src/installer/dracut-module/70-dhcpcd.exe

   1 #/bin/bash
   2 ########################################################################
   3 # Begin
   4 #
   5 # Description : DHCP Client Script (initrd version)
   6 #
   7 # Authors     : Arne Fitzenreiter - arne_f@ipfire.org
   8 #
   9 # Version     : 02.00
  10 #
  11 # Notes       :
  12 #
  13 ########################################################################
  14
  15 LEASE_FILE="/var/ipfire/dhcpc/dhcpcd-${interface}.info"
  16
  17 export_lease() {
  18         set | grep "^new_" | sed "s|^new_||g" | \
  19         sed "s|'||g" | sort > ${LEASE_FILE}
  20 }
  21
  22 make_resolvconf() {
  23         local DNS="$(grep 'domain_name_servers' ${LEASE_FILE} | cut -d'=' -f2)"
  24         local DNS1="$(echo ${DNS} | cut -d' ' -f1)"
  25         local DNS2="$(echo ${DNS} | cut -d' ' -f2)"
  26
  27         (
  28                 echo "nameserver ${DNS1}"
  29                 echo "nameserver ${DNS2}"
  30         ) > /etc/resolv.conf
  31 }
  32
  33 case "${reason}" in
  34         PREINIT)
  35                 # Configure MTU
  36                 if [ -n "${new_interface_mtu}" ] && [ ${new_interface_mtu} -gt 576 ]; then
  37                         echo "Setting MTU to ${new_interface_mtu}"
  38                         ip link set "${interface}" mtu "${new_interface_mtu}"
  39                 fi
  40                 ;;
  41
  42         BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT|STATIC)
  43                 # Export all information about the newly received lease
  44                 # to file
  45                 export_lease
  46
  47                 # Create system configuration files
  48                 make_resolvconf
  49                 ;;
  50
  51         EXPIRE|FAIL|IPV4LL|NAK|NOCARRIER|RELEASE|STOP)
  52                 rm -f "${LEASE_FILE}"
  53                 ;;
  54 esac
  55
  56 exit 0