#!/bin/sh
# Busybox udhcpc dispatcher script.
# Copyright (C) 2009 by Axel Beckert.
# Copyright (C) 2014 by Michael Tokarev.
#
# Based on the busybox example scripts and the old udhcp source
# Modified base on default.scripts.

log() {
  logger -t "udhcpc[$PPID]" -p daemon.$1 "$interface: $2"
}

case $1 in
  bound|renew)

  # Configure new IP address.
  # Do it unconditionally even if the address hasn't changed,
  # to also set subnet, broadcast, mtu, ...
  busybox ifconfig $interface ${mtu:+mtu $mtu} \
      $ip netmask $subnet ${broadcast:+broadcast $broadcast}

  log info "$1: IP=$ip/$subnet router=$router domain=\"$domain\" dns=\"$dns\" lease=$lease"
  ;;

    deconfig)
  busybox ip link set $interface up
  busybox ip -4 addr flush dev $interface
  busybox ip -4 route flush dev $interface
  log notice "deconfigured"
  ;;

    leasefail | nak)
  log err "configuration failed: $1: $message"
  ;;

    *)
  echo "$0: Unknown udhcpc command: $1" >&2
  exit 1
  ;;
esac