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From: Terry Lambert <terry@lambert.org>
Message-Id: <199608231714.KAA16063@phaeton.artisoft.com>
Subject: Re: cvs commit: src/sys/netinet in.h ip_fw.h ip_input.c ip_output.c
To: pst@jnx.com (Paul Traina)
Date: Fri, 23 Aug 1996 10:14:46 -0700 (MST)
Cc: sos@FreeBSD.org, rgrimes@GndRsh.aac.dev.com, archie@whistle.com,
        julian@whistle.com, current@FreeBSD.org
In-Reply-To: <199608231648.JAA15997@base.jnx.com> from "Paul Traina" at Aug 23, 96 09:48:04 am
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> By not agressive enough, I mean I think you have the right idea, but the
> syntax
> for the hook should be something like:
> 
> 	for (hook = iphooks.ipinput.lh_first; hook; hook = hook->next) {
> 		if (!(*hook)(IP_INPUT, &m, &ip))
> 			break;
> 	}
> 
> Basicly, we make a linked list of hooks and call them in order until one of
> them swallows the packet or they're all complete.
> 
> We do this for ip input processing, ip output processing, and perhaps as
> suggested, in the IP raw input (packet received) processing section of the code.
> 
> Then, if you want IP filtering, just add the hook to the generic "registry"

Question: is there any particular reason this should be IP specific?


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.