[PATCH] wpa_supplicant: send event to all interfaces

Janusz Dziedzic janusz.dziedzic at gmail.com
Sat Apr 2 09:56:46 PDT 2016


2016-04-02 12:30 GMT+02:00 Jouni Malinen <j at w1.fi>:
> On Thu, Mar 31, 2016 at 08:53:14PM +0200, Janusz Dziedzic wrote:
>> In case we don't have ifidx and wdev_id pass
>> such event to all interfaces and bss.
>> Before we send event only to first interface and
>> in case we are using p2p-dev we send event only
>> to this one iface:
>> p2p-dev-wlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
>> Because of that we fail hwsim test cases eg. ibss_5ghz,
>> while we never get CTRL-EVENT-REGDOM-CHANGE on wlan0.
>> I also remove for_each() from wpa_supplicant_update_channel_list()
>> while this function will be called now for each interface.
>> So, seems this for_each() was a workaround for a real issue.
> Could you please clarify what exactly you mean with hwsim test cases
> failing? I don't see such a failure in my testing.. Is this only
> relevant for the remote test cases that you show in the example below?
It should also failed in case your driver using p2p-dev. In such case you will
get only REGDOM-CHANGE on p2p-dev-wlan0 (only on first interface in iface
iterations), and never get such event on wlan0.
I think you can start mac80211_hwsim with support_p2p_device=1 and run
only ibss_5ghz to reproduce this problem.

For sure my patch fix this issue and each interface get REGODOM -CHANGE.
In my case p2p-dev-wlan0 and wlan0.
But I am not sure if this will not introduce some other issue. So
clarification is required here, how should we handle events when
ifidx==-1 and wdev_id is not set. If we should send such event to all
interfaces, then my patch do exactly that.

>> Now, seems we pass test where we wait for REGDOM event
>> janusz at dell6430:/home/work/hostap/tests/remote$ ./run-tests.py -r hwsim0 -r hwsim1 -r hwsim2 -d hwsim3 -d hwsim4 -h ibss_5ghz
> tests/remote does not exist in hostap.git, so it is a bit difficult to
> understand this type of comments before either the changes have been
> added for that or the commit message is clearer on what exactly is being
> fixed if the same issue cannot be reproduced in the current hostap.git
> snapshot.
> --
> Jouni Malinen                                            PGP id EFC895FA
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Janusz Dziedzic

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