netdev - Re: Sending complete IPv6 packets without bypassing netfilter/IPsec

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Message-Id: <200901161256.15744.remi.denis-courmont@nokia.com>
Date:	Fri, 16 Jan 2009 12:56:15 +0200
From:	"Rémi Denis-Courmont" 
	<remi.denis-courmont@...ia.com>
To:	"ext jpo234@...scape.net" <jpo234@...scape.net>
Cc:	herbert@...dor.apana.org.au, netdev@...r.kernel.org
Subject: Re: Sending complete IPv6 packets without bypassing netfilter/IPsec

On Friday 16 January 2009 12:46:30 ext jpo234@...scape.net, you wrote:
> Herbert,
> sorry for bothering you (and everybody else on the list) again. It
> seems that the stack does not replace a "::" source address with a real
> one when using a PF_INET6/SOCK_RAW/IPPROTO_RAW socket the way it does
> with an IP_HDRINCL IPv4 socket for "0.0.0.0". Do I have to fill this
> one myself

Yes. That's the _whole_ point of writing the header yourself.

> or is there another trick to achieve this?

Use transport-layer raw sockets and let the kernel do the network header.

-- 
Rémi Denis-Courmont
Maemo Software, Nokia Devices R&D

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