GNU Linux-libre 4.14.266-gnu1
[releases.git] / net / wireless / ap.c
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
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->beacon_interval = 0;
31                 memset(&wdev->chandef, 0, sizeof(wdev->chandef));
32                 wdev->ssid_len = 0;
33                 rdev_set_qos_map(rdev, dev, NULL);
34                 if (notify)
35                         nl80211_send_ap_stopped(wdev);
36
37                 /* Should we apply the grace period during beaconing interface
38                  * shutdown also?
39                  */
40                 cfg80211_sched_dfs_chan_update(rdev);
41         }
42
43         schedule_work(&cfg80211_disconnect_work);
44
45         return err;
46 }
47
48 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
49                      struct net_device *dev, bool notify)
50 {
51         struct wireless_dev *wdev = dev->ieee80211_ptr;
52         int err;
53
54         wdev_lock(wdev);
55         err = __cfg80211_stop_ap(rdev, dev, notify);
56         wdev_unlock(wdev);
57
58         return err;
59 }