netdev - Re: [PATCH iproute2] ip, realms: also allow to pass in raw realms value

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Message-ID: <20151022234142.52790676@xeon-e3>
Date:	Thu, 22 Oct 2015 23:41:42 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Daniel Borkmann <daniel@...earbox.net>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH iproute2] ip, realms: also allow to pass in raw realms
 value

On Thu,  8 Oct 2015 12:22:39 +0200
Daniel Borkmann <daniel@...earbox.net> wrote:

> If get_rt_realms() fails, try to get a possible raw u32 realms
> value for the u32 RTA_FLOW/FRA_FLOW attribute, as it might be
> useful to directly configure the hex value itself. And only if
> that fails, then bail out.
> 
> The source realm is provided in the upper u16 (mask: 0xffff0000)
> and the destination realm through the lower u16 part (mask:
> 0x0000ffff). This can be useful for tc's bpf realm matcher, but
> also a full hex/mask param can be provided already for matching
> through iptables' --realm cmdline option, for example.
> 
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>

This looks fine, expected some comments but none received.
Applied.
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