iankelling.org Git - automated-distro-installer/blob - fai/config/scripts/DEBIAN/30-interface

   1 #! /bin/bash
   2
   3 error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
   4
   5
   6 newnicnames() {
   7
   8     # determine predictable network names only for stretch and above
   9
  10     [ $do_init_tasks -eq 0 ] && return
  11
  12     ver=$($ROOTCMD dpkg-query --showformat='${Version}' --show udev)
  13     if dpkg --compare-versions $ver lt 220-7; then
  14         return
  15     fi
  16
  17     [ -z $NIC1 ] && return
  18
  19     fields="ID_NET_NAME_FROM_DATABASE ID_NET_NAME_ONBOARD ID_NET_NAME_SLOT ID_NET_NAME_PATH"
  20     for field in $fields; do
  21         name=$(udevadm info /sys/class/net/$NIC1 | sed -rn "s/^E: $field=(.+)/\1/p")
  22         if [[ $name ]]; then
  23             NIC1=$name
  24             break
  25         fi
  26     done
  27     if [[ ! $name ]]; then
  28         echo "$0: error: could not find systemd predictable network name. Using $NIC1."
  29     fi
  30 }
  31
  32 newnicnames
  33 CIDR=$(ip -o -f inet addr show $NIC1 | awk '{print $4}')
  34 if ifclass DHCPC && [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]; then
  35
  36     cat > $target/etc/network/interfaces <<-EOF
  37         # generated by FAI
  38         auto lo $NIC1
  39         iface lo inet loopback
  40         iface $NIC1 inet dhcp
  41 EOF
  42 elif [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]; then
  43       [ -n "$CIDR" ] && cat > $target/etc/network/interfaces <<-EOF
  44         # generated by FAI
  45         auto lo $NIC1
  46         iface lo inet loopback
  47         iface $NIC1 inet static
  48           address $CIDR
  49           gateway $GATEWAYS
  50 EOF
  51     [ -n "$NETWORK" ] && echo "localnet $NETWORK" > $target/etc/networks
  52     if [ ! -L $target/etc/resolv.conf -a -e /etc/resolv.conf ]; then
  53         cp -p /etc/resolv.conf $target/etc
  54     fi
  55 fi
  56
  57 # here fcopy is mostly used, when installing a client for running in a
  58 # different subnet than during the installation
  59 fcopy -iM /etc/resolv.conf
  60 fcopy -iM /etc/network/interfaces /etc/networks
  61
  62 exit $error