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-rw-r--r--sys/net/if_atm.h88
-rw-r--r--sys/net/if_atmsubr.c265
-rw-r--r--sys/netinet/if_atm.c222
-rw-r--r--sys/netinet/if_atm.h42
4 files changed, 617 insertions, 0 deletions
diff --git a/sys/net/if_atm.h b/sys/net/if_atm.h
new file mode 100644
index 00000000000..a836508e04b
--- /dev/null
+++ b/sys/net/if_atm.h
@@ -0,0 +1,88 @@
+/* $OpenBSD: if_atm.h,v 1.1 1996/06/21 15:13:39 chuck Exp $ */
+
+/*
+ *
+ * Copyright (c) 1996 Charles D. Cranor
+ * 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 Charles D. Cranor.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+/*
+ * net/if_atm.h
+ */
+
+/*
+ * pseudo header for packet transmission
+ */
+
+struct atm_pseudohdr {
+ u_int8_t atm_ph[4]; /* flags+VPI+VCI1(msb)+VCI2(lsb) */
+};
+
+#define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
+#define ATM_PH_VPI(X) ((X)->atm_ph[1])
+#define ATM_PH_VCI(X) ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
+#define ATM_PH_SETVCI(X,V) { \
+ (X)->atm_ph[2] = ((V) >> 8) & 0xff; \
+ (X)->atm_ph[3] = ((V) & 0xff); \
+}
+
+#define ATM_PH_AAL5 0x01 /* use AAL5? (0 == aal0) */
+#define ATM_PH_LLCSNAP 0x02 /* use the LLC SNAP encoding (iff aal5) */
+
+#define ATM_PH_DRIVER7 0x40 /* reserve for driver's use */
+#define ATM_PH_DRIVER8 0x80 /* reserve for driver's use */
+
+#define ATMMTU 9180 /* ATM MTU size for IP */
+ /* XXX: could be 9188 with LLC/SNAP according
+ to comer */
+
+/* pseudo ioctl */
+#define SIOCATMENA _IOWR('a', 122, struct atm_pseudohdr) /* enable */
+#define SIOCATMDIS _IOWR('a', 123, struct atm_pseudohdr) /* disable */
+
+/*
+ * XXX forget all the garbage in if_llc.h and do it the easy way
+ */
+
+#define ATMLLC_HDR "\252\252\3\0\0\0"
+struct atmllc {
+ u_int8_t llchdr[6]; /* aa.aa.03.00.00.00 */
+ u_int8_t type[2]; /* "ethernet" type */
+};
+
+#define ATM_LLC_TYPE(X) (((X)->type[1] << 8) | ((X)->type[0]))
+#define ATM_LLC_SETTYPE(X,V) { \
+ (X)->type[1] = ((V) >> 8) & 0xff; \
+ (X)->type[0] = ((V) & 0xff); \
+}
+
+#ifdef _KERNEL
+void atm_ifattach __P((struct ifnet *));
+int atm_output __P((struct ifnet *, struct mbuf *, struct sockaddr *,
+ struct rtentry *));
+#endif
diff --git a/sys/net/if_atmsubr.c b/sys/net/if_atmsubr.c
new file mode 100644
index 00000000000..e91d6cff8ad
--- /dev/null
+++ b/sys/net/if_atmsubr.c
@@ -0,0 +1,265 @@
+/* $OpenBSD: if_atmsubr.c,v 1.1 1996/06/21 15:13:40 chuck Exp $ */
+
+/*
+ *
+ * Copyright (c) 1996 Charles D. Cranor
+ * 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 Charles D. Cranor.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+/*
+ * if_atmsubr.c
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/protosw.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/errno.h>
+#include <sys/syslog.h>
+
+#include <machine/cpu.h>
+
+#include <net/if.h>
+#include <net/netisr.h>
+#include <net/route.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <net/if_atm.h>
+
+#include <netinet/in.h>
+#include <netinet/if_ether.h> /* XXX: for ETHERTYPE_* */
+#ifdef INET
+#include <netinet/in_var.h>
+#endif
+
+#define senderr(e) { error = (e); goto bad;}
+
+/*
+ * atm_output: ATM output routine
+ * inputs:
+ * "ifp" = ATM interface to output to
+ * "m0" = the packet to output
+ * "dst" = the sockaddr to send to (either IP addr, or raw VPI/VCI)
+ * "rt0" = the route to use
+ * returns: error code [0 == ok]
+ */
+
+int
+atm_output(ifp, m0, dst, rt0)
+ register struct ifnet *ifp;
+ struct mbuf *m0;
+ struct sockaddr *dst;
+ struct rtentry *rt0;
+{
+ u_int16_t etype = 0; /* if using LLC/SNAP */
+ int s, error = 0, sz;
+ struct atm_pseudohdr atmdst, *ad;
+ register struct mbuf *m = m0;
+ register struct rtentry *rt;
+ struct atmllc *atmllc;
+ u_int32_t atm_flags;
+
+ if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
+ senderr(ENETDOWN);
+ ifp->if_lastchange = time;
+
+ /*
+ * check route
+ */
+ if ((rt = rt0) != NULL) {
+
+ if ((rt->rt_flags & RTF_UP) == 0) { /* route went down! */
+ if ((rt0 = rt = rtalloc1(dst, 0)) != 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, 0);
+ if ((rt = rt->rt_gwroute) == 0)
+ senderr(EHOSTUNREACH);
+ }
+ }
+
+ /* XXX: put RTF_REJECT code here if doing ATMARP */
+
+ }
+ switch (dst->sa_family) {
+#ifdef INET
+ case AF_INET:
+ if (!atmresolve(rt, m, dst, &atmdst)) {
+ m = NULL; /* XXX: atmresolve already free'd it */
+ senderr(EHOSTUNREACH);
+ /* XXX: ATMARP stuff here, watch who frees m on fail */
+ }
+ etype = htons(ETHERTYPE_IP);
+ break;
+#endif
+
+ /* case AF_ATM: XXX: need raw ATM handle here? */
+
+ default:
+ printf("%s: can't handle af%d\n", ifp->if_xname,
+ dst->sa_family);
+ senderr(EAFNOSUPPORT);
+ }
+
+ sz = sizeof(atmdst);
+ atm_flags = ATM_PH_FLAGS(&atmdst);
+ if (atm_flags & ATM_PH_LLCSNAP) sz += 8; /* sizeof snap == 8 */
+ M_PREPEND(m, sz, M_DONTWAIT);
+ if (m == 0)
+ senderr(ENOBUFS);
+ ad = mtod(m, struct atm_pseudohdr *);
+ *ad = atmdst;
+ if (atm_flags & ATM_PH_LLCSNAP) {
+ atmllc = (struct atmllc *)(ad + 1);
+ bcopy(ATMLLC_HDR, atmllc->llchdr, sizeof(atmllc->llchdr));
+ ATM_LLC_SETTYPE(atmllc, etype); /* already in network order */
+ }
+
+ /*
+ * Queue message on interface, and start output if interface
+ * not yet active.
+ */
+
+ s = splimp();
+ 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);
+ return (error);
+
+bad:
+ if (m)
+ m_freem(m);
+ return (error);
+}
+
+/*
+ * Process a received ATM packet;
+ * the packet is in the mbuf chain m.
+ */
+void
+atm_input(ifp, ah, m)
+ struct ifnet *ifp;
+ register struct atm_pseudohdr *ah;
+ struct mbuf *m;
+{
+ register struct ifqueue *inq;
+ u_int16_t etype = ETHERTYPE_IP; /* default */
+ int s;
+
+ if ((ifp->if_flags & IFF_UP) == 0) {
+ m_freem(m);
+ return;
+ }
+ ifp->if_lastchange = time;
+ ifp->if_ibytes += m->m_pkthdr.len;
+
+ /*
+ * handle LLC/SNAP header, if present
+ */
+ if (ATM_PH_FLAGS(ah) & ATM_PH_LLCSNAP) {
+ struct atmllc *alc;
+ if (m->m_len < sizeof(*alc) && (m = m_pullup(m, sizeof(*alc))) == 0)
+ return; /* failed */
+ alc = mtod(m, struct atmllc *);
+ if (bcmp(alc, ATMLLC_HDR, 6)) {
+ printf("%s: recv'd invalid LLC/SNAP frame [vp=%d,vc=%d]\n",
+ ifp->if_xname, ATM_PH_VPI(ah), ATM_PH_VCI(ah));
+ m_freem(m);
+ return;
+ }
+ etype = ATM_LLC_TYPE(alc);
+ m_adj(m, sizeof(*alc));
+ }
+
+ switch (etype) {
+#ifdef INET
+ case ETHERTYPE_IP:
+ schednetisr(NETISR_IP);
+ inq = &ipintrq;
+ break;
+#endif
+ default:
+ 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
+ */
+void
+atm_ifattach(ifp)
+ register struct ifnet *ifp;
+{
+ register struct ifaddr *ifa;
+ register struct sockaddr_dl *sdl;
+
+ ifp->if_type = IFT_ATM;
+ ifp->if_addrlen = 0;
+ ifp->if_hdrlen = 0;
+ ifp->if_mtu = ATMMTU;
+ ifp->if_output = atm_output;
+ for (ifa = ifp->if_addrlist.tqh_first; ifa != 0;
+ ifa = ifa->ifa_list.tqe_next)
+ if ((sdl = (struct sockaddr_dl *)ifa->ifa_addr) &&
+ sdl->sdl_family == AF_LINK) {
+ sdl->sdl_type = IFT_ATM;
+ sdl->sdl_alen = ifp->if_addrlen;
+#ifdef notyet /* if using ATMARP, store hardware address using the next line */
+ bcopy(ifp->hw_addr, LLADDR(sdl), ifp->if_addrlen);
+#endif
+ break;
+ }
+}
diff --git a/sys/netinet/if_atm.c b/sys/netinet/if_atm.c
new file mode 100644
index 00000000000..eb0e52e759b
--- /dev/null
+++ b/sys/netinet/if_atm.c
@@ -0,0 +1,222 @@
+/* $OpenBSD: if_atm.c,v 1.1 1996/06/21 15:14:35 chuck Exp $ */
+
+/*
+ *
+ * Copyright (c) 1996 Charles D. Cranor
+ * 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 Charles D. Cranor.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+/*
+ * IP <=> ATM address resolution.
+ */
+
+#ifdef INET
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/kernel.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/syslog.h>
+#include <sys/proc.h>
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/route.h>
+#include <net/if_atm.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/in_var.h>
+#include <netinet/ip.h>
+#include <netinet/if_atm.h>
+
+#define SDL(s) ((struct sockaddr_dl *)s)
+
+/*
+ * atm_rtrequest: handle ATM rt request (in support of generic code)
+ * inputs: "req" = request code
+ * "rt" = route entry
+ * "sa" = sockaddr
+ */
+
+void
+atm_rtrequest(req, rt, sa)
+ int req;
+ register struct rtentry *rt;
+ struct sockaddr *sa;
+{
+ register struct sockaddr *gate = rt->rt_gateway;
+ static struct sockaddr_dl null_sdl = {sizeof(null_sdl), AF_LINK};
+
+ if (rt->rt_flags & RTF_GATEWAY) /* link level requests only */
+ return;
+
+ switch (req) {
+
+ case RTM_RESOLVE: /* resolve: only happens when cloning */
+ printf("atm_rtrequest: RTM_RESOLVE request detected?\n");
+ break;
+
+ case RTM_ADD:
+
+ /*
+ * route added by a command (e.g. ifconfig, route, arp...).
+ *
+ * first check to see if this is not a host route, in which
+ * case we are being called via "ifconfig" to set the address.
+ */
+
+ if ((rt->rt_flags & RTF_HOST) == 0) {
+ rt_setgate(rt,rt_key(rt),(struct sockaddr *)&null_sdl);
+ gate = rt->rt_gateway;
+ SDL(gate)->sdl_type = rt->rt_ifp->if_type;
+ SDL(gate)->sdl_index = rt->rt_ifp->if_index;
+ break;
+ }
+
+ if ((rt->rt_flags & RTF_CLONING) != 0) {
+ printf("atm_rtrequest: cloning route detected?\n");
+ break;
+ }
+ if (gate->sa_family != AF_LINK ||
+ gate->sa_len < sizeof(null_sdl)) {
+ log(LOG_DEBUG, "atm_rtrequest: bad gateway value");
+ break;
+ }
+
+#ifdef DIAGNOSTIC
+ if (rt->rt_ifp->if_ioctl == NULL) panic("atm null ioctl");
+#endif
+
+ /*
+ * let the lower level know this circuit is active
+ */
+ if (rt->rt_ifp->if_ioctl(rt->rt_ifp, SIOCATMENA,
+ LLADDR(SDL(gate))) != 0) {
+ printf("atm: couldn't add VC\n");
+ /* XXX: do we need to do anything else to recover? */
+ break;
+ }
+
+ SDL(gate)->sdl_type = rt->rt_ifp->if_type;
+ SDL(gate)->sdl_index = rt->rt_ifp->if_index;
+
+ break;
+
+ case RTM_DELETE:
+
+ /*
+ * tell the lower layer to disable this circuit
+ */
+ (void)rt->rt_ifp->if_ioctl(rt->rt_ifp, SIOCATMDIS,
+ LLADDR(SDL(gate)));
+
+ break;
+ }
+}
+
+/*
+ * atmresolve:
+ * inputs:
+ * [1] "rt" = the link level route to use (or null if need to look one up)
+ * [2] "m" = mbuf containing the data to be sent
+ * [3] "dst" = sockaddr_in (IP) address of dest.
+ * output:
+ * [4] "desten" = ATM pseudo header which we will fill in VPI/VCI info
+ * return:
+ * 0 == resolve FAILED; note that "m" gets m_freem'd in this case
+ * 1 == resolve OK; desten contains result
+ *
+ * XXX: will need more work if we wish to support ATMARP in the kernel,
+ * but this is enough for PVCs entered via the "route" command.
+ */
+
+int
+atmresolve(rt, m, dst, desten)
+
+register struct rtentry *rt;
+struct mbuf *m;
+register struct sockaddr *dst;
+register struct atm_pseudohdr *desten; /* OUT */
+
+{
+ struct sockaddr_dl *sdl;
+
+ if (m->m_flags & (M_BCAST|M_MCAST)) {
+ log(LOG_INFO, "atmresolve: BCAST/MCAST packet detected/dumped");
+ goto bad;
+ }
+
+ if (rt == NULL) {
+ rt = rtalloc1(dst, 0);
+ if (rt == NULL) goto bad; /* failed */
+ rt->rt_refcnt--; /* don't keep LL references */
+ if ((rt->rt_flags & RTF_GATEWAY) != 0 ||
+ (rt->rt_flags & RTF_LLINFO) == 0 ||
+ /* XXX: are we using LLINFO? */
+ rt->rt_gateway->sa_family != AF_LINK) {
+ goto bad;
+ }
+ }
+
+ /*
+ * note that rt_gateway is a sockaddr_dl which contains the
+ * atm_pseudohdr data structure for this route. we currently
+ * don't need any rt_llinfo info (but will if we want to support
+ * ATM ARP [c.f. if_ether.c]).
+ */
+
+ sdl = SDL(rt->rt_gateway);
+
+ /*
+ * Check the address family and length is valid, the address
+ * is resolved; otherwise, try to resolve.
+ */
+
+
+ if (sdl->sdl_family == AF_LINK && sdl->sdl_alen == sizeof(*desten)) {
+ bcopy(LLADDR(sdl), desten, sdl->sdl_alen);
+ return(1); /* ok, go for it! */
+ }
+
+ /*
+ * we got an entry, but it doesn't have valid link address
+ * info in it (it is prob. the interface route, which has
+ * sdl_alen == 0). dump packet. (fall through to "bad").
+ */
+
+bad:
+ m_freem(m);
+ return(0);
+}
+#endif /* INET */
diff --git a/sys/netinet/if_atm.h b/sys/netinet/if_atm.h
new file mode 100644
index 00000000000..054cd1a2e99
--- /dev/null
+++ b/sys/netinet/if_atm.h
@@ -0,0 +1,42 @@
+/* $OpenBSD: if_atm.h,v 1.1 1996/06/21 15:14:35 chuck Exp $ */
+
+/*
+ *
+ * Copyright (c) 1996 Charles D. Cranor
+ * 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 Charles D. Cranor.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+/*
+ * if_atm.h
+ */
+
+#ifdef _KERNEL
+void atm_rtrequest __P((int, struct rtentry *, struct sockaddr *));
+int atmresolve __P((struct rtentry *, struct mbuf *, struct sockaddr *,
+ struct atm_pseudohdr *));
+#endif /* _KERNEL */
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