Debian und Ubuntu Startskripte für user svxlink

#!/bin/bash


### BEGIN INIT INFO
# Provides:		svxlink
# Required-Start:	$network $local_fs $remote_fs $syslog $ntp
# Required-Stop:	$remote_fs $syslog
# Default-Start:	2 3 4 5
# Default-Stop:		0 1 6
# Short-Description:	Start SvxLink Server daemon
### END INIT INFO


# Author: Christian Zirlewagen (DJ9PH)


PROG="svxlink"
DESC="svxlink Server"
PRG_PATH="/usr/bin"
LOGFILE="/var/log/$PROG"
USER=svxlink
DAEMON=/usr/bin/$PROG
DAEMON_ARGS="--logfile $LOGFILE"
PIDFILE=/var/lock/subsys/$PROG


# 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


do_start()
{
	# Code zum öffnen der GPIO Ports
	# Zunächst der TX Port
	if [[ -d /sys/class/gpio/gpio17 ]] ; then
		echo "*********************** Port TX (gpio17) bereits geöffnet"
	else
		echo "*********************** Port TX (gpio17) wird geöffnet"
		echo "17" > /sys/class/gpio/export
		chmod 666 /sys/class/gpio/gpio17/direction
		chmod 666 /sys/class/gpio/gpio17/value
		echo "out" > /sys/class/gpio/gpio17/direction
	fi
	# Dann der RX Port
	if [[ -d /sys/class/gpio/gpio18 ]] ; then
		echo "************************ Port RX (gpio18) bereits geöffnet"
	else
		echo "************************ Port RX (gpio18) wird geöffnet"
		echo "18" > /sys/class/gpio/export
		chmod 666 /sys/class/gpio/gpio18/direction
		chmod 666 /sys/class/gpio/gpio18/value
		echo "in" > /sys/class/gpio/gpio18/direction
	fi
	# Code zum Öffnen der GPIO Ports beendet


	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
	echo "************************ Test, ob Daemon bereits läuft"
	start-stop-daemon --start --quiet --chuid $USER --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
		|| return 1
	echo "************************ Daemon wird gestartet"
	start-stop-daemon --start --quiet --chuid $USER --pidfile $PIDFILE --exec $DAEMON -- \
		$DAEMON_ARGS \
		|| return 2
	# Add code here, if necessary, that waits for the process to be ready
	# to handle requests from services started subsequently which depend
	# on this one.  As a last resort, sleep for some time.
}


#
# 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
	# TX muss ausgeschlatet werden, da der gpio Port beim Beenden von SvxLink stehen bleibt...
	echo "************************ Daemon wird gestoppt"
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $PROG
	RETVAL="$?"
	[ "$RETVAL" = 2 ] && return 2
	# Wait for children to finish too if this is a daemon that forks
	# and if the daemon is only ever run from this initscript.
	# If the above conditions are not satisfied then add some other code
	# that waits for the process to drop all resources that could be
	# needed by services started subsequently.  A last resort is to
	# sleep for some time.
	start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
	[ "$?" = 2 ] && return 2
	# Many daemons don't delete their pidfiles when they exit.
	rm -f $PIDFILE
	return "$RETVAL"
}


case "$1" in
  start)
	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	echo "************************ Startskript beendet"
	;;
  stop)
	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	echo "************************ TX ausschalten --> gpio17 wird auf low gesetzt"
	echo "low" > /sys/class/gpio/gpio17/direction
	echo "************************ Stopskript beendet"
	;;
  status)
	echo "*********************** Statusskript gestartet"
	status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
	;;
  restart)
	#
	# If the "reload" option is implemented then remove the
	# 'force-reload' alias
	#
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	echo "************************ TX ausschalten --> gpio17 wird auf low gesetzt"
	echo "low" > /sys/class/gpio/gpio17/direction
	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 "************************ Restartskript beendet"
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|status|restart}" >&2
	exit 3
	;;


esac