Re: filtering packtes before OS takes care about them
From: bert hubert <hidden>
Date: 2005-02-28 17:38:00
On Mon, Feb 28, 2005 at 05:16:57PM +0100, Weber Matthias wrote:
i need a possibility to catch IP4 packets (from ethernet devices) before OS' netmodules (IP, UDP, TCP, ICMP, ARP, ROUTE, NETFILTER ...) takes care about them and
Why? It helps if you tell us what you really want, or is this a research project? The earliest place I know of is with tc filter, but that is a netfilter hook. So part of netfilter will "see" your code. What you appear to be asking for is a packet filtering network adaptor? These exist.
* to modify packet headers and move packets to interface related output * buffers
Sure you want an operating system? Good luck! -- http://www.PowerDNS.com Open source, database driven DNS Software http://netherlabs.nl Open and Closed source services