#------------------------------------------------------------------------------
# /etc/rc.d/rc100.bridge - load bridge device driver and pre-configure it
#
# Creation:     06.12.2002 rresch
# Last Update:  $Id$
#------------------------------------------------------------------------------

if [ "$OPT_BRIDGE_DEV" = "yes" ]
then

begin_script BRIDGE "preparing bridge devices..."

do_modprobe_if_exists kernel/net/atm atm
do_modprobe bridge

if [ "$OPT_EBTABLES" != "yes" ]
then
  echo 0 >/proc/sys/net/bridge/bridge-nf-call-arptables
  echo 0 >/proc/sys/net/bridge/bridge-nf-call-iptables
  echo 0 >/proc/sys/net/bridge/bridge-nf-filter-vlan-tagged
  if [ -f /proc/sys/net/bridge/bridge-nf-call-ip6tables ]
  then
    echo 0 >/proc/sys/net/bridge/bridge-nf-call-ip6tables
  fi
fi

mkdir -p /var/run/bridge

: ${BRIDGE_DEV_BOOTDELAY:=yes}

[ "$BRIDGE_DEV_N" -eq 0 ] || for bridge_idx in `seq 1 $BRIDGE_DEV_N`
do
  eval bridge_devname='$BRIDGE_DEV_'$bridge_idx'_DEVNAME'
  eval bridge_name='$BRIDGE_DEV_'$bridge_idx'_NAME'
  eval bridge_aging='$BRIDGE_DEV_'$bridge_idx'_AGING'
  eval bridge_gci='$BRIDGE_DEV_'$bridge_idx'_GARBAGE_COLLECTION_INTERVAL'
  eval bridge_stp='$BRIDGE_DEV_'$bridge_idx'_STP'
  : ${bridge_stp:=no}

  echo $bridge_devname>/var/run/bridge/$bridge_name
  brctl addbr $bridge_devname

  [ "$bridge_aging" ] && brctl setageing $bridge_devname $bridge_aging
  [ "$bridge_gci" ] && brctl setgcint $bridge_devname $bridge_gci

  if [ $bridge_stp = yes ]
  then
    eval bridge_prio='$BRIDGE_DEV_'$bridge_idx'_PRIORITY'
    eval bridge_fd='$BRIDGE_DEV_'$bridge_idx'_FORWARD_DELAY'
    eval bridge_hello='$BRIDGE_DEV_'$bridge_idx'_HELLO'
    eval bridge_mma='$BRIDGE_DEV_'$bridge_idx'_MAX_MESSAGE_AGE'
    : ${bridge_prio:=128}
    : ${bridge_fd:=15}
    : ${bridge_hello:=2}
    : ${bridge_mma:=20}

    if [ "$BRIDGE_DEV_BOOTDELAY" != "no" ]
    then
      bridge_bd=`expr $bridge_mma \+ \( 2 \* $bridge_fd \)`
      [ $BRIDGE_DEV_BOOTDELAY = yes ] && BRIDGE_DEV_BOOTDELAY=$bridge_bd
      [ $bridge_bd -gt $BRIDGE_DEV_BOOTDELAY ] && BRIDGE_DEV_BOOTDELAY=$bridge_bd
    fi

    brctl stp $bridge_devname on
    brctl setbridgeprio $bridge_devname $bridge_prio
    brctl setfd $bridge_devname $bridge_fd
    brctl sethello $bridge_devname $bridge_hello
    brctl setmaxage $bridge_devname $bridge_mma
  else
    brctl stp $bridge_devname off
  fi

done

end_script

fi