linux firewall in c

Posted by asha on Stack Overflow See other posts from Stack Overflow or by asha
Published on 2010-03-22T12:45:49Z Indexed on 2010/03/22 12:51 UTC
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Filed under:

linux

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firewall

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iptables

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kernel-programming

i m implementing a firewall for linux,i want to block packets using loadable kernal module(lkm).
please help me how can i do it ?
i just know that it can be done by lkm by using some function in it,like init(),clean_up.
i want to know how to use DROP,ACCEPT in blocking function within lkm.
i want to do it without iptable command.

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