From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: socket filter
Date: Thu, 19 Aug 2010 22:04:31 -0700
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Cc: netfilter-devel@vger.kernel.org
To: krunal patel <krunal.raj@gmail.com>
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On Fri, 20 Aug 2010 09:57:33 +0530
krunal patel <krunal.raj@gmail.com> wrote:

> Hi,
> 
> There are ioctl's for attaching bpf like filters to socket. I found it
> in kernel documentation.
>     setsockopt(sockfd, SOL_SOCKET, SO_ATTACH_FILTER, &Filter, sizeof(Filter));
> I doubt is can we attach filters in case of netlink socket.
> I am logging all packets using ULOG target and using ulogd.
> Is it possible to use same ioctl for netlink socket we create in ulogd?

You can use socket filters on netlink sockets since  2.6.26