netdev - Re: problem with flowi structure

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Date:	Thu, 16 Sep 2010 17:26:08 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Nicola Padovano <nicola.padovano@...il.com>
Cc:	netfilter-devel <netfilter-devel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: problem with flowi structure

Le jeudi 16 septembre 2010 à 17:14 +0200, Nicola Padovano a écrit :
> Hi all. I'm "studying" the flowi structure.
> I see some source code:
> 
> [CODE]
> ...
> fl.nl_u.ip4_u.saddr = 0
> ...
> ip_route_output_key(....,&fl,....)
> ...
> (where fl is a flowi struct)
> [/CODE]
> 
> what is the meaning of saddr = 0?
> 
> 

This means ip_route_output_key() is allowed to chose whatever source ip
address to reach remote peer.



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