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Subject: Re: [PATCH] mac80211: allow mgmt frame transmission on DFS channels
From: Johannes Berg <johannes@sipsolutions.net>
To: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Cc: John Linville <linville@tuxdriver.com>,
	Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>,
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Date: Wed, 02 Oct 2013 12:11:55 +0200
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On Wed, 2013-10-02 at 12:07 +0200, Lorenzo Bianconi wrote:
> Before start beaconing cfg80211_reg_can_beacon() verifies the channel
> is CAC checked and available calling cfg80211_secondary_chans_ok().
> Although the channel is marked NL80211_DFS_AVAILABLE after a CAC
> period, ieee80211_monitor_start_xmit() does not allow to inject mgmt
> frames on DFS channels causing association failures.

I don't see how this can cause association failures? Please explain.
DFS-capable hostapd doesn't use monitor interfaces with mac80211 any
more.

johannes