Hello,

I just got a reply from the wpa_supplicant mailing list on a question I had 
regarding the autoscan functionality.
The issue is that when connman tells wpa_supplicant to disconnect, the autoscan 
of wpa_supplicant does not start.
According to the response below from jouni Malinen, this is intended behavior.
Frankly, I was quite surprised by this behaviour.
This behaviour means that when the application does not trigger a scan or 
connman restarts the autoscan of wpa_supplicant, all networks will be removed 
after the timeout of wpa_supplicant.
Is this also the expected and intended behaviour from connman point of view?

Regards,

Thiemo


-----Original Message-----
From: [email protected] [mailto:[email protected]] On 
Behalf Of Jouni Malinen
Sent: 28 September 2014 18:55
To: [email protected]
Subject: Re: autoscan does not start after manual disconnect

On Tue, Sep 16, 2014 at 02:06:43PM +0000, Thiemo van Engelen wrote:
> Now I have a problem when there is a connection with an access point and I 
> tell connman to disconnect.
> Connman then tells wpa_supplicant to disconnect, which it does, but then the 
> autoscan of wpa_supplicant is not started.

Disconnect command is requesting wpa_supplicant both to disconnect from the 
current AP (if any) and stop trying to connect any network.

> When wpa_supplicant disconnects because the access point goes out of range or 
> is shut off, the autoscan module does seem to work and the syslog shows 
> wpa_supplicant messages about scans.

In that case, there was no explicit request to stop connection attempts.

> My questions are:
> Is this behavior expected that the autoscan is not started when we (manually) 
> disconnect?

Yes

> Should I give a command (and if so, which) to start the autoscan when the 
> manually disconnect?

Requesting a new connection (e.g., reassociate, reattach, reconnect) should 
enable scanning for a network.

-- 
Jouni Malinen                                            PGP id EFC895FA
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