+++ /dev/null
-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1984, 1985, 1986, 1987, 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.
- *
- * @(#)ns.c 8.2 (Berkeley) 11/15/93
- */
-
-#include <sys/param.h>
-#include <sys/mbuf.h>
-#include <sys/ioctl.h>
-#include <sys/protosw.h>
-#include <sys/errno.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-
-#include <net/if.h>
-#include <net/route.h>
-
-#include <netns/ns.h>
-#include <netns/ns_if.h>
-
-#ifdef NS
-
-struct ns_ifaddr *ns_ifaddr;
-int ns_interfaces;
-extern struct sockaddr_ns ns_netmask, ns_hostmask;
-
-/*
- * Generic internet control operations (ioctl's).
- */
-/* ARGSUSED */
-ns_control(so, cmd, data, ifp)
- struct socket *so;
- int cmd;
- caddr_t data;
- register struct ifnet *ifp;
-{
- register struct ifreq *ifr = (struct ifreq *)data;
- register struct ns_aliasreq *ifra = (struct ns_aliasreq *)data;
- register struct ns_ifaddr *ia;
- struct ifaddr *ifa;
- struct ns_ifaddr *oia;
- int error, dstIsNew, hostIsNew;
-
- /*
- * Find address for this interface, if it exists.
- */
- if (ifp == 0)
- return (EADDRNOTAVAIL);
- for (ia = ns_ifaddr; ia; ia = ia->ia_next)
- if (ia->ia_ifp == ifp)
- break;
-
- switch (cmd) {
-
- case SIOCGIFADDR:
- if (ia == (struct ns_ifaddr *)0)
- return (EADDRNOTAVAIL);
- *(struct sockaddr_ns *)&ifr->ifr_addr = ia->ia_addr;
- return (0);
-
-
- case SIOCGIFBRDADDR:
- if (ia == (struct ns_ifaddr *)0)
- return (EADDRNOTAVAIL);
- if ((ifp->if_flags & IFF_BROADCAST) == 0)
- return (EINVAL);
- *(struct sockaddr_ns *)&ifr->ifr_dstaddr = ia->ia_broadaddr;
- return (0);
-
- case SIOCGIFDSTADDR:
- if (ia == (struct ns_ifaddr *)0)
- return (EADDRNOTAVAIL);
- if ((ifp->if_flags & IFF_POINTOPOINT) == 0)
- return (EINVAL);
- *(struct sockaddr_ns *)&ifr->ifr_dstaddr = ia->ia_dstaddr;
- return (0);
- }
-
- if ((so->so_state & SS_PRIV) == 0)
- return (EPERM);
-
- switch (cmd) {
- case SIOCAIFADDR:
- case SIOCDIFADDR:
- if (ifra->ifra_addr.sns_family == AF_NS)
- for (oia = ia; ia; ia = ia->ia_next) {
- if (ia->ia_ifp == ifp &&
- ns_neteq(ia->ia_addr.sns_addr,
- ifra->ifra_addr.sns_addr))
- break;
- }
- if (cmd == SIOCDIFADDR && ia == 0)
- return (EADDRNOTAVAIL);
- /* FALLTHROUGH */
-
- case SIOCSIFADDR:
- case SIOCSIFDSTADDR:
- if (ia == (struct ns_ifaddr *)0) {
-// oia = (struct ns_ifaddr *)
-// malloc(sizeof *ia, M_IFADDR, M_WAITOK);
- MALLOC(oia, struct ns_ifaddr *, sizeof *ia, M_IFADDR, M_WAITOK);
- if (oia == (struct ns_ifaddr *)NULL)
- return (ENOBUFS);
- bzero((caddr_t)oia, sizeof(*oia));
- if (ia = ns_ifaddr) {
- for ( ; ia->ia_next; ia = ia->ia_next)
- ;
- ia->ia_next = oia;
- } else
- ns_ifaddr = oia;
- ia = oia;
- if (ifa = ifp->if_addrlist) {
- for ( ; ifa->ifa_next; ifa = ifa->ifa_next)
- ;
- ifa->ifa_next = (struct ifaddr *) ia;
- } else
- ifp->if_addrlist = (struct ifaddr *) ia;
- ia->ia_ifp = ifp;
- ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr;
-
- ia->ia_ifa.ifa_netmask =
- (struct sockaddr *)&ns_netmask;
-
- ia->ia_ifa.ifa_dstaddr =
- (struct sockaddr *)&ia->ia_dstaddr;
- if (ifp->if_flags & IFF_BROADCAST) {
- ia->ia_broadaddr.sns_family = AF_NS;
- ia->ia_broadaddr.sns_len = sizeof(ia->ia_addr);
- ia->ia_broadaddr.sns_addr.x_host = ns_broadhost;
- }
- ns_interfaces++;
- }
- }
-
- switch (cmd) {
- int error;
-
- case SIOCSIFDSTADDR:
- if ((ifp->if_flags & IFF_POINTOPOINT) == 0)
- return (EINVAL);
- if (ia->ia_flags & IFA_ROUTE) {
- rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST);
- ia->ia_flags &= ~IFA_ROUTE;
- }
- if (ifp->if_ioctl) {
- error = (*ifp->if_ioctl)(ifp, SIOCSIFDSTADDR, ia);
- if (error)
- return (error);
- }
- *(struct sockaddr *)&ia->ia_dstaddr = ifr->ifr_dstaddr;
- return (0);
-
- case SIOCSIFADDR:
- return (ns_ifinit(ifp, ia,
- (struct sockaddr_ns *)&ifr->ifr_addr, 1));
-
- case SIOCDIFADDR:
- ns_ifscrub(ifp, ia);
- 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 nsifaddr from ifp\n");
- }
- oia = ia;
- if (oia == (ia = ns_ifaddr)) {
- ns_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 nsifadr from list\n");
- }
- IFAFREE((&oia->ia_ifa));
- if (0 == --ns_interfaces) {
- /*
- * We reset to virginity and start all over again
- */
- ns_thishost = ns_zerohost;
- }
- return (0);
-
- case SIOCAIFADDR:
- dstIsNew = 0; hostIsNew = 1;
- if (ia->ia_addr.sns_family == AF_NS) {
- if (ifra->ifra_addr.sns_len == 0) {
- ifra->ifra_addr = ia->ia_addr;
- hostIsNew = 0;
- } else if (ns_neteq(ifra->ifra_addr.sns_addr,
- ia->ia_addr.sns_addr))
- hostIsNew = 0;
- }
- if ((ifp->if_flags & IFF_POINTOPOINT) &&
- (ifra->ifra_dstaddr.sns_family == AF_NS)) {
- if (hostIsNew == 0)
- ns_ifscrub(ifp, ia);
- ia->ia_dstaddr = ifra->ifra_dstaddr;
- dstIsNew = 1;
- }
- if (ifra->ifra_addr.sns_family == AF_NS &&
- (hostIsNew || dstIsNew))
- error = ns_ifinit(ifp, ia, &ifra->ifra_addr, 0);
- return (error);
-
- default:
- if (ifp->if_ioctl == 0)
- return (EOPNOTSUPP);
- return ((*ifp->if_ioctl)(ifp, cmd, data));
- }
-}
-
-/*
-* Delete any previous route for an old address.
-*/
-ns_ifscrub(ifp, ia)
- register struct ifnet *ifp;
- register struct ns_ifaddr *ia;
-{
- if (ia->ia_flags & IFA_ROUTE) {
- if (ifp->if_flags & 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.
- */
-ns_ifinit(ifp, ia, sns, scrub)
- register struct ifnet *ifp;
- register struct ns_ifaddr *ia;
- register struct sockaddr_ns *sns;
-{
- struct sockaddr_ns oldaddr;
- register union ns_host *h = &ia->ia_addr.sns_addr.x_host;
- int s = splimp(), error;
-
- /*
- * Set up new addresses.
- */
- oldaddr = ia->ia_addr;
- ia->ia_addr = *sns;
- /*
- * The convention we shall adopt for naming is that
- * a supplied address of zero means that "we don't care".
- * if there is a single interface, use the address of that
- * interface as our 6 byte host address.
- * if there are multiple interfaces, use any address already
- * used.
- *
- * Give the interface a chance to initialize
- * if this is its first address,
- * and to validate the address if necessary.
- */
- if (ns_hosteqnh(ns_thishost, ns_zerohost)) {
- if (ifp->if_ioctl &&
- (error = (*ifp->if_ioctl)(ifp, SIOCSIFADDR, ia))) {
- ia->ia_addr = oldaddr;
- splx(s);
- return (error);
- }
- ns_thishost = *h;
- } else if (ns_hosteqnh(sns->sns_addr.x_host, ns_zerohost)
- || ns_hosteqnh(sns->sns_addr.x_host, ns_thishost)) {
- *h = ns_thishost;
- if (ifp->if_ioctl &&
- (error = (*ifp->if_ioctl)(ifp, SIOCSIFADDR, ia))) {
- ia->ia_addr = oldaddr;
- splx(s);
- return (error);
- }
- if (!ns_hosteqnh(ns_thishost,*h)) {
- ia->ia_addr = oldaddr;
- splx(s);
- return (EINVAL);
- }
- } else {
- ia->ia_addr = oldaddr;
- splx(s);
- return (EINVAL);
- }
- ia->ia_ifa.ifa_metric = ifp->if_metric;
- /*
- * Add route for the network.
- */
- if (scrub) {
- ia->ia_ifa.ifa_addr = (struct sockaddr *)&oldaddr;
- ns_ifscrub(ifp, ia);
- ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr;
- }
- if (ifp->if_flags & IFF_POINTOPOINT)
- rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP);
- else {
- ia->ia_broadaddr.sns_addr.x_net = ia->ia_addr.sns_addr.x_net;
- rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_UP);
- }
- ia->ia_flags |= IFA_ROUTE;
- return (0);
-}
-
-/*
- * Return address info for specified internet network.
- */
-struct ns_ifaddr *
-ns_iaonnetof(dst)
- register struct ns_addr *dst;
-{
- register struct ns_ifaddr *ia;
- register struct ns_addr *compare;
- register struct ifnet *ifp;
- struct ns_ifaddr *ia_maybe = 0;
- union ns_net net = dst->x_net;
-
- for (ia = ns_ifaddr; ia; ia = ia->ia_next) {
- if (ifp = ia->ia_ifp) {
- if (ifp->if_flags & IFF_POINTOPOINT) {
- compare = &satons_addr(ia->ia_dstaddr);
- if (ns_hosteq(*dst, *compare))
- return (ia);
- if (ns_neteqnn(net, ia->ia_addr.sns_addr.x_net))
- ia_maybe = ia;
- } else {
- if (ns_neteqnn(net, ia->ia_addr.sns_addr.x_net))
- return (ia);
- }
- }
- }
- return (ia_maybe);
-}
-#endif
projects / apple / xnu.git / blobdiff