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#!/sbin/runscript
# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-firewall/ebtables/files/ebtables.initd,v 1.2 2007/09/28 19:22:14 pva Exp $
opts="save reload panic"
ebtables_bin="/sbin/ebtables"
ebtables_save=${EBTABLES_SAVE}
ebtables_tables=$(grep -E '^ebtable_' /proc/modules | cut -f1 -d' ' | sed s/ebtable_//)
if [ "$ebtables_tables" == "" ] ; then
ebtables_tables=${TABLE_NAMES}
fi
depend() {
before net
use logger
}
set_table_policy() {
local chains table=$1 policy=$2
case ${table} in
nat) chains="PREROUTING POSTROUTING OUTPUT";;
broute) chains="BROUTING";;
filter) chains="INPUT FORWARD OUTPUT";;
*) chains="";;
esac
local chain
for chain in ${chains} ; do
${ebtables_bin} -t ${table} -P ${chain} ${policy}
done
}
checkconfig() {
if [ ! -f ${ebtables_save} ] ; then
eerror "Not starting ebtables. First create some rules then run:"
eerror "/etc/init.d/ebtables save"
return 1
fi
return 0
}
start() {
checkconfig || return 1
ebegin "Loading ebtables state and starting bridge firewall"
${ebtables_bin}-restore ${SAVE_RESTORE_OPTIONS} < "${ebtables_save}"
eend $?
}
stop() {
if [ "${SAVE_ON_STOP}" = "yes" ] ; then
save || return 1
fi
ebegin "Stopping bridge firewall"
local a
for a in ${ebtables_tables}; do
set_table_policy $a ACCEPT
${ebtables_bin} -t $a -F
${ebtables_bin} -t $a -X
done
eend $?
}
reload() {
ebegin "Flushing bridge firewall"
local a
for a in ${ebtables_tables}; do
${ebtables_bin} -t $a -F
${ebtables_bin} -t $a -X
done
eend $?
start
}
save() {
ebegin "Saving ebtables state"
touch "${ebtables_save}"
chmod 0600 "${ebtables_save}"
${ebtables_bin}-save ${ebtables_tables} ${SAVE_RESTORE_OPTIONS} > "${ebtables_save}"
eend $?
}
panic() {
service_started ebtables && svc_stop
local a
ebegin "Dropping all packets forwarded on bridges"
for a in ${ebtables_tables}; do
${ebtables_bin} -t $a -F
${ebtables_bin} -t $a -X
set_table_policy $a DROP
done
eend $?
}
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