On Wed, Sep 22, 2010 at 04:16:50PM +0200, [email protected] wrote:
> Hello Kurt,
> 
> > For self-received messages, the originating socket (sk_buff->sk) is 
> > set. I think it's only accessible in kernel. Using this would IMO 
> > avoid adding code in difficult places, and limit such feature to 
> > adding code in easy places.
More exactly, self-received messages originating from a socket have
this member set. It is possible from kernelspace to inject CAN messages
without any socket, but I guess that's beyond scope.
> 
> Hmm, the sk_buff->sk for the message is like motherland for the 
> person?
> So the self-reception messages are the "fellow citizens" and the
> rest are foreigners? 8)
Put like that, self-reception messages have their passport (different
sockets in the system ~ different countries ...), and messages not
originating on the system, but received from outside, well, they're
alien, they come from somewhere undefined and have no passport :-)

Regards,
Kurt
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