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Date:      Tue, 25 Jan 2005 11:21:36 +0300
From:      Gleb Smirnoff <glebius@freebsd.org>
To:        Andre Oppermann <andre@freebsd.org>
Cc:        net@freebsd.org
Subject:   Re: [TEST/REVIEW #2] ng_ipfw: node to glue together ipfw(4) and netgraph(4)
Message-ID:  <20050125082136.GC57248@cell.sick.ru>
In-Reply-To: <41F5FED1.B6EFD246@freebsd.org>
References:  <20050124100717.GA47663@cell.sick.ru> <41F5FED1.B6EFD246@freebsd.org>

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On Tue, Jan 25, 2005 at 09:09:53AM +0100, Andre Oppermann wrote:
A> Style-wise there is only the space after "(void )..." in ip_fw_pfil.c
A> for the ng_tee case which is too much.

Ok.

A> I don't like the arbitrary back-passing of errors from ng_ipfw.  I'm
A> fine with EACCES, ENOMEM and ESRCH (if hook not connected) but nothing
A> else.  Getting back any other error is very confusing and non-intuitive
A> when looking at the error of an application having packets sunk there.

So you want "return (0)" at end of ng_ipfw_input()? My vote is against.
Julian, Brooks?

A> Why don't you prepend the m_tag within ip_fw2.c as altq and divert are
A> doing it?  Dummynet should do the same to get it consistent again.

Not sure that this is good. These tags are foreign to ipfw, they belong
to other facilities.

A> Just to confirm it, NG_SEND_DATA_ONLY() queues the packet unconditionally
A> to unwind the stack?

No. The stack will be unwinded when packet travels thru netgraph and returned
back to ng_ipfw node. A new ISR will start with ng_ipfw_rcvdata(). This mode
is configured in ng_ipfw_connect().

-- 
Totus tuus, Glebius.
GLEBIUS-RIPN GLEB-RIPE



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