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Date:      Mon, 08 Feb 1999 08:24:29 +0100
From:      sthaug@nethelp.no
To:        des@flood.ping.uio.no
Cc:        fenner@parc.xerox.com, hackers@FreeBSD.ORG, nsouch@FreeBSD.ORG, wpaul@FreeBSD.ORG, jkh@FreeBSD.ORG, peter.jeremy@auss2.alcatel.com.au
Subject:   Re: Regarding tcpdump and plip
Message-ID:  <7954.918458669@verdi.nethelp.no>
In-Reply-To: Your message of "08 Feb 1999 04:53:19 %2B0100"
References:  <xzpsoch1rgw.fsf@flood.ping.uio.no>

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> Dag-Erling Smorgrav <des@flood.ping.uio.no> writes:
> > The first of the two attached patches (hopefully) fixes the bpf
> > problem. It compiles and links, but I haven't tested it yet (waiting
> > for make world to complete).
> 
> Well, it's 5 am over here and I finally got it licked :) It was a
> little hairier than I thought because a) I can't just barge in and set
> LPIPHDRLEN to 4, because it's used by non-bpf-related stuff, and b)
> the transmit loop in lpoutput() modified the m_len field in each mbuf
> along the chain *before* passing it on to bpf;

Yup. Already noted by several people, I sent patches for this (among
other things) to -current 14. April last year. Search for "Fixes for
tcpdump with LPIP encapsulation".

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

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