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

   1 #! /bin/bash
   2
   3 netplan_yaml() {
   4     # network configuration using ubuntu's netplan.io
   5     local IFNAME="$1"
   6     local METHOD="$2"
   7     echo     "Generating netplan configuration for $IFNAME ($METHOD)" >&2
   8     echo     "# generated by FAI"
   9     echo     "network:"
  10     echo     "  version: 2"
  11     echo     "  renderer: $RENDERER"
  12     case "$RENDERER" in
  13       networkd)
  14         echo     "  ethernets:"
  15         echo     "    $IFNAME:"
  16         case "$METHOD" in
  17           dhcp)
  18             echo "      dhcp4: true"
  19             ;;
  20           static)
  21             echo "      addresses: [$CIDR]"
  22             echo "      gateway4: $GATEWAYS_1"
  23             echo "      nameservers:"
  24             echo "        search: [$DOMAIN]"
  25             echo "        addresses: [${DNSSRVS// /, }]"
  26             ;;
  27         esac
  28     esac
  29 }
  30
  31 iface_stanza() {
  32     # classic network configuration using /etc/network/interfaces
  33     local IFNAME="$1"
  34     local METHOD="$2"
  35     echo "Generating interface configuration for $IFNAME ($METHOD)" >&2
  36     echo "# generated by FAI"
  37     echo "auto $IFNAME"
  38     echo "iface $IFNAME inet $METHOD"
  39     case "$METHOD" in
  40       static)
  41         echo "    address $IPADDR"
  42         echo "    netmask $NETMASK"
  43         echo "    broadcast $BROADCAST"
  44         echo "    gateway $GATEWAYS"
  45         ;;
  46     esac
  47 }
  48
  49 newnicnames() {
  50
  51     # determine predictable network names only for stretch and above
  52     local name
  53
  54     [ $do_init_tasks -eq 0 ] && return
  55     [ -z "$NIC1" ] && return
  56     ver=$($ROOTCMD dpkg-query --showformat='${Version}' --show udev)
  57     if dpkg --compare-versions $ver lt 220-7; then
  58         return
  59     fi
  60
  61
  62     fields="ID_NET_NAME_FROM_DATABASE ID_NET_NAME_ONBOARD ID_NET_NAME_SLOT ID_NET_NAME_PATH"
  63     for field in $fields; do
  64         name=$(udevadm info /sys/class/net/$NIC1 | sed -rn "s/^E: $field=(.+)/\1/p")
  65         if [[ $name ]]; then
  66             NIC1=$name
  67             return
  68         fi
  69     done
  70
  71     # try to get altname net dev
  72     name=$(ip link show $NIC1 | awk '/altname / { print $2 }')
  73     if [[ $name ]]; then
  74         NIC1=$name
  75         return
  76     else
  77         echo "$0: error: could not find systemd predictable network name. Using $NIC1."
  78     fi
  79 }
  80
  81 if [ -z "$NIC1" ]; then
  82     echo "WARNING: \$NIC1 is not defined. Cannot add ethernet to /etc/network/interfaces."
  83 fi
  84 CIDR=$(ip -o -f inet addr show $NIC1 | awk '{print $4}')
  85 newnicnames
  86
  87 case "$FAI_ACTION" in
  88   install|dirinstall)
  89     ifclass DHCPC && METHOD=dhcp || METHOD=static
  90     ifclass XORG && RENDERER=NetworkManager || RENDERER=networkd
  91
  92     if [ -d $target/etc/netplan ]; then
  93         # Ubuntu >= 17.10 with netplan.io
  94         if [ -n "$NIC1" ]; then
  95             netplan_yaml $NIC1 $METHOD > $target/etc/netplan/01-${NIC1}.yaml
  96         fi
  97     elif [ -d $target/etc/network/interfaces.d ]; then
  98         # ifupdown >= 0.7.41 (Debian >= 8, Ubuntu >= 14.04)
  99         iface_stanza lo loopback > $target/etc/network/interfaces.d/lo
 100
 101         if [ -n "$NIC1" -a ! -f $target/etc/NetworkManager/NetworkManager.conf ]; then
 102             iface_stanza $NIC1 $METHOD > $target/etc/network/interfaces.d/$NIC1
 103         fi
 104     else
 105         (
 106             iface_stanza lo loopback
 107             iface_stanza $NIC1 $METHOD
 108         ) > $target/etc/network/interfaces
 109     fi
 110
 111     if ! ifclass DHCPC ; then
 112         [ -n "$NETWORK" ] && echo "localnet $NETWORK" > $target/etc/networks
 113         if [ ! -L $target/etc/resolv.conf -a -e /etc/resolv.conf ]; then
 114             cp -p /etc/resolv.conf $target/etc
 115         fi
 116     fi
 117     ;;
 118 esac
 119
 120 # here fcopy is mostly used, when installing a client for running in a
 121 # different subnet than during the installation
 122 fcopy -iM /etc/resolv.conf
 123 fcopy -iM /etc/network/interfaces /etc/networks
 124
 125 exit $error