diff options
Diffstat (limited to 'c/src/libnetworking/netinet/in.c')
-rw-r--r-- | c/src/libnetworking/netinet/in.c | 728 |
1 files changed, 728 insertions, 0 deletions
diff --git a/c/src/libnetworking/netinet/in.c b/c/src/libnetworking/netinet/in.c new file mode 100644 index 0000000000..701406f207 --- /dev/null +++ b/c/src/libnetworking/netinet/in.c @@ -0,0 +1,728 @@ +/* + * Copyright (c) 1982, 1986, 1991, 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. + * + * @(#)in.c 8.4 (Berkeley) 1/9/95 + * $Id$ + */ + +#include <sys/param.h> +#include <sys/queue.h> +#include <sys/systm.h> +#include <sys/ioctl.h> +#include <sys/errno.h> +#include <sys/malloc.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/kernel.h> +#include <sys/sysctl.h> + +#include <net/if.h> +#include <net/route.h> + +#include <netinet/in_systm.h> +#include <netinet/in.h> +#include <netinet/in_var.h> +#include <netinet/if_ether.h> + +#include <netinet/igmp_var.h> + +/* + * This structure is used to keep track of in_multi chains which belong to + * deleted interface addresses. + */ +static LIST_HEAD(, multi_kludge) in_mk; /* XXX BSS initialization */ + +struct multi_kludge { + LIST_ENTRY(multi_kludge) mk_entry; + struct ifnet *mk_ifp; + struct in_multihead mk_head; +}; + +static void in_socktrim __P((struct sockaddr_in *)); +static int in_ifinit __P((struct ifnet *, + struct in_ifaddr *, struct sockaddr_in *, int)); +static void in_ifscrub __P((struct ifnet *, struct in_ifaddr *)); + +static int subnetsarelocal = 0; +SYSCTL_INT(_net_inet_ip, OID_AUTO, subnets_are_local, CTLFLAG_RW, + &subnetsarelocal, 0, ""); +/* + * Return 1 if an internet address is for a ``local'' host + * (one to which we have a connection). If subnetsarelocal + * is true, this includes other subnets of the local net. + * Otherwise, it includes only the directly-connected (sub)nets. + */ +int +in_localaddr(in) + struct in_addr in; +{ + register u_long i = ntohl(in.s_addr); + register struct in_ifaddr *ia; + + if (subnetsarelocal) { + for (ia = in_ifaddr; ia; ia = ia->ia_next) + if ((i & ia->ia_netmask) == ia->ia_net) + return (1); + } else { + for (ia = in_ifaddr; ia; ia = ia->ia_next) + if ((i & ia->ia_subnetmask) == ia->ia_subnet) + return (1); + } + return (0); +} + +/* + * Determine whether an IP address is in a reserved set of addresses + * that may not be forwarded, or whether datagrams to that destination + * may be forwarded. + */ +int +in_canforward(in) + struct in_addr in; +{ + register u_long i = ntohl(in.s_addr); + register u_long net; + + if (IN_EXPERIMENTAL(i) || IN_MULTICAST(i)) + return (0); + if (IN_CLASSA(i)) { + net = i & IN_CLASSA_NET; + if (net == 0 || net == (IN_LOOPBACKNET << IN_CLASSA_NSHIFT)) + return (0); + } + return (1); +} + +/* + * Trim a mask in a sockaddr + */ +static void +in_socktrim(ap) +struct sockaddr_in *ap; +{ + register char *cplim = (char *) &ap->sin_addr; + register char *cp = (char *) (&ap->sin_addr + 1); + + ap->sin_len = 0; + while (--cp >= cplim) + if (*cp) { + (ap)->sin_len = cp - (char *) (ap) + 1; + break; + } +} + +static int in_interfaces; /* number of external internet interfaces */ + +/* + * Generic internet control operations (ioctl's). + * Ifp is 0 if not an interface-specific ioctl. + */ +/* ARGSUSED */ +int +in_control(so, cmd, data, ifp) + struct socket *so; + u_long cmd; + caddr_t data; + register struct ifnet *ifp; +{ + register struct ifreq *ifr = (struct ifreq *)data; + register struct in_ifaddr *ia = 0, *iap; + register struct ifaddr *ifa; + struct in_ifaddr *oia; + struct in_aliasreq *ifra = (struct in_aliasreq *)data; + struct sockaddr_in oldaddr; + int error, hostIsNew, maskIsNew, s; + u_long i; + struct multi_kludge *mk; + + /* + * Find address for this interface, if it exists. + * + * If an alias address was specified, find that one instead of + * the first one on the interface. + */ + if (ifp) + for (iap = in_ifaddr; iap; iap = iap->ia_next) + if (iap->ia_ifp == ifp) { + if (((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr.s_addr == + iap->ia_addr.sin_addr.s_addr) { + ia = iap; + break; + } else if (ia == NULL) { + ia = iap; + if (ifr->ifr_addr.sa_family != AF_INET) + break; + } + } + + switch (cmd) { + + case SIOCAIFADDR: + case SIOCDIFADDR: + if (ifra->ifra_addr.sin_family == AF_INET) { + for (oia = ia; ia; ia = ia->ia_next) { + if (ia->ia_ifp == ifp && + ia->ia_addr.sin_addr.s_addr == + ifra->ifra_addr.sin_addr.s_addr) + break; + } + if ((ifp->if_flags & IFF_POINTOPOINT) + && (cmd == SIOCAIFADDR) + && (ifra->ifra_dstaddr.sin_addr.s_addr + == INADDR_ANY)) { + return EDESTADDRREQ; + } + } + if (cmd == SIOCDIFADDR && ia == 0) + return (EADDRNOTAVAIL); + /* FALLTHROUGH */ + case SIOCSIFADDR: + case SIOCSIFNETMASK: + case SIOCSIFDSTADDR: + if ((so->so_state & SS_PRIV) == 0) + return (EPERM); + + if (ifp == 0) + panic("in_control"); + if (ia == (struct in_ifaddr *)0) { + oia = (struct in_ifaddr *) + malloc(sizeof *oia, M_IFADDR, M_WAITOK); + if (oia == (struct in_ifaddr *)NULL) + return (ENOBUFS); + bzero((caddr_t)oia, sizeof *oia); + ia = in_ifaddr; + /* + * Protect from ipintr() traversing address list + * while we're modifying it. + */ + s = splnet(); + + if (ia) { + for ( ; ia->ia_next; ia = ia->ia_next) + continue; + ia->ia_next = oia; + } else + in_ifaddr = oia; + ia = oia; + ifa = ifp->if_addrlist; + if (ifa) { + for ( ; ifa->ifa_next; ifa = ifa->ifa_next) + continue; + ifa->ifa_next = (struct ifaddr *) ia; + } else + ifp->if_addrlist = (struct ifaddr *) ia; + ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; + ia->ia_ifa.ifa_dstaddr + = (struct sockaddr *)&ia->ia_dstaddr; + ia->ia_ifa.ifa_netmask + = (struct sockaddr *)&ia->ia_sockmask; + ia->ia_sockmask.sin_len = 8; + if (ifp->if_flags & IFF_BROADCAST) { + ia->ia_broadaddr.sin_len = sizeof(ia->ia_addr); + ia->ia_broadaddr.sin_family = AF_INET; + } + ia->ia_ifp = ifp; + if (!(ifp->if_flags & IFF_LOOPBACK)) + in_interfaces++; + splx(s); + } + break; + + case SIOCSIFBRDADDR: + if ((so->so_state & SS_PRIV) == 0) + return (EPERM); + /* FALLTHROUGH */ + + case SIOCGIFADDR: + case SIOCGIFNETMASK: + case SIOCGIFDSTADDR: + case SIOCGIFBRDADDR: + if (ia == (struct in_ifaddr *)0) + return (EADDRNOTAVAIL); + break; + } + switch (cmd) { + + case SIOCGIFADDR: + *((struct sockaddr_in *)&ifr->ifr_addr) = ia->ia_addr; + break; + + case SIOCGIFBRDADDR: + if ((ifp->if_flags & IFF_BROADCAST) == 0) + return (EINVAL); + *((struct sockaddr_in *)&ifr->ifr_dstaddr) = ia->ia_broadaddr; + break; + + case SIOCGIFDSTADDR: + if ((ifp->if_flags & IFF_POINTOPOINT) == 0) + return (EINVAL); + *((struct sockaddr_in *)&ifr->ifr_dstaddr) = ia->ia_dstaddr; + break; + + case SIOCGIFNETMASK: + *((struct sockaddr_in *)&ifr->ifr_addr) = ia->ia_sockmask; + break; + + case SIOCSIFDSTADDR: + if ((ifp->if_flags & IFF_POINTOPOINT) == 0) + return (EINVAL); + oldaddr = ia->ia_dstaddr; + ia->ia_dstaddr = *(struct sockaddr_in *)&ifr->ifr_dstaddr; + if (ifp->if_ioctl && (error = (*ifp->if_ioctl) + (ifp, SIOCSIFDSTADDR, (caddr_t)ia))) { + ia->ia_dstaddr = oldaddr; + return (error); + } + if (ia->ia_flags & IFA_ROUTE) { + ia->ia_ifa.ifa_dstaddr = (struct sockaddr *)&oldaddr; + rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); + ia->ia_ifa.ifa_dstaddr = + (struct sockaddr *)&ia->ia_dstaddr; + rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP); + } + break; + + case SIOCSIFBRDADDR: + if ((ifp->if_flags & IFF_BROADCAST) == 0) + return (EINVAL); + ia->ia_broadaddr = *(struct sockaddr_in *)&ifr->ifr_broadaddr; + break; + + case SIOCSIFADDR: + return (in_ifinit(ifp, ia, + (struct sockaddr_in *) &ifr->ifr_addr, 1)); + + case SIOCSIFNETMASK: + i = ifra->ifra_addr.sin_addr.s_addr; + ia->ia_subnetmask = ntohl(ia->ia_sockmask.sin_addr.s_addr = i); + break; + + case SIOCAIFADDR: + maskIsNew = 0; + hostIsNew = 1; + error = 0; + if (ia->ia_addr.sin_family == AF_INET) { + if (ifra->ifra_addr.sin_len == 0) { + ifra->ifra_addr = ia->ia_addr; + hostIsNew = 0; + } else if (ifra->ifra_addr.sin_addr.s_addr == + ia->ia_addr.sin_addr.s_addr) + hostIsNew = 0; + } + if (ifra->ifra_mask.sin_len) { + in_ifscrub(ifp, ia); + ia->ia_sockmask = ifra->ifra_mask; + ia->ia_subnetmask = + ntohl(ia->ia_sockmask.sin_addr.s_addr); + maskIsNew = 1; + } + if ((ifp->if_flags & IFF_POINTOPOINT) && + (ifra->ifra_dstaddr.sin_family == AF_INET)) { + in_ifscrub(ifp, ia); + ia->ia_dstaddr = ifra->ifra_dstaddr; + maskIsNew = 1; /* We lie; but the effect's the same */ + } + if (ifra->ifra_addr.sin_family == AF_INET && + (hostIsNew || maskIsNew)) + error = in_ifinit(ifp, ia, &ifra->ifra_addr, 0); + if ((ifp->if_flags & IFF_BROADCAST) && + (ifra->ifra_broadaddr.sin_family == AF_INET)) + ia->ia_broadaddr = ifra->ifra_broadaddr; + return (error); + + case SIOCDIFADDR: + mk = malloc(sizeof *mk, M_IPMADDR, M_WAITOK); + if (!mk) + return ENOBUFS; + + in_ifscrub(ifp, ia); + /* + * Protect from ipintr() traversing address list + * while we're modifying it. + */ + s = splnet(); + + if ((ifa = ifp->if_addrlist) == (struct ifaddr *)ia) + ifp->if_addrlist = ifa->ifa_next; + else { + while (ifa->ifa_next && + (ifa->ifa_next != (struct ifaddr *)ia)) + ifa = ifa->ifa_next; + if (ifa->ifa_next) + ifa->ifa_next = ((struct ifaddr *)ia)->ifa_next; + else + printf("Couldn't unlink inifaddr from ifp\n"); + } + oia = ia; + if (oia == (ia = in_ifaddr)) + in_ifaddr = ia->ia_next; + else { + while (ia->ia_next && (ia->ia_next != oia)) + ia = ia->ia_next; + if (ia->ia_next) + ia->ia_next = oia->ia_next; + else + printf("Didn't unlink inifadr from list\n"); + } + + if (!oia->ia_multiaddrs.lh_first) { + IFAFREE(&oia->ia_ifa); + FREE(mk, M_IPMADDR); + splx(s); + break; + } + + /* + * Multicast address kludge: + * If there were any multicast addresses attached to this + * interface address, either move them to another address + * on this interface, or save them until such time as this + * interface is reconfigured for IP. + */ + IFP_TO_IA(oia->ia_ifp, ia); + if (ia) { /* there is another address */ + struct in_multi *inm; + for(inm = oia->ia_multiaddrs.lh_first; inm; + inm = inm->inm_entry.le_next) { + IFAFREE(&inm->inm_ia->ia_ifa); + ia->ia_ifa.ifa_refcnt++; + inm->inm_ia = ia; + LIST_INSERT_HEAD(&ia->ia_multiaddrs, inm, + inm_entry); + } + FREE(mk, M_IPMADDR); + } else { /* last address on this if deleted, save */ + struct in_multi *inm; + + LIST_INIT(&mk->mk_head); + mk->mk_ifp = ifp; + + for(inm = oia->ia_multiaddrs.lh_first; inm; + inm = inm->inm_entry.le_next) { + LIST_INSERT_HEAD(&mk->mk_head, inm, inm_entry); + } + + if (mk->mk_head.lh_first) { + LIST_INSERT_HEAD(&in_mk, mk, mk_entry); + } else { + FREE(mk, M_IPMADDR); + } + } + + IFAFREE((&oia->ia_ifa)); + splx(s); + break; + + default: + if (ifp == 0 || ifp->if_ioctl == 0) + return (EOPNOTSUPP); + return ((*ifp->if_ioctl)(ifp, cmd, data)); + } + return (0); +} + +/* + * Delete any existing route for an interface. + */ +static void +in_ifscrub(ifp, ia) + register struct ifnet *ifp; + register struct in_ifaddr *ia; +{ + + if ((ia->ia_flags & IFA_ROUTE) == 0) + return; + if (ifp->if_flags & (IFF_LOOPBACK|IFF_POINTOPOINT)) + rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); + else + rtinit(&(ia->ia_ifa), (int)RTM_DELETE, 0); + ia->ia_flags &= ~IFA_ROUTE; +} + +/* + * Initialize an interface's internet address + * and routing table entry. + */ +static int +in_ifinit(ifp, ia, sin, scrub) + register struct ifnet *ifp; + register struct in_ifaddr *ia; + struct sockaddr_in *sin; + int scrub; +{ + register u_long i = ntohl(sin->sin_addr.s_addr); + struct sockaddr_in oldaddr; + int s = splimp(), flags = RTF_UP, error; + struct multi_kludge *mk; + + oldaddr = ia->ia_addr; + ia->ia_addr = *sin; + /* + * Give the interface a chance to initialize + * if this is its first address, + * and to validate the address if necessary. + */ + if (ifp->if_ioctl && + (error = (*ifp->if_ioctl)(ifp, SIOCSIFADDR, (caddr_t)ia))) { + splx(s); + ia->ia_addr = oldaddr; + return (error); + } + splx(s); + if (scrub) { + ia->ia_ifa.ifa_addr = (struct sockaddr *)&oldaddr; + in_ifscrub(ifp, ia); + ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; + } + if (IN_CLASSA(i)) + ia->ia_netmask = IN_CLASSA_NET; + else if (IN_CLASSB(i)) + ia->ia_netmask = IN_CLASSB_NET; + else + ia->ia_netmask = IN_CLASSC_NET; + /* + * The subnet mask usually includes at least the standard network part, + * but may may be smaller in the case of supernetting. + * If it is set, we believe it. + */ + if (ia->ia_subnetmask == 0) { + ia->ia_subnetmask = ia->ia_netmask; + ia->ia_sockmask.sin_addr.s_addr = htonl(ia->ia_subnetmask); + } else + ia->ia_netmask &= ia->ia_subnetmask; + ia->ia_net = i & ia->ia_netmask; + ia->ia_subnet = i & ia->ia_subnetmask; + in_socktrim(&ia->ia_sockmask); + /* + * Add route for the network. + */ + ia->ia_ifa.ifa_metric = ifp->if_metric; + if (ifp->if_flags & IFF_BROADCAST) { + ia->ia_broadaddr.sin_addr.s_addr = + htonl(ia->ia_subnet | ~ia->ia_subnetmask); + ia->ia_netbroadcast.s_addr = + htonl(ia->ia_net | ~ ia->ia_netmask); + } else if (ifp->if_flags & IFF_LOOPBACK) { + ia->ia_ifa.ifa_dstaddr = ia->ia_ifa.ifa_addr; + flags |= RTF_HOST; + } else if (ifp->if_flags & IFF_POINTOPOINT) { + if (ia->ia_dstaddr.sin_family != AF_INET) + return (0); + flags |= RTF_HOST; + } + if ((error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, flags)) == 0) + ia->ia_flags |= IFA_ROUTE; + + LIST_INIT(&ia->ia_multiaddrs); + /* + * If the interface supports multicast, join the "all hosts" + * multicast group on that interface. + */ + if (ifp->if_flags & IFF_MULTICAST) { + struct in_addr addr; + + /* + * Continuation of multicast address hack: + * If there was a multicast group list previously saved + * for this interface, then we re-attach it to the first + * address configured on the i/f. + */ + for(mk = in_mk.lh_first; mk; mk = mk->mk_entry.le_next) { + if(mk->mk_ifp == ifp) { + struct in_multi *inm; + + for(inm = mk->mk_head.lh_first; inm; + inm = inm->inm_entry.le_next) { + IFAFREE(&inm->inm_ia->ia_ifa); + ia->ia_ifa.ifa_refcnt++; + inm->inm_ia = ia; + LIST_INSERT_HEAD(&ia->ia_multiaddrs, + inm, inm_entry); + } + LIST_REMOVE(mk, mk_entry); + free(mk, M_IPMADDR); + break; + } + } + + addr.s_addr = htonl(INADDR_ALLHOSTS_GROUP); + in_addmulti(&addr, ifp); + } + return (error); +} + + +/* + * Return 1 if the address might be a local broadcast address. + */ +int +in_broadcast(in, ifp) + struct in_addr in; + struct ifnet *ifp; +{ + register struct ifaddr *ifa; + u_long t; + + if (in.s_addr == INADDR_BROADCAST || + in.s_addr == INADDR_ANY) + return 1; + if ((ifp->if_flags & IFF_BROADCAST) == 0) + return 0; + t = ntohl(in.s_addr); + /* + * Look through the list of addresses for a match + * with a broadcast address. + */ +#define ia ((struct in_ifaddr *)ifa) + for (ifa = ifp->if_addrlist; ifa; ifa = ifa->ifa_next) + if (ifa->ifa_addr->sa_family == AF_INET && + (in.s_addr == ia->ia_broadaddr.sin_addr.s_addr || + in.s_addr == ia->ia_netbroadcast.s_addr || + /* + * Check for old-style (host 0) broadcast. + */ + t == ia->ia_subnet || t == ia->ia_net) && + /* + * Check for an all one subnetmask. These + * only exist when an interface gets a secondary + * address. + */ + ia->ia_subnetmask != (u_long)0xffffffff) + return 1; + return (0); +#undef ia +} +/* + * Add an address to the list of IP multicast addresses for a given interface. + */ +struct in_multi * +in_addmulti(ap, ifp) + register struct in_addr *ap; + register struct ifnet *ifp; +{ + register struct in_multi *inm; + struct ifreq ifr; + struct in_ifaddr *ia; + int s = splnet(); + + /* + * See if address already in list. + */ + IN_LOOKUP_MULTI(*ap, ifp, inm); + if (inm != NULL) { + /* + * Found it; just increment the reference count. + */ + ++inm->inm_refcount; + } + else { + /* + * New address; allocate a new multicast record + * and link it into the interface's multicast list. + */ + inm = (struct in_multi *)malloc(sizeof(*inm), + M_IPMADDR, M_NOWAIT); + if (inm == NULL) { + splx(s); + return (NULL); + } + inm->inm_addr = *ap; + inm->inm_ifp = ifp; + inm->inm_refcount = 1; + IFP_TO_IA(ifp, ia); + if (ia == NULL) { + free(inm, M_IPMADDR); + splx(s); + return (NULL); + } + inm->inm_ia = ia; + ia->ia_ifa.ifa_refcnt++; /* gain a reference */ + LIST_INSERT_HEAD(&ia->ia_multiaddrs, inm, inm_entry); + + /* + * Ask the network driver to update its multicast reception + * filter appropriately for the new address. + */ + ((struct sockaddr_in *)&ifr.ifr_addr)->sin_family = AF_INET; + ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr = *ap; + if ((ifp->if_ioctl == NULL) || + (*ifp->if_ioctl)(ifp, SIOCADDMULTI,(caddr_t)&ifr) != 0) { + LIST_REMOVE(inm, inm_entry); + IFAFREE(&ia->ia_ifa); /* release reference */ + free(inm, M_IPMADDR); + splx(s); + return (NULL); + } + /* + * Let IGMP know that we have joined a new IP multicast group. + */ + igmp_joingroup(inm); + } + splx(s); + return (inm); +} + +/* + * Delete a multicast address record. + */ +void +in_delmulti(inm) + register struct in_multi *inm; +{ + struct ifreq ifr; + int s = splnet(); + + if (--inm->inm_refcount == 0) { + /* + * No remaining claims to this record; let IGMP know that + * we are leaving the multicast group. + */ + igmp_leavegroup(inm); + /* + * Unlink from list. + */ + LIST_REMOVE(inm, inm_entry); + IFAFREE(&inm->inm_ia->ia_ifa); /* release reference */ + + /* + * Notify the network driver to update its multicast reception + * filter. + */ + ((struct sockaddr_in *)&(ifr.ifr_addr))->sin_family = AF_INET; + ((struct sockaddr_in *)&(ifr.ifr_addr))->sin_addr = + inm->inm_addr; + (*inm->inm_ifp->if_ioctl)(inm->inm_ifp, SIOCDELMULTI, + (caddr_t)&ifr); + free(inm, M_IPMADDR); + } + splx(s); +} |