1 /* $NetBSD: if_arc.h,v 1.14 2002/05/13 23:50:32 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp 36 * @(#)if_ether.h 8.1 (Berkeley) 6/10/93 37 */ 38 39 #ifndef _NET_IF_ARC_H_ 40 #define _NET_IF_ARC_H_ 41 42 /* 43 * Arcnet address - 1 octets 44 * don't know who uses this. 45 */ 46 struct arc_addr { 47 u_int8_t arc_addr_octet[1]; 48 } __attribute__((__packed__)); 49 50 /* 51 * Structure of a 2.5MB/s Arcnet header. 52 * as given to interface code. 53 */ 54 struct arc_header { 55 u_int8_t arc_shost; 56 u_int8_t arc_dhost; 57 u_int8_t arc_type; 58 /* 59 * only present for newstyle encoding with LL fragmentation. 60 * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead. 61 */ 62 u_int8_t arc_flag; 63 u_int16_t arc_seqid; 64 65 /* 66 * only present in exception packets (arc_flag == 0xff) 67 */ 68 u_int8_t arc_type2; /* same as arc_type */ 69 u_int8_t arc_flag2; /* real flag value */ 70 u_int16_t arc_seqid2; /* real seqid value */ 71 } __attribute__((__packed__)); 72 73 #define ARC_ADDR_LEN 1 74 75 #define ARC_HDRLEN 3 76 #define ARC_HDRNEWLEN 6 77 #define ARC_HDRNEWLEN_EXC 10 78 79 /* these lengths are data link layer length - 2*ARC_ADDR_LEN */ 80 #define ARC_MIN_LEN 1 81 #define ARC_MIN_FORBID_LEN 254 82 #define ARC_MAX_FORBID_LEN 256 83 #define ARC_MAX_LEN 508 84 85 86 /* RFC 1051 */ 87 #define ARCTYPE_IP_OLD 240 /* IP protocol */ 88 #define ARCTYPE_ARP_OLD 241 /* address resolution protocol */ 89 90 /* RFC 1201 */ 91 #define ARCTYPE_IP 212 /* IP protocol */ 92 #define ARCTYPE_ARP 213 /* address resolution protocol */ 93 #define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */ 94 95 #define ARCTYPE_ATALK 221 /* Appletalk */ 96 #define ARCTYPE_BANIAN 247 /* Banyan Vines */ 97 #define ARCTYPE_IPX 250 /* Novell IPX */ 98 99 #define ARCTYPE_INET6 0xc4 /* IPng */ 100 #define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ 101 102 #define ARCMTU 507 103 #define ARCMIN 0 104 105 #define ARC_PHDS_MAXMTU 60480 106 107 struct arccom { 108 struct ifnet ac_if; /* network-visible interface */ 109 110 u_int16_t ac_seqid; /* seq. id used by PHDS encap. */ 111 112 struct ac_frag { 113 u_int8_t af_maxflag; /* from first packet */ 114 u_int8_t af_lastseen; /* last split flag seen */ 115 u_int16_t af_seqid; 116 struct mbuf *af_packet; 117 } ac_fragtab[256]; /* indexed by sender ll address */ 118 119 }; 120 121 #ifdef _KERNEL 122 extern u_int8_t arcbroadcastaddr; 123 extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */ 124 125 void arc_ifattach __P((struct ifnet *, u_int8_t)); 126 void arc_storelladdr __P((struct ifnet *, u_int8_t)); 127 char *arc_sprintf __P((u_int8_t *)); 128 int arc_isphds __P((int)); 129 #endif 130 131 #endif /* _NET_IF_ARC_H_ */ 132