#! /bin/bash
#
# network Bring up/down networking
#
# chkconfig: - 10 90
# description: Activates/Deactivates all network interfaces configured to \
# start at boot time.
# probe: false
#
### BEGIN INIT INFO
# Provides: network
# Should-Start: irda resolvconf iptables ip6tables NetworkManager
# Should-Stop: irda resolvconf
# Default-Start: 2 3 4 5
# Short-Description: Bring up/down networking
# Description: Activates/Deactivates all network interfaces configured to
# start at boot time.
### END INIT INFO
# Source function library.
. /etc/init.d/functions
if [ ! -f /etc/sysconfig/network ]; then
echo "NETWORKING=no" > /etc/sysconfig/network
exit 6
fi
. /etc/sysconfig/network
if [ -f /etc/sysconfig/pcmcia ]; then
. /etc/sysconfig/pcmcia
fi
# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 6
# if the ip configuration utility isn't around we can't function.
[ -x /sbin/ip ] || exit 1
# Even if IPX is configured, without the utilities we can't do much
[ ! -x /sbin/ipx_internal_net ] || [ ! -x /sbin/ipx_configure ] && IPX=
CWD=$(pwd)
cd /etc/sysconfig/network-scripts
. ./network-functions
# find all the interfaces besides loopback.
# ignore aliases, alternative configurations, and editor backup files
interfaces=$(/bin/ls ifcfg* | \
LC_ALL=C sed -e "$__sed_discard_ignored_files" \
-e '/\(ifcfg-lo$\|:\|ifcfg-.*-range\)/d' \
-e '/ifcfg-[ A-Za-z0-9#\._-]\+$/ { s/^ifcfg-//g;s/[0-9]/ &/}' | \
LC_ALL=C grep -v '^ifcfg-' | \
LC_ALL=C sort -k 1,1 -k 2n | \
LC_ALL=C sed -e 's/ \([0-9]\)/\1/')
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
if [ -r /etc/ethers -a -x /sbin/arp ]; then
action "Storing ARP mapping" /sbin/arp -f /etc/ethers
fi
# bring up loopback interface
action "Bringing up loopback interface: " ./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 $IPXINTERNALNODENUM
fi
;;
esac
# depreciated but we still use it.
if [ -f /proc/sys/net/ipv4/ip_forward ] && [[ "$FORWARD_IPV4" = "yes" || "$FORWARD_IPV4" = "true" ]];
then
action "Enabling IPv4 packet forwarding" sysctl -w net.ipv4.ip_forward=1
fi
case "$VLAN" in
yes)
if [ ! -d /proc/net/vlan ] && ! modprobe 8021q >/dev/null 2>&1 ; then
gprintf "No 802.1Q VLAN support available in kernel.\n"
fi
;;
esac
vlaninterfaces=""
vpninterfaces=""
xdslinterfaces=""
bridgeinterfaces=""
# do we have wireless cards?
iwconfig 2>/dev/null | grep IEEE > /dev/null
has_wifi=$?
# configure CRDA domain
if [ -n "${CRDA_DOMAIN}" -a -x /sbin/iw -a "$has_wifi" == 0 ]; then
action "Configuring wireless regulatory domain " /sbin/iw reg set ${CRDA_DOMAIN}
fi
# bring up all other interfaces configured to come up at boot time
for i in $interfaces; do
unset DEVICE TYPE SLAVE
eval $(LANG=C grep -F "DEVICE=" "ifcfg-$i")
eval $(LANG=C grep -F "TYPE=" "ifcfg-$i")
eval $(LANG=C grep -F "SLAVE=" "ifcfg-$i")
if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi
if [ "$SLAVE" = "yes" ]; then
continue
fi
if [ "$TYPE" = "Wireless" ]; then
continue
fi
if [ "${DEVICE##cipcb}" != "$DEVICE" ] ; then
vpninterfaces="$vpninterfaces $i"
continue
fi
if [ "$TYPE" = "xDSL" -o "$TYPE" = "ADSL" ]; then
xdslinterfaces="$xdslinterfaces $i"
continue
fi
if [ "$TYPE" = "Bridge" ]; then
bridgeinterfaces="$bridgeinterfaces $i"
continue
fi
if [ "$TYPE" = "IPSEC" ]; then
vpninterfaces="$vpninterfaces $i"
continue
fi
if [ "${DEVICE%%.*}" != "$DEVICE" -o "${DEVICE##vlan}" != "$DEVICE" ] ; then
vlaninterfaces="$vlaninterfaces $i"
continue
fi
if LANG=C grep -EL "^ONBOOT=['\"]?[Nn][Oo]['\"]?" "ifcfg-$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.
[ -f /var/run/confirm ] &&
{
confirm $i
case $? in
0)
:
;;
2)
CONFIRM=
;;
*)
continue
;;
esac
}
action "Bringing up interface %s: " $i ./ifup $DEVICE boot
[ $? -ne 0 ] && rc=1
done
# Bring up xDSL and VPN interfaces
for i in $vlaninterfaces $bridgeinterfaces $xdslinterfaces $vpninterfaces ; do
if ! LANG=C grep -EL "^ONBOOT=['\"]?[Nn][Oo]['\"]?" "ifcfg-$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 %s: " $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
# 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
;;
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=""
vpninterfaces=""
xdslinterfaces=""
bridgeinterfaces=""
remaining=""
rc=0
# get list of bonding, vpn, and xdsl interfaces
for i in $interfaces; do
unset DEVICE TYPE
eval $(LANG=C grep -F "DEVICE=" "ifcfg-$i")
eval $(LANG=C grep -F "TYPE=" "ifcfg-$i")
if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi
if [ "$TYPE" = "Wireless" ]; then
continue
fi
if [ "${DEVICE##cipcb}" != "$DEVICE" ] ; then
vpninterfaces="$vpninterfaces $i"
continue
fi
if [ "$TYPE" = "IPSEC" ]; then
vpninterfaces="$vpninterfaces $i"
continue
fi
if [ "$TYPE" = "Bridge" ]; then
bridgeinterfaces="$bridgeinterfaces $i"
continue
fi
if [ "$TYPE" = "xDSL" -o "$TYPE" = "ADSL" ]; then
xdslinterfaces="$xdslinterfaces $i"
continue
fi
if [ "${DEVICE%%.*}" != "$DEVICE" -o "${DEVICE##vlan}" != "$DEVICE" ] ; then
vlaninterfaces="$vlaninterfaces $i"
continue
fi
remaining="$remaining $i"
done
for i in $vpninterfaces $xdslinterfaces $bridgeinterfaces $vlaninterfaces $remaining; do
(. "./ifcfg-$i"
if [ -z "$DEVICE" ] ; then DEVICE="$i"; fi
if ! check_device_down $DEVICE; then
action "Shutting down interface %s: " $i ./ifdown $i boot
[ $? -ne 0 ] && rc=1
fi
)
done
case "$IPX" in
yes|true)
if [ "$IPXINTERNALNETNUM" != "0" ]; then
/sbin/ipx_internal_net del
fi
;;
esac
action "Shutting down loopback interface: " ./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
if [ -f /proc/sys/net/ipv4/tcp_syncookies ];then
if [ `cat /proc/sys/net/ipv4/tcp_syncookies` != 0 ]; then
sysctl -w net.ipv4.tcp_syncookies=0
fi
fi
# 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)
gprintf "Configured devices:\n"
echo lo $interfaces
gprintf "Currently active devices:\n"
echo $(/sbin/ip -o link show up | awk -F ": " '{ print $2 }')
;;
restart|reload|force-reload)
cd "$CWD"
$0 stop
$0 start
rc=$?
;;
*)
gprintf "Usage: %s\n" "$(basename $0) {start|stop|restart|reload|status}"
exit 2
esac
exit $rc
