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