package/base-files/files/usr/share/udhcpc/default.script

   1 #!/bin/sh
   2 [ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
   3 . /etc/functions.sh
   4 include /lib/network
   5
   6 RESOLV_CONF="/tmp/resolv.conf.auto"
   7
   8 hotplug_event() {
   9         scan_interfaces
  10         for ifc in $interfaces; do
  11                 config_get ifname $ifc ifname
  12                 [ "$ifname" = "$interface" ] || continue
  13
  14                 config_get proto $ifc proto
  15                 [ "$proto" = "dhcp" ] || continue
  16
  17                 env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
  18         done
  19 }
  20
  21 case "$1" in
  22         deconfig)
  23                 ifconfig $interface 0.0.0.0
  24                 hotplug_event ifdown
  25         ;;
  26         renew|bound)
  27                 ifconfig $interface $ip \
  28                 netmask ${subnet:-255.255.255.0} \
  29                 broadcast ${broadcast:-+}
  30
  31                 if [ -n "$router" ] ; then
  32                         echo "deleting routers"
  33                         while route del default gw 0.0.0.0 dev $interface >&- 2>&- ; do :; done
  34
  35                         for i in $router ; do
  36                                 echo "adding router $i"
  37                                 route add default gw $i dev $interface
  38                         done
  39                 fi
  40
  41                 [ -n "$dns" ] && {
  42                         echo -n > $RESOLV_CONF
  43                         ${domain:+echo search $domain} >> $RESOLV_CONF
  44                         for i in $dns ; do
  45                                 echo "adding dns $i"
  46                                 echo "nameserver $i" >> $RESOLV_CONF
  47                         done
  48                 }
  49
  50                 hotplug_event ifup
  51
  52                 # user rules
  53                 [ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
  54         ;;
  55 esac
  56
  57 exit 0