171 lines
3.3 KiB
Bash
171 lines
3.3 KiB
Bash
#!/bin/bash
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#
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# xend Starts and stops the Xen control daemon
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#
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# chkconfig: 35 98 01
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# description: Starts and stops the Xen control daemon
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#
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### BEGIN INIT INFO
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# Provides: xend
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# Required-Start: $syslog
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# Should-Start: $time $network $remote_fs
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# Required-Stop: $syslog
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# Should-Stop: $time $network $remote_fs
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# Default-Start: 3 5
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# Default-Stop: 0 1 2 4 6
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# Short-Description: Starts and stops the Xen control daemon
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# Description: Starts and stops the Xen control daemon. xend is needed
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# to use Xen.
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### END INIT INFO
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await_daemons_up()
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{
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i=1
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rets=10
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xend status
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while [ $? -ne 0 -a $i -lt $rets ]; do
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sleep 1
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echo -n .
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i=$(($i + 1))
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xend status
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done
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}
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. /etc/rc.status
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rc_reset
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xend_abort()
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{
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echo -n "xend "
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rc_failed $1
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rc_status -v
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rc_exit
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}
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cleanup()
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{
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rm -f /var/lib/xen/tmp/* 2>/dev/null
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rm -f /var/lib/xen/xenbl* 2>/dev/null
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}
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parseln()
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{
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name=${1:0:$((${#1}-36))}
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name=${name%% *}
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rest="${1: -36}"
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id=${rest:0:4}
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id=`echo $id`
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mem=${rest:4:6}
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mem=`echo $mem`
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vcpu=${rest:10:6}
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vcpu=`echo $vcpu`
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state=${rest:16:11}
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state=`echo $state`
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tm=${rest:27}
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tm=`echo $tm`
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}
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if [ "$1" == status ]; then
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if [ ! -e /proc/xen/capabilities ]; then
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xend_abort 3
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fi
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else
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if [ `id -u` != 0 ]; then
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xend_abort 4
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fi
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if [ ! -e /proc/xen/capabilities ] ||
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! grep control_d /proc/xen/capabilities >/dev/null 2>&1; then
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if [ "$1" == stop ] ||
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[ "$1" == try-restart ]; then
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xend_abort 0
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else
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xend_abort 6
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fi
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fi
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fi
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XEND=`ps ax | grep xend | grep python | awk '{ print $1 }'`
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XEND=`echo $XEND`
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case "$1" in
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start)
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echo -n "Starting xend "
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if [ ! -z "$XEND" ]; then
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echo -n "(already running pid $XEND) "
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else
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cleanup
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fi
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# Load XEN backend modules
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# Sidenote: They could be loaded later:
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# - netloop at network-bridge init time
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# - netbk and blkbk when the dom0 hotplug events occur
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# (in xen-network-common.sh and block-common.sh)
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# - xenblk when xend prepares for bootloader
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# but for now it's safest to have them loaded when xend starts in dom0.
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modprobe blktap 2>/dev/null || true
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modprobe blkbk 2>/dev/null || true
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modprobe xenblk 2>/dev/null || true
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modprobe netloop 2>/dev/null || true
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modprobe netbk 2>/dev/null || true
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xend start
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await_daemons_up
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;;
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stop)
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echo -n "Stopping xend "
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if [ -z "$XEND" ]; then
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echo -n "(not running) "
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xend stop
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rc_reset
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else
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echo -n "(pid $XEND) "
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unset sysrq_sent
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while read LN; do
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parseln "$LN"
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[ -z "$id" ] && continue
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[ "$id" = 0 ] && continue
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sysrq_sent=1
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echo -en "\n Warning: Domain $name (ID $id) still up ($state)"
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# Domains should be closed down by xendomains; anyway, send
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# SysRq-S to avoid the worst in case domains are not shut down.
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xm sysrq $id s
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done < <(xm list | grep -v '^Name *ID')
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if [ -n "$sysrq_sent" ]; then sleep 1; fi
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xend stop
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cleanup
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rc_reset
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fi
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;;
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status)
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echo -n "Checking status of xend "
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if [ ! -z "$XEND" ]; then
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echo -n "(pid $XEND) "
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fi
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xend status
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;;
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restart|reload)
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echo -n "Restarting xend "
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if [ -z "$XEND" ]; then
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echo -n "(not running) "
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else
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echo -n "(old pid $XEND) "
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fi
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xend restart
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await_daemons_up
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;;
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try-restart)
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$0 status
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if [ $? = 0 ]; then
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$0 restart
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else
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rc_reset
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fi
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;;
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*)
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echo "Usage: $0 {start|stop|restart|try-restart|reload|status}"
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rc_failed 2
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rc_exit
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esac
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rc_status -v
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rc_exit
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