netdev - Re: [RFC] Do not activate promiscuous mode on wlan interfaces for bridging.

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Date:	Thu, 12 Jun 2008 21:01:24 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Luis Carlos Cobo <luisca@...ybit.com>
Cc:	linux-wireless@...r.kernel.org, shemminger@...ux-foundation.org,
	j@...fi, bridge@...ux-foundation.org,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [RFC] Do not activate promiscuous mode on wlan interfaces for
	bridging.

On Thu, 2008-06-12 at 20:59 +0200, Johannes Berg wrote:
> On Thu, 2008-06-12 at 11:53 -0700, Luis Carlos Cobo wrote:
> > On Thu, 2008-06-12 at 20:44 +0200, Johannes Berg wrote:
> > > But in response to what mac80211 command are you sending the promisc
> > > mode to the hw?
> > 
> > In the function associated to .configure_filter (struct ieee80211_ops)
> > in the driver, when (*new_flags & (FIF_PROMISC_IN_BSS))
> 
> But it is a "real promisc" mode not restricted to the BSS? Maybe the
> solution is to just not promote promisc-in-bss to real-promisc when AP
> mode is active.

In fact, if it stops the firmware from ACKing packets you want to never
enable it if you have any interfaces at all.

johannes

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