Date: Tue, 22 Feb 2000 14:25:55 -0800 (PST) From: Archie Cobbs <archie@whistle.com> To: myevmenkin@att.com (Yevmenkin Maksim N CSCIO) Cc: freebsd-current@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: NETGRAPH patches (proposal) Message-ID: <200002222225.OAA42237@bubba.whistle.com> In-Reply-To: <E598F159668DD311B9C700902799EAF4473396@njb140po01.ems.att.com> from "Yevmenkin, Maksim N, CSCIO" at "Feb 22, 2000 04:55:21 pm"
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Yevmenkin, Maksim N, CSCIO writes: > > > Here is the description. ng_ether node has two hooks ``divert'' and > > > ``orphan''. > > > It is possible to connect to the one of the hooks and > > intercept row Ethernet > > > frames. But there is no clean way to intercept frame, do > > something and > > > return it back to kernel. > > > > > > This patch provides additional hook ``divertin'' (mmm... > > name is not good, > > > i think) for each ng_ether node. > > > > > > Implementation issues > > > > > > This will not work for ``orphan'' frames. Since kernel > > drops it anyway, i > > > decided to leave it as it is. But is is possible to > > intercept ``orphan'' > > > packets, change it, and write back to ``divertin''. > > > > The "divertin" hook is a useful idea.. after 4.0-REL we can check > > something in based on your patches... > > > > ok. i just have a dumb question. what is the big deal with updating > ether_shost > in ethernet header in ngether_rcvdata. since we are passing raw ethernet > frame, > why should we update ether_shost? wouldn't it be nice to make it optional? > just another control message? I agree.. you should have to set the host address manually. -Archie ___________________________________________________________________________ Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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