[patch] hostapd does not update WPA IE in driver on reconfiguration

Andriy Tkachuk andrit
Sun Apr 18 22:43:01 PDT 2010

On 2010-04-06 20:47, Jouni Malinen wrote:
> On Fri, Mar 19, 2010 at 03:40:34PM +0200, Andriy Tkachuk wrote:
>> While trying to configure AP with external registrar I noticed that
>> hostapd does not update WPA IE in driver on reconfiguration. Indeed, if
>> changing security options in hostapd.conf manually and then send HUP
>> signal to hostapd - it won't  update WPA IE in driver, as result, the
>> change won't affect security settings in beacons (and probe responses as
>> well). I detected the problem on 0.6.10 version, but it looks like
>> latest 0.7 version also suffers from this.
> The Beacon and Probe Response frames do get updated with some drivers
> (e.g., nl80211),

Indeed, for our driver I also make shutdown and startup for interface on

>  but it did not seem to work for the case of WPA/RSN
> parameters being changed or WPA/RSN being disabled when the driver
> wrapper uses set_generic_elem() instead of set_beacon().

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