netdev - Re: [PATCHv2 net] openvswitch: Scrub skb between namespaces

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Message-ID: <CALnjE+prPFWDjbnXoy_vp7+X2X2DnPJp0DLOcxnZkCK1AExa8A@mail.gmail.com>
Date:	Fri, 16 Oct 2015 11:47:01 -0700
From:	Pravin Shelar <pshelar@...ira.com>
To:	Joe Stringer <joestringer@...ira.com>
Cc:	netdev <netdev@...r.kernel.org>, Thomas Graf <tgraf@...g.ch>,
	Hannes Sowa <hannes@...hat.com>, Jesse Gross <jesse@...ira.com>
Subject: Re: [PATCHv2 net] openvswitch: Scrub skb between namespaces

On Fri, Oct 16, 2015 at 11:08 AM, Joe Stringer <joestringer@...ira.com> wrote:
> If OVS receives a packet from another namespace, then the packet should
> be scrubbed. However, people have already begun to rely on the behaviour
> that skb->mark is preserved across namespaces, so retain this one field.
>
> This is mainly to address information leakage between namespaces when
> using OVS internal ports, but by placing it in ovs_vport_receive() it is
> more generally applicable, meaning it should not be overlooked if other
> port types are allowed to be moved into namespaces in future.
>
> Signed-off-by: Joe Stringer <joestringer@...ira.com>

Acked-by: Pravin B Shelar <pshelar@...ira.com>
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