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|
#!/bin/bash
#
# network Bring up/down networking
#
# chkconfig: 2345 10 90
# description: Activates/Deactivates all network interfaces configured to \
# start at boot time.
# probe: true
# Source function library.
. /etc/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.
[ ${NETWORKING} = "no" ] && exit 0
[ -x /sbin/ifconfig ] || exit 0
# Even if IPX is configured, without the utilities we can't do much
[ ! -x /sbin/ipx_internal_net -o ! -x /sbin/ipx_configure ] && IPX=
# If IPv6 is explicitly configured, make sure it's available.
if [ "$NETWORKING_IPV6" = "yes" ]; then
alias=`modprobe -c | grep net-pf-10 | awk '{ print $2 }'`
if [ "$alias" != "ipv6" -a ! -f /proc/net/if_inet6 ]; then
echo "alias net-pf-10 ipv6" >> /etc/modules.conf
fi
fi
CWD=`pwd`
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|:|rpmsave|rpmorig|rpmnew)' | \
egrep -v '(~|\.bak)$' | \
egrep -v 'ifcfg-ippp[0-9]+$' | \
egrep 'ifcfg-[a-z0-9]+$' | \
sed 's/^ifcfg-//g'`
# See how we were called.
case "$1" in
start)
action $"Setting network parameters: " sysctl -p /etc/sysctl.conf
action $"Bringing up interface lo: " ./ifup ifcfg-lo
case "$IPX" in
yes|true)
/sbin/ipx_configure --auto_primary=$IPXAUTOPRIMARY \
--auto_interface=$IPXAUTOFRAME
if [ "$IPXINTERNALNETNUM" != "0" ]; then
/sbin/ipx_internal_net add $IPXINTERNALNETNUM $IPXINTERNALNODENUM
fi
;;
esac
oldhotplug=`sysctl kernel.hotplug | awk '{ print $3 }' 2>/dev/null`
sysctl -w kernel.hotplug="/bin/true" > /dev/null 2>&1
for i in $interfaces; do
if egrep -L "^ONBOOT=\"?[Nn][Oo]\"?" ifcfg-$i >/dev/null 2>&1 ; then
if [ "${i##eth}" != "$i" ]; then
# Probe module to preserve interface ordering
if [ -n "`modprobe -vn $i | grep -v Note:`" ]; then
/sbin/ifconfig $i >/dev/null 2>&1
fi
fi
else
# If we're in confirmation mode, get user confirmation
[ -n "$CONFIRM" ] &&
{
confirm $i
case $? in
0)
:
;;
2)
CONFIRM=
;;
*)
continue
;;
esac
}
action $"Bringing up interface $i: " ./ifup $i boot
fi
done
sysctl -w kernel.hotplug=$oldhotplug > /dev/null 2>&1
# Add non interface-specific static-routes.
if [ -f /etc/sysconfig/static-routes ]; then
grep "^any" /etc/sysconfig/static-routes | while read ignore type dest netmask mask bogus args; do
if [ "${bogus}" = "gw" ]; then
/sbin/route add -$type $dest $netmask $mask $args
else
/sbin/route add -$type $dest $netmask $mask $bogus $args
fi
done
fi
touch /var/lock/subsys/network
;;
stop)
# If this is a final shutdown/halt, check for network FS,
# and unmount them even if the user didn't turn on netfs
if [ "$RUNLEVEL" = "6" -o "$RUNLEVEL" = "0" -o "$RUNLEVEL" = "1" ]; then
NFSMTAB=`grep -v '^#' /proc/mounts | awk '{ if ($3 ~ /^nfs$/ ) print $2}'`
SMBMTAB=`grep -v '^#' /proc/mounts | awk '{ if ($3 ~ /^smbfs$/ ) print $2}'`
NCPMTAB=`grep -v '^#' /proc/mounts | awk '{ if ($3 ~ /^ncpfs$/ ) print $2}'`
if [ -n "$NFSMTAB" -o -n "$SMBMTAB" -o -n "$NCPMTAB" ] ; then
/etc/init.d/netfs stop
fi
fi
for i in $interfaces ; do
if LC_ALL= LANG= ifconfig $i 2>/dev/null | grep -q " UP " >/dev/null 2>&1 ; then
action $"Shutting down interface $i: " ./ifdown $i boot
fi
done
case "$IPX" in
yes|true)
if [ "$IPXINTERNALNETNUM" != "0" ]; then
/sbin/ipx_internal_net del
fi
;;
esac
./ifdown ifcfg-lo
if [ -d /proc/sys/net/ipv4 ]; then
if [ -f /proc/sys/net/ipv4/ip_forward ]; then
if [ `cat /proc/sys/net/ipv4/ip_forward` != 0 ]; then
action $"Disabling IPv4 packet forwarding: " sysctl -w net.ipv4.ip_forward=0
fi
fi
if [ -f /proc/sys/net/ipv4/ip_always_defrag ]; then
if [ `cat /proc/sys/net/ipv4/ip_always_defrag` != 0 ]; then
action $"Disabling IPv4 automatic defragmentation: " sysctl -w net.ipv4.ip_always_defrag=0
fi
fi
fi
rm -f /var/lock/subsys/network
;;
status)
echo $"Configured devices:"
echo lo $interfaces
if [ -x /sbin/linuxconf ] ; then
eval `/sbin/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)
cd $CWD
$0 stop
$0 start
;;
reload)
if [ -x /sbin/linuxconf ] ; then
eval `/sbin/linuxconf --hint netdev`
for device in $DEV_UP ; do
action $"Bringing up device %s: " $device ./ifup $device
done
for device in $DEV_DOWN ; do
action $"Shutting down device %s: " $device ./ifdown $device
done
for device in $DEV_RECONF ; do
action $"Shutting down device %s: " $device ./ifdown $device
action $"Bringing up device %s: " $device ./ifup $device
done
for device in $DEV_RECONF_ALIASES ; do
action $"Bringing up alias %s: " $device /etc/sysconfig/network-scripts/ifup-aliases $device
done
for device in $DEV_RECONF_ROUTES ; do
action $"Bringing up route %s: " $device /etc/sysconfig/network-scripts/ifup-routes $device
done
case $IPX in yes|true)
case $IPXINTERNALNET in
reconf)
action $"Deleting internal IPX network: " /sbin/ipx_internal_net del
action $"Adding internal IPX network %s %s: " $IPXINTERNALNETNUM $IPXINTERNALNODENUM /sbin/ipx_internal_net add $IPXINTERNALNETNUM \
$IPXINTERNALNODENUM
;;
add)
action $"Adding internal IPX network $IPXINTERNALNETNUM $IPXINTERNALNODENUM: "/sbin/ipx_internal_net add $IPXINTERNALNETNUM \
$IPXINTERNALNODENUM
;;
del)
action $"Deleting internal IPX network: " /sbin/ipx_internal_net del
;;
esac
;;
esac
else
cd $CWD
$0 restart
fi
;;
probe)
if [ -x /sbin/linuxconf ] ; then
eval `/sbin/linuxconf --hint netdev`
[ -n "$DEV_UP$DEV_DOWN$DEV_RECONF$DEV_RECONF_ALIASES" -o \
-n "$DEV_RECONF_ROUTES$IPXINTERNALNET" ] && \
echo reload
exit 0
else
# if linuxconf isn't around to figure stuff out for us,
# we punt. Probably better than completely reloading
# networking if user isn't sure which to do. If user
# is sure, they would run restart or reload, not probe.
exit 0
fi
;;
*)
echo $"Usage: $0 {start|stop|restart|reload|status|probe}"
exit 1
esac
exit 0
|
