shorewall_code/Shorewall/lib.run

#!/bin/sh
#
# Shorewall 4.4 -- /usr/share/shorewall/lib.run.
#
#     This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
#
#     (c) 2010 - Tom Eastep (teastep@shorewall.net)
#
#	Complete documentation is available at http://shorewall.net
#
#	This program is free software; you can redistribute it and/or modify
#	it under the terms of Version 2 of the GNU General Public License
#	as published by the Free Software Foundation.
#
#	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.
#
# This library contains the wrapper code for running a generated script.
#

#
# Get the Shorewall version of the passed script
#
get_script_version() { # $1 = script
    local temp
    local version
    local ifs
    local digits

    temp=$( $SHOREWALL_SHELL $1 version | sed 's/-.*//' )

    if [ $? -ne 0 ]; then
	version=0
    else
	ifs=$IFS
	IFS=.
	temp=$(echo $temp)
	IFS=$ifs
	digits=0
	
	for temp in $temp; do
	    version=${version}$(printf '%02d' $temp)
	    digits=$(($digits + 1))
	    [ $digits -eq 3 ] && break
	done
    fi
    
    echo $version
}
  
#
# Do required exports or create the required option string and run the passed script using
# $SHOREWALL_SHELL
#
run_it() {
    local script
    local options
    local version

    export VARDIR
	
    script=$1
    shift

    version=$(get_script_version $script)

    if [ $version -lt 040408 ]; then
	#
	# Old script that doesn't understand 4.4.8 script options
	#
	export RESTOREFILE
	export VERBOSITY
	export NOROUTES=$g_noroutes
	export PURGE=$g_purge
	export TIMESTAMP=$g_timestamp
	export RECOVERING=$g_recovering
 
	if [ "$g_product" != Shorewall ]; then
	    #
	    # Shorewall Lite
	    #
	    export LOGFORMAT
	    export IPTABLES
	fi
    else
	#
	# 4.4.8 or later -- no additional exports required
	#
	options='-'

	[ -n "$g_noroutes" ]   && options=${options}n
	[ -n "$g_timestamp" ]  && options=${options}t
	[ -n "$g_purge" ]      && options=${options}p
	[ -n "$g_recovering" ] && options=${options}r

	options="${options}V $VERBOSITY"

	[ -n "$RESTOREFILE" ] && options="${options} -R $RESTOREFILE"
    fi
	
    $SHOREWALL_SHELL $script $options $@
}
#################################################################################
# End of lib.run
#################################################################################