2 * Wireless configuration interface internals.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
6 #ifndef __NET_WIRELESS_CORE_H
7 #define __NET_WIRELESS_CORE_H
8 #include <linux/list.h>
9 #include <linux/netdevice.h>
10 #include <linux/rbtree.h>
11 #include <linux/debugfs.h>
12 #include <linux/rfkill.h>
13 #include <linux/workqueue.h>
14 #include <linux/rtnetlink.h>
15 #include <net/genetlink.h>
16 #include <net/cfg80211.h>
20 #define WIPHY_IDX_INVALID -1
22 struct cfg80211_registered_device
{
23 const struct cfg80211_ops
*ops
;
24 struct list_head list
;
27 struct rfkill_ops rfkill_ops
;
28 struct rfkill
*rfkill
;
29 struct work_struct rfkill_sync
;
31 /* ISO / IEC 3166 alpha2 for which this device is receiving
32 * country IEs on, this can help disregard country IEs from APs
33 * on the same alpha2 quickly. The alpha2 may differ from
34 * cfg80211_regdomain's alpha2 when an intersection has occurred.
35 * If the AP is reconfigured this can also be used to tell us if
36 * the country on the country IE changed. */
37 char country_ie_alpha2
[2];
40 * the driver requests the regulatory core to set this regulatory
41 * domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
42 * devices using the regulatory_set_wiphy_regd() API
44 const struct ieee80211_regdomain
*requested_regd
;
46 /* If a Country IE has been received this tells us the environment
47 * which its telling us its in. This defaults to ENVIRON_ANY */
48 enum environment_cap env
;
50 /* wiphy index, internal only */
53 /* associated wireless interfaces, protected by rtnl or RCU */
54 struct list_head wdev_list
;
55 int devlist_generation
, wdev_id
;
57 wait_queue_head_t dev_wait
;
59 struct list_head beacon_registrations
;
60 spinlock_t beacon_registrations_lock
;
62 struct list_head mlme_unreg
;
63 spinlock_t mlme_unreg_lock
;
64 struct work_struct mlme_unreg_wk
;
66 /* protected by RTNL only */
67 int num_running_ifaces
;
68 int num_running_monitor_ifaces
;
72 struct list_head bss_list
;
73 struct rb_root bss_tree
;
75 struct cfg80211_scan_request
*scan_req
; /* protected by RTNL */
76 struct sk_buff
*scan_msg
;
77 struct cfg80211_sched_scan_request __rcu
*sched_scan_req
;
78 unsigned long suspend_at
;
79 struct work_struct scan_done_wk
;
80 struct work_struct sched_scan_results_wk
;
82 struct genl_info
*cur_cmd_info
;
84 struct work_struct conn_work
;
85 struct work_struct event_work
;
87 struct delayed_work dfs_update_channels_wk
;
89 /* netlink port which started critical protocol (0 means not started) */
90 u32 crit_proto_nlportid
;
92 struct cfg80211_coalesce
*coalesce
;
94 spinlock_t destroy_list_lock
;
95 struct list_head destroy_list
;
96 struct work_struct destroy_work
;
98 struct work_struct sched_scan_stop_wk
;
100 /* must be last because of the way we do wiphy_priv(),
101 * and it should at least be aligned to NETDEV_ALIGN */
102 struct wiphy wiphy
__aligned(NETDEV_ALIGN
);
106 struct cfg80211_registered_device
*wiphy_to_rdev(struct wiphy
*wiphy
)
109 return container_of(wiphy
, struct cfg80211_registered_device
, wiphy
);
113 cfg80211_rdev_free_wowlan(struct cfg80211_registered_device
*rdev
)
118 if (!rdev
->wiphy
.wowlan_config
)
120 for (i
= 0; i
< rdev
->wiphy
.wowlan_config
->n_patterns
; i
++)
121 kfree(rdev
->wiphy
.wowlan_config
->patterns
[i
].mask
);
122 kfree(rdev
->wiphy
.wowlan_config
->patterns
);
123 if (rdev
->wiphy
.wowlan_config
->tcp
&&
124 rdev
->wiphy
.wowlan_config
->tcp
->sock
)
125 sock_release(rdev
->wiphy
.wowlan_config
->tcp
->sock
);
126 kfree(rdev
->wiphy
.wowlan_config
->tcp
);
127 kfree(rdev
->wiphy
.wowlan_config
->nd_config
);
128 kfree(rdev
->wiphy
.wowlan_config
);
132 extern struct workqueue_struct
*cfg80211_wq
;
133 extern struct list_head cfg80211_rdev_list
;
134 extern int cfg80211_rdev_list_generation
;
136 struct cfg80211_internal_bss
{
137 struct list_head list
;
138 struct list_head hidden_list
;
142 unsigned long refcount
;
145 /* must be last because of priv member */
146 struct cfg80211_bss pub
;
149 static inline struct cfg80211_internal_bss
*bss_from_pub(struct cfg80211_bss
*pub
)
151 return container_of(pub
, struct cfg80211_internal_bss
, pub
);
154 static inline void cfg80211_hold_bss(struct cfg80211_internal_bss
*bss
)
156 atomic_inc(&bss
->hold
);
159 static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss
*bss
)
161 int r
= atomic_dec_return(&bss
->hold
);
166 struct cfg80211_registered_device
*cfg80211_rdev_by_wiphy_idx(int wiphy_idx
);
167 int get_wiphy_idx(struct wiphy
*wiphy
);
169 struct wiphy
*wiphy_idx_to_wiphy(int wiphy_idx
);
171 int cfg80211_switch_netns(struct cfg80211_registered_device
*rdev
,
174 static inline void wdev_lock(struct wireless_dev
*wdev
)
177 mutex_lock(&wdev
->mtx
);
178 __acquire(wdev
->mtx
);
181 static inline void wdev_unlock(struct wireless_dev
*wdev
)
184 __release(wdev
->mtx
);
185 mutex_unlock(&wdev
->mtx
);
188 #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
190 static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device
*rdev
)
194 return rdev
->num_running_ifaces
== rdev
->num_running_monitor_ifaces
&&
195 rdev
->num_running_ifaces
> 0;
198 enum cfg80211_event_type
{
199 EVENT_CONNECT_RESULT
,
206 struct cfg80211_event
{
207 struct list_head list
;
208 enum cfg80211_event_type type
;
217 struct cfg80211_bss
*bss
;
225 struct cfg80211_bss
*bss
;
231 bool locally_generated
;
235 struct ieee80211_channel
*channel
;
240 struct cfg80211_cached_keys
{
241 struct key_params params
[6];
242 u8 data
[6][WLAN_MAX_KEY_LEN
];
246 enum cfg80211_chan_mode
{
252 struct cfg80211_beacon_registration
{
253 struct list_head list
;
257 struct cfg80211_iface_destroy
{
258 struct list_head list
;
262 void cfg80211_destroy_ifaces(struct cfg80211_registered_device
*rdev
);
265 void cfg80211_dev_free(struct cfg80211_registered_device
*rdev
);
267 int cfg80211_dev_rename(struct cfg80211_registered_device
*rdev
,
270 void ieee80211_set_bitrate_flags(struct wiphy
*wiphy
);
272 void cfg80211_bss_expire(struct cfg80211_registered_device
*rdev
);
273 void cfg80211_bss_age(struct cfg80211_registered_device
*rdev
,
274 unsigned long age_secs
);
277 int cfg80211_join_ibss(struct cfg80211_registered_device
*rdev
,
278 struct net_device
*dev
,
279 struct cfg80211_ibss_params
*params
,
280 struct cfg80211_cached_keys
*connkeys
);
281 void cfg80211_clear_ibss(struct net_device
*dev
, bool nowext
);
282 int __cfg80211_leave_ibss(struct cfg80211_registered_device
*rdev
,
283 struct net_device
*dev
, bool nowext
);
284 int cfg80211_leave_ibss(struct cfg80211_registered_device
*rdev
,
285 struct net_device
*dev
, bool nowext
);
286 void __cfg80211_ibss_joined(struct net_device
*dev
, const u8
*bssid
,
287 struct ieee80211_channel
*channel
);
288 int cfg80211_ibss_wext_join(struct cfg80211_registered_device
*rdev
,
289 struct wireless_dev
*wdev
);
292 extern const struct mesh_config default_mesh_config
;
293 extern const struct mesh_setup default_mesh_setup
;
294 int __cfg80211_join_mesh(struct cfg80211_registered_device
*rdev
,
295 struct net_device
*dev
,
296 struct mesh_setup
*setup
,
297 const struct mesh_config
*conf
);
298 int cfg80211_join_mesh(struct cfg80211_registered_device
*rdev
,
299 struct net_device
*dev
,
300 struct mesh_setup
*setup
,
301 const struct mesh_config
*conf
);
302 int __cfg80211_leave_mesh(struct cfg80211_registered_device
*rdev
,
303 struct net_device
*dev
);
304 int cfg80211_leave_mesh(struct cfg80211_registered_device
*rdev
,
305 struct net_device
*dev
);
306 int cfg80211_set_mesh_channel(struct cfg80211_registered_device
*rdev
,
307 struct wireless_dev
*wdev
,
308 struct cfg80211_chan_def
*chandef
);
311 int __cfg80211_join_ocb(struct cfg80211_registered_device
*rdev
,
312 struct net_device
*dev
,
313 struct ocb_setup
*setup
);
314 int cfg80211_join_ocb(struct cfg80211_registered_device
*rdev
,
315 struct net_device
*dev
,
316 struct ocb_setup
*setup
);
317 int __cfg80211_leave_ocb(struct cfg80211_registered_device
*rdev
,
318 struct net_device
*dev
);
319 int cfg80211_leave_ocb(struct cfg80211_registered_device
*rdev
,
320 struct net_device
*dev
);
323 int __cfg80211_stop_ap(struct cfg80211_registered_device
*rdev
,
324 struct net_device
*dev
, bool notify
);
325 int cfg80211_stop_ap(struct cfg80211_registered_device
*rdev
,
326 struct net_device
*dev
, bool notify
);
329 int cfg80211_mlme_auth(struct cfg80211_registered_device
*rdev
,
330 struct net_device
*dev
,
331 struct ieee80211_channel
*chan
,
332 enum nl80211_auth_type auth_type
,
334 const u8
*ssid
, int ssid_len
,
335 const u8
*ie
, int ie_len
,
336 const u8
*key
, int key_len
, int key_idx
,
337 const u8
*sae_data
, int sae_data_len
);
338 int cfg80211_mlme_assoc(struct cfg80211_registered_device
*rdev
,
339 struct net_device
*dev
,
340 struct ieee80211_channel
*chan
,
342 const u8
*ssid
, int ssid_len
,
343 struct cfg80211_assoc_request
*req
);
344 int cfg80211_mlme_deauth(struct cfg80211_registered_device
*rdev
,
345 struct net_device
*dev
, const u8
*bssid
,
346 const u8
*ie
, int ie_len
, u16 reason
,
347 bool local_state_change
);
348 int cfg80211_mlme_disassoc(struct cfg80211_registered_device
*rdev
,
349 struct net_device
*dev
, const u8
*bssid
,
350 const u8
*ie
, int ie_len
, u16 reason
,
351 bool local_state_change
);
352 void cfg80211_mlme_down(struct cfg80211_registered_device
*rdev
,
353 struct net_device
*dev
);
354 int cfg80211_mlme_register_mgmt(struct wireless_dev
*wdev
, u32 snd_pid
,
355 u16 frame_type
, const u8
*match_data
,
357 void cfg80211_mlme_unreg_wk(struct work_struct
*wk
);
358 void cfg80211_mlme_unregister_socket(struct wireless_dev
*wdev
, u32 nlpid
);
359 void cfg80211_mlme_purge_registrations(struct wireless_dev
*wdev
);
360 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device
*rdev
,
361 struct wireless_dev
*wdev
,
362 struct cfg80211_mgmt_tx_params
*params
,
364 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap
*ht_capa
,
365 const struct ieee80211_ht_cap
*ht_capa_mask
);
366 void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap
*vht_capa
,
367 const struct ieee80211_vht_cap
*vht_capa_mask
);
370 int cfg80211_connect(struct cfg80211_registered_device
*rdev
,
371 struct net_device
*dev
,
372 struct cfg80211_connect_params
*connect
,
373 struct cfg80211_cached_keys
*connkeys
,
374 const u8
*prev_bssid
);
375 void __cfg80211_connect_result(struct net_device
*dev
, const u8
*bssid
,
376 const u8
*req_ie
, size_t req_ie_len
,
377 const u8
*resp_ie
, size_t resp_ie_len
,
378 u16 status
, bool wextev
,
379 struct cfg80211_bss
*bss
);
380 void __cfg80211_disconnected(struct net_device
*dev
, const u8
*ie
,
381 size_t ie_len
, u16 reason
, bool from_ap
);
382 int cfg80211_disconnect(struct cfg80211_registered_device
*rdev
,
383 struct net_device
*dev
, u16 reason
,
385 void __cfg80211_roamed(struct wireless_dev
*wdev
,
386 struct cfg80211_bss
*bss
,
387 const u8
*req_ie
, size_t req_ie_len
,
388 const u8
*resp_ie
, size_t resp_ie_len
);
389 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device
*rdev
,
390 struct wireless_dev
*wdev
);
392 /* SME implementation */
393 void cfg80211_conn_work(struct work_struct
*work
);
394 void cfg80211_sme_scan_done(struct net_device
*dev
);
395 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev
*wdev
, u16 status
);
396 void cfg80211_sme_rx_auth(struct wireless_dev
*wdev
, const u8
*buf
, size_t len
);
397 void cfg80211_sme_disassoc(struct wireless_dev
*wdev
);
398 void cfg80211_sme_deauth(struct wireless_dev
*wdev
);
399 void cfg80211_sme_auth_timeout(struct wireless_dev
*wdev
);
400 void cfg80211_sme_assoc_timeout(struct wireless_dev
*wdev
);
402 /* internal helpers */
403 bool cfg80211_supported_cipher_suite(struct wiphy
*wiphy
, u32 cipher
);
404 int cfg80211_validate_key_settings(struct cfg80211_registered_device
*rdev
,
405 struct key_params
*params
, int key_idx
,
406 bool pairwise
, const u8
*mac_addr
);
407 void __cfg80211_scan_done(struct work_struct
*wk
);
408 void ___cfg80211_scan_done(struct cfg80211_registered_device
*rdev
,
410 void __cfg80211_sched_scan_results(struct work_struct
*wk
);
411 int __cfg80211_stop_sched_scan(struct cfg80211_registered_device
*rdev
,
412 bool driver_initiated
);
413 void cfg80211_upload_connect_keys(struct wireless_dev
*wdev
);
414 int cfg80211_change_iface(struct cfg80211_registered_device
*rdev
,
415 struct net_device
*dev
, enum nl80211_iftype ntype
,
416 u32
*flags
, struct vif_params
*params
);
417 void cfg80211_process_rdev_events(struct cfg80211_registered_device
*rdev
);
418 void cfg80211_process_wdev_events(struct wireless_dev
*wdev
);
421 * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
422 * @wiphy: the wiphy to validate against
423 * @chandef: the channel definition to check
425 * Checks if chandef is usable and we can/need start CAC on such channel.
427 * Return: Return true if all channels available and at least
428 * one channel require CAC (NL80211_DFS_USABLE)
430 bool cfg80211_chandef_dfs_usable(struct wiphy
*wiphy
,
431 const struct cfg80211_chan_def
*chandef
);
433 void cfg80211_set_dfs_state(struct wiphy
*wiphy
,
434 const struct cfg80211_chan_def
*chandef
,
435 enum nl80211_dfs_state dfs_state
);
437 void cfg80211_dfs_channels_update_work(struct work_struct
*work
);
440 cfg80211_chandef_dfs_cac_time(struct wiphy
*wiphy
,
441 const struct cfg80211_chan_def
*chandef
);
443 static inline unsigned int elapsed_jiffies_msecs(unsigned long start
)
445 unsigned long end
= jiffies
;
448 return jiffies_to_msecs(end
- start
);
450 return jiffies_to_msecs(end
+ (ULONG_MAX
- start
) + 1);
454 cfg80211_get_chan_state(struct wireless_dev
*wdev
,
455 struct ieee80211_channel
**chan
,
456 enum cfg80211_chan_mode
*chanmode
,
459 int cfg80211_set_monitor_channel(struct cfg80211_registered_device
*rdev
,
460 struct cfg80211_chan_def
*chandef
);
462 int ieee80211_get_ratemask(struct ieee80211_supported_band
*sband
,
463 const u8
*rates
, unsigned int n_rates
,
466 int cfg80211_validate_beacon_int(struct cfg80211_registered_device
*rdev
,
469 void cfg80211_update_iface_num(struct cfg80211_registered_device
*rdev
,
470 enum nl80211_iftype iftype
, int num
);
472 void __cfg80211_leave(struct cfg80211_registered_device
*rdev
,
473 struct wireless_dev
*wdev
);
474 void cfg80211_leave(struct cfg80211_registered_device
*rdev
,
475 struct wireless_dev
*wdev
);
477 void cfg80211_stop_p2p_device(struct cfg80211_registered_device
*rdev
,
478 struct wireless_dev
*wdev
);
480 #define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
482 #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
483 #define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
486 * Trick to enable using it as a condition,
487 * and also not give a warning when it's
490 #define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
493 #endif /* __NET_WIRELESS_CORE_H */