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|
#!/bin/sh
#
# network Bring up/down networking
#
# chkconfig: 345 10 97
# description: Activates/Deactivates all network interfaces configured to \
# start at boot time.
# Source function library.
. /etc/rc.d/init.d/functions
if [ ! -f /etc/sysconfig/network ]; then
exit 0
fi
. /etc/sysconfig/network
if [ -f /etc/sysconfig/pcmcia ]; then
. /etc/sysconfig/pcmcia
fi
# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0
[ -x /sbin/ifconfig ] || exit 0
cd /etc/sysconfig/network-scripts
# find all the interfaces besides loopback.
# ignore aliases, alternative configurations, and editor backup files
interfaces=`ls ifcfg* | egrep -v '(ifcfg-lo|:)' | egrep 'ifcfg-[a-z0-9]+$' | \
sed 's/^ifcfg-//g'`
# See how we were called.
case "$1" in
start)
# Turn IP forwarding on or off. We do this before bringing up the
# interfaces to make sure we don't forward when we shouldn't, and
# we do it even if networking isn't configured (why not?).
if [ -d /proc/sys/net/ipv4 ]; then
# people could have left this out of their kernel, which isn't
# exactly an error
if [ ! -f /proc/sys/net/ipv4/ip_forward ] ; then
echo "/proc/sys/net/ipv4/ip_forward is missing --" \
"cannot control IP forwarding" >&2
else
if [ "$FORWARD_IPV4" = "no" -o "$FORWARD_IPV4" = "false" ]; then
value=0
message="Disabling IPv4 packet forwarding."
else
value=1
message="Enabling IPv4 packet forwarding."
fi
if [ $value != `cat /proc/sys/net/ipv4/ip_forward` ]; then
echo $message
echo "$value" > /proc/sys/net/ipv4/ip_forward
fi
fi
fi
./ifup ifcfg-lo
for i in $interfaces; do
./ifup $i boot
done
touch /var/lock/subsys/network
;;
stop)
for i in $interfaces; do
./ifdown $i boot
done
./ifdown ifcfg-lo
echo "Disabling IPv4 packet forwarding."
echo 0 > /proc/sys/net/ipv4/ip_forward
rm -f /var/lock/subsys/network
;;
status)
echo "Configured devices:"
echo lo $interfaces
if [ -x /bin/linuxconf ] ; then
eval `/bin/linuxconf --hint netdev`
echo "Devices that are down:"
echo $DEV_UP
echo "Devices with modified configuration:"
echo $DEV_RECONF
else
echo "Currently active devices:"
echo `/sbin/ifconfig | grep ^[a-z] | awk '{print $1}'`
fi
;;
restart)
$0 stop
$0 start
;;
reload)
if [ -x /bin/linuxconf ] ; then
eval `/bin/linuxconf --hint netdev`
for device in $DEV_UP ; do
./ifup $device boot
done
for device in $DEV_DOWN ; do
./ifdown $device boot
done
for device in $DEV_RECONF ; do
./ifdown $device boot
./ifup $device boot
done
else
$0 restart
fi
;;
*)
echo "Usage: network {start|stop|restart|reload|status}"
exit 1
esac
exit 0
|
