1 /* $NetBSD: if_arc.h,v 1.23 2017/10/23 09:22:24 msaitoh 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp 32 * @(#)if_ether.h 8.1 (Berkeley) 6/10/93 33 */ 34 35 #ifndef _NET_IF_ARC_H_ 36 #define _NET_IF_ARC_H_ 37 38 /* 39 * Arcnet address - 1 octets 40 * don't know who uses this. 41 */ 42 struct arc_addr { 43 uint8_t arc_addr_octet[1]; 44 } __packed; 45 46 /* 47 * Structure of a 2.5MB/s Arcnet header. 48 * as given to interface code. 49 */ 50 struct arc_header { 51 uint8_t arc_shost; 52 uint8_t arc_dhost; 53 uint8_t arc_type; 54 /* 55 * only present for newstyle encoding with LL fragmentation. 56 * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead. 57 */ 58 uint8_t arc_flag; 59 uint16_t arc_seqid; 60 61 /* 62 * only present in exception packets (arc_flag == 0xff) 63 */ 64 uint8_t arc_type2; /* same as arc_type */ 65 uint8_t arc_flag2; /* real flag value */ 66 uint16_t arc_seqid2; /* real seqid value */ 67 } __packed; 68 69 #define ARC_ADDR_LEN 1 70 71 #define ARC_HDRLEN 3 72 #define ARC_HDRNEWLEN 6 73 #define ARC_HDRNEWLEN_EXC 10 74 75 /* these lengths are data link layer length - 2*ARC_ADDR_LEN */ 76 #define ARC_MIN_LEN 1 77 #define ARC_MIN_FORBID_LEN 254 78 #define ARC_MAX_FORBID_LEN 256 79 #define ARC_MAX_LEN 508 80 81 82 /* RFC 1051 */ 83 #define ARCTYPE_IP_OLD 240 /* IP protocol */ 84 #define ARCTYPE_ARP_OLD 241 /* address resolution protocol */ 85 86 /* RFC 1201 */ 87 #define ARCTYPE_IP 212 /* IP protocol */ 88 #define ARCTYPE_ARP 213 /* address resolution protocol */ 89 #define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */ 90 91 #define ARCTYPE_ATALK 221 /* Appletalk */ 92 #define ARCTYPE_BANIAN 247 /* Banyan Vines */ 93 #define ARCTYPE_IPX 250 /* Novell IPX */ 94 95 #define ARCTYPE_INET6 0xc4 /* IPng */ 96 #define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ 97 98 #define ARCMTU 507 99 #define ARCMIN 0 100 101 #define ARC_PHDS_MAXMTU 60480 102 103 struct arccom { 104 struct ifnet ac_if; /* network-visible interface */ 105 106 uint16_t ac_seqid; /* seq. id used by PHDS encap. */ 107 108 struct ac_frag { 109 uint8_t af_maxflag; /* from first packet */ 110 uint8_t af_lastseen; /* last split flag seen */ 111 uint16_t af_seqid; 112 struct mbuf *af_packet; 113 } ac_fragtab[256]; /* indexed by sender ll address */ 114 115 }; 116 117 #ifdef _KERNEL 118 extern uint8_t arcbroadcastaddr; 119 extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */ 120 121 int arc_ifattach(struct ifnet *, uint8_t); 122 char *arc_sprintf(uint8_t *); 123 int arc_isphds(uint8_t); 124 #endif 125 126 #endif /* !_NET_IF_ARC_H_ */ 127