106 lines
1.9 KiB
Bash
106 lines
1.9 KiB
Bash
#!/bin/bash
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# compat for removed initscripts dependency
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success() {
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echo "[ OK ]"
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return 0
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}
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failure() {
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echo "[FAILED]"
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return 1
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}
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# internal variables
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EBTABLES_CONFIG=/etc/sysconfig/ebtables-config
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EBTABLES_DATA=/etc/sysconfig/ebtables
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EBTABLES_TABLES="filter nat"
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if ebtables --version | grep -q '(legacy)'; then
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EBTABLES_TABLES+=" broute"
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fi
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VAR_SUBSYS_EBTABLES=/var/lock/subsys/ebtables
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# ebtables-config defaults
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EBTABLES_SAVE_ON_STOP="no"
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EBTABLES_SAVE_ON_RESTART="no"
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EBTABLES_SAVE_COUNTER="no"
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# load config if existing
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[ -f "$EBTABLES_CONFIG" ] && . "$EBTABLES_CONFIG"
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initialize() {
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local ret=0
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for table in $EBTABLES_TABLES; do
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ebtables -t $table --init-table || ret=1
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done
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return $ret
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}
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sanitize_dump() {
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local drop=false
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export EBTABLES_TABLES
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cat $1 | while read line; do
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case $line in
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\**)
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drop=false
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local table="${line#\*}"
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local found=false
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for t in $EBTABLES_TABLES; do
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if [[ $t == $table ]]; then
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found=true
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break
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fi
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done
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$found || drop=true
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;;
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esac
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$drop || echo "$line"
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done
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}
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start() {
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if [ -f $EBTABLES_DATA ]; then
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echo -n $"ebtables: loading ruleset from $EBTABLES_DATA: "
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sanitize_dump $EBTABLES_DATA | ebtables-restore
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else
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echo -n $"ebtables: no stored ruleset, initializing empty tables: "
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initialize
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fi
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local ret=$?
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touch $VAR_SUBSYS_EBTABLES
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return $ret
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}
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save() {
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echo -n $"ebtables: saving active ruleset to $EBTABLES_DATA: "
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export EBTABLES_SAVE_COUNTER
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ebtables-save >$EBTABLES_DATA && success || failure
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}
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case $1 in
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start)
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[ -f "$VAR_SUBSYS_EBTABLES" ] && exit 0
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start && success || failure
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RETVAL=$?
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;;
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stop)
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[ "x$EBTABLES_SAVE_ON_STOP" = "xyes" ] && save
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echo -n $"ebtables: stopping firewall: "
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initialize && success || failure
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RETVAL=$?
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rm -f $VAR_SUBSYS_EBTABLES
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;;
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save)
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save
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;;
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*)
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echo "usage: ${0##*/} {start|stop|save}" >&2
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RETVAL=2
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;;
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esac
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exit $RETVAL
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