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Diffstat (limited to 'recipes/ebtables/ebtables-2.0.9-2/ebtables.init')
| -rwxr-xr-x | recipes/ebtables/ebtables-2.0.9-2/ebtables.init | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/recipes/ebtables/ebtables-2.0.9-2/ebtables.init b/recipes/ebtables/ebtables-2.0.9-2/ebtables.init new file mode 100755 index 0000000000..0044e9825e --- /dev/null +++ b/recipes/ebtables/ebtables-2.0.9-2/ebtables.init @@ -0,0 +1,186 @@ +#!/bin/sh +# +# init script for the Ethernet Bridge filter tables +# +# Written by Dag Wieers <dag@wieers.com> +# Modified by Rok Papez <rok.papez@arnes.si> +# Bart De Schuymer <bdschuym@pandora.be> +# Adapted to Debian by Jan Christoph Nordholz <hesso@pool.math.tu-berlin.de> +# Adapted to OpenEmbedded by Roman I Khimov <khimov@altell.ru> +# +# chkconfig: - 15 85 +# description: Ethernet Bridge filtering tables +# +### BEGIN INIT INFO +# Provides: ebtables +# Required-Start: +# Required-Stop: +# Should-Start: $local_fs +# Should-Stop: $local_fs +# Default-Start: S +# Default-Stop: 0 6 +# Short-Description: ebtables ruleset management +# Description: Saves and restores the state of the ebtables rulesets. +### END INIT INFO + +[ -x /sbin/ebtables ] || exit 1 + +EBTABLES_DUMPFILE_STEM=/etc/ebtables/dump + +RETVAL=0 +prog="ebtables" +desc="Ethernet bridge filtering" +umask 0077 + +#default configuration +EBTABLES_MODULES_UNLOAD="yes" +EBTABLES_LOAD_ON_START="no" +EBTABLES_SAVE_ON_STOP="no" +EBTABLES_SAVE_ON_RESTART="no" +EBTABLES_SAVE_COUNTER="no" +EBTABLES_BACKUP_SUFFIX="~" + +config=/etc/default/$prog +[ -f "$config" ] && . "$config" + +function get_supported_tables() { + EBTABLES_SUPPORTED_TABLES= + /sbin/ebtables -t filter -L 2>&1 1>/dev/null | grep -q permission + if [ $? -eq 0 ]; then + echo "Error: insufficient privileges to access the ebtables rulesets." + exit 1 + fi + for table in filter nat broute; do + /sbin/ebtables -t $table -L &> /dev/null + if [ $? -eq 0 ]; then + EBTABLES_SUPPORTED_TABLES="${EBTABLES_SUPPORTED_TABLES} $table" + fi + done +} + +function load() { + RETVAL=0 + get_supported_tables + echo -n "Restoring ebtables rulesets: " + for table in $EBTABLES_SUPPORTED_TABLES; do + echo -n "$table " + if [ -s ${EBTABLES_DUMPFILE_STEM}.$table ]; then + /sbin/ebtables -t $table --atomic-file ${EBTABLES_DUMPFILE_STEM}.$table --atomic-commit + RET=$? + if [ $RET -ne 0 ]; then + echo -n "(failed) " + RETVAL=$RET + fi + else + echo -n "(no saved state) " + fi + done + if [ -z "$EBTABLES_SUPPORTED_TABLES" ]; then + echo -n "no kernel support. " + else + echo -n "done. " + fi + if [ $RETVAL -eq 0 ]; then + echo "ok" + else + echo "fail" + fi +} + +function clear() { + RETVAL=0 + get_supported_tables + echo -n "Clearing ebtables rulesets: " + for table in $EBTABLES_SUPPORTED_TABLES; do + echo -n "$table " + /sbin/ebtables -t $table --init-table + done + + if [ "$EBTABLES_MODULES_UNLOAD" = "yes" ]; then + for mod in $(grep -E '^(ebt|ebtable)_' /proc/modules | cut -d' ' -f1) ebtables; do + rmmod $mod 2> /dev/null + done + fi + if [ -z "$EBTABLES_SUPPORTED_TABLES" ]; then + echo -n "no kernel support. " + else + echo -n "done. " + fi + if [ $RETVAL -eq 0 ]; then + echo "ok" + else + echo "fail" + fi +} + +function save() { + RETVAL=0 + get_supported_tables + echo -n "Saving ebtables rulesets: " + for table in $EBTABLES_SUPPORTED_TABLES; do + echo -n "$table " + [ -n "$EBTABLES_BACKUP_SUFFIX" ] && [ -s ${EBTABLES_DUMPFILE_STEM}.$table ] && \ + mv ${EBTABLES_DUMPFILE_STEM}.$table ${EBTABLES_DUMPFILE_STEM}.$table$EBTABLES_BACKUP_SUFFIX + /sbin/ebtables -t $table --atomic-file ${EBTABLES_DUMPFILE_STEM}.$table --atomic-save + RET=$? + if [ $RET -ne 0 ]; then + echo -n "(failed) " + RETVAL=$RET + else + if [ "$EBTABLES_SAVE_COUNTER" = "no" ]; then + /sbin/ebtables -t $table --atomic-file ${EBTABLES_DUMPFILE_STEM}.$table -Z + fi + fi + done + if [ -z "$EBTABLES_SUPPORTED_TABLES" ]; then + echo -n "no kernel support. " + else + echo -n "done. " + fi + if [ $RETVAL -eq 0 ]; then + echo "ok" + else + echo "fail" + fi +} + +case "$1" in + start) + [ "$EBTABLES_LOAD_ON_START" = "yes" ] && load + ;; + stop) + [ "$EBTABLES_SAVE_ON_STOP" = "yes" ] && save + clear + ;; + restart|reload|force-reload) + [ "$EBTABLES_SAVE_ON_RESTART" = "yes" ] && save + clear + [ "$EBTABLES_LOAD_ON_START" = "yes" ] && load + ;; + load) + load + ;; + save) + save + ;; + status) + get_supported_tables + if [ -z "$EBTABLES_SUPPORTED_TABLES" ]; then + echo "No kernel support for ebtables." + RETVAL=1 + else + echo -n "Ebtables support available, number of installed rules: " + for table in $EBTABLES_SUPPORTED_TABLES; do + COUNT=$(( $(/sbin/ebtables -t $table -L | sed -e "/^Bridge chain/! d" -e "s/^.*entries: //" -e "s/,.*$/ +/") 0 )) + echo -n "$table($COUNT) " + done + echo ok + RETVAL=0 + fi + ;; + *) + echo "Usage: $0 {start|stop|restart|reload|force-reload|load|save|status}" >&2 + RETVAL=1 +esac + +exit $RETVAL |