_frmr.frmr_rej_pdu0 #define llc_frmr_pdu1 llc_un.type_frmr.frmr_rej_pdu1 #define llc_frmr_control llc_un.type_frmr.frmr_control #define llc_frmr_control_ext llc_un.type_frmr.frmr_control_ext #define llc_frmr_cause llc_un.type_frmr.frmr_cause #define llc_snap llc_un.type_snap /* * Don't use sizeof(struct llc_un) for LLC header sizes */ #define LLC_ISFRAMELEN 4 #define LLC_UFRAMELEN 3 #define LLC_FRMRLEN 7 #define LLC_SNAPFRAMELEN 8 /* * Unnumbered LLC format commands */ #define LLC_UI 0x3 #define LLC_UI_P 0x13 #define LLC_DISC 0x43 #define LLC_DISC_P 0x53 #define LLC_UA 0x63 #define LLC_UA_P 0x73 #define LLC_TEST 0xe3 #define LLC_TEST_P 0xf3 #define LLC_FRMR 0x87 #define LLC_FRMR_P 0x97 #define LLC_DM 0x0f #define LLC_DM_P 0x1f #define LLC_XID 0xaf #define LLC_XID_P 0xbf #define LLC_SABME 0x6f #define LLC_SABME_P 0x7f /* * Supervisory LLC commands */ #define LLC_RR 0x01 #define LLC_RNR 0x05 #define LLC_REJ 0x09 /* * Info format - dummy only */ #define LLC_INFO 0x00 /* * ISO PDTR 10178 contains among others */ #define LLC_8021D_LSAP 0x42 #define LLC_X25_LSAP 0x7e #define LLC_SNAP_LSAP 0xaa #define LLC_ISO_LSAP 0xfe /* * LLC XID definitions from 802.2, as needed */ #define LLC_XID_FORMAT_BASIC 0x81 #define LLC_XID_BASIC_MINLEN (LLC_UFRAMELEN + 3) #define LLC_XID_CLASS_I 0x1 #define LLC_XID_CLASS_II 0x3 #define LLC_XID_CLASS_III 0x5 #define LLC_XID_CLASS_IV 0x7 #endif /* !_NET_IF_LLC_H_ */