[Bug 1832964] Re: Suggested fix/enhancement for wireless-tools.if-pre-up script

[Shawn J]

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=930585


** Bug watch added: Debian Bug tracker #930585
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=930585

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https://bugs.launchpad.net/bugs/1832964

Title:
  Suggested fix/enhancement for wireless-tools.if-pre-up script

Status in wireless-tools package in Ubuntu:
  New

Bug description:
  I've been experiencing an issue with my wireless card and ifup
  relating to this script. I have a fix for it and thought the devs here
  might be interested.

  This is the issue: If a setting fails to be applied, the script brings
  the card up and then tries to apply the setting again. This is fine,
  but it leaves the card up. Later on in the ifup process other scripts
  try to access the card and if the card is up it will respond that it's
  busy and ifup fails.

  My solution has been to alter the wireless-tools if-pre-up script so
  that it ends by running ifconfig down in this case. Here is the patch:

  --- ./wireless-tools.if-pre-up	2017-04-22 10:15:05.000000000 -0400
  +++ ./wireless-tools	2019-06-03 22:39:24.314725863 -0400
  @@ -6,7 +6,7 @@
     exit 0
   fi
   
  -# check if this is a 802.11 device we're supposed to be effecting
  +# check if this is a 802.11 device we're supposed to be affecting
   case "${IF_WIRELESS:-enable}" in
   	wireless-tools|iwconfig)
   	# *we* and not some other 802.11 tool should be used
  @@ -140,4 +140,5 @@
   	FAIL=
   	ifconfig "$IFACE" up
   	apply_settings
  +	ifconfig "$IFACE" down
   fi

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