diff options
Diffstat (limited to 'nonsystemd/iptables-openrc/ebtables.initd')
-rw-r--r-- | nonsystemd/iptables-openrc/ebtables.initd | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/nonsystemd/iptables-openrc/ebtables.initd b/nonsystemd/iptables-openrc/ebtables.initd new file mode 100644 index 000000000..660876011 --- /dev/null +++ b/nonsystemd/iptables-openrc/ebtables.initd @@ -0,0 +1,101 @@ +#!/sbin/openrc-run +# Copyright 1999-2020 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +extra_commands="save panic" +extra_started_commands="reload" + +ebtables_bin="/sbin/ebtables" +ebtables_save=${EBTABLES_SAVE} + +depend() { + before net + use logger +} + +ebtables_tables() { + for table in filter nat broute; do + if ${ebtables_bin} -t ${table} -L > /dev/null 2>&1; then + printf '%s' "${table} " + fi + done +} + +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 $? +} |