From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@linux-foundation.org>
Subject: Re: [PATCH] bridge: avoid ptype_all packet handling
Date: Wed, 28 Feb 2007 23:26:36 -0800
Message-ID: <45E6802C.2090708@linux-foundation.org>
References: <20070228195611.24cf19ee@deepthought>	<45E650F6.4030404@candelatech.com>	<45E67B04.2060702@linux-foundation.org> <20070228.232224.74746939.davem@davemloft.net>
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Cc: greearb@candelatech.com, bridge@linux-foundation.org,
	netdev@vger.kernel.org
To: David Miller <davem@davemloft.net>
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David Miller wrote:
> From: Stephen Hemminger <shemminger@linux-foundation.org>
> Date: Wed, 28 Feb 2007 23:04:36 -0800
>
>   
>> If an normal application has to use something like raw packet
>> filtering, it seems there is a missing API.
>>     
>
> I'm loosely following this discussion, but Ben mentions DHCP
> and I remember learning the other month that DHCP uses AF_PACKET
> and filtering instead of IP RAW sockets because it needs to get
> the MAC address and RAW sockets don't provide that.
>   
sounds like a socket option would help, the data is already there. Then 
the normal
UDP receive path would work.