1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/ieee80211.h>
3 #include <linux/export.h>
4 #include <net/cfg80211.h>
5 #include "nl80211.h"
6 #include "core.h"
7 #include "rdev-ops.h"
8 
9 
__cfg80211_stop_ap(struct cfg80211_registered_device * rdev,struct net_device * dev,bool notify)10 int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
11 		       struct net_device *dev, bool notify)
12 {
13 	struct wireless_dev *wdev = dev->ieee80211_ptr;
14 	int err;
15 
16 	ASSERT_WDEV_LOCK(wdev);
17 
18 	if (!rdev->ops->stop_ap)
19 		return -EOPNOTSUPP;
20 
21 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
22 	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
23 		return -EOPNOTSUPP;
24 
25 	if (!wdev->beacon_interval)
26 		return -ENOENT;
27 
28 	err = rdev_stop_ap(rdev, dev);
29 	if (!err) {
30 		wdev->conn_owner_nlportid = 0;
31 		wdev->beacon_interval = 0;
32 		memset(&wdev->chandef, 0, sizeof(wdev->chandef));
33 		wdev->ssid_len = 0;
34 		rdev_set_qos_map(rdev, dev, NULL);
35 		if (notify)
36 			nl80211_send_ap_stopped(wdev);
37 
38 		/* Should we apply the grace period during beaconing interface
39 		 * shutdown also?
40 		 */
41 		cfg80211_sched_dfs_chan_update(rdev);
42 	}
43 
44 	schedule_work(&cfg80211_disconnect_work);
45 
46 	return err;
47 }
48 
cfg80211_stop_ap(struct cfg80211_registered_device * rdev,struct net_device * dev,bool notify)49 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
50 		     struct net_device *dev, bool notify)
51 {
52 	struct wireless_dev *wdev = dev->ieee80211_ptr;
53 	int err;
54 
55 	wdev_lock(wdev);
56 	err = __cfg80211_stop_ap(rdev, dev, notify);
57 	wdev_unlock(wdev);
58 
59 	return err;
60 }
61