net/mac80211/cfg.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * mac80211 configuration hooks for cfg80211
   4  *
   5  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   6  * Copyright 2013-2015  Intel Mobile Communications GmbH
   7  * Copyright (C) 2015-2017 Intel Deutschland GmbH
   8  * Copyright (C) 2018-2022 Intel Corporation
   9  */
  10
  11 #include <linux/ieee80211.h>
  12 #include <linux/nl80211.h>
  13 #include <linux/rtnetlink.h>
  14 #include <linux/slab.h>
  15 #include <net/net_namespace.h>
  16 #include <linux/rcupdate.h>
  17 #include <linux/fips.h>
  18 #include <linux/if_ether.h>
  19 #include <net/cfg80211.h>
  20 #include "ieee80211_i.h"
  21 #include "driver-ops.h"
  22 #include "rate.h"
  23 #include "mesh.h"
  24 #include "wme.h"
  25
  26 static struct ieee80211_link_data *
  27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id,
  28                           bool require_valid)
  29 {
  30         struct ieee80211_link_data *link;
  31
  32         if (link_id < 0) {
  33                 /*
  34                  * For keys, if sdata is not an MLD, we might not use
  35                  * the return value at all (if it's not a pairwise key),
  36                  * so in that case (require_valid==false) don't error.
  37                  */
  38                 if (require_valid && sdata->vif.valid_links)
  39                         return ERR_PTR(-EINVAL);
  40
  41                 return &sdata->deflink;
  42         }
  43
  44         link = sdata_dereference(sdata->link[link_id], sdata);
  45         if (!link)
  46                 return ERR_PTR(-ENOLINK);
  47         return link;
  48 }
  49
  50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
  51                                          struct vif_params *params)
  52 {
  53         bool mu_mimo_groups = false;
  54         bool mu_mimo_follow = false;
  55
  56         if (params->vht_mumimo_groups) {
  57                 u64 membership;
  58
  59                 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
  60
  61                 memcpy(sdata->vif.bss_conf.mu_group.membership,
  62                        params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
  63                 memcpy(sdata->vif.bss_conf.mu_group.position,
  64                        params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
  65                        WLAN_USER_POSITION_LEN);
  66                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
  67                                                   BSS_CHANGED_MU_GROUPS);
  68                 /* don't care about endianness - just check for 0 */
  69                 memcpy(&membership, params->vht_mumimo_groups,
  70                        WLAN_MEMBERSHIP_LEN);
  71                 mu_mimo_groups = membership != 0;
  72         }
  73
  74         if (params->vht_mumimo_follow_addr) {
  75                 mu_mimo_follow =
  76                         is_valid_ether_addr(params->vht_mumimo_follow_addr);
  77                 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
  78                                 params->vht_mumimo_follow_addr);
  79         }
  80
  81         sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
  82 }
  83
  84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
  85                                      struct vif_params *params)
  86 {
  87         struct ieee80211_local *local = sdata->local;
  88         struct ieee80211_sub_if_data *monitor_sdata;
  89
  90         /* check flags first */
  91         if (params->flags && ieee80211_sdata_running(sdata)) {
  92                 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
  93
  94                 /*
  95                  * Prohibit MONITOR_FLAG_COOK_FRAMES and
  96                  * MONITOR_FLAG_ACTIVE to be changed while the
  97                  * interface is up.
  98                  * Else we would need to add a lot of cruft
  99                  * to update everything:
 100                  *      cooked_mntrs, monitor and all fif_* counters
 101                  *      reconfigure hardware
 102                  */
 103                 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
 104                         return -EBUSY;
 105         }
 106
 107         /* also validate MU-MIMO change */
 108         monitor_sdata = wiphy_dereference(local->hw.wiphy,
 109                                           local->monitor_sdata);
 110
 111         if (!monitor_sdata &&
 112             (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
 113                 return -EOPNOTSUPP;
 114
 115         /* apply all changes now - no failures allowed */
 116
 117         if (monitor_sdata)
 118                 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
 119
 120         if (params->flags) {
 121                 if (ieee80211_sdata_running(sdata)) {
 122                         ieee80211_adjust_monitor_flags(sdata, -1);
 123                         sdata->u.mntr.flags = params->flags;
 124                         ieee80211_adjust_monitor_flags(sdata, 1);
 125
 126                         ieee80211_configure_filter(local);
 127                 } else {
 128                         /*
 129                          * Because the interface is down, ieee80211_do_stop
 130                          * and ieee80211_do_open take care of "everything"
 131                          * mentioned in the comment above.
 132                          */
 133                         sdata->u.mntr.flags = params->flags;
 134                 }
 135         }
 136
 137         return 0;
 138 }
 139
 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
 141                                            struct cfg80211_mbssid_config params,
 142                                            struct ieee80211_bss_conf *link_conf)
 143 {
 144         struct ieee80211_sub_if_data *tx_sdata;
 145
 146         sdata->vif.mbssid_tx_vif = NULL;
 147         link_conf->bssid_index = 0;
 148         link_conf->nontransmitted = false;
 149         link_conf->ema_ap = false;
 150         link_conf->bssid_indicator = 0;
 151
 152         if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev)
 153                 return -EINVAL;
 154
 155         tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev);
 156         if (!tx_sdata)
 157                 return -EINVAL;
 158
 159         if (tx_sdata == sdata) {
 160                 sdata->vif.mbssid_tx_vif = &sdata->vif;
 161         } else {
 162                 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
 163                 link_conf->nontransmitted = true;
 164                 link_conf->bssid_index = params.index;
 165         }
 166         if (params.ema)
 167                 link_conf->ema_ap = true;
 168
 169         return 0;
 170 }
 171
 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
 173                                                 const char *name,
 174                                                 unsigned char name_assign_type,
 175                                                 enum nl80211_iftype type,
 176                                                 struct vif_params *params)
 177 {
 178         struct ieee80211_local *local = wiphy_priv(wiphy);
 179         struct wireless_dev *wdev;
 180         struct ieee80211_sub_if_data *sdata;
 181         int err;
 182
 183         err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
 184         if (err)
 185                 return ERR_PTR(err);
 186
 187         sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 188
 189         if (type == NL80211_IFTYPE_MONITOR) {
 190                 err = ieee80211_set_mon_options(sdata, params);
 191                 if (err) {
 192                         ieee80211_if_remove(sdata);
 193                         return NULL;
 194                 }
 195         }
 196
 197         return wdev;
 198 }
 199
 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 201 {
 202         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
 203
 204         return 0;
 205 }
 206
 207 static int ieee80211_change_iface(struct wiphy *wiphy,
 208                                   struct net_device *dev,
 209                                   enum nl80211_iftype type,
 210                                   struct vif_params *params)
 211 {
 212         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 213         struct ieee80211_local *local = sdata->local;
 214         struct sta_info *sta;
 215         int ret;
 216
 217         ret = ieee80211_if_change_type(sdata, type);
 218         if (ret)
 219                 return ret;
 220
 221         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 222                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 223                 ieee80211_check_fast_rx_iface(sdata);
 224         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 225                 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 226
 227                 if (params->use_4addr == ifmgd->use_4addr)
 228                         return 0;
 229
 230                 /* FIXME: no support for 4-addr MLO yet */
 231                 if (sdata->vif.valid_links)
 232                         return -EOPNOTSUPP;
 233
 234                 sdata->u.mgd.use_4addr = params->use_4addr;
 235                 if (!ifmgd->associated)
 236                         return 0;
 237
 238                 mutex_lock(&local->sta_mtx);
 239                 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
 240                 if (sta)
 241                         drv_sta_set_4addr(local, sdata, &sta->sta,
 242                                           params->use_4addr);
 243                 mutex_unlock(&local->sta_mtx);
 244
 245                 if (params->use_4addr)
 246                         ieee80211_send_4addr_nullfunc(local, sdata);
 247         }
 248
 249         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 250                 ret = ieee80211_set_mon_options(sdata, params);
 251                 if (ret)
 252                         return ret;
 253         }
 254
 255         return 0;
 256 }
 257
 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 259                                       struct wireless_dev *wdev)
 260 {
 261         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 262         int ret;
 263
 264         mutex_lock(&sdata->local->chanctx_mtx);
 265         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 266         mutex_unlock(&sdata->local->chanctx_mtx);
 267         if (ret < 0)
 268                 return ret;
 269
 270         return ieee80211_do_open(wdev, true);
 271 }
 272
 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 274                                       struct wireless_dev *wdev)
 275 {
 276         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 277 }
 278
 279 static int ieee80211_start_nan(struct wiphy *wiphy,
 280                                struct wireless_dev *wdev,
 281                                struct cfg80211_nan_conf *conf)
 282 {
 283         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 284         int ret;
 285
 286         mutex_lock(&sdata->local->chanctx_mtx);
 287         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 288         mutex_unlock(&sdata->local->chanctx_mtx);
 289         if (ret < 0)
 290                 return ret;
 291
 292         ret = ieee80211_do_open(wdev, true);
 293         if (ret)
 294                 return ret;
 295
 296         ret = drv_start_nan(sdata->local, sdata, conf);
 297         if (ret)
 298                 ieee80211_sdata_stop(sdata);
 299
 300         sdata->u.nan.conf = *conf;
 301
 302         return ret;
 303 }
 304
 305 static void ieee80211_stop_nan(struct wiphy *wiphy,
 306                                struct wireless_dev *wdev)
 307 {
 308         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 309
 310         drv_stop_nan(sdata->local, sdata);
 311         ieee80211_sdata_stop(sdata);
 312 }
 313
 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 315                                      struct wireless_dev *wdev,
 316                                      struct cfg80211_nan_conf *conf,
 317                                      u32 changes)
 318 {
 319         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 320         struct cfg80211_nan_conf new_conf;
 321         int ret = 0;
 322
 323         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 324                 return -EOPNOTSUPP;
 325
 326         if (!ieee80211_sdata_running(sdata))
 327                 return -ENETDOWN;
 328
 329         new_conf = sdata->u.nan.conf;
 330
 331         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 332                 new_conf.master_pref = conf->master_pref;
 333
 334         if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 335                 new_conf.bands = conf->bands;
 336
 337         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 338         if (!ret)
 339                 sdata->u.nan.conf = new_conf;
 340
 341         return ret;
 342 }
 343
 344 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 345                                   struct wireless_dev *wdev,
 346                                   struct cfg80211_nan_func *nan_func)
 347 {
 348         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 349         int ret;
 350
 351         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 352                 return -EOPNOTSUPP;
 353
 354         if (!ieee80211_sdata_running(sdata))
 355                 return -ENETDOWN;
 356
 357         spin_lock_bh(&sdata->u.nan.func_lock);
 358
 359         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 360                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 361                         GFP_ATOMIC);
 362         spin_unlock_bh(&sdata->u.nan.func_lock);
 363
 364         if (ret < 0)
 365                 return ret;
 366
 367         nan_func->instance_id = ret;
 368
 369         WARN_ON(nan_func->instance_id == 0);
 370
 371         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 372         if (ret) {
 373                 spin_lock_bh(&sdata->u.nan.func_lock);
 374                 idr_remove(&sdata->u.nan.function_inst_ids,
 375                            nan_func->instance_id);
 376                 spin_unlock_bh(&sdata->u.nan.func_lock);
 377         }
 378
 379         return ret;
 380 }
 381
 382 static struct cfg80211_nan_func *
 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 384                                   u64 cookie)
 385 {
 386         struct cfg80211_nan_func *func;
 387         int id;
 388
 389         lockdep_assert_held(&sdata->u.nan.func_lock);
 390
 391         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 392                 if (func->cookie == cookie)
 393                         return func;
 394         }
 395
 396         return NULL;
 397 }
 398
 399 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 400                                   struct wireless_dev *wdev, u64 cookie)
 401 {
 402         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 403         struct cfg80211_nan_func *func;
 404         u8 instance_id = 0;
 405
 406         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 407             !ieee80211_sdata_running(sdata))
 408                 return;
 409
 410         spin_lock_bh(&sdata->u.nan.func_lock);
 411
 412         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 413         if (func)
 414                 instance_id = func->instance_id;
 415
 416         spin_unlock_bh(&sdata->u.nan.func_lock);
 417
 418         if (instance_id)
 419                 drv_del_nan_func(sdata->local, sdata, instance_id);
 420 }
 421
 422 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 423                                   struct net_device *dev,
 424                                   u16 noack_map)
 425 {
 426         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 427
 428         sdata->noack_map = noack_map;
 429
 430         ieee80211_check_fast_xmit_iface(sdata);
 431
 432         return 0;
 433 }
 434
 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
 436                             const u8 *mac_addr, u8 key_idx)
 437 {
 438         struct ieee80211_local *local = sdata->local;
 439         struct ieee80211_key *key;
 440         struct sta_info *sta;
 441         int ret = -EINVAL;
 442
 443         if (!wiphy_ext_feature_isset(local->hw.wiphy,
 444                                      NL80211_EXT_FEATURE_EXT_KEY_ID))
 445                 return -EINVAL;
 446
 447         sta = sta_info_get_bss(sdata, mac_addr);
 448
 449         if (!sta)
 450                 return -EINVAL;
 451
 452         if (sta->ptk_idx == key_idx)
 453                 return 0;
 454
 455         mutex_lock(&local->key_mtx);
 456         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 457
 458         if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 459                 ret = ieee80211_set_tx_key(key);
 460
 461         mutex_unlock(&local->key_mtx);
 462         return ret;
 463 }
 464
 465 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 466                              int link_id, u8 key_idx, bool pairwise,
 467                              const u8 *mac_addr, struct key_params *params)
 468 {
 469         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 470         struct ieee80211_link_data *link =
 471                 ieee80211_link_or_deflink(sdata, link_id, false);
 472         struct ieee80211_local *local = sdata->local;
 473         struct sta_info *sta = NULL;
 474         struct ieee80211_key *key;
 475         int err;
 476
 477         if (!ieee80211_sdata_running(sdata))
 478                 return -ENETDOWN;
 479
 480         if (IS_ERR(link))
 481                 return PTR_ERR(link);
 482
 483         if (pairwise && params->mode == NL80211_KEY_SET_TX)
 484                 return ieee80211_set_tx(sdata, mac_addr, key_idx);
 485
 486         /* reject WEP and TKIP keys if WEP failed to initialize */
 487         switch (params->cipher) {
 488         case WLAN_CIPHER_SUITE_WEP40:
 489         case WLAN_CIPHER_SUITE_TKIP:
 490         case WLAN_CIPHER_SUITE_WEP104:
 491                 if (link_id >= 0)
 492                         return -EINVAL;
 493                 if (WARN_ON_ONCE(fips_enabled))
 494                         return -EINVAL;
 495                 break;
 496         default:
 497                 break;
 498         }
 499
 500         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 501                                   params->key, params->seq_len, params->seq);
 502         if (IS_ERR(key))
 503                 return PTR_ERR(key);
 504
 505         key->conf.link_id = link_id;
 506
 507         if (pairwise)
 508                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 509
 510         if (params->mode == NL80211_KEY_NO_TX)
 511                 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
 512
 513         mutex_lock(&local->sta_mtx);
 514
 515         if (mac_addr) {
 516                 sta = sta_info_get_bss(sdata, mac_addr);
 517                 /*
 518                  * The ASSOC test makes sure the driver is ready to
 519                  * receive the key. When wpa_supplicant has roamed
 520                  * using FT, it attempts to set the key before
 521                  * association has completed, this rejects that attempt
 522                  * so it will set the key again after association.
 523                  *
 524                  * TODO: accept the key if we have a station entry and
 525                  *       add it to the device after the station.
 526                  */
 527                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 528                         ieee80211_key_free_unused(key);
 529                         err = -ENOENT;
 530                         goto out_unlock;
 531                 }
 532         }
 533
 534         switch (sdata->vif.type) {
 535         case NL80211_IFTYPE_STATION:
 536                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 537                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 538                 break;
 539         case NL80211_IFTYPE_AP:
 540         case NL80211_IFTYPE_AP_VLAN:
 541                 /* Keys without a station are used for TX only */
 542                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 543                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 544                 break;
 545         case NL80211_IFTYPE_ADHOC:
 546                 /* no MFP (yet) */
 547                 break;
 548         case NL80211_IFTYPE_MESH_POINT:
 549 #ifdef CONFIG_MAC80211_MESH
 550                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 551                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 552                 break;
 553 #endif
 554         case NL80211_IFTYPE_WDS:
 555         case NL80211_IFTYPE_MONITOR:
 556         case NL80211_IFTYPE_P2P_DEVICE:
 557         case NL80211_IFTYPE_NAN:
 558         case NL80211_IFTYPE_UNSPECIFIED:
 559         case NUM_NL80211_IFTYPES:
 560         case NL80211_IFTYPE_P2P_CLIENT:
 561         case NL80211_IFTYPE_P2P_GO:
 562         case NL80211_IFTYPE_OCB:
 563                 /* shouldn't happen */
 564                 WARN_ON_ONCE(1);
 565                 break;
 566         }
 567
 568         err = ieee80211_key_link(key, link, sta);
 569
 570  out_unlock:
 571         mutex_unlock(&local->sta_mtx);
 572
 573         return err;
 574 }
 575
 576 static struct ieee80211_key *
 577 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
 578                      u8 key_idx, bool pairwise, const u8 *mac_addr)
 579 {
 580         struct ieee80211_local *local __maybe_unused = sdata->local;
 581         struct ieee80211_link_data *link = &sdata->deflink;
 582         struct ieee80211_key *key;
 583
 584         if (link_id >= 0) {
 585                 link = rcu_dereference_check(sdata->link[link_id],
 586                                              lockdep_is_held(&sdata->wdev.mtx));
 587                 if (!link)
 588                         return NULL;
 589         }
 590
 591         if (mac_addr) {
 592                 struct sta_info *sta;
 593                 struct link_sta_info *link_sta;
 594
 595                 sta = sta_info_get_bss(sdata, mac_addr);
 596                 if (!sta)
 597                         return NULL;
 598
 599                 if (link_id >= 0) {
 600                         link_sta = rcu_dereference_check(sta->link[link_id],
 601                                                          lockdep_is_held(&local->sta_mtx));
 602                         if (!link_sta)
 603                                 return NULL;
 604                 } else {
 605                         link_sta = &sta->deflink;
 606                 }
 607
 608                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 609                         return rcu_dereference_check_key_mtx(local,
 610                                                              sta->ptk[key_idx]);
 611
 612                 if (!pairwise &&
 613                     key_idx < NUM_DEFAULT_KEYS +
 614                               NUM_DEFAULT_MGMT_KEYS +
 615                               NUM_DEFAULT_BEACON_KEYS)
 616                         return rcu_dereference_check_key_mtx(local,
 617                                                              link_sta->gtk[key_idx]);
 618
 619                 return NULL;
 620         }
 621
 622         if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 623                 return rcu_dereference_check_key_mtx(local,
 624                                                      sdata->keys[key_idx]);
 625
 626         key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]);
 627         if (key)
 628                 return key;
 629
 630         /* or maybe it was a WEP key */
 631         if (key_idx < NUM_DEFAULT_KEYS)
 632                 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]);
 633
 634         return NULL;
 635 }
 636
 637 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 638                              int link_id, u8 key_idx, bool pairwise,
 639                              const u8 *mac_addr)
 640 {
 641         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 642         struct ieee80211_local *local = sdata->local;
 643         struct ieee80211_key *key;
 644         int ret;
 645
 646         mutex_lock(&local->sta_mtx);
 647         mutex_lock(&local->key_mtx);
 648
 649         key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
 650         if (!key) {
 651                 ret = -ENOENT;
 652                 goto out_unlock;
 653         }
 654
 655         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 656
 657         ret = 0;
 658  out_unlock:
 659         mutex_unlock(&local->key_mtx);
 660         mutex_unlock(&local->sta_mtx);
 661
 662         return ret;
 663 }
 664
 665 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 666                              int link_id, u8 key_idx, bool pairwise,
 667                              const u8 *mac_addr, void *cookie,
 668                              void (*callback)(void *cookie,
 669                                               struct key_params *params))
 670 {
 671         struct ieee80211_sub_if_data *sdata;
 672         u8 seq[6] = {0};
 673         struct key_params params;
 674         struct ieee80211_key *key;
 675         u64 pn64;
 676         u32 iv32;
 677         u16 iv16;
 678         int err = -ENOENT;
 679         struct ieee80211_key_seq kseq = {};
 680
 681         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 682
 683         rcu_read_lock();
 684
 685         key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
 686         if (!key)
 687                 goto out;
 688
 689         memset(&params, 0, sizeof(params));
 690
 691         params.cipher = key->conf.cipher;
 692
 693         switch (key->conf.cipher) {
 694         case WLAN_CIPHER_SUITE_TKIP:
 695                 pn64 = atomic64_read(&key->conf.tx_pn);
 696                 iv32 = TKIP_PN_TO_IV32(pn64);
 697                 iv16 = TKIP_PN_TO_IV16(pn64);
 698
 699                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 700                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 701                         drv_get_key_seq(sdata->local, key, &kseq);
 702                         iv32 = kseq.tkip.iv32;
 703                         iv16 = kseq.tkip.iv16;
 704                 }
 705
 706                 seq[0] = iv16 & 0xff;
 707                 seq[1] = (iv16 >> 8) & 0xff;
 708                 seq[2] = iv32 & 0xff;
 709                 seq[3] = (iv32 >> 8) & 0xff;
 710                 seq[4] = (iv32 >> 16) & 0xff;
 711                 seq[5] = (iv32 >> 24) & 0xff;
 712                 params.seq = seq;
 713                 params.seq_len = 6;
 714                 break;
 715         case WLAN_CIPHER_SUITE_CCMP:
 716         case WLAN_CIPHER_SUITE_CCMP_256:
 717         case WLAN_CIPHER_SUITE_AES_CMAC:
 718         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 719                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 720                              offsetof(typeof(kseq), aes_cmac));
 721                 fallthrough;
 722         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 723         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 724                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 725                              offsetof(typeof(kseq), aes_gmac));
 726                 fallthrough;
 727         case WLAN_CIPHER_SUITE_GCMP:
 728         case WLAN_CIPHER_SUITE_GCMP_256:
 729                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 730                              offsetof(typeof(kseq), gcmp));
 731
 732                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 733                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 734                         drv_get_key_seq(sdata->local, key, &kseq);
 735                         memcpy(seq, kseq.ccmp.pn, 6);
 736                 } else {
 737                         pn64 = atomic64_read(&key->conf.tx_pn);
 738                         seq[0] = pn64;
 739                         seq[1] = pn64 >> 8;
 740                         seq[2] = pn64 >> 16;
 741                         seq[3] = pn64 >> 24;
 742                         seq[4] = pn64 >> 32;
 743                         seq[5] = pn64 >> 40;
 744                 }
 745                 params.seq = seq;
 746                 params.seq_len = 6;
 747                 break;
 748         default:
 749                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 750                         break;
 751                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 752                         break;
 753                 drv_get_key_seq(sdata->local, key, &kseq);
 754                 params.seq = kseq.hw.seq;
 755                 params.seq_len = kseq.hw.seq_len;
 756                 break;
 757         }
 758
 759         params.key = key->conf.key;
 760         params.key_len = key->conf.keylen;
 761
 762         callback(cookie, &params);
 763         err = 0;
 764
 765  out:
 766         rcu_read_unlock();
 767         return err;
 768 }
 769
 770 static int ieee80211_config_default_key(struct wiphy *wiphy,
 771                                         struct net_device *dev,
 772                                         int link_id, u8 key_idx, bool uni,
 773                                         bool multi)
 774 {
 775         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 776         struct ieee80211_link_data *link =
 777                 ieee80211_link_or_deflink(sdata, link_id, false);
 778
 779         if (IS_ERR(link))
 780                 return PTR_ERR(link);
 781
 782         ieee80211_set_default_key(link, key_idx, uni, multi);
 783
 784         return 0;
 785 }
 786
 787 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 788                                              struct net_device *dev,
 789                                              int link_id, u8 key_idx)
 790 {
 791         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 792         struct ieee80211_link_data *link =
 793                 ieee80211_link_or_deflink(sdata, link_id, true);
 794
 795         if (IS_ERR(link))
 796                 return PTR_ERR(link);
 797
 798         ieee80211_set_default_mgmt_key(link, key_idx);
 799
 800         return 0;
 801 }
 802
 803 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
 804                                                struct net_device *dev,
 805                                                int link_id, u8 key_idx)
 806 {
 807         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 808         struct ieee80211_link_data *link =
 809                 ieee80211_link_or_deflink(sdata, link_id, true);
 810
 811         if (IS_ERR(link))
 812                 return PTR_ERR(link);
 813
 814         ieee80211_set_default_beacon_key(link, key_idx);
 815
 816         return 0;
 817 }
 818
 819 void sta_set_rate_info_tx(struct sta_info *sta,
 820                           const struct ieee80211_tx_rate *rate,
 821                           struct rate_info *rinfo)
 822 {
 823         rinfo->flags = 0;
 824         if (rate->flags & IEEE80211_TX_RC_MCS) {
 825                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 826                 rinfo->mcs = rate->idx;
 827         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 828                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 829                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 830                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 831         } else {
 832                 struct ieee80211_supported_band *sband;
 833                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 834                 u16 brate;
 835
 836                 sband = ieee80211_get_sband(sta->sdata);
 837                 WARN_ON_ONCE(sband && !sband->bitrates);
 838                 if (sband && sband->bitrates) {
 839                         brate = sband->bitrates[rate->idx].bitrate;
 840                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 841                 }
 842         }
 843         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 844                 rinfo->bw = RATE_INFO_BW_40;
 845         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 846                 rinfo->bw = RATE_INFO_BW_80;
 847         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 848                 rinfo->bw = RATE_INFO_BW_160;
 849         else
 850                 rinfo->bw = RATE_INFO_BW_20;
 851         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 852                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 853 }
 854
 855 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 856                                   int idx, u8 *mac, struct station_info *sinfo)
 857 {
 858         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 859         struct ieee80211_local *local = sdata->local;
 860         struct sta_info *sta;
 861         int ret = -ENOENT;
 862
 863         mutex_lock(&local->sta_mtx);
 864
 865         sta = sta_info_get_by_idx(sdata, idx);
 866         if (sta) {
 867                 ret = 0;
 868                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 869                 sta_set_sinfo(sta, sinfo, true);
 870         }
 871
 872         mutex_unlock(&local->sta_mtx);
 873
 874         return ret;
 875 }
 876
 877 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 878                                  int idx, struct survey_info *survey)
 879 {
 880         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 881
 882         return drv_get_survey(local, idx, survey);
 883 }
 884
 885 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 886                                  const u8 *mac, struct station_info *sinfo)
 887 {
 888         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 889         struct ieee80211_local *local = sdata->local;
 890         struct sta_info *sta;
 891         int ret = -ENOENT;
 892
 893         mutex_lock(&local->sta_mtx);
 894
 895         sta = sta_info_get_bss(sdata, mac);
 896         if (sta) {
 897                 ret = 0;
 898                 sta_set_sinfo(sta, sinfo, true);
 899         }
 900
 901         mutex_unlock(&local->sta_mtx);
 902
 903         return ret;
 904 }
 905
 906 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 907                                          struct cfg80211_chan_def *chandef)
 908 {
 909         struct ieee80211_local *local = wiphy_priv(wiphy);
 910         struct ieee80211_sub_if_data *sdata;
 911         int ret = 0;
 912
 913         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 914                 return 0;
 915
 916         mutex_lock(&local->mtx);
 917         if (local->use_chanctx) {
 918                 sdata = wiphy_dereference(local->hw.wiphy,
 919                                           local->monitor_sdata);
 920                 if (sdata) {
 921                         ieee80211_link_release_channel(&sdata->deflink);
 922                         ret = ieee80211_link_use_channel(&sdata->deflink,
 923                                                          chandef,
 924                                                          IEEE80211_CHANCTX_EXCLUSIVE);
 925                 }
 926         } else if (local->open_count == local->monitors) {
 927                 local->_oper_chandef = *chandef;
 928                 ieee80211_hw_config(local, 0);
 929         }
 930
 931         if (ret == 0)
 932                 local->monitor_chandef = *chandef;
 933         mutex_unlock(&local->mtx);
 934
 935         return ret;
 936 }
 937
 938 static int
 939 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 940                          const u8 *resp, size_t resp_len,
 941                          const struct ieee80211_csa_settings *csa,
 942                          const struct ieee80211_color_change_settings *cca,
 943                          struct ieee80211_link_data *link)
 944 {
 945         struct probe_resp *new, *old;
 946
 947         if (!resp || !resp_len)
 948                 return 1;
 949
 950         old = sdata_dereference(link->u.ap.probe_resp, sdata);
 951
 952         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 953         if (!new)
 954                 return -ENOMEM;
 955
 956         new->len = resp_len;
 957         memcpy(new->data, resp, resp_len);
 958
 959         if (csa)
 960                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 961                        csa->n_counter_offsets_presp *
 962                        sizeof(new->cntdwn_counter_offsets[0]));
 963         else if (cca)
 964                 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
 965
 966         rcu_assign_pointer(link->u.ap.probe_resp, new);
 967         if (old)
 968                 kfree_rcu(old, rcu_head);
 969
 970         return 0;
 971 }
 972
 973 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 974                                         struct cfg80211_fils_discovery *params,
 975                                         struct ieee80211_link_data *link,
 976                                         struct ieee80211_bss_conf *link_conf)
 977 {
 978         struct fils_discovery_data *new, *old = NULL;
 979         struct ieee80211_fils_discovery *fd;
 980
 981         if (!params->tmpl || !params->tmpl_len)
 982                 return -EINVAL;
 983
 984         fd = &link_conf->fils_discovery;
 985         fd->min_interval = params->min_interval;
 986         fd->max_interval = params->max_interval;
 987
 988         old = sdata_dereference(link->u.ap.fils_discovery, sdata);
 989         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 990         if (!new)
 991                 return -ENOMEM;
 992         new->len = params->tmpl_len;
 993         memcpy(new->data, params->tmpl, params->tmpl_len);
 994         rcu_assign_pointer(link->u.ap.fils_discovery, new);
 995
 996         if (old)
 997                 kfree_rcu(old, rcu_head);
 998
 999         return 0;
1000 }
1001
1002 static int
1003 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
1004                                      struct cfg80211_unsol_bcast_probe_resp *params,
1005                                      struct ieee80211_link_data *link,
1006                                      struct ieee80211_bss_conf *link_conf)
1007 {
1008         struct unsol_bcast_probe_resp_data *new, *old = NULL;
1009
1010         if (!params->tmpl || !params->tmpl_len)
1011                 return -EINVAL;
1012
1013         old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
1014         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1015         if (!new)
1016                 return -ENOMEM;
1017         new->len = params->tmpl_len;
1018         memcpy(new->data, params->tmpl, params->tmpl_len);
1019         rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1020
1021         if (old)
1022                 kfree_rcu(old, rcu_head);
1023
1024         link_conf->unsol_bcast_probe_resp_interval = params->interval;
1025
1026         return 0;
1027 }
1028
1029 static int ieee80211_set_ftm_responder_params(
1030                                 struct ieee80211_sub_if_data *sdata,
1031                                 const u8 *lci, size_t lci_len,
1032                                 const u8 *civicloc, size_t civicloc_len,
1033                                 struct ieee80211_bss_conf *link_conf)
1034 {
1035         struct ieee80211_ftm_responder_params *new, *old;
1036         u8 *pos;
1037         int len;
1038
1039         if (!lci_len && !civicloc_len)
1040                 return 0;
1041
1042         old = link_conf->ftmr_params;
1043         len = lci_len + civicloc_len;
1044
1045         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
1046         if (!new)
1047                 return -ENOMEM;
1048
1049         pos = (u8 *)(new + 1);
1050         if (lci_len) {
1051                 new->lci_len = lci_len;
1052                 new->lci = pos;
1053                 memcpy(pos, lci, lci_len);
1054                 pos += lci_len;
1055         }
1056
1057         if (civicloc_len) {
1058                 new->civicloc_len = civicloc_len;
1059                 new->civicloc = pos;
1060                 memcpy(pos, civicloc, civicloc_len);
1061                 pos += civicloc_len;
1062         }
1063
1064         link_conf->ftmr_params = new;
1065         kfree(old);
1066
1067         return 0;
1068 }
1069
1070 static int
1071 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1072                              struct cfg80211_mbssid_elems *src)
1073 {
1074         int i, offset = 0;
1075
1076         for (i = 0; i < src->cnt; i++) {
1077                 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1078                 dst->elem[i].len = src->elem[i].len;
1079                 dst->elem[i].data = pos + offset;
1080                 offset += dst->elem[i].len;
1081         }
1082         dst->cnt = src->cnt;
1083
1084         return offset;
1085 }
1086
1087 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1088                                    struct ieee80211_link_data *link,
1089                                    struct cfg80211_beacon_data *params,
1090                                    const struct ieee80211_csa_settings *csa,
1091                                    const struct ieee80211_color_change_settings *cca)
1092 {
1093         struct cfg80211_mbssid_elems *mbssid = NULL;
1094         struct beacon_data *new, *old;
1095         int new_head_len, new_tail_len;
1096         int size, err;
1097         u32 changed = BSS_CHANGED_BEACON;
1098         struct ieee80211_bss_conf *link_conf = link->conf;
1099
1100         old = sdata_dereference(link->u.ap.beacon, sdata);
1101
1102         /* Need to have a beacon head if we don't have one yet */
1103         if (!params->head && !old)
1104                 return -EINVAL;
1105
1106         /* new or old head? */
1107         if (params->head)
1108                 new_head_len = params->head_len;
1109         else
1110                 new_head_len = old->head_len;
1111
1112         /* new or old tail? */
1113         if (params->tail || !old)
1114                 /* params->tail_len will be zero for !params->tail */
1115                 new_tail_len = params->tail_len;
1116         else
1117                 new_tail_len = old->tail_len;
1118
1119         size = sizeof(*new) + new_head_len + new_tail_len;
1120
1121         /* new or old multiple BSSID elements? */
1122         if (params->mbssid_ies) {
1123                 mbssid = params->mbssid_ies;
1124                 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1125                 size += ieee80211_get_mbssid_beacon_len(mbssid);
1126         } else if (old && old->mbssid_ies) {
1127                 mbssid = old->mbssid_ies;
1128                 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1129                 size += ieee80211_get_mbssid_beacon_len(mbssid);
1130         }
1131
1132         new = kzalloc(size, GFP_KERNEL);
1133         if (!new)
1134                 return -ENOMEM;
1135
1136         /* start filling the new info now */
1137
1138         /*
1139          * pointers go into the block we allocated,
1140          * memory is | beacon_data | head | tail | mbssid_ies
1141          */
1142         new->head = ((u8 *) new) + sizeof(*new);
1143         new->tail = new->head + new_head_len;
1144         new->head_len = new_head_len;
1145         new->tail_len = new_tail_len;
1146         /* copy in optional mbssid_ies */
1147         if (mbssid) {
1148                 u8 *pos = new->tail + new->tail_len;
1149
1150                 new->mbssid_ies = (void *)pos;
1151                 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1152                 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid);
1153                 /* update bssid_indicator */
1154                 link_conf->bssid_indicator =
1155                         ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1156         }
1157
1158         if (csa) {
1159                 new->cntdwn_current_counter = csa->count;
1160                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1161                        csa->n_counter_offsets_beacon *
1162                        sizeof(new->cntdwn_counter_offsets[0]));
1163         } else if (cca) {
1164                 new->cntdwn_current_counter = cca->count;
1165                 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1166         }
1167
1168         /* copy in head */
1169         if (params->head)
1170                 memcpy(new->head, params->head, new_head_len);
1171         else
1172                 memcpy(new->head, old->head, new_head_len);
1173
1174         /* copy in optional tail */
1175         if (params->tail)
1176                 memcpy(new->tail, params->tail, new_tail_len);
1177         else
1178                 if (old)
1179                         memcpy(new->tail, old->tail, new_tail_len);
1180
1181         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1182                                        params->probe_resp_len, csa, cca, link);
1183         if (err < 0) {
1184                 kfree(new);
1185                 return err;
1186         }
1187         if (err == 0)
1188                 changed |= BSS_CHANGED_AP_PROBE_RESP;
1189
1190         if (params->ftm_responder != -1) {
1191                 link_conf->ftm_responder = params->ftm_responder;
1192                 err = ieee80211_set_ftm_responder_params(sdata,
1193                                                          params->lci,
1194                                                          params->lci_len,
1195                                                          params->civicloc,
1196                                                          params->civicloc_len,
1197                                                          link_conf);
1198
1199                 if (err < 0) {
1200                         kfree(new);
1201                         return err;
1202                 }
1203
1204                 changed |= BSS_CHANGED_FTM_RESPONDER;
1205         }
1206
1207         rcu_assign_pointer(link->u.ap.beacon, new);
1208         sdata->u.ap.active = true;
1209
1210         if (old)
1211                 kfree_rcu(old, rcu_head);
1212
1213         return changed;
1214 }
1215
1216 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1217                               struct cfg80211_ap_settings *params)
1218 {
1219         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1220         struct ieee80211_local *local = sdata->local;
1221         struct beacon_data *old;
1222         struct ieee80211_sub_if_data *vlan;
1223         u64 changed = BSS_CHANGED_BEACON_INT |
1224                       BSS_CHANGED_BEACON_ENABLED |
1225                       BSS_CHANGED_BEACON |
1226                       BSS_CHANGED_P2P_PS |
1227                       BSS_CHANGED_TXPOWER |
1228                       BSS_CHANGED_TWT;
1229         int i, err;
1230         int prev_beacon_int;
1231         unsigned int link_id = params->beacon.link_id;
1232         struct ieee80211_link_data *link;
1233         struct ieee80211_bss_conf *link_conf;
1234
1235         link = sdata_dereference(sdata->link[link_id], sdata);
1236         if (!link)
1237                 return -ENOLINK;
1238
1239         link_conf = link->conf;
1240
1241         old = sdata_dereference(link->u.ap.beacon, sdata);
1242         if (old)
1243                 return -EALREADY;
1244
1245         if (params->smps_mode != NL80211_SMPS_OFF)
1246                 return -ENOTSUPP;
1247
1248         link->smps_mode = IEEE80211_SMPS_OFF;
1249
1250         link->needed_rx_chains = sdata->local->rx_chains;
1251
1252         prev_beacon_int = link_conf->beacon_int;
1253         link_conf->beacon_int = params->beacon_interval;
1254
1255         if (params->vht_cap) {
1256                 link_conf->vht_su_beamformer =
1257                         params->vht_cap->vht_cap_info &
1258                                 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1259                 link_conf->vht_su_beamformee =
1260                         params->vht_cap->vht_cap_info &
1261                                 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1262                 link_conf->vht_mu_beamformer =
1263                         params->vht_cap->vht_cap_info &
1264                                 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1265                 link_conf->vht_mu_beamformee =
1266                         params->vht_cap->vht_cap_info &
1267                                 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1268         }
1269
1270         if (params->he_cap && params->he_oper) {
1271                 link_conf->he_support = true;
1272                 link_conf->htc_trig_based_pkt_ext =
1273                         le32_get_bits(params->he_oper->he_oper_params,
1274                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1275                 link_conf->frame_time_rts_th =
1276                         le32_get_bits(params->he_oper->he_oper_params,
1277                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1278                 changed |= BSS_CHANGED_HE_OBSS_PD;
1279
1280                 if (params->beacon.he_bss_color.enabled)
1281                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1282         }
1283
1284         if (params->he_cap) {
1285                 link_conf->he_su_beamformer =
1286                         params->he_cap->phy_cap_info[3] &
1287                                 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1288                 link_conf->he_su_beamformee =
1289                         params->he_cap->phy_cap_info[4] &
1290                                 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1291                 link_conf->he_mu_beamformer =
1292                         params->he_cap->phy_cap_info[4] &
1293                                 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1294                 link_conf->he_full_ul_mumimo =
1295                         params->he_cap->phy_cap_info[2] &
1296                                 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1297         }
1298
1299         if (params->eht_cap) {
1300                 link_conf->eht_puncturing = params->punct_bitmap;
1301                 changed |= BSS_CHANGED_EHT_PUNCTURING;
1302         }
1303
1304         if (sdata->vif.type == NL80211_IFTYPE_AP &&
1305             params->mbssid_config.tx_wdev) {
1306                 err = ieee80211_set_ap_mbssid_options(sdata,
1307                                                       params->mbssid_config,
1308                                                       link_conf);
1309                 if (err)
1310                         return err;
1311         }
1312
1313         mutex_lock(&local->mtx);
1314         err = ieee80211_link_use_channel(link, &params->chandef,
1315                                          IEEE80211_CHANCTX_SHARED);
1316         if (!err)
1317                 ieee80211_link_copy_chanctx_to_vlans(link, false);
1318         mutex_unlock(&local->mtx);
1319         if (err) {
1320                 link_conf->beacon_int = prev_beacon_int;
1321                 return err;
1322         }
1323
1324         /*
1325          * Apply control port protocol, this allows us to
1326          * not encrypt dynamic WEP control frames.
1327          */
1328         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1329         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1330         sdata->control_port_over_nl80211 =
1331                                 params->crypto.control_port_over_nl80211;
1332         sdata->control_port_no_preauth =
1333                                 params->crypto.control_port_no_preauth;
1334
1335         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1336                 vlan->control_port_protocol =
1337                         params->crypto.control_port_ethertype;
1338                 vlan->control_port_no_encrypt =
1339                         params->crypto.control_port_no_encrypt;
1340                 vlan->control_port_over_nl80211 =
1341                         params->crypto.control_port_over_nl80211;
1342                 vlan->control_port_no_preauth =
1343                         params->crypto.control_port_no_preauth;
1344         }
1345
1346         link_conf->dtim_period = params->dtim_period;
1347         link_conf->enable_beacon = true;
1348         link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1349         link_conf->twt_responder = params->twt_responder;
1350         link_conf->he_obss_pd = params->he_obss_pd;
1351         link_conf->he_bss_color = params->beacon.he_bss_color;
1352         sdata->vif.cfg.s1g = params->chandef.chan->band ==
1353                                   NL80211_BAND_S1GHZ;
1354
1355         sdata->vif.cfg.ssid_len = params->ssid_len;
1356         if (params->ssid_len)
1357                 memcpy(sdata->vif.cfg.ssid, params->ssid,
1358                        params->ssid_len);
1359         link_conf->hidden_ssid =
1360                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1361
1362         memset(&link_conf->p2p_noa_attr, 0,
1363                sizeof(link_conf->p2p_noa_attr));
1364         link_conf->p2p_noa_attr.oppps_ctwindow =
1365                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1366         if (params->p2p_opp_ps)
1367                 link_conf->p2p_noa_attr.oppps_ctwindow |=
1368                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1369
1370         sdata->beacon_rate_set = false;
1371         if (wiphy_ext_feature_isset(local->hw.wiphy,
1372                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1373                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1374                         sdata->beacon_rateidx_mask[i] =
1375                                 params->beacon_rate.control[i].legacy;
1376                         if (sdata->beacon_rateidx_mask[i])
1377                                 sdata->beacon_rate_set = true;
1378                 }
1379         }
1380
1381         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1382                 link_conf->beacon_tx_rate = params->beacon_rate;
1383
1384         err = ieee80211_assign_beacon(sdata, link, &params->beacon, NULL, NULL);
1385         if (err < 0)
1386                 goto error;
1387         changed |= err;
1388
1389         if (params->fils_discovery.max_interval) {
1390                 err = ieee80211_set_fils_discovery(sdata,
1391                                                    &params->fils_discovery,
1392                                                    link, link_conf);
1393                 if (err < 0)
1394                         goto error;
1395                 changed |= BSS_CHANGED_FILS_DISCOVERY;
1396         }
1397
1398         if (params->unsol_bcast_probe_resp.interval) {
1399                 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1400                                                            &params->unsol_bcast_probe_resp,
1401                                                            link, link_conf);
1402                 if (err < 0)
1403                         goto error;
1404                 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1405         }
1406
1407         err = drv_start_ap(sdata->local, sdata, link_conf);
1408         if (err) {
1409                 old = sdata_dereference(link->u.ap.beacon, sdata);
1410
1411                 if (old)
1412                         kfree_rcu(old, rcu_head);
1413                 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1414                 sdata->u.ap.active = false;
1415                 goto error;
1416         }
1417
1418         ieee80211_recalc_dtim(local, sdata);
1419         ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1420         ieee80211_link_info_change_notify(sdata, link, changed);
1421
1422         netif_carrier_on(dev);
1423         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1424                 netif_carrier_on(vlan->dev);
1425
1426         return 0;
1427
1428 error:
1429         mutex_lock(&local->mtx);
1430         ieee80211_link_release_channel(link);
1431         mutex_unlock(&local->mtx);
1432
1433         return err;
1434 }
1435
1436 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1437                                    struct cfg80211_beacon_data *params)
1438 {
1439         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1440         struct ieee80211_link_data *link;
1441         struct beacon_data *old;
1442         int err;
1443         struct ieee80211_bss_conf *link_conf;
1444
1445         sdata_assert_lock(sdata);
1446
1447         link = sdata_dereference(sdata->link[params->link_id], sdata);
1448         if (!link)
1449                 return -ENOLINK;
1450
1451         link_conf = link->conf;
1452
1453         /* don't allow changing the beacon while a countdown is in place - offset
1454          * of channel switch counter may change
1455          */
1456         if (link_conf->csa_active || link_conf->color_change_active)
1457                 return -EBUSY;
1458
1459         old = sdata_dereference(link->u.ap.beacon, sdata);
1460         if (!old)
1461                 return -ENOENT;
1462
1463         err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL);
1464         if (err < 0)
1465                 return err;
1466
1467         if (params->he_bss_color_valid &&
1468             params->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1469                 link_conf->he_bss_color.enabled = params->he_bss_color.enabled;
1470                 err |= BSS_CHANGED_HE_BSS_COLOR;
1471         }
1472
1473         ieee80211_link_info_change_notify(sdata, link, err);
1474         return 0;
1475 }
1476
1477 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1478 {
1479         if (!link->u.ap.next_beacon)
1480                 return;
1481
1482         kfree(link->u.ap.next_beacon->mbssid_ies);
1483         kfree(link->u.ap.next_beacon);
1484         link->u.ap.next_beacon = NULL;
1485 }
1486
1487 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1488                              unsigned int link_id)
1489 {
1490         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1491         struct ieee80211_sub_if_data *vlan;
1492         struct ieee80211_local *local = sdata->local;
1493         struct beacon_data *old_beacon;
1494         struct probe_resp *old_probe_resp;
1495         struct fils_discovery_data *old_fils_discovery;
1496         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1497         struct cfg80211_chan_def chandef;
1498         struct ieee80211_link_data *link =
1499                 sdata_dereference(sdata->link[link_id], sdata);
1500         struct ieee80211_bss_conf *link_conf = link->conf;
1501
1502         sdata_assert_lock(sdata);
1503
1504         old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1505         if (!old_beacon)
1506                 return -ENOENT;
1507         old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1508                                            sdata);
1509         old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1510                                                sdata);
1511         old_unsol_bcast_probe_resp =
1512                 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1513                                   sdata);
1514
1515         /* abort any running channel switch */
1516         mutex_lock(&local->mtx);
1517         link_conf->csa_active = false;
1518         if (link->csa_block_tx) {
1519                 ieee80211_wake_vif_queues(local, sdata,
1520                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1521                 link->csa_block_tx = false;
1522         }
1523
1524         mutex_unlock(&local->mtx);
1525
1526         ieee80211_free_next_beacon(link);
1527
1528         /* turn off carrier for this interface and dependent VLANs */
1529         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1530                 netif_carrier_off(vlan->dev);
1531         netif_carrier_off(dev);
1532
1533         /* remove beacon and probe response */
1534         sdata->u.ap.active = false;
1535         RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1536         RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1537         RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1538         RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1539         kfree_rcu(old_beacon, rcu_head);
1540         if (old_probe_resp)
1541                 kfree_rcu(old_probe_resp, rcu_head);
1542         if (old_fils_discovery)
1543                 kfree_rcu(old_fils_discovery, rcu_head);
1544         if (old_unsol_bcast_probe_resp)
1545                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1546
1547         kfree(link_conf->ftmr_params);
1548         link_conf->ftmr_params = NULL;
1549
1550         sdata->vif.mbssid_tx_vif = NULL;
1551         link_conf->bssid_index = 0;
1552         link_conf->nontransmitted = false;
1553         link_conf->ema_ap = false;
1554         link_conf->bssid_indicator = 0;
1555
1556         __sta_info_flush(sdata, true);
1557         ieee80211_free_keys(sdata, true);
1558
1559         link_conf->enable_beacon = false;
1560         sdata->beacon_rate_set = false;
1561         sdata->vif.cfg.ssid_len = 0;
1562         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1563         ieee80211_link_info_change_notify(sdata, link,
1564                                           BSS_CHANGED_BEACON_ENABLED);
1565
1566         if (sdata->wdev.cac_started) {
1567                 chandef = link_conf->chandef;
1568                 cancel_delayed_work_sync(&link->dfs_cac_timer_work);
1569                 cfg80211_cac_event(sdata->dev, &chandef,
1570                                    NL80211_RADAR_CAC_ABORTED,
1571                                    GFP_KERNEL);
1572         }
1573
1574         drv_stop_ap(sdata->local, sdata, link_conf);
1575
1576         /* free all potentially still buffered bcast frames */
1577         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1578         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1579
1580         mutex_lock(&local->mtx);
1581         ieee80211_link_copy_chanctx_to_vlans(link, true);
1582         ieee80211_link_release_channel(link);
1583         mutex_unlock(&local->mtx);
1584
1585         return 0;
1586 }
1587
1588 static int sta_apply_auth_flags(struct ieee80211_local *local,
1589                                 struct sta_info *sta,
1590                                 u32 mask, u32 set)
1591 {
1592         int ret;
1593
1594         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1595             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1596             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1597                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1598                 if (ret)
1599                         return ret;
1600         }
1601
1602         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1603             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1604             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1605                 /*
1606                  * When peer becomes associated, init rate control as
1607                  * well. Some drivers require rate control initialized
1608                  * before drv_sta_state() is called.
1609                  */
1610                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1611                         rate_control_rate_init(sta);
1612
1613                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1614                 if (ret)
1615                         return ret;
1616         }
1617
1618         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1619                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1620                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1621                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1622                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1623                 else
1624                         ret = 0;
1625                 if (ret)
1626                         return ret;
1627         }
1628
1629         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1630             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1631             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1632                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1633                 if (ret)
1634                         return ret;
1635         }
1636
1637         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1638             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1639             test_sta_flag(sta, WLAN_STA_AUTH)) {
1640                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1641                 if (ret)
1642                         return ret;
1643         }
1644
1645         return 0;
1646 }
1647
1648 static void sta_apply_mesh_params(struct ieee80211_local *local,
1649                                   struct sta_info *sta,
1650                                   struct station_parameters *params)
1651 {
1652 #ifdef CONFIG_MAC80211_MESH
1653         struct ieee80211_sub_if_data *sdata = sta->sdata;
1654         u32 changed = 0;
1655
1656         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1657                 switch (params->plink_state) {
1658                 case NL80211_PLINK_ESTAB:
1659                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1660                                 changed = mesh_plink_inc_estab_count(sdata);
1661                         sta->mesh->plink_state = params->plink_state;
1662                         sta->mesh->aid = params->peer_aid;
1663
1664                         ieee80211_mps_sta_status_update(sta);
1665                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1666                                       sdata->u.mesh.mshcfg.power_mode);
1667
1668                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1669                         /* init at low value */
1670                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1671
1672                         break;
1673                 case NL80211_PLINK_LISTEN:
1674                 case NL80211_PLINK_BLOCKED:
1675                 case NL80211_PLINK_OPN_SNT:
1676                 case NL80211_PLINK_OPN_RCVD:
1677                 case NL80211_PLINK_CNF_RCVD:
1678                 case NL80211_PLINK_HOLDING:
1679                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1680                                 changed = mesh_plink_dec_estab_count(sdata);
1681                         sta->mesh->plink_state = params->plink_state;
1682
1683                         ieee80211_mps_sta_status_update(sta);
1684                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1685                                         NL80211_MESH_POWER_UNKNOWN);
1686                         break;
1687                 default:
1688                         /*  nothing  */
1689                         break;
1690                 }
1691         }
1692
1693         switch (params->plink_action) {
1694         case NL80211_PLINK_ACTION_NO_ACTION:
1695                 /* nothing */
1696                 break;
1697         case NL80211_PLINK_ACTION_OPEN:
1698                 changed |= mesh_plink_open(sta);
1699                 break;
1700         case NL80211_PLINK_ACTION_BLOCK:
1701                 changed |= mesh_plink_block(sta);
1702                 break;
1703         }
1704
1705         if (params->local_pm)
1706                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1707                                                           params->local_pm);
1708
1709         ieee80211_mbss_info_change_notify(sdata, changed);
1710 #endif
1711 }
1712
1713 static int sta_link_apply_parameters(struct ieee80211_local *local,
1714                                      struct sta_info *sta, bool new_link,
1715                                      struct link_station_parameters *params)
1716 {
1717         int ret = 0;
1718         struct ieee80211_supported_band *sband;
1719         struct ieee80211_sub_if_data *sdata = sta->sdata;
1720         u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1721         struct ieee80211_link_data *link =
1722                 sdata_dereference(sdata->link[link_id], sdata);
1723         struct link_sta_info *link_sta =
1724                 rcu_dereference_protected(sta->link[link_id],
1725                                           lockdep_is_held(&local->sta_mtx));
1726
1727         /*
1728          * If there are no changes, then accept a link that doesn't exist,
1729          * unless it's a new link.
1730          */
1731         if (params->link_id < 0 && !new_link &&
1732             !params->link_mac && !params->txpwr_set &&
1733             !params->supported_rates_len &&
1734             !params->ht_capa && !params->vht_capa &&
1735             !params->he_capa && !params->eht_capa &&
1736             !params->opmode_notif_used)
1737                 return 0;
1738
1739         if (!link || !link_sta)
1740                 return -EINVAL;
1741
1742         sband = ieee80211_get_link_sband(link);
1743         if (!sband)
1744                 return -EINVAL;
1745
1746         if (params->link_mac) {
1747                 if (new_link) {
1748                         memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1749                         memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1750                 } else if (!ether_addr_equal(link_sta->addr,
1751                                              params->link_mac)) {
1752                         return -EINVAL;
1753                 }
1754         } else if (new_link) {
1755                 return -EINVAL;
1756         }
1757
1758         if (params->txpwr_set) {
1759                 link_sta->pub->txpwr.type = params->txpwr.type;
1760                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1761                         link_sta->pub->txpwr.power = params->txpwr.power;
1762                 ret = drv_sta_set_txpwr(local, sdata, sta);
1763                 if (ret)
1764                         return ret;
1765         }
1766
1767         if (params->supported_rates &&
1768             params->supported_rates_len) {
1769                 ieee80211_parse_bitrates(link->conf->chandef.width,
1770                                          sband, params->supported_rates,
1771                                          params->supported_rates_len,
1772                                          &link_sta->pub->supp_rates[sband->band]);
1773         }
1774
1775         if (params->ht_capa)
1776                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1777                                                   params->ht_capa, link_sta);
1778
1779         /* VHT can override some HT caps such as the A-MSDU max length */
1780         if (params->vht_capa)
1781                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1782                                                     params->vht_capa, link_sta);
1783
1784         if (params->he_capa)
1785                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1786                                                   (void *)params->he_capa,
1787                                                   params->he_capa_len,
1788                                                   (void *)params->he_6ghz_capa,
1789                                                   link_sta);
1790
1791         if (params->eht_capa)
1792                 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1793                                                     (u8 *)params->he_capa,
1794                                                     params->he_capa_len,
1795                                                     params->eht_capa,
1796                                                     params->eht_capa_len,
1797                                                     link_sta);
1798
1799         if (params->opmode_notif_used) {
1800                 /* returned value is only needed for rc update, but the
1801                  * rc isn't initialized here yet, so ignore it
1802                  */
1803                 __ieee80211_vht_handle_opmode(sdata, link_sta,
1804                                               params->opmode_notif,
1805                                               sband->band);
1806         }
1807
1808         return ret;
1809 }
1810
1811 static int sta_apply_parameters(struct ieee80211_local *local,
1812                                 struct sta_info *sta,
1813                                 struct station_parameters *params)
1814 {
1815         struct ieee80211_sub_if_data *sdata = sta->sdata;
1816         u32 mask, set;
1817         int ret = 0;
1818
1819         mask = params->sta_flags_mask;
1820         set = params->sta_flags_set;
1821
1822         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1823                 /*
1824                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1825                  * API but must follow AUTHENTICATED for driver state.
1826                  */
1827                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1828                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1829                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1830                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1831         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1832                 /*
1833                  * TDLS -- everything follows authorized, but
1834                  * only becoming authorized is possible, not
1835                  * going back
1836                  */
1837                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1838                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1839                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1840                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1841                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1842                 }
1843         }
1844
1845         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1846             local->hw.queues >= IEEE80211_NUM_ACS)
1847                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1848
1849         /* auth flags will be set later for TDLS,
1850          * and for unassociated stations that move to associated */
1851         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1852             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1853               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1854                 ret = sta_apply_auth_flags(local, sta, mask, set);
1855                 if (ret)
1856                         return ret;
1857         }
1858
1859         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1860                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1861                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1862                 else
1863                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1864         }
1865
1866         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1867                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1868                 if (set & BIT(NL80211_STA_FLAG_MFP))
1869                         set_sta_flag(sta, WLAN_STA_MFP);
1870                 else
1871                         clear_sta_flag(sta, WLAN_STA_MFP);
1872         }
1873
1874         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1875                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1876                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1877                 else
1878                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1879         }
1880
1881         /* mark TDLS channel switch support, if the AP allows it */
1882         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1883             !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
1884             params->ext_capab_len >= 4 &&
1885             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1886                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1887
1888         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1889             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1890             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1891             params->ext_capab_len >= 8 &&
1892             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1893                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1894
1895         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1896                 sta->sta.uapsd_queues = params->uapsd_queues;
1897                 sta->sta.max_sp = params->max_sp;
1898         }
1899
1900         ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
1901                                               params->ext_capab_len);
1902
1903         /*
1904          * cfg80211 validates this (1-2007) and allows setting the AID
1905          * only when creating a new station entry
1906          */
1907         if (params->aid)
1908                 sta->sta.aid = params->aid;
1909
1910         /*
1911          * Some of the following updates would be racy if called on an
1912          * existing station, via ieee80211_change_station(). However,
1913          * all such changes are rejected by cfg80211 except for updates
1914          * changing the supported rates on an existing but not yet used
1915          * TDLS peer.
1916          */
1917
1918         if (params->listen_interval >= 0)
1919                 sta->listen_interval = params->listen_interval;
1920
1921         ret = sta_link_apply_parameters(local, sta, false,
1922                                         &params->link_sta_params);
1923         if (ret)
1924                 return ret;
1925
1926         if (params->support_p2p_ps >= 0)
1927                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1928
1929         if (ieee80211_vif_is_mesh(&sdata->vif))
1930                 sta_apply_mesh_params(local, sta, params);
1931
1932         if (params->airtime_weight)
1933                 sta->airtime_weight = params->airtime_weight;
1934
1935         /* set the STA state after all sta info from usermode has been set */
1936         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1937             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1938                 ret = sta_apply_auth_flags(local, sta, mask, set);
1939                 if (ret)
1940                         return ret;
1941         }
1942
1943         /* Mark the STA as MLO if MLD MAC address is available */
1944         if (params->link_sta_params.mld_mac)
1945                 sta->sta.mlo = true;
1946
1947         return 0;
1948 }
1949
1950 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1951                                  const u8 *mac,
1952                                  struct station_parameters *params)
1953 {
1954         struct ieee80211_local *local = wiphy_priv(wiphy);
1955         struct sta_info *sta;
1956         struct ieee80211_sub_if_data *sdata;
1957         int err;
1958
1959         if (params->vlan) {
1960                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1961
1962                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1963                     sdata->vif.type != NL80211_IFTYPE_AP)
1964                         return -EINVAL;
1965         } else
1966                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1967
1968         if (ether_addr_equal(mac, sdata->vif.addr))
1969                 return -EINVAL;
1970
1971         if (!is_valid_ether_addr(mac))
1972                 return -EINVAL;
1973
1974         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1975             sdata->vif.type == NL80211_IFTYPE_STATION &&
1976             !sdata->u.mgd.associated)
1977                 return -EINVAL;
1978
1979         /*
1980          * If we have a link ID, it can be a non-MLO station on an AP MLD,
1981          * but we need to have a link_mac in that case as well, so use the
1982          * STA's MAC address in that case.
1983          */
1984         if (params->link_sta_params.link_id >= 0)
1985                 sta = sta_info_alloc_with_link(sdata, mac,
1986                                                params->link_sta_params.link_id,
1987                                                params->link_sta_params.link_mac ?: mac,
1988                                                GFP_KERNEL);
1989         else
1990                 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1991
1992         if (!sta)
1993                 return -ENOMEM;
1994
1995         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1996                 sta->sta.tdls = true;
1997
1998         /* Though the mutex is not needed here (since the station is not
1999          * visible yet), sta_apply_parameters (and inner functions) require
2000          * the mutex due to other paths.
2001          */
2002         mutex_lock(&local->sta_mtx);
2003         err = sta_apply_parameters(local, sta, params);
2004         mutex_unlock(&local->sta_mtx);
2005         if (err) {
2006                 sta_info_free(local, sta);
2007                 return err;
2008         }
2009
2010         /*
2011          * for TDLS and for unassociated station, rate control should be
2012          * initialized only when rates are known and station is marked
2013          * authorized/associated
2014          */
2015         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2016             test_sta_flag(sta, WLAN_STA_ASSOC))
2017                 rate_control_rate_init(sta);
2018
2019         return sta_info_insert(sta);
2020 }
2021
2022 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2023                                  struct station_del_parameters *params)
2024 {
2025         struct ieee80211_sub_if_data *sdata;
2026
2027         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2028
2029         if (params->mac)
2030                 return sta_info_destroy_addr_bss(sdata, params->mac);
2031
2032         sta_info_flush(sdata);
2033         return 0;
2034 }
2035
2036 static int ieee80211_change_station(struct wiphy *wiphy,
2037                                     struct net_device *dev, const u8 *mac,
2038                                     struct station_parameters *params)
2039 {
2040         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2041         struct ieee80211_local *local = wiphy_priv(wiphy);
2042         struct sta_info *sta;
2043         struct ieee80211_sub_if_data *vlansdata;
2044         enum cfg80211_station_type statype;
2045         int err;
2046
2047         mutex_lock(&local->sta_mtx);
2048
2049         sta = sta_info_get_bss(sdata, mac);
2050         if (!sta) {
2051                 err = -ENOENT;
2052                 goto out_err;
2053         }
2054
2055         switch (sdata->vif.type) {
2056         case NL80211_IFTYPE_MESH_POINT:
2057                 if (sdata->u.mesh.user_mpm)
2058                         statype = CFG80211_STA_MESH_PEER_USER;
2059                 else
2060                         statype = CFG80211_STA_MESH_PEER_KERNEL;
2061                 break;
2062         case NL80211_IFTYPE_ADHOC:
2063                 statype = CFG80211_STA_IBSS;
2064                 break;
2065         case NL80211_IFTYPE_STATION:
2066                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2067                         statype = CFG80211_STA_AP_STA;
2068                         break;
2069                 }
2070                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2071                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2072                 else
2073                         statype = CFG80211_STA_TDLS_PEER_SETUP;
2074                 break;
2075         case NL80211_IFTYPE_AP:
2076         case NL80211_IFTYPE_AP_VLAN:
2077                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2078                         statype = CFG80211_STA_AP_CLIENT;
2079                 else
2080                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2081                 break;
2082         default:
2083                 err = -EOPNOTSUPP;
2084                 goto out_err;
2085         }
2086
2087         err = cfg80211_check_station_change(wiphy, params, statype);
2088         if (err)
2089                 goto out_err;
2090
2091         if (params->vlan && params->vlan != sta->sdata->dev) {
2092                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2093
2094                 if (params->vlan->ieee80211_ptr->use_4addr) {
2095                         if (vlansdata->u.vlan.sta) {
2096                                 err = -EBUSY;
2097                                 goto out_err;
2098                         }
2099
2100                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2101                         __ieee80211_check_fast_rx_iface(vlansdata);
2102                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2103                 }
2104
2105                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2106                     sta->sdata->u.vlan.sta) {
2107                         ieee80211_clear_fast_rx(sta);
2108                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2109                 }
2110
2111                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2112                         ieee80211_vif_dec_num_mcast(sta->sdata);
2113
2114                 sta->sdata = vlansdata;
2115                 ieee80211_check_fast_xmit(sta);
2116
2117                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2118                         ieee80211_vif_inc_num_mcast(sta->sdata);
2119                         cfg80211_send_layer2_update(sta->sdata->dev,
2120                                                     sta->sta.addr);
2121                 }
2122         }
2123
2124         /* we use sta_info_get_bss() so this might be different */
2125         if (sdata != sta->sdata) {
2126                 mutex_lock_nested(&sta->sdata->wdev.mtx, 1);
2127                 err = sta_apply_parameters(local, sta, params);
2128                 mutex_unlock(&sta->sdata->wdev.mtx);
2129         } else {
2130                 err = sta_apply_parameters(local, sta, params);
2131         }
2132         if (err)
2133                 goto out_err;
2134
2135         mutex_unlock(&local->sta_mtx);
2136
2137         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2138             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2139                 ieee80211_recalc_ps(local);
2140                 ieee80211_recalc_ps_vif(sdata);
2141         }
2142
2143         return 0;
2144 out_err:
2145         mutex_unlock(&local->sta_mtx);
2146         return err;
2147 }
2148
2149 #ifdef CONFIG_MAC80211_MESH
2150 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2151                                const u8 *dst, const u8 *next_hop)
2152 {
2153         struct ieee80211_sub_if_data *sdata;
2154         struct mesh_path *mpath;
2155         struct sta_info *sta;
2156
2157         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2158
2159         rcu_read_lock();
2160         sta = sta_info_get(sdata, next_hop);
2161         if (!sta) {
2162                 rcu_read_unlock();
2163                 return -ENOENT;
2164         }
2165
2166         mpath = mesh_path_add(sdata, dst);
2167         if (IS_ERR(mpath)) {
2168                 rcu_read_unlock();
2169                 return PTR_ERR(mpath);
2170         }
2171
2172         mesh_path_fix_nexthop(mpath, sta);
2173
2174         rcu_read_unlock();
2175         return 0;
2176 }
2177
2178 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2179                                const u8 *dst)
2180 {
2181         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2182
2183         if (dst)
2184                 return mesh_path_del(sdata, dst);
2185
2186         mesh_path_flush_by_iface(sdata);
2187         return 0;
2188 }
2189
2190 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2191                                   const u8 *dst, const u8 *next_hop)
2192 {
2193         struct ieee80211_sub_if_data *sdata;
2194         struct mesh_path *mpath;
2195         struct sta_info *sta;
2196
2197         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2198
2199         rcu_read_lock();
2200
2201         sta = sta_info_get(sdata, next_hop);
2202         if (!sta) {
2203                 rcu_read_unlock();
2204                 return -ENOENT;
2205         }
2206
2207         mpath = mesh_path_lookup(sdata, dst);
2208         if (!mpath) {
2209                 rcu_read_unlock();
2210                 return -ENOENT;
2211         }
2212
2213         mesh_path_fix_nexthop(mpath, sta);
2214
2215         rcu_read_unlock();
2216         return 0;
2217 }
2218
2219 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2220                             struct mpath_info *pinfo)
2221 {
2222         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2223
2224         if (next_hop_sta)
2225                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2226         else
2227                 eth_zero_addr(next_hop);
2228
2229         memset(pinfo, 0, sizeof(*pinfo));
2230
2231         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2232
2233         pinfo->filled = MPATH_INFO_FRAME_QLEN |
2234                         MPATH_INFO_SN |
2235                         MPATH_INFO_METRIC |
2236                         MPATH_INFO_EXPTIME |
2237                         MPATH_INFO_DISCOVERY_TIMEOUT |
2238                         MPATH_INFO_DISCOVERY_RETRIES |
2239                         MPATH_INFO_FLAGS |
2240                         MPATH_INFO_HOP_COUNT |
2241                         MPATH_INFO_PATH_CHANGE;
2242
2243         pinfo->frame_qlen = mpath->frame_queue.qlen;
2244         pinfo->sn = mpath->sn;
2245         pinfo->metric = mpath->metric;
2246         if (time_before(jiffies, mpath->exp_time))
2247                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2248         pinfo->discovery_timeout =
2249                         jiffies_to_msecs(mpath->discovery_timeout);
2250         pinfo->discovery_retries = mpath->discovery_retries;
2251         if (mpath->flags & MESH_PATH_ACTIVE)
2252                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2253         if (mpath->flags & MESH_PATH_RESOLVING)
2254                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2255         if (mpath->flags & MESH_PATH_SN_VALID)
2256                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2257         if (mpath->flags & MESH_PATH_FIXED)
2258                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2259         if (mpath->flags & MESH_PATH_RESOLVED)
2260                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2261         pinfo->hop_count = mpath->hop_count;
2262         pinfo->path_change_count = mpath->path_change_count;
2263 }
2264
2265 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2266                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2267
2268 {
2269         struct ieee80211_sub_if_data *sdata;
2270         struct mesh_path *mpath;
2271
2272         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2273
2274         rcu_read_lock();
2275         mpath = mesh_path_lookup(sdata, dst);
2276         if (!mpath) {
2277                 rcu_read_unlock();
2278                 return -ENOENT;
2279         }
2280         memcpy(dst, mpath->dst, ETH_ALEN);
2281         mpath_set_pinfo(mpath, next_hop, pinfo);
2282         rcu_read_unlock();
2283         return 0;
2284 }
2285
2286 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2287                                 int idx, u8 *dst, u8 *next_hop,
2288                                 struct mpath_info *pinfo)
2289 {
2290         struct ieee80211_sub_if_data *sdata;
2291         struct mesh_path *mpath;
2292
2293         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2294
2295         rcu_read_lock();
2296         mpath = mesh_path_lookup_by_idx(sdata, idx);
2297         if (!mpath) {
2298                 rcu_read_unlock();
2299                 return -ENOENT;
2300         }
2301         memcpy(dst, mpath->dst, ETH_ALEN);
2302         mpath_set_pinfo(mpath, next_hop, pinfo);
2303         rcu_read_unlock();
2304         return 0;
2305 }
2306
2307 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2308                           struct mpath_info *pinfo)
2309 {
2310         memset(pinfo, 0, sizeof(*pinfo));
2311         memcpy(mpp, mpath->mpp, ETH_ALEN);
2312
2313         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2314 }
2315
2316 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2317                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2318
2319 {
2320         struct ieee80211_sub_if_data *sdata;
2321         struct mesh_path *mpath;
2322
2323         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2324
2325         rcu_read_lock();
2326         mpath = mpp_path_lookup(sdata, dst);
2327         if (!mpath) {
2328                 rcu_read_unlock();
2329                 return -ENOENT;
2330         }
2331         memcpy(dst, mpath->dst, ETH_ALEN);
2332         mpp_set_pinfo(mpath, mpp, pinfo);
2333         rcu_read_unlock();
2334         return 0;
2335 }
2336
2337 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2338                               int idx, u8 *dst, u8 *mpp,
2339                               struct mpath_info *pinfo)
2340 {
2341         struct ieee80211_sub_if_data *sdata;
2342         struct mesh_path *mpath;
2343
2344         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2345
2346         rcu_read_lock();
2347         mpath = mpp_path_lookup_by_idx(sdata, idx);
2348         if (!mpath) {
2349                 rcu_read_unlock();
2350                 return -ENOENT;
2351         }
2352         memcpy(dst, mpath->dst, ETH_ALEN);
2353         mpp_set_pinfo(mpath, mpp, pinfo);
2354         rcu_read_unlock();
2355         return 0;
2356 }
2357
2358 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2359                                 struct net_device *dev,
2360                                 struct mesh_config *conf)
2361 {
2362         struct ieee80211_sub_if_data *sdata;
2363         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2364
2365         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2366         return 0;
2367 }
2368
2369 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2370 {
2371         return (mask >> (parm-1)) & 0x1;
2372 }
2373
2374 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2375                 const struct mesh_setup *setup)
2376 {
2377         u8 *new_ie;
2378         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2379                                         struct ieee80211_sub_if_data, u.mesh);
2380         int i;
2381
2382         /* allocate information elements */
2383         new_ie = NULL;
2384
2385         if (setup->ie_len) {
2386                 new_ie = kmemdup(setup->ie, setup->ie_len,
2387                                 GFP_KERNEL);
2388                 if (!new_ie)
2389                         return -ENOMEM;
2390         }
2391         ifmsh->ie_len = setup->ie_len;
2392         ifmsh->ie = new_ie;
2393
2394         /* now copy the rest of the setup parameters */
2395         ifmsh->mesh_id_len = setup->mesh_id_len;
2396         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2397         ifmsh->mesh_sp_id = setup->sync_method;
2398         ifmsh->mesh_pp_id = setup->path_sel_proto;
2399         ifmsh->mesh_pm_id = setup->path_metric;
2400         ifmsh->user_mpm = setup->user_mpm;
2401         ifmsh->mesh_auth_id = setup->auth_id;
2402         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2403         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2404         if (setup->is_authenticated)
2405                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2406         if (setup->is_secure)
2407                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2408
2409         /* mcast rate setting in Mesh Node */
2410         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2411                                                 sizeof(setup->mcast_rate));
2412         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2413
2414         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2415         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2416
2417         sdata->beacon_rate_set = false;
2418         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2419                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2420                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2421                         sdata->beacon_rateidx_mask[i] =
2422                                 setup->beacon_rate.control[i].legacy;
2423                         if (sdata->beacon_rateidx_mask[i])
2424                                 sdata->beacon_rate_set = true;
2425                 }
2426         }
2427
2428         return 0;
2429 }
2430
2431 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2432                                         struct net_device *dev, u32 mask,
2433                                         const struct mesh_config *nconf)
2434 {
2435         struct mesh_config *conf;
2436         struct ieee80211_sub_if_data *sdata;
2437         struct ieee80211_if_mesh *ifmsh;
2438
2439         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2440         ifmsh = &sdata->u.mesh;
2441
2442         /* Set the config options which we are interested in setting */
2443         conf = &(sdata->u.mesh.mshcfg);
2444         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2445                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2446         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2447                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2448         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2449                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2450         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2451                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2452         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2453                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2454         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2455                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2456         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2457                 conf->element_ttl = nconf->element_ttl;
2458         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2459                 if (ifmsh->user_mpm)
2460                         return -EBUSY;
2461                 conf->auto_open_plinks = nconf->auto_open_plinks;
2462         }
2463         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2464                 conf->dot11MeshNbrOffsetMaxNeighbor =
2465                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2466         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2467                 conf->dot11MeshHWMPmaxPREQretries =
2468                         nconf->dot11MeshHWMPmaxPREQretries;
2469         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2470                 conf->path_refresh_time = nconf->path_refresh_time;
2471         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2472                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2473         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2474                 conf->dot11MeshHWMPactivePathTimeout =
2475                         nconf->dot11MeshHWMPactivePathTimeout;
2476         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2477                 conf->dot11MeshHWMPpreqMinInterval =
2478                         nconf->dot11MeshHWMPpreqMinInterval;
2479         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2480                 conf->dot11MeshHWMPperrMinInterval =
2481                         nconf->dot11MeshHWMPperrMinInterval;
2482         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2483                            mask))
2484                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2485                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2486         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2487                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2488                 ieee80211_mesh_root_setup(ifmsh);
2489         }
2490         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2491                 /* our current gate announcement implementation rides on root
2492                  * announcements, so require this ifmsh to also be a root node
2493                  * */
2494                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2495                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2496                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2497                         ieee80211_mesh_root_setup(ifmsh);
2498                 }
2499                 conf->dot11MeshGateAnnouncementProtocol =
2500                         nconf->dot11MeshGateAnnouncementProtocol;
2501         }
2502         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2503                 conf->dot11MeshHWMPRannInterval =
2504                         nconf->dot11MeshHWMPRannInterval;
2505         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2506                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2507         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2508                 /* our RSSI threshold implementation is supported only for
2509                  * devices that report signal in dBm.
2510                  */
2511                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2512                         return -ENOTSUPP;
2513                 conf->rssi_threshold = nconf->rssi_threshold;
2514         }
2515         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2516                 conf->ht_opmode = nconf->ht_opmode;
2517                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2518                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2519                                                   BSS_CHANGED_HT);
2520         }
2521         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2522                 conf->dot11MeshHWMPactivePathToRootTimeout =
2523                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2524         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2525                 conf->dot11MeshHWMProotInterval =
2526                         nconf->dot11MeshHWMProotInterval;
2527         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2528                 conf->dot11MeshHWMPconfirmationInterval =
2529                         nconf->dot11MeshHWMPconfirmationInterval;
2530         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2531                 conf->power_mode = nconf->power_mode;
2532                 ieee80211_mps_local_status_update(sdata);
2533         }
2534         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2535                 conf->dot11MeshAwakeWindowDuration =
2536                         nconf->dot11MeshAwakeWindowDuration;
2537         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2538                 conf->plink_timeout = nconf->plink_timeout;
2539         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2540                 conf->dot11MeshConnectedToMeshGate =
2541                         nconf->dot11MeshConnectedToMeshGate;
2542         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2543                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2544         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2545                 conf->dot11MeshConnectedToAuthServer =
2546                         nconf->dot11MeshConnectedToAuthServer;
2547         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2548         return 0;
2549 }
2550
2551 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2552                                const struct mesh_config *conf,
2553                                const struct mesh_setup *setup)
2554 {
2555         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2556         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2557         int err;
2558
2559         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2560         err = copy_mesh_setup(ifmsh, setup);
2561         if (err)
2562                 return err;
2563
2564         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2565
2566         /* can mesh use other SMPS modes? */
2567         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2568         sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2569
2570         mutex_lock(&sdata->local->mtx);
2571         err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef,
2572                                          IEEE80211_CHANCTX_SHARED);
2573         mutex_unlock(&sdata->local->mtx);
2574         if (err)
2575                 return err;
2576
2577         return ieee80211_start_mesh(sdata);
2578 }
2579
2580 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2581 {
2582         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2583
2584         ieee80211_stop_mesh(sdata);
2585         mutex_lock(&sdata->local->mtx);
2586         ieee80211_link_release_channel(&sdata->deflink);
2587         kfree(sdata->u.mesh.ie);
2588         mutex_unlock(&sdata->local->mtx);
2589
2590         return 0;
2591 }
2592 #endif
2593
2594 static int ieee80211_change_bss(struct wiphy *wiphy,
2595                                 struct net_device *dev,
2596                                 struct bss_parameters *params)
2597 {
2598         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2599         struct ieee80211_link_data *link;
2600         struct ieee80211_supported_band *sband;
2601         u32 changed = 0;
2602
2603         link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2604         if (IS_ERR(link))
2605                 return PTR_ERR(link);
2606
2607         if (!sdata_dereference(link->u.ap.beacon, sdata))
2608                 return -ENOENT;
2609
2610         sband = ieee80211_get_link_sband(link);
2611         if (!sband)
2612                 return -EINVAL;
2613
2614         if (params->basic_rates) {
2615                 if (!ieee80211_parse_bitrates(link->conf->chandef.width,
2616                                               wiphy->bands[sband->band],
2617                                               params->basic_rates,
2618                                               params->basic_rates_len,
2619                                               &link->conf->basic_rates))
2620                         return -EINVAL;
2621                 changed |= BSS_CHANGED_BASIC_RATES;
2622                 ieee80211_check_rate_mask(link);
2623         }
2624
2625         if (params->use_cts_prot >= 0) {
2626                 link->conf->use_cts_prot = params->use_cts_prot;
2627                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2628         }
2629         if (params->use_short_preamble >= 0) {
2630                 link->conf->use_short_preamble = params->use_short_preamble;
2631                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2632         }
2633
2634         if (!link->conf->use_short_slot &&
2635             (sband->band == NL80211_BAND_5GHZ ||
2636              sband->band == NL80211_BAND_6GHZ)) {
2637                 link->conf->use_short_slot = true;
2638                 changed |= BSS_CHANGED_ERP_SLOT;
2639         }
2640
2641         if (params->use_short_slot_time >= 0) {
2642                 link->conf->use_short_slot = params->use_short_slot_time;
2643                 changed |= BSS_CHANGED_ERP_SLOT;
2644         }
2645
2646         if (params->ap_isolate >= 0) {
2647                 if (params->ap_isolate)
2648                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2649                 else
2650                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2651                 ieee80211_check_fast_rx_iface(sdata);
2652         }
2653
2654         if (params->ht_opmode >= 0) {
2655                 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2656                 changed |= BSS_CHANGED_HT;
2657         }
2658
2659         if (params->p2p_ctwindow >= 0) {
2660                 link->conf->p2p_noa_attr.oppps_ctwindow &=
2661                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2662                 link->conf->p2p_noa_attr.oppps_ctwindow |=
2663                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2664                 changed |= BSS_CHANGED_P2P_PS;
2665         }
2666
2667         if (params->p2p_opp_ps > 0) {
2668                 link->conf->p2p_noa_attr.oppps_ctwindow |=
2669                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2670                 changed |= BSS_CHANGED_P2P_PS;
2671         } else if (params->p2p_opp_ps == 0) {
2672                 link->conf->p2p_noa_attr.oppps_ctwindow &=
2673                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2674                 changed |= BSS_CHANGED_P2P_PS;
2675         }
2676
2677         ieee80211_link_info_change_notify(sdata, link, changed);
2678
2679         return 0;
2680 }
2681
2682 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2683                                     struct net_device *dev,
2684                                     struct ieee80211_txq_params *params)
2685 {
2686         struct ieee80211_local *local = wiphy_priv(wiphy);
2687         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2688         struct ieee80211_link_data *link =
2689                 ieee80211_link_or_deflink(sdata, params->link_id, true);
2690         struct ieee80211_tx_queue_params p;
2691
2692         if (!local->ops->conf_tx)
2693                 return -EOPNOTSUPP;
2694
2695         if (local->hw.queues < IEEE80211_NUM_ACS)
2696                 return -EOPNOTSUPP;
2697
2698         if (IS_ERR(link))
2699                 return PTR_ERR(link);
2700
2701         memset(&p, 0, sizeof(p));
2702         p.aifs = params->aifs;
2703         p.cw_max = params->cwmax;
2704         p.cw_min = params->cwmin;
2705         p.txop = params->txop;
2706
2707         /*
2708          * Setting tx queue params disables u-apsd because it's only
2709          * called in master mode.
2710          */
2711         p.uapsd = false;
2712
2713         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2714
2715         link->tx_conf[params->ac] = p;
2716         if (drv_conf_tx(local, link, params->ac, &p)) {
2717                 wiphy_debug(local->hw.wiphy,
2718                             "failed to set TX queue parameters for AC %d\n",
2719                             params->ac);
2720                 return -EINVAL;
2721         }
2722
2723         ieee80211_link_info_change_notify(sdata, link,
2724                                           BSS_CHANGED_QOS);
2725
2726         return 0;
2727 }
2728
2729 #ifdef CONFIG_PM
2730 static int ieee80211_suspend(struct wiphy *wiphy,
2731                              struct cfg80211_wowlan *wowlan)
2732 {
2733         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2734 }
2735
2736 static int ieee80211_resume(struct wiphy *wiphy)
2737 {
2738         return __ieee80211_resume(wiphy_priv(wiphy));
2739 }
2740 #else
2741 #define ieee80211_suspend NULL
2742 #define ieee80211_resume NULL
2743 #endif
2744
2745 static int ieee80211_scan(struct wiphy *wiphy,
2746                           struct cfg80211_scan_request *req)
2747 {
2748         struct ieee80211_sub_if_data *sdata;
2749
2750         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2751
2752         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2753         case NL80211_IFTYPE_STATION:
2754         case NL80211_IFTYPE_ADHOC:
2755         case NL80211_IFTYPE_MESH_POINT:
2756         case NL80211_IFTYPE_P2P_CLIENT:
2757         case NL80211_IFTYPE_P2P_DEVICE:
2758                 break;
2759         case NL80211_IFTYPE_P2P_GO:
2760                 if (sdata->local->ops->hw_scan)
2761                         break;
2762                 /*
2763                  * FIXME: implement NoA while scanning in software,
2764                  * for now fall through to allow scanning only when
2765                  * beaconing hasn't been configured yet
2766                  */
2767                 fallthrough;
2768         case NL80211_IFTYPE_AP:
2769                 /*
2770                  * If the scan has been forced (and the driver supports
2771                  * forcing), don't care about being beaconing already.
2772                  * This will create problems to the attached stations (e.g. all
2773                  * the frames sent while scanning on other channel will be
2774                  * lost)
2775                  */
2776                 if (sdata->deflink.u.ap.beacon &&
2777                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2778                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2779                         return -EOPNOTSUPP;
2780                 break;
2781         case NL80211_IFTYPE_NAN:
2782         default:
2783                 return -EOPNOTSUPP;
2784         }
2785
2786         return ieee80211_request_scan(sdata, req);
2787 }
2788
2789 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2790 {
2791         ieee80211_scan_cancel(wiphy_priv(wiphy));
2792 }
2793
2794 static int
2795 ieee80211_sched_scan_start(struct wiphy *wiphy,
2796                            struct net_device *dev,
2797                            struct cfg80211_sched_scan_request *req)
2798 {
2799         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2800
2801         if (!sdata->local->ops->sched_scan_start)
2802                 return -EOPNOTSUPP;
2803
2804         return ieee80211_request_sched_scan_start(sdata, req);
2805 }
2806
2807 static int
2808 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2809                           u64 reqid)
2810 {
2811         struct ieee80211_local *local = wiphy_priv(wiphy);
2812
2813         if (!local->ops->sched_scan_stop)
2814                 return -EOPNOTSUPP;
2815
2816         return ieee80211_request_sched_scan_stop(local);
2817 }
2818
2819 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2820                           struct cfg80211_auth_request *req)
2821 {
2822         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2823 }
2824
2825 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2826                            struct cfg80211_assoc_request *req)
2827 {
2828         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2829 }
2830
2831 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2832                             struct cfg80211_deauth_request *req)
2833 {
2834         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2835 }
2836
2837 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2838                               struct cfg80211_disassoc_request *req)
2839 {
2840         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2841 }
2842
2843 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2844                                struct cfg80211_ibss_params *params)
2845 {
2846         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2847 }
2848
2849 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2850 {
2851         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2852 }
2853
2854 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2855                               struct ocb_setup *setup)
2856 {
2857         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2858 }
2859
2860 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2861 {
2862         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2863 }
2864
2865 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2866                                     int rate[NUM_NL80211_BANDS])
2867 {
2868         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2869
2870         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2871                sizeof(int) * NUM_NL80211_BANDS);
2872
2873         ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2874                                           BSS_CHANGED_MCAST_RATE);
2875
2876         return 0;
2877 }
2878
2879 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2880 {
2881         struct ieee80211_local *local = wiphy_priv(wiphy);
2882         int err;
2883
2884         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2885                 ieee80211_check_fast_xmit_all(local);
2886
2887                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2888
2889                 if (err) {
2890                         ieee80211_check_fast_xmit_all(local);
2891                         return err;
2892                 }
2893         }
2894
2895         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2896             (changed & WIPHY_PARAM_DYN_ACK)) {
2897                 s16 coverage_class;
2898
2899                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2900                                         wiphy->coverage_class : -1;
2901                 err = drv_set_coverage_class(local, coverage_class);
2902
2903                 if (err)
2904                         return err;
2905         }
2906
2907         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2908                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2909
2910                 if (err)
2911                         return err;
2912         }
2913
2914         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2915                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2916                         return -EINVAL;
2917                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2918         }
2919         if (changed & WIPHY_PARAM_RETRY_LONG) {
2920                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2921                         return -EINVAL;
2922                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2923         }
2924         if (changed &
2925             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2926                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2927
2928         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2929                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2930                        WIPHY_PARAM_TXQ_QUANTUM))
2931                 ieee80211_txq_set_params(local);
2932
2933         return 0;
2934 }
2935
2936 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2937                                   struct wireless_dev *wdev,
2938                                   enum nl80211_tx_power_setting type, int mbm)
2939 {
2940         struct ieee80211_local *local = wiphy_priv(wiphy);
2941         struct ieee80211_sub_if_data *sdata;
2942         enum nl80211_tx_power_setting txp_type = type;
2943         bool update_txp_type = false;
2944         bool has_monitor = false;
2945
2946         if (wdev) {
2947                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2948
2949                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2950                         sdata = wiphy_dereference(local->hw.wiphy,
2951                                                   local->monitor_sdata);
2952                         if (!sdata)
2953                                 return -EOPNOTSUPP;
2954                 }
2955
2956                 switch (type) {
2957                 case NL80211_TX_POWER_AUTOMATIC:
2958                         sdata->deflink.user_power_level =
2959                                 IEEE80211_UNSET_POWER_LEVEL;
2960                         txp_type = NL80211_TX_POWER_LIMITED;
2961                         break;
2962                 case NL80211_TX_POWER_LIMITED:
2963                 case NL80211_TX_POWER_FIXED:
2964                         if (mbm < 0 || (mbm % 100))
2965                                 return -EOPNOTSUPP;
2966                         sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
2967                         break;
2968                 }
2969
2970                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2971                         update_txp_type = true;
2972                         sdata->vif.bss_conf.txpower_type = txp_type;
2973                 }
2974
2975                 ieee80211_recalc_txpower(sdata, update_txp_type);
2976
2977                 return 0;
2978         }
2979
2980         switch (type) {
2981         case NL80211_TX_POWER_AUTOMATIC:
2982                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2983                 txp_type = NL80211_TX_POWER_LIMITED;
2984                 break;
2985         case NL80211_TX_POWER_LIMITED:
2986         case NL80211_TX_POWER_FIXED:
2987                 if (mbm < 0 || (mbm % 100))
2988                         return -EOPNOTSUPP;
2989                 local->user_power_level = MBM_TO_DBM(mbm);
2990                 break;
2991         }
2992
2993         mutex_lock(&local->iflist_mtx);
2994         list_for_each_entry(sdata, &local->interfaces, list) {
2995                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2996                         has_monitor = true;
2997                         continue;
2998                 }
2999                 sdata->deflink.user_power_level = local->user_power_level;
3000                 if (txp_type != sdata->vif.bss_conf.txpower_type)
3001                         update_txp_type = true;
3002                 sdata->vif.bss_conf.txpower_type = txp_type;
3003         }
3004         list_for_each_entry(sdata, &local->interfaces, list) {
3005                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
3006                         continue;
3007                 ieee80211_recalc_txpower(sdata, update_txp_type);
3008         }
3009         mutex_unlock(&local->iflist_mtx);
3010
3011         if (has_monitor) {
3012                 sdata = wiphy_dereference(local->hw.wiphy,
3013                                           local->monitor_sdata);
3014                 if (sdata) {
3015                         sdata->deflink.user_power_level = local->user_power_level;
3016                         if (txp_type != sdata->vif.bss_conf.txpower_type)
3017                                 update_txp_type = true;
3018                         sdata->vif.bss_conf.txpower_type = txp_type;
3019
3020                         ieee80211_recalc_txpower(sdata, update_txp_type);
3021                 }
3022         }
3023
3024         return 0;
3025 }
3026
3027 static int ieee80211_get_tx_power(struct wiphy *wiphy,
3028                                   struct wireless_dev *wdev,
3029                                   int *dbm)
3030 {
3031         struct ieee80211_local *local = wiphy_priv(wiphy);
3032         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3033
3034         if (local->ops->get_txpower)
3035                 return drv_get_txpower(local, sdata, dbm);
3036
3037         if (!local->use_chanctx)
3038                 *dbm = local->hw.conf.power_level;
3039         else
3040                 *dbm = sdata->vif.bss_conf.txpower;
3041
3042         return 0;
3043 }
3044
3045 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3046 {
3047         struct ieee80211_local *local = wiphy_priv(wiphy);
3048
3049         drv_rfkill_poll(local);
3050 }
3051
3052 #ifdef CONFIG_NL80211_TESTMODE
3053 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3054                                   struct wireless_dev *wdev,
3055                                   void *data, int len)
3056 {
3057         struct ieee80211_local *local = wiphy_priv(wiphy);
3058         struct ieee80211_vif *vif = NULL;
3059
3060         if (!local->ops->testmode_cmd)
3061                 return -EOPNOTSUPP;
3062
3063         if (wdev) {
3064                 struct ieee80211_sub_if_data *sdata;
3065
3066                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3067                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3068                         vif = &sdata->vif;
3069         }
3070
3071         return local->ops->testmode_cmd(&local->hw, vif, data, len);
3072 }
3073
3074 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3075                                    struct sk_buff *skb,
3076                                    struct netlink_callback *cb,
3077                                    void *data, int len)
3078 {
3079         struct ieee80211_local *local = wiphy_priv(wiphy);
3080
3081         if (!local->ops->testmode_dump)
3082                 return -EOPNOTSUPP;
3083
3084         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3085 }
3086 #endif
3087
3088 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3089                                  struct ieee80211_link_data *link,
3090                                  enum ieee80211_smps_mode smps_mode)
3091 {
3092         const u8 *ap;
3093         enum ieee80211_smps_mode old_req;
3094         int err;
3095         struct sta_info *sta;
3096         bool tdls_peer_found = false;
3097
3098         lockdep_assert_held(&sdata->wdev.mtx);
3099
3100         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3101                 return -EINVAL;
3102
3103         old_req = link->u.mgd.req_smps;
3104         link->u.mgd.req_smps = smps_mode;
3105
3106         if (old_req == smps_mode &&
3107             smps_mode != IEEE80211_SMPS_AUTOMATIC)
3108                 return 0;
3109
3110         /*
3111          * If not associated, or current association is not an HT
3112          * association, there's no need to do anything, just store
3113          * the new value until we associate.
3114          */
3115         if (!sdata->u.mgd.associated ||
3116             link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
3117                 return 0;
3118
3119         ap = link->u.mgd.bssid;
3120
3121         rcu_read_lock();
3122         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3123                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3124                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3125                         continue;
3126
3127                 tdls_peer_found = true;
3128                 break;
3129         }
3130         rcu_read_unlock();
3131
3132         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3133                 if (tdls_peer_found || !sdata->u.mgd.powersave)
3134                         smps_mode = IEEE80211_SMPS_OFF;
3135                 else
3136                         smps_mode = IEEE80211_SMPS_DYNAMIC;
3137         }
3138
3139         /* send SM PS frame to AP */
3140         err = ieee80211_send_smps_action(sdata, smps_mode,
3141                                          ap, ap);
3142         if (err)
3143                 link->u.mgd.req_smps = old_req;
3144         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3145                 ieee80211_teardown_tdls_peers(sdata);
3146
3147         return err;
3148 }
3149
3150 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3151                                     bool enabled, int timeout)
3152 {
3153         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3154         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3155         unsigned int link_id;
3156
3157         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3158                 return -EOPNOTSUPP;
3159
3160         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3161                 return -EOPNOTSUPP;
3162
3163         if (enabled == sdata->u.mgd.powersave &&
3164             timeout == local->dynamic_ps_forced_timeout)
3165                 return 0;
3166
3167         sdata->u.mgd.powersave = enabled;
3168         local->dynamic_ps_forced_timeout = timeout;
3169
3170         /* no change, but if automatic follow powersave */
3171         sdata_lock(sdata);
3172         for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3173                 struct ieee80211_link_data *link;
3174
3175                 link = sdata_dereference(sdata->link[link_id], sdata);
3176
3177                 if (!link)
3178                         continue;
3179                 __ieee80211_request_smps_mgd(sdata, link,
3180                                              link->u.mgd.req_smps);
3181         }
3182         sdata_unlock(sdata);
3183
3184         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3185                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3186
3187         ieee80211_recalc_ps(local);
3188         ieee80211_recalc_ps_vif(sdata);
3189         ieee80211_check_fast_rx_iface(sdata);
3190
3191         return 0;
3192 }
3193
3194 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3195                                          struct net_device *dev,
3196                                          s32 rssi_thold, u32 rssi_hyst)
3197 {
3198         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3199         struct ieee80211_vif *vif = &sdata->vif;
3200         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3201
3202         if (rssi_thold == bss_conf->cqm_rssi_thold &&
3203             rssi_hyst == bss_conf->cqm_rssi_hyst)
3204                 return 0;
3205
3206         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3207             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3208                 return -EOPNOTSUPP;
3209
3210         bss_conf->cqm_rssi_thold = rssi_thold;
3211         bss_conf->cqm_rssi_hyst = rssi_hyst;
3212         bss_conf->cqm_rssi_low = 0;
3213         bss_conf->cqm_rssi_high = 0;
3214         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3215
3216         /* tell the driver upon association, unless already associated */
3217         if (sdata->u.mgd.associated &&
3218             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3219                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3220                                                   BSS_CHANGED_CQM);
3221
3222         return 0;
3223 }
3224
3225 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3226                                                struct net_device *dev,
3227                                                s32 rssi_low, s32 rssi_high)
3228 {
3229         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3230         struct ieee80211_vif *vif = &sdata->vif;
3231         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3232
3233         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
3234                 return -EOPNOTSUPP;
3235
3236         bss_conf->cqm_rssi_low = rssi_low;
3237         bss_conf->cqm_rssi_high = rssi_high;
3238         bss_conf->cqm_rssi_thold = 0;
3239         bss_conf->cqm_rssi_hyst = 0;
3240         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3241
3242         /* tell the driver upon association, unless already associated */
3243         if (sdata->u.mgd.associated &&
3244             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3245                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3246                                                   BSS_CHANGED_CQM);
3247
3248         return 0;
3249 }
3250
3251 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3252                                       struct net_device *dev,
3253                                       unsigned int link_id,
3254                                       const u8 *addr,
3255                                       const struct cfg80211_bitrate_mask *mask)
3256 {
3257         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3258         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3259         int i, ret;
3260
3261         if (!ieee80211_sdata_running(sdata))
3262                 return -ENETDOWN;
3263
3264         /*
3265          * If active validate the setting and reject it if it doesn't leave
3266          * at least one basic rate usable, since we really have to be able
3267          * to send something, and if we're an AP we have to be able to do
3268          * so at a basic rate so that all clients can receive it.
3269          */
3270         if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3271             sdata->vif.bss_conf.chandef.chan) {
3272                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3273                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
3274
3275                 if (!(mask->control[band].legacy & basic_rates))
3276                         return -EINVAL;
3277         }
3278
3279         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3280                 ret = drv_set_bitrate_mask(local, sdata, mask);
3281                 if (ret)
3282                         return ret;
3283         }
3284
3285         for (i = 0; i < NUM_NL80211_BANDS; i++) {
3286                 struct ieee80211_supported_band *sband = wiphy->bands[i];
3287                 int j;
3288
3289                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3290                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3291                        sizeof(mask->control[i].ht_mcs));
3292                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3293                        mask->control[i].vht_mcs,
3294                        sizeof(mask->control[i].vht_mcs));
3295
3296                 sdata->rc_has_mcs_mask[i] = false;
3297                 sdata->rc_has_vht_mcs_mask[i] = false;
3298                 if (!sband)
3299                         continue;
3300
3301                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3302                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3303                                 sdata->rc_has_mcs_mask[i] = true;
3304                                 break;
3305                         }
3306                 }
3307
3308                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3309                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3310                                 sdata->rc_has_vht_mcs_mask[i] = true;
3311                                 break;
3312                         }
3313                 }
3314         }
3315
3316         return 0;
3317 }
3318
3319 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3320                                            struct net_device *dev,
3321                                            struct cfg80211_chan_def *chandef,
3322                                            u32 cac_time_ms)
3323 {
3324         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3325         struct ieee80211_local *local = sdata->local;
3326         int err;
3327
3328         mutex_lock(&local->mtx);
3329         if (!list_empty(&local->roc_list) || local->scanning) {
3330                 err = -EBUSY;
3331                 goto out_unlock;
3332         }
3333
3334         /* whatever, but channel contexts should not complain about that one */
3335         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
3336         sdata->deflink.needed_rx_chains = local->rx_chains;
3337
3338         err = ieee80211_link_use_channel(&sdata->deflink, chandef,
3339                                          IEEE80211_CHANCTX_SHARED);
3340         if (err)
3341                 goto out_unlock;
3342
3343         ieee80211_queue_delayed_work(&sdata->local->hw,
3344                                      &sdata->deflink.dfs_cac_timer_work,
3345                                      msecs_to_jiffies(cac_time_ms));
3346
3347  out_unlock:
3348         mutex_unlock(&local->mtx);
3349         return err;
3350 }
3351
3352 static void ieee80211_end_cac(struct wiphy *wiphy,
3353                               struct net_device *dev)
3354 {
3355         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3356         struct ieee80211_local *local = sdata->local;
3357
3358         mutex_lock(&local->mtx);
3359         list_for_each_entry(sdata, &local->interfaces, list) {
3360                 /* it might be waiting for the local->mtx, but then
3361                  * by the time it gets it, sdata->wdev.cac_started
3362                  * will no longer be true
3363                  */
3364                 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work);
3365
3366                 if (sdata->wdev.cac_started) {
3367                         ieee80211_link_release_channel(&sdata->deflink);
3368                         sdata->wdev.cac_started = false;
3369                 }
3370         }
3371         mutex_unlock(&local->mtx);
3372 }
3373
3374 static struct cfg80211_beacon_data *
3375 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3376 {
3377         struct cfg80211_beacon_data *new_beacon;
3378         u8 *pos;
3379         int len;
3380
3381         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3382               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3383               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len +
3384               ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies);
3385
3386         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3387         if (!new_beacon)
3388                 return NULL;
3389
3390         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3391                 new_beacon->mbssid_ies =
3392                         kzalloc(struct_size(new_beacon->mbssid_ies,
3393                                             elem, beacon->mbssid_ies->cnt),
3394                                 GFP_KERNEL);
3395                 if (!new_beacon->mbssid_ies) {
3396                         kfree(new_beacon);
3397                         return NULL;
3398                 }
3399         }
3400
3401         pos = (u8 *)(new_beacon + 1);
3402         if (beacon->head_len) {
3403                 new_beacon->head_len = beacon->head_len;
3404                 new_beacon->head = pos;
3405                 memcpy(pos, beacon->head, beacon->head_len);
3406                 pos += beacon->head_len;
3407         }
3408         if (beacon->tail_len) {
3409                 new_beacon->tail_len = beacon->tail_len;
3410                 new_beacon->tail = pos;
3411                 memcpy(pos, beacon->tail, beacon->tail_len);
3412                 pos += beacon->tail_len;
3413         }
3414         if (beacon->beacon_ies_len) {
3415                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3416                 new_beacon->beacon_ies = pos;
3417                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3418                 pos += beacon->beacon_ies_len;
3419         }
3420         if (beacon->proberesp_ies_len) {
3421                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3422                 new_beacon->proberesp_ies = pos;
3423                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3424                 pos += beacon->proberesp_ies_len;
3425         }
3426         if (beacon->assocresp_ies_len) {
3427                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3428                 new_beacon->assocresp_ies = pos;
3429                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3430                 pos += beacon->assocresp_ies_len;
3431         }
3432         if (beacon->probe_resp_len) {
3433                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3434                 new_beacon->probe_resp = pos;
3435                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3436                 pos += beacon->probe_resp_len;
3437         }
3438         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt)
3439                 pos += ieee80211_copy_mbssid_beacon(pos,
3440                                                     new_beacon->mbssid_ies,
3441                                                     beacon->mbssid_ies);
3442
3443         /* might copy -1, meaning no changes requested */
3444         new_beacon->ftm_responder = beacon->ftm_responder;
3445         if (beacon->lci) {
3446                 new_beacon->lci_len = beacon->lci_len;
3447                 new_beacon->lci = pos;
3448                 memcpy(pos, beacon->lci, beacon->lci_len);
3449                 pos += beacon->lci_len;
3450         }
3451         if (beacon->civicloc) {
3452                 new_beacon->civicloc_len = beacon->civicloc_len;
3453                 new_beacon->civicloc = pos;
3454                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3455                 pos += beacon->civicloc_len;
3456         }
3457
3458         return new_beacon;
3459 }
3460
3461 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3462 {
3463         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3464         struct ieee80211_local *local = sdata->local;
3465
3466         rcu_read_lock();
3467
3468         if (vif->mbssid_tx_vif == vif) {
3469                 /* Trigger ieee80211_csa_finish() on the non-transmitting
3470                  * interfaces when channel switch is received on
3471                  * transmitting interface
3472                  */
3473                 struct ieee80211_sub_if_data *iter;
3474
3475                 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3476                         if (!ieee80211_sdata_running(iter))
3477                                 continue;
3478
3479                         if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3480                                 continue;
3481
3482                         ieee80211_queue_work(&iter->local->hw,
3483                                              &iter->deflink.csa_finalize_work);
3484                 }
3485         }
3486         ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work);
3487
3488         rcu_read_unlock();
3489 }
3490 EXPORT_SYMBOL(ieee80211_csa_finish);
3491
3492 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3493 {
3494         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3495         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3496         struct ieee80211_local *local = sdata->local;
3497
3498         sdata->deflink.csa_block_tx = block_tx;
3499         sdata_info(sdata, "channel switch failed, disconnecting\n");
3500         ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work);
3501 }
3502 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3503
3504 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3505                                           u32 *changed)
3506 {
3507         int err;
3508
3509         switch (sdata->vif.type) {
3510         case NL80211_IFTYPE_AP:
3511                 if (!sdata->deflink.u.ap.next_beacon)
3512                         return -EINVAL;
3513
3514                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3515                                               sdata->deflink.u.ap.next_beacon,
3516                                               NULL, NULL);
3517                 ieee80211_free_next_beacon(&sdata->deflink);
3518
3519                 if (err < 0)
3520                         return err;
3521                 *changed |= err;
3522                 break;
3523         case NL80211_IFTYPE_ADHOC:
3524                 err = ieee80211_ibss_finish_csa(sdata);
3525                 if (err < 0)
3526                         return err;
3527                 *changed |= err;
3528                 break;
3529 #ifdef CONFIG_MAC80211_MESH
3530         case NL80211_IFTYPE_MESH_POINT:
3531                 err = ieee80211_mesh_finish_csa(sdata);
3532                 if (err < 0)
3533                         return err;
3534                 *changed |= err;
3535                 break;
3536 #endif
3537         default:
3538                 WARN_ON(1);
3539                 return -EINVAL;
3540         }
3541
3542         return 0;
3543 }
3544
3545 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3546 {
3547         struct ieee80211_local *local = sdata->local;
3548         u32 changed = 0;
3549         int err;
3550
3551         sdata_assert_lock(sdata);
3552         lockdep_assert_held(&local->mtx);
3553         lockdep_assert_held(&local->chanctx_mtx);
3554
3555         if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) {
3556                 sdata->vif.bss_conf.eht_puncturing =
3557                                         sdata->vif.bss_conf.csa_punct_bitmap;
3558                 changed |= BSS_CHANGED_EHT_PUNCTURING;
3559         }
3560
3561         /*
3562          * using reservation isn't immediate as it may be deferred until later
3563          * with multi-vif. once reservation is complete it will re-schedule the
3564          * work with no reserved_chanctx so verify chandef to check if it
3565          * completed successfully
3566          */
3567
3568         if (sdata->deflink.reserved_chanctx) {
3569                 /*
3570                  * with multi-vif csa driver may call ieee80211_csa_finish()
3571                  * many times while waiting for other interfaces to use their
3572                  * reservations
3573                  */
3574                 if (sdata->deflink.reserved_ready)
3575                         return 0;
3576
3577                 return ieee80211_link_use_reserved_context(&sdata->deflink);
3578         }
3579
3580         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3581                                         &sdata->deflink.csa_chandef))
3582                 return -EINVAL;
3583
3584         sdata->vif.bss_conf.csa_active = false;
3585
3586         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3587         if (err)
3588                 return err;
3589
3590         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
3591
3592         if (sdata->deflink.csa_block_tx) {
3593                 ieee80211_wake_vif_queues(local, sdata,
3594                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3595                 sdata->deflink.csa_block_tx = false;
3596         }
3597
3598         err = drv_post_channel_switch(sdata);
3599         if (err)
3600                 return err;
3601
3602         cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0,
3603                                   sdata->vif.bss_conf.eht_puncturing);
3604
3605         return 0;
3606 }
3607
3608 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3609 {
3610         if (__ieee80211_csa_finalize(sdata)) {
3611                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3612                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3613                                     GFP_KERNEL);
3614         }
3615 }
3616
3617 void ieee80211_csa_finalize_work(struct work_struct *work)
3618 {
3619         struct ieee80211_sub_if_data *sdata =
3620                 container_of(work, struct ieee80211_sub_if_data,
3621                              deflink.csa_finalize_work);
3622         struct ieee80211_local *local = sdata->local;
3623
3624         sdata_lock(sdata);
3625         mutex_lock(&local->mtx);
3626         mutex_lock(&local->chanctx_mtx);
3627
3628         /* AP might have been stopped while waiting for the lock. */
3629         if (!sdata->vif.bss_conf.csa_active)
3630                 goto unlock;
3631
3632         if (!ieee80211_sdata_running(sdata))
3633                 goto unlock;
3634
3635         ieee80211_csa_finalize(sdata);
3636
3637 unlock:
3638         mutex_unlock(&local->chanctx_mtx);
3639         mutex_unlock(&local->mtx);
3640         sdata_unlock(sdata);
3641 }
3642
3643 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3644                                     struct cfg80211_csa_settings *params,
3645                                     u32 *changed)
3646 {
3647         struct ieee80211_csa_settings csa = {};
3648         int err;
3649
3650         switch (sdata->vif.type) {
3651         case NL80211_IFTYPE_AP:
3652                 sdata->deflink.u.ap.next_beacon =
3653                         cfg80211_beacon_dup(&params->beacon_after);
3654                 if (!sdata->deflink.u.ap.next_beacon)
3655                         return -ENOMEM;
3656
3657                 /*
3658                  * With a count of 0, we don't have to wait for any
3659                  * TBTT before switching, so complete the CSA
3660                  * immediately.  In theory, with a count == 1 we
3661                  * should delay the switch until just before the next
3662                  * TBTT, but that would complicate things so we switch
3663                  * immediately too.  If we would delay the switch
3664                  * until the next TBTT, we would have to set the probe
3665                  * response here.
3666                  *
3667                  * TODO: A channel switch with count <= 1 without
3668                  * sending a CSA action frame is kind of useless,
3669                  * because the clients won't know we're changing
3670                  * channels.  The action frame must be implemented
3671                  * either here or in the userspace.
3672                  */
3673                 if (params->count <= 1)
3674                         break;
3675
3676                 if ((params->n_counter_offsets_beacon >
3677                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3678                     (params->n_counter_offsets_presp >
3679                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3680                         ieee80211_free_next_beacon(&sdata->deflink);
3681                         return -EINVAL;
3682                 }
3683
3684                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3685                 csa.counter_offsets_presp = params->counter_offsets_presp;
3686                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3687                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3688                 csa.count = params->count;
3689
3690                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3691                                               &params->beacon_csa, &csa,
3692                                               NULL);
3693                 if (err < 0) {
3694                         ieee80211_free_next_beacon(&sdata->deflink);
3695                         return err;
3696                 }
3697                 *changed |= err;
3698
3699                 break;
3700         case NL80211_IFTYPE_ADHOC:
3701                 if (!sdata->vif.cfg.ibss_joined)
3702                         return -EINVAL;
3703
3704                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3705                         return -EINVAL;
3706
3707                 switch (params->chandef.width) {
3708                 case NL80211_CHAN_WIDTH_40:
3709                         if (cfg80211_get_chandef_type(&params->chandef) !=
3710                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3711                                 return -EINVAL;
3712                         break;
3713                 case NL80211_CHAN_WIDTH_5:
3714                 case NL80211_CHAN_WIDTH_10:
3715                 case NL80211_CHAN_WIDTH_20_NOHT:
3716                 case NL80211_CHAN_WIDTH_20:
3717                         break;
3718                 default:
3719                         return -EINVAL;
3720                 }
3721
3722                 /* changes into another band are not supported */
3723                 if (sdata->u.ibss.chandef.chan->band !=
3724                     params->chandef.chan->band)
3725                         return -EINVAL;
3726
3727                 /* see comments in the NL80211_IFTYPE_AP block */
3728                 if (params->count > 1) {
3729                         err = ieee80211_ibss_csa_beacon(sdata, params);
3730                         if (err < 0)
3731                                 return err;
3732                         *changed |= err;
3733                 }
3734
3735                 ieee80211_send_action_csa(sdata, params);
3736
3737                 break;
3738 #ifdef CONFIG_MAC80211_MESH
3739         case NL80211_IFTYPE_MESH_POINT: {
3740                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3741
3742                 /* changes into another band are not supported */
3743                 if (sdata->vif.bss_conf.chandef.chan->band !=
3744                     params->chandef.chan->band)
3745                         return -EINVAL;
3746
3747                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3748                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3749                         if (!ifmsh->pre_value)
3750                                 ifmsh->pre_value = 1;
3751                         else
3752                                 ifmsh->pre_value++;
3753                 }
3754
3755                 /* see comments in the NL80211_IFTYPE_AP block */
3756                 if (params->count > 1) {
3757                         err = ieee80211_mesh_csa_beacon(sdata, params);
3758                         if (err < 0) {
3759                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3760                                 return err;
3761                         }
3762                         *changed |= err;
3763                 }
3764
3765                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3766                         ieee80211_send_action_csa(sdata, params);
3767
3768                 break;
3769                 }
3770 #endif
3771         default:
3772                 return -EOPNOTSUPP;
3773         }
3774
3775         return 0;
3776 }
3777
3778 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data  *sdata)
3779 {
3780         sdata->vif.bss_conf.color_change_active = false;
3781
3782         ieee80211_free_next_beacon(&sdata->deflink);
3783
3784         cfg80211_color_change_aborted_notify(sdata->dev);
3785 }
3786
3787 static int
3788 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3789                            struct cfg80211_csa_settings *params)
3790 {
3791         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3792         struct ieee80211_local *local = sdata->local;
3793         struct ieee80211_channel_switch ch_switch;
3794         struct ieee80211_chanctx_conf *conf;
3795         struct ieee80211_chanctx *chanctx;
3796         u32 changed = 0;
3797         int err;
3798
3799         sdata_assert_lock(sdata);
3800         lockdep_assert_held(&local->mtx);
3801
3802         if (!list_empty(&local->roc_list) || local->scanning)
3803                 return -EBUSY;
3804
3805         if (sdata->wdev.cac_started)
3806                 return -EBUSY;
3807
3808         if (cfg80211_chandef_identical(&params->chandef,
3809                                        &sdata->vif.bss_conf.chandef))
3810                 return -EINVAL;
3811
3812         /* don't allow another channel switch if one is already active. */
3813         if (sdata->vif.bss_conf.csa_active)
3814                 return -EBUSY;
3815
3816         mutex_lock(&local->chanctx_mtx);
3817         conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
3818                                          lockdep_is_held(&local->chanctx_mtx));
3819         if (!conf) {
3820                 err = -EBUSY;
3821                 goto out;
3822         }
3823
3824         if (params->chandef.chan->freq_offset) {
3825                 /* this may work, but is untested */
3826                 err = -EOPNOTSUPP;
3827                 goto out;
3828         }
3829
3830         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3831
3832         ch_switch.timestamp = 0;
3833         ch_switch.device_timestamp = 0;
3834         ch_switch.block_tx = params->block_tx;
3835         ch_switch.chandef = params->chandef;
3836         ch_switch.count = params->count;
3837
3838         err = drv_pre_channel_switch(sdata, &ch_switch);
3839         if (err)
3840                 goto out;
3841
3842         err = ieee80211_link_reserve_chanctx(&sdata->deflink, &params->chandef,
3843                                              chanctx->mode,
3844                                              params->radar_required);
3845         if (err)
3846                 goto out;
3847
3848         /* if reservation is invalid then this will fail */
3849         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3850         if (err) {
3851                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3852                 goto out;
3853         }
3854
3855         /* if there is a color change in progress, abort it */
3856         if (sdata->vif.bss_conf.color_change_active)
3857                 ieee80211_color_change_abort(sdata);
3858
3859         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3860         if (err) {
3861                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3862                 goto out;
3863         }
3864
3865         if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support)
3866                 goto out;
3867
3868         sdata->deflink.csa_chandef = params->chandef;
3869         sdata->deflink.csa_block_tx = params->block_tx;
3870         sdata->vif.bss_conf.csa_active = true;
3871         sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap;
3872
3873         if (sdata->deflink.csa_block_tx)
3874                 ieee80211_stop_vif_queues(local, sdata,
3875                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3876
3877         cfg80211_ch_switch_started_notify(sdata->dev,
3878                                           &sdata->deflink.csa_chandef, 0,
3879                                           params->count, params->block_tx,
3880                                           sdata->vif.bss_conf.csa_punct_bitmap);
3881
3882         if (changed) {
3883                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3884                                                   changed);
3885                 drv_channel_switch_beacon(sdata, &params->chandef);
3886         } else {
3887                 /* if the beacon didn't change, we can finalize immediately */
3888                 ieee80211_csa_finalize(sdata);
3889         }
3890
3891 out:
3892         mutex_unlock(&local->chanctx_mtx);
3893         return err;
3894 }
3895
3896 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3897                              struct cfg80211_csa_settings *params)
3898 {
3899         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3900         struct ieee80211_local *local = sdata->local;
3901         int err;
3902
3903         mutex_lock(&local->mtx);
3904         err = __ieee80211_channel_switch(wiphy, dev, params);
3905         mutex_unlock(&local->mtx);
3906
3907         return err;
3908 }
3909
3910 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3911 {
3912         lockdep_assert_held(&local->mtx);
3913
3914         local->roc_cookie_counter++;
3915
3916         /* wow, you wrapped 64 bits ... more likely a bug */
3917         if (WARN_ON(local->roc_cookie_counter == 0))
3918                 local->roc_cookie_counter++;
3919
3920         return local->roc_cookie_counter;
3921 }
3922
3923 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3924                              u64 *cookie, gfp_t gfp)
3925 {
3926         unsigned long spin_flags;
3927         struct sk_buff *ack_skb;
3928         int id;
3929
3930         ack_skb = skb_copy(skb, gfp);
3931         if (!ack_skb)
3932                 return -ENOMEM;
3933
3934         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3935         id = idr_alloc(&local->ack_status_frames, ack_skb,
3936                        1, 0x2000, GFP_ATOMIC);
3937         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3938
3939         if (id < 0) {
3940                 kfree_skb(ack_skb);
3941                 return -ENOMEM;
3942         }
3943
3944         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3945
3946         *cookie = ieee80211_mgmt_tx_cookie(local);
3947         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3948
3949         return 0;
3950 }
3951
3952 static void
3953 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3954                                           struct wireless_dev *wdev,
3955                                           struct mgmt_frame_regs *upd)
3956 {
3957         struct ieee80211_local *local = wiphy_priv(wiphy);
3958         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3959         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3960         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3961         bool global_change, intf_change;
3962
3963         global_change =
3964                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3965                 (local->rx_mcast_action_reg !=
3966                  !!(upd->global_mcast_stypes & action_mask));
3967         local->probe_req_reg = upd->global_stypes & preq_mask;
3968         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3969
3970         intf_change = (sdata->vif.probe_req_reg !=
3971                        !!(upd->interface_stypes & preq_mask)) ||
3972                 (sdata->vif.rx_mcast_action_reg !=
3973                  !!(upd->interface_mcast_stypes & action_mask));
3974         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3975         sdata->vif.rx_mcast_action_reg =
3976                 upd->interface_mcast_stypes & action_mask;
3977
3978         if (!local->open_count)
3979                 return;
3980
3981         if (intf_change && ieee80211_sdata_running(sdata))
3982                 drv_config_iface_filter(local, sdata,
3983                                         sdata->vif.probe_req_reg ?
3984                                                 FIF_PROBE_REQ : 0,
3985                                         FIF_PROBE_REQ);
3986
3987         if (global_change)
3988                 ieee80211_configure_filter(local);
3989 }
3990
3991 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3992 {
3993         struct ieee80211_local *local = wiphy_priv(wiphy);
3994
3995         if (local->started)
3996                 return -EOPNOTSUPP;
3997
3998         return drv_set_antenna(local, tx_ant, rx_ant);
3999 }
4000
4001 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4002 {
4003         struct ieee80211_local *local = wiphy_priv(wiphy);
4004
4005         return drv_get_antenna(local, tx_ant, rx_ant);
4006 }
4007
4008 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4009                                     struct net_device *dev,
4010                                     struct cfg80211_gtk_rekey_data *data)
4011 {
4012         struct ieee80211_local *local = wiphy_priv(wiphy);
4013         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4014
4015         if (!local->ops->set_rekey_data)
4016                 return -EOPNOTSUPP;
4017
4018         drv_set_rekey_data(local, sdata, data);
4019
4020         return 0;
4021 }
4022
4023 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4024                                   const u8 *peer, u64 *cookie)
4025 {
4026         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4027         struct ieee80211_local *local = sdata->local;
4028         struct ieee80211_qos_hdr *nullfunc;
4029         struct sk_buff *skb;
4030         int size = sizeof(*nullfunc);
4031         __le16 fc;
4032         bool qos;
4033         struct ieee80211_tx_info *info;
4034         struct sta_info *sta;
4035         struct ieee80211_chanctx_conf *chanctx_conf;
4036         enum nl80211_band band;
4037         int ret;
4038
4039         /* the lock is needed to assign the cookie later */
4040         mutex_lock(&local->mtx);
4041
4042         rcu_read_lock();
4043         chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4044         if (WARN_ON(!chanctx_conf)) {
4045                 ret = -EINVAL;
4046                 goto unlock;
4047         }
4048         band = chanctx_conf->def.chan->band;
4049         sta = sta_info_get_bss(sdata, peer);
4050         if (sta) {
4051                 qos = sta->sta.wme;
4052         } else {
4053                 ret = -ENOLINK;
4054                 goto unlock;
4055         }
4056
4057         if (qos) {
4058                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4059                                  IEEE80211_STYPE_QOS_NULLFUNC |
4060                                  IEEE80211_FCTL_FROMDS);
4061         } else {
4062                 size -= 2;
4063                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4064                                  IEEE80211_STYPE_NULLFUNC |
4065                                  IEEE80211_FCTL_FROMDS);
4066         }
4067
4068         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4069         if (!skb) {
4070                 ret = -ENOMEM;
4071                 goto unlock;
4072         }
4073
4074         skb->dev = dev;
4075
4076         skb_reserve(skb, local->hw.extra_tx_headroom);
4077
4078         nullfunc = skb_put(skb, size);
4079         nullfunc->frame_control = fc;
4080         nullfunc->duration_id = 0;
4081         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4082         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4083         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4084         nullfunc->seq_ctrl = 0;
4085
4086         info = IEEE80211_SKB_CB(skb);
4087
4088         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4089                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4090         info->band = band;
4091
4092         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4093         skb->priority = 7;
4094         if (qos)
4095                 nullfunc->qos_ctrl = cpu_to_le16(7);
4096
4097         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4098         if (ret) {
4099                 kfree_skb(skb);
4100                 goto unlock;
4101         }
4102
4103         local_bh_disable();
4104         ieee80211_xmit(sdata, sta, skb);
4105         local_bh_enable();
4106
4107         ret = 0;
4108 unlock:
4109         rcu_read_unlock();
4110         mutex_unlock(&local->mtx);
4111
4112         return ret;
4113 }
4114
4115 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4116                                      struct wireless_dev *wdev,
4117                                      unsigned int link_id,
4118                                      struct cfg80211_chan_def *chandef)
4119 {
4120         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4121         struct ieee80211_local *local = wiphy_priv(wiphy);
4122         struct ieee80211_chanctx_conf *chanctx_conf;
4123         struct ieee80211_link_data *link;
4124         int ret = -ENODATA;
4125
4126         rcu_read_lock();
4127         link = rcu_dereference(sdata->link[link_id]);
4128         if (!link) {
4129                 ret = -ENOLINK;
4130                 goto out;
4131         }
4132
4133         chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4134         if (chanctx_conf) {
4135                 *chandef = link->conf->chandef;
4136                 ret = 0;
4137         } else if (local->open_count > 0 &&
4138                    local->open_count == local->monitors &&
4139                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4140                 if (local->use_chanctx)
4141                         *chandef = local->monitor_chandef;
4142                 else
4143                         *chandef = local->_oper_chandef;
4144                 ret = 0;
4145         }
4146 out:
4147         rcu_read_unlock();
4148
4149         return ret;
4150 }
4151
4152 #ifdef CONFIG_PM
4153 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4154 {
4155         drv_set_wakeup(wiphy_priv(wiphy), enabled);
4156 }
4157 #endif
4158
4159 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4160                                  struct net_device *dev,
4161                                  struct cfg80211_qos_map *qos_map)
4162 {
4163         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4164         struct mac80211_qos_map *new_qos_map, *old_qos_map;
4165
4166         if (qos_map) {
4167                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4168                 if (!new_qos_map)
4169                         return -ENOMEM;
4170                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4171         } else {
4172                 /* A NULL qos_map was passed to disable QoS mapping */
4173                 new_qos_map = NULL;
4174         }
4175
4176         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4177         rcu_assign_pointer(sdata->qos_map, new_qos_map);
4178         if (old_qos_map)
4179                 kfree_rcu(old_qos_map, rcu_head);
4180
4181         return 0;
4182 }
4183
4184 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4185                                       struct net_device *dev,
4186                                       unsigned int link_id,
4187                                       struct cfg80211_chan_def *chandef)
4188 {
4189         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4190         struct ieee80211_link_data *link;
4191         int ret;
4192         u64 changed = 0;
4193
4194         link = sdata_dereference(sdata->link[link_id], sdata);
4195
4196         ret = ieee80211_link_change_bandwidth(link, chandef, &changed);
4197         if (ret == 0)
4198                 ieee80211_link_info_change_notify(sdata, link, changed);
4199
4200         return ret;
4201 }
4202
4203 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4204                                u8 tsid, const u8 *peer, u8 up,
4205                                u16 admitted_time)
4206 {
4207         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4208         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4209         int ac = ieee802_1d_to_ac[up];
4210
4211         if (sdata->vif.type != NL80211_IFTYPE_STATION)
4212                 return -EOPNOTSUPP;
4213
4214         if (!(sdata->wmm_acm & BIT(up)))
4215                 return -EINVAL;
4216
4217         if (ifmgd->tx_tspec[ac].admitted_time)
4218                 return -EBUSY;
4219
4220         if (admitted_time) {
4221                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4222                 ifmgd->tx_tspec[ac].tsid = tsid;
4223                 ifmgd->tx_tspec[ac].up = up;
4224         }
4225
4226         return 0;
4227 }
4228
4229 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4230                                u8 tsid, const u8 *peer)
4231 {
4232         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4233         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4234         struct ieee80211_local *local = wiphy_priv(wiphy);
4235         int ac;
4236
4237         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4238                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4239
4240                 /* skip unused entries */
4241                 if (!tx_tspec->admitted_time)
4242                         continue;
4243
4244                 if (tx_tspec->tsid != tsid)
4245                         continue;
4246
4247                 /* due to this new packets will be reassigned to non-ACM ACs */
4248                 tx_tspec->up = -1;
4249
4250                 /* Make sure that all packets have been sent to avoid to
4251                  * restore the QoS params on packets that are still on the
4252                  * queues.
4253                  */
4254                 synchronize_net();
4255                 ieee80211_flush_queues(local, sdata, false);
4256
4257                 /* restore the normal QoS parameters
4258                  * (unconditionally to avoid races)
4259                  */
4260                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4261                 tx_tspec->downgraded = false;
4262                 ieee80211_sta_handle_tspec_ac_params(sdata);
4263
4264                 /* finally clear all the data */
4265                 memset(tx_tspec, 0, sizeof(*tx_tspec));
4266
4267                 return 0;
4268         }
4269
4270         return -ENOENT;
4271 }
4272
4273 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4274                                    u8 inst_id,
4275                                    enum nl80211_nan_func_term_reason reason,
4276                                    gfp_t gfp)
4277 {
4278         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4279         struct cfg80211_nan_func *func;
4280         u64 cookie;
4281
4282         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4283                 return;
4284
4285         spin_lock_bh(&sdata->u.nan.func_lock);
4286
4287         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4288         if (WARN_ON(!func)) {
4289                 spin_unlock_bh(&sdata->u.nan.func_lock);
4290                 return;
4291         }
4292
4293         cookie = func->cookie;
4294         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4295
4296         spin_unlock_bh(&sdata->u.nan.func_lock);
4297
4298         cfg80211_free_nan_func(func);
4299
4300         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4301                                      reason, cookie, gfp);
4302 }
4303 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4304
4305 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4306                               struct cfg80211_nan_match_params *match,
4307                               gfp_t gfp)
4308 {
4309         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4310         struct cfg80211_nan_func *func;
4311
4312         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4313                 return;
4314
4315         spin_lock_bh(&sdata->u.nan.func_lock);
4316
4317         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
4318         if (WARN_ON(!func)) {
4319                 spin_unlock_bh(&sdata->u.nan.func_lock);
4320                 return;
4321         }
4322         match->cookie = func->cookie;
4323
4324         spin_unlock_bh(&sdata->u.nan.func_lock);
4325
4326         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4327 }
4328 EXPORT_SYMBOL(ieee80211_nan_func_match);
4329
4330 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4331                                               struct net_device *dev,
4332                                               const bool enabled)
4333 {
4334         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4335
4336         sdata->u.ap.multicast_to_unicast = enabled;
4337
4338         return 0;
4339 }
4340
4341 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4342                               struct txq_info *txqi)
4343 {
4344         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4345                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4346                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4347         }
4348
4349         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4350                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4351                 txqstats->backlog_packets = txqi->tin.backlog_packets;
4352         }
4353
4354         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4355                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4356                 txqstats->flows = txqi->tin.flows;
4357         }
4358
4359         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4360                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4361                 txqstats->drops = txqi->cstats.drop_count;
4362         }
4363
4364         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4365                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4366                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4367         }
4368
4369         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4370                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4371                 txqstats->overlimit = txqi->tin.overlimit;
4372         }
4373
4374         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4375                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4376                 txqstats->collisions = txqi->tin.collisions;
4377         }
4378
4379         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4380                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4381                 txqstats->tx_bytes = txqi->tin.tx_bytes;
4382         }
4383
4384         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4385                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4386                 txqstats->tx_packets = txqi->tin.tx_packets;
4387         }
4388 }
4389
4390 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4391                                    struct wireless_dev *wdev,
4392                                    struct cfg80211_txq_stats *txqstats)
4393 {
4394         struct ieee80211_local *local = wiphy_priv(wiphy);
4395         struct ieee80211_sub_if_data *sdata;
4396         int ret = 0;
4397
4398         spin_lock_bh(&local->fq.lock);
4399         rcu_read_lock();
4400
4401         if (wdev) {
4402                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4403                 if (!sdata->vif.txq) {
4404                         ret = 1;
4405                         goto out;
4406                 }
4407                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4408         } else {
4409                 /* phy stats */
4410                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4411                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4412                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4413                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4414                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
4415                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4416                 txqstats->backlog_packets = local->fq.backlog;
4417                 txqstats->backlog_bytes = local->fq.memory_usage;
4418                 txqstats->overlimit = local->fq.overlimit;
4419                 txqstats->overmemory = local->fq.overmemory;
4420                 txqstats->collisions = local->fq.collisions;
4421                 txqstats->max_flows = local->fq.flows_cnt;
4422         }
4423
4424 out:
4425         rcu_read_unlock();
4426         spin_unlock_bh(&local->fq.lock);
4427
4428         return ret;
4429 }
4430
4431 static int
4432 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4433                                   struct net_device *dev,
4434                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4435 {
4436         struct ieee80211_local *local = wiphy_priv(wiphy);
4437         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4438
4439         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4440 }
4441
4442 static int
4443 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4444                      struct cfg80211_pmsr_request *request)
4445 {
4446         struct ieee80211_local *local = wiphy_priv(wiphy);
4447         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4448
4449         return drv_start_pmsr(local, sdata, request);
4450 }
4451
4452 static void
4453 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4454                      struct cfg80211_pmsr_request *request)
4455 {
4456         struct ieee80211_local *local = wiphy_priv(wiphy);
4457         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4458
4459         return drv_abort_pmsr(local, sdata, request);
4460 }
4461
4462 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4463                                     struct net_device *dev,
4464                                     struct cfg80211_tid_config *tid_conf)
4465 {
4466         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4467         struct sta_info *sta;
4468         int ret;
4469
4470         if (!sdata->local->ops->set_tid_config)
4471                 return -EOPNOTSUPP;
4472
4473         if (!tid_conf->peer)
4474                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4475
4476         mutex_lock(&sdata->local->sta_mtx);
4477         sta = sta_info_get_bss(sdata, tid_conf->peer);
4478         if (!sta) {
4479                 mutex_unlock(&sdata->local->sta_mtx);
4480                 return -ENOENT;
4481         }
4482
4483         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4484         mutex_unlock(&sdata->local->sta_mtx);
4485
4486         return ret;
4487 }
4488
4489 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4490                                       struct net_device *dev,
4491                                       const u8 *peer, u8 tids)
4492 {
4493         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4494         struct sta_info *sta;
4495         int ret;
4496
4497         if (!sdata->local->ops->reset_tid_config)
4498                 return -EOPNOTSUPP;
4499
4500         if (!peer)
4501                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4502
4503         mutex_lock(&sdata->local->sta_mtx);
4504         sta = sta_info_get_bss(sdata, peer);
4505         if (!sta) {
4506                 mutex_unlock(&sdata->local->sta_mtx);
4507                 return -ENOENT;
4508         }
4509
4510         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4511         mutex_unlock(&sdata->local->sta_mtx);
4512
4513         return ret;
4514 }
4515
4516 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4517                                    struct cfg80211_sar_specs *sar)
4518 {
4519         struct ieee80211_local *local = wiphy_priv(wiphy);
4520
4521         if (!local->ops->set_sar_specs)
4522                 return -EOPNOTSUPP;
4523
4524         return local->ops->set_sar_specs(&local->hw, sar);
4525 }
4526
4527 static int
4528 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4529                                         u32 *changed)
4530 {
4531         switch (sdata->vif.type) {
4532         case NL80211_IFTYPE_AP: {
4533                 int ret;
4534
4535                 if (!sdata->deflink.u.ap.next_beacon)
4536                         return -EINVAL;
4537
4538                 ret = ieee80211_assign_beacon(sdata, &sdata->deflink,
4539                                               sdata->deflink.u.ap.next_beacon,
4540                                               NULL, NULL);
4541                 ieee80211_free_next_beacon(&sdata->deflink);
4542
4543                 if (ret < 0)
4544                         return ret;
4545
4546                 *changed |= ret;
4547                 break;
4548         }
4549         default:
4550                 WARN_ON_ONCE(1);
4551                 return -EINVAL;
4552         }
4553
4554         return 0;
4555 }
4556
4557 static int
4558 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4559                                   struct cfg80211_color_change_settings *params,
4560                                   u32 *changed)
4561 {
4562         struct ieee80211_color_change_settings color_change = {};
4563         int err;
4564
4565         switch (sdata->vif.type) {
4566         case NL80211_IFTYPE_AP:
4567                 sdata->deflink.u.ap.next_beacon =
4568                         cfg80211_beacon_dup(&params->beacon_next);
4569                 if (!sdata->deflink.u.ap.next_beacon)
4570                         return -ENOMEM;
4571
4572                 if (params->count <= 1)
4573                         break;
4574
4575                 color_change.counter_offset_beacon =
4576                         params->counter_offset_beacon;
4577                 color_change.counter_offset_presp =
4578                         params->counter_offset_presp;
4579                 color_change.count = params->count;
4580
4581                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
4582                                               &params->beacon_color_change,
4583                                               NULL, &color_change);
4584                 if (err < 0) {
4585                         ieee80211_free_next_beacon(&sdata->deflink);
4586                         return err;
4587                 }
4588                 *changed |= err;
4589                 break;
4590         default:
4591                 return -EOPNOTSUPP;
4592         }
4593
4594         return 0;
4595 }
4596
4597 static void
4598 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4599                                          u8 color, int enable, u32 changed)
4600 {
4601         sdata->vif.bss_conf.he_bss_color.color = color;
4602         sdata->vif.bss_conf.he_bss_color.enabled = enable;
4603         changed |= BSS_CHANGED_HE_BSS_COLOR;
4604
4605         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
4606
4607         if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4608                 struct ieee80211_sub_if_data *child;
4609
4610                 mutex_lock(&sdata->local->iflist_mtx);
4611                 list_for_each_entry(child, &sdata->local->interfaces, list) {
4612                         if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4613                                 child->vif.bss_conf.he_bss_color.color = color;
4614                                 child->vif.bss_conf.he_bss_color.enabled = enable;
4615                                 ieee80211_link_info_change_notify(child,
4616                                                                   &child->deflink,
4617                                                                   BSS_CHANGED_HE_BSS_COLOR);
4618                         }
4619                 }
4620                 mutex_unlock(&sdata->local->iflist_mtx);
4621         }
4622 }
4623
4624 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4625 {
4626         struct ieee80211_local *local = sdata->local;
4627         u32 changed = 0;
4628         int err;
4629
4630         sdata_assert_lock(sdata);
4631         lockdep_assert_held(&local->mtx);
4632
4633         sdata->vif.bss_conf.color_change_active = false;
4634
4635         err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4636         if (err) {
4637                 cfg80211_color_change_aborted_notify(sdata->dev);
4638                 return err;
4639         }
4640
4641         ieee80211_color_change_bss_config_notify(sdata,
4642                                                  sdata->vif.bss_conf.color_change_color,
4643                                                  1, changed);
4644         cfg80211_color_change_notify(sdata->dev);
4645
4646         return 0;
4647 }
4648
4649 void ieee80211_color_change_finalize_work(struct work_struct *work)
4650 {
4651         struct ieee80211_sub_if_data *sdata =
4652                 container_of(work, struct ieee80211_sub_if_data,
4653                              deflink.color_change_finalize_work);
4654         struct ieee80211_local *local = sdata->local;
4655
4656         sdata_lock(sdata);
4657         mutex_lock(&local->mtx);
4658
4659         /* AP might have been stopped while waiting for the lock. */
4660         if (!sdata->vif.bss_conf.color_change_active)
4661                 goto unlock;
4662
4663         if (!ieee80211_sdata_running(sdata))
4664                 goto unlock;
4665
4666         ieee80211_color_change_finalize(sdata);
4667
4668 unlock:
4669         mutex_unlock(&local->mtx);
4670         sdata_unlock(sdata);
4671 }
4672
4673 void ieee80211_color_collision_detection_work(struct work_struct *work)
4674 {
4675         struct delayed_work *delayed_work = to_delayed_work(work);
4676         struct ieee80211_link_data *link =
4677                 container_of(delayed_work, struct ieee80211_link_data,
4678                              color_collision_detect_work);
4679         struct ieee80211_sub_if_data *sdata = link->sdata;
4680
4681         sdata_lock(sdata);
4682         cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap);
4683         sdata_unlock(sdata);
4684 }
4685
4686 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4687 {
4688         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4689
4690         ieee80211_queue_work(&sdata->local->hw,
4691                              &sdata->deflink.color_change_finalize_work);
4692 }
4693 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4694
4695 void
4696 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4697                                        u64 color_bitmap, gfp_t gfp)
4698 {
4699         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4700         struct ieee80211_link_data *link = &sdata->deflink;
4701
4702         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4703                 return;
4704
4705         if (delayed_work_pending(&link->color_collision_detect_work))
4706                 return;
4707
4708         link->color_bitmap = color_bitmap;
4709         /* queue the color collision detection event every 500 ms in order to
4710          * avoid sending too much netlink messages to userspace.
4711          */
4712         ieee80211_queue_delayed_work(&sdata->local->hw,
4713                                      &link->color_collision_detect_work,
4714                                      msecs_to_jiffies(500));
4715 }
4716 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4717
4718 static int
4719 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4720                        struct cfg80211_color_change_settings *params)
4721 {
4722         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4723         struct ieee80211_local *local = sdata->local;
4724         u32 changed = 0;
4725         int err;
4726
4727         sdata_assert_lock(sdata);
4728
4729         if (sdata->vif.bss_conf.nontransmitted)
4730                 return -EINVAL;
4731
4732         mutex_lock(&local->mtx);
4733
4734         /* don't allow another color change if one is already active or if csa
4735          * is active
4736          */
4737         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4738                 err = -EBUSY;
4739                 goto out;
4740         }
4741
4742         err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4743         if (err)
4744                 goto out;
4745
4746         sdata->vif.bss_conf.color_change_active = true;
4747         sdata->vif.bss_conf.color_change_color = params->color;
4748
4749         cfg80211_color_change_started_notify(sdata->dev, params->count);
4750
4751         if (changed)
4752                 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4753         else
4754                 /* if the beacon didn't change, we can finalize immediately */
4755                 ieee80211_color_change_finalize(sdata);
4756
4757 out:
4758         mutex_unlock(&local->mtx);
4759
4760         return err;
4761 }
4762
4763 static int
4764 ieee80211_set_radar_background(struct wiphy *wiphy,
4765                                struct cfg80211_chan_def *chandef)
4766 {
4767         struct ieee80211_local *local = wiphy_priv(wiphy);
4768
4769         if (!local->ops->set_radar_background)
4770                 return -EOPNOTSUPP;
4771
4772         return local->ops->set_radar_background(&local->hw, chandef);
4773 }
4774
4775 static int ieee80211_add_intf_link(struct wiphy *wiphy,
4776                                    struct wireless_dev *wdev,
4777                                    unsigned int link_id)
4778 {
4779         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4780
4781         if (wdev->use_4addr)
4782                 return -EOPNOTSUPP;
4783
4784         return ieee80211_vif_set_links(sdata, wdev->valid_links);
4785 }
4786
4787 static void ieee80211_del_intf_link(struct wiphy *wiphy,
4788                                     struct wireless_dev *wdev,
4789                                     unsigned int link_id)
4790 {
4791         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4792
4793         ieee80211_vif_set_links(sdata, wdev->valid_links);
4794 }
4795
4796 static int sta_add_link_station(struct ieee80211_local *local,
4797                                 struct ieee80211_sub_if_data *sdata,
4798                                 struct link_station_parameters *params)
4799 {
4800         struct sta_info *sta;
4801         int ret;
4802
4803         sta = sta_info_get_bss(sdata, params->mld_mac);
4804         if (!sta)
4805                 return -ENOENT;
4806
4807         if (!sta->sta.valid_links)
4808                 return -EINVAL;
4809
4810         if (sta->sta.valid_links & BIT(params->link_id))
4811                 return -EALREADY;
4812
4813         ret = ieee80211_sta_allocate_link(sta, params->link_id);
4814         if (ret)
4815                 return ret;
4816
4817         ret = sta_link_apply_parameters(local, sta, true, params);
4818         if (ret) {
4819                 ieee80211_sta_free_link(sta, params->link_id);
4820                 return ret;
4821         }
4822
4823         /* ieee80211_sta_activate_link frees the link upon failure */
4824         return ieee80211_sta_activate_link(sta, params->link_id);
4825 }
4826
4827 static int
4828 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4829                            struct link_station_parameters *params)
4830 {
4831         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4832         struct ieee80211_local *local = wiphy_priv(wiphy);
4833         int ret;
4834
4835         mutex_lock(&sdata->local->sta_mtx);
4836         ret = sta_add_link_station(local, sdata, params);
4837         mutex_unlock(&sdata->local->sta_mtx);
4838
4839         return ret;
4840 }
4841
4842 static int sta_mod_link_station(struct ieee80211_local *local,
4843                                 struct ieee80211_sub_if_data *sdata,
4844                                 struct link_station_parameters *params)
4845 {
4846         struct sta_info *sta;
4847
4848         sta = sta_info_get_bss(sdata, params->mld_mac);
4849         if (!sta)
4850                 return -ENOENT;
4851
4852         if (!(sta->sta.valid_links & BIT(params->link_id)))
4853                 return -EINVAL;
4854
4855         return sta_link_apply_parameters(local, sta, false, params);
4856 }
4857
4858 static int
4859 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
4860                            struct link_station_parameters *params)
4861 {
4862         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4863         struct ieee80211_local *local = wiphy_priv(wiphy);
4864         int ret;
4865
4866         mutex_lock(&sdata->local->sta_mtx);
4867         ret = sta_mod_link_station(local, sdata, params);
4868         mutex_unlock(&sdata->local->sta_mtx);
4869
4870         return ret;
4871 }
4872
4873 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata,
4874                                 struct link_station_del_parameters *params)
4875 {
4876         struct sta_info *sta;
4877
4878         sta = sta_info_get_bss(sdata, params->mld_mac);
4879         if (!sta)
4880                 return -ENOENT;
4881
4882         if (!(sta->sta.valid_links & BIT(params->link_id)))
4883                 return -EINVAL;
4884
4885         /* must not create a STA without links */
4886         if (sta->sta.valid_links == BIT(params->link_id))
4887                 return -EINVAL;
4888
4889         ieee80211_sta_remove_link(sta, params->link_id);
4890
4891         return 0;
4892 }
4893
4894 static int
4895 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
4896                            struct link_station_del_parameters *params)
4897 {
4898         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4899         int ret;
4900
4901         mutex_lock(&sdata->local->sta_mtx);
4902         ret = sta_del_link_station(sdata, params);
4903         mutex_unlock(&sdata->local->sta_mtx);
4904
4905         return ret;
4906 }
4907
4908 const struct cfg80211_ops mac80211_config_ops = {
4909         .add_virtual_intf = ieee80211_add_iface,
4910         .del_virtual_intf = ieee80211_del_iface,
4911         .change_virtual_intf = ieee80211_change_iface,
4912         .start_p2p_device = ieee80211_start_p2p_device,
4913         .stop_p2p_device = ieee80211_stop_p2p_device,
4914         .add_key = ieee80211_add_key,
4915         .del_key = ieee80211_del_key,
4916         .get_key = ieee80211_get_key,
4917         .set_default_key = ieee80211_config_default_key,
4918         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4919         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4920         .start_ap = ieee80211_start_ap,
4921         .change_beacon = ieee80211_change_beacon,
4922         .stop_ap = ieee80211_stop_ap,
4923         .add_station = ieee80211_add_station,
4924         .del_station = ieee80211_del_station,
4925         .change_station = ieee80211_change_station,
4926         .get_station = ieee80211_get_station,
4927         .dump_station = ieee80211_dump_station,
4928         .dump_survey = ieee80211_dump_survey,
4929 #ifdef CONFIG_MAC80211_MESH
4930         .add_mpath = ieee80211_add_mpath,
4931         .del_mpath = ieee80211_del_mpath,
4932         .change_mpath = ieee80211_change_mpath,
4933         .get_mpath = ieee80211_get_mpath,
4934         .dump_mpath = ieee80211_dump_mpath,
4935         .get_mpp = ieee80211_get_mpp,
4936         .dump_mpp = ieee80211_dump_mpp,
4937         .update_mesh_config = ieee80211_update_mesh_config,
4938         .get_mesh_config = ieee80211_get_mesh_config,
4939         .join_mesh = ieee80211_join_mesh,
4940         .leave_mesh = ieee80211_leave_mesh,
4941 #endif
4942         .join_ocb = ieee80211_join_ocb,
4943         .leave_ocb = ieee80211_leave_ocb,
4944         .change_bss = ieee80211_change_bss,
4945         .set_txq_params = ieee80211_set_txq_params,
4946         .set_monitor_channel = ieee80211_set_monitor_channel,
4947         .suspend = ieee80211_suspend,
4948         .resume = ieee80211_resume,
4949         .scan = ieee80211_scan,
4950         .abort_scan = ieee80211_abort_scan,
4951         .sched_scan_start = ieee80211_sched_scan_start,
4952         .sched_scan_stop = ieee80211_sched_scan_stop,
4953         .auth = ieee80211_auth,
4954         .assoc = ieee80211_assoc,
4955         .deauth = ieee80211_deauth,
4956         .disassoc = ieee80211_disassoc,
4957         .join_ibss = ieee80211_join_ibss,
4958         .leave_ibss = ieee80211_leave_ibss,
4959         .set_mcast_rate = ieee80211_set_mcast_rate,
4960         .set_wiphy_params = ieee80211_set_wiphy_params,
4961         .set_tx_power = ieee80211_set_tx_power,
4962         .get_tx_power = ieee80211_get_tx_power,
4963         .rfkill_poll = ieee80211_rfkill_poll,
4964         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4965         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4966         .set_power_mgmt = ieee80211_set_power_mgmt,
4967         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4968         .remain_on_channel = ieee80211_remain_on_channel,
4969         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4970         .mgmt_tx = ieee80211_mgmt_tx,
4971         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4972         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4973         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4974         .update_mgmt_frame_registrations =
4975                 ieee80211_update_mgmt_frame_registrations,
4976         .set_antenna = ieee80211_set_antenna,
4977         .get_antenna = ieee80211_get_antenna,
4978         .set_rekey_data = ieee80211_set_rekey_data,
4979         .tdls_oper = ieee80211_tdls_oper,
4980         .tdls_mgmt = ieee80211_tdls_mgmt,
4981         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4982         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4983         .probe_client = ieee80211_probe_client,
4984         .set_noack_map = ieee80211_set_noack_map,
4985 #ifdef CONFIG_PM
4986         .set_wakeup = ieee80211_set_wakeup,
4987 #endif
4988         .get_channel = ieee80211_cfg_get_channel,
4989         .start_radar_detection = ieee80211_start_radar_detection,
4990         .end_cac = ieee80211_end_cac,
4991         .channel_switch = ieee80211_channel_switch,
4992         .set_qos_map = ieee80211_set_qos_map,
4993         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4994         .add_tx_ts = ieee80211_add_tx_ts,
4995         .del_tx_ts = ieee80211_del_tx_ts,
4996         .start_nan = ieee80211_start_nan,
4997         .stop_nan = ieee80211_stop_nan,
4998         .nan_change_conf = ieee80211_nan_change_conf,
4999         .add_nan_func = ieee80211_add_nan_func,
5000         .del_nan_func = ieee80211_del_nan_func,
5001         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5002         .tx_control_port = ieee80211_tx_control_port,
5003         .get_txq_stats = ieee80211_get_txq_stats,
5004         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5005         .start_pmsr = ieee80211_start_pmsr,
5006         .abort_pmsr = ieee80211_abort_pmsr,
5007         .probe_mesh_link = ieee80211_probe_mesh_link,
5008         .set_tid_config = ieee80211_set_tid_config,
5009         .reset_tid_config = ieee80211_reset_tid_config,
5010         .set_sar_specs = ieee80211_set_sar_specs,
5011         .color_change = ieee80211_color_change,
5012         .set_radar_background = ieee80211_set_radar_background,
5013         .add_intf_link = ieee80211_add_intf_link,
5014         .del_intf_link = ieee80211_del_intf_link,
5015         .add_link_station = ieee80211_add_link_station,
5016         .mod_link_station = ieee80211_mod_link_station,
5017         .del_link_station = ieee80211_del_link_station,
5018 };