shorewall_code/Shorewall/configfiles/isusable

#
# Shorewall version 5 - isusable File
#
# /etc/shorewall/isusable
#
#	This script is called when Shorewall is attempting to determine
#	if an interface named in /etc/shorewall/providers is usable.
#
#	The script is invoked inside a function that accepts an interface
#	name as a single argument. The file below is designed to work with
#	both swping and lsm as described at
#	http://www.shorewall.net/MultiISP.html
#
# See http://shorewall.net/shorewall_extension_scripts.htm for additional
# information.
#
###############################################################################
local status
status=0

[ -f ${VARDIR}/${1}.status ] && status=$(cat ${VARDIR}/${1}.status)

return $status