1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Parts of this file are 4 * Copyright (C) 2022 Intel Corporation 5 */ 6 #include <linux/ieee80211.h> 7 #include <linux/export.h> 8 #include <net/cfg80211.h> 9 #include "nl80211.h" 10 #include "core.h" 11 #include "rdev-ops.h" 12 13 14 static int ___cfg80211_stop_ap(struct cfg80211_registered_device *rdev, 15 struct net_device *dev, unsigned int link_id, 16 bool notify) 17 { 18 struct wireless_dev *wdev = dev->ieee80211_ptr; 19 int err; 20 21 ASSERT_WDEV_LOCK(wdev); 22 23 if (!rdev->ops->stop_ap) 24 return -EOPNOTSUPP; 25 26 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && 27 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) 28 return -EOPNOTSUPP; 29 30 if (!wdev->links[link_id].ap.beacon_interval) 31 return -ENOENT; 32 33 err = rdev_stop_ap(rdev, dev, link_id); 34 if (!err) { 35 wdev->conn_owner_nlportid = 0; 36 wdev->links[link_id].ap.beacon_interval = 0; 37 memset(&wdev->links[link_id].ap.chandef, 0, 38 sizeof(wdev->links[link_id].ap.chandef)); 39 wdev->u.ap.ssid_len = 0; 40 rdev_set_qos_map(rdev, dev, NULL); 41 if (notify) 42 nl80211_send_ap_stopped(wdev, link_id); 43 44 /* Should we apply the grace period during beaconing interface 45 * shutdown also? 46 */ 47 cfg80211_sched_dfs_chan_update(rdev); 48 } 49 50 schedule_work(&cfg80211_disconnect_work); 51 52 return err; 53 } 54 55 int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev, 56 struct net_device *dev, int link_id, 57 bool notify) 58 { 59 unsigned int link; 60 int ret = 0; 61 62 if (link_id >= 0) 63 return ___cfg80211_stop_ap(rdev, dev, link_id, notify); 64 65 for_each_valid_link(dev->ieee80211_ptr, link) { 66 int ret1 = ___cfg80211_stop_ap(rdev, dev, link, notify); 67 68 if (ret1) 69 ret = ret1; 70 /* try the next one also if one errored */ 71 } 72 73 return ret; 74 } 75 76 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev, 77 struct net_device *dev, int link_id, 78 bool notify) 79 { 80 struct wireless_dev *wdev = dev->ieee80211_ptr; 81 int err; 82 83 wdev_lock(wdev); 84 err = __cfg80211_stop_ap(rdev, dev, link_id, notify); 85 wdev_unlock(wdev); 86 87 return err; 88 } 89