netdev - Re: [PATCH net-next-2.6] can-raw: add msg_flags to distinguish local traffic

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Date:	Thu, 21 Oct 2010 04:32:33 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	socketcan@...tkopp.net
Cc:	kurt.van.dijck@....be, netdev@...r.kernel.org,
	socketcan-core@...ts.berlios.de
Subject: Re: [PATCH net-next-2.6] can-raw: add msg_flags to distinguish
 local traffic

From: Oliver Hartkopp <socketcan@...tkopp.net>
Date: Tue, 19 Oct 2010 21:32:04 +0200

> CAN has no addressing scheme. It is currently impossible for userspace
> to tell is a received CAN frame comes from another process on the local
> host, or from a remote CAN device.
> 
> This patch add support for userspace applications to distinguish between
> 'own', 'local' and 'remote' CAN traffic. The distinction is made by returning
> flags in msg->msg_flags in the call to recvmsg().
> 
> The added documentation explains the introduced flags.
> 
> Signed-off-by: Kurt Van Dijck <kurt.van.dijck@....be>
> Signed-off-by: Oliver Hartkopp <socketcan@...tkopp.net>

Applied.
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