On Fri, Mar 23, 2007 at 07:07:56PM +0100, Géraud Meyer wrote: > Actually what I found surprising is that if you later stop bluetooth, > modify (only) one of the PIN codes (in > /var/lib/bluetooth/<local_bdaddr>/pincodes or previously in > /etc/bluetooth/passkeys/ or probably also in the passkey agent), and > restart bluetooth, then the connection is still successful. I presume > that once 2 devices have the same key stored in > /var/lib/bluetooth/<local_bdaddr>/linkkeys and one has been > authenticated, no PIN code is ever requested again because the content > of this file is reused instead. Removing the relevant information in > linkkeys triggers another PIN request as far as pand is concerned. I > think that THIS information should be written somewhere. I would say > that it is not specific to pand since hcid seems to handle the > authentication, but I do not know much about bluez. > > Finally I find `Note to the tech-savvy' to be inappropriate, too > repulsive a title, since for a PAN connection I see the proposed > solution as almost necessary: using a passkey agent is not required and > also to my knowledge (I do not know how to use one even though I looked > for information) not as easy as modifying the file pincodes. If there > were a system wide dbus passkey agent available for use this would be > different and one could probably avoid toying with /var/lib/bluetooth/. > This last remark shows that PANs is only a small part of th bluetooth > system that is not as important as LANs. Another hint about that is the > place of the pand (bluetooth) service in the boot scripts: it is started > relatively late during the start, so that ssh for instance is started > before pand. Could a bluetooth network interface be considered as an > interface that could possibly be used as a permanent main interface?
this is in fact what happens with bluez 4 where pan is started together with bluetoothd, plus there's now a dbus passkey agent (bluetooth-agent) shipped with the package. also, the note to the tech savvy is gone as there is no need to fiddle with /var/lib/bluetooth nor there should be Do you find the actual package/documentation acceptable? thanks, filippo -- Filippo Giunchedi - http://esaurito.net - 0x6B79D401 A child of five would understand this. Send someone to fetch a child of five. -- Groucho Marx -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
