#!/bin/bash # Network Interface Configuration System # Copyright (c) 1996-2005 Red Hat, Inc. all rights reserved. # # This software may be freely redistributed under the terms of the GNU # public license. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. . /etc/init.d/functions cd /etc/sysconfig/network-scripts . network-functions [ -f ../network ] && . ../network CONFIG=${1} need_config ${CONFIG} source_config # Old BOOTP variable if [ "${BOOTP}" = "yes" ]; then BOOTPROTO=bootp fi if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then DYNCONFIG=true fi # load the module associated with that device # /sbin/modprobe ${REALDEVICE} is_available ${REALDEVICE} # remap, if the device is bound with a MAC address and not the right device num # bail out, if the MAC does not fit if [ -n "${HWADDR}" ]; then FOUNDMACADDR=`get_hwaddr ${REALDEVICE}` if [ "${FOUNDMACADDR}" != "${HWADDR}" ]; then curdev=`ip -o link | awk -F ':' -vIGNORECASE=1 "/$HWADDR/ { print \\$2 }"` [ -n "$curdev" ] && rename_device "${REALDEVICE}" "${HWADDR}" "${curdev}" || { echo $"Device ${DEVICE} has different MAC address than expected, ignoring." exit 1 } fi fi if [ "${TYPE}" = "Bridge" ]; then if [ ! -x /usr/sbin/brctl ]; then echo $"Bridge support not available: brctl not found" exit 1 fi /sbin/ip link set dev ${DEVICE} down 2>/dev/null /usr/sbin/brctl delbr ${DEVICE} 2>/dev/null /usr/sbin/brctl addbr ${DEVICE} 2>/dev/null # brctl doesn't report success/failure (BZ #104408) # Test for ourselves whether it worked. if ! /usr/sbin/brctl show | LANG=C grep -q "^${DEVICE} " ; then echo $"Bridge support not available in this kernel" exit 1 fi [ -n "${DELAY}" ] && /usr/sbin/brctl setfd ${DEVICE} ${DELAY} [ -n "${GCINT}" ] && /usr/sbin/brctl setgcint ${DEVICE} ${GCINT} [ -n "${STP}" ] && /usr/sbin/brctl stp ${DEVICE} ${STP} fi if [ -n "${BRIDGE}" -a -x /usr/sbin/brctl ]; then /sbin/ip addr flush dev ${DEVICE} 2>/dev/null /sbin/ip link set dev ${DEVICE} up /usr/sbin/brctl addif ${BRIDGE} ${DEVICE} # Upon adding a device to a bridge, # it's necessary to make radvd reload its config [ -r /var/run/radvd/radvd.pid ] && kill -HUP `cat /var/run/radvd/radvd.pid` exit 0 fi # now check the real state is_available ${REALDEVICE} || { if [ "$?" = "1" ] ; then echo $"$alias device ${DEVICE} does not seem to be present, delaying initialization." exit 1 else exit 0 fi } # is the device wireless? If so, configure wireless device specifics is_wireless_device ${DEVICE} && . ./ifup-wireless # slave device? if [ "${SLAVE}" = yes -a "${ISALIAS}" = no -a "${MASTER}" != "" -a \ -x /sbin/ifenslave ]; then RFLAG="" ; [ "${RECEIVEONLY}" = yes ] && RFLAG="-r" /sbin/ip link set dev ${DEVICE} down echo $"Enslaving ${DEVICE} to ${MASTER}" ifenslave ${RFLAG} "${MASTER}" "${DEVICE}" >/dev/null 2>&1 if [ -n "$ETHTOOL_OPTS" ] ; then /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS fi exit 0 fi # Bonding initialization. For DHCP, we need to enslave the devices early, # so it can actually get an IP. if [ "${TYPE}" = "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then /sbin/ip link set dev ${DEVICE} down /sbin/ip link set dev ${DEVICE} up for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do if [ "$BOOTPROTO" = "dhcp" ]; then /sbin/ifup ${device##*/} fi done fi # this isn't the same as the MAC in the configuration filename. It is # available as a configuration option in the config file, forcing the kernel # to think an ethernet card has a different MAC address than it really has. if [ -n "${MACADDR}" ]; then ip link set dev ${DEVICE} address ${MACADDR} fi if [ -n "${MTU}" ]; then ip link set dev ${DEVICE} mtu ${MTU} fi # Remove any temporary references which were previously added to dhclient config if [ -w /etc/dhclient-${DEVICE}.conf ] && [ -x /sbin/dhclient ] ; then LC_ALL=C grep -v "# temporary RHL ifup addition" /etc/dhclient-${DEVICE}.conf > /etc/dhclient-${DEVICE}.conf.ifupnew 2> /dev/null cat /etc/dhclient-${DEVICE}.conf.ifupnew > /etc/dhclient-${DEVICE}.conf rm -f /etc/dhclient-${DEVICE}.conf.ifupnew fi if [ -n "${DYNCONFIG}" ]; then if [[ "${PERSISTENT_DHCLIENT}" = [yY1]* ]]; then ONESHOT=""; else ONESHOT="-1"; fi; if [ -n "${DHCP_HOSTNAME}" ]; then # Send a host-name to the DHCP server (requ. by some dhcp servers). if [ -x /sbin/dhclient ] ; then if [ -w /etc/dhclient-${DEVICE}.conf ] ; then if ! LC_ALL=C grep "send *host-name *\"${DHCP_HOSTNAME}\"" /etc/dhclient-${DEVICE}.conf > /dev/null 2>&1 ; then echo "send host-name \"${DHCP_HOSTNAME}\"; # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf fi elif ! [ -e /etc/dhclient-${DEVICE}.conf ] ; then echo "send host-name \"${DHCP_HOSTNAME}\"; # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf fi fi fi # allow users to use generic '/etc/dhclient.conf' (as documented in manpage!) # if per-device file doesn't exist or is empty if [ -s /etc/dhclient-${DEVICE}.conf ]; then DHCLIENTCONF="-cf /etc/dhclient-${DEVICE}.conf"; else DHCLIENTCONF=''; fi; DHCLIENTARGS="${DHCLIENTARGS} ${ONESHOT} -q ${DHCLIENTCONF} -lf /var/lib/dhcp/dhclient-${DEVICE}.leases -pf /var/run/dhclient-${DEVICE}.pid" echo echo -n $"Determining IP information for ${DEVICE}..." if check_link_down ${DEVICE}; then echo $" failed; no link present. Check cable?" ip link set dev ${DEVICE} down >/dev/null 2>&1 exit 1 fi if [ -n "$ETHTOOL_OPTS" ] ; then /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS fi if [ -x /sbin/dhclient ] && /sbin/dhclient ${DHCLIENTARGS} ${DEVICE} ; then echo $" done." else echo $" failed." exit 1 fi # DHCP likes to create duplicate routes. Fix that up. NUMDEFROUTES=`ip -o route | \ awk '/^default/ { nlines++ } END { print nlines }'` if [ -n "$NUMDEFROUTES" ] && [ "$NUMDEFROUTES" -gt 1 ]; then # remove the default route for the new device (old route wins) ip route del default dev ${DEVICE} fi # end dynamic device configuration else if [ -z "${IPADDR}" ]; then # enable device without IP, useful for e.g. PPPoE ip link set dev ${REALDEVICE} up if [ -n "$ETHTOOL_OPTS" ] ; then /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS fi # Bonding initialization part II if [ "${TYPE}" = "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do /sbin/ifup ${device##*/} done fi if [ "${NETWORKING_IPV6}" = "yes" ]; then /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} fi exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} fi expand_config [ -n "${ARP}" ] && \ ip link set dev ${REALDEVICE} $(toggle_value arp $ARP) if ! ip link set dev ${REALDEVICE} up ; then echo $"Failed to bring up ${DEVICE}." exit 1 fi if [ -n "$ETHTOOL_OPTS" ] ; then /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS fi if ! arping -q -c 2 -w 3 -D -I ${REALDEVICE} ${IPADDR} ; then echo $"Error, some other host already uses address ${IPADDR}." exit 1 fi if [ "${DEVICE}" = "lo" ]; then SCOPE="scope host" else SCOPE=${SCOPE:-} fi if [ -n "$SRCADDR" ]; then SRC="src $SRCADDR" else SRC= fi if ! LC_ALL=C ip addr ls ${REALDEVICE} | LC_ALL=C grep -q "${IPADDR}/${PREFIX}" ; then if ! ip addr add ${IPADDR}/${PREFIX} \ brd ${BROADCAST:-+} dev ${REALDEVICE} ${SCOPE} label ${DEVICE}; then echo $"Error adding address ${IPADDR} for ${DEVICE}." fi fi if [ -n "$SRCADDR" ]; then sysctl -w "net.ipv4.conf.${REALDEVICE}.arp_filter=1" >/dev/null 2>&1 fi # update ARP cache of neighboring computers arping -q -A -c 1 -I ${REALDEVICE} ${IPADDR} ( sleep 2; arping -q -U -c 1 -I ${REALDEVICE} ${IPADDR} ) > /dev/null 2>&1 < /dev/null & # Set a default route. if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${REALDEVICE}" ]; then # set up default gateway. replace if one already exists if [ -n "${GATEWAY}" -a "`ipcalc --network ${GATEWAY} ${NETMASK} 2>/dev/null`" = "NETWORK=${NETWORK}" ]; then ip route replace default via ${GATEWAY} ${WINDOW:+window $WINDOW} ${SRC} ${GATEWAYDEV:+dev $GATEWAYDEV} elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then ip route replace default ${SRC} ${WINDOW:+window $WINDOW} dev ${REALDEVICE} fi fi fi # Bonding initialization part II - for static, enslave the devices. For # DHCP, remove any routes for the slaves. if [ "${TYPE}" = "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do if [ "$BOOTPROTO" = "dhcp" ]; then DEV=$DEVICE eval $(LANG=C fgrep "DEVICE=" $device) ifenslave -d $DEV $DEVICE DEVICE=$DEV fi /sbin/ifup ${device##*/} done fi # Add Zeroconf route. if [ -z "${NOZEROCONF}" -a "${ISALIAS}" = "no" ]; then ip route replace 169.254.0.0/16 dev ${REALDEVICE} fi # IPv6 initialisation? if [ "${NETWORKING_IPV6}" = "yes" ]; then /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} if [[ "${DHCPV6C}" = [Yy1]* ]] && [ -x /sbin/dhcp6c ]; then /sbin/dhcp6c ${DEVICE}; dhcp6_pid=(`/bin/ps -eo 'pid,args' | /bin/grep "dhcp6c ${DEVICE}" | egrep -v grep`); echo ${dhcp6_pid[0]} > /var/run/dhcp6c_${DEVICE}.pid fi; fi if [ "${IPX}" = yes ]; then /etc/sysconfig/network-scripts/ifup-ipx ${DEVICE} fi exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}