World, I'd like you to meet the first FreeBSD token Ring driver.

This  is for various Olicom cards. An IBM driver is following.
This patch also adds support to tcpdump to decode packets on tokenring.
Congratulations to the proud father.. (below)

Submitted by:	Larry Lile <lile@stdio.com>

4 files changed, 508 insertions, 5 deletions

diff --git a/sys/net/if_arp.h b/sys/net/if_arp.h
index 17439ff..e33abae 100644
--- a/sys/net/if_arp.h
+++ b/sys/net/if_arp.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)if_arp.h	8.1 (Berkeley) 6/10/93
- * $Id: if_arp.h,v 1.9 1998/01/08 23:41:18 eivind Exp $
+ * $Id: if_arp.h,v 1.10 1998/01/10 07:29:10 bde Exp $
  */
 
 #ifndef _NET_IF_ARP_H_
@@ -50,6 +50,7 @@
 struct	arphdr {
 	u_short	ar_hrd;		/* format of hardware address */
 #define ARPHRD_ETHER 	1	/* ethernet hardware format */
+#define ARPHRD_IEEE802	6	/* token-ring hardware format */
 #define ARPHRD_FRELAY 	15	/* frame relay hardware format */
 	u_short	ar_pro;		/* format of protocol address */
 	u_char	ar_hln;		/* length of hardware address */
diff --git a/sys/net/if_iso88025subr.c b/sys/net/if_iso88025subr.c
new file mode 100644
index 0000000..087f9a0
--- /dev/null
+++ b/sys/net/if_iso88025subr.c
@@ -0,0 +1,384 @@
+/*
+ * Copyright (c) 1998, Larry Lile
+ * All rights reserved.
+ *
+ * For latest sources and information on this driver, please
+ * go to http://anarchy.stdio.com.
+ *
+ * Questions, comments or suggestions should be directed to
+ * Larry Lile <lile@stdio.com>.
+ * 
+ * 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 unmodified, 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $Id: if_iso88025subr.c,v 1.5 1999/01/09 22:45:58 lile Exp $
+ *
+ */
+
+/*
+ *
+ * General ISO 802.5 (Token Ring) support routines
+ * 
+ */
+
+#include "opt_inet.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/sockio.h> 
+#include <sys/sysctl.h>
+
+#include <net/if.h>
+#include <net/netisr.h>
+#include <net/route.h>
+#include <net/if_llc.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+
+#include <net/if_arp.h>
+
+#include <net/iso88025.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+#include <netinet/if_ether.h>
+#endif
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#include <net/bpfdesc.h>
+#endif
+
+#include <machine/clock.h>
+#include <machine/md_var.h>
+
+#include <i386/isa/isa_device.h>
+
+#include <vm/vm.h>
+#include <vm/vm_param.h>
+#include <vm/pmap.h>
+
+#include <sys/kernel.h>
+#include <net/iso88025.h>
+
+void
+iso88025_ifattach(ifp)
+    register struct ifnet *ifp;
+{
+    register struct ifaddr *ifa = NULL;
+    register struct sockaddr_dl *sdl;
+
+    ifp->if_type = IFT_ISO88025;
+    ifp->if_addrlen = 6;
+    ifp->if_hdrlen=18;
+    if (ifp->if_baudrate == 0)
+        ifp->if_baudrate = 16000000; /* 1, 4, or 16Mbit default? */
+    if (ifp->if_mtu == 0)
+        ifp->if_mtu = ISO88025_DEFAULT_MTU;
+
+        ifa = ifnet_addrs[ifp->if_index - 1];
+        if (ifa == 0) {
+                printf("iso88025_ifattach: no lladdr!\n");
+                return;
+        }
+        sdl = (struct sockaddr_dl *)ifa->ifa_addr;
+        sdl->sdl_type = IFT_ISO88025;
+        sdl->sdl_alen = ifp->if_addrlen;
+        bcopy(((struct arpcom *)ifp)->ac_enaddr, LLADDR(sdl), ifp->if_addrlen);
+}
+
+int
+iso88025_ioctl(struct ifnet *ifp, int command, caddr_t data)
+{
+        struct ifaddr *ifa = (struct ifaddr *) data;
+        struct ifreq *ifr = (struct ifreq *) data;
+        int error = 0;
+
+        switch (command) {
+        case SIOCSIFADDR:
+                ifp->if_flags |= IFF_UP;
+
+                switch (ifa->ifa_addr->sa_family) {
+#ifdef INET
+                case AF_INET:
+                        ifp->if_init(ifp->if_softc);    /* before arpwhohas */
+                        arp_ifinit((struct arpcom *)ifp, ifa);
+                        break;
+#endif
+                default:
+                        ifp->if_init(ifp->if_softc);
+                        break;
+                }
+                break;
+
+        case SIOCGIFADDR:
+                {
+                        struct sockaddr *sa;
+
+                        sa = (struct sockaddr *) & ifr->ifr_data;
+                        bcopy(((struct arpcom *)ifp->if_softc)->ac_enaddr,
+                              (caddr_t) sa->sa_data, ISO88025_ADDR_LEN);
+                }
+                break;
+
+        case SIOCSIFMTU:
+                /*
+                 * Set the interface MTU.
+                 */
+                if (ifr->ifr_mtu > ISO88025MTU) {
+                        error = EINVAL;
+                } else {
+                        ifp->if_mtu = ifr->ifr_mtu;
+                }
+                break;
+        }
+        return (error);
+}
+
+/*
+ * ISO88025 encapsulation
+ */
+int
+iso88025_output(ifp, m0, dst, rt0)
+	register struct ifnet *ifp;
+	struct mbuf *m0;
+	struct sockaddr *dst;
+	struct rtentry *rt0;
+{
+        register struct ether_header *eh;  /* Needed for AF_UNSPEC XXX */
+	register struct iso88025_header *th;
+        register struct llc *l;
+	short type;
+        int s, error = 0;
+ 	u_char edst[6];
+	register struct mbuf *m = m0;
+	register struct rtentry *rt;
+	struct mbuf *mcopy = (struct mbuf *)0;
+	int off, len = m->m_pkthdr.len, loop_copy = 0;
+	struct arpcom *ac = (struct arpcom *)ifp;
+
+	if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
+		senderr(ENETDOWN);
+	rt = rt0;
+	if (rt) {
+		if ((rt->rt_flags & RTF_UP) == 0) {
+			rt0 = rt = rtalloc1(dst, 1, 0UL);
+			if (rt0)
+				rt->rt_refcnt--;
+			else
+				senderr(EHOSTUNREACH);
+		}
+		if (rt->rt_flags & RTF_GATEWAY) {
+			if (rt->rt_gwroute == 0)
+				goto lookup;
+			if (((rt = rt->rt_gwroute)->rt_flags & RTF_UP) == 0) {
+				rtfree(rt); rt = rt0;
+			lookup: rt->rt_gwroute = rtalloc1(rt->rt_gateway, 1,
+							  0UL);
+				if ((rt = rt->rt_gwroute) == 0)
+					senderr(EHOSTUNREACH);
+			}
+		}
+		if (rt->rt_flags & RTF_REJECT)
+			if (rt->rt_rmx.rmx_expire == 0 ||
+			    time_second < rt->rt_rmx.rmx_expire)
+				senderr(rt == rt0 ? EHOSTDOWN : EHOSTUNREACH);
+	}
+	switch (dst->sa_family) {
+
+#ifdef INET
+	case AF_INET:
+           /*printf("%s%d: iso88025_output (AF_INET).\n", ifp->if_name, ifp->if_unit);*/
+		if (!arpresolve(ac, rt, m, dst, edst, rt0))
+			return (0);	/* if not yet resolved */
+		off = m->m_pkthdr.len - m->m_len;
+		type = htons(ETHERTYPE_IP);
+		break;
+#endif
+
+	case AF_UNSPEC:
+                /*printf("%s%d: iso88025_output (AF_UNSPEC).\n", ifp->if_name, ifp->if_unit);*/
+                loop_copy = -1;
+		eh = (struct ether_header *)dst->sa_data;
+ 		(void)memcpy(edst, eh->ether_dhost, sizeof (edst));
+		type = eh->ether_type;
+		break;
+
+	default:
+		printf("%s%d: can't handle af%d\n", ifp->if_name, ifp->if_unit,
+			dst->sa_family);
+		senderr(EAFNOSUPPORT);
+	}
+
+	/*
+	 * Add local net header.  If no space in first mbuf,
+	 * allocate another.
+	 */
+	M_PREPEND(m, ISO88025_HDR_LEN + 8, M_DONTWAIT);
+	if (m == 0)
+		senderr(ENOBUFS);
+	th = mtod(m, struct iso88025_header *);
+        th->ac = 0x10;
+        th->fc = 0x40;
+        m->m_data += ISO88025_HDR_LEN;
+        l = mtod(m , struct llc *);
+        m->m_data -= ISO88025_HDR_LEN;
+	(void)memcpy(&l->llc_un.type_snap.ether_type, &type,
+		sizeof(l->llc_un.type_snap.ether_type));
+ 	(void)memcpy(th->iso88025_dhost, edst, sizeof (edst));
+ 	(void)memcpy(th->iso88025_shost, ac->ac_enaddr,
+	    sizeof(th->iso88025_shost));
+        l->llc_dsap = 0xaa;
+        l->llc_ssap = 0xaa;
+        l->llc_un.type_snap.control = 0x3;
+        l->llc_un.type_snap.org_code[0] = 0x0;
+        l->llc_un.type_snap.org_code[1] = 0x0;
+        l->llc_un.type_snap.org_code[2] = 0x0;
+        /*
+         * If a simplex interface, and the packet is being sent to our
+         * Ethernet address or a broadcast address, loopback a copy.
+         * XXX To make a simplex device behave exactly like a duplex
+         * device, we should copy in the case of sending to our own
+         * ethernet address (thus letting the original actually appear
+         * on the wire). However, we don't do that here for security
+         * reasons and compatibility with the original behavior.
+         */     
+        if ((ifp->if_flags & IFF_SIMPLEX) &&
+           (loop_copy != -1)) {
+                if ((m->m_flags & M_BCAST) || (loop_copy > 0)) { 
+                        struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
+                        /*printf("iso88025_output: if_simloop broadcast.\n");*/
+                        (void) if_simloop(ifp, n, dst, ISO88025_HDR_LEN);
+                } else if (bcmp(th->iso88025_dhost,
+                    th->iso88025_shost, ETHER_ADDR_LEN) == 0) {
+                        /*printf("iso88025_output: if_simloop to ourselves.\n");*/
+                        (void) if_simloop(ifp, m, dst, ISO88025_HDR_LEN);
+                        return(0);      /* XXX */
+                }       
+        }      
+
+        s = splimp();
+	/*
+	 * Queue message on interface, and start output if interface
+	 * not yet active.
+	 */
+	if (IF_QFULL(&ifp->if_snd)) {
+            printf("iso88025_output: packet dropped QFULL.\n");
+		IF_DROP(&ifp->if_snd);
+		splx(s);
+		senderr(ENOBUFS);
+	}
+	IF_ENQUEUE(&ifp->if_snd, m);
+        /*printf("iso88025_output: packet queued.\n");*/
+        if ((ifp->if_flags & IFF_OACTIVE) == 0)
+		(*ifp->if_start)(ifp);
+	splx(s);
+	ifp->if_obytes += len + ISO88025_HDR_LEN + 8;
+	if (m->m_flags & M_MCAST)
+		ifp->if_omcasts++;
+	return (error);
+
+bad:
+	if (m)
+		m_freem(m);
+        printf("iso88025_output: something went wrong, bailing to bad.\n");
+	return (error);
+}
+
+/*
+ * ISO 88025 de-encapsulation
+ */
+void
+iso88025_input(ifp, th, m)
+	struct ifnet *ifp;
+	register struct iso88025_header *th;
+	struct mbuf *m;
+{
+	register struct ifqueue *inq;
+	u_short ether_type;
+	int s;
+	register struct llc *l = mtod(m, struct llc *);
+
+        /*printf("iso88025_input: entered.\n");*/
+
+        /*m->m_pkthdr.len = m->m_len = m->m_len - 8;*/ /* Length of LLC header in our case */
+        m->m_pkthdr.len -= 8;
+        m->m_len -= 8;
+        m->m_data += 8; /* Length of LLC header in our case */
+
+	if ((ifp->if_flags & IFF_UP) == 0) {
+		m_freem(m);
+		return;
+	}
+	ifp->if_ibytes += m->m_pkthdr.len + sizeof (*th);
+	if (th->iso88025_dhost[0] & 1) {
+		if (bcmp((caddr_t)etherbroadcastaddr, (caddr_t)th->iso88025_dhost,
+			 sizeof(etherbroadcastaddr)) == 0)
+			m->m_flags |= M_BCAST;
+		else
+			m->m_flags |= M_MCAST;
+	} 
+	if (m->m_flags & (M_BCAST|M_MCAST))
+		ifp->if_imcasts++;
+
+	ether_type = ntohs(l->llc_un.type_snap.ether_type);
+
+        /*printf("iso88025_input: source %6D dest %6D ethertype %x\n", th->iso88025_shost, ":", th->iso88025_dhost, ":", ether_type);*/
+
+        th->iso88025_shost[0] &= ~(0x80); /* Turn off source route bit */
+        
+	switch (ether_type) {
+#ifdef INET
+	case ETHERTYPE_IP:
+            /*printf("iso88025_input: IP Packet\n");*/
+		if (ipflow_fastforward(m))
+			return;
+		schednetisr(NETISR_IP);
+		inq = &ipintrq;
+		break;
+
+	case ETHERTYPE_ARP:
+            /*printf("iso88025_input: ARP Packet\n");*/
+		schednetisr(NETISR_ARP);
+		inq = &arpintrq;
+                break;
+#endif
+	default:
+	    m_freem(m);
+	    return;
+	}
+
+	s = splimp();
+	if (IF_QFULL(inq)) {
+		IF_DROP(inq);
+		m_freem(m);
+                printf("iso88025_input: Packet dropped (Queue full).\n");
+	} else
+		IF_ENQUEUE(inq, m);
+                /*printf("iso88025_input: Packet queued.\n");*/
+	splx(s);
+}
diff --git a/sys/net/if_media.h b/sys/net/if_media.h
index b79194f..23b2b0a 100644
--- a/sys/net/if_media.h
+++ b/sys/net/if_media.h
@@ -1,5 +1,5 @@
 /*	$NetBSD: if_media.h,v 1.3 1997/03/26 01:19:27 thorpej Exp $	*/
-/*	$Id$ */
+/*	$Id: if_media.h,v 1.2 1997/05/03 20:58:10 peter Exp $ */
 
 /*
  * Copyright (c) 1997
@@ -137,9 +137,14 @@ int	ifmedia_ioctl __P((struct ifnet *ifp, struct ifreq *ifr,
 #define	IFM_TOK_STP16	4		/* Shielded twisted pair 16m - DB9 */
 #define	IFM_TOK_UTP4	5		/* Unshielded twisted pair 4m - RJ45 */
 #define	IFM_TOK_UTP16	6		/* Unshielded twisted pair 16m - RJ45 */
+#define IFM_TOK_STP100  7		/* Shielded twisted pair 100m - DB9 */
+#define IFM_TOK_UTP100  8		/* Unshielded twisted pair 100m - RJ45 */
 #define	IFM_TOK_ETR	0x00000200	/* Early token release */
 #define	IFM_TOK_SRCRT	0x00000400	/* Enable source routing features */
 #define	IFM_TOK_ALLR	0x00000800	/* All routes / Single route bcast */
+#define IFM_TOK_DTR	0x00002000	/* Dedicated token ring */
+#define IFM_TOK_CLASSIC	0x00004000	/* Classic token ring */
+#define IFM_TOK_AUTO	0x00008000	/* Automatic Dedicate/Classic token ring */
 
 /*
  * FDDI
@@ -186,9 +191,10 @@ int	ifmedia_ioctl __P((struct ifnet *ifp, struct ifreq *ifr,
 /*
  * Macros to extract various bits of information from the media word.
  */
-#define	IFM_TYPE(x)	((x) & IFM_NMASK)
-#define	IFM_SUBTYPE(x)	((x) & IFM_TMASK)
-#define	IFM_INST(x)	(((x) & IFM_IMASK) >> IFM_ISHIFT)
+#define	IFM_TYPE(x)         ((x) & IFM_NMASK)
+#define	IFM_SUBTYPE(x)      ((x) & IFM_TMASK)
+#define IFM_TYPE_OPTIONS(x) ((x) & IFM_OMASK)
+#define	IFM_INST(x)         (((x) & IFM_IMASK) >> IFM_ISHIFT)
 
 /*
  * NetBSD extension not defined in the BSDI API.  This is used in various
@@ -245,6 +251,8 @@ struct ifmedia_description {
 	{ IFM_TOK_STP16, "DB9/16Mbit" },				\
 	{ IFM_TOK_UTP4,	"UTP/4Mbit" },					\
 	{ IFM_TOK_UTP16, "UTP/16Mbit" },				\
+	{ IFM_TOK_STP100, "STP/100Mbit" },				\
+	{ IFM_TOK_UTP100, "UTP/100Mbit" },				\
 	{ 0, NULL },							\
 }
 
@@ -253,6 +261,8 @@ struct ifmedia_description {
 	{ IFM_TOK_STP16, "16STP" },					\
 	{ IFM_TOK_UTP4,	"4UTP" },					\
 	{ IFM_TOK_UTP16, "16UTP" },					\
+	{ IFM_TOK_STP100, "100STP" },					\
+	{ IFM_TOK_UTP100, "100UTP" },					\
 	{ 0, NULL },							\
 }
 
@@ -260,6 +270,9 @@ struct ifmedia_description {
 	{ IFM_TOK_ETR,	"EarlyTokenRelease" },				\
 	{ IFM_TOK_SRCRT, "SourceRouting" },				\
 	{ IFM_TOK_ALLR,	"AllRoutes" },					\
+	{ IFM_TOK_DTR,	"Dedicated" },					\
+	{ IFM_TOK_CLASSIC,"Classic" },					\
+	{ IFM_TOK_AUTO,	" " },						\
 	{ 0, NULL },							\
 }
 
diff --git a/sys/net/iso88025.h b/sys/net/iso88025.h
new file mode 100644
index 0000000..ba08c33
--- /dev/null
+++ b/sys/net/iso88025.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 1998, Larry Lile
+ * All rights reserved.
+ *
+ * For latest sources and information on this driver, please
+ * go to http://anarchy.stdio.com.
+ *
+ * Questions, comments or suggestions should be directed to
+ * Larry Lile <lile@stdio.com>.
+ *
+ * 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 unmodified, 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $Id: iso88025.h,v 1.10 1999/01/09 19:01:58 lile Exp $
+ *
+ * Information gathered from tokenring@freebsd, /sys/net/ethernet.h and
+ * the Mach token ring driver.
+ */
+
+/*
+ * Fundamental constants relating to iso 802.5
+ */
+
+#ifndef _NET_ISO88025_H_
+#define _NET_ISO88025_H_
+
+/*
+ * The number of bytes in an iso 802.5 (MAC) address.
+ */
+#define	ISO88025_ADDR_LEN	6
+
+/*
+ */
+#define ISO88025_HDR_LEN        (ISO88025_CF_LEN + ISO88025_ADDR_LEN*2)
+#define ISO88025_CF_LEN         2
+#define RCF_LEN                 2
+#define RIF_LEN                 16
+
+
+/*
+ * The minimum packet length.
+ */
+#define	ISO88025_MIN_LEN	0 /* This offends my morality */
+
+/*
+ * The maximum packet length.
+ */
+#define	ISO88025_MAX_LEN	17960	
+
+/*
+ * A macro to validate a length with
+ */
+#define	ISO88025_IS_VALID_LEN(foo)	\
+	((foo) >= ISO88025_MIN_LEN && (foo) <= ISO88025_MAX_LEN)
+
+/*
+ * ISO 802.5 physical header 
+ */
+struct iso88025_header {
+        u_char   ac;                                    /* access control field */
+        u_char   fc;                                    /* frame control field */
+        u_char   iso88025_dhost[ISO88025_ADDR_LEN];     /* destination address */
+        u_char   iso88025_shost[ISO88025_ADDR_LEN];     /* source address */
+        u_short  rcf;                                   /* route control field */
+        u_short  rseg[RIF_LEN];                         /* routing registers */
+};
+
+/*
+ * Structure of a 48-bit iso 802.5 address.
+ *  ( We could also add the 16 bit addresses as a union)
+ */
+struct	iso88025_addr {
+	u_char octet[ISO88025_ADDR_LEN];
+};
+
+#define ISO88025MTU     18000
+#define ISO88025_DEFAULT_MTU     1500
+#define senderr(e) { error = (e); goto bad;}
+
+void   iso88025_ifattach __P((struct ifnet *));
+int    iso88025_ioctl __P((struct ifnet *, int , caddr_t ));
+int    iso88025_output __P((struct ifnet *, struct mbuf *, struct sockaddr *, struct rtentry *));
+void   iso88025_input __P((struct ifnet *, struct iso88025_header *, struct mbuf *));
+
+
+#endif