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/* $NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp $ */
/* $FreeBSD: release/9.1.0/sys/net/if_arc.h 194581 2009-06-21 10:29:31Z rdivacky $ */
/*-
* Copyright (c) 1982, 1986, 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.
* 4. 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.
*
* from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp
* @(#)if_ether.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _NET_IF_ARC_H_
#define _NET_IF_ARC_H_
/*
* Arcnet address - 1 octets
* don't know who uses this.
*/
struct arc_addr {
u_int8_t arc_addr_octet[1];
} __packed;
/*
* Structure of a 2.5MB/s Arcnet header.
* as given to interface code.
*/
struct arc_header {
u_int8_t arc_shost;
u_int8_t arc_dhost;
u_int8_t arc_type;
/*
* only present for newstyle encoding with LL fragmentation.
* Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead.
*/
u_int8_t arc_flag;
u_int16_t arc_seqid;
/*
* only present in exception packets (arc_flag == 0xff)
*/
u_int8_t arc_type2; /* same as arc_type */
u_int8_t arc_flag2; /* real flag value */
u_int16_t arc_seqid2; /* real seqid value */
} __packed;
#define ARC_ADDR_LEN 1
#define ARC_HDRLEN 3
#define ARC_HDRNEWLEN 6
#define ARC_HDRNEWLEN_EXC 10
/* these lengths are data link layer length - 2 * ARC_ADDR_LEN */
#define ARC_MIN_LEN 1
#define ARC_MIN_FORBID_LEN 254
#define ARC_MAX_FORBID_LEN 256
#define ARC_MAX_LEN 508
#define ARC_MAX_DATA 504
/* RFC 1051 */
#define ARCTYPE_IP_OLD 240 /* IP protocol */
#define ARCTYPE_ARP_OLD 241 /* address resolution protocol */
/* RFC 1201 */
#define ARCTYPE_IP 212 /* IP protocol */
#define ARCTYPE_ARP 213 /* address resolution protocol */
#define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */
#define ARCTYPE_ATALK 221 /* Appletalk */
#define ARCTYPE_BANIAN 247 /* Banyan Vines */
#define ARCTYPE_IPX 250 /* Novell IPX */
#define ARCTYPE_INET6 0xc4 /* IPng */
#define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */
#define ARCMTU 507
#define ARCMIN 0
#define ARC_PHDS_MAXMTU 60480
struct arccom {
struct ifnet *ac_ifp; /* network-visible interface */
u_int16_t ac_seqid; /* seq. id used by PHDS encap. */
u_int8_t arc_shost;
u_int8_t arc_dhost;
u_int8_t arc_type;
u_int8_t dummy0;
u_int16_t dummy1;
int sflag, fsflag, rsflag;
struct mbuf *curr_frag;
struct ac_frag {
u_int8_t af_maxflag; /* from first packet */
u_int8_t af_lastseen; /* last split flag seen */
u_int16_t af_seqid;
struct mbuf *af_packet;
} ac_fragtab[256]; /* indexed by sender ll address */
};
#ifdef _KERNEL
extern u_int8_t arcbroadcastaddr;
extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */
void arc_ifattach(struct ifnet *, u_int8_t);
void arc_ifdetach(struct ifnet *);
void arc_storelladdr(struct ifnet *, u_int8_t);
int arc_isphds(u_int8_t);
void arc_input(struct ifnet *, struct mbuf *);
int arc_output(struct ifnet *, struct mbuf *,
struct sockaddr *, struct route *);
int arc_ioctl(struct ifnet *, u_long, caddr_t);
void arc_frag_init(struct ifnet *);
struct mbuf * arc_frag_next(struct ifnet *);
#endif
#endif /* _NET_IF_ARC_H_ */