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fc74a9f93a
struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
144 lines
4.4 KiB
C
144 lines
4.4 KiB
C
/* $NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp $ */
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/* $FreeBSD$ */
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/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp
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* @(#)if_ether.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _NET_IF_ARC_H_
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#define _NET_IF_ARC_H_
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/*
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* Arcnet address - 1 octets
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* don't know who uses this.
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*/
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struct arc_addr {
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u_int8_t arc_addr_octet[1];
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} __packed;
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/*
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* Structure of a 2.5MB/s Arcnet header.
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* as given to interface code.
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*/
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struct arc_header {
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u_int8_t arc_shost;
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u_int8_t arc_dhost;
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u_int8_t arc_type;
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/*
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* only present for newstyle encoding with LL fragmentation.
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* Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead.
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*/
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u_int8_t arc_flag;
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u_int16_t arc_seqid;
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/*
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* only present in exception packets (arc_flag == 0xff)
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*/
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u_int8_t arc_type2; /* same as arc_type */
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u_int8_t arc_flag2; /* real flag value */
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u_int16_t arc_seqid2; /* real seqid value */
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} __packed;
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#define ARC_ADDR_LEN 1
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#define ARC_HDRLEN 3
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#define ARC_HDRNEWLEN 6
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#define ARC_HDRNEWLEN_EXC 10
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/* these lengths are data link layer length - 2 * ARC_ADDR_LEN */
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#define ARC_MIN_LEN 1
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#define ARC_MIN_FORBID_LEN 254
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#define ARC_MAX_FORBID_LEN 256
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#define ARC_MAX_LEN 508
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#define ARC_MAX_DATA 504
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/* RFC 1051 */
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#define ARCTYPE_IP_OLD 240 /* IP protocol */
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#define ARCTYPE_ARP_OLD 241 /* address resolution protocol */
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/* RFC 1201 */
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#define ARCTYPE_IP 212 /* IP protocol */
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#define ARCTYPE_ARP 213 /* address resolution protocol */
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#define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */
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#define ARCTYPE_ATALK 221 /* Appletalk */
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#define ARCTYPE_BANIAN 247 /* Banyan Vines */
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#define ARCTYPE_IPX 250 /* Novell IPX */
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#define ARCTYPE_INET6 0xc4 /* IPng */
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#define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */
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#define ARCMTU 507
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#define ARCMIN 0
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#define ARC_PHDS_MAXMTU 60480
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struct arccom {
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struct ifnet *ac_ifp; /* network-visible interface */
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u_int16_t ac_seqid; /* seq. id used by PHDS encap. */
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u_int8_t arc_shost;
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u_int8_t arc_dhost;
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u_int8_t arc_type;
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u_int8_t dummy0;
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u_int16_t dummy1;
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int sflag, fsflag, rsflag;
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struct mbuf *curr_frag;
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struct ac_frag {
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u_int8_t af_maxflag; /* from first packet */
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u_int8_t af_lastseen; /* last split flag seen */
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u_int16_t af_seqid;
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struct mbuf *af_packet;
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} ac_fragtab[256]; /* indexed by sender ll address */
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};
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#ifdef _KERNEL
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extern u_int8_t arcbroadcastaddr;
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extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */
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void arc_ifattach(struct ifnet *, u_int8_t);
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void arc_ifdetach(struct ifnet *);
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void arc_storelladdr(struct ifnet *, u_int8_t);
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int arc_isphds(int);
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void arc_input(struct ifnet *, struct mbuf *);
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int arc_output(struct ifnet *, struct mbuf *,
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struct sockaddr *, struct rtentry *);
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int arc_ioctl(struct ifnet *, int, caddr_t);
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void arc_frag_init(struct ifnet *);
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struct mbuf * arc_frag_next(struct ifnet *);
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#endif
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#endif /* _NET_IF_ARC_H_ */
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