Dynamic AP selection from WPA_Supplicant

[khali singh]

Hi

We are facing similar issues and want to achieve the same
functionality. I wonder if there is something that can be done at the
wpa_supplicant level rather than all of us writing our own hacks? I
think this kind of functionality will be useful as wpa_supplicant is
increasingly deployed in headless devices.

Jouni, do you have any comments?

Thanks
Khali

On Fri, Jun 10, 2016 at 4:09 PM, Raghavendra M S <booninfosec at gmail.com> wrote:
> Hi,
>
> We have successfully been experimenting with wpa_supplicant on various
> versions of raspberry pies for enterprise Wifi authentication
> (802.1x). We now plan to sell our stand-alone (no other user
> interface) raspberry pie devices to customers that would deploy these
> in their SME offices. We will embed the Raspberry pies with
> pre-installed certificates and domain information about our server.
> The network administrator of the SME is required to forward the EAP
> messages to our server by configuring his/her AP. However, we don't
> want to (and cannot) standardize the access point name chosen by the
> SME administrator (the AP would also serve other general purpose
> network access). Therefore, a method for dynamic AP selection is
> needed. We plan to use EAP-TLS as the authentication method. As there
> is no visual or command line interface accessible from raspberry pie,
> we want it to try and connect with all the APs in its vicinity,
> automatically.
>
> We have thought about different approaches to do this. We found a
> python script that scans the network
> https://sourceforge.net/projects/wpascm/ . However, it still asks the
> user to manually choose the correct AP. We believe that we  can modify
> the script to dynamically select the right AP (and EAP server
> combination).  A similar approach was to use  wpa_cli scan list and
> feed formatted result to  wpa_cli to try connecting to different APs.
>
> Are there any better ways of doing this? Are we missing something?
>
> Thank you.
>
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