netdev - Re: [RFC v2] mac80211: disallow bridging managed/adhoc interfaces

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Message-ID: <646765f40911171442m467efbc8ped7abc9d529ed095@mail.gmail.com>
Date:	Wed, 18 Nov 2009 09:42:38 +1100
From:	Julian Calaby <julian.calaby@...il.com>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	netdev <netdev@...r.kernel.org>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	Stephen Hemminger <shemminger@...tta.com>,
	Felix Fietkau <nbd@...nwrt.org>
Subject: Re: [RFC v2] mac80211: disallow bridging managed/adhoc interfaces

On Wed, Nov 18, 2009 at 07:48, Johannes Berg <johannes@...solutions.net> wrote:
> --- wireless-testing.orig/net/mac80211/iface.c  2009-11-17 14:20:19.000000000 +0100
> +++ wireless-testing/net/mac80211/iface.c       2009-11-17 17:56:08.000000000 +0100
> @@ -745,6 +745,11 @@ int ieee80211_if_change_type(struct ieee
>        if (type == sdata->vif.type)
>                return 0;
>
> +       /* if it's part of a bridge, reject changing type to station/ibss */
> +       if (sdata->dev->br_port && (type == NL80211_IFTYPE_ADHOC ||
> +                                   type == NL80211_IFTYPE_STATION))
> +               return -EBUSY;

Busy doesn't seem like the right error here ... maybe use -EOPNOTSUPP
like the next test?

Thanks,

-- 

Julian Calaby

Email: julian.calaby@...il.com
.Plan: http://sites.google.com/site/juliancalaby/
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