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cfg80211: correctly check ad-hoc channels

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Ad-hoc requires beaconing for regulatory purposes. Validate that the
channel is valid for beaconing, and not only enabled.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arik Nemtsov 2014-12-03 18:08:17 +02:00 committed by Johannes Berg
parent 70dcec5a48
commit 185076d6db
1 changed files with 7 additions and 1 deletions
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8
net/wireless/reg.c
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@ -1546,12 +1546,18 @@ static bool reg_wdev_chan_valid(struct wiphy *wiphy, struct wireless_dev *wdev)
if (!wdev->beacon_interval)
goto out;
ret = cfg80211_reg_can_beacon(wiphy,
&wdev->chandef, wdev->iftype);
break;
case NL80211_IFTYPE_ADHOC:
if (!wdev->ssid_len)
goto out;
ret = cfg80211_reg_can_beacon(wiphy,
&wdev->chandef, wdev->iftype);
break;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_ADHOC:
if (!wdev->current_bss ||
!wdev->current_bss->pub.channel)
goto out;