File rctinc.sh of Package tinc

#!/bin/sh
#
#     openSUSE system startup script for tinc daemon
#     Copyright (C) 1995--2005  Kurt Garloff, SUSE / Novell Inc.
#     Copyright (C) 2009--2011  Julian Bäume <julian@svg4all.de>.
#
#     This library is free software; you can redistribute it and/or modify it
#     under the terms of the GNU Lesser General Public License as published by
#     the Free Software Foundation; either version 2.1 of the License, or (at
#     your option) any later version.
#
#     This library is distributed in the hope that it will be useful, but
#     WITHOUT ANY WARRANTY; without even the implied warranty of
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#     Lesser General Public License for more details.
#
#     You should have received a copy of the GNU Lesser General Public
#     License along with this library; if not, write to the Free Software
#     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# /etc/init.d/tinc
#   and its symbolic link
# /usr/sbin/rctinc
#
# startup script for tinc daemon
#
# LSB compatible service control script; see http://www.linuxbase.org/spec/
# 
# Note: This template uses functions rc_XXX defined in /etc/rc.status on
# UnitedLinux/SUSE/Novell based Linux distributions. If you want to base your
# script on this template and ensure that it works on non UL based LSB
# compliant Linux distributions, you either have to provide the rc.status
# functions from UL or change the script to work without them.
# See skeleton.compat for a template that works with other distros as well.
#
### BEGIN INIT INFO
# Provides:          tinc
# Required-Start:    $syslog $remote_fs $network $named
# Should-Start:      $time
# Required-Stop:     $syslog $remote_fs
# Should-Stop:       $time
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: Run a defined number of tinc daemons
# Description:       Run a defined number of tinc daemons
#	Define the network names in the tinc sysconfig
#	file and create all files needed by tinc in
#	/etc/tinc/
### END INIT INFO

# Check for missing binaries (stale symlinks should not happen)
# Note: Special treatment of stop for LSB conformance
TINCD_BIN=/usr/sbin/tincd
test -x $TINCD_BIN || { echo "$TINCD_BIN not installed"; 
	if [ "$1" = "stop" ]; then exit 0;
	else exit 5; fi; }

# Check for existence of needed config file and read it
TINC_CONFIG=/etc/sysconfig/tinc
test -r $TINC_CONFIG || { echo "$TINC_CONFIG not existing";
	if [ "$1" = "stop" ]; then exit 0;
	else exit 6; fi; }

# Read config
. $TINC_CONFIG

## check for symlinks that contain a single network
## this provides more control similar to net.* init-scripts in gentoo
## you can create symlinks of this file ending with tinc.$NETWORK to start $NETWORK only
## example: ln -s /etc/init.d/tinc /etc/init.d/tinc.myVPN && /etc/init.d/tinc.myVPN start to start myVPN only
SINGLE_NETWORK=`echo $0 | egrep "tinc\." | sed "s/.*tinc.//"`
[ ! -z "$SINGLE_NETWORK" ] && TINC_NETWORKS=$SINGLE_NETWORK

## check for a command-line variable NETWORKS after the command (i.e. position 2)
## and override $TINC_NETWORKS set earlier
## this variable must be a space-separated list
## example: /etc/init.d/tinc restart NETWORKS="myVPN1 myVPN2"
CLI_NETWORKS=`echo $2 | egrep "^NETWORKS=" | sed "s/^NETWORKS=//"`
[ ! -z "$CLI_NETWORKS" ] && TINC_NETWORKS=$CLI_NETWORKS

# check if at least one network is configured
[ -z "$TINC_NETWORKS" ] && echo "no network configured, see /etc/sysconfig/tinc" && exit 6

# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     be verbose in local rc status and clear it afterwards
#      rc_status -v -r  ditto and clear both the local and overall rc status
#      rc_status -s     display "skipped" and exit with status 3
#      rc_status -u     display "unused" and exit with status 3
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num>
#      rc_reset         clear both the local and overall rc status
#      rc_exit          exit appropriate to overall rc status
#      rc_active        checks whether a service is activated by symlinks
. /etc/rc.status

# Reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0	  - success
# 1       - generic or unspecified error
# 2       - invalid or excess argument(s)
# 3       - unimplemented feature (e.g. "reload")
# 4       - user had insufficient privileges
# 5       - program is not installed
# 6       - program is not configured
# 7       - program is not running
# 8--199  - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.

case "$1" in
    start)
	/sbin/modprobe tun &>/dev/null

echo -n "Starting tinc networks:"
	for n in $TINC_NETWORKS; do
		if [ ! -f /etc/tinc/"$n"/tinc.conf ]; then
			echo "/etc/tinc/$n/tinc.conf not existing, won't start network $n"
			rc_failed 6
		else
			echo -n " $n"
			$TINCD_BIN --net="$n" --logfile=/var/log/tinc.$n.log --pidfile=/var/run/tinc.$n.pid
		fi
	done

# Remember status and be verbose
	rc_status -v
	;;
    stop)
	echo -n "Shutting down tind networks:"
	for n in $TINC_NETWORKS; do
		if [ -f /var/run/tinc."$n".pid ]; then
			echo -n " $n"
			$TINCD_BIN -n $n -k
		fi
	done

# Remember status and be verbose
	rc_status -v
	;;
    try-restart|condrestart)
	## Do a restart only if the service was active before.
	## Note: try-restart is now part of LSB (as of 1.9).
	## RH has a similar command named condrestart.
	if test "$1" = "condrestart"; then
		echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
	fi
	$0 status
	if test $? = 0; then
		$0 restart
	else
		rc_reset	# Not running is not a failure.
	fi
	# Remember status and be quiet
	rc_status
	;;
    restart)
	## Stop the service and regardless of whether it was
	## running or not, start it again.
	$0 stop NETWORKS="$TINC_NETWORKS"
	# wait some time to finish shutdown
	sleep 1
	$0 start NETWORKS="$TINC_NETWORKS"

# Remember status and be quiet
	rc_status
	;;
    force-reload)
	## Signal the daemon to reload its config

echo -n "Reload config for tinc networks:"
	for n in $TINC_NETWORKS; do
		if [ -f /var/run/tinc."$n".pid ]; then
			echo -n " $n"
			$TINCD_BIN -n $n -kHUP
			touch /var/run/tinc."$n".pid
		fi
	done

# Remember status and be verbose
	rc_status -v
	;;
    reload)
	## Like force-reload, but if daemon does not support
	## signaling, do nothing (!)

echo -n "Reload config for tinc networks "
	for n in $TINC_NETWORKS; do
		if [ -f /var/run/tinc."$n".pid ]; then
			echo -n "$n. "
			$TINCD_BIN -n $n -kHUP
			touch /var/run/tinc."$n".pid
		fi
	done

# Remember status and be verbose
	rc_status -v
	;;
    status)
	echo -n "Checking for running tinc networks:"
	# Return value is slightly different for the status command:
	# 0 - service up and running
	# 1 - service dead, but /var/run/  pid  file exists
	# 2 - service dead, but /var/lock/ lock file exists
	# 3 - service not running (unused)
	# 4 - service status unknown :-(
	# 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)
	for n in $TINC_NETWORKS; do
		if [ -f /var/run/tinc."$n".pid ]; then
			echo -n " $n"
		else
			NOT_RUNNING="$NOT_RUNNING $n"
		fi
	done
	[ ! -z "$NOT_RUNNING" ] && echo && echo -n "Not running tinc networks: $NOT_RUNNING" && rc_failed 4
	[ -z "$NOT_RUNNING" ] && rc_failed 0
	
	# NOTE: rc_status knows that we called this init script with
	# "status" option and adapts its messages accordingly.
	rc_status -v
	;;
    probe)
	## Optional: Probe for the necessity of a reload, print out the
	## argument to this init script which is required for a reload.
	## Note: probe is not (yet) part of LSB (as of 1.9)

for n in $TINC_NETWORKS; do
		if [ /etc/tinc/"$n"/tinc.conf -nt /var/run/tinc."$n".pid ]; then
		       echo "$n reload"
	       else
		       echo "$n none"
	       fi
	done
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit