ebtables.sysv

   1 #!/bin/bash
   2 #
   3 # init script for the Ethernet Bridge filter tables
   4 #
   5 # Written by Dag Wieers <dag@wieers.com>
   6 # Modified by Rok Papez <rok.papez@arnes.si>
   7 #             Bart De Schuymer <bdschuym@pandora.be>
   8 #
   9 # chkconfig: - 15 85
  10 # description: Ethernet Bridge filtering tables
  11 #
  12 # config: __SYSCONFIG__/ebtables         (text)
  13 #         __SYSCONFIG__/ebtables.<table> (binary)
  14
  15 source /etc/init.d/functions
  16 source /etc/sysconfig/network
  17
  18 # Check that networking is up.
  19 [ ${NETWORKING} = "no" ] && exit 0
  20
  21 [ -x __EXEC_PATH__/ebtables ] || exit 1
  22 [ -x __EXEC_PATH__/ebtables-save ] || exit 1
  23 [ -x __EXEC_PATH__/ebtables-restore ] || exit 1
  24
  25 RETVAL=0
  26 prog="ebtables"
  27 desc="Ethernet bridge filtering"
  28 umask 0077
  29
  30 #default configuration
  31 EBTABLES_TEXT_FORMAT="yes"
  32 EBTABLES_BINARY_FORMAT="yes"
  33 EBTABLES_MODULES_UNLOAD="yes"
  34 EBTABLES_SAVE_ON_STOP="no"
  35 EBTABLES_SAVE_ON_RESTART="no"
  36 EBTABLES_SAVE_COUNTER="no"
  37
  38 config=__SYSCONFIG__/$prog-config
  39 [ -f "$config" ] && . "$config"
  40
  41 start() {
  42         echo -n $"Starting $desc ($prog): "
  43         if [ "$EBTABLES_BINARY_FORMAT" = "yes" ]; then
  44                 for table in $(ls __SYSCONFIG__/ebtables.* 2>/dev/null | sed -e 's/.*ebtables\.//' -e '/save/d' ); do
  45                         __EXEC_PATH__/ebtables -t $table --atomic-file __SYSCONFIG__/ebtables.$table --atomic-commit || RETVAL=1
  46                 done
  47         else
  48                 __EXEC_PATH__/ebtables-restore < /etc/sysconfig/ebtables || RETVAL=1
  49         fi
  50
  51         if [ $RETVAL -eq 0 ]; then
  52                 success "$prog startup"
  53                 rm -f /var/lock/subsys/$prog
  54         else
  55                 failure "$prog startup"
  56         fi
  57         echo
  58 }
  59
  60 stop() {
  61         echo -n $"Stopping $desc ($prog): "
  62         for table in $(grep '^ebtable_' /proc/modules | sed -e 's/ebtable_\([^ ]*\).*/\1/'); do
  63                 __EXEC_PATH__/ebtables -t $table --init-table || RETVAL=1
  64         done
  65
  66         if [ "$EBTABLES_MODULES_UNLOAD" = "yes" ]; then
  67                 for mod in $(grep -E '^(ebt|ebtable)_' /proc/modules | cut -f1 -d' ') ebtables; do
  68                         rmmod $mod 2> /dev/null
  69                 done
  70         fi
  71
  72         if [ $RETVAL -eq 0 ]; then
  73                 success "$prog shutdown"
  74                 rm -f /var/lock/subsys/$prog
  75         else
  76                 failure "$prog shutdown"
  77         fi
  78         echo
  79 }
  80
  81 restart() {
  82         stop
  83         start
  84 }
  85
  86 save() {
  87         echo -n $"Saving $desc ($prog): "
  88         if [ "$EBTABLES_TEXT_FORMAT" = "yes" ]; then
  89                 if [ -e __SYSCONFIG__/ebtables ]; then
  90                         chmod 0600 __SYSCONFIG__/ebtables
  91                         mv -f __SYSCONFIG__/ebtables __SYSCONFIG__/ebtables.save
  92                 fi
  93                 __EXEC_PATH__/ebtables-save > __SYSCONFIG__/ebtables || RETVAL=1
  94         fi
  95         if [ "$EBTABLES_BINARY_FORMAT" = "yes" ]; then
  96                 rm -f __SYSCONFIG__/ebtables.*.save
  97                 for oldtable in $(ls __SYSCONFIG__/ebtables.* 2>/dev/null | grep -vF 'ebtables.save'); do
  98                         chmod 0600 $oldtable
  99                         mv -f $oldtable $oldtable.save
 100                 done
 101                 for table in $(grep '^ebtable_' /proc/modules | sed -e 's/ebtable_\([^ ]*\).*/\1/'); do
 102                         __EXEC_PATH__/ebtables -t $table --atomic-file __SYSCONFIG__/ebtables.$table --atomic-save || RETVAL=1
 103                         if [ "$EBTABLES_SAVE_COUNTER" = "no" ]; then
 104                                 __EXEC_PATH__/ebtables -t $table --atomic-file __SYSCONFIG__/ebtables.$table -Z || RETVAL=1
 105                         fi
 106                 done
 107         fi
 108
 109         if [ $RETVAL -eq 0 ]; then
 110                 success "$prog saved"
 111         else
 112                 failure "$prog saved"
 113         fi
 114         echo
 115 }
 116
 117 case "$1" in
 118   start)
 119         start
 120         ;;
 121   stop)
 122         [ "$EBTABLES_SAVE_ON_STOP" = "yes" ] && save
 123         stop
 124         ;;
 125   restart|reload)
 126         [ "$EBTABLES_SAVE_ON_RESTART" = "yes" ] && save
 127         restart
 128         ;;
 129   condrestart)
 130         [ -e /var/lock/subsys/$prog ] && restart
 131         RETVAL=$?
 132         ;;
 133   save)
 134         save
 135         ;;
 136   status)
 137         __EXEC_PATH__/ebtables-save
 138         RETVAL=$?
 139         ;;
 140   *)
 141         echo $"Usage $0 {start|stop|restart|condrestart|save|status}"
 142         RETVAL=1
 143 esac
 144
 145 exit $RETVAL