netdev - Re: [PATCH RFC 3/7] netfilter: add NF_INET_LOCAL_SOCKET

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Message-ID: <alpine.LSU.2.20.1509300938060.9960@nerf40.vanv.qr>
Date:	Wed, 30 Sep 2015 09:40:19 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...i.de>
To:	Daniel Mack <daniel@...que.org>
cc:	Florian Westphal <fw@...len.de>, pablo@...filter.org,
	daniel@...earbox.net, netfilter-devel@...r.kernel.org,
	netdev@...r.kernel.org, balazs.scheidler@...abit.com
Subject: Re: [PATCH RFC 3/7] netfilter: add NF_INET_LOCAL_SOCKET_IN chain
 type


On Wednesday 2015-09-30 09:24, Daniel Mack wrote:
>
>> Drop?  Makes no sense, else application would not be running in the first
>> place.
>
>Of course you can drop certain packets at this point, depending on other
>details. Say, for instance, you want to match all packets that are
>received by a certain task [...]
>Another use case is accounting. If you want to know how much traffic a
>certain service or application in your system has caused

But the sk info would be available in INPUT already, would it not?
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