From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Subject: Re: csum offload and af_packet
Date: Wed, 13 Aug 2008 13:26:22 +0200
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References: <20080812005839.GC18547@gondor.apana.org.au> <200808121817.19662.netdev@axxeo.de> <20080812233753.GA29155@gondor.apana.org.au> <20080812.175532.137434164.davem@davemloft.net> <20080813010935.GA29815@gondor.apana.org.au>
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Cc: David Miller <davem@davemloft.net>, netdev@axxeo.de,
	rusty@rustcorp.com.au, anthony@codemonkey.ws,
	netdev@vger.kernel.org
To: Herbert Xu <herbert@gondor.apana.org.au>
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Herbert Xu wrote:
> On Tue, Aug 12, 2008 at 05:55:32PM -0700, David Miller wrote:
>
>   
>> I kind of hope that libpcap/tcpdump has been taught about auxdata
>> by now, has it? :-/
>>     
>
> Unfortunately no.  This also means that if we do do this in AF_PACKET,
> then running a packet dump on a fast outbound interface may become more
> expensive.

Actually the current CVS version understands auxdata and uses it to
reconstruct VLAN headers. CVS seems to be broken though, I can send
you a tarball with the current version if you want.