1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. 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 * @(#) $Id: arcnet.h,v 1.3 2003/01/23 09:05:37 guy Exp $ (LBL) 34 * 35 * from: NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp 36 */ 37 38 /* 39 * Structure of a 2.5MB/s Arcnet header on the BSDs, 40 * as given to interface code. 41 */ 42 struct arc_header { 43 u_int8_t arc_shost; 44 u_int8_t arc_dhost; 45 u_int8_t arc_type; 46 /* 47 * only present for newstyle encoding with LL fragmentation. 48 * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead. 49 */ 50 u_int8_t arc_flag; 51 u_int16_t arc_seqid; 52 53 /* 54 * only present in exception packets (arc_flag == 0xff) 55 */ 56 u_int8_t arc_type2; /* same as arc_type */ 57 u_int8_t arc_flag2; /* real flag value */ 58 u_int16_t arc_seqid2; /* real seqid value */ 59 }; 60 61 #define ARC_HDRLEN 3 62 #define ARC_HDRNEWLEN 6 63 #define ARC_HDRNEWLEN_EXC 10 64 65 /* RFC 1051 */ 66 #define ARCTYPE_IP_OLD 240 /* IP protocol */ 67 #define ARCTYPE_ARP_OLD 241 /* address resolution protocol */ 68 69 /* RFC 1201 */ 70 #define ARCTYPE_IP 212 /* IP protocol */ 71 #define ARCTYPE_ARP 213 /* address resolution protocol */ 72 #define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */ 73 74 #define ARCTYPE_ATALK 221 /* Appletalk */ 75 #define ARCTYPE_BANIAN 247 /* Banyan Vines */ 76 #define ARCTYPE_IPX 250 /* Novell IPX */ 77 78 #define ARCTYPE_INET6 0xc4 /* IPng */ 79 #define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ 80 81 /* 82 * Structure of a 2.5MB/s Arcnet header on Linux. Linux has 83 * an extra "offset" field when given to interface code, and 84 * never presents packets that look like exception frames. 85 */ 86 struct arc_linux_header { 87 u_int8_t arc_shost; 88 u_int8_t arc_dhost; 89 u_int16_t arc_offset; 90 u_int8_t arc_type; 91 /* 92 * only present for newstyle encoding with LL fragmentation. 93 * Don't use sizeof(anything), use ARC_LINUX_HDR{,NEW}LEN 94 * instead. 95 */ 96 u_int8_t arc_flag; 97 u_int16_t arc_seqid; 98 }; 99 100 #define ARC_LINUX_HDRLEN 5 101 #define ARC_LINUX_HDRNEWLEN 8 102