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#!/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 ${MTU}
fi
if [ -n "${DYNCONFIG}" -a -x /sbin/dhclient ]; then
# Remove any temporary references which were previously added to dhclient config
if [ -w /etc/dhclient-${DEVICE}.conf ] ; then
LC_ALL=C grep -v "# temporary RHL ifup addition" /etc/dhclient-${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 [[ "${PERSISTENT_DHCLIENT}" = [yY1]* ]]; then
ONESHOT="";
else
ONESHOT="-1";
fi;
if [ -n "${DHCP_HOSTNAME}" ]; then
# Send a host-name to the DHCP server (requ. by some dhcp servers).
if [ -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
# 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 /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}
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