Public bug reported:
Binary package hint: ifplugd
The "/etc/ifplugd/action.d/ifupdown" provided with ifplugd executes an
arbitrary:
/sbin/ifdown $1
For an interface going down. The problem is that ifdown is not meant to
be called directly for wireless interfaces when wpasupplicant is
installed. The correct behavior ought to be:
if down
if wpasupplicant is installed and the current interface is a wireless one then
execute wpa_action $1 down
else
execute ifdown $1
Sample code:
#!/bin/sh
set -e
case "$2" in
up)
/sbin/ifup $1
;;
down)
if [ -x /sbin/wpa_action ]; then
if /bin/grep $1 /proc/net/wireless > /dev/null ; then
/sbin/wpa_action $1 down
else
/sbin/ifdown $1
fi
;;
else
/sbin/ifdown $1
fi
esac
I'm not sure if there is a better way to check if an interface is
wireless than grepping /proc/net/wireless, but this provides the gist of
what I am suggesting.
xubuntu: 7.10
wpasupplicant: 0.6.0+0.5.8-0ubuntu1
ifplugd: 0.28-2.3ubuntu1
ifupdown: 0.6.8ubuntu8
** Affects: ifplugd (Ubuntu)
Importance: Undecided
Status: New
--
ifplugd uses ifdown instead of wpa_action for wireless interfaces
https://bugs.launchpad.net/bugs/204314
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