** Description changed:

  The regular expressions used in  /etc/network/if-post-down.d/vlan and 
/etc/network/if-pre-up.d/vlan
  do not match the name of my network card enp4s0f0.
  This can be fixed by broadening the regular expression.
+ 
+ This is only a problem when the device is a vlan device!
  
  See below.
  
  if-pre-up:
  
  #!/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*|em*.0*|p[0-9]*.0*|enp[0-9]*.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*//g;s/wlan[0-9][0-9]*\.0*//g;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\1/"`
-   ;;
-   eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*.*)
-     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;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[0-9]\.//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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\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"`
-   ;;
+   # 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*|em*.0*|p[0-9]*.0*|enp[0-9]*.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*//g;s/wlan[0-9][0-9]*\.0*//g;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\1/"`
+   ;;
+   eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*.*)
+     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;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[0-9]\.//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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\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
-   ;;
+   *)
+     exit 0
+   ;;
  esac
  
  if [ -n "$IF_VLAN_RAW_DEVICE" ] && [ ! -d /sys/class/net/$IFACE ]; 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 $IFACE"
-         exit 1
-     fi
-     if [ ! -e "/sys/class/net/$IFACE" ]; then
-         ip link set up dev $IF_VLAN_RAW_DEVICE
-         vconfig add $IF_VLAN_RAW_DEVICE $VLANID
-     fi
+     if [ ! -x /sbin/vconfig ]; then
+         exit 0
+     fi
+     if ! ip link show dev "$IF_VLAN_RAW_DEVICE" > /dev/null; then
+         echo "$IF_VLAN_RAW_DEVICE does not exist, unable to create $IFACE"
+         exit 1
+     fi
+     if [ ! -e "/sys/class/net/$IFACE" ]; then
+         ip link set up dev $IF_VLAN_RAW_DEVICE
+         vconfig add $IF_VLAN_RAW_DEVICE $VLANID
+     fi
  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
+     ip link set $IFACE address $IF_HW_MAC_ADDRESS
  fi
- 
  
  if-post-down:
  
  #!/bin/sh
  
  # If IFACE is an automagic vlan interface (without the vlan-raw-device
  # parameter) then let's try to discover the magic here..  Another way would be
  # to just probe for the right device name in /proc/net/vlan
  
  case "$IFACE" in
-   # Ignore any alias (#272891)
-   *:*)
-     exit 0
-   ;;
-   eth*.0*|bond*.0*|wlan*.0*|em*.0*|p[0-9]*.0*|enp[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
-   ;;
-   eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*\.*)
-     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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
-   ;;
-   # Test for vlan raw device (#196890, #292648)
-   *)
-     [ -z "$IF_VLAN_RAW_DEVICE" ] && exit 0
-   ;;
+   # Ignore any alias (#272891)
+   *:*)
+     exit 0
+   ;;
+   eth*.0*|bond*.0*|wlan*.0*|em*.0*|p[0-9]*.0*|enp[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
+   ;;
+   eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*\.*)
+     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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
+   ;;
+   # Test for vlan raw device (#196890, #292648)
+   *)
+     [ -z "$IF_VLAN_RAW_DEVICE" ] && exit 0
+   ;;
  esac
  if [ ! -x /sbin/vconfig ]; then
-     exit 0
+     exit 0
  fi
  
  vconfig rem $IFACE

** Summary changed:

- ifup and ifdown dont work when ethernet device name does not meet regular 
conventions
+ ifup and ifdown dont work for vlan devices when raw ethernet device name does 
not meet regular conventions

** Description changed:

  The regular expressions used in  /etc/network/if-post-down.d/vlan and 
/etc/network/if-pre-up.d/vlan
  do not match the name of my network card enp4s0f0.
  This can be fixed by broadening the regular expression.
  
  This is only a problem when the device is a vlan device!
  
- See below.
+ See below for the fix that worked on my system.
  
  if-pre-up:
  
  #!/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*|em*.0*|p[0-9]*.0*|enp[0-9]*.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*//g;s/wlan[0-9][0-9]*\.0*//g;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\1/"`
    ;;
    eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*.*)
      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;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[0-9]\.//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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\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 "$IF_VLAN_RAW_DEVICE" ] && [ ! -d /sys/class/net/$IFACE ]; 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 $IFACE"
          exit 1
      fi
      if [ ! -e "/sys/class/net/$IFACE" ]; then
          ip link set up dev $IF_VLAN_RAW_DEVICE
          vconfig add $IF_VLAN_RAW_DEVICE $VLANID
      fi
  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
  
  if-post-down:
  
  #!/bin/sh
  
  # If IFACE is an automagic vlan interface (without the vlan-raw-device
  # parameter) then let's try to discover the magic here..  Another way would be
  # to just probe for the right device name in /proc/net/vlan
  
  case "$IFACE" in
    # Ignore any alias (#272891)
    *:*)
      exit 0
    ;;
    eth*.0*|bond*.0*|wlan*.0*|em*.0*|p[0-9]*.0*|enp[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
    ;;
    eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*\.*)
      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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
    ;;
    # Test for vlan raw device (#196890, #292648)
    *)
      [ -z "$IF_VLAN_RAW_DEVICE" ] && exit 0
    ;;
  esac
  if [ ! -x /sbin/vconfig ]; then
      exit 0
  fi
  
  vconfig rem $IFACE

** Package changed: biosdevname (Ubuntu) => ifupdown (Ubuntu)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ifupdown in Ubuntu.
https://bugs.launchpad.net/bugs/1628591

Title:
  ifup and ifdown dont work for vlan devices when raw ethernet device
  name does not meet regular conventions

Status in ifupdown package in Ubuntu:
  New

Bug description:
  The regular expressions used in  /etc/network/if-post-down.d/vlan and 
/etc/network/if-pre-up.d/vlan
  do not match the name of my network card enp4s0f0.
  This can be fixed by broadening the regular expression.

  This is only a problem when the device is a vlan device!

  See below for the fix that worked on my system.

  if-pre-up:

  #!/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*|em*.0*|p[0-9]*.0*|enp[0-9]*.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*//g;s/wlan[0-9][0-9]*\.0*//g;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\1/"`
    ;;
    eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*.*)
      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;s/em[0-9][0-9]*\.0*//g;s/p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\.0*//g;s/enp[0-9]s[0-9]f[0-9]\.//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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/;s/\(enp[0-9]s[0-9]f[0-9]\)\..*/\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 "$IF_VLAN_RAW_DEVICE" ] && [ ! -d /sys/class/net/$IFACE ]; 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 $IFACE"
          exit 1
      fi
      if [ ! -e "/sys/class/net/$IFACE" ]; then
          ip link set up dev $IF_VLAN_RAW_DEVICE
          vconfig add $IF_VLAN_RAW_DEVICE $VLANID
      fi
  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

  if-post-down:

  #!/bin/sh

  # If IFACE is an automagic vlan interface (without the vlan-raw-device
  # parameter) then let's try to discover the magic here..  Another way would be
  # to just probe for the right device name in /proc/net/vlan

  case "$IFACE" in
    # Ignore any alias (#272891)
    *:*)
      exit 0
    ;;
    eth*.0*|bond*.0*|wlan*.0*|em*.0*|p[0-9]*.0*|enp[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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
    ;;
    eth*.*|bond*.*|wlan*.*|em*.*|p[0-9]*.*|enp[0-9]*\.*)
      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/;s/\(em[0-9][0-9]*\)\..*/\1/;s/\(p[0-9][0-9]*\(p[0-9][0-9]*\)\?\(_[0-9][0-9]*\)\?\)\..*/\1/"`
    ;;
    # Test for vlan raw device (#196890, #292648)
    *)
      [ -z "$IF_VLAN_RAW_DEVICE" ] && exit 0
    ;;
  esac
  if [ ! -x /sbin/vconfig ]; then
      exit 0
  fi

  vconfig rem $IFACE

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