Messages in this thread | | | Subject | Re: grabbing all IP packets | From | Andi Kleen <> | Date | 11 Jan 2000 04:27:26 +0100 |
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chris@oskar.dev.nanoteq.co.za (Chris Bohme) writes:
> Hi, > > I am trying to find a way to catch all IP packets (OUTGOING, HOST, > OTHERHOST etc.) before the rest of the stack processes them. > > It is important that this is done from a module and involves no patching of the > kernel source. > > Doing a dev_add_pack() with type ETH_P_IP only gets incoming packets and > ETH_P_ALL clones the sk_buff's. It is important that the packet is not > duplicated as this is intended to be used for a firewall type of > application.
See register_firewall() and friends.
And note that you have to be very careful with the include files in your proprietary module -- some have inline functions which are GPLed.
-Andi
-- This is like TV. I don't like TV.
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