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|
#!/bin/bash
# Network Interface Configuration System
# Copyright (c) 1996-2009 Red Hat, Inc. all rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
. /etc/init.d/functions
cd /etc/sysconfig/network-scripts
. ./network-functions
[ -f /etc/sysconfig/network ] && . /etc/sysconfig/network
CONFIG=${1}
boot=$2
daemon=
[ "foo${boot}" = "fooboot" -o "foo${boot}" = "foodaemon" ] && daemon=1
source_config
. /etc/sysconfig/network
# Check to make sure the device is actually up
check_device_down ${DEVICE} && [ "$BOOTPROTO" != "dhcp" -a "$BOOTPROTO" != "bootp" ] && [ -n "$VLAN" -a "$VLAN" != "yes" ] && exit 0
if [ "${SLAVE}" != "yes" -o -z "${MASTER}" ]; then
if [ -n "${HWADDR}" -a -z "${MACADDR}" ]; then
FOUNDMACADDR=$(get_hwaddr ${REALDEVICE})
if [ -n "${FOUNDMACADDR}" -a "${FOUNDMACADDR}" != "${HWADDR}" ]; then
NEWCONFIG=$(get_config_by_hwaddr ${FOUNDMACADDR})
if [ -n "${NEWCONFIG}" ]; then
eval $(LANG=C grep -F "DEVICE=" $NEWCONFIG)
else
net_log $"Device ${DEVICE} has MAC address ${FOUNDMACADDR}, instead of configured address ${HWADDR}. Ignoring."
exit 1
fi
if [ -n "${NEWCONFIG}" -a "${NEWCONFIG##*/}" != "${CONFIG##*/}" -a "${DEVICE}" = "${REALDEVICE}" ]; then
exec /sbin/ifdown ${NEWCONFIG}
else
net_log $"Device ${DEVICE} has MAC address ${FOUNDMACADDR}, instead of configured address ${HWADDR}. Ignoring."
exit 1
fi
fi
fi
fi
if is_bonding_device ${DEVICE} ; then
for device in $(LANG=C grep -l "^[[:space:]]*MASTER=\"\?${DEVICE}\"\?\([[:space:]#]\|$\)" /etc/sysconfig/network-scripts/ifcfg-*) ; do
is_ignored_file "$device" && continue
/sbin/ifdown ${device##*/}
done
for arg in $BONDING_OPTS ; do
key=${arg%%=*};
[[ "${key}" != "arp_ip_target" ]] && continue
value=${arg##*=};
if [ "${value:0:1}" != "" ]; then
OLDIFS=$IFS;
IFS=',';
for arp_ip in $value; do
if grep -q $arp_ip /sys/class/net/${DEVICE}/bonding/arp_ip_target; then
echo "-$arp_ip" > /sys/class/net/${DEVICE}/bonding/arp_ip_target
fi
done
IFS=$OLDIFS;
else
value=${value#+};
if grep -q $value /sys/class/net/${DEVICE}/bonding/arp_ip_target; then
echo "-$value" > /sys/class/net/${DEVICE}/bonding/arp_ip_target
fi
fi
done
fi
/etc/sysconfig/network-scripts/ifdown-ipv6 ${CONFIG}
if [[ "${DHCPV6C}" = [Yy1]* ]] && [ -f /var/run/dhcp6c_${DEVICE}.pid ]; then
kill $(cat /var/run/dhcp6c_${DEVICE}.pid);
rm -f /var/run/dhcp6c_${DEVICE}.pid;
fi
retcode=0
[ -n "$(pidof -x dhclient)" ] && {
for VER in "" 6 ; do
if [ -f "/var/run/dhclient$VER-${DEVICE}.pid" ]; then
dhcpid=$(cat /var/run/dhclient$VER-${DEVICE}.pid)
generate_lease_file_name $VER
if [[ "$DHCPRELEASE" = [yY1]* ]]; then
/sbin/dhclient -r -lf ${LEASEFILE} -pf /var/run/dhclient$VER-${DEVICE}.pid ${DEVICE} >/dev/null 2>&1
retcode=$?
else
kill $dhcpid >/dev/null 2>&1
retcode=$?
reason=STOP$VER interface=${DEVICE} /sbin/dhclient-script
fi
if [ -f "/var/run/dhclient$VER-${DEVICE}.pid" ]; then
rm -f /var/run/dhclient$VER-${DEVICE}.pid
kill $dhcpid >/dev/null 2>&1
fi
fi
done
}
# Kill running dhcp client if present (supports more clients than the above)
dhcp_client_pids() {
CLIENTS='dhcpcd|pump|dhcpxd|dhclient|zcip'
[ -n "${daemon}" -o "$MII_NOT_SUPPORTED" = "yes" ] && CLIENTS="${CLIENTS}|wpa_supplicant"
ps xw | egrep "${CLIENTS}" | grep ${DEVICE} | awk '{print $1;}'
}
if [ -n "${daemon}" -a "$MII_NOT_SUPPORTED" != "yes" ]; then
# use ifplugd -k -W to wait for it to be killed
/sbin/ifplugd -k -W -i ${DEVICE}
fi
pids=`dhcp_client_pids`
if [ -n "$pids" ]; then
kill $pids
retcode=$?
waited=0
while ! dhcp_client_pids > /dev/null && [ "$waited" -lt 50 ] ; do
usleep 10000
waited=$(($waited+1))
done
fi
# we can't just delete the configured address because that address
# may have been changed in the config file since the device was
# brought up. Flush all addresses associated with this
# instance instead.
if [ -d "/sys/class/net/${REALDEVICE}" ]; then
if [ "${REALDEVICE}" = "${DEVICE}" ]; then
ip addr flush dev ${REALDEVICE} scope global 2>/dev/null
else
ip addr flush dev ${REALDEVICE} label ${DEVICE} scope global 2>/dev/null
fi
if [ "${SLAVE}" = "yes" -a -n "${MASTER}" ]; then
echo "-${DEVICE}" > /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null
fi
# Remove ip addresses from kernel
for ip in `ip addr show | egrep ${DEVICE}\$ | grep inet | awk '{print $2;}'`; do
ip addr del $ip dev ${DEVICE}
done
if [ "${REALDEVICE}" = "${DEVICE}" ]; then
ip link set dev ${DEVICE} down 2>/dev/null
fi
fi
[ "$retcode" = "0" ] && retcode=$?
if [ -n "${BRIDGE}" ] && [ -x /usr/sbin/brctl ]; then
/sbin/ip link set dev ${DEVICE} down
/usr/sbin/brctl delif -- ${BRIDGE} ${DEVICE}
# Upon removing a device from a bridge,
# it's necessary to make radvd reload its config
[ -r /var/run/radvd/radvd.pid ] && kill -HUP $(cat /var/run/radvd/radvd.pid)
if [ -d /sys/class/net/${BRIDGE}/brif ] && [ $(ls -1 /sys/class/net/${BRIDGE}/brif | wc -l) -eq 0 ]; then
/usr/sbin/brctl delbr -- ${BRIDGE}
fi
fi
if [ "${TYPE}" = "Tap" ]; then
TUNMODE="mode tap"
[[ ${DEVICE} == tun* ]] && TUNMODE="mode tun"
ip tuntap del ${TUNMODE} dev ${DEVICE} >/dev/null
fi
# wait up to 5 seconds for device to actually come down...
waited=0
while ! check_device_down ${DEVICE} && [ "$waited" -lt 50 ] ; do
usleep 10000
waited=$(($waited+1))
done
# don't leave an outdated key sitting around
if [ -z "$IN_HOTPLUG" -a -n "${WIRELESS_ENC_KEY}" -a -x /sbin/iwconfig ]; then
/sbin/iwconfig ${DEVICE} enc 0 >/dev/null 2>&1
fi
if [ "$retcode" = 0 ] ; then
/etc/sysconfig/network-scripts/ifdown-post $CONFIG
# do NOT use $? because ifdown should return whether or not
# the interface went down.
fi
if [ -n "$VLAN" ]; then
# 802.1q VLAN
if [ -f /proc/net/vlan/${DEVICE} ]; then
ip link delete ${DEVICE} type vlan
fi
fi
exit $retcode
|
