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	Since we now prevent regulatory restore during STA disconnect
if concurrent AP interfaces are active, we need to reschedule
this check when the AP state changes. This fixes never doing
a restore when an AP is the last interface to stop. Or to put
it another way: we need to re-check after anything we check
here changes.
Cc: stable@vger.kernel.org
Fixes: 113f3aaa81 ("cfg80211: Prevent regulatory restore during STA disconnect in concurrent interfaces")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
		
	
			
		
			
				
	
	
		
			60 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			60 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// SPDX-License-Identifier: GPL-2.0
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#include <linux/ieee80211.h>
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#include <linux/export.h>
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#include <net/cfg80211.h>
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#include "nl80211.h"
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#include "core.h"
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#include "rdev-ops.h"
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int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
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		       struct net_device *dev, bool notify)
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{
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	struct wireless_dev *wdev = dev->ieee80211_ptr;
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	int err;
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	ASSERT_WDEV_LOCK(wdev);
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	if (!rdev->ops->stop_ap)
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		return -EOPNOTSUPP;
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	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
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	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
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		return -EOPNOTSUPP;
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	if (!wdev->beacon_interval)
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		return -ENOENT;
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	err = rdev_stop_ap(rdev, dev);
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	if (!err) {
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		wdev->conn_owner_nlportid = 0;
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		wdev->beacon_interval = 0;
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		memset(&wdev->chandef, 0, sizeof(wdev->chandef));
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		wdev->ssid_len = 0;
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		rdev_set_qos_map(rdev, dev, NULL);
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		if (notify)
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			nl80211_send_ap_stopped(wdev);
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		/* Should we apply the grace period during beaconing interface
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		 * shutdown also?
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		 */
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		cfg80211_sched_dfs_chan_update(rdev);
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	}
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	schedule_work(&cfg80211_disconnect_work);
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	return err;
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}
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int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
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		     struct net_device *dev, bool notify)
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{
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	struct wireless_dev *wdev = dev->ieee80211_ptr;
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	int err;
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	wdev_lock(wdev);
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	err = __cfg80211_stop_ap(rdev, dev, notify);
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	wdev_unlock(wdev);
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	return err;
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}
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