net/wireless/core.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Wireless configuration interface internals.
   4  *
   5  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   6  * Copyright (C) 2018-2020 Intel Corporation
   7  */
   8 #ifndef __NET_WIRELESS_CORE_H
   9 #define __NET_WIRELESS_CORE_H
  10 #include <linux/list.h>
  11 #include <linux/netdevice.h>
  12 #include <linux/rbtree.h>
  13 #include <linux/debugfs.h>
  14 #include <linux/rfkill.h>
  15 #include <linux/workqueue.h>
  16 #include <linux/rtnetlink.h>
  17 #include <net/genetlink.h>
  18 #include <net/cfg80211.h>
  19 #include "reg.h"
  20
  21
  22 #define WIPHY_IDX_INVALID       -1
  23
  24 struct cfg80211_registered_device {
  25         const struct cfg80211_ops *ops;
  26         struct list_head list;
  27
  28         /* rfkill support */
  29         struct rfkill_ops rfkill_ops;
  30         struct rfkill *rfkill;
  31         struct work_struct rfkill_block;
  32
  33         /* ISO / IEC 3166 alpha2 for which this device is receiving
  34          * country IEs on, this can help disregard country IEs from APs
  35          * on the same alpha2 quickly. The alpha2 may differ from
  36          * cfg80211_regdomain's alpha2 when an intersection has occurred.
  37          * If the AP is reconfigured this can also be used to tell us if
  38          * the country on the country IE changed. */
  39         char country_ie_alpha2[2];
  40
  41         /*
  42          * the driver requests the regulatory core to set this regulatory
  43          * domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
  44          * devices using the regulatory_set_wiphy_regd() API
  45          */
  46         const struct ieee80211_regdomain *requested_regd;
  47
  48         /* If a Country IE has been received this tells us the environment
  49          * which its telling us its in. This defaults to ENVIRON_ANY */
  50         enum environment_cap env;
  51
  52         /* wiphy index, internal only */
  53         int wiphy_idx;
  54
  55         /* protected by RTNL */
  56         int devlist_generation, wdev_id;
  57         int opencount;
  58         wait_queue_head_t dev_wait;
  59
  60         struct list_head beacon_registrations;
  61         spinlock_t beacon_registrations_lock;
  62
  63         /* protected by RTNL only */
  64         int num_running_ifaces;
  65         int num_running_monitor_ifaces;
  66         u64 cookie_counter;
  67
  68         /* BSSes/scanning */
  69         spinlock_t bss_lock;
  70         struct list_head bss_list;
  71         struct rb_root bss_tree;
  72         u32 bss_generation;
  73         u32 bss_entries;
  74         struct cfg80211_scan_request *scan_req; /* protected by RTNL */
  75         struct cfg80211_scan_request *int_scan_req;
  76         struct sk_buff *scan_msg;
  77         struct list_head sched_scan_req_list;
  78         time64_t suspend_at;
  79         struct work_struct scan_done_wk;
  80
  81         struct genl_info *cur_cmd_info;
  82
  83         struct work_struct conn_work;
  84         struct work_struct event_work;
  85
  86         struct delayed_work dfs_update_channels_wk;
  87
  88         /* netlink port which started critical protocol (0 means not started) */
  89         u32 crit_proto_nlportid;
  90
  91         struct cfg80211_coalesce *coalesce;
  92
  93         struct work_struct destroy_work;
  94         struct work_struct sched_scan_stop_wk;
  95         struct work_struct sched_scan_res_wk;
  96
  97         struct cfg80211_chan_def radar_chandef;
  98         struct work_struct propagate_radar_detect_wk;
  99
 100         struct cfg80211_chan_def cac_done_chandef;
 101         struct work_struct propagate_cac_done_wk;
 102
 103         struct work_struct mgmt_registrations_update_wk;
 104
 105         /* must be last because of the way we do wiphy_priv(),
 106          * and it should at least be aligned to NETDEV_ALIGN */
 107         struct wiphy wiphy __aligned(NETDEV_ALIGN);
 108 };
 109
 110 static inline
 111 struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
 112 {
 113         BUG_ON(!wiphy);
 114         return container_of(wiphy, struct cfg80211_registered_device, wiphy);
 115 }
 116
 117 static inline void
 118 cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
 119 {
 120 #ifdef CONFIG_PM
 121         int i;
 122
 123         if (!rdev->wiphy.wowlan_config)
 124                 return;
 125         for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
 126                 kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
 127         kfree(rdev->wiphy.wowlan_config->patterns);
 128         if (rdev->wiphy.wowlan_config->tcp &&
 129             rdev->wiphy.wowlan_config->tcp->sock)
 130                 sock_release(rdev->wiphy.wowlan_config->tcp->sock);
 131         kfree(rdev->wiphy.wowlan_config->tcp);
 132         kfree(rdev->wiphy.wowlan_config->nd_config);
 133         kfree(rdev->wiphy.wowlan_config);
 134 #endif
 135 }
 136
 137 static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
 138 {
 139         u64 r = ++rdev->cookie_counter;
 140
 141         if (WARN_ON(r == 0))
 142                 r = ++rdev->cookie_counter;
 143
 144         return r;
 145 }
 146
 147 extern struct workqueue_struct *cfg80211_wq;
 148 extern struct list_head cfg80211_rdev_list;
 149 extern int cfg80211_rdev_list_generation;
 150
 151 struct cfg80211_internal_bss {
 152         struct list_head list;
 153         struct list_head hidden_list;
 154         struct rb_node rbn;
 155         u64 ts_boottime;
 156         unsigned long ts;
 157         unsigned long refcount;
 158         atomic_t hold;
 159
 160         /* time at the start of the reception of the first octet of the
 161          * timestamp field of the last beacon/probe received for this BSS.
 162          * The time is the TSF of the BSS specified by %parent_bssid.
 163          */
 164         u64 parent_tsf;
 165
 166         /* the BSS according to which %parent_tsf is set. This is set to
 167          * the BSS that the interface that requested the scan was connected to
 168          * when the beacon/probe was received.
 169          */
 170         u8 parent_bssid[ETH_ALEN] __aligned(2);
 171
 172         /* must be last because of priv member */
 173         struct cfg80211_bss pub;
 174 };
 175
 176 static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
 177 {
 178         return container_of(pub, struct cfg80211_internal_bss, pub);
 179 }
 180
 181 static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
 182 {
 183         atomic_inc(&bss->hold);
 184         if (bss->pub.transmitted_bss) {
 185                 bss = container_of(bss->pub.transmitted_bss,
 186                                    struct cfg80211_internal_bss, pub);
 187                 atomic_inc(&bss->hold);
 188         }
 189 }
 190
 191 static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
 192 {
 193         int r = atomic_dec_return(&bss->hold);
 194         WARN_ON(r < 0);
 195         if (bss->pub.transmitted_bss) {
 196                 bss = container_of(bss->pub.transmitted_bss,
 197                                    struct cfg80211_internal_bss, pub);
 198                 r = atomic_dec_return(&bss->hold);
 199                 WARN_ON(r < 0);
 200         }
 201 }
 202
 203
 204 struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
 205 int get_wiphy_idx(struct wiphy *wiphy);
 206
 207 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
 208
 209 int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 210                           struct net *net);
 211
 212 void cfg80211_init_wdev(struct wireless_dev *wdev);
 213 void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
 214                             struct wireless_dev *wdev);
 215
 216 static inline void wdev_lock(struct wireless_dev *wdev)
 217         __acquires(wdev)
 218 {
 219         mutex_lock(&wdev->mtx);
 220         __acquire(wdev->mtx);
 221 }
 222
 223 static inline void wdev_unlock(struct wireless_dev *wdev)
 224         __releases(wdev)
 225 {
 226         __release(wdev->mtx);
 227         mutex_unlock(&wdev->mtx);
 228 }
 229
 230 #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
 231
 232 static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
 233 {
 234         ASSERT_RTNL();
 235
 236         return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
 237                rdev->num_running_ifaces > 0;
 238 }
 239
 240 enum cfg80211_event_type {
 241         EVENT_CONNECT_RESULT,
 242         EVENT_ROAMED,
 243         EVENT_DISCONNECTED,
 244         EVENT_IBSS_JOINED,
 245         EVENT_STOPPED,
 246         EVENT_PORT_AUTHORIZED,
 247 };
 248
 249 struct cfg80211_event {
 250         struct list_head list;
 251         enum cfg80211_event_type type;
 252
 253         union {
 254                 struct cfg80211_connect_resp_params cr;
 255                 struct cfg80211_roam_info rm;
 256                 struct {
 257                         const u8 *ie;
 258                         size_t ie_len;
 259                         u16 reason;
 260                         bool locally_generated;
 261                 } dc;
 262                 struct {
 263                         u8 bssid[ETH_ALEN];
 264                         struct ieee80211_channel *channel;
 265                 } ij;
 266                 struct {
 267                         u8 bssid[ETH_ALEN];
 268                 } pa;
 269         };
 270 };
 271
 272 struct cfg80211_cached_keys {
 273         struct key_params params[CFG80211_MAX_WEP_KEYS];
 274         u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
 275         int def;
 276 };
 277
 278 enum cfg80211_chan_mode {
 279         CHAN_MODE_UNDEFINED,
 280         CHAN_MODE_SHARED,
 281         CHAN_MODE_EXCLUSIVE,
 282 };
 283
 284 struct cfg80211_beacon_registration {
 285         struct list_head list;
 286         u32 nlportid;
 287 };
 288
 289 struct cfg80211_cqm_config {
 290         u32 rssi_hyst;
 291         s32 last_rssi_event_value;
 292         int n_rssi_thresholds;
 293         s32 rssi_thresholds[];
 294 };
 295
 296 void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
 297
 298 /* free object */
 299 void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
 300
 301 int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 302                         char *newname);
 303
 304 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
 305
 306 void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
 307 void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
 308                       unsigned long age_secs);
 309 void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
 310                                      struct ieee80211_channel *channel);
 311
 312 /* IBSS */
 313 int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 314                          struct net_device *dev,
 315                          struct cfg80211_ibss_params *params,
 316                          struct cfg80211_cached_keys *connkeys);
 317 void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
 318 int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 319                           struct net_device *dev, bool nowext);
 320 int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 321                         struct net_device *dev, bool nowext);
 322 void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
 323                             struct ieee80211_channel *channel);
 324 int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
 325                             struct wireless_dev *wdev);
 326
 327 /* mesh */
 328 extern const struct mesh_config default_mesh_config;
 329 extern const struct mesh_setup default_mesh_setup;
 330 int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 331                          struct net_device *dev,
 332                          struct mesh_setup *setup,
 333                          const struct mesh_config *conf);
 334 int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 335                           struct net_device *dev);
 336 int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 337                         struct net_device *dev);
 338 int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
 339                               struct wireless_dev *wdev,
 340                               struct cfg80211_chan_def *chandef);
 341
 342 /* OCB */
 343 int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
 344                         struct net_device *dev,
 345                         struct ocb_setup *setup);
 346 int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
 347                       struct net_device *dev,
 348                       struct ocb_setup *setup);
 349 int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
 350                          struct net_device *dev);
 351 int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
 352                        struct net_device *dev);
 353
 354 /* AP */
 355 int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 356                        struct net_device *dev, bool notify);
 357 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 358                      struct net_device *dev, bool notify);
 359
 360 /* MLME */
 361 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 362                        struct net_device *dev,
 363                        struct ieee80211_channel *chan,
 364                        enum nl80211_auth_type auth_type,
 365                        const u8 *bssid,
 366                        const u8 *ssid, int ssid_len,
 367                        const u8 *ie, int ie_len,
 368                        const u8 *key, int key_len, int key_idx,
 369                        const u8 *auth_data, int auth_data_len);
 370 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 371                         struct net_device *dev,
 372                         struct ieee80211_channel *chan,
 373                         const u8 *bssid,
 374                         const u8 *ssid, int ssid_len,
 375                         struct cfg80211_assoc_request *req);
 376 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 377                          struct net_device *dev, const u8 *bssid,
 378                          const u8 *ie, int ie_len, u16 reason,
 379                          bool local_state_change);
 380 int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 381                            struct net_device *dev, const u8 *bssid,
 382                            const u8 *ie, int ie_len, u16 reason,
 383                            bool local_state_change);
 384 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 385                         struct net_device *dev);
 386 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
 387                                 u16 frame_type, const u8 *match_data,
 388                                 int match_len, bool multicast_rx,
 389                                 struct netlink_ext_ack *extack);
 390 void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk);
 391 void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
 392 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
 393 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 394                           struct wireless_dev *wdev,
 395                           struct cfg80211_mgmt_tx_params *params,
 396                           u64 *cookie);
 397 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
 398                                const struct ieee80211_ht_cap *ht_capa_mask);
 399 void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
 400                                 const struct ieee80211_vht_cap *vht_capa_mask);
 401
 402 /* SME events */
 403 int cfg80211_connect(struct cfg80211_registered_device *rdev,
 404                      struct net_device *dev,
 405                      struct cfg80211_connect_params *connect,
 406                      struct cfg80211_cached_keys *connkeys,
 407                      const u8 *prev_bssid);
 408 void __cfg80211_connect_result(struct net_device *dev,
 409                                struct cfg80211_connect_resp_params *params,
 410                                bool wextev);
 411 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
 412                              size_t ie_len, u16 reason, bool from_ap);
 413 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 414                         struct net_device *dev, u16 reason,
 415                         bool wextev);
 416 void __cfg80211_roamed(struct wireless_dev *wdev,
 417                        struct cfg80211_roam_info *info);
 418 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid);
 419 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
 420                               struct wireless_dev *wdev);
 421 void cfg80211_autodisconnect_wk(struct work_struct *work);
 422
 423 /* SME implementation */
 424 void cfg80211_conn_work(struct work_struct *work);
 425 void cfg80211_sme_scan_done(struct net_device *dev);
 426 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
 427 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
 428 void cfg80211_sme_disassoc(struct wireless_dev *wdev);
 429 void cfg80211_sme_deauth(struct wireless_dev *wdev);
 430 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
 431 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
 432 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
 433
 434 /* internal helpers */
 435 bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
 436 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 437                                    struct key_params *params, int key_idx,
 438                                    bool pairwise, const u8 *mac_addr);
 439 void __cfg80211_scan_done(struct work_struct *wk);
 440 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
 441                            bool send_message);
 442 void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
 443                                  struct cfg80211_sched_scan_request *req);
 444 int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
 445                                      bool want_multi);
 446 void cfg80211_sched_scan_results_wk(struct work_struct *work);
 447 int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
 448                                  struct cfg80211_sched_scan_request *req,
 449                                  bool driver_initiated);
 450 int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 451                                u64 reqid, bool driver_initiated);
 452 void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
 453 int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 454                           struct net_device *dev, enum nl80211_iftype ntype,
 455                           struct vif_params *params);
 456 void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
 457 void cfg80211_process_wdev_events(struct wireless_dev *wdev);
 458
 459 bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
 460                                 u32 center_freq_khz, u32 bw_khz);
 461
 462 int cfg80211_scan(struct cfg80211_registered_device *rdev);
 463
 464 extern struct work_struct cfg80211_disconnect_work;
 465
 466 /**
 467  * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
 468  * @wiphy: the wiphy to validate against
 469  * @chandef: the channel definition to check
 470  *
 471  * Checks if chandef is usable and we can/need start CAC on such channel.
 472  *
 473  * Return: true if all channels available and at least
 474  *         one channel requires CAC (NL80211_DFS_USABLE)
 475  */
 476 bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
 477                                  const struct cfg80211_chan_def *chandef);
 478
 479 void cfg80211_set_dfs_state(struct wiphy *wiphy,
 480                             const struct cfg80211_chan_def *chandef,
 481                             enum nl80211_dfs_state dfs_state);
 482
 483 void cfg80211_dfs_channels_update_work(struct work_struct *work);
 484
 485 unsigned int
 486 cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
 487                               const struct cfg80211_chan_def *chandef);
 488
 489 void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
 490
 491 bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
 492                                   struct ieee80211_channel *chan);
 493
 494 bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
 495
 496 bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
 497                           struct ieee80211_channel *chan);
 498
 499 static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
 500 {
 501         unsigned long end = jiffies;
 502
 503         if (end >= start)
 504                 return jiffies_to_msecs(end - start);
 505
 506         return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
 507 }
 508
 509 void
 510 cfg80211_get_chan_state(struct wireless_dev *wdev,
 511                         struct ieee80211_channel **chan,
 512                         enum cfg80211_chan_mode *chanmode,
 513                         u8 *radar_detect);
 514
 515 int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
 516                                  struct cfg80211_chan_def *chandef);
 517
 518 int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 519                            const u8 *rates, unsigned int n_rates,
 520                            u32 *mask);
 521
 522 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 523                                  enum nl80211_iftype iftype, u32 beacon_int);
 524
 525 void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
 526                                enum nl80211_iftype iftype, int num);
 527
 528 void __cfg80211_leave(struct cfg80211_registered_device *rdev,
 529                       struct wireless_dev *wdev);
 530 void cfg80211_leave(struct cfg80211_registered_device *rdev,
 531                     struct wireless_dev *wdev);
 532
 533 void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
 534                               struct wireless_dev *wdev);
 535
 536 void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
 537                        struct wireless_dev *wdev);
 538
 539 struct cfg80211_internal_bss *
 540 cfg80211_bss_update(struct cfg80211_registered_device *rdev,
 541                     struct cfg80211_internal_bss *tmp,
 542                     bool signal_valid, unsigned long ts);
 543 #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
 544 #define CFG80211_DEV_WARN_ON(cond)      WARN_ON(cond)
 545 #else
 546 /*
 547  * Trick to enable using it as a condition,
 548  * and also not give a warning when it's
 549  * not used that way.
 550  */
 551 #define CFG80211_DEV_WARN_ON(cond)      ({bool __r = (cond); __r; })
 552 #endif
 553
 554 void cfg80211_cqm_config_free(struct wireless_dev *wdev);
 555
 556 void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
 557 void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
 558 void cfg80211_pmsr_free_wk(struct work_struct *work);
 559
 560 #endif /* __NET_WIRELESS_CORE_H */