mirror of https://gitee.com/openkylin/qemu.git
132 lines
3.0 KiB
Bash
132 lines
3.0 KiB
Bash
#! /bin/sh
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### BEGIN INIT INFO
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# Provides: qemu-guest-agent
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# Required-Start: $remote_fs $syslog
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# Required-Stop: $remote_fs $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: QEMU Guest Agent startup script
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# Description: Start the QEMU Guest Agent if we're running
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# in a QEMU virtual machine
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### END INIT INFO
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# Author: Michael Tokarev <mjt@tls.msk.ru>
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PATH=/sbin:/usr/sbin:/bin:/usr/bin
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DESC="QEMU Guest Agent"
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NAME=qemu-ga
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DAEMON=/usr/sbin/$NAME
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PIDFILE=/var/run/$NAME.pid
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# config
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DAEMON_ARGS=""
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# default transport
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TRANSPORT=virtio-serial:/dev/virtio-ports/org.qemu.guest_agent.0
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# Exit if the package is not installed
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[ -x "$DAEMON" ] || exit 0
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# Read configuration variable file if it is present
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[ -r /etc/default/qemu-guest-agent ] && . /etc/default/qemu-guest-agent
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# Load the VERBOSE setting and other rcS variables
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. /lib/init/vars.sh
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# Define LSB log_* functions.
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# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
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# and status_of_proc is working.
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. /lib/lsb/init-functions
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#
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# Function that checks whenever system has necessary environment
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# It also splits $TRANSPORT into $method and $path
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#
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do_check_transport() {
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method=${TRANSPORT%%:*}; path=${TRANSPORT#*:}
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case "$method" in
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virtio-serial | isa-serial)
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if [ ! -e "$path" ]; then
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log_warning_msg "$NAME: transport endpoint not found, not starting"
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return 1
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fi
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;;
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esac
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}
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#
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# Function that starts the daemon/service
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#
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do_start()
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{
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# Return
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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start-stop-daemon -Sq -p $PIDFILE -x $DAEMON --test > /dev/null \
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|| return 1
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start-stop-daemon -Sq -p $PIDFILE -x $DAEMON -- --daemonize \
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$DAEMON_ARGS -m "$method" -p "$path" \
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|| return 2
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}
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#
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# Function that stops the daemon/service
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#
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do_stop()
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{
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# Return
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# 0 if daemon has been stopped
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# 1 if daemon was already stopped
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# 2 if daemon could not be stopped
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# other if a failure occurred
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start-stop-daemon -Kq --retry=TERM/30/KILL/5 -p $PIDFILE --name $NAME
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}
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case "$1" in
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start)
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do_check_transport || exit 0
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[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" $NAME
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do_start
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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stop)
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[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" $NAME
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do_stop
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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status)
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status_of_proc "$DAEMON" $NAME && exit 0 || exit $?
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;;
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restart|force-reload) # we do not support reload
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do_check_transport || exit 0
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log_daemon_msg "Restarting $DESC" $NAME
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do_stop
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case "$?" in
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0|1)
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do_start
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case "$?" in
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0) log_end_msg 0 ;;
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1) log_end_msg 1 ;; # Old process is still running
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*) log_end_msg 1 ;; # Failed to start
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esac
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;;
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*)
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# Failed to stop
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log_end_msg 1
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;;
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esac
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;;
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*)
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echo "Usage: /etc/init.d/qemu-guest-agent {start|stop|status|restart|force-reload}" >&2
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exit 3
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;;
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esac
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:
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