#!/bin/sh
. /etc/utils.sh

start()
{
  # This applies only to the network box
  is-network-box || exit 0
  # If the MAC address is already in HNVRAM, we are done
  hnvram -qr MAC_ADDR >/dev/null && exit 0
  # The bootloader passes all three MAC addresses from the env partition on the
  # kernel command line
  macaddr=$(kernopt mac_addr)
  # Ensure the kernel command line argument matches the format we are expecting
  # i.e. three MAC addresses separated by commas.
  pattern='([[:alnum:]]{2}:){5}[[:alnum:]]{2}'
  echo $macaddr | grep -qEe "$pattern,$pattern,$pattern" || exit 1
  echo $macaddr | while IFS=, read a b c d; do
    echo "Migrating MAC addresses from barebox env partition to HNVRAM"
    echo "LAN  $a"
    echo "WAN  $b"
    echo "MOCA $c"
    hnvram -w MAC_ADDR=$a -w MAC_ADDR_WAN=$b -w MAC_ADDR_MOCA=$c &&
    echo "Successfully migrated all three MAC addresses"
  done
}

stop()
{
  :
}

case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    stop
    start
    ;;
  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
esac