From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Subject: Re: [PATCH] pkttype match mismatches on locally generated packets
Date: Thu, 20 Jul 2006 18:20:35 +0200
Message-ID: <44BFAD53.4010704@trash.net>
References: <20060718010642.GA1203@linuxace.com>
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To: Phil Oester <kernel@linuxace.com>
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Phil Oester wrote:
> Locally generated broadcast and multicast packets have pkttype set to
> PACKET_LOOPBACK instead of PACKET_BROADCAST or PACKET_MULTICAST.  This
> causes the pkttype match to fail to match packets of either type.
> 
> The below patch remedies this by using the daddr as a hint as to
> broadcast|multicast.  While not pretty, this seems like the only way
> to solve the problem short of just noting this as a limitation of the match.
> 
> This resolves bug #484

Thanks Phil. I thought about just adding PACKET_LOOPBACK support to
userspace, but this way seems better, so applied.