Hi Peter and Steffen,
thanks for your response...
>> What is the right layer/function to realize this?
>Sounds similar to pcmcia cardmanager...
>Perhaps you'd have a low-level "big brother" module watching the port
>and triggering [un]loading of other modules.
>How do you realize that the plug has been connected?
I use the kernel timer for polling the parallelport once per second.
I can't use interrupts because the plug is not connected to ACK :-(
>
>> from the hardware. Should I block the transmit and receive functions
>> in the networking layer? Or is there a simple way to do this.
>remove the outgoing route(s) only ?
I can't solve this with userspace utils because it should be a firewall
feature. The attacker should't have an option to reactivate the network
connection while the plug is connected. As I sad "like a disconnected
network cable"
regards
Frank
--
_/_/_/_/ _// _/ Frank Neuber
_/ _/_/ _/ frank.neuber@gmx.de (private)
_/_/_/ _/ _/ _/
_/ _/ _/_/ neuber@opensource-systemberatung.de
_/ _/ // http://www.opensource-systemberatung.de
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