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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.
#
### BEGIN INIT INFO
# Provides: $network
# Should-Start: iptables ip6tables
# Short-Description: Bring up/down networking
# Description: Bring up/down networking
### END INIT INFO
# Source function library.
. /etc/init.d/functions
if [ ! -f /etc/sysconfig/network ]; then
exit 6
fi
. /etc/sysconfig/network
if [ -f /etc/sysconfig/pcmcia ]; then
. /etc/sysconfig/pcmcia
fi
# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 6
# if the ip configuration utility isn't around we can't function.
[ -x /sbin/ip ] || exit 1
CWD=$(pwd)
cd /etc/sysconfig/network-scripts
. ./network-functions
# find all the interfaces besides loopback.
# ignore aliases, alternative configurations, and editor backup files
interfaces=$(ls ifcfg* | \
LANG=C sed -e "$__sed_discard_ignored_files" \
-e '/\(ifcfg-lo$\|:\|ifcfg-.*-range\)/d' \
-e '/ifcfg-[A-Za-z0-9#\._-]\+$/ { s/^ifcfg-//g;s/[0-9]/ &/}' | \
LANG=C sort -k 1,1 -k 2n | \
LANG=C sed 's/ //')
rc=0
# See how we were called.
case "$1" in
start)
[ "$EUID" != "0" ] && exit 4
rc=0
# IPv6 hook (pre IPv4 start)
if [ -x /etc/sysconfig/network-scripts/init.ipv6-global ]; then
/etc/sysconfig/network-scripts/init.ipv6-global start pre
fi
apply_sysctl
# bring up loopback interface
action $"Bringing up loopback interface: " ./ifup ifcfg-lo
case "$VLAN" in
yes)
if [ ! -d /proc/net/vlan ] && ! modprobe 8021q >/dev/null 2>&1 ; then
net_log $"No 802.1Q VLAN support available in kernel."
fi
;;
esac
vlaninterfaces=""
xdslinterfaces=""
bridgeinterfaces=""
# bring up all other interfaces configured to come up at boot time
for i in $interfaces; do
unset DEVICE TYPE SLAVE
eval $(LANG=C fgrep "DEVICE=" ifcfg-$i)
eval $(LANG=C fgrep "TYPE=" ifcfg-$i)
eval $(LANG=C fgrep "SLAVE=" ifcfg-$i)
if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi
if [ "$SLAVE" = "yes" ]; then
continue
fi
if [ "$TYPE" = "xDSL" ]; then
xdslinterfaces="$xdslinterfaces $i"
continue
fi
if [ "$TYPE" = "Bridge" ]; then
bridgeinterfaces="$bridgeinterfaces $i"
continue
fi
if [ "${DEVICE%%.*}" != "$DEVICE" -o "${DEVICE##vlan}" != "$DEVICE" ] ; then
vlaninterfaces="$vlaninterfaces $i"
continue
fi
if LANG=C egrep -L "^ONBOOT=['\"]?[Nn][Oo]['\"]?" ifcfg-$i > /dev/null ; then
# this loads the module, to preserve ordering
is_available $i
continue
fi
# If we're in confirmation mode, get user confirmation.
if [ -f /var/run/confirm ]; then
confirm $i
test $? = 1 && continue
fi
action $"Bringing up interface $i: " ./ifup $i boot
[ $? -ne 0 ] && rc=1
done
# Bring up xDSL and VPN interfaces
for i in $vlaninterfaces $bridgeinterfaces $xdslinterfaces ; do
if ! LANG=C egrep -L "^ONBOOT=['\"]?[Nn][Oo]['\"]?" ifcfg-$i >/dev/null 2>&1 ; then
# If we're in confirmation mode, get user confirmation.
if [ -f /var/run/confirm ]; then
confirm $i
test $? = 1 && continue
fi
action $"Bringing up interface $i: " ./ifup $i boot
[ $? -ne 0 ] && rc=1
fi
done
# Add non interface-specific static-routes.
if [ -f /etc/sysconfig/static-routes ]; then
grep "^any" /etc/sysconfig/static-routes | while read ignore args ; do
/sbin/route add -$args
done
fi
# Add non interface-specific static arp entries.
if [ -f /etc/ethers ]; then
/sbin/arp -f /etc/ethers
fi
# IPv6 hook (post IPv4 start)
if [ -x /etc/sysconfig/network-scripts/init.ipv6-global ]; then
/etc/sysconfig/network-scripts/init.ipv6-global start post
fi
# Run this again to catch any interface-specific actions
apply_sysctl
touch /var/lock/subsys/network
[ -n "${NETWORKDELAY}" ] && /bin/sleep ${NETWORKDELAY}
;;
stop)
[ "$EUID" != "0" ] && exit 4
# Don't shut the network down if root is on NFS or a network
# block device.
rootfs=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/" && $3 != "rootfs") { print $3; }}' /proc/mounts)
rootopts=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $4; }}' /etc/mtab)
if [[ "$rootfs" == nfs* || "$rootopts" =~ _r?netdev ]] ; then
exit 1
fi
# If this is a final shutdown/halt, check for network FS,
# and unmount them even if the user didn't turn on netfs
if [ "$RUNLEVEL" = "6" -o "$RUNLEVEL" = "0" -o "$RUNLEVEL" = "1" ]; then
NETMOUNTS=$(findmnt -m -t nfs,nfs4,smbfs,ncpfs,cifs 2>/dev/null)
if [ -n "$NETMOUNTS" ] ; then
/etc/init.d/netfs stop
fi
fi
vlaninterfaces=""
xdslinterfaces=""
bridgeinterfaces=""
remaining=""
rc=0
# get list of bonding, vpn, and xdsl interfaces
for i in $interfaces; do
unset DEVICE TYPE
eval $(LANG=C fgrep "DEVICE=" ifcfg-$i)
eval $(LANG=C fgrep "TYPE=" ifcfg-$i)
if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi
if [ "$TYPE" = "Bridge" ]; then
bridgeinterfaces="$bridgeinterfaces $i"
continue
fi
if [ "$TYPE" = "xDSL" ]; then
xdslinterfaces="$xdslinterfaces $i"
continue
fi
if [ "${DEVICE%%.*}" != "$DEVICE" -o "${DEVICE##vlan}" != "$DEVICE" ] ; then
vlaninterfaces="$vlaninterfaces $i"
continue
fi
remaining="$remaining $i"
done
for i in $xdslinterfaces $bridgeinterfaces $vlaninterfaces $remaining; do
(. ./ifcfg-$i
if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi
if ! check_device_down $DEVICE; then
action $"Shutting down interface $i: " ./ifdown $i boot
[ $? -ne 0 ] && rc=1
fi
)
done
action $"Shutting down loopback interface: " ./ifdown ifcfg-lo
sysctl -w net.ipv4.ip_forward=0 > /dev/null 2>&1
# IPv6 hook (post IPv4 stop)
if [ -x /etc/sysconfig/network-scripts/init.ipv6-global ]; then
/etc/sysconfig/network-scripts/init.ipv6-global stop post
fi
rm -f /var/lock/subsys/network
;;
status)
echo $"Configured devices:"
echo lo $interfaces
echo $"Currently active devices:"
echo $(/sbin/ip -o link show up | awk -F ": " '{ print $2 }')
;;
restart|reload|force-reload)
cd "$CWD"
$0 stop
$0 start
rc=$?
;;
*)
echo $"Usage: $0 {start|stop|status|restart|reload|force-reload}"
exit 2
esac
exit $rc
|
