vlan-down

   1 #!/bin/sh
   2
   3 # If IFACE is an automagic vlan interface (without the vlan-raw-device
   4 # parameter) then let's try to discover the magic here..  Another way would be
   5 # to just probe for the right device name in /proc/net/vlan
   6
   7 case "$IFACE" in
   8   # Ignore any alias (#272891)
   9   *:*)
  10     exit 0
  11   ;;
  12   *.[0-9]*)
  13     # Silently ignore interfaces which ifupdown handles on its own
  14     # If IF_BRIDGE_PORTS is set, probably we're called by bridge-utils
  15     [ -z "$IF_VLAN_RAW_DEVICE" -a -z "$IF_BRIDGE_PORTS" ] && exit 0
  16     IF_VLAN_RAW_DEVICE=`echo $IFACE|sed "s/\([A-Za-z0-9]*\)\..*/\1/"`
  17   ;;
  18   # Test for vlan raw device (#196890, #292648)
  19   *)
  20     [ -z "$IF_VLAN_RAW_DEVICE" ] && exit 0
  21   ;;
  22 esac
  23
  24 if [ -e "/sys/class/net/$IFACE" ]; then
  25     ip link delete $IFACE
  26 fi