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 | ||
704232c2 JB |
91 | /* must be last because of the way we do wiphy_priv(), |
92 | * and it should at least be aligned to NETDEV_ALIGN */ | |
1c06ef98 | 93 | struct wiphy wiphy __aligned(NETDEV_ALIGN); |
704232c2 JB |
94 | }; |
95 | ||
96 | static inline | |
97 | struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) | |
98 | { | |
99 | BUG_ON(!wiphy); | |
100 | return container_of(wiphy, struct cfg80211_registered_device, wiphy); | |
101 | } | |
102 | ||
ff1b6e69 JB |
103 | static inline void |
104 | cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev) | |
105 | { | |
106 | int i; | |
107 | ||
108 | if (!rdev->wowlan) | |
109 | return; | |
110 | for (i = 0; i < rdev->wowlan->n_patterns; i++) | |
111 | kfree(rdev->wowlan->patterns[i].mask); | |
112 | kfree(rdev->wowlan->patterns); | |
2a0e047e JB |
113 | if (rdev->wowlan->tcp && rdev->wowlan->tcp->sock) |
114 | sock_release(rdev->wowlan->tcp->sock); | |
115 | kfree(rdev->wowlan->tcp); | |
ff1b6e69 JB |
116 | kfree(rdev->wowlan); |
117 | } | |
e60d7443 AB |
118 | |
119 | extern struct workqueue_struct *cfg80211_wq; | |
a1794390 | 120 | extern struct mutex cfg80211_mutex; |
79c97e97 | 121 | extern struct list_head cfg80211_rdev_list; |
f5ea9120 | 122 | extern int cfg80211_rdev_list_generation; |
704232c2 | 123 | |
46a5ebaf JB |
124 | static inline void assert_cfg80211_lock(void) |
125 | { | |
126 | lockdep_assert_held(&cfg80211_mutex); | |
127 | } | |
761cf7ec | 128 | |
2a519311 JB |
129 | struct cfg80211_internal_bss { |
130 | struct list_head list; | |
776b3580 | 131 | struct list_head hidden_list; |
2a519311 JB |
132 | struct rb_node rbn; |
133 | unsigned long ts; | |
776b3580 | 134 | unsigned long refcount; |
19957bb3 | 135 | atomic_t hold; |
a08c1c1a | 136 | |
2a519311 JB |
137 | /* must be last because of priv member */ |
138 | struct cfg80211_bss pub; | |
139 | }; | |
140 | ||
19957bb3 JB |
141 | static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub) |
142 | { | |
143 | return container_of(pub, struct cfg80211_internal_bss, pub); | |
144 | } | |
145 | ||
146 | static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss) | |
147 | { | |
148 | atomic_inc(&bss->hold); | |
149 | } | |
150 | ||
151 | static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss) | |
152 | { | |
153 | int r = atomic_dec_return(&bss->hold); | |
154 | WARN_ON(r < 0); | |
155 | } | |
156 | ||
157 | ||
79c97e97 | 158 | struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx); |
806a9e39 LR |
159 | int get_wiphy_idx(struct wiphy *wiphy); |
160 | ||
79c97e97 | 161 | /* requires cfg80211_rdev_mutex to be held! */ |
806a9e39 LR |
162 | struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx); |
163 | ||
55682965 JB |
164 | /* identical to cfg80211_get_dev_from_info but only operate on ifindex */ |
165 | extern struct cfg80211_registered_device * | |
463d0183 JB |
166 | cfg80211_get_dev_from_ifindex(struct net *net, int ifindex); |
167 | ||
168 | int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, | |
169 | struct net *net); | |
55682965 | 170 | |
79c97e97 | 171 | static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev) |
667503dd | 172 | { |
79c97e97 | 173 | mutex_lock(&rdev->mtx); |
667503dd JB |
174 | } |
175 | ||
79c97e97 | 176 | static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev) |
4d0c8aea | 177 | { |
79c97e97 JB |
178 | BUG_ON(IS_ERR(rdev) || !rdev); |
179 | mutex_unlock(&rdev->mtx); | |
4d0c8aea | 180 | } |
55682965 | 181 | |
667503dd JB |
182 | static inline void wdev_lock(struct wireless_dev *wdev) |
183 | __acquires(wdev) | |
184 | { | |
185 | mutex_lock(&wdev->mtx); | |
186 | __acquire(wdev->mtx); | |
187 | } | |
188 | ||
189 | static inline void wdev_unlock(struct wireless_dev *wdev) | |
190 | __releases(wdev) | |
191 | { | |
192 | __release(wdev->mtx); | |
193 | mutex_unlock(&wdev->mtx); | |
194 | } | |
195 | ||
46a5ebaf JB |
196 | #define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx) |
197 | #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx) | |
667503dd | 198 | |
dbbae26a MK |
199 | static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev) |
200 | { | |
c5a7e582 | 201 | ASSERT_RTNL(); |
dbbae26a MK |
202 | |
203 | return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces && | |
204 | rdev->num_running_ifaces > 0; | |
205 | } | |
206 | ||
667503dd JB |
207 | enum cfg80211_event_type { |
208 | EVENT_CONNECT_RESULT, | |
209 | EVENT_ROAMED, | |
210 | EVENT_DISCONNECTED, | |
211 | EVENT_IBSS_JOINED, | |
212 | }; | |
213 | ||
214 | struct cfg80211_event { | |
215 | struct list_head list; | |
216 | enum cfg80211_event_type type; | |
217 | ||
218 | union { | |
219 | struct { | |
220 | u8 bssid[ETH_ALEN]; | |
221 | const u8 *req_ie; | |
222 | const u8 *resp_ie; | |
223 | size_t req_ie_len; | |
224 | size_t resp_ie_len; | |
225 | u16 status; | |
226 | } cr; | |
227 | struct { | |
667503dd JB |
228 | const u8 *req_ie; |
229 | const u8 *resp_ie; | |
230 | size_t req_ie_len; | |
231 | size_t resp_ie_len; | |
adbde344 | 232 | struct cfg80211_bss *bss; |
667503dd JB |
233 | } rm; |
234 | struct { | |
235 | const u8 *ie; | |
236 | size_t ie_len; | |
237 | u16 reason; | |
238 | } dc; | |
239 | struct { | |
240 | u8 bssid[ETH_ALEN]; | |
241 | } ij; | |
242 | }; | |
243 | }; | |
244 | ||
fffd0934 JB |
245 | struct cfg80211_cached_keys { |
246 | struct key_params params[6]; | |
247 | u8 data[6][WLAN_MAX_KEY_LEN]; | |
248 | int def, defmgmt; | |
249 | }; | |
250 | ||
26ab9a0c MK |
251 | enum cfg80211_chan_mode { |
252 | CHAN_MODE_UNDEFINED, | |
253 | CHAN_MODE_SHARED, | |
254 | CHAN_MODE_EXCLUSIVE, | |
255 | }; | |
256 | ||
37c73b5f BG |
257 | struct cfg80211_beacon_registration { |
258 | struct list_head list; | |
259 | u32 nlportid; | |
260 | }; | |
667503dd | 261 | |
704232c2 | 262 | /* free object */ |
79c97e97 | 263 | extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev); |
704232c2 | 264 | |
79c97e97 | 265 | extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, |
55682965 JB |
266 | char *newname); |
267 | ||
8318d78a | 268 | void ieee80211_set_bitrate_flags(struct wiphy *wiphy); |
8318d78a | 269 | |
2a519311 | 270 | void cfg80211_bss_expire(struct cfg80211_registered_device *dev); |
cb3a8eec DW |
271 | void cfg80211_bss_age(struct cfg80211_registered_device *dev, |
272 | unsigned long age_secs); | |
2a519311 | 273 | |
04a773ad | 274 | /* IBSS */ |
667503dd JB |
275 | int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, |
276 | struct net_device *dev, | |
fffd0934 JB |
277 | struct cfg80211_ibss_params *params, |
278 | struct cfg80211_cached_keys *connkeys); | |
04a773ad JB |
279 | int cfg80211_join_ibss(struct cfg80211_registered_device *rdev, |
280 | struct net_device *dev, | |
fffd0934 JB |
281 | struct cfg80211_ibss_params *params, |
282 | struct cfg80211_cached_keys *connkeys); | |
9d308429 | 283 | void cfg80211_clear_ibss(struct net_device *dev, bool nowext); |
98d3a7ca JB |
284 | int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, |
285 | struct net_device *dev, bool nowext); | |
04a773ad | 286 | int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev, |
9d308429 | 287 | struct net_device *dev, bool nowext); |
667503dd | 288 | void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid); |
fffd0934 JB |
289 | int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev, |
290 | struct wireless_dev *wdev); | |
04a773ad | 291 | |
29cbe68c JB |
292 | /* mesh */ |
293 | extern const struct mesh_config default_mesh_config; | |
c80d545d | 294 | extern const struct mesh_setup default_mesh_setup; |
29cbe68c JB |
295 | int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, |
296 | struct net_device *dev, | |
cc1d2806 | 297 | struct mesh_setup *setup, |
29cbe68c JB |
298 | const struct mesh_config *conf); |
299 | int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, | |
300 | struct net_device *dev, | |
cc1d2806 | 301 | struct mesh_setup *setup, |
29cbe68c JB |
302 | const struct mesh_config *conf); |
303 | int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, | |
304 | struct net_device *dev); | |
683b6d3b JB |
305 | int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev, |
306 | struct wireless_dev *wdev, | |
307 | struct cfg80211_chan_def *chandef); | |
29cbe68c | 308 | |
60771780 MK |
309 | /* AP */ |
310 | int cfg80211_stop_ap(struct cfg80211_registered_device *rdev, | |
311 | struct net_device *dev); | |
312 | ||
19957bb3 | 313 | /* MLME */ |
667503dd JB |
314 | int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
315 | struct net_device *dev, | |
316 | struct ieee80211_channel *chan, | |
317 | enum nl80211_auth_type auth_type, | |
318 | const u8 *bssid, | |
319 | const u8 *ssid, int ssid_len, | |
fffd0934 | 320 | const u8 *ie, int ie_len, |
e39e5b5e JM |
321 | const u8 *key, int key_len, int key_idx, |
322 | const u8 *sae_data, int sae_data_len); | |
19957bb3 JB |
323 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
324 | struct net_device *dev, struct ieee80211_channel *chan, | |
325 | enum nl80211_auth_type auth_type, const u8 *bssid, | |
326 | const u8 *ssid, int ssid_len, | |
fffd0934 | 327 | const u8 *ie, int ie_len, |
e39e5b5e JM |
328 | const u8 *key, int key_len, int key_idx, |
329 | const u8 *sae_data, int sae_data_len); | |
667503dd JB |
330 | int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
331 | struct net_device *dev, | |
332 | struct ieee80211_channel *chan, | |
333 | const u8 *bssid, const u8 *prev_bssid, | |
334 | const u8 *ssid, int ssid_len, | |
335 | const u8 *ie, int ie_len, bool use_mfp, | |
7e7c8926 BG |
336 | struct cfg80211_crypto_settings *crypt, |
337 | u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, | |
338 | struct ieee80211_ht_cap *ht_capa_mask); | |
19957bb3 JB |
339 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
340 | struct net_device *dev, struct ieee80211_channel *chan, | |
3e5d7649 JB |
341 | const u8 *bssid, const u8 *prev_bssid, |
342 | const u8 *ssid, int ssid_len, | |
19957bb3 | 343 | const u8 *ie, int ie_len, bool use_mfp, |
7e7c8926 BG |
344 | struct cfg80211_crypto_settings *crypt, |
345 | u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, | |
346 | struct ieee80211_ht_cap *ht_capa_mask); | |
667503dd JB |
347 | int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
348 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
349 | const u8 *ie, int ie_len, u16 reason, |
350 | bool local_state_change); | |
19957bb3 JB |
351 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
352 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
353 | const u8 *ie, int ie_len, u16 reason, |
354 | bool local_state_change); | |
19957bb3 JB |
355 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, |
356 | struct net_device *dev, const u8 *bssid, | |
d5cdfacb JM |
357 | const u8 *ie, int ie_len, u16 reason, |
358 | bool local_state_change); | |
19957bb3 JB |
359 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, |
360 | struct net_device *dev); | |
667503dd JB |
361 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
362 | const u8 *req_ie, size_t req_ie_len, | |
363 | const u8 *resp_ie, size_t resp_ie_len, | |
df7fc0f9 JB |
364 | u16 status, bool wextev, |
365 | struct cfg80211_bss *bss); | |
2e161f78 JB |
366 | int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, |
367 | u16 frame_type, const u8 *match_data, | |
368 | int match_len); | |
369 | void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid); | |
370 | void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev); | |
371 | int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, | |
71bbc994 | 372 | struct wireless_dev *wdev, |
f7ca38df | 373 | struct ieee80211_channel *chan, bool offchan, |
42d97a59 JB |
374 | unsigned int wait, const u8 *buf, size_t len, |
375 | bool no_cck, bool dont_wait_for_ack, u64 *cookie); | |
7e7c8926 BG |
376 | void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa, |
377 | const struct ieee80211_ht_cap *ht_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 | ||
d4e50c59 MK |
506 | #define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10 |
507 | ||
f7969969 JB |
508 | #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS |
509 | #define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond) | |
510 | #else | |
511 | /* | |
512 | * Trick to enable using it as a condition, | |
513 | * and also not give a warning when it's | |
514 | * not used that way. | |
515 | */ | |
516 | #define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; }) | |
517 | #endif | |
518 | ||
704232c2 | 519 | #endif /* __NET_WIRELESS_CORE_H */ |