Date: Tue, 5 Dec 2000 12:30:53 -0800 From: Alfred Perlstein <bright@wintelcom.net> To: Chris Gage <cgage@us.ibm.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Writing a kernel module Message-ID: <20001205123052.C8051@fw.wintelcom.net> In-Reply-To: <OF3896758C.070B46CA-ON852569AC.006FC320@raleigh.ibm.com>; from cgage@us.ibm.com on Tue, Dec 05, 2000 at 03:25:27PM -0500 References: <OF3896758C.070B46CA-ON852569AC.006FC320@raleigh.ibm.com>
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* Chris Gage <cgage@us.ibm.com> [001205 12:25] wrote: > I've been looking, so far in vain, for some kind of guidelines about how I > would go about writing a kernel module for FreeBSD. What I need to do is > more or less what a firewall or a router does, ie intercept packets at the > lowest level inside IP and either return them to the stack if I don't want > them, or forward them to some other IP address if I do want them. If > anyone could point me to a place where this jewel of rather fundamental > information resides, I'd be very grateful. Although this page is written from the 'black hat' point of view, it does get pretty technical and can be useful: http://thc.pimmel.com/files/thc/bsdkern.html -- -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] "I have the heart of a child; I keep it in a jar on my desk." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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