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) 2018-2021 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 work_struct rfkill_block;
  31
  32         /* ISO / IEC 3166 alpha2 for which this device is receiving
  33          * country IEs on, this can help disregard country IEs from APs
  34          * on the same alpha2 quickly. The alpha2 may differ from
  35          * cfg80211_regdomain's alpha2 when an intersection has occurred.
  36          * If the AP is reconfigured this can also be used to tell us if
  37          * the country on the country IE changed. */
  38         char country_ie_alpha2[2];
  39
  40         /*
  41          * the driver requests the regulatory core to set this regulatory
  42          * domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
  43          * devices using the regulatory_set_wiphy_regd() API
  44          */
  45         const struct ieee80211_regdomain *requested_regd;
  46
  47         /* If a Country IE has been received this tells us the environment
  48          * which its telling us its in. This defaults to ENVIRON_ANY */
  49         enum environment_cap env;
  50
  51         /* wiphy index, internal only */
  52         int wiphy_idx;
  53
  54         /* protected by RTNL */
  55         int devlist_generation, wdev_id;
  56         int opencount;
  57         wait_queue_head_t dev_wait;
  58
  59         struct list_head beacon_registrations;
  60         spinlock_t beacon_registrations_lock;
  61
  62         /* protected by RTNL only */
  63         int num_running_ifaces;
  64         int num_running_monitor_ifaces;
  65         u64 cookie_counter;
  66
  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         u32 bss_entries;
  73         struct cfg80211_scan_request *scan_req; /* protected by RTNL */
  74         struct cfg80211_scan_request *int_scan_req;
  75         struct sk_buff *scan_msg;
  76         struct list_head sched_scan_req_list;
  77         time64_t suspend_at;
  78         struct work_struct scan_done_wk;
  79
  80         struct genl_info *cur_cmd_info;
  81
  82         struct work_struct conn_work;
  83         struct work_struct event_work;
  84
  85         struct delayed_work dfs_update_channels_wk;
  86
  87         /* netlink port which started critical protocol (0 means not started) */
  88         u32 crit_proto_nlportid;
  89
  90         struct cfg80211_coalesce *coalesce;
  91
  92         struct work_struct destroy_work;
  93         struct work_struct sched_scan_stop_wk;
  94         struct work_struct sched_scan_res_wk;
  95
  96         struct cfg80211_chan_def radar_chandef;
  97         struct work_struct propagate_radar_detect_wk;
  98
  99         struct cfg80211_chan_def cac_done_chandef;
 100         struct work_struct propagate_cac_done_wk;
 101
 102         struct work_struct mgmt_registrations_update_wk;
 103
 104         /* must be last because of the way we do wiphy_priv(),
 105          * and it should at least be aligned to NETDEV_ALIGN */
 106         struct wiphy wiphy __aligned(NETDEV_ALIGN);
 107 };
 108
 109 static inline
 110 struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
 111 {
 112         BUG_ON(!wiphy);
 113         return container_of(wiphy, struct cfg80211_registered_device, wiphy);
 114 }
 115
 116 static inline void
 117 cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
 118 {
 119 #ifdef CONFIG_PM
 120         int i;
 121
 122         if (!rdev->wiphy.wowlan_config)
 123                 return;
 124         for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
 125                 kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
 126         kfree(rdev->wiphy.wowlan_config->patterns);
 127         if (rdev->wiphy.wowlan_config->tcp &&
 128             rdev->wiphy.wowlan_config->tcp->sock)
 129                 sock_release(rdev->wiphy.wowlan_config->tcp->sock);
 130         kfree(rdev->wiphy.wowlan_config->tcp);
 131         kfree(rdev->wiphy.wowlan_config->nd_config);
 132         kfree(rdev->wiphy.wowlan_config);
 133 #endif
 134 }
 135
 136 static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
 137 {
 138         u64 r = ++rdev->cookie_counter;
 139
 140         if (WARN_ON(r == 0))
 141                 r = ++rdev->cookie_counter;
 142
 143         return r;
 144 }
 145
 146 extern struct workqueue_struct *cfg80211_wq;
 147 extern struct list_head cfg80211_rdev_list;
 148 extern int cfg80211_rdev_list_generation;
 149
 150 struct cfg80211_internal_bss {
 151         struct list_head list;
 152         struct list_head hidden_list;
 153         struct rb_node rbn;
 154         u64 ts_boottime;
 155         unsigned long ts;
 156         unsigned long refcount;
 157         atomic_t hold;
 158
 159         /* time at the start of the reception of the first octet of the
 160          * timestamp field of the last beacon/probe received for this BSS.
 161          * The time is the TSF of the BSS specified by %parent_bssid.
 162          */
 163         u64 parent_tsf;
 164
 165         /* the BSS according to which %parent_tsf is set. This is set to
 166          * the BSS that the interface that requested the scan was connected to
 167          * when the beacon/probe was received.
 168          */
 169         u8 parent_bssid[ETH_ALEN] __aligned(2);
 170
 171         /* must be last because of priv member */
 172         struct cfg80211_bss pub;
 173 };
 174
 175 static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
 176 {
 177         return container_of(pub, struct cfg80211_internal_bss, pub);
 178 }
 179
 180 static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
 181 {
 182         atomic_inc(&bss->hold);
 183         if (bss->pub.transmitted_bss) {
 184                 bss = container_of(bss->pub.transmitted_bss,
 185                                    struct cfg80211_internal_bss, pub);
 186                 atomic_inc(&bss->hold);
 187         }
 188 }
 189
 190 static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
 191 {
 192         int r = atomic_dec_return(&bss->hold);
 193         WARN_ON(r < 0);
 194         if (bss->pub.transmitted_bss) {
 195                 bss = container_of(bss->pub.transmitted_bss,
 196                                    struct cfg80211_internal_bss, pub);
 197                 r = atomic_dec_return(&bss->hold);
 198                 WARN_ON(r < 0);
 199         }
 200 }
 201
 202
 203 struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
 204 int get_wiphy_idx(struct wiphy *wiphy);
 205
 206 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
 207
 208 int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 209                           struct net *net);
 210
 211 void cfg80211_init_wdev(struct wireless_dev *wdev);
 212 void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
 213                             struct wireless_dev *wdev);
 214
 215 static inline void wdev_lock(struct wireless_dev *wdev)
 216         __acquires(wdev)
 217 {
 218         mutex_lock(&wdev->mtx);
 219         __acquire(wdev->mtx);
 220 }
 221
 222 static inline void wdev_unlock(struct wireless_dev *wdev)
 223         __releases(wdev)
 224 {
 225         __release(wdev->mtx);
 226         mutex_unlock(&wdev->mtx);
 227 }
 228
 229 #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
 230
 231 static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
 232 {
 233         lockdep_assert_held(&rdev->wiphy.mtx);
 234
 235         return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
 236                rdev->num_running_ifaces > 0;
 237 }
 238
 239 enum cfg80211_event_type {
 240         EVENT_CONNECT_RESULT,
 241         EVENT_ROAMED,
 242         EVENT_DISCONNECTED,
 243         EVENT_IBSS_JOINED,
 244         EVENT_STOPPED,
 245         EVENT_PORT_AUTHORIZED,
 246 };
 247
 248 struct cfg80211_event {
 249         struct list_head list;
 250         enum cfg80211_event_type type;
 251
 252         union {
 253                 struct cfg80211_connect_resp_params cr;
 254                 struct cfg80211_roam_info rm;
 255                 struct {
 256                         const u8 *ie;
 257                         size_t ie_len;
 258                         u16 reason;
 259                         bool locally_generated;
 260                 } dc;
 261                 struct {
 262                         u8 bssid[ETH_ALEN];
 263                         struct ieee80211_channel *channel;
 264                 } ij;
 265                 struct {
 266                         u8 bssid[ETH_ALEN];
 267                 } pa;
 268         };
 269 };
 270
 271 struct cfg80211_cached_keys {
 272         struct key_params params[CFG80211_MAX_WEP_KEYS];
 273         u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
 274         int def;
 275 };
 276
 277 enum cfg80211_chan_mode {
 278         CHAN_MODE_UNDEFINED,
 279         CHAN_MODE_SHARED,
 280         CHAN_MODE_EXCLUSIVE,
 281 };
 282
 283 struct cfg80211_beacon_registration {
 284         struct list_head list;
 285         u32 nlportid;
 286 };
 287
 288 struct cfg80211_cqm_config {
 289         u32 rssi_hyst;
 290         s32 last_rssi_event_value;
 291         int n_rssi_thresholds;
 292         s32 rssi_thresholds[];
 293 };
 294
 295 void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
 296
 297 /* free object */
 298 void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
 299
 300 int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 301                         char *newname);
 302
 303 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
 304
 305 void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
 306 void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
 307                       unsigned long age_secs);
 308 void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
 309                                      struct ieee80211_channel *channel);
 310
 311 /* IBSS */
 312 int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 313                          struct net_device *dev,
 314                          struct cfg80211_ibss_params *params,
 315                          struct cfg80211_cached_keys *connkeys);
 316 void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
 317 int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 318                           struct net_device *dev, bool nowext);
 319 int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 320                         struct net_device *dev, bool nowext);
 321 void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
 322                             struct ieee80211_channel *channel);
 323 int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
 324                             struct wireless_dev *wdev);
 325
 326 /* mesh */
 327 extern const struct mesh_config default_mesh_config;
 328 extern const struct mesh_setup default_mesh_setup;
 329 int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 330                          struct net_device *dev,
 331                          struct mesh_setup *setup,
 332                          const struct mesh_config *conf);
 333 int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 334                           struct net_device *dev);
 335 int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 336                         struct net_device *dev);
 337 int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
 338                               struct wireless_dev *wdev,
 339                               struct cfg80211_chan_def *chandef);
 340
 341 /* OCB */
 342 int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
 343                         struct net_device *dev,
 344                         struct ocb_setup *setup);
 345 int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
 346                       struct net_device *dev,
 347                       struct ocb_setup *setup);
 348 int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
 349                          struct net_device *dev);
 350 int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
 351                        struct net_device *dev);
 352
 353 /* AP */
 354 int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 355                        struct net_device *dev, bool notify);
 356 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 357                      struct net_device *dev, bool notify);
 358
 359 /* MLME */
 360 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 361                        struct net_device *dev,
 362                        struct ieee80211_channel *chan,
 363                        enum nl80211_auth_type auth_type,
 364                        const u8 *bssid,
 365                        const u8 *ssid, int ssid_len,
 366                        const u8 *ie, int ie_len,
 367                        const u8 *key, int key_len, int key_idx,
 368                        const u8 *auth_data, int auth_data_len);
 369 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 370                         struct net_device *dev,
 371                         struct ieee80211_channel *chan,
 372                         const u8 *bssid,
 373                         const u8 *ssid, int ssid_len,
 374                         struct cfg80211_assoc_request *req);
 375 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 376                          struct net_device *dev, const u8 *bssid,
 377                          const u8 *ie, int ie_len, u16 reason,
 378                          bool local_state_change);
 379 int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 380                            struct net_device *dev, const u8 *bssid,
 381                            const u8 *ie, int ie_len, u16 reason,
 382                            bool local_state_change);
 383 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 384                         struct net_device *dev);
 385 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
 386                                 u16 frame_type, const u8 *match_data,
 387                                 int match_len, bool multicast_rx,
 388                                 struct netlink_ext_ack *extack);
 389 void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk);
 390 void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
 391 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
 392 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 393                           struct wireless_dev *wdev,
 394                           struct cfg80211_mgmt_tx_params *params,
 395                           u64 *cookie);
 396 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
 397                                const struct ieee80211_ht_cap *ht_capa_mask);
 398 void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
 399                                 const struct ieee80211_vht_cap *vht_capa_mask);
 400
 401 /* SME events */
 402 int cfg80211_connect(struct cfg80211_registered_device *rdev,
 403                      struct net_device *dev,
 404                      struct cfg80211_connect_params *connect,
 405                      struct cfg80211_cached_keys *connkeys,
 406                      const u8 *prev_bssid);
 407 void __cfg80211_connect_result(struct net_device *dev,
 408                                struct cfg80211_connect_resp_params *params,
 409                                bool wextev);
 410 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
 411                              size_t ie_len, u16 reason, bool from_ap);
 412 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 413                         struct net_device *dev, u16 reason,
 414                         bool wextev);
 415 void __cfg80211_roamed(struct wireless_dev *wdev,
 416                        struct cfg80211_roam_info *info);
 417 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid);
 418 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
 419                               struct wireless_dev *wdev);
 420 void cfg80211_autodisconnect_wk(struct work_struct *work);
 421
 422 /* SME implementation */
 423 void cfg80211_conn_work(struct work_struct *work);
 424 void cfg80211_sme_scan_done(struct net_device *dev);
 425 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
 426 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
 427 void cfg80211_sme_disassoc(struct wireless_dev *wdev);
 428 void cfg80211_sme_deauth(struct wireless_dev *wdev);
 429 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
 430 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
 431 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
 432
 433 /* internal helpers */
 434 bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
 435 bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
 436                             int key_idx, bool pairwise);
 437 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 438                                    struct key_params *params, int key_idx,
 439                                    bool pairwise, const u8 *mac_addr);
 440 void __cfg80211_scan_done(struct work_struct *wk);
 441 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
 442                            bool send_message);
 443 void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
 444                                  struct cfg80211_sched_scan_request *req);
 445 int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
 446                                      bool want_multi);
 447 void cfg80211_sched_scan_results_wk(struct work_struct *work);
 448 int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
 449                                  struct cfg80211_sched_scan_request *req,
 450                                  bool driver_initiated);
 451 int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 452                                u64 reqid, bool driver_initiated);
 453 void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
 454 int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 455                           struct net_device *dev, enum nl80211_iftype ntype,
 456                           struct vif_params *params);
 457 void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
 458 void cfg80211_process_wdev_events(struct wireless_dev *wdev);
 459
 460 bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
 461                                 u32 center_freq_khz, u32 bw_khz);
 462
 463 int cfg80211_scan(struct cfg80211_registered_device *rdev);
 464
 465 extern struct work_struct cfg80211_disconnect_work;
 466
 467 /**
 468  * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
 469  * @wiphy: the wiphy to validate against
 470  * @chandef: the channel definition to check
 471  *
 472  * Checks if chandef is usable and we can/need start CAC on such channel.
 473  *
 474  * Return: true if all channels available and at least
 475  *         one channel requires CAC (NL80211_DFS_USABLE)
 476  */
 477 bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
 478                                  const struct cfg80211_chan_def *chandef);
 479
 480 void cfg80211_set_dfs_state(struct wiphy *wiphy,
 481                             const struct cfg80211_chan_def *chandef,
 482                             enum nl80211_dfs_state dfs_state);
 483
 484 void cfg80211_dfs_channels_update_work(struct work_struct *work);
 485
 486 unsigned int
 487 cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
 488                               const struct cfg80211_chan_def *chandef);
 489
 490 void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
 491
 492 bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
 493                                   struct ieee80211_channel *chan);
 494
 495 bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
 496
 497 bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
 498                           struct ieee80211_channel *chan);
 499
 500 static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
 501 {
 502         unsigned long end = jiffies;
 503
 504         if (end >= start)
 505                 return jiffies_to_msecs(end - start);
 506
 507         return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
 508 }
 509
 510 void
 511 cfg80211_get_chan_state(struct wireless_dev *wdev,
 512                         struct ieee80211_channel **chan,
 513                         enum cfg80211_chan_mode *chanmode,
 514                         u8 *radar_detect);
 515
 516 int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
 517                                  struct cfg80211_chan_def *chandef);
 518
 519 int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 520                            const u8 *rates, unsigned int n_rates,
 521                            u32 *mask);
 522
 523 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 524                                  enum nl80211_iftype iftype, u32 beacon_int);
 525
 526 void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
 527                                enum nl80211_iftype iftype, int num);
 528
 529 void __cfg80211_leave(struct cfg80211_registered_device *rdev,
 530                       struct wireless_dev *wdev);
 531 void cfg80211_leave(struct cfg80211_registered_device *rdev,
 532                     struct wireless_dev *wdev);
 533
 534 void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
 535                               struct wireless_dev *wdev);
 536
 537 void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
 538                        struct wireless_dev *wdev);
 539
 540 struct cfg80211_internal_bss *
 541 cfg80211_bss_update(struct cfg80211_registered_device *rdev,
 542                     struct cfg80211_internal_bss *tmp,
 543                     bool signal_valid, unsigned long ts);
 544 #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
 545 #define CFG80211_DEV_WARN_ON(cond)      WARN_ON(cond)
 546 #else
 547 /*
 548  * Trick to enable using it as a condition,
 549  * and also not give a warning when it's
 550  * not used that way.
 551  */
 552 #define CFG80211_DEV_WARN_ON(cond)      ({bool __r = (cond); __r; })
 553 #endif
 554
 555 void cfg80211_cqm_config_free(struct wireless_dev *wdev);
 556
 557 void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
 558 void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
 559 void cfg80211_pmsr_free_wk(struct work_struct *work);
 560
 561 #endif /* __NET_WIRELESS_CORE_H */