#!/bin/sh
#
# openvpn.sh - load tun/tap driver and start OpenVPN daemon
#
# (C) Copyright 2005 by Matthias Andree
# based on suggestions by Matthias Grimm and Dirk Gouders
#
# Made in Northrhine-Westphalia, Germany
#
# $FreeBSD$
# 
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program 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 General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301, USA.

# PROVIDE: openvpn
# REQUIRE: DAEMON
# BEFORE:
# KEYWORD: FreeBSD shutdown

# -----------------------------------------------------------------------------
#
# Add the following lines to /etc/rc.conf to enable openvpn at boot-up time:
#
# openvpn_enable="YES"	# YES or NO
# openvpn_if="tun" 	# driver(s) to load, set to "tun", "tap" or "tun tap"
#
# # optional:
# openvpn_flags=""	# openvpn command line flags
# openvpn_configfile="%%PREFIX%%/etc/openvpn/openvpn.conf" 	# --config file
# openvpn_dir="%%PREFIX%%/etc/openvpn"				# --cd directory
#
# You also need to set openvpn_configfile and openvpn_dir, if the configuration
# file and directory where keys and certificates reside differ from the above
# settings.
#
# Note that we deliberately refrain from unloading drivers.
#
# For further documentation, please see openvpn(8).
#

. %%RC_SUBR%%

name=openvpn
rcvar=`set_rcvar`

prefix="%%PREFIX%%"

openvpn_precmd()
{
	for i in $openvpn_if ; do
		# FreeBSD <= 5.4 does not know kldstat's -m option
		# FreeBSD >= 6.0 does not add debug.* sysctl information
		# in the default build - we check both to keep things simple
		if ! sysctl debug.if_${i}_debug >/dev/null 2>&1 \
			&& ! kldstat -m if_${i} >/dev/null 2>&1 ; then
			if ! kldload if_${i} ; then
				warn "Could not load $i module."
				return 1
			fi
		fi
	done
	return 0
}

stop_postcmd()
{
	rm -f "$pidfile" || warn "Could not remove $pidfile."
}

# support SIGHUP to reparse configuration file
extra_commands="reload"

# pidfile
pidfile="/var/run/${name}.pid"

# command and arguments
command="%%PREFIX%%/sbin/${name}"

# run this first
start_precmd="openvpn_precmd"
# and this last
stop_postcmd="stop_postcmd"

load_rc_config ${name}
: ${openvpn_enable="NO"}
: ${openvpn_flags=""}
: ${openvpn_if=""}
: ${openvpn_configfile="${prefix}/etc/openvpn/openvpn.conf"}
: ${openvpn_dir="${prefix}/etc/openvpn"}
required_files="${openvpn_configfile}"
command_args="--cd ${openvpn_dir} --daemon --config ${openvpn_configfile} --writepid ${pidfile}"
run_rc_command "$1"