cat /conf/start_8021x.sh

------------------------
#!/usr/bin/env sh

INTERFACE="eth4"

logger -s "WPA (${INTERFACE}): Beginning WPA authorization process."

WPA_DAEMON_CMD="/usr/sbin/wpa_supplicant -D wired -i ${INTERFACE} -c /conf/wpa_supplicant.conf -B"

# Kill any existing wpa_supplicant process.
PID=$(pgrep -f "wpa_supplicant.*${INTERFACE}")
if [ ${PID} > 0 ];
then
  logger -s "WPA (${INTERFACE}): Terminating existing supplicant on PID ${PID}."
  RES=$(kill ${PID})
sleep 1
fi

# Start wpa_supplicant daemon.
RES=$(${WPA_DAEMON_CMD})
PID=$(pgrep -f "wpa_supplicant.*${INTERFACE}")
logger -s "WPA (${INTERFACE}): Supplicant running on PID ${PID}."

# Wait until wpa_cli has authenticated.
WPA_STATUS_CMD="/usr/sbin/wpa_cli status | grep 'suppPortStatus' | cut -d= -f2"
IP_STATUS_CMD="ifconfig ${INTERFACE} | grep 'inet\ ' | cut -d':' -f2 | cut -d' ' -f1"


logger -s "WPA (${INTERFACE}): Waiting for authorization."

while true;
do
  WPA_STATUS=$(eval ${WPA_STATUS_CMD})
  if [ X${WPA_STATUS} = X"Authorized" ];
  then
    logger -s "WPA (${INTERFACE}): Authorization completed."
 sleep 3
    IP_STATUS=$(eval ${IP_STATUS_CMD})

    if [ -z ${IP_STATUS} ] || [ ${IP_STATUS} = "0.0.0.0" ];
    then
      logger -s "WPA (${INTERFACE}): No IP address assigned, force restarting DHCP."
      RES=$(eval /var/sec/chroot-dhcpc/usr/sbin/dhclient -nw -cf /var/sec/chroot-dhcpc/etc/eth4.conf -lf /var/sec/chroot-dhcpc/var/db/eth4.leases  -pf /var/run/dhclient_eth4.pid  ${INTERFACE})
      IP_STATUS=$(eval ${IP_STATUS_CMD})
    fi
    logger -s "WPA (${INTERFACE}): IP address is ${IP_STATUS}."
    break
  else
    sleep 1
  fi
done

logger -s "WPA (${INTERFACE}): Process complete, exiting."