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-rw-r--r--sys/net/if_fddisubr.c730
1 files changed, 730 insertions, 0 deletions
diff --git a/sys/net/if_fddisubr.c b/sys/net/if_fddisubr.c
new file mode 100644
index 0000000..fc9a75c
--- /dev/null
+++ b/sys/net/if_fddisubr.c
@@ -0,0 +1,730 @@
+/*
+ * Copyright (c) 1995, 1996
+ * Matt Thomas <matt@3am-software.com>. All rights reserved.
+ * Copyright (c) 1982, 1989, 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 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: if_ethersubr.c,v 1.5 1994/12/13 22:31:45 wollman Exp
+ * $FreeBSD$
+ */
+
+#include "opt_atalk.h"
+#include "opt_inet.h"
+#include "opt_inet6.h"
+#include "opt_ipx.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/socket.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>
+
+#if defined(INET) || defined(INET6)
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+#include <netinet/if_ether.h>
+#endif
+#ifdef INET6
+#include <netinet6/nd6.h>
+#endif
+#if defined(__FreeBSD__)
+#include <netinet/if_fddi.h>
+#else
+#include <net/if_fddi.h>
+#endif
+
+#ifdef IPX
+#include <netipx/ipx.h>
+#include <netipx/ipx_if.h>
+#endif
+
+#ifdef NS
+#include <netns/ns.h>
+#include <netns/ns_if.h>
+#endif
+
+#ifdef DECNET
+#include <netdnet/dn.h>
+#endif
+
+#ifdef ISO
+#include <netiso/argo_debug.h>
+#include <netiso/iso.h>
+#include <netiso/iso_var.h>
+#include <netiso/iso_snpac.h>
+#endif
+
+#ifdef LLC
+#include <netccitt/dll.h>
+#include <netccitt/llc_var.h>
+#endif
+
+#ifdef NETATALK
+#include <netatalk/at.h>
+#include <netatalk/at_var.h>
+#include <netatalk/at_extern.h>
+
+#define llc_snap_org_code llc_un.type_snap.org_code
+#define llc_snap_ether_type llc_un.type_snap.ether_type
+
+extern u_char at_org_code[ 3 ];
+extern u_char aarp_org_code[ 3 ];
+#endif /* NETATALK */
+
+#if defined(LLC) && defined(CCITT)
+extern struct ifqueue pkintrq;
+#endif
+
+#define senderr(e) { error = (e); goto bad;}
+
+/*
+ * This really should be defined in if_llc.h but in case it isn't.
+ */
+#ifndef llc_snap
+#define llc_snap llc_un.type_snap
+#endif
+
+#if defined(__bsdi__) || defined(__NetBSD__)
+#define RTALLOC1(a, b) rtalloc1(a, b)
+#define ARPRESOLVE(a, b, c, d, e, f) arpresolve(a, b, c, d, e)
+#elif defined(__FreeBSD__)
+#define RTALLOC1(a, b) rtalloc1(a, b, 0UL)
+#define ARPRESOLVE(a, b, c, d, e, f) arpresolve(a, b, c, d, e, f)
+#endif
+/*
+ * FDDI output routine.
+ * Encapsulate a packet of type family for the local net.
+ * Use trailer local net encapsulation if enough data in first
+ * packet leaves a multiple of 512 bytes of data in remainder.
+ * Assumes that ifp is actually pointer to arpcom structure.
+ */
+int
+fddi_output(ifp, m, dst, rt0)
+ register struct ifnet *ifp;
+ struct mbuf *m;
+ struct sockaddr *dst;
+ struct rtentry *rt0;
+{
+ u_int16_t type;
+ int s, loop_copy = 0, error = 0, hdrcmplt = 0;
+ u_char esrc[6], edst[6];
+ register struct rtentry *rt;
+ register struct fddi_header *fh;
+ struct arpcom *ac = (struct arpcom *)ifp;
+
+ if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
+ senderr(ENETDOWN);
+ getmicrotime(&ifp->if_lastchange);
+#if !defined(__bsdi__) || _BSDI_VERSION >= 199401
+ if ((rt = rt0) != NULL) {
+ if ((rt->rt_flags & RTF_UP) == 0) {
+ if ((rt0 = rt = RTALLOC1(dst, 1)) != NULL)
+ 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);
+ 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);
+ }
+#endif
+ switch (dst->sa_family) {
+
+#ifdef INET
+ case AF_INET: {
+#if !defined(__bsdi__) || _BSDI_VERSION >= 199401
+ if (!ARPRESOLVE(ac, rt, m, dst, edst, rt0))
+ return (0); /* if not yet resolved */
+#else
+ int usetrailers;
+ if (!arpresolve(ac, m, &((struct sockaddr_in *)dst)->sin_addr, edst, &usetrailers))
+ return (0); /* if not yet resolved */
+#endif
+ type = htons(ETHERTYPE_IP);
+ break;
+ }
+#endif
+#ifdef INET6
+ case AF_INET6:
+ if (!nd6_storelladdr(&ac->ac_if, rt, m, dst, (u_char *)edst)) {
+ /* this must be impossible, so we bark */
+ printf("nd6_storelladdr failed\n");
+ return(0);
+ }
+ type = htons(ETHERTYPE_IPV6);
+ break;
+#endif
+#ifdef IPX
+ case AF_IPX:
+ type = htons(ETHERTYPE_IPX);
+ bcopy((caddr_t)&(((struct sockaddr_ipx *)dst)->sipx_addr.x_host),
+ (caddr_t)edst, sizeof (edst));
+ break;
+#endif
+#ifdef NETATALK
+ case AF_APPLETALK: {
+ struct at_ifaddr *aa;
+ if (!aarpresolve(ac, m, (struct sockaddr_at *)dst, edst))
+ return (0);
+ /*
+ * ifaddr is the first thing in at_ifaddr
+ */
+ if ((aa = at_ifawithnet( (struct sockaddr_at *)dst)) == 0)
+ goto bad;
+
+ /*
+ * In the phase 2 case, we need to prepend an mbuf for the llc header.
+ * Since we must preserve the value of m, which is passed to us by
+ * value, we m_copy() the first mbuf, and use it for our llc header.
+ */
+ if (aa->aa_flags & AFA_PHASE2) {
+ struct llc llc;
+
+ M_PREPEND(m, sizeof(struct llc), M_WAIT);
+ if (m == 0)
+ senderr(ENOBUFS);
+ llc.llc_dsap = llc.llc_ssap = LLC_SNAP_LSAP;
+ llc.llc_control = LLC_UI;
+ bcopy(at_org_code, llc.llc_snap_org_code, sizeof(at_org_code));
+ llc.llc_snap_ether_type = htons(ETHERTYPE_AT);
+ bcopy(&llc, mtod(m, caddr_t), sizeof(struct llc));
+ type = 0;
+ } else {
+ type = htons(ETHERTYPE_AT);
+ }
+ break;
+ }
+#endif /* NETATALK */
+#ifdef NS
+ case AF_NS:
+ type = htons(ETHERTYPE_NS);
+ bcopy((caddr_t)&(((struct sockaddr_ns *)dst)->sns_addr.x_host),
+ (caddr_t)edst, sizeof (edst));
+ break;
+#endif
+#ifdef ISO
+ case AF_ISO: {
+ int snpalen;
+ struct llc *l;
+ register struct sockaddr_dl *sdl;
+
+ if (rt && (sdl = (struct sockaddr_dl *)rt->rt_gateway) &&
+ sdl->sdl_family == AF_LINK && sdl->sdl_alen > 0) {
+ bcopy(LLADDR(sdl), (caddr_t)edst, sizeof(edst));
+ } else if (error =
+ iso_snparesolve(ifp, (struct sockaddr_iso *)dst,
+ (char *)edst, &snpalen))
+ goto bad; /* Not Resolved */
+ /* If broadcasting on a simplex interface, loopback a copy */
+ if (*edst & 1)
+ m->m_flags |= (M_BCAST|M_MCAST);
+ M_PREPEND(m, 3, M_DONTWAIT);
+ if (m == NULL)
+ return (0);
+ type = 0;
+ l = mtod(m, struct llc *);
+ l->llc_dsap = l->llc_ssap = LLC_ISO_LSAP;
+ l->llc_control = LLC_UI;
+ IFDEBUG(D_ETHER)
+ int i;
+ printf("unoutput: sending pkt to: ");
+ for (i=0; i<6; i++)
+ printf("%x ", edst[i] & 0xff);
+ printf("\n");
+ ENDDEBUG
+ } break;
+#endif /* ISO */
+#ifdef LLC
+/* case AF_NSAP: */
+ case AF_CCITT: {
+ register struct sockaddr_dl *sdl =
+ (struct sockaddr_dl *) rt -> rt_gateway;
+
+ if (sdl && sdl->sdl_family != AF_LINK && sdl->sdl_alen <= 0)
+ goto bad; /* Not a link interface ? Funny ... */
+ bcopy(LLADDR(sdl), (char *)edst, sizeof(edst));
+ if (*edst & 1)
+ loop_copy = 1;
+ type = 0;
+#ifdef LLC_DEBUG
+ {
+ int i;
+ register struct llc *l = mtod(m, struct llc *);
+
+ printf("fddi_output: sending LLC2 pkt to: ");
+ for (i=0; i<6; i++)
+ printf("%x ", edst[i] & 0xff);
+ printf(" len 0x%x dsap 0x%x ssap 0x%x control 0x%x\n",
+ type & 0xff, l->llc_dsap & 0xff, l->llc_ssap &0xff,
+ l->llc_control & 0xff);
+
+ }
+#endif /* LLC_DEBUG */
+ } break;
+#endif /* LLC */
+
+ case pseudo_AF_HDRCMPLT:
+ {
+ struct ether_header *eh;
+ hdrcmplt = 1;
+ eh = (struct ether_header *)dst->sa_data;
+ (void)memcpy((caddr_t)esrc, (caddr_t)eh->ether_shost, sizeof (esrc));
+ /* FALLTHROUGH */
+ }
+
+ case AF_UNSPEC:
+ {
+ struct ether_header *eh;
+ loop_copy = -1;
+ eh = (struct ether_header *)dst->sa_data;
+ (void)memcpy((caddr_t)edst, (caddr_t)eh->ether_dhost, sizeof (edst));
+ if (*edst & 1)
+ m->m_flags |= (M_BCAST|M_MCAST);
+ type = eh->ether_type;
+ break;
+ }
+
+ case AF_IMPLINK:
+ {
+ fh = mtod(m, struct fddi_header *);
+ error = EPROTONOSUPPORT;
+ switch (fh->fddi_fc & (FDDIFC_C|FDDIFC_L|FDDIFC_F)) {
+ case FDDIFC_LLC_ASYNC: {
+ /* legal priorities are 0 through 7 */
+ if ((fh->fddi_fc & FDDIFC_Z) > 7)
+ goto bad;
+ break;
+ }
+ case FDDIFC_LLC_SYNC: {
+ /* FDDIFC_Z bits reserved, must be zero */
+ if (fh->fddi_fc & FDDIFC_Z)
+ goto bad;
+ break;
+ }
+ case FDDIFC_SMT: {
+ /* FDDIFC_Z bits must be non zero */
+ if ((fh->fddi_fc & FDDIFC_Z) == 0)
+ goto bad;
+ break;
+ }
+ default: {
+ /* anything else is too dangerous */
+ goto bad;
+ }
+ }
+ error = 0;
+ if (fh->fddi_dhost[0] & 1)
+ m->m_flags |= (M_BCAST|M_MCAST);
+ goto queue_it;
+ }
+ default:
+ printf("%s%d: can't handle af%d\n", ifp->if_name, ifp->if_unit,
+ dst->sa_family);
+ senderr(EAFNOSUPPORT);
+ }
+
+ if (type != 0) {
+ register struct llc *l;
+ M_PREPEND(m, sizeof (struct llc), M_DONTWAIT);
+ if (m == 0)
+ senderr(ENOBUFS);
+ l = mtod(m, struct llc *);
+ l->llc_control = LLC_UI;
+ l->llc_dsap = l->llc_ssap = LLC_SNAP_LSAP;
+ l->llc_snap.org_code[0] = l->llc_snap.org_code[1] = l->llc_snap.org_code[2] = 0;
+ (void)memcpy((caddr_t) &l->llc_snap.ether_type, (caddr_t) &type,
+ sizeof(u_int16_t));
+ }
+
+ /*
+ * Add local net header. If no space in first mbuf,
+ * allocate another.
+ */
+ M_PREPEND(m, sizeof (struct fddi_header), M_DONTWAIT);
+ if (m == 0)
+ senderr(ENOBUFS);
+ fh = mtod(m, struct fddi_header *);
+ fh->fddi_fc = FDDIFC_LLC_ASYNC|FDDIFC_LLC_PRIO4;
+ (void)memcpy((caddr_t)fh->fddi_dhost, (caddr_t)edst, sizeof (edst));
+ queue_it:
+ if (hdrcmplt)
+ (void)memcpy((caddr_t)fh->fddi_shost, (caddr_t)esrc,
+ sizeof(fh->fddi_shost));
+ else
+ (void)memcpy((caddr_t)fh->fddi_shost, (caddr_t)ac->ac_enaddr,
+ sizeof(fh->fddi_shost));
+ /*
+ * 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) {
+ struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
+
+ (void) if_simloop(ifp,
+ n, dst, sizeof(struct fddi_header));
+ } else if (bcmp(fh->fddi_dhost,
+ fh->fddi_shost, sizeof(fh->fddi_shost)) == 0) {
+ (void) if_simloop(ifp,
+ m, dst, sizeof(struct fddi_header));
+ return(0); /* XXX */
+ }
+ }
+
+ s = splimp();
+ /*
+ * Queue message on interface, and start output if interface
+ * not yet active.
+ */
+ if (IF_QFULL(&ifp->if_snd)) {
+ IF_DROP(&ifp->if_snd);
+ splx(s);
+ senderr(ENOBUFS);
+ }
+ ifp->if_obytes += m->m_pkthdr.len;
+ IF_ENQUEUE(&ifp->if_snd, m);
+ if ((ifp->if_flags & IFF_OACTIVE) == 0)
+ (*ifp->if_start)(ifp);
+ splx(s);
+ if (m->m_flags & M_MCAST)
+ ifp->if_omcasts++;
+ return (error);
+
+bad:
+ if (m)
+ m_freem(m);
+ return (error);
+}
+
+/*
+ * Process a received FDDI packet;
+ * the packet is in the mbuf chain m without
+ * the fddi header, which is provided separately.
+ */
+void
+fddi_input(ifp, fh, m)
+ struct ifnet *ifp;
+ register struct fddi_header *fh;
+ struct mbuf *m;
+{
+ register struct ifqueue *inq;
+ register struct llc *l;
+ int s;
+
+ if ((ifp->if_flags & IFF_UP) == 0) {
+ m_freem(m);
+ return;
+ }
+ getmicrotime(&ifp->if_lastchange);
+ ifp->if_ibytes += m->m_pkthdr.len + sizeof (*fh);
+ if (fh->fddi_dhost[0] & 1) {
+ if (bcmp((caddr_t)fddibroadcastaddr, (caddr_t)fh->fddi_dhost,
+ sizeof(fddibroadcastaddr)) == 0)
+ m->m_flags |= M_BCAST;
+ else
+ m->m_flags |= M_MCAST;
+ ifp->if_imcasts++;
+ } else if ((ifp->if_flags & IFF_PROMISC)
+ && bcmp(((struct arpcom *)ifp)->ac_enaddr, (caddr_t)fh->fddi_dhost,
+ sizeof(fh->fddi_dhost)) != 0) {
+ m_freem(m);
+ return;
+ }
+
+#ifdef M_LINK0
+ /*
+ * If this has a LLC priority of 0, then mark it so upper
+ * layers have a hint that it really came via a FDDI/Ethernet
+ * bridge.
+ */
+ if ((fh->fddi_fc & FDDIFC_LLC_PRIO7) == FDDIFC_LLC_PRIO0)
+ m->m_flags |= M_LINK0;
+#endif
+
+ l = mtod(m, struct llc *);
+ switch (l->llc_dsap) {
+#if defined(INET) || defined(INET6) || defined(NS) || defined(DECNET) || defined(IPX) || defined(NETATALK)
+ case LLC_SNAP_LSAP:
+ {
+ u_int16_t type;
+ if (l->llc_control != LLC_UI || l->llc_ssap != LLC_SNAP_LSAP)
+ goto dropanyway;
+#ifdef NETATALK
+ if (Bcmp(&(l->llc_snap_org_code)[0], at_org_code,
+ sizeof(at_org_code)) == 0 &&
+ ntohs(l->llc_snap_ether_type) == ETHERTYPE_AT) {
+ inq = &atintrq2;
+ m_adj( m, sizeof( struct llc ));
+ schednetisr(NETISR_ATALK);
+ break;
+ }
+
+ if (Bcmp(&(l->llc_snap_org_code)[0], aarp_org_code,
+ sizeof(aarp_org_code)) == 0 &&
+ ntohs(l->llc_snap_ether_type) == ETHERTYPE_AARP) {
+ m_adj( m, sizeof( struct llc ));
+ aarpinput((struct arpcom *)ifp, m); /* XXX */
+ return;
+ }
+#endif /* NETATALK */
+ if (l->llc_snap.org_code[0] != 0 || l->llc_snap.org_code[1] != 0|| l->llc_snap.org_code[2] != 0)
+ goto dropanyway;
+ type = ntohs(l->llc_snap.ether_type);
+ m_adj(m, 8);
+ switch (type) {
+#ifdef INET
+ case ETHERTYPE_IP:
+ if (ipflow_fastforward(m))
+ return;
+ schednetisr(NETISR_IP);
+ inq = &ipintrq;
+ break;
+
+ case ETHERTYPE_ARP:
+#if !defined(__bsdi__) || _BSDI_VERSION >= 199401
+ schednetisr(NETISR_ARP);
+ inq = &arpintrq;
+ break;
+#else
+ arpinput((struct arpcom *)ifp, m);
+ return;
+#endif
+#endif
+#ifdef INET6
+ case ETHERTYPE_IPV6:
+ schednetisr(NETISR_IPV6);
+ inq = &ip6intrq;
+ break;
+#endif
+#ifdef IPX
+ case ETHERTYPE_IPX:
+ schednetisr(NETISR_IPX);
+ inq = &ipxintrq;
+ break;
+#endif
+#ifdef NS
+ case ETHERTYPE_NS:
+ schednetisr(NETISR_NS);
+ inq = &nsintrq;
+ break;
+#endif
+#ifdef DECNET
+ case ETHERTYPE_DECNET:
+ schednetisr(NETISR_DECNET);
+ inq = &decnetintrq;
+ break;
+#endif
+#ifdef NETATALK
+ case ETHERTYPE_AT:
+ schednetisr(NETISR_ATALK);
+ inq = &atintrq1;
+ break;
+ case ETHERTYPE_AARP:
+ /* probably this should be done with a NETISR as well */
+ aarpinput((struct arpcom *)ifp, m); /* XXX */
+ return;
+#endif /* NETATALK */
+ default:
+ /* printf("fddi_input: unknown protocol 0x%x\n", type); */
+ ifp->if_noproto++;
+ goto dropanyway;
+ }
+ break;
+ }
+#endif /* INET || NS */
+#ifdef ISO
+ case LLC_ISO_LSAP:
+ switch (l->llc_control) {
+ case LLC_UI:
+ /* LLC_UI_P forbidden in class 1 service */
+ if ((l->llc_dsap == LLC_ISO_LSAP) &&
+ (l->llc_ssap == LLC_ISO_LSAP)) {
+ /* LSAP for ISO */
+ m->m_data += 3; /* XXX */
+ m->m_len -= 3; /* XXX */
+ m->m_pkthdr.len -= 3; /* XXX */
+ M_PREPEND(m, sizeof *fh, M_DONTWAIT);
+ if (m == 0)
+ return;
+ *mtod(m, struct fddi_header *) = *fh;
+ IFDEBUG(D_ETHER)
+ printf("clnp packet");
+ ENDDEBUG
+ schednetisr(NETISR_ISO);
+ inq = &clnlintrq;
+ break;
+ }
+ goto dropanyway;
+
+ case LLC_XID:
+ case LLC_XID_P:
+ if(m->m_len < 6)
+ goto dropanyway;
+ l->llc_window = 0;
+ l->llc_fid = 9;
+ l->llc_class = 1;
+ l->llc_dsap = l->llc_ssap = 0;
+ /* Fall through to */
+ case LLC_TEST:
+ case LLC_TEST_P:
+ {
+ struct sockaddr sa;
+ register struct ether_header *eh;
+ struct arpcom *ac = (struct arpcom *) ifp;
+ int i;
+ u_char c = l->llc_dsap;
+
+ l->llc_dsap = l->llc_ssap;
+ l->llc_ssap = c;
+ if (m->m_flags & (M_BCAST | M_MCAST))
+ bcopy((caddr_t)ac->ac_enaddr,
+ (caddr_t)eh->ether_dhost, 6);
+ sa.sa_family = AF_UNSPEC;
+ sa.sa_len = sizeof(sa);
+ eh = (struct ether_header *)sa.sa_data;
+ for (i = 0; i < 6; i++) {
+ eh->ether_shost[i] = fh->fddi_dhost[i];
+ eh->ether_dhost[i] = fh->fddi_shost[i];
+ }
+ eh->ether_type = 0;
+ ifp->if_output(ifp, m, &sa, NULL);
+ return;
+ }
+ default:
+ m_freem(m);
+ return;
+ }
+ break;
+#endif /* ISO */
+#ifdef LLC
+ case LLC_X25_LSAP:
+ {
+ M_PREPEND(m, sizeof(struct sdl_hdr) , M_DONTWAIT);
+ if (m == 0)
+ return;
+ if ( !sdl_sethdrif(ifp, fh->fddi_shost, LLC_X25_LSAP,
+ fh->fddi_dhost, LLC_X25_LSAP, 6,
+ mtod(m, struct sdl_hdr *)))
+ panic("ETHER cons addr failure");
+ mtod(m, struct sdl_hdr *)->sdlhdr_len = m->m_pkthdr.len - sizeof(struct sdl_hdr);
+#ifdef LLC_DEBUG
+ printf("llc packet\n");
+#endif /* LLC_DEBUG */
+ schednetisr(NETISR_CCITT);
+ inq = &llcintrq;
+ break;
+ }
+#endif /* LLC */
+
+ default:
+ /* printf("fddi_input: unknown dsap 0x%x\n", l->llc_dsap); */
+ ifp->if_noproto++;
+ dropanyway:
+ m_freem(m);
+ return;
+ }
+
+ s = splimp();
+ if (IF_QFULL(inq)) {
+ IF_DROP(inq);
+ m_freem(m);
+ } else
+ IF_ENQUEUE(inq, m);
+ splx(s);
+}
+/*
+ * Perform common duties while attaching to interface list
+ */
+#ifdef __NetBSD__
+#define ifa_next ifa_list.tqe_next
+#endif
+
+void
+fddi_ifattach(ifp)
+ register struct ifnet *ifp;
+{
+ register struct ifaddr *ifa;
+ register struct sockaddr_dl *sdl;
+
+ ifp->if_type = IFT_FDDI;
+ ifp->if_addrlen = 6;
+ ifp->if_hdrlen = 21;
+ ifp->if_mtu = FDDIMTU;
+ ifp->if_baudrate = 100000000;
+#ifdef IFF_NOTRAILERS
+ ifp->if_flags |= IFF_NOTRAILERS;
+#endif
+#if defined(__FreeBSD__)
+ ifa = ifnet_addrs[ifp->if_index - 1];
+ sdl = (struct sockaddr_dl *)ifa->ifa_addr;
+ sdl->sdl_type = IFT_FDDI;
+ sdl->sdl_alen = ifp->if_addrlen;
+ bcopy(((struct arpcom *)ifp)->ac_enaddr, LLADDR(sdl), ifp->if_addrlen);
+#elif defined(__NetBSD__)
+ LIST_INIT(&((struct arpcom *)ifp)->ac_multiaddrs);
+ for (ifa = ifp->if_addrlist.tqh_first; ifa != NULL; ifa = ifa->ifa_list.tqe_next)
+#else
+ for (ifa = ifp->if_addrlist; ifa != NULL; ifa = ifa->ifa_next)
+#endif
+#if !defined(__FreeBSD__)
+ if ((sdl = (struct sockaddr_dl *)ifa->ifa_addr) &&
+ sdl->sdl_family == AF_LINK) {
+ sdl->sdl_type = IFT_FDDI;
+ sdl->sdl_alen = ifp->if_addrlen;
+ bcopy((caddr_t)((struct arpcom *)ifp)->ac_enaddr,
+ LLADDR(sdl), ifp->if_addrlen);
+ break;
+ }
+#endif
+}
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