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path: root/debian/network/if-pre-up.d/vlan
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#!/bin/sh

# Most of this stuff is to enable vlans

case "$IFACE" in
  # Ignore any alias (#272891) which uses <interface>:<alabel>
  *:*)
    exit 0
  ;;
  vlan0*)
    vconfig set_name_type VLAN_PLUS_VID
    VLANID=`echo $IFACE|sed "s/vlan0*//"`
  ;;
  vlan*)
    vconfig set_name_type VLAN_PLUS_VID_NO_PAD
    VLANID=`echo $IFACE|sed "s/vlan0*//"`
  ;;
  eth*.0*|bond*.0*|wlan*.0*)
    vconfig set_name_type DEV_PLUS_VID
    VLANID=`echo $IFACE|sed "s/eth[0-9][0-9]*\.0*//g;s/bond[0-9][0-9]*\.0*//;s/wlan[0-9][0-9]*\.0*//"`
    IF_VLAN_RAW_DEVICE=`echo $IFACE|sed "s/\(eth[0-9][0-9]*\)\..*/\1/;s/\(bond[0-9][0-9]*\)\..*/\1/;s/\(wlan[0-9][0-9]*\)\..*/\1/"`
  ;;
  eth*.*|bond*.*|wlan*.*)
    vconfig set_name_type DEV_PLUS_VID_NO_PAD
    VLANID=`echo $IFACE|sed "s/eth[0-9][0-9]*\.0*//g;s/bond[0-9][0-9]*\.0*//g;s/wlan[0-9][0-9]*\.0*//g"`
    IF_VLAN_RAW_DEVICE=`echo $IFACE|sed "s/\(eth[0-9][0-9]*\)\..*/\1/;s/\(bond[0-9][0-9]*\)\..*/\1/;s/\(wlan[0-9][0-9]*\)\..*/\1/"`
  ;;
  *.0*)
    # Silently ignore interfaces which we do not (know how to) support
    [ -z "$IF_VLAN_RAW_DEVICE" ] && exit 0
    vconfig set_name_type DEV_PLUS_VID
    VLANID=`echo $IFACE|sed "s/[^.]*\.0*//g"`
  ;;
  *.*)
    # Silently ignore interfaces which we do not (know how to) support
    [ -z "$IF_VLAN_RAW_DEVICE" ] && exit 0
    vconfig set_name_type DEV_PLUS_VID_NO_PAD
    VLANID=`echo $IFACE|sed "s/[^.]*\.0*//g"`
  ;;

  *)
    exit 0
  ;;
esac

if [ -n "$IF_VLAN_RAW_DEVICE" ]; then
    if [ ! -x /sbin/vconfig ]; then
        exit 0
    fi
    if ! ip link show dev "$IF_VLAN_RAW_DEVICE" > /dev/null; then
        echo "$IF_VLAN_RAW_DEVICE does not exist, unable to create $IFACE"
        exit 1
    fi
    ip link set up dev $IF_VLAN_RAW_DEVICE
    vconfig add $IF_VLAN_RAW_DEVICE $VLANID
fi

# This is not vlan specific, and should actually go somewhere else.
if [ -n "$IF_HW_MAC_ADDRESS" ]; then
    ip link set $IFACE address $IF_HW_MAC_ADDRESS
fi