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0008 #ifndef __NET_WIRELESS_CORE_H
0009 #define __NET_WIRELESS_CORE_H
0010 #include <linux/list.h>
0011 #include <linux/netdevice.h>
0012 #include <linux/rbtree.h>
0013 #include <linux/debugfs.h>
0014 #include <linux/rfkill.h>
0015 #include <linux/workqueue.h>
0016 #include <linux/rtnetlink.h>
0017 #include <net/genetlink.h>
0018 #include <net/cfg80211.h>
0019 #include "reg.h"
0020
0021
0022 #define WIPHY_IDX_INVALID -1
0023
0024 struct cfg80211_registered_device {
0025 const struct cfg80211_ops *ops;
0026 struct list_head list;
0027
0028
0029 struct rfkill_ops rfkill_ops;
0030 struct work_struct rfkill_block;
0031
0032
0033
0034
0035
0036
0037
0038 char country_ie_alpha2[2];
0039
0040
0041
0042
0043
0044
0045 const struct ieee80211_regdomain *requested_regd;
0046
0047
0048
0049 enum environment_cap env;
0050
0051
0052 int wiphy_idx;
0053
0054
0055 int devlist_generation, wdev_id;
0056 int opencount;
0057 wait_queue_head_t dev_wait;
0058
0059 struct list_head beacon_registrations;
0060 spinlock_t beacon_registrations_lock;
0061
0062
0063 int num_running_ifaces;
0064 int num_running_monitor_ifaces;
0065 u64 cookie_counter;
0066
0067
0068 spinlock_t bss_lock;
0069 struct list_head bss_list;
0070 struct rb_root bss_tree;
0071 u32 bss_generation;
0072 u32 bss_entries;
0073 struct cfg80211_scan_request *scan_req;
0074 struct cfg80211_scan_request *int_scan_req;
0075 struct sk_buff *scan_msg;
0076 struct list_head sched_scan_req_list;
0077 time64_t suspend_at;
0078 struct work_struct scan_done_wk;
0079
0080 struct genl_info *cur_cmd_info;
0081
0082 struct work_struct conn_work;
0083 struct work_struct event_work;
0084
0085 struct delayed_work dfs_update_channels_wk;
0086
0087 struct wireless_dev *background_radar_wdev;
0088 struct cfg80211_chan_def background_radar_chandef;
0089 struct delayed_work background_cac_done_wk;
0090 struct work_struct background_cac_abort_wk;
0091
0092
0093 u32 crit_proto_nlportid;
0094
0095 struct cfg80211_coalesce *coalesce;
0096
0097 struct work_struct destroy_work;
0098 struct work_struct sched_scan_stop_wk;
0099 struct work_struct sched_scan_res_wk;
0100
0101 struct cfg80211_chan_def radar_chandef;
0102 struct work_struct propagate_radar_detect_wk;
0103
0104 struct cfg80211_chan_def cac_done_chandef;
0105 struct work_struct propagate_cac_done_wk;
0106
0107 struct work_struct mgmt_registrations_update_wk;
0108
0109 spinlock_t mgmt_registrations_lock;
0110
0111
0112
0113 struct wiphy wiphy __aligned(NETDEV_ALIGN);
0114 };
0115
0116 static inline
0117 struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
0118 {
0119 BUG_ON(!wiphy);
0120 return container_of(wiphy, struct cfg80211_registered_device, wiphy);
0121 }
0122
0123 static inline void
0124 cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
0125 {
0126 #ifdef CONFIG_PM
0127 int i;
0128
0129 if (!rdev->wiphy.wowlan_config)
0130 return;
0131 for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
0132 kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
0133 kfree(rdev->wiphy.wowlan_config->patterns);
0134 if (rdev->wiphy.wowlan_config->tcp &&
0135 rdev->wiphy.wowlan_config->tcp->sock)
0136 sock_release(rdev->wiphy.wowlan_config->tcp->sock);
0137 kfree(rdev->wiphy.wowlan_config->tcp);
0138 kfree(rdev->wiphy.wowlan_config->nd_config);
0139 kfree(rdev->wiphy.wowlan_config);
0140 #endif
0141 }
0142
0143 static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
0144 {
0145 u64 r = ++rdev->cookie_counter;
0146
0147 if (WARN_ON(r == 0))
0148 r = ++rdev->cookie_counter;
0149
0150 return r;
0151 }
0152
0153 extern struct workqueue_struct *cfg80211_wq;
0154 extern struct list_head cfg80211_rdev_list;
0155 extern int cfg80211_rdev_list_generation;
0156
0157 struct cfg80211_internal_bss {
0158 struct list_head list;
0159 struct list_head hidden_list;
0160 struct rb_node rbn;
0161 u64 ts_boottime;
0162 unsigned long ts;
0163 unsigned long refcount;
0164 atomic_t hold;
0165
0166
0167
0168
0169
0170 u64 parent_tsf;
0171
0172
0173
0174
0175
0176 u8 parent_bssid[ETH_ALEN] __aligned(2);
0177
0178
0179 struct cfg80211_bss pub;
0180 };
0181
0182 static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
0183 {
0184 return container_of(pub, struct cfg80211_internal_bss, pub);
0185 }
0186
0187 static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
0188 {
0189 atomic_inc(&bss->hold);
0190 if (bss->pub.transmitted_bss) {
0191 bss = container_of(bss->pub.transmitted_bss,
0192 struct cfg80211_internal_bss, pub);
0193 atomic_inc(&bss->hold);
0194 }
0195 }
0196
0197 static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
0198 {
0199 int r = atomic_dec_return(&bss->hold);
0200 WARN_ON(r < 0);
0201 if (bss->pub.transmitted_bss) {
0202 bss = container_of(bss->pub.transmitted_bss,
0203 struct cfg80211_internal_bss, pub);
0204 r = atomic_dec_return(&bss->hold);
0205 WARN_ON(r < 0);
0206 }
0207 }
0208
0209
0210 struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
0211 int get_wiphy_idx(struct wiphy *wiphy);
0212
0213 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
0214
0215 int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
0216 struct net *net);
0217
0218 void cfg80211_init_wdev(struct wireless_dev *wdev);
0219 void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
0220 struct wireless_dev *wdev);
0221
0222 static inline void wdev_lock(struct wireless_dev *wdev)
0223 __acquires(wdev)
0224 {
0225 mutex_lock(&wdev->mtx);
0226 __acquire(wdev->mtx);
0227 }
0228
0229 static inline void wdev_unlock(struct wireless_dev *wdev)
0230 __releases(wdev)
0231 {
0232 __release(wdev->mtx);
0233 mutex_unlock(&wdev->mtx);
0234 }
0235
0236 #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
0237
0238 static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
0239 {
0240 lockdep_assert_held(&rdev->wiphy.mtx);
0241
0242 return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
0243 rdev->num_running_ifaces > 0;
0244 }
0245
0246 enum cfg80211_event_type {
0247 EVENT_CONNECT_RESULT,
0248 EVENT_ROAMED,
0249 EVENT_DISCONNECTED,
0250 EVENT_IBSS_JOINED,
0251 EVENT_STOPPED,
0252 EVENT_PORT_AUTHORIZED,
0253 };
0254
0255 struct cfg80211_event {
0256 struct list_head list;
0257 enum cfg80211_event_type type;
0258
0259 union {
0260 struct cfg80211_connect_resp_params cr;
0261 struct cfg80211_roam_info rm;
0262 struct {
0263 const u8 *ie;
0264 size_t ie_len;
0265 u16 reason;
0266 bool locally_generated;
0267 } dc;
0268 struct {
0269 u8 bssid[ETH_ALEN];
0270 struct ieee80211_channel *channel;
0271 } ij;
0272 struct {
0273 u8 bssid[ETH_ALEN];
0274 } pa;
0275 };
0276 };
0277
0278 struct cfg80211_cached_keys {
0279 struct key_params params[CFG80211_MAX_WEP_KEYS];
0280 u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
0281 int def;
0282 };
0283
0284 struct cfg80211_beacon_registration {
0285 struct list_head list;
0286 u32 nlportid;
0287 };
0288
0289 struct cfg80211_cqm_config {
0290 u32 rssi_hyst;
0291 s32 last_rssi_event_value;
0292 int n_rssi_thresholds;
0293 s32 rssi_thresholds[];
0294 };
0295
0296 void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
0297
0298
0299 void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
0300
0301 int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
0302 char *newname);
0303
0304 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
0305
0306 void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
0307 void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
0308 unsigned long age_secs);
0309 void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
0310 unsigned int link,
0311 struct ieee80211_channel *channel);
0312
0313
0314 int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
0315 struct net_device *dev,
0316 struct cfg80211_ibss_params *params,
0317 struct cfg80211_cached_keys *connkeys);
0318 void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
0319 int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
0320 struct net_device *dev, bool nowext);
0321 int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
0322 struct net_device *dev, bool nowext);
0323 void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
0324 struct ieee80211_channel *channel);
0325 int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
0326 struct wireless_dev *wdev);
0327
0328
0329 extern const struct mesh_config default_mesh_config;
0330 extern const struct mesh_setup default_mesh_setup;
0331 int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
0332 struct net_device *dev,
0333 struct mesh_setup *setup,
0334 const struct mesh_config *conf);
0335 int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
0336 struct net_device *dev);
0337 int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
0338 struct net_device *dev);
0339 int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
0340 struct wireless_dev *wdev,
0341 struct cfg80211_chan_def *chandef);
0342
0343
0344 int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
0345 struct net_device *dev,
0346 struct ocb_setup *setup);
0347 int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
0348 struct net_device *dev,
0349 struct ocb_setup *setup);
0350 int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
0351 struct net_device *dev);
0352 int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
0353 struct net_device *dev);
0354
0355
0356 int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
0357 struct net_device *dev, int link,
0358 bool notify);
0359 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
0360 struct net_device *dev, int link,
0361 bool notify);
0362
0363
0364 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
0365 struct net_device *dev,
0366 struct cfg80211_auth_request *req);
0367 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
0368 struct net_device *dev,
0369 struct cfg80211_assoc_request *req);
0370 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
0371 struct net_device *dev, const u8 *bssid,
0372 const u8 *ie, int ie_len, u16 reason,
0373 bool local_state_change);
0374 int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
0375 struct net_device *dev, const u8 *ap_addr,
0376 const u8 *ie, int ie_len, u16 reason,
0377 bool local_state_change);
0378 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
0379 struct net_device *dev);
0380 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
0381 u16 frame_type, const u8 *match_data,
0382 int match_len, bool multicast_rx,
0383 struct netlink_ext_ack *extack);
0384 void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk);
0385 void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
0386 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
0387 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
0388 struct wireless_dev *wdev,
0389 struct cfg80211_mgmt_tx_params *params,
0390 u64 *cookie);
0391 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
0392 const struct ieee80211_ht_cap *ht_capa_mask);
0393 void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
0394 const struct ieee80211_vht_cap *vht_capa_mask);
0395
0396
0397 int cfg80211_connect(struct cfg80211_registered_device *rdev,
0398 struct net_device *dev,
0399 struct cfg80211_connect_params *connect,
0400 struct cfg80211_cached_keys *connkeys,
0401 const u8 *prev_bssid);
0402 void __cfg80211_connect_result(struct net_device *dev,
0403 struct cfg80211_connect_resp_params *params,
0404 bool wextev);
0405 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
0406 size_t ie_len, u16 reason, bool from_ap);
0407 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
0408 struct net_device *dev, u16 reason,
0409 bool wextev);
0410 void __cfg80211_roamed(struct wireless_dev *wdev,
0411 struct cfg80211_roam_info *info);
0412 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid);
0413 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
0414 struct wireless_dev *wdev);
0415 void cfg80211_autodisconnect_wk(struct work_struct *work);
0416
0417
0418 void cfg80211_conn_work(struct work_struct *work);
0419 void cfg80211_sme_scan_done(struct net_device *dev);
0420 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
0421 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
0422 void cfg80211_sme_disassoc(struct wireless_dev *wdev);
0423 void cfg80211_sme_deauth(struct wireless_dev *wdev);
0424 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
0425 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
0426 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
0427
0428
0429 bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
0430 bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
0431 int key_idx, bool pairwise);
0432 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
0433 struct key_params *params, int key_idx,
0434 bool pairwise, const u8 *mac_addr);
0435 void __cfg80211_scan_done(struct work_struct *wk);
0436 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
0437 bool send_message);
0438 void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
0439 struct cfg80211_sched_scan_request *req);
0440 int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
0441 bool want_multi);
0442 void cfg80211_sched_scan_results_wk(struct work_struct *work);
0443 int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
0444 struct cfg80211_sched_scan_request *req,
0445 bool driver_initiated);
0446 int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
0447 u64 reqid, bool driver_initiated);
0448 void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
0449 int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
0450 struct net_device *dev, enum nl80211_iftype ntype,
0451 struct vif_params *params);
0452 void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
0453 void cfg80211_process_wdev_events(struct wireless_dev *wdev);
0454
0455 bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
0456 u32 center_freq_khz, u32 bw_khz);
0457
0458 int cfg80211_scan(struct cfg80211_registered_device *rdev);
0459
0460 extern struct work_struct cfg80211_disconnect_work;
0461
0462
0463
0464
0465
0466
0467
0468
0469
0470
0471
0472 bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
0473 const struct cfg80211_chan_def *chandef);
0474
0475 void cfg80211_set_dfs_state(struct wiphy *wiphy,
0476 const struct cfg80211_chan_def *chandef,
0477 enum nl80211_dfs_state dfs_state);
0478
0479 void cfg80211_dfs_channels_update_work(struct work_struct *work);
0480
0481 unsigned int
0482 cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
0483 const struct cfg80211_chan_def *chandef);
0484
0485 void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
0486
0487 int
0488 cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rdev,
0489 struct wireless_dev *wdev,
0490 struct cfg80211_chan_def *chandef);
0491
0492 void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev);
0493
0494 void cfg80211_background_cac_done_wk(struct work_struct *work);
0495
0496 void cfg80211_background_cac_abort_wk(struct work_struct *work);
0497
0498 bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
0499 struct ieee80211_channel *chan);
0500
0501 bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
0502
0503 bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
0504 struct ieee80211_channel *chan,
0505 bool primary_only);
0506 bool cfg80211_wdev_on_sub_chan(struct wireless_dev *wdev,
0507 struct ieee80211_channel *chan,
0508 bool primary_only);
0509
0510 static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
0511 {
0512 unsigned long end = jiffies;
0513
0514 if (end >= start)
0515 return jiffies_to_msecs(end - start);
0516
0517 return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
0518 }
0519
0520 int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
0521 struct cfg80211_chan_def *chandef);
0522
0523 int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
0524 const u8 *rates, unsigned int n_rates,
0525 u32 *mask);
0526
0527 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
0528 enum nl80211_iftype iftype, u32 beacon_int);
0529
0530 void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
0531 enum nl80211_iftype iftype, int num);
0532
0533 void __cfg80211_leave(struct cfg80211_registered_device *rdev,
0534 struct wireless_dev *wdev);
0535 void cfg80211_leave(struct cfg80211_registered_device *rdev,
0536 struct wireless_dev *wdev);
0537
0538 void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
0539 struct wireless_dev *wdev);
0540
0541 void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
0542 struct wireless_dev *wdev);
0543
0544 struct cfg80211_internal_bss *
0545 cfg80211_bss_update(struct cfg80211_registered_device *rdev,
0546 struct cfg80211_internal_bss *tmp,
0547 bool signal_valid, unsigned long ts);
0548 #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
0549 #define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
0550 #else
0551
0552
0553
0554
0555
0556 #define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
0557 #endif
0558
0559 void cfg80211_cqm_config_free(struct wireless_dev *wdev);
0560
0561 void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
0562 void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
0563 void cfg80211_pmsr_free_wk(struct work_struct *work);
0564
0565 void cfg80211_remove_link(struct wireless_dev *wdev, unsigned int link_id);
0566 void cfg80211_remove_links(struct wireless_dev *wdev);
0567 int cfg80211_remove_virtual_intf(struct cfg80211_registered_device *rdev,
0568 struct wireless_dev *wdev);
0569
0570 #endif