#!/bin/sh
# If we are running dhclient, shutdown running instances cleanly and
# bring them back up on resume.
. "${PM_FUNCTIONS}"
PM_DHCLIENT_RUNDIR="${PM_UTILS_RUNDIR}/network"
PM_DHCLIENT_SUSPEND="${PM_DHCLIENT_RUNDIR}/dhclient.suspend"
suspend_dhclient() {
[ ! -d /etc/sysconfig/network-scripts ] && return
[ ! -x /sbin/ifdown ] && return
[ ! -d ${PM_DHCLIENT_RUNDIR} ] && /bin/mkdir -p ${PM_DHCLIENT_RUNDIR}
[ -f ${PM_DHCLIENT_SUSPEND} ] && /bin/rm -f ${PM_DHCLIENT_SUSPEND}
cd /etc/sysconfig/network-scripts
for ifcfg in ifcfg-* ; do
# Clear relevant parameters set by previous interface
# (lo doesn't set them)
NM_CONTROLLED=
BOOTPROTO=
. ./"${ifcfg}"
if [ "${NM_CONTROLLED}" = "no" ] || [ "${NM_CONTROLLED}" = "n" ] || [ "${NM_CONTROLLED}" = "false" ]; then
if [ "${BOOTPROTO}" = "bootp" ] || [ "${BOOTPROTO}" = "dhcp" ] || [ -z "${BOOTPROTO}" ]; then
# device is not NetworkManager controlled and uses dhcp,
# now see if it's actually up at the moment
/sbin/ip link show ${DEVICE} | /bin/grep -qE "state (UP|UNKNOWN)" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "${DEVICE}" >> ${PM_DHCLIENT_SUSPEND}
/sbin/ifdown ${DEVICE}
fi
fi
fi
done
}
resume_dhclient() {
[ ! -f ${PM_DHCLIENT_SUSPEND} ] && return
[ ! -x /sbin/ifup ] && return
cd /etc/sysconfig/network-scripts
while read device ; do
/sbin/ifup ${device}
done < ${PM_DHCLIENT_SUSPEND}
/bin/rm -f ${PM_DHCLIENT_SUSPEND}
}
case "$1" in
hibernate|suspend)
suspend_dhclient
;;
thaw|resume)
resume_dhclient
;;
*) exit $NA
;;
esac