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Re: [Qemu-devel] [PATCH V2] net: awlays walk through filters reversely i
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH V2] net: awlays walk through filters reversely if traffic is outgress |
Date: |
Mon, 25 Jan 2016 20:55:09 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 |
On 01/25/2016 08:46 PM, Li Zhijian wrote:
In the subject:
s/awlays/always/
s/reversely/in reverse/
s/outgress/egress/
> Previously, if we attach more than filters for one netdev, IN/OUT traffic pass
> through filters in the a same order.
> ingress: netdev ->filter1 ->filter2 ->...filter[n] ->emulated device
> outgress: emulated device ->filter1 ->filter2 ->...filter[n] ->netdev.
s/outgress/egress/
>
> But some scenes, we hope filters handle the outgress traffic in a reverse
> order.
> For example, in colo-proxy(will be implemented later), we have a redirector
space before ( in English
> filter and a colo-rewriter filter, we need the filter behavior like that:
> ingress(->)/outgress(<-): <->redirector <->colo-rewriter <->emulated device
>
> After this changes, outgress traffic always pass through filters in a reverse
> order.
>
> Signed-off-by: Wen Congyang <address@hidden>
> Signed-off-by: Li Zhijian <address@hidden>
> ---
> include/net/net.h | 4 +++-
> net/filter.c | 21 +++++++++++++++++++--
> net/net.c | 20 +++++++++++++++-----
> 3 files changed, 37 insertions(+), 8 deletions(-)
>
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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