net/wireless/ap.c

   1 #include <linux/ieee80211.h>
   2 #include <linux/export.h>
   3 #include <net/cfg80211.h>
   4 #include "nl80211.h"
   5 #include "core.h"
   6 #include "rdev-ops.h"
   7
   8
   9 static int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
  10                               struct net_device *dev)
  11 {
  12         struct wireless_dev *wdev = dev->ieee80211_ptr;
  13         int err;
  14
  15         ASSERT_WDEV_LOCK(wdev);
  16
  17         if (!rdev->ops->stop_ap)
  18                 return -EOPNOTSUPP;
  19
  20         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
  21             dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
  22                 return -EOPNOTSUPP;
  23
  24         if (!wdev->beacon_interval)
  25                 return -ENOENT;
  26
  27         err = rdev_stop_ap(rdev, dev);
  28         if (!err) {
  29                 wdev->beacon_interval = 0;
  30                 wdev->channel = NULL;
  31                 wdev->ssid_len = 0;
  32         }
  33
  34         return err;
  35 }
  36
  37 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
  38                      struct net_device *dev)
  39 {
  40         struct wireless_dev *wdev = dev->ieee80211_ptr;
  41         int err;
  42
  43         wdev_lock(wdev);
  44         err = __cfg80211_stop_ap(rdev, dev);
  45         wdev_unlock(wdev);
  46
  47         return err;
  48 }