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#!/sbin/runscript
# Copyright 2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
VMNAME=${SVCNAME#*.}
PIDFILE=/var/run/vm/${VMNAME}.pid
MONITOR=/var/run/vm/${VMNAME}.monitor
QTAP_FILE=/var/run/vm/${VMNAME}.qtap
# Default to qemu-kvm in the absense of a setting, failing back
# to kvm if no binary is found, finally, back to qemu.
[ -z "$VMSOFTWARE" ] && VMSOFTWARE=$(type -p qemu-kvm)
[ -z "$VMSOFTWARE" ] && VMSOFTWARE=$(type -p kvm)
[ -z "$VMSOFTWARE" ] && VMSOFTWARE=$(type -p qemu)
DROP_USER=${DROP_USER:-nobody}
MEMORY=${MEMORY:-512M}
TIMEOUT=${TIMEOUT:-300}
SMP=${SMP:-1}
export KVM_USER=${KVM_USER:-"root"}
extra_commands="reboot"
depend() {
need net.br0
}
send_command() {
local command="socat -u - UNIX-CONNECT:${MONITOR}"
type -p nc6 > /dev/null && command="nc6 -U ${MONITOR} --send-only"
echo "$@" | ${command} > /dev/null 2>&1
}
sanity_check() {
if [ "${VMNAME}" = "${SVCNAME}" ]; then
eerror "You have to create an init script for each vm:"
eerror " ln -s vm /etc/init.d/vm.vmname"
return 1
elif [ ! -f "${DISKIMAGE}" -a ! -b "${DISKIMAGE}" ]; then
eerror "couldn't find \$DISKIMAGE '$DISKIMAGE'"
return 1;
fi
}
start() {
sanity_check
img=$(readlink -f "${DISKIMAGE}")
[ -z "$img" ] && {
eerror "couldn't find ${DISKIMAGE}"
return 1;
}
mkdir -p "${PIDFILE%/*}" "${MONITOR%/*}"
ebegin "creating qtap ${QTAP:-(auto allocating one)}"
if [ -n "$QTAP" ]; then
qtap-manipulate create_specific "${QTAP}" -u "${DROP_USER}"
else
QTAP=$(qtap-manipulate create -u "${DROP_USER}")
if [ 0 != $? ]; then
eerror "failed to create qtap interface"
return 1
fi
fi
echo "${QTAP}" > ${QTAP_FILE}
eend $?
ebegin "Starting ${VMSOFTWARE##*/} for ${VMNAME} at VNC port${VNC}"
start-stop-daemon --start "${VMSOFTWARE}" \
--pidfile ${PIDFILE} \
-- -daemonize -pidfile ${PIDFILE} -monitor unix:${MONITOR},server,nowait \
-runas ${DROP_USER} -name ${VMNAME} \
-drive file="$img",if=${DRIVE_MODEL:-virtio},cache=${DRIVE_CACHE:-none} \
-net nic,model=${NIC_MODEL:-virtio},macaddr=${MACADDR} -net tap,ifname=${QTAP},script=no \
${DISABLE_KVM:---enable-kvm} \
${MEMORY:+-m ${MEMORY}} ${SMP:+-smp ${SMP}} ${VNC:+-vnc ${VNC}} ${OTHER_ARGS}
ret=$?
if [ "0" != "${ret}" ]; then
qtap-manipulate destroy ${QTAP}
fi
eend ${ret}
}
reboot() {
if [ ${VMNAME} = ${SVCNAME} ]; then
eerror "You have to create an init script for each vm:"
eerror " ln -s vm /etc/init.d/vm.vmname"
return 1
fi
ebegin "Rebooting ${VMNAME}"
send_command system_reset
eend $?
}
stop() {
sanity_check
ebegin "Powering off ${VMNAME}"
send_command system_powerdown
eend $?
ebegin "waiting up to ${TIMEOUT:-60} seconds for it to die"
local pid
[ -s "${PIDFILE}" ] && pid=$(cat "${PIDFILE}")
if [ -z "$pid" ]; then
eerror "Couldn't find stored pid at '$PIDFILE'; user will have to manually kill kvm"
eerror "Will attempt to destroy qtap despite."
eend 1
else
local ret=1
for x in $(seq 0 ${TIMEOUT:-60}); do
if kill -0 "${pid}" > /dev/null 2>&1; then
sleep 1s
continue
fi
ret=0
break
done
eend $ret
fi
ebegin "Stopping ${VMSOFTWARE##*/} for ${VMNAME}"
start-stop-daemon --stop "${VMSOFTWARE}" \
--user "${DROP_USER}" \
--pidfile "${PIDFILE}" \
--quiet
eend $?
local qtap
[ -s "${QTAP_FILE}" ] && qtap=$(cat "${QTAP_FILE}")
if [ -n "$qtap" ]; then
ebegin "destroying qtap ${qtap}"
qtap-manipulate destroy ${qtap}
eend $?
fi
}
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