blob: 53dda7728f866dd3e7df234a242668c5dbe04f20 [file] [log] [blame]
Johannes Berg704232c2007-04-23 12:20:05 -07001/*
2 * This is the linux wireless configuration interface.
3 *
Johannes Berg5f2aa252010-01-17 15:49:02 +01004 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
Johannes Berg2740f0c2014-09-03 15:24:58 +03005 * Copyright 2013-2014 Intel Mobile Communications GmbH
Johannes Berg704232c2007-04-23 12:20:05 -07006 */
7
Joe Perchese9c02682010-11-16 19:56:49 -08008#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
Johannes Berg704232c2007-04-23 12:20:05 -070010#include <linux/if.h>
11#include <linux/module.h>
12#include <linux/err.h>
Johannes Berg704232c2007-04-23 12:20:05 -070013#include <linux/list.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090014#include <linux/slab.h>
Johannes Berg704232c2007-04-23 12:20:05 -070015#include <linux/nl80211.h>
16#include <linux/debugfs.h>
17#include <linux/notifier.h>
18#include <linux/device.h>
Zhu Yi16a832e2009-08-19 16:08:22 +080019#include <linux/etherdevice.h>
Johannes Berg1f87f7d2009-06-02 13:01:41 +020020#include <linux/rtnetlink.h>
Alexey Dobriyand43c36d2009-10-07 17:09:06 +040021#include <linux/sched.h>
Johannes Berg704232c2007-04-23 12:20:05 -070022#include <net/genetlink.h>
23#include <net/cfg80211.h>
Johannes Berg55682962007-09-20 13:09:35 -040024#include "nl80211.h"
Johannes Berg704232c2007-04-23 12:20:05 -070025#include "core.h"
26#include "sysfs.h"
Luis R. Rodriguez1ac61302009-05-02 00:37:21 -040027#include "debugfs.h"
Johannes Berga9a11622009-07-27 12:01:53 +020028#include "wext-compat.h"
Hila Gonene35e4d22012-06-27 17:19:42 +030029#include "rdev-ops.h"
Johannes Berg704232c2007-04-23 12:20:05 -070030
31/* name for sysfs, %d is appended */
32#define PHY_NAME "phy"
33
34MODULE_AUTHOR("Johannes Berg");
35MODULE_LICENSE("GPL");
36MODULE_DESCRIPTION("wireless configuration support");
Marcel Holtmannfb4e1562013-04-28 16:22:06 -070037MODULE_ALIAS_GENL_FAMILY(NL80211_GENL_NAME);
Johannes Berg704232c2007-04-23 12:20:05 -070038
Johannes Berg5fe231e2013-05-08 21:45:15 +020039/* RCU-protected (and RTNL for writers) */
Johannes Berg79c97e92009-07-07 03:56:12 +020040LIST_HEAD(cfg80211_rdev_list);
Johannes Bergf5ea9122009-08-07 16:17:38 +020041int cfg80211_rdev_list_generation;
Luis R. Rodrigueza1794392009-02-21 00:04:21 -050042
Johannes Berg704232c2007-04-23 12:20:05 -070043/* for debugfs */
44static struct dentry *ieee80211_debugfs_dir;
45
Alban Browaeyse60d7442009-11-25 15:13:00 +010046/* for the cleanup, scan and event works */
47struct workqueue_struct *cfg80211_wq;
48
Amitkumar Karwar40db6c72011-04-21 14:10:27 -070049static bool cfg80211_disable_40mhz_24ghz;
50module_param(cfg80211_disable_40mhz_24ghz, bool, 0644);
51MODULE_PARM_DESC(cfg80211_disable_40mhz_24ghz,
52 "Disable 40MHz support in the 2.4GHz band");
53
Johannes Berg79c97e92009-07-07 03:56:12 +020054struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
Johannes Berg55682962007-09-20 13:09:35 -040055{
Johannes Berg79c97e92009-07-07 03:56:12 +020056 struct cfg80211_registered_device *result = NULL, *rdev;
Johannes Berg55682962007-09-20 13:09:35 -040057
Johannes Berg5fe231e2013-05-08 21:45:15 +020058 ASSERT_RTNL();
Luis R. Rodriguez761cf7e2009-02-21 00:04:25 -050059
Johannes Berg79c97e92009-07-07 03:56:12 +020060 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
61 if (rdev->wiphy_idx == wiphy_idx) {
62 result = rdev;
Johannes Berg55682962007-09-20 13:09:35 -040063 break;
64 }
65 }
66
67 return result;
68}
69
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -050070int get_wiphy_idx(struct wiphy *wiphy)
71{
Zhao, Gangf26cbf42014-04-21 12:53:03 +080072 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
Johannes Bergf4173762012-12-03 18:23:37 +010073
Johannes Berg79c97e92009-07-07 03:56:12 +020074 return rdev->wiphy_idx;
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -050075}
76
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -050077struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
78{
Johannes Berg79c97e92009-07-07 03:56:12 +020079 struct cfg80211_registered_device *rdev;
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -050080
Johannes Berg5fe231e2013-05-08 21:45:15 +020081 ASSERT_RTNL();
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -050082
Johannes Berg79c97e92009-07-07 03:56:12 +020083 rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx);
84 if (!rdev)
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -050085 return NULL;
Johannes Berg79c97e92009-07-07 03:56:12 +020086 return &rdev->wiphy;
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -050087}
88
Ben Greear1998d902014-10-22 12:23:00 -070089static int cfg80211_dev_check_name(struct cfg80211_registered_device *rdev,
90 const char *newname)
Johannes Berg55682962007-09-20 13:09:35 -040091{
Johannes Berg79c97e92009-07-07 03:56:12 +020092 struct cfg80211_registered_device *rdev2;
Ben Greear1998d902014-10-22 12:23:00 -070093 int wiphy_idx, taken = -1, digits;
Johannes Berg55682962007-09-20 13:09:35 -040094
Johannes Berg5fe231e2013-05-08 21:45:15 +020095 ASSERT_RTNL();
Eric W. Biederman2940bb62008-05-08 14:30:18 -070096
Johannes Berg76232252010-10-11 14:46:52 -040097 /* prohibit calling the thing phy%d when %d is not its number */
98 sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
99 if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) {
100 /* count number of places needed to print wiphy_idx */
101 digits = 1;
102 while (wiphy_idx /= 10)
103 digits++;
104 /*
105 * deny the name if it is phy<idx> where <idx> is printed
106 * without leading zeroes. taken == strlen(newname) here
107 */
108 if (taken == strlen(PHY_NAME) + digits)
109 return -EINVAL;
110 }
111
Eric W. Biederman2940bb62008-05-08 14:30:18 -0700112 /* Ensure another device does not already have this name. */
Johannes Berg79c97e92009-07-07 03:56:12 +0200113 list_for_each_entry(rdev2, &cfg80211_rdev_list, list)
Ben Greear1998d902014-10-22 12:23:00 -0700114 if (strcmp(newname, wiphy_name(&rdev2->wiphy)) == 0)
Johannes Berg76232252010-10-11 14:46:52 -0400115 return -EINVAL;
Eric W. Biederman2940bb62008-05-08 14:30:18 -0700116
Ben Greear1998d902014-10-22 12:23:00 -0700117 return 0;
118}
119
120int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
121 char *newname)
122{
123 int result;
124
125 ASSERT_RTNL();
126
127 /* Ignore nop renames */
128 if (strcmp(newname, wiphy_name(&rdev->wiphy)) == 0)
129 return 0;
130
131 result = cfg80211_dev_check_name(rdev, newname);
132 if (result < 0)
133 return result;
134
Johannes Berg55682962007-09-20 13:09:35 -0400135 result = device_rename(&rdev->wiphy.dev, newname);
136 if (result)
Johannes Berg4bbf4d52009-03-24 09:35:46 +0100137 return result;
Johannes Berg55682962007-09-20 13:09:35 -0400138
Johannes Berg33c03602008-10-08 10:23:48 +0200139 if (rdev->wiphy.debugfsdir &&
140 !debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
Johannes Berg55682962007-09-20 13:09:35 -0400141 rdev->wiphy.debugfsdir,
142 rdev->wiphy.debugfsdir->d_parent,
143 newname))
Joe Perchese9c02682010-11-16 19:56:49 -0800144 pr_err("failed to rename debugfs dir to %s!\n", newname);
Johannes Berg55682962007-09-20 13:09:35 -0400145
Johannes Berg3bb20552014-05-26 13:52:25 +0200146 nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
Johannes Berg55682962007-09-20 13:09:35 -0400147
Johannes Berg4bbf4d52009-03-24 09:35:46 +0100148 return 0;
Johannes Berg55682962007-09-20 13:09:35 -0400149}
150
Johannes Berg463d0182009-07-14 00:33:35 +0200151int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
152 struct net *net)
153{
154 struct wireless_dev *wdev;
155 int err = 0;
156
Johannes Berg5be83de2009-11-19 00:56:28 +0100157 if (!(rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK))
Johannes Berg463d0182009-07-14 00:33:35 +0200158 return -EOPNOTSUPP;
159
Johannes Berg89a54e42012-06-15 14:33:17 +0200160 list_for_each_entry(wdev, &rdev->wdev_list, list) {
Johannes Bergba22fb52012-06-15 18:00:00 +0200161 if (!wdev->netdev)
162 continue;
Johannes Berg463d0182009-07-14 00:33:35 +0200163 wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
164 err = dev_change_net_namespace(wdev->netdev, net, "wlan%d");
165 if (err)
166 break;
167 wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
168 }
169
170 if (err) {
171 /* failed -- clean up to old netns */
172 net = wiphy_net(&rdev->wiphy);
173
Johannes Berg89a54e42012-06-15 14:33:17 +0200174 list_for_each_entry_continue_reverse(wdev, &rdev->wdev_list,
Johannes Berg463d0182009-07-14 00:33:35 +0200175 list) {
Johannes Bergba22fb52012-06-15 18:00:00 +0200176 if (!wdev->netdev)
177 continue;
Johannes Berg463d0182009-07-14 00:33:35 +0200178 wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
179 err = dev_change_net_namespace(wdev->netdev, net,
180 "wlan%d");
181 WARN_ON(err);
182 wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
183 }
Johannes Berg04600792010-08-05 17:45:15 +0200184
185 return err;
Johannes Berg463d0182009-07-14 00:33:35 +0200186 }
187
188 wiphy_net_set(&rdev->wiphy, net);
189
Johannes Berg04600792010-08-05 17:45:15 +0200190 err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev));
191 WARN_ON(err);
192
193 return 0;
Johannes Berg463d0182009-07-14 00:33:35 +0200194}
195
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200196static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
197{
Johannes Berg79c97e92009-07-07 03:56:12 +0200198 struct cfg80211_registered_device *rdev = data;
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200199
Hila Gonene35e4d22012-06-27 17:19:42 +0300200 rdev_rfkill_poll(rdev);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200201}
202
Johannes Bergf9f47522013-03-19 15:04:07 +0100203void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
204 struct wireless_dev *wdev)
205{
Johannes Berg5fe231e2013-05-08 21:45:15 +0200206 ASSERT_RTNL();
Johannes Bergf9f47522013-03-19 15:04:07 +0100207
208 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_P2P_DEVICE))
209 return;
210
211 if (!wdev->p2p_started)
212 return;
213
214 rdev_stop_p2p_device(rdev, wdev);
215 wdev->p2p_started = false;
216
217 rdev->opencount--;
218
Johannes Berga6173022014-01-22 11:14:18 +0200219 if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
220 if (WARN_ON(!rdev->scan_req->notified))
221 rdev->scan_req->aborted = true;
Johannes Bergf9d15d12014-01-22 11:14:19 +0200222 ___cfg80211_scan_done(rdev, false);
Johannes Berga6173022014-01-22 11:14:18 +0200223 }
Johannes Bergf9f47522013-03-19 15:04:07 +0100224}
225
Johannes Bergf6837ba2014-04-30 14:19:04 +0200226void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy)
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200227{
Johannes Bergf6837ba2014-04-30 14:19:04 +0200228 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200229 struct wireless_dev *wdev;
230
Johannes Bergf6837ba2014-04-30 14:19:04 +0200231 ASSERT_RTNL();
Johannes Bergf9f47522013-03-19 15:04:07 +0100232
Johannes Berg98104fde2012-06-16 00:19:54 +0200233 list_for_each_entry(wdev, &rdev->wdev_list, list) {
234 if (wdev->netdev) {
Johannes Bergba22fb52012-06-15 18:00:00 +0200235 dev_close(wdev->netdev);
Johannes Berg98104fde2012-06-16 00:19:54 +0200236 continue;
237 }
238 /* otherwise, check iftype */
239 switch (wdev->iftype) {
240 case NL80211_IFTYPE_P2P_DEVICE:
Johannes Bergf9f47522013-03-19 15:04:07 +0100241 cfg80211_stop_p2p_device(rdev, wdev);
Johannes Berg98104fde2012-06-16 00:19:54 +0200242 break;
243 default:
244 break;
245 }
246 }
Johannes Bergf6837ba2014-04-30 14:19:04 +0200247}
248EXPORT_SYMBOL_GPL(cfg80211_shutdown_all_interfaces);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200249
Johannes Bergf6837ba2014-04-30 14:19:04 +0200250static int cfg80211_rfkill_set_block(void *data, bool blocked)
251{
252 struct cfg80211_registered_device *rdev = data;
253
254 if (!blocked)
255 return 0;
256
257 rtnl_lock();
258 cfg80211_shutdown_all_interfaces(&rdev->wiphy);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200259 rtnl_unlock();
260
261 return 0;
262}
263
264static void cfg80211_rfkill_sync_work(struct work_struct *work)
265{
Johannes Berg79c97e92009-07-07 03:56:12 +0200266 struct cfg80211_registered_device *rdev;
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200267
Johannes Berg79c97e92009-07-07 03:56:12 +0200268 rdev = container_of(work, struct cfg80211_registered_device, rfkill_sync);
269 cfg80211_rfkill_set_block(rdev, rfkill_blocked(rdev->rfkill));
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200270}
271
Johannes Berg667503dd2009-07-07 03:56:11 +0200272static void cfg80211_event_work(struct work_struct *work)
273{
274 struct cfg80211_registered_device *rdev;
Johannes Berg667503dd2009-07-07 03:56:11 +0200275
276 rdev = container_of(work, struct cfg80211_registered_device,
277 event_work);
278
279 rtnl_lock();
Johannes Berg3d54d252009-08-21 14:51:05 +0200280 cfg80211_process_rdev_events(rdev);
Johannes Berg667503dd2009-07-07 03:56:11 +0200281 rtnl_unlock();
282}
283
Johannes Berg78f22b62014-03-24 17:57:27 +0100284void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev)
285{
286 struct cfg80211_iface_destroy *item;
287
288 ASSERT_RTNL();
289
290 spin_lock_irq(&rdev->destroy_list_lock);
291 while ((item = list_first_entry_or_null(&rdev->destroy_list,
292 struct cfg80211_iface_destroy,
293 list))) {
294 struct wireless_dev *wdev, *tmp;
295 u32 nlportid = item->nlportid;
296
297 list_del(&item->list);
298 kfree(item);
299 spin_unlock_irq(&rdev->destroy_list_lock);
300
301 list_for_each_entry_safe(wdev, tmp, &rdev->wdev_list, list) {
302 if (nlportid == wdev->owner_nlportid)
303 rdev_del_virtual_intf(rdev, wdev);
304 }
305
306 spin_lock_irq(&rdev->destroy_list_lock);
307 }
308 spin_unlock_irq(&rdev->destroy_list_lock);
309}
310
311static void cfg80211_destroy_iface_wk(struct work_struct *work)
312{
313 struct cfg80211_registered_device *rdev;
314
315 rdev = container_of(work, struct cfg80211_registered_device,
316 destroy_work);
317
318 rtnl_lock();
319 cfg80211_destroy_ifaces(rdev);
320 rtnl_unlock();
321}
322
Johannes Berg704232c2007-04-23 12:20:05 -0700323/* exported functions */
324
Ben Greear1998d902014-10-22 12:23:00 -0700325struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
326 const char *requested_name)
Johannes Berg704232c2007-04-23 12:20:05 -0700327{
Johannes Berg73810b72013-05-08 21:49:02 +0200328 static atomic_t wiphy_counter = ATOMIC_INIT(0);
Johannes Berg76232252010-10-11 14:46:52 -0400329
330 struct cfg80211_registered_device *rdev;
Johannes Berg704232c2007-04-23 12:20:05 -0700331 int alloc_size;
332
Johannes Berg0b20633d2009-07-07 03:56:13 +0200333 WARN_ON(ops->add_key && (!ops->del_key || !ops->set_default_key));
334 WARN_ON(ops->auth && (!ops->assoc || !ops->deauth || !ops->disassoc));
335 WARN_ON(ops->connect && !ops->disconnect);
336 WARN_ON(ops->join_ibss && !ops->leave_ibss);
337 WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf);
338 WARN_ON(ops->add_station && !ops->del_station);
339 WARN_ON(ops->add_mpath && !ops->del_mpath);
Johannes Berg29cbe682010-12-03 09:20:44 +0100340 WARN_ON(ops->join_mesh && !ops->leave_mesh);
Johannes Berg41ade002007-12-19 02:03:29 +0100341
Johannes Berg79c97e92009-07-07 03:56:12 +0200342 alloc_size = sizeof(*rdev) + sizeof_priv;
Johannes Berg704232c2007-04-23 12:20:05 -0700343
Johannes Berg79c97e92009-07-07 03:56:12 +0200344 rdev = kzalloc(alloc_size, GFP_KERNEL);
345 if (!rdev)
Johannes Berg704232c2007-04-23 12:20:05 -0700346 return NULL;
347
Johannes Berg79c97e92009-07-07 03:56:12 +0200348 rdev->ops = ops;
Johannes Berg704232c2007-04-23 12:20:05 -0700349
Johannes Berg73810b72013-05-08 21:49:02 +0200350 rdev->wiphy_idx = atomic_inc_return(&wiphy_counter);
Johannes Berga4d73ee2007-04-26 20:50:35 -0700351
Johannes Bergf4173762012-12-03 18:23:37 +0100352 if (unlikely(rdev->wiphy_idx < 0)) {
Johannes Berg76232252010-10-11 14:46:52 -0400353 /* ugh, wrapped! */
Johannes Berg73810b72013-05-08 21:49:02 +0200354 atomic_dec(&wiphy_counter);
Johannes Berg79c97e92009-07-07 03:56:12 +0200355 kfree(rdev);
Johannes Berg704232c2007-04-23 12:20:05 -0700356 return NULL;
357 }
Johannes Berg704232c2007-04-23 12:20:05 -0700358
Johannes Berg9b881962013-06-04 22:23:36 +0200359 /* atomic_inc_return makes it start at 1, make it start at 0 */
360 rdev->wiphy_idx--;
361
Johannes Berg76232252010-10-11 14:46:52 -0400362 /* give it a proper name */
Ben Greear1998d902014-10-22 12:23:00 -0700363 if (requested_name && requested_name[0]) {
364 int rv;
365
366 rtnl_lock();
367 rv = cfg80211_dev_check_name(rdev, requested_name);
368
369 if (rv < 0) {
370 rtnl_unlock();
371 goto use_default_name;
372 }
373
374 rv = dev_set_name(&rdev->wiphy.dev, "%s", requested_name);
375 rtnl_unlock();
376 if (rv)
377 goto use_default_name;
378 } else {
379use_default_name:
380 /* NOTE: This is *probably* safe w/out holding rtnl because of
381 * the restrictions on phy names. Probably this call could
382 * fail if some other part of the kernel (re)named a device
383 * phyX. But, might should add some locking and check return
384 * value, and use a different name if this one exists?
385 */
386 dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx);
387 }
Johannes Berg76232252010-10-11 14:46:52 -0400388
Johannes Berg89a54e42012-06-15 14:33:17 +0200389 INIT_LIST_HEAD(&rdev->wdev_list);
Ben Greear37c73b52012-10-26 14:49:25 -0700390 INIT_LIST_HEAD(&rdev->beacon_registrations);
391 spin_lock_init(&rdev->beacon_registrations_lock);
Johannes Berg79c97e92009-07-07 03:56:12 +0200392 spin_lock_init(&rdev->bss_lock);
393 INIT_LIST_HEAD(&rdev->bss_list);
394 INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
Luciano Coelho807f8a82011-05-11 17:09:35 +0300395 INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results);
Simon Wunderlich04f39042013-02-08 18:16:19 +0100396 INIT_DELAYED_WORK(&rdev->dfs_update_channels_wk,
397 cfg80211_dfs_channels_update_work);
Johannes Berg3d23e342009-09-29 23:27:28 +0200398#ifdef CONFIG_CFG80211_WEXT
399 rdev->wiphy.wext = &cfg80211_wext_handler;
400#endif
401
Johannes Berg79c97e92009-07-07 03:56:12 +0200402 device_initialize(&rdev->wiphy.dev);
403 rdev->wiphy.dev.class = &ieee80211_class;
404 rdev->wiphy.dev.platform_data = rdev;
Johannes Berg704232c2007-04-23 12:20:05 -0700405
Johannes Berg78f22b62014-03-24 17:57:27 +0100406 INIT_LIST_HEAD(&rdev->destroy_list);
407 spin_lock_init(&rdev->destroy_list_lock);
408 INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk);
409
Johannes Berg5be83de2009-11-19 00:56:28 +0100410#ifdef CONFIG_CFG80211_DEFAULT_PS
411 rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
412#endif
Johannes Berg16cb9d42009-08-12 23:33:20 +0200413
Johannes Berg463d0182009-07-14 00:33:35 +0200414 wiphy_net_set(&rdev->wiphy, &init_net);
415
Johannes Berg79c97e92009-07-07 03:56:12 +0200416 rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block;
417 rdev->rfkill = rfkill_alloc(dev_name(&rdev->wiphy.dev),
418 &rdev->wiphy.dev, RFKILL_TYPE_WLAN,
419 &rdev->rfkill_ops, rdev);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200420
Johannes Berg79c97e92009-07-07 03:56:12 +0200421 if (!rdev->rfkill) {
422 kfree(rdev);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200423 return NULL;
424 }
425
Johannes Berg79c97e92009-07-07 03:56:12 +0200426 INIT_WORK(&rdev->rfkill_sync, cfg80211_rfkill_sync_work);
427 INIT_WORK(&rdev->conn_work, cfg80211_conn_work);
428 INIT_WORK(&rdev->event_work, cfg80211_event_work);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200429
Johannes Bergad002392009-08-18 19:51:57 +0200430 init_waitqueue_head(&rdev->dev_wait);
431
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +0200432 /*
433 * Initialize wiphy parameters to IEEE 802.11 MIB default values.
434 * Fragmentation and RTS threshold are disabled by default with the
435 * special -1 value.
436 */
Johannes Berg79c97e92009-07-07 03:56:12 +0200437 rdev->wiphy.retry_short = 7;
438 rdev->wiphy.retry_long = 4;
439 rdev->wiphy.frag_threshold = (u32) -1;
440 rdev->wiphy.rts_threshold = (u32) -1;
Lukáš Turek81077e82009-12-21 22:50:47 +0100441 rdev->wiphy.coverage_class = 0;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +0200442
Andrei Otcheretianski9a774c72014-05-09 14:11:46 +0300443 rdev->wiphy.max_num_csa_counters = 1;
444
Johannes Berg79c97e92009-07-07 03:56:12 +0200445 return &rdev->wiphy;
Johannes Berg704232c2007-04-23 12:20:05 -0700446}
Ben Greear1998d902014-10-22 12:23:00 -0700447EXPORT_SYMBOL(wiphy_new_nm);
Johannes Berg704232c2007-04-23 12:20:05 -0700448
Johannes Berg7527a782011-05-13 10:58:57 +0200449static int wiphy_verify_combinations(struct wiphy *wiphy)
450{
451 const struct ieee80211_iface_combination *c;
452 int i, j;
453
Johannes Berg7527a782011-05-13 10:58:57 +0200454 for (i = 0; i < wiphy->n_iface_combinations; i++) {
455 u32 cnt = 0;
456 u16 all_iftypes = 0;
457
458 c = &wiphy->iface_combinations[i];
459
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100460 /*
461 * Combinations with just one interface aren't real,
462 * however we make an exception for DFS.
463 */
464 if (WARN_ON((c->max_interfaces < 2) && !c->radar_detect_widths))
Johannes Berg7527a782011-05-13 10:58:57 +0200465 return -EINVAL;
466
467 /* Need at least one channel */
468 if (WARN_ON(!c->num_different_channels))
469 return -EINVAL;
470
Michal Kaziord4e50c52012-06-29 12:47:07 +0200471 /*
472 * Put a sane limit on maximum number of different
473 * channels to simplify channel accounting code.
474 */
475 if (WARN_ON(c->num_different_channels >
476 CFG80211_MAX_NUM_DIFFERENT_CHANNELS))
477 return -EINVAL;
478
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100479 /* DFS only works on one channel. */
480 if (WARN_ON(c->radar_detect_widths &&
481 (c->num_different_channels > 1)))
482 return -EINVAL;
483
Johannes Berg7527a782011-05-13 10:58:57 +0200484 if (WARN_ON(!c->n_limits))
485 return -EINVAL;
486
487 for (j = 0; j < c->n_limits; j++) {
488 u16 types = c->limits[j].types;
489
Luciano Coelhob6a55012014-02-27 11:07:21 +0200490 /* interface types shouldn't overlap */
Johannes Berg7527a782011-05-13 10:58:57 +0200491 if (WARN_ON(types & all_iftypes))
492 return -EINVAL;
493 all_iftypes |= types;
494
495 if (WARN_ON(!c->limits[j].max))
496 return -EINVAL;
497
498 /* Shouldn't list software iftypes in combinations! */
499 if (WARN_ON(wiphy->software_iftypes & types))
500 return -EINVAL;
501
Johannes Berg98104fde2012-06-16 00:19:54 +0200502 /* Only a single P2P_DEVICE can be allowed */
503 if (WARN_ON(types & BIT(NL80211_IFTYPE_P2P_DEVICE) &&
504 c->limits[j].max > 1))
505 return -EINVAL;
506
Johannes Berg7527a782011-05-13 10:58:57 +0200507 cnt += c->limits[j].max;
508 /*
509 * Don't advertise an unsupported type
510 * in a combination.
511 */
512 if (WARN_ON((wiphy->interface_modes & types) != types))
513 return -EINVAL;
514 }
515
516 /* You can't even choose that many! */
517 if (WARN_ON(cnt < c->max_interfaces))
518 return -EINVAL;
519 }
520
521 return 0;
522}
523
Johannes Berg704232c2007-04-23 12:20:05 -0700524int wiphy_register(struct wiphy *wiphy)
525{
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800526 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
Johannes Berg704232c2007-04-23 12:20:05 -0700527 int res;
Johannes Berg8318d782008-01-24 19:38:38 +0100528 enum ieee80211_band band;
529 struct ieee80211_supported_band *sband;
530 bool have_band = false;
531 int i;
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -0700532 u16 ifmodes = wiphy->interface_modes;
533
Johannes Bergdfb89c52012-06-27 09:23:48 +0200534#ifdef CONFIG_PM
Johannes Berg964dc9e2013-06-03 17:25:34 +0200535 if (WARN_ON(wiphy->wowlan &&
536 (wiphy->wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
537 !(wiphy->wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
538 return -EINVAL;
539 if (WARN_ON(wiphy->wowlan &&
540 !wiphy->wowlan->flags && !wiphy->wowlan->n_patterns &&
541 !wiphy->wowlan->tcp))
Johannes Berg77dbbb12011-07-13 10:48:55 +0200542 return -EINVAL;
Johannes Bergdfb89c52012-06-27 09:23:48 +0200543#endif
Arik Nemtsov1057d352014-11-19 12:54:26 +0200544 if (WARN_ON((wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) &&
545 (!rdev->ops->tdls_channel_switch ||
546 !rdev->ops->tdls_cancel_channel_switch)))
547 return -EINVAL;
Johannes Berg77dbbb12011-07-13 10:48:55 +0200548
Arik Nemtsovad932f02014-11-27 09:44:55 +0200549 /*
550 * if a wiphy has unsupported modes for regulatory channel enforcement,
551 * opt-out of enforcement checking
552 */
553 if (wiphy->interface_modes & ~(BIT(NL80211_IFTYPE_STATION) |
554 BIT(NL80211_IFTYPE_P2P_CLIENT) |
555 BIT(NL80211_IFTYPE_AP) |
556 BIT(NL80211_IFTYPE_P2P_GO) |
557 BIT(NL80211_IFTYPE_ADHOC) |
558 BIT(NL80211_IFTYPE_P2P_DEVICE) |
559 BIT(NL80211_IFTYPE_AP_VLAN) |
560 BIT(NL80211_IFTYPE_MONITOR)))
561 wiphy->regulatory_flags |= REGULATORY_IGNORE_STALE_KICKOFF;
562
Amitkumar Karwarbe29b992013-06-28 11:51:26 -0700563 if (WARN_ON(wiphy->coalesce &&
564 (!wiphy->coalesce->n_rules ||
565 !wiphy->coalesce->n_patterns) &&
566 (!wiphy->coalesce->pattern_min_len ||
567 wiphy->coalesce->pattern_min_len >
568 wiphy->coalesce->pattern_max_len)))
569 return -EINVAL;
570
Johannes Berg562a7482011-11-07 12:39:33 +0100571 if (WARN_ON(wiphy->ap_sme_capa &&
572 !(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME)))
573 return -EINVAL;
574
Johannes Bergef15aac2010-01-20 12:02:33 +0100575 if (WARN_ON(wiphy->addresses && !wiphy->n_addresses))
576 return -EINVAL;
577
578 if (WARN_ON(wiphy->addresses &&
579 !is_zero_ether_addr(wiphy->perm_addr) &&
580 memcmp(wiphy->perm_addr, wiphy->addresses[0].addr,
581 ETH_ALEN)))
582 return -EINVAL;
583
Vasanthakumar Thiagarajan77765ea2013-01-18 11:18:45 +0530584 if (WARN_ON(wiphy->max_acl_mac_addrs &&
585 (!(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME) ||
586 !rdev->ops->set_mac_acl)))
587 return -EINVAL;
588
Johannes Bergef15aac2010-01-20 12:02:33 +0100589 if (wiphy->addresses)
590 memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN);
591
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -0700592 /* sanity check ifmodes */
593 WARN_ON(!ifmodes);
Johannes Berg2e161f72010-08-12 15:38:38 +0200594 ifmodes &= ((1 << NUM_NL80211_IFTYPES) - 1) & ~1;
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -0700595 if (WARN_ON(ifmodes != wiphy->interface_modes))
596 wiphy->interface_modes = ifmodes;
Johannes Berg8318d782008-01-24 19:38:38 +0100597
Johannes Berg7527a782011-05-13 10:58:57 +0200598 res = wiphy_verify_combinations(wiphy);
599 if (res)
600 return res;
601
Johannes Berg8318d782008-01-24 19:38:38 +0100602 /* sanity check supported bands/channels */
603 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
604 sband = wiphy->bands[band];
605 if (!sband)
606 continue;
607
608 sband->band = band;
Vladimir Kondratiev3a0c52a2012-07-02 09:32:32 +0300609 if (WARN_ON(!sband->n_channels))
610 return -EINVAL;
611 /*
612 * on 60gHz band, there are no legacy rates, so
613 * n_bitrates is 0
614 */
615 if (WARN_ON(band != IEEE80211_BAND_60GHZ &&
616 !sband->n_bitrates))
Johannes Berg8318d782008-01-24 19:38:38 +0100617 return -EINVAL;
Johannes Berg881d9482009-01-21 15:13:48 +0100618
619 /*
Amitkumar Karwar40db6c72011-04-21 14:10:27 -0700620 * Since cfg80211_disable_40mhz_24ghz is global, we can
621 * modify the sband's ht data even if the driver uses a
622 * global structure for that.
623 */
624 if (cfg80211_disable_40mhz_24ghz &&
625 band == IEEE80211_BAND_2GHZ &&
626 sband->ht_cap.ht_supported) {
627 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
628 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40;
629 }
630
631 /*
Johannes Berg881d9482009-01-21 15:13:48 +0100632 * Since we use a u32 for rate bitmaps in
633 * ieee80211_get_response_rate, we cannot
634 * have more than 32 legacy rates.
635 */
636 if (WARN_ON(sband->n_bitrates > 32))
637 return -EINVAL;
Johannes Berg8318d782008-01-24 19:38:38 +0100638
639 for (i = 0; i < sband->n_channels; i++) {
640 sband->channels[i].orig_flags =
641 sband->channels[i].flags;
Felix Fietkauc4a9faf2012-10-17 13:56:19 +0200642 sband->channels[i].orig_mag = INT_MAX;
Johannes Berg8318d782008-01-24 19:38:38 +0100643 sband->channels[i].orig_mpwr =
644 sband->channels[i].max_power;
645 sband->channels[i].band = band;
646 }
647
648 have_band = true;
649 }
650
651 if (!have_band) {
652 WARN_ON(1);
653 return -EINVAL;
654 }
655
Johannes Bergdfb89c52012-06-27 09:23:48 +0200656#ifdef CONFIG_PM
Johannes Berg964dc9e2013-06-03 17:25:34 +0200657 if (WARN_ON(rdev->wiphy.wowlan && rdev->wiphy.wowlan->n_patterns &&
658 (!rdev->wiphy.wowlan->pattern_min_len ||
659 rdev->wiphy.wowlan->pattern_min_len >
660 rdev->wiphy.wowlan->pattern_max_len)))
661 return -EINVAL;
Johannes Bergdfb89c52012-06-27 09:23:48 +0200662#endif
Johannes Bergff1b6e62011-05-04 15:37:28 +0200663
Johannes Berg8318d782008-01-24 19:38:38 +0100664 /* check and set up bitrates */
665 ieee80211_set_bitrate_flags(wiphy);
666
Johannes Berg00c3a6e2013-10-26 17:14:38 +0200667 rdev->wiphy.features |= NL80211_FEATURE_SCAN_FLUSH;
668
Johannes Bergaa5f66d2013-09-26 20:03:45 +0200669 rtnl_lock();
Johannes Berg79c97e92009-07-07 03:56:12 +0200670 res = device_add(&rdev->wiphy.dev);
John W. Linvillec3d34d52010-08-30 17:36:40 -0400671 if (res) {
Johannes Bergaa5f66d2013-09-26 20:03:45 +0200672 rtnl_unlock();
John W. Linvillec3d34d52010-08-30 17:36:40 -0400673 return res;
674 }
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200675
Johannes Berg2f0accc2009-06-10 16:50:29 +0200676 /* set up regulatory info */
Luis R. Rodriguez57b5ce02012-07-12 11:49:18 -0700677 wiphy_regulatory_register(wiphy);
Johannes Berg2f0accc2009-06-10 16:50:29 +0200678
Johannes Berg5f2aa252010-01-17 15:49:02 +0100679 list_add_rcu(&rdev->list, &cfg80211_rdev_list);
Johannes Bergf5ea9122009-08-07 16:17:38 +0200680 cfg80211_rdev_list_generation++;
Johannes Berg704232c2007-04-23 12:20:05 -0700681
682 /* add to debugfs */
Johannes Berg79c97e92009-07-07 03:56:12 +0200683 rdev->wiphy.debugfsdir =
684 debugfs_create_dir(wiphy_name(&rdev->wiphy),
Johannes Berg704232c2007-04-23 12:20:05 -0700685 ieee80211_debugfs_dir);
Johannes Berg79c97e92009-07-07 03:56:12 +0200686 if (IS_ERR(rdev->wiphy.debugfsdir))
687 rdev->wiphy.debugfsdir = NULL;
Johannes Berg704232c2007-04-23 12:20:05 -0700688
Tomasz Bursztykaa796dac2014-08-13 16:04:51 +0300689 cfg80211_debugfs_rdev_add(rdev);
690 nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
691
Luis R. Rodrigueza2f73b62013-11-11 22:15:29 +0100692 if (wiphy->regulatory_flags & REGULATORY_CUSTOM_REG) {
Luis R. Rodriguez73d54c92009-03-09 22:07:42 -0400693 struct regulatory_request request;
694
695 request.wiphy_idx = get_wiphy_idx(wiphy);
696 request.initiator = NL80211_REGDOM_SET_BY_DRIVER;
697 request.alpha2[0] = '9';
698 request.alpha2[1] = '9';
699
700 nl80211_send_reg_change_event(&request);
701 }
702
Stanislaw Gruszkaecb44332011-08-12 14:00:59 +0200703 rdev->wiphy.registered = true;
704 rtnl_unlock();
Johannes Bergaa5f66d2013-09-26 20:03:45 +0200705
706 res = rfkill_register(rdev->rfkill);
707 if (res) {
708 rfkill_destroy(rdev->rfkill);
709 rdev->rfkill = NULL;
710 wiphy_unregister(&rdev->wiphy);
711 return res;
712 }
713
Johannes Berg2f0accc2009-06-10 16:50:29 +0200714 return 0;
Johannes Berg704232c2007-04-23 12:20:05 -0700715}
716EXPORT_SYMBOL(wiphy_register);
717
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200718void wiphy_rfkill_start_polling(struct wiphy *wiphy)
719{
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800720 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200721
Johannes Berg79c97e92009-07-07 03:56:12 +0200722 if (!rdev->ops->rfkill_poll)
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200723 return;
Johannes Berg79c97e92009-07-07 03:56:12 +0200724 rdev->rfkill_ops.poll = cfg80211_rfkill_poll;
725 rfkill_resume_polling(rdev->rfkill);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200726}
727EXPORT_SYMBOL(wiphy_rfkill_start_polling);
728
729void wiphy_rfkill_stop_polling(struct wiphy *wiphy)
730{
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800731 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200732
Johannes Berg79c97e92009-07-07 03:56:12 +0200733 rfkill_pause_polling(rdev->rfkill);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200734}
735EXPORT_SYMBOL(wiphy_rfkill_stop_polling);
736
Johannes Berg704232c2007-04-23 12:20:05 -0700737void wiphy_unregister(struct wiphy *wiphy)
738{
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800739 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
Johannes Berg704232c2007-04-23 12:20:05 -0700740
Johannes Berg5fe231e2013-05-08 21:45:15 +0200741 wait_event(rdev->dev_wait, ({
742 int __count;
743 rtnl_lock();
744 __count = rdev->opencount;
745 rtnl_unlock();
746 __count == 0; }));
747
Johannes Bergaa5f66d2013-09-26 20:03:45 +0200748 if (rdev->rfkill)
749 rfkill_unregister(rdev->rfkill);
Johannes Berg256c90d2013-06-04 19:21:08 +0200750
Stanislaw Gruszkaecb44332011-08-12 14:00:59 +0200751 rtnl_lock();
Johannes Berg3bb20552014-05-26 13:52:25 +0200752 nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
Stanislaw Gruszkaecb44332011-08-12 14:00:59 +0200753 rdev->wiphy.registered = false;
Stanislaw Gruszkaecb44332011-08-12 14:00:59 +0200754
Johannes Berg2fd05112014-04-29 17:52:36 +0200755 WARN_ON(!list_empty(&rdev->wdev_list));
Johannes Bergad002392009-08-18 19:51:57 +0200756
757 /*
758 * First remove the hardware from everywhere, this makes
759 * it impossible to find from userspace.
760 */
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100761 debugfs_remove_recursive(rdev->wiphy.debugfsdir);
Johannes Berg5f2aa252010-01-17 15:49:02 +0100762 list_del_rcu(&rdev->list);
763 synchronize_rcu();
Johannes Bergf16bfc12007-04-26 20:51:12 -0700764
765 /*
Luis R. Rodriguezbfead082012-07-12 11:49:19 -0700766 * If this device got a regulatory hint tell core its
767 * free to listen now to a new shiny device regulatory hint
768 */
769 wiphy_regulatory_deregister(wiphy);
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -0800770
Johannes Bergf5ea9122009-08-07 16:17:38 +0200771 cfg80211_rdev_list_generation++;
Johannes Berg79c97e92009-07-07 03:56:12 +0200772 device_del(&rdev->wiphy.dev);
Johannes Berg704232c2007-04-23 12:20:05 -0700773
Johannes Berg5fe231e2013-05-08 21:45:15 +0200774 rtnl_unlock();
Johannes Berg66825882009-07-13 13:24:44 +0200775
Johannes Berg36e6fea2009-08-12 22:21:21 +0200776 flush_work(&rdev->scan_done_wk);
Johannes Berg66825882009-07-13 13:24:44 +0200777 cancel_work_sync(&rdev->conn_work);
Johannes Berg66825882009-07-13 13:24:44 +0200778 flush_work(&rdev->event_work);
Simon Wunderlich04f39042013-02-08 18:16:19 +0100779 cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
Johannes Berg78f22b62014-03-24 17:57:27 +0100780 flush_work(&rdev->destroy_work);
Johannes Berg6d525632012-04-04 15:05:25 +0200781
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200782#ifdef CONFIG_PM
783 if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
Hila Gonene35e4d22012-06-27 17:19:42 +0300784 rdev_set_wakeup(rdev, false);
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200785#endif
Johannes Berg6d525632012-04-04 15:05:25 +0200786 cfg80211_rdev_free_wowlan(rdev);
Amitkumar Karwarbe29b992013-06-28 11:51:26 -0700787 cfg80211_rdev_free_coalesce(rdev);
Johannes Berg704232c2007-04-23 12:20:05 -0700788}
789EXPORT_SYMBOL(wiphy_unregister);
790
Johannes Berg79c97e92009-07-07 03:56:12 +0200791void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
Johannes Berg704232c2007-04-23 12:20:05 -0700792{
Johannes Berg2a519312009-02-10 21:25:55 +0100793 struct cfg80211_internal_bss *scan, *tmp;
Ben Greear37c73b52012-10-26 14:49:25 -0700794 struct cfg80211_beacon_registration *reg, *treg;
Johannes Berg79c97e92009-07-07 03:56:12 +0200795 rfkill_destroy(rdev->rfkill);
Ben Greear37c73b52012-10-26 14:49:25 -0700796 list_for_each_entry_safe(reg, treg, &rdev->beacon_registrations, list) {
797 list_del(&reg->list);
798 kfree(reg);
799 }
Johannes Berg79c97e92009-07-07 03:56:12 +0200800 list_for_each_entry_safe(scan, tmp, &rdev->bss_list, list)
Johannes Berg5b112d32013-02-01 01:49:58 +0100801 cfg80211_put_bss(&rdev->wiphy, &scan->pub);
Johannes Berg79c97e92009-07-07 03:56:12 +0200802 kfree(rdev);
Johannes Berg704232c2007-04-23 12:20:05 -0700803}
804
805void wiphy_free(struct wiphy *wiphy)
806{
807 put_device(&wiphy->dev);
808}
809EXPORT_SYMBOL(wiphy_free);
810
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200811void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
812{
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800813 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200814
Johannes Berg79c97e92009-07-07 03:56:12 +0200815 if (rfkill_set_hw_state(rdev->rfkill, blocked))
816 schedule_work(&rdev->rfkill_sync);
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200817}
818EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);
819
Johannes Berg98104fde2012-06-16 00:19:54 +0200820void cfg80211_unregister_wdev(struct wireless_dev *wdev)
821{
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800822 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
Johannes Berg98104fde2012-06-16 00:19:54 +0200823
824 ASSERT_RTNL();
825
826 if (WARN_ON(wdev->netdev))
827 return;
828
Johannes Berg98104fde2012-06-16 00:19:54 +0200829 list_del_rcu(&wdev->list);
830 rdev->devlist_generation++;
831
832 switch (wdev->iftype) {
833 case NL80211_IFTYPE_P2P_DEVICE:
Johannes Bergf9f47522013-03-19 15:04:07 +0100834 cfg80211_stop_p2p_device(rdev, wdev);
Johannes Berg98104fde2012-06-16 00:19:54 +0200835 break;
836 default:
837 WARN_ON_ONCE(1);
838 break;
839 }
Johannes Berg98104fde2012-06-16 00:19:54 +0200840}
841EXPORT_SYMBOL(cfg80211_unregister_wdev);
842
Johannes Bergf1e3d552014-01-21 00:00:56 +0100843static const struct device_type wiphy_type = {
Marcel Holtmann053a93d2009-10-02 05:15:28 +0000844 .name = "wlan",
845};
846
Michal Kaziordbbae262012-06-29 12:47:01 +0200847void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
848 enum nl80211_iftype iftype, int num)
849{
Johannes Bergc5a7e582012-07-04 13:28:18 +0200850 ASSERT_RTNL();
Michal Kaziordbbae262012-06-29 12:47:01 +0200851
852 rdev->num_running_ifaces += num;
853 if (iftype == NL80211_IFTYPE_MONITOR)
854 rdev->num_running_monitor_ifaces += num;
Michal Kaziordbbae262012-06-29 12:47:01 +0200855}
856
Michal Kaziorf04c2202014-04-09 15:11:01 +0200857void __cfg80211_leave(struct cfg80211_registered_device *rdev,
858 struct wireless_dev *wdev)
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100859{
860 struct net_device *dev = wdev->netdev;
861
Barak Bercovitz24d584d2013-12-05 11:21:26 +0200862 ASSERT_RTNL();
Michal Kaziorf04c2202014-04-09 15:11:01 +0200863 ASSERT_WDEV_LOCK(wdev);
Barak Bercovitz24d584d2013-12-05 11:21:26 +0200864
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100865 switch (wdev->iftype) {
866 case NL80211_IFTYPE_ADHOC:
Michal Kaziorf04c2202014-04-09 15:11:01 +0200867 __cfg80211_leave_ibss(rdev, dev, true);
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100868 break;
869 case NL80211_IFTYPE_P2P_CLIENT:
870 case NL80211_IFTYPE_STATION:
Barak Bercovitz24d584d2013-12-05 11:21:26 +0200871 if (rdev->sched_scan_req && dev == rdev->sched_scan_req->dev)
872 __cfg80211_stop_sched_scan(rdev, false);
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100873
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100874#ifdef CONFIG_CFG80211_WEXT
875 kfree(wdev->wext.ie);
876 wdev->wext.ie = NULL;
877 wdev->wext.ie_len = 0;
878 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
879#endif
Johannes Berg83739b02013-05-15 17:44:01 +0200880 cfg80211_disconnect(rdev, dev,
881 WLAN_REASON_DEAUTH_LEAVING, true);
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100882 break;
883 case NL80211_IFTYPE_MESH_POINT:
Michal Kaziorf04c2202014-04-09 15:11:01 +0200884 __cfg80211_leave_mesh(rdev, dev);
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100885 break;
886 case NL80211_IFTYPE_AP:
Johannes Berg74418ed2013-07-30 10:11:25 +0200887 case NL80211_IFTYPE_P2P_GO:
Michal Kaziorf04c2202014-04-09 15:11:01 +0200888 __cfg80211_stop_ap(rdev, dev, true);
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100889 break;
Rostislav Lisovy6e0bd6c2014-11-03 10:33:18 +0100890 case NL80211_IFTYPE_OCB:
891 __cfg80211_leave_ocb(rdev, dev);
892 break;
Johannes Bergde4fcba2014-10-31 14:16:12 +0100893 case NL80211_IFTYPE_WDS:
894 /* must be handled by mac80211/driver, has no APIs */
895 break;
896 case NL80211_IFTYPE_P2P_DEVICE:
897 /* cannot happen, has no netdev */
898 break;
899 case NL80211_IFTYPE_AP_VLAN:
900 case NL80211_IFTYPE_MONITOR:
901 /* nothing to do */
902 break;
903 case NL80211_IFTYPE_UNSPECIFIED:
904 case NUM_NL80211_IFTYPES:
905 /* invalid */
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100906 break;
907 }
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100908}
909
Michal Kaziorf04c2202014-04-09 15:11:01 +0200910void cfg80211_leave(struct cfg80211_registered_device *rdev,
911 struct wireless_dev *wdev)
912{
913 wdev_lock(wdev);
914 __cfg80211_leave(rdev, wdev);
915 wdev_unlock(wdev);
916}
917
918void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev,
919 gfp_t gfp)
920{
921 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
922 struct cfg80211_event *ev;
923 unsigned long flags;
924
925 trace_cfg80211_stop_iface(wiphy, wdev);
926
927 ev = kzalloc(sizeof(*ev), gfp);
928 if (!ev)
929 return;
930
931 ev->type = EVENT_STOPPED;
932
933 spin_lock_irqsave(&wdev->event_lock, flags);
934 list_add_tail(&ev->list, &wdev->event_list);
935 spin_unlock_irqrestore(&wdev->event_lock, flags);
936 queue_work(cfg80211_wq, &rdev->event_work);
937}
938EXPORT_SYMBOL(cfg80211_stop_iface);
939
Cristian Chilipireac4f60842012-05-08 12:38:53 +0300940static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
Jiri Pirko351638e2013-05-28 01:30:21 +0000941 unsigned long state, void *ptr)
Johannes Berg704232c2007-04-23 12:20:05 -0700942{
Jiri Pirko351638e2013-05-28 01:30:21 +0000943 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
Johannes Berg2a783c12009-07-01 21:26:45 +0200944 struct wireless_dev *wdev = dev->ieee80211_ptr;
Johannes Berg704232c2007-04-23 12:20:05 -0700945 struct cfg80211_registered_device *rdev;
946
Johannes Berg2a783c12009-07-01 21:26:45 +0200947 if (!wdev)
Johannes Berg1f87f7d2009-06-02 13:01:41 +0200948 return NOTIFY_DONE;
Johannes Berg704232c2007-04-23 12:20:05 -0700949
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800950 rdev = wiphy_to_rdev(wdev->wiphy);
Johannes Berg704232c2007-04-23 12:20:05 -0700951
Johannes Berg2a783c12009-07-01 21:26:45 +0200952 WARN_ON(wdev->iftype == NL80211_IFTYPE_UNSPECIFIED);
Johannes Berg60719ff2008-09-16 14:55:09 +0200953
Johannes Berg704232c2007-04-23 12:20:05 -0700954 switch (state) {
Marcel Holtmann053a93d2009-10-02 05:15:28 +0000955 case NETDEV_POST_INIT:
956 SET_NETDEV_DEVTYPE(dev, &wiphy_type);
957 break;
Johannes Berg704232c2007-04-23 12:20:05 -0700958 case NETDEV_REGISTER:
Johannes Berg0ff6ce72009-08-17 12:25:37 +0200959 /*
960 * NB: cannot take rdev->mtx here because this may be
961 * called within code protected by it when interfaces
962 * are added with nl80211.
963 */
Johannes Berg667503dd2009-07-07 03:56:11 +0200964 mutex_init(&wdev->mtx);
965 INIT_LIST_HEAD(&wdev->event_list);
966 spin_lock_init(&wdev->event_lock);
Johannes Berg2e161f72010-08-12 15:38:38 +0200967 INIT_LIST_HEAD(&wdev->mgmt_registrations);
968 spin_lock_init(&wdev->mgmt_registrations_lock);
Jouni Malinen026331c2010-02-15 12:53:10 +0200969
Johannes Berg89a54e42012-06-15 14:33:17 +0200970 wdev->identifier = ++rdev->wdev_id;
971 list_add_rcu(&wdev->list, &rdev->wdev_list);
Johannes Bergf5ea9122009-08-07 16:17:38 +0200972 rdev->devlist_generation++;
Johannes Berg463d0182009-07-14 00:33:35 +0200973 /* can only change netns with wiphy */
974 dev->features |= NETIF_F_NETNS_LOCAL;
975
Johannes Berg704232c2007-04-23 12:20:05 -0700976 if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
977 "phy80211")) {
Joe Perchese9c02682010-11-16 19:56:49 -0800978 pr_err("failed to add phy80211 symlink to netdev!\n");
Johannes Berg704232c2007-04-23 12:20:05 -0700979 }
Johannes Berg2a783c12009-07-01 21:26:45 +0200980 wdev->netdev = dev;
Johannes Berg3d23e342009-09-29 23:27:28 +0200981#ifdef CONFIG_CFG80211_WEXT
Johannes Berg2a783c12009-07-01 21:26:45 +0200982 wdev->wext.default_key = -1;
983 wdev->wext.default_mgmt_key = -1;
Johannes Bergf2129352009-07-01 21:26:56 +0200984 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
Kalle Valoffb9eb32010-02-17 17:58:10 +0200985#endif
986
Johannes Berg5be83de2009-11-19 00:56:28 +0100987 if (wdev->wiphy->flags & WIPHY_FLAG_PS_ON_BY_DEFAULT)
Kalle Valoffb9eb32010-02-17 17:58:10 +0200988 wdev->ps = true;
Johannes Berg5be83de2009-11-19 00:56:28 +0100989 else
Kalle Valoffb9eb32010-02-17 17:58:10 +0200990 wdev->ps = false;
Juuso Oikarinen9043f3b2010-04-27 12:47:41 +0300991 /* allow mac80211 to determine the timeout */
992 wdev->ps_timeout = -1;
Kalle Valoffb9eb32010-02-17 17:58:10 +0200993
Johannes Bergad4bb6f2009-11-19 00:56:30 +0100994 if ((wdev->iftype == NL80211_IFTYPE_STATION ||
Johannes Berg074ac8d2010-09-16 14:58:22 +0200995 wdev->iftype == NL80211_IFTYPE_P2P_CLIENT ||
Johannes Bergad4bb6f2009-11-19 00:56:30 +0100996 wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr)
997 dev->priv_flags |= IFF_DONT_BRIDGE;
Johannes Berg704232c2007-04-23 12:20:05 -0700998 break;
Johannes Berg04a773a2009-04-19 21:24:32 +0200999 case NETDEV_GOING_DOWN:
Stanislaw Gruszka81256962013-02-28 10:55:25 +01001000 cfg80211_leave(rdev, wdev);
Johannes Berg01a0ac42009-08-20 21:36:16 +02001001 break;
1002 case NETDEV_DOWN:
Michal Kaziordbbae262012-06-29 12:47:01 +02001003 cfg80211_update_iface_num(rdev, wdev->iftype, -1);
Johannes Berga6173022014-01-22 11:14:18 +02001004 if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
1005 if (WARN_ON(!rdev->scan_req->notified))
1006 rdev->scan_req->aborted = true;
Johannes Bergf9d15d12014-01-22 11:14:19 +02001007 ___cfg80211_scan_done(rdev, false);
Johannes Berga6173022014-01-22 11:14:18 +02001008 }
Johannes Berg5fe231e2013-05-08 21:45:15 +02001009
1010 if (WARN_ON(rdev->sched_scan_req &&
1011 rdev->sched_scan_req->dev == wdev->netdev)) {
1012 __cfg80211_stop_sched_scan(rdev, false);
1013 }
1014
1015 rdev->opencount--;
1016 wake_up(&rdev->dev_wait);
Johannes Berg04a773a2009-04-19 21:24:32 +02001017 break;
1018 case NETDEV_UP:
Johannes Berg4290cb42012-07-12 22:19:48 +02001019 cfg80211_update_iface_num(rdev, wdev->iftype, 1);
Johannes Berg667503dd2009-07-07 03:56:11 +02001020 wdev_lock(wdev);
Johannes Bergf2129352009-07-01 21:26:56 +02001021 switch (wdev->iftype) {
Johannes Berg29cbe682010-12-03 09:20:44 +01001022#ifdef CONFIG_CFG80211_WEXT
Johannes Bergf2129352009-07-01 21:26:56 +02001023 case NL80211_IFTYPE_ADHOC:
Johannes Bergfffd0932009-07-08 14:22:54 +02001024 cfg80211_ibss_wext_join(rdev, wdev);
Johannes Berg04a773a2009-04-19 21:24:32 +02001025 break;
Johannes Bergf2129352009-07-01 21:26:56 +02001026 case NL80211_IFTYPE_STATION:
Johannes Bergfffd0932009-07-08 14:22:54 +02001027 cfg80211_mgd_wext_connect(rdev, wdev);
Johannes Berg04a773a2009-04-19 21:24:32 +02001028 break;
Johannes Berg29cbe682010-12-03 09:20:44 +01001029#endif
Javier Cardonac80d5452010-12-16 17:37:49 -08001030#ifdef CONFIG_MAC80211_MESH
Johannes Berg29cbe682010-12-03 09:20:44 +01001031 case NL80211_IFTYPE_MESH_POINT:
Javier Cardonac80d5452010-12-16 17:37:49 -08001032 {
1033 /* backward compat code... */
1034 struct mesh_setup setup;
1035 memcpy(&setup, &default_mesh_setup,
1036 sizeof(setup));
1037 /* back compat only needed for mesh_id */
1038 setup.mesh_id = wdev->ssid;
1039 setup.mesh_id_len = wdev->mesh_id_up_len;
1040 if (wdev->mesh_id_up_len)
1041 __cfg80211_join_mesh(rdev, dev,
1042 &setup,
1043 &default_mesh_config);
1044 break;
1045 }
1046#endif
Johannes Bergf2129352009-07-01 21:26:56 +02001047 default:
1048 break;
1049 }
Johannes Berg667503dd2009-07-07 03:56:11 +02001050 wdev_unlock(wdev);
Johannes Bergad002392009-08-18 19:51:57 +02001051 rdev->opencount++;
Juuso Oikarinenbf6a0572011-01-31 15:52:58 +02001052
1053 /*
1054 * Configure power management to the driver here so that its
1055 * correctly set also after interface type changes etc.
1056 */
Eliad Peller5966f2d2011-07-19 12:57:13 +03001057 if ((wdev->iftype == NL80211_IFTYPE_STATION ||
1058 wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
Juuso Oikarinenbf6a0572011-01-31 15:52:58 +02001059 rdev->ops->set_power_mgmt)
Hila Gonene35e4d22012-06-27 17:19:42 +03001060 if (rdev_set_power_mgmt(rdev, dev, wdev->ps,
1061 wdev->ps_timeout)) {
Juuso Oikarinenbf6a0572011-01-31 15:52:58 +02001062 /* assume this means it's off */
1063 wdev->ps = false;
1064 }
Johannes Berg2a783c12009-07-01 21:26:45 +02001065 break;
Johannes Berg704232c2007-04-23 12:20:05 -07001066 case NETDEV_UNREGISTER:
Johannes Berg0ff6ce72009-08-17 12:25:37 +02001067 /*
Johannes Berge40cbdac2009-07-30 14:04:01 +02001068 * It is possible to get NETDEV_UNREGISTER
1069 * multiple times. To detect that, check
1070 * that the interface is still on the list
1071 * of registered interfaces, and only then
1072 * remove and clean it up.
1073 */
Johannes Berg2a783c12009-07-01 21:26:45 +02001074 if (!list_empty(&wdev->list)) {
Johannes Berg704232c2007-04-23 12:20:05 -07001075 sysfs_remove_link(&dev->dev.kobj, "phy80211");
Johannes Berg5f2aa252010-01-17 15:49:02 +01001076 list_del_rcu(&wdev->list);
Johannes Bergf5ea9122009-08-07 16:17:38 +02001077 rdev->devlist_generation++;
Johannes Berg2e161f72010-08-12 15:38:38 +02001078 cfg80211_mlme_purge_registrations(wdev);
Johannes Berg3d23e342009-09-29 23:27:28 +02001079#ifdef CONFIG_CFG80211_WEXT
Johannes Berg538c9eb2014-09-10 13:39:56 +03001080 kzfree(wdev->wext.keys);
Johannes Berge40cbdac2009-07-30 14:04:01 +02001081#endif
Johannes Berg704232c2007-04-23 12:20:05 -07001082 }
Johannes Berg5f2aa252010-01-17 15:49:02 +01001083 /*
1084 * synchronise (so that we won't find this netdev
1085 * from other code any more) and then clear the list
1086 * head so that the above code can safely check for
1087 * !list_empty() to avoid double-cleanup.
1088 */
1089 synchronize_rcu();
1090 INIT_LIST_HEAD(&wdev->list);
Daniel Drake1f6fc432012-08-02 18:41:48 +01001091 /*
1092 * Ensure that all events have been processed and
1093 * freed.
1094 */
1095 cfg80211_process_wdev_events(wdev);
Ben Greearf9bef3d2013-06-19 14:06:26 -07001096
1097 if (WARN_ON(wdev->current_bss)) {
1098 cfg80211_unhold_bss(wdev->current_bss);
1099 cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
1100 wdev->current_bss = NULL;
1101 }
Johannes Berg704232c2007-04-23 12:20:05 -07001102 break;
Johannes Berg1f87f7d2009-06-02 13:01:41 +02001103 case NETDEV_PRE_UP:
Johannes Berg0b20633d2009-07-07 03:56:13 +02001104 if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
1105 return notifier_from_errno(-EOPNOTSUPP);
Luciano Coelhob6a55012014-02-27 11:07:21 +02001106 if (rfkill_blocked(rdev->rfkill))
1107 return notifier_from_errno(-ERFKILL);
Johannes Berg1f87f7d2009-06-02 13:01:41 +02001108 break;
Zhao, Gang6784c7d2014-04-21 12:53:04 +08001109 default:
1110 return NOTIFY_DONE;
Johannes Berg704232c2007-04-23 12:20:05 -07001111 }
1112
Zhao, Gang6784c7d2014-04-21 12:53:04 +08001113 return NOTIFY_OK;
Johannes Berg704232c2007-04-23 12:20:05 -07001114}
1115
1116static struct notifier_block cfg80211_netdev_notifier = {
1117 .notifier_call = cfg80211_netdev_notifier_call,
1118};
1119
Johannes Berg463d0182009-07-14 00:33:35 +02001120static void __net_exit cfg80211_pernet_exit(struct net *net)
1121{
1122 struct cfg80211_registered_device *rdev;
1123
1124 rtnl_lock();
Johannes Berg463d0182009-07-14 00:33:35 +02001125 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1126 if (net_eq(wiphy_net(&rdev->wiphy), net))
1127 WARN_ON(cfg80211_switch_netns(rdev, &init_net));
1128 }
Johannes Berg463d0182009-07-14 00:33:35 +02001129 rtnl_unlock();
1130}
1131
1132static struct pernet_operations cfg80211_pernet_ops = {
1133 .exit = cfg80211_pernet_exit,
1134};
1135
1136static int __init cfg80211_init(void)
Johannes Berg704232c2007-04-23 12:20:05 -07001137{
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07001138 int err;
1139
Johannes Berg463d0182009-07-14 00:33:35 +02001140 err = register_pernet_device(&cfg80211_pernet_ops);
1141 if (err)
1142 goto out_fail_pernet;
1143
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07001144 err = wiphy_sysfs_init();
Johannes Berg704232c2007-04-23 12:20:05 -07001145 if (err)
1146 goto out_fail_sysfs;
1147
1148 err = register_netdevice_notifier(&cfg80211_netdev_notifier);
1149 if (err)
1150 goto out_fail_notifier;
1151
Johannes Berg55682962007-09-20 13:09:35 -04001152 err = nl80211_init();
1153 if (err)
1154 goto out_fail_nl80211;
1155
Johannes Berg704232c2007-04-23 12:20:05 -07001156 ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
1157
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07001158 err = regulatory_init();
1159 if (err)
1160 goto out_fail_reg;
1161
Alban Browaeyse60d7442009-11-25 15:13:00 +01001162 cfg80211_wq = create_singlethread_workqueue("cfg80211");
Wei Yongjunf00f1882013-03-20 20:22:54 +08001163 if (!cfg80211_wq) {
1164 err = -ENOMEM;
Alban Browaeyse60d7442009-11-25 15:13:00 +01001165 goto out_fail_wq;
Wei Yongjunf00f1882013-03-20 20:22:54 +08001166 }
Alban Browaeyse60d7442009-11-25 15:13:00 +01001167
Johannes Berg704232c2007-04-23 12:20:05 -07001168 return 0;
1169
Alban Browaeyse60d7442009-11-25 15:13:00 +01001170out_fail_wq:
1171 regulatory_exit();
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07001172out_fail_reg:
1173 debugfs_remove(ieee80211_debugfs_dir);
Johannes Berg55682962007-09-20 13:09:35 -04001174out_fail_nl80211:
1175 unregister_netdevice_notifier(&cfg80211_netdev_notifier);
Johannes Berg704232c2007-04-23 12:20:05 -07001176out_fail_notifier:
1177 wiphy_sysfs_exit();
1178out_fail_sysfs:
Johannes Berg463d0182009-07-14 00:33:35 +02001179 unregister_pernet_device(&cfg80211_pernet_ops);
1180out_fail_pernet:
Johannes Berg704232c2007-04-23 12:20:05 -07001181 return err;
1182}
Johannes Berg3a462462007-09-10 13:44:45 +02001183subsys_initcall(cfg80211_init);
Johannes Berg704232c2007-04-23 12:20:05 -07001184
Uwe Kleine-Königf884e382010-06-18 09:38:54 +02001185static void __exit cfg80211_exit(void)
Johannes Berg704232c2007-04-23 12:20:05 -07001186{
1187 debugfs_remove(ieee80211_debugfs_dir);
Johannes Berg55682962007-09-20 13:09:35 -04001188 nl80211_exit();
Johannes Berg704232c2007-04-23 12:20:05 -07001189 unregister_netdevice_notifier(&cfg80211_netdev_notifier);
1190 wiphy_sysfs_exit();
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07001191 regulatory_exit();
Johannes Berg463d0182009-07-14 00:33:35 +02001192 unregister_pernet_device(&cfg80211_pernet_ops);
Alban Browaeyse60d7442009-11-25 15:13:00 +01001193 destroy_workqueue(cfg80211_wq);
Johannes Berg704232c2007-04-23 12:20:05 -07001194}
1195module_exit(cfg80211_exit);