Commit | Line | Data |
---|---|---|
704232c2 JB |
1 | /* |
2 | * Wireless configuration interface internals. | |
3 | * | |
5f2aa25e | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
704232c2 JB |
5 | */ |
6 | #ifndef __NET_WIRELESS_CORE_H | |
7 | #define __NET_WIRELESS_CORE_H | |
8 | #include <linux/mutex.h> | |
9 | #include <linux/list.h> | |
10 | #include <linux/netdevice.h> | |
2a519311 | 11 | #include <linux/rbtree.h> |
1ac61302 | 12 | #include <linux/debugfs.h> |
1f87f7d3 JB |
13 | #include <linux/rfkill.h> |
14 | #include <linux/workqueue.h> | |
c5a7e582 | 15 | #include <linux/rtnetlink.h> |
704232c2 | 16 | #include <net/genetlink.h> |
704232c2 | 17 | #include <net/cfg80211.h> |
3f2355cb | 18 | #include "reg.h" |
704232c2 | 19 | |
f4173766 JB |
20 | |
21 | #define WIPHY_IDX_INVALID -1 | |
22 | ||
704232c2 | 23 | struct cfg80211_registered_device { |
3dcf670b | 24 | const struct cfg80211_ops *ops; |
704232c2 JB |
25 | struct list_head list; |
26 | /* we hold this mutex during any call so that | |
27 | * we cannot do multiple calls at once, and also | |
28 | * to avoid the deregister call to proceed while | |
29 | * any call is in progress */ | |
30 | struct mutex mtx; | |
31 | ||
1f87f7d3 JB |
32 | /* rfkill support */ |
33 | struct rfkill_ops rfkill_ops; | |
34 | struct rfkill *rfkill; | |
35 | struct work_struct rfkill_sync; | |
36 | ||
3f2355cb LR |
37 | /* ISO / IEC 3166 alpha2 for which this device is receiving |
38 | * country IEs on, this can help disregard country IEs from APs | |
39 | * on the same alpha2 quickly. The alpha2 may differ from | |
40 | * cfg80211_regdomain's alpha2 when an intersection has occurred. | |
41 | * If the AP is reconfigured this can also be used to tell us if | |
42 | * the country on the country IE changed. */ | |
43 | char country_ie_alpha2[2]; | |
44 | ||
45 | /* If a Country IE has been received this tells us the environment | |
46 | * which its telling us its in. This defaults to ENVIRON_ANY */ | |
47 | enum environment_cap env; | |
48 | ||
704232c2 | 49 | /* wiphy index, internal only */ |
b5850a7a | 50 | int wiphy_idx; |
704232c2 | 51 | |
89a54e48 | 52 | /* associated wireless interfaces */ |
704232c2 | 53 | struct mutex devlist_mtx; |
5f2aa25e | 54 | /* protected by devlist_mtx or RCU */ |
89a54e48 JB |
55 | struct list_head wdev_list; |
56 | int devlist_generation, wdev_id; | |
ad002395 JB |
57 | int opencount; /* also protected by devlist_mtx */ |
58 | wait_queue_head_t dev_wait; | |
704232c2 | 59 | |
37c73b5f BG |
60 | struct list_head beacon_registrations; |
61 | spinlock_t beacon_registrations_lock; | |
5e760230 | 62 | |
c5a7e582 | 63 | /* protected by RTNL only */ |
dbbae26a MK |
64 | int num_running_ifaces; |
65 | int num_running_monitor_ifaces; | |
66 | ||
2a519311 JB |
67 | /* BSSes/scanning */ |
68 | spinlock_t bss_lock; | |
69 | struct list_head bss_list; | |
70 | struct rb_root bss_tree; | |
71 | u32 bss_generation; | |
72 | struct cfg80211_scan_request *scan_req; /* protected by RTNL */ | |
807f8a8c | 73 | struct cfg80211_sched_scan_request *sched_scan_req; |
cb3a8eec | 74 | unsigned long suspend_at; |
667503dd | 75 | struct work_struct scan_done_wk; |
807f8a8c | 76 | struct work_struct sched_scan_results_wk; |
2a519311 | 77 | |
c10841ca LC |
78 | struct mutex sched_scan_mtx; |
79 | ||
aff89a9b JB |
80 | #ifdef CONFIG_NL80211_TESTMODE |
81 | struct genl_info *testmode_info; | |
82 | #endif | |
83 | ||
6829c878 | 84 | struct work_struct conn_work; |
667503dd | 85 | struct work_struct event_work; |
6829c878 | 86 | |
ff1b6e69 JB |
87 | struct cfg80211_wowlan *wowlan; |
88 | ||
04f39047 SW |
89 | struct delayed_work dfs_update_channels_wk; |
90 | ||
5de17984 AS |
91 | /* netlink port which started critical protocol (0 means not started) */ |
92 | u32 crit_proto_nlportid; | |
93 | ||
704232c2 JB |
94 | /* must be last because of the way we do wiphy_priv(), |
95 | * and it should at least be aligned to NETDEV_ALIGN */ | |
1c06ef98 | 96 | struct wiphy wiphy __aligned(NETDEV_ALIGN); |
704232c2 JB |
97 | }; |
98 | ||
99 | static inline | |
100 | struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) | |
101 | { | |
102 | BUG_ON(!wiphy); | |
103 | return container_of(wiphy, struct cfg80211_registered_device, wiphy); | |
104 | } | |
105 | ||
ff1b6e69 JB |
106 | static inline void |
107 | cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev) | |
108 | { | |
109 | int i; | |
110 | ||
111 | if (!rdev->wowlan) | |
112 | return; | |
113 | for (i = 0; i < rdev->wowlan->n_patterns; i++) | |
114 | kfree(rdev->wowlan->patterns[i].mask); | |
115 | kfree(rdev->wowlan->patterns); | |
2a0e047e JB |
116 | if (rdev->wowlan->tcp && rdev->wowlan->tcp->sock) |
117 | sock_release(rdev->wowlan->tcp->sock); | |
118 | kfree(rdev->wowlan->tcp); | |
ff1b6e69 JB |
119 | kfree(rdev->wowlan); |
120 | } | |
e60d7443 AB |
121 | |
122 | extern struct workqueue_struct *cfg80211_wq; | |
a1794390 | 123 | extern struct mutex cfg80211_mutex; |
79c97e97 | 124 | extern struct list_head cfg80211_rdev_list; |
f5ea9120 | 125 | extern int cfg80211_rdev_list_generation; |
704232c2 | 126 | |
46a5ebaf JB |
127 | static inline void assert_cfg80211_lock(void) |
128 | { | |
129 | lockdep_assert_held(&cfg80211_mutex); | |
130 | } | |
761cf7ec | 131 | |
2a519311 JB |
132 | struct cfg80211_internal_bss { |
133 | struct list_head list; | |
776b3580 | 134 | struct list_head hidden_list; |
2a519311 JB |
135 | struct rb_node rbn; |
136 | unsigned long ts; | |
776b3580 | 137 | unsigned long refcount; |
19957bb3 | 138 | atomic_t hold; |
a08c1c1a | 139 | |
2a519311 JB |
140 | /* must be last because of priv member */ |
141 | struct cfg80211_bss pub; | |
142 | }; | |
143 | ||
19957bb3 JB |
144 | static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub) |
145 | { | |
146 | return container_of(pub, struct cfg80211_internal_bss, pub); | |
147 | } | |
148 | ||
149 | static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss) | |
150 | { | |
151 | atomic_inc(&bss->hold); | |
152 | } | |
153 | ||
154 | static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss) | |
155 | { | |
156 | int r = atomic_dec_return(&bss->hold); | |
157 | WARN_ON(r < 0); | |
158 | } | |
159 | ||
160 | ||
79c97e97 | 161 | struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx); |
806a9e39 LR |
162 | int get_wiphy_idx(struct wiphy *wiphy); |
163 | ||
79c97e97 | 164 | /* requires cfg80211_rdev_mutex to be held! */ |
806a9e39 LR |
165 | struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx); |
166 | ||
55682965 JB |
167 | /* identical to cfg80211_get_dev_from_info but only operate on ifindex */ |
168 | extern struct cfg80211_registered_device * | |
463d0183 JB |
169 | cfg80211_get_dev_from_ifindex(struct net *net, int ifindex); |
170 | ||
171 | int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, | |
172 | struct net *net); | |
55682965 | 173 | |
79c97e97 | 174 | static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev) |
667503dd | 175 | { |
79c97e97 | 176 | mutex_lock(&rdev->mtx); |
667503dd JB |
177 | } |
178 | ||
79c97e97 | 179 | static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev) |
4d0c8aea | 180 | { |
79c97e97 JB |
181 | BUG_ON(IS_ERR(rdev) || !rdev); |
182 | mutex_unlock(&rdev->mtx); | |
4d0c8aea | 183 | } |
55682965 | 184 | |
667503dd JB |
185 | static inline void wdev_lock(struct wireless_dev *wdev) |
186 | __acquires(wdev) | |
187 | { | |
188 | mutex_lock(&wdev->mtx); | |
189 | __acquire(wdev->mtx); | |
190 | } | |
191 | ||
192 | static inline void wdev_unlock(struct wireless_dev *wdev) | |
193 | __releases(wdev) | |
194 | { | |
195 | __release(wdev->mtx); | |
196 | mutex_unlock(&wdev->mtx); | |
197 | } | |
198 | ||
46a5ebaf JB |
199 | #define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx) |
200 | #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx) | |
667503dd | 201 | |
dbbae26a MK |
202 | static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev) |
203 | { | |
c5a7e582 | 204 | ASSERT_RTNL(); |
dbbae26a MK |
205 | |
206 | return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces && | |
207 | rdev->num_running_ifaces > 0; | |
208 | } | |
209 | ||
667503dd JB |
210 | enum cfg80211_event_type { |
211 | EVENT_CONNECT_RESULT, | |
212 | EVENT_ROAMED, | |
213 | EVENT_DISCONNECTED, | |
214 | EVENT_IBSS_JOINED, | |
215 | }; | |
216 | ||
217 | struct cfg80211_event { | |
218 | struct list_head list; | |
219 | enum cfg80211_event_type type; | |
220 | ||
221 | union { | |
222 | struct { | |
223 | u8 bssid[ETH_ALEN]; | |
224 | const u8 *req_ie; | |
225 | const u8 *resp_ie; | |
226 | size_t req_ie_len; | |
227 | size_t resp_ie_len; | |
228 | u16 status; | |
229 | } cr; | |
230 | struct { | |
667503dd JB |
231 | const u8 *req_ie; |
232 | const u8 *resp_ie; | |
233 | size_t req_ie_len; | |
234 | size_t resp_ie_len; | |
adbde344 | 235 | struct cfg80211_bss *bss; |
667503dd JB |
236 | } rm; |
237 | struct { | |
238 | const u8 *ie; | |
239 | size_t ie_len; | |
240 | u16 reason; | |
241 | } dc; | |
242 | struct { | |
243 | u8 bssid[ETH_ALEN]; | |
244 | } ij; | |
245 | }; | |
246 | }; | |
247 | ||
fffd0934 JB |
248 | struct cfg80211_cached_keys { |
249 | struct key_params params[6]; | |
250 | u8 data[6][WLAN_MAX_KEY_LEN]; | |
251 | int def, defmgmt; | |
252 | }; | |
253 | ||
26ab9a0c MK |
254 | enum cfg80211_chan_mode { |
255 | CHAN_MODE_UNDEFINED, | |
256 | CHAN_MODE_SHARED, | |
257 | CHAN_MODE_EXCLUSIVE, | |
258 | }; | |
259 | ||
37c73b5f BG |
260 | struct cfg80211_beacon_registration { |
261 | struct list_head list; | |
262 | u32 nlportid; | |
263 | }; | |
667503dd | 264 | |
704232c2 | 265 | /* free object */ |
79c97e97 | 266 | extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev); |
704232c2 | 267 | |
79c97e97 | 268 | extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, |
55682965 JB |
269 | char *newname); |
270 | ||
8318d78a | 271 | void ieee80211_set_bitrate_flags(struct wiphy *wiphy); |
8318d78a | 272 | |
2a519311 | 273 | void cfg80211_bss_expire(struct cfg80211_registered_device *dev); |
cb3a8eec DW |
274 | void cfg80211_bss_age(struct cfg80211_registered_device *dev, |
275 | unsigned long age_secs); | |
2a519311 | 276 | |
04a773ad | 277 | /* IBSS */ |
667503dd JB |
278 | int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, |
279 | struct net_device *dev, | |
fffd0934 JB |
280 | struct cfg80211_ibss_params *params, |
281 | struct cfg80211_cached_keys *connkeys); | |
04a773ad JB |
282 | int cfg80211_join_ibss(struct cfg80211_registered_device *rdev, |
283 | struct net_device *dev, | |
fffd0934 JB |
284 | struct cfg80211_ibss_params *params, |
285 | struct cfg80211_cached_keys *connkeys); | |
9d308429 | 286 | void cfg80211_clear_ibss(struct net_device *dev, bool nowext); |
98d3a7ca JB |
287 | int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, |
288 | struct net_device *dev, bool nowext); | |
04a773ad | 289 | int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, |
9d308429 | 290 | struct net_device *dev, bool nowext); |
667503dd | 291 | void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid); |
fffd0934 JB |
292 | int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev, |
293 | struct wireless_dev *wdev); | |
04a773ad | 294 | |
29cbe68c JB |
295 | /* mesh */ |
296 | extern const struct mesh_config default_mesh_config; | |
c80d545d | 297 | extern const struct mesh_setup default_mesh_setup; |
29cbe68c JB |
298 | int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, |
299 | struct net_device *dev, | |
cc1d2806 | 300 | struct mesh_setup *setup, |
29cbe68c JB |
301 | const struct mesh_config *conf); |
302 | int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, | |
303 | struct net_device *dev, | |
cc1d2806 | 304 | struct mesh_setup *setup, |
29cbe68c JB |
305 | const struct mesh_config *conf); |
306 | int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, | |
307 | struct net_device *dev); | |
683b6d3b JB |
308 | int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev, |
309 | struct wireless_dev *wdev, | |
310 | struct cfg80211_chan_def *chandef); | |
29cbe68c | 311 | |
60771780 MK |
312 | /* AP */ |
313 | int cfg80211_stop_ap(struct cfg80211_registered_device *rdev, | |
314 | struct net_device *dev); | |
315 | ||
19957bb3 | 316 | /* MLME */ |
667503dd JB |
317 | int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
318 | struct net_device *dev, | |
319 | struct ieee80211_channel *chan, | |
320 | enum nl80211_auth_type auth_type, | |
321 | const u8 *bssid, | |
322 | const u8 *ssid, int ssid_len, | |
fffd0934 | 323 | const u8 *ie, int ie_len, |
e39e5b5e JM |
324 | const u8 *key, int key_len, int key_idx, |
325 | const u8 *sae_data, int sae_data_len); | |
19957bb3 JB |
326 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
327 | struct net_device *dev, struct ieee80211_channel *chan, | |
328 | enum nl80211_auth_type auth_type, const u8 *bssid, | |
329 | const u8 *ssid, int ssid_len, | |
fffd0934 | 330 | const u8 *ie, int ie_len, |
e39e5b5e JM |
331 | const u8 *key, int key_len, int key_idx, |
332 | const u8 *sae_data, int sae_data_len); | |
667503dd JB |
333 | int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
334 | struct net_device *dev, | |
335 | struct ieee80211_channel *chan, | |
f62fab73 | 336 | const u8 *bssid, |
667503dd | 337 | const u8 *ssid, int ssid_len, |
f62fab73 | 338 | struct cfg80211_assoc_request *req); |
19957bb3 | 339 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
f62fab73 JB |
340 | struct net_device *dev, |
341 | struct ieee80211_channel *chan, | |
342 | const u8 *bssid, | |
3e5d7649 | 343 | const u8 *ssid, int ssid_len, |
f62fab73 | 344 | struct cfg80211_assoc_request *req); |
667503dd JB |
345 | int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
346 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
347 | const u8 *ie, int ie_len, u16 reason, |
348 | bool local_state_change); | |
19957bb3 JB |
349 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
350 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
351 | const u8 *ie, int ie_len, u16 reason, |
352 | bool local_state_change); | |
19957bb3 JB |
353 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, |
354 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
355 | const u8 *ie, int ie_len, u16 reason, |
356 | bool local_state_change); | |
19957bb3 JB |
357 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, |
358 | struct net_device *dev); | |
667503dd JB |
359 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
360 | const u8 *req_ie, size_t req_ie_len, | |
361 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
362 | u16 status, bool wextev, |
363 | struct cfg80211_bss *bss); | |
2e161f78 JB |
364 | int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, |
365 | u16 frame_type, const u8 *match_data, | |
366 | int match_len); | |
367 | void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid); | |
368 | void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev); | |
369 | int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, | |
71bbc994 | 370 | struct wireless_dev *wdev, |
f7ca38df | 371 | struct ieee80211_channel *chan, bool offchan, |
42d97a59 JB |
372 | unsigned int wait, const u8 *buf, size_t len, |
373 | bool no_cck, bool dont_wait_for_ack, u64 *cookie); | |
7e7c8926 BG |
374 | void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa, |
375 | const struct ieee80211_ht_cap *ht_capa_mask); | |
ee2aca34 JB |
376 | void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa, |
377 | const struct ieee80211_vht_cap *vht_capa_mask); | |
19957bb3 | 378 | |
b23aa676 | 379 | /* SME */ |
667503dd JB |
380 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
381 | struct net_device *dev, | |
fffd0934 | 382 | struct cfg80211_connect_params *connect, |
f401a6f7 JB |
383 | struct cfg80211_cached_keys *connkeys, |
384 | const u8 *prev_bssid); | |
b23aa676 SO |
385 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
386 | struct net_device *dev, | |
fffd0934 JB |
387 | struct cfg80211_connect_params *connect, |
388 | struct cfg80211_cached_keys *connkeys); | |
667503dd JB |
389 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
390 | struct net_device *dev, u16 reason, | |
391 | bool wextev); | |
b23aa676 | 392 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
f2129354 JB |
393 | struct net_device *dev, u16 reason, |
394 | bool wextev); | |
ed9d0102 | 395 | void __cfg80211_roamed(struct wireless_dev *wdev, |
adbde344 | 396 | struct cfg80211_bss *bss, |
667503dd JB |
397 | const u8 *req_ie, size_t req_ie_len, |
398 | const u8 *resp_ie, size_t resp_ie_len); | |
fffd0934 JB |
399 | int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, |
400 | struct wireless_dev *wdev); | |
b23aa676 | 401 | |
6829c878 | 402 | void cfg80211_conn_work(struct work_struct *work); |
7d930bc3 | 403 | void cfg80211_sme_failed_assoc(struct wireless_dev *wdev); |
f401a6f7 | 404 | bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev); |
6829c878 | 405 | |
08645126 | 406 | /* internal helpers */ |
38ba3c57 | 407 | bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher); |
fffd0934 JB |
408 | int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, |
409 | struct key_params *params, int key_idx, | |
e31b8213 | 410 | bool pairwise, const u8 *mac_addr); |
667503dd | 411 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
6829c878 JB |
412 | size_t ie_len, u16 reason, bool from_ap); |
413 | void cfg80211_sme_scan_done(struct net_device *dev); | |
414 | void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len); | |
95de817b JB |
415 | void cfg80211_sme_disassoc(struct net_device *dev, |
416 | struct cfg80211_internal_bss *bss); | |
667503dd | 417 | void __cfg80211_scan_done(struct work_struct *wk); |
01a0ac41 | 418 | void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak); |
807f8a8c LC |
419 | void __cfg80211_sched_scan_results(struct work_struct *wk); |
420 | int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, | |
421 | bool driver_initiated); | |
fffd0934 | 422 | void cfg80211_upload_connect_keys(struct wireless_dev *wdev); |
3d54d255 JB |
423 | int cfg80211_change_iface(struct cfg80211_registered_device *rdev, |
424 | struct net_device *dev, enum nl80211_iftype ntype, | |
425 | u32 *flags, struct vif_params *params); | |
426 | void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev); | |
1f6fc43e | 427 | void cfg80211_process_wdev_events(struct wireless_dev *wdev); |
08645126 | 428 | |
d4e50c59 MK |
429 | int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev, |
430 | struct wireless_dev *wdev, | |
431 | enum nl80211_iftype iftype, | |
432 | struct ieee80211_channel *chan, | |
11c4a075 SW |
433 | enum cfg80211_chan_mode chanmode, |
434 | u8 radar_detect); | |
d4e50c59 | 435 | |
04f39047 SW |
436 | /** |
437 | * cfg80211_chandef_dfs_required - checks if radar detection is required | |
438 | * @wiphy: the wiphy to validate against | |
439 | * @chandef: the channel definition to check | |
440 | * Return: 1 if radar detection is required, 0 if it is not, < 0 on error | |
441 | */ | |
442 | int cfg80211_chandef_dfs_required(struct wiphy *wiphy, | |
443 | const struct cfg80211_chan_def *c); | |
444 | ||
445 | void cfg80211_set_dfs_state(struct wiphy *wiphy, | |
446 | const struct cfg80211_chan_def *chandef, | |
447 | enum nl80211_dfs_state dfs_state); | |
448 | ||
449 | void cfg80211_dfs_channels_update_work(struct work_struct *work); | |
450 | ||
451 | ||
d4e50c59 MK |
452 | static inline int |
453 | cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, | |
454 | struct wireless_dev *wdev, | |
455 | enum nl80211_iftype iftype) | |
456 | { | |
457 | return cfg80211_can_use_iftype_chan(rdev, wdev, iftype, NULL, | |
11c4a075 | 458 | CHAN_MODE_UNDEFINED, 0); |
d4e50c59 | 459 | } |
7527a782 JB |
460 | |
461 | static inline int | |
462 | cfg80211_can_add_interface(struct cfg80211_registered_device *rdev, | |
463 | enum nl80211_iftype iftype) | |
464 | { | |
465 | return cfg80211_can_change_interface(rdev, NULL, iftype); | |
466 | } | |
467 | ||
d4e50c59 MK |
468 | static inline int |
469 | cfg80211_can_use_chan(struct cfg80211_registered_device *rdev, | |
470 | struct wireless_dev *wdev, | |
471 | struct ieee80211_channel *chan, | |
472 | enum cfg80211_chan_mode chanmode) | |
473 | { | |
474 | return cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, | |
11c4a075 | 475 | chan, chanmode, 0); |
d4e50c59 MK |
476 | } |
477 | ||
04f39047 SW |
478 | static inline unsigned int elapsed_jiffies_msecs(unsigned long start) |
479 | { | |
480 | unsigned long end = jiffies; | |
481 | ||
482 | if (end >= start) | |
483 | return jiffies_to_msecs(end - start); | |
484 | ||
485 | return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1); | |
486 | } | |
487 | ||
26ab9a0c | 488 | void |
8e95ea49 | 489 | cfg80211_get_chan_state(struct wireless_dev *wdev, |
26ab9a0c MK |
490 | struct ieee80211_channel **chan, |
491 | enum cfg80211_chan_mode *chanmode); | |
492 | ||
e8c9bd5b | 493 | int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev, |
683b6d3b | 494 | struct cfg80211_chan_def *chandef); |
59bbb6f7 | 495 | |
34850ab2 JB |
496 | int ieee80211_get_ratemask(struct ieee80211_supported_band *sband, |
497 | const u8 *rates, unsigned int n_rates, | |
498 | u32 *mask); | |
499 | ||
56d1893d JB |
500 | int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev, |
501 | u32 beacon_int); | |
502 | ||
dbbae26a MK |
503 | void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev, |
504 | enum nl80211_iftype iftype, int num); | |
505 | ||
81256969 SG |
506 | void cfg80211_leave(struct cfg80211_registered_device *rdev, |
507 | struct wireless_dev *wdev); | |
508 | ||
f9f47529 JB |
509 | void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev, |
510 | struct wireless_dev *wdev); | |
511 | ||
d4e50c59 MK |
512 | #define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10 |
513 | ||
f7969969 JB |
514 | #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS |
515 | #define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond) | |
516 | #else | |
517 | /* | |
518 | * Trick to enable using it as a condition, | |
519 | * and also not give a warning when it's | |
520 | * not used that way. | |
521 | */ | |
522 | #define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; }) | |
523 | #endif | |
524 | ||
704232c2 | 525 | #endif /* __NET_WIRELESS_CORE_H */ |