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| author | Michal Kazior <michal.kazior@tieto.com> | 2014-01-29 14:22:27 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-04 21:58:17 +0100 |
| commit | 9e0e29615a2077be852b1245b57c5b00fa609522 (patch) | |
| tree | 73d899373e01efe1fd72a895d8e2fe2f6bc8fcb2 /net/wireless/core.h | |
| parent | fe94f3a4ffaa20c7470038c69ffc8e545ef5f90a (diff) | |
| download | linux-9e0e29615a2077be852b1245b57c5b00fa609522.tar.bz2 | |
cfg80211: consider existing DFS interfaces
It was possible to break interface combinations in
the following way:
combo 1: iftype = AP, num_ifaces = 2, num_chans = 2,
combo 2: iftype = AP, num_ifaces = 1, num_chans = 1, radar = HT20
With the above interface combinations it was
possible to:
step 1. start AP on DFS channel by matching combo 2
step 2. start AP on non-DFS channel by matching combo 1
This was possible beacuse (step 2) did not consider
if other interfaces require radar detection.
The patch changes how cfg80211 tracks channels -
instead of channel itself now a complete chandef
is stored.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/core.h')
| -rw-r--r-- | net/wireless/core.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index 8a820f9c4a76..9895ab16c051 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -443,7 +443,8 @@ static inline unsigned int elapsed_jiffies_msecs(unsigned long start) void cfg80211_get_chan_state(struct wireless_dev *wdev, struct ieee80211_channel **chan, - enum cfg80211_chan_mode *chanmode); + enum cfg80211_chan_mode *chanmode, + u8 *radar_detect); int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev, struct cfg80211_chan_def *chandef); |