Re: [Bluez-devel] HCI forwarding

[Marcel Holtmann <marcel@holtmann.org>]

Hi,

> I=FFm developing an application to connect two Bluetooth-enabled phones
> via internet using two Bluetooth-enabled PCs both connected to
> internet. I mean that I can transmit files and play Bluetooth
> multiplayer games to my friend that is 25 miles away like if it were
> in my device=FFs Bluetooth radio range. (I know that ping times would b=
e
> very ugly!).
>=20
> I use a raw socket as hcidump does, then I send the data trough TCP to
> the other peer, when received is sent over Bluetooth hoping that the
> other device receives it, this is more complex than it seems since
> bluez handles and answers all HCI requests, i.e (when a device
> performs a SDP request to find a service UUID bluez handles and
> answers the request) but this is not correct for my application, hci
> responses and data acks may be received via TCP from the other peer,
> in other words: no bluez support, only HCI frames sniffing, sending,
> receiving and transmitting. Now my questions are:
>=20
> =20
>=20
> -         Can I send HCI frames with a raw socket ?

yes, you can.

> -         How can I tell the bluez stack not to answer HCI requests
> (receiving only, leave the sends to me).

Set the device into raw mode. This should stop any processing.

> -     Is there a better way to make this application?

Use the hci_vhci driver.

Regards

Marcel




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