1 /* $NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp $ */ 2 /* $FreeBSD$ */ 3 4 /*- 5 * Copyright (c) 1982, 1986, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp 33 * @(#)if_ether.h 8.1 (Berkeley) 6/10/93 34 */ 35 36 #ifndef _NET_IF_ARC_H_ 37 #define _NET_IF_ARC_H_ 38 39 /* 40 * Arcnet address - 1 octets 41 * don't know who uses this. 42 */ 43 struct arc_addr { 44 u_int8_t arc_addr_octet[1]; 45 } __packed; 46 47 /* 48 * Structure of a 2.5MB/s Arcnet header. 49 * as given to interface code. 50 */ 51 struct arc_header { 52 u_int8_t arc_shost; 53 u_int8_t arc_dhost; 54 u_int8_t arc_type; 55 /* 56 * only present for newstyle encoding with LL fragmentation. 57 * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead. 58 */ 59 u_int8_t arc_flag; 60 u_int16_t arc_seqid; 61 62 /* 63 * only present in exception packets (arc_flag == 0xff) 64 */ 65 u_int8_t arc_type2; /* same as arc_type */ 66 u_int8_t arc_flag2; /* real flag value */ 67 u_int16_t arc_seqid2; /* real seqid value */ 68 } __packed; 69 70 #define ARC_ADDR_LEN 1 71 72 #define ARC_HDRLEN 3 73 #define ARC_HDRNEWLEN 6 74 #define ARC_HDRNEWLEN_EXC 10 75 76 /* these lengths are data link layer length - 2 * ARC_ADDR_LEN */ 77 #define ARC_MIN_LEN 1 78 #define ARC_MIN_FORBID_LEN 254 79 #define ARC_MAX_FORBID_LEN 256 80 #define ARC_MAX_LEN 508 81 #define ARC_MAX_DATA 504 82 83 /* RFC 1051 */ 84 #define ARCTYPE_IP_OLD 240 /* IP protocol */ 85 #define ARCTYPE_ARP_OLD 241 /* address resolution protocol */ 86 87 /* RFC 1201 */ 88 #define ARCTYPE_IP 212 /* IP protocol */ 89 #define ARCTYPE_ARP 213 /* address resolution protocol */ 90 #define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */ 91 92 #define ARCTYPE_ATALK 221 /* Appletalk */ 93 #define ARCTYPE_BANIAN 247 /* Banyan Vines */ 94 #define ARCTYPE_IPX 250 /* Novell IPX */ 95 96 #define ARCTYPE_INET6 0xc4 /* IPng */ 97 #define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ 98 99 #define ARCMTU 507 100 #define ARCMIN 0 101 102 #define ARC_PHDS_MAXMTU 60480 103 104 struct arccom { 105 struct ifnet *ac_ifp; /* network-visible interface */ 106 107 u_int16_t ac_seqid; /* seq. id used by PHDS encap. */ 108 109 u_int8_t arc_shost; 110 u_int8_t arc_dhost; 111 u_int8_t arc_type; 112 113 u_int8_t dummy0; 114 u_int16_t dummy1; 115 int sflag, fsflag, rsflag; 116 struct mbuf *curr_frag; 117 118 struct ac_frag { 119 u_int8_t af_maxflag; /* from first packet */ 120 u_int8_t af_lastseen; /* last split flag seen */ 121 u_int16_t af_seqid; 122 struct mbuf *af_packet; 123 } ac_fragtab[256]; /* indexed by sender ll address */ 124 }; 125 126 #ifdef _KERNEL 127 extern u_int8_t arcbroadcastaddr; 128 extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */ 129 130 void arc_ifattach(struct ifnet *, u_int8_t); 131 void arc_ifdetach(struct ifnet *); 132 void arc_storelladdr(struct ifnet *, u_int8_t); 133 int arc_isphds(u_int8_t); 134 void arc_input(struct ifnet *, struct mbuf *); 135 int arc_output(struct ifnet *, struct mbuf *, 136 const struct sockaddr *, struct route *); 137 int arc_ioctl(struct ifnet *, u_long, caddr_t); 138 139 void arc_frag_init(struct ifnet *); 140 struct mbuf * arc_frag_next(struct ifnet *); 141 #endif 142 143 #endif /* _NET_IF_ARC_H_ */ 144