HostAP Digest, Vol 67, Issue 7
Thu Nov 6 21:37:50 PST 2008
While connecting to AP, it is definitely possible to connect to Hidden AP
using ap_scan=2. In this case wpa does active scanning and gets associated.
If we use ap_scan=1, then it does passive scanning and gets associated.
What I wrote is only performing scanning operation, where in if you want to
scan for perticular AP(ssid) and get the scanned result ssid is not possible
with wpa_supplicant. For that you should use hidden AP ioctl command
provided by your chip vendor.
Ask your driver team, they will tell you ioctl to be used for hidden AP scan
----- Original Message -----
From: "Kiran Kulkarni" <kiran.1267 at gmail.com>
To: "Raghavendra" <s.raghu at samsung.com>
Cc: <hostap at lists.shmoo.com>
Sent: Friday, November 07, 2008 10:33 AM
Subject: Re: HostAP Digest, Vol 67, Issue 7
> Raghavendra wrote:
>> > Message: 3
>> > Date: Thu, 06 Nov 2008 20:41:19 +0530
>> > From: Kiran Kulkarni <kiran.1267 at gmail.com
>> <mailto:kiran.1267 at gmail.com>>
>> > Subject: Passive Scannning
>> > To: hostap at lists.shmoo.com <mailto:hostap at lists.shmoo.com>, hostap
>> <hostap at shmoo.com <mailto:hostap at shmoo.com>>
>> > Message-ID: <49130917.2090409 at gmail.com
>> <mailto:49130917.2090409 at gmail.com>>
>> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>> > In wpa_supplicant I am searching for a functionality where I will
>> put my
>> > system in passive scan which will only listen to beacons. And if
>> > networks are available I should get some notification on D-Bus or
>> > interface.
>> > So such fascility is provided or not
>> By default passive scanning is supported in wpa_supplicant. Where in it
>> listens on all the channels for beacon frames.
>> Active scanning is not supported (Not sure), where in it will send probe
>> request to AP ssid.
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>> > End of HostAP Digest, Vol 67, Issue 7
>> > *************************************
> Raghu I think wpa_supplicant uses AP_SCAN 1 for active scanning and fetch
> the result from the driver.... see the /wpa_driver_wext_scan/ function u
> will get the answer that we dont use Passive scanning we use active
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