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K01qemu-guest-agent
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#! /bin/sh ### BEGIN INIT INFO # Provides: qemu-guest-agent # Required-Start: $remote_fs $syslog # Required-Stop: $remote_fs $syslog # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: QEMU Guest Agent startup script # Description: Start the QEMU Guest Agent if we're running # in a QEMU virtual machine ### END INIT INFO # Author: Michael Tokarev <mjt@tls.msk.ru> PATH=/sbin:/usr/sbin:/bin:/usr/bin DESC="QEMU Guest Agent" NAME=qemu-ga DAEMON=/usr/sbin/$NAME PIDFILE=/var/run/$NAME.pid # config DAEMON_ARGS="" # default transport TRANSPORT=virtio-serial:/dev/virtio-ports/org.qemu.guest_agent.0 # Exit if the package is not installed [ -x "$DAEMON" ] || exit 0 # Read configuration variable file if it is present [ -r /etc/default/qemu-guest-agent ] && . /etc/default/qemu-guest-agent # Load the VERBOSE setting and other rcS variables . /lib/init/vars.sh # Define LSB log_* functions. # Depend on lsb-base (>= 3.2-14) to ensure that this file is present # and status_of_proc is working. . /lib/lsb/init-functions # # Function that checks whenever system has necessary environment # It also splits $TRANSPORT into $method and $path # do_check_transport() { method=${TRANSPORT%%:*}; path=${TRANSPORT#*:} case "$method" in virtio-serial | isa-serial) if [ ! -e "$path" ]; then log_warning_msg "$NAME: transport endpoint not found, not starting" return 1 fi ;; esac } # # Function that starts the daemon/service # do_start() { # Return # 0 if daemon has been started # 1 if daemon was already running # 2 if daemon could not be started start-stop-daemon -Sq -p $PIDFILE -x $DAEMON --test > /dev/null \ || return 1 start-stop-daemon -Sq -p $PIDFILE -x $DAEMON -- --daemonize \ $DAEMON_ARGS -m "$method" -p "$path" \ || return 2 } # # Function that stops the daemon/service # do_stop() { # Return # 0 if daemon has been stopped # 1 if daemon was already stopped # 2 if daemon could not be stopped # other if a failure occurred start-stop-daemon -Kq --retry=TERM/30/KILL/5 -p $PIDFILE --name $NAME } case "$1" in start) do_check_transport || exit 0 [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" $NAME do_start case "$?" in 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; esac ;; stop) [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" $NAME do_stop case "$?" in 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; esac ;; status) status_of_proc "$DAEMON" $NAME && exit 0 || exit $? ;; restart|force-reload) # we do not support reload do_check_transport || exit 0 log_daemon_msg "Restarting $DESC" $NAME do_stop case "$?" in 0|1) do_start case "$?" in 0) log_end_msg 0 ;; 1) log_end_msg 1 ;; # Old process is still running *) log_end_msg 1 ;; # Failed to start esac ;; *) # Failed to stop log_end_msg 1 ;; esac ;; *) echo "Usage: /etc/init.d/qemu-guest-agent {start|stop|status|restart|force-reload}" >&2 exit 3 ;; esac :