Subject: Re: [Bluez-users] auto pairing between client & server
From: Marcel Holtmann <marcel@holtmann.org>
To: bluez-users@lists.sourceforge.net
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Date: Tue, 26 Apr 2005 13:31:06 +0200

Hi,

> I ran a test with the new configuration and found out the bluetooth
> devices which has this config modified accepted any device coming. The
> pairing window is not poped up anymore, but the link_key is not
> updated (still 0 byte).
> 
> As my understanding, this config ignores the pairing and pin code. It
> accepts all devices connecting to my device, no authentication. Is
> that it?

check the Bluetooth specification and understand the differences between
the security modes. Use only security mode 3 if you really know what you
are doing. Otherwise use the service level security features of L2CAP
and RFCOMM.

> What I want is to avoid the pin popup for certain bluetooth devices
> (know specific BD_ADDR). When those allowed devices connect to my
> device, then I will try to provide "silently" the PIN (no popups) and
> the pairing should be done from there. If other device which BD_ADDR
> does not belong to the list of addresses that my device has, it should
> not be rejected.

If you wanna do that with the bluez-utils prior 2.16 you need to write
your own PIN helper program. With 2.16 you can use a pincodes file for
these task.

Regards

Marcel


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