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) 2018-2022 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         struct wireless_dev *background_radar_wdev;
  88         struct cfg80211_chan_def background_radar_chandef;
  89         struct delayed_work background_cac_done_wk;
  90         struct work_struct background_cac_abort_wk;
  91
  92         /* netlink port which started critical protocol (0 means not started) */
  93         u32 crit_proto_nlportid;
  94
  95         struct cfg80211_coalesce *coalesce;
  96
  97         struct work_struct destroy_work;
  98         struct work_struct sched_scan_stop_wk;
  99         struct work_struct sched_scan_res_wk;
 100
 101         struct cfg80211_chan_def radar_chandef;
 102         struct work_struct propagate_radar_detect_wk;
 103
 104         struct cfg80211_chan_def cac_done_chandef;
 105         struct work_struct propagate_cac_done_wk;
 106
 107         struct work_struct mgmt_registrations_update_wk;
 108         /* lock for all wdev lists */
 109         spinlock_t mgmt_registrations_lock;
 110
 111         struct work_struct wiphy_work;
 112         struct list_head wiphy_work_list;
 113         /* protects the list above */
 114         spinlock_t wiphy_work_lock;
 115         bool suspended;
 116
 117         /* must be last because of the way we do wiphy_priv(),
 118          * and it should at least be aligned to NETDEV_ALIGN */
 119         struct wiphy wiphy __aligned(NETDEV_ALIGN);
 120 };
 121
 122 static inline
 123 struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
 124 {
 125         BUG_ON(!wiphy);
 126         return container_of(wiphy, struct cfg80211_registered_device, wiphy);
 127 }
 128
 129 static inline void
 130 cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
 131 {
 132 #ifdef CONFIG_PM
 133         int i;
 134
 135         if (!rdev->wiphy.wowlan_config)
 136                 return;
 137         for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
 138                 kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
 139         kfree(rdev->wiphy.wowlan_config->patterns);
 140         if (rdev->wiphy.wowlan_config->tcp &&
 141             rdev->wiphy.wowlan_config->tcp->sock)
 142                 sock_release(rdev->wiphy.wowlan_config->tcp->sock);
 143         kfree(rdev->wiphy.wowlan_config->tcp);
 144         kfree(rdev->wiphy.wowlan_config->nd_config);
 145         kfree(rdev->wiphy.wowlan_config);
 146 #endif
 147 }
 148
 149 static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
 150 {
 151         u64 r = ++rdev->cookie_counter;
 152
 153         if (WARN_ON(r == 0))
 154                 r = ++rdev->cookie_counter;
 155
 156         return r;
 157 }
 158
 159 extern struct workqueue_struct *cfg80211_wq;
 160 extern struct list_head cfg80211_rdev_list;
 161 extern int cfg80211_rdev_list_generation;
 162
 163 struct cfg80211_internal_bss {
 164         struct list_head list;
 165         struct list_head hidden_list;
 166         struct rb_node rbn;
 167         u64 ts_boottime;
 168         unsigned long ts;
 169         unsigned long refcount;
 170         atomic_t hold;
 171
 172         /* time at the start of the reception of the first octet of the
 173          * timestamp field of the last beacon/probe received for this BSS.
 174          * The time is the TSF of the BSS specified by %parent_bssid.
 175          */
 176         u64 parent_tsf;
 177
 178         /* the BSS according to which %parent_tsf is set. This is set to
 179          * the BSS that the interface that requested the scan was connected to
 180          * when the beacon/probe was received.
 181          */
 182         u8 parent_bssid[ETH_ALEN] __aligned(2);
 183
 184         /* must be last because of priv member */
 185         struct cfg80211_bss pub;
 186 };
 187
 188 static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
 189 {
 190         return container_of(pub, struct cfg80211_internal_bss, pub);
 191 }
 192
 193 static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
 194 {
 195         atomic_inc(&bss->hold);
 196         if (bss->pub.transmitted_bss) {
 197                 bss = container_of(bss->pub.transmitted_bss,
 198                                    struct cfg80211_internal_bss, pub);
 199                 atomic_inc(&bss->hold);
 200         }
 201 }
 202
 203 static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
 204 {
 205         int r = atomic_dec_return(&bss->hold);
 206         WARN_ON(r < 0);
 207         if (bss->pub.transmitted_bss) {
 208                 bss = container_of(bss->pub.transmitted_bss,
 209                                    struct cfg80211_internal_bss, pub);
 210                 r = atomic_dec_return(&bss->hold);
 211                 WARN_ON(r < 0);
 212         }
 213 }
 214
 215
 216 struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
 217 int get_wiphy_idx(struct wiphy *wiphy);
 218
 219 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
 220
 221 int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 222                           struct net *net);
 223
 224 void cfg80211_init_wdev(struct wireless_dev *wdev);
 225 void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
 226                             struct wireless_dev *wdev);
 227
 228 static inline void wdev_lock(struct wireless_dev *wdev)
 229         __acquires(wdev)
 230 {
 231         mutex_lock(&wdev->mtx);
 232         __acquire(wdev->mtx);
 233 }
 234
 235 static inline void wdev_unlock(struct wireless_dev *wdev)
 236         __releases(wdev)
 237 {
 238         __release(wdev->mtx);
 239         mutex_unlock(&wdev->mtx);
 240 }
 241
 242 #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
 243
 244 static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
 245 {
 246         lockdep_assert_held(&rdev->wiphy.mtx);
 247
 248         return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
 249                rdev->num_running_ifaces > 0;
 250 }
 251
 252 enum cfg80211_event_type {
 253         EVENT_CONNECT_RESULT,
 254         EVENT_ROAMED,
 255         EVENT_DISCONNECTED,
 256         EVENT_IBSS_JOINED,
 257         EVENT_STOPPED,
 258         EVENT_PORT_AUTHORIZED,
 259 };
 260
 261 struct cfg80211_event {
 262         struct list_head list;
 263         enum cfg80211_event_type type;
 264
 265         union {
 266                 struct cfg80211_connect_resp_params cr;
 267                 struct cfg80211_roam_info rm;
 268                 struct {
 269                         const u8 *ie;
 270                         size_t ie_len;
 271                         u16 reason;
 272                         bool locally_generated;
 273                 } dc;
 274                 struct {
 275                         u8 bssid[ETH_ALEN];
 276                         struct ieee80211_channel *channel;
 277                 } ij;
 278                 struct {
 279                         u8 bssid[ETH_ALEN];
 280                 } pa;
 281         };
 282 };
 283
 284 struct cfg80211_cached_keys {
 285         struct key_params params[CFG80211_MAX_WEP_KEYS];
 286         u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
 287         int def;
 288 };
 289
 290 struct cfg80211_beacon_registration {
 291         struct list_head list;
 292         u32 nlportid;
 293 };
 294
 295 struct cfg80211_cqm_config {
 296         struct rcu_head rcu_head;
 297         u32 rssi_hyst;
 298         s32 last_rssi_event_value;
 299         enum nl80211_cqm_rssi_threshold_event last_rssi_event_type;
 300         bool use_range_api;
 301         int n_rssi_thresholds;
 302         s32 rssi_thresholds[];
 303 };
 304
 305 void cfg80211_cqm_rssi_notify_work(struct wiphy *wiphy,
 306                                    struct wiphy_work *work);
 307
 308 void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
 309
 310 /* free object */
 311 void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
 312
 313 int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 314                         char *newname);
 315
 316 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
 317
 318 void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
 319 void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
 320                       unsigned long age_secs);
 321 void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
 322                                      unsigned int link,
 323                                      struct ieee80211_channel *channel);
 324
 325 /* IBSS */
 326 int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 327                          struct net_device *dev,
 328                          struct cfg80211_ibss_params *params,
 329                          struct cfg80211_cached_keys *connkeys);
 330 void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
 331 int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 332                           struct net_device *dev, bool nowext);
 333 int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 334                         struct net_device *dev, bool nowext);
 335 void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
 336                             struct ieee80211_channel *channel);
 337 int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
 338                             struct wireless_dev *wdev);
 339
 340 /* mesh */
 341 extern const struct mesh_config default_mesh_config;
 342 extern const struct mesh_setup default_mesh_setup;
 343 int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 344                          struct net_device *dev,
 345                          struct mesh_setup *setup,
 346                          const struct mesh_config *conf);
 347 int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 348                           struct net_device *dev);
 349 int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
 350                         struct net_device *dev);
 351 int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
 352                               struct wireless_dev *wdev,
 353                               struct cfg80211_chan_def *chandef);
 354
 355 /* OCB */
 356 int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
 357                         struct net_device *dev,
 358                         struct ocb_setup *setup);
 359 int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
 360                       struct net_device *dev,
 361                       struct ocb_setup *setup);
 362 int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
 363                          struct net_device *dev);
 364 int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
 365                        struct net_device *dev);
 366
 367 /* AP */
 368 int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 369                        struct net_device *dev, int link,
 370                        bool notify);
 371 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 372                      struct net_device *dev, int link,
 373                      bool notify);
 374
 375 /* MLME */
 376 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 377                        struct net_device *dev,
 378                        struct cfg80211_auth_request *req);
 379 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 380                         struct net_device *dev,
 381                         struct cfg80211_assoc_request *req);
 382 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 383                          struct net_device *dev, const u8 *bssid,
 384                          const u8 *ie, int ie_len, u16 reason,
 385                          bool local_state_change);
 386 int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 387                            struct net_device *dev, const u8 *ap_addr,
 388                            const u8 *ie, int ie_len, u16 reason,
 389                            bool local_state_change);
 390 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 391                         struct net_device *dev);
 392 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
 393                                 u16 frame_type, const u8 *match_data,
 394                                 int match_len, bool multicast_rx,
 395                                 struct netlink_ext_ack *extack);
 396 void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk);
 397 void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
 398 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
 399 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 400                           struct wireless_dev *wdev,
 401                           struct cfg80211_mgmt_tx_params *params,
 402                           u64 *cookie);
 403 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
 404                                const struct ieee80211_ht_cap *ht_capa_mask);
 405 void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
 406                                 const struct ieee80211_vht_cap *vht_capa_mask);
 407
 408 /* SME events */
 409 int cfg80211_connect(struct cfg80211_registered_device *rdev,
 410                      struct net_device *dev,
 411                      struct cfg80211_connect_params *connect,
 412                      struct cfg80211_cached_keys *connkeys,
 413                      const u8 *prev_bssid);
 414 void __cfg80211_connect_result(struct net_device *dev,
 415                                struct cfg80211_connect_resp_params *params,
 416                                bool wextev);
 417 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
 418                              size_t ie_len, u16 reason, bool from_ap);
 419 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 420                         struct net_device *dev, u16 reason,
 421                         bool wextev);
 422 void __cfg80211_roamed(struct wireless_dev *wdev,
 423                        struct cfg80211_roam_info *info);
 424 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid);
 425 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
 426                               struct wireless_dev *wdev);
 427 void cfg80211_autodisconnect_wk(struct work_struct *work);
 428
 429 /* SME implementation */
 430 void cfg80211_conn_work(struct work_struct *work);
 431 void cfg80211_sme_scan_done(struct net_device *dev);
 432 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
 433 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
 434 void cfg80211_sme_disassoc(struct wireless_dev *wdev);
 435 void cfg80211_sme_deauth(struct wireless_dev *wdev);
 436 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
 437 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
 438 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
 439
 440 /* internal helpers */
 441 bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
 442 bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
 443                             int key_idx, bool pairwise);
 444 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 445                                    struct key_params *params, int key_idx,
 446                                    bool pairwise, const u8 *mac_addr);
 447 void __cfg80211_scan_done(struct work_struct *wk);
 448 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
 449                            bool send_message);
 450 void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
 451                                  struct cfg80211_sched_scan_request *req);
 452 int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
 453                                      bool want_multi);
 454 void cfg80211_sched_scan_results_wk(struct work_struct *work);
 455 int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
 456                                  struct cfg80211_sched_scan_request *req,
 457                                  bool driver_initiated);
 458 int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 459                                u64 reqid, bool driver_initiated);
 460 void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
 461 int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 462                           struct net_device *dev, enum nl80211_iftype ntype,
 463                           struct vif_params *params);
 464 void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
 465 void cfg80211_process_wiphy_works(struct cfg80211_registered_device *rdev,
 466                                   struct wiphy_work *end);
 467 void cfg80211_process_wdev_events(struct wireless_dev *wdev);
 468
 469 bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
 470                                 u32 center_freq_khz, u32 bw_khz);
 471
 472 int cfg80211_scan(struct cfg80211_registered_device *rdev);
 473
 474 extern struct work_struct cfg80211_disconnect_work;
 475
 476 /**
 477  * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
 478  * @wiphy: the wiphy to validate against
 479  * @chandef: the channel definition to check
 480  *
 481  * Checks if chandef is usable and we can/need start CAC on such channel.
 482  *
 483  * Return: true if all channels available and at least
 484  *         one channel requires CAC (NL80211_DFS_USABLE)
 485  */
 486 bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
 487                                  const struct cfg80211_chan_def *chandef);
 488
 489 void cfg80211_set_dfs_state(struct wiphy *wiphy,
 490                             const struct cfg80211_chan_def *chandef,
 491                             enum nl80211_dfs_state dfs_state);
 492
 493 void cfg80211_dfs_channels_update_work(struct work_struct *work);
 494
 495 unsigned int
 496 cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
 497                               const struct cfg80211_chan_def *chandef);
 498
 499 void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
 500
 501 int
 502 cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rdev,
 503                                           struct wireless_dev *wdev,
 504                                           struct cfg80211_chan_def *chandef);
 505
 506 void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev);
 507
 508 void cfg80211_background_cac_done_wk(struct work_struct *work);
 509
 510 void cfg80211_background_cac_abort_wk(struct work_struct *work);
 511
 512 bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
 513                                   struct ieee80211_channel *chan);
 514
 515 bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
 516
 517 bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
 518                           struct ieee80211_channel *chan,
 519                           bool primary_only);
 520 bool cfg80211_wdev_on_sub_chan(struct wireless_dev *wdev,
 521                                struct ieee80211_channel *chan,
 522                                bool primary_only);
 523
 524 static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
 525 {
 526         unsigned long end = jiffies;
 527
 528         if (end >= start)
 529                 return jiffies_to_msecs(end - start);
 530
 531         return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
 532 }
 533
 534 int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
 535                                  struct cfg80211_chan_def *chandef);
 536
 537 int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 538                            const u8 *rates, unsigned int n_rates,
 539                            u32 *mask);
 540
 541 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 542                                  enum nl80211_iftype iftype, u32 beacon_int);
 543
 544 void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
 545                                enum nl80211_iftype iftype, int num);
 546
 547 void __cfg80211_leave(struct cfg80211_registered_device *rdev,
 548                       struct wireless_dev *wdev);
 549 void cfg80211_leave(struct cfg80211_registered_device *rdev,
 550                     struct wireless_dev *wdev);
 551
 552 void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
 553                               struct wireless_dev *wdev);
 554
 555 void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
 556                        struct wireless_dev *wdev);
 557
 558 struct cfg80211_internal_bss *
 559 cfg80211_bss_update(struct cfg80211_registered_device *rdev,
 560                     struct cfg80211_internal_bss *tmp,
 561                     bool signal_valid, unsigned long ts);
 562 #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
 563 #define CFG80211_DEV_WARN_ON(cond)      WARN_ON(cond)
 564 #else
 565 /*
 566  * Trick to enable using it as a condition,
 567  * and also not give a warning when it's
 568  * not used that way.
 569  */
 570 #define CFG80211_DEV_WARN_ON(cond)      ({bool __r = (cond); __r; })
 571 #endif
 572
 573 void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
 574 void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
 575 void cfg80211_pmsr_free_wk(struct work_struct *work);
 576
 577 void cfg80211_remove_link(struct wireless_dev *wdev, unsigned int link_id);
 578 void cfg80211_remove_links(struct wireless_dev *wdev);
 579 int cfg80211_remove_virtual_intf(struct cfg80211_registered_device *rdev,
 580                                  struct wireless_dev *wdev);
 581
 582 #endif /* __NET_WIRELESS_CORE_H */