netdev - bpf filter : support for vlan tag

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Message-ID: <CAOxq_8MqMatY2+GA6+mHjj5V=Xe7Y8BmuX4r6cz5nChU5C1Vzw@mail.gmail.com>
Date:	Mon, 15 Oct 2012 19:10:15 -0700
From:	Ani Sinha <ani@...stanetworks.com>
To:	netdev@...r.kernel.org
Subject: bpf filter : support for vlan tag

Hi :

I was looking at the kernel side implementation of the BPF filter. I
do not see any code that supports filtering of packets based on
provided vlan tag information from the skbuff. This will make it
impossible to provide any filter to tcpdump that will filter packets
based on the tag information if libpcap uses the kernel filter.

Any help will be much appreciated.

Cheers,
ani
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